Movable clamping anti-shake device of acetabulum file

Abstract

The utility model discloses a movable clamping anti-shake device of acetabulum file relates to medical instrument technical field, including holding rod and acetabulum file rod handle, the top of holding rod is rotatingly connected with rotating shaft no. 1, the top of rotating shaft no. 1 is rotatingly connected with rotating shaft no. The side, close to the holding rod, of the second rotating shaft is rotationally connected with a third rotating shaft, and the first rotating shaft, the second rotating shaft and the third rotating shaft are used for preventing the acetabulum file rod handle from shaking. The acetabulum file has the main advantages that through the first rotating shaft, the second rotating shaft, the third rotating shaft, the three-axis acceleration sensor and the three-axis gyroscope, when it is detected that the posture of the holder is unstable or drifting occurs, the motion trail of the acetabulum file rod handle is controlled in real time through the multiple servo motors fixed to the rotating shafts; errors caused by drifting of a file rod or shaking of an operation hand are reduced, so that the precision and the success rate of an operation are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field especially, relates to a movable clamping and fixing anti-shake device of acetabulum reamer. BACKGROUND

[0002] Acetabulum reamer is an important surgical instrument, mainly used for accurate finishing of acetabulum in hip joint replacement surgery. Acetabulum reamer can accurately finish acetabulum, remove irregular parts of acetabular bone, so that it can better adapt to the cup. Through the finishing of acetabulum reamer, the doctor can ensure that the cup perfectly matches the acetabulum of the patient, thereby improving the success rate of the operation and the rehabilitation effect of the patient.

[0003] In the existing use of acetabulum reamer, when dealing with acetabulum in total hip arthroplasty, the acetabulum reamer ball-shaped cutter shell will be subjected to non-axial lateral stress when encountering uneven acetabulum, causing the acetabulum reamer handle to shake and even swing, which makes the acetabulum reamer cannot be operated according to the principle of concentricity and same direction, and the surgeon is difficult to correct subjectively, resulting in the acetabulum inner wall being not ideal, which ultimately affects the operation effect.

[0004] To solve the problem that acetabulum reamer cannot be operated according to the principle of concentricity and same direction in the prior art, a control holder is arranged outside the acetabulum reamer, and the shaking and swinging of the acetabulum reamer handle are balanced through the cooperation of the rotating shaft and the servo motor. The control holder can accurately control the motion trail of the acetabulum reamer, reduce the error caused by the swinging of the handle or the shaking of the operator's hand, thereby improving the precision and success rate of the operation.

[0005] However, in the use of the acetabulum reamer controlled by the holder, when the acetabulum needs to be polished, the holder still needs to be manually moved by hand, which will cause the polishing of the acetabulum to be not accurate enough. Inaccurate polishing will directly affect the operation effect, which may cause poor cooperation between the acetabulum and the implant, thereby affecting the rehabilitation of the patient and the quality of life after the operation. UTILITY MODEL CONTENT

[0006] The utility model aims at solving the defects in the prior art and provides a movable clamping and fixing anti-shake device of acetabulum reamer, which solves the problem that the acetabulum reamer cannot be operated according to the principle of concentricity and same direction during the operation.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0008] The application discloses a movable clamping anti-shaking device of an acetabulum file, which comprises a holding rod and an acetabulum file shank, a rotating shaft one is rotationally connected to the top end of the holding rod, a rotating shaft two is rotationally connected to the top of the rotating shaft one close to the side of the acetabulum file shank, and a rotating shaft three is rotationally connected to the side of the rotating shaft two close to the holding rod, and the rotating shaft one, the rotating shaft two and the rotating shaft three are used for preventing the acetabulum file shank from shaking.

[0009] As a further improvement of the utility model, the acetabulum file shank is externally sleeved with a sleeve, and the acetabulum file shank is fixedly connected with a file head at the end away from the holding rod. Thus, the acetabulum file shank can be protected.

[0010] As a further improvement of the utility model, the rotating shaft three is rotationally connected with a fixed block at the side away from the rotating shaft one, the fixed block is provided with a movable block at the side away from the rotating shaft three, the movable block is fixedly connected with a threaded rod at the side close to the fixed block, and the threaded rod is threadedly connected in the fixed block. Thus, the movable block can be quickly replaced.

[0011] As a further improvement of the utility model, the movable block is provided with a close block at the side away from the fixed block, two screws are symmetrically threadedly connected to the close block at the side away from the movable block, and the screws are threadedly connected in the movable block at the end close to the movable block. Thus, the sleeve can be fixed.

[0012] As a further improvement of the utility model, the top end and the side surface of the fixed block are fixedly connected with a three-axis acceleration sensor and a three-axis gyroscope respectively, and a servo motor is arranged at the side close to the inside of the intersection of the rotating shaft one, the rotating shaft two and the rotating shaft three. Thus, the position, speed and steering of the motor can be accurately controlled according to input signals, which is crucial for realizing the accurate movement and positioning of the holding rod.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1、By rotating shaft one, rotating shaft two, rotating shaft three, three-axis acceleration sensor and three-axis gyroscope, the feedback system composed of three-axis acceleration sensor and three-axis gyroscope monitors the attitude change of the acetabular reamer handle, and transmits these information to the servo motor, the servo motor adjusts the attitude of the acetabular reamer handle according to the received instructions, ensures its attitude stability in working state. This structure makes the holder can provide stable fixed clamping effect in various motion states, and then the holder is controlled by the pre-set program, when the unstable posture of the holder is detected or the tail is detected, the movement trajectory of the acetabular reamer handle is controlled by the multiple servo motors of the fixed and rotating shaft in real time, the error caused by the tail of the reamer or the shaking of the operator is reduced, so as to improve the precision and success rate of the operation. Moreover, long time operation often makes the doctor feel tired, the use of the holder can reduce the operation burden of the doctor, so that the doctor can pay more attention to the operation itself and improve the operation efficiency. More accurate and stable operation means less trauma and faster recovery time, so as to improve the operation experience and satisfaction of the patient. By balancing the shaking and tail of the acetabular reamer handle, the holder can also reduce the uncertainty and risk in the operation process, so as to ensure the safety and reliability of the operation.

[0015] 2、By moving block, fitting block, acetabular reamer handle and sleeve, the acetabular reamer handle is fixed by the moving block and the fitting block, but the acetabular reamer handle may be damaged by the moving block and the fitting block alone, the sleeve is sleeved outside the acetabular reamer handle, so as to protect the acetabular reamer handle, the combination of the moving block and the fitting block can ensure the stability of the acetabular reamer handle during the operation, prevent it from shaking or shifting, which is very important for accurately grinding the acetabulum. Moreover, the introduction of the sleeve also provides an additional protective layer for the acetabular reamer handle. During the operation, the acetabular reamer handle may be subjected to forces and friction from different directions, the presence of the sleeve can effectively reduce the direct impact of these external factors on the handle, thereby reducing the risk of damage to the handle. Due to the protection of the sleeve, the wear degree of the acetabular reamer handle will be greatly reduced, which helps to prolong its service life, reduce the replacement frequency, and thus reduce the medical cost. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is another angle of the structural schematic diagram of the utility model.

[0018] Figure 3 It is a structural schematic diagram of the acetabular reamer handle, sleeve and reamer head in the utility model.

[0019] Figure 4 It is a structural schematic diagram of the holding rod and servo motor in the utility model.

[0020] Figure 5 It is the profile structure schematic view of fixed block, movable block and fitting block in the utility model.

[0021] In the figure: 101, holding rod; 102, rotating shaft one; 103, rotating shaft two; 104, rotating shaft three; 105, servo motor; 106, three-axis acceleration sensor; 107, three-axis gyroscope; 201, fixed block; 202, movable block; 203, fitting block; 204, screw; 205, threaded rod; 301, acetabular reamer handle; 302, sleeve; 303, reamer head. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model are described in detail below. In the following description, a lot of specific details are set forth in order to fully understand the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0023] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there can be a middle element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or there can be a middle element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only implementation.

[0024] As shown in the figure, a movable clamping anti-shake device of acetabular reamer includes rotating shaft one 102, rotating shaft two 103, rotating shaft three 104, servo motor 105, three-axis acceleration sensor 106 and three-axis gyroscope 107.

[0025] First, place the acetabular reamer handle 301 to fit with the arc-shaped movable block 202, then cover the arc-shaped fitting block 203 to the surface of the acetabular reamer handle 301, and then fix the acetabular reamer handle 301 through the threaded connection of the screw 204 and the movable block 202 and the fitting block 203. When the acetabular reamer handle 301 is fixed, rotate the threaded rod 205 fixed on the back of the movable block 202 to the surface of the fixed block 201, so that the same device can replace the detection device and the acetabular reamer. The same device can be compatible with the detection device and the acetabular reamer, which means that the doctor does not need to replace the entire device during the operation, but only needs to quickly replace the corresponding parts. Therefore, this greatly saves the operation time and improves the operation efficiency.

[0026] Further, when the acetabulum file handle 301 is fixed, when the acetabulum file handle 301 is detected to shake, spin or the acetabulum inner wall shape is detected to be inconsistent with the concentric circle by the three-axis acceleration sensor 106 and the three-axis gyroscope 107, through the preset system program, then the signal is transmitted to the three servo motors 105, so that the servo motor 105 controls the rotation between the rotating shaft one 102, the rotating shaft two 103 and the rotating shaft three 104, thereby always ensuring that the acetabulum file handle 301 is in a balanced state, so as to reduce the error caused by the file spin or the operator's hand shake, thereby improving the precision and success rate of the operation. Moreover, long-time operation often makes the doctor feel tired, and the use of the control holder can reduce the operation burden of the doctor, so that the doctor can pay more attention to the operation itself and improve the operation efficiency.

[0027] Further, when it is necessary to replace the acetabulum file handle 301 according to the size of the acetabulum of different people, the movable block 202 is rotated in the opposite direction, thereby driving the threaded rod 205 away from the fixed block 201, then the movable block 202 of other models is replaced to the fixed block 201 through the threaded rod 205 and tightened, thereby achieving the effect of quickly replacing the acetabulum file handle 301 fixed by the holder. The quick replacement of the acetabulum file handle 301 can significantly reduce the preparation time in the operation, so that the doctor can pay more attention to the operation itself. Moreover, during the operation, according to the specific situation of the patient and the progress of the operation, the doctor may need acetabulum files of different shapes, sizes or materials. The quick replacement function enables the doctor to quickly adjust the surgical tools to adapt to different surgical needs, thereby improving the flexibility and adaptability of the operation.

[0028] Further, when it is necessary to start polishing the acetabulum of the patient, the acetabulum of the patient can be polished by the file head 303. When it is necessary to control the file head 303 to advance forward for polishing, the signal of the doctor's manual advancement is detected by the three-axis acceleration sensor 106 and the three-axis gyroscope 107, and the signal is transmitted to the servo motor 105, thereby driving the rotating shaft one 102, the rotating shaft two 103 and the rotating shaft three 104 to be smoothly controlled by the start of the multiple servo motors 105, and then the hand-held holding rod 101 polishes the acetabulum of the patient, thereby achieving the effect of manually advancing the file head 303 forward. The three-axis acceleration sensor 106 and the three-axis gyroscope 107 can monitor and capture the slight movements and posture changes of the doctor when holding the holding rod, and convert these changes into electrical signals and transmit them to the servo motor 105. The servo motor 105 accurately responds to the received signals, and through the cooperation of the rotating shaft one 102, the rotating shaft two 103 and the rotating shaft three 104, the precise control of the file head 303 advancing forward is realized, thereby enabling the doctor to more carefully perceive and adjust the position and force of the file head during the operation, thereby improving the precision and safety of the operation.

[0029] The above merely describes a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any skilled person in the art, according to the technical scheme and the inventive concept of the present application, can make equivalent substitutions or changes within the technical range disclosed by the present application, which should be covered within the scope of protection of the present application.

Claims

1. A movable clamping anti-shaking device of an acetabular reamer, comprising a holding rod (101) and an acetabular reamer handle (301), characterized in that, The top end of the holding rod (101) is rotationally connected with a rotating shaft one (102), the top of the rotating shaft one (102) is rotationally connected with a rotating shaft two (103) near the acetabulum reamer rod handle (301) side, the rotating shaft two (103) is rotationally connected with a rotating shaft three (104) near the holding rod (101) side, the rotating shaft one (102), the rotating shaft two (103) and the rotating shaft three (104) are used for preventing the acetabulum reamer rod handle (301) from shaking.

2. The mobile clamping anti-shaking device of the acetabulum reamer according to claim 1, wherein, The outside of the acetabulum reamer rod handle (301) is sleeved with a sleeve (302), and the end of the acetabulum reamer rod handle (301) away from the holding rod (101) is fixedly connected with a reamer head (303).

3. The mobile clamping anti-shaking device of the acetabulum reamer according to claim 1, wherein, The side of the rotating shaft three (104) away from the rotating shaft one (102) is rotationally connected with a fixed block (201), the side of the fixed block (201) away from the rotating shaft three (104) is provided with a movable block (202), the side of the movable block (202) near the fixed block (201) is fixedly connected with a threaded rod (205), and the threaded rod (205) is threadedly connected in the inside of the fixed block (201).

4. The removable clamping anti-shaking device of the acetabulum reamer according to claim 3, characterized in that, The side of the movable block (202) away from the fixed block (201) is provided with a fitting block (203), the side of the fitting block (203) away from the movable block (202) is symmetrically threadedly connected with two screws (204) up and down, and the end of the screw (204) near the movable block (202) is threadedly connected in the inside of the movable block (202).

5. The removable clamping anti-shaking device of the acetabulum reamer according to claim 4, wherein, The top end and the side of the fixed block (201) are fixedly connected with a three-axis acceleration sensor (106) and a three-axis gyroscope (107) respectively, and the intersection of the rotating shaft one (102), the rotating shaft two (103) and the rotating shaft three (104) is provided with a servo motor (105) near the inside side.

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