A negative pressure indicator and electrically powered ligator

Abstract

The utility model relates to a kind of negative pressure indicator and electric ligation device, for a kind of negative pressure indicator, comprising: display screen, install in the top of the shell of ligation device, for showing the start-stop state of negative pressure pump, also for showing the negative pressure value of negative pressure pump;Battery, installed in the tail of shell, for power supply for negative pressure pump and display screen;Switch, installed in shell, for controlling negative pressure pump start-stop;Button, installed in the outside of shell, middle part is hinged with shell, by pressing button located in the two sides of its hinged place, drive switch opening and closing.In the top of ligation device shell, display screen is additionally provided, and the start-stop state of negative pressure pump and current negative pressure value are dynamically displayed in real time, convert the adsorption process of traditional dependence subjective judgment into objective data monitoring, operator can intuitively obtain negative pressure parameter, thoroughly avoid the problem of visual blind area caused by non-transparent ligation pipe, ensure the accurate judgment of adsorption completion degree.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a banding device for treating hemorrhoids, specifically a negative pressure indicator and its electric banding device. Background Technology

[0002] In the field of hemorrhoid treatment, banding is a widely used minimally invasive treatment method. Its core principle is to use a negative pressure suction device to suck the hemorrhoid tissue into the banding tube, and then use an elastic rubber band to band the root of the hemorrhoid to block the blood supply and promote the shrinkage and shedding of the hemorrhoid.

[0003] However, existing banding devices have significant technical defects in the negative pressure adsorption process: negative pressure adsorption relies on the pump to provide continuous negative pressure, but in clinical operation, the negative pressure pump may fail due to mechanical failure or power interruption, so it is necessary to judge whether adsorption has been completed manually. There are generally two methods for judgment. The first is manual observation. The banding tube is mostly made of non-transparent material to optimize structural strength, and the operator cannot judge the internal adsorption state by direct observation. The operator can only guess the degree of adsorption completion based on experience, resulting in insufficient operation accuracy. The other method is to apply external force to pull the banding device to sense the adsorption resistance. Not only is the judgment highly subjective due to individual patient differences (such as tissue toughness and adsorption area), but the external force may tear the fragile hemorrhoid tissue, causing bleeding, increased pain or secondary trauma, which significantly reduces the safety and comfort of treatment.

[0004] The above issues indicate that there is a significant technological gap in the negative pressure adsorption monitoring of existing banding devices. There is an urgent need for an objective, real-time, and non-invasive method for monitoring the adsorption status in order to optimize operational accuracy, reduce the risk of complications, and improve the patient's treatment experience. Utility Model Content

[0005] To address the technical problems in the background art, this utility model discloses a negative pressure indicator and its electric bandaging device.

[0006] This utility model provides a negative pressure indicator, comprising:

[0007] The display screen, mounted on the top of the sleeve housing, is used to show the start / stop status of the negative pressure pump and also to show the negative pressure value of the negative pressure pump;

[0008] The battery, installed at the rear of the housing, powers the negative pressure pump and the display screen.

[0009] The switch, installed inside the housing, is used to control the start and stop of the negative pressure pump;

[0010] The button is installed on the outside of the housing, with its middle part hinged to the housing. Pressing the button on both sides of its hinge point drives the switch to open and close.

[0011] A push rod is connected to the upper side of the button at its hinge; the end of the push rod that contacts the switch is a pressure head; a trigger head is provided on the switch; by pressing the part of the button located on both sides of its hinge, the push rod is driven to move back and forth, so that the pressure head drives the trigger head to press into the switch or away from the trigger head.

[0012] The beneficial effects of the above settings are: 1. A display screen is added to the top of the ligation device housing to dynamically display the start / stop status of the negative pressure pump and the current negative pressure value in real time. This transforms the traditional adsorption process, which relies on subjective judgment, into objective data monitoring. Operators can intuitively obtain negative pressure parameters, completely avoiding the visual blind spot problem caused by non-transparent ligation tubes, and ensuring accurate judgment of adsorption completion; 2. It avoids the mechanical traction of the patient's hemorrhoid tissue by the traditional tensile testing method, eliminating the risk of secondary trauma and significantly improving treatment safety; 3. It adopts a hinged button-driven switch design, which controls the start / stop of the negative pressure pump by pressing the button at different positions. This makes operation simple and reduces the risk of accidental activation.

[0013] The specific structure of the button-driven switch for opening and closing is as follows:

[0014] The stability of the push rod's movement directly affects the accuracy of the switch triggering. Based on this, a further improvement is made by: providing a guide plate inside the housing, with the guide plate and the switch forming a guide groove; the push rod is inserted into the guide groove.

[0015] To improve the stability of the switch triggering, the following design features are provided: an opening slot and a closing slot are provided on the guide plate; a locking block is provided on the pressure head; when the pressure head is connected to the trigger head, the locking block engages with the opening slot; when the pressure head is away from the trigger head, the locking block engages with the closing slot.

[0016] When the negative pressure pump is turned off, the pressure return tube remains under negative pressure, making it difficult to detach from the hemorrhoid tissue. Therefore, a further improvement is made: a plug is installed on the lower side of the switch at its hinge; a ligation tube for adsorbing hemorrhoid tissue is installed inside the housing; a pressure return tube corresponding to the plug extends from the ligation tube; pressing the button on either side of the hinge seals or moves the plug away from the pressure return tube. With this design, when the upper side of the button is pressed, causing the pressure head to contact the trigger head and opening the switch, the negative pressure pump starts, and the plug seals the pressure return tube, preventing air leakage. When the ligator needs to detach from the hemorrhoid tissue, pressing the lower side of the button disengages the pressure head from the trigger head, turning off the negative pressure pump. At this point, the plug disengages from the pressure return tube, connecting it to the outside environment. The air pressure inside and outside the pressure return tube remains consistent, allowing the ligator to detach from the hemorrhoid tissue without resistance.

[0017] The specific structure of the pressure-reinforcing pipe and the plug is as follows: the pressure-reinforcing pipe extends obliquely downward toward the plug; when the plug is in a position away from the pressure-reinforcing pipe, the plug extends downward toward the pressure-reinforcing pipe; the sealing part of the plug is frustum-shaped.

[0018] To ensure that the sealing part can be accurately inserted into the pressure-reinforcing pipe, a further design is made: the upper side of the sealing part is flush with the plug, and the lower side forms an obtuse angle with the plug.

[0019] This utility model also discloses an electric ligation device, including a negative pressure indicator. This design allows the ligation device to more accurately and conveniently determine the state of hemorrhoid tissue adsorption by the ligation tube, bringing greater convenience to the surgery. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a structural schematic diagram of the present invention, in which some parts are hidden;

[0022] Figure 2 This is a front view of the present invention, in which the negative pressure pump is in the start-up state;

[0023] Figure 3 yes Figure 2 An enlarged view of point A in the middle, with some parts hidden;

[0024] Figure 4 This is a front view of the present invention, in which the negative pressure pump is in the off state;

[0025] Figure 5 yes Figure 4 An enlarged view of point B, with some parts hidden;

[0026] Figure 6 This is a schematic diagram showing the locations of the plug and the pressure-reinforcing pipe;

[0027] Figure 7 This is a schematic diagram of the hidden parts of the present invention and the connection structure of the display circuit;

[0028] In the diagram: 1. Display screen; 2. Housing; 3. Negative pressure pump; 4. Battery; 5. Switch; 6. Button; 7. Push rod; 8. Guide plate; 9. Plug; 10. Sleeve; 11. Pressure tube; 12. PCB board; 13. Pressure sensor; 14. Handle; 51. Trigger head; 71. Pressure head; 72. Locking block; 81. Opening slot; 82. Closing slot; 91. Sealing part. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0030] Example 1:

[0031] like Figure 1-5As shown, this utility model discloses a negative pressure indicator, including a display screen 1, a battery 4, a switch 4, and a button 6 installed on the ligator housing 2.

[0032] by Figure 2 For reference, a horizontally arranged ligation tube 10 is provided in the upper part of the housing 2 for adsorbing hemorrhoid tissue. A handle 14 is provided on the lower side of the housing 2 for gripping. A connecting pipe extends from the area of ​​the ligation tube 10 above the handle 14 to the handle 14, and the connecting pipe is connected to the inlet of the negative pressure pump 3 inside the handle 14.

[0033] Display screen 1, mounted on the top of the housing 2 of the bandage, is used to display the start / stop status of the negative pressure pump 3, and also to display the negative pressure value of the negative pressure pump 3.

[0034] Battery 4 is installed on the upper right side of housing 2, and switch 4 is installed at the upper end of handle 14 to control the start and stop of negative pressure pump 3. A horizontally arranged PCB board 12 is set on the upper part of housing 2, below display screen 1. Pressure sensor 13 is installed on PCB board 12. Its detection end is connected to ligation tube 10 through detection tube to detect the negative pressure value in ligation tube 10 and transmit the negative pressure value to display screen 1 for display.

[0035] like Figure 7 As shown, a button 6, hinged to the housing 2, is located on the left side of the handle 14. The middle part of the button 6 is hinged to the housing 2. A push rod 7 is connected to the upper side of the button 6 at its hinge point. The end of the push rod 7 that contacts the switch 4 is a pressure head 71. A trigger head 51 is provided on the switch 4. By pressing the parts of the button 6 located on both sides of its hinge point, the push rod 7 is driven to move back and forth, causing the pressure head 71 to drive the trigger head 51 to press into or away from the switch 4. A guide plate 8 is also provided inside the housing 2, above the switch 4. The lower end face of the guide plate 8 is parallel to the upper end face of the switch 4, thus forming a guide groove. The pressure head 71 is inserted into the guide groove to achieve movement guidance. The lower end face of the guide plate 8 is also provided with an opening slot 81 and a closing slot 82 arranged at intervals; the pressure head 71 is provided with a locking block 72; when the pressure head 71 is connected to the trigger head 51, the locking block 72 engages with the opening slot 81; when the pressure head 71 is away from the trigger head 51, the locking block 72 engages with the closing slot 82.

[0036] When the negative pressure pump 3 is turned off, the pressure return tube 11 remains under negative pressure, making it difficult to detach from the hemorrhoid tissue. Therefore, a plug 9 is provided on the lower side of the hinge of the switch 4. A ligating tube 10 for adsorbing hemorrhoid tissue is provided inside the housing 2. The pressure return tube 11 corresponding to the plug 9 extends from the ligating tube 10. By pressing the part of the button 6 located on both sides of its hinge, the plug 9 is blocked or moved away from the pressure return tube 11. With this configuration, when the upper side of the button 6 is pressed, the pressure head 71 contacts the trigger head 51 and the switch 4 is turned on, the negative pressure pump 3 starts, and the plug 9 blocks the pressure return tube 11 to prevent air leakage. When the ligator needs to be removed from the hemorrhoid tissue, the lower side of the button 6 is pressed, the pressure head 71 is disengaged from the trigger head 51, the negative pressure pump 3 is turned off, the plug 9 is disengaged from the pressure return tube 11, the pressure return tube 11 is connected to the outside, and the air pressure inside and outside the pressure return tube 11 is kept consistent, allowing the ligator to detach from the hemorrhoid tissue without resistance.

[0037] like Figure 6 As shown, the pressure-reinforcing pipe 11 extends obliquely downward toward the plug 9; when the plug 9 is in a position away from the pressure-reinforcing pipe 11, the plug 9 extends downward toward the pressure-reinforcing pipe 11; the sealing part 91 of the plug 9 is frustoconical. The upper side of the sealing part 91 is flush with the plug 9, and the lower side forms an obtuse angle with the plug 9. With this configuration, when the lower side of the hinge of the button 6 is pressed, the sealing part 91 can accurately block the pressure-reinforcing pipe 11.

[0038] Compared with existing technologies, the advantages of this embodiment are: 1. A display screen 1 is added to the top of the ligator housing 2 to dynamically display the start / stop status of the negative pressure pump 3 and the current negative pressure value in real time. This transforms the traditional adsorption process, which relies on subjective judgment, into objective data monitoring. The operator can intuitively obtain the negative pressure parameters, completely avoiding the visual blind spot problem caused by the non-transparent ligation tube 10, and ensuring accurate judgment of the adsorption completion degree; 2. It avoids the mechanical traction of the patient's hemorrhoid tissue by the traditional tensile testing method, eliminates the risk of secondary trauma, and significantly improves the safety of treatment; 3. It adopts a hinged button 6 to drive the switch 4 design. The start / stop control of the negative pressure pump 3 can be achieved by pressing the button 6 at different positions. The operation is simple and reduces the risk of accidental touch.

[0039] Example 2: This utility model also discloses an electric ligation device, including a negative pressure indicator as described in Example 1. With this configuration, the ligation device can more accurately and conveniently determine the state of hemorrhoid tissue adsorbed by the ligation tube 10, bringing greater convenience to the surgery.

[0040] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A negative pressure indicator, characterized in that, include: The display screen (1), installed on the top of the housing (2) of the bandage, is used to display the start and stop status of the negative pressure pump (3) and also to display the negative pressure value of the negative pressure pump (3); A battery (4) is installed at the tail of the housing (2) to power the negative pressure pump (3) and the display screen (1); A switch (5) is installed inside the housing (2) and is used to control the start and stop of the negative pressure pump (3); Button (6) is installed on the outside of the housing (2), and its middle part is hinged to the housing (2). By pressing the two sides of the button (6) located at its hinge, the switch (5) is driven to open and close. The button (6) is connected to a push rod (7) on the upper side of its hinge; The end of the push rod (7) that contacts the switch (5) is designated as a pressure head (71); The switch (5) is provided with a trigger head (51); By pressing the portion of the button (6) located on both sides of its hinge, the push rod (7) is driven to move back and forth, causing the pressure head (71) to drive the trigger head (51) to press into or away from the switch (5).

2. A negative pressure indicator according to claim 1, characterized in that: A guide plate (8) is provided inside the housing (2), and the guide plate (8) and the switch (5) form a guide groove; The push rod (7) is inserted into the guide groove.

3. A negative pressure indicator according to claim 2, characterized in that: The guide plate (8) is provided with an opening slot (81) and a closing slot (82); The pressure head (71) is provided with a locking block (72); When the pressure head (71) is connected to the trigger head (51), the locking block (72) engages with the opening slot (81); When the pressure head (71) moves away from the trigger head (51), the locking block (72) engages with the closing slot (82).

4. A negative pressure indicator according to claim 1, characterized in that: The button (6) is provided with a plug (9) on the lower side of its hinge; The housing (2) is provided with a ligation tube (10) for adsorbing hemorrhoid tissue; The ligature tube (10) leads out to a pressure relief tube (11) corresponding to the plug (9); By pressing the portion of the button (6) located on both sides of its hinge, the plug (9) is blocked or moved away from the pressure pipe (11).

5. A negative pressure indicator according to claim 4, characterized in that: The pressure pipe (11) extends obliquely downward toward the plug (9); When the plug (9) is in a position away from the pressure pipe (11), the plug (9) extends obliquely downward toward the pressure pipe (11); The sealing part (91) of the plug (9) is frustum-shaped.

6. A negative pressure indicator according to claim 5, characterized in that: The upper side of the sealing part (91) is flush with the plug (9), and the lower side forms an obtuse angle with the plug (9).

7. An electric ligation device, characterized in that: Includes a negative pressure indicator as described in any one of claims 1-6.

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