CN216985071U

CN216985071U - Laparoscope fixing channel

Info

Publication number: CN216985071U
Application number: CN202023347264.4U
Authority: CN
Inventors: 张楠; 纪娜
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2022-07-19
Anticipated expiration: 2030-12-31

Abstract

The utility model relates to the technical field of medical instruments, in particular to a laparoscope fixing channel which comprises a fixing piece and an expander; the expander is positioned in the fixed piece and can rotate relative to the fixed piece; a channel is arranged at the center in the fixed channel, and at least two arc-shaped plates are arranged on the outer wall of the channel; one end of the arc-shaped plate, which is positioned on the circumferential side, is connected with the outer wall of the channel; the arc-shaped plate has certain flexibility, and an accommodating cavity is formed between the arc-shaped plate and the outer wall of the channel; one end of the dilator is positioned in the accommodating cavity. The expander is rotated by inserting the fixing piece into the incision of a human body, and the pushing piece on the expander pushes the flexible arc-shaped plate to expand outwards when rotating, so that the incision is expanded, and the fixing channel and the incision are relatively fixed.

Description

Laparoscope fixing channel

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a laparoscope fixing channel.

Background

Laparoscopic surgery is a newly developed minimally invasive method and is a necessary trend for the development of future surgical methods. With the rapid advance of industrial manufacturing technology, the fusion of related subjects lays a firm foundation for developing new technology and new method, and in addition, doctors are more and more skillful to operate, so that many past open operations are replaced by intracavity operations, and the operation selection opportunities are greatly increased. The traditional method of the posterior laparoscopic surgery is to make three 1 cm small incisions on the waist of a patient, insert a tubular working channel called trocar respectively, perform all the later operations through the three channels, and complete the same steps as the open surgery by using a special lengthened surgical instrument under the television monitoring to achieve the same surgical effect.

However, the size of the incision is difficult to control during the operation, the passage is unstable and can shake back and forth when the size is too large, and the passage is difficult to place in the incision when the size is too small.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

The utility model aims to solve the problem that in the prior art, the incision size of an insertion channel is difficult to control, so that the channel is unstable when being inserted into the incision, the drainage tube is easy to be pulled out, and other potential safety hazards are caused, and the laparoscope fixing channel is provided.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A laparoscope fixing channel comprises a fixing piece and a dilator; the expander is positioned in the fixed piece and can rotate relative to the fixed piece; a channel is arranged at the center in the fixing piece, and at least two arc-shaped plates are arranged on the outer wall of the channel; one end of the arc-shaped plate, which is positioned on the circumferential side, is connected with the outer wall of the channel; the arc-shaped plate has certain flexibility, and an accommodating cavity is formed between the arc-shaped plate and the outer wall of the channel; one end of the dilator is positioned in the accommodating cavity.

Preferably, the expander comprises a rotating disc and at least two pushers; each pusher is located within the receiving chamber.

Preferably, the upper end face of the fixed part is provided with a fixed groove; the rotating disc is positioned in the fixed groove and can rotate relative to the fixed groove.

Preferably, the inner wall of the fixed groove, which is in contact with the peripheral side of the rotating disc, is provided with a friction pad, and the friction force between the rotating disc and the friction pad is greater than the resilience force of the arc-shaped plate.

Preferably, the fixing piece and the end part of the arc-shaped plate are provided with slopes, and the end face of the arc-shaped plate is located in the accommodating cavity.

3. Advantageous effects

Compared with the prior art, the utility model has the beneficial effects that:

a fixing piece is plugged into an incision of a human body, an expander is rotated, a pushing piece on the expander pushes a flexible arc-shaped plate to expand outwards when rotating, so that the incision is expanded, and the fixing channel and the incision are fixed relatively.

And secondly, a friction pad is arranged at the contact position of the rotating disk and the side wall of the fixed groove, the pushing piece is driven to rotate after the expander rotates, the flexible arc-shaped plate is expanded and unfolded, the pushing piece cannot rotate after the rotating force is cancelled under the action of the friction force, the expanded state can be maintained, and the fixed channel can be stably fixed.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a partial cross-sectional view of the fastener of the present invention;

FIG. 3 is a schematic view of the construction of the dilator of the present invention;

in the figure, 1, a fixing piece; 11. the device comprises a channel 12, an arc-shaped plate 13, an accommodating cavity 14 and a fixing groove;

2. a dilator; 21. rotating disc, 22, pusher.

Detailed Description

As shown in fig. 1 to 3, a laparoscopic fixation channel includes a fixation member 1 and a dilator 2. Wherein the expander 2 is positioned in the fixing member 1 and can rotate relative to the fixing member 1. The central position is equipped with the passageway 11 in mounting 1, passageway 11 is the flexible passageway of peritoneoscope, be equipped with two at least arcs 12 on the outer wall that is located passageway 11, and arcs 12 have certain flexibility, there are five arcs 12 in this scheme, wherein, the one end that the arc 12 is located the circumference side is connected with passageway 11 outer wall, other limits are free state, make expander 2 promote arc 12 outwards to expand when rotating, increase the external diameter of fixed channel with this, make the incision of placing of fixed channel also can adapt to the incision through self regulation under the big circumstances of cutting, play the effect of relative fixation.

In particular, a housing chamber 13 is formed between the arc-shaped plate 12 and the outer wall of the channel 11, and one end of the spreader 2 is located in the housing chamber 13. The expander 2 comprises a rotating disc 21 and at least two pushers 22. Each pusher 22 is located within the housing chamber 13. The pushing member 22 is inclined to expand the flexible arcuate plate 12 outwardly about the connecting edge as the expander 2 rotates.

Specifically, a fixing groove 14 is provided on the upper end surface of the stationary member 1, and a rotating plate 21 is located in the fixing groove 14, the rotating plate 21 being rotatable with respect to the fixing groove 14. A friction pad is arranged at the contact position of the fixed groove 14 and the circumferential side wall of the rotating disk 21, and the friction force between the rotating disk 21 and the friction pad is larger than the resilience force of the arc-shaped plate 12. So that when the external force is removed, the arc-shaped plate 12 does not push the pushing member 22 to rotate reversely. The fixing channel is relatively stably fixed on the incision, so that the operation of the laparoscope is convenient. In order to make the fixing channel more smoothly inserted into the wound, the fixing piece 1 and the end part of the arc-shaped plate 12 are provided with slopes, and the end surface of the arc-shaped plate 12 is positioned in the accommodating cavity 13.

Claims

1. A laparoscope fixing channel is characterized by comprising a fixing piece (1) and an expander (2);

the expander (2) is positioned in the fixing piece (1) and can rotate relative to the fixing piece (1);

a channel (11) is arranged at the center in the fixing piece (1), and at least two arc-shaped plates (12) are arranged on the outer wall of the channel (11);

one end of the arc-shaped plate (12) positioned on the circumferential side is connected with the outer wall of the channel (11);

the arc-shaped plate (12) is flexible, and an accommodating cavity (13) is formed between the arc-shaped plate (12) and the outer wall of the channel (11);

one end of the expander (2) is positioned in the accommodating cavity (13).

2. A laparoscopic port according to claim 1, wherein said dilator (2) comprises a rotating disk (21) and at least two pushers (22);

each pushing member (22) is located in the accommodating chamber (13).

3. A laparoscope fixing channel as defined in claim 2, characterized in that the fixing member (1) is provided with a fixing groove (14) on the upper end surface;

the rotating disk (21) is positioned in the fixed groove (14), and the rotating disk (21) can rotate relative to the fixed groove (14).

4. A laparoscopic port according to claim 3, wherein said fixation slot (14) is provided with a friction pad on the inner wall in contact with the peripheral side of the rotary plate (21), the friction between the rotary plate (21) and the friction pad being greater than the resilience of the arcuate plate (12).

5. A laparoscopic port according to claim 1, wherein said fixed member (1) and said curved plate (12) are provided with slopes at their ends, and the end face of the curved plate (12) is located in the receiving cavity (13).