CN114601549A

CN114601549A - Internal fixation guiding device for assisting fracture reduction

Info

Publication number: CN114601549A
Application number: CN202210300889.XA
Authority: CN
Inventors: 严安; 梅海波; 李仁飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-25
Filing date: 2022-03-25
Publication date: 2022-06-10
Also published as: CN219354126U

Abstract

The invention discloses an internal fixation guiding device for assisting fracture reduction, which comprises a reduction forceps body, wherein one end of the reduction forceps body is provided with a first force arm, the other end of the reduction forceps body is provided with a second force arm, the end part of the second force arm is provided with a reduction forceps locking mechanism, a semi-ring positioning arm is arranged on the first force arm, a first sliding rail is arranged on the semi-ring positioning arm, a second sliding rail is arranged on the first force arm, the first force arm and the semi-ring positioning arm are fixedly connected through a quick locking mechanism, the quick locking mechanism comprises a quick locking mechanism A and a quick locking mechanism B, one end of the semi-ring positioning arm is provided with an A guiding groove, and the other end of the semi-ring positioning arm is provided with a B guiding groove. The invention realizes the fixation of the crossed kirschner wires at the fracture ends by arranging a series of structures, can quickly and accurately implant the kirschner wires at the preset positions in practical operation, reduces the implantation difficulty of the kirschner wires, saves the operation time of the operation, reduces the side damage in the operation, obviously improves the operation effect, and has stronger practicability.

Description

Internal fixation guiding device for assisting fracture reduction

Technical Field

The invention relates to the technical field of fracture reduction guiding, in particular to an internal fixation guiding device for assisting fracture reduction.

Background

The application of the modern clinical orthopaedics to the kirschner wire is more and more, a part of operations depend on the fixing and guiding functions of the kirschner wire, the kirschner wire is a commonly used internal fixing material in the orthopaedics, is used for fixing short fracture or avulsion fracture and other fracture with low stress, and is also used for fixing temporary fracture blocks in the orthopaedics, the original specification of the kirschner wire is generally fixed at about twenty centimeters, and the diameter of the kirschner wire is different from 0.5 to 2 millimeters.

When clinical use ke shi needle at present puts into the human body, it is inaccurate to appear putting the needle position, puts the skew of needle position, a series of problems such as fixed effect is unsatisfactory, and it is big to put into the degree of difficulty for ke shi needle, causes the operation time of ke shi needle implantation long, increased the intraoperative side damage, influences the operation effect, and the practicality is relatively poor.

Disclosure of Invention

The invention aims to provide an internal fixation guide device for assisting fracture reduction, which solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an auxiliary fracture resets internal fixation guider, is including the pincers body that resets, the one end of the pincers body that resets is equipped with the arm of force No. one, the other end of the pincers body that resets is equipped with the arm of force No. two, the tip of the arm of force No. two is equipped with pincers locking mechanism that resets, be equipped with semi-ring location arm on the arm of force, be equipped with a slide rail on the semi-ring location arm, be equipped with No. two slide rails on the arm of force, connect fixedly through fast latch mechanism between arm of force and the semi-ring location arm, fast latch mechanism includes fast latch mechanism A and fast latch mechanism B, the one end of semi-ring location arm is equipped with the A guide way, the other end of semi-ring location arm is equipped with the B guide way, the one end of A guide way and B guide way is equipped with the steel needle guide post, be equipped with the pointed cone on the arm of force No. one.

Preferably, the semi-ring positioning arm is arranged in a semicircular arc structure, the first sliding rail is arranged in the middle of the semi-ring positioning arm, and the first sliding rail and the semi-ring positioning arm are arranged in an equal ratio.

Preferably, the first force arm is a jaw-shaped structure, the second slide rail on the first force arm is an arc-shaped rail structure, the pointed cones are arranged on two opposite sides of the first sharp force arm of the jaw, and two pointed cones are arranged on each side of the first force arm.

Preferably, the guide groove A and the guide groove B are arranged in a semi-cylindrical structure, and a coaxial inner circular hole is formed in the middle of the guide groove A and the guide groove B.

Preferably, the steel needle guide post is the cylinder structure setting, be equipped with the kirschner wire hole in the cylinder of steel needle guide post, the aperture in kirschner wire hole corresponds the setting with the kirschner wire size.

Preferably, the quick locking mechanism A and the quick locking mechanism B are composed of a locking rod, a gasket and a locking handle, the locking rod is arranged on the first sliding rail and the second sliding rail, the gasket is arranged on the locking rod, and the locking handle is arranged at the top of the locking rod.

Preferably, the semi-ring positioning arm and the guide groove A, and the semi-ring positioning arm and the guide groove B are integrally formed.

Compared with the prior art, the invention has the beneficial effects that:

this supplementary internal fixation guider that resets of fracture, through the semi-ring locating arm that sets up and the pincers body that resets, a slide rail on the semi-ring locating arm cooperates with No. two slide rails on the arm of force, lock through quick latch mechanism A and quick latch mechanism B fast between semi-ring locating arm and the arm of force, combine A guide way and B guide way on the semi-ring locating arm, realize that the cross kirschner wire of fracture end is fixed, can be swiftly and accurate implant predetermined position with the kirschner wire in the real operation, reduce the kirschner wire and implant the degree of difficulty, save operation operating time, the vice damage in the reduction art, show improvement operation effect, the practicality is stronger.

Drawings

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

FIG. 2 is a schematic view of a half-ring positioning arm according to the present invention;

FIG. 3 is a schematic structural view of the reduction forceps body according to the present invention;

fig. 4 is a schematic view of the construction of the quick lock mechanism of the present invention.

In the figure: 1. a semi-ring positioning arm; 2. a reduction forceps body; 21. a force arm I; 22. a second moment arm; 3. A quick lock mechanism A; 31. a quick lock mechanism B; 4. a reset clamp locking mechanism; 5. a, a guide groove; 6. b, a guide groove; 7. a steel needle guide post; 8. a first slide rail; 9. a second sliding rail; 10. a pointed cone; 11. a locking lever; 12. a gasket; 13. and locking the handle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

As shown in fig. 1 to 4, the auxiliary fracture reduction internal fixation guiding device of the embodiment comprises a reduction forceps body 2, one end of the reduction forceps body 2 is provided with a first force arm 21, the other end of the reduction forceps body 2 is provided with a second force arm 22, the end part of the second force arm 22 is provided with a reduction forceps locking mechanism 4, the first force arm 21 is provided with a semi-ring positioning arm 1, the semi-ring positioning arm 1 is provided with a first slide rail 8, the first force arm 21 is provided with a second slide rail 9, the first force arm 21 and the semi-ring positioning arm 1 are fixedly connected through a quick locking mechanism, the quick locking mechanism comprises a quick locking mechanism A3 and a quick locking mechanism B31, one end of the semi-ring positioning arm 1 is provided with an a guide groove 5, the other end of the semi-ring positioning arm 1 is provided with a B guide groove 6, one end of the a guide groove 5 and one end of the B guide groove 6 are provided with a steel needle guide post 7, the first force arm 21 is provided with a pointed cone 10, the semi-ring positioning arm 1 and the first force arm 1 and the second force arm 21 are quickly locked through a quick locking mechanism a quick locking mechanism A3 and a quick locking mechanism B31, the cross kirschner wire fixation of the fracture end is realized by combining the guide groove A5 and the guide groove B6 on the semi-ring positioning arm 1, the kirschner wire can be quickly and accurately implanted into a preset position in actual operation, the implantation difficulty of the kirschner wire is reduced, the operation time is saved, the side injury in the operation is reduced, and the operation effect is obviously improved.

Specifically, semi-ring locating arm 1 is the setting of semicircle arc structure, and a slide rail 8 is located the centre of semi-ring locating arm 1, and the geometric proportion setting between a slide rail 8 and the semi-ring locating arm 1 makes things convenient for the regulation of semi-ring locating arm 1 on pincers body 2 that resets.

Furthermore, a first force arm 21 is arranged in a jaw-shaped structure, a second slide rail 9 on the first force arm 21 is arranged in an arc-shaped rail structure, pointed cones 10 are arranged on two opposite sides of the first force arm 21 at the tip of the jaw, two pointed cones 10 are arranged on each side of the first force arm 21, the front pointed cone 10 on the first force arm 21 is used for clamping the fracture far-end part through the skin, and the fracture far-end part and the fracture near-end part are restored to be involuted by a manipulation to meet the requirement of anatomical reduction.

Furthermore, the guide groove A5 and the guide groove B6 are both arranged in a semi-cylindrical structure, and coaxial inner circular holes are formed in the middles of the guide groove A5 and the guide groove B6, so that the steel needle guide column 7 can be conveniently inserted into the guide groove A5 and the guide groove B6.

Further, steel needle guide post 7 is the cylinder structure setting, is equipped with the kirschner wire hole in the cylinder of steel needle guide post 7, and the aperture in kirschner wire hole corresponds the setting with the kirschner wire size, the direction of inserting of the kirschner wire of being convenient for.

Further, quick-lock mechanism A3 and quick-lock mechanism B31 are by locking lever 11, gasket 12 and locking handle 13 are constituteed, locking lever 11 locates slide rail 8 No. one, on No. two slide rails 9, be equipped with gasket 12 on the locking lever 11, the top of locking lever 11 is equipped with locking handle 13, locking lever 11 is the setting of T type structure, locking lever 11 runs through slide rail 8 card and goes into the inside of inserting No. two slide rails 9, it is fixed with half ring location arm 1 and No. two arm of force 22, quick-lock mechanism A3 and quick-lock mechanism B31 convenient operation.

Furthermore, the semi-ring positioning arm 1 and the guide groove A5 and the semi-ring positioning arm 1 and the guide groove B6 are integrally formed, so that the structure is stable.

The using method of the embodiment comprises the following steps: in the operation, the front-end pointed cone 10 on the first force arm 21 of the reduction forceps body 2 is used for clamping the fracture far-end part through the skin, the fracture far-end and the fracture near-end are restored to be involuted by a manipulation to meet the requirement of anatomical reduction, and then the reduction forceps body 2 is locked by the reduction forceps locking mechanism 4 on the second force arm 22; then, the semi-ring positioning arm 1 is arranged in a second sliding rail 9 at the front end of the reduction forceps body 2, a quick locking mechanism is arranged in a first sliding rail 8 of the semi-ring positioning arm 1 and a second sliding rail 9 at the front end of the reduction forceps body 2, the movable angle of the semi-ring positioning arm 1 is controlled, the semi-ring positioning arm 1 is rotated to the direction of the Kirschner wire to be placed, the A guide groove 5 is attached to the skin of a patient, the Kirschner wire is inserted from the B guide groove 6 to probe the cortex lycii of the side to be placed, and the Kirschner wire can fix the far and near bone of the fracture and the direction of the Kirschner wire; and then fixing the reduction forceps body 2 with the semi-ring positioning arm 1 by using a quick locking mechanism, placing a kirschner wire into the far and near ends of the fracture by using a steel needle guide post 7 in an A guide groove 5 to guide the kirschner wire to be placed into the far and near ends of the fracture, wherein the head end of the kirschner wire penetrates out of opposite cortical bone positioned by a B guide groove 6 at the moment, and performing intraoperative X-ray fluoroscopy after the kirschner wire is placed into the fracture, so that the insertion position of the kirschner wire is satisfied, the steel needle guide post 7 is taken out in compliance with the tail end of the kirschner wire, unlocking the quick locking mechanism, adjusting the position of the semi-ring positioning arm 1, and placing another kirschner wire into the fracture in different angles in the same way, thereby realizing the crossed kirschner wire fixation of the fracture end, confirming that the fracture end is stably fixed, and unlocking the reduction forceps body 2.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an auxiliary fracture reduction internal fixation guider, includes pincers body (2) that reset, its characterized in that: one end of the reset clamp body (2) is provided with a first force arm (21), the other end of the reset clamp body (2) is provided with a second force arm (22), the end part of the second force arm (22) is provided with a reset clamp locking mechanism (4), the first force arm (21) is provided with a semi-ring positioning arm (1), the semi-ring positioning arm (1) is provided with a first sliding rail (8), the first force arm (21) is provided with a second sliding rail (9), the first force arm (21) and the semi-ring positioning arm (1) are fixedly connected through a quick locking mechanism, the quick locking mechanism comprises a quick locking mechanism A (3) and a quick locking mechanism B (31), one end of the semi-ring positioning arm (1) is provided with an A guide groove (5), the other end of the semi-ring positioning arm (1) is provided with a B guide groove (6), one ends of the A guide groove (5) and the B guide groove (6) are provided with a steel needle guide column (7), the first force arm (21) is provided with a pointed cone (10).

2. The internal fixation guide for assisting in the reduction of a bone fracture as claimed in claim 1, wherein: the semi-ring positioning arm (1) is in a semicircular arc-shaped structure, the first sliding rail (8) is arranged in the middle of the semi-ring positioning arm (1), and the first sliding rail (8) and the semi-ring positioning arm (1) are arranged in an equal ratio.

3. The internal fixation guide for assisting in the reduction of a bone fracture as claimed in claim 1, wherein: no. one arm of force (21) is the column structure setting of keeping silent, No. two slide rail (9) on the arm of force (21) are the arc track structure setting, pointed awl (10) are located and are kept silent most advanced arm of force (21) relative both sides on, No. one arm of force (21) every side all is equipped with two pointed awl (10).

4. The internal fixation guide for assisting in the reduction of a bone fracture as claimed in claim 1, wherein: the guide groove A (5) and the guide groove B (6) are arranged in a semi-cylindrical structure, and coaxial inner circular holes are formed in the middles of the guide groove A (5) and the guide groove B (6).

5. The internal fixation guide for assisting in the reduction of a bone fracture as claimed in claim 1, wherein: the steel needle guide post (7) are the cylinder structure setting, be equipped with the kirschner wire hole in the cylinder of steel needle guide post (7), the aperture and the kirschner wire size in kirschner wire hole correspond the setting.

6. The internal fixation guide device for assisting fracture reduction according to claim 1, wherein: the quick-locking mechanism A (3) and the quick-locking mechanism B (31) are composed of a locking rod (11), a gasket (12) and a locking handle (13), the locking rod (11) is arranged on a first sliding rail (8) and a second sliding rail (9), the gasket (12) is arranged on the locking rod (11), and the locking handle (13) is arranged at the top of the locking rod (11).

7. The internal fixation guide for assisting in the reduction of a bone fracture as claimed in claim 1, wherein: the semi-ring positioning arm (1) and the guide groove A (5) as well as the semi-ring positioning arm (1) and the guide groove B (6) are integrally formed.