CN209107522U - Puncture outfit - Google Patents

Abstract

The utility model discloses a kind of puncture outfits, including puncture cannula and the puncture awl suitable for being interspersed in puncture cannula, and the casing seat of cylindrical structure being equipped in the end of puncture cannula；Air shuttle valve made of elastic material is equipped in casing seat；Air shuttle valve includes the valgus being from top to bottom sequentially connected, base portion, stage portion, protruding portion and rake；Casing seat is provided with excessive connection ring far from one end close-fitting of puncture cannula；The peripheral side of excessive connection ring sets that there are three arc-shaped slots, and insertion mouth is formed between every two adjacent arc-shaped slots, and insertion mouth is connected to arc-shaped slot；And puncture awl is arranged in the fixed lid of a positioning far from the end of puncture cannula, the fixed lid of the positioning is connected and fixed lid by one and is connected with excessive connection ring；It is connected and fixed the inner circumferential side of lid and sets that there are three the fixture blocks for being suitable for rotating respectively along three arc-shaped slots along the spaced radial for being connected and fixed lid.

Description

Puncture outfit

Technical field

The utility model relates to the field of medical instrument technology more particularly to a kind of puncture outfits.

Background technique

Check, in abdominal operation and other minimally invasive or surgical operation that puncture outfit uses extensive in abdominal cavity.Puncture outfit can be with It is established in the stomach wall of human body and enters channel, to enter abdomen for laparoscope or other surgical instruments such as seal wire, conduit etc. It is intracavitary, it is checked accordingly or surgical procedure.

Puncture outfit overall structure includes suitable for interting connected puncture cannula and puncture awl, in order to realize that the two was using It is relatively fixed in journey, it needs using the structure for being easily assembled and dismantling and the two can be made to be connected firmly again.

The leakproofness of puncture outfit entirety is extremely important for going on smoothly for operation, therefore the gas-blocking valve structure in puncture outfit If not perfect, the chronic leakage of puncture outfit is easily caused, and during puncture awl is drawn out puncture cannula, existing skill Some air shuttle valves in art are found the presence of the resistance for being pulled to the case where turning up to cause drawing process in use.

For the matching problem between puncture awl and puncture cannula, in the prior art in use process there are puncture Device is when extracting puncture awl out, since puncture awl end and puncture cannula end cooperate relatively tight and depositing plus blood or body fluid Making the increased pressure inside puncture cannula, big, the inconvenient problem of the difficulty of puncture awl extraction everywhere.

Utility model content

The purpose of the utility model is to provide a kind of puncture outfits, to solve being easily assembled and dismantle and enhancing for puncture outfit The technical issues of airtight effect.

The puncture outfit of the utility model is achieved in that

A kind of puncture outfit, comprising: puncture cannula and the puncture awl suitable for being interspersed in the puncture cannula, and described The casing seat for the cylindrical structure that the end of puncture cannula is equipped with；

Air shuttle valve made of elastic material is equipped in described sleeve pipe seat；The air shuttle valve includes from top to bottom being sequentially connected Valgus, base portion, stage portion, protruding portion and rake；The base portion and protruding portion are hollow cylinder structure；Stage portion is downward Inclined hollow round table structure；The inclined-plane that the rake tilts down, the lower part for the rake being oppositely arranged collectively form suitable In the lip that the puncture awl passes through；

Described sleeve pipe seat is provided with excessive connection ring, the valgus peace of the air shuttle valve far from one end close-fitting of puncture cannula To fix air shuttle valve on the installation snap ring of the excessive connection ring；The peripheral side of the excessive connection ring is set there are three arc Card slot, and insertion mouth is formed between every two adjacent arc-shaped slots, the insertion mouth is connected to arc-shaped slot；And

The puncture awl is arranged in the fixed lid of a positioning far from the end of puncture cannula, and the fixed lid of the positioning connects by one Fixed lid is connect to be connected with the excessive connection ring；The inner circumferential side for being connected and fixed lid is connected and fixed the spaced radial of lid along this If there are three the fixture block being suitable for respectively along three arc-shaped slot rotations, the fixture block is adapted for insertion into the insertion mouth.

In the utility model preferred embodiment, the side wall of described sleeve pipe seat is equipped with the raised line of a protrusion；And

The side wall of the excessive connection ring is equipped with one suitable for the card slot with the raised line interference close-fitting.

Any arc card in the utility model preferred embodiment, in corresponding three arc-shaped slots of the card slot Slot setting；And

The raised line partly protrudes from the outside of the arc-shaped slot after the raised line and the card slot elastic conjunction Face.

In the utility model preferred embodiment, the raised line protrusion is arranged in the part of the arc-shaped slot lateral surface For half arcuate structure.

In the utility model preferred embodiment, the diameter of the protruding portion is less than base portion；

The thickness of the rake is gradually reduced from junction to the lip of itself and stage portion；And

Enlarged in thickness at the lip.

In the utility model preferred embodiment, it is equipped with puncture awl pilot hole in the fixed lid of the positioning, and in institute It states and positions the locating slot that fixed lid lower inside is equipped with annular；

The positioning convex ring of annular is equipped in the upper end for being connected and fixed lid；The positioning convex ring is suitable for and the locating slot It assembles so that the fixed lid of positioning is connected with lid is connected and fixed.

In the utility model preferred embodiment, the side of described sleeve pipe seat is equipped with gas injection valve mounting hole；

Gas injection valve is installed in the gas injection valve mounting hole；Valve switch handle is installed on gas injection valve.

In the utility model preferred embodiment, annular compartment is formed between the puncture cannula and puncture awl；

The lower end of the puncture awl is equipped with the head that outer end has epiconus；

Head middle part outer diameter is greater than the outer diameter of puncture awl and when puncture awl is applied in puncture cannula, the head Epiconus be exposed to puncture cannula lower end；And

The side of the puncture cannula is equipped at least one when puncture outfit is applied in Shi Nengyu annular chamber in puncture outfit casing tube The through-hole of room perforation；

The lower end of the puncture outfit casing tube has angular cut；The puncture above the incision superius of angular cut is arranged in the through-hole The side of casing.

In the utility model preferred embodiment, the head includes cylindrical and is fixed in puncture awl lower end Portion's cylinder；

The epiconus is set to the lower end of middle cylinder, is equipped in frustum of a cone tubular and is fixed in the upper end of middle cylinder Necking cylinder on puncture awl；

The epiconus, middle cylinder and necking cylinder integrated injection molding are in puncture awl lower end.

In the utility model preferred embodiment, the two sides of the epiconus are symmetrically arranged with to be extended along epiconus bus Slice.

Using above-mentioned technical proposal, the utility model has below the utility model has the advantages that the puncture outfit of the utility model is logical Cross use be suitable for respectively corresponding the arc-shaped slot and fixture block being screwed on, be easy to implement between the fixed lid of positioning and excessive connection ring Assembly or disassembly, to take out in-vivo tissue after facilitating doctor to dismantle the two out of puncture cannula.

Further, air shuttle valve includes the valgus being from top to bottom sequentially connected, base portion, stage portion, protruding portion and inclination Portion, i.e., whole air shuttle valve form two panels valve to staircase structural model made of spelling, and puncture awl is smooth to penetrate the resistance not influencing Under the premise of air valve, the air-tightness of puncture outfit structure entirety not only can be enhanced, but also puncture awl can be made to pull out puncture cannula During, air shuttle valve, which is not easy to be reversed, pulls into Eversible structure, i.e., the stability for effectively enhancing the pull resistance of air shuttle valve and using.

Detailed description of the invention

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

Fig. 2 is the configuration schematic diagram of the puncture outfit of the utility model；

Fig. 3 is the schematic diagram of the air shuttle valve of the puncture outfit of the utility model；

Fig. 4 is the schematic diagram of the excessive connection ring of the puncture outfit of the utility model；

Fig. 5 is the configuration schematic diagram two of the puncture outfit of the utility model；

Fig. 6 is the puncture awl of the puncture outfit of the utility model and the schematic cross-sectional view of puncture cannula；

Schematic cross-sectional view when Fig. 7 is the puncture awl extraction of the puncture outfit of the utility model；

Fig. 8 is the part configuration schematic diagram of the puncture outfit of the utility model；

Fig. 9 is the part configuration schematic diagram of the puncture outfit of the utility model.

In figure: puncture cannula 1, puncture awl 2, annular compartment 3, head 4, epiconus 41, middle cylinder 42, necking cylinder 43, through-hole 44, connecting column 45, through-hole 5, slice 6, curved portion 61, wedge-shaped part 62, frustum ring 71, air shuttle valve 200, lip are molded 201, base portion 202, stage portion 203, protruding portion 204, rake 205, valgus 206, casing seat 300, raised line 302, excessively connect Connect ring 400, card slot 401, installation snap ring 402, arc-shaped slot 405, insertion mouth 406, notch 407, inner stopper 408, limit section 409, it positions fixed lid 500, puncture awl pilot hole 502, locating slot 505, be connected and fixed lid 600, fixture block 603, positioning convex ring 605, gas injection valve 701, valve switch handle 703.

Specific embodiment

In order to make the content of the utility model be easier to be clearly understood, below according to specific embodiment and combine attached Figure, is described in further detail the utility model.

It please refers to shown in Fig. 1 and Fig. 2, present embodiments provides a kind of puncture outfit, comprising: puncture cannula 1 and be suitable for interspersed Puncture awl 2 in puncture cannula 1, and the casing seat 300 of cylindrical structure being equipped in the end of puncture cannula 1.

It please refers to shown in Fig. 3, air shuttle valve 200 made of elastic material is equipped in casing seat 300；Air shuttle valve 200 is generally As two panels valve to staircase structural model made of spelling.Specifically, air shuttle valve 200 includes the valgus being from top to bottom sequentially connected 206, base portion 202, stage portion 203, protruding portion 204 and rake 205；Base portion 202 and protruding portion 204 are hollow cylinder structure； Stage portion 203 is the hollow round table structure tilted down；The inclined-plane that rake 205 tilts down, the rake 205 being oppositely arranged Lower part collectively form the lip 201 passed through suitable for puncture awl 2.

Casing seat 300 is provided with excessive connection ring 400 far from one end close-fitting of puncture cannula 1, and air shuttle valve 200 turns up Portion 206 is mounted on the installation snap ring 402 of excessive connection ring 400 to fix air shuttle valve 200.Excessive connection ring 400 is using for example But it is not limited to the mode being welded and fixed and casing seat 300 is connected.

The peripheral side of excessive connection ring 400 sets that there are three arc-shaped slots 405, and in every two adjacent arc-shaped slots 405 Between be formed with insertion mouth 406, insertion mouth 406 be connected to arc-shaped slot 405；And end of the puncture awl 2 far from puncture cannula 1 It is arranged in the fixed lid 500 of a positioning, the fixed lid 500 of the positioning is connected and fixed lid 600 and excessive 400 phase of connection ring by one Even；It is connected and fixed the inner circumferential side of lid 600 and sets that there are three be suitable for respectively along three along the spaced radial for being connected and fixed lid 600 The fixture block 603 that arc-shaped slot 405 rotates, fixture block 603 are adapted for insertion into insertion mouth 406.Insertion mouth 406 is inserted into fixture block 603 In after, rotated along the direction of arc-shaped slot 405, can be realized and be connected and fixed lid 600 and excessively screwing between connection ring 400 It is fixed.Certainly, the quantity of fixture block 603 and arc-shaped slot 405 herein can also be corresponding four, and the present embodiment is only with three Example.

The side wall of casing seat 300 is equipped with the raised line 302 of at least one protrusion；And on the side wall of excessively connection ring 400 Equipped with being suitable for the card slot 401 at least one raised line 302 accordingly interference close-fitting respectively.Optionally, in the side of casing seat 300 Wall is equipped with a raised line 302, and the present embodiment is only by taking one shown in the drawings raised raised line 302 as an example.It is corresponding excessive The side wall of connection ring 400 is equipped with a card slot 401.The corresponding arc-shaped slot 405 of card slot 401 at this time is arranged；And in raised line 302 The lateral surface of arc-shaped slot 405 is partly protruded from raised line 302 after 401 elastic conjunction of card slot.

Protrusion shape between the part and inner stopper 408 of 405 lateral surface of arc-shaped slot after 401 inlay card of raised line 302 and card slot At the limit section 409 for being suitable for accommodating fixture block 603.In this way, rotating fixture block 603 along arc-shaped slot 405 realizes connection When fixing the assembly between lid 600 and excessively connection ring 400, by limiting limit of the section 409 for fixture block 603, raised line 302 The backstop action for fixture block 603 is formed, avoids occurring excessive connection ring in the transport transfer of puncture outfit or use process 400 and it is connected and fixed the problem of disengaging between lid 600, i.e., (external force herein refers to relative to will be excessive in not certain external force Connection ring 400 and the rotary force for being connected and fixed the direction of rotation opposite direction between lid 600 in turn buckle termination process) effect Under, fixture block 603 can not break through the limit of raised line, therefore excessive connection ring 400 can be effectively ensured and be connected and fixed between lid 600 Firmness after assembly.

It please refers to shown in Fig. 8 and Fig. 9, specifically, insertion mouth 406 exists along the axis direction setting of excessive connection ring 400 The peripheral side of excessive connection ring 400, insertion mouth 406 have a notch 407 being connected to arc-shaped slot 405, i.e. insertion mouth 406 It is the region passed through with fixture block 603 that the peripheral side for penetrating through the axis direction of excessive connection ring 400, which forms one, that is, is connected and fixed lid During 600 are that excessive connection ring 400 is assembled, fixture block 603 needs to be inserted into insertion mouth 406, then lacking by insertion mouth 406 407 positions of mouth enter corresponding arc-shaped slot 405.

In order to enable excessive connection ring 400 and the close-fitting being connected and fixed between lid 600, the peripheral side of excessive connection ring 400 It is such to design peripheral side and company so that in excessive connection ring 400 suitable for agreeing with assembly with the inner circumferential side for being connected and fixed lid 600 It connects to fix and will not be formed with biggish gap between this inner circumferential side, to guarantee the firmness connected between the two and stabilization Property.

There are three the case where fixture block 603 to be for the inner circumferential side setting that the present embodiment is only connected and fixed lid 600 with shown in the drawings Example, the peripheral side of excessive connection ring 400 corresponding at this time are set there are three arc-shaped slot 405.

The fixture block 603 and arc-shaped slot 405 of the present embodiment are realized in rotation snapping, and fixture block 603 is firstly inserted into embedding Entrance then enters in arc-shaped slot 405 at the notch 407 by being embedded in mouth, as fixture block 603 is revolved along arc-shaped slot 405 During turning, inner stopper 408 and raised line 302 are housed in after fixture block 603 crosses raised line 302 under the action of rotating force Between in the limit section 409 that is formed, in no external force, (external force herein refers to relative to by excessive connection ring and connection cover Between direction of rotation opposite direction in turn buckle termination process rotary force) under the action of, fixture block 603 can not be from above-mentioned spacing zone Between be detached from 409, that is, need it is certain relative to by excessive connection ring be connected and fixed lid carry out spinner process it is opposite The disengaging that rotary force could make excessive connection ring 400 and be connected and fixed between lid 600, so above structure can be protected effectively In the case that card does not apply certain rotating force under normality use state, excessive connection ring 400 be connected and fixed lid 600 Disengaging will not be generated.Therefore, the structure of this cooperation of the raised line 302 of the present embodiment Yu the cooperation of card slot 401 is provided simultaneously with two kinds Effect, one are that the contraposition in the assembling process realized between excessive connection ring 400 and casing seat 300 is oriented to, and improves set Firmness after assembling between tube socket 300 and excessively connection ring 400 prevents from occurring between casing seat 300 and excessively connection ring 400 Relative movement.Secondly for convenient for forming the position-limiting action after fixture block 603 and 405 spinner of arc-shaped slot, so that excessive connection ring It 400 and is connected and fixed between lid 600 and is not likely to produce disengaging, it is ensured that excessive connection ring 400 connects between the two with lid 600 is connected and fixed The stability and firmness connect.

For the ease of under the action of rotary force, fixture block 603 is convenient for through raised line 302, and the raised line 302 of the present embodiment designs Raised line 302 protrude and in the part of 405 lateral surface of arc-shaped slot be set as half arcuate structure, half arcuate structure can reduce raised line 302 for fixture block 603 drag effect.

Preferably, the diameter of protruding portion 204 is less than base portion 202；Company of the thickness of rake 205 from itself and stage portion 203 The place of connecing to lip 201 is gradually reduced；And the enlarged in thickness at lip 201.In order to further prevent air shuttle valve 200 in puncture awl 2 pull-out puncture cannulas 1 during be drawn as Eversible structure, rake 205 inside (inside herein be relative to lip The connected other sides of mouth 201) several reinforcing ribs are equipped with, so that the tensile property enhancing that air shuttle valve 200 is whole, avoids air shuttle valve 200 cause the resistance of the pull-out process of puncture awl 2.

It please refers to shown in Fig. 5, specifically, being equipped with puncture awl pilot hole 502 in positioning fixed lid 500, and is positioning Fixed 500 lower inside of lid is equipped with locating slot 505；Positioning convex ring 605 is equipped in the upper end for being connected and fixed lid 600；Positioning convex ring 605 are suitable for assembling with locating slot 505 so that the fixed lid 500 of positioning is connected with lid 600 is connected and fixed.

Gas injection valve mounting hole is equipped in the side of casing seat 300；Gas injection valve 701 is installed in gas injection valve mounting hole；Gas injection Valve switch handle 703 is installed on valve 701.

It please refers to shown in Fig. 6 and Fig. 7, is extracted out from puncture cannula 1 for the ease of puncture awl 2, puncture cannula 1 and puncture awl Annular compartment 3 is formed between 2；The lower end of puncture awl 2 is equipped with the head 4 that outer end has epiconus 41；4 middle part outer diameter of head is greater than The outer diameter of puncture awl 2 and when puncture awl 2 is applied in puncture cannula 1, the epiconus 41 of head 4 is exposed under puncture cannula 1 End；And the side of puncture cannula 1 is equipped at least one when puncture outfit is applied in Shi Nengyu annular compartment 3 in puncture outfit casing tube The through-hole 5 of perforation；The lower end of puncture outfit casing tube has angular cut；The puncture set above the incision superius of angular cut is arranged in through-hole 5 The side of pipe 1.The inner wall of puncture cannula 1 conical surface big in the small upper end in lower end.In the structure, when puncture awl 2 extracts puncture cannula 1 out When, be located at through-hole 5 in the middle part of head 4, through-hole 5 is substantially blocked in the middle part of head 4, through-hole 5 and annular compartment 3 substantially every From, this is that intraperitoneal pressure ratio annular compartment 3 is big, and at this moment not reinflated, so head 4 plays booster action, so that The extraction of puncture awl 2 is more laborsaving, and extraction difficulty is small.In addition, leading to gas since annular compartment 3 is connected with through-hole 5 The disengaging of through-hole 5 is crossed, so that disengaging gas is smooth when using.Optionally, the quantity of through-hole 5 is two and is symmetricly set on puncture cannula On 1.

Head 4 includes middle cylinder 42 that is cylindrical and being fixed on 2 lower end of puncture awl；Epiconus 41 is set to middle part cylinder The lower end of body 42 is equipped with the necking cylinder 43 for being in frustum of a cone tubular and being fixed on puncture awl 2 in the upper end of middle cylinder 42；Circle Cone 41, middle cylinder 42 and 43 integrated injection molding of necking cylinder are in 2 lower end of puncture awl.In the structure, puncture awl 2 and head Buffering is formed between 4, convenient for the pull of puncture awl 2, two enable head 4 to be fixedly secured in the end of puncture awl 2.Puncture awl 2 lower ends are equipped at least one injection molding through-hole 44；Head 4 is formed in injection molding through-hole 44 when being molded in 2 end of puncture awl The connecting column 45 being linked together with head 4.Firmness when puncture awl 2 is connect with head 4 can be enhanced in such structure.

The two sides of epiconus 41 are symmetrically arranged with the slice 6 extended along 41 bus of epiconus.The setting of slice 6, which is avoided that, to be made Used time hurts abdominal vascular.6 lower ends are sliced to be located above the vertex of a cone of epiconus 41 and form curved portion 61.6 upper ends are sliced to be located at Side and formation wedge-shaped part 62 under the cone of epiconus 41.The design of curved portion 61 between epiconus 41 and slice 6 so that form slow Punching.

It is equipped on the outside of the middle part of puncture cannula 1 and increases structure of rubbing.Increasing structure of rubbing includes that several successively axial directions are distributed in puncture The frustum ring 71 in 1 outside of casing, the big end of the frustum ring 71 are located above.Increase rub structure design increase puncture cannula 1 with The frictional force of abdomen, avoid using when puncture cannula 1 skid off.

Above specific embodiment has carried out further in detail the purpose of this utility model, technical scheme and beneficial effects It describes in detail bright, it should be understood that the above are only specific embodiments of the present invention, it is practical new to be not limited to this Type, within the spirit and principle of the utility model, any modification, equivalent substitution, improvement and etc. done should be included in this Within the protection scope of utility model.

In the description of the present invention, it should be understood that indicating position or the term of positional relationship are based on attached drawing Shown in orientation or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion institute The equipment or element of finger must have a particular orientation, is constructed and operated in a specific orientation, therefore should not be understood as to this reality With novel limitation.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis Concrete condition understands the concrete meaning of above-mentioned term in the present invention.

It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, or The utility model product using when the orientation or positional relationship usually put, be merely for convenience of description the utility model and letter Change description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation construct and Operation, therefore should not be understood as limiting the present invention.In addition, term " first ", " second ", " third " etc. are only used for area Divide description, is not understood to indicate or imply relative importance.

In addition, the terms such as term "horizontal", "vertical", " pendency " are not offered as requiring component abswolute level or pendency, and It is that can be slightly tilted.It is not to indicate the structure if "horizontal" only refers to that its direction is more horizontal with respect to for "vertical" It has to fully horizontally, but can be slightly tilted.

In the present invention unless specifically defined or limited otherwise, fisrt feature is on or below second feature It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it Between other characterisation contact.Moreover, fisrt feature is on second feature, top and above include fisrt feature the Right above two features and oblique upper, or first feature horizontal height is merely representative of higher than second feature.Fisrt feature is in the second spy Under sign, lower section and fisrt feature included below be directly below and diagonally below the second feature, or be merely representative of fisrt feature level Height is less than second feature.

Claims (10)

1. a kind of puncture outfit characterized by comprising puncture cannula and the puncture awl suitable for being interspersed in the puncture cannula, And the casing seat for the cylindrical structure being equipped in the end of the puncture cannula；

Air shuttle valve made of elastic material is equipped in described sleeve pipe seat；The air shuttle valve includes turning up of being from top to bottom sequentially connected Portion, base portion, stage portion, protruding portion and rake；The base portion and protruding portion are hollow cylinder structure；Stage portion is to tilt down Hollow round table structure；The inclined-plane that the rake tilts down, the lower part for the rake being oppositely arranged are collectively formed suitable for institute State the lip that puncture awl passes through；

Described sleeve pipe seat is provided with excessive connection ring far from one end close-fitting of puncture cannula, and the valgus of the air shuttle valve is mounted on To fix air shuttle valve on the installation snap ring of the excessive connection ring；The peripheral side of the excessive connection ring is set there are three arc card Slot, and insertion mouth is formed between every two adjacent arc-shaped slots, the insertion mouth is connected to arc-shaped slot；And

The puncture awl is arranged in the fixed lid of a positioning far from the end of puncture cannula, and the fixed lid of the positioning is solid by a connection Fixed lid is connected with the excessive connection ring；The inner circumferential side for being connected and fixed lid is equipped with along the spaced radial for being connected and fixed lid Three are suitable for the fixture block respectively along three arc-shaped slot rotations, and the fixture block is adapted for insertion into the insertion mouth.

2. puncture outfit according to claim 1, which is characterized in that the side wall of described sleeve pipe seat is equipped with the convex of a protrusion Item；And

The side wall of the excessive connection ring is equipped with one suitable for the card slot with the raised line interference close-fitting.

3. puncture outfit according to claim 2, which is characterized in that appointing in corresponding three arc-shaped slots of the card slot The setting of one arc-shaped slot；And

The raised line partly protrudes from the lateral surface of the arc-shaped slot after the raised line and the card slot elastic conjunction.

4. puncture outfit according to claim 3, which is characterized in that the raised line protrusion is in the arc-shaped slot lateral surface Part is set as half arcuate structure.

5. puncture outfit according to claim 1, which is characterized in that the diameter of the protruding portion is less than base portion；

The thickness of the rake is gradually reduced from junction to the lip of itself and stage portion；And

Enlarged in thickness at the lip.

6. puncture outfit according to claim 1, which is characterized in that it is equipped with puncture awl pilot hole in the fixed lid of the positioning, And in the locating slot for positioning fixed lid lower inside and being equipped with annular；

The positioning convex ring of annular is equipped in the upper end for being connected and fixed lid；The positioning convex ring is suitable for assembling with the locating slot So that the fixed lid of positioning is connected with lid is connected and fixed.

7. puncture outfit according to claim 1, which is characterized in that the side of described sleeve pipe seat is equipped with gas injection valve mounting hole；

Gas injection valve is installed in the gas injection valve mounting hole；Valve switch handle is installed on gas injection valve.

8. puncture outfit according to claim 1, which is characterized in that form annular chamber between the puncture cannula and puncture awl Room；

The lower end of the puncture awl is equipped with the head that outer end has epiconus；

Head middle part outer diameter is greater than the outer diameter of puncture awl and when puncture awl is applied in puncture cannula, the circle of the head Cone is exposed to puncture cannula lower end；And

The side of the puncture cannula is equipped at least one and passes through when puncture outfit is applied in Shi Nengyu annular compartment in puncture outfit casing tube Logical through-hole；

The lower end of the puncture outfit casing tube has angular cut；The puncture cannula above the incision superius of angular cut is arranged in the through-hole Side.

9. puncture outfit according to claim 8, which is characterized in that the head includes cylindrical and is fixed on puncture awl The middle cylinder of lower end；

The epiconus is set to the lower end of middle cylinder, is equipped in the upper end of middle cylinder in frustum of a cone tubular and is fixed on puncture Necking cylinder on cone；

The epiconus, middle cylinder and necking cylinder integrated injection molding are in puncture awl lower end.

10. puncture outfit according to claim 9, which is characterized in that the two sides of the epiconus are symmetrically arranged with along circular cone The slice that sharp bus extends.