CN104905863A - Composite screw - Google Patents

Composite screw Download PDF

Info

Publication number
CN104905863A
CN104905863A CN201410084198.6A CN201410084198A CN104905863A CN 104905863 A CN104905863 A CN 104905863A CN 201410084198 A CN201410084198 A CN 201410084198A CN 104905863 A CN104905863 A CN 104905863A
Authority
CN
China
Prior art keywords
screw
nail
macromolecular material
composite
composite screws
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
Application number
CN201410084198.6A
Other languages
Chinese (zh)
Inventor
贾强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chuan Hui Medical Apparatus And Instruments Jiangsu Co
Original Assignee
Chuan Hui Medical Apparatus And Instruments Jiangsu Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chuan Hui Medical Apparatus And Instruments Jiangsu Co filed Critical Chuan Hui Medical Apparatus And Instruments Jiangsu Co
Priority to CN201410084198.6A priority Critical patent/CN104905863A/en
Publication of CN104905863A publication Critical patent/CN104905863A/en
Pending legal-status Critical Current

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
    • A61B17/866—Material or manufacture
    • 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
    • A61B17/8605—Heads, i.e. proximal ends projecting from bone
    • A61B17/861—Heads, i.e. proximal ends projecting from bone specially shaped for gripping driver
    • A61B17/862—Heads, i.e. proximal ends projecting from bone specially shaped for gripping driver at the periphery of the screw head
    • 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
    • A61B17/8625—Shanks, i.e. parts contacting bone tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
    • A61L31/02—Inorganic materials
    • A61L31/022—Metals or alloys
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
    • A61L31/08—Materials for coatings
    • A61L31/10—Macromolecular materials
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00831—Material properties
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2420/00—Materials or methods for coatings medical devices
    • A61L2420/02—Methods for coating medical devices

Abstract

The invention relates to a composite screw which comprises a screw body and a screw cap. The screw cap is covered with a high polymer material covering layer, and a high polymer material is polyether-ether-ketone or polyethylene. The composite screw can generate micromovemnet in a bone plate.

Description

Composite screws
Technical field
The present invention relates to a kind of composite screws, particularly relate to a kind of blade plate composite screws.
Background technology
Rivet nut and the head of a nail of existing blade plate screw are made by metal material, such as titanium alloy, and the combination of such screw and blade plate can not carry out fine motion, are unfavorable for that broken bone produces secondary healing.In addition, also have now and increase flexible material to realize and the universal adjustment of screw and fine motion function in the lock hole of blade plate, but the manufacturability of this blade plate is poor, complicated, is unfavorable for promoting, popularizing.
Summary of the invention
The object of the invention is the defect overcoming prior art existence, a kind of composite screws that can produce fine motion in blade plate is provided.
The technical solution adopted for the present invention to solve the technical problems is: a kind of composite screws, comprises rivet nut and the head of a nail, the described head of a nail is coated with macromolecular material cover layer.
The side face of the described head of a nail is coated with macromolecular material cover layer.
Described macromolecular material is polyether-ether-ketone or polyethylene.
Described rivet nut is made up of titanium alloy.
Beneficial effect of the present invention: (one) is owing to the head of a nail being coated with macromolecular material cover layer, again because titanium alloy hardness is greater than macromolecular material cover layer, therefore screw can produce fine motion in blade plate, thus impel broken bone to produce secondary healing: when after rivet nut implant into body, by the tectal crimp of macromolecular material, screw can fine motion in vivo, thus the fricting movement formed between bone section, therefore larger potentiality are had to form the ring-type callus of higher mechanical strength, thus provide faster, more stable agglutination, avoid the formation of asymmetric callus, there is wound little, operation is simple, the advantages such as post-operative recovery is fast.; (2) early stage blade plate can be common to; (3) suitability is strong, and production technology is convenient, is applicable to batch production.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the structural representation of the preferred embodiments of the present invention;
Fig. 2 is the using state schematic diagram that the present invention is combined with blade plate.
Detailed description of the invention
As shown in Figure 1, a kind of composite screws, comprises rivet nut 1 and the head of a nail 2, and the side face of the described head of a nail 2 is coated with macromolecular material cover layer 21.Described macromolecular material is polyether-ether-ketone or polyethylene.Described rivet nut 1 is made up of titanium alloy.
This composite screws is made by titanium alloy material with blade plate matching used with it, because titanium alloy hardness is greater than polyether-ether-ketone and polyethylene, therefore, this composite screws can screw in blade plate by any direction self tapping in the scope of positive and negative 15 degree of circumference as shown in Figure 2.
In addition, all implantable materials lower than screw hardness can as the material manufacturing above-mentioned cover layer 21.
Should be appreciated that specific embodiment described above only for explaining the present invention, being not intended to limit the present invention.Still be among protection scope of the present invention by spirit institute's apparent change of extending out of the present invention or change.

Claims (4)

1. a composite screws, comprises rivet nut (1) and the head of a nail (2), it is characterized in that: the described head of a nail (2) is coated with macromolecular material cover layer (21).
2. composite screws according to claim 1, is characterized in that: the side face of the described head of a nail (2) is coated with macromolecular material cover layer (21).
3. composite screws according to claim 1, is characterized in that: described macromolecular material is polyether-ether-ketone or polyethylene.
4. composite screws according to claim 1, is characterized in that: described rivet nut (1) is made up of titanium alloy.
CN201410084198.6A 2014-03-10 2014-03-10 Composite screw Pending CN104905863A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410084198.6A CN104905863A (en) 2014-03-10 2014-03-10 Composite screw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410084198.6A CN104905863A (en) 2014-03-10 2014-03-10 Composite screw

Publications (1)

Publication Number Publication Date
CN104905863A true CN104905863A (en) 2015-09-16

Family

ID=54075606

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410084198.6A Pending CN104905863A (en) 2014-03-10 2014-03-10 Composite screw

Country Status (1)

Country Link
CN (1) CN104905863A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105596076A (en) * 2016-02-26 2016-05-25 创辉医疗器械江苏有限公司 Micro-motion locking screw

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070233116A1 (en) * 2006-03-17 2007-10-04 Sven Olerud Bone fixation assembly
US20110098754A1 (en) * 2009-05-26 2011-04-28 Urs Hulliger Variable Angle Screw Plate Systems
US20110257689A1 (en) * 2008-12-19 2011-10-20 Meinrad Fiechter Bone screw
CN203089348U (en) * 2013-03-26 2013-07-31 江苏荷普医疗器械有限公司 Bone screw
CN204765867U (en) * 2014-03-10 2015-11-18 创辉医疗器械江苏有限公司 Compound screw

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070233116A1 (en) * 2006-03-17 2007-10-04 Sven Olerud Bone fixation assembly
US20110257689A1 (en) * 2008-12-19 2011-10-20 Meinrad Fiechter Bone screw
US20110098754A1 (en) * 2009-05-26 2011-04-28 Urs Hulliger Variable Angle Screw Plate Systems
CN203089348U (en) * 2013-03-26 2013-07-31 江苏荷普医疗器械有限公司 Bone screw
CN204765867U (en) * 2014-03-10 2015-11-18 创辉医疗器械江苏有限公司 Compound screw

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105596076A (en) * 2016-02-26 2016-05-25 创辉医疗器械江苏有限公司 Micro-motion locking screw

Similar Documents

Publication Publication Date Title
SG10201902604WA (en) Bendable glass stack assemblies, articles and methods of making the same
CN104287820A (en) Steel plate screw system with universal locking function
WO2016154099A3 (en) Suture anchor comprising suture filament and suture tape
NZ604386A (en) Oval-neck bottle
AU2017249421A1 (en) Shear wall performance improving fastener
EP3976279A4 (en) Omniphobic surfaces with hierarchical structures, and methods of making and uses thereof
WO2016090241A3 (en) Torque limiting set screw
CN104905863A (en) Composite screw
CN204765867U (en) Compound screw
AR105331A1 (en) HIGH SOLIDS PCC WITH DEPOLIMERIZED CARBOXYLED CELLULOSE
MY193238A (en) Magic pin threader for dental implant, taking into account strength of titanium and bone
GB0804998D0 (en) A cup component of an orthopaedic joint prosthesis
CN202776638U (en) Acetabulum lining
CN205286613U (en) Matched stack formula acetabular bone false body
CN204169919U (en) A kind of steel plate screw system with universal lock function
NZ627684A (en) Bone screw and method for manufacturing the same
李中 et al. Effect of FePO4 coating on performance of Li1. 2Mn0. 54Ni0. 13Co0. 13O2 as cathode material for Li-ion battery
CN105232116B (en) A kind of Foreskin loop cutter glans penis seat
MX2018006701A (en) Preform with a concave bottom and an evolving thickness.
CN204484407U (en) Bone-cement type acetabular component
WO2015187224A3 (en) Metallic dimpled doubler
CN203724202U (en) Long-tail pedicle screw
CN205339218U (en) Threaded matched stack formula acetabular bone false body
CN206449075U (en) A kind of fastener for soft base material wall
CN202654216U (en) Dynamic locking screw

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: 20150916