CN220442723U - Tubular bone fracture reduction device - Google Patents
Tubular bone fracture reduction device Download PDFInfo
- Publication number
- CN220442723U CN220442723U CN202321714232.4U CN202321714232U CN220442723U CN 220442723 U CN220442723 U CN 220442723U CN 202321714232 U CN202321714232 U CN 202321714232U CN 220442723 U CN220442723 U CN 220442723U
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- forceps
- bone
- holding forceps
- rotating shaft
- universal
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- 208000010392 Bone Fractures Diseases 0.000 title claims abstract description 20
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 118
- 230000000149 penetrating effect Effects 0.000 claims abstract 2
- 238000006073 displacement reaction Methods 0.000 description 4
- 206010017076 Fracture Diseases 0.000 description 3
- 206010053206 Fracture displacement Diseases 0.000 description 3
- 210000000689 upper leg Anatomy 0.000 description 3
- 208000006670 Multiple fractures Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000399 orthopedic effect Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 206010016454 Femur fracture Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model discloses a tubular bone fracture reduction device, which comprises a left bone holding forceps and a right bone holding forceps; the left bone holding forceps and the right bone holding forceps comprise a first forceps body and a second forceps body, the first forceps body and the second forceps body of the left bone holding forceps are connected through a first rotating shaft, the first forceps body and the second forceps body of the right bone holding forceps are connected through a second rotating shaft, the first rotating shaft is connected with a connecting arm, the second rotating shaft is connected with a connecting cylinder, and the connecting cylinder is connected with the connecting cylinder through a universal connecting mechanism; the handles of the first clamp body and the second clamp body are provided with clamping bolts in a penetrating way. The universal connecting mechanism has two rotational degrees of freedom, so that the left bone holding forceps and the right bone holding forceps can clamp the tubular bone at random and are more convenient when the tubular bone is clamped for resetting. The universal connecting mechanism can form a lever fulcrum, so that the tubular bone can be conveniently clamped for rotating and resetting, and the tubular bone can be reset more efficiently and more labor-saving.
Description
Technical Field
The utility model relates to the field of medical appliances, in particular to a tubular bone fracture reduction device.
Background
Orthopedic surgery is usually performed with the aid of orthopedic instruments, and in the reduction of fractures, band-lock forceps are one of the common surgical instruments. In the long bone fracture operation, the shortness displacement is usually required to be corrected, the purpose of reduction is difficult to achieve by simple traction, and the external fixing frame is required to be used for traction temporarily when necessary. The external fixing frame is high in price and has larger damage to surrounding bones. Therefore, when bone surgery is performed, an operator often adopts two bone forceps with a lock to separate and reset broken bones, and the broken bones are fixed through internal fixtures such as steel plates, screws and the like. For example, after a femur fracture, the broken ends at two sides can generate shortening displacement, and the shortening of the femur needs to be corrected firstly before the anatomic reduction is carried out so as to realize preliminary reduction, but the existing mode mainly clamps and moves the two ends of the femur through a pair of bone pliers with a lock so as to reduce the two ends of the femur. Therefore, in view of the foregoing problems, there is a need for a tubular bone fracture reduction device that provides a more efficient initial reduction, is more convenient to reduce, and is more labor-efficient.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides the tubular bone fracture reduction device which has higher initial reduction efficiency, more convenient reduction and more labor-saving reduction.
In order to achieve the aim of the utility model, the utility model adopts the following technical scheme: comprises a left holding forceps and a right holding forceps, wherein the left holding forceps and the right holding forceps are the same; the left bone holding forceps and the right bone holding forceps comprise a first forceps body and a second forceps body, the first forceps body and the second forceps body of the left bone holding forceps are connected through a first rotating shaft, the first forceps body and the second forceps body of the right bone holding forceps are connected through a second rotating shaft, the first rotating shaft is connected with a connecting arm, the second rotating shaft is connected with a connecting cylinder, and the connecting arm is connected with the connecting cylinder through a universal connecting mechanism; the handles of the first clamp body and the second clamp body are penetrated and provided with clamping bolts which are in threaded connection with the two handles.
Further, the first clamp body and the second clamp body comprise clamping portions and handle portions, and the clamping portions and the handle portions are integrally formed.
Further, the clamping part is arc-shaped, a plurality of anti-skidding nails are arranged on the inner side of the arc-shaped clamping part, and the anti-skidding nails are conical.
Further, an external thread is arranged on the clamping bolt, a limiting convex ring is arranged in the middle of the clamping bolt, the external thread is divided into a left thread and a right thread by the limiting convex ring, the rotation directions of the left thread and the right thread are opposite, and a rotating handle is further fixed at one end of the clamping bolt.
Further, the universal connecting mechanism comprises a hinging block and four universal hinging shafts, the hinging block is a cube block, each universal hinging shaft is vertically fixed on the surface of the hinging block, and the axes of the four universal hinging shafts are positioned on the same plane; the connecting arm and the connecting cylinder are respectively provided with a U-shaped hinge end matched with the universal hinge shaft, and the U-shaped hinge end is provided with a hinge hole for installing the universal hinge shaft.
Further, be provided with the flexible through-hole of installation second pivot on the connecting cylinder, set up the fastening through-hole on the connecting cylinder, be provided with fastening screw in the fastening through-hole, fastening screw and fastening through-hole threaded connection still are provided with a plurality of regulation recesses with fastening screw tip joint complex in the second pivot.
Further, the small end of the fastening screw is a semicircular ball part, and the adjusting groove is a semicircular ball groove.
Further, the length of the telescopic through hole is equal to the length of the exposed section of the second rotating shaft.
Further, the cross section of the telescopic through hole is rectangular, and the cross section of the exposed section of the second rotating shaft is rectangular.
The beneficial effects of the utility model are as follows:
the left bone holding forceps and the right bone holding forceps can clamp two fractured tubular bones, the left bone holding forceps and the right bone holding forceps are connected in a matched mode through the connecting arm, the connecting cylinder and the universal connecting mechanism, the universal connecting mechanism has two rotational degrees of freedom, and the requirements of different clamping angles of the left bone holding forceps and the right bone holding forceps on different surfaces can be met, so that the clamping angles of the left bone holding forceps and the right bone holding forceps are more random when the tubular bones are respectively clamped, and the tubular bones are clamped more conveniently when the tubular bones are reset.
The universal connecting mechanism can form a lever fulcrum through connection and matching among the U-shaped hinge ends, the hinge blocks and the universal hinge shafts, so that the tubular bone can be conveniently clamped for rotary reset, and the tubular bone can be reset more efficiently and more labor-saving.
The second rotating shaft can stretch and retract in the connecting cylinder, so that the distance between the left bone holding forceps and the right bone holding forceps is changed, and the left bone holding forceps and the right bone holding forceps can meet the requirement of tubular bone preliminary reduction of different fracture displacements.
Drawings
FIG. 1 is a top view of the present utility model;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a schematic view of the structure of the left bone holding forceps;
FIG. 4 is a schematic structural view of a universal connection mechanism;
FIG. 5 is a schematic diagram of the operation of the present utility model;
FIG. 6 is a second schematic diagram of the operation of the present utility model;
wherein the symbols of the components are as follows:
1. left bone holding forceps; 11. a clamping part; 12. a handle; 13. clamping bolts; 14. a rotating handle; 15. an anti-skid nail;
2. a right bone holding forceps; 3. a first rotating shaft; 4. a second rotating shaft; 5. a connecting arm; 6. a connecting cylinder; 8. a fastening screw; 9. an adjusting groove; 10. a tubular bone;
7. a universal connection mechanism; 71. a U-shaped hinge end; 72. a hinge block; 73. and a universal hinge shaft.
Detailed Description
The following description of the embodiments of the present utility model is provided to facilitate understanding of the present utility model by those skilled in the art, but it should be understood that the present utility model is not limited to the scope of the embodiments, and all the utility models which make use of the inventive concept are protected by the spirit and scope of the present utility model as defined and defined in the appended claims to those skilled in the art.
As shown in fig. 1 and 2, the tubular bone fracture reduction device includes a left holding forceps 1 and a right holding forceps 2, the left holding forceps 1 and the right holding forceps 2 being identical. The left bone holding forceps 1 and the right bone holding forceps 2 comprise a first forceps body and a second forceps body, the first forceps body and the second forceps body of the left bone holding forceps 1 are connected through a first rotating shaft 3, the first forceps body and the second forceps body of the right bone holding forceps 2 are connected through a second rotating shaft 4, the first rotating shaft 3 is connected with a connecting arm 5, the second rotating shaft 4 is connected with a connecting cylinder 6, the connecting arm 5 and the connecting cylinder 6 are connected through a universal connecting mechanism 7, the universal connecting mechanism 7 is similar to a universal joint, and the left bone holding forceps 1 and the right bone holding forceps 2 are connected and simultaneously can be provided for rotation in two degrees of freedom between the left bone holding forceps 1 and the right bone holding forceps 2, so that any clamping angle is formed between the left bone holding forceps 1 and the right bone holding forceps 2, and the left bone holding forceps 1 and the right bone holding forceps 2 are convenient to clamp tubular bones respectively; simultaneously, the left bone holding forceps 1 and the right bone holding forceps 2 can play a role similar to a bar lever under the rotation action of the universal connecting mechanism 7, the left bone holding forceps 1 can hold the fixed tubular bone and keep the tubular bone at the other position to move by rotating the right bone holding forceps 2 towards the connecting mechanism 7 and using the right bone holding forceps 2 to hold and drive the tubular bone at the other position to move to an initial reset position. The first clamp body and the second clamp body comprise a clamping part 11 and a handle part 12, and the clamping part 11 and the handle part 12 are integrally formed. The handle 12 is slightly bent inwards to form a curve part convenient for clamping and holding, the clamping part 11 is arc-shaped, a plurality of anti-skidding nails 15 are arranged on the arc-shaped inner side of the clamping part 11, the anti-skidding nails 15 are conical, and the anti-skidding nails 15 are used for increasing friction force of the clamping part 11 on the tubular bone, so that the left bone holding forceps 1 and the right bone holding forceps 2 can clamp and fix the tubular bone by utilizing the first forceps body and the second forceps body, and the tubular bone after fracture can be moved conveniently to carry out preliminary reduction. The ends of the first rotating shaft 3 and the second rotating shaft 4 prevent the first clamp body and the second clamp body from falling off, the concrete structure can adopt similar structures of a vice, a clamp and scissors in the prior art, and limit convex rings or structures similar to rivet caps can also be arranged at the two ends of the first rotating shaft 3 and the second rotating shaft 4.
As shown in fig. 3, a clamping bolt 13 is provided to penetrate the handles 12 of the first and second clamp bodies, and the clamping bolt 13 is screwed to the two handles 12. The clamping bolt 13 is provided with external threads, the middle part of the clamping bolt 13 is provided with a limiting convex ring, the limiting convex ring divides the external threads into left threads and right threads, the rotation directions of the left threads and the right threads are opposite, through the reverse left threads and right threads, the rotating handle 14 on the clamping bolt 13 is rotated, namely the clamping part 11 of the first clamp body and the second clamp body can be driven to clamp and loosen tubular bones, and meanwhile, the left threads and the right threads have self-locking performance, namely the thread lift angle is larger than the friction angle.
As shown in fig. 4, the universal joint mechanism 7 includes a hinge block 72 and four universal hinge shafts 73, the hinge block 72 is a cubic block, each universal hinge shaft 73 is vertically fixed on the surface of the hinge block 72, and the axes of the four universal hinge shafts 73 are located on the same plane. The connecting arm 5 and the connecting cylinder 6 are respectively provided with a U-shaped hinging end 71 matched with the universal hinging shaft 73, and the U-shaped hinging end 71 is provided with a hinging hole matched with the universal hinging shaft 73. The hinging block 72, the universal hinging shaft 73 and the U-shaped hinging end 71 form a mechanism similar to a universal joint, so that any clamping angle can be formed between the left bone holding forceps 1 and the right bone holding forceps 2, and the left bone holding forceps 1 and the right bone holding forceps 2 can be used for clamping and primarily resetting two fractured tubular bones conveniently. Moreover, the hinge block 72, the universal hinge shaft 73 and the U-shaped hinge end 71 can form a bar fulcrum, thereby facilitating clamping, rotating and resetting of the tubular bone, and enabling preliminary resetting of the tubular bone to be more labor-saving and efficient.
The connecting cylinder 6 is provided with a telescopic through hole for installing the second rotating shaft 4, the connecting cylinder 6 is provided with a fastening through hole, a fastening screw 8 is arranged in the fastening through hole, the fastening screw 8 is in threaded connection with the fastening through hole, and the second rotating shaft 4 is also provided with a plurality of adjusting grooves 9 which are in clamping fit with the small ends of the fastening screw 8. The clamping structure of the fastening screw 8 and the adjusting groove 9 facilitates the adjustment and extension of the distance between the left bone holding forceps 1 and the right bone holding forceps 2, so that the left bone holding forceps 1 and the right bone holding forceps 2 can be suitable for the preliminary reduction of different fracture displacement distances.
In this embodiment, the small end of the fastening screw 8 is a semi-spherical portion, the adjusting groove 9 is a semi-spherical groove, the small end of the fastening screw 8 of the semi-spherical portion is in clamping fit with the adjusting grooves 9 of a plurality of semi-spherical grooves, and the extension length of the second rotating shaft 4 can be fixed, so that the left bone holding forceps 1 and the right bone holding forceps 2 can respectively clamp tubular pile bones with different fracture displacements, the applicability of the utility model is better, and the specification number of the resetting device is reduced.
In this embodiment, the length of the telescopic through hole is equal to the length of the exposed section of the second rotating shaft 4. The connecting cylinder 6 is matched with the second rotating shaft 4, so that the distance between the left bone holding forceps 1 and the right bone holding forceps 2 can be adjusted, and the adjustment range is larger, thereby meeting the primary clamping and resetting of tubular pile bones with different displacements.
In this embodiment, the cross section of the telescopic through hole is rectangular, and the cross section of the exposed section of the second rotating shaft 4 is rectangular. The cross section areas of the telescopic through holes and the second rotating shaft 4 are rectangular, and the rectangular cross section can effectively prevent the connecting cylinder 6 from rotating with the second rotating shaft 4, so that the small ends of the fastening screws 8 can be clamped with the adjusting grooves 9 better.
The working principle and the process thereof are as follows: before use, the second rotating shaft 4 can stretch and retract relative to the connecting cylinder 6 by tightening the fastening screw 8, the distance between the left bone holding forceps 1 and the right bone holding forceps 2 is adjusted to a proper distance according to the displacement distance between two tubular bones 10 after fracture, then the fastening screw 8 is screwed to clamp the second rotating shaft 4 into the corresponding adjusting groove 9, and then the primary resetting work of the tubular bones 10 is carried out. When in use, the left bone holding forceps 1 is used for clamping and fixing the first tubular bone 10, specifically, the clamping bolt 13 is driven to rotate by the rotating handle 14, so that the two handle parts 12 are moved close to each other, the clamping part 11 and the anti-skid nail 15 are used for clamping and fixing the first tubular bone 10, the first tubular bone 10 is used for clamping one tubular bone which is difficult to rotate, and the left bone holding forceps 1 is used for clamping and fixing the tubular bone which is difficult to move. Then the right bone holding forceps 2 is used for holding and fixing the tubular bone 10 at the second position, the holding process is the same as that of the left bone holding forceps 1, and the tubular bone 10 at the first position is preferably a tubular bone with convenient movement; when the tubular bone 10 at the second position is clamped, the left bone holding forceps 1 and the right bone holding forceps 2 are preferably made to be obtuse angles, as shown in fig. 5, so that when the left bone holding forceps 1 is ensured to be motionless, the tubular bone 10 at the second position clamped by the right bone holding forceps 2 is rotated and initially reset by utilizing the lever fulcrum action of the universal connecting mechanism 7, as shown in fig. 6, and the initial resetting of the tubular bone 10 is simplified and labor-saving.
Claims (8)
1. A tubular bone fracture reduction device is characterized by comprising a left bone holding forceps (1) and a right bone holding forceps (2), wherein the left bone holding forceps (1) and the right bone holding forceps (2) are the same;
the left bone holding forceps (1) and the right bone holding forceps (2) comprise a first forceps body and a second forceps body, the first forceps body and the second forceps body of the left bone holding forceps (1) are connected through a first rotating shaft (3), the first forceps body and the second forceps body of the right bone holding forceps (2) are connected through a second rotating shaft (4), the first rotating shaft (3) is connected with a connecting arm (5), the second rotating shaft (4) is connected with a connecting cylinder (6), and the connecting arm (5) and the connecting cylinder (6) are connected through a universal connecting mechanism (7);
the handles (12) of the first clamp body and the second clamp body are provided with clamping bolts (13) in a penetrating manner, and the clamping bolts (13) are in threaded connection with the two handles (12);
the universal connection mechanism (7) comprises a hinging block (72) and four universal hinging shafts (73), the hinging block (72) is a cube, each universal hinging shaft (73) is vertically fixed on the surface of the hinging block (72), and the axes of the four universal hinging shafts (73) are located on the same plane; the universal hinge is characterized in that U-shaped hinge ends (71) matched with the universal hinge shafts (73) are arranged on the connecting arm (5) and the connecting cylinder (6), and hinge holes for installing the universal hinge shafts (73) are formed in the U-shaped hinge ends (71).
2. The tubular bone fracture reduction device according to claim 1, wherein the first forceps body and the second forceps body each comprise a clamping portion (11) and a handle portion (12), and the clamping portion (11) and the handle portion (12) are integrally formed.
3. The tubular bone fracture reduction device according to claim 2, wherein the clamping portion (11) is arc-shaped, a plurality of cleats (15) are provided on the arc-shaped inner side of the clamping portion (11), and the cleats (15) are cone-shaped.
4. The tubular bone fracture reduction device according to claim 1, wherein an external thread is provided on the clamping bolt (13), a limiting convex ring is provided in the middle of the clamping bolt (13), the limiting convex ring divides the external thread into a left thread and a right thread, the rotation directions of the left thread and the right thread are opposite, and a rotating handle (14) is further fixed at one end of the clamping bolt (13).
5. The tubular bone fracture reduction device according to claim 1, characterized in that a telescopic through hole for installing the second rotating shaft (4) is arranged on the connecting cylinder (6), a fastening through hole is arranged on the connecting cylinder (6), a fastening screw (8) is arranged in the fastening through hole, the fastening screw (8) is in threaded connection with the fastening through hole, and a plurality of adjusting grooves (9) which are in clamping fit with the small end of the fastening screw (8) are further arranged on the second rotating shaft (4).
6. The tubular bone fracture reduction device according to claim 5, characterized in that the small end of the fastening screw (8) is a half-sphere and the adjustment groove (9) is a half-sphere groove.
7. The tubular bone fracture reduction device according to claim 5, wherein the length of the telescopic through hole is equal to the length of the exposed section of the second shaft (4).
8. The tubular bone fracture reduction device according to claim 7, wherein the cross section of the telescopic through hole is rectangular, and the cross section of the exposed section of the second rotation shaft (4) is rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321714232.4U CN220442723U (en) | 2023-06-30 | 2023-06-30 | Tubular bone fracture reduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321714232.4U CN220442723U (en) | 2023-06-30 | 2023-06-30 | Tubular bone fracture reduction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220442723U true CN220442723U (en) | 2024-02-06 |
Family
ID=89730540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321714232.4U Active CN220442723U (en) | 2023-06-30 | 2023-06-30 | Tubular bone fracture reduction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220442723U (en) |
-
2023
- 2023-06-30 CN CN202321714232.4U patent/CN220442723U/en active Active
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