초록 ▼

A catheter including an internal sensing wire extending along most of the length of an easily stretched catheter body having a multifilament, strain relief line affixed in the catheter body parallel to said wire. The strain relief line has sufficient tensile strength to prevent the sensing wire from

A catheter including an internal sensing wire extending along most of the length of an easily stretched catheter body having a multifilament, strain relief line affixed in the catheter body parallel to said wire. The strain relief line has sufficient tensile strength to prevent the sensing wire from breaking under moderate tensile loading.

대표청구항 ▼

A catheter apparatus for medical applications comprising: an elongated body having a first end intended to be passed through a patient\s body passageway into a body cavity and a second end intended to be coupled to a utility device, said elongated body being formed of a flexible material enabling it

A catheter apparatus for medical applications comprising: an elongated body having a first end intended to be passed through a patient\s body passageway into a body cavity and a second end intended to be coupled to a utility device, said elongated body being formed of a flexible material enabling it to conform to the shape of said patients body passageway; a transducer mounted in said elongated body proximate to said first end; and a substantially straight elongated transducer wire mounted in said elongated body extending from said transducer to said second end, said transducer wire being flexible enabling it to conform to the shape of said elongated body; and a substantially straight elongated strain relief line mounted in and anchored to said elongated body extending substantially parallel to said transducer wire, from proximate to said first end to proximate to said second end, said strain relief line being flexible enabling it to conform to the shape of said elongated body and exhibiting a smaller ratio of elongation to tensile load than either said elongated body or said transducer wire to thereby prevent significant elongation of said elongated body whereby said transducer can be retained proximate to said first end without breaking said transducer wire.