US 2013/0085520 A1Published application

Device detachment systems with indicators

AssigneeTyco Healthcare Group LP

InventorsJessica LIANG, Dinh NGUYEN, David Scott BECKHAM, Christopher Charles ANDREWS

Life of this patent

Estimating the term…

Loading patent…

Abstract

A medical device detachment system receives an elongate delivery member, having a lumen, and an elongate core member. The system includes a housing, a user input mechanism for receiving a user input to effect detachment of a medical device, such as an embolic coil, from a distal end of the delivery member, and a grasping mechanism for grasping and moving a proximal end of the core member relative to a proximal end of the delivery member. The system also includes a first sensor detecting positioning of the proximal end of the core member within the housing, and a second sensor, detecting movement of the grasping mechanism. An indicator is connected to the first and second proximity sensors and provides feedback to a user.

Claims32

Dependent claims

A medical device detachment system for placement of a medical implant in a patient's vasculature, the system comprising:

a housing configured to receive a proximal end of an elongate delivery member and a proximal end of an elongate core member slidably disposed within the delivery member;
a grasping mechanism disposed within the housing and configured to grasp a portion of the core member in response to receiving an input signal;
a user input mechanism configured to receive the input signal and permit movement of the grasping mechanism to grasp the proximal end of the core member;
a first sensor configured to provide an output signal confirming placement of the proximal end of the core member at a determined position within the housing;
a second sensor configured to provide an output signal indicative of a proximity of the grasping mechanism relative to the delivery member;
and
an indicator connected to the first and second proximity sensors and configured to receive one or more output signals from the first and second sensors and to provide corresponding indication signals to a user when one or more output signals are received from the first or second proximity sensors.

4 more elements

A method of performing a medical device delivery procedure, the method comprising:

to the vasculature of a patient, providing (i) an elongate delivery member having a proximal end and a distal end, (ii) an elongate core member disposed within the delivery member and having a proximal end and a distal end, and (iii) a medical device releasably connected to the distal end of the core member;
providing the proximal end of the delivery member and the proximal end of the core member to a medical device detachment system that has indicators to indicate (i) a determined position of the proximal end of the core member within the system and (ii) a determined movement of the proximal end of the core member relative to the delivery member for detaching the medical device from the core member;
seating the proximal end of the core member at the desired position within the medical device detachment system;
indicating to a user the proximal end of the core member is at the determined position;
with the medical device detachment system, moving the proximal end of the core member a determined distance relative to the proximal end of the delivery member to detach the medical device from the distal end of the core member;
and
indicating to a user the determined movement has occurred.

4 more elements

Dependencies are inferred from the claim text.