Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1993-10-19
1996-10-08
Pellegrino, Stephen C.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604264, 604282, 606 32, A61M 2500, A61B 1736
Patent
active
055626190
ABSTRACT:
For achieving, e.g., an improved electrophysiology catheter for examination of the heart, or a catheter accessing the brain, the invention, in one aspect, features an elongated wound wire coil extending through the hollow catheter body of a steerable catheter, the coil constructed and arranged to enable the catheter body to withstand reactive compressive load without distortion during application of tension on the pull wire and to transmit torque from the proximal to the distal tip portion of the catheter to enhance fidelity of rotational positioning of the distal tip in response to rotational orientation of the proximal portion of the catheter. The coil is shown in frictional torque-transmitting relationship with the interior of the hollow shaft substantially along the common length of the catheter body when the catheter is bent. Steerable catheters with augmented throw for one-handed operation and important improvements in construction features are also shown.
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Hunjan Kulbir S.
Kline Craig R.
Koblish Josef V.
Mirarchi Thomas F.
Peterson Thomas H.
Boston Scientific Corporation
Dawson Glenn
Pellegrino Stephen C.
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