CN116983070B

CN116983070B - Tissue clamping device

Info

Publication number: CN116983070B
Application number: CN202311142942.9A
Authority: CN
Inventors: 陈强; 朱起鹏; 张婵娟
Original assignee: Zhejiang Curaway Medical Technology Co ltd
Current assignee: Zhejiang Curaway Medical Technology Co ltd
Priority date: 2023-09-06
Filing date: 2023-09-06
Publication date: 2023-12-29
Anticipated expiration: 2043-09-06
Also published as: CN116983070A

Abstract

The invention belongs to the technical field of medical appliances and discloses a tissue clamping device which comprises an expander body and a holding handle, wherein a window is arranged below the front end of the expander body, tissues fall into the expander body from the window, a sliding strip is arranged in the expander body from the window to the holding handle, a constant force spring is arranged in the holding handle, the sliding strip is fixedly connected with the constant force spring, and the sliding strip always keeps forward constant force under the action of the constant force spring, so that the window is kept closed or the tissues in the window are kept and clamped. The open window is in a normally closed state, so that a doctor can directly insert the open window into anus without other operations after taking out the product, the operation is more convenient, the force direction is opposite to the insertion direction when the window is opened, the risk of displacement is reduced, the doctor can clamp tissues under the action of a constant force spring after opening the open window by using the driving mechanism during operation, the manual application of external force is not required, and the operation is more stable.

Description

Tissue clamping device

Technical Field

The invention belongs to the technical field of medical appliances, and particularly relates to a tissue clamping device.

Background

At present, tissue clamping is an effective hemorrhoid treatment means, and the principle is that a tissue clamping device clamps vascular tissues leading to hemorrhoids, then the clamped tissues are heated by adopting a hot melting method, blood vessels supplying blood to hemorrhoids are closed under the action of heat, and hemorrhoids fall off due to no blood supply.

The existing tissue clamping device comprises an anus dilator shell and a clamping pushing handle, wherein an opening is formed in the anus dilator shell, the opening is positioned on blood supply vascular tissues of hemorrhoids after the anus dilator shell is inserted into anus, the vascular tissues fall into the opening, and then a doctor pushes the clamping pushing handle to clamp the vascular tissues at the opening, so that the protein is denatured and solidified, and the blood vessels are closed. Such tissue clamping devices have the following disadvantages:

firstly, the doctor holds the rear handle of the clamping pushing handle to clamp the tissue, the venous plexus is located at the depth of 1-1.5mm of the rectal tissue, after bipolar clamping (clamping of double-layer rectal tissue), the ideal thermal closing thickness is 2-3mm, and the doctor can hardly judge the clamping degree. The tissue clamping device is characterized in that the rear handle of the clamping pushing handle is pushed to enable the rear handle to generate relative displacement with the sliding bar on the inner wall of the anorectal device shell to display the rectal tissue clamping thickness, but the display can be accurately displayed only by completely pressing the rear handle to the bottom. However, the force applied to the bottom is difficult to control, and the thickness of the clamped tissue and the hardness of the tissue are different due to individual differences of patients, so that stable clamping force cannot be ensured, and the clamping thickness error is large due to the fact that the ideal clamping tissue is thinner.

Secondly, the back handle is required to be pressed continuously in the treatment process so as to keep stable clamping force, and the treatment process is very laborious.

Thirdly, in the pushing process of the clamping pushing handle, a doctor is required to exert force, so that displacement can be generated in the pushing process, and the doctor can cause displacement of clamping tissues due to the change of body position in the process of stepping on a main machine pedal (an electrode power switch) or holding, so that dislocation of the clamping tissues is caused, and treatment failure or poor effect are caused.

Fourth, the rectum is gradually thinned in the thermal closing process (due to precipitation of adipose tissue and water), the rear handle is required to be continuously pressed to the bottom by a holding force in the thermal closing process, and the holding output force of the doctor is unstable, so that the double electrodes are not fully contacted with the rectum tissue in the thermal closing process, and the closing range is not ideal.

Disclosure of Invention

The present invention is directed to a tissue clamping device, which solves the above-mentioned problems.

In order to solve the technical problems, the specific technical scheme of the tissue clamping device is as follows:

the utility model provides a tissue clamping device, includes expander body and gripping handle, expander body front end below has the windowing, and the tissue falls into the expander body by the windowing, the inside part from windowing to gripping handle of expander body has the draw runner, its characterized in that, have constant force spring in the gripping handle, draw runner and constant force spring fixed connection, the draw runner keeps forward constant force all the time under constant force spring's effect to keep to seal the windowing or keep holding the tissue of holding in the windowing.

Further, a spring fixing column is fixedly connected to the inner wall of the holding handle, a hook is arranged at the tail end of the sliding bar, one end of the constant force spring is fixedly connected with the spring fixing column, and the other end of the constant force spring is hung on the hook at the tail end of the sliding bar and is fixedly connected with the sliding bar.

Further, the holding handle is provided with a driving mechanism which is used for driving the sliding bar to move backwards.

Further, the driving mechanism is a trigger, the trigger is arranged on the inner side of the holding handle, the inner wall of the holding handle is provided with a trigger sliding groove, the trigger sliding groove is arranged in parallel with the sliding strip, the sliding strip is fixedly connected with the trigger through a buckle, the trigger is manually pressed down, the trigger moves horizontally backwards along the trigger sliding groove to drive the sliding strip to retreat, the window is opened, at the moment, the constant force spring is tensioned, and after the trigger is loosened, the sliding strip moves forwards under the action of the constant force spring to close the window.

Further, the actuating mechanism is pushing handle, the pushing handle sets up at the handle rear of holding, the handle inner wall of holding has the gear fixed orifices, and the gear rotation is connected in the gear fixed orifices of handle inner wall of holding, the draw runner end has rack one, it has rack two to push the handle internal surface, rack one and rack two respectively with the gear upper and lower surface meshing, when doctor held the handle of holding and pushing the handle, inwards promote the pushing handle, under the effect of gear, the draw runner backward motion opens the window, and constant force spring is strained this moment, after releasing the pushing handle, the draw runner is closed the window under the effect of constant force spring forward movement.

Further, the expander body is a circular ring with a horn-shaped opening at one end, the front end of the expander body is a circular arc closed end, an opening which is gradually enlarged is formed from the front end to the rear end, and the lower side of the opening extends backwards and is connected with the holding handle.

Furthermore, the two sides of the inner wall of the expander body are provided with fixing grooves, limiting bar blocks are inserted and installed in the fixing grooves, and the limiting bar blocks are fixed on the upper surface of the sliding bar in a limiting mode, so that the sliding bar can move linearly under the limitation of the limiting bar blocks, and the axial deviation is avoided.

Further, the front end of the opening window of the expander body is fixedly connected with an electrode I, the front end of the sliding bar is fixedly connected with an electrode II, one electrode I and one electrode II are connected with a positive electrode of a power supply and a negative electrode of the power supply, a positive electrode and a negative electrode are formed, a wire groove is formed in the middle of the sliding bar, the electrode II is connected with the sliding bar through the wire groove by penetrating the bottom of the holding handle, a wire of the electrode I penetrates the wire groove inside the expander body through the bottom of the holding handle to be connected with the electrode I, the sliding bar is kept at the topmost end in a normal state, and the electrode I is contacted with the electrode II to close the opening window.

Further, the tail part of the sliding strip is provided with an indication mark, the indication mark is a protruding block protruding upwards on the sliding strip, a cover plate is arranged above the holding handle, a sliding groove is formed in the cover plate, and the indication mark slides in the sliding groove along with the front-back movement of the sliding strip to indicate the movement position of the current sliding strip.

Further, apron front end, open-ended entry position fixedly connected with light, have bee calling organ component and circuit board in the handle of gripping, light, bee calling organ component and circuit board electricity are connected, electrode lower extreme fixedly connected with thermocouple, the thermocouple passes through the wire and connects the circuit board, the circuit board passes through the cable and is connected with external power source, when switch-on, the light shines white light, lightens the opening inside all the time, when the thermocouple detects the tissue temperature between the electrode and is greater than or equal to T, circuit board control light becomes the red light of scintillation, and the control bee calling organ component sends the warning simultaneously.

The tissue clamping device has the following advantages: the tissue clamping device is provided with the constant force spring in the holding handle, and the sliding bar always keeps forward constant force under the action of the constant force spring, so that the closed window is kept or the tissue in the window is kept clamped. The window is in normally closed state, and convenient doctor need not other operations after taking out the product and can directly insert anus, and the operation is more convenient, and the power direction is opposite with the direction of inserting when the window is opened, reduces the risk that produces the aversion, only need utilize actuating mechanism to open the window when the doctor operates and loosen the back and can press from both sides tight tissue under the effect of constant force spring, need not the manual work and applys external force, and the operation is more stable, guarantees that the department tissue of windowing can be pressed from both sides tightly by the constant force, but not by the clamp wound, reduces patient's misery when guaranteeing the treatment. The handle is held and is equipped with the indicator, can feed back the thickness of being pressed from both sides the tissue in real time, and the operation is more accurate, simultaneously, increases thermocouple accuse temperature and pilot lamp, buzzer alarming function, guarantees operation process security.

Drawings

FIG. 1 is a cross-sectional view of a tissue gripping device of the present invention;

FIG. 2 is an exploded view of the tissue gripping device of the present invention;

FIG. 3 is a schematic diagram of a driving mechanism according to a second embodiment of the present invention;

the figure indicates: 1. a dilator body; 11. a circular arc closed end; 12. an opening; 13. windowing; 14. a fixing groove; 15. limiting bar blocks; 2. holding a handle; 21. a spring fixing column; 22. a spring; 23. a trigger sliding groove; 24. a gear fixing hole; 25. a cover plate; 251. a chute; 3. a slide bar; 31. a hook; 32. a first rack; 33. a wire slot; 34. an indication mark; 4. a driving mechanism; 41. a trigger; 42. a push handle; 421. a second rack; 43. a gear; 51. an electrode I; 52. an electrode II; 6. a thermocouple; 7. a lighting lamp; 8. a buzzer element; 9. a circuit board.

Detailed Description

For a better understanding of the objects, structure and function of the invention, a tissue clamping device according to the invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, the tissue clamping device of the present invention comprises a dilator body 1 and a holding handle 2, wherein the dilator body 1 is a circular ring shape with a horn-shaped opening at one end, the front end of the dilator body 1 is a circular arc-shaped closed end 11, an opening 12 which is gradually enlarged is arranged from the front end to the rear end, the lower side of the opening 12 extends backwards and is connected with the holding handle 2, and preferably, the dilator body 1 and the holding handle 2 are integrally formed. The grip handle 2 is used to hold the entire device for inserting the dilator body 1 into the anus or other organ entrance where treatment is desired. Tissue may be observed through the opening 12.

A window 13 is arranged below the front end of the expander body 1, and tissues fall into the expander body 1 from the window 13.

The part from the window 13 to the holding handle 2 inside the expander body 1 is provided with a sliding bar 3, a spring fixing column 21 is fixedly connected to the inner wall of the holding handle 2, a constant force spring 22 is fixedly arranged on the spring fixing column 21, the tail end of the sliding bar 3 is provided with a hook 31, one end of the constant force spring 22 is fixedly connected with the spring fixing column 21, and the other end is hung on the hook 31 at the tail end of the sliding bar 3 and fixedly connected with the sliding bar 3. The slide 3 is kept always under a constant force in the normal state by the constant force spring 22, so that the opening 13 is kept closed or the tissue in the opening is kept clamped. The holding handle 2 is provided with a driving mechanism 4, and the driving mechanism 4 is used for driving the sliding bar 3 to move backwards so as to open the window 13.

The two sides of the inner wall of the expander body 1 are provided with the fixing grooves 14, the limiting bar blocks 15 are inserted and installed in the fixing grooves 14, and the limiting bar blocks 15 are fixedly limited on the upper surface of the sliding bar 3, so that the sliding bar 3 keeps linear motion under the limitation of the limiting bar blocks 15, no axial deviation occurs, and the clamping accuracy is ensured. The fixing groove 14 and the limit bar 15 may be integrally formed, and are preferably formed separately for easy detachment.

First embodiment of the driving mechanism 4:

the driving mechanism 4 is a trigger 41, the trigger 41 is arranged on the inner side of the holding handle 2, the inner wall of the holding handle 2 is provided with a trigger sliding groove 23, the trigger sliding groove 23 is arranged in parallel with the sliding strip 3, the sliding strip 3 is fixedly connected with the trigger 41 through a buckle, the trigger 41 is manually pressed down, the trigger 41 moves horizontally backwards along the trigger sliding groove 23, the sliding strip 3 is driven to retreat, the window 13 can be opened, at the moment, the constant force spring 22 is tensioned, and the sliding strip 3 moves forwards under the action of the constant force spring 22 to close the window 13 after the trigger 41 is loosened.

Drive mechanism 4 embodiment two:

as shown in fig. 3, the driving mechanism is a push handle 42, the push handle 42 is disposed at the rear of the holding handle 2, the inner wall of the holding handle 2 is provided with a gear fixing hole 24, a gear 43 is rotatably connected in the gear fixing hole 24 of the inner wall of the holding handle 2, the tail end of the sliding bar 3 is provided with a first rack 32, the inner surface of the push handle 42 is provided with a second rack 421, the first rack 32 and the second rack 421 are respectively meshed with the upper surface and the lower surface of the gear 43, when a doctor holds the holding handle 2 and the push handle 42, the push handle 42 is pushed inwards, and the sliding bar 3 moves backwards under the action of the gear 43, so that the window 13 is opened. At this time, the constant force spring 22 is tensioned, and the sliding bar 3 moves forward to close the window 13 under the action of the constant force spring 22 after releasing the push handle.

The front end of the window 13 of the expander body 1 is fixedly connected with an electrode I51, the front end of the sliding bar 3 is fixedly connected with an electrode II 52, one of the electrode I51 and the electrode II 52 is connected with the positive electrode of a power supply, and the other electrode is connected with the negative electrode of the power supply, so that positive and negative electrodes are formed. The middle of the sliding bar 3 is provided with a wire slot 33, the bottom of the holding handle 2 of the electrode II 52 penetrates into the wire slot 33 to be connected with the sliding bar 3, the wire of the electrode I51 penetrates into the inner wire slot of the expander body 1 through the bottom of the holding handle 2 to be connected with the electrode I51, the sliding bar 3 is kept at the topmost end in a normal state, the electrode I51 is contacted with the electrode II 52, and the window 13 is closed.

The tail of the sliding bar 3 is provided with an indication mark 34, the indication mark 34 is a protruding block protruding upwards on the sliding bar 3, a cover plate 25 is arranged above the holding handle 2, a sliding groove 251 is arranged on the cover plate 25, and the indication mark 34 slides in the sliding groove 251 along with the front-back movement of the sliding bar 3 to indicate the movement position of the current sliding bar 3.

The front end of the cover plate 25, the entrance position of the opening 12 is fixedly connected with an illuminating lamp 7, a buzzer element 8 and a circuit board 9 are arranged in the holding handle 2, the illuminating lamp 7, the buzzer element 8 and the circuit board 9 are electrically connected, the lower end of the electrode I51 is fixedly connected with a thermocouple 6, and the thermocouple 6 is connected with the circuit board 9 through a wire. The thermocouple 6 is used to detect the tissue temperature between the electrodes. The circuit board 9 is connected with an external power supply through a cable, and when the power supply is on, the illuminating lamp 7 is lighted with white light and always illuminates the inside of the opening. When the thermocouple 6 detects that the tissue temperature between the electrodes is more than or equal to T, the T is generally 55 ℃, the circuit board 9 controls the illuminating lamp 7 to change into flashing red light, and meanwhile controls the buzzer element 8 to give an alarm.

The application method of the tissue clamping device comprises the following steps:

step 1: the power supply of the circuit board 9 is turned on, the holding handle 2 is held, and the dilator body 1 is inserted into the focus part of the human body.

Step 2: the driving mechanism 4 is used for driving the sliding bar 3 to move backwards, and the window 13 below the expander body 1 is opened, so that tissues needing to be clamped fall into the window 13; the tissue can be more clearly observed through the illuminating lamp 7, the flashlight is not needed to be additionally held, and the flashlight can be operated by one hand, so that the operation stability is provided.

Step 3: the driving mechanism 4 is released, the sliding bar 3 moves forwards under the action of the constant force spring 22 to clamp the tissue falling into the window 13, the force for clamping the tissue is constant due to the constant acting force of the constant force spring 22, the clamping is more stable, the manual continuous force clamping is not needed, and a doctor can determine the thickness of the clamped tissue by observing the indication mark 34 on the cover plate 25.

Step 4: after the thickness of the clamped tissue is determined to be proper, the current is emitted to the first electrode 51 and the second electrode 52 through the firing host switch, and the tissue is heated, so that the protein is denatured and coagulated, and the blood vessel is closed.

Step 5: the thermocouple 6 detects the tissue temperature between the electrodes in real time, and when the tissue temperature is more than or equal to T, the illuminating lamp 7 turns into flashing red light, and an alarm is sent out through the buzzer element 8 to stop heating.

It will be understood that the invention has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a tissue clamping device, includes expander body (1) and grips handle (2), expander body (1) front end below has fenestration (13), and the tissue falls into expander body (1) by fenestration (13), expander body (1) inside has draw runner (3) from fenestration (13) to the part of gripping handle (2), characterized in that, have constant force spring (22) in gripping handle (2), draw runner (3) and constant force spring (22) fixed connection, draw runner (3) remain forward constant force all the time under the effect of constant force spring (22) so that keep closing fenestration (13) or keep holding the tissue of holding in fenestration (13), have actuating mechanism (4) on gripping handle (2), actuating mechanism (4) are used for driving draw runner (3) backward motion.

2. The tissue clamping device according to claim 1, wherein a spring fixing column (21) is fixedly connected to the inner wall of the holding handle (2), a hook (31) is arranged at the tail end of the sliding bar (3), one end of the constant force spring (22) is fixedly connected with the spring fixing column (21), and the other end of the constant force spring is hung on the hook (31) at the tail end of the sliding bar (3) and fixedly connected with the sliding bar (3).

3. The tissue clamping device according to claim 2, wherein the driving mechanism (4) is a trigger (41), the trigger (41) is arranged on the inner side of the holding handle (2), the inner wall of the holding handle (2) is provided with a trigger sliding groove (23), the trigger sliding groove (23) is arranged in parallel with the sliding bar (3), the sliding bar (3) is fixedly connected with the trigger (41) through a buckle, the trigger (41) is manually pressed down, the trigger (41) moves horizontally backwards along the trigger sliding groove (23) to drive the sliding bar (3) to retract to open the opening window (13), the constant force spring (22) is tensioned at the moment, and after the trigger (41) is released, the sliding bar (3) moves forwards to close the opening window (13) under the action of the constant force spring (22).

4. The tissue clamping device according to claim 2, wherein the driving mechanism (4) is a push handle (42), the push handle (42) is arranged behind the holding handle (2), a gear fixing hole (24) is formed in the inner wall of the holding handle (2), the gear (43) is rotatably connected in the gear fixing hole (24) in the inner wall of the holding handle (2), a rack I (32) is arranged at the tail end of the sliding bar (3), a rack II (421) is arranged on the inner surface of the push handle (42), the rack I (32) and the rack II (421) are respectively meshed with the upper surface and the lower surface of the gear (43), when a doctor holds the holding handle (2) and the push handle (42), the push handle (42) is pushed inwards by a doctor, the sliding bar (3) moves backwards under the action of the gear (43) to open a window (13), at the moment, the constant force spring (22) is tensioned, and the sliding bar (3) moves forwards under the action of the constant force spring (22) to close the window (13).

5. The tissue clamping device according to claim 1, wherein the expander body (1) is in a circular ring shape with a horn-shaped opening (12) at one end, the front end of the expander body (1) is a circular arc-shaped closed end (11), the opening (12) gradually expands from the front end to the rear end, and the lower side of the opening (12) extends backwards to be connected with the holding handle (2).

6. The tissue clamping device according to claim 1, wherein fixing grooves (14) are formed in two sides of the inner wall of the expander body (1), limiting bar blocks (15) are inserted into the fixing grooves (14), and the limiting bar blocks (15) are fixed on the upper surface of the sliding bar (3) in a limiting mode, so that the sliding bar (3) keeps linear motion under the limitation of the limiting bar blocks (15) and does not generate axial deviation.

7. The tissue clamping device according to claim 1, wherein an electrode one (51) is fixedly connected to the front end of the opening window (13) of the expander body (1), an electrode two (52) is fixedly connected to the front end of the sliding bar (3), one of the electrode one (51) and the electrode two (52) is connected with a positive electrode and a negative electrode of a power supply, a wire groove (33) is formed in the middle of the sliding bar (3), the bottom of the holding handle (2) of the electrode two (52) penetrates through the wire groove (33) to be connected with the sliding bar (3), a wire of the electrode one (51) penetrates into the interior of the expander body (1) through the bottom of the holding handle (2) to be connected with the electrode one (51), the sliding bar (3) is kept at the topmost end in a normal state, the electrode one (51) is contacted with the electrode two (52), and the opening window (13) is closed.

8. The tissue clamping device according to claim 7, wherein the tail of the sliding bar (3) is provided with an indication mark (34), the indication mark (34) is a protruding block protruding upwards on the sliding bar (3), a cover plate (25) is arranged above the holding handle (2), the cover plate (25) is provided with a sliding groove (251), and the indication mark (34) slides in the sliding groove (251) along with the front-back movement of the sliding bar (3) to indicate the movement position of the current sliding bar (3).

9. The tissue clamping device according to claim 8, wherein the front end of the cover plate (25) is fixedly connected with an illuminating lamp (7) at the inlet position of the opening (12), a buzzer element (8) and a circuit board (9) are arranged in the holding handle (2), the illuminating lamp (7), the buzzer element (8) and the circuit board (9) are electrically connected, a thermocouple (6) is fixedly connected with the lower end of the electrode I (51), the thermocouple (6) is connected with the circuit board (9) through a wire, the circuit board (9) is connected with an external power supply through a cable, when the power supply is on, the illuminating lamp (7) always illuminates the inside the opening (12), and when the temperature of tissue between the electrodes detected by the thermocouple (6) is more than or equal to T, the circuit board (9) controls the illuminating lamp (7) to be changed into flashing red light, and simultaneously controls the buzzer element (8) to give an alarm.