A sleeve gastrectomy correction tube for use with a laparoscope
By designing an open guide head and cavity structure for a sleeve-shaped gastric surgical correction tube, the problems of guide tube slippage and lens atomization were solved, enabling the fixation and cleaning of the endoscope, and improving the clarity of the surgical field and ease of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG YINUO MEDICAL TECH CO LTD
- Filing Date
- 2025-03-03
- Publication Date
- 2026-07-14
AI Technical Summary
In current laparoscopic sleeve gastrectomy, the guiding tube is prone to movement and damage within the pylorus, the lens is prone to fogging and the field of vision is unclear, and contamination of digestive tract fluids affects the surgical outcome.
A sleeve-shaped gastric surgical correction tube was designed, comprising an open guide head, a correction tube body, an irrigation connector, a pressure connector, and a cavity structure. It is used to fix and clean the endoscope lens, and has irrigation and negative pressure drainage functions, adapting to the physiological curve of the digestive tract.
This technology enables the fixation and cleaning of the endoscope, improves the clarity of the surgical field, reduces slippage injuries, and enhances the convenience and safety of the procedure.
Smart Images

Figure CN224484114U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical devices, specifically to a sleeve-shaped gastric surgical correction tube used in conjunction with a laparoscopy. Background Technology
[0002] Laparoscopic sleeve gastrectomy involves using a laparoscope to vertically cut out the greater curvature of the stomach, primarily for weight loss and the treatment of type 2 diabetes. Normally, the stomach is a vital site for food metabolism; therefore, when patients experience severe obesity or severe diabetes, partial gastrectomy can be chosen to treat these conditions. Sleeve gastrectomy involves inserting a laparoscope and forceps into the abdominal cavity. With the aid of the laparoscope, the stomach is located. Once fully exposed, the position of the greater curvature is confirmed, and then the greater curvature is vertically removed using instruments. Finally, the wound is sutured.
[0003] In laparoscopic sleeve gastrectomy, a guide tube is inserted into the pylorus after passing through the stomach to initially determine the position of the laparoscopic scalpel. This scalpel is then fixed in a specific position as a cutting reference line. Therefore, proper placement of the guide tube is crucial for the smooth progress of the surgery. The inventors discovered that in existing technologies, the guide tube is prone to shifting back and forth within the pylorus, which can cause harm to the patient. Furthermore, the laparoscope lens is encased inside the guide head, and the lens is prone to fogging due to the temperature difference between the inside and outside during placement. Additionally, fluids and blood clots in the digestive tract during surgery can contaminate the lens, affecting the clarity of the field of vision.
[0004] Therefore, there is an urgent need in this field for a surgical correction tube that can clean the endoscope lens and facilitate fixation and drainage. Summary of the Invention
[0005] To address the shortcomings of existing technologies, this invention provides a sleeve-shaped gastric surgical correction tube for use with a laparoscopy. It includes an open guide head, a correction tube body, an irrigation connector, a pressure-reducing connector, an irrigation connecting tube, and a pressure-reducing connecting tube. The correction tube body has three cavities: a second irrigation cavity, a pressure-reducing cavity, and a second endoscope passage cavity. An open guide head is located at the top of the correction tube body, containing a first endoscope passage cavity and a first irrigation cavity. The front end of the first irrigation cavity communicates with the first endoscope passage cavity. A pressure-reducing hole is provided on the pressure-reducing cavity. A contrast-enhancing line is provided on the correction tube body. This correction tube structure can be used as a guide tube or for inserting a laparoscope. The pressure-reducing cavity helps to fix the correction tube in place. The open guide head allows for irrigation of the internal cavity and the endoscope lens during surgery.
[0006] The specific technical solution of this utility model is as follows:
[0007] A sleeve gastric surgical correction tube for use with laparoscopy includes an open guide head, a correction tube body, an irrigation connector, a pressure-reducing connector, an irrigation connection tube, and a pressure-reducing connection tube.
[0008] Preferably, the calibration tube body is provided with three cavities, namely a second lens passage cavity, a second flushing cavity, and a pressure extraction cavity.
[0009] Preferably, the front end of the calibration tube body is provided with an open guide head, which has a first through-scope cavity and a first flushing cavity. The front end of the first flushing cavity and the first through-scope cavity are connected and can be connected to the second flushing cavity and the second through-scope cavity in the calibration tube body. The rear end of the open guide head is provided with a plunger that corresponds to the position of the pressure chamber and is of suitable size. The open guide head is installed at the front end of the calibration tube body through the plunger and then glued and fixed.
[0010] Preferably, the first flushing chamber inside the open guide head is a curved channel with the front end of the curved channel facing the endoscope lens. During use, the endoscope lens needs to be positioned behind the connection between the first flushing chamber and the first endoscope passage chamber in order to flush the lens.
[0011] Preferably, the first and second endoscope cavities are used to place the endoscope, which passes through the first and second endoscope cavities, and the tail end can be connected to an imaging device.
[0012] Preferably, the flushing connection tube connected to the rear end of the second flushing chamber is connected to the flushing device through a flushing connector, and can be used for flushing during the operation. The second flushing chamber is connected to the first flushing chamber and the first endoscope chamber inside the open guide head, and can be used for flushing during the operation as well as for cleaning the endoscope lens.
[0013] Preferably, the suction connection tube connected to the rear end of the suction chamber is connected to a negative pressure device through a suction connector, and a suction hole is provided on one side of the front section of the suction chamber. The gas and liquid in the gastric pouch are extracted through the suction hole by using negative pressure, so that the gastric pouch is sucked flat, which facilitates the resection operation.
[0014] Preferably, a radiopaque line is provided on one side of the correction tube body to indicate the position of the correction tube during surgery.
[0015] Preferably, the correction tubes are made of flexible materials that can adapt to the physiological curves of the human digestive tract and avoid causing harm to the patient.
[0016] The sleeve-shaped gastric surgical correction tube provided by this utility model, used in conjunction with a laparoscopy, achieves the following beneficial effects:
[0017] (1) The first and second endoscope chambers are used to place the endoscope, so that medical staff can observe the gastric environment at any time during the insertion of the correction tube, help medical staff to accurately place and adjust the correction tube, and monitor whether the correction tube slips during the operation, improve suturing efficiency, and reduce the possibility of gastric leakage after the operation.
[0018] (2) There is a suction hole on one side of the suction chamber, which is used to put the stomach and the correction tube in a negative pressure state, so as to fix the correction tube.
[0019] (3) An open guide head is provided at the front end of the correction tube. The guide head is provided with a first flushing chamber and a first passage chamber that correspond to the second flushing chamber and the second passage chamber in the correction tube. Because the guide head is open, the field of vision of the laparoscope is clearer after passing through the first passage chamber. The first flushing chamber and the first passage chamber are connected. The front end of the first flushing chamber faces the lens direction and can be used to clean the lens. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of the sleeve-shaped gastric surgical correction tube of this utility model;
[0021] Figure 2 This is a schematic diagram of the front section of the sleeve-shaped gastric surgical correction tube in this utility model;
[0022] Figure 3 This is a schematic diagram of the middle section of the sleeve-shaped gastric surgical correction tube of this utility model;
[0023] Figure 4 This is a reference diagram showing the usage status of the sleeve-shaped gastric surgical correction tube of this utility model.
[0024] Wherein: 1 is an open guide head; 1-1 is the first flushing chamber; 1-2 is the first endoscope passage chamber; 1-3 is a plunger; 2 is the calibration tube body; 2-1 is the second flushing chamber; 2-2 is the pressure chamber; 2-3 is the second endoscope passage chamber; 3-1 is the flushing connector; 3-2 is the pressure connector; 4 is the endoscope; 5 is the imaging device; 6-1 is the flushing connecting tube; 6-2 is the pressure connecting tube; 7 is the pressure port; 8 is the imaging line. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0026] This invention provides a sleeve-shaped gastric surgical correction tube for use with a laparoscopy, such as... Figure 1 As shown, it includes an open guide head 1, a calibration tube body 2, a flushing connector 3-1, a pressure-reducing connector 3-2, a flushing connecting tube 6-1, and a pressure-reducing connecting tube 6-2.
[0027] The calibration tube body 2 is provided with three cavities, namely the second flushing cavity 2-1, the pressure suction cavity 2-2, and the second lens passage cavity 2-3; the flushing connecting pipe 6-1 connected to the rear end of the second flushing cavity 2-1 is connected to the flushing device through the flushing connector 3-1; the front section of the pressure suction cavity 2-2 is provided with a pressure suction hole 7, and the pressure suction connecting pipe 6-2 connected to the rear end of the pressure suction cavity 2-2 is connected to the negative pressure device through the pressure suction connector 3-2.
[0028] like Figure 2 As shown, the top of the correction tube body 2 is provided with an open guide head 1. The open guide head 1 is provided with a first flushing chamber 1-1, a first lens passage chamber 1-2 and a plunger 1-3 that is adapted to the size of the pressure chamber 2-2. The front end of the first flushing chamber 1-1 is connected to the first lens passage chamber 1-2.
[0029] Endoscope 4 passes through the first endoscope cavity 1-2 and the second endoscope cavity 2-3, and its tail is connected to imaging device 5 (e.g., imaging trachea); simultaneously, if Figure 3 As shown, the calibration tube body 2 is provided with a developing line 8.
[0030] The specific usage process of the above-mentioned calibration tube is as follows:
[0031] The open guide head 1 is installed at the front end of the calibration tube body 2 using plunger 1-3 and fixed with adhesive. The suction chamber 2-2 is closed using plunger 1-3. The first flushing chamber 1-1 and the first endoscope passage chamber 1-2 are aligned and connected with the second flushing chamber 2-1 and the second endoscope passage chamber 2-3 of the calibration tube body 2, respectively. The endoscope 4, which is connected to the imaging device 5, is passed through the second endoscope passage chamber 2-3 and the first endoscope passage chamber 1-2. The endoscope 4 lens is adjusted to be behind the connection port of the first flushing chamber 1-1 and the first endoscope passage chamber 1-2 for lens flushing. The flushing connecting tube 6-1 at the rear end of the second flushing chamber 2-1 of the calibration tube body 2 is connected to the flushing device through the flushing connector 3-1. When it is necessary to flush the body during the operation, the flushing fluid is used to flush through the second flushing chamber 2-1, the first flushing chamber 1-1, and the first endoscope passage chamber 1-2. When the user finds that the endoscope lens is fogged up or that body fluid affects the field of vision, the lens can also be cleaned in the above manner.
[0032] The front section of the suction chamber 2-2 of the correction tube body 2 is provided with a suction hole 7. The suction connecting tube 6-2 at the rear end of the suction chamber 2-2 is connected to the negative pressure device through the suction connector 3-2. The negative pressure is used to extract the gas and liquid in the gastric pouch through the suction hole 7, so that the gastric pouch is sucked flat, which facilitates the resection operation.
[0033] The correction tube body 2 has a radiopaque line 8 on one side, which is used to indicate the position of the correction tube during surgery. After the correction tube body 2 is fixed in the stomach, the radiopaque line 8 on the tube body is used as a reference line for cutting surgical instruments, and the laparoscopic sleeve gastrectomy can be performed. During the operation, the fluid, blood clots and irrigation fluid in the digestive tract can be sucked into the suction chamber 2-2 through the suction port 7 and discharged from the body through the negative pressure device.
[0034] In summary, the sleeve-shaped gastric surgical correction tube provided by this utility model can not only be used in conjunction with a laparoscope, but also serve the functions of fixation, irrigation, and drainage. The open guide head at the front of the correction tube further improves the clarity of the endoscopic field of view and makes the surgical operation more convenient.
[0035] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.
Claims
1. A sleeve-shaped gastric surgical correction tube for use with a laparoscopy, characterized in that: It includes an open guide head (1), a calibration tube body (2), a flushing connector (3-1), a pressure-drawing connector (3-2), a flushing connecting tube (6-1), and a pressure-drawing connecting tube (6-2); wherein the calibration tube body (2) is provided with three cavities, namely a second flushing cavity (2-1), a pressure-drawing cavity (2-2), and a second lens passage cavity (2-3); the open guide head (1) is provided with a first flushing cavity (1-1), a first lens passage cavity (1-2), and a plunger (1-3) that is adapted to the size of the pressure-drawing cavity (2-2).
2. The sleeve-shaped gastric surgical correction tube according to claim 1, characterized in that: The flushing connection pipe (6-1) connected to the rear end of the second flushing chamber (2-1) is connected to the flushing device through the flushing connector (3-1); the front end of the pressure chamber (2-2) is provided with a pressure hole (7), and the pressure connection pipe (6-2) connected to the rear end of the pressure chamber (2-2) is connected to the negative pressure device through the pressure connector (3-2).
3. The sleeve-shaped gastric surgical correction tube according to claim 1, characterized in that: The front end of the first flushing chamber (1-1) is connected to the first lens chamber (1-2).
4. The sleeve-shaped gastric surgical correction tube according to claim 1 or 2, characterized in that: The first flushing chamber (1-1) and the first lens passage chamber (1-2) are aligned and connected with the second flushing chamber (2-1) and the second lens passage chamber (2-3), respectively.
5. The sleeve-shaped gastric surgical correction tube according to claim 1, characterized in that: The endoscope (4) passes through the first endoscope cavity (1-2) and the second endoscope cavity (2-3), and its tail end is connected to the imaging device (5).
6. The sleeve-shaped gastric surgical correction tube according to claim 1, characterized in that: The calibration tube body (2) is provided with a developing line (8).