Liquid pipe sleeve, medical ultrasonic knife, and robot-assisted ultrasonic knife system

Abstract

Provided are a liquid pipe sleeve, a medical ultrasonic knife, and a robot-assisted ultrasonic knife system. The liquid pipe sleeve (100) comprises a pipe sleeve body (10), an adjusting assembly (20), a mounting assembly (30), and a connecting assembly (40). The pipe sleeve body (10) extends in a first direction X and has a first end (11) and a second end (12) arranged in the first direction X opposite to each other. The mounting assembly (30) is connected to the first end (11) of the pipe sleeve body (10) and is connected to a handle (200). The adjusting assembly (20) is provided with a third end (21) and a fourth end (22) arranged in the first direction X opposite to each other. The connecting assembly (40) connects the pipe sleeve body (10) to the adjusting assembly (20). The adjusting assembly (20) can move in the first direction X to change the maximum distance between an end part of the second end (12) and an end part of the fourth end (22) in the first direction X.

Description

Liquid flow tube sheath, medical ultrasonic scalpel and robot-assisted ultrasonic scalpel system Cross-references

[0001] This application refers to Chinese Patent Application No. 202420120428.9 filed on January 17, 2024, entitled “Liquid Flow Tube Sheath, Medical Ultrasonic Scalpel and Robot-Assisted Ultrasonic Scalpel System”, which is incorporated into this application in its entirety by reference. Technical Field

[0002] The present application relates to the technical field of medical devices, and in particular to a liquid flow tube sleeve, a medical ultrasonic scalpel, and a robot-assisted ultrasonic scalpel system. Background Art

[0003] With the development of ultrasound technology and its integration into modern medicine, medical ultrasonic scalpels are increasingly being used in surgical procedures. These scalpels consist of a handle, a blade head, and a fluidic tubing. Both the blade head and the fluidic tubing are connected to the same end of the handle. The fluidic tubing is mounted on the blade head, and the front end of the blade head extends out of the fluidic tubing to cut tissue. During operation, the ultrasonic scalpel can cool the blade head by delivering coolant through the fluidic tubing.

[0004] In the related art, after the medical ultrasonic scalpel is installed, the length of the front end of the scalpel head extending out of the liquid flow tube sleeve is fixed. If the length of the front end of the scalpel head extending out needs to be changed, the liquid flow tube sleeve needs to be removed and replaced with a new one. The application range of the liquid flow tube sleeve is relatively narrow. Summary of the Invention

[0005] The present application aims to solve at least one of the technical problems in the background art. To this end, one object of the present application is to provide a fluid tube sleeve, a medical ultrasonic scalpel, and a robot-assisted ultrasonic scalpel system, so that the fluid tube sleeve has a wider range of applications.

[0006] An embodiment of the first aspect of the present application provides a liquid flow tube sleeve, which includes: a tube sleeve body extending along a first direction X, the tube sleeve body having a first end and a second end arranged opposite to each other along the first direction X; an adjustment assembly having a third end and a fourth end arranged opposite to each other along the first direction X; a mounting assembly connected to the first end of the tube sleeve body, the mounting assembly being used to connect to a handle; and a connecting assembly connecting the tube sleeve body and the adjusting assembly; wherein the adjusting assembly can be moved along the first direction X to change the maximum distance between the end of the second end and the end of the fourth end along the first direction X.

[0007] In some embodiments, the adjustment component includes: an adjustment sleeve, the outer side wall of the adjustment sleeve is in contact with the inner side wall of the sleeve body, and the third end is located in the adjustment sleeve; an adjustment part, connected to the adjustment sleeve, the adjustment part and the third end are respectively located at opposite ends of the adjustment sleeve along the first direction X, the fourth end is located at the other end of the adjustment part opposite to the connection with the adjustment sleeve, and the outer side wall of the adjustment part has a plurality of fixing slots arranged at intervals along the first direction X; one end of the connecting component is connected to the outer side wall of the sleeve body, and the other end of the connecting component has a fixing protrusion movably located in the fixing slot, wherein the fixing protrusion and the fixing slot are configured to be used for when the fixing protrusion is located in different fixing slots among the multiple fixing slots, the maximum distance between the end of the second end and the end of the fourth end along the first direction X is different.

[0008] In some embodiments, the outer wall of the sleeve body has a fixing groove, and the two opposite side walls of the fixing groove have a first mounting hole, and the connecting component includes: a torsion spring, which is located in the fixing groove, and one of the torsion arms of the torsion spring is against the bottom surface of the fixing groove; a key buckle, a fixing protrusion is connected to the end of the key buckle, and the other end of the key buckle opposite to the fixing protrusion has a key part, and the key buckle has a second mounting hole, and the second mounting hole is located between the fixing protrusion and the key part; a connecting shaft, which passes through one of the two first mounting holes, the second mounting hole, the center hole of the torsion spring, and the other first mounting hole of the two first mounting holes in sequence; wherein, the other torsion arm of the torsion spring is against the side of the button part facing the fixing groove.

[0009] In some embodiments, the fixed slot includes a first surface and a second surface relative to each other, and the angle between the first surface and the second surface is an acute angle; the fixed protrusion includes a third surface and a fourth surface relative to each other, and when the fixed protrusion is located in the fixed slot, the third surface is in contact with the first surface, and the fourth surface is in contact with the second surface.

[0010] In some embodiments, the first surface is perpendicular to the first direction X. For the first surface and the second surface in the same fixed slot, the second surface is close to the third end, and the first surface is close to the fourth end.

[0011] In some embodiments, the angles between the first surface and the second surface and the first direction X are both greater than 30 degrees.

[0012] In some embodiments, the extending direction of the connecting axis is perpendicular to the first direction X.

[0013] In some embodiments, the extending direction of the connecting axis is parallel to the first direction X, and the side wall of the sleeve body has a fixing through hole for the fixing protrusion to extend into the inner cavity of the sleeve body.

[0014] In some embodiments, the adjustment portion includes a first arc-shaped adjustment plate, which extends along the first direction X, and one end of the first arc-shaped adjustment plate along the first direction X is connected to the adjustment tube sleeve, and the other end of the first arc-shaped adjustment plate along the first direction X is a free end. Alternatively, the adjustment portion includes a connecting tube and multiple second arc-shaped adjustment plates, and the multiple second arc-shaped adjustment plates all extend along the first direction X, and one end of the multiple second arc-shaped adjustment plates along the first direction X is connected to the adjustment tube sleeve, and the other end of the multiple second arc-shaped adjustment plates along the first direction X is connected to the connecting tube. The multiple second arc-shaped adjustment plates are arranged at intervals along the circumference of the adjustment tube sleeve, and the fixed slot is located on at least one second arc-shaped adjustment plate among the multiple second arc-shaped adjustment plates; or, the adjustment portion includes a cylindrical tube, and the cylindrical tube extends along the first direction X.

[0015] In some embodiments, the outer side wall of the adjustment portion has a limiting protrusion, the limiting protrusion and the plurality of fixing slots are arranged along the first direction X, and the limiting protrusion is located on a side of the plurality of fixing slots close to the fourth end.

[0016] In some embodiments, the inner side wall of the sleeve body has a first plane, the first plane is parallel to the first direction X, and the first plane extends to the end surface of the second end. The outer side wall of the adjustment sleeve has a second plane, and the second plane extends to the end surface of the other end of the adjustment sleeve opposite to the third end. The first plane is in contact with the second plane.

[0017] In some embodiments, the inner side wall of the sleeve body has a first boss protruding toward the inner cavity of the sleeve body, and the side of the first boss facing the inner cavity of the sleeve body is a first plane; along a direction perpendicular to the second plane, the height H of the other end of the adjustment sleeve opposite to the third end is less than the height H of the third end, so that the third end of the adjustment sleeve forms a second boss, and the second boss is located on the side of the first boss away from the second end; the orthographic projection of the first boss on the first surface at least partially overlaps with the orthographic projection of the second boss on the first surface, and the first surface is perpendicular to the first direction X.

[0018] In some embodiments, the mounting assembly is sleeved on the first end of the sleeve body, and the outer side wall of the sleeve body has a circle of mounting grooves at the first end, and the mounting grooves surround the sleeve body along the circumference of the sleeve body; the inner side wall of the mounting assembly facing one end of the sleeve body has a circle of first annular bosses, and the first annular bosses are located in the mounting grooves.

[0019] In some embodiments, the outer side wall of the sleeve body has a second annular boss and a third annular boss arranged at intervals along the first direction X, and a mounting groove is formed between the second annular boss and the third annular boss.

[0020] In some embodiments, one of the inner sidewall of the sleeve body and the outer sidewall of the adjustment sleeve has a guide groove extending along the first direction X, and the other of the inner sidewall of the sleeve body and the outer sidewall of the adjustment sleeve has a guide protrusion movably located in the guide groove.

[0021] In some embodiments, the adjustment assembly includes multiple sub-adjustment assemblies, the multiple sub-adjustment assemblies are connected by a connecting assembly, and any two adjacent sub-adjustment assemblies are movably connected along the first direction X.

[0022] According to an embodiment of the second aspect of the present application, a medical ultrasonic scalpel is provided, comprising: a liquid flow tube sleeve according to any one of the above embodiments; a handle connected to the mounting assembly of the liquid flow tube sleeve; a blade head connected to the handle, the blade head and the liquid flow tube sleeve are both connected to the same end of the handle, and the liquid flow tube sleeve is mounted on the blade head.

[0023] According to an embodiment of the third aspect of the present application, a robot-assisted ultrasonic scalpel system is provided, which includes a robot-assisted surgical device and a medical ultrasonic scalpel as claimed in the claim; the robot-assisted surgical device is connected to the blade head in the medical ultrasonic scalpel to control the movement of the blade head.

[0024] The length of the liquid flow tube sleeve provided in the embodiment of the present application is positively correlated with the maximum distance between the end of the second end and the end of the fourth end along the first direction. When the liquid flow tube sleeve and the cutter head are installed, the length of the cutter head is fixed, and the length of the liquid flow tube sleeve can be adjusted by controlling the adjustment component to move along the first direction. If the length of the liquid flow tube sleeve changes, the length of the cutter head extending can be changed. The length of the cutter head extending can be adjusted by controlling the adjustment component to move along the first direction, without the need to disassemble the liquid flow tube sleeve and replace it with a new liquid flow tube sleeve or cutter head. The liquid flow tube sleeve is adaptable to more scenarios and has a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar components or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0026] FIG1 shows a schematic structural diagram of a liquid flow pipe sleeve provided in an embodiment of the present application;

[0027] FIG2 shows an exploded schematic diagram of a liquid flow pipe sleeve provided in an embodiment of the present application;

[0028] FIG3 shows a schematic structural diagram of a liquid pipe sleeve body provided in an embodiment of the present application;

[0029] FIG4 shows a schematic cross-sectional view of a liquid pipe sleeve body provided in an embodiment of the present application;

[0030] FIG5 shows a schematic structural diagram of an adjustment component provided in an embodiment of the present application;

[0031] FIG6 shows a cross-sectional schematic diagram of a liquid flow tube sleeve provided in an embodiment of the present application in one state;

[0032] FIG7 shows a cross-sectional schematic diagram of a liquid flow tube sleeve provided in an embodiment of the present application in another state;

[0033] FIG8 shows a schematic structural diagram of an installation assembly provided in an embodiment of the present application;

[0034] FIG9 is a partial cross-sectional schematic diagram showing the cooperation between an adjustment assembly and a sleeve body provided in an embodiment of the present application;

[0035] FIG10 shows a partial enlarged view of point A in FIG9 ;

[0036] FIG11 is a partial cross-sectional schematic diagram showing an adjustment assembly and a sleeve body in another state of engagement provided by an embodiment of the present application;

[0037] FIG12 is a partial cross-sectional diagram showing the cooperation between a fixing protrusion and a fixing slot provided in an embodiment of the present application;

[0038] FIG13 shows a schematic structural diagram of another liquid flow pipe sleeve provided in an embodiment of the present application;

[0039] FIG14 shows a partial exploded schematic diagram of another liquid flow pipe sleeve provided in an embodiment of the present application;

[0040] FIG15 shows a cross-sectional schematic diagram of another liquid flow tube sleeve provided in an embodiment of the present application;

[0041] FIG16 shows a cross-sectional schematic diagram of another liquid flow pipe sleeve provided in an embodiment of the present application at another cross section;

[0042] FIG17 shows a cross-sectional schematic diagram of another liquid flow tube sleeve provided by an embodiment of the present application in another state;

[0043] FIG18 shows a schematic structural diagram of another liquid flow tube sleeve provided in an embodiment of the present application;

[0044] FIG19 shows a schematic structural diagram of another liquid flow tube sleeve provided in an embodiment of the present application;

[0045] FIG20 shows a schematic structural diagram of a medical ultrasonic scalpel provided in an embodiment of the present application.

[0046] Explanation of Reference Numerals: 100, liquid flow tube sleeve; 200, handle; 300, blade head; 10, tube sleeve body; 11, first end; 12, second end; 13, fixing groove; 14, first mounting hole; 15, fixing through-hole; 16, first plane; 17, first boss; 18, mounting groove; 19, second annular boss; 110, third annular boss; 111, fourth annular boss; 112, avoidance notch; 20. Adjustment assembly; 21. Third end; 22. Fourth end; 23. Adjustment sleeve; 231. Second plane; 232. Second boss; 24. Adjustment portion; 241. Fixed slot; 2411. First surface; 2412. Second surface; 242. First arc-shaped adjustment plate; 243. Connecting tube; 244. Second arc-shaped adjustment plate; 245. Cylindrical tube; 246. Limiting protrusion; 247. Annular stop; 201. Sub-adjustment assembly; 30. Mounting assembly; 31. First annular boss; 40. Connecting assembly; 41. Fixed protrusion; 411. Third surface; 412. Fourth surface; 42. Torsion spring; 43. Key buckle; 431. Key portion; 432. Second mounting hole; 44. Connecting shaft; 50. Guide groove; 60. Guide protrusion. DETAILED DESCRIPTION

[0047] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present application. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0048] An embodiment of the present application provides a fluid flow pipe sleeve. Figure 1 shows a schematic structural diagram of a fluid flow pipe sleeve according to an embodiment of the present application. Figure 2 shows an exploded schematic diagram of a fluid flow pipe sleeve according to an embodiment of the present application. Referring to Figures 1 and 2, the fluid flow pipe sleeve 100 includes a pipe sleeve body 10, an adjustment assembly 20, a mounting assembly 30, and a connection assembly 40.

[0049] Figure 3 shows a schematic structural diagram of a liquid tube sheath body provided in an embodiment of the present application. Figure 4 shows a schematic cross-sectional diagram of a liquid tube sheath body provided in an embodiment of the present application. In conjunction with Figures 1 to 4 , the sheath body 10 extends along a first direction X and has a first end 11 and a second end 12 that are oppositely aligned along the first direction X. A mounting assembly 30 is connected to the first end 11 of the sheath body 10 and is configured to connect to the handle.

[0050] Figure 5 shows a schematic structural diagram of an adjustment assembly provided in an embodiment of the present application. Referring to Figure 5 , the adjustment assembly 20 has a third end 21 and a fourth end 22 that are arranged opposite each other along a first direction X. Referring to Figures 1 to 5 , a connecting assembly 40 connects the sleeve body 10 and the adjustment assembly 20 .

[0051] Figure 6 shows a schematic cross-sectional view of a liquid flow tube sleeve according to an embodiment of the present application in one state. Figure 7 shows a schematic cross-sectional view of a liquid flow tube sleeve according to an embodiment of the present application in another state. In conjunction with Figures 6 and 7 , the adjustment assembly 20 can move along a first direction X to change the maximum distance between the end of the second end 12 and the end of the fourth end 22 along the first direction X.

[0052] It should be noted that the maximum distance between the end of the second end 12 and the end of the fourth end 22 along the first direction X is the maximum distance between the end of the second end 12 and the end of the fourth end 22 along the first direction X when the position of the adjustment assembly 20 remains constant, that is, when the relative positions of the sleeve body 10 and the adjustment assembly 20 remain constant. When the relative positions of the sleeve body 10 and the adjustment assembly 20 change, the maximum distance between the end of the second end 12 and the end of the fourth end 22 along the first direction X will also change. For example, in Figures 6 and 7 , the relative positions of the sleeve body 10 and the adjustment assembly 20 change, so that the maximum distance L1 between the end of the second end 12 and the end of the fourth end 22 in Figure 6 is different from the maximum distance L2 between the end of the second end 12 and the end of the fourth end 22 in Figure 7 , where L1 is greater than L2.

[0053] In an embodiment of the present application, the sleeve body 10 is a barrel-shaped structure, the accommodating cavity of the sleeve body 10 extends along the first direction X, and both ends of the accommodating cavity along the first direction X are open, so that the cutter head can pass through the accommodating cavity of the sleeve body 10.

[0054] In an embodiment of the present application, the mounting assembly 30 is connected to the handle, thereby connecting the fluid tube sleeve 100 to the knife handle. Exemplarily, the mounting assembly 30 and the handle can be connected by threads. For example, Figure 8 shows a structural schematic diagram of a mounting assembly provided in an embodiment of the present application. Referring to Figure 8, the mounting assembly 30 is a barrel-shaped structure, the accommodating cavity of the mounting assembly 30 extends along the first direction X, the inner side wall of the mounting assembly 30 has an internal thread, and one end of the handle has an external thread, thereby realizing a threaded connection between the mounting assembly 30 and the handle. Alternatively, the mounting assembly 30 has an external thread, and one end of the handle has an internal thread, thereby realizing a threaded connection between the mounting assembly 30 and the handle. In other implementations, the mounting assembly 30 and the handle can be connected by interference fit.

[0055] In the embodiment of the present application, the adjustment component 20 also has a receiving cavity with two ends open, so that the front end of the cutting head can extend out of the liquid flow tube sleeve and the front end of the cutting head can contact the tissue.

[0056] In the embodiment of the present application, since the sleeve body 10, the adjustment assembly 20, and the installation assembly 30 all extend along the first direction X, the length of the liquid flow sleeve 100 is equal to the maximum distance between the end of the installation assembly 30 away from the sleeve body 10 and the end of the fourth end 22 along the first direction X. The greater the maximum distance between the end of the second end 12 and the end of the fourth end 22 along the first direction X, the greater the length of the liquid flow sleeve 100.

[0057] In an embodiment of the present application, the connecting assembly 40 allows the third end 21 of the adjusting assembly 20 to be movable with the second end 12 of the sleeve body 10. The movable connection between the third end 21 of the adjusting assembly 20 and the second end 12 of the sleeve body 10 can be implemented in a variety of ways. For example, the third end 21 of the adjusting assembly 20 can have external threads, and the second end 12 of the sleeve body 10 can have internal threads. The length of the threaded connection between the adjusting assembly 20 and the sleeve body 10 can be adjusted based on the desired length of the liquid flow sleeve 100. Alternatively, the sleeve body 10 can be sleeved onto the adjusting assembly 20. The sidewall of the sleeve body 10 has a plurality of through holes spaced apart along the first direction X. The sidewall of the adjusting assembly 20 also has threaded holes. When the length of the liquid flow sleeve needs to be adjusted, the threaded holes are connected to different through holes, and then a control bolt is passed through the through hole to connect with the threaded hole, thereby adjusting the length of the liquid flow sleeve.

[0058] In an embodiment of the present application, the length of the liquid flow tube sleeve 100 is positively correlated with the maximum distance between the end of the second end 12 and the end of the fourth end 22 along the first direction X. When the liquid flow tube sleeve 100 and the cutter head are installed, the length of the cutter head is fixed, and the length of the liquid flow tube sleeve 100 can be adjusted by controlling the adjustment component 20 to move along the first direction X. If the length of the liquid flow tube sleeve 100 changes, the length of the cutter head extending can be changed. The length of the cutter head extending can be adjusted by controlling the adjustment component 20 to move along the first direction X, without having to disassemble the liquid flow tube sleeve and replace a new liquid flow tube sleeve or cutter head. The liquid flow tube sleeve 100 is adaptable to more scenarios and has a wider range of applications.

[0059] For example, by adjusting the overall length of the fluid flow tube sleeve 100 , the length of the protruding blade can be changed, thereby achieving the purpose of limiting the cutting depth and protecting soft tissue.

[0060] According to some embodiments of the present application, FIG9 shows a partial cross-sectional schematic diagram of an adjustment assembly provided in an embodiment of the present application in cooperation with a sleeve body. FIG10 shows a partial enlarged view of point A in FIG9 . In conjunction with FIG1 , FIG2 , FIG5 , FIG9 and FIG10 , the adjustment assembly 20 includes an adjustment sleeve 23 and an adjustment portion 24. The outer wall of the adjustment sleeve 23 is in contact with the inner wall of the sleeve body 10, and the third end 21 is located on the adjustment sleeve 23. The adjustment portion 24 is connected to the other end of the adjustment sleeve 23 opposite to the third end 21, and the fourth end 22 is located on the other end of the adjustment portion 24 opposite to the connection with the adjustment sleeve 23. The outer wall of the adjustment portion 24 has a plurality of fixing slots 241 arranged at intervals along the first direction X. One end of the connecting component 40 is connected to the outer side wall of the sleeve body 10, and the other end of the connecting component 40 has a fixing protrusion 41 movably located in the fixing slot 241, wherein the fixing protrusion 41 and the fixing slot 241 are configured to be used for when the fixing protrusion 41 is located in different fixing slots 241 among the multiple fixing slots 241, the maximum distance between the end of the second end 12 and the end of the fourth end 22 along the first direction X is different.

[0061] In the embodiment of the present application, the adjusting sleeve 23 and the adjusting portion 24 may be manufactured separately and then connected together, or the adjusting sleeve 23 and the adjusting portion 24 may be integrally formed.

[0062] Exemplarily, the adjusting portion 24 may be an arc-shaped plate extending along the first direction X, or the adjusting portion 24 may also be a pipe sleeve extending along the first direction X.

[0063] In the embodiment of the present application, the outer wall of the adjusting sleeve 23 is in contact with the inner wall of the sleeve body 10 , so that the adjusting sleeve 23 can move along the first direction X in contact with the inner wall of the sleeve body 10 .

[0064] In an embodiment of the present application, since one end of the connecting component 40 is connected to the outer side wall of the sleeve body 10, when the fixing protrusion 41 is located in the fixing groove 241, the connecting component 40 is fixed, so that the position of the adjusting component 20 and the sleeve body 10 is fixed, thereby realizing the connection between the sleeve body 10 and the adjusting component 20.

[0065] In the embodiment of the present application, when the length of the fluid tube sleeve needs to be adjusted, the fixing protrusion 41 can be first controlled to disengage from the fixing slot 241, and then the adjustment tube sleeve 23 can be controlled to move along the first direction X in contact with the inner side wall of the tube sleeve body 10. At this time, the relative position of the fixing slot 241 and the connecting assembly 40 will change. When the length of the fluid tube sleeve reaches the set length, the fixing protrusion 41 is controlled to be located in the corresponding fixing slot 241, thereby adjusting the length of the fluid tube sleeve 100. If the adjustment tube sleeve 23 moves again, the fixing protrusion 41 will block the movement of the adjustment tube sleeve 23, thereby fixing the adjustment assembly 20.

[0066] According to some embodiments of the present application, as shown in FIG3 , the outer wall of the sleeve body 10 has a fixing groove 13, and two opposing sidewalls of the fixing groove 13 have first mounting holes 14. In conjunction with FIG2 and FIG10 , the connecting assembly 40 includes a torsion spring 42, a key clip 43, and a connecting shaft 44. The torsion spring 42 is positioned within the fixing groove 13, with one of its torsion arms abutting against the bottom surface of the fixing groove 13. A fixing protrusion 41 is connected to the end of the key clip 43. The other end of the key clip 43, opposite the fixing protrusion 41, has a key portion 431. The key clip 43 has a second mounting hole 432 located between the fixing protrusion 41 and the key portion 431. The connecting shaft 44 sequentially passes through one of the two first mounting holes 14, the second mounting hole 432, the center hole of the torsion spring 42, and the other of the two first mounting holes 14. The other torsion arm of the torsion spring 42 abuts against a surface of the button portion 431 facing the fixing groove 13 .

[0067] In the embodiment of the present application, the fixing groove 13 is close to the second end 12 of the sleeve body 10 , so that the connecting assembly 40 is closer to the adjusting portion 24 , facilitating the connection between the connecting assembly 40 and the adjusting portion 24 .

[0068] In some embodiments of the present application, part of the outer wall of the sleeve body 10 can be removed to form a fixing groove 13; in other embodiments of the present application, a fourth annular boss 111 can be formed on the outer wall of the sleeve body 10, and the fourth annular boss 111 and the outer wall of the sleeve body 10 form a fixing groove 13.

[0069] In the embodiment of the present application, the two torsion arms of the torsion spring 42 are located on the same side of the torsion spring 42 , and both the two torsion arms of the torsion spring 42 can generate elastic force on the parts they contact.

[0070] In an embodiment of the present application, when the connecting assembly 40 is installed, the button buckle 43 can rotate around the connecting shaft 44. When the button buckle 43 rotates, it can drive the fixing protrusion 41 to rotate, so that the fixing protrusion 41 can be detached from the fixing slot 241 or located in the fixing slot 241.

[0071] In the embodiment of the present application, when in use, as shown in FIG10 , the torsion arm of the torsion spring 42 abuts against the surface of the button portion 431 facing the fixing groove 13. The torsion arm of the torsion spring 42 generates an upward thrust F1 on the button portion 431, causing the button clip 43 to rotate about the connecting shaft 44. The fixing protrusion 41 at the other end of the button clip 43 moves along the direction F2 toward the fixing groove 241, so that the fixing protrusion 41 is located in the fixing groove 241. If the adjustment sleeve 23 moves, the fixing protrusion 41 will prevent the adjustment sleeve 23 from moving, thereby fixing the adjustment assembly 20.

[0072] FIG11 is a partial cross-sectional schematic diagram showing an adjustment assembly and a sleeve body provided in an embodiment of the present application in cooperation with each other in another state. 11 , when the length of the fluid tube sleeve 100 needs to be adjusted, the button buckle 43 is pressed at the button portion 431, and the pressing force F3 applied to the button portion 431 is greater than the thrust F1 of the torsion arm of the torsion spring 42 on the button portion 431. At this time, the button portion 431 moves toward the bottom surface of the fixing groove 13 along the direction F3, and the button buckle 43 rotates around the connecting shaft 44. The fixing protrusion 41 at the other end of the button buckle 43 moves along the direction F4 away from the fixing groove 241, so that the fixing protrusion 41 disengages from the fixing groove 241, and then the adjustment tube sleeve 23 is adjusted to move. When the length of the fluid tube sleeve 100 reaches the set length, the button portion 431 is pressed, and the thrust F1 of the torsion arm of the torsion spring 42 on the button portion 431 pushes the button buckle 43 to rotate again, so that the fixing protrusion 41 at the other end of the button buckle 43 moves toward the fixing groove 241, and the fixing protrusion 41 is located in the fixing groove 241.

[0073] In some embodiments of the present application, as shown in FIG3 , the outer wall of the sleeve body 10 has a relief notch 112. The relief notch 112 is located at the second end 12 of the sleeve body 10 and extends through one sidewall of the fixing groove 13 to communicate with the fixing groove 13. The relief notch 112 provides relief for the connection assembly 40, thereby providing more space for the connection assembly 40.

[0074] According to some embodiments of the present application, Figure 12 illustrates a partial cross-sectional schematic diagram of a fixing protrusion mating with a fixing slot provided in an embodiment of the present application. Referring to Figures 10 and 12, the fixing slot 241 includes a first surface 2411 and a second surface 2412 that are opposed to each other, and the angle α between the first surface 2411 and the second surface 2412 is acute. The fixing protrusion 41 includes a third surface 411 and a fourth surface 412 that are opposed to each other. When the fixing protrusion 41 is located in the fixing slot 241, the third surface 411 mates with the first surface 2411, and the fourth surface 412 mates with the second surface 2412.

[0075] In some embodiments of the present application, from the cross-sectional view of Figure 10, the shape of the fixed card slot 241 can be a triangle, in which case the first surface 2411 and the second surface 2412 are both adjacent and opposite. In other embodiments of the present application, from the cross-sectional view of Figure 10, the shape of the fixed card slot 241 can be a rounded triangle, that is, the first surface 2411 and the second surface 2412 are connected by an arc surface, in which case the first surface 2411 and the second surface 2412 are opposite. In other embodiments of the present application, from the cross-sectional view of Figure 10, the shape of the fixed card slot 241 can be a trapezoid, that is, the first surface 2411 and the second surface 2412 are connected by a plane, in which case the first surface 2411 and the second surface 2412 are opposite. In other embodiments of the present application, from the cross-sectional view of Figure 10, the shape of the fixed card slot 241 can be a rectangle.

[0076] Exemplarily, the shape of the fixing protrusion 41 is the same as the shape of the fixing slot 241 , and will not be described in detail in the embodiments of the present application.

[0077] In some embodiments of the present application, the angle α between the first surface 2411 and the second surface 2412 is an acute angle. When other conditions remain constant, the shape of the fixing slot 241 is smaller and the opening is smaller, so that the fixing protrusion 41 is not easy to fall out of the fixing slot 241, thereby ensuring that the relative position of the adjustment component 20 and the tube sleeve body 10 is constant during the operation, avoiding affecting the operation.

[0078] Exemplarily, the included angle α between the first surface 2411 and the second surface 2412 is greater than or equal to 20° and less than or equal to 60°. For example, the included angle α between the first surface 2411 and the second surface 2412 is equal to 45°.

[0079] According to some embodiments of the present application, the first surface 2411 is perpendicular to the first direction X. For the first surface 2411 and the second surface 2412 in the same fixed slot 241 , the second surface 2412 is close to the third end 21 , and the first surface 2411 is close to the fourth end 22 .

[0080] In the embodiment of the present application, if the length of the liquid flow tube sleeve 100 needs to be increased without pressing the button portion 431, a force along the first direction X and away from the adjustment tube sleeve 23 can be applied to the adjustment portion 24. The second surface 2412 of the fixing slot 241 will apply a thrust F5 perpendicular to the second surface 2412 to the fixing protrusion 41. F5 can be decomposed into a first component F51 parallel to the first direction X and a second component F52 perpendicular to the first direction X. If the thrust F5 is large enough, the second component F52 will push the fixing protrusion 41 to move along the direction of the second component F52 away from the fixing slot 241, causing the fixing protrusion 41 to disengage from the fixing slot 241, thereby increasing the length of the liquid flow tube sleeve 100.

[0081] If, during surgery, tissue at the surgical site applies a force along the first direction X toward the adjustment sleeve 23 to the adjustment portion 24, the first surface 2411 of the fixing slot 241 will apply a thrust F6 perpendicular to the first surface 2411 to the fixing protrusion 41. This thrust F6 has no component perpendicular to the first direction X, preventing the fixing protrusion 41 from dislodging from the fixing slot 241. Furthermore, during surgery, tissue at the surgical site rarely applies a force along the first direction X toward the adjustment sleeve 23 to the adjustment portion 24. This ensures that the relative positions of the adjustment assembly 20 and the sleeve body 10 remain constant during surgery, thus preventing any disruption to the procedure.

[0082] According to some other embodiments of the present application, angles between the first surface 2411 and the second surface 2412 and the first direction X are both greater than 30 degrees.

[0083] In the embodiment of the present application, the angles between the first surface 2411 and the second surface 2412 and the first direction X are both greater than 30 degrees. As described above, the length of the liquid flow tube sleeve 100 can be increased or decreased without pressing the button portion 431. Furthermore, because the angles between the first surface 2411 and the second surface 2412 and the first direction X are both greater than 30 degrees, the component perpendicular to the first direction X is relatively small during adjustment, requiring a greater force to adjust the length of the liquid flow tube sleeve 100. During surgery, the tissue at the surgical site generally exerts a relatively small force on the adjustment portion 24, insufficient to move the adjustment assembly 20. This ensures that the relative position of the adjustment assembly 20 and the tube sleeve body 10 remains constant during surgery, thus preventing interference with the procedure.

[0084] For example, the angle between the first surface 2411 and the first direction X and the angle between the second surface 2412 and the first direction X may be equal or unequal. For example, the angle between the first surface 2411 and the second surface 2412 and the first direction X may both be 75 degrees, or the angle between the first surface 2411 and the first direction X may be 80 degrees, and the angle between the second surface 2412 and the first direction X may be 60 degrees.

[0085] In some embodiments of the present application, referring to FIG. 1 , FIG. 2 , FIG. 4 , FIG. 10 and FIG. 11 , the extending direction of the connecting shaft 44 is perpendicular to the first direction X.

[0086] In the embodiment of the application, since the extension direction of the connecting shaft 44 is perpendicular to the first direction X, the fixing protrusion 41 at the end of the button buckle 43 can extend out of the second end 12, making it easier for the fixing protrusion 41 to cooperate with the fixing slot 241, which is more convenient.

[0087] In other embodiments of the present application, Figure 13 illustrates a schematic structural diagram of another liquid flow tube sleeve provided in an embodiment of the present application. Figure 14 illustrates a partially exploded schematic diagram of another liquid flow tube sleeve provided in an embodiment of the present application. Figure 15 illustrates a cross-sectional schematic diagram of another liquid flow tube sleeve provided in an embodiment of the present application. Referring to Figures 13 to 15 , the connecting shaft 44 extends parallel to the first direction X, and the sidewall of the tube sleeve body 10 includes a fixing through-hole 15 through which the fixing protrusion 41 extends into the inner cavity of the tube sleeve body 10.

[0088] In an embodiment of the present application, the extension direction of the connecting shaft 44 is parallel to the first direction X, so that the length direction of the connecting component 40 can be perpendicular to the first direction X. At the same time, the fixing protrusion 41 can be matched with the fixing slot 241 through the fixing through hole 15. In this way, the matching point between the fixing protrusion 41 and the fixing slot 241 can be located inside the sleeve body 10 and will not be exposed to the outside. On the one hand, it is beautiful, and on the other hand, it can prevent the matching point between the fixing protrusion 41 and the fixing slot 241 from being bumped and affecting the safety of the operation.

[0089] FIG16 shows a schematic cross-sectional view of another embodiment of the present invention's liquid flow tube sleeve in another cross-sectional view. FIG17 shows a schematic cross-sectional view of another embodiment of the present invention's liquid flow tube sleeve in another state. In conjunction with FIG16 and FIG17 , when the button portion 431 is not pressed, the fixing protrusion 41 is located within the fixing slot 241, preventing the adjustment assembly 20 from moving in the first direction X, thereby ensuring that the relative position of the adjustment assembly 20 and the tube sleeve body 10 remains constant during surgery. After the button portion 431 is pressed, the fixing protrusion 41 moves within the fixing through-hole 15 and disengages from the fixing slot 241, thereby allowing the adjustment assembly 20 to move in the first direction X to adjust the length of the liquid flow tube sleeve 100.

[0090] According to some embodiments of the present application, referring to Figures 1, 2, 5 to 7, the adjustment portion 24 includes a first arc-shaped adjustment plate 242, which extends along the first direction X. One end of the first arc-shaped adjustment plate 242 along the first direction X is connected to the adjustment sleeve 23, and the other end of the first arc-shaped adjustment plate 242 along the first direction X is a free end.

[0091] In the embodiment of the present application, the adjustment portion 24 does not completely wrap the blade head in the circumferential direction, which can provide the operator with a better viewing angle during the operation and facilitate the operation.

[0092] According to other embodiments of the present application, FIG18 shows a schematic structural diagram of another liquid flow sleeve provided in an embodiment of the present application. Referring to FIG18 , the adjustment portion 24 includes a connecting tube 243 and a plurality of second curved adjustment plates 244 . The plurality of second curved adjustment plates 244 extend along the first direction X. One end of the plurality of second curved adjustment plates 244 along the first direction X is connected to the adjustment sleeve 23 , and the other end of the plurality of second curved adjustment plates 244 along the first direction X is connected to the connecting tube 243 . The plurality of second curved adjustment plates 244 are arranged at intervals along the circumference of the adjustment sleeve 23 , and a fixing slot 241 is located on at least one of the plurality of second curved adjustment plates 244 .

[0093] In an embodiment of the present application, the adjustment portion 24 is designed to be a hollow structure through multiple second arc-shaped adjustment plates 244 and connecting tubes 243. During the operation, the operator can observe from the hollow part, which can provide the operator with a certain perspective and also improve the strength of the adjustment portion 24.

[0094] According to other embodiments of the present application, Figure 19 shows a schematic structural diagram of another liquid flow tube sleeve provided in an embodiment of the present application. Referring to Figures 13 and 19, the adjustment portion 24 includes a cylindrical tube 245, which extends along the first direction X.

[0095] In the embodiment of the present application, the adjusting portion 24 is directly configured as a cylindrical tube 245 , which has a simple structure and is easier to manufacture. In addition, the adjusting portion 24 has a higher strength and is not easily damaged.

[0096] According to some embodiments of the present application, referring to FIG. 5 , the outer wall of the adjusting portion 24 has a limiting protrusion 246 , the limiting protrusion 246 and the plurality of fixing slots 241 are arranged along the first direction X, and the limiting protrusion 246 is located on the side of the plurality of fixing slots 241 close to the fourth end 22 .

[0097] In the embodiment of the present application, as the adjustment component 20 moves toward the sleeve body 10 along the first direction X, the distance between the limiting protrusion 246 and the second end 12 of the sleeve body 10 becomes closer and closer. When the second end 12 abuts against the limiting protrusion 246, the adjustment component 20 can no longer move toward the sleeve body 10, thereby preventing the adjustment component 20 from completely entering the inner cavity of the sleeve body 10 and making it impossible to remove the adjustment component 20.

[0098] In an embodiment of the present application, referring to FIG18 , when the adjustment portion 24 includes a connecting tube 243 and a plurality of second arc-shaped adjustment plates 244 , an annular stop 247 can be provided at one end of the connecting tube 243 away from the sleeve body 10 . The annular stop 247 can also prevent the adjustment component 20 from completely entering the inner cavity of the sleeve body 10 and making it impossible to remove the adjustment component 20 .

[0099] In an embodiment of the present application, when the sleeve body 10 and the adjustment assembly 20 are installed, the annular stop 247 is not yet set on the connecting pipe 243. The adjusting sleeve 23 is first extended from the first end 11 of the sleeve body 10 into the interior of the sleeve body 10. After the adjusting sleeve 23 is extended from the second end 12 of the sleeve body 10, the annular stop 247 is then set on the connecting pipe 243.

[0100] For example, the connecting pipe 243 and the annular stop 247 may be connected by welding; or the connecting pipe 243 and the annular stop 247 may be connected by bonding.

[0101] In an embodiment of the present application, referring to Figures 13 and 19, when the adjustment portion 24 includes a cylindrical tube 245, an annular stop 247 can also be provided at the end of the cylindrical tube 245 away from the sleeve body 10 to prevent the adjustment component 20 from completely entering the inner cavity of the sleeve body 10 and being unable to be removed.

[0102] In an embodiment of the present application, when installing the sleeve body 10 and the adjustment assembly 20, the annular stop 247 has not yet been connected to the cylindrical tube 245. First, the end of the cylindrical tube 245 away from the adjustment sleeve 23 is extended from the first end 11 of the sleeve body 10 into the interior of the sleeve body 10. After the end of the cylindrical tube 245 away from the adjustment sleeve 23 is extended from the second end 12 of the sleeve body 10, the annular stop 247 is connected to the cylindrical tube 245.

[0103] For example, the annular stop 247 and the cylindrical tube 245 may be connected by welding; or the annular stop 247 and the cylindrical tube 245 may be connected by threads; or the annular stop 247 and the cylindrical tube 245 may be interference fit.

[0104] 1 to 5 , the inner sidewall of the sleeve body 10 has a first plane 16 , which is parallel to the first direction X and extends to the end surface of the second end 12 . The outer sidewall of the adjustment sleeve 23 has a second plane 231 , which extends to the end surface of the other end of the adjustment sleeve 23 opposite to the third end 21 , and the first plane 16 is in contact with the second plane 231 .

[0105] During surgery, it is necessary to ensure that the sleeve body 10 and the adjustment assembly 20 cannot rotate with each other to prevent the sleeve body 10 and the adjustment assembly 20 from rotating relative to each other and affecting the operator's line of sight, thereby adversely affecting the surgery. In the embodiment of the present application, by having a first flat surface 16 on the inner side wall of the sleeve body 10 and a second flat surface 231 on the outer side wall of the adjustment sleeve 23, and the first flat surface 16 and the second flat surface 231 being aligned, when the sleeve body 10 and the adjustment assembly 20 are to rotate relative to each other, since the other parts of the inner side wall of the sleeve body 10 and the other parts of the outer side wall of the adjustment sleeve 23 are arc surfaces, the first flat surface 16 and the second flat surface 231 will block the relative rotation between the sleeve body 10 and the adjustment assembly 20, thereby maintaining a fixed relative position between the sleeve body 10 and the adjustment assembly 20, thereby avoiding adverse effects on the surgery.

[0106] For example, the inner sidewall of the sleeve body 10 may have one first flat surface 16 ; or the inner sidewall of the sleeve body 10 may have multiple first flat surfaces 16 , which are evenly spaced apart along the circumference of the sleeve body 10 .

[0107] 1 to 7 , the inner sidewall of the sleeve body 10 has a first boss 17 that protrudes toward the inner cavity of the sleeve body 10. The surface of the first boss 17 facing the inner cavity of the sleeve body 10 is a first plane 16. Along a direction perpendicular to the second plane 231, the height H1 of the other end of the adjustment sleeve 23, opposite the third end 21, is smaller than the height H2 of the third end 21, so that the third end 21 of the adjustment sleeve 23 forms a second boss 232. The second boss 232 is located on the side of the first boss 17 away from the second end 12. The orthographic projection of the first boss 17 on the first surface at least partially overlaps with the orthographic projection of the second boss 232 on the first surface. The first surface is perpendicular to the first direction X.

[0108] In the embodiment of the present application, the orthographic projection of the first boss 17 on the first surface represents the projection of the first boss 17 on the first plane when the projection lines are parallel to each other and perpendicular to the first plane. Similarly, the orthographic projection of the second boss 232 on the first surface represents the projection of the second boss 232 on the first plane when the projection lines are parallel to each other and perpendicular to the first plane.

[0109] In the embodiment of the present application, a first boss 17 is provided in the inner cavity of the sleeve body 10, and a first plane 16 is formed by the first boss 17. At the same time, a second boss 232 is provided at the third end 21 of the adjustment sleeve 23. When the adjustment sleeve 23 moves toward the adjustment portion 24 along the first direction X, the distance between the first boss 17 and the second boss 232 becomes increasingly closer. Because the orthographic projection of the first boss 17 on the first surface and the orthographic projection of the second boss 232 on the first surface at least partially overlap, when the first boss 17 and the second boss 232 finally abut against each other, the adjustment assembly 20 cannot move further, thereby preventing the adjustment assembly 20 from completely escaping from the inner cavity of the sleeve body 10 and affecting the integrity of the liquid flow sleeve 100.

[0110] In an embodiment of the present application, when installing the sleeve body 10 and the adjustment assembly 20, the outer wall of the adjustment portion 24 has not yet been installed with the limiting protrusion 246. First, the fourth end 22 of the adjustment assembly 20 is extended from the first end 11 of the sleeve body 10 into the interior of the sleeve body 10. After the fourth end 22 of the adjustment assembly 20 is extended from the second end 12 of the sleeve body 10, the limiting protrusion 246 is installed at the corresponding position of the outer wall of the adjustment portion 24.

[0111] Exemplarily, the limiting protrusion 246 can be welded to the outer wall of the adjusting portion 24; or the limiting protrusion 246 and the outer wall of the adjusting portion 24 can be connected by threads, for example, the limiting protrusion 246 can be a bolt, and the outer wall of the adjusting portion 24 has a corresponding threaded hole, so that the limiting protrusion 246 and the outer wall of the adjusting portion 24 can be threadedly connected; or the limiting protrusion 246 is bonded to the outer wall of the adjusting portion 24.

[0112] In some embodiments of the present application, the sleeve body 10 and the mounting assembly 30 can be manufactured separately and then connected together. For example, referring to Figures 3, 4, 6, and 7, the mounting assembly 30 is mounted on the first end 11 of the sleeve body 10. The outer wall of the sleeve body 10 has a circle of mounting grooves 18 at the first end 11. The mounting grooves 18 circumferentially surround the sleeve body 10. Referring to Figure 8, the inner wall of the mounting assembly 30, facing the end of the sleeve body 10, has a circle of first annular bosses 31, which are located within the mounting grooves 18.

[0113] In the embodiment of the present application, after the cannula body 10 and the mounting assembly 30 are installed, the first annular boss 31 is located within the mounting groove 18, preventing the cannula body 10 and the mounting assembly 30 from moving in the first direction X. This would prevent the extension of the knife rod from changing and affecting the surgical procedure. However, the cannula body 10 and the mounting assembly 30 are rotatable relative to each other, allowing the operator's viewing angle to be adjusted by rotating the cannula body 10 after the mounting assembly 30 is connected to the handle 200.

[0114] In some embodiments of the present application, when the first annular boss 31 is located in the mounting groove 18, the sleeve body 10 and the mounting assembly 30 may be interference fit, so that the sleeve body 10 and the mounting assembly 30 cannot be easily rotated. Only when a larger external force is applied can the sleeve body 10 and the mounting assembly 30 be rotated, so as to avoid the sleeve body 10 and the mounting assembly 30 from easily rotating during surgery, thereby affecting the surgery.

[0115] In other embodiments of the present application, a rubber ring or a silicone ring can be provided between the first annular boss 31 and the mounting groove 18, which can also prevent the pipe sleeve body 10 and the mounting assembly 30 from rotating easily. The pipe sleeve body 10 and the mounting assembly 30 can only rotate when a larger external force is applied.

[0116] 3 and 4 , the outer wall of the sleeve body 10 has a second annular boss 19 and a third annular boss 110 spaced apart along the first direction X, and a mounting groove 18 is formed between the second annular boss 19 and the third annular boss 110 .

[0117] In the embodiment of the present application, providing the second annular boss 19 and the third annular boss 110 on the outer side wall of the sleeve body 10 makes it easier to form the installation groove 18 and facilitates the installation between the sleeve body 10 and the installation assembly 30.

[0118] For example, the third annular boss 110 is first welded to the outer wall of the sleeve body 10, and then the first end 11 of the sleeve body 10 is extended into the mounting assembly 30 from the end of the mounting assembly 30 having the first annular boss 31, and then the second annular boss 19 is installed on the outer wall of the sleeve body 10 from the end of the mounting assembly 30 away from the first annular boss 31, thereby realizing the installation between the sleeve body 10 and the mounting assembly 30.

[0119] For example, the second annular boss 19 and the outer wall of the sleeve body 10 can be connected by welding; or the second annular boss 19 and the outer wall of the sleeve body 10 can be threadedly connected; or the second annular boss 19 and the outer wall of the sleeve body 10 can be interference fit.

[0120] For example, the third annular boss 110 and the outer side wall of the sleeve body 10 may be integrally formed.

[0121] 13 , patterns may be provided on the outer wall of the mounting assembly 30 so that the operator can operate the fluid pipe sleeve 100 stably without slipping.

[0122] In other embodiments of the present application, the sleeve body 10 and the mounting assembly 30 may be integrally formed.

[0123] 16 and 17 , one of the inner sidewall of the sleeve body 10 and the outer sidewall of the adjustment sleeve 23 has a guide groove 50 , which extends along the first direction X. The other of the inner sidewall of the sleeve body 10 and the outer sidewall of the adjustment sleeve 23 has a guide protrusion 60 movably located in the guide groove 50 .

[0124] Illustratively, the inner wall of the sleeve body 10 has a guide groove 50 , and the outer wall of the adjustment sleeve 23 has a guide protrusion 60 ; or, the outer wall of the adjustment sleeve 23 has a guide groove 50 , and the inner wall of the sleeve body 10 has a guide protrusion 60 .

[0125] In the embodiment of the present application, the guide protrusion 60 is movably positioned within the guide groove 50, preventing relative rotation between the inner sidewall of the sleeve body 10 and the adjustment sleeve 23. This maintains a fixed relative position between the sleeve body 10 and the adjustment assembly 20, thus preventing adverse effects on the surgical procedure. Furthermore, the guide groove 50 extends along the first direction X, allowing relative movement between the sleeve body 10 and the adjustment assembly 20 in the first direction X, thereby adjusting the length of the fluid flow sleeve 100.

[0126] In the embodiment of the present application, the guide protrusion 60 may be a long strip extending along the first direction X, or the guide protrusion 60 may be a cylindrical or square protrusion.

[0127] 13 , the adjustment assembly 20 includes a plurality of sub-adjustment assemblies 201 . The plurality of sub-adjustment assemblies 201 are connected via a connection assembly 40 , and any two adjacent sub-adjustment assemblies 201 are movably connected along a first direction X.

[0128] In the embodiment of the present application, sub-adjustment assemblies 201 are arranged, and any two adjacent sub-adjustment assemblies 201 are movably connected along the first direction X. This allows the adjustment assembly 20 to have a wider range of adjustable lengths. The more adjustable lengths the liquid flow tube sleeve 100 has, the more the lengths of the knife rod extending out of the liquid flow tube sleeve 100 can be adjusted, thereby extending the applicability of the liquid flow tube sleeve 100 to a wider range.

[0129] For example, the outer side wall of the sub-adjustment assembly 201 may be provided with a mounting groove identical to that on the sleeve body 10 so that the connecting assembly 40 can connect two adjacent sub-adjustment assemblies 20 .

[0130] 16 and 17 , a guide groove 50 may be arranged on the inner wall of the adjusting sleeve 23 of one of the two adjacent sub-adjusting components 201, and a guide protrusion 60 may be arranged on the outer wall of the adjusting sleeve 23 of the other sub-adjusting component 201, so that the two adjacent sub-adjusting components 201 cannot rotate relative to each other, thereby avoiding adverse effects on the operation.

[0131] An embodiment of the present application provides a medical ultrasonic scalpel. Figure 20 shows a schematic structural diagram of a medical ultrasonic scalpel provided in an embodiment of the present application. Referring to Figure 20 , the medical ultrasonic scalpel includes a fluid conduit 100, a handle 200, and a scalpel head 300. The handle 200 is connected to the mounting assembly 30 of the fluid conduit 100, and the scalpel head 300 is connected to the handle 200. The fluid conduit 100 is mounted on the scalpel head 300.

[0132] In some embodiments of the present application, the end of the handle 200 connected to the fluid conduit 100 has a mounting groove or hole, the central axis of which is coaxial with the central axis of the handle 200. The opening of the mounting groove or hole extends through the end of the handle 200 connected to the fluid conduit 100, the outer wall of the mounting groove or hole has external threads, and the inner wall of the mounting groove or hole has internal threads. The outer wall of the blade head 300 has external threads, and the inner wall of the fluid conduit 100 has internal threads. The external threads of the blade head 300 are threadedly connected to the internal threads of the handle 200, and the internal threads of the fluid conduit 100 are threadedly connected to the external threads of the handle 200.

[0133] In other embodiments of the present application, the fluid tube sleeve 100 and the handle 200 can be connected by an interference fit, and the blade head 300 and the handle 200 can be connected by the above-mentioned threaded connection; or the fluid tube sleeve 100 and the handle 200 can be connected by the above-mentioned threaded connection, and the blade head 300 and the handle 200 can be connected by an interference fit; or both the fluid tube sleeve 100 and the handle 200 and the blade head 300 and the handle 200 can be connected by an interference fit.

[0134] The medical ultrasonic scalpel provided in the embodiment of the present application can adjust the cutting depth of the medical ultrasonic scalpel by adjusting the length of the liquid flow tube sleeve 100 and thereby adjusting the exposed length of the scalpel head 300, so that the medical ultrasonic scalpel can achieve different cutting depths and has a wider range of applications.

[0135] An embodiment of the present application provides a robot-assisted ultrasonic scalpel system, which includes a robot-assisted surgical device and the medical ultrasonic scalpel in the above embodiment. The robot-assisted surgical device is connected to the blade head in the medical ultrasonic scalpel to control the movement of the blade head.

[0136] It should be understood that in this specification, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships or dimensions based on the orientations or positional relationships or dimensions shown in the accompanying drawings, and these terms are used only for the convenience of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of this application.

[0137] Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature specified as "first," "second," or "third" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0138] In this application, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0139] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0140] This specification provides many different embodiments or examples that can be used to implement the present application. It should be understood that these different embodiments or examples are purely exemplary and are not intended to limit the scope of protection of the present application in any way. Those skilled in the art can conceive of various changes or replacements based on the disclosure of the specification of the present application, all of which should be encompassed within the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection defined by the appended claims.

Claims

1. A fluid flow tube sleeve, the fluid flow tube sleeve (100) comprising: A sleeve body (10) extending along a first direction X, the sleeve body (10) having opposite first (11) and second (12) ends arranged along the first direction X; An adjustment assembly (20) having opposite third (21) and fourth (22) ends arranged along the first direction X; A mounting assembly (30) connected to the first end (11) of the sleeve body (10), the mounting assembly (30) being for connection to a handle; A connection assembly (40) connecting the sleeve body (10) and the adjustment assembly (20); Wherein, the adjustment assembly (20) is movable along the first direction X to change the maximum distance between the end of the second end (12) and the end of the fourth end (22) along the first direction X.

2. The fluid flow tube sleeve according to claim 1, wherein, The adjustment assembly (20) comprises: An adjustment sleeve (23), the outer sidewall of the adjustment sleeve (23) being in contact with the inner sidewall of the sleeve body (10), the third end (21) being located on the adjustment sleeve (23); An adjustment portion (24) connected to the adjustment sleeve (23), the adjustment portion (24) and the third end (21) being respectively located at opposite ends of the adjustment sleeve (23) along the first direction X, the fourth end (22) being located at the opposite end of the adjustment portion (24) connected to the adjustment sleeve (23), and the outer sidewall of the adjustment portion (24) having a plurality of fixed card slots (241) arranged at intervals along the first direction X; One end of the connection assembly (40) is connected to the outer sidewall of the sleeve body (10), and the other end of the connection assembly (40) has a fixed protrusion (41) movably located in the fixed card slots (241). Wherein, the cooperation of the fixed protrusion (41) and the fixed card slots (241) is configured such that when the fixed protrusion (41) is located in different fixed card slots (241) among the plurality of fixed card slots (241), the maximum distance between the end of the second end (12) and the end of the fourth end (22) along the first direction X is different.

3. The fluid flow tube sleeve according to claim 2, wherein, The outer sidewall of the sleeve body (10) has a fixed groove (13), and opposite sidewalls of the fixed groove (13) have first mounting holes (14). The connection assembly (40) comprises: A torsion spring (42) located in the fixed groove (13), one torsion arm of the torsion spring (42) abutting against the bottom surface of the fixed groove (13); A button buckle (43), the fixed protrusion (41) being connected to the end of the button buckle (43), the other end of the button buckle (43) opposite to the fixed protrusion (41) having a button portion (431), and the button buckle (43) having a second mounting hole (432) located between the fixed protrusion (41) and the button portion (431); The connecting shaft (44) sequentially passes through one of the two first mounting holes (14), the second mounting hole (432), the central hole of the torsion spring (42), and the other of the two first mounting holes (14). Wherein, the other torsion arm of the torsion spring (42) abuts against the surface of the button portion (431) facing the fixed groove (13).

4. The fluid flow tube sleeve according to claim 3, wherein The fixed clamping groove (241) includes opposite first surface (2411) and second surface (2412), and the included angle between the first surface (2411) and the second surface (2412) is an acute angle. The fixed protrusion (41) includes opposite third surface (411) and fourth surface (412). When the fixed protrusion (41) is located in the fixed clamping groove (241), the third surface (411) is attached to the first surface (2411), and the fourth surface (412) is attached to the second surface (2412).

5. The fluid flow tube sleeve according to claim 4, wherein, The first surface (2411) is perpendicular to the first direction X. For the first surface (2411) and the second surface (2412) in the same fixed clamping groove (241), the second surface (2412) is close to the third end (21), and the first surface (2411) is close to the fourth end (22).

6. The fluid flow tube sleeve according to claim 4 or 5, wherein The included angles between the first surface (2411) and the second surface (2412) and the first direction X are both greater than 30 degrees.

7. The fluid flow tube sleeve according to any one of claims 3 to 6, wherein The extending direction of the connecting shaft (44) is perpendicular to the first direction X.

8. The fluid flow tube sleeve according to any one of claims 3 to 7, wherein The extending direction of the connecting shaft (44) is parallel to the first direction X, and the side wall of the sleeve body (10) has a fixed through hole (15) for the fixed protrusion (41) to extend into the inner cavity of the sleeve body (10).

9. The fluid flow tube sleeve according to any one of claims 2 to 8, wherein The adjusting portion (24) includes a first arc-shaped adjusting plate (242), the first arc-shaped adjusting plate (242) extends along the first direction X, one end of the first arc-shaped adjusting plate (242) along the first direction X is connected to the adjusting sleeve (23), and the other end of the first arc-shaped adjusting plate (242) along the first direction X is a free end, or The adjusting portion (24) includes a connecting pipe (243) and a plurality of second arc-shaped adjusting plates (244), the plurality of second arc-shaped adjusting plates (244) all extend along the first direction X, one end of the plurality of second arc-shaped adjusting plates (244) along the first direction X is connected to the adjusting sleeve (23), the other end of the plurality of second arc-shaped adjusting plates (244) along the first direction X is connected to the connecting pipe (243), the plurality of second arc-shaped adjusting plates (244) are arranged at intervals in the circumferential direction of the adjusting sleeve (23), and the fixed clamping groove (241) is located on at least one of the plurality of second arc-shaped adjusting plates (244); or The adjusting portion (24) includes a cylindrical pipe (245), and the cylindrical pipe (245) extends along the first direction X.

10. The fluid flow tube sleeve according to any one of claims 2 to 9, wherein, The outer wall of the adjusting part (24) has a limiting protrusion (246). The limiting protrusion (246) and the plurality of fixing card slots (241) are arranged along the first direction X, and the limiting protrusion (246) is located on one side of the plurality of fixing card slots (241) close to the fourth end (22).

11. The fluid flow tube sleeve according to any one of claims 2 to 10, wherein, The inner wall of the sleeve body (10) has a first plane (16). The first plane (16) is parallel to the first direction X, and the first plane (16) extends to the end face of the second end (12). The outer wall of the adjusting sleeve (23) has a second plane (231), and the second plane (231) extends to the end face of the other end of the adjusting sleeve (23) opposite to the third end (21). The first plane (16) is in contact with the second plane (231).

12. The fluid flow tube sleeve according to claim 11, wherein, The inner wall of the sleeve body (10) has a first boss (17) protruding into the inner cavity of the sleeve body (10). The surface of the first boss (17) facing the inner cavity of the sleeve body (10) is the first plane (16); Along the direction perpendicular to the second plane (231), the height H1 of the other end of the adjusting sleeve (23) opposite to the third end (21) is less than the height H2 of the third end (21), so that a second boss (232) is formed at the third end (21) of the adjusting sleeve (23). The second boss (232) is located on one side of the first boss (17) away from the second end (12); The orthographic projection of the first boss (17) on the first surface at least partially coincides with the orthographic projection of the second boss (232) on the first surface. The first surface is perpendicular to the first direction X.

13. The fluid flow tube sleeve according to any one of claims 1 to 12, wherein, The mounting assembly (30) is sleeved on the first end (11) of the sleeve body (10). The outer wall of the sleeve body (10) has a mounting groove (18) at the first end (11). The mounting groove (18) surrounds the sleeve body (10) along the circumferential direction of the sleeve body (10); The inner wall of one end of the mounting assembly (30) facing the sleeve body (10) has a first annular boss (31). The first annular boss (31) is located in the mounting groove (18).

14. The fluid flow tube sleeve according to claim 13, wherein, The outer wall of the sleeve body (10) has a second annular boss (19) and a third annular boss (110) arranged at intervals along the first direction X. The mounting groove (18) is formed between the second annular boss (19) and the third annular boss (110).

15. The fluid flow tube sheath according to any one of claims 2 to 12, wherein, One of the inner wall of the sleeve body (10) and the outer wall of the adjusting sleeve (23) has a guiding groove (50). The guiding groove (50) extends along the first direction X. The other of the inner wall of the sleeve body (10) and the outer wall of the adjusting sleeve (23) has a guiding protrusion (60). The guiding protrusion (60) is movably located in the guiding groove (50).

16. The fluid flow tube sleeve according to any one of claims 1 to 15, wherein The adjusting assembly (20) includes a plurality of sub-adjusting assemblies (201), the plurality of sub-adjusting assemblies (201) are connected by the connecting assembly (40), and any two adjacent sub-adjusting assemblies (201) are movably connected along the first direction X.

17. A medical ultrasonic scalpel, comprising: The liquid flow tube sleeve (100) according to any one of claims 1 to 16; A handle (200) connected to the mounting assembly (30) of the liquid flow tube sleeve (100); A tool tip (300) connected to the handle (200), the tool tip (300) and the liquid flow tube sleeve (100) are both connected to the same end of the handle (200), and the liquid flow tube sleeve (100) is sleeved on the tool tip (300).

18. A robot-assisted ultrasonic scalpel system, the robot-assisted ultrasonic scalpel system comprising a robot-assisted surgical device and the medical ultrasonic scalpel according to claim 17; The robot-assisted surgical device is connected to the tool tip in the medical ultrasonic scalpel to control the movement of the tool tip.

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