TAPERED IMPLANTABLE DEVICE AND METHODS FOR MAKING SUCH DEVICES
First Claim
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1. A method for making a tapered implantable article comprising:
- forming a tapered portion having a first longer length in an ePTFE tubular member using a first mandrel having a first, longer tapered length segment;
removing the ePTFE tubular member from the first mandrel;
longitudinally compressing the tapered portion having a first longer length of the ePTFE tubular member on a second mandrel having a second, shorter tapered length segment into a tapered portion having a second shorter length; and
removing the ePTFE tubular member from the second mandrel.
1 Assignment
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Abstract
A tapered implantable device includes an ePTFE tubular member having a tapered length portion. The tapered length portion provides rapid recovery properties. The tapered length portion can feature a microstructure that includes a multiplicity of bent fibrils.
11 Citations
17 Claims
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1. A method for making a tapered implantable article comprising:
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forming a tapered portion having a first longer length in an ePTFE tubular member using a first mandrel having a first, longer tapered length segment; removing the ePTFE tubular member from the first mandrel; longitudinally compressing the tapered portion having a first longer length of the ePTFE tubular member on a second mandrel having a second, shorter tapered length segment into a tapered portion having a second shorter length; and removing the ePTFE tubular member from the second mandrel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An implantable article comprising:
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an ePTFE tube comprising a first length portion having a first diameter and a second length portion having a second diameter; and a tapered length portion between the first length portion and the second length portion, wherein the tapered length portion comprises a multiplicity of substantially bent fibrils. - View Dependent Claims (14, 15, 16)
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17. An implantable article comprising;
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an ePTFE tube comprising a first end having a smaller diameter and a second end having a larger diameter; and a tapered length portion between the first and second ends, wherein the tapered length portion comprises a multiplicity of substantially bent fibrils.
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Specification