Claims
- 1. An improved catheter system of the type including (a) a tubular catheter body having a proximal portion, a distal portion, and a primary lumen therethrough; and (b) a drive cable having a cable body and a cable lumen rotatably received in the primary lumen, having at least one lead wire disposed in the cable lumen, wherein the improvement comprises a strain relief device coupled to a portion of the drive cable, the strain relief device comprising a service loop device configured to dispose a section of the at least one lead wire in a looped configuration and allowing the at least one lead wire to move within the cable lumen when the drive cable is placed in tension.
- 2. The improved catheter system recited in claim 1, wherein the looped configuration biases the at least one lead wire such that the looped configuration contracts when the drive cable is placed in tension.
- 3. The improved catheter system recited in claim 1, wherein the service loop device comprises a chamber for enclosing the looped configuration.
- 4. The improved catheter system recited in claim 3, further comprising a hub assembly secured to a proximal end of the drive cable, wherein the chamber is disposed to protect the hub assembly.
- 5. A catheter system comprising:a tubular catheter body having a proximal portion, a distal portion, and a primary lumen therethrough; a drive cable having a cable body and a cable lumen rotatably received in the primary lumen; at least one lead wire disposed in the cable lumen; and a strain relief device coupled to a portion of the drive cable, the strain relief device comprising a service loop device configured to dispose a section of the at least one lead wire in a looped configuration and allowing the at least one lead wire to move within the cable lumen when the drive cable is placed in tension.
- 6. The catheter system recited in claim 5, wherein the looped configuration biases the at least one lead wire such that the looped configuration contracts when the drive cable is placed in tension.
- 7. The catheter system recited in claim 5, wherein the service loop device comprises a chamber for enclosing the looped configuration.
- 8. The catheter system recited in claim 5, further comprising a hub assembly secured to a proximal end of the drive cable, wherein the chamber is disposed to protect the hub assembly.
CROSS-REFERENCES TO RELATED APPLICATIONS
This application claims the benefit of and priority from Provisional Application Ser. No. 60/105,475, filed Oct. 23, 1998, incorporated herein by reference for all purposes. This application is a divisional application of U.S. application Ser. No. 09/425,495, filed Oct. 22, 1999 (now U.S. Pat. No. 6,419,644), the entire disclosure of which is herein incorporated by reference for all purposes, which is a continuation-in-part application of U.S. Pat. Ser. No. 09/150,001, filed Sep. 8, 1998 and issued Apr. 18, 2000 now U.S. Pat. No. 6,050,949.
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Provisional Applications (1)
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Number |
Date |
Country |
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60/105475 |
Oct 1998 |
US |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
09/150001 |
Sep 1998 |
US |
Child |
09/425495 |
|
US |