CN219480271U

CN219480271U - Sealing cap, puncture sleeve and puncture outfit

Info

Publication number: CN219480271U
Application number: CN202222225939.0U
Authority: CN
Inventors: 林嘉伟; 陈曦
Original assignee: Baisheng Medical Co ltd
Current assignee: Baisheng Medical Co ltd
Priority date: 2022-08-23
Filing date: 2022-08-23
Publication date: 2023-08-08
Anticipated expiration: 2032-08-23

Abstract

The utility model discloses a sealing cap, a puncture sleeve and a puncture device, wherein the puncture sleeve is applied to the puncture device, and the sealing cap is applied to the puncture sleeve. The sealing cap includes: a sealing cap body; the circumference of the fixing frame is arranged in the sealing cap body through a plurality of elastic supporting pieces; the hemispherical silica gel piece is arranged on the fixing frame. Compared with the structure that floating is realized through the wavy silica gel ring in the traditional structure, the sealing cap and the fixing frame have the advantages that the elastic supporting piece is not torn, the situation that the wrinkles cannot be reset is avoided, and the working stability and the reliability are higher. Compared with the wavy silica gel ring, the elastic support piece is beneficial to reducing the production cost, reducing the installation requirement and improving the production and assembly efficiency.

Description

Sealing cap, puncture sleeve and puncture outfit

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a sealing cap, a puncture cannula and a puncture outfit.

Background

The puncture outfit mainly comprises a puncture cone, a puncture sleeve and a sealing sleeve, wherein the sealing sleeve is detachably arranged at the upper end of the puncture sleeve, and the puncture cone can be inserted into the sealing sleeve and the puncture sleeve and is detachably connected with the sealing sleeve. The seal cover mainly comprises an upper cover, a bottom cover, a hemispherical silica gel piece and a wavy silica gel ring, wherein the upper cover is fixed on the bottom cover, the hemispherical silica gel piece is fixed between the upper cover and the bottom cover through the wavy silica gel ring, a self-sealing perforation is formed in the center of the hemispherical silica gel piece, and a puncture cone can be inserted into the self-sealing perforation from a through hole of the upper cover to enter a puncture sleeve. The traditional structure has poor sealing performance, the wavy silica gel ring is easy to tear, and in practical application, the situation that the wrinkles cannot be reset exists. And the cost is high.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the sealing cap which can solve the defect of the wavy silica gel ring.

The utility model also provides a puncture cannula with the sealing cap.

And a puncture outfit using the puncture cannula.

An embodiment of the sealing cap according to the first aspect of the present utility model comprises: a sealing cap body; the circumference of the fixing frame is arranged in the sealing cap body through a plurality of elastic supporting pieces; the hemispherical silica gel piece is arranged on the fixing frame.

The sealing cap provided by the embodiment of the utility model has at least the following beneficial effects: compared with the structure that floating is realized through the wavy silica gel ring in the traditional structure, the sealing cap and the fixing frame have the advantages that the elastic supporting piece is not torn, the situation that the wrinkles cannot be reset is avoided, and the working stability and the reliability are higher. Compared with the wavy silica gel ring, the elastic support piece is beneficial to reducing the production cost, reducing the installation requirement and improving the production and assembly efficiency.

According to some embodiments of the utility model, the sealing cap body is provided with:

the upper cover is provided with a central through hole in the center;

the base, the base has lateral wall, support floor and installation cover, the lateral wall with the week side edge connection of upper cover is fixed, the installation cover coaxial setting is in the lateral wall and through support the floor is connected fixedly, support the floor with be formed with between the upper cover and be used for the installation space of mount.

According to some embodiments of the utility model, the outer side wall is provided with a positioning column at one end of the supporting rib plate near the upper cover, and the elastic supporting piece comprises a spring sleeved on the positioning column.

According to some embodiments of the utility model, an elastic seal is provided between the mount and the mounting sleeve or the support rib.

According to some embodiments of the utility model, a first positioning groove is formed in the fixing frame, a second positioning groove is formed in the mounting sleeve corresponding to the first positioning groove, and the elastic sealing piece comprises a silica gel sealing ring matched with the first positioning groove and the second positioning groove and a TPU film arranged between the two silica gel sealing rings.

According to some embodiments of the utility model, the silicone gasket is of unitary construction with the TPU film.

According to some embodiments of the utility model, the upper cover is provided with a snap-fit connection on both sides of the central through hole, and the outer surface of the mounting sleeve is provided with threads.

According to some embodiments of the utility model, the fixing frame is provided with a lower ring and an upper ring thermally sealed on the lower ring, and the upper end of the hemispherical silica gel piece is pressed between the upper ring and the lower ring.

The puncture cannula according to an embodiment of the present utility model is provided with a sealing cap of any of the above-described structures.

According to the puncture outfit provided by the embodiment of the utility model, the puncture cannula is arranged.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a cross-sectional view of one construction of the present utility model;

FIG. 2 is an exploded view of the present utility model;

FIG. 3 is a schematic view of an installation of the mount;

fig. 4 is an enlarged schematic view of the area a in fig. 3.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the direction or positional relationship indicated with respect to the description of the orientation, such as up, down, etc., is based on the direction or positional relationship shown in the drawings, is merely for convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the apparatus or element 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 utility model.

In the description of the present utility model, plural means two or more. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 to 4, a sealing cap according to an embodiment of the present utility model includes a sealing cap body, a fixing frame, and a hemispherical silica gel member 400. The circumference of mount is installed in the sealed cap body through a plurality of elastic support piece. The hemispherical silica gel member 400 is disposed on the fixing frame. Compared with the structure that floating is realized through the wavy silica gel ring in the traditional structure, the sealing cap and the fixing frame have the advantages that the elastic supporting piece is not torn, the situation that the wrinkles cannot be reset is avoided, and the working stability and the reliability are higher. Compared with the wavy silica gel ring, the elastic support piece is beneficial to reducing the production cost, reducing the installation requirement and improving the production and assembly efficiency.

It will be appreciated that the spring 500, or other structure functionally similar to the spring 500, may be employed as the resilient support, as long as it is capable of providing a floating fixation of the mount within the seal cap body. And the number of the elastic supporting members can be flexibly set according to the needs, such as three, four, six and the like in the circumferential direction, which are not particularly limited herein.

Referring to fig. 1 and 2, in some embodiments, the sealing cap body includes two parts, an upper cover 100 and a base 200. The center of the upper cover 100 is provided with a center through hole 101, and two sides of the center through hole 101 are provided with clamping interfaces 102. The central through hole 101 is used for the puncture of puncture awl, and the joint mouth 102 is used for the joint of puncture awl to be fixed. The base 200 has an outer side wall 201, support ribs 202, and a mounting sleeve 203, and the outer side wall 201 and the peripheral edge of the upper cover 100 are fixedly connected by heat-sealing, bonding, tightening, or the like. The mounting sleeve 203 is coaxially disposed in the outer sidewall 201 and is fixedly connected by the support rib 202, and a mounting space for mounting the fixing frame is formed between the support rib 202 and the upper cover 100. Wherein the outer sidewall 201, the support rib 202, and the mounting sleeve 203 may be integrally formed. By adopting the structural arrangement of the embodiment, the sealing cap body is designed and processed by being divided into two parts, so that the overall production difficulty of the sealing cap body can be reduced. And meanwhile, the fixing frame and the hemispherical silica gel piece 400 are convenient to install. Wherein the outer side wall 201 of the mounting sleeve 203 is threaded for mounting to a puncture cannula.

Referring to fig. 4, the spring 500 is used as the elastic support, in order to facilitate installation of the spring 500, in some embodiments, the outer side wall 201 is provided with a positioning column 204 at one end of the support rib 202 near the upper cover 100, and meanwhile, the outer side of the fixing frame is correspondingly provided with an installation column 303, and two ends of the spring 500 are sleeved on the positioning column 204 and the installation column 303.

Since the fixing frame is floatingly installed in the installation space formed between the upper cover 100 and the base 200 by the spring 500, the circumferential side and the lower side of the fixing frame are overhead areas, and an elastic sealing member 600 is provided between the fixing frame and the installation sleeve 203 or the supporting rib 202 in order to secure sealability. Sealing of the mounting sleeve 203 position is achieved by the elastomeric seal 600 in combination with the hemispherical silicone 400.

Referring to fig. 1, in some embodiments, the mount is of annular configuration and is sized to fit the mounting sleeve 203. The bottom of mount is provided with first constant head tank, and the upper end of installation cover 203 corresponds to and is provided with the second constant head tank. The elastic sealing member 600 comprises a silicone sealing ring 601 adapted to the first positioning groove and the second positioning groove, and a TPU film 602 arranged between the two silicone sealing rings 601. In this embodiment, the elastic sealing member 600 is clamped in the first positioning groove and the second positioning groove through the silica gel sealing ring 601, so that the sealing effect and the installation stability can be ensured. At the same time, the TPU film 602 has excellent stretching deformation capability, and can be matched with the floating of a fixing frame to ensure the sealing performance.

It is understood that the silicone sealing ring 601 and the TPU film 602 may be configured as an integral structure, or may be fixed by using other manners such as hot melt bonding, adhesion, etc.

To achieve the installation of the hemispherical silica gel member 400, in some embodiments, the fixing frame is provided with an upper ring 301 and a lower ring 302, the outer edge positions of the upper ring 301 and the lower ring 302 are sealed by a heat sealing process, and the upper end of the hemispherical silica gel member 400 is pressed between the upper ring 301 and the lower ring 302. Thus, the tightness between the fixing frame and the hemispherical silica gel member 400 can be ensured.

In addition, the utility model also provides a puncture cannula provided with the sealing cap in any embodiment and a puncture outfit provided with the puncture cannula. It can be appreciated that the puncture cannula or the puncture outfit can effectively solve the defects of the traditional structure by applying the sealing cap.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims

1. A sealing cap, comprising:

a sealing cap body;

the circumference of the fixing frame is arranged in the sealing cap body through a plurality of elastic supporting pieces;

the hemispherical silica gel piece is arranged on the fixing frame.

2. The sealing cap according to claim 1, wherein the sealing cap body is provided with:

the upper cover is provided with a central through hole in the center;

3. The sealing cap of claim 2, wherein the outer side wall is provided with a locating post at an end of the support rib adjacent the upper cover, and the resilient support comprises a spring sleeved on the locating post.

4. The sealing cap of claim 2, wherein an elastic seal is provided between the mount and the mounting sleeve or the support rib.

5. The sealing cap of claim 4, wherein a first positioning groove is formed in the fixing frame, a second positioning groove is formed in the mounting sleeve corresponding to the first positioning groove, and the elastic sealing element comprises a silica gel sealing ring matched with the first positioning groove and the second positioning groove, and a TPU film arranged between the two silica gel sealing rings.

6. The sealing cap of claim 5, wherein the silicone gasket is of unitary construction with the TPU film.

7. The sealing cap of claim 2, wherein the upper cover is provided with snap-fit interfaces on both sides of the central through hole, and the outer surface of the mounting sleeve is provided with threads.

8. The sealing cap according to any one of claims 1 to 7, wherein the fixing frame is provided with a lower ring and an upper ring heat-sealed on the lower ring, and an upper end of the hemispherical silica gel member is pressed between the upper ring and the lower ring.

9. A puncture cannula, characterized in that a sealing cap according to any of claims 1 to 8 is provided.

10. A puncture device provided with the puncture cannula according to claim 9.