CN211022999U

CN211022999U - Puncture outfit and puncture sealing assembly thereof

Info

Publication number: CN211022999U
Application number: CN201921580987.3U
Authority: CN
Inventors: 李韬; 吴惟民
Original assignee: Changzhou Healthypower Medical Instrument Co ltd
Current assignee: Jiangsu jianruibao Medical Technology Co., Ltd
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2020-07-17
Anticipated expiration: 2029-09-20

Abstract

The utility model discloses a puncture outfit and a puncture sealing assembly thereof, which comprises a fisheye valve, a fisheye valve pressure ring and a sealing seat which are respectively arranged at the two axial ends of the fisheye valve, and a protection pad pressure ring arranged at the axial end part of the sealing seat far away from the fisheye valve; wherein a swing film is arranged between the protective pad compression ring and the fish-eye valve in the axial direction; the swinging film is provided with an annular first base station which is suitable for being abutted against the sealing seat and the protection cushion pressing ring simultaneously; and the protection pad pressing ring, the first base station, the sealing seat, the fisheye valve and the fisheye valve pressing ring are connected through the adaptive inserting column hole matching structure to realize that the fisheye valve is pressed and fixed along the axial direction of the fisheye valve. The utility model discloses a seal assembly stability and the gas tightness of puncture ware are better.

Description

Puncture outfit and puncture sealing assembly thereof

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a puncture ware and puncture seal assembly thereof.

Background

The patent with publication number CN106264685A discloses a puncture device, which comprises a puncture sealing module, a sealing component, a fixing component and a buffer component arranged between the sealing component and the fixing component, wherein the sealing component can swing in a certain range relative to the fixing component through the buffer component; the sealing assembly comprises a positioning seat and the fisheye valve, wherein the positioning seat is used for realizing relative fixation of the position of the fisheye valve and is also used for realizing tight fit between the fisheye valve and other structures, and therefore the stability of the structure after assembly is also considered when the convenience of assembly among the positioning seat, the fisheye valve and other structures is considered.

Secondly, the air tightness of the sealing assembly of the puncture outfit has high requirements in the industry standard, specifically, the fish-eye valve is a sealing member suitable for the puncture needle rod to penetrate through, and the air tightness of the whole sealing assembly is directly influenced by the compression sealing treatment of the upper end surface and the lower end surface of the fish-eye valve. When the puncture needle rod is inserted into the fisheye valve, along with the movement of the puncture needle rod, the axial acting force and the circumferential acting force of the fisheye valve can be caused, so that the fisheye valve deforms in two directions of the axial direction and the circumferential direction, and here, for the circumferential deformation of the fisheye valve, the fisheye valve is provided with a convex fisheye structure, a through hole suitable for the puncture needle rod to penetrate through is formed in the fisheye structure, the through hole is tightly matched with the puncture needle rod, the fisheye structure body is a convex structure, the follow-up property of the puncture needle rod is better, and moreover, the fisheye is integrally made of a material with certain flexibility, so that the circumferential acting force of the puncture needle rod on the fisheye valve in the circumferential direction has little influence on the tightness of the matching between the fisheye valve and the positioning seat. From the axial angle, because the closely cooperate between perforation and the puncture needle bar makes the activity of puncture needle bar can cause the pulling force great to the circumference of fisheye structure, the pulling force effect of here can directly influence the leakproofness of the axial butt joint face between fisheye hair and the positioning seat.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a first purpose provides a puncture seal assembly to solve the technical problem who improves seal assembly stability and gas tightness.

The second purpose of the utility model is to provide a puncture outfit to solve the technical problem who improves seal assembly stability and gas tightness.

The utility model discloses a puncture seal assembly realizes like this:

a puncture sealing assembly adapted for use with a puncture instrument, comprising: the fisheye valve comprises a fisheye valve, fisheye valve pressure rings and sealing seats which are respectively arranged at two axial ends of the fisheye valve, and a protection cushion pressure ring arranged at the axial end part of the sealing seat far away from the fisheye valve; wherein

A swing film is arranged between the protection cushion ring and the fisheye valve in the axial direction; the swing film is provided with an annular first base station which is suitable for being abutted against the sealing seat and the protection cushion pressing ring simultaneously; and

the fisheye valve is compressed tightly fixedly along the axial direction of the fisheye valve through the column hole matching structure that the adaptation is inserted between the protection pad clamping ring, the first base station, the sealing seat, the fisheye valve and the fisheye valve clamping ring.

In a preferred embodiment of the present invention, the post hole matching structure includes a plurality of vertically protruding first posts provided at the end surface of the fisheye valve pressing ring facing the fisheye valve at intervals along the circumferential direction of the fisheye valve pressing ring, a plurality of vertically protruding second posts provided at the end surface of the sealing seat facing the fisheye valve at intervals along the circumferential direction of the sealing seat, a plurality of second post holes provided at the end surface of the fisheye valve pressing ring facing the fisheye valve and adapted to be plugged with the plurality of second posts, a plurality of first post holes provided at the end surface of the sealing seat facing the fisheye valve and adapted to be plugged with the plurality of first posts, and a plurality of matching holes provided at the fisheye valve and adapted to pass through the plurality of first posts and the plurality of second posts;

it is a plurality of the second platform post is with a plurality of first platform post dislocation arrangement is promptly under the cooperation of first platform post and first post hole and mating holes and the cooperation of second platform post and second post hole and mating holes, fisheye valve clamping ring and seal receptacle compress tightly the fisheye valve fixedly.

In a preferred embodiment of the present invention, the column hole matching structure further includes a plurality of third columns which are vertically protruded at intervals along a circumferential direction of the protection pad pressing ring at a side end surface of the protection pad pressing ring facing the first base station, a plurality of third column holes which are provided at a side end surface of the sealing seat facing the protection pad pressing ring and are suitable for being plugged with the plurality of third columns, and through holes which are provided on the first base station and are suitable for the plurality of third columns to pass through;

namely, under the matching action of the third column, the third column hole and the through hole, the swing film is pressed and fixed by the protection cushion pressure ring and the sealing seat.

In a preferred embodiment of the present invention, the puncture sealing assembly further includes a sealing body disposed between the protection pressing ring and the swing film;

the sealing body comprises an embedding part which is suitable for being embedded between the protection gasket ring and the first base station, a connecting part which is integrally connected with the embedding part to form an L-shaped structure, and a sealing part which is connected with the connecting part;

the sealing body is formed by a plurality of sealing flaps in a mode of abutting or partially overlapping;

the embedding part is provided with a through hole suitable for the third columns to pass through.

In a preferred embodiment of the present invention, the fisheye valve includes a fisheye outer ring having a circular ring structure and provided with a fitting hole, and a raised fisheye portion integrally formed with the fisheye outer ring; a through hole suitable for the puncture needle rod to pass through is formed in the fisheye part;

the fisheye valve pressing ring comprises an outer ring part which is provided with the first stand column and is of a circular ring structure, and a circular opening part which is formed by the outer ring part in a surrounding mode and is suitable for the fisheye part to penetrate through;

the sealing seat comprises an annular base which is provided with a second column and is of a circular ring structure, and a circular hole part which is formed by enclosing the annular base and is suitable for the sealing part to penetrate through; and

the protection cushion compression ring comprises an annular body which is provided with a third pillar and is of an annular structure, and an extension part which is integrally connected with the annular body, is bent towards the direction of the sealing part and is of an L-shaped structure with the annular body, wherein the extension part is encircled to form a jack structure which is suitable for inserting a puncture needle rod.

In an optional embodiment of the present invention, a first annular protrusion is disposed on a side end surface of the annular base facing the first base station, and a second annular protrusion is disposed on a side end surface of the annular base facing the fisheye valve; and

the end face, facing the first base station, of the first annular convex part is provided with a first annular triangular frustum which is convex and has a triangular cross section, and the corresponding end face, facing the first annular convex part, of the first base station is provided with a first annular triangular caulking groove which is concavely arranged and is suitable for being matched with the first annular triangular frustum; and

the terminal surface of second annular bellying towards the fisheye valve is equipped with bellied cross-section for triangular second annular triangular frustum, corresponds fisheye valve is equipped with the second annular triangle caulking groove that is suitable for and agrees with second annular triangular frustum that the concave establishment is equipped with towards the terminal surface of second annular bellying.

In a preferred embodiment of the present invention, the first annular triangular frustum is adapted to be in interference fit with the first annular triangular caulking groove; and

the second annular triangular frustum is suitable for being in interference fit with the second annular triangular caulking groove.

a first annular triangular frustum which is convex and has a triangular cross section is arranged on the end surface of the first annular convex part facing the first base station; and

and a second annular triangular frustum with a triangular raised section is arranged on the end surface of the second annular bulge facing the fisheye valve.

The utility model discloses a puncture ware is realized like this:

a puncture instrument, comprising: the puncture sealing assembly.

By adopting the technical scheme, the utility model discloses beneficial effect once has: the utility model discloses a puncture ware and puncture seal assembly thereof, protect the pad clamping ring in the guarantee, first base station, the seal receptacle, the post hole cooperation structure of pegging graft through the adaptation between flake valve and the flake valve clamping ring compresses tightly the flake valve fixedly in order to realize along the axial of flake valve, post hole cooperation structure not only utilizes the protection pad, first base station, the seal receptacle, the convenience when assembling between flake valve and the flake valve clamping ring, and the assembly between the part that post hole cooperation structure realized is compact firm, thus, when carrying out the puncture operation after inserting the puncture ware with the puncture needle bar, even there is violent operating problem and also be difficult for appearing droing of part in the operation process.

Furthermore, the interference fit of the first annular triangular frustum and the first annular triangular caulking groove and the interference fit of the second annular triangular frustum and the second annular triangular caulking groove enable the interference magnitude between the annular triangular frustum and the annular triangular caulking groove to form a buffering effect on the axial acting force brought by the puncture needle rod when the puncture needle rod generates the axial acting force on the fisheye valve, and therefore the air tightness of the sealing assembly can be effectively improved from the angle of axial fit in the operation process of the puncture needle rod.

Drawings

Fig. 1 is a schematic view of a first perspective explosion structure of the puncture sealing assembly of the present invention;

fig. 2 is a schematic view of the second perspective explosion structure of the puncture sealing assembly of the present invention;

FIG. 3 is a schematic view of the whole structure of the puncture outfit of the present invention;

FIG. 4 is a schematic view showing the entire structure of the portion A of FIG. 3, i.e., the puncture sealing assembly of the puncture instrument;

fig. 5 is a schematic cross-sectional view of the portion a of fig. 3, i.e., a puncture sealing assembly of the puncture instrument.

In the figure: the sleeve cover 1, the fish-eye valve 100, the fish-eye outer ring 101, the fish-eye portion 102, the through hole 103, the second annular triangular caulking groove 1011, the fitting hole 105, the swing film 200, the first base 201, the first annular triangular caulking groove 2011, the seal holder 300, the protection gasket 400, the fish-eye valve pressing ring 500, the outer ring portion 507, the circular opening portion 508, the first pillar 501, the second pillar 301, the first pillar hole 302, the third pillar hole 305, the annular base 307, the first annular boss 3071, the first annular triangular boss 3072, the second annular boss 3075, the second annular triangular boss 3078, the circular opening portion 308, the second pillar hole 503, the third pillar 402, the annular body 405, the extension portion 407, the perforation 2013, the seal body 600, the embedding portion 601, the connecting portion 602, the seal portion 603, and the through hole 608.

Detailed Description

In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings.

Example 1:

referring to fig. 1 to 5, the present embodiment provides a puncture sealing assembly suitable for a puncture outfit, including: the fisheye valve 100, the fisheye valve pressing ring 500 and the sealing seat 300 which are suitable for being arranged at two axial ends of the fisheye valve 100, and the protection cushion pressing ring 400 which is arranged at the end of the sealing seat 300 far away from the fisheye valve 100 in the axial direction.

A swing membrane 200 is arranged between the protection pad compression ring 400 and the fisheye valve 100 in the axial direction; the oscillating membrane 200 has an annular first base 201 adapted to abut both the seal holder 300 and the protection packing ring 400; and the protection gasket ring 400, the first base table 201, the sealing seat 300, the fisheye valve 100 and the fisheye valve ring 500 are matched through adaptive splicing column holes to realize the compression and fixation of the fisheye valve 100 along the axial direction of the fisheye valve 100. It should be noted here that, in the wobble film 200 of the present embodiment, the first base 201 is used to achieve the pressing and fixing with the seal holder 300 and the protection gasket 400, and the wobble film 200 further has an attachment portion for attaching to the cannula cover 1 of the puncture instrument.

In detail, the post hole fitting structure adopted in the present embodiment includes a plurality of first posts 501 provided with vertical protrusions at intervals along the circumferential direction of the fisheye valve pressing ring 500 on the end surface of the fisheye valve pressing ring 500 facing the fisheye valve 100, a plurality of second posts 301 provided with vertical protrusions at intervals along the circumferential direction of the seal holder 300 on the end surface of the seal holder 300 facing the fisheye valve 100, a plurality of second post holes 503 provided on the end surface of the fisheye valve pressing ring 500 facing the fisheye valve 100 and adapted to be inserted into the plurality of second posts 301, a plurality of first post holes 302 provided on the end surface of the seal holder 300 facing the fisheye valve 100 and adapted to be inserted into the plurality of first posts 501, and a plurality of fitting holes 105 provided on the fisheye valve 100 and adapted to pass through the plurality of first posts 501 and the plurality of second posts 301, that is, that the fitting of the first posts 501 with the first post holes 302 and the fitting holes 105 and the fitting holes 503 of the second posts 301 with the second post holes 503 and the fitting holes 105 are performed, the fisheye valve 100 is pressed and fixed by the fisheye valve pressing ring 500 and the sealing seat 300. The first column hole 302 does not penetrate the upper and lower end surfaces in the axial direction of the seal holder 300, and similarly, the second column hole 503 does not penetrate the upper and lower end surfaces in the axial direction of the fisheye valve collar 500.

The first column 501 and the second column 301 may be selected to be cylindrical structures, and the first column hole 302, the second column hole 503 and the mating hole 105 are slots of hexagonal structures. To the cooperation of here first stand 501 and first pillar hole 302, the cooperation of second stand 301 and second pillar hole 503 to and the cooperation between mating holes 105 and first stand 501 and second stand 301 all can adopt interference fit's mode to realize the inseparability of cooperation, so not only can improve the firmness of cooperation, can also improve the gas tightness of cooperation. The outer diameters of the first column 501 and the second column 301 may be the same or different, and here, the first column 501 only needs to be fitted to the inner and outer diameters of the first column hole 302 and the fitting hole 105, and the second column 301 needs to be fitted to the inner and outer diameters of the second column hole 503 and the fitting hole 105.

It should be noted that the second columns 301 are arranged offset from the first columns 501, so that the first columns 501 and the second column holes 503 on the fisheye valve pressing ring 500 do not collide, and similarly, the second columns 301 and the first column holes 302 on the sealing seat 300 do not collide. In detail with reference to the accompanying drawings, in relation to the specific positional distribution relationship between the plurality of second columns 301 and the plurality of first column holes 302, in an alternative embodiment, one first column hole 302 is disposed between every two adjacent second columns 301, that is, a staggered distribution structure of the second columns 301 and the first column holes 302 is formed, and correspondingly, in relation to the specific positional distribution relationship between the plurality of first columns 501 and the plurality of second column holes 503, one second column hole 503 is disposed between every two adjacent first columns 501, that is, a staggered distribution structure of the first columns 501 and the second column holes 503 is formed.

In addition, the column hole matching structure further includes a plurality of third columns 402 provided with vertical protrusions at intervals along the circumferential direction of the protection gasket ring 400 on the side end surface of the protection gasket ring 400 facing the first base 201, a plurality of third column holes 305 provided on the side end surface of the sealing seat 300 facing the protection gasket ring 400 and adapted to be inserted into the plurality of third columns 402, and through holes 2013 provided on the first base 201 and adapted to allow the plurality of third columns 402 to pass through; that is, under the cooperation of the third pillar 402, the third pillar hole 305, and the through hole 2013, the protection pressing ring 400 and the seal holder 300 press and fix the wobble film 200. For the specific matching condition of the third column 402 and the third column hole 305, reference may be made to the first column 501 and the first column hole 302, which is not described herein again, and for the through hole 2013, reference may also be made to the matching hole 105.

The needle puncture sealing assembly comprises a protective cushion ring 400, a first base 201, a sealing body 600 and a sealing body 600, wherein the sealing body 600 is arranged between the protective cushion ring 400 and the needle puncture sealing assembly 200, the sealing body 600 comprises an embedding part 601 suitable for being embedded between the protective cushion ring 400 and the first base 201, a connecting part 602 integrally connected with the embedding part 601 to form a L-shaped structure, and a sealing part 603 connected with the connecting part 602, the sealing body 600 is formed by a plurality of sealing flaps in an abutting or partially overlapping mode, the sealing body 600 in the embodiment can be an integrated sealing film and provided with a Y-shaped or cross-shaped groove, or a duckbill-shaped sealing body formed by a plurality of sealing flaps in an abutting mode, or four sealing flap parts with the central angles being larger than or equal to 90 degrees are overlapped to form a sealing body 600, the sealing body 600 can be made of materials such as but not limited to TPE or TPU, a through-hole 608 suitable for a plurality of third table posts 402 to penetrate is arranged on the embedding part 601, the sealing body 600 is pressed between the protective cushion ring 600 and the sealing body 600, the sealing body 600 can be fixed with the needle puncture sealing body 100 in a needle puncture sealing body 100, and the needle puncture sealing body can be pressed against the needle puncture sealing body 100, and the needle puncture sealing body can be prevented from being in the sealing body 100, the sealing body can be directly affected by the needle puncture sealing body, and the needle puncture sealing body puncture, and the needle puncture sealing body.

More specifically, the fisheye valve 100 comprises a fisheye outer ring 101 which is provided with a matching hole 105 and is of a circular ring structure, and a convex fisheye part 102 which is integrally formed with the fisheye outer ring 101; a through hole 103 suitable for the puncture needle rod to pass through is arranged on the fisheye part 102, the inner diameter of the through hole 103 is suitable for being matched with the outer diameter of the puncture needle rod, so that the wall of the through hole 103 forms a circumferential wrapping for the outer side wall of the puncture needle rod.

The fisheye valve pressing ring 500 comprises an outer ring portion 507 which is provided with a first stand column 501 and is of a circular ring structure, a circular opening portion 508 which is formed by enclosing of the outer ring portion 507 and is suitable for the fisheye portion 102 to penetrate through, a sealing seat 300 comprises an annular base 307 which is provided with a second stand column 301 and is of a circular ring structure, a circular hole portion 308 which is formed by enclosing of the annular base 307 and is suitable for the sealing portion 603 to penetrate through, a protection pad pressing ring 400 comprises an annular body 405 which is provided with a third stand column 402 and is of a circular ring structure, an extension portion 407 which is integrally connected with the annular body 405 and is bent towards the direction of the sealing portion 603 so as to form a L-shaped structure with the annular body 405, and a jack structure which is suitable for the needle rod to penetrate through is formed by.

Example 2:

referring to fig. 5, on the basis of the puncture sealing assembly of embodiment 1, the puncture sealing assembly of this embodiment further includes a first annular protrusion 3071 disposed on a side end surface of the annular base 307 facing the first base 201, and a second annular protrusion 3075 disposed on a side end surface of the annular base 307 facing the fisheye valve 100. It should be noted here that the first annular protrusion 3071 avoids the second column 301 and the first column hole 302, i.e., neither the second column 301 nor the first column hole 302 is disposed on the first annular protrusion 3071, and further, the second annular protrusion 3075 also avoids the third column hole 305, i.e., the third column hole 305 is not disposed on the second annular protrusion 3075.

In addition, a first annular triangular frustum 3072 having a triangular cross section and protruding is provided on the end surface of the first annular protruding portion 3071 facing the first base 201, and a first annular triangular caulking groove 2011 adapted to fit with the first annular triangular frustum 3072 is provided on the corresponding end surface of the first base 201 facing the first annular protruding portion 3071. A second annular triangular frustum 3078 with a triangular cross section is arranged on the end surface of the second annular bulge 3075 facing the fisheye valve 100, and a second annular triangular caulking groove 1011 which is concavely arranged and is suitable for being matched with the second annular triangular frustum 3078 is correspondingly arranged on the end surface of the fisheye outer ring 101 of the fisheye valve 100 facing the second annular bulge 3075.

As an example of an alternative embodiment, first annular triangular frustum 3072 is adapted to have an interference fit with first annular triangular indent 2011; and the second annular triangular frustum 3078 is adapted to have an interference fit with the second annular triangular caulking groove 1011.

The interference fit of the first annular triangular frustum 3072 and the first annular triangular caulking groove 2011 and the interference fit of the second annular triangular frustum 3078 and the second annular triangular caulking groove 1011 enable the interference magnitude between the annular triangular frustum and the annular triangular caulking groove to form a buffering effect on the axial acting force brought by the puncture needle rod when the puncture needle rod generates the axial acting force on the fisheye valve 100, so that the air tightness of the sealing assembly can be effectively improved from the angle of axial fit in the operation process of the puncture needle rod.

Example 3:

the puncture sealing assembly provided in this embodiment has substantially the same structure as the puncture sealing assembly of embodiment 2, and is different in that a first annular triangular frustum 3072 having a triangular cross section and protruding is provided on an end surface of the first annular protruding portion 3071 facing the first base 201, a first annular triangular caulking groove 2011 adapted to fit with the first annular triangular frustum 3072 is not provided on a corresponding end surface of the first base 201 facing the first annular protruding portion 3071, and an end surface of the first base 201 facing the first annular protruding portion 3071 is a flat end surface, that is, the first base 201 having a flat end surface is formed to be deformed by pressing against the first annular triangular frustum 3072, thereby improving airtightness in a state where the two are fitted. The end surface of the second annular convex portion 3075 facing the fisheye valve 100 is provided with a second annular triangular frustum 3078 with a triangular raised section, the corresponding end surface of the fisheye outer ring 101 of the fisheye valve 100 facing the second annular convex portion 3075 is not provided with a second annular triangular caulking groove 1011 which is concavely arranged and is suitable for being matched with the second annular triangular frustum 3078, the end surface of the fisheye outer ring 101 of the fisheye valve 100 facing the second annular convex portion 3075 is a flat end surface, namely, the fisheye outer ring 101 with the flat end surface forms extrusion deformation on the second annular convex portion 3075, and the air tightness of the two matching states is improved.

Example 4:

referring to fig. 3, on the basis of the puncture sealing assembly of embodiment 1, embodiment 2, or embodiment 3, the present embodiment provides a puncture device, including: the puncture sealing assembly of example 1 or example 2.

The above embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above embodiments are only examples of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the products of the present invention are used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the mechanism or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the present disclosure, unless otherwise expressly stated or limited, the first feature may comprise both the first and second features directly contacting each other, and also may comprise the first and second features not being directly contacting each other but being in contact with each other by means of further features between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.

Claims

1. A puncture sealing assembly adapted for use with a puncture instrument, comprising: the fisheye valve comprises a fisheye valve, fisheye valve pressure rings and sealing seats which are respectively arranged at two axial ends of the fisheye valve, and a protection cushion pressure ring arranged at the axial end part of the sealing seat far away from the fisheye valve; wherein

2. The puncture sealing assembly according to claim 1, wherein the post hole fitting structure includes a plurality of first posts vertically protruding at intervals along a circumferential direction of the fisheye valve pressing ring on an end surface of the fisheye valve pressing ring facing the fisheye valve, a plurality of second posts vertically protruding at intervals along a circumferential direction of the sealing seat on an end surface of the sealing seat facing the fisheye valve, a plurality of second post holes adapted to be plugged into the plurality of second posts and provided on an end surface of the fisheye valve pressing ring facing the fisheye valve, a plurality of first post holes adapted to be plugged into the plurality of first posts and provided on an end surface of the sealing seat facing the fisheye valve, and a plurality of fitting holes adapted to be passed through by the plurality of first posts and the plurality of second posts and provided on the fisheye valve;

3. The puncture sealing assembly according to claim 2, wherein the post hole matching structure further comprises a plurality of third posts which are provided with vertical protrusions at intervals along the circumferential direction of the protection gasket ring on the side end surface of the protection gasket ring facing the first abutment, a plurality of third post holes which are provided on the side end surface of the sealing seat facing the protection gasket ring and are suitable for being plugged with the third posts, and through holes which are provided on the first abutment and are suitable for the third posts to pass through;

4. The puncture sealing assembly of claim 3, further comprising a seal disposed between the protective grommet and the wobble film;

5. The puncture sealing assembly according to claim 4, wherein the fisheye valve comprises a fisheye outer ring in a circular ring structure provided with a matching hole, and a raised fisheye part integrally formed with the fisheye outer ring; a through hole suitable for the puncture needle rod to pass through is formed in the fisheye part;

6. The puncture sealing assembly according to claim 5, wherein a first annular projection is provided on a side end surface of the annular base facing the first abutment, and a second annular projection is provided on a side end surface of the annular base facing the fisheye valve; and

7. The puncture seal assembly of claim 6, wherein the first annular triangular frustum is adapted for an interference fit with a first annular triangular caulking groove; and

8. The puncture sealing assembly according to claim 5, wherein a first annular projection is provided on a side end surface of the annular base facing the first abutment, and a second annular projection is provided on a side end surface of the annular base facing the fisheye valve; and

9. A puncture instrument comprising the puncture sealing assembly according to any one of claims 1 to 8.