CN210931712U

CN210931712U - Check valve and detachable check valve joint

Info

Publication number: CN210931712U
Application number: CN201920934672.8U
Authority: CN
Inventors: 徐振亮; 齐梦超
Original assignee: TIANJIN BOLANG SCIENCE AND TECHNOLOGY DEVELOPMENTCO Ltd
Current assignee: TIANJIN BOLANG SCIENCE AND TECHNOLOGY DEVELOPMENTCO Ltd
Priority date: 2019-06-20
Filing date: 2019-06-20
Publication date: 2020-07-07
Anticipated expiration: 2029-06-20

Abstract

The utility model provides a check valve, including round hole gasket and flat to cylindrical excessive closed angle type structure, the one end of closed angle type structure is duckbilled type structure, and duckbilled type structure's pointed end is towards the apparatus passageway, and closed angle type structure's the other end is columniform grafting portion, but the grafting is connected between grafting portion and the round hole gasket, and the flat pointed end department of duckbilled type structure is equipped with a seam of inserting that can open and shut, and the center department of round hole gasket is equipped with a through-hole, and the apparatus runs through the through-hole in proper order from outside to inside and stitches with inserting. The detachable one-way valve joint comprises the one-way valve, a valve seat and a locking joint. The utility model discloses following beneficial effect has: when the instrument is used in the instrument channel, water in the instrument channel can be prevented from flowing outwards, and the instrument inlet is provided with the guide structure with the horn mouth, so that the instrument can be quickly positioned when being inserted, and the operation process is simpler.

Description

Check valve and detachable check valve joint

Technical Field

The utility model belongs to the technical field of medical valve and specifically relates to a check valve and can dismantle check valve joint is related to.

Background

In many procedures during a medical procedure, surgical forceps or surgical fibers, which are instruments that pass through an "instrument channel," are used. When in use, the channel is internally provided with fluid which is generated during operation, particularly in operations which need to inject fluid into a human body, such as cystoscopy and gynecological hysteroscopy. The valve of the instrument channel can play a role in isolation. A valve switch is generally arranged on one side of the inlet end of the instrument channel, and instruments can be normally inserted into the channel only by opening the instrument valve through rotation.

Disclosure of Invention

In view of this, the utility model aims at providing a check valve and can dismantle check valve joint can all seal the passageway when using medical operation pincers and static when not using under two kinds of circumstances, need not to operate the valve during the use, during the direct port through the direction inserted the apparatus passageway, the check valve can the self-adaptation seal.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the utility model provides a check valve, includes round hole gasket and flat to cylindrical excessive closed angle type structure, the inside cavity of closed angle type structure, the one end of closed angle type structure is duckbilled type structure, duckbilled type structure's most advanced towards the apparatus passageway, closed angle type structure's the other end is columniform grafting portion, can peg graft between grafting portion and the round hole gasket and be connected, duckbilled type structure flat's most advanced department is equipped with a seam of inserting that can open and shut, the center department of round hole gasket is equipped with a through-hole, the apparatus runs through-hole and seam of inserting in proper order from outside to inside.

Further, the circular hole sealing piece and the sharp-angled structure are made of elastomer materials.

Further, the round hole sealing piece and the sharp-angled structure are connected through the connecting piece, and when the round hole sealing piece and the sharp-angled structure are opened, the round hole sealing piece and the sharp-angled structure cannot be completely separated.

Further, the round hole sealing piece and the sharp-angled structure are two independent accessories which are separated, and the round hole sealing piece and the sharp-angled structure can be completely separated when opened.

The utility model provides a can dismantle check valve connects, includes foretell check valve, still includes disk seat and locking joint, the tip at the apparatus passageway is connected to the disk seat, and the check valve can be dismantled and insert in the disk seat, and locking joint's one end can be dismantled and lock on the disk seat, wraps up the check valve in the disk seat, and the other end that locking joint is equipped with the apparatus import.

Further, the instrument inlet is a bell mouth.

Furthermore, the locking joint is in threaded connection with the valve seat.

Compared with the prior art, a check valve and can dismantle check valve joint, have following beneficial effect: when the instrument is used in the instrument channel, water in the instrument channel can be prevented from flowing outwards, and the instrument inlet is provided with the guide structure with the horn mouth, so that the instrument can be quickly positioned when being inserted, and the operation process is simpler.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural view of the check valve of the present invention in an open state of a one-piece structure;

FIG. 2 is a schematic view of the structure of FIG. 1 in a fastened state;

FIG. 3 is a front view of FIG. 1;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;

FIG. 5 is a right side view of FIG. 3;

FIG. 6 is a cross-sectional view taken along the line A-A in FIG. 5;

FIG. 7 is a cross-sectional view taken along plane C-C of FIG. 5;

FIG. 8 is a left side view of FIG. 2;

FIG. 9 is a cross-sectional view taken along plane D-D of FIG. 8;

FIG. 10 is a schematic structural view of the check valve of the present invention in a buckled state with a split structure;

FIG. 11 is a schematic view of the structure of the cusp-type structure of FIG. 10;

FIG. 12 is a schematic view of the circular hole sealing piece of FIG. 10;

fig. 13-14 are schematic perspective views of the detachable one-way valve joint of the present invention;

FIG. 15 is a front view of the removable one-way valve fitting;

FIG. 16 is a left side view of FIG. 13;

FIG. 17 is a cross-sectional view taken along plane E-E of FIG. 16;

FIG. 18 is a schematic view of FIG. 16 rotated 90;

FIG. 19 is a cross-sectional view taken along plane F-F of FIG. 18;

FIG. 20 is a schematic view of the detachable one-way valve joint of the present invention in use;

description of reference numerals:

1-circular hole sealing piece; 2-connecting the sheet; 3-a sharp-angled structure; 31-duckbill configuration; 32-a plug-in part; 4-inserting a seam; 5-a through hole; 6-a tubular structure; 7-valve seat; 8-locking the joint; 9-apparatus inlet.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1-12, a check valve, including round hole sealing piece 1 and flat to cylindrical excessive closed angle type structure 3, closed angle type structure 3 is inside, closed angle type structure 3's one end is duckbilled type structure 31, duckbilled type structure 31's most advanced towards the apparatus passageway, closed angle type structure 3's the other end is columniform grafting portion 32, can peg graft between grafting portion 32 and the round hole sealing piece 1 and be connected, duckbilled type structure 31 flat's most advanced department is equipped with a plug joint 4 that can open and shut, the center department of round hole sealing piece 1 is equipped with a through-hole 5, the apparatus runs through-hole 5 and plug joint 4 from outside to inside in proper order. The circular hole sealing piece 1 and the sharp-angled structure 3 are made of elastomer materials.

The present case has two kinds of structures:

one is a one-piece structure: as shown in fig. 1-9, the round hole sealing piece 1 and the pointed structure 3 are connected by the connecting piece 2, and the round hole sealing piece 1 and the pointed structure 3 are not completely separated when opened.

The other is a split structure: as shown in fig. 10-12, the circular hole sealing piece 1 and the pointed structure 3 are two separate parts, and when the circular hole sealing piece 1 and the pointed structure 3 are opened, the circular hole sealing piece 1 and the pointed structure 3 are completely separated.

The circular hole sealing piece 1 is provided with a concave part which is buckled to the inserting part 32 of the sharp-angled structure 3. It can also be: the inserting part is a concave part, and the circular hole sealing piece 1 is inserted into the concave part.

The scheme also protects a detachable one-way valve joint, as shown in fig. 13-19, the detachable one-way valve joint comprises the one-way valve, a valve seat 7 and a locking joint 8, the valve seat 7 is connected to the end of an instrument channel, the one-way valve is detachably inserted into a step hole in the valve seat 7, one end of the locking joint 8 is locked on the valve seat 7 through threads, the one-way valve is wrapped in the valve seat 7, the other end of the locking joint 8 is provided with an instrument inlet 9, and the instrument inlet 9 is a bell mouth. The end of the valve seat 7 connected with the instrument channel is a tubular structure 6 which can be directly inserted into the instrument channel. An excessive taper with a guiding function is arranged between the stepped hole and the tubular structure 6, so that an instrument can be conveniently inserted into the instrument channel.

When surgical instruments inserts through the import 9 of the apparatus that can dismantle the check valve joint of present case, the apparatus can insert the apparatus passageway through-hole 5 of round hole gasket 1 and insertional seam 4 of closed angle type structure 3, the insertional seam 4 of check valve can be opened along with inserting of apparatus when inserting, at this moment, it flows out in the clearance between a small amount of liquid follow check valve and the apparatus, flow to round hole gasket 1 department, because the external diameter of apparatus is equivalent with the aperture of through-hole 5, round hole gasket 1 can tightly wrap up the apparatus, form sealedly, prevent rivers outwards to flow out. When the surgical instrument is withdrawn, the inserting seam is automatically closed. The operation process is simpler. The instrument inlet is provided with a guide structure with a flared opening, so that the instrument can be quickly positioned when being inserted.

The structure of the product can be directly connected to the instrument channel of the product. It may also be used as a connector for instrument channels. One end of the channel is configured so that the luer lock can be directly connected to a conventional male luer fitting, as shown in fig. 20.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A one-way valve characterized by: including round hole gasket (1) and flat to cylindrical excessive closed angle type structure (3), closed angle type structure (3) inside cavity, the one end of closed angle type structure (3) is duckbilled type structure (31), the most advanced towards the apparatus passageway of duckbilled type structure (31), the other end of closed angle type structure (3) is columniform grafting portion (32), can peg graft between grafting portion (32) and round hole gasket (1) and be connected, the most advanced department of duckbilled type structure (31) flat is equipped with one and inserts seam (4) that can open and shut, the center department of round hole gasket (1) is equipped with one through-hole (5), the apparatus runs through-hole (5) and inserts seam (4) in proper order from outside to inside.

2. The one-way valve of claim 1, wherein: the round hole sealing piece (1) and the sharp-angled structure (3) are made of elastomer materials.

3. The one-way valve according to claim 1 or 2, wherein: the round hole sealing piece (1) is connected with the sharp-angled structure (3) through the connecting piece (2), and the round hole sealing piece (1) and the sharp-angled structure (3) cannot be completely separated when opened.

4. The one-way valve according to claim 1 or 2, wherein: the round hole sealing piece (1) and the sharp-angled structure (3) are two independent accessories of a split body, and can be completely separated when the round hole sealing piece (1) and the sharp-angled structure (3) are opened.

5. The utility model provides a can dismantle check valve connects which characterized in that: the one-way valve comprises the one-way valve according to any one of claims 1 to 4, and further comprises a valve seat (7) and a locking joint (8), wherein the valve seat (7) is connected to the end part of the instrument channel, the one-way valve is detachably inserted into the valve seat (7), one end of the locking joint (8) is detachably locked on the valve seat (7), the one-way valve is wrapped in the valve seat (7), and the other end of the locking joint (8) is provided with an instrument inlet (9).

6. The removable one-way valve fitting of claim 5, wherein: the instrument inlet (9) is a horn mouth.

7. The removable one-way valve fitting of claim 5, wherein: the locking joint (8) is in threaded connection with the valve seat (7).