Abstract: A cannula which increases in pliability during use, wherein prior to use the cannula includes at least one material of variable hardness or at least two materials of differing hardness, of which the variably harder or material having the greater hardness is yielded or dissolved during application.

Abstract: An insertion head for medical or pharmaceutical uses including a housing with a side that can be positioned on tissue and a penetrating device with a tip, the penetrating device carried by the housing in a protected orientation in which the housing covers the tip and a penetrating orientation in which the tip protrudes, wherein the penetrating orientation is angled relative to the protected orientation.

Abstract: A catheter head for medical and therapeutic applications including a catheter head housing, a cannula which protrudes from the catheter head and is to be introduced into organic tissue, a container connection for connecting a container containing a fluid to be administered, a fluid channel through which the fluid flows during the administration thereof, an injection needle connection for connecting an injection needle, a connection chamber which is adjacent to the cannula, the injection needle connection, and the fluid channel, and a connector that is arranged in a first position such that the injection needle can be guided from the injection needle connection into the connection chamber and then into the cannula, and in a second position such that it closes the connection chamber from the injection needle connection in a sealing manner after the injection needle has been removed.

Abstract: An insertion device for infusion sets, comprising a housing for enclosing an infusion set, a drive device for displacing the infusion set for insertion, wherein a portion of the drive device moves in an insertion direction, the movement being substantially friction-free relative to the housing.

Abstract: An insertion device for infusion sets, including a housing for generally enclosing an infusion set placed in the insertion device and a drive device for displacing the infusion set, wherein the displacing is as friction-free as possible with respect to the housing.

Abstract: A cannula which increases in pliability during use, wherein prior to use the cannula includes at least one material of variable hardness or at least two materials of differing hardness, of which the variably harder or material having the greater hardness is yielded or dissolved during application.

Abstract: A device for inserting a cannula into tissue, including a cannula, a protective element which can accommodate said cannula, an operating element for moving the cannula out of the protective element, and a holder fixedly connected to the cannula. The invention encompasses a system for connecting a liquid supply to the cannula.