CN103767759A - Medical grinding cutter - Google Patents
Medical grinding cutter Download PDFInfo
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- CN103767759A CN103767759A CN201410041760.7A CN201410041760A CN103767759A CN 103767759 A CN103767759 A CN 103767759A CN 201410041760 A CN201410041760 A CN 201410041760A CN 103767759 A CN103767759 A CN 103767759A
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- China
- Prior art keywords
- bistrique
- cutter pipe
- sheath
- grinding
- outer cutter
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B2017/1602—Mills
Abstract
The invention discloses a medical grinding cutter. The cutter comprises a knife tube component and a grinding head, wherein the grinding head is mounted at the front end of the knife tube component; the grinding head can be driven for pitching and self-rotation; the tail end of the grinding head in the circumference direction is hinged to an inner knife tube in a transmission manner; a flexible transmission section is positioned at the front end of the inner knife tube and used to be hinged to the tail end of the grinding head, and can transfer torque. According to the invention, the medical grinding cutter adopts a direct hinging structure to transfer the transmission between the inner knife tube and the grinding head, can conduct a pitching motion, and adopts a flexible transmission structure to compensate axial deviation caused by pitching and transmission; the transmission structure is simple, and the transmission chain is shorter, which facilitates stable control, so that the operative efficiency is improved; the medical grinding cutter also adopts a structure capable of adjusting both the pitching and circumferential positions of the grinding head, so that the universal orientation adjustment is realized; the medical grinding cutter has a good adaptation to an operative site and higher precision; the operative process efficiency can be improved; the pain of the patients can be minimized, and meanwhile, the treatment cost can be reduced.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, the medical grinding knife tool that particularly a kind of orthopaedics surgical operation is used.
Background technology
Carrying out in bone surgery process, sometimes need osseous tissue in body to carry out grinding; In the prior art, grinding generally adopts power handle directly to drive bistrique rotation to carry out grinding.Owing to directly driving bistrique by power handle, and bistrique stretches into inside of human body; For the darker operative site of deep formation, for the comparatively difficulty of control of bistrique; Particularly, for the difference at grinding position, cannot change grinding position by external force control bistrique, use and do not realize flexibly and easily, operation efficiency is lower.
In order to address the above problem, there is a kind of flexible bistrique, carry out pitching action by controlling bistrique, to adapt to the change at grinding position; The bistrique of this structure adopts universal joint to carry out connection for transmission, structure and manufacturing process complexity, and increased the radius of cutter, the above-mentioned operation of orthopaedics generally requires grinding knife tool entire outer diameter less, otherwise cutter cannot arrive in operative site or operation process and move interference.Meanwhile, in this structure, between bistrique and interior cutter pipe, in order to realize elevating movement and to rotate when transmission and carry out, adopt the syndeton of Universal-head, complex structure and control unstable; And this structure only has pitching action, cannot realize the adaptation operation after circumferencial direction grinding position changes, only have cutter and driving handle entirety are turned to, it is very inconvenient to use; And it drives the actuator of pitching also comparatively original, affect the compactedness of cutter.
Therefore, need a kind of medical grinding knife tool, in operation process, can make bistrique realize longitudinal and circumferential position adjustments, there is good adaptability for operative site, there is good accuracy, improve operation process efficiency, restore cycle after desmopyknosis, when alleviating patient painful, reduce treatment cost; And Whole-dismountable, simple in structure, driving-chain is short, is easy to stable control, improves the efficiency of operation.
Summary of the invention
In view of this, the invention provides a kind of medical grinding knife tool, in operation process, can make bistrique realize longitudinal and circumferential position adjustments, there is good adaptability for operative site, there is good accuracy, improve operation process efficiency, restore cycle after desmopyknosis, when alleviating patient painful, reduce treatment cost; And Whole-dismountable, simple in structure, driving-chain is short, is easy to stable control, improves the efficiency of operation.
Medical grinding knife tool of the present invention, comprise cutter pipe assembly and the bistrique that is installed on cutter pipe assembly front end, described bistrique arranges in the mode that can be driven pitching and rotation, it is characterized in that: described cutter pipe assembly comprises the interior cutter pipe that is placed on outer cutter pipe and coordinates with bistrique transmission in outer cutter pipe and coaxial rotation cooperation, described bistrique tail end is articulated with interior cutter pipe in the mode of circumferencial direction transmission, and described interior cutter pipe is at least positioned at its front end and is provided with for Flexible Transmission section hinged with bistrique tail end and can transmitting torque.
Further, described bistrique tail end forms open-ended hinged groove, and described Flexible Transmission section front end transmission coordinates and is provided with for joining with hinged groove the axle shape articulated section coordinating;
Further, described bistrique tail end forms hinged groove, described Flexible Transmission section front end transmission coordinate be provided with for the hinged axle shape articulated section coordinating of hinged groove, this axle shape articulated section and Flexible Transmission section formation T shape structure;
Further, Flexible Transmission section is connected root necking down in T shape plane with axle shape articulated section;
Further, described bistrique is provided with grinding-head handle, and described hinged groove is positioned at the tail end of grinding-head handle; The hinged bistrique that is provided with of described outer cutter pipe front end single-degree-of-freedom is installed sheath, is placed on bistrique sheath is installed in described grinding-head handle single-degree-of-freedom is rotatably assorted, and the grinding sword of bistrique extends forward bistrique sheath is installed; Described Flexible Transmission section is connected in interior cutter pipe front end, and described axle shape articulated section is integrally formed in Flexible Transmission section front end;
Further, described outer cutter pipe can be driven its mode of along the circumferential direction rotating to arrange, and bistrique installation sheath and bistrique be arranged in the mode that can be driven revolution;
Further, also comprise connection handle and driven unit, described driven unit comprises for driving bistrique that the pitching driven unit of sheath elevating movement and the direction driven unit for driving outer cutter pipe along the circumferential direction to rotate are installed;
Described pitching driven unit comprises reciprocal middleware and reciprocal actuator, described reciprocal middleware front end connects bistrique in the mode that can drive bistrique that sheath elevating movement is installed sheath is installed, back and forth middleware rear end at least axially can drive and coordinate with reciprocal actuator, and described reciprocal actuator and connection handle coordinate in the axial mode of relative motion;
Described direction driven unit comprise with the co-axially fixed adapter sleeve of outer cutter pipe of grinding knife tool and at circumferencial direction fixed axis to the actuating sleeve that is slidably coated at adapter sleeve, described actuating sleeve slide axially can or separate with connection handle engagement realize circumferentially spacing or discharge;
Further, described actuating sleeve is provided with backward pretightning force and this pretightning force make actuating sleeve be close to and circumferentially engage with connection handle front end; Described reciprocal middleware tail end axial restraint is connected with spacer shell, and described spacer shell cylindrical is provided with radial drive bar, and this radial drive bar is rotatably assorted with reciprocal actuator single-degree-of-freedom; Described reciprocal actuator is for establishing female reciprocal actuating sleeve, and the external screw thread that its female thread is provided with connection handle coordinates; Described actuating sleeve back segment is provided with necking down, and back and forth actuating sleeve leading portion is coated at the necking down cylindrical of actuating sleeve, and back segment is coated at connection handle.
The invention also discloses a kind of medical grinding knife tool, comprise cutter pipe assembly and the bistrique that is installed on cutter pipe assembly front end, described bistrique arranges in the mode that can be driven pitching and rotation, described cutter pipe assembly comprises the interior cutter pipe that is placed on outer cutter pipe and coordinates with bistrique transmission in outer cutter pipe and coaxial rotation cooperation, the hinged bistrique that is provided with of described outer cutter pipe front end single-degree-of-freedom is installed sheath, the bistrique of grinding knife tool is provided with grinding-head handle, grinding-head handle single-degree-of-freedom is rotatably assorted and is provided with spacing ring, and grinding-head handle is installed sheath by this spacing ring to be placed on bistrique in can the mode of axial limiting.
Further, described bistrique is installed sheath and is comprised that jacket and inner sleeve is in the inner sleeve of overcoat, described spacing ring radial symmetric is provided with two limit convexes, grinding-head handle cylindrical is provided with for spacing ring being snapped in and having the annular spacing groove of radially activity surplus, in described, be arranged with the shaft orientation opening groove of two radial symmetric, described outer limiting through hole and the overcoat that is arranged with radially perforation is the opening sleeve with axially open; In described grinding-head handle, be placed in inner sleeve, two spacing preiections of spacing ring vertically open slot snap in and one of them spacing preiection embeds in limiting through hole, and another spacing preiection props up outer casing inner wall.
The invention also discloses a kind of medical grinding knife tool, comprise cutter pipe assembly and the bistrique that is installed on cutter pipe assembly front end, described bistrique arranges in the mode that can be driven pitching and rotation, and described cutter pipe assembly comprises the interior cutter pipe that is placed on outer cutter pipe and coordinates with bistrique transmission in outer cutter pipe and coaxial rotation cooperation; The hinged bistrique that is provided with of described outer cutter pipe front end single-degree-of-freedom is installed sheath, and the bistrique of grinding knife tool is along the circumferential direction rotatably assorted and is installed on bistrique installation sheath, and the grinding sword of bistrique extends forward bistrique sheath is installed; Bistrique is installed sheath and is provided with the reciprocal middleware for driving its elevating movement in hinged rotation direction, and described reciprocal middleware is at least installed in sheath elevating movement direction and had activity surplus at bistrique.
Further, back and forth middleware is the intervalve between interior cutter pipe and outer cutter pipe, between described intervalve and interior cutter pipe and outer cutter pipe, all have radially activity surplus, this radially activity surplus is for adapting to the radial displacement that intervalve produces in the time driving bistrique that sheath elevating movement is installed; Described intervalve front end extends to form forward pitching hinge segment for hinged with bistrique installation sheath, and described pitching hinge segment is rigidity.
The invention also discloses a kind of medical grinding knife tool, comprise cutter pipe assembly and the bistrique that is installed on cutter pipe assembly front end, described bistrique arranges in the mode that can be driven pitching and rotation, described cutter pipe assembly comprises the interior cutter pipe that is placed on outer cutter pipe and coordinates with bistrique transmission in outer cutter pipe and coaxial rotation cooperation, outer cutter pipe front end is provided with for bistrique being installed and for the bistrique with rotary bistrique elevating movement, sheath being installed, the mode that described bistrique installation sheath rear end and outer cutter pipe front end embed mutually with articulated joint and hinged groove forms single-degree-of-freedom articulated structure, outer cutter pipe is processed for the hinged position thickening of sheath being installed with bistrique.
Further, described outer cutter pipe is that outer cutter pipe front end is fixedly connected with and is provided with outer cutter pipe hinge segment for the hinged position of sheath being installed with bistrique, outer cutter pipe hinge segment front end face radially forms two arc hinge joints relatively, and the breech face that bistrique is installed sheath radially forms two relatively for making the corresponding embedding of two arc hinge joints the arc hinge access slot with its formation single-degree-of-freedom articulated structure; Described outer cutter pipe hinge segment is formed for by the passage of interior cutter pipe between two arc hinge joints.
Beneficial effect of the present invention: medical grinding knife tool of the present invention, adopt direct articulated structure to transmit the transmission between interior cutter pipe and bistrique, and can carry out elevating movement, the axis runout that utilizes flexible transmission structure compensation to cause due to pitching transmission, drive mechanism is simple, driving-chain is shorter, is beneficial to stable control, thereby improves operation efficiency; And adopt and bistrique can be carried out to the structure that pitching and circumferential position all can regulate, the universal orientation that has realized bistrique regulates, in operation process, can make bistrique realize longitudinal and circumferential position adjustments according to the change of orientation of operation, there is good adaptability for operative site, there is good accuracy, improve operation process efficiency, restore cycle after desmopyknosis, when alleviating patient painful, reduce treatment cost.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is structural representation of the present invention;
Fig. 2 is leading portion cutaway view of the present invention;
Fig. 3 is back segment cutaway view of the present invention;
Fig. 4 is Figure 1A place enlarged drawing;
Fig. 5 is grinding wheel head structure figure;
Fig. 6 is the structure chart of Flexible Transmission section.
The specific embodiment
Fig. 1 is structural representation of the present invention, Fig. 2 is leading portion cutaway view of the present invention, Fig. 3 is back segment cutaway view of the present invention, Fig. 4 is Figure 1A place enlarged drawing, Fig. 5 is grinding wheel head structure figure, Fig. 6 is the structure chart of Flexible Transmission section, as shown in the figure: comprise cutter pipe assembly and the bistrique 1 that is installed on cutter pipe assembly front end, described bistrique 1 arranges in the mode that can be driven pitching and rotation, described cutter pipe assembly comprises the interior cutter pipe 11 that is placed on outer cutter pipe and coordinates with bistrique transmission in outer cutter pipe 3 and coaxial rotation cooperation, described bistrique 1 tail end is articulated with interior cutter pipe 11 in the mode of circumferencial direction transmission, described interior cutter pipe 11 is at least positioned at its front end and is provided with for Flexible Transmission section 13 hinged with bistrique 1 tail end and can transmitting torque, pitching refers to the axis rotation at an angle with respect to cutter pipe assembly, rotation refers to that bistrique carries out the rotation of grinding under driving, this bistrique can be adjusted to cutter pipe assembly coaxial in use, adjusts as required pitch position after entering working environment, and carries out grinding, after pitching, carrying out grinding, transmission is the variation that adapts to transmission axis by Flexible Transmission section.
In the present embodiment, described bistrique 1 tail end forms open-ended hinged groove 1d, and the 13 front end transmissions of described Flexible Transmission section coordinate and are provided with for joining with hinged groove 1d the axle shape articulated section 13a coordinating; Except thering is Flexible Transmission section to adapt to the driving rotation after pitching, hinged groove structure also and between axle shape articulated section has activity surplus, can be adapted to preferably the length difference forming after pitching, so that smooth and easy transmission, and interior cutter pipe and Flexible Transmission section can be extracted in outer cutter pipe to easy installation and removal;
In the present embodiment, axle shape articulated section and Flexible Transmission section form T shape structure, not only can guarantee the transmission intensity of articulated structure, and also cutter pipe pitching hinged place is inwardly passed through after thickening smoothly outside; Certainly, the articulated section of this structure can also be applicable to the structure that hinged groove is not opening.
In the present embodiment, Flexible Transmission section is connected root necking down in T shape plane with axle shape articulated section; In axle shape articulated section, hinged deflecting after as hinged groove can be adapted to the structure of hinged groove to this structure, do not interfere with the cell wall of hinged groove.
In the present embodiment, described bistrique 1 is provided with grinding-head handle 1a, and described hinged groove 1d is positioned at the tail end of grinding-head handle 1a; The hinged bistrique that is provided with of described outer cutter pipe 3 front end single-degree-of-freedoms is installed sheath 4, in described grinding-head handle 1a single-degree-of-freedom is rotatably assorted, be placed on bistrique sheath 4 is installed, the grinding sword of bistrique 1 extends forward bistrique sheath 4 is installed, the fit system that single-degree-of-freedom is rotatably assorted can adopt any mechanical system that can realize this structure, comprises axial mechanical position limitation etc.; Adopt the structure of grinding-head handle 1a, be beneficial to and install and assembling, and be beneficial to the compactedness that guarantees structure, be applicable to this area, and utilize bistrique that sheath 4 is installed and be with rotary bistrique 1 to complete pitching action; Described Flexible Transmission section is connected in interior cutter pipe 11 front ends, and connection can adopt and be threaded or clamping etc., has good adaptability, can change as required Flexible Transmission section, uses with the long period that guarantees cutter; Described axle shape articulated section is integrally formed in Flexible Transmission section front end; The hinged relative motion that refers to the two of single-degree-of-freedom is confined to hinged rotation direction, hinged mode can adopt existing axle articulated structure, because this structure is more prone to tiny, therefore, directly adopt, on parts, hinged groove is set, another component processing goes out the axle shape structure or the chondritic of radial symmetric etc. that coordinate with hinged groove; As shown in the figure, described outer cutter pipe 3 front end faces radially form two arc hinge joint 3a relatively, and the breech face that bistrique is installed sheath 4 radially forms two relatively for making the corresponding embedding of two arc hinge joint 3a the arc hinge access slot 4a with its formation single-degree-of-freedom articulated structure; Simple in structure, easy to process, hinged rotation is flexible, and is easy to dismounting; This structure makes outer cutter tubular axis line and hinge axes in same plane, and motion flexibly;
As shown in the figure, after described grinding-head handle 1a and Flexible Transmission section 13 are hinged, can there is axial activity surplus, form open type articulated structure completely, directly embedding hinged groove by axle shape articulated section forms, and can there is axial surplus, thereby it is smooth and easy to make to move between the two, interior cutter pipe 11 and Flexible Transmission section 13 can be extracted out at any time, convenient cleaning and maintenance; This structure has been removed the universal shaft structure of prior art, has realized the compactness of structure and reducing of volume, is more suitable for the degree of depth and small space.
In the present embodiment, described outer cutter pipe 3 can be driven its mode of along the circumferential direction rotating to arrange, and bistrique installation sheath 4 and bistrique 1 be arranged in the mode that can be driven revolution; Revolution refers to that whole bistrique 1 rotates around the axis of cutter pipe assembly, to reach the object of universal grinding, adopts pitching and two circumferential degree of freedom, is combined to form the duty of multiple directions; This bistrique can be adjusted to cutter pipe assembly coaxial in use, enters and adjusts as required pitching and revolution position after working environment, and carry out grinding.
In the present embodiment, also comprise connection handle 9 and driven unit, described driven unit comprises for driving bistrique that the pitching driven unit of sheath elevating movement and the direction driven unit for driving outer cutter pipe along the circumferential direction to rotate are installed;
Described pitching driven unit comprises reciprocal middleware and reciprocal actuator, described reciprocal middleware front end connects bistrique in the mode that can drive bistrique that sheath elevating movement is installed sheath is installed, be used for driving bistrique that sheath 4 is installed and rotate in the hinged direction of pitching, band rotary bistrique realizes elevating movement; Back and forth middleware rear end at least axially can drive and coordinate with reciprocal actuator, and described reciprocal actuator and connection handle coordinate in the axial mode of relative motion, for driving reciprocal middleware reciprocating motion, to realize the elevating movement of bistrique installation sheath; Described reciprocal actuator and connection handle coordinate in the axial mode of relative motion, can be by threaded engagement or other reciprocating motion and the fit system that can locate at any time.
Described direction driven unit comprise with the co-axially fixed adapter sleeve of outer cutter pipe of grinding knife tool and at circumferencial direction fixed axis to the actuating sleeve 7 that is slidably coated at adapter sleeve, between outer cutter pipe 3 and adapter sleeve 6, adopt and be welded to connect, between adapter sleeve 6 and actuating sleeve 7, can adopt the fit system of axial flat key or spline to realize, not repeat them here; Described actuating sleeve slides axially or to separate with connection handle engagement and realizes circumferentially spacing or release; In this structure, can end face spline be set at connection handle 9 front ends, simultaneously, actuating sleeve 7 tail ends are also provided with end face spline, when actuating sleeve 7 is in the time that external force driving axial slides, can make both ends of the surface spline engagement or separation, reach actuating sleeve 7 is fixed or rotating state relatively; In the time that both ends of the surface spline separates, can rotate and drive adapter sleeve 6 to rotate by manual actuation actuating sleeve 7, thereby drive outer cutter pipe 3 to rotate, make bistrique 1 realize revolution, in conjunction with rotation and the elevating movement of bistrique 1, realize gimbal function.
In the present embodiment, pretightning force and this pretightning force that described actuating sleeve 7 is provided with backward make actuating sleeve be close to and circumferentially engage with connection handle front end, this pretightning force can realize by spring or jump ring, utilizes pretightning force to realize engagement, occurs de-extension problem while avoiding occurring maloperation or operation, as shown in the figure, the interior round-formed spring cavity of actuating sleeve 7, a column spring 14 is coated at adapter sleeve 6 and outer lug boss and the interior round-formed inner convex platform of actuating sleeve 7 that adapter sleeve cylindrical forms withstood respectively at two ends, described reciprocal middleware tail end axial restraint is connected with spacer shell 15, described spacer shell 15 cylindricals are provided with radial drive bar 15a, this radial drive bar 15a is rotatably assorted with reciprocal actuator single-degree-of-freedom, as shown in the figure, by with the gland 16 of connection handle 8 threaded engagement by radial drive bar 15a crimping axial restraint, described reciprocal actuator 8 is for establishing female reciprocal actuating sleeve, and its female thread coordinates with the external screw thread that connection handle 8 is provided with, described actuating sleeve 7 back segments are provided with necking down, and back and forth actuating sleeve leading portion is coated at the necking down cylindrical of actuating sleeve, and back segment is coated at connection handle 8, by rotating reciprocal actuating sleeve and driving radial drive bar 15a to move back and forth, steadily and accurately, avoid the pause and transition in rhythm or melody sense that exists in prior art, meanwhile, threaded engagement makes compactness between all parts and integrity is good, described actuating sleeve 7 back segments are provided with necking down, back and forth actuating sleeve leading portion is coated at the necking down cylindrical of actuating sleeve 7, back and forth round-formed step in actuating sleeve leading portion, this step forms cannelure by the gland connecting, as shown in the figure, radial drive bar 15a is embedded in the circumferential rotating fit structure of formation axial restraint in this cannelure, certainly, radial drive bar 15a can along the circumferential direction arrange multiple, as shown in the figure two are symmetrical arranged also transmission of drive force comparatively uniformly, because radial drive bar is between actuating sleeve and connection handle 9 and reciprocal actuating sleeve, therefore, need to avoid the end face spline between actuating sleeve 7 and connection handle 9, to avoid motion artifacts, back and forth actuating sleeve back segment is coated at connection handle 9, and as shown in the figure, back and forth actuating sleeve back segment is coated at connection handle and threaded engagement, handled easily.
This medical grinding knife tool afterbody is provided with the joint 10 being connected with power, and must be provided with necessary support with connection handle 9 by connection handle 9 inner surfacies, and support spacer shell 17 as shown in the figure, front end is coated at spacer shell 15, in back segment, be placed on sealing transition cover 18, for being rotatably assorted.Sealing transition cover 18 is rotatably assorted, and is provided with necessary sealing ring and sliding bearing etc., does not have self-respect and repeats at this.
The invention also discloses a kind of specific embodiment of medical grinding knife tool, comprise cutter pipe assembly and the bistrique 1 that is installed on cutter pipe assembly front end, described bistrique arranges in the mode that can be driven pitching and rotation, described cutter pipe assembly comprises the interior cutter pipe 11 that is placed on outer cutter pipe 3 and coordinates with bistrique 1 transmission in outer cutter pipe 3 and coaxial rotation cooperation, the hinged bistrique that is provided with of described outer cutter pipe front end single-degree-of-freedom is installed sheath 4, the bistrique 1 of grinding knife tool is provided with grinding-head handle 1a, grinding-head handle 1a single-degree-of-freedom is rotatably assorted and is provided with spacing ring 1c, to be placed on bistrique in can the mode of axial limiting, that sheath 4. is installed is simple in structure by this spacing ring 1c for grinding-head handle 1a, easy disassembling, can directly embed bistrique by spacing ring 1c installs in sheath 4, realize axial limiting, the mode that single-degree-of-freedom is rotatably assorted can be more employing embed the mode of cannelure.
In the present embodiment, described bistrique is installed sheath 4 and is comprised that jacket and inner sleeve is in the inner sleeve 4c of overcoat, described spacing ring 1c radial symmetric is provided with two limit convex 1c1,1c2, grinding-head handle 1a cylindrical is provided with for spacing ring 1c being snapped in and having the annular spacing groove 1b of radially activity surplus, and it is that the annular spacing groove 1b embedding by spacing ring 1c realizes that single-degree-of-freedom is rotatably assorted; Described inner sleeve 4c is provided with shaft orientation opening groove 4c1, the 4c2 of two radial symmetric, and described outer limiting through hole 4b and the overcoat that is arranged with radially perforation is the opening sleeve with axially open; In described grinding-head handle 1a, be placed in inner sleeve 4c, two spacing preiection 1c1, the 1c2 of spacing ring 1c snap in and one of them spacing preiection 1c1 embeds in limiting through hole along shaft orientation opening groove 4c1, the 4c2 of inner sleeve 4c, another limit convex 1c2 rises and props up outer casing inner wall, the overcoat that sheath 4 is installed due to bistrique has axially open, thereby there is elasticity radially, can be used for fixing spacing ring 1c; As shown in the figure, the axially open of overcoat and the limiting through hole overcoat that is distributed at 45 °; When installation, grinding-head handle 1a and spacing ring 1c are inserted in to inner sleeve 4c in together, two limit convex 1c1,1c2 are by limit compression radially, and when spacing ring slides into installation position, one of them spacing preiection 1c1 embeds the limiting through hole of overcoat, realizes axial limiting; When dismounting, spacing preiection 1c1 in limiting through hole 4b is radially pressed down, spacing ring 1c(spacing ring is split ring, conveniently packing annular spacing groove 1b into and be beneficial to distortion) itself and overcoat all can deform, this spacing preiection 1c1 radially inwardly deviates from limiting through hole 4b, can split out grinding-head handle 1a; As shown in the figure, overcoat not only axially has opening, along the circumferential direction also has circumferential slot, and this circumferential slot has opening at aforementioned axial open slot edge, has reduced the difficulty of installation and removal.
The medical grinding knife tool of the present embodiment can be combined with aforesaid technical scheme, to obtain better effect.
The invention also discloses a kind of medical grinding knife tool, comprise cutter pipe assembly and the bistrique that is installed on cutter pipe assembly front end, described bistrique 1 arranges in the mode that can be driven pitching and rotation, and described cutter pipe assembly comprises the interior cutter pipe 11 that is placed on outer cutter pipe 3 and coordinates with bistrique 1 transmission in outer cutter pipe 3 and coaxial rotation cooperation; The hinged bistrique that is provided with of described outer cutter pipe 3 front end single-degree-of-freedoms is installed sheath 4, and the bistrique 1 of grinding knife tool is along the circumferential direction rotatably assorted and is installed on bistrique installation sheath 4, and the grinding sword of bistrique 1 extends forward bistrique sheath 4 is installed; Bistrique is installed sheath 4 and is provided with the reciprocal middleware for driving its elevating movement in hinged rotation direction, and described reciprocal middleware is at least installed in sheath elevating movement direction and had activity surplus at bistrique; Because direct hinged rear bistrique is installed moving radially of reciprocal middleware that sheath 4 elevating movements cause, avoid disturbing adapting to, simple and practical.
In the present embodiment, back and forth middleware is the intervalve 12 between interior cutter pipe 11 and outer cutter pipe 3, between described intervalve 12 and interior cutter pipe 11 and outer cutter pipe 3, all have radially activity surplus, this radially activity surplus is for adapting to the radial displacement that intervalve produces in the time driving bistrique that sheath 4 elevating movement is installed; Described intervalve 12 front ends extend to form forward pitching hinge segment 5 for hinged with bistrique installation sheath, described pitching hinge segment 5 is rigidity, less radial displacement while making intervalve not only utilize radially activity surplus to adapt to bistrique sheath pitching is installed, the rigid structure of pitching hinge segment can drive bistrique that the elevating movement of sheath is installed comparatively smoothly, simple and compact for structure, avoid the volume that labyrinth causes to increase, guarantee carrying out smoothly of operation; As shown in the figure, pitching hinge segment 5 is for rigidity realizes by thickening, this structure thicker
The invention also discloses a kind of medical grinding knife tool specific embodiment, comprise cutter pipe assembly and the bistrique 1 that is installed on cutter pipe assembly front end, described bistrique 1 arranges in the mode that can be driven pitching and rotation, described cutter pipe assembly comprises the interior cutter pipe 11 that is placed on outer cutter pipe 3 and coordinates with bistrique 1 transmission in outer cutter pipe 3 and coaxial rotation cooperation, outer cutter pipe 3 front ends are provided with for bistrique being installed and for the bistrique with rotary bistrique 1 elevating movement, sheath 4 being installed, the mode that described bistrique installation sheath 4 rear ends and outer cutter pipe front end embed mutually with articulated joint and hinged groove forms single-degree-of-freedom articulated structure, outer cutter pipe 3 is processed for the hinged position thickening of sheath 4 being installed with bistrique, the design makes hinge have enough thickness, thereby increase intensity, a narrow and small passage is only stayed in centre, this thickening is processed structure and is beneficial to and in grinding process, increases bending part and bear larger side direction moment of flexure, thereby guarantee carrying out smoothly of operation.
In the present embodiment, described outer cutter pipe 3 is that outer cutter pipe 3 front ends are fixedly connected with and are provided with outer cutter pipe hinge segment 3b for the hinged position of sheath 4 being installed with bistrique, and the connected modes such as outer cutter pipe 3 hinge segment can be threaded connection, welding, do not repeat them here; Outer cutter pipe 3 hinge segment front end faces radially form two arc hinge joint 3a relatively, and the breech face that bistrique is installed sheath 4 radially forms two relatively for making the corresponding embedding of two arc hinge joint 3a the arc hinge access slot 4a with its formation single-degree-of-freedom articulated structure; Described outer cutter pipe hinge segment 3b is formed for by the passage of interior cutter pipe between two arc hinge joint 3a, and the thickening of described outer cutter pipe hinge segment is processed radially inside in this passage; The given shape of interior cutter pipe (comprising Flexible Transmission section) head makes it can be by after the narrow and small passage between two arc hinge joints (because the passage that thickening causes is narrow and small), avoid two arc hinge joints and front end bistrique and form universal joint, be rotated driving; This structure processes and adopts the syndeton of outer cutter pipe hinge segment 3b and outer cutter pipe 3 for the thickening of articulated joint position, not only increased the intensity of hinged place, also convenient installation.
When more than making the specific embodiment in the present invention independently form technical scheme, all technical schemes all can combine, and jointly realize object of the present invention, namely, this structure can independently form scheme or combination and be applied in cutter of the present invention, does not repeat them here;
Finally explanation is, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (14)
1. a medical grinding knife tool, comprise cutter pipe assembly and the bistrique that is installed on cutter pipe assembly front end, described bistrique arranges in the mode that can be driven pitching and rotation, it is characterized in that: described cutter pipe assembly comprises the interior cutter pipe that is placed on outer cutter pipe and coordinates with bistrique transmission in outer cutter pipe and coaxial rotation cooperation, described bistrique tail end is articulated with interior cutter pipe in the mode of circumferencial direction transmission, and described interior cutter pipe is at least positioned at its front end and is provided with for Flexible Transmission section hinged with bistrique tail end and can transmitting torque.
2. medical grinding knife tool according to claim 1, is characterized in that: described bistrique tail end forms open-ended hinged groove, and described Flexible Transmission section front end transmission coordinates and is provided with for joining with hinged groove the axle shape articulated section coordinating.
3. medical grinding knife tool according to claim 1, it is characterized in that: described bistrique tail end forms hinged groove, described Flexible Transmission section front end transmission coordinate be provided with for the hinged axle shape articulated section coordinating of hinged groove, this axle shape articulated section and Flexible Transmission section formation T shape structure.
4. medical grinding knife tool according to claim 3, is characterized in that: Flexible Transmission section is connected root necking down in T shape plane with axle shape articulated section.
5. according to the medical grinding knife tool described in claim 2 or 3, it is characterized in that: described bistrique is provided with grinding-head handle, described hinged groove is positioned at the tail end of grinding-head handle; The hinged bistrique that is provided with of described outer cutter pipe front end single-degree-of-freedom is installed sheath, is placed on bistrique sheath is installed in described grinding-head handle single-degree-of-freedom is rotatably assorted, and the grinding sword of bistrique extends forward bistrique sheath is installed; Described Flexible Transmission section is connected in interior cutter pipe front end, and described axle shape articulated section is integrally formed in Flexible Transmission section front end.
6. medical grinding knife tool according to claim 5, is characterized in that: described outer cutter pipe can be driven its mode of along the circumferential direction rotating to arrange, and bistrique installation sheath and bistrique be arranged in the mode that can be driven revolution.
7. medical grinding knife tool according to claim 6, it is characterized in that: also comprise connection handle and driven unit, described driven unit comprises for driving bistrique that the pitching driven unit of sheath elevating movement and the direction driven unit for driving outer cutter pipe along the circumferential direction to rotate are installed;
Described pitching driven unit comprises reciprocal middleware and reciprocal actuator, described reciprocal middleware front end connects bistrique in the mode that can drive bistrique that sheath elevating movement is installed sheath is installed, back and forth middleware rear end at least axially can drive and coordinate with reciprocal actuator, and described reciprocal actuator and connection handle coordinate in the axial mode of relative motion;
Described direction driven unit comprise with the co-axially fixed adapter sleeve of outer cutter pipe of grinding knife tool and at circumferencial direction fixed axis to the actuating sleeve that is slidably coated at adapter sleeve, described actuating sleeve slide axially can or separate with connection handle engagement realize circumferentially spacing or discharge.
8. medical grinding knife tool according to claim 7, is characterized in that: pretightning force and this pretightning force that described actuating sleeve is provided with backward make actuating sleeve be close to and circumferentially engage with connection handle front end; Described reciprocal middleware tail end axial restraint is connected with spacer shell, and described spacer shell cylindrical is provided with radial drive bar, and this radial drive bar is rotatably assorted with reciprocal actuator single-degree-of-freedom; Described reciprocal actuator is for establishing female reciprocal actuating sleeve, and the external screw thread that its female thread is provided with connection handle coordinates; Described actuating sleeve back segment is provided with necking down, and back and forth actuating sleeve leading portion is coated at the necking down cylindrical of actuating sleeve, and back segment is coated at connection handle.
9. a medical grinding knife tool, comprise cutter pipe assembly and the bistrique that is installed on cutter pipe assembly front end, described bistrique arranges in the mode that can be driven pitching and rotation, it is characterized in that: described cutter pipe assembly comprises the interior cutter pipe that is placed on outer cutter pipe and coordinates with bistrique transmission in outer cutter pipe and coaxial rotation cooperation, the hinged bistrique that is provided with of described outer cutter pipe front end single-degree-of-freedom is installed sheath, the bistrique of grinding knife tool is provided with grinding-head handle, grinding-head handle single-degree-of-freedom is rotatably assorted and is provided with spacing ring, grinding-head handle by this spacing ring with can axial limiting and dismountable mode in be placed on bistrique sheath be installed.
10. medical grinding knife tool according to claim 9, it is characterized in that: described bistrique is installed sheath and comprised that jacket and inner sleeve is in the inner sleeve of overcoat, described spacing ring radial symmetric is provided with two limit convexes, grinding-head handle cylindrical is provided with for spacing ring being snapped in and having the annular spacing groove of radially activity surplus, in described, be arranged with the shaft orientation opening groove of two radial symmetric, described outer limiting through hole and the overcoat that is arranged with radially perforation is the opening sleeve with axially open; Described in described overcoat, in grinding-head handle, be placed in inner sleeve, two spacing preiections of spacing ring vertically open slot snap in and one of them spacing preiection embeds in limiting through hole, and another spacing preiection props up outer casing inner wall.
11. 1 kinds of medical grinding knife tools, comprise cutter pipe assembly and the bistrique that is installed on cutter pipe assembly front end, described bistrique arranges in the mode that can be driven pitching and rotation, it is characterized in that: described cutter pipe assembly comprises the interior cutter pipe that is placed on outer cutter pipe and coordinates with bistrique transmission in outer cutter pipe and coaxial rotation cooperation; The hinged bistrique that is provided with of described outer cutter pipe front end single-degree-of-freedom is installed sheath, and the bistrique of grinding knife tool is along the circumferential direction rotatably assorted and is installed on bistrique installation sheath, and the grinding sword of bistrique extends forward bistrique sheath is installed; Bistrique is installed sheath and is provided with the reciprocal middleware for driving its elevating movement in hinged rotation direction, and described reciprocal middleware is at least installed in sheath elevating movement direction and had activity surplus at bistrique.
12. medical grinding knife tools according to claim 11, it is characterized in that: back and forth middleware is the intervalve between interior cutter pipe and outer cutter pipe, between described intervalve and interior cutter pipe and outer cutter pipe, all have radially activity surplus, this radially activity surplus is for adapting to the radial displacement that intervalve produces in the time driving bistrique that sheath elevating movement is installed; Described intervalve front end extends to form forward pitching hinge segment for hinged with bistrique installation sheath, and described pitching hinge segment is rigidity.
13. 1 kinds of medical grinding knife tools, comprise cutter pipe assembly and the bistrique that is installed on cutter pipe assembly front end, described bistrique arranges in the mode that can be driven pitching and rotation, it is characterized in that: described cutter pipe assembly comprises the interior cutter pipe that is placed on outer cutter pipe and coordinates with bistrique transmission in outer cutter pipe and coaxial rotation cooperation, outer cutter pipe front end is provided with for bistrique being installed and for the bistrique with rotary bistrique elevating movement, sheath being installed, the mode that described bistrique installation sheath rear end and outer cutter pipe front end embed mutually with articulated joint and hinged groove forms single-degree-of-freedom articulated structure, outer cutter pipe is processed for the hinged position thickening of sheath being installed with bistrique.
14. medical grinding knife tools according to claim 13, it is characterized in that: described outer cutter pipe is that outer cutter pipe front end is fixedly connected with and is provided with outer cutter pipe hinge segment for the hinged position of sheath being installed with bistrique, outer cutter pipe hinge segment front end face radially forms two arc hinge joints relatively, and the breech face that bistrique is installed sheath radially forms two relatively for making the corresponding embedding of two arc hinge joints the arc hinge access slot with its formation single-degree-of-freedom articulated structure; Described outer cutter pipe hinge segment is formed for by the passage of interior cutter pipe between two arc hinge joints, and the thickening of described outer cutter pipe hinge segment is processed radially inside in this passage.
Priority Applications (13)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410041760.7A CN103767759B (en) | 2014-01-28 | 2014-01-28 | Medical grinding cutter |
| EP17179219.5A EP3260061B1 (en) | 2013-11-29 | 2014-09-26 | Lateral grinding drill with continuously variable angle and driving component thereof |
| ES17179219T ES2775187T3 (en) | 2013-11-29 | 2014-09-26 | Continuously variable angle side grinding cutter and drive component |
| JP2016553696A JP6227159B2 (en) | 2013-11-29 | 2014-09-26 | Side grinding drill with continuously variable angle |
| KR1020177012399A KR102050221B1 (en) | 2013-11-29 | 2014-09-26 | Electrodeless variable angle sideways drill grinding head and drive components thereof |
| EP14866116.8A EP3000417B1 (en) | 2013-11-29 | 2014-09-26 | Electrodeless variable angle sideways drill grinding head and drive components thereof |
| US14/894,939 US10178998B2 (en) | 2013-11-29 | 2014-09-26 | Lateral grinding drill with continuously variable angle and driving component thereof |
| KR1020157034145A KR101740976B1 (en) | 2013-11-29 | 2014-09-26 | Electrodeless variable angle sideways drill grinding head and drive components thereof |
| PCT/CN2014/087552 WO2015078229A1 (en) | 2013-11-29 | 2014-09-26 | Electrodeless variable angle sideways drill grinding head and drive components thereof |
| KR1020177012397A KR102050216B1 (en) | 2013-11-29 | 2014-09-26 | Electrodeless variable angle sideways drill grinding head and drive components thereof |
| EP17179220.3A EP3260062B1 (en) | 2013-11-29 | 2014-09-26 | Lateral grinding drill with continuously variable angle and driving component thereof |
| JP2017110065A JP6410876B2 (en) | 2013-11-29 | 2017-06-02 | Side grinding drill including continuously variable angle part and its driving parts |
| JP2017110056A JP6303048B2 (en) | 2013-11-29 | 2017-06-02 | Side grinding drill with continuously variable angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410041760.7A CN103767759B (en) | 2014-01-28 | 2014-01-28 | Medical grinding cutter |
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| Publication Number | Publication Date |
|---|---|
| CN103767759A true CN103767759A (en) | 2014-05-07 |
| CN103767759B CN103767759B (en) | 2015-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410041760.7A Active CN103767759B (en) | 2013-11-29 | 2014-01-28 | Medical grinding cutter |
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| Country | Link |
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| CN (1) | CN103767759B (en) |
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| CN107072673A (en) * | 2014-07-14 | 2017-08-18 | Kb医疗公司 | Anti-skidding operating theater instruments for preparing hole in bone tissue |
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| CN105534573A (en) * | 2015-12-15 | 2016-05-04 | 宁波华科润生物科技有限公司 | Novel medical camber-adjustable tissue removing device |
| CN105534573B (en) * | 2015-12-15 | 2019-03-05 | 宁波华科润生物科技有限公司 | A kind of medical adjustable bending tissue removal instrument |
| CN105796153A (en) * | 2016-04-13 | 2016-07-27 | 成都格瑞思文化传播有限公司 | Novel osteotome |
| CN105726085A (en) * | 2016-04-18 | 2016-07-06 | 珠海维尔康生物科技有限公司 | Driving force transmission component and manufacturing method as well as bendable grinding head and medical grinding tool |
| CN106725747A (en) * | 2016-12-30 | 2017-05-31 | 重庆西山科技股份有限公司 | Medical cutter sweep |
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| US11160562B2 (en) | 2020-01-09 | 2021-11-02 | Arthrex, Inc. | Assemblies for preparation of surgical sites |
| US11717305B2 (en) | 2020-01-09 | 2023-08-08 | Arthrex, Inc. | Assemblies for preparation of surgical sites |
| WO2022148296A1 (en) * | 2021-01-11 | 2022-07-14 | 丰凯医疗器械（上海）有限公司 | Flexible transmission device |
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Address after: The 401121 northern New District of Chongqing Municipality Jupiter technology development center is a district 4 Building Patentee after: CHONGQING XISHAN SCIENCE & TECHNOLOGY CO., LTD. Address before: The 401121 northern New District of Chongqing Municipality Jupiter technology development center is a district 4 Building Patentee before: Chongqing Xishan Technology Co., Ltd. |