Injection device for infusion set

• US 8,221,355 B2
• Filed: 03/21/2005
• Issued: 07/17/2012
• Est. Priority Date: 03/26/2004
• Status: Active Grant

• Current Assignee: Unomedical A/S
• Original Assignee: Unomedical A/S
• Inventors: Kornerup, Grete, Mogensen, Lasse W., Göransson, Magnus W.
• Primary Examiner(s): VU, QUYNH-NHU HOANG
• Application Number:
  US10/594,043
• Publication Number:
  US 20080039794A1
• Time in Patent Office: 2,675 Days
• Field of Search: 604/19, 604/21, 604/48, 604/502, 604/506, 604/93.01, 604/164.01, 604/164.04, 604/164.07, 60416411-16412, 604/165.01, 604/165.03, 604/170.01, 604/170.02, 604174-175, 604/179, 604/181, 604200-201, 604/264, 604/272, 604/890.1, 604/539, 604/70.01, 604/136, 600/564, 600566-567
• US Class Current: 604/136
• CPC Class Codes: A61M 2005/1585 Needle inserters
• CPC Class Codes: A61M 2005/1587 suitable for being connected to an infusion line after insertion into a patient
• CPC Class Codes: A61M 37/00 Other apparatus for introducing media into the body for reproduction or fertilisation A61B17/425; apparatus for iontophoresis or cataphoresis A61N1/30; Percutany, i.e. introducing medicines into the body by diffusion through the skin salt baths A61H33/04
• CPC Class Codes: A61M 5/158 Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body

Abstract

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.

Claims

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.