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US 2011/0208203 A1Published application
Pressure sensing vertebroplasty extension tube
AssigneeCook Medical Technologies LLC
InventorJeffry S. Melsheimer
Life of this patent
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Abstract
Disclosed in certain embodiments is a pressure sensing tube for transporting a material under pressure through a lumen and a pressure sensitive material associated with the tube and operable to change in appearance in response to a physical change in the tube caused by pressure within the lumen. A method of manufacturing a pressure sensing tube is also disclosed.
Claims20
An injection assembly comprising:
- an injection apparatus operable to eject a viscous fluid;
- a pressure sensing extension tube coupled to the injection apparatus comprising:
- an inner tube defining a first lumen, wherein the inner tube is deformable in response to a change in pressure in the first lumen;
- an outer member;
- and
- a pressure sensitive material positioned between the inner tube and the outer member, wherein the pressure sensitive material is adapted to display a differing visual appearance when compressed between the inner tube and the outer member.
3 more elements
A method of manufacturing a pressure sensing vertebroplasty extension tube comprising:
- positioning a pressure sensitive material on the outer surface of a vertebroplasty extension tube having a first lumen;
- and
- covering the pressure sensitive material and at least a portion of the vertebroplasty extension tube with an outer member, wherein the pressure sensitive material is restrained between the outer surface of the vertebroplasty extension tube and the inner surface of the translucent outer member and wherein the pressure sensitive material is adapted to display a differing visual appearance when compressed between the inner tube and the outer member.
A pressure indicating vertebroplasty extension tube comprising:
- a vertebroplasty extension tube defining a lumen and including a first degree of deformability such that a change in pressure in the lumen changes the shape of the vertebroplasty extension tube;
- a pressure-indicating film external of the vertebroplasty extension tube;
- and
- a translucent thermoplastic heat-shrink tube shrunk over the pressure-indicating film, wherein the pressure-indicating film is adapted to visibly change when compressed between the heat-shrink tube and the extension tube.
1 more element
Dependencies are inferred from the claim text.