Straightening and centerless grinding of wire for use with medical devices
First Claim
Patent Images
1. A method of processing an elongate shaft, the method comprising:
- providing an elongate shaft having a twist orientation;
providing a grinding apparatus having a spin configuration that is aligned in the same direction as the twist orientation; and
grinding at least a portion of the shaft with the grinding apparatus.
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Abstract
The invention includes methods of manufacturing shafts to be used in medical devices. In particular, methods are disclosed to improve straightness and profile of wire used to form guidewires. The wire is preferably twist-straightened with a desired twist orientation, followed by grinding a desired profile on an apparatus having a spin configuration that is aligned in the same direction as the twist orientation.
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Citations
27 Claims
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1. A method of processing an elongate shaft, the method comprising:
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providing an elongate shaft having a twist orientation;
providing a grinding apparatus having a spin configuration that is aligned in the same direction as the twist orientation; and
grinding at least a portion of the shaft with the grinding apparatus. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of processing an elongate shaft, the method comprising:
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providing a batch of twist straightened elongate shafts each having the same twist orientation;
providing a grinding apparatus having a spin configuration that is aligned in the same direction as the twist orientation; and
grinding at least a portion of each of the shafts with the grinding apparatus. - View Dependent Claims (8, 9)
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10. A method of manufacturing a guidewire, the method comprising:
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providing an elongate shaft having a twist orientation;
providing a grinding apparatus having a spin configuration that is aligned in the same direction as the twist orientation;
grinding at least a portion of the shaft with the grinding apparatus; and
disposing an outer member over a region of the shaft. - View Dependent Claims (11, 12, 13)
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14. A method of processing an elongate shaft, the method comprising:
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providing a grinding apparatus having a left-handed spin orientation;
providing a batch of shafts that each have a left-handed twist orientation; and
grinding the shafts with the grinding apparatus.
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15. A method of processing an elongate shaft, the method comprising:
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providing the elongate shaft having a twist orientation;
providing a means for grinding the elongate shaft in the same direction as the twist orientation; and
grinding at least a portion of the shaft with the means for grinding.
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16. An elongate shaft for use in a medical device, the elongate shaft produced by the following process:
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providing the elongate shaft having a twist orientation;
providing a grinding apparatus having a spin configuration that is aligned in the same direction as the twist orientation; and
grinding at least a portion of the shaft with the grinding apparatus. - View Dependent Claims (17, 18, 19, 20, 21)
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22. A medical device comprising:
an elongate shaft including a twist orientation, wherein the elongate shaft was ground with a grinding apparatus having a spin configuration that is aligned in the same direction as the twist orientation. - View Dependent Claims (23, 24, 25, 26, 27)
Specification