Charger for pressure sensing catheter

A charger for charging one or more balloons of a pressure sensing catheter with a pressure transmission medium, the charger comprising:

• a charger housing;
• a charging port configured to receive a portion of a proximal section of a pressure sensing catheter, the charging port including:
• a central axis,
• a first end,
• a second end opposite to the first end in a first direction parallel to the central axis,
• a connecting charging port portion located between the first end and the second end of the charging port, the connecting charging port portion forming at least a portion of a length of an interior surface of the charging port, the connecting charging port portion tapering inward toward the central axis along the length of the interior surface, the connecting charging port portion configured to contact a seal on the proximal section of the pressure sensing catheter as the proximal section of the pressure sensing catheter is received in the charging port,
• a flute extending between a first end and a second end of the flute, the second end of the flute being opposite to the first end of the flute in the first direction to define a fluted length, the flute being defined as a recess on the interior surface of the charging port,
• an unfluted length included at the interior surface of the charging port, the unfluted length of the charging port defined between the second end of the flute and the second end of the charging port, and
• the pressure transmission medium therewithin;
• a pressure transducer positioned near the second end of each charging port, the second end being opposite to a direction in which the proximal section of the pressure sensing catheter is to be received in the charging port,
• wherein each of the first end and the second end of the flute being spaced apart a length from the second end of the charging port and thereby located away from the pressure transducer, and wherein at least some of the unfluted length and at least some of the fluted length being in the connecting charging port portion, the unfluted length being further configured to form a fluid seal with the proximal section of the pressure sensing catheter, the fluid seal of the unfluted length establishing fluid isolation between the flute and the pressure transducer, and
• wherein the pressure transmission medium in the flute is displaced away from a lumen of the pressure sensing catheter so as to not charge the one or more balloons, and wherein pressure transmission medium in the unflute length is displaced toward the lumen of the pressure sensing catheter so as to charge the one or more balloons thereby permitting a predetermined volume of the pressure transmission medium to be displaced from the unfluted length of the charging port when the connecting charging port portion of the charging port engages with the proximal section of the pressure sensing catheter.

A charger for charging one or more balloons of a pressure sensing catheter with a pressure transmission medium, the charger comprising:

• a charger housing;
• a charging port including:
• a central axis,
• a first end,
• a second end opposite to the first end in a first direction parallel to the central axis,
• a connecting charging port portion located between the first end and the second end of the charging port, the connecting port portion forming at least a portion of a length of an interior surface of the charging port, the connecting charging port portion tapering inward toward the central axis along the length of the interior surface,
• a flute extending between a first end and a second end of the flute, the second end of the flute being opposite to the first end of the flute in the first direction to define a fluted length, the flute being defined as a recess on the interior surface of the charging port,
• unfluted length included at the interior surface of the charging port, the unfluted length of the charging port defined between the second end of the flute and the second end of the charging port, and
• the pressure transmission medium therewithin;
• a pressure transducer positioned near the second end of each charging port, the second end being opposite to a direction in which the proximal section of the pressure sensing catheter is to be received in the charging port;
• and
• the pressure sensing catheter having a proximal section with a seal, wherein the charging port is configured to receive at least a portion of the proximal section of the pressure sensing catheter, and wherein the connecting charging port portion is configured to contact and further compress the seal via the tapering of the connecting charging port portion as the proximal section of the pressure sensing catheter is moved along the connecting charging port portion toward the second end of the charging port,
• wherein each of the first end and the second end of the flute being space apart a length from the second end of the charging port and thereby located away from the pressure transducer
• wherein at least some of the unfluted length and at least some of the fluted length being in the connecting charging port portion such that the connecting charging port portion tapers inward toward the central axis along the length of the interior surface along at least a portion of the fluted length and at least a portion of the unfluted length.