CN102836000A - Novel toothed screw pad assembly for cure of avulsion fracture - Google Patents
Novel toothed screw pad assembly for cure of avulsion fracture Download PDFInfo
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- CN102836000A CN102836000A CN2012102933911A CN201210293391A CN102836000A CN 102836000 A CN102836000 A CN 102836000A CN 2012102933911 A CN2012102933911 A CN 2012102933911A CN 201210293391 A CN201210293391 A CN 201210293391A CN 102836000 A CN102836000 A CN 102836000A
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- screw
- pad
- lock
- screw pad
- fixed arm
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Abstract
The invention discloses a novel toothed screw assembly for a cure of an avulsion fracture. The novel toothed screw assembly comprises a screw pad, a locating screw and a locking screw. The top of the screw pad is provided with a locating hole. The bottom of the screw pad is provided with a plurality of clamping teeth and a fixing arm. According to the novel toothed screw assembly for the cure of the avulsion fracture, the screw pad, the clamping teeth and the fixing arm form a shape which is similar to the external shape of a fracture bone so that an injured part is well protected; being a thin screw, the locating screw can play a locating role and can not hurt the avulsion bone; being coarse threads, the threads on the head part of the locking thread can firmly claw the whole body of the assembly in the position of the injured part; and the locating screw and the locking screw are in fit connection with the screw pad and the fixing arm through threads so that phenomena of looseness of the screws can not happen after long-time utilization.
Description
Technical field
The present invention relates to the screw pad assembly, particularly treat the novel band tooth screw pad assembly of avulsion fracture, belong to avulsion fracture fixation kit technical field.
Background technology
Often run into the avulsion fracture of related ligament or joint capsule and the fracture around the bone in children dirt clinically.The avulsion fracture characteristics: sclerite is little, and is thin, and subsidiary have vital tissues such as joint capsule or ligament, and pulling force is big, and the easy explosion of sclerite fixedly the time, fixing difficulty; Bone in children dirt surrounding fracture characteristics: fracture end near or involve the bone dirt, thick inside-fixture rapid wear injury of the bone dirt causes anormogenesis; A few days ago, treat clinically avulsion fracture and bone in children the dirt surrounding fracture inside-fixture commonly used have: screw, Kirschner wire and steel wire etc.; Yet plain screw is bigger because of its diameter, when fixing avulsion fracture, is prone to cause the sclerite explosion and fixing failure; When bone fixation dirt surrounding fracture, rapid wear injury of the bone dirt causes local bone dirt abnormal development; The fixing above two kinds of fracture of Kirschner wire often cause fixing failure because of its easy withdraw of the needle and constant intensity are low, and the Kirschner wire tail end that withdraws from stimulates local soft tissue to sting out skin very entirely and causes infection outward; And steel wire often enough causes fracture end to be shifted because of constant intensity is little again; And for example grant number is that the patent document of CN202086564U discloses a kind of Screw; Said Screw was fixed the avulsion fracture position through sub-screw and cooperating of female screw, but this fixed form is after the injury heals, and female screw can be retained in the skeleton because of taking out, to patient's healthy generation hidden danger.
Summary of the invention
The present invention seeks to provide the novel band tooth screw pad assembly of treatment avulsion fracture for the deficiency that overcomes prior art.
For achieving the above object, the technical scheme that the present invention adopts is: the novel band tooth screw pad assembly of treatment avulsion fracture comprises screw pad, dog screw, lock screw; The top of said screw pad is provided with locating hole; The bottom of said screw pad is provided with a plurality of latches; The bottom of said screw pad is provided with fixed arm; The screw thread of said dog screw is a fine thread; Said dog screw is arranged in the locating hole of screw pad; Position away from the screw pad on the said fixed arm is provided with lock hole; The screw thread of said lock screw head is a coarse thread; Said lock screw is arranged in the lock hole of fixed arm.
Preferably, said fixed arm is arranged on the bottom of screw pad, on the position between two adjacent latches.
Preferably, the locating hole on the said screw pad is a screwed hole, and the screw thread of the screw thread of locating hole and dog screw afterbody matches.
Preferably, the lock hole on the said fixed arm is a screwed hole, and the screw thread of the screw thread of lock hole and lock screw afterbody matches.
Preferably, the external diameter of said lock screw is greater than the external diameter of dog screw.
Preferably, said fixed arm and screw pad are titanium alloy material and process.
Because the utilization of technique scheme, the present invention compared with prior art has advantage:
The novel band tooth screw pad assembly of the present invention program's treatment avulsion fracture; Comprise screw pad, dog screw, lock screw; The screw pad is provided with latch, fixed arm; The shape of the bone appearance similar of screw pad and latch and fixed arm composition and fracture site has well been protected the injury; Dog screw is thin screw, plays positioning action at bone, can not damage the bone of avulsion, and the screw thread of lock screw head is a coarse thread, can assembly integral body firmly be grabbed and be combined in injury site; Dog screw, lock screw are connected through threaded engagement with screw pad, fixed arm, and therefore long-time the use can not produce the phenomenon that screw gets loose yet.
Description of drawings
Below in conjunction with accompanying drawing technical scheme of the present invention is described further:
Accompanying drawing 1 is the axonometric chart of the novel band tooth screw pad assembly of treatment avulsion fracture of the present invention;
Accompanying drawing 2 is the front view of the novel band tooth screw pad assembly of treatment avulsion fracture of the present invention;
Accompanying drawing 3 is the sectional view of the novel band tooth screw pad assembly user mode of treatment avulsion fracture of the present invention;
Wherein: 1, screw pad; 2, dog screw; 3, lock screw; 4, latch; 5, fixed arm.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is done further detailed description.
Accompanying drawing 1-2 is the novel band tooth screw pad assembly of treatment avulsion fracture of the present invention, comprises screw pad 1, dog screw 2, lock screw 3; Said screw pad 1 the top be provided with locating hole; The bottom of said screw pad 1 is provided with a plurality of latches 4; The bottom of said screw pad 1 is provided with fixed arm 5; Said fixed arm 5 is on the position between two adjacent latches 4; Position away from screw pad 1 on the said fixed arm 5 is provided with lock hole; Said locating hole and lock hole are screwed hole; Said screw pad 1 and latch 4 and the shape of fixed arm 5 compositions with the bone appearance similar of fracture site; The screw thread of said dog screw 2 is fine thread or does not have screw thread; Said dog screw 2 is arranged in the locating hole of screw pad 1; The screw thread of the screw thread of the locating hole of said screw pad 1 and dog screw 2 afterbodys matches; The screw thread of said lock screw 3 heads is a coarse thread; Said lock screw 3 is arranged in the lock hole of fixed arm 5; The screw thread of the screw thread of the lock hole of said fixed arm 5 and lock screw 3 afterbodys matches; Said fixed arm 5 is titanium alloy material with screw pad 1 and processes.
Of accompanying drawing 3; The novel band tooth screw pad assembly of treatment avulsion fracture of the present invention in use; Earlier screw pad 1 is fitted in injured bone position; And latch 4 sticked in the bone around the injured bone, again with dog screw 2 through screwing in the locating hole on the screw pad 1 in the bone, at this moment fixed arm 5 is because the positioning action of dog screw 2 is adjacent near the bone of injured bone; Again lock screw 3 is screwed in the bone through the lock hole on the fixed arm 5, accomplish the installation of whole assembly.
The novel band tooth screw pad assembly of the present invention program's treatment avulsion fracture; Comprise screw pad 1, dog screw 2, lock screw 3; Screw pad 1 is provided with latch 4, fixed arm 5; Screw pad 1 and latch 4 and the shape of fixed arm 5 compositions with the bone appearance similar of fracture site have well been protected the injury; Dog screw 2 is thin screw, plays positioning action at bone, can not damage the bone of avulsion, and the screw thread of lock screw 3 heads is a coarse thread, can assembly integral body firmly be grabbed and be combined in injury site; Dog screw 2, lock screw 3 and screw pad 1, fixed arm 5 are connected through threaded engagement, and therefore long-time the use can not produce the phenomenon that screw gets loose yet.
The foregoing description only is explanation technical conceive of the present invention and characteristics; Its purpose is to let the personage that is familiar with this technology can understand content of the present invention and implements; Can not limit protection scope of the present invention with this; All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (6)
1. the novel band tooth screw pad assembly of treatment avulsion fracture is characterized in that: comprise screw pad (1), dog screw (2), lock screw (3); The top of said screw pad (1) is provided with locating hole; The bottom of said screw pad (1) is provided with a plurality of latches (4); The bottom of said screw pad (1) is provided with fixed arm (5); The screw thread of said dog screw (2) is a fine thread; Said dog screw (2) is arranged in the locating hole of screw pad (1); The position that said fixed arm (5) is gone up away from screw pad (1) is provided with lock hole; The screw thread of said lock screw (3) head is a coarse thread; Said lock screw (3) is arranged in the lock hole of fixed arm (5).
2. the novel band tooth screw pad assembly of treatment avulsion fracture according to claim 1, it is characterized in that: said fixed arm (5) is arranged on the bottom of screw pad (1), is positioned on the position between two adjacent latches (4).
3. the novel band tooth screw pad assembly of treatment avulsion fracture according to claim 1, it is characterized in that: the locating hole on the said screw pad (1) is a screwed hole, the screw thread of the screw thread of locating hole and dog screw (2) afterbody matches.
4. the novel band tooth screw pad assembly of treatment avulsion fracture according to claim 1, it is characterized in that: the lock hole on the said fixed arm (5) is a screwed hole, the screw thread of the screw thread of lock hole and lock screw (3) afterbody matches.
5. the novel band tooth screw pad assembly of treatment avulsion fracture according to claim 1, it is characterized in that: the external diameter of said lock screw (3) is greater than the external diameter of dog screw (2).
6. the novel band tooth screw pad assembly of treatment avulsion fracture according to claim 1 is characterized in that: said fixed arm (5) is titanium alloy material with screw pad (1) and processes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210293391 CN102836000B (en) | 2012-08-17 | 2012-08-17 | Novel toothed screw pad assembly for cure of avulsion fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210293391 CN102836000B (en) | 2012-08-17 | 2012-08-17 | Novel toothed screw pad assembly for cure of avulsion fracture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102836000A true CN102836000A (en) | 2012-12-26 |
| CN102836000B CN102836000B (en) | 2013-08-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210293391 Expired - Fee Related CN102836000B (en) | 2012-08-17 | 2012-08-17 | Novel toothed screw pad assembly for cure of avulsion fracture |
Country Status (1)
| Country | Link |
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| CN (1) | CN102836000B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104523355A (en) * | 2014-12-31 | 2015-04-22 | 上海晟实医疗器械科技有限公司 | Tail end cartilage connecting and fixing plate |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5720753A (en) * | 1991-03-22 | 1998-02-24 | United States Surgical Corporation | Orthopedic fastener |
| EP1120087A2 (en) * | 2000-01-28 | 2001-08-01 | Depuy Orthopaedics, Inc. | Apparatus for affixing tissue repair material to bone |
| CN2451059Y (en) * | 2000-11-30 | 2001-10-03 | 彭庆州 | Tibia intercondylar avulsion fracture reduction fixer |
| US6569186B1 (en) * | 2000-10-05 | 2003-05-27 | Biomet, Inc. | Soft tissue screw and fixation device |
| US20060100629A1 (en) * | 2004-11-09 | 2006-05-11 | Lee James M | Method and apparatus for repair of torn rotator cuff tendons |
| CN202086564U (en) * | 2010-11-24 | 2011-12-28 | 石岩 | Primary and secondary combined screw |
| CN202313688U (en) * | 2011-11-08 | 2012-07-11 | 刘杰 | Olecroanon intramedullary pressurizing pin board |
| CN202821581U (en) * | 2012-08-17 | 2013-03-27 | 苏州瑞华医院有限公司 | Novel toothed screw pad assembly for curing avulsion fracture |
-
2012
- 2012-08-17 CN CN 201210293391 patent/CN102836000B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5720753A (en) * | 1991-03-22 | 1998-02-24 | United States Surgical Corporation | Orthopedic fastener |
| EP1120087A2 (en) * | 2000-01-28 | 2001-08-01 | Depuy Orthopaedics, Inc. | Apparatus for affixing tissue repair material to bone |
| US6569186B1 (en) * | 2000-10-05 | 2003-05-27 | Biomet, Inc. | Soft tissue screw and fixation device |
| CN2451059Y (en) * | 2000-11-30 | 2001-10-03 | 彭庆州 | Tibia intercondylar avulsion fracture reduction fixer |
| US20060100629A1 (en) * | 2004-11-09 | 2006-05-11 | Lee James M | Method and apparatus for repair of torn rotator cuff tendons |
| CN202086564U (en) * | 2010-11-24 | 2011-12-28 | 石岩 | Primary and secondary combined screw |
| CN202313688U (en) * | 2011-11-08 | 2012-07-11 | 刘杰 | Olecroanon intramedullary pressurizing pin board |
| CN202821581U (en) * | 2012-08-17 | 2013-03-27 | 苏州瑞华医院有限公司 | Novel toothed screw pad assembly for curing avulsion fracture |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104523355A (en) * | 2014-12-31 | 2015-04-22 | 上海晟实医疗器械科技有限公司 | Tail end cartilage connecting and fixing plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102836000B (en) | 2013-08-21 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20180817 |