CN201631291U - Bone-positioning reductor - Google Patents
Bone-positioning reductor Download PDFInfo
- Publication number
- CN201631291U CN201631291U CN2010201336549U CN201020133654U CN201631291U CN 201631291 U CN201631291 U CN 201631291U CN 2010201336549 U CN2010201336549 U CN 2010201336549U CN 201020133654 U CN201020133654 U CN 201020133654U CN 201631291 U CN201631291 U CN 201631291U
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- CN
- China
- Prior art keywords
- sleeve
- arm
- positioning
- bone
- fixed
- 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 - Fee Related
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Abstract
The utility model belongs to medical instruments and relates to a bone-positioning reductor which is used for accurately drilling and installing a fastening screw during reduction and fixation treatment for the local fractured bone pieces of the bone. The bone-positioning reductor comprises an arch structure consisting of a front arm and a rear arm, wherein the front arm and the rear arm can be mutually nested, the relative position of the front arm and the rear arm can be flexibly adjusted, and the front arm and the rear arm are fixed through a firm screw; the front end of the front arm is fixed with a front positioning sleeve of which the center is provided with a guide hole; the rear end of the rear arm is fixed with an outer screw sleeve; an inner screw sleeve penetrates in an inner hole of the outer screw sleeve through screw threads in a matching way; the front end of the inner screw sleeve extends out of the outer screw sleeve; a rear positioning sleeve with a guide hole penetrates in an inner hole of the inner screw sleeve; and the guide hole of the rear positioning sleeve is coaxial with that of the front positioning sleeve. The utility model has simple structure and convenient operation; in addition, the drilling penetrating-in point and the penetrating-out point can be accurately and firmly positioned, and the drilling accuracy and the positioning reliability are ensured.
Description
Technical field
This utility model belongs to medical apparatus and instruments, relates to a kind of skeleton that is used for accurately boring and arrangement hold-down screw when the partial fractured bone piece of skeleton is resetted fixation for treatment and locatees positor.
Background technology
In the therapeutic process of the local fracture of skeletons such as tibia, need earlier to hole again after will the bone piece positioning and fixing of fracture and to penetrate the screw location, in the present clinical practice, normally by operator's range estimation or use easy positioner to determine the direction of holing.The range estimation borehole accuracy is low, departs from easily; And the locating effect of existing positioner is not good yet, mostly exist fixing insecure, defective such as be difficult to fix at the position of special shape.
Summary of the invention
Technical problem to be solved in the utility model is, provide a kind of simple in structure, easy to use, firm position reliable, can improve the skeleton location positor of borehole accuracy.
Location of the present utility model positor includes a bow-shaped structural that is made of forearm and postbrachium, mutually nested and scalable its relative position of adjusting and fix by firm screw between forearm and the postbrachium; The front end of forearm is fixed with the prelocalization cover that a center has pilot hole, and the rear end of postbrachium is fixed with an external thread sleeve, by the threaded engagement cross-under an interior swivel nut is arranged in the endoporus of external thread sleeve, and interior swivel nut front end stretches out external thread sleeve; Be installed with a back positioning sleeve with pilot hole in the endoporus of interior swivel nut, the pilot hole on the back positioning sleeve is coaxial with the pilot hole that prelocalization puts.
Described prelocalization cover rear end face and interior swivel nut front end face are provided with the tooth of projection, and being used for the relative engagement clamping need localized local skeleton.
This utility model is simple in structure, easy to operate, it can be accurately the point of entrance of location drilling and exit points securely, guaranteed drilling accuracy and localized reliability.
Description of drawings
Fig. 1 is the structural representation of this utility model embodiment.
The specific embodiment
The sketch map that to be this utility model embodiment position the local cracked bone piece of tibia A as shown in the figure.It includes a bow-shaped structural that is made of forearm 1 and postbrachium 2, and mutually nested and scalable its relative position of adjusting is also fixed by firm screw 3 between forearm and the postbrachium; The front end of forearm is fixed with the prelocalization cover 5 that a center has pilot hole 4, and the rear end of postbrachium is fixed with an external thread sleeve 6, by the threaded engagement cross-under an interior swivel nut 7 is arranged in the endoporus of external thread sleeve, and interior swivel nut front end stretches out external thread sleeve 6; Interior swivel nut can clamp or unclamp skeleton part to be positioned with relative the moving forward and backward of prelocalization cover, and prelocalization cover rear end face and interior swivel nut front end face are provided with the tooth 9 of projection, to improve the frictional force of retained part, guarantees the firm, reliable of its clamping; Be installed with a back positioning sleeve 8 with pilot hole in the endoporus of interior swivel nut 7, the pilot hole on the back positioning sleeve is coaxial with the pilot hole that prelocalization puts.
After using device of the present utility model to carry out the location, can utilize the guide effect of forward and backward guide pin bushing, accurately limit the trend of boring and cross-under screw, to guarantee the effect of reduction therapy; Can make it adapt to the use of different size and drill bit and the screw that resets by the back positioning sleeve of changing different inner diameters.
Claims (2)
1. a skeleton is located positor, it is characterized in that: it includes a bow-shaped structural that is made of forearm (1) and postbrachium (2), mutually nested and scalable its relative position of adjusting and fixing by firm screw (3) between forearm and the postbrachium; The front end of forearm (1) is fixed with the prelocalization cover (5) that a center has pilot hole (4), the rear end of postbrachium (2) is fixed with an external thread sleeve (6), by the threaded engagement cross-under an interior swivel nut (7) is arranged in the endoporus of external thread sleeve, interior swivel nut front end stretches out external thread sleeve; Be installed with a back positioning sleeve (8) with pilot hole in the endoporus of interior swivel nut (7), the pilot hole on the back positioning sleeve is coaxial with the pilot hole that prelocalization puts.
2. skeleton according to claim 1 location positor, it is characterized in that: the rear end face of described prelocalization cover (5) and interior swivel nut (7) front end face are provided with the tooth (9) of projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201336549U CN201631291U (en) | 2010-03-18 | 2010-03-18 | Bone-positioning reductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201336549U CN201631291U (en) | 2010-03-18 | 2010-03-18 | Bone-positioning reductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201631291U true CN201631291U (en) | 2010-11-17 |
Family
ID=43075762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201336549U Expired - Fee Related CN201631291U (en) | 2010-03-18 | 2010-03-18 | Bone-positioning reductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201631291U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103945780A (en) * | 2011-02-22 | 2014-07-23 | 齐默尔膝部创造物公司 | Navigation and positioning systems and guide instruments for joint repair |
| CN104997558A (en) * | 2015-07-16 | 2015-10-28 | 梁艳 | Orthopaedics nail-removing guiding device |
| CN105310755A (en) * | 2015-05-26 | 2016-02-10 | 闻泰医疗科技（上海）有限公司 | Shoulder joint scapula glenoid bone positioning device |
| CN105662571A (en) * | 2016-03-21 | 2016-06-15 | 段强民 | Same-plane and equal-angle swinging orthopaedic guide reset pliers |
| CN105726136A (en) * | 2016-01-28 | 2016-07-06 | 佛山市乙太医疗用品有限公司 | Elbow joint rotation center guider |
| CN106264682A (en) * | 2016-07-27 | 2017-01-04 | 王宇博 | Through cornu occipitale ventricular puncture guider |
-
2010
- 2010-03-18 CN CN2010201336549U patent/CN201631291U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103945780A (en) * | 2011-02-22 | 2014-07-23 | 齐默尔膝部创造物公司 | Navigation and positioning systems and guide instruments for joint repair |
| CN103945780B (en) * | 2011-02-22 | 2016-12-07 | 齐默尔膝部创造物公司 | Navigation and alignment system and for the guide instrument of joint repair |
| US9775639B2 (en) | 2011-02-22 | 2017-10-03 | Zimmer Knee Creations, Inc. | Navigation and positioning systems and guide instruments for joint repair |
| CN105310755A (en) * | 2015-05-26 | 2016-02-10 | 闻泰医疗科技（上海）有限公司 | Shoulder joint scapula glenoid bone positioning device |
| CN104997558A (en) * | 2015-07-16 | 2015-10-28 | 梁艳 | Orthopaedics nail-removing guiding device |
| CN104997558B (en) * | 2015-07-16 | 2017-10-24 | 孙守勇 | Orthopaedics takes nail guide |
| CN105726136A (en) * | 2016-01-28 | 2016-07-06 | 佛山市乙太医疗用品有限公司 | Elbow joint rotation center guider |
| CN105662571A (en) * | 2016-03-21 | 2016-06-15 | 段强民 | Same-plane and equal-angle swinging orthopaedic guide reset pliers |
| CN105662571B (en) * | 2016-03-21 | 2018-04-20 | 段强民 | A kind of coplanar orthopaedics angularly swung is oriented to reduction forceps |
| CN106264682A (en) * | 2016-07-27 | 2017-01-04 | 王宇博 | Through cornu occipitale ventricular puncture guider |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20130318 |