CN2207159Y - Combination external fixer for fracture - Google Patents
Combination external fixer for fracture Download PDFInfo
- Publication number
- CN2207159Y CN2207159Y CN 94228761 CN94228761U CN2207159Y CN 2207159 Y CN2207159 Y CN 2207159Y CN 94228761 CN94228761 CN 94228761 CN 94228761 U CN94228761 U CN 94228761U CN 2207159 Y CN2207159 Y CN 2207159Y
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- China
- Prior art keywords
- fracture
- corner
- guide post
- external fixator
- external
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- Expired - Fee Related
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Abstract
The utility model relates to a combined outer fixer for the fracture reposition, which belongs to the field of a medical appliance, and the combined outer fixer is composed of a needle-holding position-changing device and a connecting rod assembly, wherein, a needle holder is sheathed with an inclined sleeve which is fixed on an arc-shaped supporting frame plate, and the arc-shaped supporting frame plate is fixed on the adjusting body of the connecting rod assembly and a sliding groove of a guide rod through a friction angle-changing sliding block and a friction positioning gasket. The guide rod is arranged in a rotary adjusting amplitude and is sheathed on the adjusting body and is positioned by locking positioning screws. The combined outer fixer adopts three adjusting bodies to adapt the reposition positioning of the common fracture, the multi-section fracture and the slope spiral fracture. The utility model has the advantages of good mechanical property and fixed firmness, realizes flyover-crossing multidirectional fixing, makes the reposition and the fixing be synchronous, and can be widely used for various fractures.
Description
This utility model belongs to medical apparatus and instruments, refers in particular to external immobilizer for fracture restitution.
The existing miscellaneous fracture external fixator that resets, kind is more.The single arm type external immobilizer for fracture restitution, it is to constitute by holding pin displacement device and link assembly etc., and it is relatively simple for structure, and axial force is relatively poor.Bilateral formula external immobilizer for fracture restitution, Kirschner wire passes tissue, and is big to skin injury.And semi-ring formula external fixator, to the body fixation, good stability, but volume is bigger, and heaviness is unfavorable for that patient has a rest.
The purpose of this utility model provides a kind of suitable all places and angle, and on-load carries out machinery to fracture to be adjusted, and helps patient and has a rest and early ambulant, resets and the fixing synchronous composite bone fracture external fixator that resets thereby reach.
The purpose of this utility model is achieved in that it constitutes by holding pin displacement device and link assembly.Holding the pin displacement device is to be with oblique cover on the needle stand to be adorned admittedly on the arc support plate by nut through friction pad, upper and lower each cover, and tiltedly inner room is adorned Kirschner wire, is fixed on the link assembly by clamping screw through friction angle slide block, friction locating pad in the middle part of the arc support plate.
The link assembly structure is adjusted in the width of cloth for rotation the guide post that an end has spacer pin is housed, and it is spacing by the position spacer pin, rotation is adjusted the width of cloth and is enclosed within on the adjustment body, by locking positioning screw location, holds the pin displacement device and is separately fixed on the sliding tray of adjusting body and guide post.
For realizing that the adjustment body in the purpose link assembly of the present utility model adopts three kinds of forms.
Adjust body for first kind and be one and have external screw thread and locking positioning screw hole, in the guide post groove is arranged, there is sliding tray the other end.
Second kind is adjusted body is that two has external screw thread and locking positioning screw hole, in the guide post groove is arranged, the middle part has sliding tray.
The third is adjusted body and makes the connector be made up of two corner bodies, corner joint, bearing pin, ball screw and each part of knob into, the corner body is one and has external screw thread and locking positioning screw hole, in the guide post groove is arranged, there are two mutually perpendicular holes at the middle part, the breach that the other end has securement head ball screw spherical in shape to cooperate with the corner body, rotate in two mutually perpendicular holes in the ball screw bulb, ball screw makes corner joint orientation become the angle, connect through bearing pin respectively between two mutually perpendicular corner bodies and the corner joint, knob is housed on the ball screw.
This external fixator, in conjunction with row booster, the mechanics of materials, and human anatomy, Principle of Mechanical Designing and wound in biomechanics and clinical manifestation and therapy design for the basis.The arc support plate of holding the pin displacement device has 360 ° of changeable angle and position functions, needle stand can freely rotate 360 °, become the oblique cover on 60 ° of inclined-planes also can freely rotate, the a whole set of cooperation can be turned to the ideal pin position of holding, thereby the angle that makes Kirschner wire can be selected decision arbitrarily, the clover leaf method of having an injection of triangle is realized in the locking back, and fracture site is coupled together, and has reduced the specification requirement to having an injection widely.Link assembly can freely be adjusted length, control synthetism length.Adopt first kind to adjust body, be applicable to that the general reduction of the fracture fixes.Adopt second kind to adjust body, it is fixing to be applicable to that several sections of fracture resets.Adopt the third to adjust body, the multi-faceted one-tenth of energy angle helps controlling synthetism direction position.
The utility model has the advantages that, integrate flexible, translation, rotation, displacement and become the angle multi-functional with direction.Good mechanical property is accurate, firm, stable.Fixed performance is good, realizes that crossings on different level is multidirectional fixing, solid and reliable.The plane of threading a needle is selected arbitrarily, is beneficial to working doctor.Volume is little, and is in light weight, but patient's early ambulant promotes healing.Be convenient to nursing and handle wound, make to reset with synchronously fixing.
Concrete structure of the present utility model is provided by following examples and accompanying drawing thereof.
Fig. 1 is this utility model structural representation
Fig. 2 is this utility model A-A cutaway view
1-adjusts body 2-rotation adjustment width of cloth 3-guide post 4-lock nut 5-position spacer pin 6-locking positioning screw 7-arc support plate 8-needle stand 9-nut 10-friction pad 11-and tiltedly overlaps 12-spacer pin 13-clamping screw 14-friction locating pad 15-friction angle slide block
This external fixator constitutes by holding pin displacement device and link assembly, holding pin deflection machine device is to be with oblique cover (11) on the needle stand (8) to have on the arc support plate (7) of sliding tray by nut (9) dress is solid through friction pad (10), upper and lower each cover, tiltedly adorn Kirschner wire between cover (11), arc support plate (7) middle part is through friction angle slide block (15), and friction locating pad (14) is fixed on the link assembly by clamping screw (13).Have the profile of tooth rubbing surface on the friction angle slide block (15), on the contacted link assembly of friction angle slide block (15), also have corresponding profile of tooth rubbing surface, increase friction, anti-sliding stop.The link assembly structure has on the guide post of spacer pin (12) (3) in the rotation adjustment width of cloth (2) end being housed, and it is spacing by position spacer pin (5), rotation is adjusted the width of cloth (2) and is sleeved on the have lock nut adjustment body (1) of (4), locate by locking positioning screw (6), adjustment body (1) is one and has external screw thread and locking positioning screw hole, in stem guiding trough is arranged, there is the structure of sliding tray the other end, holds needle device and is separately fixed on the sliding tray of adjusting body (1) and guide post (3).Be applicable to general fracture.
Embodiment 2
Fig. 3 is this utility model several sections of fracture external fixator structural representation that resets
16-adjusts body
This external fixator constitutes by holding pin displacement device and link assembly.Different with embodiment 1 except that adjusting body (16) in the link assembly, all the other each parts are all identical with embodiment 1.Adjusting body (16) is that two has external screw thread and locking positioning screw hole, in the guide post groove is arranged, the middle part has the structure of sliding tray, adjusts on the body (16) to have lock nut (4), is equipped with on the sliding tray of middle part and holds the pin displacement device.Have three covers and hold the pin displacement device, be applicable to that several sections of fracture resets with fixing.
Fig. 4 is this utility model universal external immobilizer for fracture restitution structural representation
Fig. 5 is the corner body structure sketch map in this utility model universal external immobilizer for fracture restitution
Fig. 6 is the corner joint structural representation in this utility model universal external immobilizer for fracture restitution
17-corner body 18-ball screw 19-corner joint 20-bearing pin 21-knob
This external fixator constitutes by holding pin displacement device and link assembly.Remove and adjust the connector that body changes two corner bodies (17), corner joint (19), bearing pin (20), ball screw (18) and each part composition of knob (21) in the link assembly, remove lock nut, all the other each parts are all identical with embodiment 1.Corner body (17) is one and has external screw thread and locking positioning screw hole, in the guide post groove is arranged, there are two mutually perpendicular holes at the middle part, the breach that the other end has securement head ball screw spherical in shape (18) to cooperate with corner body (17), ball screw (18) bulb is rotated in two mutually perpendicular holes, and ball screw (18) makes corner joint (19) be positioned to the angle.Corner joint (19) is the vertical universal shaft coupling device in the left and right sides, connects through bearing pin (20) respectively between two mutually perpendicular corner bodies (17) and the corner joint (19), and ball screw (18) is gone up dress knob (21).Be applicable to the treatment long bone fracture, the inclined-plane spiral fracture in the fracture of lower leg, comminuted, open fracture.
Claims (7)
1, the composite bone fracture external fixator that resets, constitute by holding pin displacement device and link assembly, it is characterized in that, holding the pin displacement device is to be with oblique cover (11) on the needle stand (8) to be adorned solid on arc support plate (7) by nut (9) through friction pad (10), upper and lower each cover, tiltedly between cover (11) Kirschner wire is housed, arc support plate (7) middle part is fixed on the link assembly by clamping screw (13) through friction angle slide block (15), friction locating pad (14)
The link assembly structure has the guide post of spacer pin (12) (3) in the rotation adjustment width of cloth (2) end being housed, and it is spacing by position spacer pin (5), rotation is adjusted the width of cloth (2) and is sleeved on the adjustment body (1), by locking positioning screw (6) location, hold the pin displacement device and be separately fixed on the sliding tray of adjusting body (1) and guide post (3).
2, external fixator according to claim 1 is characterized in that, adjust body (1) and be one and have external screw thread and locking positioning screw hole, in the guide post groove is arranged, there is sliding tray the other end.
3, external fixator according to claim 1 is characterized in that, adjust body (16) and have external screw thread and locking positioning screw hole for two, in the guide post groove is arranged, the middle part has sliding tray.
4, external fixator according to claim 1, it is characterized in that, adjusting body makes into by two corner bodies (17), corner joint (19), bearing pin (20), the connector that each part of ball screw (18) and knob (21) is formed, corner body (17) is one and has external screw thread and locking positioning screw hole, in the guide post groove is arranged, there are two mutually perpendicular holes at the middle part, the breach that the other end has securement head ball screw spherical in shape (18) to cooperate with corner body (17), rotate in two mutually perpendicular holes in ball screw (18) bulb, ball screw (18) makes corner joint (19) orientation become the angle, connects through bearing pin (20) respectively between two mutually perpendicular corner bodies (17) and the corner joint (19).
5, external fixator according to claim 1 is characterized in that, has on the friction angle slide block (15) on profile of tooth rubbing surface and the contacted link assembly of friction angle slide block (15) and also has corresponding profile of tooth rubbing surface.
6, external fixator according to claim 2 is characterized in that, adjusting on the body (1) has lock nut (4).
7, external fixator according to claim 3 is characterized in that, adjusting on the body (16) has lock nut (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94228761 CN2207159Y (en) | 1994-05-31 | 1994-05-31 | Combination external fixer for fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94228761 CN2207159Y (en) | 1994-05-31 | 1994-05-31 | Combination external fixer for fracture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2207159Y true CN2207159Y (en) | 1995-09-13 |
Family
ID=33841231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94228761 Expired - Fee Related CN2207159Y (en) | 1994-05-31 | 1994-05-31 | Combination external fixer for fracture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2207159Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106725780A (en) * | 2017-03-26 | 2017-05-31 | 天津市新中医疗器械有限公司 | A kind of orthopaedics ring rod combines exterior fixing rack |
-
1994
- 1994-05-31 CN CN 94228761 patent/CN2207159Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106725780A (en) * | 2017-03-26 | 2017-05-31 | 天津市新中医疗器械有限公司 | A kind of orthopaedics ring rod combines exterior fixing rack |
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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 |