Amputation fixing device

Abstract

The invention provides an amputation fixing device. The amputation fixing device comprises a bottom plate, a side fixing plate, a lower clamping assembly, a lifting mechanism, a driving assembly, a telescopic assembly, a locking rod and a clamping plate assembly. The side fixing plate is fixedly arranged on the side face of the bottom plate, and the lower clamping assembly is arranged on the side fixing plate in a lifting mode. The lifting mechanism is arranged on the side fixing plate in a lifting mode, the driving assembly is arranged on the side fixing plate in a sliding mode, and the driving assembly can be fixed at the position after sliding; sliding of the driving assembly can drive the lower clamping assembly and the lifting mechanism to ascend and descend at the same time and can continuously drive the lifting mechanism to descend after clamping of the lower clamping mechanism. The telescopic assembly is arranged at the top end of the lifting mechanism, a limiting hole is formed in the telescopic assembly, and the locking rod can be inserted into the limiting hole to limit stretching of the telescopic assembly; the telescopic end of the telescopic assembly is connected with the clamping plate assembly, and the clamping plate assembly stretches out and draws back along with lifting of the lifting assembly. According to the amputation fixing device, fixing of the device and fixing of limbs can be completed through a single piece.

Description

Technical Field

[0001] The invention relates to the technical field of amputation, and in particular to an amputation fixing device. Background Art

[0002] Orthopedics is one of the most common departments in major hospitals. It mainly studies the anatomy, physiology and pathology of the musculoskeletal system, and uses drugs, surgery and physical methods to maintain and develop the normal form and function of this system. During surgery, when amputation is required for a patient, a special bone saw will be used for amputation. However, the bone saws used in current clinical surgery cannot fix the patient's bones, resulting in the bone vibrating with the vibration of the bone saw during amputation, causing the bone to shift with the vibration during the amputation process, making it impossible to complete the amputation, thereby increasing the risk of amputation for the patient.

[0003] To this end, the patient's limbs need to be fixed. The current fixing device usually needs to clamp the operating table from the bottom and then operate the splint to clamp the patient's limbs, which is inconvenient because it cannot be performed synchronously. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention proposes an amputation fixation device to solve the technical problem mentioned in the above background technology that the existing amputation fixation device is difficult to simultaneously fix the device and clamp the splint.

[0005] In order to solve this technical problem, the technical solution adopted by the present invention is:

[0006] An amputation fixation device comprises a bottom plate, a side fixing plate, a lower clamping assembly, a lifting mechanism, a driving assembly, a telescopic assembly, a locking rod and a splint assembly;

[0007] The side fixing plate is fixedly arranged on the side surface of the bottom plate, and the lower clamping assembly is liftably arranged on the side fixing plate;

[0008] The lifting mechanism is movably mounted on the side fixing plate, the driving assembly is slidably mounted on the side fixing plate, and the driving assembly can be fixed in position after sliding; the sliding of the driving assembly can simultaneously drive the lower clamping assembly and the lifting mechanism to move up and down, and can continuously drive the lifting mechanism to move down after the lower clamping mechanism clamps;

[0009] The telescopic component is arranged at the top end of the lifting mechanism, and a limiting hole is provided on the telescopic component. The locking rod can be inserted into the limiting hole to limit the telescopic component from extending or retracting. The splint component can be extended or retracted, and the telescopic end of the telescopic component is connected to the splint component. The splint component extends or retracts as the lifting component is lifted or lowered.

[0010] Furthermore, the lower clamping assembly includes a lifting connecting plate, a wedge block, a clamping connecting rod and a lower fixed plate; the lifting connecting plate can be slidably connected to the side fixed plate, the wedge block is arranged on the lifting connecting plate, the clamping connecting rod is arranged at the top of the wedge block, and the lower fixed plate is arranged at the top of the clamping connecting rod, and the sliding of the driving assembly can drive the lifting of the wedge block.

[0011] Furthermore, the lifting connecting rod is a threaded rod and is screwed to the wedge block.

[0012] Furthermore, the lifting mechanism includes a lifting and fixing plate, a driven gear ring and a lifting component; the lifting and fixing plate is fixed on the side fixing plate, the gear ring is rotatably connected to the lifting and fixing plate, the lifting component can be lifted and lowered on the lifting and fixing plate, the telescopic component is arranged on the lifting component, and the driving component can drive the lifting component to lift and lower through the driven gear ring.

[0013] Furthermore, the lifting assembly includes a lifting screw, a lifting connecting rod and a ball bearing; the lifting screw is threadedly connected to the driven gear ring and the lifting fixed plate, the lifting connecting rod is fixed on the lifting screw, and is connected to the telescopic assembly through the ball bearing.

[0014] Furthermore, the driving assembly includes a driving rack, a rack connecting plate, a sliding plate and a limiting boss; the driving rack is slidably connected to the side fixed plate and meshes with the driven gear ring, and the sliding of the driving rack can drive the wedge block to lift; the rack connecting plate is arranged on the side of the driving rack, and the sliding plate is slidably connected to the rack connecting plate and can slide toward the side of the side fixed plate; a fixing groove is provided on the side of the side fixed plate, and a plurality of limiting bosses are provided on the sliding plate, and the limiting bosses can be inserted into the fixing groove.

[0015] Furthermore, the telescopic assembly includes a fixed tube, a sliding rod and a sliding tube; the fixed tube is arranged on the ball bearing, the sliding rod is slidably connected in the fixed tube, and is connected to the clamping plate assembly; the sliding rod is provided with a plurality of limiting holes, the limiting holes are relatively provided on the opposite sides of the fixed tube, the sliding tube is arranged on the fixed tube, the locking rod is slidably connected in the sliding tube, and can pass through the limiting holes of the fixed tube and the sliding rod.

[0016] Furthermore, the lifting connecting rod is a worm gear, and is also provided with a worm gear assembly and a driven rack; the worm gear assembly includes a connecting frame, a driven rotating shaft, a turbine body and a driven gear; the connecting frame is fixed on the fixed tube, the driven rotating shaft is rotatably connected to the connecting frame, the worm gear body and the driven gear are coaxially fixed on the driven rotating shaft respectively, the lifting connecting rod can drive the worm gear body to rotate unidirectionally, the driven rack is fixed on the locking rod, and the driven gear and the driven rack are meshed.

[0017] Furthermore, the splint assembly includes a fixed connecting rod, an upper splint, a splint connecting rod and a lower splint; the top end of the fixed connecting rod is fixed on the sliding rod, and the bottom end of the fixed connecting rod is fixedly connected to the upper splint; one end of the splint connecting rod is passed through the fixed upper splint, and the other end of the splint connecting rod is fixed on the lower splint.

[0018] Furthermore, the upper clamping plate and the lower clamping plate are arc-shaped plates.

[0019] Compared with the prior art, the advancement of this application is:

[0020] In the present application, after placing the device in a suitable position, the patient's limb is passed through the splint assembly, and then the device and the patient's limb can be fixed simultaneously by sliding the drive assembly, that is, the fixation of the device and the limb can be completed by a single component, so there is no need to operate on different drive components. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation of the present invention, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0022] Figure 1 A schematic diagram of an amputation fixation device provided by an embodiment of the present invention;

[0023] Figure 2 for Figure 1 A cross-sectional schematic diagram of an amputation fixation device shown;

[0024] Figure 3 for Figure 1 A schematic cross-sectional view of another position of an amputation fixation device shown;

[0025] Figure 4 for Figure 1 A schematic diagram of the lifting mechanism shown;

[0026] Figure 5 for Figure 1 A schematic diagram of an amputation fixation device shown in which a worm gear assembly and a driven rack are added and a lifting connecting rod is set as a worm gear;

[0027] Figure 6 for Figure 5 An enlarged schematic diagram of part A is shown.

[0028] Reference numerals:

[0029] Base plate 1, side fixing plate 11, fixing groove 111, lower clamping assembly 2, lifting connecting plate 21, wedge block 22, clamping connecting rod 23, lower fixing plate 24, lifting mechanism 3, lifting fixing plate 31, driven gear ring 32, lifting assembly 33, lifting screw 331, lifting connecting rod 332, ball bearing 333, driving assembly 4, driving rack 41, rack connecting plate 42, sliding plate 43, limiting boss 44, telescopic assembly 5, fixing tube 51, sliding rod 52, sliding tube 53, limiting hole 54, locking rod 6, driven rack 61, clamping plate assembly 7, fixing connecting rod 71, upper clamping plate 72, clamping plate connecting rod 73, lower clamping plate 74, worm gear assembly 8, connecting frame 81, driven rotating shaft 82, turbine body 83, driven gear 84. DETAILED DESCRIPTION

[0030] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0031] Please also read Figure 1-Figure 6 , this embodiment provides an amputation fixation device, including a bottom plate 1, a side fixing plate 11, a lower clamping assembly 2, a lifting mechanism 3, a driving assembly 4, a telescopic assembly 5, a locking rod 6 and a splint assembly 7;

[0032] The side fixing plate 11 is fixedly mounted on the side of the bottom plate 1, and the lower clamping assembly 2 is liftably mounted on the side fixing plate 11; specifically, the bottom plate 1 is placed on the operating table, and the side fixing plate 11 is placed on the side of the operating table. The lower clamping assembly 2 is lifted to clamp the operating table between the lower clamping assembly 2 and the bottom plate 1, thereby fixing the position of the bottom plate 1.

[0033] The lifting mechanism 3 is slidably disposed on the side fixing plate 11, and the driving assembly 4 is slidably disposed on the side fixing plate 11. The driving assembly 4 can be fixed in position after sliding. The sliding of the driving assembly 4 can simultaneously drive the lower clamping assembly 2 and the lifting mechanism 3 to rise and fall, and can continuously drive the lifting mechanism 3 to descend after the lower clamping mechanism clamps.

[0034] Specifically, when the driving component 4 slides toward the direction close to the operating table, it simultaneously drives the lower clamping plate 74 component 7 to rise and the lifting mechanism 3 to descend. After the lower clamping component 2 reaches the maximum height, that is, clamps the operating table, the sliding of the driving component 4 toward the operating table can continue to drive the lifting mechanism 3 to descend and the lower clamping component to maintain this height; the outward sliding of the driving component 4 can drive the lifting mechanism 3 to rise and the lower clamping component 2 to descend.

[0035] The telescopic assembly 5 is arranged at the top of the lifting mechanism 3. The telescopic assembly 5 is provided with a limit hole 54. The locking rod 6 can be inserted into the limit hole 54 to limit the telescopic assembly 5 from extending and retracting. The clamping plate assembly 7 can extend and retract.

[0036] The telescopic end of the telescopic assembly 5 is connected to the splint assembly 7, and the splint assembly 7 is telescopic with the lifting and lowering of the lifting assembly 33. That is, the splint assembly 7 contracts with the descent of the lifting mechanism 3, thereby clamping the patient's limbs, and the splint assembly 7 is loosened and expanded with the rise of the lifting mechanism 3, thereby releasing the clamping of the patient.

[0037] In the present application, after placing the device in a suitable position, the patient's limb is passed through the splint assembly 7, and then the driving assembly 4 is slid to simultaneously fix the device and the patient's limb, that is, the fixation of the device and the limb can be completed by a single component, so there is no need to operate on different driving components.

[0038] In other schemes, the lower clamping assembly 2 includes a lifting connecting plate 21, a wedge block 22, a clamping link 23 and a lower fixed plate 24; the lifting connecting plate 21 is slidably connected to the side fixed plate 11, the wedge block 22 is arranged on the lifting connecting plate 21, the clamping link 23 is arranged at the top of the wedge block 22, and the lower fixed plate 24 is arranged at the top of the clamping link 23, and the sliding of the driving assembly 4 can drive the lifting of the wedge block 22. Specifically, the lower clamping assembly 2 is placed below the bottom plate 1.

[0039] In other embodiments, the lifting link 332 is a threaded rod and is screwed to the wedge 22. By setting the lifting link 332 as a threaded rod, the distance between the lower fixing plate 24 and the bottom plate 1 can be adjusted according to different operating tables to adapt to different operating tables.

[0040] In other schemes, the lifting mechanism 3 includes a lifting fixed plate 31, a driven gear ring 32 and a lifting assembly 33; the lifting fixed plate 31 is fixed on the side fixed plate 11, the gear ring is rotatably connected to the lifting fixed plate 31, the lifting assembly 33 is escalably arranged on the lifting fixed plate 31, the telescopic assembly 5 is arranged on the lifting assembly 33, and the driving assembly 4 can drive the lifting assembly 33 to rise and fall through the driven gear ring 32. That is, the sliding of the driving assembly 4 can drive the rotation of the driven gear ring 32, and the rotation of the driven gear ring 32 can drive the lifting assembly 33 to rise and fall.

[0041] In other embodiments, the lifting assembly 33 includes a lifting screw 331, a lifting connecting rod 332 and a ball bearing 333; the lifting screw 331 is screwed to the driven gear ring 32 and the lifting fixed plate 31, and the lifting connecting rod 332 is fixed to the lifting screw 331 and connected to the telescopic assembly 5 through the ball bearing 333. Specifically, the driven gear ring 32, the lifting screw 331, the lifting connecting rod 332 and the ball bearing 333 are coaxial, the driven gear ring 32 is provided with an internal thread, and the lifting fixed plate 31 is provided with a threaded hole, the rotation of the driven gear ring 32 drives the lifting screw 331 to rotate and lift, the lifting connecting rod 332 is fixed to the inner ring of the ball bearing 333, and the outer ring of the ball bearing 333 is connected to the telescopic assembly 5, so that when the lifting connecting rod 332 rotates, the telescopic assembly 5 does not rotate.

[0042] In other embodiments, the driving assembly 4 includes a driving rack 41, a rack connecting plate 42, a sliding plate 43 and a limiting boss 44; the driving rack 41 is slidably connected to the side fixing plate 11 and meshes with the driven gear ring 32, and the sliding of the driving rack 41 can drive the wedge block 22 to lift; the rack connecting plate 42 is arranged on the side of the driving rack 41, and the sliding plate 43 is slidably connected to the rack connecting plate 42 and can slide toward the side of the side fixing plate 11; a fixing groove 111 is arranged on the side of the side fixing plate 11, and a plurality of limiting bosses 44 are arranged on the sliding plate 43, and the limiting bosses 44 can be inserted into the fixing groove 111. It should be understood that the sliding direction of the sliding plate 43 is perpendicular to the sliding direction of the driving rack 41, and the limiting bosses 44 can limit the sliding of the driving rack 41 after being inserted into the fixing groove 111.

[0043] In other schemes, the telescopic assembly 5 includes a fixed tube 51, a sliding rod 52 and a sliding tube 53; the fixed tube 51 is arranged on the ball bearing 333, the sliding rod 52 is slidably connected in the fixed tube 51, and is connected to the clamping plate assembly 7; a plurality of limiting holes 54 are provided on the sliding rod 52, and limiting holes 54 are relatively provided on the opposite sides of the fixed tube 51, the sliding tube 53 is arranged on the fixed tube 51, the locking rod 6 is slidably connected in the sliding tube 53, and can pass through the limiting holes 54 of the fixed tube 51 and the sliding rod 52.

[0044] In other schemes, the lifting link 332 is a worm, and is also provided with a worm gear assembly 8 and a driven rack 61; the worm gear assembly 8 includes a connecting frame 81, a driven shaft 82, a turbine body 83 and a driven gear 84; the connecting frame 81 is fixed on the fixed tube 51, the driven shaft 82 is rotatably connected to the connecting frame 81, the worm gear body and the driven gear 84 are coaxially fixed on the driven shaft 82, respectively, the lifting link 332 can drive the worm gear body to rotate unidirectionally, the driven rack 61 is fixed on the locking rod 6, and the driven gear 84 is meshed with the driven rack 61. Through this structure, the lifting link 332 can rotate to fix the telescopic assembly 5, that is, fix the position of the clamping plate assembly 7.

[0045] In other embodiments, the clamping plate assembly 7 includes a fixed connecting rod 71, an upper clamping plate 72, a clamping plate connecting rod 73 and a lower clamping plate 74; the top end of the fixed connecting rod 71 is fixedly mounted on the sliding rod 52, and the bottom end of the fixed connecting rod 71 is fixedly connected to the upper clamping plate 72; one end of the clamping plate connecting rod 73 is passed through the fixed upper clamping plate 72, and the other end of the clamping plate connecting rod 73 is fixedly mounted on the lower clamping plate 74. It should be understood that the lower clamping plate 74 is placed on the bottom plate 1.

[0046] In other embodiments, the upper splint 72 and the lower splint 74 are arc-shaped plates. Setting them as arc-shaped plates can better fit the patient's limbs.

[0047] The above-mentioned amputation fixation device can complete the fixation of the device and the limb through a single piece.

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. An amputation fixation device, characterized in that: It includes a bottom plate, a side fixing plate, a lower clamping assembly, a lifting mechanism, a driving assembly, a telescopic assembly, a locking rod and a clamping plate assembly; The side fixing plate is fixedly arranged on the side surface of the bottom plate, and the lower clamping assembly is liftably arranged on the side fixing plate; The lifting mechanism is movably mounted on the side fixing plate, the driving assembly is slidably mounted on the side fixing plate, and the driving assembly can be fixed in position after sliding; the sliding of the driving assembly can simultaneously drive the lower clamping assembly and the lifting mechanism to move up and down, and can continuously drive the lifting mechanism to move down after the lower clamping mechanism clamps; The telescopic component is arranged at the top end of the lifting mechanism, and a limiting hole is provided on the telescopic component. The locking rod can be inserted into the limiting hole to limit the telescopic component from extending or retracting. The splint component can be extended or retracted, and the telescopic end of the telescopic component is connected to the splint component. The splint component extends or retracts as the lifting component is lifted or lowered.

2. The amputation fixation device according to claim 1, characterized in that: The lower clamping assembly includes a lifting connecting plate, a wedge block, a clamping connecting rod and a lower fixed plate; the lifting connecting plate is slidably connected to the side fixed plate in a liftable manner, the wedge block is arranged on the lifting connecting plate, the clamping connecting rod is arranged on the top of the wedge block, and the lower fixed plate is arranged on the top of the clamping connecting rod, and the sliding of the driving assembly can drive the lifting of the wedge block.

3. The amputation fixation device according to claim 2, characterized in that: The lifting connecting rod is a threaded rod and is screwed on the wedge block.

4. The amputation fixation device according to claim 2, characterized in that: The lifting mechanism includes a lifting fixed plate, a driven gear ring and a lifting component; the lifting fixed plate is fixedly mounted on the side fixed plate, the gear ring is rotatably connected to the lifting fixed plate, the lifting component is liftably mounted on the lifting fixed plate, the telescopic component is mounted on the lifting component, and the driving component can drive the lifting component to move up and down through the driven gear ring.

5. The amputation fixation device according to claim 4, characterized in that: The lifting assembly includes a lifting screw, a lifting connecting rod and a ball bearing; the lifting screw is screwed to the driven gear ring and the lifting fixed plate, the lifting connecting rod is fixed to the lifting screw, and is connected to the telescopic assembly through the ball bearing.

6. The amputation fixation device according to claim 5, characterized in that: The driving assembly includes a driving rack, a rack connecting plate, a sliding plate and a limiting boss; the driving rack is slidably connected to the side fixed plate and meshes with the driven gear ring, and the sliding of the driving rack can drive the wedge block to lift; the rack connecting plate is arranged on the side of the driving rack, and the sliding plate is slidably connected to the rack connecting plate and can slide toward the side of the side fixed plate; a fixing groove is provided on the side of the side fixed plate, and a plurality of limiting bosses are provided on the sliding plate, and the limiting bosses can be inserted into the fixing groove.

7. The amputation fixation device according to claim 6, characterized in that: The telescopic assembly includes a fixed tube, a sliding rod and a sliding tube; the fixed tube is arranged on the ball bearing, the sliding rod is slidably connected in the fixed tube, and is connected to the clamping plate assembly; a plurality of limiting holes are provided on the sliding rod, and the limiting holes are relatively provided on the opposite sides of the fixed tube, the sliding tube is arranged on the fixed tube, the locking rod is slidably connected in the sliding tube, and can pass through the limiting holes of the fixed tube and the sliding rod.

8. The amputation fixation device according to claim 7, characterized in that: The lifting connecting rod is a worm, and is also provided with a worm gear assembly and a driven rack; the worm gear assembly includes a connecting frame, a driven rotating shaft, a turbine body and a driven gear; the connecting frame is fixed on the fixed tube, the driven rotating shaft is rotatably connected to the connecting frame, the worm gear body and the driven gear are coaxially fixed on the driven rotating shaft respectively, the lifting connecting rod can drive the worm gear body to rotate unidirectionally, the driven rack is fixed on the locking rod, and the driven gear and the driven rack are meshed.

9. The amputation fixation device according to claim 8, characterized in that: The splint assembly includes a fixed connecting rod, an upper splint, a splint connecting rod and a lower splint; the top end of the fixed connecting rod is fixed on the sliding rod, and the bottom end of the fixed connecting rod is fixedly connected to the upper splint; one end of the splint connecting rod is passed through the fixed upper splint, and the other end of the splint connecting rod is fixed on the lower splint.

10. The amputation fixation device according to claim 9, characterized in that: The upper clamping plate and the lower clamping plate are arc-shaped plates.

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