A calcaneal sustentaculum tail guide

Abstract

The utility model relates to medical auxiliary instrument technical field, concretely relates to a calcaneus sustentaculum tali guider, its characterized in that: including first guide needle, positioning module, second guide needle and guide module, first guide needle is positioned to the sustentaculum tali bone block through calcaneus cross angle gap and is inserted, positioning module is equipped with positioning channel in, positioning module is set on first guide needle through positioning channel, guide module is connected with positioning module through connecting rod, guide module is equipped with at least one with the same plane of positioning channel in guide channel, the included angle alpha is formed between guide channel and positioning channel, second guide needle is inserted from guide channel and can produce intersection convergence point with first guide needle. The utility model can accurately guide second guide needle to hit the sustentaculum tali bone block from the calcaneus lateral surface in the calcaneus operation, to reduce the fluoroscopy number in operation, and improve the operation efficiency, precision and safety.

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary device technology, specifically to a calcaneal spur guide. Background Technology

[0002] In calcaneal fracture surgery, especially those involving the sustenoid process, the sustenoid process, as an important component and unique anatomical structure of the calcaneus, plays a crucial role in weight-bearing and stress distribution. To achieve stronger fixation and better therapeutic effects, surgeons typically insert Kirschner wires or screws from the lateral aspect of the calcaneus to fix the sustenoid process and increase fracture stability. However, currently, this process relies heavily on the surgeon's personal experience and feel, and presents the following problems: 1. Insufficient precision: Due to the complex anatomy of the calcaneus, it is difficult to accurately locate the sustenoid process during surgery, easily leading to Kirschner wires or screws deviating from their target position; 2. Frequent fluoroscopy: Multiple C-arm fluoroscopy sessions are required during surgery to confirm the position of the Kirschner wires or screws, increasing surgical time and radiation exposure; 3. High surgical risk: Repeated adjustments to the position of the Kirschner wires or screws may damage surrounding soft tissues or neurovascular structures. Therefore, there is an urgent need for a calcaneal sustenoid process guide that can precisely guide the insertion of Kirschner wires or screws from the lateral aspect of the calcaneus into the sustenoid process during calcaneal surgery, reducing the number of intraoperative fluoroscopy sessions and improving surgical efficiency, precision, and safety. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a calcaneal susceptibility guide that can accurately guide the second guide pin from the lateral side of the calcaneus into the susceptibility bone block during calcaneal surgery, thereby reducing the number of intraoperative fluoroscopy sessions and improving surgical efficiency, accuracy and safety.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a calcaneal susceptibility guide, comprising a first guide pin, a positioning module, a second guide pin, and a guiding module. The first guide pin is inserted through the calcaneal cross angle gap to the susceptibility bone block for positioning. The positioning module is provided with a positioning channel. The positioning module is sleeved on the first guide pin through the positioning channel. The guiding module is connected to the positioning module through a connecting rod. The guiding module is provided with at least one guiding channel located on the same plane as the positioning channel. An angle α is formed between the guiding channel and the positioning channel. The second guide pin is inserted through the guiding channel and can intersect and converge with the first guide pin.

[0005] Furthermore, the first guide pin is adapted to the positioning channel, and the positioning module rotates in coordination with the first guide pin.

[0006] Furthermore, the second guide needle is adapted to the guide channel, which consists of multiple guide channels arranged in parallel at intervals.

[0007] Furthermore, one end of both the first and second guide needles is pointed.

[0008] Furthermore, it also includes a handle, one end of which is fixedly connected to the positioning module.

[0009] Furthermore, one end of the connecting rod is detachably connected to the positioning module, while the other end is fixedly connected to the guide module.

[0010] Furthermore, one end of the connecting rod is fixedly provided with a connecting nest, and the positioning module is provided with a connecting groove that is adapted to the connecting nest. The connecting nest can be detachably embedded in the connecting groove.

[0011] Furthermore, both the connecting nest and the connecting slot are ring-shaped, the connecting slot is coaxially set with the positioning channel, and the connecting nest is engaged with the positioning module.

[0012] Furthermore, there are multiple and replaceable guide modules, the included angle α between the guide channel on the multiple guide modules and the positioning channel on the positioning module is different, and the length of the connecting rod on the multiple guide modules is different.

[0013] Furthermore, the two ends of the connecting rod are fixedly connected to the positioning module and the guide module, respectively.

[0014] As described above, the calcaneal suspensory process guide provided by this utility model has the following beneficial effects: Through the coordinated use of the first guide pin, positioning module, second guide pin, and guiding module, its modular design facilitates rapid installation and adjustment during surgery, shortening surgical time and simplifying operation. In use, one end of the first guide pin can be inserted through the calcaneal cross angle gap to the suspensory process bone block for positioning. At this time, one end of the first guide pin is located at the suspensory process bone block. The positioning module can be fitted onto the first guide pin through the positioning channel. Since the guiding channel in the guiding module and the positioning channel in the positioning module are on the same plane, when the second guide pin is inserted through the guiding channel of the guiding module, it will inevitably intersect with the first guide pin at a convergence point. This allows the second guide pin to be accurately inserted into the suspensory process bone block during surgery, improving surgical precision and reducing the need for intraoperative fluoroscopy, thus reducing the number of fluoroscopy cycles, surgical time, and radiation exposure, thereby improving surgical efficiency. Simultaneously, it reduces the number of times the second guide pin needs to be repeatedly adjusted, reducing the risk of damage to surrounding tissues and thus lowering surgical risk. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a calcaneal spur guide according to Embodiment 1 of this utility model.

[0016] Figure 2 This is an exploded three-dimensional structural diagram of a calcaneal spur guide according to Embodiment 1 of this utility model.

[0017] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.

[0018] Figure 4 This is a schematic diagram showing the usage state of a calcaneal spur guide in Embodiment 1 of this utility model.

[0019] Figure 5 This is a partial three-dimensional structural diagram of a calcaneal spur guide according to Embodiment 2 of this utility model.

[0020] In the diagram: 1-First guide pin; 2-Positioning module; 21-Positioning channel; 22-Connecting slot; 23-Card block; 3-Second guide pin; 4-Guide module; 41-Guide channel; 5-Connecting rod; 51-Connecting nest; 52-Card slot; 6-Handle; 7-Electric drill. Detailed Implementation

[0021] The present invention will be further described below through specific embodiments.

[0022] Example 1 like Figures 1 to 4 As shown, the calcaneal suspensory process guide of this utility model includes a first guide pin 1, a positioning module 2, a second guide pin 3, and a guiding module 4. The first guide pin 1 is inserted through the calcaneal cross angle gap to the suspensory process bone block for positioning. The positioning module 2 is provided with a positioning channel 21. The positioning module 2 is sleeved on the first guide pin 1 through the positioning channel 21. The guiding module 4 is connected to the positioning module 2 through a connecting rod 5. The guiding module 4 is provided with at least one guiding channel 41 located in the same plane as the positioning channel 21. An angle α is formed between the guiding channel 41 and the positioning channel 21. The second guide pin 3 is inserted through the guiding channel 41 and can intersect and converge with the first guide pin 1.

[0023] The modular design of the first guide pin 1, the positioning module 2, the second guide pin 3, and the guiding module 4 facilitates rapid installation and adjustment during surgery, shortening the operation time and simplifying operation. In use, one end of the first guide pin 1 can be inserted through the calcaneal cross angle gap to the suspensory calcaneal segment for positioning. At this time, one end of the first guide pin 1 is located at the suspensory calcaneal segment. The positioning module 2 can be fitted onto the first guide pin 1 through the positioning channel 21. Furthermore, the guiding channel 41 within the guiding module 4 is connected to the positioning module... The positioning channels 21 within block 2 are on the same plane. Therefore, when the second guide needle 3 enters through the guide channel 41 of the guide module 4, it will inevitably intersect with the first guide needle 1. This allows the second guide needle 3 to be accurately inserted into the spur bone block during the operation, which helps improve surgical precision and reduces the need for intraoperative fluoroscopy, thereby reducing the number of fluoroscopy sessions, surgical time, and radiation exposure, thus improving surgical efficiency. At the same time, it reduces the number of times the second guide needle 3 needs to be adjusted, thereby reducing the risk of damage to surrounding tissues and thus reducing surgical risk.

[0024] Preferably, the first guide needle 1 can be a Kirschner wire, and the second guide needle 3 can be a Kirschner wire or a screw.

[0025] Correspondingly, the first guide pin 1 is adapted to the positioning channel 21, and the positioning module 2 is rotatably engaged with the first guide pin 1. Preferably, the first guide pin 1 is cylindrical, and the positioning channel 21 is circular, so that when the first guide pin 1 is inserted into the positioning channel 21, the rotatable engagement between the positioning module 2 and the first guide pin 1 can be achieved.

[0026] Correspondingly, the second guide needle 3 is adapted to the guide channel 41. There are multiple guide channels 41 arranged in parallel and spaced apart. Thus, when the needle passes through different guide channels 41, the distance between the intersection and convergence point generated by the first guide needle 1 will be different. Therefore, it can be better applied to people with different widths of the protruding bone segments. Preferably, the number of guide channels 41 is 2-4.

[0027] Preferably, one end of both the first guide needle 1 and the second guide needle 3 is pointed.

[0028] The calcaneal suspensory guide also includes a handle 6, one end of which is fixedly connected to the positioning module 2. During the operation, the surgeon can hold the handle 6 to facilitate operation. When the handle 6 is held still, it helps to keep the positioning module 2 in a stable position. When the handle 6 is held and rotated, it can easily drive the positioning module 2 to rotate together, thereby driving the guide module 4 to rotate together to adjust the guide position of the guide module 4.

[0029] In this embodiment, one end of the connecting rod 5 is detachably connected to the positioning module 2 and the other end is fixedly connected to the guide module 4. Correspondingly, one end of the connecting rod 5 is fixedly provided with a connecting nest 51, and the positioning module 2 is provided with a connecting groove 22 that is adapted to the connecting nest 51. The connecting nest 51 is detachably embedded in the connecting groove 22, thereby facilitating quick assembly and disassembly between the guide module 4 and the positioning module 2, and making it easy to replace the guide module 4.

[0030] Preferably, both the connecting nest 51 and the connecting groove 22 are annular in shape. The connecting groove 22 is coaxially arranged with the positioning channel 21. The connecting nest 51 is engaged with the positioning module 2. Correspondingly, the connecting nest 51 is provided with a slot 52. The positioning module 2 is fixedly provided with a locking block in the connecting groove 22. The locking block is adapted to the slot 52. When the connecting nest 51 is embedded in the connecting groove 22 of the positioning module 2, the locking block is engaged in the slot 52. Thus, when the handle 6 is held and the positioning module 2 is fixed, the guide module 4 can also be fixed and placed in a stable guiding position. When the positioning module 2 is rotated by the handle 6, the guide module 4 can rotate together with the positioning module 2 to adjust the guiding position of the guide module 4.

[0031] The guide module 4 is multiple and replaceable. The included angle α between the guide channel 41 on the multiple guide modules 4 and the positioning channel 21 on the positioning module 2 is different. The length of the connecting rod 5 on the multiple guide modules 4 is different. Preferably, the included angle α is 15-35 degrees and the length of the connecting rod 5 is 10-25 mm. As a result, when different guide modules 4 are used, their distance and angle with the positioning module 2 are different. Moreover, the guide module 4 can rotate around the first guide needle 1 along with the positioning module 2. Therefore, by replacing different guide modules 4, different points can be flexibly selected on the outer surface of the calcaneus to insert the second guide needle 3 to better ensure the insertion of the calcaneal segment.

[0032] The method of using the calcaneal suspensory tract guide described in this utility model is as follows: In use, the first guide needle 1 is first inserted through the calcaneal cross angle gap to the suspensory calcaneal bone block for positioning. Then, the positioning module 2 is fitted onto the first guide needle 1 through its positioning channel 21, and the positioning module 2 is placed against the surface skin of the affected area of ​​the patient's foot. Then, a suitable guide module 4 is selected, and the guide module 4 is embedded in the connecting groove 22 of the positioning module 2 through the connecting nest 51 and locked together. At this time, the doctor can hold the handle 6 with one hand and hold the electric drill 7 with the other hand. The electric drill 7 is equipped with a second guide needle 3, which can be inserted through the corresponding guide channel 41 on the guide module 4. Thus, the guide channel 41 can guide the second guide needle 3 to be driven into the suspensory calcaneal bone block from the outer side of the calcaneus.

[0033] Example 2 like Figure 5 As shown, the difference between this embodiment and Embodiment 1 is that the two ends of the connecting rod 5 are fixedly connected to the positioning module 2 and the guide module 4, respectively.

[0034] Other technical features are the same as in Embodiment 1.

[0035] The above are only some specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A calcaneal susceptibility guide, characterized in that: The device includes a first guide pin, a positioning module, a second guide pin, and a guiding module. The first guide pin is inserted through the calcaneal cross angle gap to the suspensory fossa for positioning. The positioning module has a positioning channel and is fitted onto the first guide pin through the positioning channel. The guiding module is connected to the positioning module through a connecting rod. The guiding module has at least one guiding channel located on the same plane as the positioning channel, and an angle α is formed between the guiding channel and the positioning channel. The second guide pin is inserted through the guiding channel and can intersect with the first guide pin at a convergence point.

2. The calcaneal suspensory tract guide according to claim 1, characterized in that: The first guide pin is adapted to the positioning channel, and the positioning module rotates in conjunction with the first guide pin.

3. The calcaneal suspensory tract guide according to claim 1, characterized in that: The second guide needle is adapted to the guide channel, and there are multiple guide channels arranged in parallel and spaced apart.

4. The calcaneal suspensory tract guide according to claim 1, characterized in that: Both the first guide needle and the second guide needle have a pointed end.

5. A calcaneal suspensory guide according to claim 1, characterized in that: It also includes a handle, one end of which is fixedly connected to the positioning module.

6. The calcaneal susceptibility guide according to claim 1, characterized in that: One end of the connecting rod is detachably connected to the positioning module, and the other end is fixedly connected to the guide module.

7. A calcaneal susceptibility guide according to claim 6, characterized in that: One end of the connecting rod is fixedly provided with a connecting nest, and the positioning module is provided with a connecting groove adapted to the connecting nest. The connecting nest can be detachably embedded in the connecting groove.

8. A calcaneal susceptibility guide according to claim 7, characterized in that: Both the connecting nest and the connecting slot are ring-shaped. The connecting slot is coaxially arranged with the positioning channel, and the connecting nest is engaged with the positioning module.

9. A calcaneal susceptibility guide according to claim 6, characterized in that: The guide modules are multiple and replaceable. The included angle α between the guide channel on the multiple guide modules and the positioning channel on the positioning module is different, and the length of the connecting rod on the multiple guide modules is different.

10. A calcaneal susceptibility guide according to claim 1, characterized in that: The two ends of the connecting rod are fixedly connected to the positioning module and the guiding module, respectively.

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