Reduction forceps

Abstract

The utility model belongs to the technical field of reduction forceps, and discloses reduction forceps which comprise a first clamping mechanism and a second clamping mechanism. The first clamping mechanism comprises a first clamp arm and a first abutting assembly, and the first abutting assembly is arranged at the end of the first clamp arm. The first clamping mechanism comprises a first clamp arm and a first abutting assembly, the second clamping mechanism comprises a second clamp arm and a second abutting assembly, the second abutting assembly is arranged at the end of the second clamp arm, the second clamp arm is rotatably connected to the first clamp arm, and the first abutting assembly and the second abutting assembly can be driven by rotation of the second clamp arm and the first clamp arm to get close to each other or get away from each other. The second abutting assembly comprises an arc-shaped plate, the protruding side of the arc-shaped plate is connected to the second forceps arm, and the concave side of the arc-shaped plate can abut against the skin on the opposite side of the fracture position. The pair of reduction forceps can avoid secondary injury to a patient when passing through a small muscle incision, and is high in flexibility and convenient for reduction operation.

Description

Technical Field

[0001] The utility model relates to the technical field of resetters, in particular to a reset clamp. Background Art

[0002] Reduction forceps are a surgical instrument used for fracture reduction. They are usually made of high-strength stainless steel and have a special design and structure that can provide stable force and accurate operation to achieve temporary fixation of the fracture site for the subsequent placement of fixators such as screws or Kirschner wires.

[0003] The clamping part of the reduction forceps in the prior art generally has a tip, and the tip of the reduction forceps needs to be against the bone wall as a fulcrum. However, as fracture surgery is currently developing towards minimally invasive surgery, the tip of the reduction forceps needs to be repeatedly inserted through a tiny muscle incision before it can be against the bone wall. And since the muscle incision cannot be directly observed in minimally invasive surgery, it often takes multiple attempts to get it into position.

[0004] During the above process, the tip of the reduction forceps will cause secondary damage to the muscle incision, increasing the risk of infection or damage to nerves and blood vessels. In addition, the traditional reduction forceps are not flexible enough when adjusting the abutment and clamping direction, which is not conducive to the operation.

[0005] Therefore, a resetting forceps is urgently needed to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a reduction forceps which can avoid secondary injury to patients when passing through a tiny muscle incision, and has high flexibility and is convenient for reduction operation.

[0007] To achieve this purpose, the utility model adopts the following technical solutions:

[0008] Reduction forceps, comprising:

[0009] A first clamping mechanism, the first clamping mechanism comprising a first clamp arm and a first abutting assembly, the first abutting assembly being disposed at an end of the first clamp arm;

[0010] A second clamping mechanism, the second clamping mechanism comprises a second clamp arm and a second abutting assembly, the second abutting assembly is arranged at an end of the second clamp arm, the second clamp arm is rotatably connected to the first clamp arm, and the first abutting assembly and the second abutting assembly can move closer to or farther from each other under the rotation of the second clamp arm and the first clamp arm;

[0011] The second abutting assembly comprises an arc-shaped plate, a convex side of the arc-shaped plate is connected to the second forceps arm, and a concave side of the arc-shaped plate can abut against the skin on the opposite side of the fracture.

[0012] As a preferred solution of the reset pliers provided by the utility model, the second abutment assembly also includes a mounting block, which is connected to the convex side of the arc-shaped plate and has a clamping groove. A clamping block is provided at the end of the second pliers arm, and the clamping block can move along the length direction of the clamping groove, and the clamping block can also be positioned in the clamping groove.

[0013] As a preferred solution of the reset pliers provided by the utility model, the clamping block is movably arranged at the end of the second clamp arm, and the second clamp arm can swing relative to the clamping block around an axis perpendicular to the length direction of the clamping slot.

[0014] As a preferred solution of the reset clamp provided by the utility model, the reset clamp further includes a positioning mechanism, the positioning mechanism includes a first arc-shaped clamp plate and a second arc-shaped clamp plate, the first arc-shaped clamp plate is connected to the first clamp arm, and the second arc-shaped clamp plate is connected to the second clamp arm;

[0015] The first arc-shaped clamp plate can be positioned and connected to the second arc-shaped clamp plate to lock the first clamp arm and the second clamp arm and fix the distance between the first abutment component and the second abutment component; the first arc-shaped clamp plate can be separated from the second arc-shaped clamp plate to unlock the first clamp arm and the second clamp arm.

[0016] As a preferred solution of the reset pliers provided by the utility model, the first arc-shaped clamp is provided with a first rack, the second arc-shaped clamp is provided with a second rack, and the first rack can be clamped to the second rack.

[0017] As a preferred solution of the reset clamp provided by the utility model, the first arc-shaped clamp is provided with a clamping block, and the second arc-shaped clamp is provided with a second rack, and the clamping block can be clamped in any clamping tooth of the second rack in the extension direction of the second arc-shaped clamp.

[0018] As a preferred embodiment of the reduction clamp provided by the utility model, the first clamp arm and the second clamp arm are both arc-shaped structures, the first clamp arm includes a first clamp arm body and a first clamping section connected to each other, the second clamp arm includes a second clamp arm body and a second clamping section connected to each other, the first clamp arm body and the second clamp arm body are rotatably connected, the first clamping section and the second clamping section are arranged opposite to each other, the first abutment component is arranged on the first clamping section, and the second abutment component is arranged on the second clamping section.

[0019] As a preferred solution of the reduction forceps provided by the utility model, the first abutment assembly includes a cone portion, the cone portion is connected to the clamping end of the first forceps arm, and along the direction away from the clamping end of the first forceps arm, the side wall of the cone portion gradually approaches the central axis of the cone portion, and the tip of the cone portion can penetrate the bone wall. Through the above arrangement, the tip of the cone portion penetrates the bone wall to achieve the effect of stabilizing the bone block.

[0020] As a preferred solution of the reduction forceps provided by the utility model, the first abutment assembly further comprises a spherical portion, the cone portion is connected to the first forceps arm via the spherical portion, and the diameter of the spherical portion is greater than the bottom diameter of the cone portion. Through the above arrangement, the spherical portion can be stopped outside the bone wall to prevent the tip of the cone portion from penetrating too deep.

[0021] As a preferred solution of the reset pliers provided by the utility model, the reset pliers further include a connecting rivet, the first pliers arm and the second pliers arm are rotatably connected via the connecting rivet, and the first pliers arm and the second pliers arm can rotate around the connecting rivet as an axis.

[0022] Beneficial effects of the utility model:

[0023] The reduction clamp provided by the utility model comprises a first clamping mechanism and a second clamping mechanism. The first clamping mechanism comprises a first clamp arm and a first abutting assembly, and the first abutting assembly is arranged at the end of the first clamp arm; the second clamping mechanism comprises a second clamp arm and a second abutting assembly, and the second abutting assembly is arranged at the end of the second clamp arm, and the second clamp arm is rotatably connected to the first clamp arm, and the first abutting assembly and the second abutting assembly can approach or move away from each other under the rotation of the second clamp arm and the first clamp arm. In other words, the first clamp arm and the second clamp arm rotate, and the reduction clamp can be switched between the clamping state and the release state. The second abutting assembly comprises an arc plate, the convex side of the arc plate is connected to the second clamp arm, and the concave side of the arc plate can abut against the outer side of the skin on the opposite side of the fracture. In other words, the arc plate can avoid secondary damage to the patient when the reduction clamp pierces the skin and muscles, and the reduction clamp has high flexibility and is convenient for reduction operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the resetting clamp provided by an embodiment of the utility model;

[0025] Figure 2 is a schematic diagram of the convex side of the second abutment assembly provided by an embodiment of the utility model;

[0026] Figure 3 is a side view of a second abutment assembly provided by an embodiment of the utility model;

[0027] Figure 4 It is a schematic diagram of the first abutment assembly provided in an embodiment of the utility model.

[0028] In the figure:

[0029] 100, first clamping mechanism; 110, first clamp arm; 111, first clamp arm body; 112, first clamping section; 120, first abutting assembly; 121, cone portion; 122, spherical portion; 130, first hand-held portion; 131, first finger hole;

[0030] 200, second clamping mechanism; 210, second clamp arm; 211, second clamp arm body; 212, second clamping section; 213, clamping block; 220, second abutting assembly; 221, arc plate; 222, mounting block; 223, clamping slot; 230, second hand-held portion; 231, second finger hole;

[0031] 300, positioning mechanism; 310, first arc-shaped clamping plate; 311, first rack; 320, second arc-shaped clamping plate;

[0032] 400. Connecting rivets. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0034] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] In the description of this embodiment, the terms "upper", "lower", "right", "left" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0037] Figure 1 The schematic diagram of the structure of the reset clamp provided by the embodiment of the utility model is shown. Figure 1 This embodiment provides a reset clamp. The reset clamp includes a first clamping mechanism 100, a second clamping mechanism 200 and a connecting rivet 400. The first clamping mechanism 100 and the second clamping mechanism 200 are rotatably connected through the connecting rivet 400.

[0038] Specifically, the first clamping mechanism 100 includes a first clamp arm 110 and a first abutting assembly 120, which is arranged at the end of the first clamp arm 110 and is configured to abut against the bone wall. The second clamping mechanism 200 includes a second clamp arm 210 and a second abutting assembly 220, which is arranged at the end of the second clamp arm 210 and is configured to abut against the outer side of the skin on the opposite side of the fracture. The second clamp arm 210 is connected to the first clamp arm 110 through a connecting rivet 400, and the first clamp arm 110 and the second clamp arm 210 can rotate around the connecting rivet 400. The first abutting assembly 120 and the second abutting assembly 220 can approach or move away from each other under the relative rotation of the second clamp arm 210 and the first clamp arm 110.

[0039] More specifically, the first clamping mechanism 100 further includes a first hand-held portion 130. The first hand-held portion 130 is disposed at one end of the first clamp arm 110 away from the first abutting component 120, and is provided with a first finger hole 131. Similarly, the second clamping mechanism 200 further includes a second hand-held portion 230, which is disposed at one end of the second clamp arm 210 away from the second abutting component 220, and is provided with a second finger hole 231. The operator inserts the thumb and index finger into the first finger hole 131 and the second finger hole 231 respectively, and can operate the first clamping mechanism 100 and the second clamping mechanism 200 to adjust the distance between the first abutting component 120 and the second abutting component 220.

[0040] More specifically, the first clamp arm 110 and the second clamp arm 210 are both in an arc-shaped structure. The first clamp arm 110 includes a first clamp arm body 111 and a first clamping section 112 that are connected to each other and have rounded transitions, and the second clamp arm 210 includes a second clamp arm body 211 and a second clamping section 212 that are connected to each other and have rounded transitions. The connecting rivet 400 is arranged at the transition position between the first clamp arm body 111 and the first clamping section 112 and at the transition position between the second clamp arm body 211 and the second clamping section 212 to achieve the rotational connection between the first clamp arm body 111 and the second clamp arm body 211. The first clamping section 112 and the second clamping section 212 are arranged opposite to each other, the first abutting assembly 120 is arranged at the first clamping section 112, and the second abutting assembly 220 is arranged at the second clamping section 212. Through the above arrangement, the first clamp arm 110 and the second clamp arm 210 can better match the shape of human bones, further improving the stability and reliability of the clamping and reduction process.

[0041] Continue to refer to Figure 1 The reduction forceps further comprises a positioning mechanism 300, which comprises a first arc-shaped clamp plate 310 and a second arc-shaped clamp plate 320. The first arc-shaped clamp plate 310 is connected to the first clamp arm 110, is located on a side of the first hand-held portion 130 close to the first abutting assembly 120, and extends toward the second clamp arm 210. Similarly, the second arc-shaped clamp plate 320 is connected to the second clamp arm 210, is located on a side of the second hand-held portion 230 close to the second abutting assembly 220, and extends toward the first clamp arm 110.

[0042] The first arc-shaped clamp plate 310 can be positioned and connected to the second arc-shaped clamp plate 320 to lock the first clamp arm 110 and the second clamp arm 210, thereby fixing the distance between the first abutting component 120 and the second abutting component 220, thereby ensuring the stable clamping of the first abutting component 120 and the second abutting component 220. The first arc-shaped clamp plate 310 can be separated from the second arc-shaped clamp plate 320 to unlock the first clamp arm 110 and the second clamp arm 210, so that the first abutting component 120 is separated from the bone wall after the reduction is completed, and the second abutting component 220 is separated from the skin on the opposite side of the fracture.

[0043] Specifically, in this embodiment, the first arc-shaped clamping plate 310 is provided with a first rack 311, and the second arc-shaped clamping plate 320 is provided with a second rack (not shown in the figure). The multiple teeth in the first rack 311 can be engaged with the multiple teeth of the second rack, so that the first arc-shaped clamping plate 310 and the second arc-shaped clamping plate 320 are fixed to each other to ensure the stability of the reset clamping.

[0044] Optionally, in other embodiments, the first arc-shaped clamping plate 310 is provided with a clamping block (not shown), and the second arc-shaped clamping plate 320 is provided with a second rack, and the clamping block can be clamped in any clamping tooth of the second rack in the extension direction of the second arc-shaped clamping plate 320, so as to fix the first arc-shaped clamping plate 310 and the second arc-shaped clamping plate 320 to each other, thereby ensuring the stability of the reset clamping.

[0045] Figure 2 A schematic diagram showing a convex side of a second abutment assembly provided by an embodiment of the utility model; Figure 3 FIG. 2 shows a side view of the second abutment assembly provided by an embodiment of the present utility model. Figure 1-Figure 3 The second abutting component 220 includes an arc-shaped plate 221. The convex side of the arc-shaped plate 221 is connected to the second clamp arm 210, and the concave side of the arc-shaped plate 221 can abut against the skin outside on the opposite side of the fracture to provide a stable support and positioning function.

[0046] Specifically, the second abutment assembly 220 also includes a mounting block 222, which is connected to the raised side of the arc plate 221 and has a snap-in slot 223. A snap-in block 213 is provided at the end of the second clamp arm 210. The snap-in block 213 can move along the length direction of the snap-in slot 223, and the snap-in block 213 can also be positioned in the snap-in slot 223.

[0047] More specifically, the bottom wall of the clamping slot 223 is provided with a plurality of latch teeth, and the plurality of latch teeth are evenly spaced along the length direction of the clamping slot 223. When the reduction forceps is in the clamping state, the clamping block 213 can be clamped between any two adjacent latch teeth to position the second clamp arm 210 and the arc plate 221. When the reduction forceps is in the released state, the clamping block 213 can slide freely along the length direction in the clamping slot 223 to adjust the clamping position. In other words, by adjusting the relative position of the clamping block 213 in the clamping slot 223, the relative position of the arc plate 221 and the second clamping section 212 can be fine-tuned, so that the reduction forceps can better match the human body structure at the bone to be reduced, facilitate operation, and improve the clamping reduction effect.

[0048] More specifically, the clamping block 213 is movably arranged at the end of the second clamp arm 210, and the second clamp arm 210 can swing relative to the clamping block 213 around an axis perpendicular to the length direction of the clamping slot 223. In this embodiment, the clamping block 213 is connected to the end of the second clamp arm 210 through two connecting pieces (not shown) and a rotating shaft (not shown). The two connecting pieces are arranged parallel to each other and are fixedly arranged at the ends of the second clamp arm 210 respectively. The rotating shaft is arranged perpendicular to the length direction of the clamping slot 223, and the two ends of the rotating shaft are respectively connected to the two connecting pieces and can relatively rotate through the clamping block 213. Through the above arrangement, the operational flexibility of the second clamp arm 210 and the arc plate 221 can be further improved, and the reset operation is convenient.

[0049] Figure 4 A schematic diagram showing a first abutment assembly provided by an embodiment of the utility model is shown, referring to Figure 4 The first abutment assembly 120 includes a cone portion 121. The cone portion 121 is connected to the clamping end of the first clamp arm 110. Along the direction away from the clamping end of the first clamp arm 110, the side wall of the cone portion 121 gradually approaches the central axis of the cone portion 121, and the tip of the cone portion 121 can penetrate the bone wall. Through the above arrangement, the tip of the cone portion 121 penetrates the bone wall to achieve the effect of stabilizing the bone block.

[0050] Preferably, the first abutting assembly 120 further includes a spherical portion 122. The cone portion 121 is connected to the first clamp arm 110 via the spherical portion 122, and the diameter of the spherical portion 122 is greater than the bottom diameter of the cone portion 121. The spherical portion 122 can be stopped outside the bone wall to prevent the tip of the cone portion 121 from penetrating too deep.

[0051] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A reduction forceps, characterized in that: include: A first clamping mechanism (100), the first clamping mechanism (100) comprising a first clamp arm (110) and a first abutting assembly (120), the first abutting assembly (120) being arranged at an end of the first clamp arm (110); A second clamping mechanism (200), the second clamping mechanism (200) comprising a second clamp arm (210) and a second abutting assembly (220), the second abutting assembly (220) being arranged at an end of the second clamp arm (210), the second clamp arm (210) being rotatably connected to the first clamp arm (110), the first abutting assembly (120) and the second abutting assembly (220) being able to move closer to or farther from each other under the rotation of the second clamp arm (210) and the first clamp arm (110); The second abutting component (220) comprises an arc-shaped plate (221), the convex side of the arc-shaped plate (221) is connected to the second clamp arm (210), and the concave side of the arc-shaped plate (221) can abut against the skin on the opposite side of the fracture.

2. The reduction forceps according to claim 1, characterized in that: The second abutment assembly (220) further comprises a mounting block (222), the mounting block (222) being connected to the protruding side of the arc-shaped plate (221) and having a clamping slot (223), and a clamping block (213) being provided at the end of the second clamp arm (210), the clamping block (213) being movable along the length direction of the clamping slot (223), and the clamping block (213) being also capable of being positioned in the clamping slot (223).

3. The reduction forceps according to claim 2, characterized in that: The clamping block (213) is movably arranged at the end of the second clamp arm (210), and the second clamp arm (210) can swing relative to the clamping block (213) around an axis perpendicular to the length direction of the clamping slot (223).

4. The reduction forceps according to claim 1, characterized in that: The resetting forceps further comprises a positioning mechanism (300), wherein the positioning mechanism (300) comprises a first arc-shaped clamping plate (310) and a second arc-shaped clamping plate (320), wherein the first arc-shaped clamping plate (310) is connected to the first clamp arm (110), and the second arc-shaped clamping plate (320) is connected to the second clamp arm (210); The first arc-shaped clamping plate (310) can be positioned and connected to the second arc-shaped clamping plate (320) to lock the first clamp arm (110) and the second clamp arm (210) and fix the distance between the first abutment component (120) and the second abutment component (220); the first arc-shaped clamping plate (310) can be separated from the second arc-shaped clamping plate (320) to unlock the first clamp arm (110) and the second clamp arm (210).

5. The reduction forceps according to claim 4, characterized in that: The first arc-shaped clamping plate (310) is provided with a first rack (311), and the second arc-shaped clamping plate (320) is provided with a second rack, and the first rack (311) can be clamped to the second rack.

6. The reduction forceps according to claim 4, characterized in that: The first arc-shaped clamping plate (310) is provided with a clamping block, and the second arc-shaped clamping plate (320) is provided with a second rack, and the clamping block can be clamped in any clamping tooth of the second rack in the extension direction of the second arc-shaped clamping plate (320).

7. The reduction forceps according to claim 1, characterized in that: The first clamp arm (110) and the second clamp arm (210) are both arc-shaped structures. The first clamp arm (110) includes a first clamp arm body (111) and a first clamping section (112) connected to each other. The second clamp arm (210) includes a second clamp arm body (211) and a second clamping section (212) connected to each other. The first clamp arm body (111) and the second clamp arm body (211) are rotatably connected. The first clamping section (112) and the second clamping section (212) are arranged opposite to each other. The first abutting component (120) is arranged on the first clamping section (112), and the second abutting component (220) is arranged on the second clamping section (212).

8. The reduction forceps according to claim 1, characterized in that: The first abutment assembly (120) comprises a cone portion (121), which is connected to the clamping end of the first clamp arm (110). Along the direction away from the clamping end of the first clamp arm (110), the side wall of the cone portion (121) gradually approaches the central axis of the cone portion (121), and the tip of the cone portion (121) can penetrate into the bone wall.

9. The reduction forceps according to claim 8, characterized in that: The first abutment assembly (120) further comprises a spherical portion (122), the conical portion (121) is connected to the first clamp arm (110) via the spherical portion (122), and the diameter of the spherical portion (122) is greater than the bottom diameter of the conical portion (121).

10. The reduction forceps according to claim 1, characterized in that: The resetting pliers also include a connecting rivet (400), the first pliers arm (110) and the second pliers arm (210) are rotatably connected via the connecting rivet (400), and the first pliers arm (110) and the second pliers arm (210) can rotate around the connecting rivet (400).

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