A special clamp for heart valve biological tissue

Abstract

The application relates to the technical field of medical devices, in particular to a special clamp for heart valve biological tissues, which comprises a precursor part, an opening and closing part, a clamping part, a control part and a power end; the precursor part is arranged at the front end of the special clamp for heart valve biological tissues, and is responsible for entering the heart valve; the opening and closing part is arranged on the two sides of the precursor part; after the precursor part enters the designated position of the heart valve, the opening and closing part is opened and closed to cooperate with the clamping part to clamp the valve biological tissue; the control part is arranged above the precursor part and is responsible for controlling the opening and closing control of the opening and closing part and the clamping part; the power end is arranged in the control part and is responsible for driving the special clamp for heart valve biological tissues to move forward and rotate to drive the control part to control the opening and closing of the clamping part.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, and particularly relates to a special clamp for heart valve biological tissue. BACKGROUND

[0002] Heart valve surgery is mainly used to treat various diseases and conditions related to abnormal function of heart valves. The following are some common conditions that require heart valve surgery: Aortic valve stenosis: the aortic valve becomes narrowed, limiting blood flow from the left ventricle to the aorta and the rest of the body. Surgery can replace or repair the narrowed aortic valve. Aortic valve insufficiency: the aortic valve cannot close completely, causing blood to flow back into the left ventricle. Surgery can repair or replace the damaged valve. Mitral valve stenosis: the mitral valve is narrowed, limiting blood flow from the left atrium to the left ventricle. Surgery can repair or replace the mitral valve. Mitral valve insufficiency: the mitral valve cannot close completely, causing blood to flow back into the left atrium. Surgery can repair or replace the mitral valve. Tricuspid valve stenosis: the tricuspid valve is narrowed, limiting blood flow from the right atrium to the right ventricle. Surgery can repair or replace the tricuspid valve. Tricuspid valve insufficiency: the tricuspid valve cannot close completely, causing blood to flow back into the right atrium. Surgery can repair or replace the tricuspid valve. Pulmonary valve stenosis: the pulmonary valve is narrowed, limiting blood flow from the right ventricle to the pulmonary artery. Surgery can repair or replace it. Pulmonary valve insufficiency: the pulmonary valve cannot close completely, causing blood to flow back into the right ventricle. Surgery can repair or replace the pulmonary valve. Infective endocarditis: inflammation of the heart valves caused by infection, which may require surgery to remove the infection and repair or replace the damaged valve. Congenital heart disease: certain congenital heart diseases cause abnormal function of the valve, which may require surgery to repair or replace the valve.

[0003] The heart valve biological tissue special clamp is a medical device used in heart surgery, mainly used for processing and fixing the biological tissue of heart valve. Its main uses include the following aspects: during heart valve repair or replacement surgery, the special clamp can help fix the artificial valve or the repaired natural valve, ensuring its stable position in the heart. During the operation, the biological tissue around the heart valve needs to be processed, and the special clamp can help the surgeon better operate these tissues, reducing damage and bleeding. In complex heart surgery, the special clamp can provide a better view and operating space, allowing the surgeon to perform suturing, repairing and other operations more accurately, improving the success rate of the operation. Using the special clamp can reduce direct contact and operation of the heart tissue, reduce the trauma and complications of the operation on the heart. By using the special clamp, some complex operation steps can be simplified, the operation efficiency can be improved, the operation time can be shortened, and the risk of patients during the operation can be reduced. In general, the heart valve biological tissue special clamp is an important auxiliary tool that can help heart surgeons more accurately and safely complete heart valve-related operations, improve the operation effect and prognosis of patients.

[0004] For example, the Chinese authorized patent "Heart valve clamp" with application number CN202010827970.4, comprising: including a mounting seat and three fixing seats, the mounting seat includes a through hole, the cross section of the mounting seat is circular, three openings are arranged on the side wall of the mounting seat and communicated with the through hole, the three openings are uniformly distributed along the circumference of the mounting seat, and the mounting seat is provided with a clamping groove at the opening; three fixing seats are installed in the three openings one by one, the fixing seat includes a fixed block and a clamping block, the fixed block is arc-shaped, and the diameter corresponding to the fixed block is equal to the diameter corresponding to the mounting seat so that the inner wall of the fixed block fits the inner wall of the mounting seat, the first end of the clamping block is slidably connected with the fixed block, the clamping block slides relative to the fixed block along the radial direction of the mounting seat, the second end of the clamping block is clamped in the clamping groove, and when the inner side of the clamping block is close to the fixed block, the clamping block can leave the clamping groove. The heart valve clamp disclosed in the application has simple structure, low cost, can realize rapid installation and disassembly of the heart valve, and can be repeatedly used.

[0005] Although the above-mentioned prior art has certain progressiveness, the clamping rate is slow, and the clamping depends on the elastic element, which can cause the instability to increase during long-term use.

[0006] In view of the above situation, in order to overcome the above technical problems, the present application designs a heart valve biological tissue special clamp, which solves the above technical problems. SUMMARY

[0007] The technical purpose to be achieved by the present application is to design a heart valve biological tissue special clamp, which improves the clamping efficiency and reduces the instability during use.

[0008] To achieve the above technical purposes, the present application provides the following technical solutions:

[0009] A heart valve biological tissue special clamp, comprising a precursor, an opening and closing part, a clamping part, a control part and a power end; the precursor is provided as the front end part of the heart valve biological tissue special clamp, the precursor is responsible for entering the heart valve, the opening and closing part is provided on both sides of the precursor, the opening and closing part is opened and closed after the precursor enters the designated position of the heart valve, so as to cooperate with the clamping part to clamp the valve biological tissue, the control part is provided above the precursor, the control part is responsible for controlling the opening and closing control of the opening and closing part and the clamping part, the power end is provided inside the control part, and the power end is responsible for driving the heart valve biological tissue special clamp to move forward and rotate to drive the control part to control the opening and closing of the clamping part.

[0010] Preferably, the precursor comprises a driving probe, a mounting groove, a rotating assembly, a brake pawl, a magnetic block and a rotating shaft;

[0011] The driving probe is provided as the top end of the precursor, responsible for detecting whether the precursor reaches the designated position of the heart valve;

[0012] The mounting groove is opened in the bottom surface of the driving probe, and the mounting groove is used for mounting the rotating shaft;

[0013] The rotating assembly is provided inside the mounting groove, and the rotating assembly drives the rotating shaft to rotate by the kinetic energy generated by the high-pressure fluid release;

[0014] The brake pawl is installed on the side surface of the mounting groove, and the brake pawl enables the rotating shaft to rotate in one direction only;

[0015] The magnetic block is provided on the ground of the precursor, and the magnetic block realizes detachable installation of the precursor and the power end;

[0016] The rotating shaft is installed inside the mounting groove, and the rotating shaft is used for driving the opening and closing part to perform opening and closing action.

[0017] Preferably, the rotating assembly comprises a rotating groove, a through flow channel, a high-pressure cavity, a control valve and a balance cavity;

[0018] The rotating groove is opened on both sides of the mounting groove, and the rotating groove is used for sealing installation in cooperation with the rotating shaft;

[0019] The through flow channel is opened inside the rotating groove, and the through flow channel is used for passing the fluid in the high-pressure cavity, so as to convert the pressure thereof into the kinetic energy of the rotating shaft;

[0020] The high-pressure cavity is opened inside the rotating groove, and the high-pressure cavity is provided with high-pressure fluid inside.

[0021] The control valve is arranged between the flow channel and the high-pressure cavity, and is used to control the opening and closing of the high-pressure cavity.

[0022] The balance cavity is arranged at the other end of the rotating groove, and is used to accommodate the high-pressure fluid in the high-pressure cavity.

[0023] Preferably, the side surface of the rotating shaft is provided with a connecting shaft, and the surface of the connecting shaft is provided with a driving fan blade, which is used to drive the rotating shaft to rotate under the action of the pressure difference.

[0024] Preferably, the opening and closing part includes a rotating sleeve, a one-way ratchet, a clamping block, a matching groove and an inner side surface pattern.

[0025] The rotating sleeve is arranged on the rotating shaft, and the rotating sleeve and the rotating shaft move at the same speed.

[0026] The one-way ratchet is arranged on the side surface of the rotating sleeve, and the one-way ratchet allows the rotating sleeve to rotate outward only in one direction.

[0027] The clamping block is arranged on the surface of the rotating sleeve.

[0028] The matching groove is arranged on the inner side surface of the clamping block.

[0029] The inner side surface pattern is arranged on the matching groove.

[0030] Preferably, the matching groove is arranged in an arc shape, and the inner side surface pattern arranged on the inner surface of the matching groove is arranged in a wave shape.

[0031] Preferably, the clamping part includes a fixed ring, an extension block and an outer side surface pattern.

[0032] The fixed ring is arranged in the middle of the control part.

[0033] The extension block is arranged on both sides of the fixed ring, and the material of the extension block is arranged as an elastic material.

[0034] The outer side surface pattern is arranged on the outer side surface of the extension block, and the outer side surface pattern and the inner side surface pattern are arranged alternately.

[0035] Preferably, the control part includes a mounting seat, a clamping groove, an opening and closing groove, a matching through hole and a control assembly.

[0036] The mounting seat is arranged on the upper surface of the front drive part.

[0037] The clamping groove is arranged at the position of the middle circle line of the mounting seat, and is used to mount the clamping part.

[0038] The opening and closing groove is arranged on both sides of the mounting seat.

[0039] The matching through hole is arranged in the middle of the mounting column;

[0040] The control assembly is arranged in the interior of the mounting seat, and the control assembly is used for controlling the opening and closing angle of the clamping part.

[0041] Preferably, the control assembly comprises a rotating block, a clamping block, a traction groove and a traction rope;

[0042] The rotating block is arranged in the interior of the mounting seat, and the rotating block is arranged in a circular ring shape;

[0043] The clamping block is arranged on the inner surface of the rotating block, and the clamping block is arranged in a circumferential array;

[0044] The traction groove is arranged on the side surface of the rotating block;

[0045] The traction rope is arranged in the interior of the traction groove, and two ends of the traction rope are fixed on the inner side surface of the clamping part.

[0046] Preferably, the power end comprises an electromagnetic block and a clamping groove;

[0047] The electromagnetic block is arranged on the top end of the power end, and the electromagnetic block can realize magnetic force control through on-off electricity;

[0048] The clamping groove is arranged on the outer surface of the top end portion of the power end.

[0049] The beneficial effects of the present application are as follows:

[0050] 1. The present application can realize rapid one-way clamping of the heart valve through the arrangement of the opening and closing part and the clamping part, which helps to shorten the operation time, so that the surgeon can complete the fixation and operation of the valve more quickly. The improvement of this efficiency not only accelerates the operation process, but also reduces the waiting time in the operating room, thereby improving the efficiency of the entire medical process. The rapid clamping technology can reduce the mechanical operation time of the heart valve biological tissue, and reduce the risk of long-time exposure of the tissue to clamping force. This way of reducing contact time helps to reduce tissue damage and stress, and protects the integrity and function of the valve. Rapid clamping can enable the doctor to complete the clamping operation in the shortest time, reducing the instability factors that may be caused by long operation time. This can improve the accuracy of clamping action and ensure the accurate fixation of heart valve biological tissue. In heart surgery, rapid clamping can help the doctor quickly complete the clamping and repair of critical parts, reduce the risk and complications in the surgical process. Especially in emergency situations, the ability to react quickly can greatly improve the safety and success rate of the operation.

[0051] 2.The application can flexibly adjust the clamping action by setting the control part and the power end, reduce the trial clamping times, thereby reducing the operation time, shortening the operation time is not only beneficial to the doctor, but also reduces the patient's discomfort during the operation. Fast clamping can effectively shorten the anesthesia time and postoperative recovery time, thereby improving the overall comfort and recovery speed of the patient. When performing complex valve repair or replacement surgery, it can quickly and accurately clamp biological tissues to help deal with various complex situations, so that doctors can flexibly respond to various challenges, thereby improving the controllability and success rate of the operation. BRIEF DESCRIPTION OF DRAWINGS

[0052] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the specific embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application. Those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0053] The above and other aspects of the present application will now be described, by way of example only, with reference to the accompanying drawings in which:

[0054] Figure 1 is a schematic diagram of the overall structure of the present application;

[0055] Figure 2 is a schematic diagram of the structure of the precursor of the present application;

[0056] Figure 3 is an enlarged schematic diagram of the rotating assembly of the present application;

[0057] Figure 4 is a partial sectional view of the precursor of the present application;

[0058] Figure 5 is a schematic diagram of the structure of the rotating shaft of the present application;

[0059] Figure 6 is a schematic diagram of the structure of the opening and closing part of the present application;

[0060] Figure 7 is a schematic diagram of the structure of the clamping part of the present application;

[0061] Figure 8 is a schematic diagram of the installation position of the control part of the present application;

[0062] Figure 9 is a schematic diagram of the structure of the control part of the present application;

[0063] Figure 10 is a schematic diagram of the structure of the control assembly of the present application;

[0064] Figure 11 is a schematic diagram of the structure of the power end of the present application.

[0065] Figure: 1. Precursor; 11. Driving probe; 12. Mounting slot; 13. Rotating assembly; 131. Rotating slot; 132. Passageway; 133. High-pressure chamber; 134. Control valve; 135. Balancing chamber; 14. Braking pawl; 15. Magnetic block; 16. Rotating shaft; 161. Connecting shaft; 162. Driving blade; 2. Opening and closing unit; 21. Rotating sleeve; 22. One-way ratchet; 23. Clamping block ; 24. Matching groove; 25. Inner side texture; 3. Clamping part; 31. Fixed ring; 32. Extension block; 33. Outer side texture; 4. Control part; 41. Mounting seat; 42. Snap-in groove; 43. Opening and closing groove; 44. Matching through hole; 45. Control component; 451. Rotating block; 452. Snap-in block; 453. Traction groove; 454. Traction rope; 5. Power end; 51. Electromagnetic block; 52. Snap-in groove. DETAILED DESCRIPTION

[0066] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0067] like Figures 1-11 As shown, a special clamp for heart valve biological tissue includes a precursor 1, an opening and closing part 2, a clamping part 3, a control part 4 and a power end 5; the precursor 1 is set as the front end part of the special clamp for heart valve biological tissue, and the precursor 1 is responsible for entering the heart valve, and the opening and closing part 2 is set on both sides of the precursor 1. After the precursor 1 enters the specified position of the heart valve, the opening and closing part 2 opens and closes to cooperate with the clamping part 3 to clamp the valve biological tissue, and the control part 4 is set above the precursor 1. The control part 4 is responsible for controlling the opening and closing control of the opening and closing part 2 and the clamping part 3. The power end 5 is set inside the control part 4. The power end 5 is responsible for driving the special clamp for heart valve biological tissue to move forward, and rotates to drive the control part 4 to realize the control of the opening and closing of the clamping part 3.

[0068] The protruding portion 1, located at the front end of the clip, is ingeniously designed to facilitate smooth entry into the heart valve. Once inside, the protruding portion 1 is positioned at the designated location on the heart valve, providing a stable foundation for subsequent clamping. The design of the protruding portion 1 requires both smooth entry into the heart valve and minimal trauma to surrounding cardiac tissue during the procedure.

[0069] The opening and closing part 2 is an important component arranged on both sides of the front driving part 1. Its main function is to effectively clamp the biological tissue of the heart valve through the opening and closing action after the front driving part 1 reaches the designated position of the heart valve, cooperating with the clamping part 3. The action of the opening and closing part 2 is accurate and flexible, and can be finely adjusted according to actual needs to ensure the stability and safety of the clamping operation. The clamping part 3 is the component that actually contacts the biological tissue of the heart valve and applies clamping force, and its design needs to fully consider the protection of the biological tissue to avoid tissue damage caused by excessive clamping.

[0070] The control part 4 is arranged above the front driving part 1 and is the center of the whole clip operation. The control part 4 accurately controls the opening and closing action of the opening and closing part 2 and the clamping part 3 through complex mechanical structure and electronic control system. The doctor issues instructions through the control part 4 during the operation to control the actions of the clip and realize accurate operation on the biological tissue of the heart valve. The design of the control part 4 needs to consider the convenience and accuracy of the operation to ensure that the doctor can quickly and accurately complete the operation in a complex surgical environment.

[0071] The power end 5 is the key part of providing the power required for the movement of the clip and is located inside the control part 4. The power end 5 provides the pushing force required for the forward movement of the front driving part 1 through a micro motor or other power device, and can also rotate to drive the control part 4, realizing the control of the opening and closing action of the clamping part 3. The design of the power end 5 needs to ensure sufficient power output and the stability and reliability of operation to adapt to the long-time operation requirement.

[0072] As shown in Figure 2 , the front driving part 1 includes a driving probe 11, a mounting groove 12, a rotating assembly 13, a brake pawl 14, a magnetic attraction block 15 and a rotating shaft 16. The front driving part 1 is the core part of the special clip for the biological tissue of the heart valve, and its various components work together to ensure the accuracy and reliability of the operation.

[0073] The driving probe 11 is located at the top end of the front driving part 1 and plays the role of a detector. Its main task is to detect whether the front driving part 1 reaches the designated position of the heart valve. The driving probe 11 adopts high-precision sensing technology and can feedback the position and state of the front driving part 1 in real time, helping the doctor to make timely adjustments during the operation to ensure the accuracy and safety of the operation.

[0074] The mounting groove 12 is arranged on the bottom surface of the driving probe 11 and is used for mounting the rotating shaft 16. The design of the mounting groove 12 needs to ensure the stable mounting of the rotating shaft 16 and facilitate the flexible rotation of the rotating shaft 16, so as to ensure the smooth progress of the subsequent work. The structure of the mounting groove 12 is precisely calculated to provide sufficient space and freedom for the efficient operation of the rotating shaft 16 on the premise of ensuring the strength.

[0075] The rotating assembly 13 is arranged inside the installation groove 12, which is the power core of the entire front drive part 1. The rotating assembly 13 drives the rotating shaft 16 to rotate by the kinetic energy generated by the high-pressure fluid. Its design principle is similar to a turbine, which realizes efficient and stable rotation output through fluid power. The selection and flow control of high-pressure fluid are strictly optimized to ensure that the rotating assembly 13 can operate stably in various surgical environments.

[0076] The brake pawl 14 is installed on the side of the installation groove 12, and its main function is to ensure that the rotating shaft 16 can only rotate in one direction. This one-way braking mechanism can prevent the rotating shaft 16 from sliding in the opposite direction during operation, ensuring consistent and accurate operation of the opening and closing part 2. The brake pawl 14 is made of high-strength material, has excellent wear resistance and reliability, and can be used for a long time without failure.

[0077] The magnetic block 15 is arranged on the bottom surface of the front drive part 1, which functions to detachably install the front drive part 1 and the power end 5. The magnetic block 15 is made of high-performance magnetic material, which can provide strong adsorption force and is easy to separate, facilitating the installation and removal of equipment before and after surgery. Such design not only improves the convenience of using the equipment, but also facilitates the cleaning and maintenance of the equipment.

[0078] The rotating shaft 16 is installed inside the installation groove 12, and its main task is to drive the opening and closing part 2 to open and close. The rotating shaft 16 realizes precise rotary motion by the power provided by the rotating assembly 13, and then drives the opening and closing part 2 to complete the clamping operation of the valve biological tissue. The design of the rotating shaft 16 considers its strength and precision to ensure stable operation under high load and high precision requirements.

[0079] As shown in Figures 3-4 The rotating assembly 13 includes a rotating groove 131, a through flow channel 132, a high-pressure cavity 133, a control valve 134, and a balance cavity 135, which constitutes the core power transmission system inside the front drive part 1.

[0080] The rotating groove 131 is arranged on both sides of the installation groove 12, and the design purpose is to provide a stable and sealed installation environment for the rotating shaft 16. The sealing performance of the rotating groove 131 is crucial, because it not only ensures the free rotation of the rotating shaft 16 under high pressure conditions, but also prevents high-pressure fluid leakage, ensuring the efficient operation and safety of the entire system.

[0081] The through flow channel 132 is arranged inside the rotating groove 131, and its main function is to guide the fluid in the high-pressure cavity 133 to the rotating shaft 16, and then convert the pressure of the fluid into the kinetic energy of the rotating shaft 16. The design of the through flow channel 132 must be precise to ensure that the fluid can pass through the best path and speed, thereby maximizing the kinetic energy conversion efficiency. The internal structure of the flow channel is strictly optimized to reduce flow resistance and energy loss.

[0082] The high-pressure chamber 133 is located inside the rotating groove 131 and serves as the power source for the entire rotating assembly 13. It is filled with high-pressure fluid, and by controlling its flow, the movement of the rotating shaft 16 can be precisely controlled. The material and structural design of the high-pressure chamber 133 must be able to withstand the impact of high-pressure fluid and long-term wear and tear, ensuring its stable operation under various surgical conditions.

[0083] The control valve 134 is installed between the flow channel 132 and the high-pressure chamber 133, and its function is to control the opening and closing of the high-pressure chamber 133, thereby adjusting the flow of high-pressure fluid. The precise control ability of the control valve 134 is crucial, as it needs to be able to quickly respond to the doctor's operating instructions and accurately adjust the flow and pressure of the fluid. The design and manufacture of the control valve 134 use advanced control technology and high-performance materials to ensure its efficient and reliable performance.

[0084] The balance chamber 135 is installed at the other end of the rotating groove 131, and its function is to accommodate the high-pressure fluid inside the high-pressure chamber 133, thereby maintaining the pressure balance in the system. The presence of the balance chamber 135 can effectively reduce the impact of pressure fluctuations in the high-pressure chamber 133 on the operation of the rotating shaft 16, ensuring the smooth operation of the entire rotating assembly 13. The design of the balance chamber 135 needs to consider its volume and pressure bearing capacity to ensure that it can effectively balance the pressure of the high-pressure fluid.

[0085] Through the coordinated work of these precise designs and functional components, the rotating assembly 13 can efficiently convert the pressure of the high-pressure fluid into the kinetic energy of the rotating shaft 16, thereby driving the opening and closing part 2 to achieve precise clamping actions. The efficient and stable operation of the rotating assembly 13 not only improves the accuracy and safety of surgical operations, but also reduces the operation time and the postoperative recovery time of patients. Every detail of refinement is to ensure the excellent performance of the heart valve biological tissue special clamp in the operation, providing better treatment effect and prognosis guarantee for heart disease patients.

[0086] As shown in Figure 5 The side of the rotating shaft 16 is installed with a connecting shaft 161, and the surface of the connecting shaft 161 is installed with a driving fan blade 162. The design of the driving fan blade 162 aims to use the pressure difference to drive the rotation of the rotating shaft 16. Specifically, when the high-pressure fluid passes through the rotating assembly 13, the pressure difference will generate power on the driving fan blade 162, which pushes the fan blade to rotate, thereby driving the connecting shaft 161 and the rotating shaft 16 to rotate together. Through this design, the rotating shaft 16 can efficiently convert the kinetic energy of the fluid into mechanical energy, achieving precise rotation operation. This mechanism not only improves the operation efficiency of the equipment, but also ensures stable and precise clamping and operation of the heart valve during the operation.

[0087] The opening and closing part 2 includes a rotating sleeve 21, a one-way ratchet 22, a clamping block 23, a matching groove 24, and an inner side texture 25. Each component is carefully designed to ensure the accuracy and reliability of the overall structure, thereby achieving efficient operation of the heart valve biological tissue special clamp.

[0088] As shown in Figure 6 The rotating sleeve 21 is installed on the rotating shaft 16, ensuring that it moves at the same speed as the rotating shaft 16. This uniform motion allows the rotating sleeve 21 to accurately transmit the power of the rotating shaft 16, achieving coordinated operation. The design of the rotating sleeve 21 needs to consider its close fit with the rotating shaft 16, ensuring stable operation in a high-pressure environment.

[0089] The one-way ratchet 22 is installed on the side of the rotating sleeve 21, and its main function is to ensure that the rotating sleeve 21 can only rotate outward in one direction. This one-way rotation mechanism can prevent the rotating sleeve 21 from moving in the opposite direction during operation, ensuring the consistency and stability of the clamping action. The one-way ratchet 22 is made of high-strength material to ensure its durability and reliability during long-term use.

[0090] The clamping block 23 is installed on the surface of the rotating sleeve 21 and is responsible for the actual clamping operation. The design of the clamping block 23 needs to fully consider the protection of biological tissues to avoid damage to the tissues during clamping. The clamping block 23 needs to have sufficient clamping force while maintaining operational flexibility.

[0091] The matching groove 24 is opened on the inner side of the clamping block 23, serving as a fixing and guiding function. The precise design of the matching groove 24 ensures that the clamping block 23 can accurately clamp and release under the drive of the rotating sleeve 21. The size and shape of the matching groove 24 are optimized to adapt to different operation needs.

[0092] The inner side texture 25 is set on the matching groove 24, increasing the friction between the clamping block 23 and the clamped object, thereby enhancing the clamping effect. These textures are precisely designed and processed to provide sufficient friction without damaging biological tissues, ensuring the stability of clamping.

[0093] The matching groove 24 is set as an arc shape, and the inner side texture 25 set on the inner surface of the matching groove 24 is set as a wave shape. Such design brings many benefits, improving the functionality and use effect of the heart valve biological tissue special clamp.

[0094] The arc-shaped fitting groove 24 is designed to better adapt to the shape of the heart valve. The biological tissue of the heart valve usually has a certain arc and curve, and the design of the arc-shaped groove can closely fit it, increasing the contact area between the clamping block 23 and the valve tissue. This fit can provide more uniform clamping force, reduce local pressure, and avoid unnecessary damage to the tissue, thereby protecting the integrity and function of the heart valve.

[0095] The inner side surface pattern 25 is set as a wave shape, which can increase the friction between the clamping block 23 and the clamped object. The wave-shaped pattern provides more contact points and gripping force, making the clamping effect more stable. The structure of the wave-shaped pattern provides friction while also having a certain elasticity and buffering effect, which can better distribute pressure during clamping, further reducing damage to the tissue.

[0096] The wave-shaped inner side surface pattern 25 also has a flow guiding effect. Under the action of high-pressure fluid, the wave-shaped pattern can guide the flow of fluid, reducing turbulence and resistance of the fluid in the fitting groove 24. This flow guiding effect can improve the utilization efficiency of high-pressure fluid, making the operation of the rotating assembly 13 more smooth and efficient.

[0097] The clamping part 3 includes a fixed ring 31, an extension block 32, and an outer side surface pattern 33, which work together to achieve precise clamping and stable fixation of the heart valve biological tissue.

[0098] As shown in Figure 7 , the fixed ring 31 is installed in the middle part of the control part 4, serving as the core component of the clamping part 3, responsible for maintaining and supporting the entire clamping system. The design of the fixed ring 31 ensures the structural stability of the clamping part 3 and the effective clamping of the biological tissue, preventing accidental displacement during surgery.

[0099] The extension block 32 is arranged on both sides of the fixed ring 31, and the material is selected as an elastic material, which allows the extension block 32 to expand and contract appropriately according to the clamping requirements. The use of elastic material provides good adaptability and flexibility, which can match the shape and movement of the heart valve during clamping, ensuring uniform distribution of clamping force and reducing damage to the biological tissue.

[0100] The outer side surface pattern 33 is arranged on the outer side of the extension block 32, and the pattern is arranged alternately with the inner side surface pattern 25. This alternating pattern design can increase the friction between the extension block 32 and the heart valve biological tissue, thereby providing stronger clamping force and stability. At the same time, the alternating pattern structure can effectively guide and distribute the pressure generated during clamping, further protecting the heart valve tissue from excessive compression. This comprehensive design not only improves the clamping effect, but also optimizes the operation comfort and safety during clamping.

[0101] As shown in Figures 8-9 The control part 4 includes a mounting seat 41, a clamping groove 42, an opening and closing groove 43, a matching through hole 44, and a control assembly 45, which work together to ensure the precise control and high efficiency of the clamping part 3.

[0102] The mounting seat 41 is installed on the top of the front driving part 1, providing a stable support platform for the entire control part 4. Its structural design not only ensures the firm connection of the mounting seat 41 with the front driving part 1, but also can withstand various forces generated during the operation of the clamping part 3, ensuring the stability of the control part 4.

[0103] The clamping groove 42 is opened in the middle ring line position of the mounting seat 41, and its main function is to install the clamping part 3. The design of the clamping groove 42 must be accurate so that the clamping part 3 can be firmly clamped therein and can be smoothly disassembled or replaced when needed. This design ensures the stable fixation of the clamping part 3, while facilitating adjustment and maintenance during the operation.

[0104] The opening and closing groove 43 is arranged on both sides of the mounting seat 41, allowing the clamping part 3 to perform opening and closing actions during operation. The design of the opening and closing groove 43 needs to fully consider the movement range and flexibility of the clamping part 3 to ensure that the clamping part 3 can smoothly complete the opening and closing operation without interfering with the surrounding structure.

[0105] The matching through hole 44 is opened in the middle position of the mounting seat 41, used for cooperation with other related components. The design of the matching through hole 44 can provide the necessary space and guidance to ensure that each component can be accurately matched and installed, further improving the operation efficiency of the entire control part 4.

[0106] As shown in Figure 10 The control assembly 45 is arranged inside the mounting seat 41 and is the key component for controlling the opening and closing angle of the clamping part 3. The control assembly 45 adjusts the opening and closing angle of the clamping part 3 through precise control mechanism to achieve precise clamping of the heart valve biological tissue. The design of the control assembly 45 involves high-precision electronic and mechanical control technology, which can quickly respond to operation instructions during the operation to ensure the stability and accuracy of the clamping part 3 under various surgical conditions.

[0107] The control assembly 45 includes a rotating block 451, a clamping block 452, a traction groove 453, and a traction rope 454, which work together to achieve precise control of the opening and closing angle of the clamping part 3.

[0108] The rotating block 451 is installed inside the mounting seat 41 and is shaped as a circular ring. The circular ring design allows the rotating block 451 to uniformly transmit rotational force while providing a stable operation platform. The circular shape of the rotating block 451 allows it to rotate smoothly within the mounting seat 41, effectively controlling the opening and closing action of the clamping part 3.

[0109] The clamping blocks 452 are mounted on the inner surface of the rotating block 451 and arranged in a circular array. This circular array design allows for precise coordination with corresponding components of the clamping portion 3, ensuring stable opening and closing of the clamping portion 3 driven by the rotating block 451. The evenly distributed circumferential array of clamping blocks 452 improves contact stability and uniformity, thereby enhancing the overall clamping effect.

[0110] Traction groove 453 is provided on the side of rotating block 451 to guide and secure traction rope 454. The design of traction groove 453 takes into account the trajectory and tension of traction rope 454, ensuring smooth movement of traction rope 454 within the groove while maintaining stable traction. The shape and position of traction groove 453 are precisely calculated to precisely match the rotational movement of rotating block 451.

[0111] The traction rope 454 is positioned within the traction groove 453, with both ends secured to the inner surface of the clamping portion 3. By moving within the traction groove 453, the traction rope 454 pulls or releases the clamping portion 3, thereby controlling the opening and closing angle of the clamping portion 3. The material selection and securing method of the traction rope 454 ensure that it remains stable under high loads and repeated operation, without wear or breakage. The design with both ends secured to the inner surface of the clamping portion 3 ensures that the traction rope 454 can accurately transmit control signals, thereby effectively controlling the clamping portion 3.

[0112] like Figure 11 As shown, the power end 5 includes two key components: an electromagnetic block 51 and a card slot 52. The electromagnetic block 51 is set at the top of the power end 5 and can adjust the magnetic force by turning the current on and off, thereby achieving magnetic control of the power end 5. This design of the electromagnetic block 51 enables the power end 5 to respond quickly when needed and perform precise operations. The card slot 52 is set on the outer surface of the top part of the power end 5 for reliable mechanical connection with other components. The design of the card slot 52 ensures the stable cooperation between the electromagnetic block 51 and other components, making the operation of the entire system more efficient and stable.

[0113] During operation, the electromagnetic block 51 is energized to achieve a fixed connection between the power end 5 and the front drive unit 1. Driven by an external power device, the power end 5 reaches the middle position of the heart valve through the guide wire. With the help of observation devices such as endoscopes and B-ultrasound, the heart valves on both sides begin to be clamped together:

[0114] When the control valve 134 receives the signal to open, high pressure fluid flows from the high pressure chamber 133 to the balance chamber 135, driving the driving vane 162 in the flow channel 132, thus causing the rotating shaft 16 to drive the opening and closing part 2 to rotate. Under the control of the brake pawl 14 and the one-way ratchet 22, the opening and closing part 2 can only be expanded to the maximum angle. At this time, the clamping part 3 is controlled by the control part 4.

[0115] The clamping part 3 is made of elastic material and should be expanded in normal state. One end of the traction rope 454 is controlled inside the stretching block 32, thus achieving the angle adjustment of the stretching block 32. After being adjusted to the appropriate position, the traction rope 454 is loosened, the stretching block 32 and the clamping block 23 achieve the clamping of the valve, the electromagnetic block 51 is powered off, and the whole power end 5 is withdrawn.

[0116] The description herein is provided to enable any person skilled in the art to practice or use the present disclosure. Various modifications to the present disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other variations without departing from the scope of the present disclosure. Thus, the present disclosure is not intended to be limited to the examples described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A heart valve biological tissue special-purpose clamp, characterized in that, The application relates to a heart valve biological tissue special clamp, which comprises a front driving part (1), an opening and closing part (2), a clamping part (3), a control part (4) and a power end (5), wherein the front driving part (1) is arranged at the front end of the heart valve biological tissue special clamp and is responsible for entering the heart valve; the opening and closing part (2) is arranged on the two sides of the front driving part (1) and is responsible for opening and closing after the front driving part (1) enters the designated position of the heart valve, so as to clamp the valve biological tissue together with the clamping part (3); the control part (4) is arranged above the front driving part (1) and is responsible for controlling the opening and closing of the opening and closing part (2) and the clamping part (3); and the power end (5) is arranged in the control part (4) and is responsible for driving the heart valve biological tissue special clamp to move forward and rotate the control part (4) to control the opening and closing of the clamping part (3). The front driving part (1) comprises a driving probe (11), a mounting groove (12), a rotating assembly (13), a brake pawl (14), a magnetic attraction block (15) and a rotating shaft (16). The driving probe (11) is arranged at the top end of the front driving part (1) and is responsible for detecting whether the front driving part (1) reaches the designated position of the heart valve. The mounting groove (12) is arranged on the bottom surface of the driving probe (11) and is used for mounting the rotating shaft (16). The rotating assembly (13) is arranged in the mounting groove (12) and drives the rotating shaft (16) to rotate through the kinetic energy generated by high-pressure fluid release. The brake pawl (14) is arranged on the side of the mounting groove (12) and enables the rotating shaft (16) to rotate in one direction only. The magnetic attraction block (15) is arranged on the ground of the front driving part (1) and detachably mounts the front driving part (1) and the power end (5). The rotating shaft (16) is arranged in the mounting groove (12) and is used for driving the opening and closing part (2) to open and close. The opening and closing part (2) comprises a rotating sleeve (21), a one-way ratchet wheel (22), a clamping block (23), a matching groove (24) and an inner side surface pattern (25). The rotating sleeve (21) is arranged on the rotating shaft (16) and moves at the same speed as the rotating shaft (16). The one-way ratchet wheel (22) is arranged on the side of the rotating sleeve (21) and enables the rotating sleeve (21) to rotate in one direction only. The clamping block (23) is arranged on the surface of the rotating sleeve (21). The matching groove (24) is arranged on the inner side surface of the clamping block (23). The inner side surface pattern (25) is arranged on the matching groove (24). The clamping part (3) comprises a fixed ring (31), an extension block (32) and an outer side surface pattern (33). The fixed ring (31) is arranged in the middle of the control part (4). The extension block (32) is arranged on the two sides of the fixed ring (31) and is made of elastic material. The outer side surface texture (33) is arranged on the outer side surface of the stretching block (32), and the outer side surface texture (33) and the inner side surface texture (25) are arranged alternately; The control part (4) comprises a mounting seat (41), a clamping groove (42), an opening and closing groove (43), a matching through hole (44) and a control assembly (45); The mounting seat (41) is mounted on the upper surface of the front driving part (1); The clamping groove (42) is arranged on the middle ring line of the mounting seat (41), and the clamping groove (42) is used for mounting the clamping part (3); The opening and closing groove (43) is arranged on both sides of the mounting seat (41); The matching through hole (44) is arranged in the middle of the mounting column; The control assembly (45) is arranged in the interior of the mounting seat (41), and the control assembly (45) is used for controlling the opening and closing angle of the clamping part (3).

2. The special clip for biological tissue of heart valve according to claim 1, characterized in that: The rotating assembly (13) comprises a rotating groove (131), a passing flow channel (132), a high-pressure cavity (133), a control valve (134) and a balance cavity (135); The rotating groove (131) is arranged on both sides of the mounting groove (12), and the rotating groove (131) is used for matching the rotating shaft (16) to realize sealing installation; The passing flow channel (132) is arranged in the interior of the rotating groove (131), and the passing flow channel (132) is used for passing the fluid in the high-pressure cavity (133) to convert the pressure of the fluid into the kinetic energy of the rotating shaft (16); The high-pressure cavity (133) is arranged in the interior of the rotating groove (131), and the high-pressure cavity (133) is internally provided with high-pressure fluid; The control valve (134) is arranged between the passing flow channel (132) and the high-pressure cavity (133), and the control valve (134) is used for controlling the opening and closing of the high-pressure cavity (133); The balance cavity (135) is arranged at the other end of the rotating groove (131), and the balance cavity (135) is used for accommodating the high-pressure fluid in the high-pressure cavity (133).

3. The special clip for biological tissue of heart valve according to claim 2, characterized in that: The side surface of the rotating shaft (16) is provided with a connecting shaft (161), the surface of the connecting shaft (161) is provided with a driving fan blade (162), and the driving fan blade (162) is used for driving the rotating shaft (16) to rotate under the action of the pressure difference.

4. The special clip for biological tissue of heart valve according to claim 3, characterized in that: The matching groove (24) is arranged in an arc shape, and the inner side surface texture (25) arranged on the inner surface of the matching groove (24) is arranged in a wave shape.

5. The special clip for biological tissue of heart valve according to claim 4, characterized in that: The control assembly (45) comprises a rotating block (451), a clamping block (452), a traction groove (453) and a traction rope (454); The rotating block (451) is mounted in the interior of the mounting seat (41), and the rotating block (451) is arranged in a circular ring shape; The clamping block (452) is mounted on the inner surface of the rotating block (451), and the clamping block (452) is arranged in a circumferential array; The traction groove (453) is arranged on the side surface of the rotating block (451); The traction rope (454) is arranged in the interior of the traction groove (453), and both ends of the traction rope (454) are fixed on the inner side surface of the clamping part (3).

6. The special clip for biological tissue of heart valve according to claim 5, characterized in that: The power end (5) comprises an electromagnetic block (51) and a clamping groove (52); The electromagnetic block (51) is arranged at the top end of the power end (5), and the electromagnetic block (51) can realize magnetic force control through on-off electricity. The clamping groove (52) is arranged on the outer surface of the top end portion of the power end (5).

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