CN105232124A - Bare-handed nail implantation external fixation system - Google Patents
Bare-handed nail implantation external fixation system Download PDFInfo
- Publication number
- CN105232124A CN105232124A CN201510660843.9A CN201510660843A CN105232124A CN 105232124 A CN105232124 A CN 105232124A CN 201510660843 A CN201510660843 A CN 201510660843A CN 105232124 A CN105232124 A CN 105232124A
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- Prior art keywords
- nail
- gear pair
- fixation system
- external fixation
- thread
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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
-
- 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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- 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 bare-handed nail implantation external fixation system, which is composed of an external fixing bracket, a gear pair mechanism, a bone nail and a matched rotary handle, wherein the external fixing bracket is integrally formed as a three-sided enclosed jaw-shaped structure, and the external fixing bracket is composed of an upper arc-shaped rod, a lower arc-shaped rod, a threaded vertical rod and a threaded casing; the gear pair mechanism is composed of a planetary gear pair that a big gear is driven by a small gear, and three bearings are configured inside the gear pair mechanism, so that the gear pair mechanism has an effect of triple torque amplification; the bone nail is a high-strength metal nail which has a self-tapped double-threaded head at the top, the bone nail is connected to a coarse thread which is used for fixing bone substance and the middle is provided with a pipe thread which is matched with the threaded casing. The external fixation system disclosed by the invention is designed for temporary fixation operations which are required for traumatic fractures in the case of natural disasters in the field or under severe environment of wars; the system can be assembled simply and can be operated by a single person without a power supply, and the system can be repeatedly used; by virtue of the labor-saving gear pair mechanism, nail implantation can be easily completed even by women; and the external fixation system, after being disassembled, is small in volume, light and convenient, and is easy to carry.
Description
Technical field
The present invention relates to a kind of external fixation system, under especially one is used for field extreme environment, pure assembled by hand puts nail external fixation system.
Background technology
Under wild environment, due to the limb fracture wound that the situation such as Sudden Natural Disasters, war causes, in order to avoid the secondary insult that the wounded cause due to collision in transfer process, or long-time bone dislocation causes necrosis etc. to the wound of soft tissue, need to carry out the instant fixing of fracture site to the wounded.At present for limb fracture wound, generally clinically adopt built-in Interal fixation or externally put nail external fixation system, for fracture, there is good recovery effects, but under lowered in field environment, owing to lacking due appointed condition, it is very difficult for carrying out that such fixation becomes to the wounded.
The fixed form of the temporary fixed employing in existing field is carry out plywood clamping to wounded's fracture site mostly, and this mode can only avoid the collision of transfer process, can not carry out interim rectification and recovery for fracture site place, is very unfavorable to wounded's recovery in the future.Also employing is had to put the operation of nail external fixation system, insert nail difficulty comparatively speaking larger, use electric drill certainly can easily by nail implantation, but in the wild under adverse circumstances, the natural material such as sewage, sandy soil can make electric drill lose efficacy, so use the active nail equipment dependabilities of putting such as electric drill low, and quality is large, volume is large, not portable, be afraid of to fall to touch, power supply flying power is difficult to ensure.Therefore adopt a dependable performance, simple to operate, be easy to carry about with one, affect little external auxiliary free-handly put nail external fixation system by natural environment mal-condition, to raising wounded survival, to reduce disability rate significant.
Summary of the invention
In order to fill up the free-hand blank of putting nail external fixation system of the temporary fixed operation of current wild environment trauma fracture, the invention provides one and put nail external fixation system for assembled by hand pure under field extreme environment, this system is easy after dismantling to be easy to carry about with one, single can completing fast is assembled and puts tack operation, there is moment amplification function, even women operates or puts nail continuously, also too large muscle power can not be expended, this system adopts machine driving completely, without the need to power supply, little to environmental sensibility, be applicable to various severe environmental conditions.
The present invention is realized by following technological means: described system is by exterior fixation bracket, gear pair mechanism, nail and supporting rotating handles composition, described exterior fixation bracket entirety becomes three bandings to close tiger's jaw shape, by upper and lower two bows, threaded montant, and threaded sleeve composition, respectively with female thread on described upper and lower two bows, can with screw thread montant two ends threaded engagement, by rotating screw thread montant, lower arcuate bar is driven to produce the stretching motion of vertical direction by screw thread, control tiger's jaw height, arc lower bar tail end has thickening supporting seat, as base effect during use, upper bow rear is with hollowing out inside groove, projection in the middle part of described threaded sleeve can be snapped in inside groove, threaded sleeve is made to be fixed in exterior fixation bracket, twisted shape hands handle is had in the middle part of described screw thread montant, frictional force can be increased.Have projection in the middle part of described threaded sleeve, can snap in bow inside groove, described threaded sleeve, with gas thread, can coordinate with nail gas thread.
Described gear pair mechanism drives the planetary gear pair of gear wheel to form by pinion, top driving shaft drives intermediate speed pinion, intermediate speed pinion drives 3 planet pinions, planet pinion drives inner tooth gearwheel, inner tooth gearwheel drives bottom driven shaft, complete moment amplification transmission, described gear pair mechanism is equipped with 3 rolling bearings, and outside has been the overcoat of support and sealing function; Described driving shaft head is outer-hexagonal, coordinates with rotating handles, and described driven shaft outfan is interior hexagonal, coordinates with nail.
Described nail is high duty metal nail, and there is the self tapping cutting edge of array axis at two screw thread place, top, and be connected the wide pitch thread being used for fixing sclerotin, middle part is the gas thread nail tail end coordinated with threaded sleeve is outer-hexagonal, can coordinate with described gear pair driven shaft.
Described free-hand nail external fixation system of putting is by twisting rotating handles, the secondary driving shaft of driven gear, torsion completes 3 times of torsion and amplifies in the transmission of planet gear pair, nail is passed to by driven shaft, nail is coordinated with threaded sleeve by gas thread, there is provided downward counteracting force by exterior fixation bracket entirety, make nail produce the torsion be rotated down.If from the torsion of rotating handles input 1KN, the torsion of 3KN can be obtained on nail top after torsion enlarger.
By above-mentioned technological means of the present invention, free-hand nail external fixation system of putting is guaranteeing under the prerequisite adapting to field extreme environment, can realize nail light, accurately insert, and do not rely on active system, dismounting is simple, easy to carry, the demand of the transfer of wild environment high maneuverability and Rapid Implementation operation can be met.A dependable performance, affects by natural environment mal-condition and little externally auxiliaryly free-handly puts nail external fixation system, and to raising wounded survival, to reduce disability rate significant.
Accompanying drawing explanation
Fig. 1 is that free-hand putting of the present invention follows closely external fixation system axonometric chart.
Fig. 2 is that free-hand putting of the present invention follows closely external fixation system front view.
Fig. 3 is arc lower bar axonometric chart of the present invention.
Fig. 4 is threaded montant axonometric chart of the present invention.
Fig. 5 is upper bow axonometric chart of the present invention.
Fig. 6 is threaded sleeve axonometric chart of the present invention.
Fig. 7 is gear pair mechanism of the present invention exploded view.
Fig. 8 is nail axonometric chart of the present invention.
Fig. 9 is rotating handles axonometric chart of the present invention.
In figure, 1---arc lower bar, 2---threaded montant, 3---upper bow, 4---threaded sleeve, 5---nail, 6---gear pair mechanism, 7---rotating handles, 8---arc lower bar screw thread place, 9---arc lower bar thickeies supporting base, 10---screw thread montant tail end screw thread, 11---screw thread montant Flos Cannabis handle, 12---upper bow screw thread place, 13---upper bow inside groove, 14---projection in the middle part of threaded sleeve, 15---threaded sleeve gas thread, 16---gear pair driving shaft, 17---gear pair driven shaft, 18---gear pair pinion, 19---gear pair 3 planet pinions, 20---gear pair gear wheel, 21---gear pair 3 different size bearings, 22---gear pair overcoat, 23---the wide pitch thread of nail, 24---nail gas thread.
Detailed description of the invention
Parts can be dismantled in the small-sized storage case of threading one or medical bag by this free-hand putting when nail external fixation system does not use, and when using assembling, are taken out by all parts, carry out assembling and put nail.
One is free-hand puts nail external fixation system, it is characterized in that: described system is made up of exterior fixation bracket, gear pair mechanism 6, nail 5 and supporting rotating handles 7, described exterior fixation bracket entirety becomes three bandings to close tiger's jaw shape, is made up of arc lower bar 1, montant 2, upper bow 3 and threaded sleeve 4; Respectively with female thread on described arc lower bar 1, montant 2, arc lower bar 1 tail end has thickening supporting seat 9, and described arc lower bar 1 section is provided with the female pore 8 of band; Described montant 2 tail end is external screw thread cylinder 10, and middle part is twisted shape handle 11; Described upper bow 3 rear, with hollowing out inside groove 13, can coordinate with threaded sleeve 4, and described upper bow 3 sections are provided with the female pore 12 of band; Described threaded sleeve 4 inside is gas thread 15, and there is the projection 14 for coordinating with upper bow inside groove 13 at middle part; Described nail 5 is high duty metal nails, and top has self tapping double-thread head, and be connected the wide pitch thread 23 being used for fixing sclerotin, middle part is the gas thread 24 coordinated with threaded sleeve 4; Described gear pair mechanism 6 drives the planetary gear pair of gear wheel to form by pinion, top driving shaft 16 drives intermediate speed pinion 18, intermediate speed pinion 18 drives three planet pinions 19, and planet pinion 19 drives inner tooth gearwheel 20, and inner tooth gearwheel 20 drives bottom driven shaft 17.
In the present embodiment, described driven shaft 17 drives nail 5, and nail 5 is coordinated with threaded sleeve 4 by gas thread 24, provides downward counteracting force, make nail 5 produce the torsion be rotated down by exterior fixation bracket entirety.
In the present embodiment, the arc lower bar 1 of described exterior fixation bracket and upper bow 3 can coordinate with the tail end external screw thread cylinder 10 of montant 2 with female thread, by rotating screw thread montant 2, driving arc lower bar 1 and upper bow 3 to produce the stretching motion of vertical direction by screw thread, controlling tiger's jaw height.
In the present embodiment, the projection 14 in the middle part of described threaded sleeve 4 can snap in bow inside groove 13, and the gas thread 15 of described threaded sleeve 4 can coordinate with nail gas thread 24.
In the present embodiment, described gear pair mechanism 6 inner core is equipped with 3 rolling bearings 21, and outside has been the overcoat 22 of support and sealing function.
In the present embodiment, described driving shaft 16 head is outer-hexagonal, coordinates with rotating handles 7.
In the present embodiment, described driven shaft 17 outfan is interior hexagonal, coordinates with nail 5.
In the present embodiment, there is the self tapping cutting edge of array axis at double-thread head place, described nail 5 top, and nail 5 tail end is outer-hexagonal, can coordinate with described gear pair driven shaft 17.
In the present embodiment, described rotating handles 7 is round turntables, and bottom centre protruding end is hexagonal in, coordinates with described gear pair driving shaft 16.
Assembly manipulation mode is as follows: 1. first lower arcuate bar and screw thread montant are assembled up according to shown in Fig. 1 by screw thread, and by threaded sleeve tip end down, middle part projection aims at upper bow inside groove clamping; 2. unscrew montant counterclockwise, and tiger's jaw is highly in maximum (or being enough placed in tiger's jaw by the limbs for implementing fixing operation); 3. the limbs for being fixed operation being placed on arc lower bar base, keeping lower arcuate bar and screw thread montant to be in same plane, turning screw thread montant clockwise, make tiger's jaw reduced height; 4. reduce tiger's jaw high process and note adjusting pole position, the position making threaded sleeve tip aim at limbs to need into nail, until threaded sleeve props up limbs bone, and makes exterior fixation bracket be stuck on limbs securely.So far completed assembling and fixed limb step, can start to insert nail.
Put nail mode as follows: 1. take out the nail of sterilizing in advance, ailhead is put into by threaded sleeve top, until nail gas thread part contacts with casing threads, starts manual rotation and enters down; 2. manual rotation nail enters to ailhead and props up bone (from feel), again gear pair mechanism driven shaft is placed on above nail down, internal-external hexagon coordinates, finally above gear pair mechanism, place rotating handles, be rotated counterclockwise handle then nail walk downward, turn clockwise, nail is up walked; 3. when nail just enters sclerotin by skin, exterior fixation bracket can be buttressed by one hand, ensure that nail approach axis is accurate, when nail tentatively can be fixed on sclerotin, then hold up the hands of exterior fixation bracket to unclamp, then buttress gear pair mechanism, guarantee the stable drive in high torsion lower tooth wheel set.So far then can complete fixedly inserting of nail, next step can carry out free-hand dismounting of putting nail external fixation system.
Free-hand nail external fixation system dismounting mode of putting is as follows: 1. first rotating handles and gear pair mechanism are taken off, turn screw thread montant counterclockwise, lower arcuate bar distance is pulled open, tiger's jaw highly becomes greatly, until upper bow can be extracted out from threaded sleeve; 2. threaded sleeve is rotated in the counterclockwise direction and taken out by bone screw head.So far, complete free-hand nail external fixation system of putting and dismantle, nail is then firmly inserted in sclerotin, finally parts is reinstalled storage case or medical bag.
So far, the free-hand operation of putting nail external fixation system nail and inserting is completed.
Above-described embodiment is the present invention's preferably embodiment; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from spirit of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (9)
1. free-handly put nail external fixation system for one kind, it is characterized in that: described system is made up of exterior fixation bracket, gear pair mechanism (6), nail (5) and supporting rotating handles (7), described exterior fixation bracket entirety becomes three bandings to close tiger's jaw shape, is made up of arc lower bar (1), montant (2), upper bow (3) and threaded sleeve (4); Respectively with female thread on described arc lower bar (1), montant (2), arc lower bar (1) tail end has thickening supporting seat (9), and described arc lower bar (1) head section is provided with the female pore of band (8); Described montant (2) tail end is external screw thread cylinder (10), and middle part is twisted shape handle (11); Described upper bow (3) rear, with hollowing out inside groove (13), can coordinate with threaded sleeve (4), and described upper bow (3) head section is provided with the female pore of band (12); Described threaded sleeve (4) inside is gas thread (15), and there is the projection (14) for coordinating with upper bow inside groove (13) at middle part; Described nail (5) is high duty metal nail, and top has self tapping double-thread head, and be connected the wide pitch thread (23) being used for fixing sclerotin, middle part is the gas thread (24) coordinated with threaded sleeve (4); Described gear pair mechanism (6) drives the planetary gear pair of gear wheel to form by pinion, top driving shaft (16) drives intermediate speed pinion (18), intermediate speed pinion (18) drives three planet pinions (19), planet pinion (19) drives inner tooth gearwheel (20), and inner tooth gearwheel (20) drives bottom driven shaft (17).
2. basis
claimfree-hand described in 1 puts nail external fixation system, it is characterized in that: described driven shaft (17) drives nail (5), nail (5) is coordinated with threaded sleeve (4) by gas thread (24), there is provided downward counteracting force by exterior fixation bracket entirety, make nail (5) produce the torsion be rotated down.
3. basis
claimfree-hand described in 1 puts nail external fixation system, it is characterized in that: the arc lower bar (1) of described exterior fixation bracket and upper bow (3) can coordinate with the tail end external screw thread cylinder (10) of montant (2) with female thread, by rotating screw thread montant (2), drive arc lower bar (1) and upper bow (3) to produce the stretching motion of vertical direction by screw thread, control tiger's jaw height.
4. basis
claimfree-hand described in 1 puts nail external fixation system, it is characterized in that: the projection (14) at described threaded sleeve (4) middle part can snap in bow inside groove (13), and the gas thread (15) of described threaded sleeve (4) can coordinate with nail gas thread (24).
5. basis
claimfree-hand described in 1 puts nail external fixation system, it is characterized in that: described gear pair mechanism (6) inner core is equipped with 3 rolling bearings (21), and outside supports and the overcoat (22) of sealing function.
6. basis
claimfree-hand described in 1 puts nail external fixation system, it is characterized in that: described driving shaft (16) head is outer-hexagonal, coordinates with rotating handles (7).
7. basis
claimfree-hand described in 1 puts nail external fixation system, it is characterized in that: described driven shaft (17) outfan is interior hexagonal, coordinates with nail (5).
8. basis
claimfree-hand described in 1 puts nail external fixation system, it is characterized in that: there is the self tapping cutting edge of array axis at double-thread head place, described nail (5) top, and nail (5) tail end is outer-hexagonal, can coordinate with described gear pair driven shaft (17).
9. basis
claimfree-hand described in 1 puts nail external fixation system, and it is characterized in that: described rotating handles (7) is a round turntable, bottom centre protruding end is hexagonal in, coordinates with described gear pair driving shaft (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510660843.9A CN105232124A (en) | 2015-10-13 | 2015-10-13 | Bare-handed nail implantation external fixation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510660843.9A CN105232124A (en) | 2015-10-13 | 2015-10-13 | Bare-handed nail implantation external fixation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105232124A true CN105232124A (en) | 2016-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510660843.9A Pending CN105232124A (en) | 2015-10-13 | 2015-10-13 | Bare-handed nail implantation external fixation system |
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| CN (1) | CN105232124A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0287823A1 (en) * | 1987-03-25 | 1988-10-26 | Thomas Dr. Heinl | Surgical handtool |
| EP1514645A1 (en) * | 2003-09-10 | 2005-03-16 | Felo-Werkzeugfabrik Holland-Letz Gmbh | Screwdriver with torque limiting clutch |
| CN201481529U (en) * | 2009-07-31 | 2010-05-26 | 甘同敬 | Orthopaedics external fixed mount |
| US20130276598A1 (en) * | 2012-04-23 | 2013-10-24 | Eca Medical Instruments | Disposable torque limiting device with tooth belt counter |
| CN101856263B (en) * | 2009-04-07 | 2014-08-20 | 比德尔曼技术有限责任两合公司 | Tool for use with bone anchor, in particular for spinal surgery |
| CN104411259A (en) * | 2012-02-08 | 2015-03-11 | Epix整形外科股份有限公司 | Implant insertion device with continuously adjustable targeting assembly |
| CN205181463U (en) * | 2015-10-13 | 2016-04-27 | 广州聚生生物科技有限公司 | Bare -handed outer fixing system of nail that puts |
-
2015
- 2015-10-13 CN CN201510660843.9A patent/CN105232124A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0287823A1 (en) * | 1987-03-25 | 1988-10-26 | Thomas Dr. Heinl | Surgical handtool |
| EP1514645A1 (en) * | 2003-09-10 | 2005-03-16 | Felo-Werkzeugfabrik Holland-Letz Gmbh | Screwdriver with torque limiting clutch |
| CN101856263B (en) * | 2009-04-07 | 2014-08-20 | 比德尔曼技术有限责任两合公司 | Tool for use with bone anchor, in particular for spinal surgery |
| CN201481529U (en) * | 2009-07-31 | 2010-05-26 | 甘同敬 | Orthopaedics external fixed mount |
| CN104411259A (en) * | 2012-02-08 | 2015-03-11 | Epix整形外科股份有限公司 | Implant insertion device with continuously adjustable targeting assembly |
| US20130276598A1 (en) * | 2012-04-23 | 2013-10-24 | Eca Medical Instruments | Disposable torque limiting device with tooth belt counter |
| CN205181463U (en) * | 2015-10-13 | 2016-04-27 | 广州聚生生物科技有限公司 | Bare -handed outer fixing system of nail that puts |
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Application publication date: 20160113 |