A tissue cutting tool

Abstract

The application belongs to the technical field of medical apparatus and instruments, and provides a tissue cutting tool, which comprises a cutting tool shell, a cutting device, a camera device and a clamping device are arranged on the cutting tool shell. The tissue fixing tube is used for fixing the tissue part to be cut. The driving mechanism drives the linkage to realize the movement and rotation of the cutting knife body relative to the tissue part to be cut, so that the cutting operation of the tissue part to be cut is realized. Meanwhile, the camera device is arranged, which facilitates the user to realize visual operation. The clamping device can adjust the position of the camera device, so that the tissue cutting is completed in a stable, accurate and efficient environment.

Description

A tissue cutting tool Technical Field

[0001] This invention belongs to the field of medical device technology, and specifically relates to a tissue cutting tool. Background Technology

[0002] Currently, traditional orthopedic surgical tools are insufficient for minimally invasive, visualized, and precise treatment of nerve entrapment in the palm, plantar fascia release, and gastrocnemius muscle atrophy. Summary of the Invention

[0003] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a tissue cutting tool.

[0004] The technical solution adopted by this invention to solve its technical problem is:

[0005] A tissue cutting tool includes a cutting tool housing, wherein the cutting tool housing is provided with a cutting device, a camera device and a clamping device;

[0006] The cutting device includes a tissue fixation tube, a cutting mechanism, and a driving mechanism. The cutting mechanism includes a cutting blade, a clamping member, and a linkage member. One end of the linkage member is connected to the cutting blade. The tissue fixation tube is fixed to one end of the cutting tool housing by the clamping member. The cutting blade is located inside the tissue fixation tube. The linkage member is located inside the cutting tool housing. The driving mechanism is located inside the cutting tool housing. The driving end of the driving mechanism cooperates with the other end of the linkage member and can drive the linkage member to move linearly and rotate within the cutting tool housing.

[0007] The clamping device is provided with a clamping area and a clamping drive unit, and the clamping drive unit can adjust the size of the clamping area of ​​the clamping device;

[0008] The camera device is installed inside the cutting tool housing via the clamping device, and the camera device passes through the cutting blade and the linkage.

[0009] Preferably, the linkage is a rod structure, and a first channel portion for the camera device to pass through is provided inside the linkage. A first toothed portion, a first guide groove and a second guide groove are provided on the outer wall surface of the linkage. The first guide groove is straight and the second guide groove is arc-shaped. The first guide groove and the second guide groove are connected and arranged in communication, and the two sections of the second guide groove are respectively provided at both ends of the first guide groove.

[0010] The cutting tool housing is provided with a guide post that can cooperate with the first guide groove and the second guide groove.

[0011] Preferably, the driving mechanism includes a driving motor and a driving gear, and the driving end of the driving motor is connected to the driving gear.

[0012] The linkage component is a rod-shaped structure with a circular cross-section, and the outer wall of the drive gear component is provided with a second toothed portion with an inwardly concave arc structure, and the first toothed portion meshes with the second toothed portion.

[0013] Preferably, the clamping member includes a clamping cavity, one end of which is connected to the cutting tool housing and the other end is connected to the tissue fixation tube. A guide plate is provided in the clamping cavity, and the guide plate has a guide hole for the cutting blade to pass through.

[0014] Preferably, the other end of the clamping cavity is provided with an elastic clamping plate, and the elastic clamping plate is provided with a positioning protrusion;

[0015] One end of the tissue fixation tube is provided with a positioning groove. When the clamping cavity is connected to the tissue fixation tube, the positioning protrusion cooperates with the positioning groove.

[0016] Preferably, the clamping device includes a clamping element and a clamping switch element;

[0017] The clamping member is shaped like a frustum of a cone and includes a plurality of clamping portions evenly distributed along the circumferential direction of the clamping member. The clamping portions together form the clamping area of ​​the clamping device.

[0018] The clamping switch component includes a clamping switch sleeve and a clamping switch operating part. The clamping switch operating part is disposed on the outer wall surface of the clamping switch sleeve. The clamping switch sleeve is provided with a clamping switch cavity. The inner wall surface of the clamping switch cavity is symmetrically provided with a limiting protrusion.

[0019] The other end of the linkage component is provided with a linkage connecting column. The linkage connecting column is provided with a guide cavity that slides with the clamping component. The guide cavity is shaped like a frustum cone. The outer wall of the linkage connecting column is symmetrically provided with guide plane portions. The distance between the two guide plane portions is smaller than the cross-sectional diameter of the linkage connecting column. The cavity of the guide cavity is provided with an arc-shaped slot at a position corresponding to the position of the guide plane portion.

[0020] The linkage connecting column can cooperate with the clamping switch sleeve cavity of the clamping switch sleeve body. During the process of the linkage connecting column entering the clamping switch sleeve cavity, the limiting protrusion cooperates with the guide plane through the arc-shaped slotted part.

[0021] The clamping switch can rotate 90 degrees relative to the linkage, so that the limiting protrusion and the arc-shaped slot can cooperate, and push the clamping switch back and forth, thereby adjusting the size of the clamping area of ​​the clamping part.

[0022] Preferably, the cutting tool housing is provided with a third guide groove that cooperates with the clamping switch operating part.

[0023] Preferably, the driving mechanism further includes a driving switch component, which includes a driving switch base, a driving switch rod, an elastic reset assembly, a switching element, and a triggering element.

[0024] The drive switch rod is slidably engaged with the drive switch base, the elastic reset component is disposed between the drive switch rod and the drive switch base, the trigger element is disposed at the drive switch rod, and the switch element is disposed at the drive switch base and electrically connected to the drive motor component.

[0025] When the trigger element is in contact with the switch element, the drive motor is in the start state; when the trigger element is separated from the switch element, the drive motor is in the stop state.

[0026] Preferably, the drive switch base is provided with a switch base groove, and a cylindrical protrusion is provided in the switch base groove. One end of the drive switch rod is provided with a drive switch slide block that slides in cooperation with the switch base groove. The drive switch slide block is provided with a slide block groove and a limiting groove. The slide block groove and the limiting groove are connected. When the cylindrical protrusion is in the slide block groove position, the trigger element and the switch element are in a separated state. When the cylindrical protrusion is in the limiting groove position, the trigger element and the switch element are in a contact state.

[0027] When the cylindrical protrusion is in the sliding groove position and the drive switch rod is moved back and forth, the cutting blade body can achieve a jog-like forward or backward movement. When the drive switch rod is pushed and the cylindrical protrusion is in the limiting groove position, the cutting blade body can achieve a continuous forward or backward movement.

[0028] The elastic reset component is connected to the drive switch base and the drive switch slide, respectively.

[0029] Preferably, the cutting blade body has a tubular structure, one end of the cutting blade body is a connecting part connected to the linkage member, the connecting part of the cutting blade body is provided with staggered spiral grooves, and the other end of the cutting blade body is a blade part, which is inclined to the axis of the cutting blade body.

[0030] Compared with the prior art, the beneficial effects of the present invention include:

[0031] The tissue cutting tool of this application has a reasonable structural design. It fixes the tissue to be cut through a tissue fixation tube, and drives the linkage through a drive mechanism to move and rotate the cutting blade relative to the tissue to be cut, thereby realizing the cutting operation. It is also equipped with a camera device to facilitate user visualization operation. The clamping device allows the user to easily adjust the position of the camera device, so as to complete the tissue cutting in a stable, precise and efficient environment. It is suitable for traditional orthopedic surgery scenarios for tissue cutting of nerve entrapment in the palm, plantar fascia release and gastrocnemius muscle retraction. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 is a three-dimensional structural diagram of the present invention.

[0034] Figure 2 is a schematic diagram of the internal structure of the present invention.

[0035] Figure 3 is a schematic diagram of the internal structure of the present invention from another perspective.

[0036] Figure 4 is a schematic diagram of the cutting blade body of the present invention.

[0037] Figure 5 is a schematic diagram of the structure of the tissue fixation tube of the present invention.

[0038] Figure 6 is a schematic diagram of the linkage component of the present invention.

[0039] Figure 7 is a schematic diagram of the clamping component of the present invention.

[0040] Figure 8 is a schematic diagram of the clamping member of the present invention from the front view.

[0041] Figure 9 is a schematic diagram of the drive switch of the present invention from the front view.

[0042] Figure 10 is a cross-sectional view along the AA direction of Figure 9.

[0043] Figure 11 is a schematic diagram of the clamping component of the present invention.

[0044] Figure 12 is a schematic diagram of the clamping switch component of the present invention.

[0045] in:

[0046] 1-Cutting tool housing; 101-Third guide groove;

[0047] 2-Tissue fixation tube, 201-Positioning groove;

[0048] 3-Cutting blade body, 301-Helical groove, 302-Cutting edge;

[0049] 4-Clamping component, 401-Clamping cavity, 402-Guide plate, 403-Guide hole, 404-Elastic clamping plate, 405-Positioning protrusion;

[0050] 5-Linkage component, 501-First toothed part, 502-First guide groove, 503-Second guide groove, 504-Linkage connecting column, 505-Guide cavity, 506-Guide plane part, 507-Arc-shaped slotted part;

[0051] 6-Camera device;

[0052] 7-Clamping device, 701-Clamping component, 7011-Clamping part, 702-Clamping switch component, 7021-Clamping switch sleeve, 7022-Clamping switch operating part, 7023-Clamping switch sleeve cavity, 7024-Limiting protrusion;

[0053] 8-Drive mechanism, 801-Drive motor component, 802-Drive gear component, 803-Drive switch component, 804-Drive switch base, 8041-Switch base slide groove, 8042-Cylindrical protrusion, 805-Drive switch rod, 806-Elastic reset assembly, 807-Switch element, 808-Trigger element, 809-Drive switch slide, 8091-Slide groove, 8092-Limit groove;

[0054] 9-Battery components. Detailed Implementation

[0055] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. Many specific details are set forth in the following description to provide a thorough understanding of the present invention; the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0056] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0057] Example 1

[0058] As shown in Figures 1-12, this embodiment provides a tissue cutting tool, including a cutting tool housing 1, and the cutting tool housing 1 is provided with a cutting device, a camera device 6 and a clamping device 7;

[0059] The cutting device includes a tissue fixation tube 2, a cutting mechanism, and a driving mechanism 8. The cutting mechanism includes a cutting blade 3, a clamping member 4, and a linkage member 5. One end of the linkage member 5 is connected to the cutting blade 3. The tissue fixation tube 2 is fixed to one end of the cutting tool housing 1 through the clamping member 4. The cutting blade 3 is located inside the tissue fixation tube 2. The linkage member 5 is located inside the cutting tool housing 1. The driving mechanism 8 is located inside the cutting tool housing 1. The driving end of the driving mechanism 8 cooperates with the other end of the linkage member 5 and can drive the linkage member 5 to move and rotate within the cutting tool housing 1.

[0060] The clamping device 7 is provided with a clamping area and a clamping drive unit, and the clamping drive unit can adjust the size of the clamping area of ​​the clamping unit 7011;

[0061] The camera device 6 is installed inside the cutting tool housing 1 via the clamping device 7, and the camera device 6 passes through the cutting blade body 3 and the linkage 5.

[0062] The tissue cutting tool in this embodiment has a reasonable structural design. The tissue fixing tube 2 fixes the tissue to be cut, and the driving mechanism 8 drives the linkage 5 to move and rotate the cutting blade 3 relative to the tissue to be cut, thereby realizing the cutting operation of the tissue to be cut. At the same time, a camera device 6 is also provided to facilitate the user to realize visual operation. The clamping device 7 allows the user to easily adjust the position of the camera device 6, so as to complete the tissue cutting in a stable, accurate and efficient visual environment.

[0063] In this embodiment, the linkage 5 is a rod structure. A first channel portion for the camera device 6 to pass through is provided inside the linkage 5. A first toothed portion 501, a first guide groove 502 and a second guide groove 503 are provided on the outer wall surface of the linkage 5. The first guide groove 502 is straight and the second guide groove 503 is arc-shaped. The first guide groove 502 and the second guide groove 503 are connected and arranged, and the two sections of the second guide groove 503 are respectively provided at both ends of the first guide groove 502.

[0064] The cutting tool housing 1 is provided with a guide post that can cooperate with the first guide groove 502 or the second guide groove 503.

[0065] As described above, when the linkage 5 moves within the cutting tool housing 1 via the drive mechanism 8, it achieves linear motion through the cooperation between the first guide groove 502 and the guide post. Then, through the cooperation between the second guide groove 503 and the guide post, and since the second guide groove 503 is arc-shaped, it achieves linear and rotating motion, thereby enabling the cutting edge of the cutting blade 3 to rotate 90°. When the drive mechanism 8 reverses the movement of the linkage 5, the cutting blade 3 also reverses its movement, thus enabling the cutting operation of the tissue within the tissue fixation tube 2.

[0066] The driving mechanism 8 in this embodiment includes a driving motor 801, a driving gear 802, and a driving switch 803. The driving end of the driving motor 801 is connected to the driving gear 802.

[0067] The linkage 5 is a rod-shaped structure with a circular cross-section. The outer wall of the drive gear 802 is provided with a second toothed part with an inwardly concave arc structure. The first toothed part 501 meshes with the second toothed part.

[0068] The aforementioned drive gear 802 is used to drive the movement of the linkage 5. Meanwhile, the second toothed portion has an inwardly concave arc structure, which can better mesh with the first toothed portion 501 on the linkage 5, ensuring the stability of the drive linkage 5 during movement.

[0069] The specific structure of the driving switch 803 in this embodiment is as follows:

[0070] It includes a drive switch base 804, a drive switch lever 805, an elastic reset assembly 806, a switch element 807, and a trigger element 808;

[0071] The drive switch rod 805 is slidably engaged with the drive switch base 804. The elastic reset component 806 is disposed between the drive switch rod 805 and the drive switch base 804. The trigger element 808 is disposed at the drive switch rod 805. The switch element 807 is disposed at the drive switch base 804 and electrically connected to the drive motor component 801.

[0072] When the trigger element 808 is in contact with the switch element 807, the drive motor 801 is in the start state; when the trigger element 808 is separated from the switch element 807, the drive motor 801 is in the stop state.

[0073] Specifically, the drive switch base 804 is provided with a switch base groove 8041, and a cylindrical protrusion 8042 is provided inside the switch base groove 8041. One end of the drive switch rod 805 is provided with a drive switch slide 809 that slides in cooperation with the switch base groove 8041. The drive switch slide 809 is provided with a slide groove 8091 and a limiting groove 8092. The slide groove 8091 and the limiting groove 8092 are connected. More specifically, there are two limiting grooves 8092, which are respectively located at both ends of the slide groove 8091. There are two trigger elements 808, which are respectively located at both ends of the drive switch slide 809. The number and position of the switch elements 807 correspond to the trigger elements 808.

[0074] The user operates the drive switch lever 805 to slide against the drive switch base 804. When the cylindrical protrusion 8042 is in the slide groove 8091, the trigger element 808 and the switch element 807 are separated. When the cylindrical protrusion 8042 is in the limit groove 8092, the trigger element 808 and the switch element 807 are in contact. It should be noted that when one of the trigger elements 808 is in the triggered state, the drive motor 801 rotates in the forward direction. When the other trigger element 808 is in the triggered state, the drive motor 801 rotates in the reverse direction.

[0075] The elastic reset component 806 is connected to the drive switch base 804 and the drive switch slide 809 respectively.

[0076] Based on the above structure and principle, when the user needs to perform multiple cutting operations, this is achieved by moving the drive switch lever 805 back and forth: Moving the drive switch lever 805 back and forth with small, continuous movements brings the cylindrical protrusion 8042 close to the limiting groove 8092, causing the trigger element 808 to contact the switching element 807, thus enabling the drive motor 801 to rotate in a jog motion, allowing the cutting blade to move forward or backward in a jog motion. Moving the drive switch lever 805 back and forth with large movements brings the cylindrical protrusion 8042 to the position of the limiting groove 8092, thus enabling continuous control of the drive motor 801 to operate in a forward or reverse direction, allowing the cutting blade to move forward or backward continuously. The elastic reset component 806 can be a spring, improving the user's operating feel and also helping the drive switch lever 805 achieve an automatic reset effect.

[0077] In this embodiment, the specific structure for connecting the tissue fixation tube 2 to the cutting tool housing 1 is as follows:

[0078] The clamping member 4 includes a clamping cavity 401. One end of the clamping cavity 401 is connected to the cutting tool housing 1, and the other end is connected to the tissue fixation tube 2. A guide plate 402 is provided inside the clamping cavity 401, and a guide hole 403 is provided on the guide plate 402 for the cutting blade 3 to pass through.

[0079] Specifically, the other end of the clamping cavity 401 is provided with an elastic clamping plate 404, and the elastic clamping plate 404 is provided with a positioning protrusion 405.

[0080] One end of the tissue fixation tube 2 is provided with a positioning groove 201. When the clamping cavity 401 is connected to the tissue fixation tube 2, the positioning protrusion 405 cooperates with the positioning groove 201.

[0081] In the above structure, when the tissue fixation tube 2 is engaged with the holding cavity of the clamping member 4, the elastic clamping plate 404 is in a compressed state. With the combination of the positioning protrusion 405 and the positioning groove 201, the elastic clamping plate 404 can stably hold the tissue fixation tube 2, ensuring the stability of the connection between the two.

[0082] In this embodiment, the clamping device 7 is used to limit the position of the camera device 6, and its specific structure is as follows:

[0083] Includes clamping component 701 and clamping switch component 702;

[0084] The clamping member 701 is shaped like a frustum of a cone. The clamping member 701 includes a plurality of clamping portions 7011 evenly distributed along the circumferential direction of the clamping member 701. The clamping portions 7011 together form the clamping area of ​​the clamping device 7.

[0085] The clamping switch component 702 includes a clamping switch sleeve 7021 and a clamping switch operating part 7022. The clamping switch operating part 7022 is disposed on the outer wall surface of the clamping switch sleeve 7021. The clamping switch sleeve 7021 is provided with a clamping switch cavity 7023. The inner wall surface of the clamping switch cavity 7023 is symmetrically provided with a limiting protrusion 7024.

[0086] The other end of the linkage component 5 is provided with a linkage connecting post 504. The linkage connecting post 504 is provided with a guide cavity 505 that slides with the clamping component 701. The guide cavity 505 is shaped like a frustum cone. The outer wall of the linkage connecting post 504 is symmetrically provided with a guide plane portion 506. The distance between the two guide plane portions 506 is smaller than the cross-sectional diameter of the linkage connecting post 504. The cavity of the guide cavity 505 is provided with an arc-shaped slot portion 507 at a position corresponding to the position of the guide plane portion 506.

[0087] The linkage connecting post 504 can cooperate with the clamping switch sleeve cavity 7023 of the clamping switch sleeve body 7021. During the process of the linkage connecting post 504 entering the clamping switch sleeve cavity 7023, the limiting protrusion 7024 cooperates with the guide plane 506 through the arc-shaped slotted part 507.

[0088] Specifically, the cutting tool housing 1 is provided with a third guide groove 101 that cooperates with the clamping switch operation part 7022.

[0089] In the above structure, the clamping switch operating part 7022 actuates the clamping switch sleeve 7021 to move within the cutting tool housing 1. The clamping switch sleeve 7021 actuates the clamping member 701 to move within the guide cavity 505 of the linkage member 5. Since both the clamping member 701 and the guide cavity 505 are truncated cones, the distance between the clamping parts 7011 decreases as the clamping member 701 enters the guide cavity 505, thereby reducing the size of the clamping area and achieving the effect of clamping and limiting the camera device 6. When the clamping member 701 moves in the opposite direction, the distance between the clamping parts 7011 increases, thereby increasing the size of the clamping area and releasing the clamping and limiting of the camera device 6, thus allowing the position of the camera device 6 to be adjusted.

[0090] Simultaneously, the linkage connecting column 504 also needs to enter the clamping switch sleeve cavity 7023 to achieve the above-mentioned adjustment of the movement of the clamping member 701. According to the structure of the second guide groove 503, when the linkage member 5 rotates, it makes the arc-shaped slotted part 507 correspond to the position of the limiting protrusion 7024, so that the linkage connecting column 504 can enter the clamping switch sleeve cavity 7023, that is, the clamping switch can rotate 90 degrees relative to the linkage member, so that the limiting protrusion and the arc-shaped slotted part cooperate, and push the clamping switch back and forth, so as to adjust the size of the clamping area of ​​the clamping part, and achieve the effect of clamping and limiting the camera device 6 or releasing the clamping and limiting of the camera device 6.

[0091] In this embodiment, the cutting blade body 3 is a tubular structure. One end of the cutting blade body 3 is a connecting part that is connected to the linkage 5. The connecting part of the cutting blade body 3 is provided with staggered spiral grooves 301. The other end of the cutting blade body 3 is a blade part 302, which is inclined to the axis of the cutting blade body 3.

[0092] Finally, in this embodiment, the cutting tool housing 1 is also provided with a battery 9 for supplying power to the drive motor 801.

[0093] In summary, the tissue cutting tool of this application has a reasonable structural design, which facilitates visual operation for users. The clamping device 7 allows users to easily adjust the position of the camera device 6, thereby completing tissue cutting in a stable, accurate and efficient visual environment.

[0094] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A tissue cutting tool, characterized in that, The device includes a cutting tool housing, on which a cutting device, a camera device, and a clamping device are mounted. The cutting device includes a tissue fixation tube, a cutting mechanism, and a driving mechanism. The cutting mechanism includes a cutting blade, a clamping member, and a linkage member. One end of the linkage member is connected to the cutting blade. The tissue fixation tube is fixed to one end of the cutting tool housing via the clamping member, and the cutting blade is located inside the tissue fixation tube. The linkage member is located inside the cutting tool housing, and the driving mechanism is located inside the cutting tool housing. The driving end of the driving mechanism cooperates with the other end of the linkage member and can drive the linkage member to move linearly and rotate within the cutting tool housing. The clamping device has a clamping area and a clamping driving part. The clamping driving part can adjust the size of the clamping area of ​​the clamping device. The camera device... The camera is installed inside the cutting tool housing via the clamping device, and passes through the cutting blade and the linkage. The linkage is a rod structure with a first channel for the camera to pass through. The outer wall of the linkage has a first toothed portion, a first guide groove, and a second guide groove. The first guide groove is straight, and the second guide groove is arc-shaped. The first guide groove and the second guide groove are connected, and two sections of the second guide groove are respectively located at both ends of the first guide groove. A guide post is provided inside the cutting tool housing to cooperate with the first and second guide grooves. The driving mechanism includes a driving gear, the outer wall of which has a second toothed portion with an inwardly concave arc structure. The first toothed portion meshes with the second toothed portion.

2. The tissue cutting tool according to claim 1, characterized in that, The driving mechanism includes a driving motor component, the driving end of which is connected to the driving gear component; the linkage component is a rod-shaped structure with a circular cross-section.

3. The tissue cutting tool according to claim 1, characterized in that, The clamping member includes a clamping cavity, one end of which is connected to the cutting tool housing and the other end of which is connected to the tissue fixation tube. A guide plate is provided in the clamping cavity, and the guide plate has a guide hole for the cutting blade to pass through.

4. A tissue cutting tool according to claim 3, characterized in that, The other end of the clamping cavity is provided with an elastic clamping plate, and the elastic clamping plate is provided with a positioning protrusion; one end of the tissue fixing tube is provided with a positioning groove, and when the clamping cavity is connected to the tissue fixing tube, the positioning protrusion cooperates with the positioning groove.

5. A tissue cutting tool according to claim 1, characterized in that, The clamping device includes a clamping member and a clamping switch member; the clamping member is shaped like a frustum of a cone and includes a plurality of clamping portions evenly distributed along the circumferential direction of the clamping member, forming a clamping area of ​​the clamping device between the plurality of clamping portions; the clamping switch member includes a clamping switch sleeve and a clamping switch operating part, the clamping switch operating part being disposed on the outer wall surface of the clamping switch sleeve, the clamping switch sleeve having a clamping switch cavity inside, the inner wall surface of the clamping switch cavity having symmetrically provided limiting protrusions; the other end of the linkage member is provided with a linkage connecting post, the linkage connecting post having a guide cavity that slides with the clamping member, the guide cavity being shaped like a frustum of a cone, the linkage connecting post... The outer wall of the connecting column is symmetrically provided with guide plane portions, and the distance between the two guide plane portions is smaller than the cross-sectional diameter of the linkage connecting column. An arc-shaped slot is provided at the cavity of the guide cavity, corresponding to the position of the guide plane portion. The linkage connecting column can cooperate with the clamping switch sleeve cavity of the clamping switch sleeve. During the process of the linkage connecting column entering the clamping switch sleeve cavity, the limiting protrusion cooperates with the guide plane portion through the arc-shaped slot. The clamping switch can rotate 90 degrees relative to the linkage component, so that the limiting protrusion cooperates with the arc-shaped slot and pushes the clamping switch back and forth, thereby adjusting the size of the clamping area of ​​the clamping component.

6. A tissue cutting tool according to claim 5, characterized in that, The cutting tool housing is provided with a third guide groove that cooperates with the clamping switch operating part.

7. A tissue cutting tool according to claim 2, characterized in that, The driving mechanism further includes a driving switch component, which includes a driving switch base, a driving switch rod, an elastic reset assembly, a switching element, and a trigger element. The driving switch rod is slidably engaged with the driving switch base. The elastic reset assembly is disposed between the driving switch rod and the driving switch base. The trigger element is disposed at the driving switch rod. The switching element is disposed at the driving switch base and electrically connected to the driving motor component. When the trigger element contacts the switching element, the driving motor component is in the start state. When the trigger element separates from the switching element, the driving motor component is in the stop state.

8. A tissue cutting tool according to claim 7, characterized in that, The drive switch base is provided with a switch base groove, and a cylindrical protrusion is provided in the switch base groove. One end of the drive switch rod is provided with a drive switch slide block that slides in cooperation with the switch base groove. The drive switch slide block is provided with a slide block groove and a limiting groove. The slide block groove and the limiting groove are connected. When the cylindrical protrusion is in the slide block groove position, the trigger element and the switch element are in a separated state. When the cylindrical protrusion is in the limiting groove position, the trigger element and the switch element are in contact. When the cylindrical protrusion is in the slide block groove position and the drive switch rod is moved back and forth, the cutting blade can achieve a jog forward or backward movement. When the drive switch rod is pushed and the cylindrical protrusion is in the limiting groove position, the cutting blade can achieve a continuous forward or backward movement. The elastic reset component is connected to the drive switch base and the drive switch slide block respectively.

9. A tissue cutting tool according to claim 1, characterized in that, The cutting blade body has a tubular structure. One end of the cutting blade body is a connecting part that connects to the linkage component. The connecting part of the cutting blade body is provided with staggered spiral grooves. The other end of the cutting blade body is a cutting edge, which is inclined to the axis of the cutting blade body.

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