CN102008342A

CN102008342A - Novel sealing assembly

Info

Publication number: CN102008342A
Application number: CN 201010299262
Authority: CN
Inventors: 陈望东; 单腾
Original assignee: Touchstone International Medical Science Co Ltd
Current assignee: Touchstone International Medical Science Co Ltd
Priority date: 2010-09-30
Filing date: 2010-09-30
Publication date: 2011-04-13

Abstract

The invention provides a novel sealing assembly comprising a sealing element and an annular flange, wherein the sealing member can be selectively opened or closed and comprises a first sealing member and a second sealing member which are symmetrically arranged; the first sealing member comprises a first part, a second part and a third part which are connected; the third part is connected with the seconds part; and a third angle is formed by a plane on which the third part is positioned relative to the transverse plan of the annular flange and is greater than 90 degrees. The invention has the main benefits that a sewage accommodation bag can be smoothly taken out after the operation is finished, the duck bill sealing assembly is prevented from being turned over and the sealing effect of the duck bill sealing assembly cannot be influenced simultaneously; and the novel sealing assembly can be generally applied to a puncture outfit.

Description

The novel seal assembly

Technical field

The present invention relates to a kind of perforator, relate in particular to a kind of novel " duckbill " black box that is used for perforator.

Background technology

Perforator is a kind ofly to pierce through stomach wall and for other operating theater instruments provide the operating theater instruments that enters the body cavity passage, belong to a kind of Minimally Invasive Surgery apparatus.

Perforator generally includes as the sleeve assembly of other operating theater instruments admission passages and the puncturing lever in the described sleeve assembly.For transdermal, earlier cut epiderm skin, then puncturing lever transdermal and enter body cavity with scalpel.Exert pressure by the near-end to described puncturing lever, skin is passed at the tip that promotes described puncturing lever, enters body cavity up to it.Perforator enters body cavity, extracts puncturing lever out, and sleeve assembly just can be used as the mis instruments passage of carrying out endo-surgical and splanchnoscopy operation.

At present, perforator uses a kind of " duckbill " black box usually.A kind of " duckbill " black box is disclosed as Chinese patent CN200410092185, comprise a pair of relative valve member, it is closure when being subjected to intra-abdominal pressure, specifically comprise: seal, be suitable for moving optionally to open and to close fully described black box, described black box is included in the longitudinal axis that wherein extends, and the described longitudinal axis has vertical with it transverse plane; Described seal comprises a near-end and a far-end, and described near-end forms first angle with respect to described transverse plane, and described far-end forms second angle with respect to described transverse plane, described first angle less than second angle and described second angle less than 90 degree.

After the sleeve assembly of perforator entered body cavity, because the effect of abdominal pressure, it was sealing state that " duckbill " black box keeps closing; When medical apparatus and instruments is undertaken operating in the body cavity by sleeve assembly, " duckbill " thus black box is subjected to the thrust portion branch of medical apparatus and instruments to be opened and allows medical apparatus and instruments to pass through.And in the prior art " duckbill " black box still take out receive dirty bag must per os, when receiving dirty bag during by " duckbill " black box, the upset distortion of " duckbill " black box, this has increased to a certain extent receives the difficulty that dirty bag passes through from this " duckbill " seal group; The more important thing is that the doctor uses bigger pulling force, increased and received the impaired probability of dirty bag, increased the risk of polluting the abdominal cavity.

Summary of the invention

In view of the defective that above-mentioned prior art exists, the objective of the invention is to propose a kind of making and receive dirty bag smooth novel seal assembly that takes out in the body operation is finished after.

Purpose of the present invention will be achieved by the following technical programs:

A kind of novel seal assembly comprises:

Seal and the annular flange that is arranged on its interconnect function on every side, described seal is optionally opened and is closed fully, and described annular flange upper surface is positioned at a transverse plane; Described seal comprises symmetrically arranged first seal and second seal; Described first seal comprises continuous first and second portion, the plane at described first place forms first angle with respect to described transverse plane, the plane at described second portion place forms second angle with respect to described transverse plane, and described first angle is spent less than 90 less than second angle and described second angle; Described first seal also comprises a third part, and described third part links to each other with described second portion, and the plane at described third part place forms the third angle degree with respect to described transverse plane, and described third angle degree is greater than 90 degree.

Further, described third part is provided with airflow hole.

Further, described airflow hole is arranged on the root of third part.

Further, described third angle degree is less than 180 degree.

Beneficial effect of the present invention is mainly reflected in: can make and receive dirty bag and take out in body smoothly after operation is finished, and need not to take place the upset of black box, not influence the sealing effectiveness of black box simultaneously, can be applied in the perforator at large.

Description of drawings

Fig. 1 is first axonometric chart of black box of the present invention.

Fig. 2 is second axonometric chart of black box of the present invention.

Fig. 3 is the cutaway view of black box of the present invention.

Wherein:

1 seal, 11 first seals, 111 firsts

112 second portions, 113 third parts, 1131 airflow holes

12 second seals, 2 composition surfaces, 3 transverse planes

4 annular flanges

The specific embodiment

As Figure 1-3, the invention provides a kind of novel seal assembly, it comprises: the seal 1 that can optionally open or close fully, and be arranged on its annular flange 4 on every side, be used for this novel seal assembly is connected in the upper casing of perforator; Described annular flange 4 links to each other with seal 1 and the upper surface of annular flange is positioned at a transverse plane 3.

Further, described seal 1 comprises: first seal 11 of symmetrical setting and second seal 12, both planes of symmetry are composition surface 2.First seal 11 is identical with second seal, 12 structures, below only describes first seal 11.

First seal 11 forms first 111, second portion 112 and the third part 113 that angle orientation is arranged each other, and first 111 links to each other with second portion 112, and second portion 112 links to each other with third part 113.Described first 111 is arranged at the near-end of described first seal 11, and described second portion 112 is arranged at the middle-end of described first seal and adjacent with composition surface 2, and described third part 113 is arranged at the far-end of described first seal 11.

Consistent with prior art, the plane at described first 111 places forms first angle with respect to described transverse plane 3, the plane at described second portion 112 places forms second angle with respect to described transverse plane 3, and described first angle is spent less than 90 less than second angle and described second angle.

In this preferred embodiment, the plane at described third part 113 places forms the third angle degree with respect to described transverse plane 3, and described third angle degree is greater than 90 degree, less than 180 degree.When receive dirty bag when taking out from perforator, apparatus can move along the inwall of third part 113, opens to allow to receive dirty bag at the effect lower seal body deformability of pulling force and passes through from position, faying face 2 place.Whole process is more prone to, convenience, and need not to take place the upset of duckbill black box.

And when apparatus is taken out the duckbill black box, in body cavity under the gas pressure effect, first seal 11 and second seal 12 produce skew, the middle-end of the win seal 11 and second seal 12 is contacted form composition surface 2, thereby play the effect of sealing.

The root of described third part 113 is provided with airflow hole 1131, endoceliac air-flow can act on first 111 and second portion 112 by airflow hole, make that effective projected area of the pressure that effective projected area of the pressure that first 111 and second portion 112 are subjected to is subjected to when third part 113 is not set is identical, thereby make being provided with of third part 113 not exert an influence closing of duckbill black box.

The present invention still has numerous embodiments, and all employing equivalents or equivalent transformation and all technical schemes of forming all drop within protection scope of the present invention.

Claims

1. novel seal assembly comprises:

Seal and the annular flange that is arranged on its interconnect function on every side, described seal is optionally opened and is closed fully, and described annular flange upper surface is positioned at a transverse plane;

Described seal comprises symmetrically arranged first seal and second seal;

Described first seal comprises continuous first and second portion, the plane at described first place forms first angle with respect to described transverse plane, the plane at described second portion place forms second angle with respect to described transverse plane, and described first angle is spent less than 90 less than second angle and described second angle; It is characterized in that:

Described first seal also comprises a third part, and described third part links to each other with described second portion, and the plane at described third part place forms the third angle degree with respect to described transverse plane, and described third angle degree is greater than 90 degree.

2. novel seal assembly according to claim 1 is characterized in that: described third part is provided with airflow hole.

3. novel seal assembly according to claim 2 is characterized in that: described airflow hole is arranged on the root of third part.

4. according to any one novel seal assembly described in the claim 1 to 3, it is characterized in that: described third angle degree is less than 180 degree.