CN101700419B - Extension-type puncture needle tool - Google Patents
Extension-type puncture needle tool Download PDFInfo
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- CN101700419B CN101700419B CN2009100984599A CN200910098459A CN101700419B CN 101700419 B CN101700419 B CN 101700419B CN 2009100984599 A CN2009100984599 A CN 2009100984599A CN 200910098459 A CN200910098459 A CN 200910098459A CN 101700419 B CN101700419 B CN 101700419B
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Abstract
The invention relates to an extension-type type puncture needle tool, comprising a puncture needle, an cannula, a suction pipe, a discharging pipe which can be communicated with the suction pipe and a syringe, wherein, the puncture needle is arranged in the cannula, the suction pipe is communicated with the inner cavity of the cannula, the discharging pipe is communicated with a liquid storage bag, the cannula comprises a front soft pipe and a back buffering room, the front soft pipe is communicated with the back buffering room, the front soft pipe is a memory curled soft pipe, a plurality of sucking holes are arranged on the outer surface at the front section of the front soft pipe, a sealing component is arranged at the tail part of the back buffering room, a suction pipe connector is arranged at the side surface at the front end of the back buffering room, the suction pipe is communicated with the inner cavity of the back buffering room by the suction pipe connector, a three-way valve is connected at the back end of the suction pipe, the connector of the syringe is communicated with the other end of the three-way valve, the third interface of the three-way valve is communicated with the discharging pipe, the extension-type type puncture needle tool has the prominent advantages such as safety, smoothness, leak tightness, convenience, multifunction and the like when the pleural effusion is sucked, the extension -type type puncture needle tool also can be used in the pneumatosis part of the human body.
Description
Technical field
The present invention relates to a kind of puncture needle, particularly relate to a kind of safe extension-type puncture needle tool.
Background technology
Often need adopt tapping (gas) art repeatedly for the treatment of breast, abdomen, pericardial effusion, pneumothorax, particularly tuberculosis, tumprigenicity breast, patients with ascites clinically, promptly the draw point with different model directly carries out; The head of draw point is sharp sharp, though hydrops or aerothorax position that doctor inserts breast, abdomen, pericardial cavity with the sense that falls through with draw point, in drawing liquid (gas) process; No matter the having a mind to or advance unintentionally of draw point, or heartbeat, pulmonary respiration; Abdominal viscera moves the needle point that all might make draw point and stabs heart, lung or internal organs; Its consequence threat to life at present, passes through sheathed sleeve pipe on the outer surface of draw point in the prior art; When treating that puncture needle penetrates hydrops (gas) position with sleeve pipe; Can puncture needle be taken out and do not influence normal drawing liquid (gas), number be 93220784.7 " bushing type thoracic cavity paracentesis pericardii needle set " like granted patent, and it just adds on the needle body of former puncture needle has overlapped one and have flexible sleeve pipe.After the puncture, puncture needle is extracted out, sleeve port places hydrops (gas) position, through two-way valve, three-way valve, pipette and syringe hydrops (gas) is extracted out again.It is to replace puncture needle to extract hydrops (gas) with sleeve pipe; Therefore use than draw point safety, but its set flexible sleeve pipe also brings many problems in actual implementation process: 1, the same with former puncture needle of the telescopic liquid sucting port of this pliability has a stomidium, and this stomidium usually can be plugged; Cause the imbibition blocking-up; Must puncture again, not only bring pain, increase operating time and risk simultaneously to the patient; 2, this pliability sleeve pipe is when drawing hydrops (gas); Owing to there is a certain amount of hydrops (gas) to be siphoned away in the short time; But hydrops (gas) all will get into from unique port; Suction and bore that must this port be relatively big, and stomidium is prone to absorption damage internal organs in it, very easily patient are caused discomforts such as uncomfortable in chest, chest pain, stomachache.
Summary of the invention
The present invention provides a kind of extension-type puncture needle tool, has solved in the above-mentioned prior art problem that causes the hole to be plugged owing to telescopic single hole and cause visceral organ injury owing to the suction of single hole greatly.
A kind of extension-type puncture needle tool comprises puncture needle, sleeve pipe, suction pipe, discharge pipe and syringe, and wherein the needle body of puncture needle is arranged in the sleeve pipe; Suction pipe communicates with cannula cavity; Described discharge pipe is communicated with liquid storing bag, and described sleeve pipe comprises preposition flexible pipe and back buffer chamber, the intracavity inter-connection of described preposition flexible pipe and back buffer chamber; Described preposition flexible pipe is the curling flexible pipe of memory, and the leading portion outer surface is provided with a plurality of suctions hole.
Sleeve pipe with common puncture needle outside in the technique scheme of the present invention has carried out scientific improvement; The leading portion outer surface that is mainly reflected in telescopic preposition flexible pipe according to the invention is provided with a plurality of suctions hole, and relative and single hole can guarantee that imbibition is unobstructed in the imbibition process; Inhale the hole because little and many, the pain that the absorption amount that in use can guarantee hydrops produces in the time of alleviating imbibition again; Because preposition flexible pipe is the curling flexible pipe of memory; Can prevent that the ordinary straight flexible pipe from injuring hydrops (gas) chamber organ on every side easily in the port; Wherein the memory flexible pipe that curls may be defined as by what certain flexible material was processed and is the swan-neck to the crimped shape, and the pipe of bending is supported to straight tube by needle body when this pipe is enclosed within puncture needle outside, but after puncture needle is extracted this pipe; This pipe reverts to original in the crimped shape automatically, is the described memory flexible pipe that curls.Preposition flexible pipe institute target graduation mark can clear and definite inserting needle the degree of depth, in order to avoid inserting needle injures internal organs excessively deeply.
As preferably, the quantity in said suction hole is 3～10, and the size in said suction hole should be less than preposition flexible pipe periphery footpath 1/3.If inhaling that hole number too much possibly cause can't imbibition, the very few aperture of possibly causing is stopped up, and the aperture, hole is excessive possibly cause suction to cross ambassador patient to produce pain, too small possibly resulting in blockage if inhale.
As preferably, flexible pipe head hard-pressed bale needle body and needle tip are combined into taper.
As preferably, the afterbody of described back buffer chamber is provided with black box, is provided with black box in the afterbody inner chamber of described back buffer chamber, and described puncture needle is installed in the sleeve pipe through said black box.Thereby this technical scheme is to get into human body in the sleeve pipe in order after puncture needle takes out, to have avoided air, antibacterial to get into.
Preferred as further, described black box by the trapezoidal shape elastic rubber plug that matches with back buffer chamber afterbody inwall, be arranged on barrier sheet on the back buffer chamber, card and the location that is threaded with the back buffer outdoor face of inlay card are covered and are formed mutually with the back buffer chamber interior walls.The sealing modular construction is simple, and is easy to operate.Having a cylinder shape groove to cover the diapire convexity with the location bottom the trapezoidal shape rubber stopper axle core matches fixing; This groove and preposition flexible pipe are on the straight line; Puncture needle can be smoothly through this road gets in the preposition flexible pipe not through the back buffer chamber can offset direction, and the center is covered in the location has the convexity that matches with the rubber stopper circular depressed to cover the back good airproof performance.
As preferably; The side of described rearmounted flexible pipe is provided with suction attachment; Described suction pipe is through the intracavity inter-connection of suction attachment and back buffer chamber, and described suction attachment side also is provided with the administration interface of a band closing cock and the liquid taking port of a band closing cap.Can directly required accessory drugs be injected hydrops (gas) chamber through the administration interface in this technical scheme, can medical use liquid be injected lavation breast, abdominal cavity again, also can get the liquid check through liquid taking port.Described drug delivery port can be realized sealing through any type of clip.
Preferred as further, described suction pipe one end cooperates with suction attachment and is communicated with, and the other end cooperates with an interface of three-way valve and is communicated with, and another interface of the joint of syringe and three-way valve cooperates and is communicated with, and the 3rd interface of three-way valve cooperates with discharge pipe and is communicated with.This technical scheme can realize enclosed imbibition and discharge opeing through a three-way valve, and is promptly simple, convenient again.
Preferred as further, the joint that described three-way valve links to each other with suction pipe is the check valve of dribbling core, and the joint that links to each other with discharge pipe is made up of the page or leaf lobe of two unidirectional conductings.The described three-way valve of this technical scheme can make the more convenient operation of imbibition and discharge opeing, when imbibition, and the closed and check valve conducting of the dribbling heart of two page or leaf lobes; When discharge opeing, two page or leaf lobes are opened and the closed check valve of the core of dribbling, so be independent of each other between imbibition and the discharge opeing; Under the three-way valve inner chamber change pressure effect that the action of the pump drainage of syringe is caused; Realize opening and closing automatically of pump drainage passage, simplified the pump drainage operation, improved the safety of operation.
As preferably, described puncture needle afterbody is provided with needle handle, and the rear end of said needle handle can closely be connected with negative pressure syringe head, and described negative pressure syringe communicates with the inner chamber of needle handle.The effect of negative pressure syringe mainly makes hydrothorax (gas) portion form certain negative pressure in this technical scheme; Hydrops (gas) is flowed out from puncture needle; And can see in the negative pressure syringe whether liquid flows out from needle body; Just can judge whether puncture needle has inserted hydrops (gas) portion, need not to continue to thrust, and further improves security performance.
Preferred as further, described suction pipe and discharge pipe are provided with flow control valve.Can be through the speed or the switching of this flow control valve control imbibition.
Preferred as further, described discharge pipe end is provided with liquid storing bag, and described liquid storing bag is provided with the discharge opeing volume markings, and scale is pressed the actual volume mark, and its lower bottom part is provided with fluid (gas) mouth, and fluid (gas) mouth can seal.
Preferred as further, the present invention also comprises a dilator, and described dilator is taper; Its bottom is provided with sealing rubber; Internal diameter is consistent with needle tubing syringe needle external diameter with anesthesia, and maximum outside diameter is consistent with preposition hose outside diameter, can be placed in the hard short tube of anesthesia with the needle tubing syringe needle.Flexible pipe wrinkles folded in case memory is curled to be used for skin expansion.
Preferred as further; The present invention comprises that is also kept somewhere a fixedly sheath; It has dish-shaped porous base end face toughness Pasting fixed sleeving, and dish-shaped base central authorities have one fixedly to have one 2/3 circular tube seats sizes consistent for circular casing in the middle of the sheath, can fix preposition flexible pipe.
Because also there is following shortcoming in prior art: 1, the internal organs of back in it expand or displacement is prone to by directly shape tube head scuffing when hydrops (gas) is siphoned away.2, do not have scale on the sleeve pipe, can't definitely understand depth of needle so can only estimate, inserting needle is crossed and deeply often is prone to injure internal organs.3, the easy wrinkle of bushing type needle set pliability sleeve pipe in the skin piercing process is folded, particularly the sleeve pipe of larger caliber.4, the pliability sleeve pipe can't be preferably fixing drainage from indwelling, cause repeatedly the patient of drawing liquid (gas) to accept the misery of puncture once more.5, pliability sleeve pipe needle set does not have independent administration, gets liquid check and lavation passage.6, taking out, arrange during pliability sleeve pipe needle set drawing liquid (gas) between action must rotating valve, causes valve and pipette and syringe adapter to come off, and causes accidents such as pneumothorax, germ contamination, must simplify and move.Therefore, a kind of extension-type puncture needle tool of the present invention, it has following outstanding advantage:
The unobstructed property of 1 safety: in the process of drawing hydrops (gas) owing to use that the pliability memory is curled and its surface has the preposition flexible pipe that the scale leading portion has a plurality of suctions hole, the obstruction of dark, the liquid sucting port of having avoided puncture and damage hydrops (gas) chamber internal organs and the pain that has alleviated patient on every side.
2 sealings: after the puncture needle band preposition flexible pipe and thrust hydrops (gas) position, puncture needle was just taken out from sleeve pipe fully, and the black box of its sleeve pipe back plays and prevents that air, antibacterial from getting into the effect in the sleeve pipe.
3 convenience: can realize enclosed imbibition (gas) and discharge opeing (gas) through a three-way valve, one man operation and need not rotating valve, promptly simple, convenient again.
4 multifunctionalities: can be except that drawing liquid (gas) easily through the individual passage drug treatment, get the liquid check, breast, peritoneal lavage, sleeve pipe can be kept somewhere preferably and is fixed in misery and the risk that breast, stomach wall CD are avoided repeated localised puncture.
5 are prone to industrialization: simple in structure, easy for installation, required cost is low, and function is prone to promote entirely.
Description of drawings
A kind of extension-type puncture needle tool syndeton of Fig. 1 the present invention sketch map;
Fig. 2 is the assembling sketch map of sleeve pipe of the present invention, puncture needle, black box;
Fig. 3 is the syndeton sketch map between three-way valve of the present invention and syringe, suction pipe, the discharging tube;
Fig. 4 keeps somewhere the fixedly structural representation of sheath for the present invention;
Among the figure: 1 dilator, 2 preposition flexible pipes, 2-1 inhales the hole, graduation mark 2-2,3 puncture needles, 3-1 needle handle, 3-2 negative pressure syringe, back buffer chambers 4; The 4-1 barrier sheet, 4-2 locatees lid, 4-3 elastic rubber plug, 5 suction attachments, 5-1 clip, 5-2 administration interface, 5-3 liquid taking port; 6 suction pipes, 7 flow control valvees, 8 three-way valve, 8-1 ball core, 8-2 page or leaf lobe, 9 discharge pipes, 10 syringes; 11 liquid storing bags, 12 keep somewhere fixedly sheath, the circular tube seat of 12-1,12-2 butterfly porous base, 13 valve ports, 14 outer edge clippings, 15 interior edge clippings; 16 edge clippings, 17 second interfaces, 18 the 3rd interfaces, 19 first interfaces, 20 discharge pipe interfaces, 21 retaining edge, 22 valve pockets.
The specific embodiment
Present embodiment only is to explanation of the present invention, and those of ordinary skill in the art can make present embodiment according to the spirit of this description does not have creationary modification, but these are all in protection scope of the present invention.
Like Fig. 1, Fig. 2, shown in Figure 3, a kind of extension-type puncture needle tool is by puncture needle 3, needle handle 3-1, syringe 3-2, sleeve pipe, suction pipe 6, three-way valve 8, discharge pipe 9, syringe 10, liquid storing bag 11 with keep somewhere fixedly sheath 12 and form.Puncture needle 3 is identical with traditional puncture needle; The syringe needle of puncture needle 3 is that curve slope is for preventing to stab interior tissue; Sleeve pipe comprises the preposition flexible pipe 2 and back buffer chamber 4 that inserts human body; Preposition flexible pipe 2 is to process and be connected on 4 front tab of back buffer chamber with having certain flexible material, and preposition flexible pipe 2 is the memory flexible pipe that curls, and preposition flexible pipe 2 full segment marks have graduation mark 2-2; The degree of depth that can clear and definite inserting needle during puncture; The leading portion outer surface of preposition flexible pipe 2 is provided with a plurality of suction hole 2-1, size and the quantity of inhaling hole 2-1 unobstructed and comfortable being as the criterion during with imbibition, and the back segment of the preposition flexible pipe 2 that is connected with back buffer chamber 4 is common flexible pipe; Preposition flexible pipe 2 usefulness have certain flexible material and process; The end of back buffer chamber 4 has been provided with the black box of sealing process, black box by the trapezoidal shape elastic rubber plug 4-3 that matches with back buffer chamber 4 inner wall at end, be arranged on the barrier sheet 4-1 on the back buffer chamber 4 and the location that is threaded with back buffer chamber 4 outer surfaces lid 4-2 forms, wherein locating the effect of covering 4-2 is to be used for fixing the position of elastic rubber plug 4-3 in back buffer chamber 4.When the needle body of puncture needle 3 successively gets into back buffer chamber 4 inner chambers and gets into preposition flexible pipe 2 and exceed port one～3 millimeter of preposition flexible pipe 2 up to needle point through being arranged on location lid 4-2, elastic rubber plug 4-3 on the back buffer chamber 4; Needle handle 3-1 stays outside the back buffer chamber 4 just; And cooperating between needle body and the preposition flexible pipe 2 is tight, being advisable through needle body.Wherein the rear end of needle handle 3-1 is provided with negative pressure syringe 3-2; The head of negative pressure syringe 3-2 communicates with the inner chamber of needle handle 3-1 through closely being connected the back with needle handle 3-1 end, can make hydrops (gas) portion form certain negative pressure through pull negative pressure syringe, and hydrops is flowed out from puncture needle; And can see in the negative pressure syringe whether liquid (gas) flows out from needle body; Just can judge whether puncture needle has inserted hydrops (gas) portion, need not to continue to thrust, and further improves security performance.
Front end side in back buffer chamber 4 is provided with suction attachment 5; Suction pipe 6 is through the intracavity inter-connection of suction attachment 5 with back buffer chamber 4; Back buffer chamber 4 inner chambers are communicated with preposition flexible pipe 2; Be that hydrops (gas) can get into suction pipe 6 along the inner chamber of preposition flexible pipe 2 through back buffer chamber 4; The side of suction attachment 5 also is provided with the administration interface 5-2 of a band closing cock and the liquid taking port 5-3 of a band closing cap, can directly required accessory drugs be joined intracavity through administration interface 5-2, can get the liquid check through liquid taking port 5-3.After certain imbibition is accomplished; Can suction pipe 6 be disassembled from suction attachment 5; Block suction attachment 5 to prevent the air admission human body with clip 5-1 or closing cock before the dismounting, can pipe suction attachment 5 directly be connected discharge pipe 9 during drainage from indwelling, liquid can be introduced in the liquid storing bag 11.
One end of suction pipe 6 cooperates with suction attachment 5 and is communicated with, and the other end cooperates with an interface of three-way valve 8 and is communicated with, and it is flexible that suction pipe 6 is; The joint of syringe 10 cooperates with three-way valve 8 another interfaces and is communicated with; The 3rd interface of three-way valve 8 cooperates with discharge pipe 9 and is communicated with, and on suction pipe 6 and discharge pipe 9, is provided with flow control valve 7, is provided with liquid storing bag 11 at discharge pipe 9 ends; On liquid storing bag 11, be carved with discharge opeing (gas) volume markings, lower bottom part is provided with fluid (gas) mouth.Wherein, The joint that three-way valve 8 links to each other with suction pipe 6 is made up of page lobe of two unidirectional conductings for the check valve of dribbling core, the joint that links to each other with discharge pipe 9, and can make between imbibition (gas) and discharge opeing (gas) through three-way valve need not the rotating valve more convenient operation and can obviously improve drawing liquid efficient; When imbibition; Closed and the check valve conducting of the dribbling heart of two page or leaf lobes, when discharge opeing, two page or leaf lobes are opened and the closed check valve of the core of dribbling.
Before the clinical use; A whole set of puncture needle needs sterilization; Earlier with the thin head of cone expander upwards the rubber blind end be inserted in anesthesia downwards and use syringe needle, the row local anaesthesia at the ultrasonic-localised puncture place, and push ahead the skin expansion puncturing hole with the cone expander of being inserted in syringe needle.During connection; To remember the preposition flexible pipe 2 that curls earlier is socketed on the front tab of back buffer chamber 4; Again the gum elastic circle 4-3 of trapezoidal shape is packed in the back buffer chamber 4 and use the location lid 4-2 that is connected with back buffer chamber 4 end thread that gum elastic circle 4-3 is positioned then to compress and make among the gum elastic circle 4-3 cylinder shape groove to embed to locate the diapire high spot that covers 4-2 until meeting the barrier sheet 4-1 that is arranged on the back buffer chamber 4; Described convexity is a protruding circular ring; Head with negative pressure syringe 3-2 closely links to each other with needle handle 3-1 end subsequently; The needle body of puncture needle 3 successively cover inner chamber that 4-2, gum elastic circle 4-3 get into back buffer chamber 4 through the location and gets into preposition flexible pipe 2 and exceed port one～3 millimeter of preposition flexible pipe 2 up to needle point, and needle handle 3-1 stays outside the back buffer chamber 4 just at this moment.Connect suction pipe 6, flow control valve 7, three-way valve 8, discharge pipe 9, syringe 10 and liquid storing bag 11 again, suction pipe 6 requires the length should be to draw back suitable can being advisable by operating range between operator and the drawing liquid personnel.Then, puncture needle 3 is thrust hydrops (gas) through the puncturing hole of expanding in the lump together with preposition flexible pipe 2 locate, can flow out smoothly for making hydrops (gas); Pull negative pressure syringe 3-2, can stop puncture needle 3 and continue inserting needle when seeing the effusive hydrops of negative pressure syringe 3-2 (gas) so that hydrops (gas) position produces certain negative pressure; Immediately puncture needle 3 is withdrawed from; Promote back buffer chamber 4 simultaneously and slide forward preposition flexible pipe 2 is stayed hydrops (gas) position, because preposition flexible pipe 2 is for the memory flexible pipe that curls, after puncture needle 3 takes out; Preposition flexible pipe 2 has recovered previous curling shape again naturally in fluid collection chamber, avoided stabbing hydrops (gas) peripheral organs.During pull syringe 10, the automatic adhesive of two page or leaf lobe 8-2 between three-way valve 8 and the discharge pipe 9 is also regulated flow control valve 7, makes hydrops (gas) get into syringe 10 along preposition flexible pipe 2 and back buffer chamber 4 through suction pipe 6 from inhaling hole 2-1.After syringe 10 is filled; During push injection device 10; The closed check valve of dribbling core 8-1 between three-way valve 8 and the suction pipe 6, two page or leaf lobe 8-2 between three-way valve 8 and the discharge pipe 9 open, and liquid will get into apocenosis bag 11 through discharge pipe 9; Need to continue to extract hydrops, then must repeat the aforesaid operations program.Referring to Fig. 4; Can earlier clip 5-1 folder be closed suction pipe 5 when needing drainage from indwelling; Sheath 12 is fixed on preposition flexible pipe 2 on the human body through keeping somewhere fixedly; Specifically be through preposition flexible pipe 2 afterbodys being fixed among the dish-shaped base central, circular tube seat 12-1 that keeps somewhere fixing sheath 12, dish-shaped porous base 12-2 is pasted on breast, abdominal part, suction attachment 5 directly connects discharge pipe 9; Liquid can be introduced in the liquid storing bag 11, if need once more the drawing liquid can be by above-mentioned connection three-way valve 8, discharge pipe 9, syringe 10 and liquid storing bag 11 operations.
As shown in Figure 3, three-way valve comprises first interface 19, second interface 17, the 3rd interface 18; The 3rd interface 18 is connected with standard syringe; The outer peripheral face of first interface 19 is connected with the inner thread of discharge pipe interface 20; The inside of second interface 17 is provided with valve pocket 22; Edge clipping 15 and retaining edge 21 in the inner peripheral surface of valve pocket 22 is provided with; The outer peripheral face of valve port 13 is provided with the outer edge clipping 14 that matches with interior edge clipping 15; When valve port 13 and valve pocket 22 are connected through edge clipping said in 15, outer edge clipping 14, and by keeping off the fixedly axial location of valve port of edge 21; Valve pocket 22 inner peripheral surfaces are provided with three and come closer and be provided with protruding rib 23 drawing close end, and after valve port 13 was connected with valve pocket 22, ball 8-1 was between valve port 13 and the rib 23; The outer peripheral face of second interface 17 is provided with edge clipping 16, the (not shown) that is connected of the end through edge clipping 16 second interfaces 17 and suction pipe 6.
Claims (9)
1. extension-type puncture needle tool; Comprise puncture needle (3), sleeve pipe, suction pipe (6), the discharge pipe (9) that can be connected and syringe (10) with suction pipe (6); Wherein puncture needle (3) is arranged in the sleeve pipe, and suction pipe (6) communicates with telescopic inner chamber, and described discharge pipe (9) is communicated with liquid storing bag (11); It is characterized in that: described sleeve pipe comprises preposition flexible pipe (2) and back buffer chamber (4); Described preposition flexible pipe (2) and back buffer chamber (4) are connected, and described preposition flexible pipe (2) is the curling flexible pipe of memory, and the leading portion outer surface of preposition flexible pipe (2) is provided with a plurality of suctions hole (2-1); Be provided with black box in the afterbody inner chamber of described back buffer chamber (4) in order to sealing puncture needle (3).
2. a kind of extension-type puncture needle tool according to claim 1 is characterized in that: the quantity in said suction hole (2-1) is 3～10, and the size in said suction hole (2-1) is identical with the aperture size of puncture needle (3).
3. a kind of extension-type puncture needle tool according to claim 1; It is characterized in that: described black box by the trapezoidal shape elastic rubber plug (4-3) that matches with back buffer chamber (4) afterbody inwall, be arranged on the barrier sheet (4-1) on the back buffer chamber (4) and the location that is threaded with back buffer chamber (4) outer surface lid (4-2) is formed, described location is covered on (4-2) and is offered through hole.
4. according to claim 1 or 2 or 3 described a kind of extension-type puncture needle tools, it is characterized in that: the side of described back buffer chamber (4) is provided with suction attachment (5), and the front end of described suction pipe (6) is connected with back buffer chamber (4) through suction attachment (5).
5. a kind of extension-type puncture needle tool according to claim 4 is characterized in that: described suction attachment (5) side is provided with an administration interface (5-2).
6. a kind of extension-type puncture needle tool according to claim 4; It is characterized in that: described suction pipe (6) rear end is connected to three-way valve (8); Suction pipe (6) front end is communicated with suction attachment (5); Syringe (10) is communicated with another interface of said three-way valve (8), and the 3rd interface of three-way valve (8) is communicated with discharge pipe (9).
7. a kind of extension-type puncture needle tool according to claim 6; It is characterized in that: the joint that described three-way valve (8) links to each other with suction pipe (6) is the check valve of dribbling core (8-1), and the joint that three-way valve (8) links to each other with discharge pipe (9) is made up of the page or leaf lobe (8-2) of two unidirectional conductings.
8. according to claim 1 or 2 or 3 described a kind of extension-type puncture needle tools; It is characterized in that: described puncture needle (3) afterbody is provided with needle handle (3-1); The rear end of said needle handle (3-1) is provided with negative pressure syringe (3-2), and the syringe needle of described negative pressure syringe (3-2) and needle handle (3-1) end match.
9. according to claim 1 or 2 or 3 described a kind of extension-type puncture needle tools, it is characterized in that: described suction pipe (6) and discharge pipe (9) are provided with flow control valve (7).
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| CN2009100984599A CN101700419B (en) | 2009-05-09 | 2009-05-09 | Extension-type puncture needle tool |
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| CN2009100984599A CN101700419B (en) | 2009-05-09 | 2009-05-09 | Extension-type puncture needle tool |
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| CN101700419B true CN101700419B (en) | 2012-05-23 |
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Families Citing this family (5)
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|---|---|---|---|---|
| CN101912291B (en) * | 2010-07-02 | 2011-12-07 | 魏云海 | Puncture cannulation instrument |
| CN103637854A (en) * | 2013-12-20 | 2014-03-19 | 魏云海 | Rabbit portal vein thrombosis model |
| CN108404289A (en) * | 2017-12-28 | 2018-08-17 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | PICC plugging thrombolysis threeway auxiliary devices |
| CN111449730B (en) * | 2020-04-03 | 2021-03-19 | 吉林大学 | Safe puncture channel expanding device for intravascular interventional therapy |
| CN114159638B (en) * | 2021-12-16 | 2023-10-24 | 武汉大学中南医院 | Automatic device for solving unsmooth blood purification and blood drawing |
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| US4182326A (en) * | 1977-08-26 | 1980-01-08 | Ims Limited | Laryngotracheal syringe |
| US4329985A (en) * | 1980-01-18 | 1982-05-18 | Shiley, Inc. | Vein distention system |
| US4402684A (en) * | 1981-09-16 | 1983-09-06 | The Kendall Company | Cannula with soft tip |
| CN2201116Y (en) * | 1993-08-03 | 1995-06-21 | 岳全廷 | Sleeving thoracic cavity pericardium puncture needle ware |
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| CN101700419A (en) | 2010-05-05 |
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