CN214128774U

CN214128774U - Interventional tool for endoscope and medical robot

Info

Publication number: CN214128774U
Application number: CN202022167477.2U
Authority: CN
Inventors: 张旭波; 薛人峰; 王珏; 孙晨; 孙玉宁
Original assignee: Jiangsu Gongda Boshi Medical Robot Research Development Co ltd
Current assignee: Jiangsu University Of Technology Collaborative Medical Robot Co ltd
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-09-07
Anticipated expiration: 2030-09-28

Abstract

The application provides an interventional tool for an endoscope and a medical robot. The interventional tool for the endoscope comprises a fixing mechanism, a rotating mechanism for driving the endoscope tube body to rotate and a driving and reversing mechanism for driving the endoscope tube body to advance and retreat. The interventional tool for the endoscope can limit the position of the endoscope tube body through the combination of the hollow rotating shaft of the rotating mechanism and the transmission elements of the plurality of advancing and retreating units, thereby ensuring the accuracy of the position of the endoscope tube body; and the elastic element is arranged on the supporting element, so that the pressure of the transmission element acting on the endoscope tube body is ensured to be in a proper range, the endoscope tube body is always contacted with the transmission element in the moving process, and the endoscope tube body can be effectively advanced, retreated and rotated.

Description

Interventional tool for endoscope and medical robot

Technical Field

The application belongs to the field of medical equipment, and particularly relates to an interventional tool for an endoscope and a medical robot.

Background

The field of medical instruments is a development trend as a cross field between the medical field and the robot field, and advantages in the robot field are applied to the medical field.

The endoscope has a tubular structure, can enter body organs such as stomach, intestinal tract and the like through oral cavity or other natural orifices, and can be used for seeing pathological changes on the inner side of a human body, so the endoscope is very useful for doctors. For example, a doctor can observe a lesion in the duodenum with the aid of an endoscope for the digestive tract, and can observe a lesion in the bronchus with the aid of an endoscope for the bronchoscope.

In the traditional endoscopy, a doctor needs to hold the endoscope to advance, retreat and rotate, and the doctor is easy to fatigue and shake under a long-time working state, so that the image is blurred and distorted; with the development of science and technology, the robot medical assistance technology can well solve the problems.

For example, patent CN110367909A discloses a novel feeding device for a digestive endoscope, which comprises two clamping mechanisms for clamping the digestive endoscope, and a slider and a slide guide for controlling the digestive endoscope to move forward and backward; the rotation of the digestive endoscope is controlled through the rotary gear. In the digestive endoscope feeding device, the advancing and retreating distance of the digestive endoscope does not exceed the length of the sliding plate guide rail, so that the longer sliding plate guide rail is required to be arranged, and the advancing and retreating distance of the digestive endoscope meets the requirement of the actual depth of the digestive endoscope inserted into a human body; but the rotation angle of the rotating gear is also very limited. In addition, the conventional intervention tool for an endoscope is clamped on the endoscope tube body by pressure and fixed, so that the endoscope tube body is easily damaged.

SUMMERY OF THE UTILITY MODEL

The application provides an intervention instrument and medical robot for endoscope to solve among the prior art endoscope with intervention instrument centre gripping pressure fixed on the endoscope body, damage the endoscope body easily.

According to an aspect of the present application, there is provided an interventional tool for an endoscope, comprising a fixing mechanism provided with a through hole for mounting a bearing, a rotating mechanism driving an endoscope tube body to rotate, and a advancing and retreating mechanism driving the endoscope tube body to advance and retreat; the rotating mechanism is provided with a rotating unit, a first driving unit and a hollow rotating shaft, and the rotating unit is connected with the hollow rotating shaft and the first driving unit; the hollow rotating shaft is connected to the through hole of the fixing mechanism, the endoscope tube body penetrates through the hollow rotating shaft, and the first driving unit drives the rotating unit to rotate; the advancing and retreating mechanism comprises a second driving unit and at least one group of advancing and retreating units which are arranged along the axial direction of the endoscope tube body, each advancing and retreating unit group comprises more than 2 advancing and retreating units, and the advancing and retreating units are arranged along the circumferential direction of the endoscope tube body and comprise supporting elements and transmission elements; the transmission element is arranged at the first end of the supporting element and is abutted against the endoscope tube body, the transmission element of the advancing and retreating unit clamps the endoscope tube body, and the transmission element of at least one advancing and retreating unit is in transmission connection with the second driving unit and drives the endoscope tube body to advance or retreat along the axial direction of the endoscope tube body through friction transmission; the second end of the support member is mounted on the rotary unit; the supporting element is provided with an elastic element which acts on the transmission element to control the pressure of the transmission element acting on the endoscope tube body.

In one embodiment, the rotating unit is a hollow cylindrical structure, the supporting element is a rod, the second end of the rod movably penetrates through the wall of the hollow cylindrical structure, the elastic element is sleeved on the rod, one end of the elastic element abuts against one end of the rod, the other end of the elastic element abuts against the inner wall of the hollow cylindrical structure, and a limiting part for fixing is arranged at the second end of the rod.

Wherein the hollow cylindrical structure is provided with a gear ring; the first driving unit comprises a first driving motor and a first mounting seat used for fixing the first driving motor, the first mounting seat is fixed on the fixing mechanism, and the output end of the first driving motor is in transmission connection with the gear ring.

Specifically, the second driving unit comprises a second driving motor and a second mounting seat for fixing the second driving motor, the second mounting seat is fixed on the supporting element, and the output end of the second driving motor is in transmission connection with the transmission element.

Specifically, the fixing mechanism of the present application includes: the supporting units are arranged on two sides of the base; the supporting unit is provided with a through hole for mounting a bearing, the two ends of the rotating mechanism are both provided with hollow rotating shafts, and the two hollow rotating shafts are respectively connected with the through hole.

In actual operation, the endoscope tube body can slip when advancing and retreating and rotating, in order to avoid the phenomenon, a friction layer is arranged on the surface of the transmission element, the friction force between the transmission element and the endoscope tube body is improved, and the slip phenomenon is avoided.

In order to better define the endoscope tube body, the surface of the transmission element is concave, so that the transmission element can better clamp the endoscope tube body.

Preferably, the transmission element of the present application is a roller, and the roller occupies a small space, so that the structure of the present application can be more compact, and the volume of the endoscope intervention tool is reduced.

Preferably, the thickness of the grinding wheel is the same as the diameter of the endoscope tube, so that the endoscope tube can be ensured to be always in the preset track without being separated.

According to an aspect of the present application, there is provided a medical robot including: a robot main body and the endoscopic interventional tool as described above; the robot main body has a robot arm to which a fixing mechanism of the endoscope intervention tool is detachably connected.

The application has the following beneficial effects:

(1) the endoscope intervention tool integrates advancing and retreating and rotation, and the advancing and retreating unit is arranged in the rotating unit, so that the volume of the endoscope intervention tool is reduced; meanwhile, the grinding wheel is used as a transmission element, so that the structure of the endoscope interventional tool is further simplified, and the occupied volume of the endoscope interventional tool is further reduced;

(2) the position of the endoscope tube body can be limited by combining the hollow rotating shaft of the rotating mechanism and the transmission elements of the plurality of advancing and retreating units, so that the accuracy of the position of the endoscope tube body is ensured;

(3) the elastic element is arranged on the supporting element, so that the pressure of the transmission element acting on the endoscope tube body is ensured to be in a proper range, the endoscope tube body is always contacted with the transmission element in the moving process, and the endoscope tube body can be effectively advanced, retreated and rotated.

Drawings

Certain specific embodiments of the present application will hereinafter be described in detail by way of example and not limitation with reference to the accompanying drawings, in which like reference numerals identify the same or similar parts or features, and it will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a schematic view showing the structure of an endoscopic interventional tool according to one embodiment;

FIG. 2 is a schematic view showing an internal structure of the interventional tool for endoscope in FIG. 1;

FIG. 3 is a schematic diagram of a hollow cylindrical structure according to one embodiment;

FIG. 4 is a schematic view of the endoscopic tool of FIG. 1 being advanced and retracted;

FIG. 5 is a schematic view showing the construction of an endoscopic interventional tool according to another embodiment;

FIG. 6 is a schematic view showing an internal structure of the interventional tool for endoscope in FIG. 5;

FIG. 7 is a schematic view showing the construction of an endoscopic interventional tool according to another embodiment;

FIG. 8 is a schematic view showing the internal structure of the interventional tool for endoscope in FIG. 7;

FIG. 9 is a schematic view of another embodiment of a drive member gripping an endoscope tube;

FIG. 10 is a schematic view of a driving element with a friction layer on the surface to grip the tube of an endoscope in one embodiment;

FIG. 11 is a schematic view of one embodiment of a concave surface transmission element gripping an endoscope tube;

fig. 12 is a schematic structural diagram and a schematic working environment diagram of a medical robot according to an embodiment.

Description of reference numerals:

1. a fixing mechanism; 11. a through hole; 12. a bearing; 13. a base; 14. a support unit; 15. an end cap;

2. a rotation mechanism; 21. a first drive unit; 22. a rotation unit; 23. a hollow rotating shaft; 24. a gear ring; 211. a first drive motor; 212. a first mounting seat; 213. an output end gear of the first driving motor; 221. a cylindrical support; 222 pores;

3. an advancing and retreating mechanism; 31. a second driving unit; 311 a second drive motor; 312 second mount; 313. an output end gear of the second driving motor; 32. an advancing and retreating unit; 321. a support element; 322. a transmission element; 323. an elastic element; 324. a rod member; 325. a limiting member; 326. a raised structure; 327. a friction layer; 328. an input gear of the transmission element;

4. an endoscope tube body;

5. a mechanical arm;

6. a robot main body;

7. the human mouth.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in many ways different from those described herein, and similar modifications may be made by those skilled in the art without departing from the spirit of the present application, and the present application is therefore not limited to the specific implementations disclosed below.

In the description of the present application, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; the two can be directly connected or connected through other connecting parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description of the present application, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "above," "below," and "over" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "above," "below," and "above" a second feature includes the first feature being directly below and obliquely below the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

In the description of the present application, the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like refer to an orientation or positional relationship that is based on the orientation or positional relationship shown in the drawings, merely for convenience of description and ease of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and not for purposes of special definition.

Fig. 1 is a schematic view showing a configuration of an endoscopic interventional tool according to an embodiment of the present application, and fig. 2 is a schematic view showing an internal configuration of the endoscopic interventional tool shown in fig. 1. The endoscopic intervention tool comprises: a fixed mechanism 1, a rotating mechanism 2 and an advancing and retreating mechanism 3. The rotating mechanism 2 is arranged on the fixing mechanism 1, the advancing and retreating mechanism 3 is arranged on the rotating mechanism 2, and when the rotating mechanism 2 rotates, the advancing and retreating mechanism 3 can be driven to rotate.

The fixing mechanism 1 is provided with a through hole 11, and the through hole 11 is used for installing a bearing 12; the rotating mechanism 2 has a first driving unit 21, a rotating unit 22 and a hollow rotating shaft 23, the hollow rotating shaft 23 is connected to the through hole 11 of the fixing mechanism 1, the endoscope tube 4 penetrates through the hollow rotating shaft 23, and the first driving unit 21 drives the rotating unit 22 to rotate around the hollow rotating shaft 23. In addition, an end cap 15 for fixing the bearing 12 may be provided outside the bearing 12, and the end cap 15 may prevent external liquid or dust from entering the bearing 12.

The advancing-retreating mechanism 3 includes a second driving unit 31 and at least one set of advancing-retreating unit group provided along the axial direction of the endoscope tube body 4, the advancing-retreating unit group includes 2 or more advancing-retreating units 32, the advancing-retreating units 32 are provided along the circumferential direction of the endoscope tube body 4, and each advancing-retreating unit 32 includes a support element 321 and a transmission element 322. The transmission element 322 is disposed at the first end of the supporting element 321 and abuts against the endoscope tube 4, the transmission element 322 of the advancing and retreating unit 32 clamps the endoscope tube 4, wherein the transmission element 322 of at least one advancing and retreating unit 32 is in transmission connection with the second driving unit 31, and the transmission element 322 drives the endoscope tube 4 to advance or retreat along the axial direction thereof through friction transmission.

Further, a second end of the support member 321 is mounted on the rotation unit 22. The supporting element 321 is provided with an elastic element 323, and the elastic element 323 acts on the transmission element 322 to control the pressure of the transmission element 322 on the endoscope tube body 4. The pressure of the transmission element 322 acting on the endoscope tube body 4 can be controlled within a proper range by the elastic element 323, and the endoscope tube body 4 is ensured to be always contacted with the transmission element 322 in the moving process, so that the endoscope tube body 4 can be ensured to advance and retreat and rotate effectively, and the endoscope tube body 4 cannot be damaged due to the fact that the transmission element 322 exerts too much pressure on the endoscope tube body 4 when the endoscope tube body 4 deviates from the axis center line. In this embodiment, the elastic force of the elastic element 323 can directly act on the transmission element 322, or the elastic force can be transmitted to the transmission element 322 through the supporting element 321.

Continuing to refer to fig. 1 and 2, in one embodiment, the rotating unit 22 may be a hollow cylindrical structure, the second end of the supporting element 321 is a rod 324 movably penetrating through the wall of the hollow cylindrical structure, the elastic element 323 is sleeved on the rod 324 and located inside the hollow cylindrical structure, and the end of the rod 324 is provided with a fixing limiting element 325.

The wall of the hollow cylindrical structure is provided with corresponding holes for the rod piece 324 to pass through, and the hole diameter of the holes is slightly larger than the diameter of the rod piece 324, so that the supporting element 321 can be well limited, the transmission element 322 can be limited, and the position stability of the endoscope tube body 4 can be kept. The rod 324 can slide for a length of 0 to 10mm, which is sufficient for fine adjustment of the endoscope tube 4 in the radial direction.

The hollow cylindrical structure of the present application is not limited to the hollow cylindrical structure shown in fig. 1, but may be a hollow cylindrical structure shown in fig. 3. The hollow cylindrical structure shown in fig. 3, which includes the cylindrical holder 221 and the aperture 222 provided thereon for the passage of the rod 324, makes it easier to install the advancing and retreating mechanism in the interior thereof and saves material, as compared with the hollow cylindrical structure shown in fig. 1.

The first end of the supporting element 321 further has a convex structure 326, the elastic element 323 is sleeved outside the rod 324, and the elastic element 323 is defined between the wall of the hollow cylindrical structure and the convex structure 326. The elastic element 323 needs to be adjusted in advance to a certain extent before intervention movement, and intervention transmission can be performed on the endoscope tube body 4 after the pre-pressure of the adjusted elastic element 323 and the position of the transmission element 322 reach an ideal state. The adjustment can be achieved by changing the position of the fixing stop 325, by compressing and extending the overall length of the elastic element 323. Specifically, the limiting member 325 may be a nut, and the rod 324 is provided with a thread corresponding to the nut.

A gear ring 24 is provided around the periphery of the cylinder of the hollow cylindrical structure. The gear ring 24 may be a one-piece structure milled through a stepped column or a separate gear ring may be assembled to the exterior of the hollow cylindrical structure through an assembly relationship. The gears of the ring gear 24 are typically designed as involute gears to achieve a smooth drive characteristic.

The first driving unit 21 includes a first driving motor 211 and a first mount 212 for fixing the first driving motor 211. The first mounting base 212 is fixed to the fixing mechanism 1, for example, may be fixed to the base 13 of the fixing mechanism 1, and the output end 213 of the first driving motor 211 is in transmission connection with the gear ring 24.

Continuing to refer to fig. 1 and 2, the fixing mechanism 1 comprises: the bearing support mechanism comprises a base 13 and two support units 14, wherein the support units are arranged on two sides of the base 13, the two support units 14 are respectively provided with a through hole 11 for mounting a bearing 12, and the rotating mechanism 2 is provided with two hollow rotating shafts 23 respectively connected with the through holes 11. The fixing mechanism 1 is fixed between the two support units 14 by two hollow rotating shafts 23, and rotates about the two hollow rotating shafts 23.

The rotational movement of the endoscopic tool as in fig. 1 is as follows: the output end 213 of the first driving motor 211 can be directly engaged with the gear ring 24, and when the output end 213 of the first driving motor 211 rotates, the gear ring 24 can be driven to rotate, so that the advancing and retreating mechanism 3 can also rotate around the hollow rotating shaft 24, i.e. the axis of the endoscope tube 4. Since the transmission element 322 holds the endoscope tube 4 and thus rotates the endoscope tube 4 along its circumference, the scope can be rotated by the intervention tool over a range of motion exceeding 360 °, i.e. at least one complete rotation. And the rotating unit 22 does not affect the transmission element 322 to continue to drive the endoscope tube 4 to move forward or backward along the axial direction thereof when rotating.

The second driving unit 31 includes a second driving motor 311 and a second mount 312 for fixing the second driving motor 311, the second mount 312 being fixed on the supporting member 321. The second driving motor 311 may be a small servo motor, and when the second driving motor 311 rotates, the output end 313 of the second driving motor 311 is connected to the input end gear 328 of the transmission element 322, so as to drive the transmission element 322 to rotate.

Fig. 4 is a schematic view showing the forward and backward movement of the interventional tool for endoscope in fig. 1. When the transmission element 322 rotates clockwise, the transmission element 322 abuts against the surface of the endoscope tube 4, so that the endoscope tube 4 is driven by friction to move leftwards along the axis direction of the endoscope tube 4. Conversely, when the transmission element 322 rotates in the counterclockwise direction, the endoscope tube 4 is driven to move to the right along the direction of the axis thereof. And because the transmission element 322 can rotate in one direction all the time during the rotation process, the advancing and retreating distance can be theoretically the length of the whole endoscope tube body 4, and the length is usually more than 500 mm. In addition, an encoder may be disposed on the transmission element 322 to determine the movement of the endoscope tube 4 based on the actual rolling status of the transmission element 322.

As shown in fig. 1, the advancing-retreating mechanism 3 includes two rows of advancing-retreating unit groups arranged in parallel along the axial direction of the endoscope tube body 4, each of which includes four advancing-retreating units 32 arranged along the circumferential direction of the endoscope tube body 4.

As shown in fig. 5 and 6, the advancing-retreating mechanism 3 includes a row of advancing-retreating unit groups provided along the axial direction of the endoscope tube body 4, each of which includes four advancing-retreating units 32 provided along the circumferential direction of the endoscope tube body 4.

As shown in fig. 7 and 8, the advancing-retreating mechanism 3 includes two rows of advancing-retreating unit groups arranged in parallel along the axial direction of the endoscope tube body 4, each of which includes three advancing-retreating units 32 arranged in the circumferential direction of the endoscope tube body 4.

When two or more rows of advancing and retreating unit groups are adopted, the endoscope tube body 4 can be ensured to move forward and backward, the friction force required by advancing and retreating the endoscope tube body 4 is dispersed on the two rows of advancing and retreating unit groups, the stress condition of the contact surface is more uniform as the pressure is dispersed on a larger area, the pressure borne by the endoscope tube body 4 is reduced, and the possibility of failures such as crushing and the like caused by the compression of the endoscope tube body 4 can be prevented. The driving element 322 can be a roller having a thickness equal to the diameter of the endoscope tube 4, where "equal" means that the thickness of the roller is about the same as the diameter of the endoscope tube 4, for example, within 4 mm, so as to ensure that the endoscope tube 4 is always in the predetermined track without being separated. In the advancing and retreating unit group, one driving wheel may be provided in each row, i.e., the roller is connected to the second driving motor 311, and the other rollers may be driven wheels.

As shown in fig. 9, which is a schematic view of the driving element 322 clamping the endoscope tube 4 in one embodiment, four driving elements 322 may define a square accommodating space, and the driving elements 322 serve as four sides of the accommodating space, so as to effectively clamp the endoscope tube 4.

As shown in fig. 10, in another embodiment, a friction layer 328 may be further disposed on the surface of the transmission element 322 for improving the friction between the transmission element 322 and the endoscope tube 4, so as to clamp the endoscope tube 4. The friction layer 328 may be a material that increases the coefficient of friction while having a certain ability to deform, and may typically be medical grade silicone rubber, butyl rubber, or the like. These materials enable the endoscope body 4 to better advance and retreat without severe slipping in a certain pressure range.

As shown in fig. 11, which is a schematic view of the transmission element 322 clamping the endoscope tube 4 in another embodiment, the surface of the transmission element 322 is concave, so as to better define the position of the endoscope tube 4.

In addition, the present application further provides a medical robot, as shown in fig. 12, which is a schematic structural diagram and a schematic working environment diagram of the medical robot. The medical robot includes: a robot main body 6 and an endoscopic interventional tool; the robot main body 6 has a robot arm 5, and the fixing mechanism 1 of the endoscopic interventional tool is detachably connected to the robot arm 5. Taking an endoscope as a bronchoscope as an example, when detecting lesions of a respiratory tract of a human body, the tail end of the mechanical arm 5 reaches a position which is not far away from a mouth 7 of the human body, the pose is adjusted and fixed, and then the endoscope tube body 4 is slowly inserted by an insertion tool for endoscope to move for detection and treatment. In the process of advancing and retreating the endoscope tube body 4, whether the advancing and retreating movement is executed or not can be controlled at any time through stopping and rotating the second driving unit 31, the speed of the advancing and retreating movement is controlled through the rotating speed of the second driving unit 31, the endoscope tube body 4 can be driven to rotate through the rotating mechanism 2 at any time, and the actual requirements can be well met.

Of course, the scope of the present application includes gastroscopes, enteroscopes, etc., and the scope may be a flexible tube or a rigid tube, which falls within the scope of the present application.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the present application have been illustrated and described in detail herein, many other variations and modifications consistent with the principles of the application may be ascertained or derived directly from the disclosure herein without departing from the spirit and scope of the application. Accordingly, the scope of the present application should be understood and interpreted to cover all such other variations or modifications.

Claims

1. An intervention tool for an endoscope, comprising a fixing mechanism, a rotating mechanism for driving an endoscope tube body to rotate, and an advancing and retreating mechanism for driving the endoscope tube body to advance and retreat,

the fixing mechanism is provided with a through hole for mounting a bearing;

the rotating mechanism is provided with a rotating unit, a first driving unit and a hollow rotating shaft, and the rotating unit is connected with the hollow rotating shaft and the first driving unit; the hollow rotating shaft is connected to the through hole of the fixing mechanism, the endoscope tube body penetrates through the hollow rotating shaft, and the first driving unit drives the rotating unit to rotate;

the advancing and retreating mechanism comprises a second driving unit and at least one group of advancing and retreating units which are arranged along the axial direction of the endoscope tube body, each advancing and retreating unit group comprises more than 2 advancing and retreating units, and the advancing and retreating units are arranged along the circumferential direction of the endoscope tube body and comprise supporting elements and transmission elements;

the transmission element is arranged at the first end of the supporting element and is abutted against the endoscope tube body, the transmission element of the advancing and retreating unit clamps the endoscope tube body, and the transmission element of at least one advancing and retreating unit is in transmission connection with the second driving unit and drives the endoscope tube body to advance or retreat along the axial direction of the endoscope tube body through friction transmission;

the second end of the support member is mounted on the rotary unit;

the supporting element is provided with an elastic element which acts on the transmission element to control the pressure of the transmission element acting on the endoscope tube body.

2. The interventional tool for endoscope according to claim 1, wherein the rotation unit is a hollow cylindrical structure, the supporting member is a rod, a second end of the rod movably penetrates through a wall of the hollow cylindrical structure, the elastic member is sleeved on the rod, one end of the elastic member abuts against one end of the rod, the other end of the elastic member abuts against an inner wall of the hollow cylindrical structure, and a fixing stopper is provided at the second end of the rod.

3. The endoscopic interventional tool of claim 2, wherein the hollow cylindrical structure is provided with a gear ring; the first driving unit comprises a first driving motor and a first mounting seat used for fixing the first driving motor, the first mounting seat is fixed on the fixing mechanism, and the output end of the first driving motor is in transmission connection with the gear ring.

4. The interventional tool for an endoscope according to claim 1, wherein the second driving unit includes a second driving motor and a second mounting seat for fixing the second driving motor, the second mounting seat is fixed on the supporting member, and an output end of the second driving motor is in transmission connection with the transmission member.

5. The endoscopic interventional tool of claim 1, wherein the securing mechanism comprises: the supporting units are arranged on two sides of the base; the supporting unit is provided with a through hole for mounting a bearing, the two ends of the rotating mechanism are both provided with hollow rotating shafts, and the hollow rotating shafts are connected with the through hole.

6. The endoscopic interventional tool of claim 1, wherein a surface of the transmission element is provided with a friction layer for improving a friction force between the transmission element and the endoscope tube.

7. The endoscopic interventional tool of claim 1, wherein the surface of the transmission element is concave.

8. The endoscopic interventional tool of claim 1, wherein the transmission element is a roller.

9. The endoscopic interventional tool of claim 8, wherein the thickness of the grinding wheel is the same as the diameter of the endoscope tube.

10. A medical robot, comprising: a robot main body and the endoscopic interventional tool according to any one of claims 1 to 9; the robot main body has a robot arm to which a fixing mechanism of the endoscope intervention tool is detachably connected.