WO2023125099A1

WO2023125099A1 - Kirschner wire fixator and use method therefor

Info

Publication number: WO2023125099A1
Application number: PCT/CN2022/139945
Authority: WO
Inventors: 戴霏菲; 戴建辉; 张军; 陈旭; 李星; 余正希; 吕建华
Original assignee: 戴霏菲; 戴建辉
Priority date: 2021-12-29
Filing date: 2022-12-19
Publication date: 2023-07-06
Also published as: CN114288005A

Abstract

A Kirschner wire (3) fixator and a use method therefor. The Kirschner wire (3) fixator comprises: a first fixing portion (1), a second fixing portion (2), and two or more Kirschner wires (3). The first fixing portion (1) is arranged opposite the second fixing portion (2), and the first fixing portion (1) and the second fixing portion (2) are detachably connected to one another. A Kirschner wire fixing structure (4) is arranged between the first fixing portion (1) and the second fixing portion (2). The Kirschner wires (3) are arranged in the Kirschner wire fixing structure (4), and the Kirschner wires (3) match the Kirschner wire fixing structure (4). A connecting portion (5) is arranged on the first fixing portion (1) or the second fixing portion (2) and is used for connecting to an object to be fixed. Two or more Kirschner wires (3) are fixed by means of the Kirschner wire fixing structure (4). For the object to be fixed by means of the Kirschner wire (3) fixator, two or more Kirschner wires (3) enhance the stability of the object to be fixed, and can effectively improve the safety of operations. In addition, the detachable structure allows a user to easily remove the Kirschner wires (3) from the Kirschner wire fixing structure (4), thereby improving the use flexibility the Kirschner wire (3) fixator.

Description

A kind of Kirschner wire holder and using method thereof

technical field

The invention relates to the technical field of orthopedic minimally invasive surgery, in particular to a Kirschner wire fixer for orthopedic minimally invasive surgery and a method for using the same.

Background technique

With the rapid development of surgical techniques and surgical auxiliary instruments, minimally invasive surgery has been widely used clinically. Minimally invasive surgery advocates small incisions and reduces the stripping of soft tissues, which can greatly reduce the bleeding and trauma of traditional surgery and accelerate postoperative recovery.

Orthopedic surgery is also increasingly emphasizing the treatment principles of small incision, less stripping, and early recovery.

Kirschner wire is the most commonly used fixing material in minimally invasive orthopedic surgery. There are two kinds of materials, namely stainless steel and titanium alloy. Kirschner wires are widely used in orthopedic surgery, and have the advantages of small trauma and low price. When Kirschner wires are used as external fixation brackets, it is usually necessary to fix the Kirschner wires on the holder and then connect them to the object to be fixed. However, the existing Kirschner wire holders have low adjustment flexibility and are inconvenient to use.

Contents of the invention

Therefore, it is necessary to provide a Kirschner wire holder and a method for using the same, so as to solve the problems of low flexibility and inconvenient use of the existing Kirschner wire holder.

In order to achieve the above object, the inventor provides a Kirschner wire holder, comprising: a first fixing part, a second fixing part and more than two Kirschner wires,

The first fixing part is arranged opposite to the second fixing part, and the first fixing part and the second fixing part are detachably connected, and a Kirschner wire fixing structure is arranged between the first fixing part and the second fixing part, The wires are arranged in the fixed structure of the Kirschner wires, and the Kirschner wires are adapted to the fixed structure of the Kirschner wires,

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

Further, 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 fixing grooves in an array, the fixing grooves of the first fixing part and the fixing grooves of the second fixing part Relatively arranged, the Kirschner wire is arranged between two fixing grooves.

Further, the side array of the first fixing part facing the second fixing part is provided with fixing grooves, the side of the second fixing part facing the first fixing part is provided with a rough area, and the Kirschner wire is arranged on the first fixing part between the groove and the rough zone.

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

Further, 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 wires are arranged between the two rough areas.

Further, first fixing holes are respectively opened at both ends of the first fixing part, and second fixing holes are also opened at both ends of the second fixing part, and the first fixing holes are set correspondingly to the second fixing holes,

The Kirschner wire fixer also includes a connecting piece, which is passed between the first fixing hole and the second fixing hole, and is used for connecting the first fixing part and the second fixing part.

Further, the connecting piece includes a bolt and a limiting piece fixed on the bolt column, a limiting groove is provided in the first fixing hole, and the limiting groove is adapted to the limiting piece, so as to prevent the connecting piece from moving from the first fixing hole. Detach from a fixed part.

Further, one end of the first fixing part is hinged with 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 buckle.

The inventor also provides a method for using a Kirschner wire holder, comprising the following steps:

Estimate the gap value of the patient to insert the Kirschner wire position,

Put the Kirschner wires into the Kirschner wire fixing structure, and the distance between at least two Kirschner wires matches the above-mentioned gap value;

connecting the first fixing part and the second fixing part, so that the Kirschner wire is fixed between them;

Inserting the Kirschner needle into the patient;

Fix the object to be fixed on the connecting part.

Further, the Kirschner wire fixator is used for the patient's spine,

Estimate the spinous process gap value of the patient's adjacent vertebrae, and set at least one Kirschner wire on each spinous process.

Different from the prior art, the above-mentioned technical solution has the following advantages: the Kirschner wire fixer forms a Kirschner wire fixing structure between the two after the first fixing part and the second fixing part are arranged oppositely, and is fixed by the Kirschner wire The structure fixes more than two Kirschner wires. For the object to be fixed by the Kirschner wire fixer, more than two Kirschner wires enhance the stability of the object to be fixed, and can effectively improve the operation efficiency. safety, to ensure the smooth progress of the operation, and the detachable structure between the first fixing part and the second fixing part is convenient for the user to disassemble the Kirschner wire from the Kirschner wire fixing structure, which improves the performance of the Kirschner wire fixer. Use flexibility.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of a kind of Kirschner wire fixer of the present embodiment;

Fig. 2 is the schematic diagram of the three-dimensional structure of a kind of Kirschner wire holder of the present embodiment;

Fig. 3 is a schematic diagram of the three-dimensional structure of a Kirschner wire holder in the present embodiment when the Kirschner wire is not installed;

Fig. 4 is a top view of a Kirschner wire holder in the present embodiment when the Kirschner wire is not installed;

Fig. 5 is a structural schematic diagram of a Kirschner wire holder in this embodiment, where both the first fixing part and the second fixing part are provided with rough areas;

Fig. 6 is a side view of a kind of Kirschner wire holder fixed by bolts in this embodiment;

Fig. 7 is a side view of a kind of Kirschner wire holder fixed by bolts and nuts in this embodiment;

Fig. 8 is a side view of a Kirschner wire holder fixed by bolts and nuts in this embodiment, and the nuts are fixed on the stud ends of the bolts;

FIG. 9 is a structural schematic diagram of a Kirschner wire holder in this embodiment, in which the connector is arranged in the middle of the first fixing part and the second fixing part;

Fig. 10 is a schematic structural view of the first fixing part of a Kirschner wire holder in this embodiment;

Fig. 11 is a schematic structural view of a second fixing part of a Kirschner wire holder in this embodiment;

Fig. 12 is a structural schematic diagram of a Kirschner wire holder provided with four Kirschner wires in this embodiment;

Fig. 13 is a structural schematic diagram of the hinge between the first fixing part and the second fixing part of a Kirschner wire holder in this embodiment;

Fig. 14 is a structural schematic diagram of a Kirschner wire fixer provided with hinges and connecting parts in this embodiment.

Explanation of reference signs:

1. The first fixed part;

11. The first fixing hole;

111, limit slot;

2. The second fixed part;

21. The second fixing hole;

3. Kirschner wire;

4. Kirschner wire fixed structure;

41. Fixed groove;

42. Rough area;

5. Connecting part;

6. Connectors;

61. Limiting piece;

62. Hinge.

Detailed ways

In order to describe in detail the possible application scenarios, technical principles, specific solutions that can be implemented, goals and effects that can be achieved, etc., the following will be described in detail in conjunction with the listed specific embodiments and accompanying drawings. The embodiments described herein are only used to illustrate the technical solutions of the present application more clearly, so they are only examples, and cannot be used to limit the protection scope of the present application.

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 present application. The word "embodiment" appearing in various positions in the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or relationship with other embodiments. In principle, in this application, as long as there is no technical contradiction or conflict, each technical feature mentioned in each embodiment can be combined in any way to form a corresponding implementable technical solution.

Unless otherwise defined, the meanings of the technical terms used herein are the same as those commonly understood by those skilled in the art to which the application belongs; the use of relevant terms herein is only to describe specific embodiments, and is not intended to limit the application .

In the description of this application, the term "and/or" is an expression used to describe the logical relationship between objects, indicating that there may be three relationships, such as A and/or B, which means: there is A, there is B, and There are three situations A and B at the same time. In addition, the character "/" in this article generally indicates that the contextual objects are a logical relationship of "or".

In this application, terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. Any actual quantitative, primary or sequential relationship.

Without further limitation, in this application, the words "including", "comprising", "having" or other similar expressions are intended to cover a non-exclusive inclusion, and these expressions do not exclude Additional elements may also be present in a process, method, or product that includes the stated elements, so that a process, method, or product that includes a series of elements may include not only those defined elements, but also other elements that are not explicitly listed , or also include elements inherent in such a process, method, or product.

The same as the understanding in the "Examination Guidelines", in this application, expressions such as "greater than", "less than" and "exceeding" are understood to not include the original number; expressions such as "above", "below" and "within" are understood to include This number. In addition, in the description of the embodiments of the present application, "multiple" means more than two (including two), and similar expressions related to "many" are also understood in this way, such as "multiple groups", " many times", etc., unless otherwise expressly and specifically defined.

In the description of the embodiments of the present application, expressions related to space used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", " Left, right, vertical, horizontal, vertical, top, bottom, inner, outer, clockwise, counterclockwise, axial, radial, circumferential, etc. The indicated orientation or positional relationship is based on the specific embodiment or the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the specific embodiment of the application or for the reader’s understanding, rather than indicating or implying that the referred device or component must Having a specific position, a specific orientation, or being constructed or operated in a specific orientation should not be construed as limiting the embodiments of the present application.

Unless otherwise specified or limited, in the description of the embodiments of the present application, terms such as "installation", "connection", "connection", "fixation" and "setting" should be understood in a broad sense. 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; it can be a direct connection, or a Connected indirectly through an intermediary; it may be an internal communication between two elements or an interactive relationship between two elements. Those skilled in the technical field to which the present application belongs can understand the specific meanings of the above terms in the embodiments of the present application according to specific situations.

Please refer to Fig. 1 to Fig. 14, a Kirschner wire 3 fixer in this 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 arranged oppositely, and the first fixing part 1 and the second fixing part 2 are detachably connected, and a gram is arranged between the first fixing part 1 and the second fixing part 2 A fixed structure 4 for the Kirschner wires, the Kirschner wires 3 are arranged in the fixed structure 4 for the Kirschner wires, and the Kirschner wires 3 are compatible with the fixed structure 4 for the Kirschner wires,

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 the object to be fixed.

The Kirschner wire fixing structure 4 can accommodate more than two Kirschner wires 3, the Kirschner wire fixing structure 4 is compatible with the Kirschner wire 3, the Kirschner wire 3 is fixed in the Kirschner wire fixing structure 4, and the first fixing part After 1 is connected with the second fixing part 2, the Kirschner wire 3 will not be fixed in the Kirschner wire fixing structure 4, and the Kirschner wire 3 will not be detached from between the first fixing part 1 and the second fixing part 2. The tip of the Kirschner wire 3 extends outward from between the first fixing part 1 and the second fixing part 2 .

The needles of the Kirschner wires 3 have the same orientation.

The first fixing part 1 and the second fixing part 2 are made of polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polystyrene (PS) or acrylonitrile-butadiene-styrene copolymer (ABS) and other materials, the first fixing part 1 and the second fixing part 2 can be a solid block structure or a hollow block structure. The shapes of the first fixing part 1 and the second fixing part 2 are cuboid, semi-cylindrical or hemisphere, etc., and the shapes and sizes of the first fixing part 1 and the second fixing part 2 can be similar.

Detachable connection refers to a simple and fast connection method, which generally only needs one insertion action or knob action to complete. The pre-assembly positioning requirements for the first fixing part 1 and the second fixing part 2 are relatively low, and the disassembly is convenient and quick. 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 not completely separating the first fixing part 1 and the second fixing part 2 after being disassembled is that the loss of the first fixing part 1, the second fixing part 2 or the connecting piece 6 between them can be avoided, and the first fixing part 2 can also be conveniently The next assembly of the fixing part 1 and the second fixing part 2 is used.

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

The object to be fixed may specifically be a tracer of an orthopedic surgical robot or other surgical supplies that need to be fixed on the patient's body.

The Kirschner wire 3 fixer forms a Kirschner wire fixing structure 4 between the two after the first fixing part 1 and the second fixing part 2 are arranged oppositely, and the Kirschner wire fixing structure 4 pairs more than two Kirschner wires. Needle 3 is fixed, for the object to be fixed to be fixed by the Kirschner wire 3 fixer, more than two Kirschner wires 3 have enhanced the stability of the object to be fixed, can effectively improve the safety of the operation, and ensure the stability of the operation. smoothly, and the detachable structure between the first fixing part 1 and the second fixing part 2 is convenient for the user to disassemble the Kirschner wire 3 from the Kirschner wire fixing structure 4, which improves the stability of the Kirschner wire 3 fixer. Use flexibility.

When the Kirschner wire fixer is in use, after the Kirschner wire is fixed between the first fixing part and the second fixing part, the needles of the Kirschner wires face the same direction, and the user aligns the needles of the Kirschner wires at the patient's Spinous process insertion, two Kirschner wires can be inserted into the same spinous process, or the distance between the two Kirschner wires can be adjusted and inserted into two adjacent or even non-adjacent spinous processes, so that the Kirschner wire The fixer is fixed on the body of the patient, and then the object to be fixed is fixed on the Kirschner wire fixer. As shown in Figure 12, for elderly patients, due to their osteoporosis, only one Kirschner wire fixation on the same spinous process will still have structural instability problems. Therefore, two wires can be set on the same spinous process. One Kirschner wire, and then set two more Kirschner wires on the adjacent spinous process, and even multiple Kirschner wires can be set.

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 both provided with fixing grooves 41 in an array, and the first fixing part The fixing groove 41 of 1 is opposite to the fixing groove 41 of the second fixing part 2 , and the Kirschner wire 3 is arranged between the two fixing grooves 41 .

The side of the first fixed part 1 facing the second fixed part 2 refers to the end face of the first fixed part 1 facing the second fixed part 2 after the first fixed part 1 and the second fixed part 2 are arranged and connected oppositely, or the first fixed part 1 The end surface in contact with the second fixed part 2; the side of the second fixed part 2 facing the first fixed part 1 means that after the first fixed part 1 and the second fixed part 2 are arranged and connected oppositely, the second fixed part 2 faces the first fixed part 2 An end surface of a fixed part 1 , or an end surface of the second fixed part 2 in contact with the first fixed part 1 .

Array arrangement means that the fixing grooves 41 are arranged equidistantly along the same direction, and the arrangement direction of the fixing grooves 41 on the first fixing part 1 is the same as that of the fixing grooves 41 on the second fixing part 2 . The number of fixing grooves 41 on the first fixing part 1 is more than two, and the number of fixing grooves 41 on the second fixing part 2 is also more than two. Preferably, the number of fixing grooves 41 of the first fixing part 1 and the number of fixing grooves 41 of the second fixing part 2 are the same, and the Kirschner wires formed by the fixing grooves 41 on the first fixing part 1 and the second fixing part 2 The number of 4 fixed structures is the same as the number of Kirschner wires 3 . Specifically, the fixing grooves 41 on the first fixing part 1 are arrayed along the length direction of the first fixing grooves 41, and the fixing grooves 41 extend on the first fixing part 1 along a direction perpendicular to the array direction thereof, and the second fixing part 2 The fixing slots 41 on the top are arrayed along the length direction of the second fixing slots 41 , and the fixing slots 41 extend on the second fixing portion 2 along a direction perpendicular to the array direction.

In some more preferred embodiments, the section of the fixing groove 41 is a semicircular structure with a diameter of 1-3 mm. After the first fixed part 1 and the second fixed part 2 are arranged and connected oppositely, the fixed groove 41 on the first fixed part 1 and the fixed groove 41 on the second fixed part 2 form a circular structure with a diameter of 1-3 mm, that is, The fixing structure 4 of the wire is a circular structure of 1-3mm, and the Kirschner wire 3 is a circle with a cross-sectional diameter of 1-3mm, and the Kirschner wire 3 is compatible with the fixing structure 4 of the Kirschner wire.

In some more preferred embodiments, the side of the first fixing part 1 facing the second fixing part 2 , or the side of the second fixing part 2 facing the first fixing part 1 is fixed with a rubber pad or a latex pad. That is, the side of the first fixing part 1 facing the second fixing part 2 is provided with a rubber pad or a latex pad, or the side of the second fixing part 2 facing the first fixing part 1 is provided with a rubber pad or a latex pad, or the first fixing part 1 Both the side facing the second fixing part 2 and the side of the second fixing part 2 facing the first fixing part 1 are provided with rubber pads or latex pads. Therefore, the frictional force between the Kirschner wire 3 and the first fixing part 1 or the second fixing part 2 is enhanced, and the Kirschner wire 3 is prevented from detaching from the Kirschner wire fixing structure 4 .

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

Arrangement in an array means that the fixing slots 41 are arranged equidistantly along the same direction. The number of fixing grooves 41 on the first fixing part 1 is more than two. The Kirschner wire fixing structure 4 at this time refers to the structure formed by the groove surface of the fixing groove 41 of the first fixing part 1 and the rough region 42 of the second fixing part 2. The fixing groove 41 of the first fixing part 1 and the second fixing groove The number of four Kirschner wire fixing structures formed by the rough region 42 of the fixing part 2 is the same as the number of Kirschner wires 3 . Specifically, the fixing grooves 41 on the first fixing part 1 are arrayed along the length direction of the first fixing grooves 41 , and the fixing grooves 41 extend on the first fixing part 1 along a direction perpendicular to the array direction.

The rough area 42 on the second fixing part 2 means that the friction coefficient of the material at this place is relatively large, which can be realized by setting anti-slip particles on the end surface of the second fixing part 2 facing the first fixing part 1, or on the second fixing part 2 This can be achieved by disposing some anti-slip materials (such as silicone material, rubber material or latex material, etc.) on the end surface facing the first fixing part 1 .

Similarly, in other embodiments, the second fixing part 2 is provided with fixing grooves 41 in an array facing the side of the first fixing part 1, and the side of the first fixing part 1 facing the second fixing part 2 is provided with a rough area 42, The Kirschner wire 3 is disposed between the second fixing groove 41 and the rough area 42 .

In some more preferred embodiments, the section of the fixing groove 41 is a semicircular structure with a diameter of 1-3 mm. After the first fixed part 1 and the second fixed part 2 are arranged and connected oppositely, the fixed groove 41 on the first fixed part 1 and the rough area 42 of the second fixed part 2 form a semicircular structure with a diameter of 1-3mm, that is, The fixing structure 4 of the wire is a semicircular structure of 1-3mm, and the Kirschner wire 3 is compatible with the fixing structure 4 of the Kirschner wire. Or between the first fixed part 1 and the second fixed part 2, it is not fully fitted, and a certain gap is set between the first fixed part 1 and the second fixed part 2, so that more specifications of Kirschner wires 3 can be accommodated. The fixing groove 41 on the first fixing part 1 plays a strong limiting effect on the Kirschner wire 3 and prevents the Kirschner wire 3 from moving along the gap between the first fixing part 1 and the second fixing part 2 .

In some more preferred embodiments, the side of the first fixing part 1 facing the second fixing part 2, or the side of the second fixing part 2 facing the first fixing part 1 is fixed with rubber pads, latex pads or silicone pads . That is, the side of the first fixing part 1 facing the second fixing part 2 is provided with a rubber pad or a latex pad, or the side of the second fixing part 2 facing the first fixing part 1 is provided with a rubber pad or a latex pad, or the first fixing part 1 Both the side facing the second fixing part 2 and the side of the second fixing part 2 facing the first fixing part 1 are provided with rubber pads or latex pads. Therefore, the frictional force between the Kirschner wire 3 and the first fixing part 1 or the second fixing part 2 is enhanced, and the Kirschner wire 3 is prevented from detaching from the Kirschner 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 both provided with a rough area 42, and the Kirschner wire 3 is set between the two rough areas 42.

The rough zone 42 on the first fixing part 1 and the rough zone 42 on the second fixing part 2 mean that the friction coefficient of the material there is relatively large. The end surface of the second fixing part 2 facing the first fixing part 1 is provided with anti-skid particles, or it is provided on the end surface of the first fixing part 1 facing the second fixing part 2 and the end surface of the second fixing part 2 facing the first fixing part 1 Some non-slip materials (such as silica gel material, rubber material or latex material etc.) realize.

In some preferred embodiments, first fixing holes 11 are respectively opened at both ends of the first fixing part 1, and second fixing holes 21 are also opened at both ends of the second fixing part 2. The first fixing holes 11 is set corresponding to the second fixing hole 21,

The Kirschner wire 3 fixer also includes a connecting piece 6 , which is passed between the first fixing hole 11 and the second fixing hole 21 , and is used for connecting the first fixing part 1 and the second fixing part 2 .

The connecting piece 6 may be a bolt, a screw, a slotted stud, an inner hexagonal stud, or a bolt and nut.

As shown in Figure 6, in this embodiment, the detachable connection between the first fixing part 1 and the second fixing part 2 is realized through the connecting piece 6, and at least one of the first fixing hole 11 and the second fixing hole 21 A through hole, the connector 6 is fixed in the second fixing hole 21 after passing through the first fixing hole 11, or is fixed in the first fixing hole 11 after passing through the second fixing hole 21, specifically, the first fixing hole 11 It is a through hole, and the second fixing hole 21 is a threaded blind hole. After the bolt passes through the first fixing hole 11, it is screwed in the second fixing hole 21. Of course, the first fixing hole 11 can also be a threaded hole; or the first fixing hole 11 and the second fixing hole 21 are both through holes, then the connector 6 passes through the first fixing hole 11 and the second fixing hole 21 at the same time, specifically, after the bolt passes through the first fixing hole 11 and the second fixing hole 21 and The nuts are connected to fix the first fixing part 1 and the second fixing part 2 . As shown in Figure 7, in other embodiments, the first fixing hole 11 is a through hole, the second fixing hole 21 is also a through hole, and the Kirschner wire is placed between the first fixing part and the second fixing part. In the fixing structure, after the bolt passes through the first fixing hole and the second fixing hole, it is tightened with the nut to fix the first fixing part and the second fixing part.

As shown in FIG. 8 , in this embodiment, the detachable connection between the first fixing part 1 and the second fixing part 2 is realized through a connecting piece 6 . Specifically, the connectors are bolts and nuts, and the nuts are fixed on the stud ends of the bolts, the first fixing hole is a through hole, the second fixing hole is a threaded hole matching the bolt, and the Kirschner wire is put into the first fixing part In the Kirschner wire fixing structure between the second fixing part, after the bolt passes through the first fixing hole, it is tightened with the inner thread of the second fixing hole to fix the first fixing part and the second fixing part. After tightening, there is a certain gap between the second fixing part and the nut.

As shown in Figure 9, in some preferred embodiments, a first fixing hole is opened in the middle of the first fixing part 1, a second fixing hole is also opened in the middle of the second fixing part 2, and the first fixing hole is opened in the middle of the second fixing part 2. The hole 11 is set corresponding to the second fixing hole 21,

In this embodiment, the detachable connection between the first fixing part 1 and the second fixing part 2 is realized through the connecting piece 6 . Specifically, the first fixing hole is a through hole, and 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 passes through the first fixing part. After the hole and the second fixing hole, tighten the nut 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 piece 61 fixed on the bolt column, and a limiting groove 111 is provided in the first fixing hole 11 to limit the The slot 111 fits with the limiting piece 61 and is used to prevent the connecting piece 6 from being disengaged from the first fixing part 1 .

The beneficial effect is that it can prevent the bolts from coming out of the first fixing hole 11, avoid parts loss of the Kirschner wire 3 fixer, and facilitate the next installation and use.

The shape of the limiting piece 61 can be circular, triangular, oval or square, and the edge of the limiting piece 61 protrudes from the surface of the bolt column. The limiting groove 111 is larger than the size of the first fixing hole 11, and the shape of the limiting groove 111 can also be circular, triangular, oval or square. The bolt is compatible with the first fixing hole 11, and the limiting groove 111 is compatible with the limiting piece 61. When the bolt is connected to the first fixing hole 11 and the second fixing hole 21, the bolt will be in the first fixing hole 11 along the The central axis of the first fixing hole 11 moves in the direction of the central axis, and the limiting groove 111 is provided with a certain length, which satisfies the movement range of the limiting piece 61 in the first fixing hole 11 along with the bolt.

In some preferred embodiments, as shown in Figure 13, one end of the first fixed part 1 is hinged to one end of the second fixed part 2 through a hinge 62, and the other end of the first fixed part 1 is connected to the second fixed part. The other end of part 2 is connected by a buckle.

The first fixed part 1 is connected to the hinge end of the second fixed part 2, and the first fixed part 1 and the second fixed part 2 can be rotated around the hinge to realize separation or closure. When the first fixed part 1 and the second fixed part 2 When separating, the Kirschner wire 3 can be put into or drawn out in the Kirschner wire fixing structure 4 between the first fixing part 1 and the second fixing part 2, when the first fixing part 1 and the second fixing part 2 are closed, the The Kirschner wire 3 is fixed in the Kirschner wire fixing structure 4 .

The hinge 62 may specifically be a hinge or a hinge or the like.

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

The Kirschner wire 3 fixator also includes a connecting piece 6, which is passed between the first fixing hole 11 and the second fixing hole 21, and is used to connect the first fixing part 1 and the second fixing part 2,

As shown in FIG. 14 , in this embodiment, the detachable connection between the first fixing part 1 and the second fixing part 2 is realized through a connecting piece 6 . Specifically, both the first fixing hole and the second fixing hole are through holes.

When in use, open the first fixing part and the second fixing part around the hinge of the two, put the Kirschner wire between the first fixing part and the second fixing part, and then close the first fixing part and the second fixing part After the bolt is passed through the first fixing hole and the second fixing hole, it is tightened with the nut to fix the first fixing part and the second fixing part.

The inventor also provides a method for using the Kirschner wire holder, comprising the following steps:

Estimate the gap value of the patient to insert the Kirschner wire position,

Inserting the Kirschner needle into the patient;

Fix the object to be fixed on the connecting part.

In some embodiments, the Kirschner wire fixer is used on the patient's spine, the spinous process gap value of the patient's adjacent vertebra is estimated, and at least one Kirschner wire is set on each spinous process.

When the Kirschner wire fixer is in use, the distance between at least two Kirschner wires is controlled to meet the gap value of the position to be inserted into the Kirschner wire, and after the Kirschner wire is fixed between the first fixing part and the second fixing part, the Kirschner wire The needles of the needles face the same direction. The user aligns the needles of the Kirschner wires with the patient’s spinous process and inserts them. Two Kirschner wires can be inserted into the same spinous process respectively, or the distance between the two Kirschner wires can be adjusted and inserted. Two adjacent or even non-adjacent spinous processes, so that the Kirschner wire fixer is fixed on the patient, and then the object to be fixed is fixed on the Kirschner wire fixer. As shown in Figure 11, for elderly patients, due to their osteoporosis, only one Kirschner wire fixation on the same spinous process will still have structural instability problems. Therefore, two wires can be set on the same spinous process. One Kirschner wire, and then set two Kirschner wires on the adjacent spinous process, and even two Kirschner wires can be set on the same spinous process.

Finally, it should be noted that although the above-mentioned embodiments have been described in the specification text and drawings of the present application, the scope of protection of the patent of the present application cannot be limited thereby. Any technical solution based on the substantive concept of this application, using the equivalent structure or equivalent process replacement or modification of the content recorded in the text and drawings of this application, and directly or indirectly implementing the technical solutions of the above embodiments in Other relevant technical fields, etc., are all included in the patent protection scope of this application.

Claims

A Kirschner wire fixer, characterized in that it includes: a first fixing part, a second fixing part and more than two Kirschner wires,

The first fixing part is arranged opposite to the second fixing part, and the first fixing part and the second fixing part are detachably connected, and a Kirschner wire fixing structure is arranged between the first fixing part and the second fixing part, The wires are arranged in the fixed structure of the Kirschner wires, and the Kirschner wires are adapted to the fixed structure of the Kirschner wires,

The first fixing part or the second fixing part is provided with a connecting part, and the connecting part is used for connecting the object to be fixed.
The Kirschner wire holder according to 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 fixing grooves in an array, and the second fixing part The fixing groove of the first fixing part is arranged opposite to the fixing groove of the second fixing part, and the Kirschner wire is arranged between the two fixing grooves.
The Kirschner wire holder according to claim 1, characterized in that: the first fixing part is provided with fixing grooves in an array towards the side of the second fixing part, and the second fixing part is arranged towards the side of the first fixing part There is a rough area, and the Kirschner wire is arranged between the first fixing groove and the rough area.
The Kirschner wire holder according to claim 2 or 3, characterized in that: the section of the fixing groove is a semicircular structure with a diameter of 1-3mm.
The Kirschner wire holder according to claim 1, characterized in that: 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, the The Kirschner wire is arranged between the two rough areas.
The Kirschner wire holder according to claim 1, characterized in that: first fixing holes are respectively opened at both ends of the first fixing part, and second fixing holes are also opened at both ends of the second fixing part, The first fixing hole is set correspondingly to the second fixing hole,

The Kirschner wire fixer also includes a connecting piece, which is passed between the first fixing hole and the second fixing hole, and is used for connecting the first fixing part and the second fixing part.
The Kirschner wire holder according to claim 6, characterized in that: the connecting piece includes 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 connected with the limiting groove. The limiting piece is suitable for preventing the connecting piece from disengaging from the first fixing part.
The Kirschner wire holder according to 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 to the second fixing part. The other end is connected by a buckle.
A method for using a Kirschner wire holder, comprising the following steps:

Estimate the gap value of the patient to insert the Kirschner wire position,

Put the Kirschner wires into the Kirschner wire fixing structure, and the distance between at least two Kirschner wires matches the above-mentioned gap value;

connecting the first fixing part and the second fixing part, so that the Kirschner wire is fixed between them;

Inserting the Kirschner needle into the patient;

Fix the object to be fixed on the connecting part.
The method of using the Kirschner wire fixer according to claim 9, characterized in that: the Kirschner wire fixer is used for the patient's spine,

Estimate the spinous process gap value of the patient's adjacent vertebrae, and set at least one Kirschner wire on each spinous process.