Blood pump with restart lockout
A control circuit includes a pump shutdown module responsive to one or more inputs indicating at least from the group consisting of an operational error at the implantable blood pump and an adverse physiological state of a user of the implantable blood pump. The pump shutdown module ceases operation of the implantable blood pump in response to the one or more inputs. A pump restart module configured to resume operation of the implantable blood pump in response to a first pump restart input and a second pump restart input is included. A pump restart lockout module configured to initiate a pump lockout mode in response to a lockout input is included. The pump lockout mode prevents resumption of operation of the implantable blood pump in response to the first pump restart input and allows resumption of operation of the implantable blood pump in response to the second pump restart input.
1. A control circuit for controlling operation of an implantable blood pump, the control circuit comprising:
an interface;
a pump shutdown module in communication with the interface, the interface being configured to provide one or more inputs indicating at least from the group consisting of an operational error at the implantable blood pump and an adverse physiological state of a user of the implantable blood pump, the pump shutdown module being configured to cease operation of the implantable blood pump in response to the one or more inputs;
a pump restart module configured to resume operation of the implantable blood pump in response to a first pump restart input and a second pump restart input different from the first pump restart input, the first pump restart input and a second pump restart input being provided by the interface; and
a pump restart lockout module configured to initiate a pump lockout mode in response to a lockout input provided by the interface, the pump lockout mode:
preventing resumption of operation of the implantable blood pump in response to the first pump restart input; and
allowing resumption of operation of the implantable blood pump in response to the second pump restart input.
2. The control circuit of claim 1 , wherein the second pump restart input includes an instruction to clear the pump lockout mode.
3. The control circuit of claim 2 , wherein the lockout input indicates that an amount of time since ceasing operation of the implantable blood pump exceeds a predetermined amount of time.
4. The control circuit of claim 3 , wherein the predetermined amount of time is based on a determined risk of thrombosis in the implantable blood pump occurring after the predetermined amount of time.
5. The control circuit of claim 3 , wherein the instruction to reset the pump lockout mode includes resetting the determined risk of thrombosis in response to the second pump restart input.
6. The control circuit of claim 3 , further comprising an alert module configured to notify the user of initiation of the pump lockout mode.
7. The control circuit of claim 1 , wherein the first pump restart input is an automatic input provided to the control circuit from the interface, and the second pump restart input is a manual input provided to the control circuit from the interface.
8. The control circuit of claim 7 , wherein the second pump restart input is inaccessible to the user of the implantable blood pump.
9. The control circuit of claim 1 , wherein the first pump restart input includes at least one from the group consisting of clearance of high pressure condition, clearance of suction condition, clearance of low flow condition, and clearance of overheating condition.
10. The control circuit of claim 9 , wherein the second pump restart input includes manual entry of the first pump restart input and an instruction to clear the lockout mode.
11. The control circuit of claim 1 , wherein the one or more inputs includes at least one from the group consisting of a low flow condition, low power condition, suction condition, high pressure condition, and overheating condition.
12. An implantable blood pump control system, comprising:
an implantable blood pump having a motor;
a control circuit in communication with the motor, the control circuit including:
a pump control module configured to control operation of the motor when the motor is operating:
an interface;
a pump shutdown module in communication with the interface, the interface being configured to provide one or more inputs indicating an adverse physiological state of a user of the implantable blood pump, the pump shutdown module being configured to cease operation of the implantable blood pump in response to the one or more inputs;
a first pump restart module configured to resume operation of the implantable blood pump in response to a first pump restart input from the interface, the first pump restart input being an automatic input and being indicative of clearance of the adverse physiological state, and a second pump restart input from the interface, the second pump restart input being a manual input inaccessible to a user of the implantable blood pump and being an instruction to clear a pump lockout mode; and
a pump restart lockout module configured to initiate the pump lockout mode in response to a lockout input from the interface, the lockout input indicating that an amount of time since ceasing operation of the implantable blood pump exceeds a predetermined amount of time based on a determined risk of thrombosis in the implantable blood pump occurring after the predetermined amount of time;
the pump lockout mode:
preventing resumption of operation of the implantable blood pump in response to the first pump restart input; and
allowing resumption of operation of the implantable blood pump in response to the second pump restart input.