Minimally invasive surgery drill with disinfection structure

Abstract

The invention discloses a minimally invasive surgery drill with a disinfection structure, and belongs to the field of surgery drills, the minimally invasive surgery drill comprises a base, the top end face of the base is fixedly connected with a mechanical arm assembly, and one end of the mechanical arm assembly is fixedly connected with a double-shaft position adjusting mechanism through a connecting seat; two parallel L-shaped fixing plates are arranged on the double-shaft position adjusting mechanism, the top ends of the L-shaped fixing plates are rotationally connected with L-shaped supporting plates through rotating pieces, an operation drill mechanism is arranged on the side face of one L-shaped supporting plate, a disinfection mechanism is arranged on the side face of the other L-shaped supporting plate, and the disinfection mechanism is connected with the operation drill mechanism. The device specifically comprises a barrel fixed to the side face of an L-shaped fixing plate, a disinfection cavity is formed in the barrel, and a membrane matched with the disinfection cavity is movably connected into the disinfection cavity. According to the full-automatic drilling device, full-automatic drilling can be conducted after the drilling point is determined, manual handheld drilling is not needed, and therefore the situation that the drilling effect is affected by hand shaking is avoided, the automation degree is high, and use is convenient.

Description

Technical Field

[0001] The invention relates to a surgical drill, in particular to a minimally invasive surgical drill with a disinfection structure. Background Art

[0002] Medical devices refer to instruments, equipment, appliances, in vitro diagnostic reagents and calibrators, materials and other similar or related items used directly or indirectly on the human body, including the required computer software. The orthopedic spine minimally invasive surgical drill is a part of the orthopedic spine minimally invasive surgical instruments and is a type of medical device.

[0003] Existing minimally invasive surgical drills are mostly hand-held by medical staff, who drill based on their own medical experience. This drilling method requires the medical staff to keep their wrists raised for a long time during the drilling process to ensure the stability of the drill, which places very high demands on medical staff and the drilling effect can easily be affected by hand shaking.

[0004] Therefore, those skilled in the art provide a minimally invasive surgical drill with a sterilization structure to solve the problems raised in the above background technology. Summary of the invention

[0005] The purpose of the present invention is to provide a minimally invasive surgical drill with a disinfection structure, which can perform fully automatic drilling after determining the drilling point, does not require manual hand-held drilling, thereby avoiding the drilling effect being affected by hand shaking, has a high degree of automation, and is easy to use, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A minimally invasive surgical drill with a disinfection structure comprises a base, the top surface of the base is fixedly connected to a mechanical arm assembly, and one end of the mechanical arm assembly is fixedly connected to a dual-axis positioning mechanism via a connecting seat; the dual-axis positioning mechanism is provided with two parallel L-shaped fixing plates, and the top end of the L-shaped fixing plate is rotatably connected to an L-shaped supporting plate via a rotating member, a surgical drill mechanism is provided on the side of one of the L-shaped supporting plates, and a disinfection mechanism is provided on the side of the other L-shaped supporting plate.

[0008] As a further scheme of the present invention: the disinfection mechanism specifically includes: a cylinder fixed on the side of the L-shaped fixing plate, a disinfection chamber is opened inside the cylinder, and a diaphragm matching the disinfection chamber is movably connected inside the disinfection chamber, a notch connected to the disinfection chamber is opened at one end of the cylinder, and an air inlet connected to the disinfection chamber is opened at the top of the outer side surface of the cylinder, an exhaust hole connected to the disinfection chamber is opened at the bottom end of the outer side surface of the cylinder, and the exhaust hole is connected to an external vacuum pumping equipment, the air inlet is connected to an external high-pressure steam source, the diaphragm is located between the exhaust hole and the air inlet, and a frustum is fixedly connected to a side of the diaphragm close to the notch, the frustum and the diaphragm are jointly provided with a through hole, and a spring column is sleeved on the outside of the frustum, one end of the spring column is fixedly connected to the diaphragm, and the other end of the spring column is fixedly connected to the inner wall of the disinfection chamber.

[0009] As a further solution of the present invention: the rotating part specifically includes: a fixing seat fixed on the top end surface of the L-shaped fixing plate, the top end of the fixing seat is fixedly connected with a rotating sleeve, and the rotating sleeve is rotatably connected with a rotating body, the center of the bottom end surface of the rotating body is fixedly connected with an axle rod, and the bottom end of the axle rod passes through the L-shaped fixing plate and is fixedly connected with a handle, the top end surface of the rotating body is fixedly connected with a dial by bolts, and the top end surface of the dial is fixedly connected to the L-shaped support plate, the outer side surface of the rotating sleeve is threadedly connected with a positioning pin, and one end of the positioning pin is screwed into the interior of the rotating sleeve and contacts with the rotating body.

[0010] As a further solution of the present invention: a pointer is provided on the outer side of the rotating sleeve, and an arrow of the pointer points upward to the scale of the dial.

[0011] As a further solution of the present invention: the surgical drill mechanism specifically includes: a mounting seat fixed on the side of the corresponding L-shaped support plate, a connecting head fixedly connected to the center of one side of the mounting seat, and a rotating motor is provided inside the connecting head, and the output shaft of the rotating motor is fixedly connected to the drilling tool.

[0012] As a further solution of the present invention: the robotic arm assembly specifically includes: a sleeve fixed on the top surface of the base, a main shaft is rotatably connected inside the sleeve, and a first rotating arm is rotatably connected to the top of the main shaft, one end of the first rotating arm is rotatably connected to the second rotating arm, and a cylinder is provided between the second rotating arm and the main shaft, the output shaft of the cylinder is rotatably connected to the second rotating arm, and one end of the cylinder is rotatably connected to the outer side surface of the main shaft, and the end of the second rotating arm away from the first rotating arm is fixedly connected to the dual-axis positioning mechanism through a connecting seat.

[0013] As a further solution of the present invention: a first support rod is provided at the position where the main shaft contacts the first rotating arm, and a second support rod is provided at the position where the first rotating arm contacts the second rotating arm, and a pull rod is rotatably connected between the first support rod and the second support rod.

[0014] As a further solution of the present invention: a fastening pin is threadedly connected to the outer side surface of the sleeve, and one end of the fastening pin passes through the sleeve and abuts against the outer side surface of the main shaft.

[0015] As a further solution of the present invention: the double-axis positioning mechanism specifically includes: a vertical driving box fixed to the side of the connecting seat, a vertical groove is opened in the middle position of one side of the vertical driving box, and a lead screw is rotatably connected inside the vertical groove, a first motor is fixedly connected to the top of the vertical driving box, and the bottom output shaft of the first motor passes through the vertical driving box and is fixedly connected to the lead screw, the external thread connection of the lead screw is connected to a lifting block matching the vertical groove, and one side of the lifting block is fixedly connected to a transverse driving box, a transverse groove is opened in the middle position of one side of the transverse driving box, and a bidirectional threaded rod is rotatably connected inside the transverse groove, a second motor is fixedly connected to one end of the transverse driving box, and the output shaft of the second motor passes through the transverse driving box and is fixedly connected to the bidirectional threaded rod, the external thread connection of the bidirectional threaded rod is connected to two parallel moving blocks, and the two moving blocks are respectively fixedly connected to two L-shaped fixing plates.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This application can perform fully automatic drilling after determining the drilling point, without the need for manual hand-held drilling, thus avoiding the impact of hand shaking on the drilling effect. It has a high degree of automation and is easy to use.

[0018] 2. The disinfection mechanism provided in the present application can not only disinfect the drilling tool by high-pressure steam, but also push the diaphragm to move when the high-pressure steam is introduced, thereby completing the removal of impurities and disinfection of the drilling tool on the other side of the diaphragm.

[0019] 3. After the drill tool is inserted into the cylinder, the cone on the diaphragm can remove the debris attached to the surface of the drill tool. Then, the drill tool is extended into the other side of the diaphragm to be sterilized by high-pressure steam. While the high-pressure steam is introduced, the air is pumped out through the exhaust hole to complete the cycle and absorb the debris under the shovel. The diaphragm effectively prevents debris from contaminating the cleaned drill tool area.

[0020] 4. The setting of the rotating part facilitates the rotation and adjustment of the angle of the L-shaped support plate, which not only facilitates the adjustment of the drilling direction during the drilling process, but also enables the drill and the barrel to face the staff for easy maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A structural schematic diagram of a minimally invasive surgical drill with a sterilization structure;

[0022] Figure 2 A schematic diagram of the structure of a mechanical arm assembly in a minimally invasive surgical drill with a sterilization structure;

[0023] Figure 3It is a structural schematic diagram of a dual-axis positioning mechanism in a minimally invasive surgical drill with a sterilization structure;

[0024] Figure 4 A combined view of a vertical drive box and a horizontal drive box in a minimally invasive surgical drill with a sterilization structure;

[0025] Figure 5 A schematic diagram of the structure of a rotating part in a minimally invasive surgical drill with a sterilization structure;

[0026] Figure 6 A schematic diagram of an initial state of a disinfection mechanism in a minimally invasive surgical drill having a disinfection structure;

[0027] Figure 7 This is a schematic diagram of a minimally invasive surgical drill with a sterilization structure after high-pressure steam is introduced into the sterilization mechanism.

[0028] In the figure: 1, base; 2, sleeve; 3, main shaft; 4, fastening pin; 5, first rotating arm; 6, second rotating arm; 7, cylinder; 8, first support rod; 9, second support rod; 10, pull rod; 11, connecting seat; 12, vertical drive box; 13, vertical slot; 14, lead screw; 15, first motor; 16, lifting block; 17, horizontal drive box; 18, horizontal slot; 19, two-way threaded rod; 20, second motor; 21, moving block; 22, L-shaped fixing plate; 23. L-shaped supporting plate; 24. handle; 25. shaft; 26. fixing seat; 27. rotating sleeve; 28. rotating body; 29. ​​positioning pin; 30. dial; 31. mounting seat; 32. connector; 33. rotating motor; 34. drilling tool; 35. cylinder; 36. disinfection chamber; 37. air inlet; 38. exhaust hole; 39. notch; 40. diaphragm; 41. cone; 42. through hole; 43. spring column. DETAILED DESCRIPTION

[0029] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0030] See also Figures 1 to 7 In an embodiment of the present invention, a minimally invasive surgical drill with a disinfection structure includes a base 1, the top surface of the base 1 is fixedly connected to a mechanical arm assembly, and one end of the mechanical arm assembly is fixedly connected to a dual-axis positioning mechanism through a connecting seat 11; two parallel L-shaped fixing plates 22 are provided on the dual-axis positioning mechanism, and the top of the L-shaped fixing plate 22 is rotatably connected to an L-shaped support plate 23 through a rotating member, a surgical drilling mechanism is provided on the side of one L-shaped support plate 23, and a disinfection mechanism is provided on the side of the other L-shaped support plate 23. The present application can perform fully automatic drilling after determining the drilling point, without the need for manual hand-held drilling, thereby avoiding the influence of hand shaking on the drilling effect, with a high degree of automation and easy to use.

[0031] In this embodiment, the disinfection mechanism specifically includes: a cylinder 35 fixed to the side of the L-shaped fixing plate 22, a disinfection chamber 36 is provided inside the cylinder 35, and a diaphragm 40 matching with the disinfection chamber 36 is movably connected inside the disinfection chamber 36, a notch 39 connected to the disinfection chamber 36 is provided at one end of the cylinder 35, and an air inlet 37 connected to the disinfection chamber 36 is provided at the top of the outer side of the cylinder 35, and an air suction hole 33 connected to the disinfection chamber 36 is provided at the bottom of the outer side of the cylinder 35. 8, and the air extraction hole 38 is connected to the external vacuum extraction equipment, the air inlet 37 is connected to the external high-pressure steam source, the diaphragm 40 is located between the air extraction hole 38 and the air inlet 37, and the diaphragm 40 is fixedly connected with a frustum 41 on one side close to the notch 39, the frustum 41 and the inside of the diaphragm 40 are jointly provided with a through hole 42, and the outside of the frustum 41 is sleeved with a spring column 43, one end of the spring column 43 is fixedly connected to the diaphragm 40, and the other end of the spring column 43 is fixedly connected to the inner wall of the disinfection chamber 36. The disinfection mechanism set in the present application can not only disinfect the drilling tool 34 by high-pressure steam, but also push the diaphragm 40 to move when the high-pressure steam is introduced, so as to complete the removal of impurities and disinfection of the drilling tool 34 on the other side of the diaphragm 40. After the drill tool 34 is inserted into the cylinder 35, the cone 41 on the diaphragm 40 can remove the debris attached to the surface of the drill tool 34. Then, the drill tool 34 is extended into the other side of the diaphragm 40 to be sterilized by high-pressure steam. While the high-pressure steam is introduced, the exhaust hole 38 exhausts air to complete the cycle and absorbs the debris under the shovel. The diaphragm 40 effectively prevents the debris from contaminating the cleaned area of ​​the drill tool 34.

[0032] In this embodiment: the rotating member specifically includes: a fixed seat 26 fixed on the top surface of the L-shaped fixed plate 22, a rotating sleeve 27 is fixedly connected to the top of the fixed seat 26, and a rotating body 28 is rotatably connected inside the rotating sleeve 27, a shaft 25 is fixedly connected to the center of the bottom end surface of the rotating body 28, and the bottom end of the shaft 25 passes through the L-shaped fixed plate 22 and is fixedly connected to the handle 24, the top surface of the rotating body 28 is fixedly connected to the dial 30 by bolts, and the top surface of the dial 30 is fixedly connected to the L-shaped support plate 23, and the outer side surface of the rotating sleeve 27 is threadedly connected to a positioning pin 29, and one end of the positioning pin 29 is screwed into the inside of the rotating sleeve 27 and contacts the rotating body 28. The setting of the rotating member is convenient for rotating and adjusting the angle of the L-shaped support plate 23, which is not only convenient for adjusting the drilling direction during the drilling process, but also allows the drilling tool 34 and the barrel 35 to face the staff for convenient maintenance.

[0033] In this embodiment, a pointer is provided on the outer side of the rotating sleeve 27, and the arrow of the pointer points upward to the scale of the dial 30. The setting of the pointer facilitates understanding the rotation angle of the L-shaped support plate 23.

[0034] In this embodiment, the surgical drill mechanism specifically includes: a mounting seat 31 fixed to the side of the corresponding L-shaped support plate 23, a connector 32 is fixedly connected to the center of one side of the mounting seat 31, and a rotating motor 33 is provided inside the connector 32, and a drilling tool 34 is fixedly connected to the output shaft of the rotating motor 33. The rotating motor 33 can drive the drilling tool 34 to rotate to complete drilling.

[0035] In this embodiment: the mechanical arm assembly specifically includes: a sleeve 2 fixed to the top surface of the base 1, a main shaft 3 is rotatably connected inside the sleeve 2, and a first rotating arm 5 is rotatably connected to the top of the main shaft 3, one end of the first rotating arm 5 is rotatably connected to the second rotating arm 6, and a cylinder 7 is provided between the second rotating arm 6 and the main shaft 3, the output shaft of the cylinder 7 is rotatably connected to the second rotating arm 6, and one end of the cylinder 7 is rotatably connected to the outer side of the main shaft 3, and the end of the second rotating arm 6 away from the first rotating arm 5 is fixedly connected to the dual-axis positioning mechanism through the connecting seat 11. The mechanical arm assembly is used to adjust the position of the drilling tool 34.

[0036] In this embodiment: a first support rod 8 is provided at a position where the main shaft 3 contacts the first rotating arm 5, and a second support rod 9 is provided at a position where the first rotating arm 5 contacts the second rotating arm 6, and a pull rod 10 is rotatably connected between the first support rod 8 and the second support rod 9. The arrangement of the pull rod 10, the first support rod 8 and the second support rod 9 can improve the stability of the first rotating arm 5 and the second rotating arm 6 when they rotate.

[0037] In this embodiment, a fastening pin 4 is threadedly connected to the outer side of the sleeve 2, and one end of the fastening pin 4 passes through the sleeve 2 and abuts against the outer side of the main shaft 3. The fastening pin 4 is used to fix the position of the main shaft 3 in the sleeve 2.

[0038] In this embodiment: the double-axis positioning mechanism specifically includes: a vertical driving box 12 fixed to the side of the connecting seat 11, a vertical groove 13 is opened in the middle position of one side of the vertical driving box 12, and a lead screw 14 is rotatably connected inside the vertical groove 13, a first motor 15 is fixedly connected to the top of the vertical driving box 12, and the bottom output shaft of the first motor 15 passes through the vertical driving box 12 and is fixedly connected to the lead screw 14, the lead screw 14 is externally threadedly connected to a lifting block 16 matching the vertical groove 13, and one side of the lifting block 16 is fixedly connected to a transverse driving box 17, a transverse groove 18 is opened in the middle position of one side of the transverse driving box 17, and a bidirectional threaded rod 19 is rotatably connected inside the transverse groove 18, a second motor 20 is fixedly connected to one end of the transverse driving box 17, and the output shaft of the second motor 20 passes through the transverse driving box 17 and is fixedly connected to the bidirectional threaded rod 19, the bidirectional threaded rod 19 is externally threadedly connected to two parallel moving blocks 21, and the two moving blocks 21 are respectively fixedly connected to two L-shaped fixing plates 22. The dual-axis positioning mechanism can further adjust the position of the drilling tool 34 .

[0039] The working principle of the present invention is: when in use, first determine the position of the patient to be drilled, then limit the patient's body, and then adjust the drilling tool 34 of the minimally invasive surgical drill to the position to be drilled, and then start the drilling tool 34 to rotate the hole. Before drilling, the rotary motor 33 of the drilling tool 34 needs to be connected to the connector 32 of the mounting seat 31, and after the drilling tool 34 is installed, the drilling tool 34 needs to be disinfected. Since the minimally invasive surgical drill of the present application has a disinfection mechanism, no additional disinfection equipment is required to complete the disinfection. The specific disinfection process is as follows: the second motor 20 drives the bidirectional threaded rod 19 to rotate, and the two moving blocks 21 slowly approach each other in the transverse groove 18 along the bidirectional threaded rod 19. During the process, the L-shaped fixing plate 22 and the L-shaped supporting plate 23 move synchronously, thereby driving the drill 34 to slowly insert into the disinfection cavity 36 of the cylinder 35 from the notch 39. When the drill 34 is inserted into the disinfection cavity 36, the first thing that contacts the end of the drill 34 is the cone 41. The end of the drill 34 passes through the diaphragm 40 and the cone 41 from the through hole 42. During this process, the cone 41 shovels the debris attached to the surface of the drill 34 and drops it to the bottom end surface of the disinfection cavity 36 on one side of the diaphragm 40. After contacting each other, the bidirectional threaded rod 19 stops rotating, and the drill 34 is now completely inserted into the disinfection chamber 36. At the same time, an external high-pressure steam source introduces high-pressure steam into the disinfection chamber 36 through the air inlet 37, and an external vacuum equipment extracts air in the disinfection chamber 36 through the exhaust hole 38, which allows high-pressure steam to be continuously introduced and exported in the disinfection chamber 36 to complete the cycle. During this process, the pressure on one side of the diaphragm 40 decreases due to vacuum extraction, and the pressure on the other side increases due to the filling of high-pressure steam, causing the diaphragm 40 to slowly move to the side close to the slot 39. During this process, the spring column 43 is compressed. Finally, the diaphragm 40 moves to the middle position of the exhaust hole 38 to achieve balance. It should be noted that the exhaust hole 38 extracts air on one side of the diaphragm 40 in the initial stage of exhaust. During the process, the debris falling on the bottom end surface of the disinfection chamber 36 on one side of the diaphragm 40 is also sucked away. As the diaphragm 40 moves to the middle position of the exhaust hole 38, the exhaust hole 38 not only extracts the high-pressure steam on the other side of the diaphragm 40 to complete the cycle, but also extracts the debris on the surface of the drill tool 34 shoveled off by the movement of the diaphragm 40 and the cone 41. During the whole process, the part of the drill tool 34 that has completed the decontamination is separated from the part that has not completed the decontamination, and the part that has completed the decontamination is disinfected, while the part that has not completed the decontamination is not disinfected to avoid debris affecting the disinfection environment. As the disinfection progresses, the part that has not completed the decontamination is driven to complete the decontamination and be disinfected, and the removed debris is also sucked away in an orderly manner to avoid polluting the disinfection environment.

[0040] After the drilling tool 34 is disinfected, the second motor 20 runs in the reverse direction to drive the drilling tool 34 to separate from the barrel 35. Then, the drilling tool 34 is adjusted to rotate 180 degrees through the rotating part. Specifically, the positioning pin 29 is loosened, and the handle 24 is turned. The handle 24 drives the rotating body 28 to rotate through the shaft 25, and then drives the dial 30 and the L-shaped support plate 23 to rotate. After the angle is adjusted, the positioning pin 29 is tightened. It should be noted that the setting of the rotating part is not only convenient for adjusting the drilling direction during the drilling process, but also can face the drilling tool 34 and the barrel 35 for easy maintenance by the staff. After the drilling tool 34 completes the angle adjustment, the second motor 20 drives the two moving blocks 21 away from each other, so that the drilling tool 34 extends outward. At the same time, the rotating motor 33 runs to drive the drilling tool 34 to rotate. The extended drilling tool 34 drills into the patient's body along the previously determined position to be drilled until the drilling work is completed. The whole process does not require manual hand-held drilling, thereby avoiding the drilling effect affected by hand shaking. The degree of automation is high and it is easy to use.

[0041] It should be noted that the position of the drilling tool 34 is adjusted through the mechanical arm assembly and the dual-axis positioning mechanism, wherein the operating principle of the mechanical arm assembly is: the cylinder 7 operates to extend and retract its output shaft, thereby driving the second rotating arm 6 and the first rotating arm 5 to rotate, thereby changing the position of the drilling tool 34 on the first vertical plane. The operating principle of the dual-axis positioning mechanism is: the first motor 15 operates to drive the lead screw 14 to rotate, and the lifting block 16 slowly rises and falls along the lead screw 14 in the vertical slot 13, thereby changing the height of the drilling tool 34, and the second motor 20 operates to change the extension length of the drilling tool 34, and finally changes the position of the drilling tool 34 on the second vertical plane, wherein the second vertical plane is perpendicular to the first vertical plane.

[0042] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

[0043] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A minimally invasive surgical drill with a disinfection structure, characterized in that: It comprises a base (1), the top surface of the base (1) being fixedly connected to a mechanical arm assembly, and one end of the mechanical arm assembly being fixedly connected to a dual-axis positioning mechanism via a connecting seat (11); The dual-axis positioning mechanism is provided with two parallel L-shaped fixing plates (22), and the top end of the L-shaped fixing plate (22) is rotatably connected to an L-shaped supporting plate (23) via a rotating member, a surgical drill mechanism is provided on the side of one of the L-shaped supporting plates (23), and a disinfection mechanism is provided on the side of the other L-shaped supporting plate (23).

2. A minimally invasive surgical drill with a sterilization structure according to claim 1, characterized in that: The disinfection mechanism specifically comprises: a cylinder (35) fixed on the side of the L-shaped fixing plate (22), a disinfection cavity (36) is provided inside the cylinder (35), and a diaphragm (40) matching the disinfection cavity (36) is movably connected inside the disinfection cavity (36), a notch (39) connected to the disinfection cavity (36) is provided at one end of the cylinder (35), an air inlet (37) connected to the disinfection cavity (36) is provided at the top of the outer side surface of the cylinder (35), an air suction hole (38) connected to the disinfection cavity (36) is provided at the bottom of the outer side surface of the cylinder (35), and the air suction hole (38) is provided. (38) is connected to an external vacuum pumping device, the air inlet (37) is connected to an external high-pressure steam source, the diaphragm (40) is located between the air extraction hole (38) and the air inlet (37), and a frustum (41) is fixedly connected to a side of the diaphragm (40) close to the notch (39), the frustum (41) and the diaphragm (40) are jointly provided with a through hole (42), and a spring column (43) is sleeved on the outside of the frustum (41), one end of the spring column (43) is fixedly connected to the diaphragm (40), and the other end of the spring column (43) is fixedly connected to the inner wall of the disinfection chamber (36).

3. A minimally invasive surgical drill with a sterilization structure according to claim 1 or 2, characterized in that: The rotating member specifically comprises: a fixing seat (26) fixed on the top surface of the L-shaped fixing plate (22); the top of the fixing seat (26) is fixedly connected to a rotating sleeve (27); and the rotating sleeve (27) is rotatably connected to a rotating body (28); the center of the bottom end surface of the rotating body (28) is fixedly connected to a shaft rod (25); and the bottom end of the shaft rod (25) passes through the L-shaped fixing plate (22) and is fixedly connected to a handle (24); the top surface of the rotating body (28) is fixedly connected to a dial (30) by bolts, and the top surface of the dial (30) is fixedly connected to the L-shaped supporting plate (23); the outer side surface of the rotating sleeve (27) is threadedly connected to a positioning pin (29), and one end of the positioning pin (29) is screwed into the inside of the rotating sleeve (27) and contacts the rotating body (28).

4. The minimally invasive surgical drill with a disinfection structure according to claim 3, characterized in that: A pointer is provided on the outer side of the rotating sleeve (27), and the arrow of the pointer points upward to the scale of the dial (30).

5. The minimally invasive surgical drill with a sterilization structure according to claim 1, characterized in that: The surgical drill mechanism specifically comprises: a mounting seat (31) fixed on the side of the corresponding L-shaped support plate (23); a connector (32) is fixedly connected to the center of one side of the mounting seat (31); a rotating motor (33) is provided inside the connector (32); and a drilling tool (34) is fixedly connected to the output shaft of the rotating motor (33).

6. The minimally invasive surgical drill with a sterilization structure according to claim 1, characterized in that: The mechanical arm assembly specifically comprises: a sleeve (2) fixed on the top surface of a base (1), the sleeve (2) being rotatably connected to a main shaft (3) inside, and the top of the main shaft (3) being rotatably connected to a first rotating arm (5), one end of the first rotating arm (5) being rotatably connected to a second rotating arm (6), and a cylinder (7) being provided between the second rotating arm (6) and the main shaft (3), the output shaft of the cylinder (7) being rotatably connected to the second rotating arm (6), and one end of the cylinder (7) being rotatably connected to the outer surface of the main shaft (3), and the end of the second rotating arm (6) away from the first rotating arm (5) being fixedly connected to a dual-axis positioning mechanism via a connecting seat (11).

7. The minimally invasive surgical drill with a sterilization structure according to claim 6, characterized in that: A first support rod (8) is provided at a position where the main shaft (3) contacts the first rotating arm (5), and a second support rod (9) is provided at a position where the first rotating arm (5) contacts the second rotating arm (6); a pull rod (10) is rotatably connected between the first support rod (8) and the second support rod (9).

8. The minimally invasive surgical drill with a sterilization structure according to claim 6, characterized in that: The outer side surface of the sleeve (2) is threadedly connected with a fastening pin (4), and one end of the fastening pin (4) passes through the sleeve (2) and abuts against the outer side surface of the main shaft (3).

9. The minimally invasive surgical drill with a sterilization structure according to claim 1, characterized in that: The dual-axis positioning mechanism specifically comprises: a vertical drive box (12) fixed to the side of the connecting seat (11); a vertical slot (13) is provided in the middle of one side of the vertical drive box (12); a lead screw (14) is rotatably connected inside the vertical slot (13); a first motor (15) is fixedly connected to the top of the vertical drive box (12); an output shaft at the bottom of the first motor (15) passes through the vertical drive box (12) and is fixedly connected to the lead screw (14); a lifting block (16) matching the vertical slot (13) is externally threadedly connected to the lead screw (14); and one side of the lifting block (16) is threadedly connected to the vertical slot (13). A transverse drive box (17) is fixedly connected to the side surface, a transverse groove (18) is provided in the middle of one side surface of the transverse drive box (17), and a bidirectional threaded rod (19) is rotatably connected inside the transverse groove (18), a second motor (20) is fixedly connected to one end of the transverse drive box (17), and an output shaft of the second motor (20) passes through the transverse drive box (17) and is fixedly connected to the bidirectional threaded rod (19), and two parallel moving blocks (21) are externally threadedly connected to the bidirectional threaded rod (19), and the two moving blocks (21) are respectively fixedly connected to two L-shaped fixing plates (22).

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