Monitoring fluid volume for patients with renal disease

摘要

A method includes monitoring an indicator of fluid volume of a patient via a sensor device, and setting an initial fluid volume removal prescription for a blood fluid removal session based on the monitored indicator of fluid volume. The method may further include transmitting data regarding the indicator of fluid volume from the implantable sensor device to fluid removal device. In some embodiments, the fluid removal device sets or calculated the initial fluid volume removal prescription based on the data received from the implantable sensor. The indicator of fluid volume may be an indicator of tissue fluid volume or an indicator of blood fluid volume.

主权项

1. A system comprising:
(i) an implantable sensor device configured to monitor impedance of interstitial fluid of a patient, the implantable sensor device comprising
a first electrode,a second electrode,electronics operably coupled to the first and second electrodes for monitoring impedance of current flow between the two electrodes, anda first communication circuit configured to transmit data regarding the monitored impedance; (ii) a fluid removal device for removing fluid from a patient, the device comprising
an inlet for receiving blood from a patient;a medium for removing fluid from the blood, the medium being in communication with the inlet;an outlet in communication with the medium for returning blood to the patient;a flow controller in communication with the inlet, outlet or medium configured to control the rate at which the fluid is removed from the medium; (iii) a second communication circuit configured to wirelessly receive the data regarding the impedance from the implantable sensor device; (iv) electronics in communication with the second communication circuit and the flow controller wherein the electronics are configured to set an initial fluid removal prescription for a fluid removal session based in part on the impedance data received prior to the start of the session and to control the flow controller regarding the rate of fluid removal based on the received impedance data.