Puncture Tips And Catheter Tubes
First Claim
1. A tip that is usable in the medical field to pierce the skin and penetrate into a site of the body, said needle-tip being composed of a section of hollow tube in a shape-memory material that, at its distal end, has a stable and rigid cutting bevel, designed to cut the skin and penetrate into the site, wherein the cutting bevel remembers a state in which it is not sharp, and in that it is capable of changing state so as to return to an atraumatic state when it is subjected to a condition that is prevalent at the site, or under the action of a stimulus controlled externally.
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Accused Products
Abstract
The invention relates to puncture tips which are used in the medical field. The puncture tip E comprises a hollow tube segment terminating in a cutting bevel which has a non-cutting state and which can return to said state by means of the shape memory effect when subjected to a prevalent condition in the site or under the effect of a stimulus controlled from the exterior, such as to be atraumatic. The invention is suitable for use in the medical field.
56 Citations
18 Claims
- 1. A tip that is usable in the medical field to pierce the skin and penetrate into a site of the body, said needle-tip being composed of a section of hollow tube in a shape-memory material that, at its distal end, has a stable and rigid cutting bevel, designed to cut the skin and penetrate into the site, wherein the cutting bevel remembers a state in which it is not sharp, and in that it is capable of changing state so as to return to an atraumatic state when it is subjected to a condition that is prevalent at the site, or under the action of a stimulus controlled externally.
Specification