CN101849866B - Guide device for embedding zebra guide wires for ureteral stent below laparoscope - Google Patents
Guide device for embedding zebra guide wires for ureteral stent below laparoscope Download PDFInfo
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- CN101849866B CN101849866B CN2010101795351A CN201010179535A CN101849866B CN 101849866 B CN101849866 B CN 101849866B CN 2010101795351 A CN2010101795351 A CN 2010101795351A CN 201010179535 A CN201010179535 A CN 201010179535A CN 101849866 B CN101849866 B CN 101849866B
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Abstract
The invention relates to a guide device for embedding zebra guide wires for a ureteral stent below a laparoscope, which is provided with a sheath, a positioning and fixing tube, a guide tube and a guide tube accessory, wherein the positioning and fixing tube is a hard positioning and fixing tube, penetrates through the sheath and can move along the inside of the tube cavity of the sheath; a sheath fixer is arranged on the outer wall of the sheath, and the sheath is closely connected with the positioning and fixing tube through the sheath fixer; the guide tube comprises a guide tube body, a guide tube head communicated with one end of the guide tube body and a guide tube tail communicated with the other end of the guide tube body, and the guide tube is a flexible guide tube; and the guide tube and the guide tube accessory penetrate through the positioning and fixing tube and are advanced aiming at the notch direction of a ureter, and then, the guide tube tail is closely connected with the tail of the positioning and fixing tube. Compared with the prior art, the invention can aid operators to embed the zebra guide wires for the ureteral stent to shorten the operation time and improve the safety, and has the advantages of simple structure, low manufacturing cost and convenient popularization and application.
Description
Technical field
The present invention relates to a kind of surgical operation and use the medical assistance apparatus, particularly relate to and be used for a kind of peritoneoscope guide device for embedding zebra guide wires for ureteral stent below that kidney under the peritoneoscope, renal pelvis and operation on ureter are placed patient's use of ureter bracket.
Background technology
At present, Urology Surgery circle is in implementing kidney, renal pelvis and operation on ureter, and conventional need are placed a ureter bracket (be commonly called as into: two " J " pipe or two pigtail pipes) in patient's ureter, and about after surgery 1-2 pulled out from urethra through cystoscope in individual month again.This ureter bracket can play the effect of support and drain, thereby guarantees that urine drainage is unobstructed, and reduces the incidence rate of situation such as urine extravasation, the infection of kidney week and urethral stricture.
Place ureter bracket and adopt traditional open surgery, though simple to operate, quick, bigger to patient's wound, and also post-operative recovery is slower, is prone to cause wound infection simultaneously.
Along with the develop rapidly of industrial technologies such as photoelectricity, image, manufacturing, brought making rapid progress of medical science technical application, surgical operation is also just developing towards the direction of Wicresoftization, noinvasiveization, makes many traditional open surgery replaced by intracavity operation.Laparoscopic surgery has been widely used in clinical as intracavity operation wherein a kind of.At present, the operation of the major part of Urology Surgery all can be accomplished under peritoneoscope.But it is so light that peritoneoscope held ureter bracket is far from open surgery placement ureter bracket, but time-consuming, as a to require great effort thing, this usually makes operative doctor be sorely distressed, even laparoscopic surgery operation " master-hand " is no exception.Thereby make peritoneoscope held ureter bracket become a big technical barrier.
In the prior art; The conventional method of peritoneoscope held ureter bracket is: under the observation of monitor; Insert a zebra seal wire to surgical field of view through an operating walk way (Trocar) or operating walk way (Trocar) with the gap of tissue, stretch into tissue forceps clamp zebra seal wire head in the ureter otch inserts ureteral lumen through another operating walk way (Trocar) again, till guaranteeing that zebra seal wire head end arrives intravesical; Then along the zebra seal wire; And at the propelling movement held ureter bracket of boost tube in ureter, extract the zebra seal wire again out, keep somewhere appropriate location with the tissue forceps adjustment at last in intra-ureteral ureter bracket.But the problem below the aforesaid operations method exists:
1, because zebra seal wire when getting into surgical field of view through operating walk way (Trocar), the seal of working place is destroyed and causes gas leakage, makes unclear, the operating difficulties of surgical field of view; In addition, also make CO
2Gas leak has increased the weight of the environmental pollution of operating room, harm medical worker and patient's health;
2, owing to the zebra seal wire is very soft, particularly its head end relies on the tissue forceps clamp to put into very difficulty of ureter tube intracavity, tends to spend 30-60 minute, even failure, and is not only time-consuming but also require great effort, and usually makes operative doctor very tired, worried;
3, because the zebra seal wire usually runs from the ureter tube chamber easily, get into outside the ureter tube chamber, cause malpractice easily even cause medical tangle, operation safety is poor;
4, because the zebra seal wire is very expensive, the price of every zebra seal wire is generally more than 1000 yuan, and very easy damage when tissue forceps is operated its clamp is prone to cause certain medical resource waste and increase the weight of patient's financial burden.
In sum, do not relate to the medical assistance apparatus because traditional ureter bracket is placed in the operational approach, thus exist time-consuming, effort, poor stability, less economical, be prone to weak point such as pollution, this has become the bottleneck that further develops of this type operation.
Therefore; To weak point of the prior art; Needing badly provides a kind of can assisting to insert ureter bracket and use the zebra seal wire; Make that operating time shortens, safety improves, and simple in structure, low cost of manufacture, peritoneoscope guide device for embedding zebra guide wires for ureteral stent below easy to utilize.
Summary of the invention
The objective of the invention is to avoid weak point of the prior art and provide a kind of can assisting to insert ureter bracket and use the zebra seal wire; Make that operating time shortens, safety improves; And simple in structure, low cost of manufacture, peritoneoscope guide device for embedding zebra guide wires for ureteral stent below easy to utilize.
The object of the invention is realized through following technical measures:
A kind of peritoneoscope guide device for embedding zebra guide wires for ureteral stent below is provided, wherein, is provided with epitheca, positioning and fixing tube, guiding tube and guiding tube adnexa;
Said positioning and fixing tube is the positioning and fixing tube of hard, and said positioning and fixing tube is arranged in said epitheca, and can be along moving in the tube chamber of said epitheca;
The outer wall of said epitheca is provided with the epitheca holder, and said epitheca closely connects through the said epitheca holder place, required location corresponding with said positioning and fixing tube;
The guiding tube head that said guiding tube includes the guiding tube body, communicates with an end of said guiding tube body, and the guiding tube afterbody that communicates with the other end of said guiding tube body, said guiding tube is softish guiding tube;
Said guiding tube adnexa is the guiding tube adnexa with shape memory characteristic; Under naturalness; The head of said guiding tube adnexa has the bowing shape, and when said guiding tube adnexa was inserted in said guiding tube, said guiding tube head was the bowing shape;
Said guiding tube and said guiding tube adnexa are arranged in said positioning and fixing tube, and aim at the propelling of ureter cut-out direction, then said guiding tube afterbody closely are connected with the afterbody of said positioning and fixing tube.
Preferred embodiment be that above-mentioned guiding tube adnexa is the guiding tube adnexa with elasticity core arrangement of shape memory characteristic as of the present invention.
Above, above-mentioned guiding tube adnexa is the guiding tube adnexa with Nitinol core arrangement of shape memory characteristic.
As of the present invention another preferred embodiment do, the intersection between above-mentioned guiding tube head and the said guiding tube body is provided with the annulet line, and said annulet line is roentgenopaque annulet line.
Be that above-mentioned guiding tube is the guiding tube with transparent tube wall as the embodiment that is more preferably of the present invention.
As of the present invention another preferred embodiment do, said epitheca holder one segment distance of the outer span of above-mentioned epitheca is provided with locating part, and said locating part is arranged in the arrival end of operating walk way (Trocar) in use.
As of the present invention another preferred embodiment is that the tail end of above-mentioned guiding tube adnexa is provided with the grip part.
Above, the diameter of above-mentioned guiding tube adnexa is 1mm～1.4mm, and the length of said guiding tube adnexa is 400mm～450mm, and the length of the head of said guiding tube adnexa is 14mm～17mm;
The internal diameter of said guiding tube body is 1.45mm～1.5mm, and the external diameter of said guiding tube body is 1.95mm～2mm, and the length of said guiding tube is 350mm～400mm, and the length of said guiding tube head is 14mm～17mm;
The internal diameter of said positioning and fixing tube is 2.45mm～2.5mm, and the external diameter of said positioning and fixing tube is 2.95mm～3mm, and the length of said positioning and fixing tube is 320mm～370mm;
The internal diameter of said epitheca is 3.45mm～3.5mm, and the external diameter of said epitheca is 4.45mm～4.5mm, and the length of said epitheca is 200mm～250mm.
Further, the diameter of the above guiding tube adnexa is 1.2mm, and the length of said guiding tube adnexa is 425mm, and the length of the head of said guiding tube adnexa is 15mm;
The internal diameter of said guiding tube body is 1.5mm, and the external diameter of said guiding tube body is 2mm, and the length of said guiding tube is 375mm, and the length of said guiding tube head is 15mm;
The internal diameter of said positioning and fixing tube is 2.5mm, and the external diameter of said positioning and fixing tube is 3mm, and the length of said positioning and fixing tube is 350mm;
The internal diameter of said epitheca is 3.5mm, and the external diameter of said epitheca is 4.5mm, and the length of said epitheca is 225mm.
Preferred embodiment be when the said ureter otch 5mm of said positioning and fixing tube distance～10mm, said positioning and fixing tube closely to be connected with said epitheca as of the present invention another through said epitheca holder.
Peritoneoscope guide device for embedding zebra guide wires for ureteral stent below of the present invention is provided with epitheca, positioning and fixing tube, guiding tube and guiding tube adnexa; Positioning and fixing tube is the positioning and fixing tube of hard, and positioning and fixing tube is arranged in epitheca, and can be along moving in the tube chamber of epitheca; The outer wall of epitheca is provided with the epitheca holder, and epitheca closely connects through the epitheca holder place, required location corresponding with positioning and fixing tube; The guiding tube head that guiding tube includes the guiding tube body, communicates with an end of guiding tube body, and the guiding tube afterbody that communicates with the other end of guiding tube body, guiding tube is softish guiding tube; The guiding tube adnexa is the guiding tube adnexa with shape memory characteristic, and under naturalness, the head of guiding tube adnexa has the bowing shape, and when the guiding tube adnexa was inserted in guiding tube, the guiding tube head was the bowing shape; Guiding tube and guiding tube adnexa are arranged in positioning and fixing tube, and the head of guiding tube head and guiding tube adnexa stretches into towards the ureter cut-out direction in use, and the guiding tube afterbody closely is connected with the afterbody of positioning and fixing tube.
The present invention compared with prior art can assist and insert ureter bracket and use the zebra seal wire, makes the difficulty of placing the zebra seal wire reduce, and has saved operating time greatly, has shortened anesthesia duration, has alleviated the fatigue of surgical doctor; And safety is improved, thereby avoided the unusual risk of ureter bracket implantation site; Simple in structure, low cost of manufacture is easy to utilize simultaneously.In addition, also reduced and inserted CO in the ureter bracket process
2Leak, thereby reduced the operation medical personnel to CO
2Suction volume, avoided unnecessary health hazard.
Description of drawings
Utilize accompanying drawing that the present invention is described further, but the embodiment in the accompanying drawing does not constitute any restriction of the present invention.
Fig. 1 is the structural representation of a kind of peritoneoscope guide device for embedding zebra guide wires for ureteral stent below of the present invention;
Fig. 2 is a kind of peritoneoscope guide device for embedding zebra guide wires for ureteral stent below of the present invention " A---A " sectional structure sketch map;
Fig. 3 is the structural representation of the positioning and fixing tube of a kind of peritoneoscope guide device for embedding zebra guide wires for ureteral stent below of the present invention;
Fig. 4 is the structural representation of the guiding tube of a kind of peritoneoscope guide device for embedding zebra guide wires for ureteral stent below of the present invention;
Fig. 5 is the structural representation of the guiding tube adnexa of a kind of peritoneoscope guide device for embedding zebra guide wires for ureteral stent below of the present invention;
Fig. 6 is arranged in the structural representation of guiding tube for the guiding tube adnexa of a kind of peritoneoscope guide device for embedding zebra guide wires for ureteral stent below of the present invention;
Fig. 7 is the structural representation of the epitheca of a kind of peritoneoscope guide device for embedding zebra guide wires for ureteral stent below of the present invention.
Comprise among Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7:
1---guiding tube adnexa, 11---grip part, the 12---head of guiding tube adnexa, 2---guiding tube, 21---guiding tube body, 22---guiding tube head, 23---annulet line, 25---guiding tube afterbody, 3---positioning and fixing tube, the 31---afterbody of positioning and fixing tube, 4---epitheca, 41---sealing and fixing plug, 42---locating part, 43---epitheca holder.
The specific embodiment
In conjunction with following examples the present invention is further described.
Embodiment 1
One of specific embodiment of peritoneoscope guide device for embedding zebra guide wires for ureteral stent below of the present invention, as depicted in figs. 1 and 2, be provided with epitheca 4, positioning and fixing tube 3, guiding tube 2 and guiding tube adnexa 1.Wherein, positioning and fixing tube 3 is the positioning and fixing tube 3 of hard, and positioning and fixing tube 3 is arranged in epitheca 4, and can be along vertically moving in the tube chamber of epitheca 4.Thus, can adjust positioning and fixing tube 3 apart from the distance between the ureter otch according to practical situation.
Referring to shown in Figure 7, epitheca 4 is provided with epitheca holder 43, and epitheca 4 closely connects with positioning and fixing tube 3 corresponding places, required location through epitheca holder 43.This is connected to closely and is fixedly connected.In inserting the ureter bracket process; Surgical doctor needs according to practical situation; The head end of adjustment positioning and fixing tube 3 and the distance of ureter otch; Generally speaking, when the distance of the head end of positioning and fixing tube 3 and ureter otch is 5mm～10mm, utilize epitheca holder 43 that epitheca 4 closely is connected with positioning and fixing tube 3.Another effect of epitheca holder 43 is can be used for epitheca 4 is arranged in use the arrival end of operating walk way (Trocar), thereby limit the length travel of epitheca 4.
In addition; Epitheca holder 43 can be fixation clamp; Or sealing and fixing plug 41 is set at the link position of epitheca 4 and positioning and fixing tube 3; Through the gap between epitheca 4 inwalls and positioning and fixing tube 3 outer walls is filled up, play the length travel that limits positioning and fixing tube 3, thus epitheca 4 is fixing with positioning and fixing tube 3.
Referring to shown in Figure 4, the guiding tube head 22 that guiding tube 2 includes guiding tube body 21, communicates with an end of guiding tube body 21, and the guiding tube afterbody 25 that communicates with the other end of guiding tube body 21, guiding tube 2 is softish guiding tube 2.
Referring to shown in Figure 6, guiding tube adnexa 1 of the present invention is for having the guiding tube adnexa 1 of shape memory characteristic, under naturalness; The head 12 of guiding tube adnexa has the bowing shape, when guiding tube adnexa 1 is inserted in guiding tube 2, because of guiding tube adnexa 1 has elasticity preferably; Can resist certain external force; After in guiding tube adnexa 1 is inserted in guiding tube 2, because guiding tube 2 quality are soft, guiding tube head 22 is the bowing shape thereupon.Above-mentioned bowing shape can be circular-arc curved shape.
Referring to shown in Figure 1; When guiding tube 2 is arranged in positioning and fixing tube 3 together with guiding tube adnexa 1; Under the external force effect of the outer wall of positioning and fixing tube 3, the head 12 of guiding tube head 22 and guiding tube adnexa receives the big external force of outer wall of the positioning and fixing tube 3 of hard, can temporarily become directly linearly state by the arc-shaped bend shape; Guarantee that guiding tube adnexa 1 and guiding tube 2 pass through the straight pipeline of positioning and fixing tube 3 together smoothly; But after guiding tube adnexa 1 and guiding tube 2 passed positioning and fixing tube 3, the external force that the outer wall of positioning and fixing tube 3 acts on guiding tube 2 and the guiding tube adnexa 1 disappeared, and the head of guiding tube 2 and guiding tube adnexa 1 recovers the arc-shaped bend shape; And aim at the ureter cut-out direction and advance, then guiding tube afterbody 25 closely is fixedly connected with the afterbody 31 of positioning and fixing tube.
This head with arc-shaped bend shape can guarantee to get into smoothly the ureter incision site; Make guiding tube head 22 to get into the ureter tube chamber through the ureter otch along the arc bend curvature; Make thus after extracting guiding tube adnexa 1 out; The zebra seal wire then gets into the ureter tube chamber through the tube chamber of guiding tube 2 smoothly, thereby gets into bladder at last.
In order to ensure the seal in the operation, need guiding tube afterbody 25 closely is fixedly connected with the afterbody 31 of positioning and fixing tube.The tight mode that is fixedly connected between the afterbody 31 of this guiding tube afterbody 25 and positioning and fixing tube is detachable fixed connection mode.The mode that should closely be fixedly connected can spin for screw thread, can also be nested type connection or direct clamping etc.
Referring to shown in Figure 6, guiding tube 2 of the present invention has transparent tube wall.So that the observation in when operation.Epitheca 4, positioning and fixing tube 3 can repeated disinfection, and repeatedly use, and guiding tube 2 and guiding tube adnexa 1 thereof make appliance for disposable sterilization.Need before using to be placed in the aseptic bag epitheca 4, positioning and fixing tube 3 sterilizations subsequent use.Can also be that epitheca 4, positioning and fixing tube 3, guiding tube 2 and guiding tube adnexa 1 are disposable sterilization and make appliance, be combined as a product between them, independent packaging be directly used.
Referring to shown in Figure 4, the intersection between guiding tube head 22 and the guiding tube body 21 is provided with annulet line 23, and this annulet line 23 is roentgenopaque annulet line 23.This annulet line 23 can be used roentgenopaque metal powder labelling, under the perspective of X ray, is convenient to surgical doctor and accurately grasps the position that guiding tube 2 is sent into down from peritoneoscope.
The guiding tube adnexa 1 that can remember when shape is arranged in the inside of guiding tube 2; And insert in the positioning and fixing tube 3 with guiding tube 2; When passing positioning and fixing tube 3; The head natural torsion of the guiding tube adnexa 1 that guiding tube head 22 will can be remembered with shape becomes circular-arc, so the wall thickness of outer bow portion that guiding tube head 22 is set greater than the wall thickness of bow portion in it, and evenly seamlessly transits.Be convenient to the natural torsion of guiding tube 2, and when guiding tube adnexa 1 is extracted out, can keep circular-arc curved shape preferably with guiding tube adnexa 1, not yielding.Concrete, the wall thickness of the outer bow portion of guiding tube head 22 is 0.35mm, and the wall thickness of the interior bow portion of guiding tube head 22 is 0.15mm.
Referring to shown in Figure 7, the outer wall of epitheca 4 is positioned at apart from epitheca holder 43 1 segment distances can be provided with locating part 42, and this locating part 42 is arranged in the arrival end of operating walk way.This locating part 42 can be for annular shape snap ring or along the gag lever post of diametric(al) outer end.Locating part 42 is arranged at the below of epitheca holder 43, can limit the length travel of epitheca 4 through locating part 42, makes epitheca 4 firmly be fixed in the porch of operating walk way.
Referring to shown in Figure 5, the tail end of above-mentioned guiding tube adnexa 1 is provided with grip part 11.Through grip part 11 is set, is convenient to guiding tube adnexa 1 and is interspersed in the guiding tube 2, and be convenient to extract out outside the guiding tube 2.
Specifications such as the diameter of each parts of peritoneoscope guide device for embedding zebra guide wires for ureteral stent below of the present invention, length are to decide according to the needs of practical application; Can select following dimensions for use: the diameter of guiding tube adnexa 1 is 1mm～1.4mm; The length of guiding tube adnexa 1 is 400mm～450mm, and the length of the head 12 of guiding tube adnexa is 14mm～17mm; The internal diameter of guiding tube body 21 is 1.45mm～1.5mm, and the external diameter of guiding tube body 21 is 1.95mm～2mm, and the length of guiding tube 2 is 350mm～400mm, and the length of guiding tube head 22 is 14mm～17mm; The internal diameter of positioning and fixing tube 3 is 2.45mm～2.5mm, and the external diameter of positioning and fixing tube 3 is 2.95mm～3mm, and the length of positioning and fixing tube 3 is 320mm～370mm; The internal diameter of epitheca 4 is 3.45mm～3.5mm, and the external diameter of epitheca 4 is 4.45mm～4.5mm, and the length of epitheca 4 is 200mm～250mm.
Comparatively the preferred sizes specification is: the diameter of guiding tube adnexa 1 is 1.2mm, and the length of guiding tube adnexa 1 is 425mm, and the length of the head 12 of guiding tube adnexa is 15mm; The internal diameter of guiding tube body 21 is 1.5mm, and the external diameter of guiding tube body 21 is 2mm, and the length of guiding tube 2 is 375mm, and the length of guiding tube head 22 is 15mm; The internal diameter of positioning and fixing tube 3 is 2.5mm, and the external diameter of positioning and fixing tube 3 is 3mm, and the length of positioning and fixing tube 3 is 350mm; The internal diameter of epitheca 4 is 3.5mm, and the external diameter of epitheca 4 is 4.5mm, and the length of epitheca 4 is 225mm.
Need to prove that specifications such as the diameter of each parts of peritoneoscope guide device for embedding zebra guide wires for ureteral stent below of the present invention, length are not limited only to above dimensions, can also adjust accordingly according to concrete user demand.
Use when of the present invention, at first place operating walk way to epitheca 4, and the arrival end that epitheca 4 is arranged in operating walk way is fixed through locating part 42; The guiding tube adnexa 1 that again shape can be remembered inserts in the guiding tube 2, but does not stretch out the end of guiding tube head 22, and the guiding tube adnexa 1 that thereupon guiding tube 2 can be remembered together with shape is inserted in the positioning and fixing tube 3; Guiding tube head 22 wouldn't be exposed the head end of positioning and fixing tube 3, the guiding tube adnexa 1 that thereupon guiding tube 2, shape can be remembered, and positioning and fixing tube 3 is together inserted in the epitheca 4; According to the head end of practical situation adjustment positioning and fixing tube 3 distance, when the about 5mm-10mm of the distance place of the head end of positioning and fixing tube 3 and ureter otch, positioning and fixing tube 3 is fixed through export trade holder 43 with the ureter otch; Aim at the position propelling guiding tube 2 of ureter otch and the guiding tube adnexa 1 that shape can be remembered thereof thereupon; Make guiding tube head 22 be the arc-shaped bend shape, and stretch into smoothly, get into the ureter tube chamber to the ureter otch; Closely be connected fixing with the afterbody 31 of positioning and fixing tube guiding tube afterbody 25 this moment again; Withdraw from guiding tube adnexa 1, make guiding tube head 22 be retained in the ureter tube intracavity, thereby set up one from the terminal mouth of pipe of guiding tube afterbody 25, along guiding tube 2 tube chambers, ureter tube chamber, up to the complete channels of bladder; Head end with the zebra seal wire inserts from the guiding tube afterbody 25 terminal mouths of pipe again; Get into the ureter tube chambers along guiding tube 2,, keep the position of zebra seal wire and withdraw from guiding tube 2 up to getting into bladder; Under zebra seal wire and propelling movement, insert ureter bracket in the ureter tube chamber at boost tube; In the ureter otch, withdraw from zebra seal wire and boost tube until its end then, and positioning and fixing tube 3 and epitheca 4; Keep somewhere position with the tissue forceps adjustment at last, thereby accomplish whole process in intra-ureteral ureter bracket.After using the present invention, the whole operation process of inserting ureter bracket is merely 5-10 minute.
Two of the specific embodiment of peritoneoscope guide device for embedding zebra guide wires for ureteral stent below of the present invention; The main technical schemes of present embodiment is identical with embodiment 1; No longer give unnecessary details at this; Its difference is that guiding tube adnexa 1 is the guiding tube adnexa with elasticity core arrangement of shape memory characteristic.This core arrangement is to have solid inner core.After withdrawing from inner core; Guiding tube head 22 still can be retained in the ureter tube intracavity; Thereby set up one from the guiding tube tail end mouth of pipe, along guiding tube 2 tube chambers, ureter tube chamber, up to the complete channels of bladder; Make the zebra seal wire be able to insert apace smoothly, thereby finally make ureter bracket insert the ureter tube intracavity smoothly.
Three of the specific embodiment of peritoneoscope guide device for embedding zebra guide wires for ureteral stent below of the present invention; The main technical schemes of present embodiment is identical with embodiment 1; No longer give unnecessary details at this; Its difference is, the guiding tube adnexa of the core arrangement that guiding tube adnexa 1 can also constitute for the guiding tube adnexa of Nitinol core arrangement with shape memory characteristic or other metal with shape memory characteristic or polymer.
Most alloy or metal with shape memory characteristic, they under transition temperature from martensitic phase fade to austenite or from austenite phase transformation to martensite.This transition temperature is to be made up of certain temperature range, and in this temperature range, these memory materials become its preformed shape gradually owing to phase transformation slowly.The present invention can adopt Nitinol as inner core, and this Nitinol has good histocompatibility, memory orientation, and the characteristics of hyperelastic memory particularity; Carry out preforming at this Nitinol during for austenite, be cooled to it then and be in process, again it is remained distortion under the martensitic state then to the martensite conversion; In the scope of its recovery of shape temperature; Impel its metallographic to change, produce the memory restoring force, thereby recover original preformed shape.
Should be noted that at last; Above embodiment is only in order to explain technical scheme of the present invention; But not to the restriction of protection domain of the present invention, although with reference to preferred embodiment the present invention has been done explanation at length, those of ordinary skill in the art is to be understood that; Can make amendment or be equal to replacement technical scheme of the present invention, and not break away from the essence and the scope of technical scheme of the present invention.
Claims (10)
1. a peritoneoscope guide device for embedding zebra guide wires for ureteral stent below is characterized in that: be provided with epitheca, positioning and fixing tube, guiding tube and guiding tube adnexa;
Said positioning and fixing tube is the positioning and fixing tube of hard, and said positioning and fixing tube is arranged in said epitheca, and can be along moving in the tube chamber of said epitheca;
The outer wall of said epitheca is provided with the epitheca holder, and said epitheca closely connects through the said epitheca holder place, required location corresponding with said positioning and fixing tube;
The guiding tube head that said guiding tube includes the guiding tube body, communicates with an end of said guiding tube body, and the guiding tube afterbody that communicates with the other end of said guiding tube body, said guiding tube is softish guiding tube;
Said guiding tube adnexa is the guiding tube adnexa with shape memory characteristic; Under naturalness; The head of said guiding tube adnexa has the bowing shape, and when said guiding tube adnexa was inserted in said guiding tube, said guiding tube head was the bowing shape;
Said guiding tube and said guiding tube adnexa are arranged in said positioning and fixing tube, and aim at the propelling of ureter cut-out direction, then said guiding tube afterbody closely are connected with the afterbody of said positioning and fixing tube.
2. peritoneoscope guide device for embedding zebra guide wires for ureteral stent below according to claim 1 is characterized in that: said guiding tube adnexa is the guiding tube adnexa with elasticity core arrangement of shape memory characteristic.
3. peritoneoscope guide device for embedding zebra guide wires for ureteral stent below according to claim 1 and 2 is characterized in that: said guiding tube adnexa is the guiding tube adnexa with Nitinol core arrangement of shape memory characteristic.
4. peritoneoscope guide device for embedding zebra guide wires for ureteral stent below according to claim 1; It is characterized in that: the intersection between said guiding tube head and the said guiding tube body is provided with the annulet line, and said annulet line is roentgenopaque annulet line.
5. according to claim 1 or 2 or 4 described peritoneoscope guide device for embedding zebra guide wires for ureteral stent below, it is characterized in that: said guiding tube is the guiding tube with transparent tube wall.
6. peritoneoscope guide device for embedding zebra guide wires for ureteral stent below according to claim 1; It is characterized in that: said epitheca holder one segment distance of the outer span of said epitheca is provided with locating part, and said locating part is arranged in the arrival end of operating walk way in use.
7. peritoneoscope guide device for embedding zebra guide wires for ureteral stent below according to claim 1 is characterized in that: the tail end of said guiding tube adnexa is provided with the grip part.
8. peritoneoscope guide device for embedding zebra guide wires for ureteral stent below according to claim 1 and 2 is characterized in that:
The diameter of said guiding tube adnexa is 1mm～1.4mm, and the length of said guiding tube adnexa is 400mm～450mm, and the length of the head of said guiding tube adnexa is 14mm～17mm;
The internal diameter of said guiding tube body is 1.45mm～1.5mm, and the external diameter of said guiding tube body is 1.95mm～2mm, and the length of said guiding tube is 350mm～400mm, and the length of said guiding tube head is 14mm～17mm;
The internal diameter of said positioning and fixing tube is 2.45mm～2.5mm, and the external diameter of said positioning and fixing tube is 2.95mm～3mm, and the length of said positioning and fixing tube is 320mm～370mm;
The internal diameter of said epitheca is 3.45mm～3.5mm, and the external diameter of said epitheca is 4.45mm～4.5mm, and the length of said epitheca is 200mm～250mm.
9. peritoneoscope guide device for embedding zebra guide wires for ureteral stent below according to claim 8 is characterized in that:
The diameter of said guiding tube adnexa is 1.2mm, and the length of said guiding tube adnexa is 425mm, and the length of the head of said guiding tube adnexa is 15mm;
The internal diameter of said guiding tube body is 1.5mm, and the external diameter of said guiding tube body is 2mm, and the length of said guiding tube is 375mm, and the length of said guiding tube head is 15mm;
The internal diameter of said positioning and fixing tube is 2.5mm, and the external diameter of said positioning and fixing tube is 3mm, and the length of said positioning and fixing tube is 350mm;
The internal diameter of said epitheca is 3.5mm, and the external diameter of said epitheca is 4.5mm, and the length of said epitheca is 225mm.
10. peritoneoscope guide device for embedding zebra guide wires for ureteral stent below according to claim 1; It is characterized in that: when the said ureter otch 5mm of said positioning and fixing tube distance～10mm, said positioning and fixing tube closely is connected with said epitheca through said epitheca holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101795351A CN101849866B (en) | 2010-05-14 | 2010-05-14 | Guide device for embedding zebra guide wires for ureteral stent below laparoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101795351A CN101849866B (en) | 2010-05-14 | 2010-05-14 | Guide device for embedding zebra guide wires for ureteral stent below laparoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101849866A CN101849866A (en) | 2010-10-06 |
| CN101849866B true CN101849866B (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101795351A Expired - Fee Related CN101849866B (en) | 2010-05-14 | 2010-05-14 | Guide device for embedding zebra guide wires for ureteral stent below laparoscope |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580226A (en) * | 2012-03-05 | 2012-07-18 | 中国人民解放军第三军医大学第二附属医院 | Medical traction wire and ureteral stent comprising same |
| CN103143103A (en) * | 2013-02-07 | 2013-06-12 | 许传亮 | Novel ureteral stent |
| CN103202723B (en) * | 2013-03-29 | 2015-01-07 | 河南科技大学第一附属医院 | Support tube combined thruster for laparoscopic operation |
| CN104784805A (en) * | 2014-01-21 | 2015-07-22 | 复旦大学附属肿瘤医院 | Auxiliary suite for ureter stent implantation |
| WO2017114928A1 (en) * | 2015-12-30 | 2017-07-06 | Nuheart As | Transcatheter insertion system |
| CN106075702A (en) * | 2016-05-23 | 2016-11-09 | 佛山市第人民医院 | Medical per os Eustachian tube sacculus dilating catheter is special inserts apparatus |
| CN113663203B (en) * | 2020-01-17 | 2023-04-28 | 浙江医高医疗科技有限公司 | Ureteral stent of improvement |
| CN111134921A (en) * | 2020-02-23 | 2020-05-12 | 广州维力医疗器械股份有限公司 | A pull out device for pulling out ureteral stent |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5415630A (en) * | 1991-07-17 | 1995-05-16 | Gory; Pierre | Method for removably implanting a blood filter in a vein of the human body |
| CN201668548U (en) * | 2010-05-14 | 2010-12-15 | 卢振权 | Conductor for imbedding ureteral stent zebra guide wire under laparoscope |
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2010
- 2010-05-14 CN CN2010101795351A patent/CN101849866B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5415630A (en) * | 1991-07-17 | 1995-05-16 | Gory; Pierre | Method for removably implanting a blood filter in a vein of the human body |
| CN201668548U (en) * | 2010-05-14 | 2010-12-15 | 卢振权 | Conductor for imbedding ureteral stent zebra guide wire under laparoscope |
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| CN101849866A (en) | 2010-10-06 |
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