Portable negative pressure machine for ligation procedure
By designing a portable negative pressure pump, the problems of large size and insufficient pressure of negative pressure pumps are solved, achieving portability and stable negative pressure effect, preventing liquid from entering the pump, simplifying operation and providing the convenience of cleaning with a removable liquid storage bottle.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2026-03-31
AI Technical Summary
In the existing technology, negative pressure machines have the problems of being bulky and inconvenient to move, and miniature negative pressure machines have insufficient negative pressure, which cannot meet the portability and negative pressure requirements of banding surgery.
A portable negative pressure machine was designed, comprising a housing, a negative pressure pump, a liquid storage bottle, and a control main board. It is equipped with an air intake, a liquid storage chamber, and an air intake hose. The housing has a carrying handle and a heat dissipation grille, and is equipped with status indicator lights and a pressure gauge to ensure the portability and pressure stability of the negative pressure machine.
It achieves portability and sufficient negative pressure for the negative pressure machine, prevents tissue fluid and blood from entering the negative pressure pump, simplifies operation, provides a removable storage bottle for easy cleaning, and ensures the durability and reliability of the equipment.
Smart Images

Figure CN224056364U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a portable negative pressure device for ligation surgery. Background Technology
[0002] Rubber band ligation (also known as band ligation) is a common non-surgical treatment primarily for internal hemorrhoids. This procedure involves placing one or more rubber bands at the base of the hemorrhoid to cut off its blood supply, causing it to gradually die and fall off. In the initial stages of the ligation procedure, negative pressure is used to draw the hemorrhoid into the nozzle of the ligation gun, facilitating the placement of the rubber bands at the base of the hemorrhoid.
[0003] Currently, there are generally two ways to generate negative pressure: one is to use a large negative pressure generator, but large negative pressure generators are bulky and inconvenient to move; the other is to incorporate a miniature negative pressure generator into a ligation gun, but ligation guns are small, and miniature negative pressure generators often fail to provide sufficient negative pressure. Therefore, there is a need for a portable negative pressure generator that is both easy to move and can provide sufficient negative pressure. Utility Model Content
[0004] The purpose of this invention is to provide a portable negative pressure device for ligation surgery to solve the technical problems mentioned in the background section.
[0005] The technical solution to achieve the purpose of this utility model is: a portable negative pressure machine for ligation surgery, including a housing and a negative pressure pump, a liquid storage bottle and a control main board disposed inside the housing. The negative pressure pump is electrically connected to the control main board. An air intake is provided on the side wall of the housing. Two air intake hoses are connected to the liquid storage bottle. One air intake hose is connected to the negative pressure pump and the other air intake hose is connected to the air intake.
[0006] Furthermore, a liquid storage chamber is provided inside the housing, the liquid storage bottle is placed in the liquid storage chamber, and a through hole is provided on the side wall of the liquid storage chamber for the suction hose to pass through.
[0007] Furthermore, a cover plate is provided on the top of the liquid storage chamber, and the liquid storage bottle is detachably installed in the liquid storage chamber.
[0008] Furthermore, the liquid storage bottle has an opening at the top, and a bottle cap is provided at the opening; two suction hoses are connected to the bottle cap.
[0009] Furthermore, the bottom sides of the casing are provided with inwardly recessed handles.
[0010] Furthermore, the handle is provided with a heat dissipation grille.
[0011] Furthermore, a power interface is provided on the side wall of the housing.
[0012] Furthermore, the housing is provided with control buttons, which are electrically connected to the control motherboard.
[0013] Furthermore, the housing is equipped with a status indicator light and a pressure gauge, both of which are electrically connected to the control mainboard.
[0014] By adopting the above technical solution, this utility model has the following beneficial effects:
[0015] (1) The negative pressure machine of this utility model is small in size and easy to move and carry. It can provide sufficient negative pressure. A liquid storage bottle is set in the negative pressure machine to prevent tissue fluid, pus or blood from flowing into the negative pressure pump through the negative pressure channel along the gun barrel, causing damage to the equipment.
[0016] (2) The negative pressure machine of this utility model is provided with a liquid storage chamber, and the liquid storage bottle is detachably installed in the liquid storage chamber. When the operation is completed, the liquid storage bottle can be removed separately for cleaning.
[0017] (3) The suction hose of this utility model is connected to the bottle cap, and the liquid storage bottle can be cleaned by opening the bottle cap.
[0018] (4) The bottom sides of the negative pressure machine housing of this utility model are provided with inwardly recessed handles for easy movement and carrying.
[0019] (5) The negative pressure machine of this utility model has a heat dissipation grille on the handle, which is beneficial to the heat dissipation of the negative pressure machine.
[0020] (6) The negative pressure machine housing of this utility model is equipped with a status indicator light and a pressure gauge, which can accurately indicate the current status and simplify the operator's work. Attached Figure Description
[0021] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein...
[0022] Figure 1 This is a schematic diagram of the structure of this utility model.
[0023] Figure 2 This is a schematic diagram of the structure of this utility model with the cover plate removed.
[0024] Figure 3 This is a side view of the present invention.
[0025] Figure 4 This is a cross-sectional view of the internal structure of this utility model.
[0026] The labels in the attached diagram are as follows: 1. Housing; 2. Negative pressure pump; 3. Liquid storage bottle; 3-1. Bottle cap; 4. Air inlet; 5. Air suction hose; 6. Liquid storage chamber; 6-1. Through hole; 6-2. Cover plate; 7. Handle; 7-1. Heat dissipation grille; 8. Power interface; 9. Control button; 10. Status indicator light; 11. Pressure gauge. Detailed Implementation
[0027] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.
[0028] 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, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0031] In the description of the embodiments of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0032] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The utility model will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of this utility model and should not be used to limit the scope of protection of this utility model.
[0033] (Example 1)
[0034] See Figure 1-4 A portable negative pressure device for ligation surgery includes a housing 1 and a negative pressure pump 2, a liquid storage bottle 3 and a control main board disposed inside the housing. The negative pressure pump 2 is electrically connected to the control main board. An air inlet 4 is provided on the side wall of the housing 1. Two air inlets 5 are connected to the liquid storage bottle 3. One air inlet 5 is connected to the negative pressure pump 2 and the other air inlet 4 is connected to the air inlet 4. The air inlet 4 is connected to the ligation gun at the rear end through a negative pressure tube.
[0035] The housing 1 contains a liquid storage chamber 6, and a liquid storage bottle 3 is placed inside the liquid storage chamber 6. A through hole 6-1 is provided on the side wall of the liquid storage chamber 6 for the suction hose 5 to pass through. A cover plate 6-2 is provided on the top of the liquid storage chamber 6. One end of the cover plate 6-2 is hinged to the housing 1, and the other end is snapped into place. The cover plate 6-2 opens and closes the liquid storage chamber 6 during rotation. The liquid storage bottle 3 is detachably placed inside the liquid storage chamber 6. After opening the cover plate 6-2, the liquid storage bottle can be removed for cleaning.
[0036] The liquid storage bottle 3 has an opening at the top, and a bottle cap 3-1 is provided at the opening. Two suction hoses 5 are connected to the bottle cap 3-1. As a preferred embodiment, a sealing ring is provided between the bottle cap 3-1 and the liquid storage bottle 3. The two suction hoses 5 pass through the bottle cap 3-1 for the same length, and only pass through a very short part, to prevent the liquid in the liquid storage bottle 3 from being sucked back into the negative pressure pump 2.
[0037] The bottom sides of the casing 1 are provided with recessed carrying handles 7 for easy movement and carrying. The carrying handles 7 are provided with heat dissipation grilles 7-1 to facilitate heat dissipation of the negative pressure machine.
[0038] A power interface 8 is located on the side wall of the casing 1. Control buttons 9 are also located on the casing 1 and are electrically connected to the main control board. Control buttons 9 include a power switch and a stop button. During surgery, after the negative pressure machine is powered on, pressing the power switch turns on the power input. Pressing the stop button puts the entire negative pressure machine into standby mode. After the surgery is completed, pressing the power switch again turns off the power input. Status indicator lights 10 and pressure gauges 11 are also located on the casing 1. Both status indicator lights 10 and pressure gauges 11 are electrically connected to the main control board, accurately indicating the current status and simplifying the operator's work.
[0039] The negative pressure machine of this utility model is small in size and easy to move and carry. It can provide sufficient negative pressure. A liquid storage bottle 3 is set in the negative pressure machine to prevent tissue fluid, pus or blood from flowing into the negative pressure pump 2 through the negative pressure channel along the gun barrel, which would cause damage to the equipment.
[0040] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A portable negative pressure machine for use in ligation procedures, characterized by: The utility model provides a negative pressure pump liquid storage bottle, including casing (1) and set up in the inside of casing (1) negative pressure pump (2), liquid storage bottle (3) and control mainboard, negative pressure pump (2) is connected with control mainboard electricity, the lateral wall of casing (1) is provided with air inlet (4), and the liquid storage bottle (3) is communicated with two air suction hoses (5), one air suction hose (5) is communicated with negative pressure pump (2), and the other air suction hose (5) is communicated with air inlet (4).
2. The portable negative pressure machine for use in ligation procedures according to claim 1, characterized in that: The utility model discloses a negative pressure pump liquid storage bottle, including casing (1) and set up in the inside of casing (1) negative pressure pump (2), liquid storage bottle (3) and control mainboard, negative pressure pump (2) is connected with control mainboard electricity, the lateral wall of casing (1) is provided with air inlet (4), and the liquid storage bottle (3) is communicated with two air suction hoses (5), one air suction hose (5) is communicated with negative pressure pump (2), and the other air suction hose (5) is communicated with air inlet (4).
3. The portable negative pressure machine for use in ligation procedures according to claim 2, characterized in that: The utility model discloses a negative pressure pump liquid storage bottle, including casing (1) and set up in the inside of casing (1) negative pressure pump (2), liquid storage bottle (3) and control mainboard, negative pressure pump (2) is connected with control mainboard electricity, the lateral wall of casing (1) is provided with air inlet (4), and the liquid storage bottle (3) is communicated with two air suction hoses (5), one air suction hose (5) is communicated with negative pressure pump (2), and the other air suction hose (5) is communicated with air inlet (4).
4. The portable negative pressure machine for use in ligation procedures of claim 1, wherein: The utility model discloses a negative pressure pump liquid storage bottle, including casing (1) and set up in the inside of casing (1) negative pressure pump (2), liquid storage bottle (3) and control mainboard, negative pressure pump (2) is connected with control mainboard electricity, the lateral wall of casing (1) is provided with air inlet (4), and the liquid storage bottle (3) is communicated with two air suction hoses (5), one air suction hose (5) is communicated with negative pressure pump (2), and the other air suction hose (5) is communicated with air inlet (4).
5. The portable negative pressure machine for use in ligation procedures of claim 1, wherein: The utility model discloses a negative pressure pump liquid storage bottle, including casing (1) and set up in the inside of casing (1) negative pressure pump (2), liquid storage bottle (3) and control mainboard, negative pressure pump (2) is connected with control mainboard electricity, the lateral wall of casing (1) is provided with air inlet (4), and the liquid storage bottle (3) is communicated with two air suction hoses (5), one air suction hose (5) is communicated with negative pressure pump (2), and the other air suction hose (5) is communicated with air inlet (4).
6. The portable negative pressure machine for use in ligation procedures of claim 5, wherein: The utility model discloses a negative pressure pump liquid storage bottle, including casing (1) and set up in the inside of casing (1) negative pressure pump (2), liquid storage bottle (3) and control mainboard, negative pressure pump (2) is connected with control mainboard electricity, the lateral wall of casing (1) is provided with air inlet (4), and the liquid storage bottle (3) is communicated with two air suction hoses (5), one air suction hose (5) is communicated with negative pressure pump (2), and the other air suction hose (5) is communicated with air inlet (4).
7. The portable negative pressure machine for use in ligation procedures of claim 1, wherein: The utility model discloses a negative pressure pump liquid storage bottle, including casing (1) and set up in the inside of casing (1) negative pressure pump (2), liquid storage bottle (3) and control mainboard, negative pressure pump (2) is connected with control mainboard electricity, the lateral wall of casing (1) is provided with air inlet (4), and the liquid storage bottle (3) is communicated with two air suction hoses (5), one air suction hose (5) is communicated with negative pressure pump (2), and the other air suction hose (5) is communicated with air inlet (4).
8. The portable negative pressure machine for use in ligation procedures of claim 1, wherein: The utility model discloses a negative pressure pump liquid storage bottle, including casing (1) and set up in the inside of casing (1) negative pressure pump (2 9. The portable negative pressure machine for use in ligation procedures of claim 1, wherein: