# US 12,005,229 B2 · Drug delivery system with a delay mechanism

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- Number: US 12,005,229 B2
- Document ID: US12005229B2
- Status: Granted
- Kind: B2
- Application number: 17/957,496
- Filed: 2022-09-30
- Published: 2023-01-26
- Granted: 2024-06-11
- Earliest claimed: 2011-11-22
- Assignees: Becton, Dickinson and Company
- Applicants: Becton, Dickinson and Company
- Inventors: Peter Krijger; Philip Song; Curt Bingham; Stephen C. Simmons; Paul Alchas
- Web page: https://patentgrep.com/patent/US12005229B2

## CPC

- A61M 5/1452: {pressurised by means of pistons}
- A61M 5/145: using pressurised reservoirs, e.g. by means of pistons
- A61M 5/1684: {by detecting the amount of infusate remaining, e.g. signalling end of infusion}
- A61M 5/1454: {spring-actuated, e.g. by a clockwork}
- A61M 5/20: Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically (A61M5/142 takes precedence)
- A61M 5/2033: {Spring-loaded one-shot injectors with or without automatic needle insertion (multishot dosing syringes A61M5/31525, needle insertion only A61M5/3287)}
- A61M 5/31501: {Means for blocking or restricting the movement of the rod or piston (A61M5/5013 takes precedence)}
- A61M 5/3157: {Means providing feedback signals when administration is completed (A61M5/20 takes precedence)}
- A61M 5/3158: {the component being manually operated or triggered by an axially moving actuator operated by user, e.g. an axially movable injection button}
- A61M 5/321: {Means for protection against accidental injuries by used needles}
- A61M 5/5086: {for indicating if defective, used, tampered with or unsterile}
- A61M 2005/14506: {mechanically driven, e.g. spring or clockwork}
- A61M 2005/2026: {Semi-automatic, e.g. user activated piston is assisted by additional source of energy}
- A61M 2205/276: preventing unwanted use
- A61M 2205/581: by audible feedback
- A61M 2205/582: by tactile feedback
- 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

A medicament delivery system, including a medicament container and a delay mechanism that is activated prior to completion of medicament delivery from the medicament container. The delay mechanism automatically activates a subsystem or initiates an operation subsequent to the completion of the medicament delivery.

## Claims

### Claim 1

A medicament delivery system comprising:
a base for placement against a patient's skin;
a medicament container fixedly disposed on the base and initially containing a dose of medicament for delivery;
a needle for delivering the medicament from the medicament container to the patient, the needle being displaceable relative to the base; and
a delay mechanism configured to, subsequent to initiation of the medicament delivery, automatically activate a subsystem subsequent to a predetermined time delay after activation of the delay mechanism.

### Claim 2 (depends on 1)

The medicament delivery system of claim 1, wherein the subsystem comprises withdrawal of the needle, or end-of-dose indication.

### Claim 3 (depends on 1)

The medicament delivery system of claim 1, further comprising a plunger displaceably disposed relative to the medicament container for ejecting the medicament from the medicament container.

### Claim 4 (depends on 1)

The medicament delivery system of claim 1, wherein the delay mechanism comprises a controller and a portable power source, and wherein, upon the activation of the delay mechanism, the controller controls the subsystem to automatically activate the subsystem subsequent to the predetermined time delay.

### Claim 5 (depends on 4)

The medicament delivery system of claim 4, wherein the controller comprises a printed circuit board.

### Claim 6 (depends on 4)

The medicament delivery system of claim 4, wherein the controller is configured to start a delay timer upon the activation of the delay mechanism.

### Claim 7 (depends on 1)

The medicament delivery system of claim 1, further comprising:
a plunger disposed within the medicament container;
wherein the delay mechanism comprises a follower, released by a predetermined displacement of the plunger, and constrained to follow an elongated path that is longer than a path followed by the plunger, an arrival of the follower at an end of the elongated path activating the subsystem.