Semi-disposable ventilator breathing circuit tubing with releasable coupling
First Claim
Patent Images
1. A conduit for a ventilator breathing circuit, comprising:
- tubing made of a thermoplastic material having a tensile modulus greater than 400 psi and that does not deform when subjected to a temperature of 270°
F. for 20 minutes;
a compression coupler including at least two concentrically disposed tubular members selectably movable in an axial direction relative to one another, said tubular members having respective surfaces radially adjacent to one another and movable in a radial direction with respect to one another in response to relative axial movement of said tubular members for compressively engaging a portion of said tubing between said respective surfaces, one of said tubular members having a fitting; and
an elastomeric endpiece stretchably connected over said fitting and frictionally gripping said fitting, said elastomeric endpiece having a tensile modulus less than 200 psi.
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Accused Products
Abstract
A coupler having a releasable compression fitting connects a length of tubing to a ventilator fitting. The compression fitting allows the tubing to be made of economical and re-usable materials that would otherwise be difficult to attach to a ventilator fitting. The coupler may have a conical end that can be directly attached to a ventilator fitting, or it may have a barbed end over which an elastomeric endpiece is attached, which in turn can be attached to a ventilator fitting. The tubing and coupler may be sterilized and re-used.
233 Citations
6 Claims
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1. A conduit for a ventilator breathing circuit, comprising:
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tubing made of a thermoplastic material having a tensile modulus greater than 400 psi and that does not deform when subjected to a temperature of 270°
F. for 20 minutes;a compression coupler including at least two concentrically disposed tubular members selectably movable in an axial direction relative to one another, said tubular members having respective surfaces radially adjacent to one another and movable in a radial direction with respect to one another in response to relative axial movement of said tubular members for compressively engaging a portion of said tubing between said respective surfaces, one of said tubular members having a fitting; and an elastomeric endpiece stretchably connected over said fitting and frictionally gripping said fitting, said elastomeric endpiece having a tensile modulus less than 200 psi. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification