INFUSION DEVICE AND METHOD OF USING AND MAKING THE SAME

• US 20090069750A1
• Filed: 09/07/2007
• Published: 03/12/2009
• Est. Priority Date: 09/07/2007
• Status: Active Grant

• Current Assignee: Stat Medical Devices Incorporated
• Original Assignee: Stat Medical Devices Incorporated
• Inventors: SCHRAGA, Steven
• Granted Patent: US 8,303,545 B2
• Time in Patent Office: Days
• US Class Current: 604/167.20
• CPC Class Codes: A61M 2005/1583 Needle extractors
• CPC Class Codes: A61M 2005/1585 Needle inserters
• CPC Class Codes: A61M 5/14248 of the skin patch type
• CPC Class Codes: A61M 5/152 pressurised by contraction of elastic reservoirs containers for dispensing contents by contraction of an elastic bag provided therein, in general B65D83/0061
• CPC Class Codes: A61M 5/158 Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
• CPC Class Codes: A61M 5/16827 controlling delivery of multiple fluids, e.g. sequencing, mixing or via separate flow-paths infusion of multiple fluids without using a controller A61M5/1407
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

Fluid delivery device includes a body, a cannula adapted to extend into subcutaneous tissue, and a septum member adapted to allow a needle to puncture the septum member and to reseal the puncture once the needle is withdrawn from the puncture. The septum member is at least one of; a cap-shaped member, a member having at least two non-parallel walls that can each be punctured by a needle, and a member having a generally planar wall and a generally cylindrical wall which can each be punctured by a needle.

Claims

1. A fluid delivery device comprising:

a body;

at least one cannula adapted to extend into subcutaneous tissue; and

a septum member adapted to allow a needle to puncture the septum member and to reseal the puncture once the needle is withdrawn from the puncture,

wherein the septum member comprises at least one of;

a cap-shaped member;

a member having at least two non-parallel walls that can each be punctured by a needle; and

a member having a generally planar wall and a generally cylindrical wall which can each be punctured by a needle.

2. The device of claim 1, wherein the body comprises an adhesive layer structured and arranged to at least temporarily secure the device to a user'"'"'s skin.

3. The device of claim 1, further comprising a removable needle insertion mechanism having a portion which extends through the cannula and another portion which can be gripped by a user.

4. The device of claim 1, further comprising a support member comprising a first opening arranged over a one portion of the septum member and at least one second opening arranged over a different portion of the septum member.

5. The device of claim 4, wherein at least one of:

the first opening comprises an axial opening and the at least one second opening comprises a generally circumferential opening or slot;

the first opening comprises an axial opening and the at least one second opening comprises a opening whose center axis is oriented at an angle between an axis of the first opening and a radial plane perpendicular to the axis of the first opening; and

the first opening comprises an axial opening and the at least one second opening comprises at least two equally angularly spaced openings.

6. The device of claim 1, wherein the cannula comprises a center axis that is oriented at an angle between a vertical center axis of the body and a radial plane perpendicular to the vertical center axis of the body.

7. The device of claim 1, wherein the cannula is oriented at an angle that is not perpendicular to a bottom surface of the body.

8. The device of claim 1, further comprising a needle insertion mechanism configured to cause movement of the cannula from a first position to a second position.

9. The device of claim 1, wherein the cannula is movable from an initial retracted position to a puncturing position.

10. The device of claim 1, wherein the cannula is movable from an initial retracted position within the body to an extended position wherein a puncturing portion of the cannula is arranged outside the body.

11. The device of claim 1, further comprising a removable safety device structured and arranged to prevent movement of the cannula from a first position to a second position.

12. The device of claim 1, further comprising a manually activated needle insertion mechanism configured to cause movement of the cannula from a first position to a second position.

13. The device of claim 1, further comprising a trigger activated needle insertion mechanism configured to cause movement of the cannula from a first position to a second position.

14. The device of claim 1, further comprising a needle insertion mechanism configured to automatically cause movement of the cannula from a first position to a second position.

15. The device of claim 1, further comprising at least one of:

a needle insertion mechanism comprising a biasing mechanism for causing movement of the cannula from a first position to a second position; and

an arrangement for adjusting a cannula penetrating depth.

16. The device of claim 1, wherein the device is adapted to function with a removable needle insertion mechanism and a tool comprising a biasing mechanism for causing movement of the cannula from a first position to a second position.

17. The device of claim 1, wherein the device is adapted to function with a removable needle insertion mechanism and a trigger activated tool comprising a biasing mechanism and a movable member for causing movement of the cannula from a first position to a second position.

18. The device of claim 1, further comprising at least one of:

a system for causing movement of the cannula from a first position to a second position; and

a system for causing movement of the cannula from an extended position to a retracted position.

19. The device of claim 1, wherein the device is a single-use device.

20. The device of claim 1, further comprising a removable cannula insertion mechanism adapted to move the cannula to a puncturing position.

21. The device of claim 1, further comprising at least one of:

an adjustable septum support member adapted to move the septum between at least two angular positions; and

a swivel mounted septum support member adapted to move the septum between at least two angular positions.

24. A method of making the fluid delivery device of claim 1, the method comprising:

mounting a cannula and a septum to a body.

25. A method of using the fluid delivery device of claim 1, the method comprising:

attaching the device to a user'"'"'s skin; and

inserting a portion of the cannula into the subcutaneous tissue.

22. A fluid delivery device comprising:

a body;

at least one cannula adapted to extend into subcutaneous tissue;

an insertion mechanism adapted to be gripped by a user and adapted to facilitate insertion of the cannula into the subcutaneous tissue;

a septum member adapted to allow a needle to puncture the septum member and to reseal the puncture once the needle is withdrawn from the puncture,

wherein the septum member comprises at least one of;

a cap-shaped member;

a member having at least two non-parallel walls that can each be punctured by a needle; and

a member having a generally planar wall and a generally cylindrical wall which can each be punctured by a needle.

23. A fluid delivery device comprising:

a body;

at least one cannula adapted to extend into subcutaneous tissue;

an insertion mechanism adapted to be gripped by a user and comprising a needle portion adapted to facilitate insertion of the cannula into the subcutaneous tissue;

a septum member adapted to allow a needle to puncture the septum member and to reseal the puncture once the needle is withdrawn from the puncture,

wherein the septum member comprises at least one of;

a cap-shaped member;

a member having at least two non-parallel walls that can each be punctured by a needle; and

a member having a generally planar wall and a generally cylindrical wall which can each be punctured by a needle.