[특허]Bone cement mixing apparatus and method

[미국특허] Bone cement mixing apparatus and method 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B01F-013/06
출원번호	US-0095205 (1998-06-10)
우선권정보	GB-19940003362 (1994-02-22)
발명자 / 주소	Brown, Tim Foster, David
출원인 / 주소	Summit Medical Ltd.
대리인 / 주소	Alix, Yale & Ristas, LLP
인용정보	피인용 횟수 : 23 인용 특허 : 8

초록 ▼

A bone cement mixing apparatus comprises a cylindrical syringe body which functions as a mixing chamber, a mixing element rotatably mounted in the mixing chamber and a drive for causing rotation of the mixing element. The drive includes a handle which is axially movable relative to the mixing chamber and a gear mechanism which couples the handle of the mixing element and translates linear handle motion into rotary mixing element motion. The drive is supported by a chamber lid which engages the syringe body and the lid and drive may be detachable from the syringe body and from the mixing element thereby allowing the lid assembly and drive to be reused.

대표청구항 ▼

1. A bone cement mixing apparatus comprising: a syringe body, said syringe body defining a generally cylindrical mixing chamber, said mixing chamber having a central axis and first and second oppositely disposed ends; a plunger mounted within said mixing chamber so as to be initially disposed adjacent said first end thereof, said plunger being slidably movable along said central axis toward said second end of said mixing chamber; a mixing member rotatably mounted in said mixing chamber, said mixing member including: a rotatable shaft, said rotatable shaft extending along said central axis and carrying a sealing ring; and at least a first blade mounted on and radially extending from said rotatable shaft, rotation of said shaft causing said blade to rotate about said central axis within the interior of said mixing chamber, and drive means for causing rotation of said mixing member, said drive means including: a handle located to the exterior of said syringe body at said second end of said mixing chamber, said handle being parallel to and in-line with said central axis; a lid assembly removably coupled to said syringe body at said second end of said mixing chamber, said lid assembly supporting said drive means and having an inverted funnel-shaped member portion having an enlarged end facing the first end and contacting said sealing ring and surrounding a portion of said rotatable shaft; and a gear mechanism for connecting said handle to said mixing member, said gear mechanism comprising a barley twist mechanism having a threaded rod, a first end of said rod being connected to said handle, said gear mechanism further having a rotatable drive bush, said drive bush being coupled to said mixing member rotatable shaft for rotation therewith, said drive bush being engaged by said threaded rod whereby axial movement of said handle will cause rotation of said drive bush thereby imparting rotational force to said mixing member; and said sealing ring forming an air tight seal between said funnel-shaped portion of said lid assembly and said rotatable shaft. 2. The apparatus of claim 1 wherein said drive bush is detachably engageable with said mixing member rotatable shaft, engagement and disengagement of said drive bush with said rotatable shaft being accomplished by imparting axial motion to said drive bush. 3. The apparatus of claim 2 wherein a first of said drive bush and said rotatable shaft is provided with radially extending ribs and the other of said drive bush and said rotatable shaft is provided with grooves which are generally complementary to said ribs whereby said detachable engagement may be accomplished by inserting said ribs into said grooves. 4. The apparatus of claim 1 further comprising: a bone cement dispensing nozzle, said nozzle being engageable with said syringe body so as to communicate with said second end of said mixing chamber. 5. The apparatus of claim 1 further comprising: a stand for supporting said syringe body, said stand being, releasably engageable with the exterior of said syringe body at said first end thereof. 6. The apparatus of claim 5, further comprising an airtight seal between said syringe body and said stand.

이 특허에 인용된 특허 (8) 인용/피인용 타임라인 분석

Gunnarsson Kjell (Hr SEX), Apparatus for mixing bone cement in vacuum.
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Nilson Thomas (Falkenberg SEX) Thorling Jan (Falun SEX) Smeds Staffan (Linkping SEX) Jonsson Sren (Linkping SEX), Apparatus for the preparation of bone cement.
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Nelson Charles L. (Santa Clara CA) Steffler Michael W. (Kalamazoo MI) Tyler ; Sr. Douglas L. (Paw Paw MI), Bone cement mixing and loading apparatus.
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Washington Booker T., Lid with a rotatable paddle for stirring paint.
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Murray William M. (2650 Spring Hill La. Enola PA 17025), Manual bone cement mixing method.
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Lidgren Lars A. A. (Lund SEX) Dahl Lars G. (Lund SEX), Method for producing reduced porosity bone cement.
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Coutts Garry D. (N. Syracuse NY) Lautenschlager Eugene P. (Skokie IL) Wixson Richard L. (Evanston IL) Novak Michael A. (Morton Grove IL), Orthopedic cement mixer.
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Chan Kwan-Ho (271 MacNab Street South Hamilton ; Ontario CAX L8P 3E2), Vacuum mixing/bone cement cartridge and kit.
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이 특허를 인용한 특허 (23) 인용/피인용 타임라인 분석

McGill, Scott; Carrison, Harold F.; Patel, Mukund R.; Castelli, Shana; Hendricks, Austin, Apparatus and methods for delivering compounds into vertebrae for vertebroplasty.
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McGill, Scott; Patel, Mukund R.; Carrison, Harold F., Apparatus for mixing and dispensing a multi-component bone cement.
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Berelsman, Brian K.; McDaniel, John M.; Smeltzer, Dean E., Apparatus for mixing bone cement.
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Alsewailem, Fares D., Batch mixer with plunger.
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Alsewailem, Fares D., Batch mixer with plunger.
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Alsewailem, Fares D., Batch mixer with plunger.
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Henniges, Bruce D.; Coffeen, Jared P., Bone cement cartridge with a releasably locked drive piston, the piston configured to be unlocked by a delivery device.
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Henniges,Bruce D.; Coffeen,Jared P., Bone cement mixing and delivery system including a delivery gun and a cartridge having a piston, the delivery gun configured to release the piston.
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Henniges, Bruce D.; Tague, Christopher M.; Coffeen, Jared P.; Brockman, Christopher S.; Proulx, Marshall K., Cartridge from which bone cement is discharged, the cartridge having a removably coupled nozzle.
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Henniges, Bruce D.; Tague, Christopher M.; Coffeen, Jared P., Cartridge in which bone cement is mixed and from which bone cement is delivered, the cartridge having a compressible blade with plural vanes.
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Henniges, Bruce; Brockman, Christopher S.; Proulx, Marshall K., Delivery gun for dispensing bone bement from a cartridge, the gun having a multi-link linkage and capable of dispensing the cement at different flow rates.
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Umsonst-Kübler, Petra, Device for mixing a compound in a container.
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Vogt, Sebastian; Schnieber, Tim, Device for mixing bone cement and method for mixing bone cement and use of the device.
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Johnson, Michael; Moroney, Jon; Saladino, Joseph J; Agnihotri, Aashiish, Injectable material delivery device with an integrated mixer.
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Sand,Paul M, Methods for mixing and transferring flowable materials.
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Quinto, Mark, Mixer gun system and method.
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Quinto, Mark, Mixer gun system and method.
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King, William; Woodell-May, Jennifer E., Single step desiccating bead-in-syringe concentrating device.
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Vogt, Sebastian; Schnieber, Tim, Storage and mixing device for bone cement.
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Hess, Brian; Murphy, Matthew E., Syringe.
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Hess, Brian J.; Murphy, Matthew E., Syringe and stand.
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Hess, Brian; Murphy, Matthew E., Syringe and stand.
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Sand,Paul M, System for mixing and transferring flowable materials.
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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)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Bone cement mixing apparatus and method 원문보기

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이 특허에 인용된 특허 (8) 인용/피인용 타임라인 분석

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[미국특허] Bone cement mixing apparatus and method 원문보기

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이 특허에 인용된 특허 (8) 인용/피인용 타임라인 분석

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