Hard endoscope water and air supply device based on sleeve structure

Abstract

The utility model discloses a hard endoscope water and air supply device based on a sleeve structure, which comprises a sleeve, a connector and a delivery pipe, the sleeve is nested and matched with a laparoscope body, and the connector is connected with an eyepiece end of the laparoscope; after the sleeve is connected with the laparoscope body of the laparoscope, the laparoscope lens is flush with the front end face of the sleeve; a water supply connecting pipe and an air supply connecting pipe which are communicated with the interior of the cavity are arranged on the side surface of the connector; the conveying pipe is arranged along the outer side face of the sleeve, one end of the conveying pipe is connected with the cavity of the connector, and the other end of the conveying pipe extends to the front end of the sleeve and bends downwards. The water and air supply device can be matched with the laparoscope, the structure of the laparoscope does not need to be changed, the water and air supply device can be matched with an existing laparoscope, the water and air supply device and the laparoscope enter a human body together through an abdominal cavity puncture outfit during use, a lens can be cleaned through water and air spraying and can be effectively cleaned in an operation, and the lens of the laparoscope is prevented from being polluted; the observation definition of a doctor on a surgical site is improved; the surgical precision is improved; and the surgical efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of intraoperative laparoscope cleaning accessories, in particular to a hard endoscope water and air supply device based on a sleeve structure. Background Art

[0002] Laparoscope is a minimally invasive surgical instrument. Laparoscopic surgery uses a laparoscope to make a hole in the patient's abdomen. An optical lens assembly is built into the lens end of the laparoscope to transmit lighting light and images of the abdominal cavity, and the other end is connected to a camera. When the laparoscope enters the patient's body, the optical assembly inside the laparoscope provides a light source channel for the surgical field of view. The built-in optical lens assembly of the laparoscope can transmit the image in the abdominal cavity to the camera device, so that the surgeon can clearly see the image in the patient's abdominal cavity on the screen of the camera device. Currently, laparoscopes are widely used in laparoscopic minimally invasive surgery, so minimally invasive surgeries in gynecology, gastrointestinal surgery, hepatobiliary surgery, and urology require the assistance of laparoscopes.

[0003] During laparoscopic surgery, contamination of the laparoscope lens, such as fogging, blood splattering, etc., will affect the surgical field of view. Contamination may cause the lens to blur, affecting the doctor's clear observation of the surgical site and reducing the accuracy and effect of the surgery. During surgery, it is often necessary to remove the laparoscope lens from the abdominal cavity for cleaning or replacement, which will inevitably lead to loss of surgical field of view, thereby prolonging the operation time. Therefore, contamination in laparoscopic surgery is a problem that needs to be solved. At present, there are many solutions provided to solve laparoscope contamination, but they are difficult to apply in practice. Moreover, many of them have changed the original structure of the laparoscope, and the structure is complex, which makes it difficult to promote and the cost is high. Such as the utility model patent application with publication number CN109222879A and the utility model patent application with publication number CN112826426A. Utility Model Content

[0004] The purpose of the utility model is to provide a hard endoscope water and air supply device based on a sleeve structure in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A hard endoscope water and air supply device based on a sleeve structure comprises a sleeve, a connector and a delivery tube, wherein the sleeve is nested with the body of the laparoscope, and the connector is connected to the eyepiece end of the laparoscope; and after the sleeve is connected to the body of the laparoscope, the laparoscope lens is flush with the front end surface of the sleeve;

[0007] The connector has a cavity inside and a water supply connection pipe and an air supply connection pipe connected to the cavity on the side;

[0008] The delivery tube is arranged along the outer side surface of the sleeve, one end of the delivery tube is connected to the cavity of the connector, and the other end extends to the front end of the sleeve and bends downward, and the nozzle direction of the connecting tube is aligned with the center of the laparoscope lens.

[0009] With the above technical solution, during surgery, the sleeve structure of the present application is nested with the laparoscope body, and the rear end of the sleeve is clamped with the eyepiece end behind the laparoscope through the connector and locked, so that the laparoscope lens is connected to the water and air supply device of the present application as a whole, and the front end of the sleeve is an oblique surface or a straight surface flush with the laparoscope lens. After the sleeve and the laparoscope are combined, they can enter the human body together through the laparoscope puncture device (poke card). When the laparoscope lens is atomized or contaminated with blood stains, water is first filled into the connector cavity through the water supply connecting pipe on the connector, and water is sprayed at the center of the laparoscope lens through the delivery pipe under the action of pressure. Since the mirror surface is an oblique surface or a straight surface, part of the water will be washed downward along the mirror surface, and the other part will diffuse to the upper side of the mirror surface, which can wash away the blood stains, and then carbon dioxide (30-35°C) is sprayed into the cavity through the air supply connecting pipe to achieve the purpose of quickly cleaning the lens.

[0010] As a preferred technical solution of the present application, a square groove is provided on the connecting head, which cooperates with the eyepiece end of the laparoscope, and locking holes are provided on both side walls of the square groove. When the square groove cooperates with the eyepiece of the laparoscope, bolts are passed through the locking holes to tighten against the side walls of the eyepiece end of the laparoscope.

[0011] As a preferred technical solution of the present application, the water supply connecting pipe and the air supply connecting pipe are the same connecting pipe, and a control valve is provided on the connecting pipe, which connects the water supply device and the air supply device through a hose.

[0012] As a preferred technical solution of the present application, the water supply connecting pipe and the air supply connecting pipe are two connecting pipes, which are respectively arranged on both sides of the connecting head.

[0013] As a preferred technical solution of the present application, the sleeve is made of stainless steel with a wall thickness of 0.2 mm.

[0014] As a preferred technical solution of the present application, the delivery tube is a hollow stainless steel capillary tube with an outer diameter of 1 mm and an inner diameter of 0.6 mm, and the delivery tube is closely attached to the outer side of the sleeve.

[0015] As a preferred technical solution of the present application, the delivery pipe is connected to the sleeve via a welding sheet, or is connected to the sleeve in the form of spot welding.

[0016] As a preferred technical solution of the present application, the delivery tube extends to 1.5mm-3mm from the front end of the sleeve, and the bend is arc-shaped.

[0017] The beneficial effects are as follows: the water and air supply device of the utility model can cooperate with a laparoscope without changing the structure of the laparoscope, can be adapted to the existing laparoscope, and can enter the human body through a peritoneal puncture device (puncture card) when in use, and can realize water spraying and air jet cleaning on the lens, effectively cleaning the lens during surgery, avoiding contamination of the laparoscope lens, improving the doctor's clarity of observation of the surgical site, improving the surgical accuracy, and improving the surgical efficiency.

[0018] Furthermore, the water and air supply device of the present application has a simple structure, can be widely promoted, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0021] Figure 2 It is a top view structural diagram of the utility model;

[0022] Figure 3 It is a top view of the structure of the utility model in cooperation with a laparoscope;

[0023] Figure 4 This is a main structural diagram of the utility model in cooperation with a laparoscope;

[0024] Figure 5 It is a stereoscopic diagram of the utility model in cooperation with a laparoscope;

[0025] Figure 6 It is an enlarged view of the lens end structure of the sleeve of the utility model and the laparoscope body.

[0026] The following are the descriptions of the reference numerals:

[0027] 1. Connector; 1a. Square groove; 2. Sleeve; 3. Delivery pipe; 4. Air supply connection pipe; 5. Water supply connection pipe; 6. Welding piece; 7. Lens; 8. Eyepiece end. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0029] See also Figure 1-Figure 6 As shown, the utility model provides a hard endoscope water and air supply device based on a sleeve structure, including a sleeve 2, a connector 1 and a delivery tube 3, wherein the sleeve 2 is nested with the body of the laparoscope, and the connector 1 is connected to the eyepiece end 8 of the laparoscope; and after the sleeve 2 is connected to the body of the laparoscope, the laparoscope lens 7 is flush with the front end surface of the sleeve 2, both of which are beveled surfaces or straight surfaces; the sleeve 2 has a good fit with the body of the laparoscope, and both of them enter the human body at the same time without causing other effects on the human body.

[0030] The connector 1 has a cavity inside, and a water supply connection pipe 5 and an air supply connection pipe 4 connected to the cavity are provided on the side. The delivery pipe 3 is attached to the outer wall of the sleeve 2 and connected to the cavity of the connector 1, which is convenient for water and air supply. When delivering water and air, since the diameter of the delivery pipe 3 is relatively thin, the cavity of the connector 1 can be filled first to ensure the continuity of water and air supply. The water supply connection pipe 5 can be connected to a water supply device, and the air supply connection pipe 4 can be connected to an air supply device. During surgery, water and air can be supplied to clean the lens 7 respectively to avoid contamination and improve the clarity of the surgical field of view.

[0031] The delivery tube 3 is arranged along the outer side of the sleeve 2, one end of the delivery tube 3 is connected to the cavity of the connector 1, and the other end extends to the front end of the sleeve 2 and bends downward, with the nozzle direction of the connection tube aligned with the center of the laparoscope lens 7. The delivery tube 3 extends to 1.5mm-3mm from the front end of the sleeve 2, and the bend is an arc. Preferably, the delivery tube 3 extends 2mm from the front end of the sleeve 2. Since the mirror surface of the lens 7 is a beveled surface or a straight surface, part of the water will be washed downward along the mirror surface, and the other part will spread to the upper side of the mirror surface, which can wash away the blood stains and effectively clean the lens 7.

[0032] With the above technical solution, during surgery, the sleeve 2 structure of the present application is nested with the laparoscope body, and the rear end of the sleeve 2 is clamped with the eyepiece end 8 behind the laparoscope through the connector 1 and locked, so that the laparoscope is connected to the water and air supply device of the present application as a whole, and the front end of the sleeve 2 is an oblique cut surface flush with the laparoscope lens 7. After the sleeve 2 and the laparoscope are combined, they can enter the human body together through the laparoscope connector (poke card). When the laparoscope lens 7 is atomized or contaminated with blood stains, water is first filled into the cavity of the connector 1 through the water supply connecting pipe 5 on the connector 1, and water is sprayed at the center of the laparoscope lens 7 through the delivery pipe 3 under the action of pressure. Since the mirror surface of the lens 7 is an oblique cut surface or a straight surface, part of the water will be washed downward along the mirror surface, and the other part will diffuse to the upper side of the mirror surface, which can wash away the blood stains, and then carbon dioxide (30-35°C) is sprayed into the cavity through the air supply connecting pipe 4 to achieve the purpose of quickly cleaning the lens 7.

[0033] As a preferred embodiment of the present invention, the connector 1 is provided with a square groove 1a, which cooperates with the eyepiece end 8 of the laparoscope, and locking holes are provided on the two side walls of the square groove 1a. When the square groove 1a cooperates with the eyepiece of the laparoscope, a bolt passes through the locking hole and is connected to the eyepiece of the laparoscope.

[0034] The side wall of end 8 is pressed tightly, and the structure is clamped with the eyepiece end 8 of the laparoscope through the square groove 1a, which firstly prevents the water and air supply device of the present application from rotating, and secondly can be connected to the laparoscope as a whole for easy use.

[0035] As one embodiment of the present invention, the water supply connecting pipe 5 and the air supply connecting pipe 4 are the same connecting pipe, and a control valve is provided on the connecting pipe, and the control valve connects the water supply device and the air supply device through a hose. In this embodiment, the water supply and the air supply can be adjusted and switched by the control valve, which is convenient to use during the operation.

[0036] As another embodiment of the present case, the water supply connecting tube 5 and the air supply connecting tube 4 are two connecting tubes, which are respectively arranged on the left and right sides of the connecting head 1. The water supply connecting tube 5 and the air supply connecting tube 4 are both standard Luer connectors, which can be reliably connected to existing water supply and air supply medical connectors.

[0037] Furthermore, the sleeve 2 is made of stainless steel with a wall thickness of 0.2 mm. The delivery tube 3 is a hollow stainless steel capillary tube with an outer diameter of 1 mm and an inner diameter of 0.6 mm, and the delivery tube 3 is closely attached to the outer side of the sleeve 2. The design of this structure can be fully compatible with the laparoscope and does not affect the normal use of the laparoscope. The diameter design of the delivery tube 3 is also within the range of the puncture card and the laparoscope.

[0038] Optionally, the delivery pipe 3 is connected to the sleeve 2 via a welding sheet 6 or is connected to the sleeve 2 in a spot welding manner. The delivery pipe 3 is fixedly attached to the surface of the sleeve 2.

[0039] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A water and air supply device for a hard endoscope based on a sleeve structure, characterized in that: It comprises a sleeve, a connector and a delivery tube, wherein the sleeve is nested with the body of the laparoscope, and the connector is connected to the eyepiece end of the laparoscope; and after the sleeve is connected to the body of the laparoscope, the laparoscope lens is flush with the front end surface of the sleeve; The connector has a cavity inside and a water supply connection pipe and an air supply connection pipe connected to the cavity on the side; The delivery tube is arranged along the outer side surface of the sleeve, one end of the delivery tube is connected to the cavity of the connector, and the other end extends to the front end of the sleeve and bends downward, and the nozzle direction of the connecting tube is aligned with the center of the laparoscope lens.

2. The water and air supply device for a hard endoscope based on a sleeve structure according to claim 1, characterized in that: The connector is provided with a square groove which cooperates with the eyepiece end of the laparoscope, and locking holes are provided on both side walls of the square groove. When the square groove cooperates with the eyepiece of the laparoscope, bolts are passed through the locking holes to tighten against the side walls of the eyepiece end of the laparoscope.

3. The water and air supply device for a hard endoscope based on a sleeve structure according to claim 1, characterized in that: The water supply connecting pipe and the air supply connecting pipe are the same connecting pipe, and a control valve is arranged on the connecting pipe, and the control valve connects the water supply device and the air supply device through a hose.

4. The water and air supply device for a hard endoscope based on a sleeve structure according to claim 1, characterized in that: The water supply connecting pipe and the air supply connecting pipe are two connecting pipes, which are respectively arranged on both sides of the connecting head.

5. The water and air supply device for a hard endoscope based on a sleeve structure according to any one of claims 1 to 4, characterized in that: The sleeve is made of stainless steel with a wall thickness of 0.2 mm.

6. The water and air supply device for a hard endoscope based on a sleeve structure according to claim 5, characterized in that: The delivery tube is a hollow stainless steel capillary tube with an outer diameter of 1 mm and an inner diameter of 0.6 mm, and the delivery tube is closely attached to the outer side of the sleeve.

7. The water and air supply device for a hard endoscope based on a sleeve structure according to claim 6, characterized in that: The delivery pipe is connected to the sleeve via a welding sheet or in the form of spot welding.

8. The water and air supply device for a hard endoscope based on a sleeve structure according to claim 1, characterized in that: The delivery tube extends to 1.5mm-3mm from the front end of the sleeve, and the bending part is arc-shaped.

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