CN2713990Y - Universal joint - Google Patents
Universal joint Download PDFInfo
- Publication number
- CN2713990Y CN2713990Y CN 200320103338 CN200320103338U CN2713990Y CN 2713990 Y CN2713990 Y CN 2713990Y CN 200320103338 CN200320103338 CN 200320103338 CN 200320103338 U CN200320103338 U CN 200320103338U CN 2713990 Y CN2713990 Y CN 2713990Y
- Authority
- CN
- China
- Prior art keywords
- single cavity
- universal joint
- pad
- pressure pad
- centre bore
- 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.)
- Expired - Lifetime
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- Surgical Instruments (AREA)
Abstract
The utility model provides a universal joint, comprising a single-groove pressure pad 1, a concave-surface shim 2, a single-groove base 3, and fastening screw nails 4. Wherein, the upper layer of the universal joint is provided with the single-groove pressure pad 1; the middle part is provided with the concave-surface shim 2; the lower layer is provided with the single-groove base 3; a centre hole and arc groove are provided on the single-groove pressure pad 1; the centre hole is provided on the concave surface shim 2; a threaded hole and the arc groove are provided on the single-groove base 3; the fastening screw nail 4 pass through the centre holes of the single groove pressure pad 1 and the concave-surface shim 2 to be connected with the threaded hole of the single-groove base 3. The universal joint which has small volume and simple structure is convenient to be connected with a connecting rod element, a half-ring bow or an arc bow, and thus the universal joint can be used for a bone external fixer.
Description
One, technical field:
This utility model belongs to a kind of medical apparatus and instruments, is specifically related to the universal joint that uses on a kind of bone external fixator.
Two, background technology:
At present, the planform of bone external fixator is single, lacks versatility, motility and practicality, uses inconvenient.
Three, summary of the invention:
The technical problems to be solved in the utility model is: the universal joint of design, can be fixing to interconnecting of external fixator member, and be combined into various required clinically configurations, increased the versatility and the practicality of external fixator.
The technical solution adopted in the utility model is: universal joint is made up of single cavity pressure pad 1, concave surface pad 2, single cavity base 3 and trip bolt 4, the upper strata of universal joint is provided with that single cavity pressure pad 1, centre are provided with concave surface pad 2, lower floor is provided with single cavity base 3, single cavity pressure pad 1 is provided with centre bore and arcuate groove, concave surface pad 2 is provided with centre bore, single cavity base 3 is provided with screw and arcuate groove, and the centre bore that trip bolt 4 passes single cavity pressure pad 1 and concave surface pad 2 is connected with the screw of single cavity base 3.Described single cavity pressure pad 1 is provided with the centre bore of Φ 5mm ~ Φ 8mm and is fastenedly connected bar or semi-ring bow or the arcuate groove of arc bow, is provided with reinforcement in a side of centre bore, and the surface of only pressing of reinforcement exceeds screw face 2 ~ 4mm; Single cavity base 3 is provided with the screw of M5mm ~ M8mm and is fastenedly connected bar or semi-ring bow or the arcuate groove of arc bow, is provided with reinforcement in a side of screw, and the surface of only pressing of reinforcement exceeds screw face 2 ~ 4mm.The centre bore of described concave surface pad 2 is Φ 5mm ~ 8mm, and the pad two sides is respectively arranged with the anti-slop serrations of protrusion.
This utility model compared with prior art, have following beneficial effect: this universal joint can be fixing to interconnecting of external fixator member, and as connecting rod, interconnecting of bow and ring is fixing, be combined into various required clinically geometric configurations, increased the versatility and the practicality of external fixator.
Four, description of drawings:
Fig. 1 is a structure chart of the present utility model;
Five, the specific embodiment:
Universal joint is made up of single cavity pressure pad 1, concave surface pad 2, single cavity base 3 and trip bolt 4, the upper strata of universal joint is provided with that single cavity pressure pad 1, centre are provided with concave surface pad 2, lower floor is provided with single cavity base 3, single cavity pressure pad 1 is provided with centre bore and arcuate groove, concave surface pad 2 is provided with centre bore, single cavity base 3 is provided with screw and arcuate groove, and the centre bore that trip bolt 4 passes single cavity pressure pad 1 and concave surface pad 2 is connected with the screw of single cavity base 3.Described single cavity pressure pad 1 is provided with the centre bore of Φ 5mm and is fastenedly connected bar or semi-ring bow or the arcuate groove of arc bow, is provided with reinforcement in a side of centre bore, and the surface of only pressing of reinforcement exceeds screw face 2mm; Single cavity base 3 is provided with the screw of M5mm and is fastenedly connected bar or semi-ring bow or the arcuate groove of arc bow, is provided with reinforcement in a side of screw, and the surface of only pressing of reinforcement exceeds screw face 2mm.The centre bore of described concave surface pad 2 is Φ 5mm, and the pad two sides is respectively arranged with the anti-slop serrations of protrusion.
Claims (3)
1, a kind of universal joint comprises trip bolt (4), it is characterized in that: universal joint is made up of single cavity pressure pad (1), concave surface pad (2), single cavity base (3) and trip bolt (4); The upper strata of universal joint is provided with that single cavity pressure pad (1), centre are provided with concave surface pad (2), lower floor is provided with single cavity base (3), single cavity pressure pad (1) is provided with centre bore and arcuate groove, concave surface pad (2) is provided with centre bore, single cavity base (3) is provided with screw and arcuate groove, and the centre bore that trip bolt (4) passes single cavity pressure pad (1) and concave surface pad (2) is connected with the screw of single cavity base (3).
2, according to the described universal joint of claim 1, it is characterized in that: described single cavity pressure pad (1) is provided with the centre bore of Ф 5mm-Ф 8mm and is fastenedly connected bar or the arcuate groove of semi-ring bow or arc bow, side at centre bore is provided with reinforcement, and the surface of only pressing of reinforcement exceeds screw face 2-4mm; Single cavity base (3) is provided with the screw of M5mm-M8mm and is fastenedly connected bar or semi-ring bow or the arcuate groove of arc bow, is provided with reinforcement in a side of screw, and the surface of only pressing of reinforcement exceeds screw face 2-4mm.
3, according to the described universal joint of claim 1, it is characterized in that: the centre bore of described concave surface pad (2) is Ф 5mm-8mm, and the pad two sides is respectively arranged with the anti-slop serrations of protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320103338 CN2713990Y (en) | 2003-11-14 | 2003-11-14 | Universal joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320103338 CN2713990Y (en) | 2003-11-14 | 2003-11-14 | Universal joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2713990Y true CN2713990Y (en) | 2005-08-03 |
Family
ID=34866409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320103338 Expired - Lifetime CN2713990Y (en) | 2003-11-14 | 2003-11-14 | Universal joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2713990Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102366328A (en) * | 2011-09-23 | 2012-03-07 | 吕昌伟 | Outer fixing rack joint for department of orthopedics |
-
2003
- 2003-11-14 CN CN 200320103338 patent/CN2713990Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102366328A (en) * | 2011-09-23 | 2012-03-07 | 吕昌伟 | Outer fixing rack joint for department of orthopedics |
| CN102366328B (en) * | 2011-09-23 | 2015-02-04 | 吕昌伟 | Outer fixing rack joint for department of orthopedics |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20131114 Granted publication date: 20050803 |