CN214180562U

CN214180562U - Bending device structure for Kirschner wire

Info

Publication number: CN214180562U
Application number: CN202022922660.9U
Authority: CN
Inventors: 袁建敏; 杨民; 康建会
Original assignee: Yijishan Hospital of Wannan Medical College
Current assignee: Yijishan Hospital of Wannan Medical College
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2021-09-14
Anticipated expiration: 2030-12-09

Abstract

The utility model discloses a bender structure for kirschner wire, which comprises a first handle and a fixed disk, wherein the front side wall of the fixed disk is provided with a clamping device for clamping the kirschner wire, the middle part of the front side wall of the fixed disk is fixedly connected with a guide wheel, the rear side wall of the fixed disk is rotatably connected with a turntable, the turntable rotates through a driving device, the side wall of the turntable is fixedly connected with a shifting shaft for shifting the bending of the end part of the kirschner wire, the utility model drives the turntable to drive the shifting shaft to rotate by pulling a second handle, at the moment, the shifting shaft shifts the kirschner wire to form a required 180-degree hook-shaped elbow around the guide wheel, can avoid the ke shi needle to withdraw from when the elbow embedding bone of ke shi needle like this, soft tissue irritation, sting skin or submerge bone face etc. effectively prevent inflammation and secondary damage or lead to later stage ke shi needle can't take out to the process of bending is labour saving and time saving, has important value and meaning to bone surgery.

Description

Bending device structure for Kirschner wire

Technical Field

The utility model relates to the technical field of medical equipment, specifically be a bender structure for ke shi needle.

Background

In the orthopedic surgery, the tension band is fixed in a common fixing mode and is mainly used for muscle stop bony prominence parts, such as ulna olecranal fracture, patella fracture, femoral greater trochanter fracture and the like, the Kirschner wire is used as a basic component of the tension band, the tail end is bent and properly countersunk to avoid withdrawal of the Kirschner wire, soft tissue irritation, skin puncture or bone surface immersion and the like, inflammation and secondary injury are caused or the Kirschner wire cannot be taken out in the later period, the Kirschner wire is bent generally by adopting common pliers in the clinical process at present, the tail end of the Kirschner wire is difficult to be bent to reach 180 degrees, and then a simple and practical Kirschner wire tail end bending device is designed to bend the tail end of the Kirschner wire by 180 degrees and has important value and significance for the orthopedic surgery, so that a bending device structure for the Kirschner wire is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bender structure for ke shi needle to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a bender structure for kirschner wire, includes the first in command, the tip fixedly connected with fixed disk of the first in command, be equipped with the clamping device who is used for pressing from both sides tight kirschner wire on the preceding lateral wall of fixed disk, preceding lateral wall middle part fixedly connected with leading wheel of fixed disk, the back lateral wall of fixed disk rotates and is connected with the carousel, the carousel rotates through drive arrangement, fixedly connected with is used for stirring the crooked axle of dialling of kirschner wire tip on the lateral wall of carousel, just dial the axle and pass the groove of stepping down and extend to the front side of fixed disk, the groove of stepping down opens on the lateral wall of fixed disk.

Preferably, clamping device includes the fixation clamp, it has the spout to open on one side of fixation clamp and the lateral wall that is located the fixed disk, the inside sliding connection of spout has the activity to press from both sides, the activity presss from both sides and opens the clamp groove that has centre gripping kirschner wire on the relative lateral wall of fixation clamp.

Preferably, the fixed disc is rotatably connected with a third handle, a connecting rod is hinged to the lower side wall of the third handle, and the other end of the connecting rod is hinged to the side wall of the movable clamp.

Preferably, the side wall of the first handle is provided with a hidden groove, the inside of the hidden groove is connected with a clamping block in a sliding manner through a spring, the end part of the clamping block is movably clamped in the clamping groove, and the clamping groove is formed in the side wall of the third handle.

Preferably, drive arrangement includes connecting piece, second handle and a plurality of dog, the connecting piece rotates the rear wall middle part of connecting at the fixed disk, and a plurality of dogs are fixed on the lateral wall of carousel with the form of array, just the second handle rotates to be connected on the connecting piece, the connecting piece realizes pulling second handle drive carousel with a plurality of dog activity joint and rotates.

Compared with the prior art, the beneficial effects of the utility model are that: the Kirschner wire is clamped by the clamping device, so that torsion to the corpus ossicle can be avoided when the Kirschner wire is bent, and secondary wound of the corpus ossicle is avoided; and the second handle is pulled to drive the turntable to drive the shifting shaft to rotate, the shifting shaft shifts the Kirschner wire to bend around the guide wheel to form a 180-degree hook-shaped elbow, so that the Kirschner wire can be prevented from withdrawing, soft tissue irritation, skin irritation or bone surface immersion and the like when the elbow of the Kirschner wire is embedded into the bone body, inflammation and secondary injury are effectively prevented or the Kirschner wire in the later period can not be taken out, the bending process is time-saving and labor-saving, and the rotary table has important value and significance for orthopedic surgery.

Drawings

Fig. 1 is a schematic view I of the overall structure of the present invention;

fig. 2 is a schematic view II of the overall structure of the present invention;

fig. 3 is a schematic view of the overall structure of the present invention;

FIG. 4 is a schematic view of the structure of the utility model in use;

fig. 5 is a schematic structural view I of the turntable, the connecting member, the second handle and the stopper of the present invention;

fig. 6 is a schematic structural view II of the turntable, the connecting member, the second handle and the stopper of the present invention;

fig. 7 is a schematic structural view III of the turntable, the connecting member, the second handle and the stopper of the present invention;

fig. 8 is an exploded view of the turntable, the connecting member, the second handle and the stopper of the present invention;

fig. 9 is a cross-sectional view of the first handle, the third handle, the clamping block and the clamping groove of the present invention;

FIG. 10 is a schematic view of the structure of the fixing clip, the sliding groove and the movable clip of the present invention;

fig. 11 is a schematic structural view of the tension band and the kirschner wire of the present invention mounted on the shaft.

In the figure: 1. the device comprises a first handle, 2, a fixed disc, 3, a clamping device, 301, a fixed clamp, 302, a sliding groove, 303, a movable clamp, 304, a clamp groove, 4, a guide wheel, 5, a rotating disc, 6, a shifting shaft, 7, an abdicating groove, 8, a driving device, 801, a connecting piece, 802, a second handle, 803, a stop block, 9, a third handle, 10, a connecting rod, 11, a hidden groove, 12, a clamping block, 13, a clamping groove, 14, a rotating groove, KSZ, a Kirschner wire, GT, a bone, ZLD and a tension band.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-11, the present invention provides a technical solution: the utility model provides a bender structure for kirschner wire, includes the first in command 1, the tip fixedly connected with fixed disk 2 of first in command 1, be equipped with the clamping device 3 that is used for pressing from both sides tight kirschner wire on the preceding lateral wall of fixed disk 2, preceding lateral wall middle part fixedly connected with leading wheel 4 of fixed disk 2, leading wheel 4 is the post form, and crooked messenger to the kirschner wire tip is being carried out bending to the kirschner wire tip (as shown in figure 3) with leading wheel 4 as the center, the back lateral wall of fixed disk 2 rotates and is connected with carousel 5, and the pivot of carousel 5 and the pivot of leading wheel 4 coincide each other, carousel 5 rotates through drive arrangement 8, as shown in figure 8, is equipped with rotary groove 14 in the back lateral wall middle part of fixed disk 2, and carousel 5 rotates and cup joints in rotary groove 14's inside, realizes then that carousel 5 rotates on fixed disk 2, fixedly connected with on the lateral wall of carousel 5 is used for stirring the crooked group axle 6 of kirschner wire tip, and the shifting shaft 6 passes through the abdicating groove 7 and extends to the front side of the fixed disc 2, the abdicating groove 7 is of an arc structure, the circle center of the abdicating groove 7 coincides with the circle center of the guide wheel 4, as shown in fig. 4, after the kirschner wire drills into the inner part of the bone body, the kirschner wire is fixed on the device through the clamping device 3, meanwhile, the end part of the kirschner wire is sequentially attached to the guide wheel 4 and the shifting shaft 6 (the guide wheel 4 and the shifting shaft 6 are positioned at two sides of the kirschner wire), when the turntable 5 is rotated, the shifting shaft 6 can perform circular motion around the guide wheel 4 in the abdicating groove 7, at the moment, the shifting shaft 6 can bend the end part of the kirschner wire, and the abdicating groove 7 is opened on the side wall of the fixed disc 2.

In order to fix the kirschner wire on the device and prevent a section of the kirschner wire which is positioned in the bone body from being damaged by torsion force during the bending process of the kirschner wire, specifically, the clamping device 3 comprises a fixed clamp 301, a sliding groove 302 and a movable clamp 303, the sliding groove 302 is formed on one side of the fixed clamp 301 and is positioned on the side wall of the fixed disk 2, the movable clamp 303 is connected in the sliding groove 302 in a sliding manner, the cross section of the sliding groove 302 and the cross section of the movable clamp 302 are both in a T-shaped structure, the two T-shaped structures are matched, clamping grooves 304 for clamping the kirschner wire are formed on the opposite side walls of the movable clamp 303 and the fixed clamp 301, when the movable clamp 303 slides in the sliding groove 302 and gradually approaches the fixed clamp 301, the kirschner wire can be clamped in the clamping grooves 304, otherwise, when the movable clamp 303 slides in the sliding groove 302 and gradually moves away from the fixed clamp 301, the k-wire held inside the clip groove 304 can be removed.

In order to make the movable clamp 303 slide in the sliding slot 302 and achieve the rapid reinforcement and removal of the kirschner wire, specifically, the fixed disk 2 is rotatably connected with a third handle 9, a connecting rod 10 is hinged on the lower side wall of the third handle 9, and the other end of the connecting rod 10 is hinged on the side wall of the movable clamp 303, when the third handle 9 is rotated downwards, the third handle 9 drives the movable clamp 303 to slide towards the side close to the fixed clamp 301 through the connecting rod 10 and then reinforces the kirschner wire in the inside of the clamp slot 304, conversely, when the third handle 9 is rotated upwards, the third handle 9 pulls the movable clamp 303 to slide towards the side far away from the fixed clamp 301 through the connecting rod 10, and then the kirschner wire can be removed from the inside of the clamp slot 304.

As shown in fig. 9, in order to stably fix the movable clamp 303 and the fixed clamp 301 in the process of clamping the kirschner wire, specifically, a hidden groove 11 is formed on a side wall of the first handle 1, a latch 12 is slidably connected inside the hidden groove 11 through a spring, the spring has a certain elastic force, the spring applies an elastic force sliding leftward to the latch 12 without being affected by an external force, an end portion of the latch 12 is movably clamped inside a clamping groove 13, the clamping groove 13 is formed on a side wall of the third handle 9, the third handle 9 is rotated downward (in the process, the movable clamp 303 slides toward one side of the fixed clamp 301 to play a role of reinforcing the kirschner wire), when the third handle 9 is rotated downward to a maximum extent, the latch 12 is clamped inside the clamping groove 13 (as shown in fig. 9, a left end of the latch 12 is an inclined surface, and when the third handle 9 contacts the latch 12, the third handle 9 extrudes the latch 12 into the interior of the hidden groove 11 by pressing, then along with the rotation of third handle 9, the oral area of draw-in groove 13 can just face the left side of fixture block 12, the inside of draw-in groove 13 is gone into to the automatic card of the elasticity of the spring of fixture block 12 this moment), realize then that third handle 9 fixes on first in command 1, the activity is pressed from both sides 303 and also can be fixed this moment, when needing to take out the kirschner wire, manual right slip fixture block 12, make fixture block 12 and draw-in groove 13 break away from the joint, upwards rotate third handle 9 this moment alright realize cancelling the centre gripping to the kirschner wire, then can take off the kirschner wire from the device.

As shown in fig. 5-8, in order to facilitate the driving of the rotation plate 5 with the dial 6, specifically, the driving device 8 includes a connecting member 801, a second handle 802 and a plurality of stoppers 803, the connecting member 801 is rotatably connected to the middle portion of the rear side wall of the fixed plate 2, the plurality of stoppers 803 are fixed to the side wall of the rotation plate 5 by bolts in an array, and the second handle 802 is rotatably connected to the connecting member 801, the connecting member 801 is movably engaged with the plurality of stoppers 803 to allow the second handle 802 to be pulled to drive the rotation plate 5 to rotate, after the k-wire is fastened to the device, the second handle 802 is adjusted to the state shown in fig. 5, when the second handle 802 contacts with any one of the stoppers 803, then the second handle 802 is rotated to rotate the rotation plate 5 with the dial 6 after the second handle 802 applies a force to the stopper 803, when the state shown in fig. 6 is rotated (in order to reduce the rotation amplitude of the second handle 802, and at the same time, ensuring that the end of the kirschner wire is bent 180 degrees), rotating the second handle 802 on the connecting piece 801, returning the second handle 802 to the state shown in fig. 5 after rotating the second handle 802 to the state shown in fig. 7, and then rotating the second handle 802 again to the state shown in fig. 6, wherein the rotation amplitude of the rotary disc 5 is continuously increased, and the steps are repeated, and then bending the end of the kirschner wire to 180 degrees.

The working principle is as follows: when the fracture is treated (for example, the olecranon fracture, the patella fracture, the femoral greater trochanter fracture and other muscle stop bony convex parts), firstly, the kirschner wire is drilled into the interior of the bone body, when the end part of the kirschner wire penetrates through the bone body, the kirschner wire is cut off at a proper length position, then the device is used for bending the end part of the kirschner wire, when the device is used, a first handle 1 is held, then the device is moved, the kirschner wire is positioned between a fixed clamp 301 and a movable clamp 303, then a third handle 9 is rotated downwards, the third handle 9 drives the movable clamp 303 to move through a connecting rod 10 and then clamps the kirschner wire, when a clamping block 12 is clamped into the interior of a clamping groove 13, the movable clamp 303 is promoted to be fixed, so that the kirschner wire can be fixed on the device, then the second handle 802 is clamped with any one of the stops 803 and is rotated, so that the second handle 802 can carry the rotating disc 5 to rotate, at this time, the dial 5 can drive the dial shaft 6 to rotate, so that the end part of the kirschner wire can be pulled by the dial shaft 6 to bend around the guide wheel 4, the guide wheel 4 forms a required 180-degree hook-shaped elbow, after the end part of the kirschner wire is bent, the clamping block 12 is manually slid to enable the clamping block 12 to be separated from the clamping groove 13, the third handle 9 is pulled upwards to enable the third handle 9 to rotate upwards, the third handle 9 drives the movable clamp 303 to reversely slide through the connecting rod 10, the kirschner wire can be taken down from the device, the bending operation of the end part of the kirschner wire is achieved, then as shown in fig. 11, the bending head of the kirschner wire is embedded into a bone body, and the tension band is hooped on the kirschner wire, and the effect of treating fracture is achieved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A bender construction for K-wires, comprising a first handle (1), characterized in that: tip fixedly connected with fixed disk (2) of first in command (1), be equipped with clamping device (3) that are used for pressing from both sides tight kirschner wire on the preceding lateral wall of fixed disk (2), preceding lateral wall middle part fixedly connected with leading wheel (4) of fixed disk (2), the back lateral wall of fixed disk (2) rotates and is connected with carousel (5), carousel (5) rotate through drive arrangement (8), fixedly connected with is used for stirring the crooked axle (6) of dialling of kirschner wire tip on the lateral wall of carousel (5), just dial axle (6) pass and step down groove (7) and extend to the front side of fixed disk (2), step down groove (7) and open on the lateral wall of fixed disk (2).

2. A bender construction for k-wires according to claim 1, characterized in that: clamping device (3) include fixation clamp (301), open on one side of fixation clamp (301) and the lateral wall that is located fixed disk (2) has spout (302), the inside sliding connection of spout (302) has activity to press from both sides (303), it has the double-layered groove (304) of centre gripping ke shi needle to open on the relative lateral wall of activity clamp (303) and fixation clamp (301).

3. A bender construction for k-wires according to claim 2, characterized in that: the fixed disc (2) is rotatably connected with a third handle (9), a connecting rod (10) is hinged to the lower side wall of the third handle (9), and the other end of the connecting rod (10) is hinged to the side wall of the movable clamp (303).

4. A bender construction for k-wires according to claim 3, characterized in that: open on the lateral wall of first handle (1) has camera obscura (11), there is fixture block (12) inside through spring sliding connection in camera obscura (11), the inside of the movable joint of tip in draw-in groove (13) of fixture block (12), draw-in groove (13) are opened on the lateral wall of third handle (9).

5. A bender construction for k-wires according to claim 1, characterized in that: drive arrangement (8) include connecting piece (801), second handle (802) and a plurality of dog (803), connecting piece (801) rotate to be connected at the back lateral wall middle part of fixed disk (2), and a plurality of dog (803) are fixed on the lateral wall of carousel (5) with the form of array, just second handle (802) rotate to be connected on connecting piece (801), connecting piece (801) and a plurality of dog (803) activity joint realize pulling second handle (802) drive carousel (5) and rotate.