CN203524759U - Universal locking bone plate and screw system - Google Patents
Universal locking bone plate and screw system Download PDFInfo
- Publication number
- CN203524759U CN203524759U CN201320587844.1U CN201320587844U CN203524759U CN 203524759 U CN203524759 U CN 203524759U CN 201320587844 U CN201320587844 U CN 201320587844U CN 203524759 U CN203524759 U CN 203524759U
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- China
- Prior art keywords
- screw
- locking
- bone plate
- locking ring
- universal
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- 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
- 210000000988 bone and bone Anatomy 0.000 title abstract description 9
- 206010017076 Fracture Diseases 0.000 claims description 14
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 claims description 4
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 4
- 230000005855 radiation Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 6
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000002513 implantation Methods 0.000 description 4
- 208000010392 Bone Fractures Diseases 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model discloses a universal locking bone plate and screw system which comprises a bone plate, locking rings and screws. At least two of holes which are used for penetrating the screws in the bone plate are spherical surface holes. Internal threads and gaps are formed in the locking rings, and sinking grooves are formed in the upper end faces of the locking rings. External threads are arranged on the screws, the spherical surface holes are matched with the locking rings, the internal threads and the external threads are mutually matched, and the thread depth of the external threads becomes smaller continuously toward the head direction of the screws. The universal locking bone plate and screw system has the advantages of being wide in selection range of implanting directions and good in locking effect.
Description
Technical field
This utility model relates to a kind of orthopedic medical device, particularly relates to a kind of locking bone fracture plate screw system.
Background technology
For locking bone fracture plate screw system fixing in orthopaedics, mainly lock screw and blade plate, consist of clinically, the angle between lock screw and blade plate is predefined.In order to make the lock screw in implantable bone there is best fixed effect, require the lock screw must be by specific direction implantable bone; Due to the different of damaged portion of fracturing, and the skeletal shape between Different Individual there are differences, therefore in clinical practice, often there is implantation direction and the best inconsistent contradiction of direction of implanting setting between lock screw and steel plate in this locking bone fracture plate screw system, affects surgical effect.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of Universal locking fracture bone plate screw system, and the universal lock screw in this system has advantages of that the set direction of implantation scope is large, locking effect good.
For achieving the above object, the technical solution of the utility model is as follows: a kind of Universal locking fracture bone plate screw system, and this system comprises blade plate, locking ring and screw, the hole that wears screw on described blade plate has two at least for sphere hole; Described locking ring is provided with female thread and breach, and its upper surface is provided with deep gouge; Described screw is provided with external screw thread, and described sphere hole mates with locking ring, and described female thread and external screw thread cooperatively interact, and described externally threaded depth of threat shoals continuously towards the direction of screw head.
Preferably, the quantity of described deep gouge is 4, take locking ring axis as axis of symmetry symmetrical by mind-set fringe radiation.
Preferably, the length of described breach is 1/9～2/9 of locking ring internal diameter.
Preferably, the quantity of described sphere hole is at least two.
Preferably, described locking ring is made by medical Ti-50.5Ni Nitinol marmem.
The beneficial effect of technical solutions of the utility model is:
Due between locking ring and sphere hole for sphere coordinates, therefore, before wearing lock screw locking, locking ring can be made universal rotational in sphere hole, the implantation direction of lock screw can be selected in a larger scope.
2. because locking ring is provided with breach, therefore, when screw screws in after locking ring, just can force retainer ring to expand outwardly, locking ring just embeds the inwall of sphere hole, has significantly improved locking effect.
Accompanying drawing explanation
Fig. 1-Fig. 4 is a kind of concrete structure schematic diagram of blade plate described in the disclosed a kind of Universal locking fracture bone plate screw of this utility model embodiment is, wherein Fig. 2 is the G partial enlarged drawing of Fig. 1, Fig. 3 is the B-B cutaway view of a screw hole of described blade plate, and Fig. 4 is the D-D cutaway view of a screw hole of described blade plate.
Fig. 5-Fig. 6 is a kind of concrete structure schematic diagram of locking ring described in the disclosed a kind of Universal locking fracture bone plate screw system of this utility model embodiment, and wherein Fig. 5 is front view, and Fig. 6 is right view.
Fig. 7-Fig. 8 is a kind of concrete structure schematic diagram of screw described in the disclosed a kind of Universal locking fracture bone plate screw system of this utility model embodiment, and wherein Fig. 8 is the E partial enlarged drawing of Fig. 7.
Fig. 9 is the structural representation of a specific embodiment of the disclosed a kind of Universal locking fracture bone plate screw system of this utility model embodiment.
The specific embodiment
This utility model discloses a kind of Universal locking fracture bone plate screw system, and this system comprises blade plate, locking ring and screw, and the hole that wears screw on described blade plate has two at least for sphere hole; Described locking ring is provided with female thread and breach, and its upper surface is provided with deep gouge; Described screw is provided with external screw thread, and described sphere hole mates with locking ring, and described female thread and external screw thread cooperatively interact, and described externally threaded depth of threat shoals continuously towards the direction of screw head.
The quantity of described deep gouge is 4, take locking ring axis as axis of symmetry symmetrical by mind-set fringe radiation.
The length of described breach is 1/9～2/9 of locking ring internal diameter.
The quantity of described sphere hole is at least two.
Described locking ring is made by medical Ti-50.5Ni Nitinol marmem.
Embodiment 1:
Referring to Fig. 1 to Fig. 8, the present embodiment is described further:
A Universal locking fracture bone plate screw system, comprises blade plate 100, locking ring 200 and screw 300.
Referring to Fig. 1 to Fig. 4, described blade plate 100 has sphere hole 101 and screwed hole 102;
Described screwed hole 102 can be threaded with screw 300;
Described screw hole 101 is sphere hole, and its quantity is 2;
Referring to Fig. 5 and Fig. 6, described locking ring 200 is provided with female thread 201 and breach 202; The length of described breach 202 is 0.5 millimeter;
The internal diameter of described locking ring is 4.5 millimeters, and external diameter is 6.8 millimeters;
Described locking ring 200 upper surfaces are provided with deep gouge 203, and its quantity is 4;
The width of each deep gouge 203 is 1.4 millimeters, and take locking ring 200 axis as axis of symmetry symmetrical by mind-set fringe radiation;
Described locking ring 200 is made by medical Ti-50.5Ni Nitinol marmem, and its profile and sphere hole 101 match;
Referring to Fig. 7 and Fig. 8, described screw 300 is provided with external screw thread 301, and described external screw thread 301 and female thread 201 cooperatively interact;
The depth of threat of external screw thread 302 is more shallow than external screw thread 301;
The depth of threat of external screw thread 303 is more shallow than external screw thread 302;
The depth of threat of external screw thread 304 is more shallow than external screw thread 303;
The depth of threat of external screw thread 305 is more shallow than external screw thread 304.
Embodiment 2:
Referring to Fig. 5 and Fig. 6, the present embodiment is with the difference that embodiment 1 compares: the length of described breach 202 is 1 millimeter.
Below in conjunction with accompanying drawing, the work process of Universal locking fracture bone plate screw system of the present invention is described:
Participate in Fig. 9, first blade plate 100 is placed to the position that need to be fixed;
Then separately getting lock screw 300 is screwed in bone by screwed hole 102.
In said process, because the effect of breach 202, along with being screwed into of screw 300, forces locking ring 200 to expand outwardly, be just fixed on firmly in sphere hole 101.
Claims (4)
1. a Universal locking fracture bone plate screw system, this system comprises blade plate, locking ring and screw, the hole that wears screw on described blade plate has two at least for sphere hole; Described locking ring is provided with female thread and breach, and its upper surface is provided with deep gouge; Described screw is provided with external screw thread, it is characterized in that: described sphere hole mates with locking ring, and described female thread and external screw thread cooperatively interact, and described externally threaded depth of threat shoals continuously towards the direction of screw head.
2. Universal locking fracture bone plate screw system according to claim 1, is characterized in that: the quantity of described deep gouge is 4, take locking ring axis as axis of symmetry symmetrical by mind-set fringe radiation.
3. Universal locking fracture bone plate screw system according to claim 1, is characterized in that: the length of described breach is 1/9～2/9 of locking ring internal diameter.
4. Universal locking fracture bone plate screw system according to claim 1, is characterized in that: described locking ring is made by medical Ti-50.5Ni Nitinol marmem.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320587844.1U CN203524759U (en) | 2013-09-24 | 2013-09-24 | Universal locking bone plate and screw system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320587844.1U CN203524759U (en) | 2013-09-24 | 2013-09-24 | Universal locking bone plate and screw system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203524759U true CN203524759U (en) | 2014-04-09 |
Family
ID=50411028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320587844.1U Expired - Fee Related CN203524759U (en) | 2013-09-24 | 2013-09-24 | Universal locking bone plate and screw system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203524759U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104814783A (en) * | 2015-04-23 | 2015-08-05 | 济南大学 | Locking pressurized bone fracture plate |
-
2013
- 2013-09-24 CN CN201320587844.1U patent/CN203524759U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104814783A (en) * | 2015-04-23 | 2015-08-05 | 济南大学 | Locking pressurized bone fracture plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Jiangsu Jiasikang Medical Instrument Co., Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Jiangsu Jiasikang Medical Instrument Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Zhangjiagang City Jinfeng Jiangsu Yangtze River International Metallurgical Industrial Park Longtan Bay Road Suzhou 215626 Jiangsu province No. 6 Patentee after: Jiangsu Jia Sikang medical science and technology company limited Address before: 215000 International Metallurgical Industrial Park, Kam Fengzhen, Jiangsu Yangtze River, Jiangsu, Zhangjiagang Patentee before: Jiangsu Jiasikang Medical Instrument Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20200924 |