FLUID DELIVERY DEVICE NEEDLE RETRACTION MECHANISMS, CARTRIDGES AND EXPANDABLE HYDRAULIC FLUID SEALS

• Main Authors: GEOFFREY H JENKINS, DANIEL A DUBE, LEVESQUE STEVEN F, MATTHEW P JOHNSON, STANDLEY ROBERT L
• Format: Patent
• Language: English; Japanese
• Published: 10.12.2015
• Subjects: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE

PROBLEM TO BE SOLVED: To provide suitable fluid delivery device needle retraction mechanisms, cartridges and expandable hydraulic fluid seals.SOLUTION: A fluid delivery device includes an automatic needle retraction mechanism configured to automatically retract a delivery end of a needle into a housing. In one embodiment, the needle assembly is configured to automatically withdraw the delivery end of the needle into the housing upon an actuator moving from a first position to a second position. In one embodiment, the needle assembly is configured to automatically withdraw the delivery end of the needle into the housing upon decoupling a bottom surface of the housing from a skin surface. In a further embodiment, the fluid delivery device comprises a locking member configured to keep the delivery end of the needle within the housing in a locked position. 【課題】好適な流体送達デバイス針後退機構、カートリッジ、および拡張可能油圧流体シールを提供すること。【解決手段】流体送達デバイスは、筐体の中に針の送達端を自動的に後退させるように構成される自動針後退機構を含む。一実施形態では、針アセンブリは、アクチュエータが第１の位置から第２の位置まで移動すると、筐体の中に針の送達端を自動的に引き込むように構成される。一実施形態では、針アセンブリは、皮膚表面から筐体の底面を分断すると、筐体の中に針の送達端を自動的に引き込むように構成される。さらなる実施形態では、流体送達デバイスは、係止位置で針の送達端を筐体内に保つように構成される係止部材を備える。【選択図】図１