Modular flying lead cable and methods for use with heart pump controllers
Blood circulation assist systems with patient connectable cable assemblies. A blood circulation assist system includes a blood pump, an external controller, a percutaneous cable assembly, and an external cable assembly. The external controller is configured to output a connection indication. The percutaneous cable assembly includes a proximal connector. The external cable assembly includes a distal connector. The distal connector and the proximal connector are configured for connection and disconnection by the patient. The external controller is configured to detect whether the distal connector and the proximal connector are connected. The connection indication is indicative of whether the distal connector and the proximal connector are connected.
1 . A blood circulation assist system, comprising:
a blood pump;
an external controller via which power to operate the blood pump is supplied to the blood pump, wherein the external controller is configured to output a connection indication;
a percutaneous cable assembly connected to the blood pump and comprising a proximal connector, wherein the percutaneous cable assembly has a skin-interface segment adapted to extend through a skin of a patient; and
an external cable assembly connected to the external controller and comprising a distal connector, wherein the distal connector and the proximal connector are adapted to be connected by the patient, and wherein the distal connector and the proximal connector are adapted to be disconnected by the patient,
wherein the external cable assembly comprises a first connection lead and a second connection lead,
wherein the second connection lead is electrically connected to the first connection lead while the distal connector is connected to the proximal connector,
wherein the second connection lead is electrically disconnected from the first connection lead while the distal connector is not connected to the proximal connector,
wherein the external controller is configured to detect whether the second connection lead is electrically connected to the first connection lead, and
wherein the connection indication is indicative of whether the distal connector and the proximal connector are connected.
2 . The blood circulation assist system of claim 1 , wherein the external cable assembly has a length and a flexibility to accommodate positioning of the distal connector, by the patient, for simultaneous viewing of the distal connector and the connection indication by the patient.
3 . The blood circulation assist system of claim 2 , wherein the length of the external cable assembly is from 5 inches to 9 inches.
4 . The blood circulation assist system of claim 3 , wherein:
the external controller comprises an external cable assembly connection port;
the external cable assembly comprises an external cable assembly proximal connector that is connects the external cable assembly to the external cable assembly connection port; and
the external controller comprises a latching mechanism that prevents the patient from disconnecting the external cable assembly proximal connector from the external cable assembly connection port without use of a tool.
5 . The blood circulation assist system of claim 1 , wherein the percutaneous cable assembly comprises:
an intermediate cable assembly that includes the proximal connector; and
a distal cable assembly that is connectable to the intermediate cable assembly.
6 . The blood circulation assist system of claim 5 , wherein the intermediate cable assembly and the distal cable assembly are connected to prevent disconnection without a tool.
7 . The blood circulation assist system of claim 6 , further comprising an intermediate driveline latching mechanism that prevents disconnection of the intermediate cable assembly and the distal cable assembly without use of a specialized tool.
8 . The blood circulation assist system of claim 1 , wherein:
the distal connector and the proximal connector are included in a patient-operable connection assembly;
the patient-operable connection assembly comprises a latching mechanism having a retention configuration and a release configuration;
the latching mechanism blocks decoupling of the distal connector from the proximal connector in the retention configuration;
the latching mechanism accommodates decoupling of the distal connector from the proximal connector in the release configuration; and
the latching mechanism is reconfigurable by the patient from the retention configuration to the release configuration.
9 . The blood circulation assist system of claim 8 , wherein the latching mechanism is reconfigured from the retention configuration to the release configuration via relative rotation of the distal connector and the proximal connector by the patient.
10 . The blood circulation assist system of claim 8 , wherein the latching mechanism comprises a latching member that is operated by the patient to reconfigure the latching mechanism from the retention configuration to the release configuration.
11 . A method of providing a connection indication to a patient indicative of whether an external controller is operatively connected by a driveline to a blood pump implanted in the patient, the method comprising:
detecting, by the external controller, whether an external cable assembly of the driveline is connected to a percutaneous cable assembly of the driveline by detecting whether a first connection lead of the external cable assembly is connected to a second connection lead of the external cable assembly, wherein the driveline is configured for transferring electrical power from the external controller to the blood pump for operation of the blood pump, wherein a distal end of a percutaneous cable assembly is connected to the blood pump, wherein the percutaneous cable assembly has a skin-interface segment that extends through a skin of the patient, and wherein a proximal end of the external cable assembly is connected to the external controller; and
outputting, by the external controller, the connection indication, wherein the connection indication is indicative of whether the external cable assembly and the percutaneous cable assembly are connected.
12 . The method of claim 11 , wherein the percutaneous cable assembly comprises an intermediate cable assembly and a distal cable assembly, wherein the intermediate cable assembly comprises a proximal connector, wherein the distal cable assembly is connectable to the intermediate cable assembly, and further comprising securing the intermediate cable assembly to the distal cable assembly so as to prevent the patient from disconnecting the intermediate cable assembly from the distal cable assembly without use of a tool.
13 . The method of claim 11 , wherein the external cable assembly is connected to the external controller so as to prevent disconnection without use of a tool.
14 . The method of claim 11 , wherein the external cable assembly has a length from 5 inches to 9 inches.
15 . The method of claim 11 , wherein a length of the percutaneous cable assembly between the external cable assembly and the skin-interface segment is from 3.0 inches to 7.0 inches.
16 . An external controller assembly for a blood pump, the external controller assembly comprising:
an external controller via which power is supplied to the blood pump, wherein the external controller is configured to output a connection indication to a patient in which the blood pump is implanted;
a percutaneous cable assembly connected to the blood pump and comprising a proximal connector, wherein the percutaneous cable assembly has a skin-interface segment adapted to extend through a skin of a patient; and
an external cable assembly connected to the external controller and comprising a distal connector, wherein the distal connector and the proximal connector are adapted to be connected by the patient, and wherein the distal connector and the proximal connector are adapted to be disconnected by the patient,
wherein the external cable assembly comprises a first connection lead and a second connection lead,
wherein the second connection lead is electrically connected to the first connection lead while the distal connector is connected to the proximal connector,
wherein the second connection lead is electrically disconnected from the first connection lead while the distal connector is not connected to the proximal connector,
wherein the external controller is configured to detect whether the second connection lead is electrically connected to the first connection lead, and
wherein the connection indication is indicative of whether the distal connector and the proximal connector are connected.
17 . The external controller assembly of claim 16 , wherein the percutaneous cable assembly comprises:
an intermediate cable assembly that includes the proximal connector; and
a distal cable assembly that is connectable to the intermediate cable assembly.
18 . The external controller assembly of claim 16 , wherein:
the distal connector and the proximal connector are included in a patient-operable connection assembly;
the patient-operable connection assembly comprises a latching mechanism having a retention configuration and a release configuration;
the latching mechanism blocks decoupling of the distal connector from the proximal connector in the retention configuration;
the latching mechanism accommodates decoupling of the distal connector from the proximal connector in the release configuration; and
the latching mechanism is reconfigurable by the patient from the retention configuration to the release configuration.
19 . The external controller assembly of claim 18 , wherein the latching mechanism is reconfigured from the retention configuration to the release configuration via relative rotation of the distal connector and the proximal connector by the patient.
20 . The external controller assembly of claim 18 , wherein the latching mechanism comprises a latching member that is operated by the patient to reconfigure the latching mechanism from the retention configuration to the release configuration.