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US 5,217,440 AGranted
Multilaminate coiled film catheter construction
AssigneeC. R. Bard, Inc.
InventorJames J. Frassica
Life of this patent
Estimating the term…
Abstract
A catheter shaft and catheter are formed by spirally rolling a thin polymeric film about a mandrel into a tubular form and fixing the spirally wound film in the tubular form. Additional elements and films may be incorporated into the spirally wound tube to provide a catheter having varied characteristics and functions.
Claims42
A catheter for insertion into the human body comprising:
- an elongate tubular shaft formed from at least one film of material rolled into an elongate tube having a plurality of layers and permanently fixed in said rolled configuration;
- said shaft being formed from a biocompatible material and having a proximal end and a distal end, the shaft being constructed to enable the distal end to be inserted into the body of a human patient;
- a fitting attached to the proximal end of the shaft;
- said catheter including means at the distal end of the shaft for treating a medical condition of the patient, the catheter being manipulable from the proximal portion thereof disposed outside of the patient's body.
1 more element
A catheter for insertion into the body of a human patient comprising:
- an elongate tubular shaft formed from at least one film of material rolled into an elongate tube having a plurality of layers and permanently fixed in said rolled configuration;
- said shaft being constructed to be inserted partly into the body of a patient;
- said catheter including means for treating a medical condition of the patient, the catheter being manipulable from the portion thereof disposed outside of the patient's body;
- at least one additional element formed from a different material and incorporated into the wall of the elongate tubular shaft, at least one of said additional elements extending over only a portion of the length of the tube.
1 more element
A catheter as defined in clam 22 wherein the film is polymeric and the additional element is fibrous.
A catheter for insertion into the body of a human patient comprising:
- an elongate tubular shaft formed from at least one film of polymeric material rolled into an elongate tube having a plurality of layers and permanently fixed in said rolled configuration;
- said shaft being constructed to be inserted partly into the body of a patient;
- said catheter including means for treating a medical condition of the patient, the catheter being manipulable from the portion thereof disposed outside of the patient's body;
- at least one additional element formed from a metallic film and incorporated into the wall of the elongate tubular shaft, at least one of said additional elements extending over only a portion of the length of the tube.
1 more element
A catheter having a shaft comprising:
- at least one film of polymeric material spirally rolled into an elongate tube and permanently fixed in said rolled configuration;
- and
- at least one additional element formed from a metallic film in a predetermined pattern comprising a plurality of chevrons and incorporated into the wall of the elongate tube, the pattern forming a different double helical pattern when rolled into tubular form.
A catheter for insertion into the body of a human patient comprising:
- an elongate tubular shaft formed from at least one film of polymeric material rolled into an elongate tube having a plurality of layers and permanently fixed in said rolled configuration;
- said shaft being constructed to be inserted partly into the body of a patient;
- said catheter including means for treating a medical condition of the patient, the catheter being manipulable from the portion thereof disposed outside of the patient'body;
- at least one additional element formed from a fibrous material and incorporated into the wall of the elongate tubular shaft, at least one of said additional elements extending over only a portion of the length of the tube.
1 more element
A catheter for insertion into the body of a human patient comprising:
- an elongate tubular shaft formed from at least one film of polymeric material rolled into an elongate tube having a plurality of layers and permanently fixed in said rolled configuration;
- said shaft being constructed to be inserted partly into the body of a patient;
- said catheter including means for treating a medical condition of the patient, the catheter being manipulable from the portion thereof disposed outside of the patient's body;
- at least one additional element comprising an optical fiber and incorporated into the wall of the elongate tubular shaft.
1 more element
A catheter for insertion into the body of a human patient comprising:
- an elongate tubular shaft formed from at least one film of material rolled into an elongate tube having a plurality of layers and permanently fixed in said rolled configuration;
- said shaft being constructed to be inserted partly into the body of a patient;
- said catheter including means defining at least one lumen extending through the wall of the catheter shaft;
- said catheter including means for treating a medical condition of the patient comprising a balloon at the distal end of the shaft in communication with the lumen,
- the catheter being manipulable from the portion thereof disposed outside of the patient's body.
2 more elements
Dependencies are inferred from the claim text.