Safety cap for a cannula

Safety cap for a cannula, comprising an outer sleeve (10) having a rolling end (11) and a top end (12) made of a rigid plastic material and a seal element (30) made of a gas-permeable, flexible plastic, said outer sleeve (10) and said seal element (30) being integrally connected with each other so that there is no gap between them, said outer sleeve (10) having an essentially cylindrical base section (13) at its bottom end (11), means defining an insertion opening (12) in said base section for the cannula, a top section (14) connected to said base section (13) and extending all the way to the top end (15) of the outer sleeve (10), and means defining a pass-through opening (16) in said sleeve (10), in which the seal element (30) is located, closing off the top end (15) of the outer sleeve, said outer sleeve (10) being interrupted by at least one lateral opening (18) in its long side between the bottom end (11) and the top end (15), wherein the lateral opening (18) is arranged directly adjacent to the base section (13) of the outer sleeve (10) and continues into the top section (14), with the lateral opening (18) extending into the region of the seal element (30), in which the channel (33) for reception of the cannula is located , and the lateral opening (18) of the outer sleeve is filled completely by the seal element (30), and of a thickness corresponding to the thickness of the wall of the outer sleeve (10), said insertion opening being of a predetermined diameter and the lateral opening spaced a predetermined axial distance from the lower edges of the base section (13) to limit the angle of the cannula so that it does not pierce the lateral opening (18).

Safety cap for a cannula, comprising an outer sleeve (10) having a rolling end (11) and a top end (12) made of a rigid plastic material and a seal element (30) made of a gas-permeable, flexible plastic, wherein said outer sleeve (10) and said seal element (30) are formed jointly by a two-component injection molding method and are integrally connected with each other so that there is no gap between them, said outer sleeve (10) has an essentially cylindrical base section (13) at its bottom end (11), means defining an insertion opening (12) in said base section for the cannula, a top section (14) connected to said base section (13) and extending all the way to the top end (15) of the outer sleeve (10), and means defining a pass-through opening (16) in said sleeve (10), in which the seal element (30) is located, closing off the top end (15) of the outer sleeve, said outer sleeve (10) being interrupted by at least one lateral opening (18) in its long side between the bottom end (11) and the top end (15), wherein the lateral opening (18) is arranged directly adjacent to the base section (13) of the outer sleeve (10) and continues into the top section (14), with the lateral opening (18) extending into the region of the seat element (30), in which the channel (33) for reception of the cannula is located, and the lateral opening (18) of the outer sleeve is filled completely by the seal element (30), with a thickness corresponding to the thickness of the wall of the outer sleeve (10).