Method and device for puncture of insertion needle into subcutaneous fatty tissue

摘要

An insertion device with an underside for placing on the skin of a patient, which has a recess for an insertion needle. The insertion device has means for forming a skin surface rising like a step or slope and facing towards the recess, preferably bearing on the recess. The means for forming the step or slope may include first and second pressure areas for pressing the skin with the recess for the needle located between the first and second pressure areas. The device may be configured whereby a downwardly extending cutting plane, in which the insertion needle lies, intersects the first pressure area in a first line and the second pressure area in a second line, and wherein the first line in the vicinity of the recess extends at a greater height than the second line. At least one of the two pressure areas may be a strip.

主权项

1. An insertion device for use with a patient, the insertion device defining a vertical direction, a longitudinal direction perpendicular to the vertical direction and a lateral direction perpendicular to both the vertical and longitudinal directions, the insertion device comprising:
a lower side adapted to be placed on the skin of the patient and an upper side positioned vertically opposite the lower side, the lower side including a recess for an insertion needle—generally extending in the longitudinal direction and—held by the insertion device; means for forming a skin area rising in the manner of a step or slope facing the recess; and wherein the means for forming the skin area rising in the manner of a step or slope includes a first pressure area and a second pressure area adapted to be pressed against the skin, wherein the recess for the insertion needle is located between the first pressure area and the second pressure area, and wherein a sectional plane which extends from the upper side in a downward vertical direction to the lower side and in which the insertion needle is located intersects the first pressure area in a first line and the second pressure area in a second line, and wherein the first line runs proximate the recess at a greater vertical height than the second line; wherein at least one of the two pressure areas is a longitudinally extending strip having a longitudinal length at least twice as great as a lateral width of the strip; and wherein the insertion device broadens in each lateral direction in an upward vertical direction, starting at opposite lateral sides of the lower side.