CN102362814A - Adjustable bone orthopedic external fixer - Google Patents
Adjustable bone orthopedic external fixer Download PDFInfo
- Publication number
- CN102362814A CN102362814A CN2011101799304A CN201110179930A CN102362814A CN 102362814 A CN102362814 A CN 102362814A CN 2011101799304 A CN2011101799304 A CN 2011101799304A CN 201110179930 A CN201110179930 A CN 201110179930A CN 102362814 A CN102362814 A CN 102362814A
- Authority
- CN
- China
- Prior art keywords
- chute
- connecting rod
- rod
- adjusting rod
- axial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Surgical Instruments (AREA)
Abstract
The invention discloses an adjustable bone orthopedic external fixer. One end of an elastic element is abutted against a position limiting block, the other end of the elastic element is abutted against a positioning block connected onto a regulating rod, a fixing sleeve is fixedly connected with the other end of the regulating rod, the regulating rod comprises a first connecting rod, a second connecting rod and a sleeve, the sleeve is sheathed on the first connecting rod, a radial first chute and a second chute positioned above the first chute are arranged on the peripheral surface of the first connecting rod, the first chute and the second chute are in symmetrical arrangement, an axial third chute is also arranged on the first connecting rod, both ends of the third chute are respectively communicated with the first chute and the second chute, the second connecting rod is provided with an axial through hole, the first connecting rod is inserted into the axial through hole of the second connecting rod, the end part of the second connecting rod is provided with a positioning lug boss, the positioning lug boss is embedded in the first chute. The adjustable bone orthopedic external fixer has the advantage that the length of the external fixer can be regulated.
Description
Technical field
The present invention relates to the armarium technical field, be specifically related to the orthopedic external fixator of a kind of adjustable bone.
Background technology
When glue is fractured under domestic many hospitalizes, adopt the Brown's frame, not enough below this device exists: traction frame and traction bow do not match more, and hauling block must place on the fracture limbs, have increased the height of frame, influence the warming of limbs simultaneously.Because compressive stress is the safest to osteocyte and bone framework, compressive stress is also the most reasonable indirectly.Overcome with axial metastable structure cut, turn round, transition tensile failure that flexure stress causes, satisfy the compressive stress demand at intermittence of bone and its cells, the basis of just axially stablizing the flexible fastening principle with elasticity.It is unpractical that the attempt searching material consistent with the flexible bone modulus done internal fixation, itself does internal fixation with the bone frame material exactly, increases by a bone and also can block half stress.Its intensity still protects the bone framework to exempt from the destruction that over-activity causes inadequately in addition, and the most reasonably fixed apparatus should be that little stress does not block, and bears when stress is big more.This just depends on artificial elastic device, and therefore, reasonably fixing should be can overcome to cut, turn round, bend, flexible axially again, does not block the artificial elastic device of little pressure.For long bone, shearing can be regarded opposite two power of parallel cross-sectional direction as and draw mutually; Reverse is to be center section two examples two tangent line pulling force in the opposite direction with the neutral axis; Bending then is a routine pressure, and another example is a pulling force, because this several all being regarded as of stress concentration is harmful to pulling force, takes the motorcycle damping device just can overcome and cuts the illeffects of turning round, bend, drawing, and does not block the compressive stress transmission again.Because this elastic energy overcomes or alleviates the motion momentum and the momentum that cause.Reduce the destruction of biomaterial, so artificial joint etc. also need this damping device to bone.The patent No. is that 91215259 patent provides a kind of multi-purpose extermal bone fixing support, this fixed support inelastic component, and apparatus volume is bigger, and the length of self can't be adjusted, and can't be applicable to the people of differing heights.
Summary of the invention
The purpose of this invention is to provide a kind of orthopedic external fixator of adjustable bone that can carry out length adjustment.
The technical scheme that realizes the object of the invention is following:
The orthopedic external fixator of adjustable bone comprises adjusting rod, flexible member, slip cap and fixed cover, and slip cap and fixed cover are provided with the spicule hole; Slip cap is enclosed within adjusting rod one end, and adjusting rod is provided with the limited block that is positioned at the slip cap two ends, and flexible member also is enclosed within on the adjusting rod; One end of flexible member and limited block against, the other end be connected on the adjusting rod locating piece against, fixed cover is fixedly connected on the other end of adjusting rod; Said adjusting rod comprises head rod, second connecting rod and sleeve; Jacket casing is on head rod, and the side face of head rod is provided with radial first chute and second chute that is positioned at first chute top, and first chute and second chute are symmetric arrangement; Also be provided with the 3rd axial chute on the head rod; The two ends of the 3rd chute are communicated with first chute and second chute respectively, and said second connecting rod is provided with axial through hole, head rod insert second pitman shaft to through hole in; The end of second connecting rod is provided with positioning convex, and this positioning convex is entrenched in first chute.
Adopt such scheme, when external fixator of the present invention is carried out length adjustment, rotated first adjusting rod; Make the positioning convex of its end turn to the end of first chute; Promote first adjusting rod downwards, positioning convex is moved in second chute along the 3rd chute, rotate first adjusting rod once more; Make positioning convex on second adjusting rod arrive the other end of second chute, the shortening process of adjusting rod finishes.If make the length of adjusting rod return to original state, get final product along the said process reverse operating.The invention solves the adjustment of external fixator length, applicable to the people of differing heights.
Description of drawings
Fig. 1 is the assembly structure sketch map of external fixator of the present invention;
Fig. 2 is the structural representation of adjusting rod among the present invention;
In the accompanying drawing, 1 is adjusting rod, and 2 is flexible member, and 3 is slip cap, and 4 is fixed cover, and 5 is limited block, and 6 is limited block, and 10 is head rod, and 11 is second connecting rod, and 12 is first chute, and 13 is second chute, and 14 is the 3rd chute.
The specific embodiment
With reference to Fig. 1, the orthopedic external fixator of adjustable bone of the present invention comprises adjusting rod 1, flexible member 2, slip cap 3 and fixed cover 4.Slip cap 3 is provided with spicule hole (not shown in the spicule hole pattern) with fixed cover 4, and slip cap 3 is enclosed within adjusting rod one end, and slip cap 3 can be slided axially sliding of adjusting rod on adjusting rod.Adjusting rod 1 is provided with the limited block that is positioned at the slip cap two ends; Wherein, The limited block 5 that is positioned at the slip cap upper end is threaded with adjusting rod, is fixed on adjusting rod, also is fixed on the adjusting rod 1 motionless and be positioned at the limited block 6 of regulating slip cap 3 lower ends.Flexible member 2 is a spring, and flexible member 2 also is enclosed within on the adjusting rod, an end of flexible member and limited block 6 against, the other end be connected on the adjusting rod locating piece 7 against.Fixed cover 4 is fixedly connected on the other end of adjusting rod, fixed cover 4 hinged bearing pins, and the lower end of adjusting rod 1 is fixedly connected with this bearing pin, and what adjusting rod 1 can be whole like this is that central pivot point is rotated with the bearing pin.For adjusting rod, himself can be adjusted in the length of axial direction, and its concrete structure is following:
As shown in Figure 2; Adjusting rod 1 comprises head rod 10, second connecting rod 11 and sleeve 15; Sleeve 15 is enclosed within on the head rod, and the side face of head rod is provided with radial first chute 12 and is symmetric arrangement with second chute, 13, the first chutes and second chute that are positioned at first chute top; First chute and second chute are the chute of " C " shape, and promptly first chute and second chute are not complete cannelures.The two ends that also are provided with axial the 3rd chute 14, the three chutes 14 on the head rod lay respectively at the end of first chute and the end of second chute, so the two ends of the 3rd chute 14 are communicated with first chute 12 and second chute 13 respectively.Second connecting rod is provided with axial through hole, and head rod 10 inserts in the axial through hole of second connecting rod 11, and the end of second connecting rod 11 is provided with positioning convex, and this positioning convex is entrenched in first chute.Because such relation that is provided with can make the part that on the same circumference of head rod, is not cut the processing grooving with first chute or second chute as stop portion, can judge the place, position of the 3rd chute exactly; When making the convexity of second connecting rod arrive the end of first chute head rod rotation, just can promote head rod downwards, the positioning convex of second connecting rod is moved in second chute along the 3rd chute; So promptly can shorten the length of adjusting rod 1; Otherwise, the positioning convex on second connecting rod 11 is moved in first chute 12 from second chute 13, can make the adjusting rod elongation; Therefore; Through such marriage relation, can make the length of adjusting rod obtain adjustment, so that use in the people who is fit to differing heights.Certainly, for the radial groove that is similar to first chute and second chute, can also on head rod, be provided with a plurality of so that adjust as required.
Claims (2)
1. the orthopedic external fixator of adjustable bone comprises adjusting rod, flexible member, slip cap and fixed cover, and slip cap and fixed cover are provided with the spicule hole; Slip cap is enclosed within adjusting rod one end, and adjusting rod is provided with the limited block that is positioned at the slip cap two ends, and flexible member also is enclosed within on the adjusting rod; One end of flexible member and limited block against, the other end be connected on the adjusting rod locating piece against, fixed cover is fixedly connected on the other end of adjusting rod; It is characterized in that: said adjusting rod comprises head rod, second connecting rod and sleeve; Jacket casing is on head rod, and the side face of head rod is provided with radial first chute and second chute that is positioned at first chute top, and first chute and second chute are symmetric arrangement; Also be provided with the 3rd axial chute on the head rod; The two ends of the 3rd chute are communicated with first chute and second chute respectively, and said second connecting rod is provided with axial through hole, head rod insert second pitman shaft to through hole in; The end of second connecting rod is provided with positioning convex, and this positioning convex is entrenched in first chute.
2. the orthopedic external fixator of adjustable bone according to claim 1 is characterized in that: said first chute and second chute are the chute of " C " shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110179930 CN102362814B (en) | 2011-06-30 | 2011-06-30 | Adjustable bone orthopedic external fixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110179930 CN102362814B (en) | 2011-06-30 | 2011-06-30 | Adjustable bone orthopedic external fixer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102362814A true CN102362814A (en) | 2012-02-29 |
| CN102362814B CN102362814B (en) | 2013-01-30 |
Family
ID=45689431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110179930 Expired - Fee Related CN102362814B (en) | 2011-06-30 | 2011-06-30 | Adjustable bone orthopedic external fixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102362814B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0424292A2 (en) * | 1989-10-17 | 1991-04-24 | Fixano Sa | External device for bone immobilisation |
| US20020013584A1 (en) * | 2000-05-24 | 2002-01-31 | Termaten Gerrit J. | Fixing device for orthopedic applications |
| CN2487348Y (en) * | 2001-07-16 | 2002-04-24 | 张廷丰 | Adjustable external fixer for fracture |
| CN202184784U (en) * | 2011-06-30 | 2012-04-11 | 江苏美德康信息科技有限公司 | Adjustable bone orthopedic external fixer |
-
2011
- 2011-06-30 CN CN 201110179930 patent/CN102362814B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0424292A2 (en) * | 1989-10-17 | 1991-04-24 | Fixano Sa | External device for bone immobilisation |
| US20020013584A1 (en) * | 2000-05-24 | 2002-01-31 | Termaten Gerrit J. | Fixing device for orthopedic applications |
| CN2487348Y (en) * | 2001-07-16 | 2002-04-24 | 张廷丰 | Adjustable external fixer for fracture |
| CN202184784U (en) * | 2011-06-30 | 2012-04-11 | 江苏美德康信息科技有限公司 | Adjustable bone orthopedic external fixer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102362814B (en) | 2013-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2009135097A3 (en) | Artificial ligament assembly | |
| DE59908786D1 (en) | DEVICE FOR STRENGTHING OR COMPRESSING BONES OR BONE COMPONENTS | |
| EP2182203A3 (en) | Wind turbine rotor blade with an extension | |
| CN206353436U (en) | A kind of adjustable elastic force clamping type capo tasto of dynamics | |
| EP1915965A3 (en) | Torque transmitting mechanism for medical stand | |
| CN100502800C (en) | Test device for animal anterior crossed ligamentum instant torsion | |
| EP2020191A3 (en) | Mechanical skin resurfacing device and method for use | |
| CN202184784U (en) | Adjustable bone orthopedic external fixer | |
| EP2078856A3 (en) | Shaft for use in a wind energy system and wind energy system | |
| CN102362814B (en) | Adjustable bone orthopedic external fixer | |
| CN103122898A (en) | Extensible pole component and lamp using extensible pole component | |
| NO20071187L (en) | Stock | |
| CN204016465U (en) | A kind of ilium nail of variable-angle | |
| CN202497132U (en) | Animal intervertebral disc body assistor | |
| CN207472667U (en) | A kind of universal long bone biomechanical fixture | |
| CN209404934U (en) | A kind of elasticity intramedullary needle extractor | |
| WO2009024661A3 (en) | Coupling device for connecting the two half-shells of an aircraft engine nacelle, and nacelle equipped with such a device | |
| GB0710257D0 (en) | Adjustable hinge assembly | |
| CN102287442A (en) | Rotating shaft structure for lamp | |
| CN202118097U (en) | Rotating shaft structure for lamps | |
| CN202161403U (en) | Torque-resistant quick-connecting handle | |
| CN204209646U (en) | Gas pick housing | |
| CN203280492U (en) | Operating handle nail pushing device | |
| CN202637079U (en) | Needle fixing clamp | |
| CN104274936A (en) | Portable skipping rope with adjustable length |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20130630 |