Catheter assembly
A catheter hub assembly includes a body. A pressure sensor is disposed within the body to sense pressure within a catheter and communicating with the body. The body has a chamber formed therein having a predetermined volume. A stopper assembly, slideably moves to engage the body forming a gastight seal within the chamber for pushing a column of gas ahead of the stopper assembly as the stopper assembly moves from a first position to a second position.
1. An electronics assembly for a catheter comprising:
a housing;
a first circuitry disposed within said housing;
a connector housing disposed on, and configured to be detached and reattached to, an outer surface of said housing, said connector housing housing therein a second circuitry, the second circuitry communicating with the first circuitry when said connecter housing is attached to said housing;
a first catheter hub assembly having a first catheter hub assembly housing, a first catheter at least partially disposed within said first catheter hub assembly housing, a first pressure sensor disposed within said first catheter hub assembly housing to sense a first pressure within the first catheter, the first catheter hub assembly housing having a chamber formed therein, the chamber having a predetermined volume, the first pressure sensor being disposed within the first catheter hub assembly, and the first catheter hub assembly being configured to be detached and reattached to an outer surface of the connector housing, wherein a second pressure sensor is configured to be in communication with said second circuitry when said first catheter hub assembly is attached to the housing;
and at least a second catheter hub assembly having a second catheter hub assembly housing, a second catheter at least partially disposed within said second catheter hub assembly housing, a second pressure sensor disposed within the second catheter hub assembly housing to sense a pressure within the second catheter hub assembly housing, the second catheter hub assembly housing having a second chamber formed therein, the chamber having a second predetermined volume,
wherein the second pressure sensor is disposed within the second catheter hub assembly, wherein the second catheter hub assembly is configured to be detached and reattached to an outer surface of the connector housing, wherein the second pressure sensor is configured to be in communication with the second circuitry when said second catheter hub assembly is attached to the housing;
wherein each of the first catheter hub assembly and the second catheter hub assembly further comprise a stopper assembly comprising a bore formed within the stopper assembly, a seal disposed at least partially within said bore, and extending beyond said bore;
the bore selectively connecting with at least one of the first catheter hub assembly and the at least second catheter hub assembly.
2. The electronics assembly of claim 1 , wherein each of the first catheter and second catheter is disposed within a respective bore and along a length of said stopper assembly and said seal.
3. The catheter hub assembly of claim 1 , wherein each respective seal includes a resilient member disposed between the bore in the respective catheter hub assembly, and the stopper assembly.