Ankle fracture reduction forceps

Abstract

The utility model provides a pair of ankle fracture reduction forceps, and belongs to the technical research field of medical instruments. In order to solve the problem that an existing reduction fixing forceps device is inconvenient to use, the ankle fixing reduction forceps comprise a first positioner and a second fixer, the first positioner and the second fixer are respectively positioned at two end ports of the forceps body, and the centers of the first positioner and the second fixer are positioned on the same horizontal line; when a hole is drilled before a screw is placed, the positioning hole in the first positioner can be fixed at the center of a fibula, and as the centers of the first positioner and the second positioner are positioned on the same horizontal line, the positioning sheet on the second positioner is correspondingly positioned at the center of a tibia, so that the tibia can be accurately positioned. The positioning holes and the positioning pieces can be combined to enable the screw mounting holes to be located in the center of the fibula and the tibia, accurate positioning is achieved, meanwhile, the first positioner is of an arc-shaped structure and makes close contact with the fibula, and therefore the first positioner can be prevented from slipping in the drilling process.

Description

Technical Field

[0001] The utility model belongs to the research field of medical device technology, and particularly relates to a foot and ankle fracture reduction forceps. Background Art

[0002] Fractures are sometimes caused by trauma or illness, but are most commonly caused by car accidents or falls while walking. Ankle fractures are particularly common. If there is no movement or other signs of ankle fracture, a cast or brace can be used for fixation, typically requiring four to six weeks. If the ankle is fractured or dislocated, surgery can be performed. Reduction forceps are typically used to assist in reduction. After reduction and fixation of the fracture, the ligament between the tibia and fibula must be checked for damage. If there is ligament damage, the tibia and fibula must be fixed with rivets at the site of the ligament tear to restore the tibia and fibula. In other scenarios, if the tibia and fibula are dislocated, screws must be used to fix the tibia and fibula to restore the tibia and fibula.

[0003] Patent publication number CN204468235U discloses a distal tibiofibular joint reduction and fixation guide for foot and ankle surgery. The guide comprises a handle, a first forceps head, a second forceps head, a locking tab, and an unlocking button. The first forceps head is provided with a pointed tip, and the second forceps head is provided with a sleeve, with the pointed tip located on an extension of the sleeve's centerline. To use the guide, 1) identify two reduction clamping points on the fibula and tibia, positioning the pointed tip on the tibial clamping point and the sleeve on the fibula clamping point. 2) Apply appropriate external force to clamp the fibula and tibia to reduce the two bones. 3) Tighten the locking tab to maintain the reduced position. 4) Insert the cannula core (i.e., the sleeve) into the cannula and tighten it. A 2.5mm electrotorquer is used to create a bony tunnel through the sleeve. 5) Remove the sleeve and insert a screw into the cannula; the screw is precisely directed in the direction of the contralateral pointed tip.

[0004] The above technical solution achieves precise positioning by embedding a screw in the sleeve and pointing the screw in the direction of the contralateral tip. However, in actual operation, the doctor needs to fix the sleeve with one hand and establish the bone tunnel with the other hand. However, since the sleeve is set on the head of the forceps and the end of the sleeve does not fit the clamping point of the fibula, the sleeve is prone to shaking and displacement when the medical staff fixes the sleeve by hand. The wrong drilling direction will cause the entire reduction and fixation guide to be displaced, and the tibia and fibula need to be re-reset, which is very inconvenient to use. Summary of the Invention

[0005] The purpose of the utility model is to overcome the problem that the existing resetting and fixing clamp device is inconvenient to use.

[0006] In order to achieve the above-mentioned purpose, the technical idea adopted by the present invention is: a foot and ankle fixation and reduction clamp is provided, including a first locator and a second fixator; the first locator and the second fixator are respectively located at the two end ports of the clamp body, and the centers of the two are located on the same horizontal line; when drilling before inserting the screw, the locating hole on the first locator can be fixed at the center of the fibula. Since the centers of the first locator and the second fixator are located on the same horizontal line, the locating plate on the second fixator is correspondingly located at the center of the tibia. In this way, the locating hole and the locating plate can be combined to realize the screw mounting hole at the center of the fibula and tibia, and precise positioning can be achieved. At the same time, the first locator is an arc-shaped structure, which is in close contact with the fibula, thereby preventing the first locator from slipping during drilling.

[0007] Based on the above technical ideas, the technical solution adopted by this utility model is:

[0008] An ankle fracture reduction forceps, comprising a forceps body; and further comprising:

[0009] a first locator having a locating hole at its center for determining the drilling position on the fibula;

[0010] The second locator includes a locating plate with a locating slot at the center; the locating slot is used to determine the drilling hole position on the tibia;

[0011] The first locator and the second locator are respectively arranged at two ends of the clamp body, and the centers of the locating hole and the locating groove are located on the same horizontal line.

[0012] To further limit the above technical solution, preferably, the first positioner includes a positioning portion and a connecting portion;

[0013] One end of the connecting part is rotatably connected to the positioning part, and the other end is connected to the clamp body.

[0014] In a further limitation of the above technical solution, the second positioner further includes a curved plate;

[0015] One end of the arc plate is slidably connected to the positioning piece, and the arc plate is rotatably connected to the clamp body through a rotating base.

[0016] As a further limitation of the above technical solution, the positioning piece is slidably connected to the arc-shaped plate via a sliding sleeve.

[0017] As a further limitation of the above technical solution, both the first positioner and the second positioner are provided with positioning tips on the side close to the patient.

[0018] Beneficial effects of the utility model:

[0019] 1. The utility model provides a first locator and a second fixator at both ends of the ankle fixation and reduction clamp, and the centers of the two are located on the same horizontal line. When drilling before inserting the screw, the locating hole on the first locator can be fixed at the center of the fibula. Since the centers of the first locator and the second fixator are located on the same horizontal line, the locating piece on the second fixator is correspondingly located at the center of the tibia. In this way, the locating hole and the locating piece can be combined to locate the screw installation hole at the center of the fibula and tibia, achieving precise positioning. At the same time, the first locator is an arc-shaped structure, which is in close contact with the fibula, thereby preventing the first locator from slipping during drilling.

[0020] 2. The first positioner and the second positioner provided by the utility model are respectively connected to the clamp body in rotation. In this way, when in use, after the first positioner and the second positioner are clamped on the fibula and tibia respectively, the clamp body can be rotated to be placed in a nearly horizontal state, so as not to affect the doctor's drilling before inserting the screw.

[0021] 3. The positioning piece provided by the present invention is connected to the arc-shaped plate through a sliding sleeve, which can further adjust the position of the screw drilling on the tibia. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a schematic structural diagram of an ankle fracture reduction forceps proposed by the present invention;

[0024] Figure 2 for Figure 1 A schematic structural diagram of the device shown in another perspective;

[0025] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0026] Figure 4 for Figure 3 a cross-sectional view of the device shown;

[0027] Figure 5 for Figure 2 Enlarged view of point B in the middle;

[0028] Figure 6 for Figure 5 a cross-sectional view of the device shown;

[0029] Figure 7 for Figure 1 a front view of the device shown;

[0030] Figure 8 for Figure 7 Enlarged view of point C in the middle;

[0031] Figure 9 for Figure 1 A schematic structural diagram of the device shown in another perspective;

[0032] Figure 10 for Figure 9 Enlarged view of point D in the middle.

[0033] Among them, 1, first locator; 11, positioning portion; 12, connecting portion; 13, positioning hole;

[0034] 2. Second positioner; 21. Positioning piece; 22. Positioning groove; 23. Arc plate; 24. Sliding sleeve; 25. Rotating base; 26. Rotating connector;

[0035] 3. Clamp body; 31. First clamp end; 32. Second clamp end; 33. Through hole;

[0036] 4. Clamping structure; 5. Positioning tip. DETAILED DESCRIPTION

[0037] In the description of the present invention, it should be understood that the terms "lengthwise", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more. In addition, features limited to "first" and "second" may explicitly or implicitly include one or more of such features.

[0038] Terms such as "horizontal" and "vertical" do not imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0039] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0041] like Figures 1 to 10 As shown, an ankle fracture reduction forceps provided by the present invention comprises a first positioner 1, a second positioner 2 and a forceps body 3.

[0042] like Figure 1 As shown, the clamp body 3 includes a first clamp end 31 and a second clamp end 32. A clamping structure 4 is provided at the handheld end of the clamp body 3. The clamping structure 4 is used to adjust the opening size of the first clamp end 31 and the second clamp end 32 to tightly clamp and secure the tibia and fibula. It should be noted that the clamping structure 4 provided in this embodiment of the present invention is prior art and is not improved upon in this embodiment of the present invention.

[0043] The first positioner 1 is disposed on the first clamp end 31 ; the second positioner 2 is disposed on the second clamp end 32 , and the first positioner 1 and the second positioner 2 are disposed opposite to each other.

[0044] Specifically, such as Figure 5 and 6 As shown, the surface of the first positioner 1 is provided with a plurality of equally spaced positioning prongs 5, which are used to clamp and connect with the fibula. The side of the first positioner 1 provided with the positioning prongs 5 is a curved surface, so that the first positioner 1 can better fit the patient's fibula, and the contact between the positioning prongs 12 and the patient's fibula can effectively prevent the first positioner 1 from slipping.

[0045] like Figure 6 As shown, the first positioner 1 includes a positioning portion 11 and a connecting portion 12; the positioning portion 11 and the connecting portion 12 are rotatably connected, and the connecting portion 12 is fixedly disposed on the first clamp end 31. The positioning portion 11 and the connecting portion 12 are both provided with positioning holes 13, and the positioning holes 13 of the two are of the same size and their centers coincide.

[0046] A limiting ring is provided at the end of the positioning portion 11 , and the limiting ring is inserted into the annular groove of the connecting portion 12 , and the limiting ring can rotate in the annular groove.

[0047] like Figure 3 and 4 As shown, the second positioner 2 is positioned on the patient-facing side of the second clamp end 32. The second positioner 2 comprises a positioning plate 21, an arcuate plate 23, a sliding sleeve 24, a rotating base 25, and a rotating connector 26. The positioning plate 21 is provided with a limiting groove 22. The center of the limiting groove 22 coincides with the center of the positioning hole 11.

[0048] The rotating connecting member 26 is fixedly arranged on the second clamp end 32, and Figure 4 As shown, the rotating base 25 is similar to the positioning portion 11, and a limiting piece is provided below the rotating base 25. The limiting piece below the rotating base 25 is limitedly set in the limiting cavity of the rotating connection member 26 and can rotate in the limiting cavity.

[0049] It should be noted that the embodiment of the present invention does not limit the fixed connection method between the rotating connector 26 and the second clamp end 32. For example, the rotating connector 26 and the second clamp end 32 are connected by bolts or are integrally connected.

[0050] The arc-shaped plate 23 is fixedly arranged on the rotating base 25. Specifically, the inner side of the rotating connecting member 26 is also provided with a positioning tip 5 so as to be fixed to the patient's tibia to prevent the second positioner 2 from slipping.

[0051] The positioning piece 21 is a sheet-like deformable structure, specifically made of aluminum. Specifically, a positioning slot 22 is provided at the lower end of the positioning piece 21. The positioning slot 22 is a semicircular groove, and the center of the positioning slot coincides with the center of the positioning hole 13, so that subsequent screws can be passed through the fibula and tibia for fixation and reduction.

[0052] The sliding sleeve 24 is an annular structure fixedly connected to the upper end of the positioning plate 21. The sliding sleeve 24 is mounted on the curved plate 23, allowing the positioning plate 21 to slide on the curved plate 23 via the sliding sleeve 24. This allows the positioning plate 21 to be further adjusted so that the center of the positioning groove 22 on the positioning plate 21 is located at the center of the tibia. During use, the curved plate 23 is clamped onto the tibia, and the positioning plate 21 is then bent toward the tibia to align the positioning groove 22 with the tibia's centerline, allowing further fine-tuning. Specifically, the sliding sleeve 24 is made of medical silicone.

[0053] The sliding sleeve 24 is fixedly connected to the positioning piece 21 . It should be noted that the embodiment of the present invention does not limit the fixed connection method of the sliding sleeve 24 and the positioning piece 21 . For example, the sliding sleeve 24 and the positioning piece 21 are connected through a strap or a buckle.

[0054] The working principle of the ankle fracture reduction forceps is as follows: the medical staff opens the forceps body 3, then clamps the first locator 1 on the patient's fibula and the second locator 2 on the patient's tibia, and then fixes the forceps body 3 through the clamping structure 4 to prevent the first locator 1 and the second locator 2 from shifting;

[0055] The positioning tips located on the inner side of the first positioner 1 and the second positioner 2 are respectively positioned at the center of the patient's fibula and tibia. At this time, the positioning hole 13 is located on the center line of the fibula, and the center of the positioning groove 22 is located on the center line of the tibia. During specific use, the position of the positioning groove 22 can be further adjusted by the sliding sleeve 24 so that the positioning groove 22 is located at the center of the tibia, so that the doctor can drill and insert screws later.

[0056] In the above process, since the first positioner 1 is rotatably connected to the first clamp end 31 via the positioning portion 11, and the second positioner 2 is rotatably connected to the second clamp end 32 via the rotating base 25, during use, after the first positioner 1 and the second positioner 2 are respectively placed on both sides of the fibula and tibia, the clamp body 3 can be rotated. In this way, during the subsequent drilling and screw insertion process, the clamp body 3 is set in a horizontal direction, does not block the doctor's field of view, and ensures that the operation can proceed normally.

[0057] Application Cases:

[0058] Mr. Liu, 37 years old, accidentally fell while walking, injuring his right ankle and undergoing fracture surgery.

[0059] Step 1: Preoperative preparation;

[0060] Step 2: Incision on the patient's affected area;

[0061] Step 3: Clamp the first locator 1 to one side of the fibula, and align the locating hole 13 on the reinforced first locator with the center line of the fibula;

[0062] Step 4: Clamp the second locator 2 on one side of the tibia, further adjust the position of the positioning piece 21 through the sliding sleeve 24, and manually bend the positioning piece 21 so that the positioning piece 21 fits the tibia and the center of the positioning groove 22 is located on the center line of the tibia;

[0063] Step 5: Fix the clamp body 3 by the clamping structure 4;

[0064] Step 6: Rotate the clamp body 3 to a horizontal state;

[0065] Step 7: Pass the drill bit through the through hole 33 and the positioning hole 13, and then through the center of the positioning groove 22 to complete the drilling before inserting the screw;

[0066] Step 8: Screw insertion.

[0067] After the screw is inserted, the clamping structure 4 is opened so that the pliers body 3 can be taken out.

[0068] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. An ankle fracture reduction forceps, comprising a forceps body (3); characterized in that: Also includes: A first locator (1) having a locating hole (13) at its center for determining a drilling position on the fibula; The second locator (2) comprises a locating plate (21) having a locating groove (22) at the center; the locating groove (22) is used to determine the drilling hole position on the tibia; The first locator (1) and the second locator (2) are respectively arranged at two ends of the clamp body (3), and the centers of the locating hole (13) and the locating groove (22) are located on the same horizontal line.

2. The ankle fracture reduction forceps according to claim 1, characterized in that: The first positioner (1) comprises a positioning portion (11) and a connecting portion (12); One end of the connecting portion (12) is rotatably connected to the positioning portion (11), and the other end is connected to the clamp body (3).

3. The ankle fracture reduction forceps according to claim 2, characterized in that: The second positioner (2) further includes a curved plate (23); The arc plate (23) is slidably connected to the positioning piece (21), and the arc plate (23) is rotatably connected to the clamp body (3) via a rotating base (25).

4. The ankle fracture reduction forceps according to claim 3, characterized in that: The positioning piece (21) is slidably connected to the arc plate (23) via a sliding sleeve (24).

5. The ankle fracture reduction forceps according to claim 4, characterized in that: The first positioner (1) and the second positioner (2) are both provided with a positioning tip (5) on the side close to the patient.

Images