Novel femoral stem prosthesis driver

Abstract

The utility model relates to the technical field of femoral stem prosthesis driving, in particular to a novel femoral stem prosthesis driving device which comprises a handheld device and a rotating device, symmetrical sliding ways are arranged at the upper end of the handheld device, sliding strips are arranged in the sliding ways, a fixing box is arranged at the upper end of one of the sliding ways, and the rotating device is arranged in the fixing box. A spring, a moving rod, a moving block and a locking block are arranged in the fixing box, a supporting plate is arranged on the back side wall of the sliding strip, a fixing frame is arranged on the front side wall of the supporting plate, a rotating rod is arranged in the fixing frame, a motor is arranged on one side of the fixing frame, and a driving device is arranged at the front end of the rotating rod. A driving head is arranged at the front end of the driving device, a femoral stem can be adjusted, the angle can be conveniently adjusted according to needs, the handheld device and the driving device can be conveniently mounted or dismounted, medical staff can conveniently hold the handheld device for use, the use effect is improved, and therefore the later effect of the femoral head replacement prosthesis is improved, and the service life of the femoral head replacement prosthesis is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of femoral stem prosthesis driving, in particular to a novel femoral stem prosthesis driving device. Background Art

[0002] As is known to all, the existing artificial hip replacement surgery mainly implants an artificial hip prosthesis into the human hip joint through a hip joint installation device, so as to achieve the purpose of eliminating the patient's pain. The hip prosthesis is used to replace the human hip joint. The surgical process includes inserting the femoral stem prosthesis into the femoral medullary cavity and installing the acetabulum and liner in the acetabulum to achieve the function of the hip joint. The installation of the femoral stem prosthesis requires the cooperation of instruments.

[0003] The existing femoral stem prosthesis injector is not convenient to hold during use, and it is somewhat difficult to use it only by hand strength. In addition, the insertion angle is not convenient to control, and the angle of insertion into the medullary cavity may deviate, thereby affecting the later effect and service life of the femoral head replacement prosthesis, resulting in high limitations in its use. Therefore, a new femoral stem prosthesis injector is proposed. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies of the prior art, the utility model provides a novel femoral stem prosthesis injector.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel femoral stem prosthesis injector, comprising a handheld device and a rotating device, wherein a symmetrical slideway is arranged at the upper end of the handheld device, a slide bar is arranged inside the slideway, the slide bar passes through the slideway, and the slideway is slidably connected to the slide bar, wherein a fixed box is arranged at the upper end of one of the slideways, a spring, a moving rod, a moving block and a locking block are arranged inside the fixed box, the moving block is on the bottom wall of the fixed box and is slidably connected thereto, one end of the spring is connected to the inner side wall of the fixed box, the other end of the spring is connected to the moving block, the upper end of the moving rod passes through the upper wall of the fixed box The side wall, the lower end of the moving rod is connected to the moving block, the spring surrounds the moving rod, the locking block is on a side wall of the moving block away from the spring, a fixing hole is provided on the slideway, a sliding hole is provided on the slide bar, the locking block passes through the fixing hole and the sliding hole and is slidably connected thereto, a support plate is provided on the back side wall of the slide bar, a fixing frame is provided on the front side wall of the support plate, a rotating rod is provided in the fixing frame, a motor is provided on one side of the fixing frame, the rotating rod passes through the fixing frame and is connected to the output end of the motor, a driving device is provided at the front end of the rotating rod, and a driving head is provided at the front end of the driving device.

[0008] In order to facilitate the control and fixation of the locking block, the utility model has the following improvements: a first limiting hole is provided at the lower end of the side wall of the fixed box, and a second limiting hole is provided at the side wall of the movable block, the first limiting hole and the second limiting hole can overlap, a limiting rod is provided in the first limiting hole, and the limiting rod passes through the first limiting hole and the second limiting hole and is slidably connected thereto.

[0009] In order to facilitate observation of the position of the femoral stem, the utility model has the following improvements: a miniature camera is arranged on the upper end of the insertion head.

[0010] In order to facilitate hand-held pulling of the moving rod, the utility model is improved in that a hand-held block is arranged at one end of the moving rod away from the moving block.

[0011] In order to facilitate the hand-held installation of the support plate, the utility model is improved in that: a handle is provided on the side wall of the support plate, and anti-slip grooves are provided on the handle.

[0012] In order to facilitate the placement and support of the handheld device and prevent it from tipping over, the utility model has the following improvements: a base is arranged at the lower end of the handheld device.

[0013] In order to prevent the slide bar from sliding down in the slideway, the utility model is improved in that: a sealing plate is arranged at the lower end of the slideway, and the sealing plate is adapted to the slide bar.

[0014] In order to facilitate the hand-held installation or removal of the limit rod, the utility model is improved in that a mounting block is arranged at the upper end of the limit rod.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a new type of femoral stem prosthesis inserter, which has the following beneficial effects:

[0017] The novel femoral stem prosthesis inserter is provided with a motor and a rotating rod. The motor output can drive the rotating rod to rotate, and the rotating rod drives the inserting device to rotate, so that the femoral stem can be adjusted, and the angle can be adjusted according to needs. A handpiece and a slideway are provided, and the slide bar passes through the slideway, and a spring is used to drive the moving block to move. The moving block drives the locking block to move, so that the locking block can pass through or be separated from the fixed hole and the sliding hole, so that the handpiece and the inserting device can be installed or disassembled conveniently, and medical staff can use it by hand, and can assist the use of medical staff, provide a certain amount of force, and improve the use effect, thereby improving the later effect and service life of the femoral head replacement prosthesis. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model from the first perspective;

[0019] Figure 2 This is a schematic diagram of the structure of the utility model from a second viewing angle;

[0020] Figure 3 This is a schematic diagram of the structure of the utility model from a third viewing angle;

[0021] Figure 4 This is an exploded schematic diagram of the slideway, slide bar and fixing box of the utility model structure.

[0022] In the figure: 1. Handheld device; 2. Base; 3. Driving device; 4. Mini camera; 5. Slide; 6. Driving head; 7. Fixed box; 8. Motor; 9. Fixed frame; 10. Slide bar; 11. Support plate; 12. Rotating rod; 13. Handle; 14. Spring; 15. Moving block; 16. Locking block; 17. Moving rod; 18. Limit rod; 19. Handheld block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4A novel femoral stem prosthesis inserter comprises a handheld device 1 and a rotating device, wherein a symmetrical slideway 5 is arranged at the upper end of the handheld device 1, a slide bar 10 is arranged in the slideway 5, the slide bar 10 runs through the slideway 5, the slideway 5 is slidably connected with the slide bar 10, a fixed box 7 is arranged at the upper end of one of the slideways 5, a spring 14, a moving rod 17, a moving block 15 and a locking block 16 are arranged in the fixed box 7, the moving block 15 is on the bottom wall of the fixed box 7 and is slidably connected thereto, one end of the spring 14 is connected to the inner side wall of the fixed box 7, the other end of the spring 14 is connected to the moving block 15, the upper end of the moving rod 17 runs through the upper side wall of the fixed box 7, the lower end of the moving rod 17 is connected to the moving block 15, the spring 14 surrounds the moving rod 17, the locking block 16 is on the side wall of the moving block 15 away from the spring 14, a fixing hole is arranged on the slide bar 10 There is a sliding hole, the locking block 16 passes through the fixed hole and the sliding hole and is slidably connected thereto, a support plate 11 is provided on the back side wall of the slide bar 10, a fixed frame 9 is provided on the front side wall of the support plate 11, a rotating rod 12 is provided in the fixed frame 9, a motor 8 is provided on one side of the fixed frame 9, the rotating rod 12 passes through the fixed frame 9 and is connected to the output end of the motor 8, a driving device 3 is provided at the front end of the rotating rod 12, and a driving head 6 is provided at the front end of the driving device 3, a first limiting hole is provided at the lower end of the side wall of the fixed box 7, a second limiting hole is provided on the side wall of the moving block 15, the first limiting hole and the second limiting hole can overlap, a limiting rod 18 is provided in the first limiting hole, the limiting rod 18 passes through the first limiting hole and the second limiting hole and is slidably connected thereto, a micro camera 4 is provided on the upper end of the driving head 6, and a handheld block 19 is provided at the end of the moving rod 17 away from the moving block 15.

[0025] During use, the hand-held block 19 is pulled, and the moving rod 17 moves with the hand-held block 19. The spring 14 contracts under the condition of external force, and the moving block 15 moves with the movement of the moving rod 17. The locking block 16 moves with the moving block 15, and the locking block 16 is separated from the fixed hole. The slide bar 10 is aligned with the slideway 5, and the slide bar 10 is forced to penetrate the slideway 5. After that, the hand-held block 19 is released, and the spring 14 stretches without external force, driving the moving block 15 to move, and the locking column moves with the moving block 15 until it penetrates the fixed hole. The first limit hole and the second limit hole coincide with the sliding hole. The limit rod 18 is passed through the first limit hole and the second limit hole for fixation. The handheld device can be used to use the driving head 6 to drive the femoral stem to move. The handheld device 1 can be used for hand-held leverage. The micro camera 4 detects the position of the femoral stem and transmits the signal to the motor 8. The output of the motor 8 drives the rotating shaft to rotate, so that the rotating shaft can drive the driving head 6 to move and adjust, which is convenient for use. The driving device 3 and the driving head 6 are mature technologies well known to technicians and will not be elaborated in this article.

[0026] In actual use, it is necessary to conveniently hold and pull the support plate 11 . In order to meet the above requirement, in this embodiment, a handle 13 is provided on the upper side wall of the support plate 11 , and anti-slip grooves are provided on the handle 13 .

[0027] In actual use, the handheld device 1 needs to be conveniently placed and supported. In order to meet the above requirement, in this embodiment, a base 2 is provided at the lower end of the handheld device 1.

[0028] In actual use, it is necessary to prevent the slide bar 10 from sliding down in the slideway 5 . In order to meet the above requirement, in this embodiment, a sealing plate is provided at the lower end of the slideway 5 , and the sealing plate is adapted to the slide bar 10 .

[0029] In actual use, it is necessary to facilitate the hand-held installation of the limiting rod 18. In order to meet the above requirement, in this embodiment, a mounting block is provided on the upper end of the limiting rod 18.

[0030] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel femoral stem prosthesis inserter, comprising a hand-held device (1) and a rotating device, characterized in that: A symmetrical slideway (5) is arranged at the upper end of the handheld device (1), a slide bar (10) is arranged inside the slideway (5), the slide bar (10) passes through the slideway (5), the slideway (5) is slidably connected to the slide bar (10), a fixed box (7) is arranged at the upper end of one of the slideways (5), a spring (14), a moving rod (17), a moving block (15) and a locking block (16) are arranged inside the fixed box (7), the moving block (15) is on the bottom wall of the fixed box (7) and is slidably connected thereto, one end of the spring (14) is connected to the inner side wall of the fixed box (7), the other end of the spring (14) is connected to the moving block (15), the upper end of the moving rod (17) passes through the upper side wall of the fixed box (7), the lower end of the moving rod (17) is connected to the moving block (15), The spring (14) surrounds the moving rod (17); the locking block (16) is on a side wall of the moving block (15) away from the spring (14); a fixing hole is provided on the slideway (5); a sliding hole is provided on the slide bar (10); the locking block (16) penetrates the fixing hole and the sliding hole and is slidably connected thereto; a support plate (11) is provided on the back side wall of the slide bar (10); a fixing frame (9) is provided on the front side wall of the support plate (11); a rotating rod (12) is provided in the fixing frame (9); a motor (8) is provided on one side of the fixing frame (9); the rotating rod (12) penetrates the fixing frame (9) and is connected to the output end of the motor (8); a driving device (3) is provided at the front end of the driving device (3); a driving head (6) is provided at the front end of the driving device (3).

2. A novel femoral stem prosthesis inserter according to claim 1, characterized in that: A first limiting hole is arranged at the lower end of the side wall of the fixed box (7), and a second limiting hole is arranged at the side wall of the movable block (15). The first limiting hole and the second limiting hole can overlap each other. A limiting rod (18) is arranged in the first limiting hole. The limiting rod (18) passes through the first limiting hole and the second limiting hole and is slidably connected thereto.

3. A novel femoral stem prosthesis inserter according to claim 2, characterized in that: A micro camera (4) is arranged at the upper end of the driving head (6).

4. A novel femoral stem prosthesis inserter according to claim 3, characterized in that: A hand-held block (19) is provided at one end of the moving rod (17) away from the moving block (15).

5. A novel femoral stem prosthesis inserter according to claim 4, characterized in that: A handle (13) is provided on the upper side wall of the support plate (11), and the handle (13) is provided with anti-slip grooves.

6. A novel femoral stem prosthesis inserter according to claim 5, characterized in that: A base (2) is provided at the lower end of the handheld device (1).

7. A novel femoral stem prosthesis inserter according to claim 6, characterized in that: A sealing plate is provided at the lower end of the slideway (5), and the sealing plate is adapted to fit the slide bar (10).

8. A novel femoral stem prosthesis inserter according to claim 7, characterized in that: The upper end of the limiting rod (18) is provided with a mounting block.

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