CN2879998Y - Nail hole locking structure for bone implanted product - Google Patents
Nail hole locking structure for bone implanted product Download PDFInfo
- Publication number
- CN2879998Y CN2879998Y CN 200620025679 CN200620025679U CN2879998Y CN 2879998 Y CN2879998 Y CN 2879998Y CN 200620025679 CN200620025679 CN 200620025679 CN 200620025679 U CN200620025679 U CN 200620025679U CN 2879998 Y CN2879998 Y CN 2879998Y
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- CN
- China
- Prior art keywords
- screw
- split ring
- bone
- nail hole
- opening loop
- 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 - Lifetime
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Abstract
The utility model discloses a nail hole locking structure for bone implanted product which relates to bone plate for spine, bone plate for limb fracture, spine nail-stick fixation system, etc. The structure is that a bone plate or a bone rod is provided with one or more hollow spherical chamber(s) for containing spherical opening loop(s) which can rotate at any angle inside the chamber. The inner hole of the opening loop produces tapered thread associated with a matching bone screw which is screwed into the bone by the spherical opening loop in clinic. The tapered thread at the head of the matching screw can be associated with the inner hole screw of the opening loop. At the associated limit position, the tapered thread generates a lateral force to expand the opening loop. The expanded opening loop is pressed tightly on the surface of the hollow spherical chamber to integrate the bolt, the opening loop and the spherical chamber and complete fixed connection. The locking structure has artful design, convenient and flexible clinical mounting and use, safety and reliability.
Description
Technical field
This utility model belongs to be imported medium in the human body or is passed to apparatus on the human body, relates to the nail hole latch-up structure of a kind of orthopaedics implant product that is used for blade plate or synthetism pitman that is used for the treatment of extremity or spinal fracture.
Background technology
In orthopaedics internal fixation implant, many places all can use bone screw, and generally speaking, bone screw is that the nail hole by implant is screwed on the skeleton, make skeleton, screw and blade plate (pitman) form an integral body, reach the effect of skeletal fixation.Pass commonly used both at home and abroad at present is circular light slide opening or screwed hole, the circular light slide opening can make screw when being screwed into skeleton, can adjust and the hole between angle, but its shortcoming is, occur under the osteoporotic situation running into the frequent stressed or skeleton that is fixed of screw, to take place loosening, screw can produce and follow closely the relative displacement in hole, and mobile screw will have a negative impact near nerve, tissue.Thread pore structure is to have made female thread in the nail hole, supporting screw head also has the external screw thread that cooperates with it, running under the frequent stressed or osteoporotic situation of screw, because screw and steel plate or pitman have formed overall structure, relative displacement can not take place in screw, but its shortcoming is, screw is when being screwed into, it is screwed into direction must be consistent with the screwed hole center position, can not regulate, and the motility of clinical operation is reduced greatly.
Summary of the invention
The purpose of this utility model is to solve the problem that existing nail hole exists in cooperating, provide a kind of can be when screw be screwed into any adjusting angle, can make screw and nail hole after being screwed into form whole latch-up structure again.
For achieving the above object, this utility model provides a kind of nail hole latch-up structure of orthopaedics implant product, comprise blade plate or synthetism pitman, it is characterized in that on blade plate or synthetism pitman, one or more spherical cavities being set, in spherical cavity, place inner split ring, place screw in the split ring and constitute with tapered thread.
The nail hole latch-up structure of described orthopaedics implant product, it is characterized in that spherical cavity is set to the concave arc shape, the split ring outer setting is the annulus of convex arc shape, split ring has an opening, split ring inside is provided with conical internal thread, the conical external screw thread of conical internal thread and the screw cap formation that can be connected.
The nail hole latch-up structure of described orthopaedics implant product is characterized in that, screw can be along arbitrarily angled rotation in spherical cavity by split ring.
The invention effect: the nail hole latch-up structure of orthopaedics implant product of the present utility model is simple, because spherical split ring is a waist drum shape structure, inside is provided with tapered thread, the external screw thread of this female thread and head of screw can cooperatively interact, split ring can be assembled in the hollow ball shape cavity of blade plate or synthetism pitman, the extrados of split ring contacts fully with the intrados of hollow ball shape cavity, simultaneously because split ring has elasticity, when being screwed into, supporting bone screw can make its expansion, can closely be press fitted on the intrados of hollow ball shape cavity, reach fixed effect, split ring 3 is clearance fit with spherical cavity 2, therefore can arbitrarily angledly regulate, the motility of clinical operation is improved greatly, clinical easy to install reliable.
Description of drawings
Fig. 1 is the nail hole latch-up structure blade plate sketch map of orthopaedics implant product of the present utility model.
Fig. 2 is the spherical cavity cutaway view of the nail hole latch-up structure of orthopaedics implant product of the present utility model.
Fig. 3 is the vertical view of split ring of the nail hole latch-up structure of orthopaedics implant product of the present utility model.
Fig. 4 is the cutaway view of split ring of the nail hole latch-up structure of orthopaedics implant product of the present utility model.
Fig. 5 is the supporting bone screw structural representation of nail hole latch-up structure of orthopaedics implant product of the present utility model.
Fig. 6 is the nail hole latch-up structure spherical cavity cut away view of attachment screw of orthopaedics implant product of the present utility model.
1: blade plate 2: spherical cavity
3: split ring 4: opening
5: conical internal thread 6: screw
7: the screw cap conical external screw thread
The specific embodiment
Describe detecting pen structure of the present utility model in detail below in conjunction with accompanying drawing, Fig. 1 is the nail hole latch-up structure blade plate sketch map of orthopaedics implant product of the present utility model.Fig. 2 is the spherical cavity cutaway view of the nail hole latch-up structure of orthopaedics implant product of the present utility model.Fig. 3 is the vertical view of split ring of the nail hole latch-up structure of orthopaedics implant product of the present utility model.Fig. 4 is the cutaway view of split ring of the nail hole latch-up structure of orthopaedics implant product of the present utility model.Fig. 5 is the supporting bone screw structural representation of nail hole latch-up structure of orthopaedics implant product of the present utility model.Fig. 6 is the nail hole latch-up structure spherical cavity cut away view of attachment screw of orthopaedics implant product of the present utility model.
Shown in Fig. 1-6, the nail hole latch-up structure of a kind of orthopaedics implant product of present embodiment is to be made of anterior cervical vertebrae blade plate 1, split ring 3, screw 6.
The nail hole latch-up structure of this orthopaedics implant product is in clinical using method: screw 6 is inserted in the split ring 3 of blade plates 1, because split ring 3 is clearance fit with spherical cavity 2, therefore be screwed on the direction and can arbitrarily angledly regulate at screw, the extreme position that is screwed at screw, split ring can closely be press fitted on the spherical cavity, screw, steel plate, split ring form an integral body, reach the effect of secure lock, and be clinical easy to install reliable.
This utility model synthetism latch-up structure is applicable on the orthopaedics internal fixation products such as metal bone fracture plate or synthetism rod.
Claims (3)
1, a kind of nail hole latch-up structure of orthopaedics implant product, comprise blade plate or synthetism pitman, it is characterized in that on blade plate or synthetism pitman, one or more spherical cavities being set, in spherical cavity, place inner split ring, place screw in the split ring and constitute with tapered thread.
2, the nail hole latch-up structure of orthopaedics implant product according to claim 1, it is characterized in that spherical cavity is set to the concave arc shape, the split ring outer setting is the annulus of convex arc shape, split ring has an opening, split ring inside is provided with conical internal thread, the conical external screw thread of conical internal thread and the screw cap formation that can be connected.
3, the nail hole latch-up structure of orthopaedics implant product according to claim 1 is characterized in that, screw can be along arbitrarily angled rotation in spherical cavity by split ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620025679 CN2879998Y (en) | 2006-03-31 | 2006-03-31 | Nail hole locking structure for bone implanted product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620025679 CN2879998Y (en) | 2006-03-31 | 2006-03-31 | Nail hole locking structure for bone implanted product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2879998Y true CN2879998Y (en) | 2007-03-21 |
Family
ID=37879836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620025679 Expired - Lifetime CN2879998Y (en) | 2006-03-31 | 2006-03-31 | Nail hole locking structure for bone implanted product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2879998Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101849856A (en) * | 2010-05-24 | 2010-10-06 | 胡火星 | Locking device used for cervical steel plate |
| CN105530894A (en) * | 2013-07-15 | 2016-04-27 | 亚洲大学校产学协力团 | Knee joint brace enabling three-dimensional movement |
| CN106236237A (en) * | 2016-08-30 | 2016-12-21 | 李岩 | Retrograde Wicresoft steel plate screw fixing system for fracture |
| CN110338894A (en) * | 2019-06-04 | 2019-10-18 | 迪恩医疗科技有限公司 | It can the fixed pedicle nail of double screws |
-
2006
- 2006-03-31 CN CN 200620025679 patent/CN2879998Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101849856A (en) * | 2010-05-24 | 2010-10-06 | 胡火星 | Locking device used for cervical steel plate |
| CN105530894A (en) * | 2013-07-15 | 2016-04-27 | 亚洲大学校产学协力团 | Knee joint brace enabling three-dimensional movement |
| CN106236237A (en) * | 2016-08-30 | 2016-12-21 | 李岩 | Retrograde Wicresoft steel plate screw fixing system for fracture |
| CN110338894A (en) * | 2019-06-04 | 2019-10-18 | 迪恩医疗科技有限公司 | It can the fixed pedicle nail of double screws |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Nail hole locking structure for bone implanted product Effective date of registration: 20120924 Granted publication date: 20070321 Pledgee: Bank of Dalian Co Tianjin branch Pledgor: Zhengtian Medical Equipments Co., Ltd., Tianjin Registration number: 2012990000557 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20130924 Granted publication date: 20070321 Pledgee: Bank of Dalian Co Tianjin branch Pledgor: Zhengtian Medical Equipments Co., Ltd., Tianjin Registration number: 2012990000557 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Nail hole locking structure for bone implanted product Effective date of registration: 20130924 Granted publication date: 20070321 Pledgee: Bank of Dalian Co Tianjin branch Pledgor: Zhengtian Medical Equipments Co., Ltd., Tianjin Registration number: 2013990000693 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20150519 Granted publication date: 20070321 Pledgee: Bank of Dalian Co Tianjin branch Pledgor: Zhengtian Medical Equipments Co., Ltd., Tianjin Registration number: 2013990000693 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070321 |
|
| EXPY | Termination of patent right or utility model |