CN113520557A - Mechanical external fracture repositor - Google Patents
Mechanical external fracture repositor Download PDFInfo
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- CN113520557A CN113520557A CN202110907235.9A CN202110907235A CN113520557A CN 113520557 A CN113520557 A CN 113520557A CN 202110907235 A CN202110907235 A CN 202110907235A CN 113520557 A CN113520557 A CN 113520557A
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- 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
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- 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
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Abstract
The invention discloses a mechanical external fracture repositor, which comprises a control component, a movement component and a positioning nail, wherein the control component is connected with the movement component; the control assembly comprises a limiting structure; the limiting structure is arranged in the control assembly; the motion assembly comprises a motion block I and a motion block II; the first motion block and the second motion block are respectively arranged on two sides of the control assembly and connected with the control assembly; the first motion block is connected with the second motion block; the positioning nails are respectively arranged inside the first motion block and the second motion block and are respectively connected with the first motion block and the second motion block. The invention has the beneficial effects that: (1) the whole body is light and convenient, and the binding to the patient is low; (2) easy to assemble, shorten the operation time and improve the working efficiency of doctors.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a mechanical external fracture repositor.
Background
Fracture refers to the continuous complete or partial breakdown of bone structure. The patients often have fracture at one part and multiple fractures in a few, most patients can recover the original functions after timely and proper treatment, and the sequela of different degrees can be left in a few patients.
The three basic principles of fracture treatment are reduction, fixation and functional exercise, respectively. The reduction means that the broken ends are connected, the fracture repair can be smoothly carried out by reducing the fracture at the early stage in good position, the better the reduction is, the more the growth and the healing of the bone at the fracture part are facilitated, and the higher the future recovery degree is.
For patients with comminuted fracture of leg, the two broken bones will form up-down staggered state, and the two broken bones must be pulled apart slightly during the operation to restore the original position. The traction bed and the reset device used at present have complex operation and limited functions, and need a patient to keep lying down for a long time, so the comfort level is lower.
Aiming at the problems, the invention provides a mechanical external fracture repositor.
Disclosure of Invention
In order to overcome the problems in the background art, the invention provides a mechanical external fracture repositor.
A mechanical external fracture repositor comprises a control component, a motion component and a positioning nail; the control assembly comprises a limiting structure; the limiting structure is arranged in the control assembly; the motion assembly comprises a motion block I and a motion block II; the first motion block and the second motion block are respectively arranged on two sides of the control assembly and connected with the control assembly; the first motion block is connected with the second motion block; the positioning nails are respectively arranged inside the first motion block and the second motion block and are respectively connected with the first motion block and the second motion block.
Furthermore, the control assembly further comprises a control assembly shell, a power input end, a bearing and a rotating shaft.
Preferably, the control assembly shell is a square shell, the top of the control assembly shell is provided with a first through hole used for exposing the power input end, and the two sides of the control assembly shell are provided with second through holes used for installing the first moving block and the second moving block; the power input end is of a columnar structure, one end of the power input end is of a hexagonal prism structure, the other end of the power input end is of a gear structure, and a round hole for mounting a bearing is formed in the end face of the gear structure; the rotating shaft is of a cylindrical structure.
Preferably, the limiting structure is arranged in the middle of the power input end and is fixedly connected with the power input end; the rotating shaft is arranged in the center of the interior of the control assembly shell and is fixedly connected with the control assembly shell; the bearing is inserted with the rotating shaft; the power input end is inserted into the bearing; the power input end rotates freely by taking the rotating shaft as a center and can be locked by using a limiting structure.
Furthermore, limit structure includes ratchet, positioning seat, pin rod and gyration spring.
Preferably, the positioning seat is arranged on the inner side wall of the control assembly shell and is fixedly connected with the control assembly shell; the pin rod is rotatably connected with the positioning seat; the ratchet wheel is arranged in the middle of the power input end and is fixedly connected with the power input end; one end of the rotary spring is fixedly connected with the pin rod, and the other end of the rotary spring is fixedly connected with the control assembly shell; the ratchet wheel is matched with the pin rod by applying the self structural characteristic, so that the power input end can only rotate in one direction.
Furthermore, the first moving block comprises a first moving block shell, a first rack and a first sliding rail.
Preferably, the first motion block shell is of a rectangular shell structure, a first threaded hole for mounting a positioning nail is formed in the middle of the first motion block shell, and a rectangular hole for mounting a first sliding rail is formed in the side face of the first motion block shell; and the first sliding grooves are formed in the two side walls of the first rack, which are in contact with the tooth-shaped surface.
Preferably, the first rack is arranged on the side wall of the first moving block shell and is connected with the moving block shell in an integrated manner; the first sliding rail is arranged inside the first moving block shell and fixedly connected with the first moving block shell; the first rack and the first slide rail are arranged on the same side of the first moving block shell.
Furthermore, the second moving block comprises a second moving block shell, a second rack and a second sliding rail.
Preferably, the second motion block shell is of a rectangular shell structure, the middle part of the second motion block shell is provided with a second threaded hole for mounting a positioning nail, and the side surface of the second motion block shell is provided with a rectangular hole for mounting a second sliding rail; and two sliding grooves II are formed in the two side walls of the second rack, which are in contact with the tooth-shaped surface.
Preferably, the second rack is arranged on the side wall of the second moving block shell and is integrally connected with the second moving block shell; the second sliding rail is arranged inside the second moving block shell and is fixedly connected with the second moving block shell; the second rack and the second slide rail are arranged on the same side of the second moving block shell.
Furthermore, the first rack penetrates through the control assembly shell and is connected with the second sliding rail in a sliding mode; the second rack penetrates through the control assembly shell and is connected with the first sliding rail in a sliding mode; the first rack and the second rack are meshed with a gear structure at the power input end; and when the power input end is rotated, the gear structure drives the first rack and the second rack to slide, so that the first motion block and the second motion block move relatively.
Further, the positioning nail comprises a threaded rod and a nail cap.
Preferably, the nail cap is of a cylindrical structure, one end of the nail cap is provided with a regular hexagonal hole, and the other end of the nail cap is integrally connected with the threaded rod.
Preferably, the positioning nails are respectively arranged in the first threaded hole and the second threaded hole; and after passing through the first threaded hole and the second threaded hole respectively, the positioning nails are fixed with the two broken bones through threads respectively, and then the power input end is rotated to enable the first moving block and the second moving block to move relatively, so that the two broken bones are driven to be separated.
Furthermore, a positioning wrench for screwing the positioning nail and a control wrench for rotating the power input end are arranged.
Preferably, the positioning wrench is of an L-shaped hexagonal prism structure and is matched with a regular hexagonal hole in the positioning nail cap.
Further, the control wrench comprises a handle and a clamping opening.
Preferably, the handle is of an L-shaped cylindrical structure; the clamping opening is of a cylindrical structure.
Preferably, one end of the clamping port is integrally connected with the handle, and the other end of the clamping port is provided with a hexagonal hole matched with the hexagonal structure of the power input end.
The invention has the beneficial effects that: (1) the whole body is light and convenient, and the binding to the patient is low; (2) easy to assemble, shorten the operation time and improve the working efficiency of doctors.
The use method of the invention comprises the following steps:
1. after the positioning nails respectively penetrate through the first threaded holes and the second threaded holes, the positioning wrench is applied to be respectively fixed with the two broken bone threads;
2. the control wrench is used for rotating the power input end to control the motion assembly to move relatively, so that the broken bone is pulled open.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a control assembly of the present invention;
FIG. 3 is a cross-sectional view of the control assembly of the present invention;
FIG. 4 is a schematic view of a limiting structure of the present invention;
FIG. 5 is a schematic view of a motion block of the present invention;
FIG. 6 is a cross-sectional view of the kinematic block of the present invention;
FIG. 7 is a schematic structural diagram of a second motion block of the present invention;
FIG. 8 is a second cross-sectional view of the kinematic block of the present invention;
FIG. 9 is a schematic view of the overall structure of embodiment 3 of the present invention;
FIG. 10 is a schematic view of a wrench according to embodiment 3 of the present invention;
FIG. 11 is a side view of a wrench in embodiment 3 of the present invention;
in the figure, 1, a control assembly; 11. a control assembly housing; 12. a power input; 13. a limiting structure; 131. a ratchet wheel; 132. positioning seats; 133. a pin rod; 134. a return spring; 14. a bearing; 15. a rotating shaft; 2. a motion assembly; 21. a motion block I; 211. a first moving block shell; 212. a first rack; 213. a first slide rail; 22. a second motion block; 221. a second motion block shell; 222. a second rack; 223. a second slide rail; 3. positioning nails; 41. positioning a wrench; 42. controlling the wrench; 421. a grip; 422. a clamping opening.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below by specific embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and other advantages and effects of the present invention can be easily understood by those skilled in the art from the disclosure of the present specification. The present invention can be implemented or applied by other different specific embodiments, and the features in the following embodiments and embodiments can be combined with each other without conflict, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
Example 1
As shown in fig. 1, the mechanical external fracture reduction device of the present embodiment includes a control component 1, a motion component 2 and a positioning nail 3; the control assembly 1 comprises a limiting structure 13; the limiting structure 13 is arranged inside the control assembly 1; the motion assembly 2 comprises a motion block I21 and a motion block II 22; the first motion block 21 and the second motion block 22 are respectively arranged at two sides of the control assembly 1 and connected with the control assembly 1; the positioning nails 3 are respectively arranged inside the first moving block 21 and the second moving block 22 and are respectively connected with the first moving block 21 and the second moving block 22.
The control assembly 1 further comprises a control assembly housing 11, a power input end 12, a bearing 14 and a rotating shaft 15.
The position-limiting structure 13 includes a ratchet 131, a positioning seat 132, a pin 133 and a rotary spring 134.
The first motion block 21 comprises a first motion block shell 211, a first rack 212 and a first slide rail 213.
The second motion block 22 includes a second motion block housing 221, a second rack 222 and a second slide rail 223.
The positioning nail 3 comprises a threaded rod and a nail cap.
Example 2
As shown in fig. 2 to 4, the following technical features are specifically set on the basis of embodiment 1 for this embodiment:
the control component shell 11 is a square shell, the top of the control component shell is provided with a first through hole used for exposing the power input end 12, and the two sides of the control component shell are provided with second through holes used for installing a first moving block 21 and a second moving block 22; the power input end 12 is of a columnar structure, one end of the power input end is of a hexagonal prism structure, the other end of the power input end is of a gear structure, and a round hole for mounting the bearing 14 is formed in the end face of the gear structure; the rotating shaft 15 has a cylindrical structure.
The limiting structure 13 is arranged in the middle of the power input end 12 and is fixedly connected with the power input end 12; the rotating shaft 15 is arranged at the inner center of the control assembly shell 11 and is fixedly connected with the control assembly shell 11; the bearing 14 is inserted with the rotating shaft 15; the power input end 12 is inserted into the bearing 14; the power input 12 is free to rotate about a shaft 15 and may be locked using a stop 13.
The positioning seat 132 is arranged on the inner side wall of the control assembly shell 11 and is fixedly connected with the control assembly shell 11; the pin rod 133 is rotatably connected with the positioning seat 132; the ratchet wheel 131 is arranged in the middle of the power input end 12 and is fixedly connected with the power input end 12; one end of a rotary spring 134 is fixedly connected with the pin rod 133, and the other end is fixedly connected with the control assembly shell 11; the ratchet wheel 131 uses its own structural characteristics to cooperate with the pin 133 so that the power input end 12 can only rotate in one direction.
Example 3
As shown in fig. 5 to 8, the following technical features are specifically set on the basis of embodiment 2 for this embodiment:
the first motion block shell 211 is of a rectangular shell structure, the middle part of the first motion block shell is provided with a first threaded hole for installing the positioning nail 3, and the side surface of the first motion block shell is provided with a rectangular hole for installing the first sliding rail 213; and the first sliding grooves are formed in the two side walls of the first rack 212, which are in contact with the tooth-shaped surface.
The first rack 212 is arranged on the side wall of the first moving block shell 211 and is integrally connected with the first moving block shell 211; the first sliding rail 213 is arranged inside the first moving block shell 211 and is fixedly connected with the first moving block shell 211; the first rack 212 and the first slide rail 213 are arranged on the same side of the first moving block shell 211.
The second moving block shell 221 is of a rectangular shell structure, the middle part of the second moving block shell is provided with a second threaded hole for mounting the positioning nail 3, and the side surface of the second moving block shell is provided with a rectangular hole for mounting the second sliding rail 223; and two sliding grooves II are formed in the two side walls of the second rack 222, which are in contact with the tooth-shaped surface.
The second rack 222 is arranged on the side wall of the second motion block shell 221 and is integrally connected with the second motion block shell 221; the second sliding rail 223 is arranged inside the second moving block shell 221 and is fixedly connected with the second moving block shell 221; the second rack 222 and the second slide rail 223 are disposed on the same side of the second moving block casing 221.
The first rack 212 penetrates through the control assembly shell 11 and then is in sliding connection with the second sliding rail 223; the second rack 222 penetrates through the control assembly shell 11 and then is connected with the first sliding rail 213 in a sliding manner; the first rack 212 and the second rack 222 are meshed with the gear structure of the power input end 12; when the power input end 12 is rotated, the gear structure drives the first rack 212 and the second rack 222 to slide, so that the first moving block 21 and the second moving block 22 move relatively.
The nail cap is cylindrical structure, and one end sets up regular hexagon hole, and the other end and threaded rod body coupling.
The positioning nails 3 are respectively arranged in the first threaded holes and the second threaded holes; and after the positioning nail 3 respectively penetrates through the first threaded hole and the second threaded hole, the positioning nail is respectively fixed with the two broken bones through threads, and then the power input end 12 is rotated to enable the first moving block 21 and the second moving block 22 to move relatively, so that the two broken bones are driven to be separated.
Example 4
As shown in fig. 9 to 11, the following technical features are added to embodiment 3 for this embodiment:
a positioning wrench for tightening the positioning nail 3 and a control wrench for rotating the power input end 12 are provided.
The positioning wrench is of an L-shaped hexagonal prism structure and is matched with a regular hexagonal hole in the nut cap of the positioning nail 3.
The control wrench comprises a grip 421 and a grip 422.
The handle 421 is an L-shaped cylindrical structure; the clamping opening 422 is a cylindrical structure.
One end of the clamping port 422 is integrally connected with the grip 421, and the other end is provided with a hexagonal hole matched with the hexagonal structure of the power input end 12.
The above description of the embodiments is only for the understanding of the present invention. It should be noted that modifications could be made to the invention without departing from the principle of the invention, which would also fall within the scope of the claims of the invention.
Claims (10)
1. A mechanical external fracture repositor comprises a control component, a motion component and a positioning nail; the control assembly is characterized by comprising a limiting structure; the limiting structure is arranged in the control assembly; the motion assembly comprises a motion block I and a motion block II; the first motion block and the second motion block are respectively arranged on two sides of the control assembly and connected with the control assembly; the first motion block is connected with the second motion block; the positioning nails are respectively arranged inside the first motion block and the second motion block and are respectively connected with the first motion block and the second motion block.
2. The mechanical external fracture repositor of claim 1, wherein the control assembly further comprises a control assembly housing, a power input end, a bearing and a shaft;
preferably, the control assembly shell is a square shell, the top of the control assembly shell is provided with a first through hole used for exposing the power input end, and the two sides of the control assembly shell are provided with second through holes used for installing the first moving block and the second moving block; the power input end is of a columnar structure, one end of the power input end is of a hexagonal prism structure, the other end of the power input end is of a gear structure, and a round hole for mounting a bearing is formed in the end face of the gear structure; the rotating shaft is of a cylindrical structure;
preferably, the limiting structure is arranged in the middle of the power input end and is fixedly connected with the power input end; the rotating shaft is arranged in the center of the interior of the control assembly shell and is fixedly connected with the control assembly shell; the bearing is inserted with the rotating shaft; the power input end is inserted into the bearing; the power input end rotates freely by taking the rotating shaft as a center and can be locked by using a limiting structure.
3. The mechanical external fracture repositor according to claim 2, wherein the limiting structure comprises a ratchet, a positioning seat, a pin rod and a rotary spring;
preferably, the positioning seat is arranged on the inner side wall of the control assembly shell and is fixedly connected with the control assembly shell; the pin rod is rotatably connected with the positioning seat; the ratchet wheel is arranged in the middle of the power input end and is fixedly connected with the power input end; one end of the rotary spring is fixedly connected with the pin rod, and the other end of the rotary spring is fixedly connected with the control assembly shell; the ratchet wheel is matched with the pin rod by applying the self structural characteristic, so that the power input end can only rotate in one direction.
4. The mechanical external fracture repositor according to claim 3, wherein the first motion block comprises a first motion block shell, a first rack and a first sliding rail;
preferably, the first motion block shell is of a rectangular shell structure, a first threaded hole for mounting a positioning nail is formed in the middle of the first motion block shell, and a rectangular hole for mounting a first sliding rail is formed in the side face of the first motion block shell; and the first sliding grooves are formed in the two side walls of the first rack, which are in contact with the tooth-shaped surface.
5. The external mechanical fracture reduction device as set forth in claim 4, wherein the first rack is disposed on a sidewall of the first moving block housing and integrally connected with the first moving block housing; the first sliding rail is arranged inside the first moving block shell and fixedly connected with the first moving block shell; the first rack and the first slide rail are arranged on the same side of the first moving block shell.
6. The mechanical external fracture repositor according to claim 5, wherein the second motion block comprises a second motion block housing, a second rack and a second slide rail;
preferably, the second motion block shell is of a rectangular shell structure, the middle part of the second motion block shell is provided with a second threaded hole for mounting a positioning nail, and the side surface of the second motion block shell is provided with a rectangular hole for mounting a second sliding rail; and two sliding grooves II are formed in the two side walls of the second rack, which are in contact with the tooth-shaped surface.
7. The mechanical external fracture repositor according to claim 6, wherein the second rack is arranged on the side wall of the second motion block housing and integrally connected with the second motion block housing; the second sliding rail is arranged inside the second moving block shell and is fixedly connected with the second moving block shell; the second rack and the second slide rail are arranged on the same side of the second moving block shell.
8. The external mechanical fracture repositor of claim 7, wherein the positioning pin comprises a threaded rod and a pin cap;
preferably, the nail cap is of a cylindrical structure, one end of the nail cap is provided with a regular hexagonal hole, and the other end of the nail cap is integrally connected with the threaded rod;
preferably, the positioning nails are respectively arranged in the first threaded hole and the second threaded hole; and after passing through the first threaded hole and the second threaded hole respectively, the positioning nails are fixed with the two broken bones through threads respectively, and then the power input end is rotated to enable the first moving block and the second moving block to move relatively, so that the two broken bones are driven to be separated.
9. The external mechanical fracture repositor of claim 8, wherein a positioning wrench for tightening the positioning nail and a control wrench for rotating the power input end are provided;
preferably, the positioning wrench is of an L-shaped hexagonal prism structure and is matched with a regular hexagonal hole in the positioning nail cap.
10. The external mechanical fracture repositor of claim 9, wherein the control wrench comprises a grip and a clamping port;
preferably, the handle is of an L-shaped cylindrical structure; the clamping opening is of a cylindrical structure;
preferably, one end of the clamping port is integrally connected with the handle, and the other end of the clamping port is provided with a hexagonal hole matched with the hexagonal structure of the power input end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110907235.9A CN113520557A (en) | 2021-08-09 | 2021-08-09 | Mechanical external fracture repositor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110907235.9A CN113520557A (en) | 2021-08-09 | 2021-08-09 | Mechanical external fracture repositor |
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| Publication Number | Publication Date |
|---|---|
| CN113520557A true CN113520557A (en) | 2021-10-22 |
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ID=78090784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110907235.9A Pending CN113520557A (en) | 2021-08-09 | 2021-08-09 | Mechanical external fracture repositor |
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| CN (1) | CN113520557A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5454810A (en) * | 1990-02-05 | 1995-10-03 | Pohl; Anthony P. | External fixation device |
| CN200942116Y (en) * | 2006-08-16 | 2007-09-05 | 李西成 | Bone holding forceps for fracture reduction |
| RU2012148458A (en) * | 2012-11-14 | 2014-05-20 | Федеральное государственное бюджетное учреждение "Саратовский научно-исследовательский институт травматологии и ортопедии" Министерства здравоохранения Российской Федерации (ФГБУ "СарНИИТО" Минздрава России) | REPOSITION-FIXING DEVICE FOR INTRAMEDULAR OSTEOSYNTHESIS OF TUBULAR BONES |
| CN109464184A (en) * | 2019-01-15 | 2019-03-15 | 河南省中医院（河南中医药大学第二附属医院） | Limb long bone diaphysis fracture reduction device |
| CN110393582A (en) * | 2019-08-26 | 2019-11-01 | 河北医科大学第三医院 | A kind of external bone-fracture opening repositor |
| CN111513792A (en) * | 2020-05-07 | 2020-08-11 | 马洋洋 | Use method of medical cardiology leak-proof pressurizing instrument |
-
2021
- 2021-08-09 CN CN202110907235.9A patent/CN113520557A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5454810A (en) * | 1990-02-05 | 1995-10-03 | Pohl; Anthony P. | External fixation device |
| CN200942116Y (en) * | 2006-08-16 | 2007-09-05 | 李西成 | Bone holding forceps for fracture reduction |
| RU2012148458A (en) * | 2012-11-14 | 2014-05-20 | Федеральное государственное бюджетное учреждение "Саратовский научно-исследовательский институт травматологии и ортопедии" Министерства здравоохранения Российской Федерации (ФГБУ "СарНИИТО" Минздрава России) | REPOSITION-FIXING DEVICE FOR INTRAMEDULAR OSTEOSYNTHESIS OF TUBULAR BONES |
| CN109464184A (en) * | 2019-01-15 | 2019-03-15 | 河南省中医院（河南中医药大学第二附属医院） | Limb long bone diaphysis fracture reduction device |
| CN110393582A (en) * | 2019-08-26 | 2019-11-01 | 河北医科大学第三医院 | A kind of external bone-fracture opening repositor |
| CN111513792A (en) * | 2020-05-07 | 2020-08-11 | 马洋洋 | Use method of medical cardiology leak-proof pressurizing instrument |
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