Anti-reflux endoscope aspirator

Abstract

The utility model relates to an anti-backflow endoscope aspirator which comprises an endoscope water inlet and outlet sleeve system. An endoscope water inlet and outlet control system; the endoscope water inlet and outlet sleeve system is connected with the endoscope water inlet and outlet control system through tail end threads; the flushing clear liquid conveying pipe is connected with a water inlet connector of the endoscope water inlet and outlet control system. The endoscope aspirator is designed for solving the problem that waste liquid flows back after an existing endoscope aspirator sucks waste liquid in cavities such as an abdominal cavity and a thoracic cavity, a water inlet cavity gap and a water outlet cavity gap are independently separated, the water outlet pipe is made of disposable materials, an anti-backflow valve is added, and therefore secondary pollution of clear flushing liquid by the waste liquid can be reduced. The problem that the water outlet cavity of the aspirator is not thoroughly disinfected can be reduced, the flushing operation in an operation can be reduced, and the operation time is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of surgical medicine, in particular to a laparoscope aspirator for preventing backflow. Background Art

[0002] A laparoscopic aspirator is a medical device that is mainly used to absorb fluid and gas in the abdominal cavity during surgery to maintain the cleanliness of the surgical area and a clear field of vision, thereby reducing postoperative infection in patients.

[0003] At present, the laparoscope suction device mainly includes a metal single-lumen suction tube body, a water inlet connection, a negative pressure suction connection port, and a single valve for water inlet and negative pressure flow control. During repeated flushing, the metal single-lumen suction tube has the problem of flushing clear liquid being contaminated by flushing waste liquid, the control valve cannot perform flushing and waste liquid suction operations at the same time, and the internal cleaning of the metal suction tube is inconvenient and incomplete. Utility Model Content

[0004] The purpose of the utility model is to overcome the problems encountered in the above-mentioned laparoscopic surgery during the flushing of the chamber, and to provide a laparoscopic aspirator system with dual chambers that independently control the water inlet and outlet. During use, the flushing waste liquid will not flow back into the chamber, the flushing and water outlet can be carried out at the same time and the flow rate can be adjusted, and the aspirator is easy to clean after use. To achieve the above-mentioned purpose, the utility model provides the following technical solutions.

[0005] A laparoscope suction device for preventing backflow includes a laparoscope water inlet and outlet casing system and a laparoscope water inlet and outlet control system. The laparoscope water inlet and outlet casing system includes a metal outer casing and a disposable polymer inner casing; the metal outer casing includes a metal outer casing body, a water outlet hole at the head end of the outer casing, a folded ring at the head end of the outer casing, an outer casing connecting ring, and a threaded connector at the tail end of the outer casing; the disposable polymer inner casing includes a disposable polymer inner casing body and an anti-backflow valve. The laparoscope water inlet and outlet control system includes a laparoscope water inlet and outlet control system body and a water inlet flow control valve body; the laparoscope water inlet and outlet control system body includes a laparoscope water inlet and outlet casing system connection port, a water inlet flow control valve connection port, a negative pressure flow control valve body, and a water outlet connection head; the negative pressure flow control valve body includes a negative pressure flow control button, a new core of the negative pressure flow control valve, a valve body spring, and a bottom cover of the negative pressure flow control valve.

[0006] Preferably, the head and tail ends of the disposable polymer inner sleeve are both soft rubber rings, which are inserted into the metal outer sleeve and sealed with the folded ring at the head end of the outer sleeve.

[0007] Preferably, the threaded connector at the rear end of the outer sleeve is connected to the connection port of the laparoscope water inlet and outlet sleeve system.

[0008] Preferably, the water inlet flow control valve body is connected to the water inlet flow control valve connection port, and the water inlet connector is connected to the flushing clear liquid infusion tube.

[0009] Preferably, the water outlet connector is connected to a central negative pressure pipe.

[0010] In the above technical solution, the utility model provides a laparoscope aspirator with anti-backflow, which has the following beneficial effects:

[0011] 1. In the utility model, when the negative pressure flow control valve of the negative pressure aspirator is closed, the sucked flushing waste liquid will not flow back into the chamber due to the presence of the anti-backflow valve, thereby reducing pollution.

[0012] 2. The utility model has a water inlet flow control valve and a negative pressure flow control valve, which can be opened at the same time to accurately control the inlet and outlet water flows for cyclic flushing.

[0013] 3. The utility model has a disposable polymer inner sleeve, which can solve the problem of incomplete disinfection of the aspirator. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Partial structural diagram of the laparoscope water inlet and outlet cannula system of the laparoscope aspirator for preventing backflow;

[0015] Figure 2 Front view of the laparoscopic suction device to prevent backflow;

[0016] Figure 3 Left view of the laparoscopic suction device to prevent backflow;

[0017] Figure 4 Sagittal view of the metal outer cannula head of the laparoscopic suction device to prevent backflow;

[0018] Figure 5 A partial structural diagram of a negative pressure flow control valve of a laparoscope suction device for preventing backflow;

[0019] Figure 6 Structural diagram of the water inlet and outlet channels of the laparoscopic aspirator to prevent backflow.

[0020] Reference numerals:

[0021] 1. Water outlet connector; 2. Water inlet connector; 3. Water inlet flow control valve body; 4. Negative pressure flow control button; 5. Threaded connector at the tail end of the outer sleeve; 6. Water outlet hole at the head end of the outer sleeve; 7. Bottom cover of the negative pressure flow control valve; 8. Metal outer sleeve; 9. Disposable polymer inner sleeve; 10. Anti-backflow valve; 11. New core of the negative pressure flow control valve; 12. Valve body spring; 13. Reflection ring at the head end of the outer sleeve; 14. Connection port of the laparoscope inlet and outlet sleeve system 15. Water inlet channel 16. Water outlet channel 17. Connection port of the water inlet flow control valve. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-6 The present invention provides a technical solution: a laparoscope suction device with anti-backflow, comprising a laparoscope water inlet and outlet sleeve system A and a laparoscope water inlet and outlet control system B. The laparoscope water inlet and outlet sleeve system A and the laparoscope water inlet and outlet control system are tightly connected to B, the central negative pressure tube is connected to the water outlet connector 1, and the flushing clear liquid infusion tube is connected to the water inlet connector 2. When in use, the laparoscope water inlet and outlet sleeve system A is used to flush and suction the part of the patient to be treated, and the laparoscope water inlet and outlet control system B is used to control the inlet and outlet water flow.

[0024] The disposable polymer inner sleeve 9 has a soft connecting ring at the head end, which is inserted into the metal outer sleeve 8 and tightly connected to the outer sleeve head end fold ring 13 at the head of the metal outer sleeve 8. In addition, the metal outer sleeve 8 and the disposable polymer inner sleeve 9 are both rigid components, and the centers of the cross sections coincide.

[0025] The threaded connector 5 at the tail end of the metal outer sleeve 8 is tightly connected to the outer ring of the laparoscope water inlet and outlet sleeve system connection port 14 through a sealing ring. The tail end of the disposable polymer inner sleeve 9 inside the metal outer sleeve 8 also has a soft connecting ring, which is tightly connected to the inner ring of the laparoscope water inlet and outlet sleeve system connection port 14. The water inlet connector 2 is connected to the water inlet flow control valve body 3 and then connected to the water inlet flow control valve connection port 17.

[0026] During flushing, the flushing liquid enters the water inlet channel 15 through the water inlet connector 2, then flows through the outer sleeve tail end threaded connector 5 at the tail end of the metal outer sleeve 8 to enter the gap between the metal outer sleeve 8 and the disposable polymer inner sleeve 9, and finally the flushing liquid enters the surgical chamber through the water outlet hole 6 at the head end of the outer sleeve.

[0027] Install the negative pressure flow control valve bottom cover 7 under the negative pressure control cavity of the laparoscope water inlet and outlet control system body B, install the valve body spring 12 and the negative pressure flow control valve new core 11 in sequence, and then install the negative pressure flow control button 4. It should be noted that the channel in the negative pressure flow control valve new core 11 is parallel to the water outlet channel 16 in the laparoscope water inlet and outlet control system body B. The gap between the negative pressure flow control valve new core 11 and the laparoscope water inlet and outlet control system body B is sealed by a rubber gasket to ensure that the device will not leak when using negative pressure suction.

[0028] When absorbing water, the central negative pressure provides power, and the flushing waste liquid is sucked into the disposable polymer inner sleeve 9, and then enters the negative pressure flow control valve body through the inner ring port of the laparoscope water inlet and outlet sleeve system connection port 14. Press the negative pressure flow control button 4 to connect the channel in the new core 11 of the negative pressure flow control valve and the water outlet channel 16 in the main body B of the laparoscope water inlet and outlet control system. At this time, the flushing waste liquid will be discharged through the water outlet 1.

[0029] When the negative pressure flow control valve is closed, the flushing waste liquid in the water outlet channel 16 and the disposable polymer inner sleeve 9 flows back under the action of gravity and meets the soft anti-backflow valve 10 on the inner wall of the head end of the disposable polymer inner sleeve 9, so that the anti-backflow valve 10 is closed, preventing the flushing waste liquid from flowing back into the operating room and causing pollution.

[0030] The elastic coefficient of the compression spring 12 mentioned in the article meets the technical requirements of the technical solution of the utility model, and all connections are closed connections.

[0031] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A laparoscope aspirator for preventing backflow, characterized in that: It includes a laparoscope water inlet and outlet casing system; a laparoscope water inlet and outlet control system; the laparoscope water inlet and outlet casing system is connected to the laparoscope water inlet and outlet control system through a tail end thread; a flushing clear liquid infusion tube and a laparoscope water inlet and outlet control system water inlet connector, the laparoscope water inlet and outlet casing system includes a metal outer casing, a disposable polymer inner casing, the laparoscope water inlet and outlet control system includes a laparoscope water inlet and outlet control system body, a water inlet flow control valve body, the metal outer casing includes a metal outer casing body, a water outlet hole at the head end of the outer casing, a folded ring at the head end of the outer casing, an outer casing connecting ring, and an outer casing tail end threaded connector, the disposable polymer inner casing includes a disposable polymer inner casing body, and an anti-backflow valve.

2. The anti-backflow laparoscopic aspirator according to claim 1, characterized in that: The main body of the laparoscope water inlet and outlet control system includes a laparoscope water inlet and outlet casing system connection port, a water inlet flow control valve connection port, a negative pressure flow control valve body, and a water outlet connector.

3. The anti-backflow laparoscopic aspirator according to claim 1, characterized in that: The water inlet flow control valve comprises a water inlet flow control valve body and a water inlet connector.

4. The anti-backflow laparoscopic aspirator according to claim 2, characterized in that: The negative pressure flow control valve body comprises a negative pressure flow control button, a new core of the negative pressure flow control valve, a valve body spring, and a bottom cover of the negative pressure flow control valve.

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