Medical devices containing segmented polyurethane biomaterials

Details Medical devices containing segmented polyurethane biomaterials Medical devices containing segmented polyurethane biomaterials

2005-07-05

2005-07-05

Layno, Carl (Department: 3762)

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical energy applicator

C525S086000, C525S09200D

Reexamination Certificate

active

06915168

ABSTRACT:
In one aspect, the present invention relates to a medical device, such as a medical electrical lead, comprising a biomaterial formed from a polymer comprising urethane groups and saturated linear polyethylene moieties wherein the saturated linear polethylene moieties have greater than 12 carbon atoms per moiety. In another aspect, the present invention relates medical devices comprising a biomaterial formed from segmented polymers or polymers having an elongation of greater than 50%. Exemplified polymers contain compounds of the formula HO—(CH2)n—OH wherein n is greater than 12.

REFERENCES:
patent: 4426494 (1984-01-01), Beasley et al.
patent: 4675361 (1987-06-01), Ward, Jr.
patent: 4873308 (1989-10-01), Coury et al.
patent: 5040544 (1991-08-01), Lessar et al.
patent: 5238006 (1993-08-01), Markowitz
patent: 5375609 (1994-12-01), Molacek et al.
patent: 5480421 (1996-01-01), Otten
patent: 5589563 (1996-12-01), Ward et al.
patent: 6111052 (2000-08-01), DiDomenico et al.
patent: 94302893 (1994-11-01), None
Brandwood et al, “Polyurethane Elastomers Containing Novel Macrodiols II. In Vivo Evaluation”,Fourth World Biomaterials Congress; Apr. 24-28, 1992; Berlin, Federal Republic of Germany; p. 201.
Byrne et al, “Hydroxy Terminated Polyethylene and Polyurethanes Prepared From it”, Polymer Research Branch, SLcMT-EMP; Army Materials Technology Laboratory; Watertown, MA, pp 657-658.
Byrne et al, “Polyethylene-Based Polyurethane Copolymers and Block Copolymers”, Army Research Laboratory, Report No. ARL-TR 649; Watertown, MA (Nov. 1994) pp 1-31.
Byrne et al, “Polyethylene-Based Polyurethane Copolymers and Block Copolymers”,Macromol.Symp., 91, 1-26 (1995).
Courey et al, “Biomedical Uses of Polyurethanes”,Advances in Urethane Science and Technology, 9, 130-168 (1984).
Coury et al, “Factors and Interactions Affecting the Performance of Polyurethane Elastomers in Medical Devices”, uJournal of Biomaterials Applications 3, pp. 130-179 (Oct. 1988).
Fraser et al, “Degradable Cyclooctadiene/Acetal Copolymers: Versatile Precursors to 1,4-Hydroxytelechelic Polybutadiene and Hydroxytelechelic Polyethylene,”Macromolecules, 28, 7256-7261 (1995).
Frisch et al, “Polyurethane Elasstomers Based Upon Novel Hydrocarbon-Based Diols”, Polymer Institute, Univ. of Detroit Mercy; Detroit, Michigan, pp 395-416.
Hillmyer et al, “The ROMP of COD by a Well-Defined Metathesis Catalyst in the Presence of a Difunctional Chain Transfer Agent: The Preparation of Hydroxy-Telechelic 1,4-Poly (butadiene),”Polymer Preprints34, 388-389 (1993).
Hillmyer et al, “Chain Transfer in the Ring-Opening Metathesis Polymerization of Cyclooctadiene Using Discrete metal Alkylidenes,”Macromolecules, 28, 8662-8667 (1995).
Hillmyer et al, “Preparation of Hydroxytelechelic Poly(butadiene) via Ring Opening Methathesis Polymerization Employing a Well-Defined Methathesis Catalyst,”Macromolecules, 25, 872-874 (1993).
Hillmyer, “The Preparationof Functionalized Polymers by Ring-Opening Metathesis Polymerization”, Thesis-California Institute of Technology (1995); Dissertation Services—UMI; Ann Arbor, Michigan; pp. 1-131.
Li et al, “Novel Blood-Compatible Polyurethanes Containing Poly (butadiene) Soft Segments and Phosphatidylcholine Analogues for Biomedical Applications”,Chem.Mater. 8, 1441-1450 (1996).
Meijs et al, “Polyurethane Elastomers Containing Novel Macrodiols I. Synthesis and Properties”,Fourth World Biomaterials Congress; Apr. 24-28, 1992; Berlin, Fed. Republic of Germany, p 473.
Ward et al, “Thermoplastic Siloxane-Urethane Block Copolymers and Terpolymers for Biochemical Use”;Third World Biomaterials Congress; Apr. 21-25, 1988; Kyoto, Japan; p. 433.
Ward et al, “The Effect of Phase Separation and End Group Chemistry on In Vivo Biostability of Polyurethanes”,ASAIO(1996), Washington, DC.
Yokelson et al, “New Hydrocarbon-based Diols for Polyurethane Elastomers”,Polyurethanes 95: Proceedings of the Polyurethanes 1995 Conference Sponsored by the SPI Polyurethanes Division; Sep. 26-29, 1995; Chicago, Ill. pp 100-108.

Affiliated with

Also associated with

Rating

Medical devices containing segmented polyurethane biomaterials does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Medical devices containing segmented polyurethane biomaterials, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Medical devices containing segmented polyurethane biomaterials will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3372771