# US 8,540,673 B2 · Disposable infusion device with actuation lock-out

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 8,540,673 B2
- Document ID: US8540673B2
- Status: Granted
- Kind: B2
- Application number: 12/077,530
- Filed: 2008-03-18
- Published: 2009-09-24
- Granted: 2013-09-24
- Earliest claimed: 2008-03-18
- Assignees: Calibra Medical, Inc.
- Applicants: Craig Hines; Cory Williamson
- Inventors: Craig Hines; Cory Williamson
- Web page: https://patentgrep.com/patent/US8540673B2

## CPC

- A61M 5/14248: {of the skin patch type}
- A61M 2205/276: preventing unwanted use
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}

## Abstract

An infusion system includes a wearable infusion device, a safety assembly, and a tool. The device includes a liquid medicament dispenser having a base attachable to a patient's skin and that, when enabled, causes the liquid medicament to flow to beneath the skin of the patient, and an actuator that, when engaged, enables the dispenser. The safety assembly precludes unintended engagement of the actuator and the tool is arranged to disable the safety assembly.

## Claims

### Claim 1

A wearable infusion device comprising:
a liquid medicament dispenser having an enclosure, a base attachable to a patient's skin and an actuator that, when enabled, causes a dose of the liquid medicament to flow to beneath the skin of the patient, the dispenser being arranged to provide a plurality of doses of the liquid medicament while being attached to the patient's skin;
and
a safety assembly arranged to preclude the actuator from being enabled, the safety assembly being releasable to permit the actuator to be enabled for delivering a dose of the liquid medicament and resettable after the delivery of each dose of the liquid medicament to preclude the actuator from being enabled between dose deliveries, the safety assembly being releasable and resettable while the device is attached to the patient's skin.

### Claim 2 (depends on 1)

The device of claim 1 wherein the actuator includes at least one control button which when depressed, enables the actuator and wherein the safety assembly comprises a moveable cover that overlies the at least one control button when precluding the actuator from being enabled and moveable to expose the at least one control button to permit the actuator to be enabled.

### Claim 3 (depends on 2)

The device of claim 2, further comprising a frame attachable to the dispenser enclosure, wherein the moveable cover is mounted for sliding movement on the frame.

### Claim 4 (depends on 1)

The device of claim 1 wherein the safety assembly includes an activation lever and a drive member.

### Claim 5 (depends on 1)

The device of claim 1, wherein the safety assembly comprises a lock mechanism.

### Claim 6 (depends on 1)

The device of claim 1 wherein the safety assembly includes a locking pin arranged to reversibly interfere with the actuator.

### Claim 7 (depends on 6)

The device of claim 6, wherein the safety assembly further includes an urging member that urges the locking pin into an interfering position to interfere with the depression of the actuator.

### Claim 8 (depends on 7)

The device of claim 7, wherein the locking pin is further arranged for temporary release from the interfering position against the urging of the urging member.

### Claim 9 (depends on 1)

The device of claim 1, wherein the safety assembly is arranged to preclude access to the actuator.

### Claim 10 (depends on 1)

The device of claim 1, wherein the safety assembly is arranged to disable actuator enablement.