Double tapered esophageal dilator
First Claim
1. An esophageal dilator, comprising:
- a. an elongate bougie made of PVC with a radiopaque compound added thereto with at least one end tapered radially outward from a tip of said bougie and thereafter either remaining constant or increasing in circumference at each point along the length of said bougie end, said one tapered end including;
i. a first portion which tapers outward from a tip thereof to a first constant circumference;
ii. said first constant circumference extending in a second portion of said bougie a first predetermined distance along said bougie;
iii. a third portion which tapers outward from said first constant circumference to a second constant circumference; and
iv. said second constant circumference extending in a fourth portion of said bougie a second predetermined distance along said bougie.
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Accused Products
Abstract
A double tapered esophageal dilator bougie is designed to be disposable after a single use, is radiopaque, and is tapered at both ends to different respective dilator circumferences. Each end of the dilator bougie tapers to two different French sizes available on each end, with one end of the dilator being smaller than the other end. The dilator bougies are produced in graduated sizes and can be packaged as a kit of five. Each bougie in the kit of five is made of a similar PVC material, but the durometer of the PVC decreases as the bougie size increases. This allows each bougie in the kit to have a similar flexibility despite differences in circumference. A central guide wire channel extends the length of each dilator bougie for optional use with a positional guide wire.
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Citations
19 Claims
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1. An esophageal dilator, comprising:
a. an elongate bougie made of PVC with a radiopaque compound added thereto with at least one end tapered radially outward from a tip of said bougie and thereafter either remaining constant or increasing in circumference at each point along the length of said bougie end, said one tapered end including; i. a first portion which tapers outward from a tip thereof to a first constant circumference; ii. said first constant circumference extending in a second portion of said bougie a first predetermined distance along said bougie; iii. a third portion which tapers outward from said first constant circumference to a second constant circumference; and iv. said second constant circumference extending in a fourth portion of said bougie a second predetermined distance along said bougie. - View Dependent Claims (2, 3, 4, 5)
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6. An esophageal dilator, comprising:
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a. an elongate bougie with two ends, each of which are tapered, a first of said tapered ends including; i. a first portion which tapers outward from a tip thereof to a first constant circumference; ii. said first constant circumference extending in a second portion of said bougie a first predetermined distance along said bougie; iii. a third portion which tapers outward from said first constant circumference to a second constant circumference; and iv. said second constant circumference extending in a fourth portion of said bougie a second predetermined distance along said bougie; b. a second of said tapered ends including; i. a fifth portion which tapers outward from a tip thereof to a third constant circumference; ii. said third constant circumference extending in a sixth portion of said bougie a third predetermined distance along said bougie; iii. a seventh portion which tapers outward from said third constant circumference to a fourth constant circumference; and iv. said fourth constant circumference extending in an eighth portion of said bougie a fourth predetermined distance along said bougie. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A kit comprising a plurality of esophageal dilators of graduated circumferences, each of said esophageal dilators in said kit comprising:
a. an elongate bougie with a first tapered end, said first tapered end including; i. a first portion which tapers outward from a tip thereof to a first constant circumference; ii. said first constant circumference extending in a second portion of said bougie a first predetermined distance along said bougie; iii. a third portion which tapers outward from said first constant circumference to a second constant circumference; and iv. said second constant circumference extending in a fourth portion of said bougie a second predetermined distance along said bougie. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
Specification