WO2021072570A1

WO2021072570A1 - Multi-channel working cannula

Info

Publication number: WO2021072570A1
Application number: PCT/CN2019/000236
Authority: WO
Inventors: 杨文州; 潘会会
Original assignee: 山东冠龙医疗用品有限公司
Priority date: 2019-10-16
Filing date: 2019-12-06
Publication date: 2021-04-22
Also published as: CN211325228U

Abstract

Disclosed is a multi-channel working cannula, comprising a cannula body, wherein a water injection channel (6) is arranged on the cannula body; a water outlet of the water injection channel (6) is located at the front end of the cannula body; and a water injection opening in communication with the water injection channel (6) is provided in the cannula body. The water injection channel (6) is arranged in the cannula body, such that when the working cannula extends into a human body for working, water is injected from the outside to the inside to clean blood or other substances at an endoscope, thus guaranteeing a clear view of the endoscope, and achieving a good observation effect, and at the same time, the aim of inhibiting blood in blood vessels from flowing out can be achieved due to the water pressure of the water outlet.

Description

Multi-channel working casing

Technical field

The present invention relates to the technical field of medical devices, in particular to a multi-channel working sleeve.

Background technique

Because minimally invasive surgery has the advantages of less trauma, light pain, and quick recovery, the concept of "minimally invasive" has penetrated into various fields of surgery. Minimally invasive surgery refers to the use of laparoscopy, thoracoscopy and other modern medical equipment through multi-channel working cannula and related equipment for surgery.

When the existing multi-channel working sleeve is inserted into the human body to work, blood flows out due to the rupture of blood vessels in the human body. When the multi-channel working sleeve is inserted into the multi-channel working sleeve for observation, the field of view will be blurred, which affects the observation.

Therefore, in view of the current situation that the existing multi-channel working cannula is not clear due to the influence of blood when it is inserted into the human body to work, the development of a multi-channel working cannula that can maintain a clear view of the endoscope during surgery is Urgent problems.

Summary of the invention

In order to overcome the above-mentioned shortcomings in the prior art, the present invention provides a multi-channel working cannula that maintains a clear view of the endoscope through water injection cleaning, so as to solve the problem that the existing multi-channel working cannula can be inserted into the human body to work. The problem of unclear endoscopic observation due to the influence of blood.

The technical solution adopted by the present invention to solve the above technical problems is: a multi-channel working casing, comprising a casing body, a water injection channel is arranged on the casing body, and the water outlet of the water injection channel is located in the casing At the front end of the body, the casing body is provided with a water injection port communicating with the water injection channel. The water injection channel is provided in the casing body to realize that when the working casing is inserted into the human body to work, water is injected from the outside to the inside to clean the blood or other sundries at the endoscope, ensuring that the vision of the endoscope is clear and achieving a better Good observation effect, at the same time, because of the water pressure of the water outlet, the purpose of inhibiting the outflow of blood in the blood vessel can be achieved.

Further, the water outlet is located at one end of the water injection channel, and the other end of the water injection channel is provided with a plugging structure, and the water injection port is located on the side of the casing body and at one end close to the plugging structure. It achieves the effect of facilitating water injection without affecting the operation of the multi-channel casing.

Further, the casing body includes a main channel tube, an auxiliary channel tube, and a spacer block located between the main channel tube and the auxiliary channel tube that are integrally arranged, the water injection channel is opened in the spacer block, and the blocking structure is A handle provided at the rear end of the cushion block, and the water injection port is located on the side of the cushion block.

Further, two water injection ports are provided, which are respectively provided on both sides of the cushion block and are opposite to each other. The relative arrangement of the two water injection ports can balance and increase the injection water pressure during water injection.

Further, a water nozzle joint is connected to the water injection port. Achieve the effect of facilitating the connection of the water injection device.

Further, the water injection port is located at the rear of the cushion block, and the distance between the water injection port and the front end of the casing body is greater than the depth of the casing body entering the human body.

Further, an observation window is provided at the front end of the casing body, and the water outlet of the water injection channel is connected to the observation window.

Further, the handle is provided with a main channel tube nozzle communicating with the main channel tube and a secondary channel tube nozzle communicating with the auxiliary channel tube.

It can be seen from the above technical solutions that the present invention has the following advantages:

The water injection channel is provided in the casing body to realize that when the working casing is inserted into the human body to work, water is injected from the outside to the inside to clean the blood or other sundries at the endoscope, ensuring that the vision of the endoscope is clear and achieving a better Good observation effect, at the same time, because of the water pressure of the water outlet, the purpose of inhibiting the outflow of blood in the blood vessel can be achieved. In addition, by arranging two opposite water injection ports on both sides of the cushion block, water can be injected on both sides at the same time during use, which can balance the water pressure during water injection.

Description of the drawings

Fig. 1 is a schematic diagram of the structure in a specific embodiment of the present invention.

Fig. 2 is a side view of Fig. 1.

In the figure, 1, handle, 2, main channel tube, 21, main channel tube orifice, 3, spacer, 4, auxiliary channel tube, 41, auxiliary channel tube orifice, 5. water nozzle joint, 6, water injection channel .

Detailed ways

In order to make the objectives, features, and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings in this specific embodiment. Obviously, the implementation described below The examples are only a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments in this patent, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the scope of protection of this patent.

As shown in Figures 1 and 2, a multi-channel working casing includes a casing body. A water injection channel 6 is provided in the casing body. The water outlet of the water injection channel 6 is located at the front end of the casing body. There is a water injection port communicating with the water injection channel 6. The water injection channel 6 is provided in the casing body to realize that when the working casing is inserted into the human body to work, water is injected from the outside to the inside to clean the blood or other sundries at the endoscope, so as to ensure that the vision of the endoscope is clear. Better observation effect, and at the same time, because of the water pressure of the water outlet, the purpose of inhibiting the outflow of blood in the blood vessel can be achieved.

The casing body includes the main channel tube 2, the auxiliary channel tube 4, the cushion block 3 and the handle 1. The main channel tube 2, the cushion block 3 and the auxiliary channel tube 4 are integrated, the auxiliary channel tube 4 is on top, and the main channel tube 2 Below, the spacer 3 is located in the middle of the main channel tube 2 and the auxiliary channel tube 4 for isolation so that the two channels can work independently. The main channel tube 2 is longer than the auxiliary channel tube 4, and the front ends of the main channel tube 2 and the auxiliary channel tube 4 are both Inclined incline upward, the oblique incision of the auxiliary channel tube 4 is located at the rear and upper position of the oblique incision of the main channel tube 2. A scale line for judging the length of the insertion into the human body is provided. A handle 1 is fixedly connected to the back end of the cushion block 3 and the main and auxiliary channel tubes 4. The handle 1 is provided with a main channel tube nozzle 21 communicating with the main channel tube 2 respectively. The port 41 of the auxiliary channel tube communicating with the auxiliary channel tube 4 makes the endoscope and the operating instrument extend into the channel without interfering with each other.

A water injection channel 6 is opened on the cushion block 3. One end of the water injection channel 6 is a water outlet, and the water outlet communicates with an observation window set at the front end of the casing body. When the water reaches the observation window, the human tissue at the endoscope is cleaned, and the water injection channel The other end of 6 is a plugging structure, and the plugging structure in this specific embodiment is the handle 1.

In addition, there are two water injection ports, which are respectively disposed on both sides of the cushion block 3 and opposite to each other, which can increase the pressure of the water flowing into the water injection channel 6 in a balanced manner during water injection; a water nozzle connector 5 is connected to the water injection port, It has the function of facilitating the connection of the water injection device.

The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown in this document, but should conform to the widest scope consistent with the principles and novel features disclosed in this document.

Claims

A multi-channel working casing, which is characterized by comprising a casing body, a water injection channel (6) is arranged on the casing body, and the water outlet of the water injection channel (6) is located at the front end of the casing body, The casing body is provided with a water injection port communicating with the water injection channel (6).
The multi-channel working casing according to claim 1, wherein the water outlet is located at one end of the water injection channel (6), the other end of the water injection channel is provided with a blocking structure, and the water injection port is located at The side of the sleeve body is located at one end close to the blocking structure.
The multi-channel working casing according to claim 2, characterized in that, the casing body includes a main channel tube (2), a secondary channel tube (4) and the main channel tube (2) and the secondary channel that are integrally arranged. The cushion block (3) between the pipes (4), the water injection channel (6) is opened in the cushion block (3), and the blocking structure is a handle (1) arranged at the rear end of the cushion block (3) ), the water injection port is located on the side of the cushion block (3).
The multi-channel working sleeve according to claim 3, characterized in that there are two water injection ports, which are respectively arranged on two sides of the cushion block (3) and opposite to each other.
The multi-channel working sleeve according to claim 4, characterized in that a water nozzle joint (5) is connected to the water injection port.
The multi-channel working casing according to claim 4, wherein the water injection port is located at the rear of the cushion block (3), and the distance between the water injection port and the front end of the casing body is greater than the depth of the casing body entering the human body .
The multi-channel working casing according to claim 1, wherein the front end of the casing body is provided with an observation window, and the water outlet of the water injection channel (6) is connected to the observation window.
The multi-channel working sleeve according to claim 3, wherein the handle (1) is provided with a main channel tube port (21) communicating with the main channel tube (2) and a secondary channel tube (4). ) The nozzle (41) of the connected auxiliary channel pipe.