Catheter introducer
AssigneeCordis Corporation
InventorsJean-Luc Hauser, Bernard Tomatis, Christian Sainte-Rose
Life of this patent
Estimating the term…
Abstract
A catheter introducer including a cannula, a stylet disposed within the cannula, and means for holding a catheter in close proximity to the cannula and stylet so that the tip of the catheter is positioned near the tip of the cannula after insertion within the human body. In the preferred embodiment, the stylet may be releasably locked in position within the cannula. The disclosed design allows the user to sample fluid through the tip of the inserted cannula and to inject medication into the insertion site without having to re-introduce a needle therein.
Claims27
A catheter introducer for positioning a catheter within the human body, the catheter introducer comprising:
- a tubular cannula having a body member mounted at one end thereof, said body member having a recess formed therein, said recess extending from an end of said body member to said cannula, such that said end of said cannula opens into said recess;
- a stylet reversibly positioned in a sliding engagement within said cannula, said stylet having an extraction member mounted at one end thereof and a stylet tip at the other end thereof, said extraction member including a neck portion dimensioned to fit within said recess of said body member, said stylet being affixed to and extending from said neck portion;
- and
- catheter retention mans including a clip for releasably retaining a catheter in close proximity adjacent to said cannula during insertion into an area of the body.
A catheter introducer for positioning a catheter within the human body, the catheter introducer comprising:
- a tubular cannula having a body member mounted at one end thereof, said body member having a conical recess formed therein, said recess extending from an end of said body member to said cannula, such that said end of said cannula opens into said conical recess;
- a stylet reversibly positioned in a sliding engagement within said cannula, said stylet having an extraction member mounted at one end thereof and a stylet tip at the other end thereof, said extraction member including a neck portion dimensioned to fit within said conical recess of said body member, said stylet being affixed to and extending from said neck portion;
- locking means for releasably locking said extraction member within said conical recess of said body member, said locking means including a stud affixed to said neck portion of said extraction member, and a slot provided in said body member, said slot being dimensioned to receive said stud therein when said neck portion is positioned within said conical recess;
- and
- catheter retention means including a clip for releasably retaining a catheter in close proximity adjacent to said cannula during insertion into an area of the body.
A catheter introducer for positioning a catheter within the human body, the catheter introducer comprising:
- a tubular cannula having a body member mounted at one end thereof, said body member having a recess formed therein, said recess extending from an end of said body member to said cannula, such that said end of said cannula opens into said recess;
- a stylet reversibly positioned in a sliding engagement within said cannula, said stylet having an extraction member mounted at one end thereof and a stylet tip at the other end thereof, said extraction member including a neck portion dimensioned to fit within said recess of said body member, said stylet being affixed to and extending from said neck portion;
- and
- catheter retention means for releasably retaining a catheter in close proximity adjacent to said cannula, said catheter retention means including a flange associated with said body member, said flange having a retention slot therein and a clip positioned along the length of said cannula, said clip and said retention slot dimensioned to receive a catheter therein.
A catheter introducer for positioning a catheter within the human body, the catheter introducer comprising:
- a tubular cannula having a body member mounted at one end thereof, said body member having a conical recess formed therein, said recess extending from an end of said body member to said cannula, such that said end of said cannula opens into said conical recess;
- a stylet reversibly positioned in a sliding engagement within said cannula, said stylet having an extraction member mounted at one end thereof and a stylet tip at the other end thereof, said extraction member including a neck portion dimensioned to fit within said conical recess of said body member, said stylet being affixed to and extending from said neck portion;
- locking means for releasably locking said extraction member within said conical recess of said body member, said locking means including a stud affixed to said neck portion of said extraction member, and a slot provided in said body member, said slot being dimensioned to receive said stud therein when said neck portion is positioned within said conical recess;
- and
- catheter retention means for releasably retaining a catheter in close proximity adjacent to said cannula, said catheter retention means including a flange associated with said body member, said flange having a retention slot therein and a clip positioned along the length of said cannula, said clip and said retention slot dimensioned to receive a catheter therein.
Dependencies are inferred from the claim text.