CN220275666U - Puncture device - Google Patents

Abstract

The utility model discloses a puncture device, which comprises a sealing assembly, a sleeve assembly and a puncture cone, wherein the puncture cone penetrates through the sealing assembly and is inserted into the sleeve assembly, the sealing assembly comprises a locking component and an unlocking device, a stop part is arranged on the inner side wall of a sealing shell, the locking component is inserted into the sealing shell until being abutted against the stop part of the sealing shell, and is used for locking the sealing assembly and the sleeve assembly, and the unlocking device is used for unlocking the sealing assembly and the sleeve assembly. The puncture device adopts the locking component to lock the sealing component and the sleeve component, has simple design, is convenient to process and flexible to disassemble, and ensures that the operation of a doctor in the operation process is very convenient.

Description

Puncture device

Technical Field

The utility model relates to the field of medical instruments, in particular to a puncture device.

Background

A puncture device for a laparoscope is a minimally invasive surgical instrument, a small opening is cut on the abdomen of a human body during operation, the puncture device with a puncture cone penetrates through the whole abdominal wall, a channel between the outside and the abdominal cavity is established, other minimally invasive surgical instruments can enter the abdominal cavity conveniently through the channel, the surgical process is completed, and the same purpose of a traditional open surgery is achieved. The puncture device for the laparoscope mainly comprises a puncture sleeve and a puncture cone, when the puncture device is used, the puncture cone is mainly used for penetrating the abdominal wall together with the puncture sleeve, a puncture knife at the front end of the puncture cone is used for squeezing skin tissues into the abdominal cavity, the puncture sleeve is left on the abdominal wall, the puncture sleeve is mainly used as a channel for various surgical instruments to enter the abdominal cavity, and a doctor can perform surgical operation to finish surgical tasks.

In the operation process, a doctor can cut a lot of pathological tissues in pneumoperitoneum, the sizes of the resections are different, the resections need to be taken out through an instrument hole of a puncture device, the channel diameter of the instrument hole of the current puncture device is smaller, and when the large resected tissues need to be taken out in the operation, the puncture device assembly needs to be disassembled so as to be convenient for taking out the resected tissues. Specifically, two hands are required to operate simultaneously, one hand presses the sleeve, the other hand screws other components of the puncture device, and a doctor is obviously required to put down other surgical instruments in the hands first, so that the doctor is influenced to use the other surgical instruments, the operation hand feeling of the doctor is reduced, and the operation time of a patient is prolonged.

How to solve the technical problem of inconvenient disassembly of the puncture device in the prior art is a technical problem which needs to be solved urgently at present.

Disclosure of Invention

The technical problem to be solved by the utility model is to solve the technical problem that the puncture device is inconvenient to disassemble in the prior art.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows:

the utility model provides a puncture device, includes seal assembly, sleeve pipe subassembly and puncture awl, puncture awl passes seal assembly inserts in the sleeve pipe subassembly, its characterized in that, seal assembly includes a locking component and an unlocking device, seal housing inside wall is equipped with the portion of stopping, locking component inserts seal housing inside until with seal housing's the portion of stopping butt, be used for with seal assembly with the sleeve pipe subassembly locking, unlocking device is used for releasing seal assembly and sleeve pipe subassembly's locking.

The puncture device adopts the locking component to lock the sealing component and the sleeve component, has simple design and is convenient for processing.

Further, the locker component is provided with at least one first locking buckle, the first locking buckle comprises a clamping body and a hook-shaped end part, the sleeve component is correspondingly provided with at least one first clamping groove, and when the sealing component is downwards inserted into the sleeve component, the hook-shaped end part of the first locking buckle is locked in the first clamping groove.

The puncture device adopts the hooked end part of the first locking buckle to be locked in the first clamping groove to lock the sealing component and the sleeve component, so that the puncture device is very flexible to disassemble, and the operation of a doctor in the operation process is very convenient.

Further, the locking component is further provided with at least one first positioning rod, the sleeve assembly is correspondingly provided with at least one first positioning groove, and when the sealing assembly is inserted into the sleeve assembly downwards, the first positioning rod is clamped and fixed with the first positioning groove.

In order to enable the connection of the sealing assembly and the sleeve assembly to be more firm, the utility model adopts a mode that the first positioning rod is inserted into the first positioning groove to position the sealing assembly and the sleeve assembly, so that the quick disassembly of a doctor in the operation process is facilitated.

Further, the first locking buckle and the first positioning rod are located on the same circumferential end face of the sealing assembly, the length of the first locking buckle is smaller than that of the first positioning rod, and the first clamping groove and the first positioning groove are located on the same circumferential end face of the sleeve assembly.

In order to quickly detach the sealing assembly and the sleeve assembly, the utility model adopts a mode of positioning and locking, and the length of the first positioning rod is longer than that of the first locking buckle.

Furthermore, the upper end face of the sleeve component is also provided with an air-blocking sealing cap, the sealing component is inserted into the sleeve component by extruding the air-blocking sealing cap, and the air-blocking sealing cap is compressed under the pressure action of the sealing component to generate elastic force.

In order to increase the sealing cap device, the embodiment of the utility model increases the tightness of the sealing assembly and the sleeve assembly, so that the sealing effect is better.

Further, the side wall of the sealing assembly is provided with at least one unlocking device, the unlocking device comprises an ejection block, the ejection block is enabled to move towards the first locking buckle under the action of external force until the ejection block and the surface of the clamping body of the first locking buckle are abutted to reach a preset position, the clamping body of the first locking buckle is inclined under the action of the thrust of the ejection block, the hook-shaped end part of the first locking buckle is enabled to be separated from the first clamping groove, and the sealing assembly is enabled to be ejected upwards under the action of the elastic force of the air blocking sealing cap.

The unlocking device is arranged, so that the sealing component of the puncture device can realize one-key separation in the disassembling process.

Further, the sealing assembly comprises a sealing upper cover,

the sealing upper cover is provided with a second clamping groove, the sealing shell is correspondingly provided with a second locking buckle, the sealing upper cover is pressed into the sealing shell downwards through the locking part, and is locked with the second locking buckle of the sealing shell through the second clamping groove.

Further, the sleeve assembly further comprises a sealing cover, the sealing cover is sleeved on the gas-blocking sealing cap, at least one avoidance groove is formed in the side wall of the sealing cover, the avoidance groove is arranged at the relative position of the first clamping groove, and the avoidance groove is used for performing abdication treatment on the first locking buckle when the first locking buckle inclines.

Further, at least one second positioning groove is formed in the side wall of the lower end of the sealing cover, at least one second positioning rod is correspondingly arranged at the upper end of the sleeve assembly, and the second positioning groove of the sealing cover is downwards inserted into the second positioning rod.

Further, the puncture awl includes casing, integral type machine pivot, lower casing, puncture pole, go up the casing and loops through integral type machine pivot lower casing with the proximal end of puncture pole links to each other, integral type machine pivot is equipped with the third locating lever, lower casing surface is equipped with corresponding third locating lever passageway, is used for right the third locating lever is spacing.

Further, a third locking buckle is symmetrically arranged on the integral machine in a pivoting mode, a third clamping groove is correspondingly formed in the sealing upper cover, and the puncture cone is limited through the third locating rod of the integral machine in a pivoting mode and the third locating rod channel of the sealing upper cover and is pressed downwards, so that the third locking buckle of the integral machine in a pivoting mode is clamped in the third clamping groove of the sealing upper cover.

Further, the third locking buckles of the integral machine pivot are made of elastic materials, when the puncture cone is taken out, the third locking buckle ends on two sides of the integral machine pivot are pressed, and then the two third locking buckles on the integral machine pivot move inwards in opposite directions until the third locking buckles are separated from the third clamping groove, and the puncture cone is taken out.

With such a design, the utility model has at least the following advantages:

(1) According to the utility model, the locking component is added, so that a doctor can conveniently realize one-key separation of the sealing component and the sleeve component in the operation process, and the operation efficiency is improved.

(2) The utility model adopts the hook-shaped end part of the first locking buckle to be clamped into the first clamping groove to lock the sealing component and the sleeve component, has simple design, is convenient to process and flexible to disassemble, and ensures that the operation of a doctor in the operation process is very convenient.

(3) The utility model has simple structure, good effect, low cost and easy process realization.

Drawings

The foregoing is merely an overview of the present utility model, and the present utility model is further described in detail below with reference to the accompanying drawings and detailed description.

FIG. 1 is a block diagram of the lancing device of the present utility model;

FIG. 2 is a structural cross-sectional view of a seal assembly according to an embodiment of the present utility model;

FIG. 3 is an exploded schematic view of a seal assembly according to an embodiment of the present utility model;

FIG. 4-A is a schematic top view of a seal cover according to an embodiment of the present utility model;

FIG. 4-B is a schematic view showing the bottom structure of a sealing cap according to an embodiment of the present utility model;

FIG. 5 is a schematic view of the structure of a sealed enclosure according to an embodiment of the present utility model;

FIG. 6-A is a schematic top view of a lock according to an embodiment of the present utility model;

FIG. 6-B is a schematic bottom view of a lock according to one embodiment of the present utility model;

FIG. 7 is a schematic view showing the structure of an unlock button according to an embodiment of the present utility model;

FIG. 8 is a schematic view of a bushing assembly according to an embodiment of the utility model;

FIG. 9 is an exploded view of a sleeve assembly according to one embodiment of the present utility model;

FIG. 10 is a schematic view showing an initial state of the puncture cannula structure according to an embodiment of the present utility model;

FIG. 11 is a schematic view showing an initial state of a puncture cannula structure according to an embodiment of the present utility model;

FIG. 12 is a structural profile of a piercing cone according to an embodiment of the utility model;

FIG. 12-A is an enlarged structural profile of the upper end of the burr of FIG. 12;

FIG. 12-B is an enlarged structural profile of the piercing post of FIG. 12;

FIG. 13 is an exploded view of a piercing cone according to an embodiment of the utility model;

FIG. 14-A is a schematic top view of the upper housing according to an embodiment of the present utility model;

FIG. 14-B is a schematic view of the bottom structure of the upper housing according to one embodiment of the present utility model;

FIG. 15 is a schematic view of an integrated pivot structure according to an embodiment of the present utility model;

FIG. 16 is a structural profile of the mating of the penetration cone and penetration cannula according to one embodiment of the present utility model;

in the reference numerals, 1 is a sealing assembly, 2 is a sleeve assembly, 3 is a puncture cone, 101 is a sealing upper cover, 1011 is a positioning rod channel, 1012 is a third clamping groove, 1013 is a conical instrument hole, 1014 is a second clamping groove, 102 is a sealing shell, 1021 is a second locking buckle, 1022 is a button seat, 1023 is a positioning part, 103 is an upper sealing plate, 104 is an upper fixing ring, 105 is an elastic sealing ring, 106 is a corrugated ring, 107 is a lower fixing ring, 108 is a locking part, 1081 is a first positioning rod, 1082 is a first buckle, 10821 is a clamping body, 10822 is a hook-shaped end part, 109 is an O-shaped ring, 110 is an unlocking device, 111 is a silica gel retainer ring, 1101 is a T-shaped track, 1102 is an ejection block, 201 is a sleeve, 2011 is a first positioning groove, 2012 is a first clamping groove, 2013 is an auxiliary fixing wing, 2014 is a second positioning rod, 2015 is an air inlet channel, 202 is a sealing cover, 2021 is a second positioning groove, 2022 is a position avoiding groove, 203 is an air blocking sealing cap, 204 is a valve body, 205 is a valve core, 301 is a lower shell, 3011 is a strut seat, 3012 is a buckling channel, 3013 is a third positioning rod channel, 3014 is a limiting tube, 302 is an upper shell, 3021 is a strut, 3022 is a lower end surface, 3023 is an instrument hole, 3024 is a button groove, 303 is an integral machine pivot, 3031 is a second button, 3032 is a third buckle, 3033 is a third positioning rod, 3034 is a limiting ring, 304 is a puncture rod, 3041 is a tip, and 3042 is a positioning sleeve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In this document, "upper", "lower", and the like are used merely to denote relative positional relationships between related parts, and do not limit the absolute positions of the related parts.

Unless otherwise indicated, numerical ranges herein include not only the entire range within both of its endpoints, but also the several sub-ranges contained therein.

The end of each component that is closer to the operator is defined as the proximal end and the end that is farther from the operator is defined as the distal end. The proximal and distal expressions are used for simplicity and clarity of description only and should not be construed as limiting the utility model in any way.

As shown in fig. 1-16, an embodiment of the present utility model provides a puncture device, which comprises a seal assembly 1, a cannula assembly 2 and a puncture cone 3, wherein the puncture cone 3 is inserted into the cannula assembly 2 through the seal assembly 1, the seal assembly 1 comprises a locking component 108, a stop portion 1023 is arranged on the inner side wall of a seal housing 102 of the seal assembly 1, and the locking component 108 is inserted into the seal housing 102 until abutting against the stop portion 1023 of the seal housing 102, so as to lock the seal assembly 1 and the cannula assembly 2.

Specifically, the locking member 108 is provided with at least one first locking buckle 1082, the first locking buckle 1082 includes a buckle body 10821 and a hook-shaped end 10822, the upper end of the sleeve assembly 2 is correspondingly provided with at least one first slot 2012, and when the sealing assembly 1 is inserted into the sleeve assembly 2 downward, the hook-shaped end 10822 of the first locking buckle 1082 is locked in the first slot 2012.

Here, the first locking buckle 1082 is made of an elastic material, and the hook end 10822 of the first locking buckle 1082 is required to be at least firmly locked into the first slot 2012.

Preferably, the number of the first locking buckles 1082 is 2, and the two locking buckles are symmetrically distributed at two ends of the sealing assembly 1, the number of corresponding first clamping grooves 2012 is 2, and the direction of the through holes of the first clamping grooves 2012 is parallel to the end face of the sleeve assembly 2.

Of course, the first slot 2012 may be the card Kong Fangshi, so long as the hook end 10822 of the first locking buckle 1082 can be fixed and clamped, which is not described herein.

Further, the locking component 108 is provided with at least one first positioning rod 1081, the sleeve assembly 2 is correspondingly provided with at least one first positioning groove 2011, and when the sealing assembly 1 is inserted into the sleeve assembly 2 downwards, the first positioning rod 1081 is clamped and fixed with the first positioning groove 2011.

Specifically, the notch of the first positioning groove 2011 can accommodate the first positioning rods 1081, the number of the first positioning rods 1081 is 2, the first positioning rods 1081 are symmetrically distributed at two ends of the sealing assembly 1, the number of the corresponding first positioning grooves 2011 is 2, and the opening direction of the first positioning groove 2011 is upward.

Further, the first locking buckle 1082 and the first positioning rod 1081 are located on the same circumferential end surface of the sealing assembly 1, the length of the first locking buckle 1082 is smaller than that of the first positioning rod 1081, and the first clamping groove 2012 and the first positioning groove 2011 are located on the same circumferential end surface of the sleeve assembly 3.

The length of the first locking buckle 1082 is smaller than that of the first positioning rod 1081, so that the sealing assembly 1 is positioned in the sleeve assembly 2 through the first locking buckle 1082, and then the sealing assembly 1 is locked in the sleeve assembly 2, and the connecting mode of the sealing assembly 1 and the sleeve assembly 2 is firmer by adopting a fixed locking mode.

In order to increase the connection tightness between the sealing assembly 1 and the sleeve assembly 2, in the embodiment of the utility model, a gas-blocking sealing cap 203 is further arranged on the upper end surface of the sleeve assembly 2, the sealing assembly 1 is inserted into the sleeve assembly 2 by pressing the gas-blocking sealing cap 203, and the gas-blocking sealing cap 203 is compressed under the pressure of the sealing assembly 1 to generate elastic force.

In order to increase the tightness of the sealing assembly 1 and the sleeve assembly 2, the device of the air-blocking sealing cap 203 is added, so that the sealing effect is better.

Further, at least one unlocking device 110 is disposed on the side wall of the sealing component 1 of the puncture device according to the embodiment of the present utility model, the unlocking device comprises an ejector block 1102, the ejector block 1102 is moved towards the first locking buckle 1082 by the action of external force by the unlocking device 110 until the ejector block abuts against the surface of the card body of the first locking buckle 1082 to reach a predetermined position, the card body of the first locking buckle 1082 is inclined by the thrust action of the ejector block, so that the hooked end portion of the first locking buckle 1082 is separated from the first clamping groove 2012, and the sealing component 1 is ejected upwards by the action of the elastic force of the air sealing cap 203.

The seal assembly in the embodiment of the present utility model further includes a seal upper cover 101,

the sealing upper cover 101 is provided with a second clamping groove 1014, the sealing shell 102 is correspondingly provided with a second locking buckle 1021, the sealing upper cover 101 is pressed into the sealing shell 102 downwards through the locking part 108, and is locked with the second locking buckle 1021 of the sealing shell 102 through the second clamping groove 1014;

specifically, the sealing assembly 1 further comprises an upper sealing plate 103, an upper fixing ring 104, an elastic sealing ring 105, a corrugated ring 106, a lower fixing ring 107, an O-ring 109 and a silica gel retainer ring 111;

the seal housing 102 has a stopper 1023 provided on an inner wall thereof, and a locking member 108 is fixed to the inner wall of the seal housing 102 by an O-ring 109.

The lower end of the lock member 108 is in abutting contact with the stopper 1023 of the seal housing 102.

An elastic sealing ring 105 and a corrugated ring 106 are fixed between the upper fixing ring 104 and the lower fixing ring 107, the outer end surface of the corrugated ring 106 is tightly pressed and sealed by a locking part 108 and an upper sealing plate 103, the upper sealing plate 103 is fixed inside a sealing shell 102 through an O-shaped ring 109, and the upper sealing plate 103 and the upper fixing ring 104 are in clearance fit, so that the elastic sealing ring 105 forms a sealing structure inside the sealing shell 102 which can be deformed in a circumferential direction by the corrugated ring 106;

the sealing upper cover 101 is provided with a conical instrument hole 1013 and a second clamping groove 1014, the sealing shell 102 is provided with a second locking clamp 1021, the sealing upper cover 101 is pressed downwards into the sealing shell 102, the sealing upper cover is locked with the second locking clamp 1021 of the sealing shell through the second clamping groove 1014, and the lower end face of the sealing upper cover 101 is pressed on the upper sealing plate 103, so that the upper sealing plate 103 is fixed.

Specifically, symmetrical button seats 1022 are provided on both sides of the seal housing 102; the unlocking device 110 further comprises a T-shaped track 1101, the T-shaped track 1101 of the unlocking device 110 is inserted into the button seat 1022, and the elastic silica gel retainer 111 of the sealing assembly 1 is sleeved between the T-shaped track 1101 and the ejector block 1102 of the unlocking device 110, so that the button of the unlocking device 110 is limited inside the button seat 1022, and at this time, the ejector block 1102 of the unlocking device 110 is just propped against the first locking buckle 1082 on the locking component 108.

The sleeve assembly 2 of the embodiment of the present utility model further includes a sealing cover 202, the sealing cover 202 is sleeved on the airtight cap 203, at least one avoiding groove 2022 is provided on the side wall of the sealing cover 202, the avoiding groove 2022 is disposed at the opposite position of the first clamping groove 2012, and is used for performing the abdication treatment on the first locking buckle 1082 when the first locking buckle 1082 is inclined.

At least one second positioning groove 2021 is formed on the sidewall of the lower end of the sealing cover 202, at least one second positioning rod 2014 is correspondingly formed on the upper end of the sleeve assembly 2, and the second positioning groove 2021 of the sealing cover 202 is inserted into the second positioning rod 2014 downwards.

Specifically, the sleeve assembly 2 is further provided with a sleeve 201, a valve body 204 and a spool 205. The sleeve 201 is provided with a first symmetrical positioning groove 2011, a first clamping groove 2012, an auxiliary fixing wing 2013, a second positioning rod 2014 and an air inlet channel 2015, and the sealing cover 202 is provided with a second positioning groove 2021 and a clearance groove 2022; the second positioning groove 2021 of the sealing cover 202 is aligned with the second positioning rod 2014 of the sleeve 201, and is welded and fixed by ultrasonic, the avoidance groove 2022 is arranged at the position of the first clamping groove 2012, and the first locking buckle 1082 is subjected to avoidance treatment; the gas-blocking sealing cap 203 is provided with a groove and is arranged on the inner ring of the sealing cover 202; the valve body 204 is ultrasonically welded to the sleeve 201, and the valve element 205 cooperates with the valve body 204 to control the flow rate of the gas.

Further, the puncture cone 3 includes an upper housing 302, an integral machine pivot 303, a lower housing 301, and a puncture rod 304, where the upper housing 302 sequentially passes through the integral machine pivot 303 and the lower housing 301, and is connected to the proximal end of the puncture rod 304, the integral machine pivot 303 is provided with a third positioning rod 3033, and the surface of the lower housing 301 is provided with a corresponding third positioning rod channel 3013 for limiting the third positioning rod 3033.

The lower shell 301 is also provided with a strut seat 3011, a buckle channel 3012 and a limiting tube 3014; the upper housing 302 is provided with a post 3021, a lower end face 3022, and a button groove 3024; the instrument hole 3023 and the integrated machine pivot 303 are further provided with a second button 3031, a third locking buckle 3032 and a limiting ring 3034; the piercing rod 304 has a tip 3041 and a positioning sleeve 3042.

The integral machine pivot 303 is symmetrically provided with a third locking buckle 3032, the sealing upper cover 101 is correspondingly provided with a third clamping groove 1012, and the puncture cone 3 is limited by the third positioning rod 3033 of the integral machine pivot 303 and the third positioning rod channel 3013 of the sealing upper cover 101 and is pressed downwards, so that the third locking buckle 3032 of the integral machine pivot is clamped in the third clamping groove 1012 of the sealing upper cover.

When the puncture cone 3 is taken out, the third locking buckles 3032 of the integral machine pivot are made of elastic materials, and when the ends of the third locking buckles 3032 on the two sides of the integral machine pivot are pressed, the two third locking buckles 3032 on the integral machine pivot move inwards in opposite directions until the puncture cone is separated from the third clamping groove 1012, and the puncture cone is taken out.

The sealing assembly 1 is locked in the direction through the first positioning rod 1081 on the locker 108 and the first positioning groove 2011 on the sleeve, the sealing assembly 1 is pressed downwards until the first locking buckle 1082 is buckled in the first clamping groove 2012, at the moment, the lower end of the locking part 108 is pressed on the airtight cap 203, and the sealing part is sealed by interference fit, so that the initial state of the puncture sleeve is achieved;

when the seal assembly 1 needs to be disassembled, the unlocking devices 110 on two sides of the seal assembly 1 are pressed simultaneously, the unlocking devices 110 are pushed into the button seat 1022 in a limiting mode through the T-shaped track 1101, the push-out block 1102 is pushed onto the first buckle 1082 of the locking component 108 until the first buckle 1082 is separated from the first clamping groove 2012 on the sleeve 201, at this time, the seal assembly 1 is automatically ejected upwards under the elastic force of the air blocking seal cap 203, and the seal assembly 1 is separated from the sleeve assembly.

The integral machine pivot 303 passes through the positioning rod channel 3013 of the lower shell through the positioning rod 3033 to limit the integral machine pivot 303, the limiting ring 3034 on the integral machine pivot 303 is sleeved on the limiting tube 3014 of the lower shell 301, the positioning sleeve 3042 of the puncture rod 304 is placed on the limiting ring 3034 of the integral machine pivot 303, the support post 3021 of the upper shell 302 is aligned with the support post seat 3011 of the lower shell 301 to be pressed downwards until the lower end face 3022 of the upper shell 302 is pressed on the positioning sleeve 3042 of the puncture rod 304, and the integral machine pivot 303 and the puncture rod 304 are locked.

The puncture cone 1 is limited by a third positioning rod 3033 on the integral machine pivot 303 and a positioning rod channel 1011 of the sealing upper cover 101 and is pressed downwards, so that a third buckle 3032 on the integral machine pivot 303 is clamped in a third clamping groove 1012 of the sealing upper cover 101.

When the puncture cone 3 is removed, the second buttons 3031 on both sides of the integrated machine pivot 303 are pressed, so that the third buckle 3032 on the integrated machine pivot 303 moves inwards until the puncture cone 3 is separated from the third clamping groove 1012, and the puncture cone 3 can be manually removed.

According to the utility model, by adding the locking component, a doctor can conveniently realize one-key separation of the sealing component and the sleeve component in the operation process, the design is simple, the processing is convenient, the disassembly is flexible, the operation is convenient in the operation process of the doctor, and the operation efficiency is improved.

Other embodiments of the utility model will be apparent to those skilled in the art from consideration of the specification and practice of the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of the utility model following, in general, the principles of the utility model and including such departures from the present disclosure as come within known or customary practice within the art to which the utility model pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the utility model being indicated by the following claims.

It is to be understood that the utility model is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the utility model is limited only by the appended claims.

Claims (12)

1. The utility model provides a puncture device, includes seal assembly, sleeve pipe subassembly and puncture awl, puncture awl passes seal assembly inserts in the sleeve pipe subassembly, its characterized in that, seal assembly includes a locking component and an unlocking device, seal assembly's seal housing inside wall is equipped with the portion of stopping, locking component inserts seal housing inside until with seal housing's the portion of stopping butt for with seal assembly with the sleeve pipe subassembly locking, unlocking device is used for releasing seal assembly and sleeve pipe subassembly's locking.

2. A lancing device according to claim 1, wherein said locking means is provided with at least a first locking catch, said first locking catch comprising a catch body and a hooked end, said sleeve assembly being correspondingly provided with at least a first catch groove, said hooked end of said first locking catch being locked in said first catch groove when said sealing assembly is inserted downwardly into said sleeve assembly.

3. The lancing apparatus of claim 2, wherein the locking member further comprises at least one first positioning bar, and the housing assembly comprises at least one first positioning slot, and wherein the first positioning bar is engaged with and secured to the first positioning slot when the sealing assembly is inserted into the housing assembly.

4. The lancing device of claim 3, wherein the first locking clasp and the first positioning rod are located on the same circumferential end face of the locking member, the length of the first locking clasp is less than the length of the first positioning rod, and the first slot and the first positioning groove are located on the same circumferential end face of the cannula assembly.

5. The lancing device of claim 4, wherein the upper end surface of the sleeve assembly is further provided with a sealing cap, the sealing assembly is inserted into the sleeve assembly by pressing the sealing cap, and the sealing cap is compressed under the pressure of the sealing assembly to generate the elastic force.

6. The puncture device according to claim 5, wherein the unlocking device is disposed on a side wall of the sealing assembly, the unlocking device comprises an ejection block, the ejection block is moved towards the first locking buckle by the unlocking device under the action of an external force until the ejection block is abutted against the surface of the clamping body of the first locking buckle to reach a preset position, the clamping body of the first locking buckle is inclined under the action of the pushing force of the ejection block, the hooked end part of the first locking buckle is separated from the first clamping groove, and the sealing assembly is ejected upwards under the action of the elastic force of the air blocking sealing cap.

7. The lancing device of claim 6, wherein the sealing assembly includes a sealing cap,

the sealing upper cover is provided with a second clamping groove, the sealing shell is correspondingly provided with a second locking buckle, the sealing upper cover is pressed into the sealing shell downwards through the locking part, and is locked with the second locking buckle of the sealing shell through the second clamping groove.

8. The lancing apparatus of claim 7, wherein the sleeve assembly further comprises a sealing cap, the sealing cap is sleeved on the gas-barrier sealing cap, at least one clearance groove is provided on a sidewall of the sealing cap, the clearance groove is disposed at a position opposite to the first clamping groove, and is configured to give way to the first locking buckle when the first locking buckle is tilted.

9. The lancing apparatus of claim 8, wherein at least one second positioning slot is provided in a sidewall of the lower end of the sealing cap, at least one second positioning rod is provided in the upper end of the sleeve assembly, and the second positioning slot of the sealing cap is inserted into the second positioning rod downward.

10. The lancing apparatus of claim 9, wherein the lancing cone comprises an upper housing, an integrated machine pivot, a lower housing, and a lancing lever, the upper housing is connected to the proximal end of the lancing lever sequentially through the integrated machine pivot and the lower housing, the integrated machine pivot is provided with a third positioning lever, and the surface of the lower housing is provided with a corresponding third positioning lever channel for limiting the third positioning lever.

11. The puncture device according to claim 10, wherein the integrated machine is provided with a third locking buckle in a pivoting manner, the sealing upper cover is correspondingly provided with a third clamping groove, and the puncture cone is limited by the third positioning rod of the integrated machine and the third positioning rod channel of the sealing upper cover and is pressed downwards, so that the third locking buckle of the integrated machine is clamped in the third clamping groove of the sealing upper cover.

12. The lancing apparatus of claim 11, wherein the third locking tabs of the integrated lancing apparatus are made of an elastic material, and when the lancing apparatus is removed, the third locking tabs on the integrated lancing apparatus are pushed against the third locking tabs on both sides of the integrated lancing apparatus, and the third locking tabs on the integrated lancing apparatus move inwardly toward each other until they are disengaged from the third slots, thereby removing the lancing apparatus.