Special forceps for kirschner wire

Abstract

The utility model provides a pair of special pliers for kirschner wires, which comprises a first handle and a second handle, the first handle comprises a first handheld part and a mounting part, and the second handle comprises a second handheld part; the bending assembly comprises a fluted disc, the fluted disc is arranged on the upper end face of the mounting portion through a central rotating shaft, a first plug pin used for mounting a guide shaft sleeve is arranged at the end of the central rotating shaft, a bending shaft sleeve fixed through a second plug pin is arranged on the fluted disc, and a shifting rod and a positioning pin are arranged on the second handheld portion. The bending assembly further comprises a plurality of supporting columns arranged on the installation part. And the cutting assembly comprises a first cutter block arranged on the first handheld part and a second cutter block arranged on the fluted disc. The kirschner wire clamp is suitable for kirschner wires of various specifications, simple to operate, time-saving and labor-saving.

Description

Technical Field

[0001] The utility model relates to a medical device, in particular to a pair of special forceps for Kirschner wires. Background Art

[0002] In orthopedic surgery, Kirschner wires are often used as steel needles for fixing broken bones. Generally, Kirschner wires are about twenty centimeters long and have a diameter between 0.5 and 3 millimeters. They are available in several different specifications. They are used to fix fractures with little stress, such as short fractures or avulsion fractures, and are also often used to fix temporary fracture fragments in orthopedic surgery. During the operation, the Kirschner wires can be cut according to the size of the bone to be connected, and then the Kirschner wires are inserted into the hollowed bones for fixation, and the steel needles exposed outside the bones are bent to prevent the needle tails left on the bone surface from piercing the skin or sinking into the bone surface and unable to be removed later. At present, needle holders or pliers are often used to complete the bending work, which is often time-consuming and labor-intensive. The utility model proposes a special Kirschner wire pliers that can cut and bend continuously and simultaneously. Utility Model Content

[0003] The utility model provides a special forceps for Kirschner wires, which can effectively solve the above problems.

[0004] The utility model is achieved in this way:

[0005] A special forceps for Kirschner wires, comprising a first handle and a second handle, comprising:

[0006] The first handle includes a first hand-holding portion and a mounting portion, and the second handle includes a second hand-holding portion;

[0007] A bending assembly, wherein the bending assembly comprises a toothed disc, the toothed disc is arranged on the upper end surface of the mounting portion through a central rotating shaft, a first latch for mounting a guide sleeve is arranged at the end of the central rotating shaft, a bending sleeve fixed by a second latch is arranged on the toothed disc, a lever and a positioning pin are arranged on the second hand-held portion, and the bending assembly further comprises a plurality of pillars arranged on the mounting portion;

[0008] The cutting assembly comprises a first cutting block arranged on the first hand-held part and a second cutting block arranged on the toothed disc.

[0009] As a further improvement, a first sliding groove is provided on the toothed disc, and the second blade block is provided on the first sliding groove.

[0010] As a further improvement, a second sliding groove is provided in the first blade block, and two bolts pass through the second sliding groove to fix the first blade block to the first hand-held part.

[0011] As a further improvement, a groove is provided on the side surface of the guide sleeve.

[0012] As a further improvement, the positioning pin is arranged on a side of the shift rod away from the first handle.

[0013] As a further improvement, the first handle part and the second handle part are provided with patterned grooves for increasing the surface friction of the handle parts.

[0014] The beneficial effects of the utility model are:

[0015] 1. Simple operation, time-saving and labor-saving: during operation, you only need to place the Kirschner wire close to the designated position of the special Kirschner wire forceps, and then start the operation. The special Kirschner wire forceps adopts a labor-saving lever to divide the entire cutting and bending action into multiple pinching actions of the first handle and the second handle. The entire operation process of cutting and bending only requires the special Kirschner wire forceps of the utility model, and no other tools are required. It can be completed in one go, saving operation time.

[0016] 2. The cutting length and bending radius are adjustable, suitable for Kirschner wires of various specifications: the positions of the first knife block and the second knife block are adjustable, and their positions are related to the length of the Kirschner wire cutting. The closer the tangent position of the first knife block and the second knife block is to the central axis, the longer the length of the Kirschner wire cut is. During the operation, a variety of Kirschner wires of different diameters will be used, and the required bending radii are different. The guide sleeve and the bending sleeve are replaceable parts, and their different specifications can be replaced to suit Kirschner wires of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of the utility model.

[0019] Figure 2 It is a front view provided by an embodiment of the utility model.

[0020] Figure 3 It is an exploded view provided by an embodiment of the utility model.

[0021] Figure 4 It is a schematic diagram of the structure of the first blade block provided in an embodiment of the utility model.

[0022] Figure 5 It is a schematic diagram of the guide shaft sleeve structure provided by an embodiment of the utility model.

[0023] Figure 6 It is a reference to the usage status provided by the embodiment of the utility model. Figure 1 .

[0024] Figure 7 It is a reference to the usage status provided by the embodiment of the utility model. Figure 2 .

[0025] Figure 8 It is a reference to the usage status provided by the embodiment of the utility model. Figure 3 .

[0026] Reference numerals:

[0027] 1. first handle; 11. first hand-held portion; 12. mounting portion;

[0028] 2. Second handle; 21. Second hand-held portion;

[0029] 3. bending assembly; 31. toothed disc; 311. first slide groove; 32. central shaft; 33. guide sleeve; 331. groove; 34. support; 35. first latch; 36. bending sleeve; 37. second latch; 38. positioning pin; 39. lever;

[0030] 4. cutting assembly; 41. first knife block; 411. second slide; 42. second knife block;

[0031] 5. Kirschner wire. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the utility model.

[0033] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] Reference Figure 1 As shown, a special forceps for Kirschner wires includes a first handle 1 and a second handle 2. The first handle 1 includes a first hand-held portion 11 and a mounting portion 12, and the second handle 2 includes a second hand-held portion 21. The first hand-held portion 11 and the second hand-held portion 21 are provided with patterned grooves for increasing the surface friction of the hand-held portions, thereby providing a better gripping feeling when in use.

[0035] The bending assembly 3 includes a toothed disc 31, which is arranged on the upper end surface of the mounting portion 12 through a central shaft 32. A first latch 35 for mounting a guide sleeve 33 is provided at the end of the central shaft 32. A groove 331 is provided on the side of the guide sleeve 33. The groove 331 limits the position of the Kirschner wire when it is bent around the groove 331 so that it is not easy to fall out. A bending sleeve 36 fixed by a second latch 37 is provided on the toothed disc 31. A lever 39 and a positioning pin 38 are provided on the second hand-held portion 21. The bending assembly 3 also includes a plurality of pillars 34 provided on the mounting portion 12.

[0036] The cutting assembly 4 includes a first knife block 41, a second slide groove 411 is provided in the first knife block 41, two bolts pass through the second slide groove 411 to fix the first knife block 41 on the first hand-held part 11; a first slide groove 311 is provided on the toothed disc 31, and the second knife block 42 is provided on the first slide groove 311. The first knife block 41 and the second knife block 42 are both configured to be easy to disassemble and assemble and the position can be adjusted, which is convenient for controlling the cutting length of the Kirschner wire, and the knife blocks can be regularly disassembled for grinding and maintenance, so that they are sharper when cutting.

[0037] The positioning pin 38 is arranged on the side of the lever 39 away from the first handle 1. When the second handle 2 drives the lever 39 to approach the first handle 1, the end of the lever 39 away from the hinge contacts with the teeth on the gear plate 31 to drive the gear plate 31 to rotate counterclockwise. When the gear plate 31 rotates, it drives the bending sleeve 36 and the second blade block 42 to rotate around the central shaft 32. When the first blade block 41 rotates to the cutting position, the blades of the second blade block 42 are exactly tangent to each other.

[0038] When in use, adjust the special forceps for Kirschner wires to the initial position, insert the Kirschner wire from the side of the special forceps for Kirschner wires, and pass through between the two pillars 34, between the guide sleeve 33 and the bending sleeve 36, and the second knife block 411 close to the side of the bending sleeve 36 in sequence, and reciprocate to pinch the first handle 1 and the second handle 2. When the toothed disk 31 rotates to the cutting position, the Kirschner wire is sheared and cut off by the first knife block 41 and the second knife block 42, and then continue to rotate the toothed disk 31 to continue to bend the Kirschner wire until the desired curvature is reached, completing the entire operation process.

[0039] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A special forceps for Kirschner wires, comprising a first handle (1) and a second handle (2), characterized in that: include: The first handle (1) comprises a first hand-held portion (11) and a mounting portion (12), and the second handle (2) comprises a second hand-held portion (21); A bending assembly (3), the bending assembly (3) comprising a toothed disc (31), the toothed disc (31) being arranged on the upper end surface of the mounting portion (12) via a central rotating shaft (32), the end of the central rotating shaft (32) being provided with a first latch (35) for mounting a guide sleeve (33), the toothed disc (31) being provided with a bending sleeve (36) fixed by a second latch (37), a lever (39) and a positioning pin (38) being provided on the second hand-held portion (21), the bending assembly (3) further comprising a plurality of pillars (34) arranged on the mounting portion (12); A cutting assembly (4), the cutting assembly (4) comprising a first cutting block (41) arranged on the first hand-held part (11), and a second cutting block (42) arranged on the toothed disc (31).

2. A special forceps for Kirschner wires according to claim 1, characterized in that: The toothed disc (31) is provided with a first sliding groove (311), and the second blade block (42) is arranged on the first sliding groove (311).

3. A special forceps for Kirschner wires according to claim 1, characterized in that: A second sliding groove (411) is provided in the first blade block (41), and two bolts pass through the second sliding groove (411) to fix the first blade block (41) to the first hand-held part (11).

4. A special forceps for Kirschner wires according to claim 1, characterized in that: The side surface of the guide sleeve (33) is provided with a groove (331).

5. The special forceps for Kirschner wire according to claim 1, characterized in that: The positioning pin (38) is arranged on a side of the lever (39) away from the first handle (1).

6. A special forceps for Kirschner wires according to claim 1, characterized in that: The first hand-held part (11) and the second hand-held part (21) are provided with patterned grooves for increasing the surface friction of the hand-held parts.

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