[특허]Device for cutting and holding a cornea during a transplant procedure

[미국특허] Device for cutting and holding a cornea during a transplant procedure 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61B-017/32
출원번호	US-0615059 (2003-07-08)
발명자 / 주소	Lin,James
출원인 / 주소	Board of Supervisors of Louisiana State University and Agricultural and Mechanical College
인용정보	피인용 횟수 : 48 인용 특허 : 6

초록 ▼

A device and surgical method for promoting suitable grafting between a healthy donor cornea button and a recipient's healthy corneal tissue. The device is a cornea transplanter comprising a cutting device, a support block having a removable base plate, and a vacuum device. The cornea transplanter is capable of retaining healthy donor corneal tissue as it is buttoned and placed onto the recipient's eye, with minimal physical manipulation of the donor corneal tissue. Once the cornea button is properly positioned, sutures may be symmetrically placed around the cornea button, using suture grooves that guide the suture needle to a particular depth and length of pass.

대표청구항 ▼

I claim: 1. A device for transplanting donor corneal tissue onto a mammalian recipient's eye, comprising: (a) a cutting blade; wherein the dimensions and shape of said cutting blade are adapted to allow said cutting blade to cut a cornea button suitable for transplantation from the donor corneal tissue; (b) a removable, concave base plate comprising a proximal end having a plurality of suction ports, and a distal end having a plurality of suture grooves; wherein said suction ports are adapted to receive and distribute a negative pressure to hold the donor corneal tissue; and wherein said suture grooves have a size and shape adapted to guide a suture needle into the cornea button and through surrounding corneal tissue when the cornea button is placed on the recipient's eye; (c) a concave support block having a bore adapted to receive said base plate; wherein said block is adapted, so that when said base plate is positioned in said bore, said support block and said base plate form a smooth and continuous concave surface that approximates the curvature of the anterior surface of the corneal tissue; and (d) a vacuum device adapted to supply a negative pressure to the cornea button to hold the cornea button on said base plate; wherein: (e) when negative pressure is applied to the donor corneal tissue, a cornea button may be cut from the donor corneal tissue, placed onto to the recipient's eye, and sutured to the remaining corneal tissue of the recipient. 2. A device as recited in claim 1, additionally comprising a handle attached to said base plate. 3. A device as recited in claim 2, wherein said handle is a syringe-type suction device. 4. A device as recited in claim 1, wherein the size of said cutting blade is adapted to cut the donor corneal tissue to a size that is slightly larger than said base plate. 5. A device as recited in claim 1, wherein the size of said cutting blade is adapted to cut the donor corneal tissue to a size that is slightly smaller than said base plate. 6. A device as recited in claim 1, additionally comprising a lid to hold said cutting blade, wherein said lid further comprises a plurality of inserts positioned at each corner; and wherein said support block further comprises ports located at the periphery of said support block; wherein said ports are adapted to receive said inserts to align the position of said lid in said support block. 7. A device as recited in claim 1, wherein said suture grooves are adapted to allow a suture needle to pass through the distal end of said removable, concave base plate as the suture needle is passed through the cornea button and surrounding recipient corneal tissue. 8. A method for surgically promoting grafting between a healthy donor cornea button and a mammalian recipient's remaining corneal tissue using a device as recited in claim 1; said method comprising holding the donor corneal tissue to the removable, concave base plate with negative pressure from the vacuum device; cutting a cornea button from the donor corneal tissue; placing the cornea button onto the recipient's eye, while maintaining negative pressure; and suturing the cornea button to the recipient's corneal tissue by suturing through the suture grooves. 9. A method as recited in claim 8, wherein the diameter of the cornea button is slightly larger than the portion of the cornea removed from the recipient. 10. A method as recited in claim 8, additionally comprising the steps of detaching the base plate from the support block, and positioning the base plate near the recipient's eye, while maintaining negative pressure on the cornea button, so that the cornea button fills the void created where a portion of the cornea was removed from the recipient's eye. 11. A method as recited in claim 8, additionally comprising the steps of inserting a suture needle into a suture groove, and passing the suture needle and suture into the cornea button and through the surrounding corneal tissue. 12. A method as recited in claim 11, wherein the suture is a running suture. 13. A method as recited in claim 11, additionally comprising the steps of passing the suture through the suture groove slit, and repeating the steps of claim 11 until sutures have been passed through all of the suture grooves.

이 특허에 인용된 특허 (6) 인용/피인용 타임라인 분석

Krumeich Jorg H. (Propost-Hellmich-Promenade 28 4630 Bochum 6 CA DEX) Nordan Lee (Scripps Memorial Hospital ; 9834 Genessee Ave. ; Suite 209 Lajolla CA 92037), Device for holding a cornea taken from a donated eye.
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Krumeich Jorg H. (Bochum DEX) Quast Norbert (Essen-Kray DEX), Device for retaining a disc obtained from a human cornea.
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Grndler Patrik (Iddastrasse 7 CH-9098 St. Gallen CHX), Device for transplanting the cornea of the human eye.
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Giraud Clarence E. (Mesa AZ) Perry Edward R. (Phoenix AZ) Koepnick Russell G. (Phoenix AZ), Keratome with miniature differential micrometer.
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Lemp Michael A. (4918 Hillbrook La. Washington DC 20016), Method and apparatus for trephining corneal tissue in preparation for keratoplasty.
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Bailey Paul F. (4885 NW. Barnes Rd. Portland OR 97210), Trephine instrument for use in cornea removal and transplant.
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A	생활필수품
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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] Device for cutting and holding a cornea during a transplant procedure 원문보기

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이 특허에 인용된 특허 (6) 인용/피인용 타임라인 분석

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[미국특허] Device for cutting and holding a cornea during a transplant procedure 원문보기

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연구과제 타임라인

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이 특허에 인용된 특허 (6) 인용/피인용 타임라인 분석

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