发明名称 |
CATHETER HAVING AN ACTIVE RETURN-TO-STRAIGHT MECHANISM |
摘要 |
Actuators for steerable medical devices are disclosed that not only deflect or steer a portion of a medical device (e.g., a distal portion of a catheter shaft), but also include mechanisms for actively returning the deflected portion of the medical device to an initial configuration (e.g., straight or substantially straight). These active return-to-straight mechanisms may return a catheter shaft from a deflected configuration to a substantially straight configuration throughout a medical procedure, may employ one or more tension members extending along the catheter shaft, and may comprise a gross return actuator and a fine return actuator. For example, the gross return actuator may be configured to partially reverse the deflection of the distal portion of the catheter; and the fine return actuator may be configured to continue reversing the deflection. The gross return actuator may automatically trigger or actuate (mechanically or electromechanically) the fine return actuator. |
申请公布号 |
US2015094654(A1) |
申请公布日期 |
2015.04.02 |
申请号 |
US201414500809 |
申请日期 |
2014.09.29 |
申请人 |
St. Jude Medical, Cardiology Division, Inc. |
发明人 |
Bansal Varun;Bowers Michael;Tegg Troy T.;Kim David |
分类号 |
A61M25/01 |
主分类号 |
A61M25/01 |
代理机构 |
|
代理人 |
|
主权项 |
1. An apparatus, comprising:
a deflection actuator configured to cause deflection of a distal portion of a catheter from an initial position; a first return actuator configured to partially reverse the deflection of the distal portion of the catheter; and a second return actuator configured to continue reversing the deflection of the distal portion of the catheter towards the initial position. |
地址 |
St. Paul MN US |