CN105769323A - Composite screw and composite fixing assembly - Google Patents
Composite screw and composite fixing assembly Download PDFInfo
- Publication number
- CN105769323A CN105769323A CN201610094807.5A CN201610094807A CN105769323A CN 105769323 A CN105769323 A CN 105769323A CN 201610094807 A CN201610094807 A CN 201610094807A CN 105769323 A CN105769323 A CN 105769323A
- Authority
- CN
- China
- Prior art keywords
- composite screws
- composite
- head
- peek
- screw body
- 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.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8665—Nuts
Abstract
The embodiment of the invention provides a composite screw which is used for solving the problem that a screw in the prior art is poor in firmness and easily falls.According to the technical scheme, the composite screw comprises a screw body and a PEEK cap which are mutually independent, wherein the screw body comprises a threaded portion and a head portion, the head portion is provided with a hole, and the PEEK cap is located on the outer side of the head portion and is connected with the head portion.The embodiment of the invention further provides a composite fixing assembly.
Description
Technical field
The present embodiments relate to technical field of medical instruments, particularly relate to a kind of composite screws.The embodiment of the present invention further relates to a kind of compound fixation kit.
Background technology
Fracture is integrity and the seriality interruption of phalanges, causes bone parts ground or a kind of disease fully ruptured due to the reason such as wound or internal injury.Fracture is essentially all what unexpected injury caused, and in the modern life of high speed development, sudden hurt accident is recurrent.
In the treatment of fracture, by needing after the reduction of the fracture, it is fixed, it is prevented that be again subjected to displacement.Fixing mode can be divided into interior fixing and extenal fixation according to fixing means, the having the advantages that of internal fixation can keep the anatomical reduction of fracture preferably, than simple extenal fixation directly and more effectively, especially in the scissors preventing fracture end or rotatory activity more effectively.It addition, some inside-fixture has a strong supporting role, postoperative can less with or without extenal fixation, it is possible to reduce the scope and time of extenal fixation, be fixed with in strong and be beneficial to the functional exercise hindering limb and early stage gets up, reduce the complication caused because of long-term bed.
Prior art has the drawback that, use steel plate carry out interior fixing time, the fastness of screw is poor, easy to fall off, causes fixation failure.
Summary of the invention
The embodiment of the present invention provides a kind of composite screws, is used for solving screw fastness of the prior art this problem poor, easy to fall off.
The technical scheme of a kind of composite screws of the embodiment of the present invention is:
Composite screws includes separate screw body and PEEK cap；Described screw body includes threaded portion and head, and described head arranges perforate；Described PEEK cap is positioned at the outside of described head and is connected with described head.
Preferably, in the technical scheme of above-mentioned composite screws, the outer surface of described head is provided with some circumferentially disposed grooves, and described PEEK cap is provided with the boss corresponding with described groove, and described groove contacts with described boss.
Preferably, in the technical scheme of above-mentioned composite screws, described groove adjacent between two is arranged at equal intervals.
Preferably, in the technical scheme of above-mentioned composite screws, described screw body is formed in one structure.
Preferably, in the technical scheme of above-mentioned composite screws, described perforate is plum blossom hole.
Preferably, in the technical scheme of above-mentioned composite screws, the outer surface of described PEEK cap is smooth flat.
Preferably, in the technical scheme of above-mentioned composite screws, described threaded portion is cylinder.
The embodiment of the present invention also provides for a kind of compound fixation kit, and including fixing plate and composite screws described above, described fixing plate is provided with screwed hole, and described screwed hole is connected with the PEEK cap thread of described composite screws.
Preferably, in the technical scheme of above-mentioned compound fixation kit, described fixing plate is fixation steel plate.
Technique scheme is adopted to provide the benefit that:
Screw body and PEEK cap is included due to the composite screws in the present embodiment；Screw body includes threaded portion and head, and head arranges perforate；PEEK cap is positioned at the outside of head and is connected with head, adopt technique scheme, in operation process, fixation steel plate is temporarily fixed at fracture by operating theater instruments, the screwed hole on steel plate is utilized to coordinate drill bushing, surface of bone gets out duct, composite screws is screwed in bone, continue to screw in until PEEK cap is screwed into the screwed hole on steel plate, the screw thread on screwed hole is made to embed PEEK cap, PEEK cap can be good at and thread interlock, and the performance that can maintain a long-term stability so that composite screws continues to realize anti-back function in fixing process.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the overall schematic of a kind of composite screws of the embodiment of the present invention；
Fig. 2 is the front view of a kind of composite screws of the embodiment of the present invention；
Fig. 3 is the schematic diagram of the screw body of a kind of composite screws of the embodiment of the present invention；
Fig. 4 is the front view of the screw body of a kind of composite screws of the embodiment of the present invention；
Fig. 5 is the top view of the screw body of a kind of composite screws of the embodiment of the present invention；
Fig. 6 is the schematic diagram of the PEEK cap of a kind of composite screws of the embodiment of the present invention；
Fig. 7 is that above-mentioned composite screws uses view.
Detailed description of the invention
The embodiment of the present invention provides a kind of composite screws, is used for solving screw fastness of the prior art this problem poor, easy to fall off.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
Referring to Fig. 1 to Fig. 7, the technical scheme of a kind of composite screws of the embodiment of the present invention is:
Composite screws includes separate screw body 1 and PEEK cap 2；Screw body 1 includes threaded portion 3 and head 4, and head 4 arranges perforate；PEEK cap 2 is positioned at the outside of head 4 and is connected with head 4.
Technique scheme is adopted to provide the benefit that:
Screw body 1 and PEEK cap 2 is included due to the composite screws in the present embodiment；Screw body 1 includes threaded portion 3 and head 4, and head 4 arranges perforate；PEEK cap 2 is positioned at the outside of head 4 and is connected with head 4, adopt technique scheme, in operation process, fixation steel plate is temporarily fixed at fracture by operating theater instruments, the screwed hole on steel plate is utilized to coordinate drill bushing, surface of bone gets out duct, composite screws is screwed in bone, continue to screw in until PEEK cap 2 is screwed into the screwed hole on steel plate, the screw thread on screwed hole is made to embed PEEK cap 2, PEEK cap 2 can be good at and thread interlock, and the performance that can maintain a long-term stability so that composite screws continues to realize anti-back function in fixing process.
Preferably, in the technical scheme of above-mentioned composite screws, the outer surface of head 4 is provided with some circumferentially disposed grooves, PEEK cap 2 is provided with the boss corresponding with groove, groove contacts with boss, and groove increases the contact area with PEEK cap and fixing PEEK cap.
Preferably, in the technical scheme of above-mentioned composite screws, groove adjacent between two is arranged at equal intervals.
Preferably, in the technical scheme of above-mentioned composite screws, screw body 1 is formed in one structure.
Preferably, in the technical scheme of above-mentioned composite screws, perforate is plum blossom hole, coordinates with screwdriver.
Preferably, in the technical scheme of above-mentioned composite screws, the outer surface of PEEK cap 2 is smooth flat, and PEEK cap adopts micro-Shooting Technique to be worked into the head 4 of composite screws.
Preferably, in the technical scheme of above-mentioned composite screws, threaded portion 3 is cylinder.
It should be noted that, screw body 1 and the PEEK cap of composite screws are made by titanium alloy, utilize PEEK (polyether-ether-ketone, English name polyetheretherketone) outstanding biocompatibility can, long-term and human contact, is chronically implanted human body and will not cause the stress of human body self.
The operation principle of above-mentioned composite screws is: in operation process, fixation steel plate is temporarily fixed at fracture by operating theater instruments, the screwed hole on steel plate is utilized to coordinate drill bushing, surface of bone gets out duct, composite screws is screwed in bone, continue to screw in until PEEK cap is screwed into the screwed hole on steel plate, make the screw thread on screwed hole embed PEEK cap.Utilizing toughness excellent for PEEK and rigidity, particularly its prominent creep resistance and fatigue durability, PEEK cap can be good at and thread interlock, and the performance that can maintain a long-term stability so that composite screws continues to realize anti-back function in fixing process.
The embodiment of the present invention also provides for a kind of compound fixation kit, including fixing plate and above-mentioned composite screws, fixing plate is provided with screwed hole, screwed hole is connected with the PEEK cap thread of described composite screws, PEEK cap can be good at and thread interlock, and the performance that can maintain a long-term stability so that composite screws continues to realize anti-back function in fixing process.
Preferably, in the technical scheme of above-mentioned compound fixation kit, fixing plate is fixation steel plate.
In this specification, each embodiment adopts the mode gone forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually referring to.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.The multiple amendment of these embodiments be will be apparent from for those skilled in the art, and generic principles defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (10)
1. a composite screws, it is characterised in that include separate screw body and PEEK cap；Described screw body includes threaded portion and head, and described head arranges perforate；Described PEEK cap is positioned at the outside of described head and is connected with described head.
2. composite screws according to claim 1, it is characterised in that the outer surface of described head is provided with some circumferentially disposed grooves, and described PEEK cap is provided with the boss corresponding with described groove, and described groove contacts with described boss.
3. composite screws according to claim 2, it is characterised in that described groove adjacent between two is arranged at equal intervals.
4. composite screws according to any one of claim 1 to 3, it is characterised in that described screw body is formed in one structure.
5. composite screws according to claim 4, it is characterised in that described perforate is plum blossom hole.
6. composite screws according to claim 1, it is characterised in that the outer surface of described PEEK cap is smooth flat.
7. composite screws according to claim 1, it is characterised in that described threaded portion is cylinder.
8. composite screws according to claim 1, it is characterised in that described screw body is titanium alloy nail body.
9. a compound fixation kit, it is characterised in that including fixing plate and the composite screws as according to any one of claim 1 to 8, described fixing plate is provided with screwed hole, and described screwed hole is connected with the PEEK cap thread of described composite screws.
10. compound fixation kit according to claim 9, it is characterised in that described fixing plate is fixation steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610094807.5A CN105769323A (en) | 2016-02-22 | 2016-02-22 | Composite screw and composite fixing assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610094807.5A CN105769323A (en) | 2016-02-22 | 2016-02-22 | Composite screw and composite fixing assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105769323A true CN105769323A (en) | 2016-07-20 |
Family
ID=56402392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610094807.5A Pending CN105769323A (en) | 2016-02-22 | 2016-02-22 | Composite screw and composite fixing assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105769323A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100010542A1 (en) * | 2006-01-09 | 2010-01-14 | Jackson Roger P | Flexible spinal stbilization assembly with spacer having off-axis core member |
| CN201624766U (en) * | 2009-12-29 | 2010-11-10 | 杨宁 | Bone setting device |
| US20100312292A1 (en) * | 2001-10-18 | 2010-12-09 | Orthoip, Llc | Lagwire system and method for the fixation of bone fractures |
| US20100331886A1 (en) * | 2009-06-25 | 2010-12-30 | Jonathan Fanger | Posterior Dynamic Stabilization Device Having A Mobile Anchor |
| WO2012121726A1 (en) * | 2011-03-10 | 2012-09-13 | Synthes USA, LLC. | Awl screw fixation members and related systems |
| US20130253473A1 (en) * | 2008-08-13 | 2013-09-26 | Smed-Ta/Td, Llc | Orthopaedic screws |
| CN104173095A (en) * | 2014-09-15 | 2014-12-03 | 广东泓志生物科技有限公司 | Interference screw for department of orthopaedics |
| CN104840243A (en) * | 2015-06-02 | 2015-08-19 | 北京纳通科技集团有限公司 | Spine screw |
| CN205411302U (en) * | 2016-02-22 | 2016-08-03 | 运怡（北京）医疗器械有限公司 | Compound screw and compound fixation subassembly |
-
2016
- 2016-02-22 CN CN201610094807.5A patent/CN105769323A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100312292A1 (en) * | 2001-10-18 | 2010-12-09 | Orthoip, Llc | Lagwire system and method for the fixation of bone fractures |
| US20100010542A1 (en) * | 2006-01-09 | 2010-01-14 | Jackson Roger P | Flexible spinal stbilization assembly with spacer having off-axis core member |
| US20130253473A1 (en) * | 2008-08-13 | 2013-09-26 | Smed-Ta/Td, Llc | Orthopaedic screws |
| US20100331886A1 (en) * | 2009-06-25 | 2010-12-30 | Jonathan Fanger | Posterior Dynamic Stabilization Device Having A Mobile Anchor |
| CN201624766U (en) * | 2009-12-29 | 2010-11-10 | 杨宁 | Bone setting device |
| WO2012121726A1 (en) * | 2011-03-10 | 2012-09-13 | Synthes USA, LLC. | Awl screw fixation members and related systems |
| CN104173095A (en) * | 2014-09-15 | 2014-12-03 | 广东泓志生物科技有限公司 | Interference screw for department of orthopaedics |
| CN104840243A (en) * | 2015-06-02 | 2015-08-19 | 北京纳通科技集团有限公司 | Spine screw |
| CN205411302U (en) * | 2016-02-22 | 2016-08-03 | 运怡（北京）医疗器械有限公司 | Compound screw and compound fixation subassembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10918430B2 (en) | Bone screw with multiple thread profiles for far cortical locking and flexible engagement to a bone | |
| US8172884B2 (en) | Bone plate with at least two elongate holes and bone plate system | |
| BR112018068468A2 (en) | angled dental implant | |
| JP2009056288A (en) | Fixation kit for medical or surgical use | |
| NO323641B1 (en) | Fixation in a dental implant system | |
| BRPI0615212B1 (en) | INSTALLATION INSTRUMENT, DEVICE FOR ADJUSTING, COMPRESSING, AND / OR FIXING BONE FRAGMENTS, METHOD FOR SELECTIVELY CONFIRMING STRENGTH TO A SCREW, AND DEVICE FOR CHECKING A STRENGTH TO A SCREW | |
| WO2016058243A1 (en) | Steel plate screw system with universal locking function | |
| JP5914771B2 (en) | Osteosynthesis and osteosynthesis | |
| TW201320952A (en) | Bone screw, method for manufacturing the bone screw, and tool for mounting and removing the bone screw | |
| JP2015503944A (en) | Plate and cannula penetration locking screw system for human implants | |
| ATE484258T1 (en) | ANCHORING ELEMENT | |
| CN205411302U (en) | Compound screw and compound fixation subassembly | |
| US20090264884A1 (en) | Apparatus for External Fixation of the Pelvic Ring | |
| KR101090618B1 (en) | Fixture for inplant operation | |
| CN103800065A (en) | Malleolus medialis fixing steel plate system | |
| CN104224291A (en) | Novel combined-type calcaneal-fracture internal fixation steel plate | |
| CN105769323A (en) | Composite screw and composite fixing assembly | |
| CN211325517U (en) | Fracture adjusting and resetting device | |
| KR200362463Y1 (en) | Fixture | |
| CN110897702A (en) | Proximal tibia lateral special-shaped block | |
| CN211325508U (en) | Proximal tibia lateral special-shaped block | |
| CN110786921B (en) | Medical bone nail | |
| AU2021102613A4 (en) | Distal tibiofibular syndesmosis fretting elasticity internal fixation implant | |
| CN204260822U (en) | Hollow compression pin structure | |
| CN204671256U (en) | A kind of condylus medialis humeri pressurization fixed claw |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160720 |
|
| RJ01 | Rejection of invention patent application after publication |