CN201847753U - Self-drilling traction screw - Google Patents
Self-drilling traction screw Download PDFInfo
- Publication number
- CN201847753U CN201847753U CN2010205440429U CN201020544042U CN201847753U CN 201847753 U CN201847753 U CN 201847753U CN 2010205440429 U CN2010205440429 U CN 2010205440429U CN 201020544042 U CN201020544042 U CN 201020544042U CN 201847753 U CN201847753 U CN 201847753U
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- China
- Prior art keywords
- screw
- screw rod
- traction
- drill bit
- drill
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- Expired - Fee Related
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Abstract
The utility model relates to a self-drilling traction screw which belongs to the technical field of orthopaedic surgery equipment and is used for avoiding damaging ulnar nerves and rapidly completing drilling and traction in one step. The utility model adopts the technical scheme that the self-drilling traction screw consists of a drill bit, a screw rod, a traction plate and a drill stock; the drill bit is connected at the front end of the screw rod; the drill stock is connected at the rear end of the screw rod; the screw rod is provided with screw threads; the traction plate is connected at the upper part of the screw rod; the axis of the drill stock is coincided with the axis of the screw rod; and the drill stock is matched with a chuck of an electric drill. When the self-drilling traction screw with the structure is in use, the drill bit is drilled into a skeleton and the screw rod is screwed into the skeleton along with the drill bit in a surgery, so that the operation of drilling a hole and screwing the traction screw is completed in one step. Therefore, the self-drilling traction screw is rapid and convenient, and overcomes the defects that the screw is screwed manually or the electric drill drills the hole and then the screw is screwed into the hole manually. The surgery quality is improved, the pain of a patient is reduced, and the screw is a traction instrument with high originality and practical value in a traction surgery and is valuable for popularization and application.
Description
Technical field
This utility model relates to the device that a kind of fracture operation traction is used, and belongs to the bone surgery equipment technical field.
Background technology
In bone surgery, traction is the treatment measure of often using.Wherein in the treatment of supracondylar fracture of the humerus, need just can undergo surgery after patient's the limbs detumescence, to draw during this period.The traction of traditional supracondylar fracture of the humerus is to cross the Kirschner wire that diameter is the 1.5-2.0 millimeter in proximal ulna portion, and the Kirschner wire two ends are installed on the traction bow, and traction bow is given and Kirschner wire tension force, and the upper end towing plate to traction bow carries out tractive then, realizes traction.The major defect of this conventional traction way is to hole laterally from the inboard of ulna, and ulnar nerve is arranged near the ulna inboard, is easy to accidentally injure ulnar nerve during boring, brings irremediable damage to the patient.
In order to address this problem, taked another kind of traction method abroad, promptly perpendicular to the proximal ulna portion on ulna surface by ulna dorsal part thenad sidetracking hole, extract drill bit then, be screwed into traction screw, there is the wing towing plate at the rear portion of traction screw, pulls on pull rope on towing plate.This method has solved the problem of accidentally injuring ulnar nerve in the conventional traction easily, needs first boring but also exist in the operation, and then twice alternation procedure of stubborn traction screw, has prolonged operating time, has increased patient's misery.The process of tightening traction screw simultaneously is manual finishing, exist rock, easily crooked, strengthen disadvantage such as patient's pain.Therefore, also there is improved necessity in this operation method.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of can avoid damaging ulnar nerve, quick, the disposable traction screw of brill certainly of finishing boring and traction.
The technical scheme that solves the problems of the technologies described above is:
A kind of from boring traction screw, it is made up of drill bit, screw rod, towing plate, drillstock, drill bit is connected the front end of screw rod, drillstock is connected the rear end of screw rod, screw thread is arranged on the screw rod, towing plate is connected the top of screw rod, and the axis of drillstock and the axis of screw rod coincide, and the dop of drillstock and electric drill is complementary.
Above-mentioned the length of described drill bit is 4-5mm from boring traction screw, and the diameter of drill bit is identical with the bar of screw rod footpath.
Above-mentioned the major diameter of thread of the forward and backward part of described screw rod is identical from boring traction screw, and the external diameter of screw thread is 1.5-5.0mm.
Above-mentioned the major diameter of thread of described screw front end part is less than the major diameter of thread at screw rod middle part and rear portion from boring traction screw, and the screw rod middle part is identical with the major diameter of thread at rear portion.
Above-mentioned from boring traction screw, described towing plate is an elongate in shape, also can be shapes such as semicircle or ellipse, and is vertical with screw rod, is distributed with a plurality of towing pads along its length, and towing plate and screw rod are for fixedlying connected or removably connecting.
Certainly the brill traction screw of this structure, bit drills is gone into skeleton in the operation, screw rod screws in thereupon, boring and be screwed into traction screw and once finish fast, convenient, has been avoided the manual manual all drawbacks that are screwed into screw of screw or first electric drill boring back that are screwed into, improved the quality of operation, having alleviated patient's misery, is the traction device of very creative and practical value in the traction operation, is worthy of popularization.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is user mode figure of the present utility model.
Labelling is as follows among the figure: drill bit 1, screw rod 2, towing plate 3, drillstock 4, screw thread 5, towing pad 6, cortical bone 7, medullary cavity 8.
The specific embodiment
Show among the figure that this utility model is made up of drill bit 1, screw rod 2, towing plate 3, drillstock 4.
Show among the figure that drill bit 1 is connected the front portion of screw rod 2,, drive screw rod 2 and screw in order on bone, to hole.Drill bit 1 can have multiple shape, as drill bit of spiral bit, the flat drill bit of triangle, rhizoma sparganic drill bit and other shape etc., all at the row of this utility model protection.The length of drill bit 1 is 4-5mm, and the diameter of drill bit 1 is identical with the bar footpath of screw rod 2.
Show among the figure, screw thread 5 is arranged on the screw rod 2, screw thread 5 has two kinds of situations, screw thread 5 external diameters of forward and backward part that both can be screw rod 2 are identical, also can be screw thread 5 external diameters of screw thread 5 external diameters of screw rod 2 fore-ends less than screw rod 2 middle parts and rear portion, screw thread 5 external diameters at screw rod 2 middle parts and rear portion are identical, the precession of being more convenient for like this.The external diameter of screw thread 5 is 1.5-5.0mm.
Show among the figure that towing plate 3 is an elongated plates, also can be shapes such as semicircle or ellipse.Towing plate 3 is connected the top of screw rod 2, and is vertical with screw rod 2, and towing plate 3 can be with screw rod 2 fixedlys connected, and also can adopt the mode of removably connecting, and promptly is provided with screw thread on screw rod 2, and towing plate 3 is fixed on the screw rod 2.Towing plate 3 is distributed with a plurality of towing pads 6 along its length, selects during for the connection pull rope.
Show among the figure that drillstock 4 is connected the top of towing plate 3, the axis of the axis of drillstock 4 and screw rod 2 coincides, and drillstock 4 is complementary with the dop of electric drill.
This utility model is installed in drillstock 4 on the dop of electric drill in use, aims at the dorsal part of proximal ulna and holes, and drill bit 1 back-connected screw is along with screw-in during boring.Can feel when drill bit 1 pierces cortical bone 7 has certain resistance, when squeezing into medullary cavity 8, drill bit 1 can feel that resistance reduces suddenly, when drill bit 1 continues to get into offside cortical bone 7 forward, can feel again and promptly finish boring and screw screw-in after resistance, drill bit 1 get out ulna.
During boring, if towing plate 3 can with screw rod 2 and drill bit 1 be holed separately, and then install towing plate 3 earlier for removably connecting.
This boring and screw-in traction screw are one step completed can to draw operation quickly and easily from boring traction screw, is not limited to use in the ulna traction of treatment supracondylar fracture of the humerus, can also use in the traction of other fracture is performed the operation.
Claims (5)
1. one kind is bored traction screw certainly, it is characterized in that: it is made up of drill bit [1], screw rod [2], towing plate [3], drillstock [4], drill bit [1] is connected the front end of screw rod [2], drillstock [4] is connected the rear end of screw rod [2], screw thread [5] is arranged on the screw rod [2], towing plate [3] is connected the top of screw rod [2], and the axis of the axis of drillstock [4] and screw rod [2] coincides, and drillstock [4] is complementary with the dop of electric drill.
2. according to claim 1 it is characterized in that: the length of described drill bit [1] is 4-5mm from boring traction screw, and the diameter of drill bit [1] is identical with the bar footpath of screw rod [2].
3. according to claim 1 and 2 from boring traction screw, it is characterized in that: screw thread [5] external diameter of described screw rod [2] fore-end is less than screw thread [5] external diameter at screw rod [2] middle part and rear portion, and screw rod [2] middle part is identical with screw thread [5] external diameter at rear portion.
4. according to claim 1 and 2 from boring traction screw, it is characterized in that: screw thread [5] external diameter of the forward and backward part of described screw rod [2] is identical, and the external diameter of screw thread [5] is 1.5-5.0mm.
5. according to claim 3 from boring traction screw, it is characterized in that: described towing plate [3] is for elongate in shape, or semicircle, ellipse, and is vertical with screw rod [2], be distributed with a plurality of towing pads [6] along its length, towing plate [3] and screw rod [2] are for fixedlying connected or removably connecting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205440429U CN201847753U (en) | 2010-09-27 | 2010-09-27 | Self-drilling traction screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205440429U CN201847753U (en) | 2010-09-27 | 2010-09-27 | Self-drilling traction screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201847753U true CN201847753U (en) | 2011-06-01 |
Family
ID=44090172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205440429U Expired - Fee Related CN201847753U (en) | 2010-09-27 | 2010-09-27 | Self-drilling traction screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201847753U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104771215A (en) * | 2015-04-15 | 2015-07-15 | 复旦大学附属金山医院 | Tractor for greater trochanter of femur |
| CN108095813A (en) * | 2017-12-22 | 2018-06-01 | 皖南医学院弋矶山医院 | For fixing the inner fixing device of posterior cruciate ligament of knee stop avulsion fracture |
-
2010
- 2010-09-27 CN CN2010205440429U patent/CN201847753U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104771215A (en) * | 2015-04-15 | 2015-07-15 | 复旦大学附属金山医院 | Tractor for greater trochanter of femur |
| CN108095813A (en) * | 2017-12-22 | 2018-06-01 | 皖南医学院弋矶山医院 | For fixing the inner fixing device of posterior cruciate ligament of knee stop avulsion fracture |
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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: 20110601 Termination date: 20120927 |