CN216854819U

CN216854819U - Kirschner wire fixer

Info

Publication number: CN216854819U
Application number: CN202123382121.1U
Authority: CN
Inventors: 戴建辉; 张军; 陈旭; 李星; 余正希; 吕建华
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-07-01
Anticipated expiration: 2031-12-29

Abstract

The utility model relates to a kirschner wire fixer, comprising: first fixed part, second fixed part and the ke shi needle more than two, first fixed part sets up with the second fixed part is relative, and can dismantle between first fixed part and the second fixed part and be connected, is provided with ke shi needle fixed knot between first fixed part and the second fixed part and constructs, and the ke shi needle sets up in ke shi needle fixed knot constructs, and ke shi needle fixed knot construct looks adaptation, be provided with connecting portion on first fixed part or the second fixed part, connecting portion are used for connecting treat the fixture. Fixing the kirschner wire more than two through kirschner wire fixed knot structure, to treating the fixture through this kirschner wire fixer is fixed, the stability of treating the fixture has been strengthened to the kirschner wire more than two, can effectively improve the security of operation, and detachable construction person of facilitating the use dismantles the kirschner wire from kirschner wire fixed knot structure, has improved the use flexibility of this kirschner wire fixer.

Description

Kirschner wire fixing device

Technical Field

The utility model relates to the technical field of minimally invasive orthopedic surgery, in particular to a Kirschner wire fixator for minimally invasive orthopedic surgery.

Background

With the day by day, surgical techniques and surgical auxiliary instruments are widely used in clinical practice. The minimally invasive surgery advocates a small incision, reduces the peeling of soft tissues, can greatly reduce the bleeding and the wound of the traditional surgery and accelerate the postoperative rehabilitation.

Orthopedic surgery is also increasingly demanding the therapeutic principles of small incisions, less exfoliation, and early recovery.

The Kirschner wire is the most commonly used fixing material in minimally invasive orthopedic surgery, and the materials of the Kirschner wire are two, namely stainless steel and titanium alloy. The Kirschner wire has wide application in orthopedic surgery, and has the advantages of small wound and low price. When the Kirschner wire is used as an external fixing support, the Kirschner wire is usually required to be fixed on a fixer and then connected with a to-be-fixed object, but the conventional Kirschner wire fixer has low adjustment flexibility and is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

Therefore, a kirschner wire holder is needed to solve the problems of low flexibility and inconvenient use of the existing kirschner wire holder.

To achieve the above object, the inventors provide a k-wire holder comprising: a first fixing part, a second fixing part and more than two Kirschner wires,

the first fixing part and the second fixing part are oppositely arranged and detachably connected, a Kirschner wire fixing structure is arranged between the first fixing part and the second fixing part, the Kirschner wire is arranged in the Kirschner wire fixing structure and is matched with the Kirschner wire fixing structure,

the first fixing part or the second fixing part is provided with a connecting part, and the connecting part is used for connecting a to-be-fixed object.

Furthermore, the side of the first fixing part facing the second fixing part and the side of the second fixing part facing the first fixing part are provided with fixing grooves in an array manner, the fixing grooves of the first fixing part and the second fixing part are arranged oppositely, and the Kirschner wire is arranged between the two fixing grooves.

Further, the first fixing part is provided with the fixed slot towards the side array of second fixing part, the side of second fixing part towards first fixing part is provided with rough district, the ke shi needle sets up between first fixed slot and rough district.

Further, the section of the fixing groove is of a semicircular structure with the diameter of 1-3 mm.

Furthermore, the side of the first fixing part facing the second fixing part and the side of the second fixing part facing the first fixing part are both provided with rough areas, and the kirschner wire is arranged between the two rough areas.

Further, a rubber pad, a latex pad or a silica gel pad is fixed on the side surface of the first fixing part facing the second fixing part, or the side surface of the second fixing part facing the first fixing part.

Furthermore, two ends of the first fixing part are respectively provided with a first fixing hole, two ends of the second fixing part are also provided with a second fixing hole, the first fixing hole and the second fixing hole are correspondingly arranged,

the Kirschner wire fixer also comprises a connecting piece, wherein the connecting piece is arranged between the first fixing hole and the second fixing hole in a penetrating way and is used for connecting the first fixing part and the second fixing part.

Further, the connecting piece includes the bolt and is fixed in the spacing piece on the bolt post, be provided with the spacing groove in the first fixed orifices, spacing groove and spacing piece looks adaptation for prevent that the connecting piece breaks away from in first fixed part.

Further, the second fixing hole is a threaded blind hole.

Furthermore, one end of the first fixing portion is hinged to one end of the second fixing portion through a hinge, and the other end of the first fixing portion is connected with the other end of the second fixing portion through a clamping piece.

Different from the prior art, the technical scheme has the following advantages: this kirschner wire fixer forms the kirschner wire fixed knot who is located between the two through first fixed part and second fixed part after setting up relatively and constructs, it fixes the kirschner wire more than two through kirschner wire fixed knot structure, to treating the fixture through this kirschner wire fixer is fixed, the kirschner wire more than two has strengthened the stability of treating the fixture, can effectively improve the security of operation, ensure that the operation goes on smoothly, and detachable construction person of facilitating the use between first fixed part and the second fixed part dismantles the kirschner wire from kirschner wire fixed knot structure, the use flexibility of this kirschner wire fixer has been improved.

Drawings

Fig. 1 is a schematic perspective view of a kirschner wire holder according to the present embodiment;

fig. 2 is a schematic perspective view of a k-wire holder according to the present embodiment;

fig. 3 is a schematic perspective view of the kirschner wire holder according to the embodiment in a state where the kirschner wire is not mounted;

FIG. 4 is a top view of the K-wire holder of this embodiment shown in the state in which the K-wire is not mounted;

FIG. 5 is a schematic structural view of the Kirschner wire fixture according to the embodiment, in which the first fixing portion and the second fixing portion are provided with rough regions;

FIG. 6 is a side view of a K-wire holder of this embodiment secured using bolts;

FIG. 7 is a side view of the K-wire holder of this embodiment secured using bolts and nuts;

FIG. 8 is a side view of the Kirschner wire holder of this embodiment being secured using a bolt and a nut, the nut being secured to the end of a stud of the bolt;

fig. 9 is a schematic structural view illustrating a connecting member of the k-wire holder of the present embodiment disposed in the middle of a first fixing portion and a second fixing portion;

fig. 10 is a schematic structural view of a first fixing portion of a kirschner wire holder according to the embodiment;

FIG. 11 is a schematic structural view of a second fixing portion of the Kirschner wire holder of the present embodiment;

fig. 12 is a schematic structural view of a k-wire holder provided with four k-wires according to the present embodiment;

fig. 13 is a schematic structural view illustrating the first fixing portion and the second fixing portion of the k-wire fixer of the present embodiment being hinged to each other;

fig. 14 is a schematic structural view of the kirschner wire holder provided with the hinge and the connecting member according to the embodiment.

Description of reference numerals:

1. a first fixed part;

11. a first fixing hole;

111. a limiting groove;

2. a second fixed part;

21. a second fixing hole;

3. a Kirschner wire;

4. a Kirschner wire fixing structure;

41. fixing grooves;

42. a roughened region;

5. a connecting portion;

6. a connecting member;

61. a limiting sheet;

62. a hinge member.

Detailed Description

To explain in detail the possible application scenarios, technical principles, and practical embodiments of the present application, and to achieve the objectives and effects thereof, the following detailed description is given with reference to the accompanying drawings. The embodiments described herein are merely for more clearly illustrating the technical solutions of the present application, and therefore, the embodiments are only used as examples, and the scope of the present application is not limited thereby.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or related to other embodiments specifically defined. In principle, in the present application, the technical features mentioned in the embodiments can be combined in any manner to form a corresponding implementable technical solution as long as there is no technical contradiction or conflict.

Unless defined otherwise, technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the use of relational terms herein is intended only to describe particular embodiments and is not intended to limit the present application.

In the description of the present application, the term "and/or" is a expression for describing a logical relationship between objects, indicating that three relationships may exist, for example, a and/or B, indicating that: there are three cases of A, B, and both A and B. In addition, the character "/" herein generally indicates that the former and latter associated objects are in a logical relationship of "or".

In this application, terms such as "first" and "second" are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

Without further limitation, in this application, the use of "including," "comprising," "having," or other similar expressions in phrases and expressions of "including," "comprising," or "having," is intended to cover a non-exclusive inclusion, and such expressions do not exclude the presence of additional elements in a process, method, or article that includes the recited elements, such that a process, method, or article that includes a list of elements may include not only those elements but also other elements not expressly listed or inherent to such process, method, or article.

As is understood in the examination of the guidelines, the terms "greater than", "less than", "more than" and the like in this application are to be understood as excluding the number; the expressions "above", "below", "within" and the like are understood to include the present numbers. In addition, in the description of the embodiments of the present application, "a plurality" means two or more (including two), and expressions related to "a plurality" similar thereto are also understood, for example, "a plurality of groups", "a plurality of times", and the like, unless specifically defined otherwise.

In the description of the embodiments of the present application, spatially relative expressions such as "central," "longitudinal," "lateral," "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used, and the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the specific embodiments or drawings and are only for convenience of describing the specific embodiments of the present application or for the convenience of the reader, and do not indicate or imply that the device or component in question must have a specific position, a specific orientation, or be constructed or operated in a specific orientation and therefore should not be construed as limiting the embodiments of the present application.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," "secured," and "disposed" used in the description of the embodiments of the present application are to be construed broadly. For example, the connection can be a fixed connection, a detachable connection, or an integrated arrangement; it can be a mechanical connection, an electrical connection, or a communication connection; they may be directly connected or indirectly connected through an intermediate; which may be communication within two elements or an interaction of two elements. Specific meanings of the above terms in the embodiments of the present application can be understood by those skilled in the art to which the present application pertains in accordance with specific situations.

With the rise and fall of surgical techniques and surgical auxiliary instruments, minimally invasive surgery is widely used clinically. The minimally invasive surgery advocates a small incision, reduces the peeling of soft tissues, can greatly reduce the bleeding and the wound of the traditional surgery and accelerate the postoperative rehabilitation.

The kirschner wire is the most common fixing material in orthopedic minimally invasive surgery, and the kirschner wire is made of two materials, namely stainless steel and titanium alloy. The Kirschner wire has wide application in orthopedic surgery, and has the advantages of small wound and low price. When the Kirschner wire is used as an external fixing support, the Kirschner wire is usually required to be fixed on a fixer and then connected with a to-be-fixed object, but the conventional Kirschner wire fixer has low adjustment flexibility and is inconvenient to use.

Referring to fig. 1 to 14, a kirschner wire 3 fixer of the present embodiment includes: a first fixing part 1, a second fixing part 2 and more than two Kirschner wires 3,

the first fixing part 1 and the second fixing part 2 are oppositely arranged, the first fixing part 1 and the second fixing part 2 are detachably connected, a Kirschner wire fixing structure 4 is arranged between the first fixing part 1 and the second fixing part 2, the Kirschner wire 3 is arranged in the Kirschner wire fixing structure 4, and the Kirschner wire 3 is matched with the Kirschner wire fixing structure 4,

the first fixing part 1 or the second fixing part 2 is provided with a connecting part 5, and the connecting part 5 is used for connecting a to-be-fixed object.

Kirschner wire fixing structure 4 can hold Kirschner wire 3 more than two, Kirschner wire fixing structure 4 and Kirschner wire 3 looks adaptation, and Kirschner wire 3 is fixed in Kirschner wire fixing structure 4, and first fixed part 1 is connected the back with second fixed part 2, and Kirschner wire 3 can not be fixed in Kirschner wire fixing structure 4, and Kirschner wire 3 can not break away from between first fixed part 1 and the second fixed part 2. The tip of the k-wire 3 extends outward from between the first fixing portion 1 and the second fixing portion 2.

The needle heads of the k-wires 3 are oriented the same.

The first fixing portion 1 and the second fixing portion 2 are made of Polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), Polystyrene (PS) or acrylonitrile-butadiene-styrene copolymer (ABS), and the first fixing portion 1 and the second fixing portion 2 may be solid block structures or hollow block structures. The shape of the first fixing portion 1 and the second fixing portion 2 is a rectangular parallelepiped, a semi-cylinder, a hemisphere, or the like, and the shape and size of the first fixing portion 1 and the second fixing portion 2 may be similar.

The detachable connection is a simple and fast connection mode, generally only one insertion action or knob action is needed to be completed, the positioning requirement before the assembly of the first fixing part 1 and the second fixing part 2 is low, and the detachable connection is convenient and fast. After the first fixing part 1 and the second fixing part 2 are disassembled, the first fixing part 1 and the second fixing part 2 can be completely separated or incompletely separated. The effect of incomplete separation after the first fixing part 1 and the second fixing part 2 are disassembled is that the first fixing part 1, the second fixing part 2 or the connecting piece 6 between the first fixing part 1 and the second fixing part 2 can be prevented from being lost, and the first fixing part 1 and the second fixing part 2 can be conveniently assembled and used next time.

One end of the connecting part 5 is connected to the first fixing part 1, or connected to the second fixing part 2, or connected to the first fixing part 1 and the second fixing part 2, and the other end of the connecting part 5 extends outwards. The connecting portion 5 may be a cylinder with an anti-slip structure, a fixing clip, a groove-shaped structure, or any other structure that can be used to fix an object to be fixed.

The object to be fixed can be a tracer of an orthopedic surgery robot or other surgical articles needing to be fixed on the body of a patient.

This 3 fixer of ke shi needle forms the ke shi needle fixed knot who is located between the two through first fixed part 1 and the relative back that sets up of second fixed part 2 and constructs 4, it fixes to the ke shi needle 3 more than two through the ke shi needle fixed knot construct 4, to treating the fixture through the fixing of this 3 fixer of ke shi needle, the stability of treating the fixture has been strengthened to the ke shi needle 3 more than two, can effectively improve the security of operation, ensure that the operation goes on smoothly, and detachable construction convenience of customers between first fixed part 1 and the second fixed part 2 dismantles the ke shi needle 3 from ke shi needle fixed knot constructs 4, the use flexibility of this 3 fixer of ke shi needle has been improved.

When the Kirschner wire fixator is used, after the Kirschner wire is fixed between the first fixing part and the second fixing part, the needle heads of the Kirschner wire face to the same direction, a user inserts the needle heads of the Kirschner wire into the spinous processes of a patient in a manner of aligning the needle heads of the Kirschner wire with the spinous processes of the patient, two Kirschner wires can be respectively inserted into the same spinous processes, or the distance between the two Kirschner wires is adjusted and then inserted into two adjacent or even non-adjacent spinous processes, so that the Kirschner wire fixator is fixed on the body of the patient, and then a to-be-fixed object is fixed on the Kirschner wire fixator. As shown in fig. 12, in the case of an elderly patient, because of osteoporosis, there still exists an unstable structure problem in the same spinous process when only one kirschner wire is used for fixation, so that two kirschner wires can be arranged on the same spinous process, two kirschner wires can be arranged on the adjacent spinous processes, and even a plurality of kirschner wires can be arranged.

In some preferred embodiments, the fixing grooves 41 are arranged in an array on both the side of the first fixing part 1 facing the second fixing part 2 and the side of the second fixing part 2 facing the first fixing part 1, the fixing grooves 41 of the first fixing part 1 are arranged opposite to the fixing grooves 41 of the second fixing part 2, and the kirschner wire 3 is arranged between the two fixing grooves 41.

The side surface of the first fixing part 1 facing the second fixing part 2 means that the first fixing part 1 faces the end surface of the second fixing part 2 or the end surface of the first fixing part 1 contacting the second fixing part 2 after the first fixing part 1 and the second fixing part 2 are oppositely arranged and connected; the side surface of the second fixing portion 2 facing the first fixing portion 1 means that the second fixing portion 2 faces the end surface of the first fixing portion 1 or the end surface of the second fixing portion 2 contacting the first fixing portion 1 after the first fixing portion 1 and the second fixing portion 2 are oppositely arranged and connected.

The arrangement of the array means that the fixing grooves 41 are arranged at equal intervals along the same direction, and the arrangement direction of the fixing grooves 41 on the first fixing part 1 is the same as the arrangement direction of the fixing grooves 41 on the second fixing part 2. The number of the fixing grooves 41 in the first fixing portion 1 is two or more, and the number of the fixing grooves 41 in the second fixing portion 2 is also two or more. Preferably, the number of the fixing grooves 41 of the first fixing unit 1 is the same as the number of the fixing grooves 41 of the second fixing unit 2, and the number of the k-wire fixing structures 4 formed by the fixing grooves 41 of the first fixing unit 1 and the second fixing unit 2 is the same as the number of the k-wires 3. Specifically, the fixing grooves 41 of the first fixing section 1 are arrayed along the longitudinal direction of the first fixing section 41, the fixing grooves 41 extend in the direction perpendicular to the array direction of the first fixing section 1, the fixing grooves 41 of the second fixing section 2 are arrayed along the longitudinal direction of the second fixing section 41, and the fixing grooves 41 extend in the direction perpendicular to the array direction of the second fixing section 2.

In certain more preferred embodiments, the fixing groove 41 has a semicircular structure with a diameter of 1-3mm in section. After the first fixing portion 1 and the second fixing portion 2 are oppositely arranged and connected, the fixing groove 41 on the first fixing portion 1 and the fixing groove 41 on the second fixing portion 2 form a circular structure with a diameter of 1-3mm, that is, the kirschner wire fixing structure 4 is a circular structure with a diameter of 1-3mm, the kirschner wire 3 is a circular structure with a cross-sectional diameter of 1-3mm, and the kirschner wire 3 is matched with the kirschner wire fixing structure 4.

In some more preferred embodiments, a rubber pad or a latex pad is fixed on the side surface of the first fixing part 1 facing the second fixing part 2, or the side surface of the second fixing part 2 facing the first fixing part 1. That is, a rubber pad or a latex pad is disposed on the side of the first fixing portion 1 facing the second fixing portion 2, or a rubber pad or a latex pad is disposed on the side of the second fixing portion 2 facing the first fixing portion 1, or both the side of the first fixing portion 1 facing the second fixing portion 2 and the side of the second fixing portion 2 facing the first fixing portion 1 are disposed with rubber pads or latex pads. Thereby enhancing the friction force between the k-wire 3 and the first fixing part 1 or the second fixing part 2 and preventing the k-wire 3 from being separated from the k-wire fixing structure 4.

In some preferred embodiments, the side of the first fixing part 1 facing the second fixing part 2 is provided with a fixing groove 41 in an array, the side of the second fixing part 2 facing the first fixing part 1 is provided with a rough area 42, and the kirschner wire 3 is arranged between the first fixing groove 41 and the rough area 42.

The array arrangement means that the fixing grooves 41 are arranged at equal intervals in the same direction. The number of the fixing grooves 41 in the first fixing portion 1 is two or more. The number of the kirschner wire fixing structures 4 formed by the fixing groove 41 of the first fixing part 1 and the roughened region 42 of the second fixing part 2 is the same as the number of the kirschner wires 3. Specifically, the fixing grooves 41 of the first fixing section 1 are arrayed along the longitudinal direction of the first fixing grooves 41, and the fixing grooves 41 extend in the direction perpendicular to the array direction of the first fixing section 1.

The rough area 42 on the second fixing portion 2 means that the friction coefficient of the material at the area is relatively large, and specifically, the rough area can be realized by arranging anti-skid particles on the end surface of the second fixing portion 2 facing the first fixing portion 1, or by arranging some anti-skid materials (such as silica gel material, rubber material or latex material) on the end surface of the second fixing portion 2 facing the first fixing portion 1.

Similarly, in other embodiments, the fixing grooves 41 are arranged on the side of the second fixing part 2 facing the first fixing part 1, the rough area 42 is arranged on the side of the first fixing part 1 facing the second fixing part 2, and the k-wire 3 is arranged between the fixing grooves 41 and the rough area 42.

In certain more preferred embodiments, the fixing groove 41 has a semicircular structure with a diameter of 1-3mm in section. After the first fixing part 1 and the second fixing part 2 are oppositely arranged and connected, the fixing groove 41 on the first fixing part 1 and the rough area 42 of the second fixing part 2 form a semicircular structure with the diameter of 1-3mm, namely, the Kirschner wire fixing structure 4 is a semicircular structure with the diameter of 1-3mm, and the Kirschner wire 3 is matched with the Kirschner wire fixing structure 4. Or the first fixing part 1 and the second fixing part 2 are not completely attached, a certain gap is formed between the first fixing part 1 and the second fixing part 2, so that the kirschner wire 3 with more specifications can be accommodated, the fixing groove 41 in the first fixing part 1 plays a strong limiting role in the kirschner wire 3, and the kirschner wire 3 is prevented from moving along the gap between the first fixing part 1 and the second fixing part 2.

In some more preferred embodiments, a rubber pad, a latex pad or a silicone pad is fixed on a side surface of the first fixing portion 1 facing the second fixing portion 2, or a side surface of the second fixing portion 2 facing the first fixing portion 1. That is, a rubber pad or a latex pad is disposed on the side of the first fixing portion 1 facing the second fixing portion 2, or a rubber pad or a latex pad is disposed on the side of the second fixing portion 2 facing the first fixing portion 1, or both the side of the first fixing portion 1 facing the second fixing portion 2 and the side of the second fixing portion 2 facing the first fixing portion 1 are disposed with rubber pads or latex pads. Thereby enhancing the friction force between the k-wire 3 and the first fixing part 1 or the second fixing part 2 and preventing the k-wire 3 from being separated from the k-wire fixing structure 4.

In some preferred embodiments, the side of the first fixing part 1 facing the second fixing part 2 and the side of the second fixing part 2 facing the first fixing part 1 are provided with rough areas 42, and the kirschner wire 3 is arranged between the two rough areas 42.

The rough area 42 on the first fixing portion 1 and the rough area 42 on the second fixing portion 2 mean that the friction coefficient of the material at the positions is relatively large, and specifically, the rough area can be realized by arranging anti-slip particles on the end surface of the first fixing portion 1 facing the second fixing portion 2 and the end surface of the second fixing portion 2 facing the first fixing portion 1, or by arranging some anti-slip materials (such as silica gel material, rubber material or latex material and the like) on the end surface of the first fixing portion 1 facing the second fixing portion 2 and the end surface of the second fixing portion 2 facing the first fixing portion 1.

In some preferred embodiments, the first fixing portion 1 is respectively opened with a first fixing hole 11 at both ends thereof, the second fixing portion 2 is also opened with a second fixing hole 21 at both ends thereof, the first fixing hole 11 and the second fixing hole 21 are correspondingly arranged,

the Kirschner wire 3 fixator further comprises a connecting piece 6, wherein the connecting piece 6 is arranged between the first fixing hole 11 and the second fixing hole 21 in a penetrating manner and is used for connecting the first fixing part 1 with the second fixing part 2.

The connecting piece 6 can be a bolt, a screw, a slotted stud, an inner hexagon stud or a bolt nut and the like.

As shown in fig. 6, in this embodiment, the first fixing portion 1 and the second fixing portion 2 are detachably connected by a connecting member 6, at least one through hole is formed in the first fixing hole 11 and the second fixing hole 21, the connecting member 6 passes through the first fixing hole 11 and then is fixed in the second fixing hole 21, or passes through the second fixing hole 21 and then is fixed in the first fixing hole 11, specifically, the first fixing hole 11 is a through hole, the second fixing hole 21 is a blind threaded hole, and a bolt passes through the first fixing hole 11 and then is screwed into the second fixing hole 21, although the first fixing hole 11 may also be a threaded hole; or the first fixing hole 11 and the second fixing hole 21 are through holes, the connecting member 6 passes through the first fixing hole 11 and the second fixing hole 21 at the same time, and specifically, the bolt passes through the first fixing hole 11 and the second fixing hole 21 and then is connected with the nut, so that the first fixing portion 1 and the second fixing portion 2 are fixed together. As shown in fig. 7, in another embodiment, the first fixing hole 11 is a through hole, the second fixing hole 21 is also a through hole, the kirschner wire is placed in the kirschner wire fixing structure between the first fixing portion and the second fixing portion, and the bolt is screwed with the nut after passing through the first fixing hole and the second fixing hole, so as to fix the first fixing portion and the second fixing portion.

In this embodiment, as shown in fig. 8, the first fixing portion 1 and the second fixing portion 2 are detachably connected by a connecting member 6. Specifically, the connecting piece is a bolt and a nut, the nut is fixed at the tail end of a stud of the bolt, the first fixing hole is a through hole, the second fixing hole is a threaded hole matched with the bolt, the Kirschner wire is placed into the Kirschner wire fixing structure between the first fixing part and the second fixing part, and after the bolt penetrates through the first fixing hole, the bolt is screwed with the internal thread of the second fixing hole to fix the first fixing part and the second fixing part. After the nut is screwed, a certain gap value is reserved between the second fixing part and the nut.

As shown in fig. 9, in some preferred embodiments, a first fixing hole is formed in the middle of the first fixing portion 1, a second fixing hole is also formed in the middle of the second fixing portion 2, the first fixing hole 11 is disposed corresponding to the second fixing hole 21,

In this embodiment, the first fixing portion 1 and the second fixing portion 2 are detachably connected by a connecting member 6. Specifically, the first fixing hole is a through hole, the second fixing hole is also a through hole, the Kirschner wire is placed in the Kirschner wire fixing structure between the first fixing part and the second fixing part, and the bolt is screwed with the nut after penetrating through the first fixing hole and the second fixing hole to fix the first fixing part and the second fixing part.

In some more preferred embodiments, as shown in fig. 7, the connecting member 6 includes a bolt and a limiting sheet 61 fixed on the bolt, a limiting groove 111 is disposed in the first fixing hole 11, and the limiting groove 111 is matched with the limiting sheet 61 for preventing the connecting member 6 from being separated from the first fixing portion 1.

The fixing device has the advantages that the bolt can be prevented from being separated from the first fixing hole 11, the phenomenon that parts of the Kirschner wire 3 fixing device are lost is avoided, and the next installation and use are facilitated.

The shape of the limiting sheet 61 can be circular, triangular, oval or square, and the edge of the limiting sheet 61 protrudes out of the surface of the bolt column. The limiting groove 111 is larger than the first fixing hole 11, and the limiting groove 111 may be circular, triangular, elliptical, or square. Bolt and 11 looks adaptations of first fixed orifices, spacing groove 111 and spacing piece 61 looks adaptations, during bolted connection first fixed orifices 11 and second fixed orifices 21, the bolt can remove along the central axis direction of first fixed orifices 11 in first fixed orifices 11, and spacing groove 111 is provided with certain length, satisfies spacing piece 61 along with the moving range of bolt in first fixed orifices 11.

In some preferred embodiments, as shown in fig. 13, one end of the first fixing portion 1 is hinged to one end of the second fixing portion 2 through a hinge 62, and the other end of the first fixing portion 1 is connected to the other end of the second fixing portion 2 through a fastener.

The first fixing part 1 is connected with the hinged end of the second fixing part 2, the first fixing part 1 and the second fixing part 2 can rotate around the hinged parts to realize separation or closing, when the first fixing part 1 is separated from the second fixing part 2, the Kirschner wire 3 can be put into or taken out of the Kirschner wire fixing structure 4 between the first fixing part 1 and the second fixing part 2, and when the first fixing part 1 is closed with the second fixing part 2, the Kirschner wire 3 is fixed in the Kirschner wire fixing structure 4.

The hinge 62 may be a hinge or hinge, for example.

In some preferred embodiments, one end of the first fixing portion 1 is provided with a first fixing hole, one end of the second fixing portion 2 is also provided with a second fixing hole, the first fixing hole 11 and the second fixing hole 21 are correspondingly arranged, the other end of the first fixing portion 1 is hinged with the other end of the second fixing portion 2 through a hinge 62,

the Kirschner wire 3 fixer also comprises a connecting piece 6, the connecting piece 6 is arranged between the first fixing hole 11 and the second fixing hole 21 in a penetrating way and is used for connecting the first fixing part 1 and the second fixing part 2,

In this embodiment, as shown in fig. 14, the first fixing portion 1 and the second fixing portion 2 are detachably connected by a connecting member 6. Specifically, the first fixing hole and the second fixing hole are through holes.

When the fixing device is used, the first fixing portion and the second fixing portion are opened around the hinged position of the first fixing portion and the second fixing portion, the first fixing portion and the second fixing portion are closed after the Kirschner wire is placed between the first fixing portion and the second fixing portion, the bolt penetrates through the first fixing hole and the second fixing hole and then is screwed with the nut, and the first fixing portion and the second fixing portion are fixed.

Finally, it should be noted that, although the above embodiments have been described in the text and drawings of the present application, the scope of the patent protection of the present application is not limited thereby. All technical solutions generated by replacing or modifying the equivalent structure or the equivalent flow described in the text and the drawings of the present application and directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields and the like based on the substantial idea of the present application are included in the scope of the patent protection of the present application.

Claims

1. A k-wire holder, comprising: a first fixing part, a second fixing part and more than two Kirschner wires,

2. The k-wire holder of claim 1, wherein: the side of the first fixing part facing the second fixing part and the side of the second fixing part facing the first fixing part are provided with fixing grooves in an array mode, the fixing grooves of the first fixing part and the fixing grooves of the second fixing part are arranged oppositely, and the Kirschner wire is arranged between the two fixing grooves.

3. The k-wire holder of claim 1, wherein: the first fixing part is provided with the fixed slot towards the side array of second fixing part, the side of second fixing part towards first fixing part is provided with coarse district, the ke shi needle sets up between first fixed slot and coarse district.

4. The k-wire holder according to claim 2 or 3, wherein: the section of the fixing groove is of a semicircular structure with the diameter of 1-3 mm.

5. The k-wire holder of claim 1, wherein: the side of the first fixing part facing the second fixing part and the side of the second fixing part facing the first fixing part are both provided with rough areas, and the Kirschner wire is arranged between the two rough areas.

6. The k-wire holder according to claim 2, 3 or 5, wherein: the side face of the first fixing part facing the second fixing part, or the side face of the second fixing part facing the first fixing part, is fixed with a rubber pad, a latex pad or a silica gel pad.

7. The k-wire holder according to claim 1, wherein: the two ends of the first fixing part are respectively provided with a first fixing hole, the two ends of the second fixing part are also provided with a second fixing hole, the first fixing hole and the second fixing hole are correspondingly arranged,

8. The k-wire holder of claim 7, wherein: the connecting piece comprises a bolt and a limiting piece fixed on the bolt column, a limiting groove is arranged in the first fixing hole, and the limiting groove is matched with the limiting piece and used for preventing the connecting piece from being separated from the first fixing part.

9. The k-wire holder according to claim 7 or 8, wherein: the second fixing hole is a threaded blind hole.

10. The k-wire holder of claim 1, wherein: one end of the first fixing part is hinged to one end of the second fixing part through a hinge, and the other end of the first fixing part is connected with the other end of the second fixing part through a clamping part.