Vascular access devices for monitoring patient health
An implantable vascular access device includes a fluid reservoir, a self-sealing cover disposed over the reservoir, and an outlet port configured to mate with a catheter, the outlet port fluidically coupled to the fluid reservoir. One or more sensors coupled to the device are configured to capture physiological data while the device is implanted within a patient. The device can also include a data communications unit configured to receive physiological data from the one or more sensors and transmit the physiological data to one or more remote computing devices. The device may also be inductively powered and/or can emit a localization signal in response to wireless interrogation.
1 . A system comprising:
a vascular access device comprising:
a reservoir component comprising:
a reservoir body defining an interior chamber configured to receive fluid therein;
a self-sealing septum covering the chamber; and
an outlet port in fluid communication with the chamber, the outlet port configured to be mated to a catheter;
a monitoring device removably couplable to the vascular access device, the monitoring device comprising:
an electronics component comprising:
one or more sensing elements configured to obtain physiological measurements;
a wireless communication module; and
a battery in electrical communication with the sensing element(s) and the wireless communications module; and
a flexible housing configured to enclose the electronics component therein and to removably receive the vascular access device, the flexible housing including one or more topographical features to facilitate localization via palpation, wherein the flexible housing defines a first region for housing the electronics component and a second region for receiving the reservoir component, wherein the first region and the second region are arranged such that the electronics component is maintained separate from the reservoir component when the vascular access device is received in the flexible housing.
2 . The system of claim 1 , wherein the topographical features comprise a ramped portion over the electronics component, wherein a height of the ramped portion increases along a direction away from the reservoir and increases towards lateral edges of the device.
3 . The system of claim 2 , wherein the ramped portion is generally u-shaped defining a curved portion concave towards the reservoir component.
4 . The system of claim 1 , wherein the topographical features further comprise an annular ridge surrounding a circumference of the septum.
5 . The system of claim 1 , further comprising a suture reinforcement extending along a laterally outward edge of the device and laterally adjacent the reservoir component and/or the electronics component, wherein the suture reinforcement is configured to receive a fixation device therethrough.
6 . The system of claim 5 , wherein the suture reinforcement is enclosed within the flexible housing.
7 . The system of claim 1 , further comprising a transparent window disposed in a lower surface of the electronics component, the window aligned with an optical pulse oximeter.
8 . The system of claim 1 , wherein the electronics component comprises an encasement enclosing the one or more sensing element(s), the wireless communications module, and the battery therein.
9 . The system of claim 1 , wherein the electronics component comprises an electrical contact configured to be electrically coupled to an electrical lead extending away from the electronics component.
10 . The system of claim 9 , further comprising the electrical lead coupled to the electrical contact at a first end and an electrode at a second end.
11 . The system of claim 9 , further comprising a plurality of leads each coupled to an electrical contact of the electronics component and extending away from the electronics component, each lead coupled to a respective electrode.
12 . The system of claim 11 , wherein the electrodes are configured to measure one or more cardiac parameters.
13 . The system of claim 1 , wherein the device has a longest transverse dimension of between 30 mm to 70 mm and a greatest thickness of between about 10 mm and 30 mm.
14 . The system of claim 1 , wherein the one or more sensing elements comprises one or more of: temperature sensing element, a heart rate sensing element, a respiratory rate sensing element, a movement sensing element, a pressure sensing element, an electrical signal sensing element, and an electro-optical sensing element.
15 . The system of claim 1 , wherein the physiological measurements comprise one or more of: a temperature parameter, an oxygen saturation parameter, a heart rate parameter, a respiratory rate parameter, and an activity level parameter.
16 . The system of claim 1 , wherein the wireless communications module is configured to wirelessly transmit data using one or more of: near-field communication (NFC), infrared wireless, Bluetooth, ZigBee, Wi-Fi, inductive coupling, or capacitive coupling.
17 . The system of claim 1 , wherein the housing can flex such that the reservoir component and the electronics component can flex or bend with respect to one another.
18 . The system of claim 1 , further comprising a wireless recharging unit in electrical communication with the battery.
19 . The system of claim 18 , wherein the wireless recharging unit comprises a coil.
20 . A system comprising:
a vascular access device comprising:
a reservoir component comprising:
a reservoir body defining an interior chamber configured to receive fluid therein;
a self-sealing septum covering the chamber; and
an outlet port in fluid communication with the chamber, the outlet port configured to be mated to a catheter;
a monitoring device removably couplable to the reservoir component, the monitoring device comprising:
an electronics component comprising:
one or more sensing elements configured to obtain physiological measurements;
a wireless communication module; and
a battery in electrical communication with the sensing element(s) and the wireless communications module; and
a flexible housing composed of a biocompatible polymer, the flexible housing defining a first receptacle configured for receiving an encasement enclosing the electronics component therein and a second receptacle adjacent to the first receptacle, the second receptacle configured to removably receive the vascular access device therein such that the vascular access device is removably coupled to the monitoring device when the second receptacle receive the vascular access device, wherein the flexible housing comprises one or more topographical features to facilitate localization via palpation.