IP Library Granted Patent US 11,559,624
Granted Patent B2
US 11,559,624 · App. 16/691,506 · Granted Jan 24, 2023

Systems for wearable infusion port and associated pump

Inventors: Eric Allan Larson (Simi Valley, CA); Shixin Chen (Simi Valley, CA); Magnus Johansson (Oak Park, CA); Louis J. Lintereur (Stevenson Ranch, CA); Austin Reeder (Los Angeles, CA); Peter Schultz (Chatsworth, CA)
Assignee: MEDTRONIC MINIMED, INC.
A61M5/14244A61M5/16881A61M2205/3337A61M2205/3576
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Quick Facts
Patent No.
US 11,559,624
App. No.
16/691,506
Granted
Jan 24, 2023
Kind
B2
Abstract

A wearable infusion port for infusing a fluid includes a first housing that defines an inlet port to receive the fluid, and a second housing coupled to the first housing. The second housing is to be coupled to an anatomy. The wearable infusion port includes a valve assembly fluidly coupled to the inlet port, and the valve assembly is movable from a closed state to an opened state to dispense the fluid. The wearable infusion port includes a cannula assembly extending through the first housing and the second housing, and the cannula assembly includes a cannula fluidly coupled to the valve assembly. The cannula is to be coupled to the anatomy. The wearable infusion port includes a flow sensor fluidly coupled to the inlet port and the cannula. The flow sensor is fluidly coupled upstream from the cannula to observe an amount of fluid received by the cannula.

Claims (32)

1. A wearable infusion port for infusing a fluid, comprising:

a first housing that defines an inlet port to receive the fluid;

a second housing coupled to the first housing, the second housing to be coupled to an anatomy;

a valve assembly fluidly coupled to the inlet port to receive the fluid, the valve assembly including a rotor having a rotor conduit that is selectively fluidly coupled to an outlet conduit of the valve assembly, the valve assembly movable from a closed state to an opened state to dispense the fluid via rotation of the rotor;

a cannula assembly extending through the first housing and the second housing, the cannula assembly including a cannula fluidly coupled to the valve assembly to receive the fluid, the cannula to be coupled to the anatomy to infuse the fluid into the anatomy; and

a flow sensor fluidly coupled to the inlet port and the cannula, the flow sensor fluidly coupled upstream from the cannula to observe an amount of fluid received by the cannula.

2. The wearable infusion port of claim 1 , wherein the valve assembly is enclosed by the first housing and the second housing, and the valve assembly includes a valve housing and a shaft, and the shaft is movable relative to the valve housing to rotate the rotor.

3. The wearable infusion port of claim 2 , further comprising an actuator pinion having a plurality of teeth, wherein the shaft includes a plurality of shaft teeth that engage with the plurality of teeth of the actuator pinion to move the rotor relative to the valve housing.

4. The wearable infusion port of claim 3 , further comprising an end plate coupled to the rotor and the actuator pinion, and the actuator pinion drives the end plate to move the rotor relative to the valve housing.

5. The wearable infusion port of claim 2 , further comprising an actuator wire coupled to the shaft, the actuator wire movable between a first state and a second state to move the shaft, and in the second state the valve assembly is in the opened state.

6. The wearable infusion port of claim 5 , wherein the shaft defines a shaft conduit, and the movement of the shaft relative to the valve housing fluidly couples the shaft conduit with the cannula.

7. The wearable infusion port of claim 1 , further comprising a control system that receives the observation from the flow sensor to transmit the amount of fluid received by the cannula to a remote device.

8. The wearable infusion port of claim 1 , further comprising a physiological characteristic sensor coupled to the first housing proximate an end of the first housing and spaced apart from the inlet port, and the physiological characteristic sensor is to be coupled to the anatomy to observe a physiological characteristic associated with the anatomy.

9. A wearable infusion port for infusing a fluid, comprising:

a first housing that defines an inlet port to receive the fluid;

a second housing coupled to the first housing, the second housing to be coupled to an anatomy;

a valve assembly fluidly coupled to the inlet port to receive the fluid, the valve assembly including a rotor having a rotor conduit that is selectively fluidly coupled to an outlet conduit of the value assembly, the valve assembly movable, via rotation of the rotor, from a closed state to an opened state to dispense the fluid;

a cannula assembly extending through the first housing and the second housing, the cannula assembly including a cannula fluidly coupled to the valve assembly to receive the fluid, the cannula to be coupled to the anatomy to infuse the fluid into the anatomy; and

a physiological characteristic sensor coupled to the first housing proximate an end of the first housing and spaced apart from the inlet port, the physiological characteristic sensor to be coupled to the anatomy to observe a physiological characteristic associated with the anatomy.

10. The wearable infusion port of claim 9 , wherein the valve assembly is enclosed by the first housing and the second housing, and the valve assembly includes a valve housing and a shaft, and the shaft is movable relative to the valve housing to rotate the rotor.

11. The wearable infusion port of claim 10 , further comprising an actuator pinion having a plurality of teeth, wherein the shaft includes a plurality of shaft teeth that engage with the plurality of teeth of the actuator pinion to move the rotor relative to the valve housing.

12. The wearable infusion port of claim 11 , further comprising an end plate coupled to the rotor and the actuator pinion, and the actuator pinion drives the end plate to move the rotor relative to the valve housing.

13. The wearable infusion port of claim 10 , further comprising an actuator wire coupled to the shaft, the actuator wire movable between a first state and a second state to move the shaft, and in the second state the valve assembly is in the opened state.

14. The wearable infusion port of claim 9 , further comprising a flow sensor fluidly coupled to the inlet port and the cannula, the flow sensor fluidly coupled upstream from the cannula to observe an amount of fluid received by the cannula.

15. The wearable infusion port of claim 14 , further comprising a control system that receives the observation from the flow sensor and the observation from the physiological characteristic sensor to transmit the observations to a remote device.

16. A wearable infusion port for infusing a fluid, comprising:

a first housing that defines an inlet port to receive the fluid;

a second housing coupled to the first housing, the second housing to be coupled to an anatomy;

a valve assembly fluidly coupled to the inlet port to receive the fluid, the valve assembly including a valve housing and a rotor defining at least one rotor conduit downstream from the inlet port, the rotor being rotatably movable relative to the valve housing to move the valve assembly between a closed state and an opened state to dispense the fluid; and

a cannula assembly extending through the first housing and the second housing, the cannula assembly including a cannula fluidly coupled to the valve assembly to receive the fluid in the opened state, the cannula to be coupled to the anatomy to infuse the fluid into the anatomy.

17. The wearable infusion port of claim 16 , further comprising a flow sensor fluidly coupled to the inlet port and the cannula, the flow sensor fluidly coupled upstream from the cannula to observe an amount of fluid received by the cannula.

18. The wearable infusion port of claim 16 , further comprising an actuator wire coupled to the shaft, the actuator wire movable between a first state and a second state to move the shaft, and in the second state the valve assembly is in the opened state.

Assignments (2)
SECURITY INTEREST Recorded Jan 16, 2026
From: MEDTRONIC MINIMED, INC.; COMPANION MEDICAL, INC.
To: CITIBANK, N.A.
Reel/Frame 074394/0237 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 13, 2019
From: LARSON, ERIC ALLAN; CHEN, SHIXIN; JOHANSSON, MAGNUS; LINTEREUR, LOUIS J.; REEDER, AUSTIN; SCHULTZ, PETER
To: MEDTRONIC MINIMED, INC.
Reel/Frame 051282/0358 →
Cited By (1)
US 1,130,751