CN202821581U - Novel toothed screw pad assembly for curing avulsion fracture - Google Patents
Novel toothed screw pad assembly for curing avulsion fracture Download PDFInfo
- Publication number
- CN202821581U CN202821581U CN 201220408437 CN201220408437U CN202821581U CN 202821581 U CN202821581 U CN 202821581U CN 201220408437 CN201220408437 CN 201220408437 CN 201220408437 U CN201220408437 U CN 201220408437U CN 202821581 U CN202821581 U CN 202821581U
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- screw
- pad
- screw pad
- lock
- fixed arm
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Abstract
The utility model relates to a novel toothed screw pad assembly for curing avulsion fracture. The assembly comprises a screw pad, a positioning screw and a locking screw, wherein a positioning hole is arranged at the top of the screw pad, a plurality of clamping teeth are arranged at the bottom of the screw pad, and a fixing arm is arranged at the bottom of the screw pad. According to the assembly, the screw pad, clamping teeth and the fixing arm form a shape which is similar to the shape of the bone of the fracture position, the hurt position can be protected well, the positioning screw is a thin screw and can position the bone, the bone cannot be hurt and avulsed, the head portion of the locking screw is a thick-tooth thread, the whole assembly can be clamped to the hurt position firmly, the positioning screw, the locking screw, the screw pad and the fixing arm are connected in a fit mode through threads, and the screw cannot be loosened after the assembly is used for a long time.
Description
Technical field
This utility model relates to the screw pad assembly, particularly treats the Novel belt tooth screw pad assembly of avulsion fracture, belongs to avulsion fracture fixation kit technical field.
Background technology
Often run into clinically the avulsion fracture of related ligament or joint capsule and the fracture around the bone in children dirt.The avulsion fracture characteristics: sclerite is little, and is thin, is accompanied with the vital tissues such as joint capsule or ligament, and pulling force is large, 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 larger because of its diameter, easily causes the sclerite explosion and fix unsuccessfully 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 are because of its easy withdraw of the needle and constant intensity is low often causes fix unsuccessfully, and the Kirschner wire tail end stimulation local soft tissue that withdraws from is very entirely stung out skin and caused 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.
The utility model content
This utility model purpose is the Novel belt tooth screw pad assembly that the treatment avulsion fracture is provided in order to overcome the deficiencies in the prior art.
For achieving the above object, the technical solution adopted in the utility model is: the Novel belt 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; Be provided with lock hole on the position away from the screw pad on the described fixed arm; 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, this utility model compared with prior art has following advantages:
The Novel belt tooth screw pad assembly of the treatment avulsion fracture of this utility model scheme, comprise screw pad, dog screw, lock screw, be provided with latch, fixed arm on the screw pad, 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 solutions of the utility model are described further:
Accompanying drawing 1 is the axonometric chart of the Novel belt tooth screw pad assembly for the treatment of avulsion fracture described in the utility model;
Accompanying drawing 2 is the front view of the Novel belt tooth screw pad assembly for the treatment of avulsion fracture described in the utility model;
Accompanying drawing 3 is the sectional view of the Novel belt tooth screw pad assembly user mode for the treatment of avulsion fracture described in the utility model;
Wherein: 1, screw pad; 2, dog screw; 3, lock screw; 4, latch; 5, fixed arm.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and the specific embodiments.
Accompanying drawing 1-2 is the Novel belt tooth screw pad assembly for the treatment of avulsion fracture described in the utility model, 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; Be provided with lock hole on the position away from screw pad 1 on the described fixed arm 5; 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 without 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 Novel belt tooth screw pad assembly for the treatment of avulsion fracture of the present utility model in use, first 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 is owing to the positioning action of dog screw 2 is adjacent near the bone of injured bone, again lock screw 3 is screwed in the bone by the lock hole on the fixed arm 5, finish the installation of whole assembly.
The Novel belt tooth screw pad assembly of the treatment avulsion fracture of this utility model scheme, comprise screw pad 1, dog screw 2, lock screw 3, be provided with latch 4, fixed arm 5 on the screw pad 1, 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.
Below only be concrete exemplary applications of the present utility model, protection domain of the present utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technical scheme of formation, all drop within this utility model rights protection scope.
Claims (6)
1. the Novel belt tooth screw pad assembly for the treatment of avulsion fracture is characterized in that: comprise screw pad (1), dog screw (2), lock screw (3); 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); The bottom of described screw pad (1) is provided with fixed arm (5); The screw thread of described dog screw (2) is fine thread; Described dog screw (2) is arranged in the locating hole of screw pad (1); Described fixed arm (5) is provided with lock hole on the upper position away from screw pad (1); 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 Novel belt tooth screw pad assembly for the treatment of avulsion fracture according to claim 1, it is characterized in that: described 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 belt 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 Novel belt 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 Novel belt 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 Novel belt 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 201220408437 CN202821581U (en) | 2012-08-17 | 2012-08-17 | Novel toothed screw pad assembly for curing avulsion fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220408437 CN202821581U (en) | 2012-08-17 | 2012-08-17 | Novel toothed screw pad assembly for curing avulsion fracture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202821581U true CN202821581U (en) | 2013-03-27 |
Family
ID=47933396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220408437 Withdrawn - After Issue CN202821581U (en) | 2012-08-17 | 2012-08-17 | Novel toothed screw pad assembly for curing avulsion fracture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202821581U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102836000A (en) * | 2012-08-17 | 2012-12-26 | 苏州瑞华医院有限公司 | Novel toothed screw pad assembly for cure of avulsion fracture |
-
2012
- 2012-08-17 CN CN 201220408437 patent/CN202821581U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102836000A (en) * | 2012-08-17 | 2012-12-26 | 苏州瑞华医院有限公司 | Novel toothed screw pad assembly for cure of avulsion fracture |
| CN102836000B (en) * | 2012-08-17 | 2013-08-21 | 苏州瑞华医院有限公司 | Novel toothed screw pad assembly for cure of avulsion fracture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130327 Effective date of abandoning: 20130821 |
|
| RGAV | Abandon patent right to avoid regrant |