CN111803195A - Non-straddle type external fixator for treating distal radius fracture - Google Patents
Non-straddle type external fixator for treating distal radius fracture Download PDFInfo
- Publication number
- CN111803195A CN111803195A CN202010794122.8A CN202010794122A CN111803195A CN 111803195 A CN111803195 A CN 111803195A CN 202010794122 A CN202010794122 A CN 202010794122A CN 111803195 A CN111803195 A CN 111803195A
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- Prior art keywords
- connecting rod
- external fixator
- rod
- distal radius
- door
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- Pending
Links
- 206010037802 Radius fracture Diseases 0.000 title claims abstract description 15
- 241001079814 Symphyotrichum pilosum Species 0.000 claims abstract description 9
- 235000004224 Typha angustifolia Nutrition 0.000 claims abstract description 9
- 230000000149 penetrating effect Effects 0.000 claims abstract description 8
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 5
- 210000003857 wrist joint Anatomy 0.000 abstract description 5
- 206010017076 Fracture Diseases 0.000 description 20
- 208000010392 Bone Fractures Diseases 0.000 description 18
- 210000000988 bone and bone Anatomy 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 206010002091 Anaesthesia Diseases 0.000 description 1
- 208000024779 Comminuted Fractures Diseases 0.000 description 1
- 206010053206 Fracture displacement Diseases 0.000 description 1
- 208000002565 Open Fractures Diseases 0.000 description 1
- 208000001164 Osteoporotic Fractures Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000037182 bone density Effects 0.000 description 1
- 230000004064 dysfunction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003414 extremity Anatomy 0.000 description 1
- 238000002594 fluoroscopy Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 210000000236 metacarpal bone Anatomy 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
- 210000000707 wrist Anatomy 0.000 description 1
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Classifications
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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
- A61B17/64—Devices extending alongside the bones to be positioned
- A61B17/6425—Devices extending alongside the bones to be positioned specially adapted to be fitted across a bone joint
-
- 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
- A61B17/64—Devices extending alongside the bones to be positioned
- A61B17/6441—Bilateral fixators, i.e. with both ends of pins or wires clamped
-
- 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
- A61B17/64—Devices extending alongside the bones to be positioned
- A61B17/645—Devices extending alongside the bones to be positioned comprising a framework
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- 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 non-straddle joint type external fixator for treating distal radius fracture, which comprises two main radius nails, a portal frame, a first connecting rod, a second connecting rod, a third connecting rod and a plurality of penetrating fixing needles, wherein the upper ends of the two main radius nails are connected with the first connecting rod through nail rod clamps, the transverse part of the portal frame is connected with the front end of the first connecting rod through rod clamps, the two ends of the second connecting rod are respectively connected with one longitudinal part of the portal frame and the first connecting rod through the rod clamps, the two ends of the third connecting rod are respectively connected with the other longitudinal part of the portal frame and the first connecting rod through the rod clamps, and the two ends of each penetrating fixing needle are respectively connected with the two longitudinal parts of the portal frame through the rod clamps. The external fixator has the advantages that the external fixator is used for operation without joint crossing, the wrist joint and the fingers of a patient are not limited to move, and the external fixator can move instantly and bear partial functions, so that the comfort degree of the patient is improved, the life burden of the patient is reduced, and the rehabilitation process is accelerated.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a non-trans-articular external fixator for treating distal radius fracture.
Background
The distal radius fracture is a fracture within 2-3cm from the distal radius joint surface, and is mainly caused when a patient falls down and has palm support, and the fracture is easy to occur because the fracture is a mechanically weak part at the junction of cancellous bone and the compact bone. Distal radius fractures are multiple, common fractures with an incidence of 1/10 for all fractures.
According to the violence direction, the fracture position and the fracture displacement direction, the fracture can be generally divided into a stretching type, a bending type, a dorsal margin fracture and a palmar margin fracture; according to whether the device is communicated with the outside, the device is divided into closeness and openness; more than three pieces of fracture are called comminuted. For the straight and the bending fracture, the current treatment methods comprise the external fixation of a manual reduction splint, the internal fixation of an incised reduction steel plate and the fixation of a manual reduction external fixator, and the three methods have advantages and disadvantages and different indications respectively.
The external fixator has certain advantages for treating open fracture, comminuted fracture and osteoporotic fracture, but the currently used external fixators are all designed to be across joints, the proximal end is fixed on the radial shaft, and the distal end is fixed on the metacarpal bone. During the treatment period, the affected limb of the patient can not be used normally, which brings inconvenience to life, and meanwhile, the recovery time in the later period is longer and even partial dysfunction is left because the wrist joint and the fingers of the patient are braked for a long time. In addition, since the metacarpal nail is a screw nail, there may be a case where the tendon is abraded.
Disclosure of Invention
The invention aims to provide a non-joint-spanning type external fixator for treating distal radius fracture, aiming at the prior technical situation, the external fixator is used for performing operation without joint spanning, the movement of wrist joints and fingers of a patient is not limited, the wrist joints and the fingers can move instantly and bear partial functions, the comfort level of the patient is improved, the life burden of the patient is lightened, and the rehabilitation process is accelerated.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a non-straddle joint formula external fixator of treatment radius distal end fracture, including two radius main nail, door type frame, first connecting rod, the second connecting rod, the third connecting rod and a plurality of fixed needle that runs through, two radius main nail upper ends all are connected with first connecting rod through the nail pole clamp, the horizontal part of door type frame passes through the pole clamp and is connected with first connecting rod front end, the second connecting rod both ends all are connected with one of them longitudinal part of door type frame, first connecting rod respectively through the pole clamp, the third connecting rod both ends all are connected with another longitudinal part of door type frame, first connecting rod respectively through the pole clamp, each runs through fixed needle both ends and all is connected with two longitudinal parts of door type frame respectively through the pole clamp.
Further, the door type frame comprises two L-shaped brackets, and the transverse parts of the two L-shaped brackets are hinged and locked through bolt assemblies.
Further, the number of the penetrating fixing needles is at least 3.
Furthermore, the penetration fixing pin is a Kirschner wire with the diameter of 2 mm.
Furthermore, the main radius nail is a stainless steel threaded nail.
Furthermore, the first connecting rod, the second connecting rod and the third connecting rod are all made of carbon fiber materials.
Furthermore, the door-shaped frame, the nail rod clamp, the rod clamp and the needle rod clamp are all made of aluminum alloy materials. The invention has the beneficial effects that:
1. compared with the existing mode of bilateral fixation of the trans-articular external fixator, the external fixator is used for surgery without trans-articular, the wrist joint and the finger of the patient are not limited to move, and can move immediately and bear partial functions, so that the comfort level of the patient is improved, the life burden of the patient is reduced, the rehabilitation process is accelerated, the acceptance of the patient and the doctor is improved, the external fixator is easy to popularize and use, and good social benefit and economic benefit are achieved;
2. the external fixator directly utilizes the structure of the bone to maintain fixation, penetrates through the two sides and directly acts on the fracture part, and the fixation is relatively more direct and reliable.
Drawings
FIG. 1 is a schematic structural view of an external fixator according to the present invention;
description of the labeling: 1. radius main nail, 2, first connecting rod, 3, nail rod clamp, 4, L-shaped support, 5, bolt component, 6, rod clamp, 7, needle rod clamp, 8, through fixing needle, 9, second connecting rod, 10, third connecting rod.
Detailed Description
The invention will be further explained with reference to the drawings.
Referring to fig. 1, a non-transarticular external fixator for treating distal radius fracture includes two main radius nails 1, a portal frame, a first connecting rod 2, a second connecting rod 9, a third connecting rod 10, and a plurality of through fixing pins 8, and the specific connection structure is as follows:
the upper ends of two main radius nails 1 are connected with a first connecting rod 2 through nail rod clamps 3, the transverse part of a door-shaped frame is connected with the front end of the first connecting rod 2 through rod clamps 6, the two ends of a second connecting rod 9 are respectively connected with one longitudinal part of the door-shaped frame and the first connecting rod 2 through the rod clamps 6, the two ends of a third connecting rod 10 are respectively connected with the other longitudinal part of the door-shaped frame and the first connecting rod 2 through the rod clamps 6, and each penetrating through fixing needle 8 is respectively connected with the two longitudinal parts of the door-shaped frame through a needle rod clamp 7. The nail rod clamp 3, the rod clamp 6 and the needle rod clamp 7 are the same as the clamp used by the existing external fixator in structure, the function of preliminary clamping is achieved through springs, after the fixation is confirmed to be good, the nail rod clamp is locked through bolts, and the difference of different clamps only lies in the size of the clamping size.
Preferably, the portal frame comprises two L-shaped brackets 4, and the transverse parts of the two L-shaped brackets 4 are hinged and locked through a bolt assembly 5. When in use, after the bolt component 5 is loosened, the two L-shaped brackets 4 can be opened or closed relatively, so that the portal frame is suitable for patients with arms of different thicknesses.
The radius main nail 1 is a stainless steel threaded nail, the door-shaped frame, the nail rod clamp 3, the rod clamp 6 and the needle rod clamp 7 are all made of aluminum alloy materials, and the first connecting rod 2, the second connecting rod 9 and the third connecting rod 10 are all made of carbon fiber materials, so that the external fixator has the characteristics of light weight and stability.
The number of the penetrating fixing pins 8 is at least 3, and optionally, 2 mm-diameter Kirschner wires are adopted as the penetrating fixing pins 8. The fracture block is fixed on a plane by a Kirschner wire, the needle inserting part is arranged below a joint surface, the bone density is high, the fixation is stable, two ends of the Kirschner wire are connected with the door-shaped frame, and the door-shaped frame, the first connecting rod 2, the second connecting rod 9, the door-shaped frame, the first connecting rod 2 and the third connecting rod 10 form a stable triangular structure, so that the effects of more stability and effective fixation are achieved.
The process of using the external fixator for operation is as follows:
resetting the fracture under anesthesia, then performing fluoroscopy and confirming whether the fracture is completely reset, and then placing 1 temporary Kirschner wire for primary fixation;
two main radius nails 1 are placed on the radius shaft, the main radius nails 1 are positioned at the near end of the fracture, at least 3 Kirschner wires are placed at the fracture position, and the Kirschner wires are inserted from the palm side of the wrist and penetrate through the bone below the joint surface at the far end of the fracture;
clamping the portal frame, the first connecting rod 2, the second connecting rod 9 and the third connecting rod 10, adjusting the positions, and then locking the clamp;
and (5) performing perspective again and confirming whether the position is changed or not, and if so, performing adjustment again.
After the fracture is healed, the external fixator is removed, the normal function can be completely recovered, excessive rehabilitation exercise is generally not needed, and the time required by rehabilitation is halved.
It should be understood that the above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the invention, therefore, all equivalent changes in the principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A non-trans-articular external fixator for treating distal radius fracture is characterized in that: the two main radial nails are connected with the first connecting rod through nail rod clamps at the upper ends of the two main radial nails, the transverse part of the door-shaped frame is connected with the front end of the first connecting rod through a rod clamp, the two ends of the second connecting rod are respectively connected with one longitudinal part of the door-shaped frame through the rod clamp, the first connecting rod is connected, the two ends of the third connecting rod are respectively connected with the other longitudinal part of the door-shaped frame through the rod clamp, the first connecting rod is connected, and the two ends of each penetrating fixing needle are respectively connected with the two longitudinal parts of the door-shaped frame through the rod clamp.
2. The non-trans-articular external fixator for treating distal radius fractures according to claim 1 further comprising: the door-shaped frame comprises two L-shaped supports, and the transverse parts of the two L-shaped supports are hinged and locked through bolt assemblies.
3. The non-transarticular external fixator for treating distal radius fractures according to claim 1 or 2, wherein: the number of the penetrating fixing needles is at least 3.
4. The non-trans-articular external fixator for treating distal radius fractures according to claim 2, wherein: the fixing needle is a Kirschner wire with the diameter of 2 mm.
5. The non-trans-articular external fixator for treating distal radius fractures according to claim 1 further comprising: the radius main nail is a stainless steel threaded nail.
6. The non-trans-articular external fixator for treating distal radius fractures according to claim 5, wherein: the first connecting rod, the second connecting rod and the third connecting rod are all made of carbon fiber materials.
7. The non-trans-articular external fixator for treating distal radius fractures according to claim 1 further comprising: the door-shaped frame, the nail rod clamp, the rod clamp and the needle rod clamp are all made of aluminum alloy materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010794122.8A CN111803195A (en) | 2020-08-10 | 2020-08-10 | Non-straddle type external fixator for treating distal radius fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010794122.8A CN111803195A (en) | 2020-08-10 | 2020-08-10 | Non-straddle type external fixator for treating distal radius fracture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111803195A true CN111803195A (en) | 2020-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010794122.8A Pending CN111803195A (en) | 2020-08-10 | 2020-08-10 | Non-straddle type external fixator for treating distal radius fracture |
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| Country | Link |
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| CN (1) | CN111803195A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023143149A1 (en) * | 2022-01-25 | 2023-08-03 | 陈聚伍 | Intramedullary fixing system for fracture end |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2123296U (en) * | 1992-03-06 | 1992-12-02 | 李培军 | Cervical splint with adjustable means |
| CN2750791Y (en) * | 2004-07-22 | 2006-01-11 | 汤福刚 | Minimally invasive double-needle external fixing device for tibial fracture |
| CN103445832A (en) * | 2013-09-06 | 2013-12-18 | 江苏广济医疗科技有限公司 | Activity-inertia combined adjusting control outer fixer for distal radius fracture |
| CN203425025U (en) * | 2013-09-06 | 2014-02-12 | 江苏广济医疗科技有限公司 | Knee joint dynamic and static combination regulating external fixator |
| CN203447343U (en) * | 2013-09-06 | 2014-02-26 | 江苏广济医疗科技有限公司 | Proximal humerus T type external fixator |
| CN107049451A (en) * | 2017-03-20 | 2017-08-18 | 介之良（北京）医疗科技有限公司 | A kind of locking external fixer for treatment of distal radius fracture |
-
2020
- 2020-08-10 CN CN202010794122.8A patent/CN111803195A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2123296U (en) * | 1992-03-06 | 1992-12-02 | 李培军 | Cervical splint with adjustable means |
| CN2750791Y (en) * | 2004-07-22 | 2006-01-11 | 汤福刚 | Minimally invasive double-needle external fixing device for tibial fracture |
| CN103445832A (en) * | 2013-09-06 | 2013-12-18 | 江苏广济医疗科技有限公司 | Activity-inertia combined adjusting control outer fixer for distal radius fracture |
| CN203425025U (en) * | 2013-09-06 | 2014-02-12 | 江苏广济医疗科技有限公司 | Knee joint dynamic and static combination regulating external fixator |
| CN203447343U (en) * | 2013-09-06 | 2014-02-26 | 江苏广济医疗科技有限公司 | Proximal humerus T type external fixator |
| CN107049451A (en) * | 2017-03-20 | 2017-08-18 | 介之良（北京）医疗科技有限公司 | A kind of locking external fixer for treatment of distal radius fracture |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023143149A1 (en) * | 2022-01-25 | 2023-08-03 | 陈聚伍 | Intramedullary fixing system for fracture end |
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Application publication date: 20201023 |