[특허]Multi-lobe torque driving recess and tool in particular for an orthopedic implant screw

[미국특허] Multi-lobe torque driving recess and tool in particular for an orthopedic implant screw 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16B-023/00
출원번호	US-0046514 (2001-10-19)
발명자 / 주소	Altarac, Moti Schaust, Leonard James
출원인 / 주소	Cross Medical Products, Inc.
대리인 / 주소	Hudak, Shunk & Farine Co. LPA
인용정보	피인용 횟수 : 18 인용 특허 : 12

초록 ▼

The present invention provides a fastener, such as a screw or nut and tool designed in particular for use with an orthopedic implant system wherein the fastener has a multi-lobed torque driving recess. The recess has a central area bounded by equally spaced hemicircular grooves separated by internally projecting land having two sharp edges. The tool has a corresponding male shape, which in conjugation with the recess, is designed to achieve a controlled torque load with a minimized possibility of stripping the recess or of shearing the torque-driving tip from the tool.

대표청구항 ▼

1. A fastener system comprising: a fastener with a torque driving recess comprising a central recess defining a peripheral surface having from 2 to 5 curved grooves spaced on it equally and so that the grooves do not intersect each other, but intersect the peripheral surface to define for each groove, an arc of the peripheral surface, and wherein adjacent pairs of grooves form an internally projecting land, each land defining a first distance on the peripheral surface between each adjacent pair of grooves each said are defining a second distance which is between one land and the next respective land, the first distance being less than the second distance, and where the driving recess has a longitudinal axis along its depth and where the driving recess is substantially constant in cross section along at least a portion of its length; and a torque driving tool having a torque driving tip having a cylindrical central core bounded by an equally spaced series of rounded longitudinally extending lobes which intersect the circumference of the central core whereby the tip has a configuration which mates with the configuration of the torque driving recess. 2. A fastener system as set forth in claim 1 wherein the control recess has a circular cross-section shape. 3. A fastener system as set forth in claim 2 wherein each of the grooves has the same shape. 4. A fastener system as set forth in claim 3 wherein the cross-sectional shape of each groove is a portion of a circle. 5. A fastener system as set forth in claim 4 wherein the portion is about one half of a circle. 6. A fastener system as set forth in claim 5 wherein there are 4 or 5 grooves. 7. An orthopedic tool and implant comprising: on orthopedic implant having a fastener with a torque driving recess comprising a central receiving defining a peripheral surface having from 2 to 5 curved grooves spaced an it equally so that each of the grooves interact the peripheral surface to define an arc or the peripheral surface, and adjacent pairs of grooves define a land on the peripheral surface, wherein all of the lands collectively define a first distance on the peripheral surface, and all of the arcs collectively define a second distance on the peripheral surface, the first distance being less than the second distance, and where the driving recess has a longitudinal axis along its depth and the driving recess it substantially constant in cross section along at least a portion of its length; and a tool having a torque driving tip having a cylindrical central core bounded by an equally spaced series of rounded longitudinally extending lobes which intersect the circumference of the central core whereby the tip has a configuration which mates with the configuration of the torque driving recess. 8. An orthopedic tool and Implant as set forth in claim 7 wherein the central recess has a circular cross-section shape. 9. An orthopedic tool art implant as set forth in claim 8 wherein each of the grooves have the same shape. 10. An orthopedic tool and implant as set forth in claim 9 wherein the cross-sectional shape of each groove is a portion of a circle. 11. An orthopedic tool and implant as set forth in claim 10 wherein the portion is about one half of a circle. 12. An orthopedic tool and implant as set forth in claim 11, wherein there are 4 or 5 grooves. 13. An orthopedic tool and Implant as set forth in claim 12 wherein the torque driving recess further includes internal threads.

이 특허에 인용된 특허 (12) 인용/피인용 타임라인 분석

Goss David (Rockford IL), Back-side taper wedging drive system.
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Fischer Artur (Weinhalde 34 D-7244 Waldachtal 3/Tumlingen DEX) Kramer Wolfgang (Feldbergstrasse 10 D-7031 Oberjettingen DEX), Connector for fractured bones.
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Shinjo Katsumi (Osaka JPX), Driver bit for a recessed screw.
상세보기
Goss David (Rockford IL) Seidl Richard (Rockford IL), Elliptical lobed drive system.
상세보기
Seidl Richard J. (Rockford IL), Fastener with multilobular internal recess and tool entry ramps.
상세보기
Yamamoto Kozo (Tokyo JPX), Head drive for threaded fastener.
상세보기
Lejdegard Sixten Harald (Ramnas SW), Internal spline drive configuration for threaded fasteners.
상세보기
Shinjo Katsumi (Osaka JPX), Recessed screw.
상세보기
Reynolds Richard L. (Grosse Pointe Shores MI), Scalloped nut and method of construction.
상세보기
Hsieh Chih-Ching (No. 64 ; Lane 107 ; Liang Tsun Rd. Fong Yuan City ; Taichung Hsien TWX), Screw.
상세보기
Schuster Armin (Forchtenberg DEX), Screw drive construction.
상세보기
Burge William G. (955 Seven Hills Ranch Rd. Walnut Creek CA 94596), Theft-prevention screw fastening.
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이 특허를 인용한 특허 (18) 인용/피인용 타임라인 분석

Dolan, Michael F., Apparatus for tightening threaded fasteners.
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Tomatsu, Yoshiya, Boss for self-tapping screw.
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Murray,Thomas; Kott,Michael; Milbourne,Rodney, Clamp device.
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Pacheco, Jr.,Raymond A., Combination driver and combination fastener.
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Anitua Aldecoa, Eduardo, Dental implant, pieces to be connected to a dental implant, and the internal connection between the dental implant and each piece.
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Sears, Aaron; Benoist, Matt; Herdman, Michael; Pawletki, David, Head for screw or bolt.
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Dilling, Gary, High strength fastener system.
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Dilling, Gary, High strength fastener system.
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Dilling, Gary, High strength fastener system.
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Jorneus, Lars; Duric, Sanel, Implant arrangement with an internal socket for a turning tool.
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Baynham,Matthew G., Medical fastener and tool.
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Campbell,R. Bryce, Penta nut and tool set.
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Biedermann, Lutz; Dandanopoulos, Dimosthenis; Matthis, Wilfried, Screw element for use in spinal, orthopedic or trauma surgery and a system of such a screw element and a screw driver adapted thereto.
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Pai, Mihir M.; Spaulding, Todd Curtis; Pais, Cecil Michael; Deurloo, Brian J., Security fastener.
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Oribe, Kazuya; Takamido, Hiroshi, Spinal implant, driver tool and nut guide.
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Lukes, Richard W.; Leuenberger, Brian, Torque transmission driver.
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Lukes, Richard W.; Leuenberger, Brian, Torque transmission driver.
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Lukes, Richard W.; Leuenberger, Brian, Torque transmission driver.
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A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
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[미국특허] Multi-lobe torque driving recess and tool in particular for an orthopedic implant screw 원문보기