WO2016101738A1

WO2016101738A1 - Modular seal assembly and puncture ware

Info

Publication number: WO2016101738A1
Application number: PCT/CN2015/095028
Authority: WO
Inventors: 周星
Original assignee: 周星
Priority date: 2014-12-23
Filing date: 2015-11-19
Publication date: 2016-06-30
Also published as: CN105769298A

Abstract

A modular seal assembly, comprising an end seal (1) and a one-way valve (2), the end seal (1) and the one-way valve (2) being in a concave-convex mating connection with each other via a connection hole (13-1) on a connection wing (13) and a connection hook (23) on the one-way valve (2). A positioning slot (24) on the one-way valve (2) has a guiding function, facilitating the connection hook (23) to slip into the connection hole (13-1) on the connection wing (13) so as to realize the concave-convex mating connection. Also, a positioning rib (13-2) on the end seal (1) and the positioning slot (24) on the one-way valve (2) form a concave-convex mating positioning, preventing air leakage caused by shaking an instrument. A puncture ware (100) using the modular seal assembly (9) is easy and simple to assemble and disassemble, and has a stable connection and good sealing performance.

Description

Combined seal assembly and puncturing device

Technical field

The present invention relates to a laparoscopic surgical instrument, and more particularly to a combined seal assembly for use in laparoscopic surgery and a trocar that uses such a seal assembly.

Background technique

Laparoscopic surgery has become more and more widely used. In order to avoid iatrogenic infection, the amount of disposable puncturing device (Trocar) used in laparoscopic surgery is also increasing, and the structure is simplified on the basis of ensuring the performance. Easy to use and improve performance, this trend has become the direction of improvement of the puncturing device.

When the trocar of the prior art is swayed to the left and right of the surgical instrument, it is easy to cause air leakage between the end seal and the check valve seal due to the uneven force of the seal, and therefore it is necessary to improve the prior art.

Summary of the invention

A combined seal assembly 9 comprising an end seal 1 and a check valve 2. It is characterized by:

A. The end seal 1 includes a surgical instrument hole 10, an end seal mechanism 11, a housing 12 and a connecting wing 13; the end seal mechanism 11 is mounted in the housing 12, and the connecting wing 13 is disposed in the housing 12. The lower end 12-1; the connecting wing 13 is provided with a connecting hole 13-1 and a positioning rib 13-2;

B. The check valve 2 includes a surgical instrument hole 20, a one-way valve sealing mechanism 21, a housing 22, a connecting hook 23 and a positioning groove 24; the one-way valve sealing mechanism 21 is mounted in the housing 22; The connecting hook 23 and the positioning groove 24 are disposed on the outer side of the housing 22;

C. The connecting hook 23 can be embedded in the connecting hole 13-1 of the connecting wing 13, and the positioning rib 13-2 and the positioning groove 24 form a concave-convex matching positioning;

D. The centerline of the surgical instrument aperture 10 of the end seal 1 coincides or substantially coincides with the centerline of the surgical instrument aperture 20 of the one-way valve 2.

Further, the positioning rib 13-2 is a curve. The positioning groove 24 is a curved groove. Curved positioning rib A concave-convex fit can be formed between the positioning groove 24 of the curved groove 13-2. When the surgical instrument 200 passing through the puncturing device 100 is swayed left and right, since the concave-convex fit formed between the positioning rib 13-2 and the positioning groove 24 has a positioning function, the end seal 1 is restricted The swing gap between the check valves 2, therefore, the relative movement between the end seal 1 and the check valve 2 of the combined seal assembly 9 does not occur, and the air leakage is well prevented, and the valve is well maintained. Sealing performance.

The positioning rib 13-2 is a straight line. The positioning groove 24 is a linear groove. A concave-convex fit can be formed between the linear positioning rib 13-2 and the positioning groove 24 of the linear groove. Compared with the curved design, the design of the linear positioning rib 13-2 and the positioning groove 24 can better ensure that the relative movement between the end seal 1 and the check valve 2 does not occur. , the sealing performance is better. Moreover, in the linear design, the positioning rib 13-2 slides into the positioning groove 24 with less resistance and is more convenient to install.

A trocar, characterized in that the puncturing device 100 comprises the combined sealing assembly 9 of claim 1.

The combined seal assembly 9 of the present invention comprises an end seal 1 and a check valve 2, and the connection between the seal assembly 1 and the check valve 2 through the connecting hole 13-1 and the one-way valve The connecting hook 23 on the valve 2 forms a concave-convex card mating connection. The positioning groove 24 not only has a guiding function, but also facilitates the sliding of the connecting hook 23 into the connecting hole 13-1 of the connecting wing 13 to realize the concave-convex card fitting connection; further, the positioning rib 13 on the end seal 1 The -2 is formed in a concave-convex manner with the positioning groove 24 on the check valve 2, and the air leakage caused by the shaking of the instrument 200 can be prevented. The puncturing device 100 using the combined sealing assembly 9 of the present invention has the advantages of convenient assembly, simple disassembly, firm connection, and good sealing performance.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view showing the structure of a radial seal assembly of the present invention.

2 is a schematic perspective view of the radial seal assembly of the present invention.

Figure 3 is an exploded view of Figure 2.

4 is a schematic perspective view of the end seal of the radial seal assembly of the present invention.

Figure 5 is a perspective view of the end seal of the radial seal assembly of the present invention.

Figure 6 is a perspective view showing the structure of the one-way valve of the radial seal assembly of the present invention.

Figure 7 is a perspective view showing the three-dimensional structure of the one-way valve of the radial seal assembly of the present invention.

Figure 8 is a puncture device of the present invention.

In the above picture:

100 is the puncture device of the present invention, 101 is the puncture rod of the puncture device of the present invention, 102 is the sheath tube of the puncture device of the present invention, and 9 is the combined seal assembly of the present invention.

1 is an end seal and 2 is a check valve.

10 is a surgical instrument hole, 11 is an end sealing mechanism, 12 is a housing, and 13 is a connecting wing.

12-1 is the lower end of the housing, 13-1 is the connecting hole on the connecting wing, and 13-2 is the positioning rib on the connecting wing.

20 is a surgical instrument hole, 21 is a one-way valve sealing mechanism, 22 is a housing, 23 is a connecting hook, and 24 is a positioning groove

detailed description

Example 1: Combined seal assembly of the present invention

Referring to Figures 1 through 7, the combined seal assembly of the present invention includes an end seal 1 and a check valve 2.

The end seal 1 includes a surgical instrument hole 10, an end seal mechanism 11, a housing 12 and a connecting wing 13. The end seal mechanism 11 is mounted in a housing 12 that is disposed on the lower end 12-1 of the housing 12. The connecting wing 13 is provided with a connecting hole 13-1 and a positioning rib 13-2.

The check valve 2 includes a surgical instrument hole 20, a check valve sealing mechanism 21, a housing 22, a connecting hook 23, and a positioning groove 24. The one-way valve sealing mechanism 21 is mounted in the housing 22, and the connecting hook 23 and the positioning groove 24 are provided on the outer side of the housing 22.

The connecting hook 23 can be embedded in the connecting hole 13-1 of the connecting wing 13, and the positioning rib 13-2 and the positioning groove 24 form a concave-convex card for positioning.

The centerline of the surgical instrument aperture 10 of the end seal 1 coincides or substantially coincides with the centerline of the surgical instrument aperture 20 of the one-way valve 2.

In the embodiment, the positioning rib 13-2 is a straight line; the positioning groove 24 is a linear groove. A concave-convex fit can be formed between the linear positioning rib 13-2 and the positioning groove 24 of the linear groove. The design of the linear positioning rib 13-2 and the positioning groove 24 can better ensure that the relative movement between the end seal 1 and the check valve 2 does not occur, and the sealing performance is better. Moreover, in the linear design, the positioning rib 13-2 slides into the positioning groove 24 with less resistance and is more convenient to install.

In addition, the positioning rib 13-2 may also be curved, and the positioning groove 24 may also be a curved groove matched thereto. A concave-convex card fit can be formed between the curved positioning rib 13-2 and the positioning groove 24 of the curved groove. Those skilled in the art can also devise other structures without departing from the scope of the present application.

In this embodiment, the sealing assembly 1 and the check valve 2 are formed by the connection hole 13-1 on the connecting wing 13 and the connecting hook 23 on the check valve 2 to form a concave-convex card. Easy to disassemble.

The positioning rib 13-2 on the end seal 1 and the positioning groove 24 on the check valve 2 are formed in a concave-convex manner, which can prevent air leakage caused by the shaking of the instrument 200 and ensure good sealing of the device.

Example 2: Puncture device of the present invention

The puncturing device 100 of the present invention comprises the combined sealing assembly 9 of claim 1.

Referring to FIG. 8, in the present embodiment, the puncturing device 100 includes the combined sealing assembly 9 described in Embodiment 1. The puncturing device 100 is composed of a puncturing rod 101 and a sheath tube 102, and the puncturing rod 101 is inserted into the sheath tube 102. The sheath tube 102 includes a combined seal 9 that is disposed at the proximal end of the sheath tube 102.

The lower end 12-1 of the housing 12 of the combined seal 9 of the puncturing device 100 is provided with the connecting wing 13, and the connecting wing 13 is provided with a connecting hole 13-1 and a positioning rib 13-2. The connecting hook 23 and the positioning groove 24 are provided on the outer side of the housing 22 of the one-way valve 2 of the combined seal 9. Between the sealing assembly 1 and the check valve 2, a connecting hook 23 on the connecting wing 13 and a connecting hook 23 on the check valve 2 form a concave-convex card fit connection; the positioning rib 13 -2 and the positioning groove 24 can form a concave-convex matching positioning.

The puncturing device 100 of the present invention is used, and the combined sealing member 9 of claim 1 is used, which has the advantages of convenient assembly, simple disassembly, firm connection and good sealing property.

It should be noted that the structures disclosed and illustrated herein may be replaced with other structures having the same effect, and the embodiments described herein are not the only structures that implement the invention. While the preferred embodiments of the present invention have been shown and described herein, it will be understood by those skilled in the art that Instead, the scope of the invention is to be defined by the spirit and scope of the appended claims.

Claims

a combined seal assembly, characterized in that the combined seal assembly (9) comprises an end seal (1) and a check valve (2);

A. The end seal (1) comprises a surgical instrument hole (10), an end sealing mechanism (11), a housing (12) and a connecting wing (13); the end sealing mechanism (11) is mounted on the housing ( 12), the connecting wing (13) is disposed on the lower end (12-1) of the casing (12); the connecting wing (13) is provided with a connecting hole (13-1) and a positioning rib (13- 2);

B. The check valve (2) comprises a surgical instrument hole (20), a check valve sealing mechanism (21), a housing (22), a connecting hook (23) and a positioning groove (24); the check valve a sealing mechanism (21) is mounted in the housing (22); the connecting hook (23) and the positioning groove (24) are disposed on an outer side of the housing (22);

C. The connecting hook (23) can be embedded in the connecting hole (13-1) of the connecting wing (13), and the positioning rib (13-2) and the positioning groove (24) form a concave-convex matching positioning;

D. The centerline of the surgical instrument aperture (10) of the end seal (1) coincides or substantially coincides with the centerline of the surgical instrument aperture (20) of the one-way valve (2).
The instrument lock switch according to claim 1, characterized in that said positioning rib (13-2) is a curve.
The instrument lock switch according to claim 1, wherein said positioning rib (13-2) is a straight line.
The instrument lock switch according to claim 1, wherein the positioning groove (24) is a curved groove.
The instrument lock switch according to claim 1, wherein the positioning groove (24) is a linear groove.
A trocar, characterized in that the puncturing device (100) comprises the combined sealing assembly (9) of claim 1.