Method for manufacturing medical devices from linear elastic materials while maintaining linear elastic properties
First Claim
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1. A method of manufacturing an embolic protection filtering device, comprising the steps of:
- providing a linear elastic shaft;
providing a filter shaping member, the shaping member including a filter loop defining region; and
disposing the linear elastic shaft adjacent the filter loop defining region, wherein disposing the linear elastic shaft adjacent the filter loop defining region alters the shape of the linear elastic shaft so that it substantially conforms to the shape of the filter loop defining region to define a filter loop, and wherein the filter loop exhibits a linear elastic response to stress.
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Abstract
Medical devices and methods of manufacturing medical devices at least partially from linear elastic materials. The manufacturing methods may include cold-forming and/or low-temperature heat setting to construct medical devices.
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Citations
20 Claims
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1. A method of manufacturing an embolic protection filtering device, comprising the steps of:
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providing a linear elastic shaft;
providing a filter shaping member, the shaping member including a filter loop defining region; and
disposing the linear elastic shaft adjacent the filter loop defining region, wherein disposing the linear elastic shaft adjacent the filter loop defining region alters the shape of the linear elastic shaft so that it substantially conforms to the shape of the filter loop defining region to define a filter loop, and wherein the filter loop exhibits a linear elastic response to stress. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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- 9. The method of claim l, further comprising the step of coupling the filter loop to a shaft member.
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12. An embolic protection filtering device, comprising:
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a shaft;
a filter coupled to the shaft, the filter including a filter frame assembly and a filter membrane coupled to the filter loop and extending distally therefrom, the frame assembly including a filter loop and one or more struts extending between the filter loop and the shaft; and
wherein at least a portion of the frame assembly includes a linear elastic material. - View Dependent Claims (13, 14)
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15. A method of manufacturing an embolic protection filter, comprising the steps of:
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providing a linear elastic shaft;
forming the linear elastic shaft into a shape that defines a filter loop and one or more struts, the loop and struts having linear elastic properties;
coupling a filter membrane to the filter loop; and
coupling the one or more struts to a shaft member. - View Dependent Claims (16, 17, 18, 19)
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20. A method of manufacturing an embolic protection filtering device, comprising the steps of:
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providing a nickel-titanium alloy shaft;
disposing the shaft on a forming member;
heat-treating the shaft at a temperature less than about 300 degrees Celsius so as to define a filter frame assembly, and wherein the frame assembly exhibits linear elastic properties.
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Specification