Insertion device for infusion sets

• US 7,909,791 B2
• Filed: 12/09/2005
• Issued: 03/22/2011
• Est. Priority Date: 06/12/2003
• Status: Active Grant

• Current Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Original Assignee: Roche Diagnostics Operations Incorporated (Roche Holding AG)
• Inventors: Roethlisberger, Mark, Liniger, Jürg, Scheurer, Simon
• Primary Examiner(s): Mendez; Manuel A
• Application Number:
  US11/298,986
• Publication Number:
  US 20060135908A1
• Time in Patent Office: 1,929 Days
• Field of Search: 60416401-16409, 604/9, 604131-137
• US Class Current: 604/9
• CPC Class Codes: A61M 2005/1581 Right-angle needle-type devices
• CPC Class Codes: A61M 2005/1585 Needle inserters
• 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

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.

Claims

1. An insertion device for infusion sets, comprising a housing for generally enclosing an infusion set to be placed in the insertion device and a drive device for moving the infusion set in a drive direction, wherein the drive device is configured such that a drive movement of the drive device takes place free of slide friction relative to the housing, wherein the drive device comprises a drive mechanism connected to the housing, at least one elastic means for providing at least a portion of a driving force, and a drive endpiece to move an infusion set in a drive direction, the drive endpiece being able to be pretensioned relative to the housing by the elastic means such that the drive endpiece is moved in the drive direction when the pretensioning is released.

2. The insertion device as claimed in claim 1, wherein the drive device comprises a lever mechanism via which the drive endpiece is moved relative to the housing.

3. The insertion device as claimed in claim 2, wherein one or more parts of the lever mechanism move in the drive direction and the lever mechanism is configured such that the parts of the lever mechanism which move in the drive direction are spaced from the housing or do not execute any sliding movement relative to the housing.

4. The insertion device as claimed in claim 2, wherein the lever mechanism comprises leg levers connected in a rotatable manner via rotary connection members, at least some of the rotary connection members being movable in the drive direction.

5. The insertion device as claimed in claim 4, wherein the rotary connections members comprise at least two first oppositely turning rotary connection members movable in the drive direction, their drive movement synchronized by the coupled rotational movement of two second positionally fixed rotary connection members, one of the first rotary connection members in each case being connected to one of the second rotary connection members via a leg lever.

6. The insertion device as claimed in claim 1, wherein the drive endpiece is adapted to receive the infusion set.

7. The insertion device as claimed in claim 1, wherein the housing has an infusion set holder adapted to receive an infusion set, the holder arranged such that the drive endpiece, when moved in the drive direction, strikes an infusion set out of the holder, and the drive device is designed such that, in the pretensioned state, there is no contact between an infusion set in the holder and drive endpiece.

8. The insertion device according to claim 1, wherein the drive device is further configured such that a drive movement of the infusion set takes place free of slide friction relative to the housing.

9. An insertion device for introducing an infusion set, comprising

a housing for receiving the infusion set;

and

a drive device for moving the infusion set in a drive direction, the drive device comprising;

a drive mechanism connected to the housing, the drive mechanism comprising at least one rotary connection member on a side wall of the housing and at least one leg lever connected by a first end to the at least one rotary connection member,;

at least one elastic member for providing at least a portion of a driving force, the leg lever being pretensionable relative to the side wall by one or more of the at least one elastic member; and

a drive endpiece to move the infusion set in the drive direction, the drive endpiece being pretensionable relative to the housing by the elastic member such that the drive endpiece is moved in the drive direction when the pretensioning is released, the drive endpiece comprising a second end of the leg lever, the leg lever pivotally moveable via the at least one rotary connection member when the tension of the elastic member is released by a release mechanism.

11. The insertion device according to claim 9, wherein the drive device is configured such that movement of the drive device in the drive direction takes place free of slide friction relative to the housing.

12. The insertion device according to claim 11, wherein the drive device is further configured such that movement of the infusion set in the drive direction takes place free of slide friction relative to the housing.

10. The insertion device according to claim, wherein the second end of the leg lever is adapted to receive the infusion set or to strike the infusion set out of a holding fixture.

13. An insertion device for infusion sets, comprising

a housing for generally enclosing an infusion set to be placed in the insertion device and

a drive device for moving the infusion set in a drive direction,

wherein the drive device is configured such that a drive movement of the drive device takes place free of slide friction relative to the housing,

wherein the drive device comprises a lever mechanism via which the drive endpiece is moved relative to the housing,

wherein the lever mechanism comprises leg levers connected in a rotatable manner via rotary connection members, at least some of the rotary connection members being movable in the drive direction, and

wherein the rotary connections members comprise at least two first oppositely turning rotary connection members movable in the drive direction, their drive movement synchronized by the coupled rotational movement of two second positionally fixed rotary connection members, one of the first rotary connection members in each case being connected to one of the second rotary connection members via a leg lever.

14. An insertion device for infusion sets, comprising a housing for generally enclosing an infusion set to be placed in the insertion device and

a drive device for moving the infusion set in a drive direction,

wherein the drive device is configured such that a drive movement of the drive device takes place free of slide friction relative to the housing,

wherein the drive device comprises a drive mechanism connected to the housing, at least one elastic means for providing at least a portion of a driving force, and a drive endpiece to move an infusion set in a drive direction, the drive endpiece being able to be pretensioned relative to the housing by the elastic means such that the drive endpiece is moved in the drive direction when the pretensioning is released, and

wherein the drive endpiece is adapted to receive the infusion set.

15. An insertion device for infusion sets, comprising

a housing for generally enclosing an infusion set to be placed in the insertion device and

a drive device for moving the infusion set in a drive direction,

wherein the drive device is configured such that a drive movement of the drive device takes place free of slide friction relative to the housing,

wherein the drive device comprises a drive mechanism connected to the housing, at least one elastic means for providing at least a portion of a driving force, and a drive endpiece to move an infusion set in a drive direction, the drive endpiece being able to be pretensioned relative to the housing by the elastic means such that the drive endpiece is moved in the drive direction when the pretensioning is released, and

wherein the housing has an infusion set holder adapted to receive an infusion set, the holder arranged such that the drive endpiece, when moved in the drive direction, strikes an infusion set out of the holder, and the drive device is designed such that, in the pretensioned state, there is no contact between an infusion set in the holder and drive endpiece.