Dilator for cervical canal
First Claim
1. A body canal dilating device comprising a relatively non-elastic, non-expansible, collapsible, inflatable envelope, having two portions, the first said portion in the inflated state having a relatively constant diameter and a length sufficient to occlude a canal having more than one os, and the other of said portions contiguous with the first said portion and being a terminal enlarged bulbous portion having a diameter in excess of said constant diameter in the inflated state, a tubular inserter member entering the first said portion and while inside thereof extending therethrough and into the inside of the other of said portions, a shield located in proximity of the entrance to the first said portion and engaged with said tubular member, said tubular member being adapted to permit entry into said envelope of a pressurizing fluid, and fluid pressurizing means integral with said tubular member at a point external to said envelope.
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Accused Products
Abstract
A novel inflatable device is disclosed for use in dilating various body cavities, and especially the human cervix, comprising an envelope member having an enlarged bulbous portion on one end, and a shield at the opposite end. The envelope member is inflatable with suitable gasses such as carbon dioxide, or liquids such as saline, distilled water and the like.
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Citations
14 Claims
- 1. A body canal dilating device comprising a relatively non-elastic, non-expansible, collapsible, inflatable envelope, having two portions, the first said portion in the inflated state having a relatively constant diameter and a length sufficient to occlude a canal having more than one os, and the other of said portions contiguous with the first said portion and being a terminal enlarged bulbous portion having a diameter in excess of said constant diameter in the inflated state, a tubular inserter member entering the first said portion and while inside thereof extending therethrough and into the inside of the other of said portions, a shield located in proximity of the entrance to the first said portion and engaged with said tubular member, said tubular member being adapted to permit entry into said envelope of a pressurizing fluid, and fluid pressurizing means integral with said tubular member at a point external to said envelope.
Specification