CN217285992U - Simple sealing structure for puncture outfit - Google Patents

Abstract

The utility model discloses a simple sealing structure for puncture outfits, which comprises a sealing valve, a sealing valve pressure ring and a protection cushion pressure ring which are arranged at the two axial ends of the sealing valve, and a sealing body arranged between the protection cushion pressure ring and the sealing valve; wherein the sealing valve comprises a valve body and a membrane body which are integrally formed; wherein the sealing valve pressure ring, the sealing body, the valve body and the protection cushion pressure ring are connected through a column hole matching structure. Compared with the sealing structure used in the puncture outfit in the prior art, the utility model cancels the structure of the sealing seat on one hand, thus reducing the production cost of the whole sealing structure from the raw materials; on the other hand, the assembly difficulty and the assembly cost are also simplified, so that the production cost of the whole structure can be effectively reduced. And for sealing structures, the cumulative effect of assembly errors between the components directly affects the sealability of the final structure. The simplified structure is also advantageous in reducing the cumulative effect of assembly errors.

Description

Simple sealing structure for puncture outfit

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a simple and easy seal structure for puncture ware.

Background

The patent with publication number CN211022999U discloses a puncture outfit and a puncture sealing assembly thereof, which comprises a fish-eye valve, a sealing valve press ring and a sealing seat respectively arranged at two axial ends of the fish-eye valve, and a protection cushion press ring arranged at the axial end part of the sealing seat far away from the fish-eye valve; wherein a swing film is arranged between the protection cushion ring and the fisheye 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 cushion pressure ring, the first base station, the sealing seat, the fisheye valve and the sealing valve pressure ring are connected through a column hole matching structure in an adaptive inserting mode so as to enable the fisheye valve to be compressed and fixed along the axial direction of the fisheye valve.

Above-mentioned structure is whole, need realize its cooperation structure as the transition piece through the clamping ring between fish-eye valve and the swing membrane, and the product of this kind of structure has the numerous and loaded down with trivial details problem of assembly of part in actual production, is difficult to the raw materials cost and the assembly cost of effective control whole product under this condition. And combine the medical treatment policy of promoting people that the country advocated, the requirement to reducing the use cost of medical instrument product improves gradually, so this research design can reduce this kind of medical instrument's of puncture ware manufacturing cost's novel structure is wantonly far away.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple and easy seal structure for puncture ware to solve the technical problem who simplifies the seal structure in the puncture ware.

The utility model discloses a simple and easy seal structure for puncture ware is realized like this:

a simple sealing structure for a puncture instrument, comprising: the sealing valve comprises a sealing valve, a sealing valve pressure ring and a protection cushion pressure ring which are arranged at two axial ends of the sealing valve, and a sealing body arranged between the protection cushion pressure ring and the sealing valve; wherein

The sealing valve comprises a valve body and a membrane body which are integrally formed; wherein

And the sealing valve pressure ring, the sealing body, the valve body and the protection cushion pressure ring are connected through a column hole matching structure.

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

the fisheye part is continuously provided with a plurality of wrinkles along the circumferential direction;

the membrane body comprises an annular base station and an S-shaped swinging part which are integrally formed; the S-shaped swinging part is integrally connected with the fisheye outer ring.

The utility model discloses in the optional embodiment, post hole cooperation structure includes protection backing ring is equipped with a plurality of spliced poles of vertical protrusion along the radial interval ground of this protection backing ring towards the side end face of fisheye outer loop sealing valve clamping ring be equipped with towards the side end face of fisheye clamping ring be suitable for with a plurality of the post hole that the spliced pole was pegged graft, and run through being suitable for a plurality of that is equipped with on the fisheye outer loop the perforation that the spliced pole passed.

In an alternative embodiment of the present invention, the sealing body includes an insertion portion adapted to be inserted between the protection pressing ring and the outer ring of the fisheye, a connection portion integrally connected to the insertion portion to form an L-shaped structure, and a sealing portion connected to the connection portion;

the sealing part 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 connecting columns to pass through.

In an alternative embodiment of the present invention, the S-shaped swinging portion includes a small U-shaped folding portion connected to the fisheye outer ring, and a large U-shaped folding portion connected to the annular base; wherein

The opening of the small U-shaped folding part is opposite to the fisheye part; and

the opening of the large U-shaped folded part faces the fisheye part.

In an alternative embodiment of the present invention, the small U-shaped folding portion and the large U-shaped folding portion have a side wall; and

the big U-shaped folding part is protruded from the shaft end of the annular abutment, which is far away from the fisheye part.

In an alternative embodiment of the present invention, the height of the small U-shaped folding portion along the axial direction of the ring-shaped base is less than the height of the large U-shaped folding portion along the axial direction of the ring-shaped base.

In an alternative embodiment of the present invention, the distance between the two side walls of the small U-shaped fold is the same as or different from the distance between the two side walls of the large U-shaped fold.

By adopting the technical scheme, the utility model discloses beneficial effect once has: compared with the sealing structure used in the puncture outfit in the prior art, the simple sealing structure for the puncture outfit of the utility model cancels the structure of the sealing seat on one hand, thus reducing the production cost of the whole sealing structure from the raw materials; on the other hand, the assembly difficulty and the assembly cost are also simplified, so that the production cost of the whole structure can be effectively reduced. And for sealing structures, the cumulative effect of assembly errors between the components can directly affect the sealability of the final structure. The simplified structure is also advantageous in reducing the cumulative effect of assembly errors.

Furthermore, the fish eye part of the sealing valve is continuously provided with a plurality of wrinkles along the circumferential direction, when a surgical instrument or a puncture rod is inserted, the wrinkles can reduce the resistance when the fish eye part is expanded, the resistance is reduced, and the hand feeling is more flexible during the operation.

In addition, the S-shaped swing part that the diaphragm body that the seal valve includes makes the diaphragm body have certain distortion nature, and such distortion nature demonstrates the follow-up nature of cooperation puncture needle rod activity along with the puncture needle rod activity in, and the follow-up nature makes the valve body guarantee with puncture needle rod between under the good closely matched prerequisite, can also compromise and reduce the resistance of fisheye seal valve to puncture needle rod activity.

Drawings

Fig. 1 is a first view structural diagram of a simple sealing structure for a puncture outfit according to the present invention;

fig. 2 is a second view structural diagram of the simple sealing structure for the puncture outfit of the present invention;

fig. 3 is a schematic view of the exploded and exploded structure of the simple sealing structure for puncture outfit of the present invention;

fig. 4 is a schematic cross-sectional structural view of the simple sealing structure for the puncture outfit of the present invention;

fig. 5 is a first view structural diagram of a sealing valve of the simple sealing structure for the puncture outfit according to the present invention;

fig. 6 is a second view structural diagram of the sealing valve with a simple sealing structure for the puncture outfit according to the present invention;

fig. 7 is a third view structural diagram of the sealing valve with a simple sealing structure for the puncture outfit according to the present invention;

fig. 8 is a schematic sectional view taken along the line a in fig. 7.

In the figure: thesealing valve 100, the throughhole 101, the sealingvalve pressing ring 200, thecolumn hole 201, theprotection cushion ring 300, the connectingcolumn 301, the sealing body 500, the embeddingpart 501, the connectingpart 502, thesealing part 505, the throughhole 506, the fisheyeouter ring 11, thefisheye part 12, the throughhole 13, thefold 15, the columnar throughhole 16, theannular base 31, the large U-shaped foldingpart 32, the columnar matchinghole 33 and the small U-shaped foldingpart 34.

Detailed Description

In order that the present invention may be more clearly understood, the following detailed description is given with reference to the accompanying drawings.

Referring to fig. 1 to 8, the present embodiment provides a simple sealing structure for a puncture device, including: thesealing valve 100, the sealingvalve pressure ring 200 and the protectiongasket pressure ring 300 which are arranged at two axial ends of thesealing valve 100, and the sealing body 500 arranged between the protectiongasket pressure ring 300 and thesealing valve 100; wherein thesealing valve 100 comprises an integrally formed valve body and diaphragm body; wherein the sealingvalve pressure ring 200, the sealing body 500, the valve body and the protectiongasket pressure ring 300 are connected through a column hole matching structure.

In detail, first, thesealing valve 100 includes a valve body and a diaphragm body that are integrally formed; the valve body comprises a fisheyeouter ring 11 in a circular structure and a raisedfisheye part 12 integrally formed with the fisheyeouter ring 11; a throughhole 13 suitable for the puncture needle rod to pass through is arranged on thefisheye part 12; thefisheye part 12 is provided with a plurality ofwrinkles 15 continuously and firstly along the circumferential direction; through being provided with a plurality offolds 15 infisheye 12 along its circumferencial direction in succession, when surgical instruments or puncture rod are inserted, resistance whenfisheye 12 inflation can be reduced tofold 15, and the resistance has reduced, feels more nimble during the operation.

Secondly, the column hole matching structure comprises a plurality of connectingcolumns 301 which are vertically protruded at intervals along the radial direction of theprotection cushion ring 300 on the side end surface of theprotection cushion ring 300 facing the fisheye outer ring, a plurality ofcolumn holes 201 which are suitable for being plugged with the connectingcolumns 301 and are arranged on the side end surface of the sealingcushion ring 200 facing thefisheye pressing ring 11, and throughholes 101 which are suitable for the connectingcolumns 301 to pass through and are arranged on the fisheyeouter ring 11 in a penetrating manner.

Furthermore, the sealing body 500 includes aninsertion portion 501 adapted to be inserted between the protection pad pressingring 300 and the fisheyeouter ring 11, aconnection portion 502 integrally connected to theinsertion portion 501 to have an L-shaped structure, and asealing portion 505 connected to theconnection portion 502; thesealing portion 505 is formed by a plurality of sealing flaps in a manner of abutting or partially overlapping; thesealing portion 505 in this embodiment may be a one-piece sealing membrane having a "Y" or "cross" shaped groove, or a duckbill-shaped sealing surface formed by abutting a plurality of sealing lobes, or a sealing surface formed by overlapping four sealing lobes having a central angle greater than or equal to 90 °, where the sealing body 500 may be made of, for example, but not limited to, rubber or silicone. Theinsertion portion 501 has a throughhole 506 adapted to pass through the plurality ofconnection posts 301. That is, thefitting portion 501 of the sealing body 500 also causes the sealing body 500 to be pressed and fixed between the protection grommet 300 and the fisheyeouter ring 11 by the engagement of theconnection post 301 and the throughhole 506.

In addition, it should be noted that, in relation to thesealing valve 100, the film body includes theannular base 31 and the S-shaped swinging portion which are integrally formed; the S-shaped oscillating portion is integrally connected to the fisheyeouter ring 11. The S-shaped swinging part comprises a smallU-shaped folding part 34 connected with the fisheyeouter ring 11 and a largeU-shaped folding part 32 connected with theannular base 31; wherein the opening of the smallU-shaped folding part 34 is opposite to thefisheye part 12; and the opening of the large U-fold 32 is directed towards thefisheye 12. For the membrane body of the embodiment, the membrane body and the valve body are made of materials with certain elasticity, such as but not limited to medical polymer plastics, such as medical polytetrafluoroethylene, or rubber or silica gel, wherein the membrane body is in good following performance along with the movement of the puncture needle rod through the elastic matching of the materials and the S-shaped swinging part.

More particularly, with reference to the drawings, the small U-fold 34 shares a side wall with the large U-fold 32; and the large U-fold 32 projects from the end of theannular abutment 31 remote from thefisheye 12. Theoretically, the distortion of the S-shaped swing portion formed by the small U-shaped foldedportion 34 and the large U-shaped foldedportion 32 is affected by the height of the small U-shaped foldedportion 34 in the axial direction of thering base 31 and the height of the large U-shaped foldedportion 32 in the axial direction of thering base 31, i.e., the greater the height in the axial direction of thering base 31, the greater the space for distortion of the S-shaped swing portion. However, in consideration of the consideration of reducing the influence of the too high height of the small U-shaped foldedportion 34 along the axial direction of theannular base 31 on the movement of the valve body along with the puncture needle rod on the premise of effectively ensuring the distortion space of the S-shaped swinging portion, the height of the small U-shaped foldedportion 34 along the axial direction of theannular base 31 is smaller than the height of the large U-shaped foldedportion 32 along the axial direction of theannular base 31. Namely, the height of the large U-shaped foldingpart 32 along the axial direction of theannular base 31 is fully utilized to provide a relatively large distortion space for the S-shaped swinging part, and the height of the smallU-shaped folding part 34 along the axial direction of theannular base 31 is controlled in combination to provide the distortion space for the S-shaped swinging part and simultaneously reduce the influence on the follow-up of the valve body relative to the puncture needle rod.

Finally, it should be noted that, for the distortion of the S-shaped swinging portion, besides the influence of the height of the small U-shaped foldedportion 34 along the axial direction of theannular base 31 and the height of the large U-shaped foldedportion 32 along the axial direction of theannular base 31, the influence of the size of the space between the two side walls of the small U-shaped foldedportion 34 and the size of the space between the two side walls of the large U-shaped foldedportion 32 may also be influenced, where, for example, the space between the two side walls of the small U-shaped foldedportion 34 and the space between the two side walls of the large U-shaped foldedportion 32 may be the same or different, for example, by designing the space between the two side walls of the small U-shaped foldedportion 34 to be larger than the space between the two side walls of the large U-shaped foldedportion 32, so as to compensate for the fact that the height of the small U-shaped foldedportion 34 along the axial direction of theannular base 31 is smaller than the height of the large U-shaped foldedportion 32 along the axial direction of theannular base 31, this improves the contribution of thesmall U-folded portion 34 to the S-shaped swing portion distortion deformability.

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", "suspended" and the like do not imply that the components are absolutely horizontal or suspended, 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 expressly stated or limited otherwise, a first feature may comprise a first and a second feature in direct contact, or the first and second features may be in contact by means of another feature not in direct contact but in between. 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 (8)

1. A simple sealing structure for a puncture instrument, comprising: the sealing valve, the sealing valve pressure ring and the protection cushion pressure ring which are arranged at two axial ends of the sealing valve, and the sealing body arranged between the protection cushion pressure ring and the sealing valve; wherein

The sealing valve comprises a valve body and a membrane body which are integrally formed; wherein

And the sealing valve pressure ring, the sealing body, the valve body and the protection cushion pressure ring are connected through a column hole matching structure.

2. The simple sealing structure for the puncture outfit according to claim 1, wherein the valve body comprises a fisheye outer ring in a circular ring structure, 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;

the fisheye part is continuously provided with a plurality of wrinkles along the circumferential direction;

the membrane body comprises an annular base station and an S-shaped swinging part which are integrally formed; the S-shaped swinging part is integrally connected with the fisheye outer ring.

3. The simple sealing structure for the puncture outfit according to claim 2, wherein the post hole matching structure comprises a plurality of connecting posts which are provided with vertical protrusions at intervals along the radial direction of the protection cushion ring at the side end surface of the protection cushion ring facing the outer ring of the fish eye, a plurality of post holes which are provided at the side end surface of the sealing cushion ring facing the fish eye ring and are suitable for being plugged with the connecting posts, and a plurality of through holes which are provided at the outer ring of the fish eye and are suitable for the connecting posts to pass through.

4. The simple sealing structure for a puncture instrument according to claim 3, wherein the sealing body includes an embedding portion adapted to be embedded between the protection grommet and the outer ring of the fisheye, a connecting portion integrally connected to the embedding portion to have an L-shaped configuration, and a sealing portion connected to the connecting portion;

the sealing part 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 connecting columns to pass through.

5. The easy sealing structure for a puncture outfit according to claim 2, wherein the S-shaped swing portion comprises a small U-shaped folded portion connected to the outer ring of the fisheye and a large U-shaped folded portion connected to the annular abutment; wherein

The opening of the small U-shaped folding part is opposite to the fisheye part; and

the opening of the large U-shaped folding part faces the fisheye part.

6. The easy sealing structure for a puncture instrument according to claim 5, wherein the small U-fold and the large U-fold share a side wall; and

the big U-shaped folding part is protruded from the shaft end of the annular abutment, which is far away from the fisheye part.

7. The easy sealing structure for a puncture instrument according to claim 6, wherein the height of the small U-folded portion in the axial direction of the ring abutment is smaller than the height of the large U-folded portion in the axial direction of the ring abutment.

8. The simple sealing structure for a puncture instrument according to any one of claims 5 to 7, wherein the distance between the two side walls of the small U-fold is the same as or different from the distance between the two side walls of the large U-fold.

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