A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
128/93
A61M 5/32 (2006.01) A61B 6/12 (2006.01) A61M 25/00 (2006.01) A61M 25/01 (2006.01)
Patent
CA 1195576
BLOOD VESSEL CATHETER FOR MEDICINE DELIVERY AND METHOD OF MANUFACTURE Abstract A catheter which is capable of delivering medicine into a blood vessel at a selected point, such as into a coronary artery, includes an outer tube which is joined to the outside diameter of an inner tube by drawing the tubes through a heated die. A distal portion of the outer tube extends beyond the distal end of the inner tube, and the outer tube is formed from a polymeric material having a substantially lower flexural modulus than the polymeric material of the inner tube so that the distal portion is relatively flexible for enabling insertion in a tortuous blood vessel. The inner diameters of the inner tube and the distal portion of the outer tube permit insertion of a guide wire therethrough for aiding in the insertion of the catheter.
428498
Mallinckrodt Inc.
Osler Hoskin & Harcourt Llp
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