Femoral fracture reduction steel wire guiding device
By designing a femoral fracture reduction wire guide containing the main clamp hook, auxiliary clamp hook and mobile reduction mechanism, the problem of insufficient complex operation and precision control in the prior art is solved, and rapid and safe fracture reduction and fixation are achieved, improving the Surgical efficiency and safety.
Patent Information
- Application Number
- CN202323568065.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-27
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2033-12-27
AI Technical Summary
The prior art has complex, inconvenient and lack of precision control in femoral fracture reduction and wire guide operation, resulting in long surgery time, large incision length, many soft tissue damage, high chance of fracture non-unification and increased surgical risk.
A femoral fracture reduction wire guide including a main clip hook, an auxiliary clip hook and a mobile reduction mechanism is designed. The fracture reduction and wire fixation are achieved by using a screw and a handwheel through a first threading groove, a second threading groove and a disconnection groove. , simplify operation and improve accuracy.
It realizes rapid reduction and fixation of fractures, reduces surgical time and soft tissue damage, improves the practicality and safety of the operation, and enhances work efficiency and precision control.
Smart Images
Figure CN222341284U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fracture reduction wire guides, in particular to a surgical tool with both femoral fracture reduction and wire guide functions. Background Art
[0002] The femur is the longest tubular bone in the human body. When a femur fracture occurs, surgery is usually required for reduction and internal fixation to restore the function of the femur. For fractures with obvious displacement or comminuted fractures, reduction forceps are currently required to assist in reduction, wire guides are used to guide wire binding and fixation, and then steel plates or intramedullary nails are used to fix the fracture. Current domestic and foreign literature reports show that these two steps require two instruments, reduction forceps and wire guides, and they need to be completed in two operations, which greatly increases the operation time, incision length, and soft tissue stripping damage, and increases the probability of fracture nonunion and surgical risks. In addition, there are some problems with existing wire guides, such as complex operation, inconvenient use, lack of precision control, etc. Therefore, the above methods are not very practical and safe.
[0003] Therefore, it is necessary to provide a femoral fracture reduction guide that can both achieve fracture reduction and guide the steel wire to solve the above technical problems. Utility Model Content
[0004] The utility model aims to provide a femoral fracture reduction wire guide, which adopts a movable reduction mechanism, a first threading groove, a second threading groove and a wire release groove, and has the effect of facilitating the limited binding and fixing of the femur by means of a wire.
[0005] The above-mentioned technical purpose of the utility model is achieved through the following technical scheme: a femoral fracture reduction wire guide, including a main clamp hook and a secondary clamp hook, the main clamp hook is provided with a first threading hole, the first threading hole is connected to open a first through groove, the first through groove extends from the first threading hole to the tip of the main clamp hook; the secondary clamp hook is provided with a second threading hole, the second threading hole is connected to open a second through groove, the second through groove extends from the second threading hole to the groove portion of the secondary clamp hook; when the tip and the end of the groove portion are in contact, the first through groove is connected to the second through groove, the top of the main clamp hook and the secondary clamp hook are both provided with a de-wire groove, the de-wire groove is connected to the first through groove and the second through groove, and a movable resetting mechanism is arranged between the main clamp hook and the secondary clamp hook.
[0006] Furthermore, the inner diameters of the first through groove, the second through groove, the first threading hole and the second threading hole are all set to 1.4 mm, and the width of the de-threading groove is set to 0.8 mm.
[0007] Furthermore, the movable resetting mechanism includes a screw rod, which passes through the side wall of the main clamp hook and is threadedly connected to the main clamp hook, one end of the screw rod is rotatably connected to one end of the auxiliary clamp hook, and a limiting groove is provided on the side wall of the main clamp hook. A limiting block is slidably installed inside the limiting groove, and a connecting plate is fixedly connected to the side wall of the limiting block, and one end of the connecting plate is fixedly connected to the auxiliary clamp hook.
[0008] Furthermore, a hand wheel is fixedly mounted on one end of the screw rod.
[0009] Furthermore, the side wall of the hand wheel is provided with anti-slip grooves.
[0010] Furthermore, the inner sides of the main clamping hook and the auxiliary clamping hook are provided with a plurality of anti-slip stripes, and a first through groove is provided in communication therewith.
[0011] In summary, the utility model has the following beneficial effects: the utility model first separates the main clamp hook and the auxiliary clamp hook by moving the reset mechanism, and then places the main clamp hook to the position of the femur where the fracture needs to be bound, and then moves the groove portion of the auxiliary clamp hook toward the tip portion of the main clamp hook by moving the reset mechanism, thereby restricting the bone to the inner side of the main clamp hook and the auxiliary clamp hook, completing the fracture reduction and temporary fixation. At this time, the first through-groove and the second through-groove are connected, and then one end of the thicker steel wire is connected to the thinner steel wire, and the steel wire at the thicker end is first passed through the first threading hole and the first threading groove, and then passed out from the first threading hole at the other end, and passed through the corresponding The connected second threading hole passes through the second threading groove and comes out from the second threading hole at the other end, thus forming a loop. Since the size of the thicker steel wire is larger than the wire stripping groove and smaller than the first threading groove and the second threading groove, the thicker steel wire cannot come out from the wire stripping groove and can only pass through the threading groove and the threading hole, thereby guiding the thinner steel wire into the loop. Since the size of the thinner steel wire is the same as or smaller than the groove width of the wire stripping groove, it can directly come out through the wire stripping groove, and the binding, tightening and fixation of the femur can be achieved without moving the main clamp hook and the auxiliary clamp hook, thereby increasing the practical performance and work efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0013] Figure 2 A schematic diagram of a three-dimensional structure from another viewing angle of the present invention;
[0014] Figure 3 It is a schematic diagram of the top structure of the utility model.
[0015] In the figure: 1. main clamping hook; 2. auxiliary clamping hook; 3. first threading hole; 4. first through-groove; 5. second through-groove; 6. second threading hole; 7. de-threading groove; 8. connecting plate; 9. limit block; 10. limit groove; 11. hand wheel; 12. screw; 13. anti-slip pattern; 101. tip; 201. groove; 202. anti-slip stripe. DETAILED DESCRIPTION
[0016] The present invention will be further described below with reference to the accompanying drawings in the embodiments of the present invention.
[0017] See also Figures 1 to 3 In an embodiment of the utility model, a femoral fracture reduction wire guide comprises a main clamp hook 1 and a secondary clamp hook 2, wherein the main clamp hook 1 is provided with a first threading hole 3, the first threading hole 3 is connected to open a first through groove 4, the first through groove 4 extends from the first threading hole 3 to the tip 101 of the main clamp hook 1; the secondary clamp hook 2 is provided with a second threading hole 6, the second threading hole 6 is connected to open a second through groove 5, the second through groove 5 extends from the second threading hole 6 to the groove portion 201 of the secondary clamp hook 2; when the tip 101 and the end of the groove portion 201 are in contact, the first through groove 4 is connected to the second through groove 5, the top of the main clamp hook 1 and the secondary clamp hook 2 are both provided with a de-threading groove 7, the de-threading groove 7 is mutually connected with the first through groove 4 and the second through groove 5, and a moving resetting mechanism is arranged between the main clamp hook 1 and the secondary clamp hook 2; firstly, the main clamp hook 1 and the secondary clamp hook 2 are separated by the moving resetting mechanism, and then the main clamp hook 1 is placed The main clamp hook 1 and the auxiliary clamp hook 2 are then moved to contact each other by moving the reset mechanism, so that the first threading hole 3 at one end of the main clamp hook 1 is connected with the second threading hole 6 at one end of the auxiliary clamp hook 2, and then the thicker steel wire is connected to the thinner steel wire. The thicker steel wire is first passed through the first threading hole 3, the first through-groove 4, the second through-groove 5, and comes out of the second threading hole 6, so that a loop can be formed. The wire groove 7 is large, smaller than the first wire groove and the second wire groove, so the thicker steel wire cannot escape from the wire groove 7, and can only pass through the wire groove and the wire hole, thereby guiding the thinner steel wire into the loop. Since the size of the thinner steel wire is the same as or smaller than the groove width of the wire groove 7, it can directly escape through the wire groove 7, and the binding, tightening and fixation of the femur can be achieved without moving the main clamp hook 1 and the auxiliary clamp hook 2, thereby increasing the practical performance and work efficiency of the device.
[0018] In this embodiment, preferably, the movable resetting mechanism includes a screw rod 12, the screw rod 12 passes through the side wall of the main clamp hook 1 and is threadedly connected to the main clamp hook 1, one end of the screw rod 12 is rotatably connected to one end of the auxiliary clamp hook 2, and the side wall of the main clamp hook 1 is provided with a limiting groove 10, and a limiting block 9 is slidably installed inside the limiting groove 10, and the side wall of the limiting block 9 is fixedly connected with a connecting plate 8, and one end of the connecting plate 8 is fixedly connected to the auxiliary clamp hook 2; by rotating the screw rod 12, under the limiting guiding action of the limiting block 9 and the limiting groove 10, the screw rod 12 can drive the auxiliary clamp hook 2 to approach the main clamp hook 1 or move away from the main clamp hook 1, and the clamping limit can be achieved for different femoral widths, thereby increasing the practical performance and work efficiency of the device.
[0019] In this embodiment, preferably, a hand wheel 11 is fixedly mounted on one end of the screw rod 12; the hand wheel 11 makes it more convenient to rotate the screw rod 12, thereby increasing the working efficiency of the device.
[0020] In this embodiment, preferably, the side wall of the hand wheel 11 is provided with anti-skid patterns 13; the provision of the anti-skid patterns 13 can increase the friction between the hand and the hand wheel 11, prevent slipping, and increase the practical performance of the device. The inner side of the main clamping hook 1 and the auxiliary clamping hook 2 is provided with a plurality of anti-skid patterns 202, which play a role in increasing the contact strength with the bone and preventing loosening and slipping.
[0021] Working principle: First, the utility model separates the main clamp hook 1 and the auxiliary clamp hook 2 by moving the reset mechanism, and then places the main clamp hook 1 to the position of the femur where the fracture needs to be bound, and then moves the groove portion 201 of the auxiliary clamp hook 2 toward the tip portion 101 of the main clamp hook 1 by moving the reset mechanism, so as to restrict the bone to the inner side of the main clamp hook 1 and the auxiliary clamp hook 2 to achieve reset. At this time, the first through groove 4 and the second through groove 5 are connected, and then one end of the thicker steel wire is connected to the thinner steel wire, and the steel wire at the thicker end is first passed through the first threading hole 3 and the first threading groove, and then passed out from the first threading hole 3 at the other end, and passed through the connected The second threading hole 6 passes through the second threading groove and comes out from the second threading hole 6 at the other end, so that a loop can be formed. Since the size of the thicker steel wire is larger than the de-threading groove 7 and smaller than the first threading groove and the second threading groove, the thicker steel wire cannot escape from the de-threading groove 7 and can only pass through the threading groove and the threading hole, thereby guiding the thinner steel wire into the loop. Since the size of the thinner steel wire is the same as or smaller than the groove width of the de-threading groove 7, it can directly escape through the de-threading groove 7, and the binding, tightening and fixation of the femur can be achieved without removing the main clamp hook 1 and the auxiliary clamp hook 2, thereby increasing the practical performance and work efficiency of the device.
[0022] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.
Claims
1. A wire guide for femoral fracture reduction, comprising a main clamp hook (1) and an auxiliary clamp hook (2), characterized in that: The main clamp hook (1) is provided with a first threading hole (3), the first threading hole (3) is connected to a first through groove (4), the first through groove (4) extends from the first threading hole (3) to the tip (101) of the main clamp hook (1); the auxiliary clamp hook (2) is provided with a second threading hole (6), the second threading hole (6) is connected to a second through groove (5), the second through groove (5) extends from the second threading hole (6) to the groove (201) of the auxiliary clamp hook (2); when the tip (101) and the end of the groove (201) are in contact, the first through groove (4) is connected to the second through groove (5), the top of the main clamp hook (1) and the auxiliary clamp hook (2) are both provided with a de-threading groove (7), the de-threading groove (7) is mutually connected with the first through groove (4) and the second through groove (5), and a movable reset mechanism is provided between the main clamp hook (1) and the auxiliary clamp hook (2).
2. A femoral fracture reduction wire guide according to claim 1, characterized in that: The inner diameters of the first through-groove (4), the second through-groove (5), the first threading hole (3) and the second threading hole (6) are all set to 1.4 mm, and the width of the de-threading groove (7) is set to 0.8 mm.
3. A femoral fracture reduction wire guide according to claim 1, characterized in that: The movable reset mechanism comprises a screw rod (12), wherein the screw rod (12) passes through the side wall of the main clamp hook (1) and is threadedly connected to the main clamp hook (1), one end of the screw rod (12) is rotatably connected to one end of the auxiliary clamp hook (2), a limiting groove (10) is provided on the side wall of the main clamp hook (1), a limiting block (9) is slidably installed inside the limiting groove (10), the side wall of the limiting block (9) is fixedly connected to a connecting plate (8), and one end of the connecting plate (8) is fixedly connected to the auxiliary clamp hook (2).
4. A femoral fracture reduction wire guide according to claim 3, characterized in that: A hand wheel (11) is fixedly mounted on one end of the screw rod (12).
5. A femoral fracture reduction wire guide according to claim 4, characterized in that: The side wall of the hand wheel (11) is provided with anti-slip grooves (13).
6. A femoral fracture reduction wire guide according to claim 1, characterized in that: A plurality of anti-slip stripes (202) are provided on the inner sides of the main clamping hook (1) and the auxiliary clamping hook (2).