# US 2019/0167956 A1 · Non-compliant medical balloon

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- Number: US 2019/0167956 A1
- Document ID: US20190167956A1
- Status: Published application
- Kind: A1
- Application number: 16/273,346
- Filed: 2019-02-12
- Published: 2019-06-06
- Earliest claimed: 2007-08-06
- Assignees: Bard Peripheral Vascular, Inc.
- Applicants: Bard Peripheral Vascular, Inc.
- Inventors: LANNY R. PEPPER; CHARLES J. COX; WILLIAM F. DAVIES, Jr.
- Web page: https://patentgrep.com/patent/US20190167956A1

## CPC

- A61M 25/1029: {Production methods of the balloon members, e.g. blow-moulding, extruding, deposition or by wrapping a plurality of layers of balloon material around a mandril}
- A61M 25/10: Balloon catheters ({A61M25/0125 takes precedence; embolectomy A61B17/22032; retractors A61B17/02;} inflatable balloons for placing stents or stent-grafts A61F2/958 {; stomach balloons for treatment of obesity A61F5/0003; oesophagal tubes A61J15/00})
- A61M 25/104: {used for angioplasty}
- B29C 63/10: around tubular articles
- B29C 65/02: by heating, with or without pressure
- B29C 70/30: Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C 70/32: on a rotating mould, former or core
- A61M 2025/1031: {Surface processing of balloon members, e.g. coating or deposition; Mounting additional parts onto the balloon member's surface}
- A61M 2025/1075: {having a balloon composed of several layers, e.g. by coating or embedding}
- B29C 53/40: for articles of definite length, i.e. discrete articles
- B29C 63/08: by winding helically
- B29C 2791/001: Shaping in several steps
- B29C 2949/08: Preforms made of several individual parts, e.g. by welding or gluing parts together
- B29K 2105/258: {Tubular}
- B29K 2667/003: {PET, i.e. poylethylene terephthalate}
- B29L 2022/022: {Balloons}
- B29L 2031/7546: {Surgical equipment}
- Y10T 156/10: Methods of surface bonding and/or assembly therefor
- Y10T 156/1002: with permanent bending or reshaping or surface deformation of self sustaining lamina
- 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)}
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)
- B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A non-compliant fiber-reinforced medical balloon comprises a first fiber layer and a second fiber layer embedded in a continuous matrix of thermally-weldable polymer material defining a barrel wall, cone walls and neck walls. The fibers of the first fiber layer have a pattern of different lengths and are divisible into a first group and a second group based on length. The length of the fibers of the second group varies progressively in accordance to their proximity to the fibers of the first group; the fibers of the second group closest to the fibers of the first group being longer than the fibers of the second group further from the fibers of the first group. The fiber of the second fiber layer winds circumferentially around the longitudinal axis of the balloon substantially over the entire length of the balloon.

## Claims

### Claim 1

A method for forming a medical balloon, comprising: affixing a sheet comprising fibers to a mandrel, said fibers being substantially
parallel to a longitudinal axis of the mandrel;
providing a thermally weldable polymer material over the mandrel; and
heating the thermally weldable polymer material to encapsulate the fibers of the sheet therein.

### Claim 2 (depends on 1)

The method of claim 1, wherein the providing step comprises wrapping the thermally weldable polymer material along the mandrel.

### Claim 3 (depends on 1)

The method of claim 1 further comprising after the affixing step, applying a solution including a thermally weldable polymer over the sheet.

### Claim 4 (depends on 1)

The method of claim 1, further including the step of winding at least one hoop fiber over the sheet prior to the heating step, and wherein the heating step encapsulates the hoop fiber in the thermally weldable polymer material.

### Claim 5 (depends on 4)

The method of claim 4, further including the step of applying a solution including a thermally weldable polymer over the at least one hoop fiber.

### Claim 6 (depends on 1)

The method of claim 1, further comprising before the affixing step, at least partially covering the mandrel with a thermally weldable polymer material.

### Claim 7 (depends on 1)

The method of claim 1, further comprising before the affixing step, providing a tube of a thermally weldable polymer material on the mandrel.

### Claim 8 (depends on 1)

The method of claim 1, further including the step of removing the mandrel after the heating step.

### Claim 9 (depends on 1)

The method of claim 1, further including the step of forming the sheet from a pattern of fibers.

### Claim 10 (depends on 9)

The method of claim 9, wherein the medical balloon when inflated includes a generally cylindrical barrel wall disposed between tapered cone walls and cylindrical neck walls extending therefrom along a longitudinal axis, and wherein the forming step comprises: providing a first fiber layer in a pattern, the pattern including a plurality of generally rectangular barrel regions, tapered cone regions on each end of each of the tapered barrel regions; and generally rectangular neck regions extending from each of the tapered cone regions; wherein the tapered cone regions connect the neck regions and barrel regions, and wherein the barrel regions of the pattern are each connected continuously along the length of a side thereof to an adjacent barrel region whereby the first fiber layer defines the generally cylindrical barrel wall, tapered cone walls and cylindrical neck walls when wrapped around the mandrel.