Steerable Medical Device Having Multiple Curve Profiles
First Claim
1. A method of manufacturing an introducer, comprising:
- placing an inner liner over a mandrel;
placing a steering assembly over the inner liner, the steering assembly including a steering wire and a pull ring;
placing a braided wire reinforcing assembly over the inner liner;
placing an outer layer over the inner liner, the steering assembly, and the braided wire reinforcing assembly;
laminating the outer layer to the inner liner, thereby embedding the steering assembly and the braided wire reinforcing assembly within the outer layer; and
removing the mandrel, thereby forming a lumen,wherein a portion of the introducer is formed into a fixed curvature.
1 Assignment
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Accused Products
Abstract
A medical device, such as an introducer, includes a shaft having a lumen therethrough. A distal region of the shaft includes both a fixed curve region and a steerable region. According to certain aspects of the disclosure, the fixed curve region is more proximal than the steerable region. The fixed curvature of the distal region is selected to facilitate positioning of the distal end of the medical device in the general vicinity of a target, such as the left atrial appendage, while the steerable region allows for “fine tuning.” The lumen of the shaft is a large bore, typically on the order of about 12F to about 14F, to facilitate passage of larger medical devices, including left atrial appendage occlusion devices.
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Citations
20 Claims
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1. A method of manufacturing an introducer, comprising:
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placing an inner liner over a mandrel; placing a steering assembly over the inner liner, the steering assembly including a steering wire and a pull ring; placing a braided wire reinforcing assembly over the inner liner; placing an outer layer over the inner liner, the steering assembly, and the braided wire reinforcing assembly; laminating the outer layer to the inner liner, thereby embedding the steering assembly and the braided wire reinforcing assembly within the outer layer; and removing the mandrel, thereby forming a lumen, wherein a portion of the introducer is formed into a fixed curvature. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A medical device, comprising:
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a shaft defining a lumen therethrough and having a distal region, wherein the distal region of the shaft includes a fixed curvature region and a steerable region; and a steering assembly including a pull wire, the pull wire terminating in the steerable region of the shaft. - View Dependent Claims (12, 13, 14, 15, 16, 17, 19, 20)
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18. A medical device, comprising:
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a lumenal shaft including a braided wire reinforcing layer and a distal region, wherein a first portion of the distal region is formed into a fixed curvature and a second portion of the distal region is deflectable; and a handle coupled to a proximal end of the lumenal shaft.
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Specification