Needle insertion systems and methods

摘要

A housing may have a needle, plunger, and bias mechanism supported within the housing by a tab configured to retain the plunger in position and to allow the plunger to move under bias force imparted by the bias mechanism to move the needle to an insert position when the tab is removed. A base and a structure may be configured for relative movement there between and may be adapted to be secured to a user with a cannula extending through a body of the structure into the user during use of a medical device. A housing may be adapted to be secured to a user to support a medical device operable with an insertion needle, the housing having a magnifying material for increasing visibility of an injection site.

主权项

1. A medical device, the device comprising:
a medical monitoring or treatment device configured to provide a monitoring or treatment operation on a user; a base adapted to be secured to the user, in contact with clothing or skin of the user during operation of the medical monitoring or treatment device, the base having an internal area; a cannula housing structure adapted to be secured to the user, the cannula housing further adapted to be in contact with clothing or skin of the user during operation of the medical monitoring or treatment device, the cannula housing structure is located within the internal area of the base, the cannula housing structure connected to an supported by the base, the cannula housing structure having a body, the cannula housing structure and the base configured for relative movement therebetween, the cannula housing structure arranged to be separate and apart from the base; a cannula extending through the body of the cannula housing structure during operation of the medical monitoring or treatment device, the cannula for inserting into the skin of the user for operation of the medical monitoring or treatment device; a flexible connection connecting the base and the cannula housing structure for allowing relative movement between the cannula housing structure and the base while the cannula housing structure is located within the internal area of the base, after the cannula is inserted into the skin of the user and during operation of the medical monitoring or treatment device; a first adhesive material provided on at least a portion of the cannula housing structure, the first adhesive material having an adhesion strength for adhering the cannula housing to the clothing or skin of the user; and a second adhesive material provided on at least a portion of the base, the second adhesive material having an adhesion strength for adhering the base to the clothing or skin of the user; wherein the cannula housing structure is supported within the internal area of the base and the internal area of the base includes a space around the cannula housing structure for allowing relative movement in an axial direction and a lateral direction between the cannula housing structure and the base, while the cannula is in the skin of the user, and while the base is adhered to the clothing or skin of the user, and wherein the flexible connection connecting the base and the cannula housing structure is configured to allow relative movement between the cannula housing structure and the base while the cannula is locked in an extended state when the cannula is in the skin of the user for operation of the medical monitoring or treatment device.