CN205697875U - Stamp card balloon dilatation catheter - Google Patents

Abstract

The utility model discloses a kind of stamp card balloon dilatation catheter, including stamp card, push rod, dilating sacculus and unidirectional gas tube.Stamp card head end can be expanded after being provided with inflation, for manufacturing the dilating sacculus in endoscope-assistant surgery space.Stamp card intracavity activity is buried underground for holding dilating sacculus, it is simple to insert the push rod in gap under otch through less operative incision after dilating sacculus deformation.Unidirectional gas tube connects inflator pump and quickly can be inflated dilating sacculus, thus is elapsed by the tissue around the close gap under operative incision, makes gap expansion under otch become big and forms endoscope-assistant surgery space.Push rod front end arranges dilating sacculus withdrawing device, can from stamp card head end abjection and be taken out through stamp card intracavity by dilating sacculus after dilating sacculus completes operative space expansion.This utility model simple in construction, easy to use, some endoscope-assistant surgery is applied, there is the function of balloon dilatation catheter in early days, it is possible to be used for manufacturing endoscope-assistant surgery space, the dilating sacculus of stamp card head end can be deviate from after endoscope-assistant surgery completes, thus use in operation in the function possessing stamp card, its structure is ingenious, and usability is strong, safe and reliable.

Description

Stamp card balloon dilatation catheter

Technical field

This utility model relates to a kind of abdominal cavity puncture outfit (stamp card), belongs to the technical field of medical apparatus and instruments.

Background technology

At some endoscope-assistant surgery, during such as kidney, urine output, bladder cavity videoendoscopic surgery, because operative site is without physiology lacuna, need to be After operation consent otch skin, artificial expansion manufactures an operative space is subsequent operation service.Need during space under skin expansion otch The safely and effectively soft tissue under passage notch, it is impossible to surrounding organ is caused damage.

When abdominal cavity puncture outfit is endoscope-assistant surgery must apparatus, for for endoscope-assistant surgery come in and go out operative space provide one just Prompt passage.

The apparatus elapsing sub-dermal soft tissue at present clinically is lock out operation with abdominal cavity puncture outfit, and expansion apparatus is inserted by line Subcutaneous, expand backed off after random, then abdominal cavity puncture outfit has been inserted in otch, made troubles to operation technique, increase corrective surgery Risk and expense.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, it is provided that a kind of stamp card balloon dilatation catheter, bag Include stamp card loop bar, push rod, dilating sacculus and fill valve soon.When dilating sacculus is held by push rod, the long and narrow energy of dilating sacculus profile is suitable Profit implants gap under otch by operative incision, and using syringe to pass through to fill valve soon can be to the expansion operation of dilating sacculus fast aeration Space, operative space makes dilating sacculus depart from stamp card loop bar by the sacculus release unit of push rod head end after being formed.Extract Push rod, stamp card loop bar need not be extracted, and undertakes abdominal cavity puncture outfit and is continuing with, and the dilating sacculus departed from can take out as specimen Set uses, simple in construction, and low cost is safe and reliable.

The technical scheme provided according to this utility model, described a kind of stamp card balloon dilatation catheter, including for inserting chamber mirror Under under operative incision, gap inflation or topping up expand passage otch, soft tissue forms the dilating sacculus in endoscope-assistant surgery space, in chamber For forming hole road implantation surgery apparatus and forming Kong Lu and to dilating sacculus inflation or the stamp card loop bar of topping up, be used in videoendoscopic surgery Dilating sacculus is assisted to insert the push rod in gap under otch smoothly and for coordinating syringe to expansion by endoscope-assistant surgery otch The hollow tubular of sacculus fast aeration fill valve (4) soon.

Described stamp card loop bar afterbody is provided with and seals structure and the inflation inlet with switch.Described dilating sacculus and stamp card loop bar Head end open annular is tightly connected, and ring stamp cutting ferrule rod head end opening forms the dilating sacculus sealed.Described push rod length is relatively stabbed Card loop bar is long, and after the push rod limit advances in stamp card loop bar, the pushed masthead of dilating sacculus of stamp cutting ferrule rod head end holds deformation Endoscope-assistant surgery otch can be passed through and insert gap under otch.Described push rod main body and head end bar cross section are less than stamp cutting ferrule Bar intracavity section, push rod main body and head end bar portion can insert stamp card loop bar inner chamber and and stab the formation of card loop bar inwall for institute State dilating sacculus inflation or the Kong Lu of topping up.

Described stamp cutting ferrule head section intracavity diameter is big compared with posterior segment intracavity diameter, forms snap ring and sets chamber, meanwhile, expands ball Capsule oral area arranges the sacculus snap ring of tubular, and dilating sacculus oral area ring packing is connected to the outer wall of sacculus snap ring.Described sacculus card External diameter after ring connection dilating sacculus is set intracavity footpath and is mated with snap ring, the internal diameter of sacculus snap ring and stamp card loop bar posterior segment internal diameter Identical, it is short that the length of sacculus snap ring sets chamber compared with snap ring.Described sacculus snap ring can firmly be embedded in snap ring and set bosom, chamber and make Setting rear sacculus snap ring inwall to be connected with stamp card loop bar posterior segment interior walls be smooth, meanwhile, the snap ring of sacculus snap ring front portion sets chamber Encompass dilating sacculus cervical region and form loop bar capsule neck chamber.Described loop bar capsule neck chamber is the little horn-like structure in the mouth big end.

Described push rod head end is provided for the sacculus release unit departed from by dilating sacculus with stamp card loop bar.

Described sacculus release unit includes for dilating sacculus and sacculus snap ring are cut the cutter head of disengaging, are used for cutter head For movable embedding cutter head and the operating cavity of action bars, described operating cavity pair in carrying out the action bars that operates and being arranged on push rod The position answering cutter head arranges side opening and forms cutter head gateway.Walk crosswise and run through cutter head root and close on the position bottom cutter head gateway Putting and corresponding both sides, cutter head gateway sidewall arranges cradle head, described cutter head can be with cradle head as axis rotation.Described behaviour Arrange the fork arm head of fork configuration as rod head end, fork arm head fork arm depression can accommodate cutter head.Walk crosswise and run through cutter head root and relatively turn Diarthrodial offside and two fork arm heads arrange passage joint.Can be by passage joint and the joining of cradle head during passage action bars Closing makes the tip of cutter head stretch out operating cavity or retraction operation chamber by cutter head gateway.

Described action bars goes out push rod afterbody and arranges operation handle and locking mechanism, and the action bars body of rod arranges telltale mark, Action bars can be demarcated by described telltale mark relative to the position of push rod, locking mechanism energy temporary locking action bars and propelling movement The relative position of bar.

Described cutter head gateway is closed on push rod head end side and is provided with limit body, limits cutter head along cradle head slewing area Spend for being 0 degree-90 with push rod major axis away from limit body side angulation.

When described cutter head becomes an angle of 90 degrees with push rod major axis, described push rod cross-sectional diameter stretches out cutter head with cutter head and goes out The length of entrance and more than horn-like loop bar capsule neck chamber bottom lengths, meanwhile, less than horn-like loop bar capsule neck accent minister's degree.

The described valve tail end that fills soon arranges the air inlet mated with syringe, and the described valve head end that fills soon is arranged and stamp card loop bar tail The gas outlet of portion's inflation inlet coupling.Closing on described gas outlet to arrange and fill check valve soon, gas can only be discharged through the too fast check valve that fill Gas outlet, it is impossible to reverse flow.Filling valve soon, be in communication with the outside quick is set on sidewall between air inlet and gas outlet Breather check valve, gas can only enter through quick breather check valve and fill soon in valve pocket, it is impossible to reverse flow.

Described dilating sacculus ring shaped movable buries annular seal wire underground, arranges stretch ring for being received by tractive on annular seal wire Tight annular seal wire tightens up dilating sacculus oral area.

Advantage of the present utility model: the effect of operative space dilator can be undertaken in early days, safely and effectively expand operative space, And organize passage state after the observation inflation of endoscope-assistant surgery photographic head can be inserted.After operative space is set up, operation departs from expansion ball Capsule, stamp card loop bar undertakes abdominal cavity puncture outfit and is continuing with, and the dilating sacculus departed from can take out set as specimen and use, structure letter Single, low cost, safe and reliable.

Accompanying drawing explanation

Fig. 1 is longitudinal section structural representation of the present utility model；

Fig. 2 is vertical view visual angle of the present utility model longitudinal section structural representation；

Fig. 3 is the longitudinal section structural representation of this utility model stamp card loop bar；

Fig. 4 is the structural representation of this utility model push rod；

Fig. 5 is this utility model dilating sacculus and stamp card loop bar junction longitudinal section schematic diagram；

Fig. 6 is this utility model dilating sacculus and sacculus snap ring junction longitudinal section schematic diagram；

Fig. 7 is the longitudinal section schematic diagram that this utility model stamp cutting ferrule rod head end snap ring sets chamber；

Fig. 8 is that this utility model cutter head retraction is embedded in the schematic diagram in push rod gateway；

Fig. 9 is that this utility model cutter head is perpendicular to push rod, and the schematic diagram of gateway is stretched out in cutter head end；

Figure 10 is the schematic top plan view of this utility model Fig. 8；

Figure 11 is the schematic diagram of this utility model cutter head cutting dilating sacculus cervical region；

Figure 12 is the structural representation that this utility model fills valve soon；

Figure 13 be this utility model dilating sacculus cervical region arrange annular seal wire be assemblied in stamp card loop bar schematic diagram；

Figure 14 is the schematic diagram that this utility model dilating sacculus cervical region arranges annular seal wire.

Description of reference numerals: 1-stamp card loop bar, 11-seals structure, 12-switch, 13-inflation inlet, 14-snap ring set chamber, 15-loop bar capsule neck chamber, 2-push rod, 21-push the body of rod, 22-propelling movement handle, 3-dilating sacculus, 31-sacculus snap ring, 32-annular Seal wire, 33-stretch ring, 4-fill valve soon, 41-air inlet, 42-gas outlet, 43-fill check valve soon, the quick breather check valve of 44-, 5-sacculus release unit, 51-cutter head, 52-action bars, 53-operating cavity, 54-cutter head gateway, 55-cradle head, 56-fork arm Head, 57-passage joint, 58-limit body, A-push rod transverse diameter, B-stretch out at the bottom of cutter head gateway cutter head length, C-loop bar capsule neck chamber Minister's degree and D-loop bar capsule neck accent minister's degree.

Detailed description of the invention

Below in conjunction with concrete accompanying drawing, the utility model is described in further detail.

As shown in Figure 1, Figure 2, shown in Fig. 3 and Fig. 4, described a kind of stamp card balloon dilatation catheter, including cutting for inserting endoscope-assistant surgery Under under mouthful, gap inflation or topping up expand passage otch, soft tissue forms the dilating sacculus 3 in endoscope-assistant surgery space, at chamber mirror hands In art for formed hole road implantation surgery apparatus and formed Kong Lu dilating sacculus 3 is inflated or the stamp card loop bar 1 of topping up, for assisting Dilating sacculus 3 is helped to insert the push rod 2 in gap under otch smoothly and for coordinating syringe to expansion by endoscope-assistant surgery otch The hollow tubular of sacculus 3 fast aeration fill valve 4 soon.Described stamp card loop bar 1 afterbody is provided with sealing structure 11 and with switch 12 Inflation inlet 13.Described dilating sacculus 3 is tightly connected with stamp card loop bar 1 head end open annular, ring stamp card loop bar 1 head end opening shape Become the dilating sacculus 3 sealed.It is long that described push rod 2 length relatively stabs card loop bar 1, in push rod 2 limit advances stamp card loop bar 1 After, the pushed bar of dilating sacculus 32 of stamp card loop bar 1 head end holds deformation energy and passes through endoscope-assistant surgery otch and insert under otch Gap.Described push rod 2 main body and head end bar cross section are less than stamp card loop bar 1 intracavity section, push rod 2 main body and head end bar Portion can insert stamp card loop bar 1 inner chamber and and stab the formation of card loop bar 1 inwall for inflating described dilating sacculus 3 or the hole of topping up Road.

The head end of described stamp card loop bar 1 arranges the dilating sacculus 3 of sealing and undertakes in the endoscope-assistant surgery at the positions such as posterior peritoneum Strut the effect of sacculus.At incision of skin Minimally Invasive Surgery otch, and after expanding the otch subcutaneous space that can insert dilating sacculus 3, The head end of stamp card loop bar 1 is inserted subcutaneous space together with dilating sacculus 3, opens switch 12, use syringe cooperation to fill valve 4 soon and lead to Overcharge QI KOU 13 and stamp card loop bar 1 inner chamber can insufflation gas quick to dilating sacculus 3 or liquid, push gap under skin incision open Soft tissue around, forms the space of laparoscopic surgery.Cut in order to avoid dilating sacculus 3 crimps the agglomerating skin being difficult to Wicresoft Mouthful, arrange push rod 2, before dilating sacculus 3 is inserted otch subcutaneous space, by push rod 2 limit at stamp card loop bar 1 inner chamber Advancing stamp card loop bar 1 intracavity, push rod 2 holds the dilating sacculus 3 of stamp card loop bar 1 head end, makes dilating sacculus 3 become long and narrow bar Shape profile, becomes light in inserting skin incision.In order to avoid the gas in dilating sacculus 3 or liquid are through stamp card loop bar 1 tail Running off in portion, arranges sealing structure 11 at stamp card loop bar 1 afterbody, seals structure 11 and includes the one-way sealing film of taper and duckbill, In laparoscope puncture outfit extremely common, be not described herein.The effect that described sealing structure 11 can also play is: even if pushing away The intracavity sending bar 2 to be nested with at stamp card loop bar 1 is not deviate from, and also can surround push rod 2 surrounding wall, in stoping dilating sacculus 3 Gas or liquid flow out through the gap of push rod 2 outer wall and stamp card loop bar 1 inwall.Its clinical meaning also resides in: work as surgical doctor Need to observe dilating sacculus 3 under video to elapse surrounding soft tissue's situation and avoid elapsing when excessively causing damage, it is only necessary to will be nested with Push rod 2 at stamp card loop bar 1 intracavity is extracted, and inserts endoscope-assistant surgery video heads.So, in the effect sealing structure 11 Under, the gas or the liquid that are filled with dilating sacculus 3 will not be through the bar portion outer wall of endoscope-assistant surgery video heads and stamp card loop bar 1 inwalls Gap is flowed out, and surgical doctor omnidistance can be observed dilating sacculus 3 and expands and slowly push the situation of surrounding soft tissue open, improves safety Property.Certainly, the premise of observation is that the cyst wall of dilating sacculus 3 uses the high transparency material that coefficient of elasticity is higher to make, around soft group The passage situation knitted can be observed by surgical doctor easily by transmission of video to external screen through high transmittance film.

The described effect filling valve 4 soon is to use syringe to connect inflation inlet 13 by filling valve 4 soon dilating sacculus 3 is filled with gas During body, it is not necessary to repeatedly syringe and inflation inlet 13 are departed from extraneous gas can being drawn into syringe and by syringe Air advance dilating sacculus 3, improve charging efficiency.When needing the gas in dilating sacculus 3 is exitted, by syringe with fast Filling valve 4 to depart from from inflation inlet 13, open switch 12, the gas in dilating sacculus 3 is under pressure by stamp card loop bar 1 inner chamber With inflation inlet 13 palate quick drain.

For the ease of operation, the propelling movement body of rod 21 tail end in push rod 2 arranges propelling movement handle 22.In order to reduce push rod 2 Latent destruction to dilating sacculus 3 or the infringement to soft tissue, can arrange, at push rod 2 head end, the end that quality is soft.Enter One step, temporary locking mechanism can be set at the afterbody junction of push rod 2 and stamp card loop bar 1, push rod 2 is inserted stamp Specific position temporary locking in card loop bar 1, belongs to conventional structure, the most no longer states.

As shown in Fig. 5, Fig. 6 and Fig. 7, described stamp card loop bar 1 head section intracavity diameter is big compared with posterior segment intracavity diameter, forms card Ring sets chamber 14, and meanwhile, dilating sacculus 3 oral area arranges the sacculus snap ring 31 of tubular, and dilating sacculus 3 oral area ring packing is connected to The outer wall of sacculus snap ring 31.External diameter after described sacculus snap ring 31 connects dilating sacculus 3 is set chamber 14 internal diameter and is mated with snap ring, ball The internal diameter of capsule snap ring 31 is identical with stamp card loop bar 1 posterior segment internal diameter, and it is short that the length of sacculus snap ring 31 sets chamber 14 compared with snap ring.Described Sacculus snap ring 31 can firmly be embedded in snap ring and set after bosom, chamber 14 makes to set in rear sacculus snap ring 31 inwall and stamp card loop bar 1 Section interior walls be smooth connects, and meanwhile, the snap ring of sacculus snap ring 31 front portion is set chamber 14 and encompassed dilating sacculus 3 cervical region formation loop bar capsule neck Chamber 15.Described loop bar capsule neck chamber 15 is the little horn-like structure in the mouth big end.

This is a kind of specific embodiments that dilating sacculus 3 is connected with stamp card loop bar 1.The cervical region of described dilating sacculus 3 is solid Surely the outer wall of sacculus snap ring 31 it is connected to, by sacculus snap ring 31 being set the snap ring of stamp card loop bar 1 head end being fixed on coupling Set deep, chamber 14 complete and stab being tightly connected of card loop bar 1.It is short that the length of sacculus snap ring 31 sets chamber 14 compared with snap ring, makes ball The capsule cervical region of capsule snap ring 31 is free and relatively-stationary encompasses the horn-like structure loop bar capsule little at the stamp card loop bar 1 head end mouth big end In neck chamber 15.The internal diameter of described sacculus snap ring 31 is identical with the internal diameter of stamp card loop bar 1 posterior segment inner chamber, makes sacculus snap ring 31 set Can link up smoothly with stamp card loop bar 1 posterior segment inner chamber after snap ring sets deep, chamber 14, make push rod 2 or endoscope-assistant surgery video Head and bar portion can smooth out turnover stamp card loop bar 1 inner chamber.

It should be noted that the material that described stamp card loop bar 1 and sacculus snap ring 31 all should use quality harder makes, preferably The plastics that bright degree is higher.This way it is possible to avoid the linking deformation of stamp card loop bar 1 and sacculus snap ring 31, it is ensured that junction Sealing.Meanwhile, transparent material can allow operator pass through to observe that stamp card loop bar 1 and sacculus snap ring 31 sidewall are observed Insert push rod 2 therein and be arranged on the length scale on push rod 2 surface.

After making the dilating sacculus 3 of above-mentioned stamp card loop bar 1 head end complete the formation operative space of the passage to surrounding tissue Make stamp card loop bar 1 to deviate to abandon, can be provided for taking off dilating sacculus 3 with stamp card loop bar 1 at described push rod 2 head end From sacculus release unit 5.Dilating sacculus 3 can be made to depart from stamp card loop bar 1 by sacculus release unit 5, so that stamp cutting ferrule Bar 1 then undertake the function of abdominal cavity puncture outfit, in follow-up endoscope-assistant surgery operation, insert chamber mirror hands by stamp card loop bar 1 inner chamber Art apparatus or screen equipment.

As shown in Fig. 8, Fig. 9 and Figure 10, described sacculus release unit 5 includes for by dilating sacculus 3 and sacculus snap ring 31 Cutter head 51 that cutting departs from, for action bars 52 that cutter head 51 is operated and in being arranged on push rod 2 embedding for activity The operating cavity 53 of cutter head 51 and action bars 52, the position of the corresponding cutter head 51 of described operating cavity 53 arranges side opening formation cutter head and goes out Entrance 54.Walk crosswise and run through cutter head 51 root and close on the position bottom cutter head gateway 54 and corresponding both sides, cutter head gateway 54 sidewall Arranging cradle head 55, described cutter head 51 can be with cradle head 55 as axis rotation.Described action bars 52 head end arranges fork-shaped knot The fork arm head 56 of structure, fork arm head 56 fork arm depression can accommodate cutter head 51.Walk crosswise and run through cutter head 51 root and relatively rotate joint 55 Offside and two fork arm heads 56 arrange passage joint 57.Can be by passage joint 57 and cradle head 55 during passage action bars 52 The tip making cutter head 51 is coordinated to stretch out operating cavity 53 or retraction operation chamber 53 by cutter head gateway 54.

When being embodied as, described operating cavity 53 runs through push rod 2 longitudinal axis and arranges, and the activity of described action bars 52 is embedded in operation In chamber 53, action bars 52 goes out the operating cavity 53 afterbody outlet of push rod 2 can arrange the convenient operation operating action bars 52 Handle.Described action bars 52 coordinates the cradle head 55 can be to cutter head 51 by the passage joint 57 being flexibly connected with cutter head 51 Position operates.Concrete operations are: under resting state, and action bars 52 is to cutter head 51 without active force, and what cutter head 51 was straight encompasses In operating cavity 53, any part of cutter head 51 all hides within cutter head gateway 54, and all sites is not gone out by cutter head Entrance 54 protrudes from the sidewall of push rod 2；Come in and go out when needing the cutter head that the tip cutting edge of cutter head 51 is exposed push rod 2 sidewall During mouth 54, along operating cavity 53 major axis forward operation bar 52, described action bars 52 major axis slight deformation is to the cutter head of push rod 2 sidewall Direction, gateway 54 offsets, and movable passage joint 57 is also to the skew advance of direction, cutter head gateway 54, at the band of action bars 52 Under action, the root of cutter head 51 rotates around cradle head 55, and the tip cutting edge of final cutter head 51 is then by cutter head gateway 54 Can prominent be exposed to out outside the cutter head gateway 54 of push rod 2 sidewall.And need to regain the cutter head being exposed to push rod 2 sidewall During cutter head 51 outside gateway 54, it is only necessary to retiring action bars 52 outside operating cavity 53, described action bars 52 major axis slightly becomes Within shape gradually recovers retraction operation chamber 53, under the drive of action bars 52, movable passage joint 57 is also to closing on operating cavity The oral area skew of 53, the root of cutter head 51 rotates around cradle head 55, and the tip cutting edge of final cutter head 51 returns to and straight Encompass among operating cavity 53, and be under cutter head gateway 54.

Further, in order to promote safety and the stability of operation, described action bars 52 goes out push rod 2 afterbody and arranges behaviour Making handle and locking mechanism, action bars 52 body of rod arranges telltale mark, and described telltale mark can push rod 2 relative to action bars 52 Position demarcate, the relative position of locking mechanism energy temporary locking action bars 52 and push rod 2.At some key position pair Action bars 52 enters the degree of depth temporary locking of operating cavity 53, it is to avoid during operation, action bars 52 enters the depth migration of operating cavity 53. Need emphasis to demarcate and the position of locking is: action bars 52 promotes the edge of a knife 51 to make the major axis of the edge of a knife 51 hang down with the major axis of push rod 2 Time straight, now the tip cutting edge of the edge of a knife 51 is sufficiently exposed to the side of action bars 52 just by the cutter head gateway 54 of push rod 2 Outside wall.

Further, more steady for the position making the edge of a knife 51 when the major axis of the edge of a knife 51 is vertical with the major axis of push rod 2 Fixed, described cutter head gateway 54 is closed on push rod 2 head end side and is provided with limit body 58, limits cutter head 51 and rotates along cradle head 55 Scope is spent for being 0 degree-90 with push rod 2 major axis away from limit body 58 side angulation.Under the position-limiting action of limit body 58, cutter head The slewing area of 51 is 90 degree to the maximum, and i.e. when the position of cutter head 51 is vertical with the major axis of push rod 2, cutter head 51 cannot be further Rotating forward, what cutter head 51 was stable is limited in the angle vertical with the major axis of push rod 2.When cutter head 51 offsets to greater angle During the stress of direction, under the effect of limit body 58, cutter head 51 is the most stable, and a bit skew will not occur.

As shown in figure 11, this figure illustrates when the major axis of the edge of a knife 51 is vertical with the major axis of push rod 2 edge of a knife 51 to loop bar Dilating sacculus 3 cervical region in capsule neck chamber 15 carries out the operation chart that cutting departs from.In order to make the edge of a knife 51 to dilating sacculus 3 cervical region Carry out cutting depart from time safety and reliability, when described cutter head 51 becomes an angle of 90 degrees with push rod 2 major axis, described push rod 2 transverse diameter A and Cutter head 51 stretch out length B of cutter head gateway 54 and more than horn-like loop bar capsule neck chamber 15 bottom lengths C, meanwhile, less than loudspeaker Shape loop bar capsule neck chamber 15 oral area length D.So, when needing operation cutter head 51 to dilating sacculus 3 neck in loop bar capsule neck chamber 15 When portion carries out cutting disengaging, it is only necessary to by the edge of a knife 51 vertically in the angle vertical with the major axis of push rod 2, then entirety is retired Push rod 2, that stretch out length B of cutter head gateway 54 due to push rod 2 transverse diameter A and cutter head 51 and A+B is in loop bar capsule neck chamber 15 Upper and lower opening C and D between, make cutter head 51 holding of push rod 2 head end dilating sacculus 3 cervical region in loop bar capsule neck chamber 15 a certain Position.When push rod 2 cannot continue to retire, cutter head 51 tightly hold cutting dilating sacculus 3 cervical region holding at loop bar capsule The rigid side wall in neck chamber 15.On the one hand the rigid side wall in loop bar capsule neck chamber 15 carries for cutter head 51 annular cutting dilating sacculus 3 cervical region Having supplied to support, on the other hand protection cutter head 51 can not cut through the rigid side wall in loop bar capsule neck chamber 15, it is to avoid accidentally injures surrounding soft tissue.

Need herein it is once more emphasized that: the afterbody junction of push rod 2 and stamp card loop bar 1 arranges temporary locking machine Structure, inserts the specific position temporary locking in stamp card loop bar 1 to push rod 2, and the position needing emphasis to lock includes: a, push rod 2 enter stamp card loop bar 1 intracavity to greatest extent time, now position locking meaning be that the pushed bar of dilating sacculus 32 holds deformation For long and narrow bar shaped profile, can insert in subcutaneous space easily by narrow and small Wicresoft's skin incision, convenient inflation further After retire surrounding tissue formed endoscope-assistant surgery space.B, described cutter head 51 are opened and and cutter head 51 vertical with the major axis of push rod 2 Tip edges just to wide portion's plane of the opening in the loop bar capsule neck chamber 15 of described horn profile time, now position locking meaning exist After latched position by operation action bars 52 open or close cutter head 51 time, cutter head 51 be in loop bar capsule neck chamber 15 protection it Under, the soft tissue of surrounding will not be damaged；And the sidewall in loop bar capsule neck chamber 15 will not hinder opening or closing of cutter head 51.C, described Cutter head 51 is opened and vertical with the major axis of push rod 2 and cutter head 51 tip edges has reached to cut dilating sacculus 3 cervical region completely During cyst wall, when the meaning of now position locking is now to rotate push rod 2, the tip edges of cutter head 51 can annular cutting dialysis Dilating sacculus 3 cervical region cyst wall makes dilating sacculus 3 depart from stamp card loop bar 1 from cervical region, is unlikely to the tip edges of cutter head 51 simultaneously Snap in loop bar capsule neck chamber 15 sacrifices consisting of an ox, a sheep and a pig, be unfavorable for cutting operation.Needing prompting, position locking now is not by push rod 2 Locked with stamp card loop bar 1, and be locked out push rod 2 and enter the degree of depth in stamp card loop bar 1, push rod 2 can not be moved along major axis level Dynamic, but can be that dilating sacculus 3 cervical region cyst wall is cut by axle center annular rotation along major axis.

And described action bars 52 goes out push rod 2 afterbody and need to arrange the position of locking mechanism and specifically include that a, described cutter head 51 Being completely under the plane of cutter head gateway 54, whole cutter head 51 all encompasses within operating cavity 53.Now position locking energy Cutter head 51 is avoided to open because of maloperation, when pushing dilating sacculus 3 to dilating sacculus 3 cyst wall cutting damage, when also avoiding other Icking tool head 51 maloperation is opened, and snapping in the sidewall in loop bar capsule neck chamber 15 affects subsequent operation and carry out.B, described cutter head 51 open and Time vertical with the major axis of push rod 2, next step operation now needing to carry out is push rod 2 along major axis is that axle center annular rotates and makes cutter Dilating sacculus 3 cervical region cyst wall is cut by the tip edges of 51.Now cutter head 51 can be strengthened in the position of locking cutter head 51 Cutting stability, it is to avoid affect cutting effect because cutter head 51 offsets during cutting.

As shown in figure 12, described valve 4 tail end that fills soon arranges the air inlet 41 that mates with syringe, described fills valve 4 head end soon The gas outlet 42 mated with stamp card loop bar 1 afterbody inflation inlet 13 is set.Close on described gas outlet 42 to arrange and fill check valve 43, gas soon Body can only discharge gas outlet 42 through the too fast check valve 43 that fills, it is impossible to reverse flow.It is positioned at air inlet 41 and gas outlet filling valve 4 soon Arranging the quick breather check valve 44 being in communication with the outside between 42 on sidewall, gas can only enter through quick breather check valve 44 soon Fill valve 4 intracavity, it is impossible to reverse flow.

During use, the described gas outlet 42 filling valve 4 head end soon is connected with stamp card loop bar 1 afterbody inflation inlet 13, and filling The syringe of gas is connected to fill soon on the air inlet 41 of valve 4 tail end.Pull syringe stem plug,

In syringe, pressure is negative pressure, fills valve 4 intracavity gas pressure soon and is more than syringe pressure, fills valve 4 chamber air soon In entrance syringe；Filling valve 4 intracavity gas pressure soon and become negative pressure, external air pressure is more than filling valve 4 cavity pressure soon, extraneous Air enters and fills valve 4 intracavity soon, and then enters in syringe cylinder；Now under the effect filling check valve 43 one-way flow soon, expand Although gas pressure is more than filling valve 4 cavity pressure soon in a sacculus 3, but gas cannot flow, and in dilating sacculus 3, gas can not flow Enter to fill soon valve 4 intracavity.When gas abundance in syringe, during propelling extrusion syringe stem plug, syringe inner air pressure is significantly Increase, because air is identical with filling valve 4 intracavity connection pressure soon in syringe, fills valve 4 intracavity gas pressure soon and be also significantly increased, when Fill valve 4 intracavity gas pressure soon to increase more than in dilating sacculus 3 during gas pressure, fill check valve 43 soon open, empty in syringe Gas enters in dilating sacculus 3 through the too fast check valve 43 that fills；Now, under quick breather check valve 44 one-way flow effect, injection Although device inner air pressure is more than external air pressure, but in syringe, air can not flow via quick breather check valve 44 Lose.

As shown in the i.e. Figure 14 of Figure 13, described dilating sacculus 3 ring shaped movable buries annular seal wire 32 underground, sets on annular seal wire 32 Put stretch ring 33 and tighten up dilating sacculus 3 oral area for tightening up annular seal wire 32 by tractive.It should be noted that annular seal wire 32 Activity is embedded in the cutting part of dilating sacculus 3 and closes on the side at the bottom of capsule, after cutter head 51 cutting departs from dilating sacculus 3, and annular The annular oral area of the movable embedding remaining blister cavities of seal wire 32, forms the lasso that can tighten up remaining blister cavities oral area, and leads in annular The stretch ring 33 arranged on silk 32 then facilitates surgical doctor to tighten up the oral area of remaining blister cavities.

Time specifically used, after the described cut disengaging of dilating sacculus 3, it be retained in endoscope-assistant surgery space, work as specimens from pri After having cut, can be inserted in remaining blister cavities by the annular oral area of remaining blister cavities, and then oral area is arranged annular seal wire 32 And the remaining blister cavities of stretch ring 33 takes out bag as specimens from pri and uses, specimen is facilitated to take out.Certainly, specimen taking-out bag now Space is less, is only used for specimen or the taking-up of calculus of most small volume, need to change bigger specimen and take when specimen is bigger Output, and operative incision is extended, specimens from pri could be taken out.

Complete use flow process of the present utility model is:

1, doing Minimally Invasive Surgery otch in suitable position, surgical doctor finger expands gap under otch.

2, push rod 2 is inserted stamp card loop bar 1 position, deep and locks, the dilating sacculus 3 of long and narrow profile is passed through Wicresoft Operative incision inserts gap under otch.

3, push rod of loosening 2 is also released, and changes endoscope-assistant surgery video heads.

4, valve 4 is filled soon, quickly to dilating sacculus 3 under the observation of endoscope-assistant surgery video heads in stamp card loop bar 1 afterbody connection Inflation, elapses surrounding soft tissue, forms endoscope-assistant surgery space.

5, exit endoscope-assistant surgery video heads, release dilating sacculus 3 portion gas, again push rod 2 is slowly inserted stamp card In loop bar 1.Cutter head 51, and lock operation bar 52 is opened when cutter head 51 opens latched position when push rod 2 arrives.

6, fixing stamp card loop bar 1, slowly retires push rod 2, when push rod 2 arrive cutter head 51 cut latched position time, lock Determining push rod 2 degree of depth, annular rotates push rod 2, and dilating sacculus 3 cervical region annular is cut by cutter head 51, and remaining dilating sacculus 3 takes off Fall in endoscope-assistant surgery space.

7, fixing stamp card loop bar 1, is slowly advanced push rod 2 again, arrives again at when cutter head 51 opens latched position and regains Cutter head 51, and lock operation bar 52, exit push rod 2 then.

8, carry out endoscope-assistant surgery operation by stamp card loop bar 1, complete specimen cutting and dissociate and hemostasis.Now remaining expansion Sacculus 3 is retained in endoscope-assistant surgery space.

When 9, needing to take out specimen, specimens from pri being loaded in the blister cavities of remaining dilating sacculus 3, clamping stretch ring 33 is received Tight annular seal wire 32, remaining dilating sacculus 3 is tightened up Guan Bi at blister cavities opening by annular seal wire 32, continues clamping stretch ring 33 take out specimen by stamp card loop bar 1 tract.

10, operation terminates, and takes out stamp card loop bar 1 suture operation otch.

When not using observation dilating sacculus 3 expansion of endoscope-assistant surgery video heads to retire soft tissue formation endoscope-assistant surgery space, Above-mentioned process simplification is:

1, doing Minimally Invasive Surgery otch in suitable position, surgical doctor finger expands gap under otch.

2, push rod 2 is inserted stamp card loop bar 1 position, deep and locks, the dilating sacculus 3 of long and narrow profile is passed through Wicresoft Operative incision inserts gap under otch.

3, loosen push rod 2, release dilating sacculus 3 portion gas, slowly retire push rod 2 and put, when push rod 2 arrives cutter 51 open cutter head 51, and lock operation bar 52 when opening latched position.

4, continue slowly retire push rod 2, when push rod 2 arrive cutter head 51 cut latched position time, locking push rod 2 deep Degree, annular rotates push rod 2, and dilating sacculus 3 cervical region annular is cut by cutter head 51, and remaining dilating sacculus 3 comes off at chamber mirror hands In art space.

5, fixing stamp card loop bar 1, is slowly advanced push rod 2 again, arrives again at when cutter head 51 opens latched position and regains Cutter head 51, and lock operation bar 52, exit push rod 2 then.

6, carry out endoscope-assistant surgery operation by stamp card loop bar 1, complete specimen cutting and dissociate and hemostasis.Now remaining expansion Sacculus 3 is retained in endoscope-assistant surgery space.

When 7, needing to take out specimen, specimens from pri being loaded in the blister cavities of remaining dilating sacculus 3, clamping stretch ring 33 is received Tight annular seal wire 32, remaining dilating sacculus 3 is tightened up Guan Bi at blister cavities opening by annular seal wire 32, continues clamping stretch ring 33 take out specimen by stamp card loop bar 1 tract.

8, operation terminates, and takes out stamp card loop bar 1 suture operation otch.

In a word: this utility model can undertake in early days the effect of operative space dilator, safely and effectively expands operative space, and Can insert after endoscope-assistant surgery photographic head observes inflation and organize passage state.After operative space is set up, operation departs from dilating sacculus, Stamp card loop bar undertakes abdominal cavity puncture outfit and is continuing with, and the dilating sacculus departed from can take out set as specimen and use, simple in construction, Low cost, safe and reliable.

Claims (9)

1. a stamp card balloon dilatation catheter, including expanding passage and cut for inserting under endoscope-assistant surgery otch gap inflation or topping up Under mouthful, soft tissue forms the dilating sacculus (3) in endoscope-assistant surgery space, is used for forming hole road implantation surgery apparatus in endoscope-assistant surgery And formed Kong Lu to dilating sacculus (3) inflation or stamp card loop bar (1) of topping up, be used for assisting dilating sacculus (3) by chamber mirror hands Art otch is inserted the push rod (2) in gap under otch smoothly and is used for coordinating syringe in dilating sacculus (3) fast aeration Blank pipe shape fill valve (4) soon, described stamp card loop bar (1) afterbody be provided with seal structure (11) and with switch (12) inflation inlet (13), it is characterized in that: described dilating sacculus (3) is tightly connected with stamp card loop bar (1) head end open annular, ring stamp card loop bar (1) Head end opening forms the dilating sacculus (3) sealed；It is long that described push rod (2) length relatively stabs card loop bar (1), when push rod (2) pole After limit advances in stamp card loop bar (1), dilating sacculus (3) the pushed bar (2) of stamp card loop bar (1) head end holds deformation energy and leads to smoothly Cross endoscope-assistant surgery otch and insert gap under otch；Described push rod (2) main body and head end bar cross section are less than stamp card loop bar (1) Stamp card loop bar (1) inner chamber and stamp card loop bar (1) inwall formation can be inserted by intracavity section, push rod (2) main body and head end bar portion For to described dilating sacculus (3) inflation or the Kong Lu of topping up.

The most according to claim 1, stamp card balloon dilatation catheter, is characterized in that: described stamp card loop bar (1) head section intracavity diameter is relatively Posterior segment intracavity diameter is big, forms snap ring and sets chamber (14), and meanwhile, dilating sacculus (3) oral area arranges the sacculus snap ring of tubular (31), dilating sacculus (3) oral area ring packing is connected to the outer wall of sacculus snap ring (31)；Described sacculus snap ring (31) connects expansion External diameter after sacculus (3) is set chamber (14) internal diameter and is mated with snap ring, the internal diameter of sacculus snap ring (31) and stamp card loop bar (1) posterior segment Internal diameter is identical, and it is short that the length relatively snap ring of sacculus snap ring (31) sets chamber (14)；Described sacculus snap ring (31) can firmly be embedded in card Ring is set chamber (14) bosom and is made to set rear sacculus snap ring (31) inwall and is connected, together with stamp card loop bar (1) posterior segment interior walls be smooth Time, the snap ring of sacculus snap ring (31) front portion is set chamber (14) and is encompassed dilating sacculus (3) cervical region formation loop bar capsule neck chamber (15)；Described Loop bar capsule neck chamber (15) is the little horn-like structure in the mouth big end.

The most according to claim 1, stamp card balloon dilatation catheter, is characterized in that: described push rod (2) head end is provided for expanding Open the sacculus release unit (5) that sacculus (3) departs from stamp card loop bar (1).

4., according to stabbing card balloon dilatation catheter described in claim 2 or claim 3, it is characterized in that: described sacculus release unit (5) Including for dilating sacculus (3) and sacculus snap ring (31) being cut the cutter head (51) of disengaging, for cutter head (51) is operated Action bars (52) and be arranged in push rod (2) for movable embedding cutter head (51) and the operating cavity (53) of action bars (52), The position of the corresponding cutter head (51) of described operating cavity (53) arranges side opening and forms cutter head gateway (54)；Walk crosswise and run through cutter head (51) root closes on the position bottom cutter head gateway (54) and corresponding cutter head gateway (54) both sides sidewall arranges cradle head (55), described cutter head (51) can be with cradle head (55) as axis rotation；Described action bars (52) head end arranges fork configuration Fork arm head (56), fork arm head (56) fork arm depression can accommodate cutter head (51)；Walk crosswise and run through cutter head (51) root and relatively rotate joint (55) offside and two fork arm heads (56) arrange passage joint (57)；Can be by passage joint (57) during passage action bars (52) And the cooperation of cradle head (55) makes the tip of cutter head (51) stretch out operating cavity (53) or the behaviour that retracts by cutter head gateway (54) Make chamber (53).

The most according to claim 4, stamp card balloon dilatation catheter, is characterized in that: described action bars (52) goes out push rod (2) afterbody Arranging operation handle and locking mechanism, action bars (52) body of rod arranges telltale mark, and described telltale mark can be to action bars (52) The position of push rod (2) relatively is demarcated, locking mechanism energy temporary locking action bars (52) and the phase para-position of push rod (2) Put.

The most according to claim 4, stamp card balloon dilatation catheter, is characterized in that: described cutter head gateway (54) closes on push rod (2) head end side is provided with limit body (58), limits cutter head (51) and along cradle head (55) slewing area is and push rod (2) major axis It is 0 degree of-90 degree away from limit body (58) side angulation.

The most according to claim 4, stamp card balloon dilatation catheter, is characterized in that: when described cutter head (51) and push rod (2) major axis When becoming an angle of 90 degrees, described push rod (2) transverse diameter (A) and cutter head (51) stretch out the length (B) of cutter head gateway (54) and more than loudspeaker Shape loop bar capsule neck chamber (15) bottom lengths (C), meanwhile, less than horn-like loop bar capsule neck chamber (15) oral area length (D).

The most according to claim 1, stamp card balloon dilatation catheter, is characterized in that: described valve (4) tail end that fills soon is arranged and syringe The air inlet (41) of coupling, described valve (4) head end that fills soon arranges the gas outlet mated with stamp card loop bar (1) afterbody inflation inlet (13) (42)；Closing on described gas outlet (42) to arrange and fill check valve (43) soon, gas can only be given vent to anger through the too fast check valve (43) that fills Mouth (42), it is impossible to reverse flow；It is positioned between air inlet (41) and gas outlet (42) on sidewall arranges with extraneous filling valve (4) soon The quick breather check valve (44) of connection, gas can only enter through quick breather check valve (44) and fill valve (4) intracavity soon, it is impossible to inverse To flowing.

The most according to claim 1, stamp card balloon dilatation catheter, is characterized in that: described dilating sacculus (3) ring shaped movable buries ring underground Shape seal wire (32), arranges stretch ring (33) in annular seal wire (32) and tightens up expansion for tightening up annular seal wire (32) by tractive Sacculus (3) oral area.