Gel-coupled pressure sensor device with interference-independent contact side for connection to an infusion hose

A pressure sensor device comprising:

• a pressure sensor housing;
• a gel mounted in the pressure sensor housing so as to form a pressure absorption and pressure transmission element;
• and
• a compressive force sensor,
• the pressure absorption and pressure transmission element comprising a pressure inlet portion,
• the pressure absorption and pressure transmission element further comprising a contact side projecting freely from the pressure sensor housing,
• the contact side defining an insertion direction for a fluid pressure hose inserted or insertable into the pressure sensor device,
• the pressure absorption and pressure transmission element extending from the contact side through the pressure sensor housing to the compressive force sensor,
• the pressure inlet portion defining a longitudinal axis and a transverse axis,
• the pressure inlet portion having a shape that is symmetrical relative to the longitudinal axis and to the transverse axis,
• the pressure inlet portion further defining a longitudinal extent parallel to the insertion direction and a longitudinal extent transverse to the insertion direction, and
• the longitudinal extent parallel to the insertion direction being greater than the longitudinal extent transverse to the insertion direction,
• wherein the pressure inlet portion tapers towards its ends.

A pressure sensor device comprising:

• a pressure sensor housing;
• a gel mounted in the pressure sensor housing so as to form a pressure absorption and pressure transmission element;
• and
• a compressive force sensor,
• the pressure absorption and pressure transmission element comprising a pressure inlet portion,
• the pressure absorption and pressure transmission element further comprising a contact side projecting freely from the pressure sensor housing,
• the contact side defining an insertion direction for a fluid pressure hose inserted or insertable into the pressure sensor device,
• the pressure absorption and pressure transmission element extending from the contact side through the pressure sensor housing to the compressive force sensor,
• the pressure inlet portion defining a longitudinal axis and a transverse axis,
• the pressure inlet portion having a shape that is symmetrical relative to the longitudinal axis and to the transverse axis,
• the pressure inlet portion further defining a longitudinal extent parallel to the insertion direction and a longitudinal extent transverse to the insertion direction,
• the longitudinal extent parallel to the insertion direction being greater than the longitudinal extent transverse to the insertion direction,
• wherein the contact side has an elliptical shape, and
• wherein the pressure absorption and pressure transmission element has a cross-section below the pressure inlet portion that tapers in a funnel-shaped manner toward the compressive force sensor.