Auxiliary reduction device in femoral fracture operation
By designing an auxiliary reduction device for femoral fracture surgery, the adjustment mechanism and the lever principle are used to achieve fracture reduction, which solves the time-consuming and labor-intensive problem of manual reduction in the existing technology and improves the efficiency and safety of the operation.
Patent Information
- Application Number
- CN202420756850.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-12
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-04-12
AI Technical Summary
The prior art requires medical personnel to manually press the fracture site for reduction during femoral fracture surgery, which makes it time-consuming and labor-intensive, and the reduction speed is slow, which is not conducive to the operation.
Design an auxiliary reduction device that includes a connecting rod, a support rod and a reduction rod. The distance and angle between the reduction rod and the support rod are changed through an adjustment mechanism, and the lever principle is used to transmit the force to the fracture to achieve fracture reduction.
Through the use of this device, the operating time and energy of medical staff can be significantly reduced, the reduction speed and efficiency can be improved, it is suitable for different patients' femoral fracture positions, and the efficiency and safety of the operation have been improved.
Smart Images
Figure CN222383335U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of orthopedic surgical instruments, in particular to an auxiliary reduction device during femoral fracture surgery. Background Art
[0002] The femur is the longest bone in the body, divided into two ends. The proximal end has a round femoral head, which is two-thirds of the sphere and points inward and forward, forming a hip joint with the acetabulum. There is a small pit in the center of the femoral head called the femoral fossa, and the narrow part below the femoral head is the femoral neck.
[0003] For patients with femoral fractures, their femurs are generally broken into two sections. The two ends of the femurs after the fracture are generally dislocated. During the internal fixation of femoral fractures, the patient's fracture site needs to be anatomically reduced. Usually, medical personnel use their hands to squeeze the opposite direction of the fracture displacement to reduce the patient's bones. However, this method is time-consuming and labor-intensive for medical personnel, and the reduction speed is slow, which is not conducive to the operation. Therefore, the present invention proposes an auxiliary reduction device for femoral fracture surgery to solve this problem. Utility Model Content
[0004] The utility model aims to provide an auxiliary reduction device for femoral fracture surgery, so as to solve the problem that the prior art requires medical personnel to manually press the femoral fracture site of the patient to reduce it, which is time-consuming and labor-intensive.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] The basic technical solution provided by the utility model is: an auxiliary reduction device during femoral fracture surgery, comprising a connecting rod, a support rod and a reduction rod, the connecting rod is fixedly connected to the support rod, and the connecting rod is connected to the reduction rod by an adjusting mechanism; the adjusting mechanism comprises a first adjusting sleeve and a second adjusting sleeve, the first adjusting sleeve is slidably connected to the connecting rod, the second adjusting sleeve is rotatably connected to the first adjusting sleeve, the reduction rod is fixedly connected to the second adjusting sleeve, the first adjusting sleeve is penetrated by a positioning rod, the positioning rod is connected to the first adjusting sleeve by a tension spring, the connecting rod is provided with multiple groups of positioning holes, and the multiple groups of positioning holes are arrayed on the connecting rod, the positioning rod is clamped with the positioning holes, the first adjusting sleeve and the second adjusting sleeve are respectively rotatably connected to the first adjusting block and the second adjusting block, the first adjusting block is rotatably connected to the adjusting rod, and the adjusting rod is connected to the second adjusting block by a thread.
[0007] The principle of the basic technical solution: the support rod serves as a support, and the positioning rod is pulled to disengage from the limiting hole, thereby driving the second adjusting sleeve to slide through the first adjusting sleeve, thereby changing the distance between the reset rod and the support rod, and the distance between the first adjusting block and the second adjusting block is changed by rotating the adjusting rod, thereby controlling the rotation of the second adjusting sleeve, and thereby changing the angle of the reset rod, and applying a force to the reset rod through the connecting rod, thereby applying a force to the patient's fracture, thereby resetting it or maintaining its reset state.
[0008] The beneficial effects of the basic technical solution are: by changing the distance between the reduction rod and the support rod, and by rotating the adjustment rod to change the angle of the reduction rod, the device can be adaptively adjusted according to the position of the patient's femoral fracture, so that the device is suitable for different patients, thereby improving the scope of application of the device, and by pressing or lifting the connecting rod to make the reduction rod squeeze the patient's fracture site to reduce it. The device is easy to operate, and the distal and proximal fracture ends of the patient are pried and reduced by the lever principle, which saves time and effort and is easy to use.
[0009] Preferably, the connecting rod is slidably connected to a sliding rod, the connecting rod is provided with a threaded hole, the threaded hole is threadedly connected to a knob, the knob is clamped with the sliding rod, the sliding rod is fixedly connected to a handle, and the handle cover is provided with an anti-slip cover.
[0010] Through the above arrangement, the sliding rod is pulled to increase the combined length of the connecting rod and the sliding rod, thereby increasing the power arm, and the sliding rod is fixed by a knob. The medical staff applies a force to the connecting rod through the handle, thereby generating a force on the patient through the reduction rod, so that the medical staff can more easily reduce the patient's fractured femur. The process of reducing the femoral fracture is more labor-saving and time-saving than traditional reduction techniques, and can significantly reduce the radiation exposure time of patients and medical staff.
[0011] Preferably, the positioning rod is fixedly connected with a pull rod.
[0012] Through the above arrangement, the positioning rod is pulled by the pull rod, which provides convenience for the user. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the structure of an auxiliary reduction device for femoral fracture surgery according to the utility model;
[0014] Figure 2 This is the explosion intention of the utility model of an auxiliary reduction device for femoral fracture surgery;
[0015] Figure 3 for Figure 2 The enlarged view of point A in the middle;
[0016] Figure 4 for Figure 1 The enlarged view of point B in the middle;
[0017] 1. Connecting rod; 2. Support rod; 3. First adjustment sleeve; 4. Second adjustment sleeve; 5. Reset rod; 6. Slide rod; 7. Handle; 8. Threaded hole; 9. Knob; 10. Anti-slip sleeve; 11. Positioning hole; 12. First adjustment block; 13. Adjustment rod; 14. Second adjustment block; 15. Positioning rod; 16. Tension spring; 17. Pull rod. DETAILED DESCRIPTION
[0018] The present invention is further described in detail below in conjunction with the accompanying drawings and implementation examples:
[0019] like Figures 1 to 3 As shown, an auxiliary reduction device for femoral fracture surgery includes a connecting rod 1, a supporting rod 2 and a reducing rod 5. The connecting rod 1 is fixedly connected to the supporting rod 2. The connecting rod 1 and the reducing rod 5 are connected through an adjusting mechanism. The adjusting mechanism includes a first adjusting sleeve 3 and a second adjusting sleeve 4. The first adjusting sleeve 3 is slidably connected to the connecting rod 1, and the second adjusting sleeve 4 is rotatably connected to the first adjusting sleeve 3. The reducing rod 5 is fixedly connected to the second adjusting sleeve 4. The first adjusting sleeve 3 is penetrated by a positioning rod 15. The positioning rod 15 is connected to the first adjusting sleeve 3 through a tension spring 16. The positioning rod 15 is fixedly connected to a pull rod 17. The rod 1 is provided with multiple groups of positioning holes 11, and the multiple groups of positioning holes 11 are distributed in an array on the connecting rod 1. The positioning rod 15 is clamped with the positioning hole 11. The first adjustment sleeve 3 and the second adjustment sleeve 4 are respectively rotatably connected with the first adjustment block 12 and the second adjustment block 14. The first adjustment block 12 is rotatably connected with the adjusting rod 13. The adjusting rod 13 and the second adjustment block 14 are connected by threads. The connecting rod 1 is slidably connected with the sliding rod 6. The connecting rod 1 is provided with a threaded hole 8. The threaded hole 8 is connected with a knob 9 by threads. The knob 9 is clamped with the sliding rod 6. The sliding rod 6 is fixedly connected with a handle 7, and the handle 7 is provided with an anti-slip sleeve 10.
[0020] The specific implementation process is as follows:
[0021] When using the present invention, firstly, the positioning rod 15 is pulled out of the positioning hole 11 by the pull rod 17, and the first adjustment sleeve 3 can be slid to drive the reset rod 5 to slide through the second adjustment sleeve 4, thereby changing the distance between the reset rod 5 and the support rod 2, and the positioning rod 15 is loosened to make it stuck in the positioning hole 11, and the first adjustment sleeve 3 is fixed by the tension of the tension spring 16, so that the reset rod 5 is fixed, and then adaptive adjustment is made according to different patients, the reset rod 5 is placed in the opposite direction of the distal displacement of the fracture, and the support rod 2 is placed in a suitable position at the uninjured bone of the patient, and then By rotating the adjusting rod 13, the distance between the first adjusting block 12 and the second adjusting block 14 is changed through threaded cooperation, thereby achieving the effect of changing the angle of the reduction rod 5, thereby improving the fit between the reduction rod 5 and the patient's bones, enhancing the reduction effect of the device, and improving the effectiveness of the operation. The position of the handle 7 is adjusted by pulling the sliding rod 6, and the sliding rod 6 is locked by turning the knob 9 to change the length of the force arm. The handle 7 is pressed or lifted by the anti-slip sleeve 10 to apply a force to the connecting rod 1, so that the patient's fracture is pried through the reduction rod 5, thereby assisting its reduction or maintaining its reduction state.
[0022] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical scheme or characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the technical scheme of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.
Claims
1. A device for assisting reduction of femoral fracture during surgery, characterized in that: It comprises a connecting rod (1), a supporting rod (2) and a reset rod (5), wherein the connecting rod (1) is fixedly connected to the supporting rod (2), and the connecting rod (1) is connected to the reset rod (5) via an adjusting mechanism; The adjustment mechanism comprises a first adjustment sleeve (3) and a second adjustment sleeve (4); the first adjustment sleeve (3) is slidably connected to the connecting rod (1); the second adjustment sleeve (4) is rotatably connected to the first adjustment sleeve (3); the reset rod (5) is fixedly connected to the second adjustment sleeve (4); the first adjustment sleeve (3) is provided with a positioning rod (15); the positioning rod (15) is connected to the first adjustment sleeve (3) through a tension spring (16); the connecting rod (1) is provided with a plurality of groups of positioning holes (11); the plurality of groups of positioning holes (11) are arrayed on the connecting rod (1); the positioning rod (15) is engaged with the positioning holes (11); the first adjustment sleeve (3) and the second adjustment sleeve (4) are rotatably connected to a first adjustment block (12) and a second adjustment block (14) respectively; the first adjustment block (12) is rotatably connected to an adjustment rod (13); the adjustment rod (13) and the second adjustment block (14) are connected by threads.
2. The device for assisting reduction of femoral fracture during surgery according to claim 1, characterized in that: The connecting rod (1) is slidably connected to a slide rod (6), the connecting rod (1) is provided with a threaded hole (8), the threaded hole (8) is threadedly connected to a knob (9), the knob (9) is clamped with the slide rod (6), the slide rod (6) is fixedly connected to a handle (7), and the handle (7) is provided with an anti-slip sleeve (10).
3. The device for assisting reduction of femoral fracture during surgery according to claim 1, characterized in that: The positioning rod (15) is fixedly connected to a pull rod (17).