Catheter having hydrophobic properties
First Claim
1. An intravascular catheter comprising an elongated tubular body having a proximal portion, a distal portion and a lumen extending therebetween, said tubular body comprising:
- (a) an inner layer comprising a blend of (i) about 10-25 weight percent of a polyester-polyurethane having a durometer of from about 45D-55D, and (ii) about 38-53 weight percent of a polyester polyurethane having a durometer of from about 65D-75D;
(b) a reinforcing means at least partially surrounding said inner layer; and
(c) an outer layer comprising a blend of (i) about 10-25 weight percent of a polyester-polyurethane having a durometer of from about 4.D-55D, and (ii) about 38-53 weight percent of a polyester-polyurethane having a durometer of from about 65D-75D, said outer layer at least partially covering said reinforcing means.
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Accused Products
Abstract
An intravascular catheter having an elongated tubular body with a proximal portion, a distal portion and a lumen extending therebetween. The tubular body is formed with: (a) an inner layer of a blend of (i) about 10-25 weight percent of a polyester-polyurethane having a durometer of from about 45D-55D, and (ii) about 38-53 weight percent of a polyester polyurethane having a durometer of from about 65D-75D; (b) a reinforcing means at least partially surrounding the inner layer; and (c) an outer layer comprising a blend of (i) about 10-25 weight percent of a polyester-polyurethane having a durometer of from about 45D-55D and (ii) about 38-53 weight percent of a polyester-polyurethane having a durometer of from about 659D-75D.
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Citations
21 Claims
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1. An intravascular catheter comprising an elongated tubular body having a proximal portion, a distal portion and a lumen extending therebetween, said tubular body comprising:
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(a) an inner layer comprising a blend of (i) about 10-25 weight percent of a polyester-polyurethane having a durometer of from about 45D-55D, and (ii) about 38-53 weight percent of a polyester polyurethane having a durometer of from about 65D-75D; (b) a reinforcing means at least partially surrounding said inner layer; and (c) an outer layer comprising a blend of (i) about 10-25 weight percent of a polyester-polyurethane having a durometer of from about 4.D-55D, and (ii) about 38-53 weight percent of a polyester-polyurethane having a durometer of from about 65D-75D, said outer layer at least partially covering said reinforcing means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An intravascular catheter comprising an elongated tubular body having a proximal portion, a distal portion and a lumen extending therebetween, said tubular body comprising:
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(a) an inner layer comprising a blend of (i) about 10-25 weight percent of a polyester-polyurethane having a durometer of about 45D-55D, and (ii) about 38-53 weight percent of a polyester polyurethane having a durometer of about 65D-75D; (b) a reinforcing means at least partially surrounding said inner layer; (c) an outer layer comprising a blend of (i) about 10-25 weight percent of a polyester-polyurethane having a durometer of from about 45D-55D, and (ii) about 38-53 weight percent of a polyester-polyurethane having a durometer of from about 65D-75D, said outer layer at least partially covering said reinforcing means; and (d) a stem member comprising a blend of (i) about 10-25 weight percent of a polyester-polyurethane having a durometer of about 25D; and
(ii) about 38-53 weight percent of a polyester-polyurethane having a durometer of about 70D.
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20. An intravascular catheter comprising an elongated tubular body having a proximal portion, a distal portion and a lumen extending therebetween, said tubular body comprising:
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(a) an inner layer comprising a blend of (i) about 10-25 weight percent of a polyester-polyurethane having a durometer of about 50D; and
(ii) about 38-53 weight percent of a polyester polyurethane having a durometer of about 70D;(b) a reinforcing means at least partially surrounding said inner layer; (c) an outer layer comprising a blend of (i) about 10-25 weight percent of a polyester-polyurethane having a durometer of about 50D, and (ii) about 38-53 weight percent of a polyester-polyurethane having a durometer of about 70D, said outer layer at least partially covering said reinforcing means; and (d) a stem member comprising a blend of (i) about 10-25 weight percent 25D polyester-polyurethane, and (ii) about 38-53 weight percent 70D polyester-polyurethane.
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21. An intravascular catheter comprising an elongated tubular body having a proximal portion, a distal portion and a lumen extending therebetween, said tubular body comprising:
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(a) an inner layer comprising a "blend of (i) about 10-25 weight percent of a polyester-polyurethane having a durometer of about 45-55D, (ii) about 38-53 weight percent of a polyester polyurethane having a durometer of about 65D-75D, and (iii) about 0-36 weight percent barium sulfate; (b) a reinforcing means at least partially surrounding said inner layer; and (c) an outer layer comprising a blend of (i) about 10-25 weight percent of a polyester-polyurethane having a durometer of from about 45-55D, (ii) about 38-53 weight percent of a polyester-polyurethane having a durometer of from about 65-75D, and (iii) about 0-42 weight percent barium sulfate, said outer layer at least partially covering said reinforcing means.
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Specification