CA2622142A1 - Multi-layer medical balloons - Google Patents

Multi-layer medical balloons Download PDF

Info

Publication number
CA2622142A1
CA2622142A1 CA002622142A CA2622142A CA2622142A1 CA 2622142 A1 CA2622142 A1 CA 2622142A1 CA 002622142 A CA002622142 A CA 002622142A CA 2622142 A CA2622142 A CA 2622142A CA 2622142 A1 CA2622142 A1 CA 2622142A1
Authority
CA
Canada
Prior art keywords
layer
medical device
modulus
elasticity
differs
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002622142A
Other languages
French (fr)
Other versions
CA2622142C (en
Inventor
Kara Goeken
Raymond Lareau
Fuh-Sheng Chen
Show-Mean Wu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Boston Scientific Ltd Barbados
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2622142A1 publication Critical patent/CA2622142A1/en
Application granted granted Critical
Publication of CA2622142C publication Critical patent/CA2622142C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/3205—Excision instruments
    • A61B17/3207—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions
    • A61B17/320725—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions with radially expandable cutting or abrading elements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/10—Balloon catheters
    • A61M25/1002—Balloon catheters characterised by balloon shape
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B2017/22051—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation
    • A61B2017/22061—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation for spreading elements apart
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/10—Balloon catheters
    • A61M2025/1043—Balloon catheters with special features or adapted for special applications
    • A61M2025/1075—Balloon catheters with special features or adapted for special applications having a balloon composed of several layers, e.g. by coating or embedding
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/10—Balloon catheters
    • A61M2025/1043—Balloon catheters with special features or adapted for special applications
    • A61M2025/1086—Balloon catheters with special features or adapted for special applications having a special balloon surface topography, e.g. pores, protuberances, spikes or grooves

Abstract

The invention relates to multi-layer medical balloons. In one aspect, a medical device includes an inflatable balloon. The inflatable balloon includes a first layer including a material having a first modulus of elasticity, and a second layer adjacent the first layer, the second layer including a material having a second modulus of elasticity that differs from the first modulus of elasticity by at least about 2,000 psi. A cutting element is carried by the balloon.

Claims (20)

1. A medical device comprising:
an inflatable balloon comprising a first layer comprising a material having a first modulus of elasticity;
a second layer adjacent the first layer, the second layer comprising a material having a second modulus of elasticity that differs from the first modulus of elasticity by at least about 2,000 psi; and a cutting element carried by the balloon.
2. The medical device of claim 1, wherein the second modulus of elasticity differs from the first modulus of elasticity by at least about 10,000 psi.
3. The medical device of claim 2, wherein the second modulus of elasticity differs from the first modulus of elasticity by at least about 50,000 psi.
4. The medical device of claim 1, wherein the second modulus of elasticity differs from the first modulus of elasticity by at least about 50 percent of the first modulus of elasticity.
5. The medical device of claim 1, wherein the first layer is disposed outwardly of the second layer.
6. The medical device of claim 5, wherein an inner surface of the first layer is attached to an outer surface of the second layer.
7. The medical device of claim 6, wherein the inner surface of the first layer is bonded to the outer surface of the second layer.
8. The medical device of claim 6, wherein the inner surface of the first layer is adhesively attached to the outer surface of the second layer.
9. The medical device of claim 5, wherein the first layer has a hardness less than a hardness of the second layer.
10. The medical device of claim 5, wherein the first modulus of elasticity is less than the second modulus of elasticity.
11. The medical device of claim 5, wherein the cutting element is secured to an outer surface of the first layer.
12. The medical device of claim 5, further comprising at least a third layer disposed inwardly of the second layer, the third layer having a third modulus of elasticity that differs from the second modulus of elasticity by at least about 2,000 psi.
13. The medical device of claim 12, wherein the third modulus of elasticity is less than the second modulus of elasticity.
14. The medical device of claim 1, wherein each of the first and second layers has a thickness of about one micron to about 50 microns.
15. The medical device of claim 14, wherein the thickness of the second layer is greater than the thickness of the first layer.
16. The medical device of claim 14, wherein the thicknesses of the first and second layers are substantially equal.
17. The medical device of claim 1, wherein the inflatable balloon comprises at least five layers.
18 18. The medical device of claim 17, wherein each of the at least five layers has a modulus of elasticity that differs from an adjacent layer by at least about 2,000 psi.
19. The medical device of claim 1, wherein the inflatable balloon has a burst pressure of about ten atmospheres to about 30 atmospheres.
20. The medical device of claim 1, wherein the inflatable balloon has compliance of about one percent to about 15 percent.
CA2622142A 2005-09-15 2006-08-16 Multi-layer medical balloons Expired - Fee Related CA2622142C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/228,854 2005-09-15
US11/228,854 US8034066B2 (en) 2005-09-15 2005-09-15 Multi-layer medical balloons
PCT/US2006/031923 WO2007037821A1 (en) 2005-09-15 2006-08-16 Multi-layer medical balloons

Publications (2)

Publication Number Publication Date
CA2622142A1 true CA2622142A1 (en) 2007-04-05
CA2622142C CA2622142C (en) 2014-02-11

Family

ID=37459530

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2622142A Expired - Fee Related CA2622142C (en) 2005-09-15 2006-08-16 Multi-layer medical balloons

Country Status (7)

Country Link
US (1) US8034066B2 (en)
EP (1) EP1933917B1 (en)
JP (1) JP5256037B2 (en)
AT (1) ATE488264T1 (en)
CA (1) CA2622142C (en)
DE (1) DE602006018340D1 (en)
WO (1) WO2007037821A1 (en)

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Also Published As

Publication number Publication date
CA2622142C (en) 2014-02-11
US8034066B2 (en) 2011-10-11
US20070060863A1 (en) 2007-03-15
JP2009508576A (en) 2009-03-05
EP1933917B1 (en) 2010-11-17
EP1933917A1 (en) 2008-06-25
JP5256037B2 (en) 2013-08-07
DE602006018340D1 (en) 2010-12-30
WO2007037821A1 (en) 2007-04-05
ATE488264T1 (en) 2010-12-15

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EEER Examination request
MKLA Lapsed

Effective date: 20210816