Invisible needle

An inserter for an infusion set comprising

• a housing,
• a carrier body comprising at least one inclined surface, the carrier body carrying an infusion part, the infusion part adjoined to a cannula and configured to be releasable from the carrier body,
• an insertion needle, the insertion needle secured to a needle hub;
• the needle hub comprising at least one protruding member;
• wherein the carrier body has a forward position and a retracted position,
• wherein in the carrier body's retracted position, the infusion part is configured to be away from a patient's skin and the needle hub's at least one protruding member is configured to maintain contact with the carrier body's at least one inclined surface,
• wherein in the carrier body's forward position, the infusion part is configured to contact the patient's skin an adhesive on the patient's skin and the needle hub's at least one protruding member is configured to release contact with the carrier body's at least one inclined surface;
• a first moving unit biasing the carrier body to the forward position when the carrier body is in the retracted position;
• and
• a second moving unit positioned between the carrier body and at least part of the needle hub, the second moving unit biasing the needle hub away from the carrier body when the carrier body is in the forward position, wherein after insertion of the insertion needle and the cannula, the insertion needle is configured to retract from the patient's skin and at least a portion of the insertion needle is positioned inside the housing, and wherein the first moving unit and the second moving unit are at least partly parallel to each other and the second moving unit does not extend beyond first and second ends of the first moving unit in all positions of the needle hub.

An inserter for an infusion set comprising

• a housing comprising an internal surface;
• a carrier body connected to an infusion part, the infusion part adjoined to a cannula and configured to be releasable from the carrier body;
• an insertion needle secured to a needle hub;
• wherein the carrier body has a forward position and a retracted position;
• wherein the infusion part is configured to contact a patient's skin or an adhesive on the patient's skin in the forward position, and is configured to be away from the patient's skin in the retracted position;
• a first moving unit between the carrier body and the housing, the first moving unit biasing the carrier body to the forward position when the carrier body is in the retracted position;
• and
• a second moving unit between the carrier body and at least part of the needle hub when the carrier body is in the retracted position, the second moving unit configured to bias the needle hub and the insertion needle away from the patient's skin after insertion of the insertion needle and the cannula,
• wherein the housing's internal surface is located at least partly within the first moving unit and configured to maintain the carrier body in the retracted position,
• wherein after insertion of the insertion needle and the cannula, the second moving unit is configured to retract the insertion needle from the patient's skin and at least a portion of the insertion needle is positioned inside the housing, and wherein the first moving unit and the second moving unit are placed at least partly parallel to each other and the second moving unit does not extend beyond first and second ends of the first moving unit in all positions of the needle hub.

An inserter for an infusion set comprising:

• a housing comprising an internal member,
• a needle hub comprising at least one rotating member,
• a carrier body comprising at least one protruding member, the carrier body carrying an infusion part, the infusion part releasably connected to the needle hub, the needle hub releasably connected to the carrier body,
• two biased spring units;
• means for activating the two biased spring units,
• wherein when activated, a first of the two biased spring units is capable of moving the carrier body, needle hub and infusion part from a retracted position to a forward position until a proximal surface of the infusion part contacts a patient's skin or an adhesive on the patient's skin, and a second of the two biased spring units is capable of moving the needle hub from a forward position to a retracted position away from the carrier body,
• wherein when the carrier body is in the retracted position, the housing's internal member is configured to maintain the needle hub's at least one rotating member in contact with the carrier body's at least one protruding member, and
• wherein when the carrier body is in the forward position, the housing's internal member is configured to release the needle hub's at least one rotating member from contact with the carrier body's at least one protruding member such that the needle hub's at least one rotating member rotates about the needle hub.