Needle assembly for drug pump

Patent metadata

Field	Value
Publication number	US-2016228644-A1
Application number	US-201615132740-A
Country	US
Kind code	A1
Filing date	Apr 19, 2016
Priority date	Jan 19, 2010
Publication date	Aug 11, 2016
Grant date	—

Abstract

An apparatus ( 110 ) includes an activation mechanism ( 20 ) and a safety latch ( 122 ). The activation mechanism is operative to deploy a needle ( 116 ) to protrude out of a housing ( 112 ), the needle ( 116 ) having a longitudinal axis. The safety latch ( 122 ) is movably mounted on the housing ( 112 ) and formed with a needle opening ( 129 ) to allow the needle ( 116 ) to pass therethrough. The safety latch ( 122 ) has a first position wherein the needle ( 116 ) is aligned to pass through the needle opening ( 129 ) and a second position wherein the safety latch ( 122 ) is moved with respect to the housing ( 112 ) such that the needle ( 116 ) is blocked from movement in a direction parallel to the longitudinal axis thereof by a portion of the safety latch ( 122 ) distanced from the needle opening ( 129 ).

First claim

We claim:

1 . An apparatus for administering a substance to a subject comprising:
a housing; a release apparatus operative to release a needle to protrude out of the housing; a safety latch coupled to the housing and formed with a needle opening for advancement of the needle therethrough, the safety latch being movable from an initially down position to an up position when the apparatus has been placed on the subject; and a safety latch position sensor configured to detect the position of the safety latch, and activate the release apparatus to release the needle to protrude out of the housing and pierce the subject when the safety latch has been moved to the up position.

2 . The apparatus of claim 1 , further comprising a first biasing device for applying an urging force on the needle to protrude out of the housing.

3 . The apparatus of claim 1 , further comprising a microsensor for detecting a position of the needle.

4 . The apparatus according to claim 1 , wherein the safety latch is flush with the housing in the up position, and the needle is aligned with the needle opening.

5 . The apparatus according to claim 1 , wherein the safety latch is pivotally mounted on said housing, and is pivoted away from the housing in the down position, and the needle is not aligned with the needle opening.

6 . The apparatus of claim 5 , further comprising a second biasing device, biasing the safety latch into the down position.

Assignees

• Medimop Medical Projects Ltd

Inventors

• Cabiri Oz

Classifications

• A61M5/14248 Primary

  of the skin patch type · CPC title

• A61M2005/2073

  preventing premature release, e.g. by making use of a safety lock · CPC title

• A61M5/2033 Primary

  Spring-loaded one-shot injectors with or without automatic needle insertion (multishot dosing syringes A61M5/31525, needle insertion only A61M5/3287) · CPC title

• A61M5/142

  Pressure infusion, e.g. using pumps · CPC title

• A61M2005/206

  With automatic needle insertion · CPC title