CN102836000B - Novel toothed screw pad assembly for cure of avulsion fracture - Google Patents
Novel toothed screw pad assembly for cure of avulsion fracture Download PDFInfo
- Publication number
- CN102836000B CN102836000B CN 201210293391 CN201210293391A CN102836000B CN 102836000 B CN102836000 B CN 102836000B CN 201210293391 CN201210293391 CN 201210293391 CN 201210293391 A CN201210293391 A CN 201210293391A CN 102836000 B CN102836000 B CN 102836000B
- Authority
- CN
- China
- Prior art keywords
- screw
- pad
- lock
- screw pad
- fixed arm
- 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
Links
Images
Abstract
The invention discloses a toothed screw assembly for a cure of an avulsion fracture. The 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 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 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 is close or involve the bone dirt, and 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, easily causes the sclerite explosion and fixing failure when fixing avulsion fracture; 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 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 constant intensity is little again; And for example grant number is that the patent document of CN202086564U discloses a kind of Screw; Described Screw was fixed the avulsion fracture position by 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 taking out, to patient's healthy generation hidden danger.
Summary of the invention
The present invention seeks to provide in order to overcome the deficiencies in the prior art the band tooth screw pad assembly for the treatment of avulsion fracture.
For achieving the above object, the technical solution used in the present invention is: the band tooth screw pad assembly for the treatment of avulsion fracture comprises screw pad, dog screw, lock screw; The top of described screw pad is provided with locating hole; The bottom of described screw pad is provided with a plurality of latches; The bottom of described screw pad is provided with fixed arm; The screw thread of described dog screw is fine thread; Described dog screw is arranged in the locating hole of screw pad; Position away from the screw pad on the described fixed arm is provided with lock hole; The screw thread of described lock screw head is coarse thread; Described lock screw is arranged in the lock hole of fixed arm.
Preferably, described fixed arm is arranged on the bottom of screw pad, on the position between two adjacent latches.
Preferably, the locating hole on the described screw pad is screwed hole, and the screw thread of the screw thread of locating hole and dog screw afterbody matches.
Preferably, the lock hole on the described fixed arm is screwed hole, and the screw thread of the screw thread of lock hole and lock screw afterbody matches.
Preferably, the external diameter of described lock screw is greater than the external diameter of dog screw.
Preferably, described fixed arm and screw pad are titanium alloy material and make.
Because the utilization of technique scheme, the present invention compared with prior art has following advantage:
The 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, and 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 coarse thread, assembly integral body firmly can be grabbed and be combined in injury site; Dog screw, lock screw are connected by 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 solution of the present invention is described further:
Accompanying drawing 1 is the axonometric chart of the band tooth screw pad assembly for the treatment of avulsion fracture of the present invention;
Accompanying drawing 2 is the front view of the band tooth screw pad assembly for the treatment of avulsion fracture of the present invention;
Accompanying drawing 3 is the sectional view of the band tooth screw pad assembly user mode for the treatment of avulsion fracture of the present invention;
Wherein: 1, screw pad; 2, dog screw; 3, lock screw; 4, latch; 5, fixed arm.
The specific embodiment
The present invention is described in further detail below in conjunction with drawings and the specific embodiments.
Accompanying drawing 1-2 is the band tooth screw pad assembly for the treatment of avulsion fracture of the present invention, comprises screw pad 1, dog screw 2, lock screw 3; Described screw pad 1 the top be provided with locating hole; The bottom of described screw pad 1 is provided with a plurality of latches 4; The bottom of described screw pad 1 is provided with fixed arm 5; Described fixed arm 5 is on the position between two adjacent latches 4; Position away from screw pad 1 on the described fixed arm 5 is provided with lock hole; Described locating hole and lock hole are screwed hole; The shape of the bone appearance similar of described screw pad 1 and latch 4 and fixed arm 5 compositions and fracture site; The screw thread of described dog screw 2 is fine thread or does not have screw thread; Described 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 described screw pad 1 and dog screw 2 afterbodys matches; The screw thread of described lock screw 3 heads is coarse thread; Described 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 described fixed arm 5 and lock screw 3 afterbodys matches; Described fixed arm 5 is titanium alloy material with screw pad 1 and makes.
As described in accompanying drawing 3, the band tooth screw pad assembly for the treatment of 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 by screwing in the locating hole on the screw pad 1 in the bone, at this moment fixed arm 5 screws in lock screw 3 in the bone by the lock hole on the fixed arm 5 owing to the positioning action of dog screw 2 is adjacent near the bone of injured bone again, finishes the installation of whole assembly.
The 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, the shape of the bone appearance similar of screw pad 1 and latch 4 and fixed arm 5 compositions and fracture site has 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 coarse thread, assembly integral body firmly can be grabbed and be combined in injury site; Dog screw 2, lock screw 3 and screw pad 1, fixed arm 5 are connected by threaded engagement, and therefore long-time the use can not produce the phenomenon that screw gets loose yet.
Above-described embodiment only is explanation technical conceive of the present invention and characteristics; its purpose is to allow the personage that is familiar with this technology can understand content of the present invention and is implemented; 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 band tooth screw pad assembly for the treatment of avulsion fracture comprises screw pad (1), dog screw (2); The top of described screw pad (1) is provided with locating hole; The bottom of described screw pad (1) is provided with a plurality of latches (4); Described dog screw (2) is arranged in the locating hole of screw pad (1); It is characterized in that: also comprise lock screw (3); The screw thread of described dog screw (2) is fine thread; The bottom of described screw pad (1) is provided with fixed arm (5); The position that described fixed arm (5) is gone up away from screw pad (1) is provided with lock hole; The screw thread of described lock screw (3) head is coarse thread; Described lock screw (3) is arranged in the lock hole of fixed arm (5).
2. the band tooth screw pad assembly for the treatment of avulsion fracture according to claim 1 is characterized in that: described fixed arm (5) is positioned on the position between two adjacent latches (4).
3. the band tooth screw pad assembly for the treatment of avulsion fracture according to claim 1, it is characterized in that: the locating hole on the described screw pad (1) is screwed hole, the screw thread of the screw thread of locating hole and dog screw (2) afterbody matches.
4. the band tooth screw pad assembly for the treatment of avulsion fracture according to claim 1, it is characterized in that: the lock hole on the described fixed arm (5) is screwed hole, the screw thread of the screw thread of lock hole and lock screw (3) afterbody matches.
5. the band tooth screw pad assembly for the treatment of avulsion fracture according to claim 1, it is characterized in that: the external diameter of described lock screw (3) is greater than the external diameter of dog screw (2).
6. the band tooth screw pad assembly for the treatment of avulsion fracture according to claim 1 is characterized in that: described fixed arm (5) is titanium alloy material with screw pad (1) and makes.
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 CN102836000A (en) | 2012-12-26 |
| CN102836000B true CN102836000B (en) | 2013-08-21 |
Family
ID=47363916
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 |
|---|---|
| CN (1) | CN102836000B (en) |
Families Citing this family (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 (7)
| 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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7604659B2 (en) * | 2004-11-09 | 2009-10-20 | Lee James M | Method and apparatus for repair of torn rotator cuff tendons |
-
2012
- 2012-08-17 CN CN 201210293391 patent/CN102836000B/en not_active Expired - Fee Related
Patent Citations (7)
| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102836000A (en) | 2012-12-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201912210U (en) | Bone plate for treating fracture and deformity of metatarsal bone | |
| WO2010106507A3 (en) | Hallux abducto valgus assemblies | |
| BR112015029211A2 (en) | cardiac tissue penetration devices, methods, and systems for treating congestive heart failure and other conditions | |
| CN203074840U (en) | Medical patella fixing part | |
| US10188430B2 (en) | Double-threaded bone screw | |
| CN203424981U (en) | Medical suture anchor | |
| CN204181701U (en) | The two barb anatomical plate in a kind of nearly joint | |
| CN102836000B (en) | Novel toothed screw pad assembly for cure of avulsion fracture | |
| CN201701289U (en) | Lag screw | |
| CN202821581U (en) | Novel toothed screw pad assembly for curing avulsion fracture | |
| CN202342170U (en) | Combined type steel plate used for fracture of distal clavicle | |
| CN201200469Y (en) | Intramedullary nail with locking hole with inner screw thread | |
| CN203138665U (en) | Bone-connecting locking screw adopting orthopedics kinesiology | |
| CN204909608U (en) | Kneecap locking pressurizing internal fixation device | |
| CN202086564U (en) | Primary and secondary combined screw | |
| CN205107865U (en) | Hoffa locking plate that fractures | |
| CN205411287U (en) | Self tapping type marrow internal fixation device suitable for long bone fracture | |
| CN204133590U (en) | Knee joint fusion steel plate | |
| CN208756138U (en) | Square halberd screw | |
| CN206261656U (en) | A kind of Medical absorbable magnesium alloy nail | |
| CN206534671U (en) | A kind of new medical rivet | |
| CN204839706U (en) | Dual fixer of stabilizing inside and outside fracture portion marrow | |
| CN201847766U (en) | Hollow anti-slip screw for patellar fracture internal fixation | |
| CN201790889U (en) | Medical extractor for thread-stripping screws | |
| CN204671259U (en) | A kind of fibula locking bone fracture plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20180817 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |