CN2448312Y - Single side multi-function adjustable external bone fixator - Google Patents
Single side multi-function adjustable external bone fixator Download PDFInfo
- Publication number
- CN2448312Y CN2448312Y CN 00232369 CN00232369U CN2448312Y CN 2448312 Y CN2448312 Y CN 2448312Y CN 00232369 CN00232369 CN 00232369 CN 00232369 U CN00232369 U CN 00232369U CN 2448312 Y CN2448312 Y CN 2448312Y
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- China
- Prior art keywords
- leading screw
- stationary pipes
- fixing pipe
- utility
- monolateral
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Abstract
The utility model relates to a single side multi-function adjustable external bone fixer which comprises a support rod and a plurality of bone needle holders which are sheathed on the support rod. The utility model is characterized in that the support rod is composed of a left fixing pipe, a right fixing pipe, and a leading screw which penetrates through an inner cavity of the support rod; the right fixing pipe is sheathed on the right end of the left fixing pipe provided with an anti-rotation plane surface in a sliding fit mode; one end of the leading screw is cooperated with the left fixing pipe, and the other end is sheathed with a positioning nut cooperated with an inner screw thread of the right fixing pipe; a stop block is arranged on the leading screw. The utility model has the advantages that biomechanics and clinical treatment are combined, which is favorable to the union of fracture and can improve union quality; the problem of a needle gauge is solved; the utility model can be pressed or stretched; the structure is simple, the stability is high, and the operation is convenient.
Description
This utility model belongs to a kind of medical apparatus and instruments, especially a kind of monolateral multifunctional adjustable bone external fixator that is applicable to the treatment orthopaedic disease.
The bone external fixation is little, safe, simple to operate with its damage, fixing reliable, advantage such as functional rehabilitation is fast and be subjected to numerous patients and orthopedist's welcome deeply.In recent years, along with the research of biomechanics is deeply found, the bone external fixation not only will have fixed effect, the function that accelerating union of bone fracture also should be arranged, this just requires the bone external fixator will accomplish in design: 1, bone is decided the needle gage scalable of pin, and two pin needle gages of nearly fracture line dwindle as much as possible, and the locking pin needle gage of fracture line far away strengthens as much as possible, to increase hold, improve the stability of exterior fixation bracket to bone.2, can pressurize or prolong.3, support can mobilism.At present, the unilateral external fixator kind of clinical use is more, but what meet above-mentioned requirements does not almost have, use more in the prior art, generally believe and be preferably the monolateral holder of AO, its construction features is: a plurality of spicule chucks are contained on the elongated tubular support, and can on support, move, during use spicule is separately fixed in the spicule folder, determine position between two spicules by adjusting distance between the spicule folder, this fixer structure is simple, use also more convenient, but also exist following weak point: can't pressurize or stretch, can not be interrupted and carry out pressurization or stretching, and can not make the support mobilism.
The purpose of this utility model is just at the problems referred to above and custom-designed a kind of monolateral multifunctional adjustable bone external fixator, this fixer structure is reasonable, easy to use, can arbitrarily adjust the needle gage of locking pin, fully meet biomechanical principle, scientifically utilize the stress stimulation between fracture site, accelerating bone healing.
The purpose of this utility model realizes by following scheme: this adjustable bone external fixator comprises tubular supporting bar and is sleeved on its tubular supporting bar, and a plurality of spicule folders that can move thereon, wherein: tubular supporting bar is by left stationary pipes, right stationary pipes and the adjusting leading screw that is applied in the two cavity are formed, a left side, right stationary pipes external diameter is identical, right stationary pipes is sleeved on the mating surface that left stationary pipes right-hand member processes with sliding matching mode, be provided with a location screw between the two, and be processed with one on the described mating surface and prevent the plane that it rotates mutually, regulate the screw-internal thread fit of leading screw one end and left stationary pipes, the other end is set with a location nut, and this setscrew nut matches with the female thread of right stationary pipes, regulates leading screw and is provided with a locating part.
Regulate in this utility model in the space that the locating part on the leading screw forms between the shoulder of the stairstepping cavity of right stationary pipes and setscrew nut front end face; Described locating part is a limited ring dais, also can be to be installed in the spacer pin of regulating on the leading screw.
During use, because the spicule folder lays respectively on the left and right stationary pipes, regulate leading screw and can make the pitch enlargement between left and right stationary pipes or dwindle by turning, thereby play pressurization or stretching to the bone injury place, reach therapeutic effect, after adjusting to satisfactory spacing, the screwed in place screw remains static left and right stationary pipes.When both mobilism of needs, back out setscrew nut, unclamp dog screw, rotational lead screw is extracted out and is got final product.
This utility model compared with prior art has the following advantages: meet biomechanical principle more, biomechanical principle and clinical treatment are combined, reasonably utilize the stress stimulation of fracture end, accelerating union of bone fracture and can improve healing quality; Not only solved the problem of needle gage, increased the hold to bone, can pressurize or stretch, its stretching distance can surpass 10 centimetres, is that other unilateral external fixator is incomparable.This apparatus has been realized the mobilism of support, and the invariant that traditional bone external fixator is applied fixedly is transformed into type variable and fixes.This holder good mechanical property, accurate, firm, stable, simple in structure, be convenient to operation, a kind of competitive product of can yet be regarded as.
The drawing of accompanying drawing is described as follows:
Fig. 1 cuts open figure for structure master of the present utility model.
Fig. 2 is the A-A cutaway view of Fig. 1.
This utility model is done below in conjunction with accompanying drawing and is described in further detail:
As Fig. 1, shown in 2: this adjustable bone external fixator comprises tubular supporting bar and is sleeved on its tubular supporting bar, and a plurality of spicule folders (1) that can move thereon, wherein: tubular supporting bar is by left stationary pipes (2), right stationary pipes (4) and the adjusting leading screw (6) that is applied in the two cavity are formed, a left side, right stationary pipes external diameter is identical, right stationary pipes (4) is sleeved on the mating surface that left stationary pipes (2) right-hand member processes with sliding matching mode, be provided with a location screw (3) between the two, and be processed with one on the described mating surface and prevent its plane of rotating mutually (8), regulate the front end of leading screw (6) and the screw-internal thread fit of left stationary pipes (2), its rear end is set with a location nut (5), and this setscrew nut (5) matches with the female thread of right stationary pipes (4), and the afterbody of described adjusting leading screw (6) is six sides or tetragonal; In addition, regulate leading screw (6) and be provided with a limited ring dais (9), this limited ring dais (9) is positioned at the space that forms between the shoulder (7) of stairstepping cavity of right stationary pipes (4) and setscrew nut (5) front end face.
Claims (4)
1, a kind of monolateral multifunctional adjustable bone external fixator, it comprises tubular supporting bar and is sleeved on its tubular supporting bar, and a plurality of spicule folders (1) that can move thereon, it is characterized in that: tubular supporting bar is by left stationary pipes (2), right stationary pipes (4) and the adjusting leading screw (6) that is applied in the two cavity are formed, a left side, right stationary pipes (2) (4) external diameter is identical, right stationary pipes (4) is sleeved on the mating surface that left stationary pipes (2) right-hand member processes with sliding matching mode, be provided with a location screw (3) between the two, and be processed with one on the described mating surface and prevent its plane of rotating mutually (8), regulate the screw-internal thread fit of leading screw (6) one ends and left stationary pipes (2), the other end is set with a location nut (5), and this setscrew nut (5) matches with the female thread of right stationary pipes (4), regulates leading screw (6) and is provided with a locating part (9).
2, monolateral multifunctional adjustable bone external fixator according to claim 1 is characterized in that: regulate locating part (9) on the leading screw (6) and be positioned at the space that forms between the shoulder (7) of stairstepping cavity of right stationary pipes (4) and setscrew nut (5) front end face.
3, monolateral multifunctional adjustable bone external fixator according to claim 1 and 2 is characterized in that: being located at the locating part of regulating on the leading screw (6) (9) is a limited ring dais.
4, monolateral multifunctional adjustable bone external fixator according to claim 1 and 2 is characterized in that: be located at the locating part of regulating on the leading screw (6) (9) and be one and be installed in the spacer pin of regulating on the leading screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00232369 CN2448312Y (en) | 2000-11-08 | 2000-11-08 | Single side multi-function adjustable external bone fixator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00232369 CN2448312Y (en) | 2000-11-08 | 2000-11-08 | Single side multi-function adjustable external bone fixator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2448312Y true CN2448312Y (en) | 2001-09-19 |
Family
ID=33595021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00232369 Expired - Fee Related CN2448312Y (en) | 2000-11-08 | 2000-11-08 | Single side multi-function adjustable external bone fixator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2448312Y (en) |
-
2000
- 2000-11-08 CN CN 00232369 patent/CN2448312Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |