Blood sensor assembly
Devices used to sense physiologic blood parameters are disclosed. The devices may be configured to sense at least two physiologic blood parameters at substantially a common site of an extracorporeal perfusion circuit. The devices may include a pressure sensor and a temperature sensor. The temperature sensor may be in direct contact with the blood.
1. A sensor device, comprising:
a housing comprising a gel well;
a printed circuit board member;
a first sensor electrically coupled to the printed circuit board member; and
a second sensor electrically coupled to the printed circuit board member,
wherein the first sensor is configured to measure a first parameter of a physiologic fluid and the second sensor is configured to measure a second parameter of the physiologic fluid at a common site of a perfusion circuit,
wherein the first sensor is at least partially disposed within the gel well of the housing, and
wherein a first end of the first sensor protrudes above a rim of the gel well.
2. The sensor device of claim 1 , wherein the first sensor is in direct contact with the physiologic fluid.
3. The sensor device of claim 1 , wherein the first sensor is a temperature sensor, and wherein the first parameter is temperature.
4. The sensor device of claim 3 , wherein the temperature sensor comprises a cladding.
5. The sensor device of claim 4 , wherein the cladding comprises any one of polyimide, stainless steel, copper, carbon, aluminosilicate, ceramic, glass glaze, parylene, and polytetrafluoroethylene.
6. The sensor device of claim 5 , wherein the cladding is any one of a dead-end tube and a dip coating.
7. The sensor device of claim 1 , wherein the first end of the first sensor protrudes above the rim of the gel well a distance of between 0.001 inch and 0.100 inch.
8. The sensor device of claim 1 , wherein the second sensor is a pressure sensor, and the second parameter is fluid pressure.
9. The sensor device of claim 1 , wherein the second sensor is disposed at a base of the gel well of the housing, wherein the gel well is filled with a gel, and wherein the gel surrounds the second sensor.
10. The sensor device of claim 1 , further comprising a third sensor to measure a third physiologic parameter.
11. A sensor assembly, comprising:
a housing comprising a gel well;
a printed circuit board member;
a pressure sensor electrically coupled to the printed circuit board member;
a temperature sensor electrically coupled to the printed circuit board member; and
a connector electrically coupled to the printed circuit board;
wherein the temperature sensor is configured to measure a blood temperature and the pressure sensor is configured to measure a blood pressure at a common site of a perfusion circuit, and
wherein the temperature sensor is at least partially disposed within the gel well of the housing.
12. The sensor assembly of claim 11 , wherein a first end of the temperature sensor is flush with a rim of the gel well.
13. The sensor assembly of claim 11 , wherein a first end of the temperature sensor protrudes above a rim of the gel well.
14. A method of measuring physiologic parameters of a fluid, comprising: obtaining a sensor device comprising:
a housing comprising a gel well;
a first sensor;
a second sensor,
wherein the first sensor is at least partially disposed within the gel well of the housing, and
wherein a first end of the first sensor protrudes above a rim of the gel well; and
exposing the sensor device to the fluid;
wherein the first sensor is in direct contact with the fluid.
15. The method of claim 14 , wherein the first sensor is a temperature sensor.
16. The method of claim 14 , further comprising measuring a temperature and pressure of the fluid at a common site.