CN201668548U - Conductor for imbedding ureteral stent zebra guide wire under laparoscope - Google Patents
Conductor for imbedding ureteral stent zebra guide wire under laparoscope Download PDFInfo
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- CN201668548U CN201668548U CN 201020199580 CN201020199580U CN201668548U CN 201668548 U CN201668548 U CN 201668548U CN 201020199580 CN201020199580 CN 201020199580 CN 201020199580 U CN201020199580 U CN 201020199580U CN 201668548 U CN201668548 U CN 201668548U
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Abstract
The utility model discloses a conductor for imbedding a ureteral stent zebra guide wire under a laparoscope, which is provided with a sheath, a positioning fixed tube, a drainage tube and a drainage tube accessory, wherein the positioning fixed tube is a hard positioning fixed tube, passes through the sheath and can move along the cavity of the sheath; the outer wall of the sheath is provided with a sheath fixator; the sheath is tightly connected with the positioning fixed tube through the sheath fixator; the drainage tube comprises a drainage tube body, a drainage tube head communicated with one end of the drainage tube body and a drainage tube tail part communicated with the other end of the drainage tube body; the drainage tube is a soft drainage tube; the drainage tube and the drainage tube accessory pass through the positioning fixed tube; the drainage tube head and the head of the drainage tube accessory are inserted towards the cutting direction of the ureter; and the drainage tube tail part is tightly connected with the tail part of the positioning fixed tube. Compared with the prior art, the conductor can assist to imbed the ureteral stent zebra guide wire, and lead the operation time to be shortened and the safety to be improved, has simple structure and low manufacturing cost, and is convenient for promotion.
Description
Technical field
This utility model relates to a kind of surgical operation medical assistance apparatus, particularly relates to being 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 pipe) 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 situations 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, easily causes wound infection simultaneously.
Along with the develop rapidly of industrial technologies such as photoelectricity, image, manufacturing, brought making rapid progress of medical science technology application, surgical operation is also just developing towards the direction of Wicresoftization, noinvasiveization, makes many traditional open surgery be 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 finished under peritoneoscope.But it is so light that the placement ureter bracket is far from open surgery placement ureter bracket under the peritoneoscope, 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 that placing ureter bracket under the peritoneoscope becomes a big technical barrier.
In the prior art, the conventional method that peritoneoscope is placed ureter bracket down 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 by another operating walk way (Trocar) again, till guaranteeing that zebra seal wire head end arrives intravesical, then along the zebra seal wire, and under the propelling movement of boost tube, place ureter bracket 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 there is following problem in the aforesaid operations method:
1, since the zebra seal wire by operating walk way (Trocar) when entering surgical field of view, the seal of working place is destroyed and cause 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 easily from the ureter tube chamber, enter 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 easily causes certain medical resource waste and increases 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, so there are weak points such as time-consuming, effort, poor stability, less economical, easy pollution, this has become the bottleneck that further develops of this class operation.
Therefore, at weak point of the prior art, needing badly provides a kind of can assisting to insert ureter bracket 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 utility model content
The purpose of this utility model is to avoid weak point of the prior art and provides a kind of can assisting to insert ureter bracket 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 purpose of this utility model realizes by 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;
Described positioning and fixing tube is the positioning and fixing tube of hard, and described positioning and fixing tube is arranged in described epitheca, and can be along moving in the tube chamber of described epitheca;
The outer wall of described epitheca is provided with the epitheca holder, and described epitheca closely connects by the described epitheca holder place, required location corresponding with described positioning and fixing tube;
The guiding tube head that described guiding tube includes the guiding tube body, communicates with an end of described guiding tube body, and the guiding tube afterbody that communicates with the other end of described guiding tube body, described guiding tube is softish guiding tube;
Described guiding tube adnexa is the guiding tube adnexa with shape memory characteristic, under naturalness, the head of described guiding tube adnexa has the bowing shape, and when described guiding tube adnexa was inserted in described guiding tube, described guiding tube head was the bowing shape;
Described guiding tube and described guiding tube adnexa are arranged in described positioning and fixing tube, the head of described guiding tube head and described guiding tube adnexa stretches into towards the ureter cut-out direction in use, and described guiding tube afterbody closely is connected with the afterbody of described 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 utility model.
Above, above-mentioned guiding tube adnexa is the guiding tube adnexa with Nitinol core arrangement of shape memory characteristic.
As of the present utility model another preferred embodiment be, the intersection between above-mentioned guiding tube head and the described guiding tube body is provided with the annulet line, and described 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 utility model.
As of the present utility model another preferred embodiment be, described epitheca holder one segment distance of the outer span of above-mentioned epitheca is provided with locating part, and described locating part is arranged in the arrival end of operating walk way (Trocar) in use.
As of the present utility model 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 described guiding tube adnexa is 400mm～450mm, and the length of the head of described guiding tube adnexa is 14mm～17mm;
The internal diameter of described guiding tube body is 1.45mm～1.5mm, and the external diameter of described guiding tube body is 1.95mm～2mm, and the length of described guiding tube is 350mm～400mm, and the length of described guiding tube head is 14mm～17mm;
The internal diameter of described positioning and fixing tube is 2.45mm～2.5mm, and the external diameter of described positioning and fixing tube is 2.95mm～3mm, and the length of described positioning and fixing tube is 320mm～370mm;
The internal diameter of described epitheca is 3.45mm～3.5mm, and the external diameter of described epitheca is 4.45mm～4.5mm, and the length of described epitheca is 200mm～250mm.
Further, the diameter of the above guiding tube adnexa is 1.2mm, and the length of described guiding tube adnexa is 425mm, and the length of the head of described guiding tube adnexa is 15mm;
The internal diameter of described guiding tube body is 1.5mm, and the external diameter of described guiding tube body is 2mm, and the length of described guiding tube is 375mm, and the length of described guiding tube head is 15mm;
The internal diameter of described positioning and fixing tube is 2.5mm, and the external diameter of described positioning and fixing tube is 3mm, and the length of described positioning and fixing tube is 350mm;
The internal diameter of described epitheca is 3.5mm, and the external diameter of described epitheca is 4.5mm, and the length of described epitheca is 225mm.
Preferred embodiment be when the described ureter otch 5mm of described positioning and fixing tube distance～10mm, described positioning and fixing tube closely to be connected with described epitheca as of the present utility model another by described epitheca holder.
Peritoneoscope guide device for embedding zebra guide wires for ureteral stent below of the present utility model 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 by 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.
This utility model compared with prior art can be assisted and insert ureter bracket 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
The utility model is described in further detail to utilize accompanying drawing, but the embodiment in the accompanying drawing does not constitute any restriction of the present utility model.
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 utility model;
Fig. 2 is a kind of peritoneoscope guide device for embedding zebra guide wires for ureteral stent below of the present utility model " 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 utility model;
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 utility model;
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 utility model;
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 utility model;
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 utility model.
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
With the following Examples this utility model 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 utility model as depicted in figs. 1 and 2, is 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 is by the corresponding closely connection of place, required location of epitheca holder 43 and positioning and fixing tube 3.This is connected to fixedly connected closely.In inserting the ureter bracket process, surgical doctor needs according to practical situation, adjust the head end of 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, by 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 utility model 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 softnesses, 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 and guiding tube adnexa 1 are arranged in positioning and fixing tube 3 together, 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 is subjected to the big external force of outer wall of the positioning and fixing tube 3 of hard, can temporarily become straight linear 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 pass 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 disappears, 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 stretch into, then guiding tube afterbody 25 is closely fixedlyed connected with the afterbody 31 of positioning and fixing tube.
This head with arc-shaped bend shape can guarantee to enter smoothly the ureter incision site, make guiding tube head 22 to enter 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 enters the ureter tube chamber smoothly by the tube chamber of guiding tube 2, thereby enters bladder at last.
In order to ensure the seal in the operation, need guiding tube afterbody 25 is closely fixedlyed connected with the afterbody 31 of positioning and fixing tube.The tight mode of fixedlying connected between the afterbody 31 of this guiding tube afterbody 25 and positioning and fixing tube is detachable fixedly connected mode.Closely fixedly connected mode 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 utility model 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 standby.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 under the perspective of X ray, be convenient to surgical doctor and accurately grasp the position that guiding tube 2 is sent into down from peritoneoscope with roentgenopaque metal powder labelling.
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 is greater than the wall thickness of bow portion in the tool, and evenly partly slips over and cross.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 by 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.By 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 utility model, 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, specifications such as the diameter of each parts of peritoneoscope guide device for embedding zebra guide wires for ureteral stent below of the present utility model, length are not limited only to above dimensions, can also adjust accordingly according to concrete user demand.
When using this utility model, at first epitheca 4 is placed operating walk way, and the arrival end that epitheca 4 is arranged in operating walk way is fixed by locating part 42, the guiding tube adnexa 1 that again shape can be remembered inserts in the guiding tube 2, but do not stretch out the end of guiding tube head 22, the guiding tube adnexa 1 that guiding tube 2 can be remembered together with shape is inserted in the positioning and fixing tube 3 thereupon, the head end that guiding tube head 22 wouldn't be exposed positioning and fixing tube 3, thereupon with guiding tube 2, the guiding tube adnexa 1 that shape can be remembered, and positioning and fixing tube 3 is together inserted in the epitheca 4, adjust the distance of the head end of positioning and fixing tube 3 according to practical situation with the ureter otch, when the about 5mm-10mm of the distance place of the head end of positioning and fixing tube 3 and ureter otch, by export trade holder 43 that positioning and fixing tube 3 is fixing, 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 to the ureter otch, enter the ureter tube chamber, closely be connected and fixed the afterbody 31 of guiding tube afterbody 25 with positioning and fixing tube this moment again, withdraw from guiding tube adnexa 1, make guiding tube head 22 be retained in the ureter tube intracavity, thereby set up a mouth of pipe from guiding tube afterbody 25 ends, along guiding tube 2 tube chambers, the ureter tube chamber, complete channels up to bladder, again the head end of the zebra seal wire mouth of pipe from guiding tube afterbody 25 ends is inserted, enter the ureter tube chamber along guiding tube 2, up to entering bladder, keep the position of zebra seal wire and withdraw from guiding tube 2, under zebra seal wire and propelling movement, ureter bracket is inserted in the ureter tube chamber at boost tube, until its end in the ureter otch, withdraw from zebra seal wire and boost tube then, and positioning and fixing tube 3 and epitheca 4, keep somewhere position with the tissue forceps adjustment at last, thereby finish whole process in intra-ureteral ureter bracket.After using this utility model, the whole operation process of inserting ureter bracket is only for 5-10 minute.
Embodiment 2
Two of the specific embodiment of peritoneoscope guide device for embedding zebra guide wires for ureteral stent below of the present utility model, 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.
Embodiment 3
Three of the specific embodiment of peritoneoscope guide device for embedding zebra guide wires for ureteral stent below of the present utility model, 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 of certain temperature range, and in this temperature range, these memory materials become its preformed shape gradually owing to phase transformation slowly.This utility model can adopt Nitinol as inner core, 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 the explanation the technical solution of the utility model; but not to the restriction of this utility model protection domain; although this utility model has been done to explain with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can make amendment or be equal to replacement the technical solution of the utility model, and not break away from the essence and the scope of technical solutions of the utility model.
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;
Described positioning and fixing tube is the positioning and fixing tube of hard, and described positioning and fixing tube is arranged in described epitheca, and can be along moving in the tube chamber of described epitheca;
The outer wall of described epitheca is provided with the epitheca holder, and described epitheca closely connects by the described epitheca holder place, required location corresponding with described positioning and fixing tube;
The guiding tube head that described guiding tube includes the guiding tube body, communicates with an end of described guiding tube body, and the guiding tube afterbody that communicates with the other end of described guiding tube body, described guiding tube is softish guiding tube;
Described guiding tube adnexa is the guiding tube adnexa with shape memory characteristic, under naturalness, the head of described guiding tube adnexa has the bowing shape, and when described guiding tube adnexa was inserted in described guiding tube, described guiding tube head was the bowing shape;
Described guiding tube and described guiding tube adnexa are arranged in described positioning and fixing tube, the head of described guiding tube head and described guiding tube adnexa stretches into towards the ureter cut-out direction in use, and described guiding tube afterbody closely is connected with the afterbody of described 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: described 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: described 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 described guiding tube head and the described guiding tube body is provided with the annulet line, and described 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: described 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: described epitheca holder one segment distance of the outer span of described epitheca is provided with locating part, and described locating part is arranged in the arrival end of operating walk way (Trocar) 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 described 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 described guiding tube adnexa is 1mm～1.4mm, and the length of described guiding tube adnexa is 400mm～450mm, and the length of the head of described guiding tube adnexa is 14mm～17mm;
The internal diameter of described guiding tube body is 1.45mm～1.5mm, and the external diameter of described guiding tube body is 1.95mm～2mm, and the length of described guiding tube is 350mm～400mm, and the length of described guiding tube head is 14mm～17mm;
The internal diameter of described positioning and fixing tube is 2.45mm～2.5mm, and the external diameter of described positioning and fixing tube is 2.95mm～3mm, and the length of described positioning and fixing tube is 320mm～370mm;
The internal diameter of described epitheca is 3.45mm～3.5mm, and the external diameter of described epitheca is 4.45mm～4.5mm, and the length of described 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 described guiding tube adnexa is 1.2mm, and the length of described guiding tube adnexa is 425mm, and the length of the head of described guiding tube adnexa is 15mm;
The internal diameter of described guiding tube body is 1.5mm, and the external diameter of described guiding tube body is 2mm, and the length of described guiding tube is 375mm, and the length of described guiding tube head is 15mm;
The internal diameter of described positioning and fixing tube is 2.5mm, and the external diameter of described positioning and fixing tube is 3mm, and the length of described positioning and fixing tube is 350mm;
The internal diameter of described epitheca is 3.5mm, and the external diameter of described epitheca is 4.5mm, and the length of described 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 described ureter otch 5mm of described positioning and fixing tube distance～10mm, described positioning and fixing tube closely is connected with described epitheca by described epitheca holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020199580 CN201668548U (en) | 2010-05-14 | 2010-05-14 | Conductor for imbedding ureteral stent zebra guide wire under laparoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020199580 CN201668548U (en) | 2010-05-14 | 2010-05-14 | Conductor for imbedding ureteral stent zebra guide wire under laparoscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201668548U true CN201668548U (en) | 2010-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020199580 Expired - Lifetime CN201668548U (en) | 2010-05-14 | 2010-05-14 | Conductor for imbedding ureteral stent zebra guide wire under laparoscope |
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| Country | Link |
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| CN (1) | CN201668548U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101849866B (en) * | 2010-05-14 | 2012-05-30 | 卢振权 | Guide device for embedding zebra guide wires for ureteral stent below laparoscope |
| CN102885666A (en) * | 2011-06-10 | 2013-01-23 | 麦克鲁斯内血管有限责任公司 | Lock/floating marker band on pusher wire for self-expanding stents or medical devices |
| CN104271035A (en) * | 2012-05-07 | 2015-01-07 | 圣犹达医疗用品电生理部门有限公司 | Medical device guidewire with helical cutout and coating |
-
2010
- 2010-05-14 CN CN 201020199580 patent/CN201668548U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101849866B (en) * | 2010-05-14 | 2012-05-30 | 卢振权 | Guide device for embedding zebra guide wires for ureteral stent below laparoscope |
| CN102885666A (en) * | 2011-06-10 | 2013-01-23 | 麦克鲁斯内血管有限责任公司 | Lock/floating marker band on pusher wire for self-expanding stents or medical devices |
| US9539129B2 (en) | 2011-06-10 | 2017-01-10 | DePuy Synthes Products, Inc. | Lock/floating marker band on pusher wire for self-expanding stents or medical devices |
| CN102885666B (en) * | 2011-06-10 | 2017-03-01 | 德普伊新特斯产品有限责任公司 | Locking/floating the Marking ring pushing on tinsel for self-expandable stent or medical device |
| CN104271035A (en) * | 2012-05-07 | 2015-01-07 | 圣犹达医疗用品电生理部门有限公司 | Medical device guidewire with helical cutout and coating |
| US9364640B2 (en) | 2012-05-07 | 2016-06-14 | St. Jude Medical Atrial Fibrillation Division, Inc. | Medical device guidewire with helical cutout and coating |
| US10271793B2 (en) | 2012-05-07 | 2019-04-30 | St. Jude Medical, Atrial Fibrillation Division, Inc. | Medical device guidewire with helical cutout and coating |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101215 Effective date of abandoning: 20120530 |