CN208958277U - A kind of valve mounting mechanism for laparoscope puncture outfit - Google Patents

Abstract

The utility model relates to a kind of valve mounting mechanisms for laparoscope puncture outfit, including puncture cannula seat and gas injection valve, there are two recessed portions on the circumferential surface of the puncture cannula seat, gas injection valve is installed on the outside of one of recessed portion, gas injection valve includes valve body, spool and air injection pipe, air injection pipe is connect with the mounting cylinder in recessed portion, and the angle between air injection pipe and mounting cylinder is 65-75 degree；Valve body is cylindrical shape, with being mounted in air injection pipe in left and right perforation direction；The spool that can be circumferentially rotated to which air injection pipe to be connected to or block is equipped in valve body；The puncture cannula seat, valve body and air injection pipe are an integral structure.Valve is designed as half in the valve mounting mechanism of the utility model and hides design, valve occupies little space, and the differentiation identity of the open and-shut mode of air valve is high, is used conveniently and safely.

Description

A kind of valve mounting mechanism for laparoscope puncture outfit

Technical field

The utility model belongs to the field of medical instrument technology, and in particular to a kind of valve installation for laparoscope puncture outfit Mechanism.

Background technique

In the operation of minimally invasive medical-therapeutic treatment of human body, once finding illness in body, need to perform the operation or cut off, in surgical procedure In, it is necessary first to application is puncture outfit, and puncture outfit is a kind of puncture stomach wall and enters lumenal passageway for other surgical instruments Surgical instrument belongs to a kind of Minimally Invasive Surgery instrument.Puncture outfit generally includes the sleeve group for entering channel as other surgical instruments Part and through the puncturing lever in the sleeve assembly.Firstly, first cutting skin epidermis with scalpel, so to penetrate skin Skin is penetrated using puncturing lever afterwards and enters body cavity together with sleeve assembly, then extracts puncturing lever, sleeve assembly out As introducing intraperitoneal by various instruments and tool and provide the channel that aeration room stomach wall is increased to above organ

The puncture outfit air valve of the prior art is made of gas injection part and choke part, and gas injection interface is generally stationary state, It is passed in and out by the left rotation and right rotation of choke part or sliding to control the gas of puncture outfit.On the one hand, when rotating left and right choke part, behaviour To make arduously, doctor's experience is bad, and it is likely to result in puncture outfit and is rotated in patient's body, cause unnecessary pain to patient, and Cause puncture outfit to rotate patient wound at because rotating left and right choke part, be likely to result in puncture outfit casing tube and patient wound it Between gas leakage, influence the stabilization of pneumoperitoneum, thus influence operation go on smoothly；On the other hand, the gas injection part of the prior art is consolidated Fixed design can occupy certain clinical manipulation space in the course of surgery, and the differentiation identity of the open and-shut mode of air valve is poor, There are rooms for improvement.

Summary of the invention

The purpose of this utility model is the design for the prior art, provides a kind of valve peace for laparoscope puncture outfit Mounting mechanism.Valve is designed as half in the valve mounting mechanism of the utility model and hides design, valve occupies little space, and air valve Open and-shut mode differentiation identity it is high, be used conveniently and safely.

To achieve the above objectives, the present invention adopts the following technical solutions:

A kind of valve mounting mechanism for laparoscope puncture outfit, including puncture cannula seat and gas injection valve, the puncture set There are two recessed portions on the circumferential surface of tube socket, gas injection valve is installed on the outside of one of recessed portion, the gas injection valve include valve body, Spool and air injection pipe, the air injection pipe are connect with the mounting cylinder in recessed portion, and the angle between air injection pipe and mounting cylinder is 65- 75 degree；The valve body is cylindrical shape, with being mounted in air injection pipe in left and right perforation direction；Be equipped in valve body can circumferentially rotate from And the spool that air injection pipe is connected to or is blocked；The puncture cannula seat, valve body and air injection pipe are an integral structure.

Further, the air injection pipe is mounted on the lower section of recessed portion, the region between the valve body upside and recessed portion It is also equipped with floor, the floor, puncture cannula seat, valve body and air injection pipe are also an integral structure.

Further, the spool includes circumferentially rotating setting in the intracorporal valve rod of valve, and one end of valve rod, which is equipped with, is located at valve The shift bar of external side, the other end is oblique cone end；The venthole that can extend radially through valve rod is equipped in the middle part of valve rod.

Further, the circumferential position-limit mechanism that valve rod circumferentially rotates can be limited by being equipped between the valve rod and valve body；Institute Stating circumferential position-limit mechanism includes the arc notch that valve end is arranged in, and valve rod is equipped with corresponding with arc notch and works as valve rod When circumferentially rotating can respectively with arc notch end against arc-shaped limit block.

Further, the centre of recessed portion, the venthole of the valve rod and the gas injection port of air injection pipe is arranged in the floor When connection, the shift bar is parallel with air injection pipe；When the venthole of the valve rod and the gas injection port of air injection pipe block, the switch Handle is vertical with air injection pipe, and shift bar is higher by the recessed portion 1-2cm of puncture cannula seat.

Further, slip preventing fringe is additionally provided on the lateral wall of the shift bar.

Further, it is additionally provided with Needle localization guide cover on the puncture cannula seat, is gone back in the Needle localization guide cover Equipped with limiting slot, the opposite side of the gas injection valve is arranged in the limiting slot.

Further, the Needle localization guide cover is equipped with puncture needle, the puncture needle include puncture needle seal cap and Shank is punctured, the two sides of the puncture needle seal cap also are provided with the flat horizontal surface of recess, and the puncture shank is equipped with locating piece, institute Locating piece is stated to set with the concave part position of puncture cannula seat in corresponding up and down by installing locating slot, positioning the flat horizontal surface It sets.

Beneficial effect

Air injection pipe inclination is provided with to the recessed portion of puncture cannula seat, i.e., effectively in the valve mounting mechanism of the utility model The occupied space of valve is saved, and valve is designed as half hiding structure, needs doctor is conscious to go to open or close Valve reduces the probability of faulty operation.

Floor has also been devised in the valve mounting mechanism of the utility model, not only increases between valve and puncture cannula seat Connective stability, also provide the support of effective active force for operation by human hand, greatly reduce and punctured in switch operating process Shaking of the casing seat in wound reduces patient's pain.

Valve body or so designs in the valve mounting mechanism of the utility model, corresponding valve rod in the open state upward, Parallel with air injection pipe when closed state, valve switch state difference degree is big, and identity is high, is used conveniently and safely.

Detailed description of the invention

Fig. 1 is the overall structure diagram of the Mini-type puncture outfit of the utility model；

Fig. 2 is the schematic diagram of the section structure of the Mini-type puncture outfit of the utility model；

Fig. 3 is the configuration schematic diagram of the Mini-type puncture outfit of the utility model；

Fig. 4 is the structural schematic diagram of the puncture cannula of the Mini-type puncture outfit of the utility model；

Fig. 5 is the configuration schematic diagram of the puncture cannula of the Mini-type puncture outfit of the utility model；

Fig. 6 is the puncture cannula seat interior profile structural schematic diagram of the Mini-type puncture outfit of the utility model；

Fig. 7 is the schematic diagram of the section structure of the seal assembly of the Mini-type puncture outfit of the utility model；

Fig. 8 is the configuration schematic diagram of the seal assembly of the Mini-type puncture outfit of the utility model；

Fig. 9 is the overall structure diagram of the first sealing valve of the Mini-type puncture outfit of the utility model；

Figure 10 is the positive the schematic diagram of the section structure of the first sealing valve of the Mini-type puncture outfit of the utility model；

Figure 11 is the reversed profile structural schematic diagram of the first sealing valve of the Mini-type puncture outfit of the utility model；

Figure 12 is the schematic diagram of the section structure of the second sealing valve of the Mini-type puncture outfit of the utility model；

Figure 13 is the positive structure schematic of the puncture cannula seat of the Mini-type puncture outfit of the utility model；

Figure 14 is the inner face structural schematic diagram of the Needle localization guide cover of the Mini-type puncture outfit of the utility model；

Figure 15 is the positive structure schematic of the Needle localization guide cover of the Mini-type puncture outfit of the utility model；

Figure 16 is the reverse structure schematic of the puncture cannula seat of the Mini-type puncture outfit of the utility model；

Figure 17 is the structural schematic diagram of the puncture needle of the Mini-type puncture outfit of the utility model；

Figure 18 is that the puncture shank of the Mini-type puncture outfit of the utility model and the connection structure amplification of puncture needle seal cap are shown It is intended to；

Figure 19 is the structure enlargement diagram of the puncture needle bar frame of the Mini-type puncture outfit of the utility model；

Figure 20 is the structure enlargement diagram of the puncture needle seal cap of the Mini-type puncture outfit of the utility model；

Figure 21 is the structural schematic diagram of the gas injection valve of the Mini-type puncture outfit of the utility model；

Figure 22 is the stem structure schematic diagram of the gas injection valve of the Mini-type puncture outfit of the utility model；

Wherein, 1- puncture cannula body, 11- puncture cannula seat, 111- mounting cylinder, 112- recessed portion, 113- floor, 114- One locking slot, 115- locking elastic slice, the second locking slot of 116-, 12- casing, 2- puncture needle, 21- puncture needle sealing cover, 211- are flat Plane, 212- arcwall face, 213- burr, 214- locating slot, 215- grafting block, 216- clamping groove, 22- puncture shank, 221- bar Body, 222- puncture needle bar frame, 223- puncture conehead, 224- limited block, 225- positioning column, 226- clamping block, 227- inserting groove, 3- gas injection valve, 31- air injection pipe, 32- valve body, 321- arc notch, 33- valve rod, 331- arc-shaped limit block, the tapered end 332-, 34- shift bar, 341- slip preventing fringe, 35- venthole, 4- seal assembly, the first sealing valve of 41- (cup body sealing valve), 411- glasss Bottom, 412- cup body sealing valve side wall, 413- pleated portions, 414- puncture hole, 415- guide channel, the second sealing valve of 42-, 421- peace Fill ring, the second groove of 422-, 43- seal closure, 5- Needle localization guide cover, 51- limiting slot, 52- clamping cylinder, the first locking of 53- Boss, 54- the second locking boss, 55- supporting table, 56- petal slot.

Specific embodiment

The invention will be further elucidated with reference to specific embodiments.It should be understood that these embodiments are merely to illustrate this hair It is bright rather than limit the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, art technology Personnel can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited Fixed range.

In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower", The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand For limitations of the present invention.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection of two components interiors.For the ordinary skill in the art, on being understood by concrete condition State the concrete meaning of term in the present invention.

It as shown in figures 1-6, is the Mini-type puncture outfit of the utility model, including puncture cannula and puncture needle, puncture cannula It is interior it is intracavitary seal assembly 4 is installed, puncture cannula is equipped with the channel worn for puncture needle on vertical center, and it is logical to be denoted as puncture Road, in use, puncture needle 2 is passed through in puncture channel insertion puncture cannula and stretched out from the tail end of puncture cannula；Puncture cannula seat Side wall on gas injection valve 3 is installed and the setting of gas injection valve 3 and puncture cannula is integrated, will pass through puncture outfit to internal gas supply, Keep the presence of pneumoperitoneum.

Puncture cannula further includes puncture cannula body 1 and Needle localization guide cover 5, and puncture cannula body 1 includes puncture cannula seat 11 and casing 12, Needle localization guide cover 5 be mounted on the top of puncture cannula seat 11, casing 12 is mounted on puncture cannula seat 11 Lower section；The outer wall of casing 12 is equipped with casing annular line, and the purpose by the way that annular line is arranged is to increase the friction of casing and stomach wall Power avoids being extruded abdomen in abdominal cavity gas pressure effect setting of casing, influences operation and carry out.

It is that the seal assembly 4 of the utility model is mounted on Needle localization guide cover 5 and puncture cannula as shown in attached drawing 7-8 Formed interior intracavitary between seat 11, seal assembly 4 includes the first sealing valve (cup body sealing valve) 41, second sealing valve 42 and close Sealing cover 43, the second sealing valve 42 are correspondingly connected with the mounting cylinder 111 in puncture outfit pedestal, the top installation of the second sealing valve 42 There is the first sealing valve 41, the top of the first sealing valve 41 is equipped with seal closure 43, and the top of seal closure 43 is Needle localization guiding Lid 5, Needle localization guide cover 5 connect the seal assembly compressed in it with puncture cannula seat 11.First sealing valve 41 is by elasticity Cup body sealing valve made of material, the second sealing valve 42 are duckbill valve made of elastic material, and the top of duckbill valve is mounting ring 421, in the first groove 431 of 43 lower section of the side wall embedding sealing cover of cup body sealing valve 41, the bottom of a cup portion of cup body sealing valve and peace The upper bottom surface seamless connection of ring 421 is filled, upper bottom surface and the clamping cylinder 52 in Needle localization guide cover 5 of seal closure 43 closely connect Touching, side wall 412 and the groove in seal closure 43 of cup body sealing valve are correspondingly connected with.

Installation between seal assembly in the utility model and puncture cannula seat is all made of the fit system of snap-fit, Stable connection is secured, and without welding manner in the prior art etc., technique is simpler, is also more energy-saving and environmentally friendly.

In addition, the groove of the seal closure 43 of the utility model limits the side wall of cup body sealing valve in it, cup body sealing valve Removable degree it is small, seal closure 43 in the utility model functions as the gasket for increasing lubrication, prevents upper cover 5 There is big friction between the first sealing valve 41 when rotation lock, causes 41 Radial resistant force of the first sealing valve excessive and become Shape guarantees choke effect.In addition, cup body sealing valve is made of hard plastic, it is that cup body sealing valve flexible protects heavily fortified point Hard protection shell, avoids cup body sealing valve from being deformed, influences sealing effect.

As shown in figure 12, the lower section of mounting ring 421 is equipped with the be correspondingly connected with the mounting cylinder 111 in puncture outfit pedestal 11 The side wall of two grooves 422,422 outside of the second groove is corresponding with the sidewall locations of cup body sealing valve 41, and width is equal；The two position Correspondence can be with so that the sealing effect is better.

It as shown in figs. 9-11, is first sealing valve 41 of the utility model, the first sealing valve 41 is made of elastic material Cup body sealing valve, 411 center of bottom of a cup of the cup body sealing valve is provided with puncture hole 414, is additionally provided on the bottom surface of bottom of a cup 411 Pleated portions 413, the opening direction of fold is contrary with the opening direction of cup body sealing valve 41 in pleated portions 413.This is practical new First sealing valve of type is specially adapted for the surgical instrument of 5mm, and the diameter of puncture hole is 4.7-4.9mm, works as surgical instrument After being inserted into puncture hole, the level of stretch of the bottom of a cup bottom surface between pleated portions and puncture hole increases, so that the hole of puncture hole Diameter adapts to expansion, so that surgical instrument can be close to by forming interference connection, meanwhile, under the bottom of a cup between pleated portions and puncture hole The bevel structure design of bottom surface can also make the air in puncture outfit casing tube pedestal oppress inclined-plane holding surgical instrument, form self-sealing Structure also further enhances the sealing effect of puncture hole and surgical instrument；Meanwhile when surgical instrument is shaken, bottom of a cup Pleated portions can deform, and puncture hole can be close to surgical instrument and gas leakage does not occur, to maintain relatively good dynamic sealing Effect.

The height ratio of 411 bottom surface of height Yu bottom of a cup of fold is 1:2-4, pleat in preferred pleated portions 413 in pleated portions 413 The height of wrinkle and the height ratio of bottom of a cup bottom surface are 1:3.Pleated portions are not that the purpose for occupying entire bottom of a cup bottom surface is to control and wear The level of stretch of bottom of a cup bottom surface between pricker hole and pleated portions and puncture hole, prevents deformation extent excessive, damages sealing element, Influence service life.

The purpose that the opening direction of fold is contrary with the opening direction of cup body sealing valve 41 in pleated portions 413, which is arranged, is The fold inclined-plane of the direction has the function of compression cup body bottom surface under the gas effect in puncture cannula seat, makes cup body sealing valve 41 is closer with the contact of seal closure 43, and sealing effect is more preferable.The outer of pleated portions is corresponding with the inner wall of the mounting ring, guarantees Surgical instrument is in the flexibility dynamically used.

The guide channel 415 of truncated cone-shaped is provided on the bottom of a cup inner bottom surface of 414 extension of puncture hole.The mesh of guide channel 415 is set Be first is that guidance surgical instrument rapidly enter puncture hole, be on the other hand to be greater than the corresponding section thickness in the place of guide channel The section thickness of puncture hole can prevent puncture hole from turning up in surgical instrument extraction.The center of seal closure is provided with and leads The corresponding through-hole of approaching channel upper bottom surface, the i.e. bottom surface of the first sealing valve are supported by the bottom surface of seal closure, when extracting surgical instrument out The puncture hole of the first sealing valve can be further prevented to turn up.

It include 2 shape identical corrugations in pleated portions 413.When fold number in pleated portions 413 is 2, that is, it can guarantee Puncture hole generates certain elastic deformation, and can be effectively controlled deformation degree, and using effect is best.

The diameter ratio of length of the pleated portions 413 away from puncture needle hole wall and puncture hole 414 is 3:4-5.Pleated portions are away from puncture The length needs of pin hole wall are well-designed, if length of the pleated portions away from puncture needle hole wall is excessive, influences surgical instrument and puncturing Flexibility in use in pin hole；If length of the pleated portions away from puncture needle hole wall is too small, the deformation extent of puncture hole is small, is unfavorable for Sealing.

The elastic material for preparing the first sealing valve and the second sealing valve is flexible medical rubber.Including but not limited to: medical Silica gel, medical grade rubber, medical polyurethane, medical latex and their combination, seal closure are made of rigid plastics, including but not It is limited to: pp.

The side wall 412 of cup body sealing valve is vertical with bottom of a cup 411 to be connect, and the sidewall width of cup body sealing valve is bottom of a cup width 3-5 times.The sidewall width of cup body sealing valve is set much larger than bottom of a cup width, is the intensity in order to guarantee cup body sealing valve side wall, It is set to be not likely to produce deformation in the groove of sealing cover.Dislocation is not easily led under external force, cup sidewalls are not easy with cup body Tearing, disengaging gas is smooth, and the extraction moment of puncturing lever takes little effort, and extraction difficulty is small.

It is the bindiny mechanism between puncture cannula seat and Needle localization guide cover as shown in attached drawing 13-16, including punctures set Tube socket 11 and the Needle localization guide cover 5 being installed on it, puncture cannula seat 11 are equipped with the first locking slot 114, and Needle localization is led It is equipped with corresponding first locking boss 53 to lid 5, a side of the first locking slot 114 is locking elastic slice 115, the first locking After boss 53 is forced down in first locking slot of the locking slide-in of elastic slice 115 114 by rotation, locking elastic slice 115 is bounced the first locking Boss 53 is clamped in the first locking slot 114.First locking slot 114 is specially L-type hollow slots, is provided with puncture cannula seat 11 The seat on top is along upper, and wherein the short side part of L-type hollow slots is located at the side of locking elastic slice 115, as the first locking boss 53 Card-tight part, the long leg quartiles of L-type hollow slots provides sky in the lower section of locking elastic slice 115, for forcing down for elastic slice 115 of locking Between.Locking elastic slice 115 in the application is made of medical plastic (pp), and the cooperation with L-type hollow slots below has one Fixed deformability, in Needle localization guide cover 5 when being mounted on puncture cannula seat 11, the first locking boss 53 rotates first The long leg partial pressure for squeezing locking bullet towards L-type hollow slots is low, and the first locking boss 53 is allow to enter the short leg of L-type hollow slots Point, the pico- rebound upwards of locking elastic slice 115 of extruding is released at this time, so that the first locking boss 53 is clamped on the first locking slot In 114.The special designing that elastic slice 115 is locked in the application, after screwing in the first locking boss 53 in first locking slot 114 just It can not reversely rotate, it is possible to prevente effectively from accidentally touching the operation that 5 whiz of Needle localization guide cover is gone out to puncture cannula seat 11, more protect Demonstrate,prove the safety of puncture outfit use process.

Further, the both ends height for locking elastic slice 115 is different, wherein the locking elastic slice of 53 side of the first locking of clamping boss 115 height are greater than 115 height of locking elastic slice of opposite side.The design keeps the snap action for locking elastic slice 115 more preferable.

Further, the seat on 11 top of puncture cannula seat is also provided with the second locking slot 116, Needle localization guiding along wall Lid 5 is equipped with corresponding second locking boss 54, and the second locking boss 54 slides into clamping in the second locking slot 116 by rotation It is fixed.Second locking slot 116 is L-type groove, and upward, closed end is towards 11 top of puncture cannula seat for the open end of L-type groove The circumferential direction on seat edge.The design of the second locking slot 116 and the first locking slot 114 in the application is that the two is allowed to cooperate , after the second locking platform is locked at the second locking slot 116, the first locking platform is just locked in the first locking slot 114, and is guaranteed Needle localization guide cover 5 can not reversely rotate, to avoid the second locking platform 54 from screwing out out of second locking slot 116, and second Axial restraint may be implemented in locking slot 116, it is ensured that the nothing under the hyperbar in puncture cannula seat 11 of Needle localization guide cover 5 Method collapses out from puncture cannula seat 11.Therefore, the second level locking device of the application can further guarantee Needle localization guide cover 5 In the mounting stability of puncture cannula seat 11 and the sealing effect of puncture outfit.

Further, the number of the second locking slot 116 is two, and two the second locking slots 116 are evenly distributed on puncture cannula Seat 11 tops seat circumferentially on.In two the second locking slots 116, one of them second locking slot 116 and the first locking slot 114 close to and the closed end of second locking slot 116 is towards 114 side of the first locking slot.This locking mode avoids commonly Ultrasonic bonding and adhesive means reduce production cost to simplify assembly.

Further, the center of Needle localization guide cover 5 is equipped with clamping cylinder 52, and the outside of clamping cylinder 52 is uniformly provided with 4 branch Platform is supportted, setting supporting table guarantees the intensity of Needle localization guide cover 5, be unlikely to deform that one of supporting table is equipped with and first The corresponding first locking boss 53 of locking slot 114, the first locking boss 53 are L-type locking boss.

Further, the outer wall of Needle localization guide cover 5 is equipped with petal slot 56, convenient for increasing the rotation of Needle localization guide cover When frictional force.In addition, the top of clamping cylinder 52 is also provided with limiting slot 51 corresponding with shank is punctured, the shape of limiting slot 51 With the shape Corresponding matching of clamping cylinder, position limiting structure is formed, limiting slot 51 is arranged in the top of clamping cylinder 52, both can guarantee limit The convenience and stability that position block is installed in limiting slot, and do not influence the intensity of Needle localization guide cover oneself and covered puncturing The stability installed on tube socket, is simple and efficient.

Further, the extension of clamping cylinder be equipped with reverse frustoconic guide groove, if be arranged the purpose of guide groove in order to Limited block can be faster plugged in limiting slot 51.

It is the puncture needle for laparoscope puncture outfit of the utility model as shown in attached drawing 17-20, including punctures shank 22 With puncture needle sealing cover 21, punctures shank 22 and include the body of rod 221, puncture conehead 223 and puncture needle bar frame 222, puncture needle bar frame 222 are mounted on the top of the body of rod 221, puncture the bottom that conehead 223 is mounted on the body of rod 221；The lid week of puncture needle sealing cover 21 Face is divided into two symmetrical flat horizontal surfaces 211 and two symmetrical arcwall faces 212, and flat horizontal surface 211 is shiny surface, and arcwall face 212 is set There is burr 213, the purpose of this design is as grip part by flat horizontal surface 211 convenient for grasping, it regard arcwall face 212 as operating surface, Burr 213 above has antiskid function, facilitates the plug of puncture needle；In the puncture needle sealing cover 21 of 211 side of flat horizontal surface Equipped with locating slot 214, punctures needle bar frame 222 and be equipped with corresponding positioning column 225,225 grafting of positioning column enters will in locating slot 214 Puncture needle sealing cover 21 and puncture needle bar frame 222 are fixedly mounted, and positioning column 225 and locating slot 214 guarantee direct grafting Fixed puncture needle sealing cover 21 and puncture needle bar frame 222, and directly positioning puncture needle sealing cover 21 is on puncturing needle bar frame 222 Installation site, guarantee puncture needle at work flat horizontal surface 211 as grip part towards hand, effectively avoid wrong installation, pacify Dress mode is simple and convenient.

Further, puncturing shank 22 further includes limited block 224, and being located at for limited block 224 punctures under needle bar frame 222 Side, and be seamlessly connected on one side with puncture needle bar frame 222；Positioning column 225 is located at the surface of limited block 224, punctures in conehead 223 Tip end be located at the underface of limited block 224；Limited block 224 punctures shank 22 in Needle localization guide cover 5 for limiting Installation site, dividing can be effectively prevented radial rotating of the puncture needle in puncture cannula, guarantee the stability of surgical procedure；In addition The relative position of positioning column 225, puncture conehead 223 and 224 three of limited block both can guarantee the installation side of puncture needle sealing cover 21 To, and can guarantee installation position of the puncture needle in puncture cannula, and this design makes puncture outfit during installation, and it is very simple accurate, Greatly reduce setup error.

Further, puncturing needle bar frame 222 is discoid, the diameter of puncture needle bar frame 222 and 21 bottom of puncture needle sealing cover The internal diameter in portion is equal.The bottom of the flat horizontal surface 211 of puncture needle sealing cover 21 is additionally provided with grafting block 215, and the bottom of arcwall face 212 is also It equipped with clamping groove 216, punctures needle bar frame 222 and is equipped with inserting groove 227 corresponding with grafting block 215, and is right with clamping groove 216 The clamping block 226 answered.Grafting block 215 and clamping groove 216 are evenly distributed on the inner peripheral surface of puncture needle sealing cover 21.The design can be with It further strengthens puncture needle sealing cover 21 and punctures the mounting stability of needle bar frame 222, and the connection type designed is clamping, The modes such as the ultrasonic bonding in compared with the prior art, more convenient, safety and environmental protection.

Further, the another side of limited block 224 and the body of rod 221 are seamlessly connected.Limited block 224 is L shape limited block 224, L The short side and puncture needle bar frame 222 of shape limited block 224 are seamlessly connected, and long side and the body of rod 221 are seamlessly connected.L shape in the application Limited block 224 with puncture shank 22 be it is integrally formed, limited block 224 and puncture shank 22 production it is very simple, connection it is non- Often stablize, the radial rotating for puncturing shank 22 in puncture cannula can be effectively prevented, and is not easy stress damage, service life It is long.

As shown in fig. 21-22, it is the valve mounting mechanism for laparoscope puncture outfit of the utility model, including punctures set Tube socket 11 and gas injection valve 3 have two recessed portions 112, the outside of one of recessed portion 112 on the circumferential surface of puncture cannula seat 11 Gas injection valve 3 is installed, gas injection valve 3 includes valve body 32, spool and air injection pipe 31, the mounting cylinder in air injection pipe 31 and recessed portion 112 111 connections, and the angle between air injection pipe 31 and mounting cylinder 111 is 65-75 degree, i.e. the air injection pipe 31 of the application is inclination installation On recessed portion 112, the benefit of this design first is that the gas injection hose that can be plugged in air injection pipe 31 is also to be obliquely installed, Loading angle is preferable, is not easy to slide from air injection pipe 31, prevents operation from interrupting, second is that 31 inclined design of air injection pipe and and recessed portion 112 cooperations form air injection pipe 31 on puncture cannula seat 11 and partly hide design, unless operating gas injection consciously in use process Valve 3 switchs, and is otherwise not likely to produce the problem of accidentally touching gas injection valve 3；Valve body 32 is cylindrical shape, with being mounted in left and right perforation direction In air injection pipe 31, the left and right perforation of the application is different from the prior art for puncture outfit direction up and down The valve body 32 of middle gas injection valve 3 is arranged in up and down to be punctured on seat；Being equipped in valve body 32 can circumferentially rotate thus by air injection pipe 31 Connection or the spool blocked；Puncture cannula seat 11, valve body 32 and air injection pipe 31 are an integral structure, and intensity is high, and stability is strong, makes Sealing effect is good when must use, and is not likely to produce gas leakage or the phenomenon of leakage.

Further, air injection pipe 31 is mounted on the lower section of recessed portion 112, the area between 32 upside of valve body and recessed portion 112 Domain is also equipped with floor 113, and the centre of recessed portion 112, floor 113, puncture cannula seat 11,32 and of valve body is arranged in floor 113 Air injection pipe 31 is also an integral structure, by injection molding technology can simple realization, the design of floor 113 not only manufacture craft letter It is single, keep the bonding strength between gas injection valve 3 and puncture cannula seat 11 bigger, structural stability is more preferable, while floor 113 also functions to The effect for facilitating hand to hold in recessed portion 112, grasps puncture outfit more preferably, and can also finally further function as prevents from accidentally touching note Air valve 3.

Further, spool includes circumferentially rotating the valve rod 33 being arranged in valve body 32, and one end of valve rod 33, which is equipped with, to be located at The shift bar 34 in 32 outside of valve body, the other end are oblique cone end 332, and the purpose of oblique cone end 332 is arranged because of oblique cone end 332 Setting is quick installed in valve body 32 convenient for valve rod 33, easy to use, saves cost；Being equipped in the middle part of valve rod 33 can extend radially through The venthole 35 of valve rod 33.The circumferential position-limit mechanism that valve rod 33 circumferentially rotates can be limited by being equipped between valve rod 33 and valve body 32； Circumferential position-limit mechanism includes the arc notch 321 that 32 end of valve body is arranged in, and valve rod 33 is equipped with corresponding with arc notch 321 And when valve rod 33 circumferentially rotates can respectively with 321 end of arc notch against arc-shaped limit block 331.I.e. when arc-shaped limit block 331 with 321 one end of arc notch lean when, air injection pipe 31 is connected to by venthole 35 with mounting cylinder 111, shift bar 34 with infuse Tracheae 31 is parallel；When arc-shaped limit block 331 and 321 other end of arc notch against when, venthole 35 is by air injection pipe 31 and installation Cylinder 111 blocks, and shift bar 34 is vertical with air injection pipe 31, and shift bar 34 is higher by the recessed portion 1-2cm of puncture cannula seat 11, high In the purpose of recessed portion 1-2cm, the operation also for shift bar 34 reserves corresponding operation space so that the unlatching of valve or Shutoff operation is convenient, slip preventing fringe 341 is additionally provided on the lateral wall of shift bar 34, also for easy to operate.

Further, it is additionally provided with Needle localization guide cover on puncture cannula seat 11, limit is additionally provided in Needle localization guide cover The opposite side of gas injection valve 3 is arranged in position slot, limiting slot；Needle localization guide cover is equipped with puncture needle, and puncture needle includes that puncture needle is close Sealing cap and puncture shank, the two sides of puncture needle seal cap also are provided with the flat horizontal surface of recess, puncture shank and are equipped with locating piece, positioning Block is by the way that in installing locating slot, the concave part position of positioning flat horizontal surface and puncture cannula seat 11 is correspondingly set up and down.This design Purpose be guarantee hand recessed portion 112 gripping operate, be conducive to operation convenience.

The assembling process of the puncture outfit of the utility model are as follows: first the Duckbill seal valve in the second seal assembly is mounted on and is worn It pierces on casing seat, the first seal assembly integral installation is then completed into the assembling of puncture cannula in the top of the second seal assembly； Then shank will be punctured and the installation of puncture needle seal cap is fixed, complete the assembling of puncture needle；Finally by puncture needle successively from first The centre bore of seal assembly and the second seal assembly passes through, and the puncture conehead for puncturing shank end is pierced by outside puncture cannula, Complete the assembling process of puncture outfit.

The use process and sealing principle of the puncture outfit of the utility model are as follows: the sealing device of the utility model and primary Property puncture outfit match, be that a kind of minimally invasive hysteroscope instrument is suitable for abdominal cavity, uropoiesis, Gynaecological inspection and operation Surgical work channel use is established in the process.It is first that the puncture conehead of the puncture needle front end of disposable puncture device is soft in patients abdomen Tissue cuts osculum, then will puncture in conehead insertion patients abdomen soft tissue small notch, as puncture awl punctures soft tissue lower layer Scarf with puncture cannula lower bands taper enters soft tissue together, passes through patient abdominal cavity soft tissue until abdomen in puncture awl Chamber, puncture cannula reaches in the middle part of abdominal cavity as puncture awl penetrates abdominal cavity at this time, then extracts puncture needle from puncture cannula, beats The valve switch on gas injection valve top is opened, gas injects patient abdominal cavity by gas injection valve air inlet, spool, valve body, from puncture cannula In, since the second sealing valve lower part is equipped with duckbill valve, when puncture shank is extracted out from duckbill valve, the valve nozzle of duckbill valve closes automatically It closes, be injected into intraperitoneal gas just can not emerge out of puncture cannula, play the role of one-way sealing, so that pneumoperitoneum be kept to deposit Patient abdominal cavity is heaved, valve is closed, is starting abdominal operation process.

Then abdominal operation instrument can be inserted into and pass through from the first sealing valve, the second sealing valve of disposable puncture device Puncture cannula is inserted into abdominal cavity, since the comprehensive sealing valve of the first seal assembly and the duckbill valve of the second seal assembly are to surgical device Tool has extraordinary holding effect, and sealing abdominal operation instrument performance is good, and injecting gas in abdominal cavity will not leak, and has multiple Sealing effect.Surgical instrument is extracted from disposable puncture device after operation, valve switch is opened, will be infused in patient abdominal cavity Enter gas to excrete from the exhaust outlet of gas injection valve, it, can be by disposable puncture device from patients abdomen after gas to be implanted discharge It transfers to, completes surgical procedure.

It is compact-sized, using safely, effectively in short, the disposable puncture device design of the utility model is rationally, in clinical hand Wound area can be greatly reduced in art, greatly shortens operating time, reduces the bleeding and postoperative infection of patient, while improving hand Art quality.Using first sealing valve of the utility model, it is still able to maintain good sealability.It can be widely applied to abdominal cavity In the Mini-type puncture outfit of the micro-wound surgical operations such as mirror, thoracoscope.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection of two components interiors.For the ordinary skill in the art, on being understood by concrete condition State the concrete meaning of term in the present invention.

Above are merely preferred embodiments of the utility model, it is noted that for the common skill of the art For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and Retouching also should be regarded as the protection scope of the utility model.

Claims (8)

1. a kind of valve mounting mechanism for laparoscope puncture outfit, it is characterised in that: including puncture cannula seat and gas injection valve, institute Stating has two recessed portions on the circumferential surface of puncture cannula seat, be equipped with gas injection valve, the gas injection valve on the outside of one of recessed portion Including valve body, spool and air injection pipe, the air injection pipe is connect with the mounting cylinder in recessed portion, and between air injection pipe and mounting cylinder Angle is 65-75 degree；The valve body is cylindrical shape, with being mounted in air injection pipe in left and right perforation direction；Energy is equipped in valve body Circumferentially rotate the spool to which air injection pipe to be connected to or block；The puncture cannula seat, valve body and air injection pipe are an integral structure.

2. a kind of valve mounting mechanism for laparoscope puncture outfit according to claim 1, which is characterized in that the note Tracheae is mounted on the lower section of recessed portion, and the region between the valve body upside and recessed portion is also equipped with floor, and the floor is worn Thorn casing seat, valve body and air injection pipe are also an integral structure.

3. a kind of valve mounting mechanism for laparoscope puncture outfit according to claim 2, which is characterized in that the valve Core includes circumferentially rotating setting in the intracorporal valve rod of valve, and one end of valve rod is equipped with the shift bar being located on the outside of valve body, and the other end is Oblique cone end；The venthole that can extend radially through valve rod is equipped in the middle part of valve rod.

4. a kind of valve mounting mechanism for laparoscope puncture outfit according to claim 3, which is characterized in that the valve The circumferential position-limit mechanism that valve rod circumferentially rotates can be limited by being equipped between bar and valve body；The circumferential direction position-limit mechanism includes that setting exists The arc notch of valve end, valve rod are equipped with corresponding with arc notch and can lack respectively with arc when valve rod circumferentially rotates Mouthful end against arc-shaped limit block.

5. a kind of valve mounting mechanism for laparoscope puncture outfit according to claim 3, which is characterized in that the rib The centre of recessed portion is arranged in plate, when the venthole of the valve rod is connected to the gas injection port of air injection pipe, the shift bar and gas injection Pipe is parallel；When the venthole of the valve rod and the gas injection port of air injection pipe block, the shift bar is vertical with air injection pipe, and shift bar It is higher by the recessed portion 1-2cm of puncture cannula seat.

6. a kind of valve mounting mechanism for laparoscope puncture outfit according to claim 3, which is characterized in that described to open It closes and is additionally provided with slip preventing fringe on the lateral wall of handle.

7. a kind of valve mounting mechanism for laparoscope puncture outfit according to claim 1, which is characterized in that described to wear It is additionally provided with Needle localization guide cover on thorn casing seat, limiting slot is additionally provided in the Needle localization guide cover, the limiting slot is set It sets in the opposite side of the gas injection valve.

8. a kind of valve mounting mechanism for laparoscope puncture outfit according to claim 7, which is characterized in that described to wear Thorn positioning and guiding lid is equipped with puncture needle, and the puncture needle includes puncture needle seal cap and punctures shank, and the puncture needle seals The two sides of cap also are provided with the flat horizontal surface of recess, and the puncture shank is equipped with locating piece, and the locating piece passes through installing locating slot Interior, the concave part position for positioning the flat horizontal surface and puncture cannula seat is correspondingly set up and down.