CN108542482B - Portable external fixing frame for fracture reduction - Google Patents
Portable external fixing frame for fracture reduction Download PDFInfo
- Publication number
- CN108542482B CN108542482B CN201810396599.3A CN201810396599A CN108542482B CN 108542482 B CN108542482 B CN 108542482B CN 201810396599 A CN201810396599 A CN 201810396599A CN 108542482 B CN108542482 B CN 108542482B
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- Prior art keywords
- rod
- fracture reduction
- axis
- extending
- connecting rod
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- 210000000988 bone and bone Anatomy 0.000 claims abstract description 10
- 208000010392 Bone Fractures Diseases 0.000 description 14
- 238000010586 diagram Methods 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 206010052428 Wound Diseases 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like for external osteosynthesis, e.g. distractors, contractors
- A61B17/66—Alignment, compression or distraction mechanisms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B2017/564—Methods for bone or joint treatment
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a portable external fixator for fracture reduction, which comprises two fixator bodies, wherein the two fixator bodies are folded or unfolded through a hinge shaft, each fixator body comprises a fixed seat and a connecting seat, a telescopic connecting rod assembly is arranged between the fixed seat and the connecting seat, a bone needle pressing block is arranged on each fixed seat through at least two bolts, a containing cavity for the connecting rod assembly to extend in is arranged in each fixed seat, the containing cavity comprises an opening for the connecting rod assembly to pass through, a rotating shaft is arranged at the opening, and a third through hole is arranged in the middle of the rotating shaft. The invention designs two foldable or unfolded fixing frame bodies, each fixing frame body can change the size through the telescopic connecting rod assembly so as to be suitable for different fracture reduction scenes, and the fixing seat in each fixing frame body can adjust the position of the bone needle during fracture reduction through the rotating shaft. The invention has simple structure and convenient carrying, and can be widely applied to the technical field of medical appliances for fracture reduction.
Description
Technical Field
The invention relates to the technical field of medical appliances for fracture reduction, in particular to a portable external fixing frame for fracture reduction.
Background
The serious injury suffered by the patient during the war time, natural disaster or oversized traffic accident often needs to be timely cured, and the special condition often has the characteristics of short time, large scale and mass wounded persons. At this time, it is important to fight for seconds to treat severe wounds, especially severe fractures. When a patient suffers from fracture trauma, rapid and good fracture reduction fixation is required. The emergency doctor generally cannot carry a large amount of medical instruments under emergency, and the current temporary external fixation system components are more required to be temporarily assembled, so that the emergency doctor is inconvenient and effective to use when facing a plurality of critical wounded persons. The external fixation of the splint is rapid, but the fixation is not firm enough, and the secondary injury of the patient is easily caused in the carrying process. Thus, the development of a rapid, efficient, robust fracture reduction fixation system is still highly desirable in order to facilitate convenient, efficient treatment of more patients in an emergency.
Disclosure of Invention
The invention aims to solve the technical problem of providing the portable external fixing frame for fracture reduction, which is convenient to carry and operate and can be rapidly used for fracture reduction.
The technical scheme adopted for solving the technical problems is as follows:
a portable external fixation frame for fracture reduction, including two mount main parts, two through the articulated shaft between the mount main part is folded or is expanded, each mount main part includes fixing base and connecting seat, the fixing base with arrange scalable link assembly between the connecting seat, the articulated shaft is arranged two between the connecting seat, each install the bone needle briquetting through two at least bolts on the fixing base, each the fixing base is arranged and is supplied the holding chamber that link assembly stretches into, the holding chamber is including supplying the uncovered that link assembly passed, the uncovered be arranged with link assembly axis vertically axis of rotation, the middle part of axis of rotation is arranged and is supplied the link assembly passes the third through-hole, the axis of third through-hole with the axis of rotation is perpendicular.
Further, the connecting rod assembly comprises an extending rod capable of extending into the accommodating cavity and a telescopic rod fixed to the connecting seat, the extending rod is of a sleeve structure, the telescopic rod extends out of the sleeve structure, two slots are arranged on the side face of the extending rod, each slot is parallel to the axis of the extending rod, each slot is located on the extending rod and faces towards one end of the telescopic rod, and a fastening sleeve ring is screwed on the extending rod and faces towards one end of the telescopic rod.
Further, two external gear structures are arranged on the side face of the telescopic rod along the axis, the tooth profile of each external gear structure is a unidirectional tooth, the two external gear structures are located at opposite positions, and two internal gear structures meshed with each external gear structure are arranged on the inner side face of the telescopic rod.
Further, the extension rod passes through the third through hole, and a fastening screw capable of supporting the side surface of the extension rod is arranged on the side wall of the third through hole.
Further, at least one limiting protrusion is arranged at one end of the extending rod extending into the accommodating cavity, and each limiting protrusion is located on the side face of the extending rod.
Further, the two connecting seats are fixed through at least two bolts, and at least two countersunk bolt holes are uniformly distributed on the two connecting seats.
Further, a second through hole is arranged on the side wall of the opening, the axis of the second through hole is perpendicular to the axis of the rotating shaft, and the axis of the second through hole and the axis of the third through hole are located on the same horizontal plane.
Further, the two slits are located at opposite positions.
Further, after the fastening screw is tightened, the tip of the fastening screw does not protrude beyond the side face of the rotating shaft.
The beneficial effects are that: the invention designs two foldable or unfolded fixing frame bodies, each fixing frame body can change the size through the telescopic connecting rod assembly so as to be suitable for different fracture reduction scenes, and the fixing seat in each fixing frame body can adjust the position of the bone needle during fracture reduction through the rotating shaft. The invention has simple structure and convenient carrying, and can be widely applied to the technical field of medical appliances for fracture reduction.
Drawings
FIG. 1 is a diagram of the structure of the invention after deployment;
FIG. 2 is a block diagram of the present invention after being retracted;
FIG. 3 is a top view of the holder;
FIG. 4 is a cross-sectional view of C-C of FIG. 2;
FIG. 5 is a sectional view of D-D of FIG. 3;
FIG. 6 is an assembly view of the extension rod, the telescoping rod and the fastening collar;
FIG. 7 is a block diagram of the end of the extension rod;
FIG. 8 is a cross-sectional view of a telescopic rod;
FIG. 9 is a cross-sectional view E-E of FIG. 7;
FIG. 10 is a diagram illustrating a structure of the connecting base under the view F of FIG. 2;
FIG. 11 is a schematic diagram of the fixing base under the view B in FIG. 3;
fig. 12 is a cross-sectional view A-A of fig. 3.
Detailed Description
The invention is further described below with reference to fig. 1 to 12.
The portable external fixator for fracture reduction comprises two fixator bodies, wherein the two fixator bodies are folded or unfolded through a hinge shaft 22, each fixator body comprises a fixed seat 12 and a connecting seat 20, a telescopic connecting rod assembly is arranged between the fixed seat 12 and the connecting seats 20, and the hinge shaft 22 is arranged between the two connecting seats 20. The external fixing frame designed by the invention is of a foldable structure, and is convenient to carry. And when in use, the length of the external fixing frame can be adjusted according to the actual length of the bone fracture.
After the two fixing frame bodies are unfolded, the two connecting seats 20 are fixed through at least two bolts, and at least two countersunk bolt holes are arranged on the two connecting seats 20.
The bone needle pressing blocks 11 are mounted on the fixing seats 12 through at least two bolts, grooves capable of containing bone needles are correspondingly arranged on the opposite side surfaces of the fixing seats 12 and the bone needle pressing blocks 11, and after the bolts are locked, the fixing seats 12 are correspondingly buckled with the grooves on the bone needle pressing blocks 11, so that bone needles can be fixed. The length direction of each groove is perpendicular to the extending and contracting direction of the connecting rod assembly.
Each fixing seat 12 is internally provided with a containing cavity into which the connecting rod assembly can extend, the containing cavity comprises an opening through which the connecting rod assembly can pass, the opening is provided with a rotating shaft 13 perpendicular to the axis of the connecting rod assembly, the middle part of the rotating shaft 13 is provided with a third through hole through which the connecting rod assembly can pass, and the axis of the third through hole is perpendicular to the axis of the rotating shaft 13.
In this embodiment, after the external fixing frame is unfolded, the two connecting rod assemblies are butt-jointed and lengthened through the two fixed connecting seats 20, and the two fixing seats 12 can swing and adjust positions through the corresponding rotating shafts 13.
The connecting rod assembly comprises an extending rod 21 which can extend into the accommodating cavity and a telescopic rod 23 which is fixed with the connecting seat 20, the extending rod 21 is of a sleeve structure, and the telescopic rod 23 can extend out of the sleeve structure so as to enable the connecting rod assembly to be lengthened. The side of the extension rod 21 is provided with two slits, each slit is parallel to the axis of the extension rod 21, and each slit is located at one end of the extension rod 21 facing the telescopic rod 23, and the end is screwed with a fastening collar 24. The fastening collar 14 is screwed down, and after screwing down, the slit closures are tightened. In this embodiment, the two slits are located at opposite positions, and the length of the two slits is about one tenth of the length of the protruding rod 21. Thus, after the length is adjusted, the relative positions of the telescopic rod 23 and the extension rod 21 can be fixed by tightening the fastening collar 14.
In this embodiment, two external gear structures are disposed on the side surface of the telescopic rod 23 along the axis, and the tooth profile of each external gear structure is a unidirectional tooth, and the unidirectional tooth is a tooth profile structure similar to that of a ratchet wheel, and the telescopic rod 23 can be pulled out and cannot be pushed back directly. The two external gear structures are located at opposite positions, and two internal gear structures meshed with each external gear structure are arranged on the inner side surface of the extending rod 21. When the length of the connecting rod assembly is to be shortened, the fastening collar 14 is loosened, the telescopic rod 23 is rotated by 90 degrees, and each external gear structure is separated from the corresponding internal gear structure, so that the telescopic rod 23 can be pushed back, and then the telescopic rod is reversed by 90 degrees and the fastening collar 14 is screwed.
The protruding rod 21 passes through the third through hole, and a fastening screw capable of pushing against the side surface of the protruding rod 21 is arranged on the side wall of the third through hole. The side wall of the accommodating cavity at the opening is provided with a second through hole, and the axis of the second through hole is perpendicular to the axis of the rotating shaft 13 and is positioned on the same horizontal plane with the axis of the third through hole. And a screwdriver is inserted through the second through hole and aligned with the third through hole, so that the fastening screw can be screwed. After the tightening screw is tightened, the tip end thereof does not protrude beyond the side surface of the rotation shaft 13, and thus does not interfere with rotation of the rotation shaft 13 by any angle.
At least one limiting protrusion is arranged at one end of the extending rod 21 extending into the accommodating cavity, and each limiting protrusion is located on the side surface of the extending rod 21, so that the extending rod 21 can be prevented from being separated from the third through hole. In this embodiment, in order to ensure that the stress is uniform, the number of the limiting protrusions is two, and the limiting protrusions are respectively located at positions where the side faces are opposite.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention.
Claims (7)
1. A portable external fixation frame for fracture reduction, its characterized in that: the telescopic connecting rod fixing device comprises two fixing frame bodies, wherein the two fixing frame bodies are folded or unfolded through a hinge shaft, each fixing frame body comprises a fixing seat and a connecting seat, a telescopic connecting rod assembly is arranged between the fixing seat and the connecting seat, the hinge shaft is arranged between the two connecting seats, a bone needle pressing block is arranged on each fixing seat through at least two bolts, a containing cavity which can be penetrated by the connecting rod assembly is arranged in each fixing seat, the containing cavity comprises an opening which can be penetrated by the connecting rod assembly, a rotating shaft which is perpendicular to the axis of the connecting rod assembly is arranged in the opening, a third through hole which can be penetrated by the connecting rod assembly is arranged in the middle of the rotating shaft, and the axis of the third through hole is perpendicular to the axis of the rotating shaft;
the connecting rod assembly comprises an extending rod capable of extending into the accommodating cavity and a telescopic rod fixed with the connecting seat, the extending rod is of a sleeve structure, the telescopic rod extends out of the sleeve structure, two slots are arranged on the side face of the extending rod, each slot is parallel to the axis of the extending rod, each slot is positioned at one end of the extending rod, which faces towards the telescopic rod, and a fastening sleeve ring is screwed at one end of the extending rod, which faces towards the telescopic rod;
two external gear structures are arranged on the side face of the telescopic rod along the axis, the tooth profile of each external gear structure is a unidirectional tooth, the two external gear structures are located at opposite positions, and two internal gear structures meshed with each external gear structure are arranged on the inner side face of the telescopic rod;
the one-way teeth are arranged to be of a tooth profile structure of ratchet wheel teeth, so that the telescopic rod can be pulled out and cannot be pushed back directly; when the length of the connecting rod assembly is required to be shortened, the fastening lantern ring is loosened, the telescopic rod is rotated by 90 degrees, each external tooth bar structure is separated from the corresponding internal tooth bar structure, and the telescopic rod can be pushed back, and then is reversed by 90 degrees and the fastening lantern ring is screwed.
2. A portable external fixator for fracture reduction as claimed in claim 1 wherein: the extension rod passes through the third through hole, and a fastening screw capable of propping against the side surface of the extension rod is arranged on the side wall of the third through hole.
3. A portable external fixator for fracture reduction as claimed in claim 1 wherein: one end of the extending rod extending into the accommodating cavity is provided with at least one limiting protrusion, and each limiting protrusion is located on the side face of the extending rod.
4. A portable external fixator for fracture reduction as claimed in claim 1 wherein: the two connecting seats are fixed through at least two bolts, and at least two countersunk bolt holes are uniformly distributed on the two connecting seats.
5. A portable external fixator for fracture reduction as claimed in claim 1 wherein: the side wall of the opening is provided with a second through hole, and the axis of the second through hole is perpendicular to the axis of the rotating shaft and is positioned on the same horizontal plane with the axis of the third through hole.
6. A portable external fixator for fracture reduction as claimed in claim 1 wherein: the two slits are located at opposite positions.
7. A portable external fixator for fracture reduction as claimed in claim 2 wherein: after the fastening screw is screwed down, the top end of the fastening screw does not exceed the side face of the rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810396599.3A CN108542482B (en) | 2018-04-27 | 2018-04-27 | Portable external fixing frame for fracture reduction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810396599.3A CN108542482B (en) | 2018-04-27 | 2018-04-27 | Portable external fixing frame for fracture reduction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108542482A CN108542482A (en) | 2018-09-18 |
| CN108542482B true CN108542482B (en) | 2023-11-07 |
Family
ID=63513060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810396599.3A Active CN108542482B (en) | 2018-04-27 | 2018-04-27 | Portable external fixing frame for fracture reduction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108542482B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2750791Y (en) * | 2004-07-22 | 2006-01-11 | 汤福刚 | Minimally invasive double-needle external fixing device for tibial fracture |
| CN201101607Y (en) * | 2007-11-27 | 2008-08-20 | 王德华 | Foldable fracture reductor |
| CN201905991U (en) * | 2010-11-26 | 2011-07-27 | 徐利江 | Stretching, pressurizing and adjusting rod for external bone fixation |
| CN202801773U (en) * | 2012-06-07 | 2013-03-20 | 汤福刚 | One-way double-track combined type external skeletal fixing device |
| CN209136827U (en) * | 2018-04-27 | 2019-07-23 | 南方医科大学南方医院 | Portable external fixing rack for the reduction of the fracture |
-
2018
- 2018-04-27 CN CN201810396599.3A patent/CN108542482B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2750791Y (en) * | 2004-07-22 | 2006-01-11 | 汤福刚 | Minimally invasive double-needle external fixing device for tibial fracture |
| CN201101607Y (en) * | 2007-11-27 | 2008-08-20 | 王德华 | Foldable fracture reductor |
| CN201905991U (en) * | 2010-11-26 | 2011-07-27 | 徐利江 | Stretching, pressurizing and adjusting rod for external bone fixation |
| CN202801773U (en) * | 2012-06-07 | 2013-03-20 | 汤福刚 | One-way double-track combined type external skeletal fixing device |
| CN209136827U (en) * | 2018-04-27 | 2019-07-23 | 南方医科大学南方医院 | Portable external fixing rack for the reduction of the fracture |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108542482A (en) | 2018-09-18 |
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