Synthetic resin needles and synthetic resin composition for...

Details Synthetic resin needles and synthetic resin composition for... Synthetic resin needles and synthetic resin composition for...

2006-09-21

2011-10-18

Sastri, Satya (Department: 1762)

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

C524S494000, C524S495000

Reexamination Certificate

active

08038658

ABSTRACT:
A medical needle is made of a synthetic resin which is reinforced, including the point part of the needle, to reduce deformation during puncture, even when the needle is produced by injection molding. The needle is made of a synthetic resin composition which includes synthetic resin and reinforcing fiber having a length of 80 μm or below and reinforcing fiber having a length exceeding 80 μm. The number ratio of the former fiber to the whole fiber component is 40% to 90%. A synthetic resin composition for needles includes a synthetic resin and a reinforcing fiber component, wherein the composition is prepared by adding at least two kinds of fibers, namely a fiber having a mean length of 1 mm to 10 mm and a fiber having a mean length of 10 μm to 100 μm to the synthetic resin and kneading the obtained mixture.

REFERENCES:
patent: 5637399 (1997-06-01), Yoshikawa et al.
patent: 5807914 (1998-09-01), Obayashi et al.
patent: 6284831 (2001-09-01), Shimpuku et al.
patent: 0 174 011 (1986-03-01), None
patent: 61-62468 (1986-03-01), None
patent: 62-57565 (1987-03-01), None
patent: 3-95440 (1991-04-01), None
patent: 03160052 (1991-07-01), None
patent: 06-327772 (1994-11-01), None
patent: 7-303700 (1995-11-01), None
patent: 10-138244 (1998-05-01), None
patent: 2005-48009 (2005-02-01), None
JP 03160052 A, Jul. 1991, English Abstract.
Printout of INPADOC Record by Delphion dated Mar. 5, 2008 (corresponds to JP 61-62468 published Mar. 31, 1986).
International Search Report (PCT/ISA/210) dated Dec. 5, 2006.

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