Laparoscope capable of preventing gastric juice from flowing backwards

Abstract

The utility model relates to the technical field of gastrointestinal surgical instruments, in particular to a laparoscope for preventing gastric juice from flowing backwards, which comprises an operating tube, a first cavity, a second cavity and a third cavity are arranged in the operating tube, a support rod is movably arranged in the first cavity, and the front end of the support rod is arranged at the front end of the operating tube in a penetrating manner; the sliding grooves are formed in the upper end and the lower end of the first cavity; the sliding block is fixedly arranged in the middle of the supporting rod; and the extrusion bag is arranged at the lower end of the operation tube, and the upper end of the extrusion bag communicates with the third cavity. The defects in the prior art are overcome, when a surgical instrument retreats from the interior of the operation tube, the one-way sealing plate is driven by the reset spring to reset to seal the third cavity, meanwhile, the interior of the operation tube is inflated by opening the one-way valve and pressing the extrusion bag, the risk that gastric juice flows backwards can be reduced, and the working efficiency is improved. When the pressure in the abdominal cavity is equal to the pressure in the stomach, gastric juice does not easily flow back to the esophagus and the oral cavity, so that the operation area is prevented from being polluted.

Description

Technical Field

[0001] The utility model relates to the technical field of gastrointestinal surgical instruments, in particular to a laparoscope capable of preventing gastric juice from flowing back. Background Art

[0002] The main treatment scope of gastrointestinal surgery is for the stomach, small intestine, large intestine or rectum. The main diseases of gastrointestinal surgery are still mainly tumors of the stomach and colorectum, that is, gastric cancer, intestinal cancer and rectal cancer in the usual sense all need to be diagnosed and treated by gastrointestinal surgeons. In recent years, the scope of gastrointestinal surgery has been further expanded, and laparoscopy can usually be used for minimally invasive surgery. Combined with the existing literature, a gastrointestinal surgery laparoscope (CN215078313U) is described in the literature. The movable handle is movably connected to the movable shaft. The movable handle is composed of an aluminum alloy layer, a high manganese steel layer, a ceramic metal layer and an alloy metal layer, which has a wear-resistant effect, thereby improving the friction performance of the laparoscope. It can be seen that at least the following defects are exposed during use:

[0003] 1. During laparoscopic surgery, multiple instruments need to be switched according to the condition. During the operation, the pressure in the abdominal cavity increases, and the pressure in the stomach will also increase accordingly, which makes it easy for gastric juice to reflux upward during the switching process. The upward reflux of gastric juice will contaminate the surgical area, which may affect the doctor's field of vision and operation, and increase the difficulty and risk of the operation.

[0004] 2. Laparoscopic surgery requires inserting a camera through a small hole to observe the area where the instrument is operated. Due to the large number of organs in the abdominal cavity, it is sometimes difficult or limited to observe specific parts, and a comprehensive view may not be obtained, and the field of view is limited by the obstruction of the organs. Utility Model Content

[0005] The utility model aims to provide a laparoscope capable of preventing gastric juice from flowing back, so as to solve the problems of the existing laparoscope in the use process proposed in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A laparoscope for preventing gastric fluid backflow comprises an operating tube, which is provided with a first cavity, a second cavity and a third cavity inside, a support rod movably provided inside the first cavity, and the front end of the support rod is penetrated and arranged at the front end of the operating tube; a slide groove is provided at the upper and lower ends of the first cavity; a slider is fixedly arranged in the middle of the support rod; an extrusion bag is arranged at the lower end of the operating tube, and the upper end of the extrusion bag is connected to the third cavity; and a one-way sealing plate is rotatably arranged at the upper end of the third cavity.

[0008] Preferably, an inclined return spring is fixedly connected between the lower end of the one-way sealing plate and the third cavity.

[0009] Preferably, the operating tube further includes: a camera, which is arranged at the front end of the operating tube, one side of the camera is connected to an optical fiber, and the optical fiber is located inside the second cavity; an eyepiece, which is arranged at the rear end of the operating tube, and the eyepiece is connected to the other end of the optical fiber.

[0010] Preferably, a fixing plate is fixedly provided in the middle of the first cavity, and the fixing plate is located on the left side of the slide groove, and the support rod passes through the fixing plate and out of the operating tube.

[0011] Preferably, a spring is sleeved on the outer side of the middle part of the support rod, one side of the spring is connected to the fixing plate, and the other end of the spring is connected to the sliding block.

[0012] Preferably, a one-way valve is provided at the upper end of the extrusion bag.

[0013] Preferably, a through hole is provided at the front end of the operating tube.

[0014] The present invention provides a laparoscope for preventing gastric juice from flowing back, which has the following beneficial effects:

[0015] 1. By setting up an extrusion bag, a one-way sealing plate and a reset spring, when the surgical instrument withdraws from the operating tube, the reset spring drives the one-way sealing plate to reset and seal the third cavity. At the same time, by opening the one-way valve and pressing the extrusion bag to inflate the inside of the operating tube, the risk of gastric juice reflux can be reduced. When the pressure in the abdominal cavity and the stomach is equal, gastric juice is not easy to flow back to the esophagus and oral cavity, thereby avoiding contamination of the surgical area.

[0016] 2. By setting the support rod, slider and slide groove, during laparoscopic surgery, medical staff can push the support rod, and the support rod moves toward the front end along the slide groove, so that during laparoscopic surgery, the support rod can open the surrounding organ tissues, making the area illuminated by the camera larger and clearer, thereby making the surgical area clearer and more visible. At the same time, surgical instruments can also move freely and reduce interference between instruments and organs, which can provide better operating space and enable doctors to more accurately locate lesions for operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the rear side planar structure of the operating tube of the utility model;

[0020] Figure 3 It is a schematic diagram of the right side cross-sectional plan structure of the operating tube, the first cavity and the second cavity of the utility model;

[0021] Figure 4 It is a schematic diagram of the left side cross-sectional plan structure of the third cavity of the operating tube of the utility model.

[0022] In the figure: 1. operating tube; 2. first cavity; 3. second cavity; 4. third cavity; 5. extrusion bag; 6. one-way valve; 7. support rod; 8. camera; 9. through hole; 10. fixing plate; 11. slide groove; 12. slider; 13. spring; 14. optical fiber; 15. eyepiece; 16. one-way sealing plate; 17. reset spring. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0024] Example: Figure 1 As shown, a laparoscope for preventing gastric juice from backflowing includes an operating tube 1. A camera 8 is arranged at the front end of the operating tube 1. The camera 8 can capture the image inside the laparoscope in real time and transmit it to a display screen for the doctor to observe. The doctor can understand the pathological changes and abnormal conditions of organs and tissues and the conditions of the surgical operation area by observing the images from the camera.

[0025] like Figure 2-3 As shown, three cavities are respectively provided inside the operating tube 1, namely the first cavity 2, the second cavity 3 and the third cavity 4, and the three cavities are not interconnected. The camera 8 is located at the front end of the second cavity 3, and the optical fiber 14 connected to the rear side of the camera 8 is located inside the second cavity 3. During laparoscopic surgery, some surgical instruments will be used for operation. Placing the optical fiber 14 inside the second cavity 3 can reduce the interference between the optical fiber 14 and other instruments. If the optical fiber 14 is placed outside, it may be collided or interfered with by the instrument, resulting in a decrease in image quality.

[0026] like Figure 3As shown, a support rod 7 is movably installed inside the first cavity 2, and a slider 12 is fixedly arranged in the middle of the support rod 7, and the slider 12 is arranged in a T shape. A slide groove 11 is opened on the upper and lower sides of the first cavity 2, and the slider 12 is movably arranged inside the slide groove 11, and a fixing plate 10 is fixedly arranged on the left end of the slide groove 11. A spring 13 sleeved in the middle of the support rod 7 is connected to the fixing plate 10 on one side, and the other side of the spring 13 is connected to the slider 12. The front end of the support rod 7 passes through the fixing plate 10 in sequence and passes out of the outside of the operating tube 1, and the front end of the support rod 7 is located near the camera 8. When performing laparoscopic surgery, medical staff can push the support rod 7, and the support rod 7 moves toward the front end along the slide groove 11, so that during laparoscopic surgery, the support rod 7 can open the surrounding organ tissues, so that the area illuminated by the camera is larger and clearer, thereby making the operation area more clearly visible, and at the same time, the surgical instruments can also move freely and reduce the interference between the instruments and the organs, which can provide a better operating space and enable the doctor to more accurately locate the lesion for operation.

[0027] like Figure 4 As shown, when in use, the surgical instrument is placed inside the third cavity 4, and a one-way sealing plate 16 is rotatably provided at the upper end of the third cavity 4, and an inclined reset spring 17 is fixedly connected between the lower end of the one-way sealing plate 16 and the third cavity 4. When the surgical instrument enters the third cavity 4, the one-way sealing plate 16 moves downward. At this time, the reset spring 17 is in a compressed state, and the surgical instrument passes through the through hole at the front end of the operating tube 1 for operation. When the surgical instrument is replaced, when the surgical instrument withdraws from the operating tube 1, the reset spring 17 drives the one-way sealing plate to reset and close the third cavity 4. At the same time, by opening the one-way valve 6 and pressing the extrusion bag 5 to inflate the inside of the operating tube, the risk of gastric fluid reflux can be reduced. When the pressure in the abdominal cavity and the stomach is equal, gastric fluid is not easy to flow back upward to the esophagus and oral cavity, thereby avoiding contamination of the surgical area.

[0028] Working principle: When the surgical instrument enters the third cavity 4 during use, the one-way sealing plate 16 moves downward, and the reset spring 17 is in a compressed state. The surgical instrument passes through the through hole at the front end of the operating tube 1 for operation. When the surgical instrument is replaced, when the surgical instrument exits the operating tube 1, the reset spring 17 drives the one-way sealing plate to reset and seal the third cavity 4. At the same time, the one-way valve 6 is opened and the squeezing bag 5 is pressed to inflate the inside of the operating tube, which can reduce the risk of gastric fluid reflux. When the pressure in the abdominal cavity and the stomach is equal, gastric fluid is not easy to flow back to the esophagus and oral cavity, thereby avoiding surgery. The area is contaminated, and a camera 8 is provided at the front end of the operating tube 1. The camera 8 can capture the image inside the laparoscope in real time and transmit it to the display screen for the doctor to observe. The medical staff can push the support rod 7, and the support rod 7 moves toward the front end along the slide groove 11, so that in laparoscopic surgery, the support rod 7 can open the surrounding organ tissues, so that the area illuminated by the camera is larger and clearer, thereby making the operating area clearer and more visible. At the same time, the surgical instruments can also move freely and reduce the interference between the instruments and the organs, which can provide a better operating space and enable the doctor to locate the lesion more accurately for operation.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A laparoscope for preventing gastric juice from flowing back, characterized in that: include: An operating tube (1) is provided with a first cavity (2), a second cavity (3), and a third cavity (4) inside, a support rod (7) is movably provided inside the first cavity (2), and a front end of the support rod (7) is provided through the front end of the operating tube (1); A slide groove (11) is provided at the upper and lower ends of the first cavity (2); A slider (12) fixedly arranged at the middle of the support rod (7); A squeezing bag (5) is arranged at the lower end of the operating tube (1), and the upper end of the squeezing bag (5) is connected to the third cavity (4); A one-way sealing plate (16) is rotatably disposed at the upper end of the third cavity (4).

2. The laparoscope for preventing gastric juice backflow according to claim 1, characterized in that: A tilted return spring (17) is fixedly connected between the lower end of the one-way sealing plate (16) and the third cavity (4).

3. The laparoscope for preventing gastric juice backflow according to claim 1, characterized in that: The operating tube (1) further comprises: A camera (8) is arranged at the front end of the operating tube (1), one side of the camera (8) is connected to an optical fiber (14), and the optical fiber (14) is located inside the second cavity (3); An eyepiece (15) is arranged at the rear end of the operating tube (1), and the eyepiece (15) is connected to the other end of the optical fiber (14).

4. The laparoscope for preventing gastric juice backflow according to claim 1, characterized in that: A fixing plate (10) is fixedly arranged in the middle of the first cavity (2), and the fixing plate (10) is located on the left side of the slide groove (11), and the support rod (7) passes through the fixing plate (10) and passes out of the operating tube (1).

5. The laparoscope for preventing gastric juice backflow according to claim 1, characterized in that: A spring (13) is sleeved on the outer side of the middle part of the support rod (7), one side of the spring (13) is connected to the fixing plate (10), and the other end of the spring (13) is connected to the sliding block (12).

6. The laparoscope for preventing gastric juice backflow according to claim 1, characterized in that: A one-way valve (6) is provided at the upper end of the extrusion bag (5).

7. The laparoscope for preventing gastric juice backflow according to claim 1, characterized in that: The front end of the operating tube (1) is provided with a through hole (9).

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