CN112869860A

CN112869860A - Kirschner wire operating forceps

Info

Publication number: CN112869860A
Application number: CN201911208697.0A
Authority: CN
Inventors: 刘晓霞
Original assignee: Zhengzhou Zezheng Technical Services Ltd
Current assignee: Zhengzhou Zezheng Technical Services Ltd
Priority date: 2019-11-30
Filing date: 2019-11-30
Publication date: 2021-06-01

Abstract

A Kirschner wire surgical forceps comprises two cheek rotating parts which rotate relatively, wherein each cheek rotating part extends out of one end of each forceps head, and the two forceps heads form an open forceps mouth; every cheek portion rotating part stretches out a handle, its characterized in that respectively to the other end: the binding clip is two holding heads provided with mutually matched transverse groove holding surfaces. The invention has simple structure and solves the problems of clamping, bending and cutting off the Kirschner wire in the orthopaedics department.

Description

Kirschner wire operating forceps

Technical Field

The invention belongs to an orthopedic surgical instrument, in particular to an orthopedic kirschner wire clamping, bending and cutting surgical forceps.

Background

The kirschner wire is a commonly used internal fixation material in orthopedics, is a slender cylinder structure with a sharp end, the specification of the kirschner wire is generally fixed at about twenty centimeters, and the diameters of the kirschner wire are different from 0.5 to 3.5 millimeters. The bone fracture fixation device is used for fixing short fractures or avulsion fractures and other fractures with low stress, and is also commonly used for fixing temporary fracture blocks in orthopedic operations. Although the kirschner wire provides a lot of convenience for fracture reduction and fixation, a plurality of complications exist, and the complications mainly comprise two aspects: the sharp tail end of the kirschner wire protrudes the surrounding soft tissues and the kirschner wire is displaced to cause loosening.

To solve the above problems, Kramer professor of washington university in usa introduced a surgical method of bending the tail end of kirschner wire by 180 ° through 7 steps, and researchers collected 56 cases (51 patients) of all displaced calcaneus fractures in 2008 a whole year, 11 of them were not fixed with kirschner wire, and 19 were followed up for less than one year. The 86 Kirschner wires are shared by the rest 25 (24 patients) of fractures, and all the fractures adopt bent tail ends. Follow-up is averaged for 2.26 years (12-46 months) from postoperative to end. The X-ray film showed no case of kirschner wire displacement nor of kirschner wire-related pain. The internal fixture needs to be removed from 10 patients due to steel plates and the like, and 40 Kirschner wires of the patients are smoothly removed without any complication. By bending the tail end of the Kirschner wire by 180 degrees, the displacement of the Kirschner wire and the irritation of soft tissues caused by the protrusion of the tail end rarely occur. Therefore, after the method is applied, the fixation loss of the kirschner wire for fixing the fracture rarely occurs, and the requirement of early movement after the operation can be met. The operation method comprises the following steps: the method is mainly suitable for the condition that the Kirschner wire needs to be embedded into bone, such as tension bands, permanent fracture fixation and the like. In addition, when the technology is used for temporarily fixing the Kirschner wire, the pulling-out is more convenient. The technology can skillfully bend the Kirschner wire by 180 degrees through 7 steps, usually 0.045 inch, 0.054 inch and 0.062 inch Kirschner wires are applied, and the key step 1 of the operation is that the Kirschner wire is withdrawn from the final depth by 5mm in the first step, so that the Kirschner wire can be prevented from being too deep, penetrating through the opposite cortex and knocking into the bone after the tail end of the Kirschner wire is bent. The needle holder is used for tightly clinging to the bone surface to clamp the kirschner wire, and then the No. 7 stainless steel aspirator head is used for sheathing the whole kirschner wire. The needle holder clamps the Kirschner wire, and the Kirschner wire is bent by the suction head in the direction vertical to the needle holder, so that the Kirschner wire forms an angle of 90 degrees. The aspirator head and the needle holder are slid to the tail side of the Kirschner wire, the needle holder is clamped at a position 5mm away from the bent position, and the Kirschner wire is bent in the opposite direction by the aspirator head and is folded back by about 120 degrees. The needle holder clamps the position of the primary clamping and clings to the bone surface. The suction head is inserted into the second bend, the second bend is used as a lever, and the bending angle is increased continuously in the direction of the first bend, so that the first bend is changed into 170 degrees. It is worth noting that the second bending is indispensable, since the blocking of the bone does not allow reaching a bending of 170 ° directly by the first bending. The jaws cut the k-wire at a distance of about 5mm from the first bend point. The curvature of the Kirschner wire is increased by using a needle holder to form an angle of 180 degrees. And knocking the tail end of the bent Kirschner wire into the bone. Thus, after the tail end of the sharp kirschner wire is embedded into the bone, the smooth hook-shaped part is flush with the bone surface.

The operation method has more operation steps and longer time consumption when the tail end of the Kirschner wire is bent, and the strength of the tail end of the Kirschner wire is reduced due to mechanical fatigue because the Kirschner wire is repeatedly bent for many times; in addition, the bending step is carried out after most of the Kirschner wires are inserted into the sclerotin, and the tail ends of the Kirschner wires lack necessary support when the common nipper pliers are used for bending, so that greater pressure is applied to the sclerotin, and the surrounding sclerotin is easy to crack. Furthermore, the application range is small because the Kirschner wire with the diameter of less than 1.5mm is generally applied.

The application number is CN 201510248436.7A Kirschner wire bending and scraping device, which discloses a clamping piece comprising a clamping Kirschner wire, wherein the clamping piece comprises two open-close components for clamping the Kirschner wire, the two open-close components of the clamping piece are used as rotating shafts, the rotating shafts can be cylinders or cones, a contact head for applying bending force to the Kirschner wire can rotate around the clamping piece, namely the contact head rotates around the rotating shafts, the contact head presses the Kirschner wire to be bent around a forming core block, after the Kirschner wire is bent, if the length of the bent Kirschner wire is proper, the bending device is taken down, if the length of the bent Kirschner wire is long, a scraping cutting edge for scraping the Kirschner wire on the contact head and the side of the forming core block at one side end part of the clamping piece form a scraping notch, the scraping cutting edge continues to rotate along the scraping cutting notch in the rotating process until the scraping cutting edge contacts with the forming core block (the distance can also be, so that the kirschner wire is broken), the clamped kirschner wire is cut off by scraping. Because the two opening and closing components of the clamping piece are used as the rotating shafts, the opening degree of the clamping piece is small, the clamping of the kirschner wire is inconvenient, and the rotating shafts are too long, so that the force arm for transferring force to the contact is too long, and the clamping piece is inconvenient to use.

Disclosure of Invention

In order to solve the technical problems that the opening degree of a clamping piece of the existing kirschner wire bending, scraping and cutting operation forceps is small and the force arm of a contact to transfer force is too long, the invention provides kirschner wire operation forceps, which comprise two cheek rotating parts which rotate relatively, wherein one forceps head extends out of each cheek rotating part from one end of each cheek rotating part, and the two forceps heads form an opening forceps mouth; each cheek rotating part extends out of a handle towards the other end, and the tong heads are two clamping heads provided with mutually matched transverse groove clamping surfaces.

According to the Kirschner wire operating forceps, one of the two cheek rotating parts or one of the two clamping tooth heads is provided with the pressing rotating shaft, the pressing rotating shaft is sleeved with the pressing head, the pressing handle is connected onto the pressing head, the pressing head can press the clamped Kirschner wire into a hook shape, and the Kirschner wire bending forceps are formed at the moment.

According to the kirschner wire forceps, the pressing rotating shaft is arranged on the periphery of one clamping head.

According to the kirschner wire forceps, the pressing rotating shaft is a part of the clamping head.

According to the kirschner wire surgical forceps, the pressing rotating shaft is coaxial with the clamping opening.

The Kirschner wire forceps are characterized in that the two cheek rotating parts are of hinged structures.

The Kirschner wire operating forceps are characterized in that each cheek rotating part comprises a rotating shaft and a rotating shaft sleeve extending out of the outer side of the periphery of the rotating shaft, the rotating shafts of the two cheek rotating parts are arranged in the rotating shaft sleeves of the other side, so that the rotating shafts are arranged in the two rotating shaft sleeves of the two cheek rotating parts, the rotating shafts extend out of the clamping heads, and at the moment, the infinite labor-saving clamping forceps are formed.

According to the kirschner wire forceps, the rotating shaft extends out of the pressing rotating shaft. At the moment, labor-saving Kirschner wire bending forceps are formed.

The Kirschner wire operating forceps comprise rotating shafts and rotating shaft sleeves extending out of the outer sides of the peripheries of the rotating shafts, the rotating shafts of the two cheek rotating parts are arranged in the rotating shaft sleeves of the other side, so that the rotating shafts are arranged in the two rotating shaft sleeves of the two cheek rotating parts, the rotating shafts are provided with cutting edges to replace clamping heads, and at the moment, the infinite labor-saving shearing forceps are formed.

According to the kirschner wire forceps, the cutting edge on one side of the cutting edge is L-shaped.

The Kirschner wire surgical forceps are characterized in that the two cheek rotating parts rotate relatively, one cheek rotating part is a shaft sleeve which axially extends out of the periphery of a base, the other cheek rotating part is a rotating shaft matched with the shaft sleeve, and each pincer head is a cut-off through hole which is arranged on the base and the rotating shaft in parallel to the axis and replaces each cheek rotating part to respectively extend out of one end of the pincer head.

According to the kirschner wire surgical forceps, the number of the cut through holes is at least two, and the diameters of the cut through holes are different.

The invention has simple structure, solves the problems of clamping, bending and cutting of the Kirschner wire in the department of orthopaedics, and the specific effect is described in detail in the embodiment.

Drawings

FIG. 1 is a schematic view of a first forceps configuration;

FIG. 2 is an enlarged schematic structural view of a head portion of a first Kirschner wire surgical forceps;

FIG. 3 is a schematic diagram of the exploded structure of the first K-wire forceps;

FIG. 4 is an enlarged schematic view of the exploded head of the first type of K-wire forceps;

FIG. 5 is an enlarged view of the exploded head of the first K-wire forceps from another angle;

FIG. 6 is a schematic structural view of a second type of K-wire forceps;

FIG. 7 is an enlarged schematic structural view of a head portion of a second kirschner wire surgical forceps;

FIG. 8 is a schematic view of a second exploded structure of the K-wire forceps;

FIG. 9 is an enlarged schematic view of the exploded head of the second K-wire forceps;

FIG. 10 is an enlarged view of the exploded head of the second K-wire forceps from another angle;

FIG. 11 is a schematic view of a third forceps configuration;

FIG. 12 is an enlarged view of the head of the third type of K-wire surgical forceps;

FIG. 13 is a schematic view of an exploded view of a third K-wire forceps;

FIG. 14 is a schematic view of a fourth arrangement of K-wire forceps;

FIG. 15 is an enlarged schematic view of the exploded head of a fourth type of K-wire forceps;

FIG. 16 is an enlarged view of the exploded head of the fourth K-wire forceps from another angle;

FIG. 17 is a schematic view of a first shearing pliers configuration;

fig. 18 is a schematic illustration of a first shear clamp explosion configuration;

FIG. 19 is a schematic view of a second shearing pliers configuration;

FIG. 20 is an enlarged view of the head of the second shearing pliers;

FIG. 21 is a schematic view of a third shearing pliers configuration;

fig. 22 is a schematic diagram of the explosive structure of the third type of shear clamp.

Detailed Description

A Kirschner wire surgical clamp comprises two cheek rotating parts which rotate relatively, as shown in figures 1-11, a cheek rotating part I101 and a cheek rotating part II 102, wherein the cheek rotating part I101 and the cheek rotating part II 102 respectively extend out of a clamp head I201 and a clamp head II 202 towards one ends, and the clamp head I201 and the clamp head II 202 form an open-close clamp mouth 260; the cheek part rotating part I101 and the cheek part rotating part II 102 respectively extend out of a handle I301 and a handle II 302 towards the other end, the forceps heads are a clamping head I210 and a clamping head II 220 which are provided with mutually matched transverse groove clamping surfaces, the drawing comprises a pressing part, the pressing part is deleted to be a clamping forceps, and the clamping forceps are labor-saving because the clamping forceps clamping heads are directly extended out of the cheek part rotating part and the two clamping heads of the transverse groove clamping surfaces are close to a rotating shaft;

according to the Kirschner wire forceps, the pressing rotating shaft 230 is arranged on one of the cheek rotating part I101 and the cheek rotating part II 102 or one of the tooth clamping head I210 and the tooth clamping head II 220, the cheek rotating part and the tooth clamping head are of an integral structure in the drawing, so that the cheek rotating part and the tooth clamping head are not easy to clearly distinguish, and the pressing rotating shaft 230 is virtually arranged on the cheek rotating part or the tooth clamping head, so that the pressing action can be realized or basically realized without being influenced by the opening and closing actions of the two clamping heads, the opening degrees of the two clamping heads are larger, the pressing shaft 230 is sleeved with the pressing head 231 through the pressing shaft sleeve 232, the pressing head 231 is connected with the pressing handle 240, the force arm between the pressing head and the shaft sleeve is short, the torque or the torque between the pressing head and the shaft sleeve is small, the stress is simple, and the operation is convenient; the indenter 231 can press the gripped k-wire into a hook shape. At this time, the kirschner wire bending forceps are formed.

The pressing rotating shaft 230 is arranged on the periphery of the clamping head I210 and the clamping head II 220. The cheek rotating part extends out of the pressing rotating shaft 230, and a pressing rotating shaft 230 parallel to the clamping head can be arranged, and the pressing rotating shaft 230 and the clamping head are fixed by a connecting piece; the structure enables the pressure head to be arranged on the pressing handle, and the structure is simple;

the pressing rotary shaft 230 is a part of the holding head I210 and the holding head II 220. At the moment, the pressing rotating shaft avoids the clamping part, so that torque is generated, the operation is not influenced too much due to the short arm of force, the pressing rotating shaft is close to the rotating shafts of the two clamping heads, so that the clamping is difficult, but the two clamping heads can be close to the rotating shafts, and the same effect can be achieved by extending one clamping head out of the pressing rotating shaft;

as shown in fig. 14-16, the pressing shaft 230 is coaxial with the clamping opening 260, which is the clamping opening 260.

Referring to fig. 1, the cheek rotating part i 101 and the cheek rotating part ii 102 are hinged 410, referring to fig. 1 to 4 and fig. 11 to 16, the cheek rotating part i 101 and the cheek rotating part ii 102 are hinged by a hinge shaft 103.

As shown in fig. 6 to 10, each cheek rotating portion includes a

rotating shaft

101, 102 and a

rotating sleeve

104, 105 extending outside the periphery of the rotating shaft, the rotating shafts of the two cheek rotating portions are placed in the rotating sleeves of the other cheek rotating portion, so that the

rotating shafts

101 or 102 are arranged in the two rotating sleeves of the two cheek rotating portions, and the rotating shafts extend out of the clamping heads 210, 220. As the clamping heads 210 and 220 are arranged on the rotating shaft, the clamping heads 210 and 220 can approach the rotating shaft infinitely, and as the pressing part is deleted, the infinite labor-saving clamping pliers are formed.

The rotating shaft 102 extends out of the pressing rotating shaft 230. Thus, the increase of the pressing part in the drawing forms the kirschner wire bending forceps for labor-saving clamping.

When the clamping device is used, the clamping head clamps the Kirschner wire, the pressing head presses the Kirschner wire, and the pressing handle is rotated to bend the Kirschner wire into a hook shape.

As shown in fig. 17 to 20, each cheek rotating portion includes a rotating shaft 421 and a rotating sleeve 422 extending outside the periphery of the rotating shaft, the rotating shafts of the two cheek rotating portions are placed in the rotating sleeves of the other cheek rotating portion, so that rotating shaft structures 430 are arranged in the two rotating sleeves of the two cheek rotating portions, and the rotating shafts are provided with blades 450 instead of clamping heads. At the moment, the unlimited labor-saving shearing pliers are formed without clamping heads.

The blade 451 on the blade 450 side has an L-shape. Because the clamping heads 210 and 220 can approach the rotating shaft infinitely, the openings of the two cutting edges 450 are large, when the clamping device is used, the two cutting edges 450 are not easy to clamp a kirschner wire, the kirschner wire is not easy to cut off, the L-shaped cutting edge 451 is added, namely the limiting stop of the kirschner wire is added, the kirschner wire is prevented from being separated, the handle exerts force, the two cutting edges 450 cut off the kirschner wire, and the L-shaped cutting edge 451 can be free of cutting edges.

As shown in fig. 21-22, the two cheek rotating parts rotate relatively, one cheek rotating part is a shaft sleeve 61 extending axially from the periphery of the base 60, the other cheek rotating part is a rotating shaft 62 matched with the shaft sleeve, and the tong heads are truncated through holes 63 arranged on the base and the rotating shaft in parallel to the axis instead of each cheek rotating part, and one tong head extends towards one end respectively.

In the kirschner wire forceps, the number of the cut through holes 63 is at least two, and the diameters of the cut through holes are different.

The kirschner wires with different diameters are inserted into the corresponding cut through holes 63, the

handles

101 and 102 are rotated, the rotating shaft 62 rotates relative to the base 60, and the cut through holes 63 are close to the rotating shaft, so that labor is saved during cutting.

Claims

1. A Kirschner wire surgical forceps comprises two cheek rotating parts which rotate relatively, wherein each cheek rotating part extends out of one end of each forceps head, and the two forceps heads form an open forceps mouth; every cheek portion rotating part stretches out a handle, its characterized in that respectively to the other end: the binding clip is two holding heads provided with mutually matched transverse groove holding surfaces.

2. The kirschner wire forceps of claim 1, wherein: one of two cheek portions rotating part or one of two double-layered tooth heads sets up presses the pivot, presses the epaxial cover of pressure and establishes the pressure head, connects on the pressure head and presses the handle, and the pressure head can be pressed the kirschner wire of centre gripping for hook-like, constitutes kirschner wire pincers of bending this moment.

3. The kirschner wire forceps of claim 2, wherein: the pressing rotating shaft is arranged on the periphery of one clamping head.

4. The kirschner wire forceps of claim 2, wherein: the pressing rotating shaft is a part of the clamping head.

5. The kirschner wire forceps of claim 4, wherein: the pressing rotating shaft is coaxial with the clamping opening.

6. The kirschner wire forceps of any one of claims 1-5, further comprising: the two cheek rotating parts are hinged structures.

7. The kirschner wire forceps of any one of claims 1-5, further comprising: every cheek rotating part includes the rotation axis and the rotation axis peripheral outside rotation axis sleeve that stretches out, and the rotation axis of two cheek rotating parts is arranged in the rotation axis sleeve of other side for establish the rotation axis each other in two rotation axis sleeves of two cheek rotating parts, the holding head is stretched out to the rotation axis, constitutes unlimited laborsaving centre gripping pincers this moment.

8. The kirschner wire forceps of claim 7, wherein: the rotating shaft extends out of the pressing rotating shaft, and at the moment, the labor-saving Kirschner wire bending forceps are formed.

9. The kirschner wire forceps of claim 1, wherein: every cheek rotating part includes the rotation axis and the rotation axis peripheral outside rotation axis sleeve that stretches out, and the rotation axis of two cheek rotating parts is arranged in the rotation axis cover of other side for establish the rotation axis each other in two rotation axis covers of two cheek rotating parts, the rotation axis sets up the blade and replaces the clamping head, constitutes unlimited laborsaving shearing pincers this moment.

10. The k-wire forceps of claim 9, wherein: the cutting edge on one side of the cutting edge is L-shaped.

11. The kirschner wire forceps of claim 1, wherein: the vice head is a vice head which is formed by cutting through holes arranged on the base and the rotating shaft in parallel to the axis and replaces each cheek rotating part to respectively extend out of one end.

12. The k-wire forceps of claim 11, wherein: the number of the cut through holes is at least two, and the diameters of the cut through holes are different.