Kirschner wire cutting and bending integrated tool

Abstract

The invention relates to the technical field of medical instruments, in particular to a Kirschner wire cutting and bending integrated tool which comprises a forceps head, a first fluted disc, a fixing rod and a positioning rod, the first fluted disc is arranged on the forceps head in a unidirectional rotation mode and is coaxial with the fixing rod, a first cutting edge is arranged on the first fluted disc, and a second cutting edge is arranged on the forceps head. The first fluted disc rotates to enable the first cutting blade and the second cutting blade to coincide so as to cut off the kirschner wire. A radial groove is formed in the circumferential surface of the first fluted disc; the positioning rod and the first fluted disc are radially arranged along the fixed rod; during bending, the kirschner wire is arranged in the groove, located between the positioning rod and the fixing rod and in contact with the positioning rod and the fixing rod, and the positioning rod is located on the front side of the rotation direction of the kirschner wire around the fixing rod. The first fluted disc rotates to enable the first cutting blade and the second cutting blade to shear the kirschner wire in a staggered manner; during bending, the fixing rod, the positioning rod and the first fluted disc form three-point support, the kirschner wire can be bent by rotating the first fluted disc, the positioning rod counteracts bending torsional force, bones are prevented from being injured, medical risks are reduced, single-person operation can be achieved, operation stability is improved, and manpower is saved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to an integrated tool for cutting and bending Kirschner wires. Background Technology

[0002] Currently, Kirschner wires are widely used in orthopedic surgery for fracture fixation, primarily to assist bone plates or intramedullary nails in fixing smaller fracture fragments outside the main fracture, or as the primary fixation device when using tension band fixation techniques. When Kirschner wires are used for final fracture fixation or are expected to remain in the body for an extended period, orthopedic surgeons often need to trim and bend the excess portion of the Kirschner wire's external tail end to reduce or avoid postoperative complications such as irritation of the skin and damage to surrounding tissues caused by the sharp protrusion of the Kirschner wire.

[0003] In clinical practice, bending thicker Kirschner wires (2.0mm, 2.5mm, 3.0mm in diameter) is quite difficult and requires two people to work together: an assistant uses a wire holder or forceps to hold the Kirschner wire at the wire-bone junction for counter-fixation, while the surgeon uses another wire holder or forceps to hold the tail end of the Kirschner wire and uses the twisting force of the wrist joint to bend it. After bending, the excess portion of the Kirschner wire must be cut off with wire cutters. This method is extremely inconvenient, not only delaying the progress of the surgery and increasing manpower input, but also making it easy for the two people to have coordination errors, which can cause secondary injury to the patient. It fails to meet the requirements of efficient, convenient, and safe operation in orthopedic surgery. Summary of the Invention

[0004] Therefore, it is necessary to provide an integrated tool for cutting and bending Kirschner wires to address the current inconvenience of cutting and bending Kirschner wires.

[0005] The above objectives are achieved through the following technical solutions: A Kirschner wire cutting and bending integrated tool includes a pliers head, a first toothed disc, a fixing rod, a positioning rod, and a drive mechanism. The first toothed disc is unidirectionally mounted on the pliers head around its own axis. The fixing rod is disposed on the pliers head and coaxial with the first toothed disc, passing through the first toothed disc and rotatably connected to it. The first toothed disc has a first cutting edge, and the pliers head has a second cutting edge. Rotation of the first toothed disc causes the first and second cutting edges to coincide in the circumferential direction of the first toothed disc, thereby cutting the Kirschner wire. The positioning rod is disposed on the pliers head and arranged radially with the first toothed disc along the fixing rod. A groove is formed on the circumferential surface of the first toothed disc, passing through the center of the first toothed disc in the radial direction. The arc formed by the groove on the circumferential surface of the first toothed disc is a dominant arc. During bending, the Kirschner wire is inserted into the groove of the first toothed disc and located between the positioning rod and the fixing rod, and contacts the positioning rod and the fixing rod respectively. The positioning rod is located in front of the Kirschner wire in the rotation direction of the first toothed disc. The drive mechanism is used to drive the first toothed disc to rotate relative to the pliers head.

[0006] Preferably, a first cutting hole is formed on the first toothed disc, and the wall of the first cutting hole forms the first cutting edge; a second cutting hole is formed on the pliers head, and the wall of the second cutting hole forms the second cutting edge.

[0007] Preferably, the pliers head has multiple positioning holes arranged along the circumferential direction of the fixing rod, and the positioning rod is slidably disposed in one of the positioning holes.

[0008] Preferably, the driving mechanism includes a connecting block and two handles. The connecting block is rotatably mounted on the pliers head. A gear transmission assembly is provided between the connecting block and the first gear disc. The rotation of the connecting block drives the first gear disc to rotate through the gear transmission assembly. One handle is connected to the pliers head, and the other handle is connected to the connecting block.

[0009] Preferably, the gear transmission assembly includes a second gear disk and a first ratchet component. The second gear disk is rotatably mounted on the pliers head and coaxial with the connecting block. The second gear disk meshes with the first gear disk. The rotation of the connecting block drives the second gear disk to rotate unidirectionally through the first ratchet component.

[0010] Preferably, the diameter of the first toothed disc is larger than the diameter of the second toothed disc.

[0011] Preferably, a second ratchet is provided between the first toothed disc and the pliers head, and the first toothed disc rotates unidirectionally relative to the pliers head through the second ratchet.

[0012] Preferably, the pliers head includes a support block and two fixing plates symmetrically arranged about the support block. The support block is located between the two fixing plates and is connected to the two fixing plates respectively. The two fixing plates are located on both sides in the axial direction of the first toothed disc and are in contact with the first toothed disc respectively.

[0013] Preferably, the two fixing plates are provided with receiving grooves on their adjacent surfaces, the two ends of the first toothed disc are located in the corresponding receiving grooves, and the circumferential surface of the first toothed disc is in sliding contact with the two fixing plates respectively.

[0014] Preferably, one side wall of the first cutting hole where the first cutting edge is located is an inclined surface, and in the direction of rotation of the first gear plate, the inclined surface gradually moves away from the Kirschner wire from the position close to the first cutting edge to the position far away from the first cutting edge.

[0015] The beneficial effects of this invention are as follows: By driving the first toothed disc to rotate relative to the clamp head through the driving mechanism, the first cutting edge on the first toothed disc can approach and cooperate with the second cutting edge on the clamp head, forming an interlaced shearing in the circumference of the first toothed disc, thereby stably cutting the Kirschner wire; during the bending operation, the contact position between the first toothed disc and the Kirschner wire and the positioning rod are located on the same side of the Kirschner wire, and the fixing rod is located on the other side of the Kirschner wire, forming a three-point support structure. Rotating the first toothed disc causes the Kirschner wire to bend around the fixing rod, and the positioning rod provides reverse support to the Kirschner wire, effectively counteracting the torsional force generated when the Kirschner wire is bent, preventing the torsional force from being transmitted to the bone part connected to the Kirschner wire, reducing medical risks, and allowing for single-person operation, improving operational stability and reducing labor costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an integrated tool for cutting and bending Kirschner wires, provided in an embodiment of the present invention. Figure 2 This is a schematic diagram of the head of a pliers for cutting and bending Kirschner wires, provided in an embodiment of the present invention. Figure 3 A partial exploded view of an integrated tool for cutting and bending Kirschner wires, provided in an embodiment of the present invention; Figure 4 A top view of the head of a pliers for a Kirschner wire cutting and bending integrated tool provided in an embodiment of the present invention; Figure 5 for Figure 4 Sectional view along the middle AA direction; Figure 6 A side view of the head of a pliers for an integrated Kirschner wire cutting and bending tool provided in an embodiment of the present invention; Figure 7 for Figure 6 Sectional view along the BB direction.

[0017] in: 100. Fixing plate; 101. Support block; 102. Receiving groove; 103. First gear plate; 104. Fixing rod; 105. Positioning rod; 106. First cutting edge; 107. First cutting hole; 108. Second cutting edge; 109. Second cutting hole; 110. Groove; 111. Positioning hole; 112. Connecting block; 113. Handle; 120. Second gear plate; 121. Fixing shaft; 122. Racket tooth; 123. Pawl; 124. Gear ring; 125. Slider; 126. First spring; 127. Slide groove. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0019] The component numbers used in this document, such as "first," "second," etc., are merely for distinguishing the described objects and have no sequential or technical meaning. Unless otherwise specified, the terms "connection" and "linkage" used in this invention include both direct and indirect connections (linkages). It should be understood that the terms "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0020] In this invention, unless otherwise explicitly specified and limited, the first feature above or below the second feature may be in direct contact with the first feature, or indirect contact via an intermediate medium. Furthermore, "above," "over," and "on top" of the first feature may mean the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" of the first feature may mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] like Figures 1 to 7As shown, this embodiment of the invention provides an integrated tool for cutting and bending Kirschner wires, including a pliers head, a first toothed disc 103, a fixing rod 104, a positioning rod 105, and a driving mechanism. The first toothed disc 103 is unidirectionally mounted on the pliers head around its own axis. The fixing rod 104 is disposed on the pliers head and coaxial with the first toothed disc 103. The fixing rod 104 passes through the first toothed disc 103 and is rotatably connected to the first toothed disc 103. The first toothed disc 103 is provided with a first cutting edge 106, and the pliers head is provided with a second cutting edge 108. The rotation of the first toothed disc 103 causes the first cutting edge 106 and the second cutting edge 108 to coincide in the circumferential direction of the first toothed disc 103, thereby achieving the cutting and bending of Kirschner wires. Cutting; the positioning rod 105 is disposed on the pliers head and arranged radially with the first toothed disc 103 along the fixing rod 104. The circumferential surface of the first toothed disc 103 has a groove 110 that passes through the center of the first toothed disc 103 radially. The arc formed by the groove 110 on the circumferential surface of the first toothed disc 103 is a superior arc. When bending, the Kirschner wire is inserted into the groove 110 of the first toothed disc 103 and is located between the positioning rod 105 and the fixing rod 104, and contacts the positioning rod 105 and the fixing rod 104 respectively. The positioning rod 105 is located in front of the Kirschner wire in the rotation direction of the first toothed disc 103. The driving mechanism is used to drive the first toothed disc 103 to rotate relative to the pliers head.

[0022] The first toothed disc 103 is driven to rotate relative to the clamp head by the drive mechanism, so that the first cutting edge 106 on the first toothed disc 103 can approach and cooperate with the second cutting edge 108 on the clamp head, forming an interlaced shearing in the circumference of the first toothed disc 103, thereby stably cutting the Kirschner wire. During the bending operation, the contact position between the first toothed disc 103 and the Kirschner wire and the positioning rod 105 are located on the same side of the Kirschner wire, and the fixing rod 104 is located on the other side of the Kirschner wire. The three form a three-point support structure. Rotating the first toothed disc 103 causes the Kirschner wire to bend around the fixing rod 104. The positioning rod 105 provides reverse support to the Kirschner wire, effectively counteracting the torsional force generated when the Kirschner wire is bent, preventing the torsional force from being transmitted to the bone part connected to the Kirschner wire, reducing medical risks, and allowing single-person operation, improving operational stability and reducing labor costs.

[0023] In this embodiment, a first cutting hole 107 is provided on the first toothed disc 103, and the hole wall of the first cutting hole 107 forms a first cutting edge 106; a second cutting hole 109 is provided on the pliers head, and the hole wall of the second cutting hole 109 forms a second cutting edge 108.

[0024] Specifically, the first cutting hole 107 and the second cutting hole 109 both penetrate the corresponding first toothed disc 103 and the pliers head along the axial direction of the fixing rod 104. Before cutting the Kirschner wire, the first cutting hole 107 and the second cutting hole 109 must be aligned and connected in the axial direction of the fixing rod 104. Then, the Kirschner wire is passed through the first cutting hole 107 and the second cutting hole 109, and the first toothed disc 103 is driven to rotate by the drive mechanism, so that the first cutting edge 106 and the second cutting edge 108 are staggered to achieve cutting. The first cutting hole 107 and the second cutting hole 109 can limit the slippage of the Kirschner wire with high hardness when it is sheared, ensuring stable and reliable cutting.

[0025] In this embodiment, the pliers head is provided with multiple positioning holes 111, which are arranged along the circumferential direction of the fixing rod 104, and the positioning rod 105 is slidably disposed in one of the positioning holes 111.

[0026] The positioning rod 105 has a large end and a small end. The diameter of the large end is larger than the diameter of the positioning hole 111, and the diameter of the small end matches the diameter of the positioning hole 111. The length of the small end is greater than the thickness of the pliers head, facilitating the ejection of the positioning rod 105 and its replacement into different positioning holes 111. The positioning rod 105 is magnetic and can be attracted to the pliers head, improving installation stability. By providing multiple positioning holes 111, the position of the positioning rod 105 on the pliers head can be adjusted according to the position and angle of the Kirschner wire, improving the bending flexibility of the Kirschner wire.

[0027] In this embodiment, the driving mechanism includes a connecting block 112 and two handles 113. The connecting block 112 is rotatably mounted on the pliers head. A gear transmission assembly is provided between the connecting block 112 and the first gear disc 103. The rotation of the connecting block 112 drives the first gear disc 103 to rotate through the gear transmission assembly. One handle 113 is connected to the pliers head, and the other handle 113 is connected to the connecting block 112.

[0028] Specifically, by holding the two handles 113 and bringing them close together, the connecting block 112 and the pliers head can rotate relative to each other. After rotation, the connecting block 112 drives the first gear plate 103 to rotate through the gear transmission assembly, thereby causing the first gear plate 103 to cut or bend the Kirschner wire.

[0029] In this embodiment, the gear transmission assembly includes a second gear disk 120 and a first ratchet component. The second gear disk 120 is rotatably mounted on the pliers head and coaxial with the connecting block 112. The second gear disk 120 meshes with the first gear disk 103. The connecting block 112 rotates to drive the second gear disk 120 to rotate unidirectionally through the first ratchet component.

[0030] Specifically, the first ratchet component includes a fixed shaft 121, ratchet teeth 122, and pawl 123. The fixed shaft 121 is rotatably mounted on the pliers head and fixedly connected to the connecting block 112. The connecting block 112 rotates around the fixed shaft 121. The second gear disc 120 is sleeved on the fixed shaft 121 and rotatably connected to the fixed shaft 121. The ratchet teeth 122 are located on the side of the second gear disc 120 near the fixed shaft 121. The pawl 123 is rotatably mounted on the fixed shaft 121 and engages with the ratchet teeth 122. A spring is provided between the pawl 123 and the fixed shaft 121. The spring keeps the pawl 123 and the ratchet teeth 122 in constant contact, thereby allowing the second gear disc 120 to rotate only in one direction relative to the fixed shaft 121.

[0031] In this embodiment, the diameter of the first gear disk 103 is larger than the diameter of the second gear disk 120. The first gear disk 103 and the second gear disk 120 form a speed reduction and torque amplification mechanism. Rotating the second gear disk 120 allows the first gear disk 103 to obtain greater torque, thus achieving labor-saving operation.

[0032] In this embodiment, a second ratchet is provided between the first toothed disc 103 and the pliers head, and the first toothed disc 103 rotates unidirectionally relative to the pliers head through the second ratchet.

[0033] Specifically, the second ratchet mechanism includes a toothed ring 124, a slider 125, and a first spring 126. The toothed ring 124 is sleeved on the fixed rod 104 and connected to the end face of the first toothed disc 103. The toothed ring 124 is rotatably connected to the fixed rod 104. A groove 127 is provided on the pliers head. The slider 125 is slidably disposed in the groove 127 along the axial direction of the toothed ring 124, and is sleeved on the fixed rod 104 and slidably connected to the fixed rod 104. The groove 127 is a rectangular groove, and the slider 125 is a rectangular block. The slider 125 cannot rotate circumferentially within the groove 127. The teeth on the toothed ring 124 are helical teeth, and the slider 125 has a ring of helical teeth arranged along the circumferential direction of the fixed rod 104. The slider 125 can mesh with the toothed ring 124 through its own helical teeth, so that the toothed ring 124 can only rotate in a single direction. When the second gear 120 is driven to rotate by the handle 113 and the first ratchet mechanism, the first gear 103 can continuously apply force to the Kirschner wire, gradually completing the cutting or bending of the Kirschner wire.

[0034] The toothed ring 124 is rotatably disposed in the slide groove 127 and is rotatably connected to the pliers head through the slide groove 127. The fixing rod 104 passes through the pliers head along its own axial direction and can be pulled out of the pliers head, which facilitates the removal of the Kirschner wire after it is bent.

[0035] In this embodiment, the pliers head includes a support block 101 and two fixing plates 100 symmetrically arranged about the support block 101. The support block 101 is located between the two fixing plates 100 and is connected to both fixing plates 100 respectively. The two fixing plates 100 are located on both sides of the first gear disc 103 in the axial direction and are in contact with the first gear disc 103 respectively. The connecting block 112 and the two fixing plates 100 can be riveted together, which facilitates processing and assembly of the first gear disc 103.

[0036] Specifically, each fixed plate 100 has a groove 127, and two second ratchet components are provided, located at both ends of the first gear 103. The slider 125 in each second ratchet component is located in the groove 127 on the corresponding fixed plate 100. The two ends of the fixed rod 104 are connected to the two fixed plates 100 respectively, so that the fixed rod 104 is subjected to uniform force and the rotational stability of the first gear 103 is improved.

[0037] In this embodiment, two fixing plates 100 are respectively provided with receiving grooves 102 on their sides that are close to each other. The two ends of the first toothed disc 103 are located in the corresponding receiving grooves 102, and the circumferential surface of the first toothed disc 103 is in sliding contact with the two fixing plates 100 respectively.

[0038] Specifically, the two fixing plates 100 can circumferentially limit the first gear plate 103 through the receiving groove 102, reduce the torsional force on the fixing rod 104, and prevent the fixing rod 104 from deforming.

[0039] In this embodiment, as Figure 7 As shown, one side wall of the first cutting hole 107 where the first cutting edge 106 is located is an inclined surface. In the direction of rotation of the first gear plate 103, the inclined surface gradually moves away from the Kirschner wire from the position close to the first cutting edge 106 to the position far away from the first cutting edge 106.

[0040] When the first cutting edge 106 and the second cutting edge 108 cut the Kirschner wire, the Kirschner wire is located in the second cutting hole 109. The first toothed disc 103 only contacts the Kirschner wire at the first cutting edge 106. When the first cutting edge 106 contacts the Kirschner wire in the second cutting hole 109, the force-bearing area of ​​the Kirschner wire is reduced, which makes it easier for the Kirschner wire to be cut.

[0041] The working principle of the integrated cutting and bending tool for Kirschner wires provided in the above embodiments is as follows: When cutting a Kirschner wire, first rotate the first toothed disc 103 so that the first cutting hole 107 and the second cutting hole 109 coincide in the axial direction of the first toothed disc 103. Then, insert the Kirschner wire into the first cutting hole 107 and the second cutting hole 109, and move the second cutting edge 108 to the desired cutting position. Then, grasp the two handles 113 and bring them close together. One of the handles 113 drives the fixed shaft 121 to rotate relative to the pliers head. The fixed shaft 121 drives the second toothed disc 120 to rotate through the engagement of the pawl 123 and the ratchet 122. The rotation of the second toothed disc 120 drives the first toothed disc 103 to rotate. The rotation of the first toothed disc 103 drives the first cutting edge 106 to move closer to the Kirschner wire. The Kirschner wire gradually breaks under the action of the first cutting edge 106 and the second cutting edge 108. If the Kirschner wire is not cut even when the two handles 113 are moved to the closest position, simply control the two handles 113 to move away from each other and then bring them closer again, repeating the above operation until the Kirschner wire is completely cut.

[0042] When the two handles 113 move away from each other, the toothed ring 124 and the slider 125 in the second ratchet component engage under the action of the first spring 126, thereby restricting the first toothed disc 103 from flipping and the second toothed disc 120 from rotating in the opposite direction. At the same time, the handle 113 connected to the connecting block 112 drives the fixed shaft 121 to rotate in the opposite direction. The fixed shaft 121 drives the pawl 123 on it to rotate synchronously. The pawl 123 rotates around the fixed shaft 121 relative to the ratchet 122, preparing for the next shearing action.

[0043] When it is necessary to bend the Kirschner wire, first adjust the initial angle of the first toothed disc 103 according to the position angle of the Kirschner wire, then insert one end of the Kirschner wire into the groove 110 on the first toothed disc 103, so that the end of the Kirschner wire passes over the fixing rod 104, and leave the length required for bending. Then, the positioning rod 105 is inserted into the appropriate positioning hole 111, and the positioning rod 105 is positioned on the side of the Kirschner wire away from the fixing rod 104. The positioning rod 105, the fixing rod 104, and the first toothed disc 103 together position the Kirschner wire. Next, the handles 113 are held so that the two handles 113 are brought closer together. The action process is the same as when cutting the Kirschner wire. The first toothed disc 103 will drive the Kirschner wire on the side of the fixing rod 104 away from the positioning rod 105 to rotate around the fixing rod 104, so that the Kirschner wire is wrapped around the fixing rod 104. As the first toothed disc 103 rotates, the rotation angle of the Kirschner wire increases until the preset angle is reached. If the bending angle of the Kirschner wire is greater than 180 degrees, the fixing rod 104 must be pulled out first when removing the Kirschner wire. If the bending angle of the Kirschner wire is less than 180 degrees, the Kirschner wire can be removed simply by removing the fixing rod 104 from the bent part of the Kirschner wire.

[0044] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A tool for cutting and bending Kirschner wires in one piece, characterized in that, include: The pliers consist of a pliers head, a first toothed disc, a fixing rod, a positioning rod, and a drive mechanism. The first toothed disc is unidirectionally mounted on the pliers head, rotating around its own axis. The fixing rod is located on the pliers head and coaxial with the first toothed disc, passing through the first toothed disc and rotatably connected to it. The first toothed disc has a first cutting edge, and the pliers head has a second cutting edge. Rotation of the first toothed disc causes the first and second cutting edges to coincide in the circumferential direction of the first toothed disc, thereby cutting the Kirschner wire. The positioning rod is located on the pliers head and arranged radially with the first toothed disc along the fixing rod. A groove is formed on the circumferential surface of the first toothed disc, passing through the center of the first toothed disc in the radial direction. The arc formed by the groove on the circumferential surface of the first toothed disc is a dominant arc. During bending, the Kirschner wire is inserted into the groove of the first toothed disc and located between the positioning rod and the fixing rod, contacting both the positioning rod and the fixing rod respectively. The positioning rod is located in front of the Kirschner wire in the rotation direction of the first toothed disc. The drive mechanism is used to drive the first toothed disc to rotate relative to the pliers head.

2. The integrated tool for cutting and bending Kirschner wires according to claim 1, characterized in that, The first toothed disc has a first cutting hole, and the wall of the first cutting hole forms the first cutting edge; the pliers head has a second cutting hole, and the wall of the second cutting hole forms the second cutting edge.

3. The integrated tool for cutting and bending Kirschner wires according to claim 1, characterized in that, The pliers head has multiple positioning holes arranged along the circumferential direction of the fixing rod, and the positioning rod is slidably set in one of the positioning holes.

4. The integrated tool for cutting and bending Kirschner wires according to claim 1, characterized in that, The drive mechanism includes a connecting block and two handles. The connecting block is rotatably mounted on the pliers head. A gear transmission assembly is provided between the connecting block and the first gear disc. The rotation of the connecting block drives the first gear disc to rotate through the gear transmission assembly. One handle is connected to the pliers head, and the other handle is connected to the connecting block.

5. The integrated tool for cutting and bending Kirschner wires according to claim 4, characterized in that, The gear transmission assembly includes a second gear disk and a first ratchet component. The second gear disk is rotatably mounted on the pliers head and coaxial with the connecting block. The second gear disk meshes with the first gear disk. The rotation of the connecting block drives the second gear disk to rotate unidirectionally through the first ratchet component.

6. The integrated tool for cutting and bending Kirschner wires according to claim 5, characterized in that, The diameter of the first toothed disc is larger than the diameter of the second toothed disc.

7. The integrated tool for cutting and bending Kirschner wires according to claim 1, characterized in that, A second ratchet is provided between the first toothed disc and the pliers head, and the first toothed disc rotates unidirectionally relative to the pliers head through the second ratchet.

8. The integrated tool for cutting and bending Kirschner wires according to claim 2, characterized in that, The clamp head includes a support block and two fixing plates symmetrically arranged about the support block. The support block is located between the two fixing plates and is connected to the two fixing plates respectively. The two fixing plates are located on both sides in the axial direction of the first toothed disc and are in contact with the first toothed disc respectively.

9. A Kirschner wire cutting and bending integrated tool according to claim 8, characterized in that, Two fixed plates are provided with receiving grooves on their adjacent surfaces. The two ends of the first toothed disc are located in the corresponding receiving grooves, and the circumferential surface of the first toothed disc is in sliding contact with the two fixed plates respectively.

10. A Kirschner wire cutting and bending integrated tool according to claim 2, characterized in that, The side wall of the first cutting hole where the first cutting edge is located is an inclined surface. In the direction of rotation of the first gear plate, the inclined surface gradually moves away from the Kirschner wire from the position close to the first cutting edge to the position far away from the first cutting edge.

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