Injection device for infusion set
View Patent ↗The invention relates to an injector device for an infusion set for intermittent or continuous administration of a therapeutical substance, such as insulin. The injector device for the subcutaneous introduction of the cannula of an infusion part into the skin of a patient comprises a housing, a back, longitudinally extending guiding means, a member which is longitudinally slidable within the housing, an insertion needle for insertion of the cannula, a spring located between the back of the housing and the longitudinally slidable member, locking means for maintaining the spring in a compressed state and release means for disengaging the locking means. The device further comprises a pivoting member which can be swung from a position in which the pivoting member allows for insertion of the needle into a position in which it embraces the needle.
1. An injector device for the subcutaneous introduction of a cannula of an infusion part into the skin of a patient, said device comprising:
a housing including a back and longitudinally extending guiding means;
a slidable member longitudinally slidable within the housing;
an insertion needle unreleasably fastened to and moving together with the slidable member;
a spring located between the back of the housing and the longitudinally slidable member;
first locking means for maintaining the spring in a compressed state;
release means for disengaging the locking means; and
a pivoting member fastened to and moving together with the slidable member, the pivoting member being pivotable from a position in which the pivoting member allows for insertion of the needle into a position in which the pivoting member embraces the needle; wherein the pivoting member can embrace the needle when the slidable member is in a forward position and the spring is in a released state.
2. An injector device according to claim 1 , wherein the pivoting member is placed approximately parallel to the housing when the pivoting member is in the position for embracing the needle.
3. An injector device according to claim 1 , wherein the pivoting member is oriented at a second angle with respect to the housing of between about 0° and about 180° when the pivoting member is in the position for embracing the needle.
4. An injector device according to claim 1 , wherein the slidable member comprises a lattice structure.
5. An injector device according to claim 1 , wherein the release means comprises two positions placed on opposite sides of the housing.
6. The injector device of claim 1 , wherein the pivoting member can embrace the needle when the slidable member is in a retracted position and the spring is in a tightened state.
7. An injector device for inserting a portion of a cannula of a medical device into the skin of a patient, the device comprising:
a housing having a first end extending between a pair of arms;
a slidable member at least partially received in the housing and being longitudinally slidable within the housing;
an insertion member unreleasably connected to the slidable member, the insertion member being adapted for insertion of the cannula into the skin of the patient; and
a pivoting member operably connected to the slidable member, the pivoting member being pivotable from an insertion position wherein the insertion member is insertable into the skin of the patient and a covering position wherein the insertion member is at least partially covered by the pivoting member; wherein the pivoting member can embrace the needle when the slidable member is in a forward position and the spring is in a released state.
8. The injection device of claim 7 , further comprising a biasing member for biasing the slidable member with respect to the housing.
9. The injection device of claim 8 , further comprising a first locking member for releasably maintaining the biasing member in a compressed state.