CN103479416B - Bionic unilateral external fixation bracket for human body - Google Patents
Bionic unilateral external fixation bracket for human body Download PDFInfo
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- CN103479416B CN103479416B CN201310481889.5A CN201310481889A CN103479416B CN 103479416 B CN103479416 B CN 103479416B CN 201310481889 A CN201310481889 A CN 201310481889A CN 103479416 B CN103479416 B CN 103479416B
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- human body
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- fixation bracket
- locking
- locking member
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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
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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)
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- Orthopedics, Nursing, And Contraception (AREA)
Abstract
The invention discloses a kind of bionic unilateral external fixation bracket for human body, it comprises: joint ball, in a pair locking member of joint ball both sides, the conversion pad between joint ball and locking member, the extension be connected with locking member opposite side and the nail clip removably connected with extension.The present invention is human body Bionic Design, can ensure human synovial have been installed bionical exterior fixation bracket after, any when can ensure that patient articular carries out functional rehabilitation exercise may the movement in direction and twisting, content with funtion reconditioning needs, any restriction can not be had to natural joint, and the fastness of fracture end can be ensured.
Description
Technical field
The present invention relates to a kind of bionic unilateral external fixation bracket for human body.
Background technology
Exterior fixation bracket is entered fracture two ends pin or nail bit, after will penetrate fracture outward at skin pin be fixed on external fixer, it has following effect: the good reset that 1) can keep fracture end; 2) fracture two ends can be retracted to extend limbs; 3) can condensation technique be utilized, promote union of fracture; 4) early stage angulation deformity and rotation deformity can be corrected, as old fracture.
But existing exterior fixation bracket range of motion is little, that can only carry out in one plane is bending.For elbow joint, patient, when having installed existing exterior fixation bracket, can only carry out the curvature movement of forearm to shoulder joint direction, and can not carry out the movement in other directions and the twisting of forearm.The external support bracket fastened storing status requirement of prior art is accurately harsh in addition, and when accurately locating (passing through radioscopy) arthrogryposis axle center, must could install exterior fixation bracket.
Summary of the invention
The object of this invention is to provide a kind of bionic unilateral external fixation bracket for human body.
For reaching the object of the invention, the invention provides following technical scheme: a kind of bionic unilateral external fixation bracket for human body, it comprises: joint ball, in a pair locking member of joint ball both sides, the conversion pad between joint ball and locking member, the extension be connected with locking member opposite side and the nail clip removably connected with extension.
On the basis of technique scheme, comprise following attached technical scheme further:
Described joint ball is made up of the hemisphere of two specular, comprises ball inner chamber, a pair special-shaped slot that tangent plane is wedge shape and the connecting portion for being connected two hemispheres.
Described locking member comprises locking cavity, one end is housed in the locking pull bar that in locking cavity, the other end is then housed in intracavity in ball, the connecting portion be connected with extension, and wherein special-shaped slot allows locking pull bar to move up two side.
The inner side radian of described conversion pad is different from outside radian.
Described extension comprise allow connecting portion to insert inner chamber, be arranged on interior intracavity and several fins coordinated with gathering sill, the drive hole with intracavity inter-connection, the eccentric wheel hole adjacent with drive hole, be housed in interior intracavity gear, be housed in interior intracavity and for lock nail clip pull bar, for accommodating nail clip and the nail clip chamber be connected with eccentric wheel hole.
Described gear is made up of worm gear pole and worm gear, and with as a whole.
Tool of the present invention has the following advantages:
Imitate each joint motions rule of human body and pressure reducing mode completely, substantially can reach the rotation in human body self joint and the angle of motion, can X-ray thoroughly, the pressurization of worm gear automatization, prolongation, easy and simple to handle laborsaving.Main body is light, and joint is flexible, fixing reliable.Easy and simple to handle, locking firmly, can be done provisional treatment and radical treatment, operation technique is convenient, laborsaving, flexible, Wicresoft.Postoperative ankle locking firmly, have strong support, fracture end stablizes.Early functional exercise can reach movement angle and the anglec of rotation in human body self joint substantially.While the seesawing of guarantee 130 degree, each side can carry out the swing of 32 degree and the twisting of 360 degree.The scope of application: pelvis, backbone, shoulder joint, elbow joint, carpal joint, hip joint, knee joint and ankle joint.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is the structural representation of the present invention when being applied to human body.
Fig. 2 is cross-sectional schematic of the present invention.
Fig. 3 is the cross-sectional schematic of joint ball in the present invention.
Fig. 4 is the structural representation of locking member and extension in the present invention.
Fig. 5 is the structural representation of locking pull bar in the present invention.
Fig. 6 is the structural representation of conversion pad in the present invention.
Fig. 7 is the structural representation of drive screw in the present invention.
Fig. 8 is the structural representation of pull bar in the present invention.
Fig. 9 is the structural representation of nail clip in the present invention.
Detailed description of the invention
Embodiment: shown in figure 1-9, the invention provides a kind of bionic unilateral external fixation bracket for human body, it is applied on human body 1, and comprises joint ball 10, in a pair locking member 20 of joint ball 10 both sides, the conversion pad 30 between joint ball 10 and locking member 20, the extension 40 be connected with locking member 20 opposite side and the nail clip 50 removably connected with extension 40.
Joint ball 10 is made up of the hemisphere of two specular, comprises ball inner chamber 12, a pair special-shaped slot 14 and the mutual connection portion 16 for being connected two hemispheres.Wherein special-shaped slot 14 is in wedge shape viewed from tangent plane, and allows a part for tight lock part 20 to penetrate, and two hemisphere are spliced by the type of attachment of slot and inserted link in mutual connection portion 16.
Locking member 20 is the nearly cylinder of hollow, front end is provided with the opening of approximate broadening formation and rear end is circular open, and comprises locking cavity 200, one end and be housed in the other end in locking cavity 200 and be then housed in locking pull bar 22 in ball inner chamber 12, be connected and the connecting portion 24 of inner hollow with extension 40.Locking pull bar 22 can parallelly move while 65 degree along special-shaped slot 14 direction, also can swing 64 degree in the vertical direction of special-shaped slot 14.Locking member 20 is also provided with two dowel holes and eccentric fixing hole 202 in its surface.Locking pull bar 22 comprises the locking bulb 220 in joint ball 10, the locking adjustable ring 222 in locking cavity 200, connects the screw rod 224 of locking between bulb 220 and locking adjustable ring 222 and the lock washer 226 be set on locking bulb 220.Offer annular distance 2220 and be positioned at its side in the middle of locking adjustable ring 222 and be provided with the screw 2222 coordinated with screw rod 224.Screw rod 224 end has screw thread 2240.Locking bulb 220 is a hemisphere, and approximate horn mouth extends, and one-body molded with screw rod 224, and screw rod 224 can screw in locking adjustable ring 222 thus, and ensures that locking pull bar 22 can extend slightly as required or shorten.Locking pull bar 22 is inserted in locking cavity 200 by opening, until locking adjustable ring 222 fixedly aligns with eccentric fixing hole 202, then eccentric 70 is inserted from eccentric fixing hole 202, then 90 degree, rotating eccentricity wheel, locking pull bar 22 can be made to locking member 20 medial movement 1.6 millimeters.All sides of connecting portion 24 are provided with several gathering sills 240 spaced, and the hollow cavity of connecting portion 24 inside is provided with screw thread.
Conversion pad 30 is fixed on the iiared port place of locking member 20, and fit with iiared port, inside it, radian is identical with iiared port, outside radian is identical with the inwall radian of joint ball, the radian that inside and outside both sides are different thus, can ensure that locking pull bar 22 moves at different directions, namely move while 65 degree along special-shaped slot 14 direction, also can swing 64 degree in the vertical direction of special-shaped slot 14.
Extension 40 comprise allow connecting portion 24 to insert inner chamber 400, be arranged in inner chamber 400 and several fins 402 coordinated with gathering sill 240, the drive hole 404 be connected with inner chamber 400, the eccentric wheel hole 406 adjacent with drive hole 404, the gear 42 be housed in inner chamber 400, be housed in inner chamber 400 interior and for lock nail clip 50 pull bar 44, for accommodating nail clip 50 and the nail clip chamber 408 be connected with eccentric wheel hole 406.Gear 42 is made up of, with as a whole worm gear pole 420 and worm gear 422 two funtion parts.The diameter of worm gear pole 420 conforms to the diameter of the hollow cavity of connecting portion 24, and has the screw thread matched with the hollow cavity of connecting portion 24.Gear 42 is positioned at and drives below inlaid hole.Drive screw 80 is a threaded metal bar identical with drive hole 404 diameter, and one end can be loaded on drill bit, is driven rotate by electric drill.At the groove by the drive screw of drive end side there being two cooperation alignment pins.Drive screw 80 is inserted by drive hole 404, and drive end outside.Plug two alignment pins at two dowel hole places again, pin groove, ensure that drive screw can not skid off.Pull bar 44 is similar to locking pull bar 22 structure, and comprises locking ring 440 and locking ball 442.And eccentric wheel hole 406 is also inserted with another eccentric 70, and this eccentric 70 is through the centre bore of locking ring 440.
Nail clip 50 is by for forming in conjunction with fixing spheroid 52 with for closely cylindrical two funtion parts of fixed bone screw with pull bar 44, as a whole.Straight sprig presss from both sides and is that the compound mode of two funtion parts is different from different of T-shaped nail clip.The inwall of spheroid 52 is made up of the horn mouth coordinated with pull bar and a cylindrical structure slightly shunk by horn mouth place.Nearly barrel portion has six throughly to put bone screw 500.Put bone screw 500 diameter and be greater than bone screw.
When assembling, by horn mouth one end of two locking pull bars 22, two and half special-shaped slots 14 respectively by joint ball 10 put into joint ball, after another hemisphere that closes, ensure that two locking pull bars can move respectively in two special-shaped slots.
The present invention is human body Bionic Design, can ensure human synovial have been installed bionical exterior fixation bracket after, can ensure that patients with fractures ensures that movement and the twisting in any possibility direction are carried out in the fixing of fracture end and joint during reconditioning the period for the treatment of, meet human body needs, any restriction can not be had to natural joint, and ensure fastness.
Secondly the present invention only requires the installation being placed in by knuckle support spheroid and namely can carrying out exterior fixation bracket within the scope of human synovial, can reduce the X-ray of medical personnel and patient according to time and operating time.
The present invention can be used for shoulder joint, elbow joint, carpal joint, hip joint, knee joint and ankle joint.Use same joint bionic principle substantially to cover all joints needing to carry out support extenal fixation, meet the treatment needs in each large joint.
Certain above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalent transformations of doing according to the spirit of main technical schemes of the present invention or modification, all should be encompassed within protection scope of the present invention.
Claims (5)
1. a bionic unilateral external fixation bracket for human body, it is characterized in that it comprises: joint ball, in a pair locking member of joint ball both sides, the conversion pad between joint ball and locking member, the extension be connected with locking member opposite side and the nail clip removably connected with extension, wherein said joint ball is made up of the hemisphere of two specular, comprises ball inner chamber, a pair special-shaped slot that tangent plane is wedge shape and the mutual connection portion for being connected two hemispheres.
2. a kind of bionic unilateral external fixation bracket for human body according to claim 1, it is characterized in that: described locking member comprises locking cavity, one end is housed in the locking pull bar that in locking cavity, the other end is then housed in intracavity in ball, the connecting portion be connected with extension, and wherein special-shaped slot allows locking pull bar to move up two side.
3. a kind of bionic unilateral external fixation bracket for human body according to claim 1 and 2, is characterized in that: the inner side radian of described conversion pad is different from outside radian.
4. a kind of bionic unilateral external fixation bracket for human body according to claim 2, is characterized in that: described extension comprise allow connecting portion to insert inner chamber, be arranged on interior intracavity and several fins coordinated with gathering sill, the drive hole with intracavity inter-connection, the eccentric wheel hole adjacent with drive hole, be housed in interior intracavity gear, be housed in interior intracavity and for lock nail clip pull bar, for accommodating nail clip and the nail clip chamber be connected with eccentric wheel hole.
5. a kind of bionic unilateral external fixation bracket for human body according to claim 4, is characterized in that: described gear is made up of worm gear pole and worm gear, and with as a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310481889.5A CN103479416B (en) | 2013-10-16 | 2013-10-16 | Bionic unilateral external fixation bracket for human body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310481889.5A CN103479416B (en) | 2013-10-16 | 2013-10-16 | Bionic unilateral external fixation bracket for human body |
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| Publication Number | Publication Date |
|---|---|
| CN103479416A CN103479416A (en) | 2014-01-01 |
| CN103479416B true CN103479416B (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310481889.5A Active CN103479416B (en) | 2013-10-16 | 2013-10-16 | Bionic unilateral external fixation bracket for human body |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110833446B (en) * | 2018-08-19 | 2023-05-05 | 南京格琴医疗器械有限责任公司 | Knee joint annular rod micro-motion support |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1543915A (en) * | 2003-11-21 | 2004-11-10 | 南京市鼓楼医院 | External fixer for radius distal fracture |
| CN102640542A (en) * | 2009-09-21 | 2012-08-15 | 三星电子株式会社 | System and method for power saving by coordinated wake-up in a wireless multi-band network |
| CN203493715U (en) * | 2013-10-16 | 2014-03-26 | 张韦 | Human body bionic unilateral external fixing support |
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2013
- 2013-10-16 CN CN201310481889.5A patent/CN103479416B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1543915A (en) * | 2003-11-21 | 2004-11-10 | 南京市鼓楼医院 | External fixer for radius distal fracture |
| CN102640542A (en) * | 2009-09-21 | 2012-08-15 | 三星电子株式会社 | System and method for power saving by coordinated wake-up in a wireless multi-band network |
| CN203493715U (en) * | 2013-10-16 | 2014-03-26 | 张韦 | Human body bionic unilateral external fixing support |
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| CN103479416A (en) | 2014-01-01 |
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