CN201617937U - Locking steel plate device for fixing skeleton - Google Patents
Locking steel plate device for fixing skeleton Download PDFInfo
- Publication number
- CN201617937U CN201617937U CN2010201326462U CN201020132646U CN201617937U CN 201617937 U CN201617937 U CN 201617937U CN 2010201326462 U CN2010201326462 U CN 2010201326462U CN 201020132646 U CN201020132646 U CN 201020132646U CN 201617937 U CN201617937 U CN 201617937U
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- locking
- screw
- steel plate
- mentioned
- screwed hole
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Abstract
The utility model discloses a locking steel plate device for fixing skeleton, including a locking screw, a locking steel plate provided with a locking screwed hole, a first locking sleeve which external diameter is identical to that of the head section of the locking screw, and a second locking sleeve which inner diameter is slightly more than that of the head section of the locking screw; the locking screwed hole is composed of a main screwed hole and an assist screwed hole communicated each other coaxially, the main screwed hole is corresponded to the head section of the locking screw, the external side wall of an operating end of the first locking sleeve is provided with a screw thread corresponding to the main screwed hole, and the external side wall of the operating end of the second locking sleeve is provided with screw thread corresponding to the assist screwed hole; and the first locking sleeve is longer than the second locking sleeve. According to the utility model, the locking screw is guided by the second locking sleeve so as to ensure the axial cord of the locking screw to be identical to the axial cord of the main screwed hole of the locking steel plate to place the locking screw along a correct direction to prevent the screw from thread alternating and reduce possibility of injuring circumference soft tissue to shorten operation time.
Description
Technical field
This utility model relates to a kind of medical equipment, specifically is a kind of locking steel plate device of fix bone.
Background technology
The locking steel plate device of existing fixing fracture, the general employing by locking steel plate that has the locking screw thread hole and the skeletal fixation device that constitutes of the lock screw that matches of locking screw thread hole therewith, after screw is screwed into the locking screw thread hole of locking steel plate during use, form a kind of angle fixing device.
During use, if exist the angles that become to cause finally that lock screw is fixing fails between lock screw and the locking screw thread axially bored line greater than 5 degree, therefore the axis that must carefully operate with the locking screw thread hole of assurance lock screw and steel plate is consistent, this carry out Wicresoft may be quite difficult when operating.The locking steel plate device of existing fix bone, generally be to be screwed into lock screw by the torque limited spanner, lock screw is in being screwed into locking screw thread hole process like this, the axis in the locking screw thread hole on lock screw and the locking steel plate is difficult to be consistent, screw changes its course easily, and this occurs in metaphysis especially easily, causes lock screw and locking steel plate generation thread alternating, influence fixed effect, and be difficult to take out in the future; And, make lock screw not insert after lock screw changes its course, cause the lock screw linear measure longimetry inaccurate, pass the offside cortical bone and then may cause vascellum laterale, neural damage along original correct direction, this just needs to insert lock screw again again, also can increase operating time; And operation is screwed in the process of lock screw in Wicresoft, and lock screw and nearside surrounding soft tissue are twined, and damage surrounding soft tissue.
The utility model content
The purpose of this utility model provides the locking steel plate device of the fix bone that a kind of axis that can make the locking screw thread hole of lock screw and locking steel plate easily is consistent.
The technical solution of the utility model is such: a kind of locking steel plate device of fix bone comprises lock screw and the locking steel plate that offers the locking screw thread hole; Corresponding to first locking bushing of head that also comprises external diameter and above-mentioned lock screw, and internal diameter is slightly larger than second locking bushing of the head of above-mentioned lock screw; Above-mentioned locking screw thread hole is by being connected and the main thread hole and the auxilliary screwed hole of coaxial setting constitute, above-mentioned main thread hole and the corresponding setting of the head of above-mentioned lock screw, the lateral wall of the working end of above-mentioned first locking bushing is provided with and the corresponding screw thread in above-mentioned main thread hole, above-mentioned auxilliary screwed hole is corresponding with the external diameter of the working end of above-mentioned second locking bushing, and the lateral wall of the working end of above-mentioned second locking bushing is provided with and the corresponding screw thread of above-mentioned auxilliary screwed hole; Above-mentioned first locking bushing is longer than above-mentioned second locking bushing.
After adopting such scheme, during this utility model work, locking steel plate is positioned over the desired position, again first locking bushing is arranged in second locking bushing, and the working end of first locking bushing is screwed together in the main thread hole, the working end of second locking bushing is screwed together in the auxilliary screwed hole, boring bar tool by matching then, the drill bit of boring bar tool is passed first locking bushing and hole to bone in the locking screw thread hole, bored after the hole withdraws from drill bit, again first locking bushing is screwed off, at last lock screw is penetrated to the locking screw by second locking bushing, and be screwed in the bone by the screwdriver that matches main part with lock screw, the head of lock screw is screwed together in the main thread hole, second locking bushing is screwed off to get final product at last.The beneficial effects of the utility model are: lead by first sleeve when bone is holed; auxilliary screwed hole by locking steel plate matches with the working end of second locking bushing; lock screw is led; thereby lock screw is consistent under the second telescopic protection and guiding with the axis in the main thread hole of locking steel plate; insert along correct direction safety; avoid the screw thread alternating, and reduce the probability of surrounding soft tissue's damage, shorten operating time.
Description of drawings
Fig. 1 is the structural representation of bore state of the present utility model;
Fig. 2 is the exploded view of Fig. 1;
Structural representation when Fig. 3 installs lock screw for this utility model;
Fig. 4 is the exploded view of Fig. 3;
Fig. 5 is the cut-away enlarged view in the locking screw thread hole of locking steel plate in this utility model;
Fig. 6 is the cut-away enlarged view in the another kind of locking screw thread hole of locking steel plate in this utility model;
Fig. 7 is the enlarged drawing of overlooking in the locking screw thread hole of locking steel plate in this utility model;
Fig. 8 is the enlarged drawing of overlooking in the another kind of locking screw thread hole of locking steel plate in this utility model.
The specific embodiment
The locking steel plate device of a kind of fix bone of the present utility model shown in Fig. 1-8, comprises lock screw 1, locking steel plate 2, interior locking bushing 3 and locks sleeve 4 outward.
Its thickness direction of locking steel plate 2 upper edges offers one or more locking screw threads hole 21, and locking screw thread hole 21 is by being connected and the main thread hole 211 and the auxilliary screwed hole 212 of coaxial setting constitute, the head 11 corresponding settings of main thread hole 211 and lock screw 1.
The external diameter of interior locking bushing 3 is consistent with the head 11 of lock screw 1, and the internal diameter that locks sleeve 4 outward is slightly larger than the head 11 of lock screw 11 (external diameter of locking bushing 3 in promptly also being slightly larger than).Interior locking bushing 3 and outer locking sleeve 4 have active section 31,41 and handling section 32,42 respectively, the active section 41 of locking bushing 4 in the active section 31 of interior locking bushing 3 is longer than.The free end of active section 31 is the working end of interior locking bushing 3, the free end of active section 41 is the working end of outer locking sleeve 4, the lateral wall of the working end of interior locking bushing 3 is provided with and main thread hole 211 corresponding screw threads 311, auxilliary screwed hole 212 is corresponding with the external diameter of the working end of outer locking sleeve 4, and the lateral wall that locks the working end of sleeve 4 outward is provided with and assists screwed hole 212 corresponding screw threads 411.
During this utility model work, locking steel plate 2 is positioned over the desired position, as Fig. 1,2, shown in 5, again interior locking bushing 3 is arranged in the outer locking sleeve 4, and the working end of interior locking bushing 3 is screwed together in the main thread hole 211, the working end that locks sleeve 4 outward is screwed together in the auxilliary screwed hole 212, boring bar tool by matching then, locking bushing 3 and the 21 pairs of bones in locking screw thread hole were holed in the drill bit of boring bar tool passed, bored after the hole withdraws from drill bit, as Fig. 3,4, shown in 5, again interior locking bushing 3 is screwed off, and with lock screw 1 by outer locking sleeve 4 penetrate to the locking screw 21 in, and be screwed in the bone by the screwdriver 5 that matches main part 12 with lock screw 1, the head 11 of lock screw 1 is screwed together in the main thread hole 211, will lock sleeve 4 at last outward and screw off and get final product.
The beneficial effects of the utility model are: lead by interior locking bushing 3 when bone is holed; auxilliary screwed hole 212 by locking steel plate 2 matches with the working end of outer locking sleeve 4; lock screw 1 is led; thereby lock screw 1 protection of locking bushing 4 outside and guiding are consistent down with the axis in the main thread hole 211 of locking steel plate 2; insert along correct direction safety; avoid the screw thread alternating; and reduce the probability that surrounding soft tissue is damaged, shorten operating time.
The structure of the another kind of screwed hole of locking steel plate 2 in this utility model is shown in Fig. 6,8, for offering the composite holes 22 that circular hole 221 and pressurization hole 222 combine.
Claims (1)
1. the locking steel plate device of a fix bone comprises lock screw and the locking steel plate that offers the locking screw thread hole; It is characterized in that: also comprise corresponding to first locking bushing of head of external diameter and above-mentioned lock screw, and internal diameter is slightly larger than second locking bushing of the head of above-mentioned lock screw; Above-mentioned locking screw thread hole is by being connected and the main thread hole and the auxilliary screwed hole of coaxial setting constitute, above-mentioned main thread hole and the corresponding setting of the head of above-mentioned lock screw, the lateral wall of the working end of above-mentioned first locking bushing is provided with and the corresponding screw thread in above-mentioned main thread hole, above-mentioned auxilliary screwed hole is corresponding with the external diameter of the working end of above-mentioned second locking bushing, and the lateral wall of the working end of above-mentioned second locking bushing is provided with and the corresponding screw thread of above-mentioned auxilliary screwed hole; Above-mentioned first locking bushing is longer than above-mentioned second locking bushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201326462U CN201617937U (en) | 2010-03-10 | 2010-03-10 | Locking steel plate device for fixing skeleton |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201326462U CN201617937U (en) | 2010-03-10 | 2010-03-10 | Locking steel plate device for fixing skeleton |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201617937U true CN201617937U (en) | 2010-11-03 |
Family
ID=43021388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201326462U Expired - Fee Related CN201617937U (en) | 2010-03-10 | 2010-03-10 | Locking steel plate device for fixing skeleton |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201617937U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014032522A1 (en) * | 2012-08-30 | 2014-03-06 | 上海微创骨科医疗科技有限公司 | Combination-type locking screw used for bone plate and bone plate system comprising same |
| CN108814699A (en) * | 2018-06-07 | 2018-11-16 | 河北医科大学第三医院 | A kind of locking bone fracture plate that can be accurately placed in lock screw |
| CN108852496A (en) * | 2018-05-15 | 2018-11-23 | 杭州三坛医疗科技有限公司 | The Attitude Display System of guide channel and guide channel |
| CN111839703A (en) * | 2020-07-22 | 2020-10-30 | 福州市第二医院 | Locking sleeve and fracture reduction tool set |
-
2010
- 2010-03-10 CN CN2010201326462U patent/CN201617937U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014032522A1 (en) * | 2012-08-30 | 2014-03-06 | 上海微创骨科医疗科技有限公司 | Combination-type locking screw used for bone plate and bone plate system comprising same |
| CN108852496A (en) * | 2018-05-15 | 2018-11-23 | 杭州三坛医疗科技有限公司 | The Attitude Display System of guide channel and guide channel |
| CN108814699A (en) * | 2018-06-07 | 2018-11-16 | 河北医科大学第三医院 | A kind of locking bone fracture plate that can be accurately placed in lock screw |
| CN111839703A (en) * | 2020-07-22 | 2020-10-30 | 福州市第二医院 | Locking sleeve and fracture reduction tool set |
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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: 20101103 Termination date: 20130310 |