High modulus materials for surgical needles

Details High modulus materials for surgical needles High modulus materials for surgical needles

1993-10-05

1995-05-16

Kastler, Scott

Metal treatment

Stock

Chromium, molybdenum, or tungsten base

420432, 606222, 606223, C22C 2704, A61B 1700

Patent

active

054157072

ABSTRACT:
Disclosed are sterile surgical needles formed of alloys of tungsten and a second metal selected from the group consisting of rhenium, rhodium and iridium. The needles exhibit a tensile yield strength in excess of 250,000 psi and a tensile modulus of elasticity in excess of 45.times.10.sup.6 psi, and have advantageously high ductility. The needles have a body portion, a distal point, and a proximal suture mounting portion. Preferably the needles comprise about 3 to about 84 6 weight percent of rhenium, rhodium and/or iridium. The needles exhibit improved yield point and elastic modulus in tension.

REFERENCES:
patent: 2074474 (1937-03-01), Jedele
patent: 3399981 (1968-09-01), Maykuth et al.
patent: 3573903 (1971-04-01), Delgrosso
patent: 4197643 (1980-04-01), Burstone et al.
patent: 4513747 (1985-04-01), Smith
patent: 4660559 (1987-04-01), McGregor et al.
patent: 4672734 (1987-06-01), Kawada et al.
patent: 4799484 (1989-01-01), Smith et al.
patent: 4828547 (1989-05-01), Sahi et al.
patent: 4883469 (1989-11-01), Glazier
patent: 4883471 (1989-11-01), Braginetz et al.
patent: 4905695 (1990-03-01), Bendel et al.
patent: 4927420 (1990-05-01), Newkirk et al.
patent: 5000912 (1991-03-01), Bendel et al.
patent: 5041041 (1991-08-01), Passmore et al.
patent: 5100432 (1992-03-01), Matsutani
patent: 5123910 (1992-06-01), McIntosh
patent: 5258013 (1993-11-01), Granger et al.
Abidin et al., Biomechanics of Curved Surgical Needle Bending, J. Biomed. Mater. Res. Appl. Biomaterials, vol. 23, No. A1, 129-143, (Dec. 1989).
Bendel et al., Ophtalmic Needles, Ophthalmology, vol. 93, No. 9, (Sep. 1986). pp. 61-64.
McClung et al., Biomechanical Performance of Ophthalmic Surgical Needles, Ophthalmology, vol. 99, No. 2 (Feb. 1992). pp. 232-237.
Pavlovich, Lucas J., et al., A Synthetic Membrane for Testing Needle Penetration, Journal of Applied Biomaterials, vol. 4, 157-160 (Dec. 1993).
Bendel, Lee P., et al., Tensile & Bend Relationships of Several Surgical Needle Materials, Journal of Appl. Biomaterials, vol. 4, 161-167 (Dec. 1993).
Shunk, Francis A., Constitution of Binary Alloys, second supplement, McGraw-Hill, 1969, pp. 648-649.

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