# US 8,784,402 B1 · Catheters with fluoropolymer additives

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- Number: US 8,784,402 B1
- Document ID: US8784402B1
- Status: Granted
- Kind: B1
- Application number: 13/950,585
- Filed: 2013-07-25
- Granted: 2014-07-22
- Earliest claimed: 2013-03-15
- Assignees: AngioDynamics, Inc.; Interface Biologics, Inc.
- Applicants: AngioDynamics, Inc.
- Inventors: Raymond Lareau; Benjamin Bell; J. Paul Santerre; Jeannette Ho
- Web page: https://patentgrep.com/patent/US8784402B1

## CPC

- A61L 29/049: {Mixtures of macromolecular compounds}
- A61L 29/14: Materials characterised by their function or physical properties {, e.g. lubricating compositions}
- A61L 29/18: Materials at least partially X-ray or laser opaque
- A61M 25/0017: {specially adapted for long-term hygiene care, e.g. urethral or indwelling catheters to prevent infections}
- A61M 25/0108: {using radio-opaque or ultrasound markers}
- A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K)
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}

## Abstract

The present invention provides catheter compositions that provide anti-thrombogenic properties while not adversely impacting mechanical properties. All embodiments of the present invention comprise a catheter that comprises a fluoropolymer additive with specific compositions and/or purity levels.

## Claims

### Claim 1

A catheter comprising:
an elongated tubular structure comprising:
a polymeric material;
an outer surface, a proximal end, a distal end, and a lumen, wherein said outer surface and said lumen extend between said proximal and distal ends; and
a wall thickness between said outer surface and said lumen, said wall thickness being at least 0.005 inches;
wherein said polymeric material comprises polyurethane and additives, said additives comprising 25-35 weight percent of a radiopaque material, 1.5-2.5 weight percent of a polymer comprising terminal polyfluoro-oligomeric groups, and a colorant.

### Claim 2 (depends on 1)

The catheter of claim 1, wherein said polymeric material is comprised of a positive amount of up to about 40 weight percent of said additives.

### Claim 3 (depends on 1)

The catheter of claim 1, wherein said polymeric material is comprised of a positive amount of up to about 33 weight percent of said additives.

### Claim 4 (depends on 1)

The catheter of claim 1, wherein said polymeric material comprises a positive amount of up to about 2.0 weight percent of said colorant.

### Claim 5 (depends on 4)

The catheter of claim 4, wherein said polymeric material comprises a positive amount of up to about 0.2 weight percent of said colorant.

### Claim 6 (depends on 1)

The catheter of claim 1, wherein said polymeric material comprises a positive amount of up to about 30 weight percent of said radiopaque material.

### Claim 7 (depends on 1)

The catheter of claim 1, wherein said radiopaque material comprises barium sulfate.

### Claim 8 (depends on 1)

The catheter of claim 1, wherein said elongated tubular structure comprises a plurality of lumens.