Arm position fixing device for heart and cerebral vessel interventional operation

Abstract

The invention belongs to the technical field of surgical fixation, and particularly relates to an arm position fixing device for cardiovascular and cerebrovascular interventional surgery, which comprises a wrist rotary supporting mechanism, a rotary sensing mechanism and a lifting arm bearing mechanism, the wrist rotary supporting mechanism is arranged on the lifting arm bearing mechanism, and the rotary sensing mechanism is arranged on the lifting arm bearing mechanism. The rotation sensing mechanism is arranged on the wrist rotation supporting mechanism; the wrist rotary supporting mechanism comprises a rotary limiting assembly and a rotary positioning and maintaining assembly, the rotary limiting assembly is arranged on the lifting type arm bearing mechanism, and the rotary positioning and maintaining assembly is fixedly connected to the rotary limiting assembly. Linkage of the wrist rotation supporting mechanism and the lifting type arm bearing mechanism is achieved through the wrist rotation sensing assembly, and under the condition that no electric drive and electric control module is arranged, the technical effect of automatically controlling the arm bearing plate to ascend and descend can be achieved only through an ingenious mechanical structure when the wrist rotates.

Description

Technical Field

[0001] The present invention belongs to the technical field of surgical fixation, and specifically refers to an arm position fixing device used in cardiovascular and cerebrovascular interventional surgery. Background Art

[0002] During the cardiovascular interventional surgery, miniature operating instruments are generally inserted into the target location through the radial artery and other blood vessels for surgical operations to achieve the purpose of minimally invasive surgery. During the operation, the palm is required to be in a flexed and dorsiflexed position, and the direction of the palm sometimes needs to be inward and sometimes outward.

[0003] However, the operation lasts for a long time, and it is difficult for the patient to maintain one position for too long on his own. For some patients after anesthesia, unconscious movement may occur during the operation.

[0004] In order to solve this problem, the present invention proposes a modular arm and wrist fixation device that can be installed on a common operating table. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention proposes an arm position fixing device for cardiovascular and cerebrovascular interventional surgery. Since the palm is required to be in a flexed and extended posture during the surgery, if the center of the forearm is taken as the axis, the palm is located on one side of the axis at this time; therefore, when the palm is inward, the forearm and palm need to be moved downward as much as possible to obtain a posture that is as comfortable as possible; and when the palm is turned outward, since the palm itself and the structure for fixing the palm need to occupy a certain space, the arm must be raised to a certain extent as a whole.

[0006] In order to achieve the above-mentioned effects, the present invention proposes an arm position fixing device for cardiovascular and cerebrovascular interventional surgery, which can fix the arm and palm, and can rotate the palm and switch between the inward and outward positions when the palm is maintained in a flexed and extended posture; not only that, the present invention links the wrist rotation support mechanism and the lifting arm support mechanism through a wrist rotation sensing component, and without setting any electric drive and electric control modules, only through an ingenious mechanical structure, it can achieve the technical effect of automatically controlling the lifting and lowering of the arm support plate when the wrist rotates.

[0007] The technical solution adopted by the present invention is as follows: The present invention proposes an arm position fixing device for cardiovascular and cerebrovascular interventional surgery, comprising a wrist rotation support mechanism, a rotation sensing mechanism and a lifting arm supporting mechanism, wherein the wrist rotation support mechanism is arranged on the lifting arm supporting mechanism, and the rotation sensing mechanism is arranged on the wrist rotation support mechanism; the wrist rotation support mechanism comprises a rotation limiting assembly and a rotation positioning retaining assembly, wherein the rotation limiting assembly is arranged on the lifting arm supporting mechanism, and the rotation positioning retaining assembly is fixedly connected to the rotation limiting assembly.

[0008] Furthermore, the rotation limiting assembly includes a wrist rotating base, a wrist rotating frame one, a wrist rotating frame two and a wrist lining, the wrist rotating base is arranged on the lifting arm supporting mechanism, the wrist rotating frame two is detachably arranged on the wrist rotating frame one, the wrist rotating frame two and the wrist rotating frame one form a complete circular ring, the wrist rotating frame one and the wrist rotating frame two are rotatably arranged in the wrist rotating base, and the wrist lining is fixedly connected to the inside of the wrist rotating frame one and the wrist rotating frame two.

[0009] Preferably, the rotation positioning and holding assembly includes a fixed stopper and a rotating stopper, the fixed stopper is fixedly connected to the wrist rotating base, the rotating stopper is symmetrically arranged on wrist rotating frame one and wrist rotating frame two, and the fixed stopper and the rotating stopper can undergo elastic deformation when squeezed against each other.

[0010] Through the split wrist rotating frame one and wrist rotating frame two, the wrist rotating frame one and wrist rotating frame two can rotate as a whole through the limitation of the wrist rotating base while the palm can enter conveniently, thereby limiting and guiding the rotation of the wrist; through the elastic deformation between the fixed stopper and the rotating stopper, the wrist rotating frame one and wrist rotating frame two can be fixed to a certain extent after rotating to two specific positions, thereby facilitating the doctor's surgical operation.

[0011] Furthermore, the rotation sensing mechanism includes a rotation toggle mechanism, a palm extension fixing component and a wrist rotation sensing component, the rotation toggle mechanism is fixedly connected to the rotation limit component, the wrist rotation support mechanism is arranged on the rotation toggle mechanism, and the wrist rotation sensing component is fixedly connected to the rotation limit component.

[0012] The rotation of the rotation sensing mechanism can allow the wrist to rotate on the one hand, and can also automatically raise the arm and wrist as a whole while rotating and everting on the other hand, thereby leaving enough space for the palm to be flexed and extended and the mechanical structure of the rotation sensing mechanism itself.

[0013] Preferably, the rotating toggle mechanism includes a back extension bracket, a back extension base and a fixing strap, the back extension bracket is fixed to the side of the wrist rotating frame 2, the back extension base is fixed to the back extension bracket, the back extension base is symmetrically provided with side windows, and the fixing strap passes through the side windows.

[0014] As a further preferred embodiment of the present invention, the palm extension fixing assembly includes a rotating bracket and a rotating shaft, the rotating bracket is fixedly connected to the extension base, one group of the rotating brackets is provided with an internal ratchet portion inside, the rotating shaft is rotatably arranged in the rotating bracket, the rotating shaft is also provided with an external ratchet portion matching the handle portion, the rotating shaft can slide in the rotating bracket, and the end of the rotating shaft is also provided with a handle portion.

[0015] By rotating the rotation axis, the patient's palm can be fixed in a flexed and dorsiflexed position, which can avoid unconscious deviation of the patient during the operation.

[0016] As a further preferred embodiment of the present invention, the wrist rotation sensing assembly includes a sensing box, a transverse sliding plate, a sliding plate return spring and a multi-section hollow telescopic rod, the sensing box is fixedly connected to the wrist rotation base, the transverse sliding plate is snap-fitted and slidably arranged in the sensing box, the sliding plate return spring is arranged between one side of the transverse sliding plate and the sensing box, and the multi-section hollow telescopic rod is arranged between the other side of the transverse sliding plate and the sensing box.

[0017] By rotating the extension bracket, the transverse sliding plate can be moved to control the direction of liquid flow between the multi-section hollow telescopic rod and the lifting control push rod, thereby automatically lowering the overall height and improving the patient's comfort when the palm is inward. When the palm is turned outward, the arm height will be automatically raised, leaving enough space for the palm in flexion and extension and the mechanical structure of the rotation sensing mechanism itself.

[0018] Furthermore, the lifting arm supporting mechanism includes an arm supporting component, an arm lifting execution component and an arm lifting control component, the arm supporting component includes a lifting limit base, an arm supporting plate and an arm strap, the arm supporting plate and the wrist rotating base are fixedly connected, the arm supporting plate and the wrist rotating base are snap-fitted and slidably arranged in the lifting limit base, the arm strap is arranged on the arm supporting plate, the arm lifting execution component is arranged between the lifting limit base and the arm supporting plate, and the arm lifting control component is arranged between the lifting limit base and the arm supporting plate.

[0019] Preferably, the arm lifting actuator assembly includes a fixed bevel block and a sliding bevel block, the fixed bevel block is fixedly connected to the arm support plate, the sliding bevel block is snap-fitted and slidably arranged between the fixed bevel block and the lifting limit base, and the inclined surfaces of the fixed bevel block and the sliding bevel block are in sliding contact.

[0020] As a further preferred embodiment of the present invention, the arm lifting control assembly includes a lifting return spring and a lifting control push rod, the lifting return spring is arranged between the lifting limit base and the arm support plate, the fixed end of the lifting control push rod is arranged on the lifting limit base, and the telescopic end of the lifting control push rod is arranged on the sliding bevel block.

[0021] As a further preferred embodiment of the present invention, the multi-section hollow telescopic rod and the lifting control push rod are connected through a conduit, and liquid exchange can be performed between the multi-section hollow telescopic rod and the lifting control push rod.

[0022] The beneficial effects achieved by the present invention using the above structure are as follows: (1) The rotation of the rotation sensing mechanism allows the wrist to rotate on the one hand, and on the other hand, the arm and wrist are automatically raised as a whole while rotating and everting the hand, thereby leaving enough space for the palm to be flexed and extended and the mechanical structure of the rotation sensing mechanism itself.

[0023] (2) Through the split wrist rotating frame 1 and wrist rotating frame 2, it is possible to facilitate the entry of the palm, and the wrist rotating frame 1 and wrist rotating frame 2 can be rotated as a whole through the limit of the wrist rotating base, thereby limiting and guiding the rotation of the wrist; through the elastic deformation between the fixed stopper and the rotating stopper, the wrist rotating frame 1 and wrist rotating frame 2 can be fixed to a certain extent after rotating to two specific positions, thereby facilitating the doctor's surgical operation.

[0024] (3) By rotating the rotation axis, the patient's palm can be fixed in a flexed and dorsiflexed position, which can prevent the patient from unconsciously shifting during the operation.

[0025] (4) The lateral sliding plate can be moved by rotating the dorsal extension bracket, thereby controlling the direction of liquid flow between the multi-section hollow telescopic rod and the lifting control push rod, thereby automatically lowering the overall height and improving the patient's comfort when the palm is inward. When the palm is turned outward, the arm height is automatically raised, thereby leaving enough space for the palm to be flexed and extended and the mechanical structure of the rotation sensing mechanism itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A stereoscopic diagram of an arm position fixing device for cardiovascular and cerebrovascular interventional surgery proposed by the present invention; Figure 2 This is a front view of an arm position fixing device for cardiovascular and cerebrovascular interventional surgery proposed by the present invention; Figure 3 This is a left view of an arm position fixing device for cardiovascular and cerebrovascular interventional surgery proposed by the present invention; Figure 4This is a top view of an arm position fixing device for cardiovascular and cerebrovascular interventional surgery proposed by the present invention; Figure 5 for Figure 2 A cross-sectional view along the cutting line AA; Figure 6 for Figure 3 A cross-sectional view along the cutting line BB; Figure 7 for Figure 1 A partial enlarged view of point Ⅰ in the middle; Figure 8 for Figure 1 A partial enlarged view of the middle II; Fig. 9 for Figure 5 A partial enlarged view of point III in the middle.

[0027] Among them, 1. wrist rotation support mechanism, 2. rotation sensing mechanism, 3. lifting arm support mechanism, 4. rotation limit assembly, 5. rotation positioning holding assembly, 6. wrist rotation base, 7. wrist rotation frame 1, 8. wrist rotation frame 2, 9. fixed block, 10. rotation block, 11. rotation toggle mechanism, 12. palm back extension fixing assembly, 13. wrist rotation sensing assembly, 14. back extension bracket, 15. back extension base, 16. fixed strap, 17. rotation bracket, 18. rotation axis, 19. Induction box, 20. Transverse sliding plate, 21. Slide plate return spring, 22. Multi-section hollow telescopic rod, 23. Side window, 24. Inner ratchet part, 25. Handle part, 26. Outer ratchet part, 27. Arm support assembly, 28. Arm lifting actuator assembly, 29. Arm lifting control assembly, 30. Lifting limit base, 31. Arm support plate, 32. Arm strap, 33. Fixed oblique block, 34. Sliding oblique block, 35. Lifting return spring, 36. Lifting control push rod, 37. Wrist lining.

[0028] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only 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 ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0031] like Figure 1 to Figure 9 As shown, the present invention proposes an arm position fixing device for cardiovascular and cerebrovascular interventional surgery, including a wrist rotation support mechanism 1, a rotation sensing mechanism 2 and a lifting arm supporting mechanism 3, the wrist rotation support mechanism 1 is arranged on the lifting arm supporting mechanism 3, and the rotation sensing mechanism 2 is arranged on the wrist rotation support mechanism 1; the wrist rotation support mechanism 1 includes a rotation limiting component 4 and a rotation positioning holding component 5, the rotation limiting component 4 is arranged on the lifting arm supporting mechanism 3, and the rotation positioning holding component 5 is fixedly connected to the rotation limiting component 4.

[0032] The lifting arm supporting mechanism 3 includes an arm supporting component 27, an arm lifting execution component 28 and an arm lifting control component 29. The arm supporting component 27 includes a lifting limit base 30, an arm supporting plate 31 and an arm strap 32. The arm supporting plate 31 is fixedly connected to the wrist rotating base 6. The arm supporting plate 31 and the wrist rotating base 6 are engaged and slidably arranged in the lifting limit base 30. The arm strap 32 is arranged on the arm supporting plate 31. The arm lifting execution component 28 is arranged between the lifting limit base 30 and the arm supporting plate 31. The arm lifting control component 29 is arranged between the lifting limit base 30 and the arm supporting plate 31.

[0033] The arm lifting actuator 28 includes a fixed bevel block 33 and a sliding bevel block 34. The fixed bevel block 33 is fixedly connected to the arm support plate 31. The sliding bevel block 34 is slidably engaged between the fixed bevel block 33 and the lifting limit base 30. The inclined surfaces of the fixed bevel block 33 and the sliding bevel block 34 are in sliding contact.

[0034] The arm lifting control assembly 29 includes a lifting return spring 35 and a lifting control push rod 36. The lifting return spring 35 is arranged between the lifting limit base 30 and the arm support plate 31. The fixed end of the lifting control push rod 36 is arranged on the lifting limit base 30, and the telescopic end of the lifting control push rod 36 is arranged on the sliding bevel block 34.

[0035] The multi-section hollow telescopic rod 22 and the lifting control push rod 36 are connected through a conduit, and liquid exchange can be performed between the multi-section hollow telescopic rod 22 and the lifting control push rod 36.

[0036] The rotation limiting assembly 4 includes a wrist rotating base 6, a wrist rotating frame 1 7, a wrist rotating frame 2 8 and a wrist lining 37. The wrist rotating base 6 is arranged on the lifting arm supporting mechanism 3. The wrist rotating frame 2 8 is detachably arranged on the wrist rotating frame 1 7. The wrist rotating frame 2 8 and the wrist rotating frame 1 7 form a complete circular ring. The wrist rotating frame 1 7 and the wrist rotating frame 2 8 are rotatably arranged in the wrist rotating base 6. The wrist lining 37 is fixedly connected to the inside of the wrist rotating frame 1 7 and the wrist rotating frame 2 8.

[0037] The rotation positioning and holding assembly 5 includes a fixed stopper 9 and a rotating stopper 10. The fixed stopper 9 is fixedly connected to the wrist rotating base 6. The rotating stopper 10 is symmetrically arranged on the wrist rotating frame 1 7 and the wrist rotating frame 2 8. The fixed stopper 9 and the rotating stopper 10 can undergo elastic deformation when they are squeezed against each other.

[0038] Through the split wrist rotating frame 1 7 and wrist rotating frame 2 8, the palm can be easily entered, and the wrist rotating frame 1 7 and wrist rotating frame 2 8 can rotate as a whole through the limitation of the wrist rotating base 6, thereby limiting and guiding the rotation of the wrist; through the elastic deformation between the fixed stopper 9 and the rotating stopper 10, the wrist rotating frame 1 7 and the wrist rotating frame 2 8 can be fixed to a certain extent after rotating to two specific positions, thereby facilitating the doctor's surgical operation.

[0039] The rotation sensing mechanism 2 includes a rotation toggle mechanism 11, a palm extension fixing component 12 and a wrist rotation sensing component 13. The rotation toggle mechanism 11 is fixedly connected to the rotation limit component 4. The wrist rotation support mechanism 1 is arranged on the rotation toggle mechanism 11. The wrist rotation sensing component 13 is fixedly connected to the rotation limit component 4.

[0040] The rotation of the rotation sensing mechanism 2 can allow the wrist to rotate on the one hand, and can also automatically raise the arm and wrist as a whole while rotating and everting on the other hand, thereby leaving enough space for the palm to be flexed and extended and the mechanical structure of the rotation sensing mechanism 2 itself.

[0041] The rotating toggle mechanism 11 includes a back-extension bracket 14, a back-extension base 15 and a fixing strap 16. The back-extension bracket 14 is fixedly connected to the side of the wrist rotating frame 8, the back-extension base 15 is fixedly connected to the back-extension bracket 14, and the back-extension base 15 is symmetrically provided with side windows 23, and the fixing strap 16 passes through the side windows 23.

[0042] The palm extension fixing assembly 12 includes a rotating bracket 17 and a rotating shaft 18. The rotating bracket 17 is fixedly connected to the extension base 15. An inner ratchet portion 24 is provided inside one group of the rotating brackets 17. The rotating shaft 18 is rotatably arranged in the rotating bracket 17. The rotating shaft 18 is also provided with an outer ratchet portion 26 matching the handle portion 25. The rotating shaft 18 can slide in the rotating bracket 17. A handle portion 25 is also provided at the end of the rotating shaft 18.

[0043] By rotating the rotating shaft 18, the patient's palm can be fixed in a flexed and dorsiflexed position, thereby preventing the patient from unconsciously shifting during the operation.

[0044] The wrist rotation sensing assembly 13 includes a sensing box 19, a transverse sliding plate 20, a sliding plate return spring 21 and a multi-section hollow telescopic rod 22. The sensing box 19 is fixedly connected to the wrist rotation base 6, the transverse sliding plate 20 is slidably engaged in the sensing box 19, the sliding plate return spring 21 is disposed between one side of the transverse sliding plate 20 and the sensing box 19, and the multi-section hollow telescopic rod 22 is disposed between the other side of the transverse sliding plate 20 and the sensing box 19.

[0045] The rotation of the dorsal extension bracket 14 can move the transverse sliding plate 20 to control the flow direction of the liquid between the multi-section hollow telescopic rod 22 and the lifting control push rod 36, thereby automatically lowering the overall height and improving the patient's comfort when the palm is inward, and automatically raising the arm height when the palm is turned outward, thereby leaving enough space for the palm to be flexed and extended and the mechanical structure of the rotation sensing mechanism 2 itself.

[0046] Embodiment 1: First, the user needs to open the wrist rotating frame 2 8, place the patient's wrist between the wrist rotating frame 1 7 and the wrist rotating frame 2 8, and then install the wrist rotating frame 2 8, and then fix the patient's upper arm or forearm with the arm strap 32; Then, with the palm inwardly folded, the palm is inserted between the back extension base 15 and the fixing strap 16, and then the fixing strap 16 is tightened by rotating the rotating shaft 18, thereby completing the palm fixation; Due to the cooperation between the inner ratchet portion 24 and the outer ratchet portion 26, the fixing strap 16 can be tightened when the rotating shaft 18 rotates, but after the rotation stops, the fixing strap 16 will not be automatically released; When the fixing strap 16 is to be released, the rotating shaft 18 only needs to be pulled out of the rotating bracket 17 to a certain extent, and then the fixing strap 16 can be loosened.

[0047] Embodiment 2: When the patient needs to change from the palm-inward state to the palm-outward state, he only needs to rotate his palm or ask others to help rotate the wrist rotating frame 1 7 and the wrist rotating frame 2 8; During rotation, the first rotating stopper 10 located between the fixed stops 9 will be separated from the fixed stops 9 by elastic deformation, and will temporarily stay at this position until the next rotating stopper 10 enters between the fixed stops 9; During the rotation of the back extension bracket 14, the lateral sliding plate 20 is pushed to slide. During this process, the sliding plate return spring 21 is stretched, and the liquid in the multi-section hollow telescopic rod 22 is transferred to the lifting control push rod 36 through the conduit, so that the lifting control push rod 36 is extended. The extended lifting control push rod 36 will push the sliding bevel block 34, and make the arm support plate 31 and the wrist rotating base 6 rise along the lifting limit base 30 as a whole, and by lifting the whole, sufficient placement space is left for the palm of the hand that is flexed and extended and the mechanical structure of the rotation sensing mechanism 2 itself.

[0048] When the palm rotates in the opposite direction to return to the inward state, the liquid in the lifting control push rod 36 will also flow back into the multi-section hollow telescopic rod 22, and the slide plate return spring 21 will descend and return to its original position.

[0049] A baffle may be provided on the outside of the arm support member 31 to limit the position of the arm.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0051] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. An arm position fixing device for cardiovascular and cerebrovascular interventional surgery, characterized in that: It comprises a wrist rotation support mechanism (1), a rotation sensing mechanism (2) and a lifting arm support mechanism (3), wherein the wrist rotation support mechanism (1) is arranged on the lifting arm support mechanism (3), and the rotation sensing mechanism (2) is arranged on the wrist rotation support mechanism (1); The wrist rotation support mechanism (1) comprises a rotation limiting component (4) and a rotation positioning and holding component (5), wherein the rotation limiting component (4) is arranged on the lifting arm supporting mechanism (3), and the rotation positioning and holding component (5) is fixedly connected to the rotation limiting component (4); The rotation sensing mechanism (2) comprises a rotational toggle mechanism (11), a palm dorsal extension fixing component (12) and a wrist rotational sensing component (13); the rotational toggle mechanism (11) is fixedly connected to the rotational limit component (4); the wrist rotational support mechanism (1) is arranged on the rotational toggle mechanism (11); and the wrist rotational sensing component (13) is fixedly connected to the rotational limit component (4).

2. The arm position fixing device for cardiovascular and cerebrovascular interventional surgery according to claim 1, characterized in that: The rotation limiting assembly (4) comprises a wrist rotation base (6), a wrist rotation frame 1 (7), a wrist rotation frame 2 (8) and a wrist lining (37); the wrist rotation base (6) is arranged on the lifting arm supporting mechanism (3); the wrist rotation frame 2 (8) is detachably arranged on the wrist rotation frame 1 (7); the wrist rotation frame 2 (8) and the wrist rotation frame 1 (7) form a complete circular ring; the wrist rotation frame 1 (7) and the wrist rotation frame 2 (8) are rotatably arranged in the wrist rotation base (6); and the wrist lining (37) is fixedly connected to the inside of the wrist rotation frame 1 (7) and the wrist rotation frame 2 (8).

3. The arm position fixing device for cardiovascular and cerebrovascular interventional surgery according to claim 2, characterized in that: The rotation positioning and holding assembly (5) comprises a fixed stopper (9) and a rotating stopper (10), wherein the fixed stopper (9) is fixedly connected to the wrist rotating base (6), and the rotating stopper (10) is symmetrically arranged on the wrist rotating frame 1 (7) and the wrist rotating frame 2 (8), and the fixed stopper (9) and the rotating stopper (10) are capable of elastic deformation when they are pressed against each other.

4. The arm position fixing device for cardiovascular and cerebrovascular interventional surgery according to claim 3, characterized in that: The rotating toggle mechanism (11) comprises a back extension bracket (14), a back extension base (15) and a fixing strap (16); the back extension bracket (14) is fixedly connected to the side of the wrist rotating frame (8); the back extension base (15) is fixedly connected to the back extension bracket (14); side windows (23) are symmetrically provided on the back extension base (15); and the fixing strap (16) passes through the side windows (23).

5. The arm position fixing device for cardiovascular and cerebrovascular interventional surgery according to claim 4, characterized in that: The palm back extension fixing assembly (12) comprises a rotating bracket (17) and a rotating shaft (18), wherein the rotating bracket (17) is fixedly connected to the back extension base (15), wherein one group of the rotating brackets (17) is provided with an inner ratchet portion (24) inside, wherein the rotating shaft (18) is rotatably arranged in the rotating bracket (17), wherein the rotating shaft (18) is also provided with an outer ratchet portion (26) matching with the handle portion (25), wherein the rotating shaft (18) is capable of sliding in the rotating bracket (17), wherein the end of the rotating shaft (18) is also provided with a handle portion (25).

6. The arm position fixing device for cardiovascular and cerebrovascular interventional surgery according to claim 5, characterized in that: The wrist rotation sensing assembly (13) comprises a sensing box (19), a transverse sliding plate (20), a sliding plate return spring (21) and a multi-section hollow telescopic rod (22); the sensing box (19) is fixedly connected to the wrist rotation base (6); the transverse sliding plate (20) is slidably engaged in the sensing box (19); the sliding plate return spring (21) is disposed between one side of the transverse sliding plate (20) and the sensing box (19); and the multi-section hollow telescopic rod (22) is disposed between the other side of the transverse sliding plate (20) and the sensing box (19).

7. The arm position fixing device for cardiovascular and cerebrovascular interventional surgery according to claim 6, characterized in that: The lifting arm support mechanism (3) comprises an arm support component (27), an arm lifting actuator component (28) and an arm lifting control component (29); the arm support component (27) comprises a lifting limit base (30), an arm support plate (31) and an arm strap (32); the arm support plate (31) and the wrist rotating base (6) are fixedly connected; the arm support plate (31) and the wrist rotating base (6) are slidably arranged in the lifting limit base (30); the arm strap (32) is arranged on the arm support plate (31); the arm lifting actuator component (28) is arranged between the lifting limit base (30) and the arm support plate (31); and the arm lifting control component (29) is arranged between the lifting limit base (30) and the arm support plate (31).

8. The arm position fixing device for cardiovascular and cerebrovascular interventional surgery according to claim 7, characterized in that: The arm lifting actuator assembly (28) comprises a fixed inclined block (33) and a sliding inclined block (34), wherein the fixed inclined block (33) is fixedly connected to the arm supporting plate (31), and the sliding inclined block (34) is slidably arranged between the fixed inclined block (33) and the lifting limit base (30), and the inclined surfaces of the fixed inclined block (33) and the sliding inclined block (34) are in sliding contact.

9. The arm position fixing device for cardiovascular and cerebrovascular interventional surgery according to claim 8, characterized in that: The arm lifting control assembly (29) comprises a lifting return spring (35) and a lifting control push rod (36); the lifting return spring (35) is arranged between the lifting limit base (30) and the arm supporting plate (31); the fixed end of the lifting control push rod (36) is arranged on the lifting limit base (30); and the telescopic end of the lifting control push rod (36) is arranged on the sliding inclined block (34).

10. The arm position fixing device for cardiovascular and cerebrovascular interventional surgery according to claim 9, characterized in that: The multi-section hollow telescopic rod (22) and the lifting control push rod (36) are connected through a conduit, and liquid exchange can be performed between the multi-section hollow telescopic rod (22) and the lifting control push rod (36).

Images