Microscope operation arm stabilizing device

Abstract

The invention relates to the technical field of medical robots, and discloses a microscope surgery operation arm stabilizing device which comprises an operation arm stabilizing base, a universal wheel limiting mechanism and an anti-interference structure are arranged in the operation arm stabilizing base, and a rubber anti-skid gasket is fixedly installed at the bottom of the operation arm stabilizing base. And four extension holes are formed in the rubber anti-skid gasket. According to the microscope surgery operation arm stabilizing device, when the pedal plate is treaded, the universal wheel body extends out of the extending hole of the rubber anti-skid gasket to touch the ground, and the device enters a moving state; after the pedal is loosened, the tension spring resets to drive the connecting plate to ascend, the universal wheel body completely retracts into the rubber anti-skid gasket, at the moment, the whole bottom face of the rubber anti-skid gasket makes contact with the ground, the contact area is expanded to annular face contact from four-point contact of the universal wheel, and meanwhile a sliding sleeve is locked by inserting a limiting insertion rod into a limiting hole; and shaking of the equipment caused by ground fluctuation or external force touch is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical robots, and specifically to a stable device for a microscope surgical operation arm. Background Art

[0002] With the rapid development of minimally invasive surgical techniques, microscope surgical operation arm robots have become important tools for improving surgical precision and reducing the physical burden on doctors.

[0003] In the prior art, for example, a multi-axis arm support robot and its arm support control method disclosed in the invention patent with the patent publication number of CN118453153B realizes the free movement of the arm support in a spatial rectangular coordinate system through the rotation of each robotic arm and the movement of a translation cart, and adds a counterweight vertical rotating arm to counterweight the weight of the doctor's arm placed on the arm support, and cooperates with a gyroscope in the arm support to detect the real-time arm state and arm angle for corresponding control tasks, achieving the stability of the doctor's arm support during the operation. The whole structure is simple, the operation is convenient, effectively reducing the fatigue of the doctor's arm and wrist during the operation and improving the doctor's surgical efficiency.

[0004] However, there are still critical limitations in the prior art design. Specifically, its core moving component - the universal wheel system lacks a necessary limiting mechanism, resulting in too small a contact area between the entire arm robot and the ground. Especially during the operation, due to dynamic loads applied by doctors or environmental disturbances, such as slight undulations on the ground or external force touches, it is easy to cause the overall shaking or position deviation of the device. This stability defect not only affects the accuracy of the operation at the end of the robotic arm, but may also cause sudden changes in the force on the doctor's arm due to unexpected displacement of the support structure, increasing the intraoperative fatigue and even the risk of operation errors, severely restricting the reliability and safety of such devices in complex surgical scenarios. Therefore, a stable device for a microscope surgical operation arm is proposed. Summary of the Invention

[0005] (1) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the present invention provides a stable device for a microscope surgical operation arm, which has the advantages of significantly improved structural stability, enhanced anti-interference ability, and optimized operation safety, and solves the key limitations still existing in the design of the prior art. Specifically, its core moving component - the universal wheel system lacks a necessary limiting mechanism, resulting in too small a contact area between the entire arm robot and the ground. Especially during the operation, due to the dynamic load applied by the doctor or environmental interference, such as slight undulations on the ground, external force touches, etc., it is easy to cause the overall shaking or position deviation of the device. This stability defect not only affects the accuracy of the operation at the end of the robotic arm, but may also cause a sudden change in the force on the doctor's arm due to the unexpected displacement of the support structure, increasing the intraoperative fatigue and even the risk of operation errors, seriously restricting the reliability and safety of such devices in complex surgical scenarios.

[0007] (II) Technical Solution

[0008] To achieve the purpose of significantly improving structural stability, enhancing anti-interference ability, and optimizing operation safety, the present invention provides the following technical solution: A stable device for a microscope surgical operation arm, including a stable base for the operation arm, and a universal wheel limiting mechanism and an anti-interference structure are arranged inside the stable base for the operation arm;

[0009] The anti-interference structure includes a rubber anti-slip gasket, extension holes, an equipment box, a vacuum pump, a first air pipe, a fixed rod, a vacuum suction cup, and a connecting air pipe. A rubber anti-slip gasket is fixedly installed at the bottom of the stable base for the operation arm. Four extension holes are opened inside the rubber anti-slip gasket. An equipment box is fixedly installed on the inner top wall of the stable base for the operation arm. A vacuum pump is fixedly installed inside the equipment box. A first air pipe is fixedly installed inside the rubber anti-slip gasket. A fixed rod is fixedly installed outside the rubber anti-slip gasket. A vacuum suction cup is fixedly installed at the bottom of the fixed rod. A connecting air pipe is fixedly installed inside the fixed rod.

[0010] Preferably, the universal wheel limiting mechanism includes a stable sliding rod, a connecting plate, a universal wheel body, a limiting sleeve, a tension spring, a control rod, a connecting column, a limiting hole, a sliding sleeve, a foot pedal, a connecting rod, and a limiting insertion rod. Stable sliding rods are fixedly installed on the inner left wall and inner right wall of the stable base for the operation arm. A connecting plate is slidably connected between the two stable sliding rods. Four universal wheel bodies are fixedly installed at the bottom of the connecting plate. A limiting sleeve is fixedly installed on the inner top wall of the stable base for the operation arm. A tension spring is fixedly installed inside the limiting sleeve. A control rod is slidably connected to the outside of the limiting sleeve. A connecting column is fixedly installed on the top of the stable base for the operation arm. A limiting hole is opened on the front surface of the connecting column. A sliding sleeve and a foot pedal are slidably connected to the outside of the connecting column. A connecting rod is fixedly installed on the outside of the foot pedal. A limiting insertion rod is inserted into the front surface of the sliding sleeve.

[0011] Preferably, a second air pipe is fixedly installed at the bottom of the vacuum pump. The bottom of the second air pipe penetrates through the center position of the connecting plate and the top of the rubber anti-slip gasket and is connected to the first air pipe. A third air pipe extending to the outside of the stable base of the operating arm is fixedly installed on the back of the vacuum pump.

[0012] Preferably, the number of the fixing rods is four, and connecting air pipes with one end connected to the first air pipe and the other end connected to the vacuum suction cup are fixedly installed inside the four fixing rods. The bottom of the vacuum suction cup and the bottom of the rubber anti-slip gasket are located on the same horizontal plane.

[0013] Preferably, the number of the universal wheel bodies is four. Four extension holes adapted to the four universal wheel bodies are formed inside the rubber anti-slip gasket. The connecting plate is slidably connected to two stable sliding rods through sliding sleeves fixedly installed on the left and right sides.

[0014] Preferably, the number of the limiting sleeves and the control rods is four each. Four extension grooves adapted to the four limiting sleeves and the four control rods are formed inside the connecting plate.

[0015] Preferably, a slider is slidably connected inside the limiting sleeve. The top of the tension spring is fixedly connected to the inner top wall of the limiting sleeve, and the bottom of the tension spring is fixedly connected to the top of the slider.

[0016] Preferably, a limiting sliding groove is formed on one side of the limiting sleeve close to the control rod. A connecting member penetrating through the limiting sliding groove and fixedly connected to the slider is fixedly installed on one side of the control rod close to the limiting sleeve.

[0017] Preferably, the top of the control rod penetrates through the inner top wall of the stable base of the operating arm and is fixedly connected to the connecting rod. The number of the limiting holes is two. The limiting insertion rod penetrates through the front of the sliding sleeve and is threadedly connected to one of the limiting holes. The sliding sleeve is fixedly connected to the foot pedal.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, the present invention provides a stable device for a microscope surgical operating arm, which has the following beneficial effects:

[0020] 1. For this microscope surgical operation arm stabilizing device, when the foot pedal is depressed, the sliding sleeve drives the connecting rod to press down the control rod, overcoming the pulling force of the tension spring to cause the connecting plate to descend along the stabilizing slide rod, and the universal wheel body extends out of the extension hole of the rubber anti-slip washer to touch the ground, and the device enters the moving state; after the foot pedal is released, the tension spring resets to drive the connecting plate to rise, and the universal wheel body completely retracts into the rubber anti-slip washer. At this time, the entire bottom surface of the rubber anti-slip washer contacts the ground, and the contact area expands from the four-point contact of the universal wheel to an annular surface contact. At the same time, the sliding sleeve is locked by inserting the limit insertion rod into the limit hole, effectively reducing the shaking of the device caused by ground undulation or external force touch.

[0021] 2. For this microscope surgical operation arm stabilizing device, after starting the vacuum pump, it evacuates the air from the vacuum suction cup at the bottom of the fixed rod through the second air pipe, the first air pipe and four connecting air pipes to form a negative pressure to tightly adsorb the ground by the vacuum suction cup; at the same time, the rubber anti-slip washer flush with the bottom surface of the vacuum suction cup uses the elasticity of the material to increase the frictional force of the contact surface; under the dual mechanisms, the device forms a composite stable structure of "adsorption force + frictional force" with the ground, effectively offsetting the dynamic load during the doctor's operation and environmental interference, avoiding the mechanical arm operation error caused by the displacement of the support structure, and significantly improving the reliability of the device in complex surgical scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic plan view of the present invention;

[0023] Figure 2 is a schematic view of the universal wheel limiting mechanism and anti-interference structure of the present invention;

[0024] Figure 3 is a three-dimensional schematic view of the connecting plate of the present invention;

[0025] Figure 4 is a three-dimensional schematic view of the limit sleeve of the present invention;

[0026] Figure 5 is a partial three-dimensional schematic view of the universal wheel limiting mechanism of the present invention;

[0027] Figure 6 is a three-dimensional schematic view of the rubber anti-slip washer of the present invention;

[0028] Figure 7 is for the present invention Figure 1 is an enlarged schematic view of part A in.

[0029] In the figure: 1. Stable base of the operating arm; 2. Universal wheel limiting mechanism; 201. Stable sliding rod; 202. Connecting plate; 203. Universal wheel body; 204. Limiting sleeve; 205. Tension spring; 206. Control rod; 207. Connecting column; 208. Limiting hole; 209. Sliding sleeve; 210. Pedal; 211. Connecting rod; 212. Limiting insertion rod; 3. Anti-interference structure; 301. Rubber anti-slip washer; 302. Extension hole; 303. Equipment box; 304. Vacuum pump; 305. First air pipe; 306. Fixed rod; 307. Vacuum suction cup; 308. Connecting air pipe. Detailed implementation mode

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figures 1-7 , a stable device for a microscope surgical operating arm, including a stable base 1 of the operating arm. A universal wheel limiting mechanism 2 and an anti-interference structure 3 are arranged inside the stable base 1 of the operating arm;

[0032] The anti-interference structure 3 includes a rubber anti-slip washer 301, an extension hole 302, an equipment box 303, a vacuum pump 304, a first air pipe 305, a fixed rod 306, a vacuum suction cup 307 and a connecting air pipe 308. A rubber anti-slip washer 301 is fixedly installed at the bottom of the stable base 1 of the operating arm. Four extension holes 302 are opened inside the rubber anti-slip washer 301. An equipment box 303 is fixedly installed on the inner top wall of the stable base 1 of the operating arm. A vacuum pump 304 is fixedly installed inside the equipment box 303. A first air pipe 305 is fixedly installed inside the rubber anti-slip washer 301. A fixed rod 306 is fixedly installed outside the rubber anti-slip washer 301. A vacuum suction cup 307 is fixedly installed at the bottom of the fixed rod 306. A connecting air pipe 308 is fixedly installed inside the fixed rod 306.

[0033] The universal wheel limiting mechanism 2 includes a stable sliding rod 201, a connecting plate 202, a universal wheel body 203, a limiting sleeve 204, a tension spring 205, a control rod 206, a connecting column 207, a limiting hole 208, a sliding sleeve 209, a foot pedal 210, a connecting rod 211, and a limiting insertion rod 212. On the inner left wall and inner right wall of the operating arm stable base 1, stable sliding rods 201 are fixedly installed. A connecting plate 202 is slidably connected between the two stable sliding rods 201. Four universal wheel bodies 203 are fixedly installed at the bottom of the connecting plate 202. A limiting sleeve 204 is fixedly installed on the inner top wall of the operating arm stable base 1. A tension spring 205 is fixedly installed inside the limiting sleeve 204. A control rod 206 is slidably connected to the outside of the limiting sleeve 204. A connecting column 207 is fixedly installed on the top of the operating arm stable base 1. A limiting hole 208 is opened on the front of the connecting column 207. A sliding sleeve 209 and a foot pedal 210 are slidably connected to the outside of the connecting column 207. A connecting rod 211 is fixedly installed on the outside of the foot pedal 210. A limiting insertion rod 212 is inserted into the front of the sliding sleeve 209.

[0034] Embodiment 1:

[0035] This embodiment details the mechanical structure of the universal wheel limiting mechanism 2 and its connection method with the operating arm stable base 1.

[0036] On the inner left wall and inner right wall of the operating arm stable base 1, two stable sliding rods 201 are symmetrically and fixedly installed. Their axes are perpendicular to the surface of the operating arm stable base 1. The material is stainless steel, and the surface is anodized to reduce friction and wear.

[0037] The connecting plate 202 is slidably connected to the stable sliding rod 201 through the sliding sleeves on both sides. The fit tolerance between the inner diameter of the sliding sleeve and the outer diameter of the stable sliding rod 201 is H7 / g6 to ensure the smoothness during vertical movement. Four universal wheel bodies 203 are evenly distributed at the bottom of the connecting plate 202. The top of the universal wheel body 203 is flush with the inner wall of the extension hole 302 of the rubber anti-slip washer 301. The diameter of the extension hole 302 is 2 mm larger than the outer diameter of the universal wheel body 203, allowing the universal wheel body 203 to freely expand and contract but restricting horizontal offset.

[0038] The limiting sleeve 204 is fixed to the inner top wall of the operating arm stable base 1. A slider is arranged inside and connected to the tension spring 205. The free length of the tension spring 205 is 50 mm, and it provides a pulling force of 20 N after pre-compression. The control rod 206 passes through the limiting chute of the limiting sleeve 204 and is fixed to the slider. The top is linked to the foot pedal 210 through the connecting rod 211. The connecting column 207 is fixed to the top of the operating arm stable base 1. A sliding sleeve 209 and a foot pedal 210 are slidably connected to its outside. The sliding sleeve 209 is thread-locked with the limiting hole 208 of the connecting column 207 through the limiting insertion rod 212 to prevent accidental loosening.

[0039] Embodiment 2:

[0040] This embodiment focuses on the layout of the vacuum adsorption system of the anti-interference structure 3 and the details of the gas path connection.

[0041] The rubber anti-slip gasket 301 is made of high-elastic nitrile rubber, with a Shore hardness of 70A and a thickness of 5 mm. It is fixed to the bottom of the stable base 1 of the operating arm by bolts; four extension holes 302 are opened inside it, and the hole depth matches the hub height of the universal wheel body 203 to ensure that the universal wheel body 203 can retract into the stable base 1 of the operating arm.

[0042] The equipment box 303 is fixed to the inner top wall of the stable base 1 of the operating arm, and a vacuum pump 304, model VP-60, with an air extraction rate of 60 L / min, is installed inside. Its bottom is connected to the first air pipe 305 by welding through a second air pipe with an inner diameter of 10 mm and made of polyurethane, passing through the central hole of the connecting plate 202 and the top of the rubber anti-slip gasket 301.

[0043] The first air pipe 305 is annularly distributed inside the rubber anti-slip gasket 301 and is connected to the connecting air pipe 308 of the fixed rod 306 through four branches; the fixed rods 306 are symmetrically distributed at the four corners of the rubber anti-slip gasket 301, made of aluminum alloy, and a vacuum chuck 307 made of silicone rubber with a thickness of 2 mm is installed at the bottom. The bottom of the vacuum chuck 307 is flush with the bottom surface of the rubber anti-slip gasket 301.

[0044] Embodiment Three:

[0045] This embodiment integrates the linkage mechanism of the universal wheel limiting mechanism 2 and the anti-interference structure 3.

[0046] After removing the limit plug 212, when stepping on the foot pedal 210, the connecting rod 211 drives the control rod 206 to move downward, stretching the tension spring 205 inside the limit sleeve 204, causing the connecting plate 202 to descend along the stable sliding rod 201, and the universal wheel body 203 extends out of the extension hole 302 to touch the ground, and the device enters the moving mode.

[0047] After releasing the foot pedal, the tension spring 205 resets to drive the connecting plate 202 to rise, and the universal wheel body 203 retracts into the stable base 1 of the operating arm. At this time, the entire bottom surface of the rubber anti-slip gasket 301 contacts the ground, and the contact area expands from four points to an annular surface, with a friction coefficient ≥ 0.8.

[0048] At the same time, the vacuum pump 304 is started to extract the air inside the rubber anti-slip gasket 301 through the second air pipe, and a negative pressure is formed in the vacuum chuck 307 through the first air pipe 305 and the connecting air pipe 308.

[0049] After the limit plug 212 is inserted into the limit hole 208 of the connecting column 207, the sliding sleeve 209 and the foot pedal 210 are locked to ensure the stability of the high position state of the connecting plate 202.

[0050] If the position needs to be adjusted, first rotate the limit insertion rod 212 to disengage from the limit hole 208, step on the foot pedal so that the universal wheel body 203 touches the ground, and repeat the locking process after moving.

[0051] In summary, for this microscope surgical operation arm stabilizing device, when the foot pedal 210 is stepped on, the sliding sleeve 209 drives the connecting rod 211 to press down the control rod 206, overcoming the pulling force of the tension spring 205 to make the connecting plate 202 descend along the stabilizing slide rod 201, and the universal wheel body 203 extends out of the extension hole 302 of the rubber anti-slip washer 301 to touch the ground, and the device enters the moving state; after the foot pedal is released, the tension spring 205 resets to drive the connecting plate 202 to rise, and the universal wheel body 203 completely retracts into the rubber anti-slip washer 301. At this time, the entire bottom surface of the rubber anti-slip washer 301 contacts the ground, and the contact area expands from the four-point contact of the universal wheel to an annular surface contact. At the same time, the sliding sleeve 209 is locked by inserting the limit insertion rod 212 into the limit hole 208, effectively reducing the shaking of the equipment caused by ground undulation or external force touch.

[0052] Moreover, for this microscope surgical operation arm stabilizing device, after the vacuum pump 304 is started, it evacuates the air from the vacuum suction cup 307 at the bottom of the fixed rod 306 through the second air pipe, the first air pipe 305 and the four connecting air pipes 308 to form a negative pressure to tightly adsorb the vacuum suction cup 307 to the ground; at the same time, the rubber anti-slip washer 301 flush with the bottom surface of the vacuum suction cup 307 uses the elasticity of the material to increase the friction force of the contact surface; under the dual mechanism, the device forms a composite stable structure of "adsorption force + friction force" with the ground, effectively offsetting the dynamic load during the doctor's operation and environmental interference, avoiding the mechanical arm operation error caused by the displacement of the support structure, significantly improving the reliability of the equipment in complex surgical scenarios, and solving the key limitations still existing in the prior art design. Specifically, its core moving part - the universal wheel system lacks a necessary limiting mechanism, resulting in too small a contact area between the entire arm robot and the ground. Especially during the operation, due to the dynamic load applied by the doctor or environmental interference, such as small ground undulations, external force touches, etc., it is easy to cause the overall shaking or position deviation of the equipment. This stability defect not only affects the accuracy of the operation at the end of the robotic arm, but may also cause a sudden change in the force on the doctor's arm due to the unexpected displacement of the support structure, increasing the intraoperative fatigue and even the risk of operation errors, seriously restricting the reliability and safety of this type of equipment in complex surgical scenarios.

[0053] It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0054] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stabilizing device for a microscope surgical operating arm, comprising a stabilizing base (1) for the operating arm, characterized in that: The inside of the operating arm stable base (1) is provided with a universal wheel limiting mechanism (2) and an anti-interference structure (3). The anti-interference structure (3) includes a rubber anti-slip gasket (301), an extension hole (302), an equipment box (303), a vacuum pump (304), a first air pipe (305), a fixed rod (306), a vacuum suction cup (307) and a connecting air pipe (308). A rubber anti-slip gasket (301) is fixedly installed at the bottom of the operating arm stable base (1). Four extension holes (302) are formed inside the rubber anti-slip gasket (301). An equipment box (303) is fixedly installed on the inner top wall of the operating arm stable base (1). A vacuum pump (304) is fixedly installed inside the equipment box (303). A first air pipe (305) is fixedly installed inside the rubber anti-slip gasket (301). A fixed rod (306) is fixedly installed outside the rubber anti-slip gasket (301). A vacuum suction cup (307) is fixedly installed at the bottom of the fixed rod (306). A connecting air pipe (308) is fixedly installed inside the fixed rod (306).

2. The stable device for a microscope surgical operation arm according to claim 1, wherein: The universal wheel limiting mechanism (2) includes a stable sliding rod (201), a connecting plate (202), a universal wheel body (203), a limiting sleeve (204), a tension spring (205), a control rod (206), a connecting column (207), a limiting hole (208), a sliding sleeve (209), a foot pedal (210), a connecting rod (211) and a limiting insertion rod (212). Stable sliding rods (201) are fixedly installed on both the inner left wall and the inner right wall of the operating arm stable base (1). A connecting plate (202) is slidably connected between the two stable sliding rods (201). Four universal wheel bodies (203) are fixedly installed at the bottom of the connecting plate (202). A limiting sleeve (204) is fixedly installed on the inner top wall of the operating arm stable base (1). A tension spring (205) is fixedly installed inside the limiting sleeve (204). A control rod (206) is slidably connected to the outside of the limiting sleeve (204). A connecting column (207) is fixedly installed on the top of the operating arm stable base (1). A limiting hole (208) is formed on the front surface of the connecting column (207). A sliding sleeve (209) and a foot pedal (210) are slidably connected to the outside of the connecting column (207). A connecting rod (211) is fixedly installed on the outside of the foot pedal (210). A limiting insertion rod (212) is inserted into the front surface of the sliding sleeve (209).

3. The stable device for a microscope surgical operation arm according to claim 2, wherein: A second air pipe is fixedly installed at the bottom of the vacuum pump (304). The bottom of the second air pipe penetrates through the central position of the connecting plate (202) and the top of the rubber anti-slip gasket (301) and is connected to the first air pipe (305). A third air pipe extending to the outside of the operating arm stable base (1) is fixedly installed on the back surface of the vacuum pump (304).

4. A microscope surgical operation arm stabilizing device according to claim 1, characterized in that: The number of the fixed rods (306) is four, and a connecting air pipe (308) is fixedly installed inside each of the four fixed rods (306). One end of the connecting air pipe (308) is connected to the first air pipe (305), and the other end is connected to the vacuum suction cup (307). The bottom of the vacuum suction cup (307) and the bottom of the rubber anti-slip gasket (301) are located on the same horizontal plane.

5. The stable device for the microscope surgical operation arm according to claim 2, characterized in that: The number of the universal wheel bodies (203) is four. Four extension holes (302) adapted to the four universal wheel bodies (203) are formed inside the rubber anti-slip gasket (301). The connecting plate (202) is slidably connected to the two stabilizing sliding rods (201) through the sliding sleeves fixedly installed on the left and right sides.

6. The stable device for a microscope surgical operation arm according to claim 2, wherein: The number of the limiting sleeves (204) and the control rods (206) is four. Four extension grooves adapted to the four limiting sleeves (204) and the four control rods (206) are formed inside the connecting plate (202).

7. The stabilizing device for a microscope surgical operation arm according to claim 2, wherein: A slider is slidably connected inside the limiting sleeve (204). The top of the tension spring (205) is fixedly connected to the inner top wall of the limiting sleeve (204), and the bottom of the tension spring (205) is fixedly connected to the top of the slider.

8. A microscope surgical operation arm stabilizing device according to claim 7, characterized in that: A limiting sliding groove is formed on one side of the limiting sleeve (204) close to the control rod (206). A connecting member penetrating through the limiting sliding groove and fixedly connected to the slider is fixedly installed on one side of the control rod (206) close to the limiting sleeve (204).

9. The stable device for a microscope surgical operation arm according to claim 1, characterized in that: The top of the control rod (206) penetrates through the inner top wall of the operation arm stabilizing base (1) and is fixedly connected to the connecting rod (211). The number of the limiting holes (208) is two. The limiting insertion rod (212) penetrates through the front surface of the sliding sleeve (209) and is threadedly connected to one of the limiting holes (208). The sliding sleeve (209) is fixedly connected to the foot pedal (210).

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