Manually actuated infusion device with display

• US 10,350,348 B2
• Filed: 05/23/2016
• Issued: 07/16/2019
• Est. Priority Date: 05/23/2016
• Status: Active Grant

• Current Assignee: LifeScan IP Holdings, LLC
• Original Assignee: LifeScan IP Holdings, LLC
• Inventors: Heiman, Stephen
• Primary Examiner(s): Mehta, Bhisma
• Assistant Examiner(s): Ponton, James D
• Application Number:
  US15/161,387
• Publication Number:
  US 20170333622A1
• Time in Patent Office: 1,149 Days
• CPC Class Codes: A61M 2005/14268 with a reusable and a disposable component
• CPC Class Codes: A61M 2005/3126 Specific display means related to dosing
• CPC Class Codes: A61M 2205/3306 Optical measuring means
• CPC Class Codes: A61M 2205/581 by audible feedback
• CPC Class Codes: A61M 2205/582 by tactile feedback
• CPC Class Codes: A61M 2205/583 by visual feedback
• CPC Class Codes: A61M 2205/8206 battery-operated
• CPC Class Codes: A61M 2209/04 Tools for specific apparatus
• CPC Class Codes: A61M 5/1424 Manually operated pumps
• CPC Class Codes: A61M 5/14248 of the skin patch type
• CPC Class Codes: A61M 5/1452 pressurised by means of pistons
• CPC Class Codes: A61M 5/1456 with a replaceable reservoir comprising a piston rod to be moved into the reservoir, e.g. the piston rod is part of the removable reservoir
• CPC Class Codes: A61M 5/14566 with a replaceable reservoir for receiving a piston rod of the pump
• CPC Class Codes: A61M 5/3148 Means for causing or aiding aspiration or plunger retraction
• CPC Class Codes: A61M 5/31568 Means keeping track of the total dose administered, e.g. since the cartridge was inserted

Abstract

A manually operated medicament infusion device is provided. The device is capable of delivering an accurately controlled volume of medicament with reliability. Additionally, the device includes a battery-operated indication device for tracking the number of doses of medication delivered. Optionally, the device includes a ratchet and pawl to prevent inadvertent dispensing of medicament.

Claims

1. A medicament infusion device comprising:

a.) a housing;

b.) a battery-operated indication device within the housing, wherein the indication device provides information about a medicament in a medicament cartridge;

c.) a manually operated gearing mechanism consisting essentially of a manually operated drive wheel, a leadscrew base and a leadscrew shaft extending from the leadscrew base;

d.) a piston comprising a piston end, wherein the piston is indexed in a first direction along the leadscrew shaft in response to turning of the manually operated drive wheel;

e.) the medicament cartridge having a plunger therein that is engaged by the piston end;

f.) a removable retainer for retaining the medicament cartridge and piston therein; and

g.) a sensing mechanism for sensing a position of the piston on the leadscrew shaft.

2. The infusion device of claim 1, further comprising a rewind tool for returning the piston to an initial position on the leadscrew shaft.

3. The infusion device of claim 1, further comprising a ratchet and pawl capable of preventing inadvertent turning of the manually operated drive wheel.

4. The infusion device of claim 1, further comprising an adhesive pad on a surface of the housing for adhering the infusion device to a body of a device user.