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US 10,058,652 B2Granted
Infusion pump device
AssigneeMicrel Medical Devices S.A.
InventorAchilleas Tsoukalis
Life of this patent
Estimating the term…
Abstract
An infusion pump device comprises a pumping means having a fluid inlet which is adapted to be connected to a vial for taking fluid out of the vial and a fluid outlet which is adapted to be connected to an infusion catheter, and a controlling means which is adapted to be connected to the vial and to control pressure inside the vial so as to avoid occurrence of underpressure at the fluid inlet.
Claims20
An infusion pump device comprising:
- a pumping means having a fluid inlet which is adapted to be connected to a vial for taking fluid out of the vial and a fluid outlet which is adapted to be connected to an infusion catheter, wherein the pumping means is a rotary peristaltic pump means comprising:
- a stationary flexible first tubing which includes an inlet defining the fluid inlet and an outlet defining the fluid outlet and is provided between the fluid inlet and the fluid outlet with a bent portion having an essentially part-cycle form, and
- a rotor which is provided with engagement elements for locally engaging the bent portion of the first tubing so as to squeeze it during rotation for a pumping action;
- and
- a controlling means which is adapted to be connected to the vial and to control pressure inside the vial so as to avoid occurrence of underpressure at the fluid inlet, wherein the controlling means comprises:
- an air line having an air inlet and an air outlet, wherein the air outlet is adapted to be connected to the vial for delivering air taken up through the air inlet into the vial, and
- a stationary flexible second tubing which includes an inlet defining the air inlet and an outlet defining the air outlet so as to define the air line and is provided between the air inlet and the air outlet with a bent portion having an essentially part-cycle form, wherein the rotor is provided with engagement elements for locally engaging the bent portion of the second tubing so as to squeeze it during rotation, wherein the cross-section of the second tubing is larger than the cross-section of the first tubing.
4 more elements
An infusion pump device comprising:
- a pumping means having a fluid inlet which is adapted to be connected to a vial for taking fluid out of the vial and a fluid outlet which is adapted to be connected to an infusion catheter, wherein the pumping means is a rotary peristaltic pump means comprising:
- a stationary flexible first tubing which includes an inlet portion defining the fluid inlet and an outlet portion defining the fluid outlet and is provided between both the inlet and outlet portions with a bent portion having an essentially part-cycle form, wherein the cross-section of the outlet portion of the first tubing is smaller than the cross-section of at least the bent portion of the first tubing, and
- a rotor which is provided with engagement elements for locally engaging the bent portion of the first tubing so as to squeeze it during rotation for a pumping action;
- and
- a controlling means adapted to be connected to the vial and to control pressure inside the vial so as to avoid occurrence of underpressure at the fluid inlet, the controlling means comprising:
- an air line having an air inlet and an air outlet, wherein the air outlet is adapted to be connected to the vial for delivering air taken up through the air inlet into the vial, and
- a stationary flexible second tubing which includes an inlet defining the air inlet and an outlet defining the air outlet so as to define the air line and is provided between the air inlet and the air outlet with a bent portion having an essentially part-cycle form, wherein the rotor is provided with engagement elements for locally engaging the bent portion of the second tubing so as to squeeze it during rotation, wherein the cross-section of the second tubing is larger than the cross-section of the first tubing.
4 more elements
Dependencies are inferred from the claim text.