Surgical fixation aid

Abstract

The present invention provides a surgical fixation aid, which comprises: a body having a side wall, a top plate protruding from the top of the side wall, a through hole being arranged on the top plate, and a bottom end of the side wall protruding a claw portion. An adjusting member, which includes an adjusting rod and a holding head; one end of the adjusting rod is connected to the holding head, and the end of the holding head is formed with an arc portion, the adjusting rod is penetrated in the through hole and the position of the adjusting rod relative to the through hole can be adjusted to adjust the distance between the holding head and the claw portion. Through the claw portion of the body and the adjustment member, the bone can be firmly fixed by a three-point combination, and when the position adjustment is completed, the adjustment rod can fix the position to fix the position of the holding head, improve the success rate of surgery.

Description

[Technical Field]

[0001] This invention relates to a medical device, and in particular to a surgical fixation aid that can effectively fix both ends of a bone during surgery and is easy to operate. [Previous Technology]

[0002] In conventional rib or other small bone fractures requiring repositioning surgery, a clamp is used for assistance, as described in Taiwan Invention Publication No. 202419067A. This clamp comprises two extending shafts, two operating handles respectively connected to the extending shafts, a first curved arm extending forward from the front end of one of the extending shafts, a second curved arm extending forward from the front end of the other extending shaft, a first clamping member connected to the front end of the first curved arm, and a second clamping member connected to the front end of the second curved arm. The curvature design of the first curved arm allows it to pass under the scapula. Therefore, the first curved arm and the first clamping member can penetrate deep into the thoracic cavity through a minimally invasive channel established under the scapula to support the ribs. Combined with the second clamping member, it can clamp, straighten, and reposition dislocated ribs for repair.

[0003] However, this clamp structure has a large operating span of its extension shaft, requiring a large opening to insert the clamp during surgery, which requires a large space for the operation. Furthermore, during the operation, the two operating handles need to be continuously engaged, which makes it difficult to fix the clamp in place. In addition, the clamps are also prone to misalignment or poor fixation, which can lead to bone fixation failure or sequelae after fixation. [Summary of the Invention]

[0004] The purpose of this invention is to provide a surgical fixation aid that adjusts the distance between a single piece and the claws. This allows for a three-point clamping method to fix the bone position, and once positioned, no further force is required to maintain it, reducing the difficulty for the surgeon, increasing the success rate of the surgery, and reducing side effects.

[0005] The present invention provides a surgical fixation aid, comprising: a body having a side wall, a top plate protruding from the top of the side wall, a perforation being provided on the top plate, and a claw portion protruding from the bottom of the side wall; an adjustment member comprising an adjustment rod and a top holding head; one end of the adjustment rod being connected to the top holding head, the end of the top holding head forming an arc portion, the adjustment rod being inserted into the perforation and the position of the adjustment rod relative to the perforation being adjustable, thereby adjusting the distance between the top holding head and the claw portion.

[0006] The surgical fixation aid provided by the present invention can be held against the bottom of the bone through the claw, and the position of the holding head can be adjusted through the adjusting rod of the adjusting member. After the holding head holds the bone, the holding head and the claw can form a three-point fixation effect. After the position of the holding head is fixed, the position can be maintained without the need for additional external force to maintain it, which can reduce the difficulty of the operation, ensure the success rate of the operation and reduce side effects.

Implementation Method

[0007] Please refer to Figures 1 to 3, which are preferred embodiments of the surgical fixation aid provided by the present invention, which include;

[0008] A body 10 has a side wall 11, on which an insertion hole 111 is provided; a top plate 12 protrudes from the top of the side wall 11, and a through hole 121 is provided on the top plate 12, and an internal thread 122 is provided in the through hole 121; a claw portion 13 protrudes from the bottom of the side wall 11, and the claw portion 13 is composed of two supporting claws 131, and the two supporting claws 131 are provided with serrated surfaces 132 to increase the holding force; the curvature of the serrated surfaces 132 of the supporting claws 131 can be between 1 / 50 and 1 / 300, and can be adjusted according to the position of the rib, such as the curvature of the front and rear sections being 1 / 150 to 1 / 300, while the more curved middle section is between 1 / 50 and 1 / 150, which can be adjusted according to the surgical position.

[0009] An adjusting member 20 includes an adjusting rod 21 and a support head 22; the adjusting rod 21 has an external thread 211 on its outer side that can be screwed onto the internal thread 122; the top of the adjusting rod 21 has a tool groove 23, which in this embodiment is a quincunx-shaped groove, suitable for quincunx-shaped tools, or can be provided with other screwdriver bit shapes, which can adjust the position of the adjusting rod 21; one end of the adjusting rod 21 is connected to the support head 22, and the end of the support head 22 forms an arc portion 221. In this embodiment, the support head 22 is formed into a spherical shape; the adjusting rod 21 passes through the through hole 121, so that the external thread 211 is screwed onto the internal thread 122, which can adjust the position of the adjusting rod 21 relative to the through hole 121; at the same time, the position of the support head 22 can also move with the adjusting rod 21, thereby adjusting the distance between the support head 22 and the claw portion 13.

[0010] An extension rod 30 is provided with an insertion part 31 and a stop part 32 at its front end; the insertion part 31 can be inserted into the insertion hole 111 of the side wall 11, and the stop part 32 abuts against the side wall 11, so that the extension rod 30 can move the position of the body 10, increase the operating distance, and the extension rod 30 can also be removed when not in use.

[0011] Please refer to Figure 3. When joining bones (such as ribs, clavicles, or other smaller bones B), a fixing plate 40 is placed above the two bone sections B. The fixing plate 40 has several assembly holes 41. Then, the body 10 is placed at the upper and lower ends of the bone B, so that the top plate 12 is above the bone B and the fixing plate 40, and the claw 13 is below the bone B. The two supporting claws 131 can support the bottom of the bone B. Next, a tool is placed in the tool slot 23, and the tool slot 23 is rotated through the tool, so that the tool slot 23 drives the adjusting member 20. The arcuate part 221 of the top holding head 22 is accommodated in the assembly hole 41 of the fixing plate 40. Then, the position of the adjusting rod 21 is adjusted so that the top holding head 22 can... Adjust the distance between the claw part 13 and the fixation plate 40 so that the two bone sections B can fit against the fixation plate 40 and the two bone sections B can be joined. Then, use a fixing screw to insert it through the assembly hole 41 so that the fixation plate 40 can be fixed to the two bone sections B. During the joining process, because the external thread 211 of the adjusting rod 21 is screwed onto the internal thread 122 of the through hole 121, the position of the adjusting rod 21 will not move after the position is fixed. No further adjustment or force is required during the operation, and the fixed position can be maintained. In addition, when the position of the adjusting rod 21 of the adjusting member 20 is fixed, the distance between the claw part 13 and the top support head 22 can be calculated by the length of the adjusting rod 21 protruding from the top plate 12. Then, the length of the screw used to fix the bone section B and the fixation plate 40 can be determined. Furthermore, the extension rod 30 increases the operating distance, allowing the main body 10 to be inserted into deeper locations, or to be accessed from a more outer position without obstructing the view of the surrounding area. The extension rod 30 can be inserted or removed as needed, increasing its versatility.

[0012] The surgical fixation aid provided by the present invention can quickly achieve position adjustment by adjusting the adjustment member 20, which can reduce the operation time. Furthermore, the positional cooperation between the adjustment member 20 and the main body 10 can reduce the problem of misalignment and improve the success rate of fixation between bones.

[0013] In addition to thoracic surgery, it is also suitable for fractures in other locations, such as the clavicle. It can be used for various surgeries such as thoracoscopic minimally invasive surgery or open fracture fixation, making it widely applicable.

[0014] The surgical fixation aid of the present invention can be well fixed on the body 10 through the adjustment member 20, and the force can be kept constant, which facilitates the operation of the surgery. Compared with conventional clamps, which require long-term force fixation and are prone to fracture fixation misalignment due to uneven force application when holding clamps, thus easily leading to surgical failure, the surgical fixation aid of the present invention can make the bone less prone to misalignment during the operation by applying a fixed force and fixing the position, thereby improving the success rate of the operation. Furthermore, because the alignment is correct, the success rate of bone healing can be improved.

[0015] In summary, the present invention provides a surgical fixation aid capable of achieving efficient and accurate bone fixation. Its design allows for rapid position adjustment, reduces surgical time, minimizes misalignment, and improves the success rate of bone fixation. Furthermore, its versatility extends beyond thoracic surgery, making it suitable for a wide range of fracture fixation applications, including minimally invasive and open surgeries.

[0016] The above description is merely a feasible embodiment of the present invention and should not be construed as limiting the scope of the present invention; that is, all equivalent changes and modifications made in accordance with the claims of the present invention should still fall within the scope of the present invention. [Simplified Explanation of the Diagram]

[0017] Figure 1 is a perspective view of a preferred embodiment of the present invention. Figure 2 is a side sectional view of a preferred embodiment of the present invention. Figure 3 is a schematic diagram of the bone fixation action of a preferred embodiment of the present invention.

Claims

1. A surgical fixation aid, comprising: a body having a side wall, a top plate protruding from the top of the side wall, a perforation being provided on the top plate, and a claw portion protruding from the bottom of the side wall; an adjustment member comprising an adjustment rod and a top holding head; one end of the adjustment rod being connected to the top holding head, the end of the top holding head forming an arc portion, the adjustment rod being inserted into the perforation and adjustable in position relative to the perforation, thereby adjusting the distance between the top holding head and the claw portion.

2. The surgical fixation aid as described in claim 1, wherein: The hole has an internal thread, and the adjusting rod has an external thread; the adjusting rod can be screwed into the hole.

3. The surgical fixation aid as described in claim 1 or 2, wherein: The top of the adjusting rod is provided with a tool slot.

4. The surgical fixation aid as described in claim 1, wherein: It also includes an extension rod, the front end of which is provided with an insertion part and a stop part; the side wall of the main body is provided with an insertion hole, the insertion part can be inserted into the insertion hole, and the stop part abuts against the side wall.

5. The surgical fixation aid as described in claim 1, wherein: The claw section consists of two supporting claws.

6. The surgical fixation aid as described in claim 5, wherein: The two support claws are equipped with serrated surfaces.

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