Pivoting joint infusion system with steal

• US 7,862,545 B2
• Filed: 06/22/2006
• Issued: 01/04/2011
• Est. Priority Date: 01/05/2001
• Status: Active Grant

• Current Assignee: ViCentra B.V.
• Original Assignee: Applied Diabetes Research, Inc.
• Inventors: Lynch, George R., Petitjean, Gilles, Brandenburg, Allen E., Nelson, Andrew
• Primary Examiner(s): RAMANA, ANURADHA
• Application Number:
  US11/473,254
• Publication Number:
  US 20060241551A1
• Time in Patent Office: 1,657 Days
• Field of Search: 604/93.01, 604/164.01, 604/164.04, 604/164.07, 604/165.01, 604/165.03, 604/174, 604/178, 604/179, 604/180, 604/264
• US Class Current: 604/174
• CPC Class Codes: A61M 2005/14252 with needle insertion means
• CPC Class Codes: A61M 2005/1581 Right-angle needle-type devices
• CPC Class Codes: A61M 2005/1587 suitable for being connected to an infusion line after insertion into a patient
• CPC Class Codes: A61M 39/02 Access sites
• CPC Class Codes: A61M 5/14244 adapted to be carried by the patient, e.g. portable on the body
• CPC Class Codes: A61M 5/14248 of the skin patch type
• 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: B01D 2239/0208 Single-component fibres
• CPC Class Codes: B01D 2239/0216 Bicomponent or multicomponent fibres
• CPC Class Codes: B01D 2239/0225 Side-by-side
• CPC Class Codes: B01D 2239/0233 Island-in-sea
• CPC Class Codes: B01D 2239/0414 Surface modifiers, e.g. comprising ion exchange groups
• CPC Class Codes: B01D 2239/045 Deodorising additives
• CPC Class Codes: B01D 2239/0471 Surface coating material
• CPC Class Codes: B01D 2239/0636 Two or more types of fibres present in the filter material
• CPC Class Codes: B01D 2239/0659 The layers being joined by needling
• CPC Class Codes: B01D 2239/0663 The layers being joined by hydro-entangling
• CPC Class Codes: B01D 39/163 sintered or bonded

Abstract

An infusion system for delivery of therapeutic fluids from a remote source into a patient'"'"'s body. The system has an infusion assembly, a rotating pivot joint member, a fluid connector assembly, and a sealing assembly retained within the infusion assembly between the housing of the infusion assembly and the rotating pivot joint member. The seal reduces leakage of fluids. The rotating joint may be pivoted to three distinct positions to allow for emplacement on the patient, delivery of the therapeutic fluid to the patient, and protected, sealed closure of the fluid channels to avoid patient fluid backflow.

Claims

1. An infusion system for delivery of a therapeutic fluid from a remote source into a patient'"'"'s body comprising;

a main infusion unit having a housing, a cannula with an injection channel, said cannula attached at an underside of said main infusion unit, a first fluid channel in communication with said cannula, and a rotating joint member receiving chamber;

a rotating joint member having a central fluid channel, a needle emplacement channel, and a fluid infusion channel, all of said channels intersecting within a central portion of said rotating joint member, said rotating joint member adapted to be received within and rotatable within said chamber and;

a fluid connector assembly having a fluid delivery channel, said fluid connector assembly attachable at an end of said rotating joint member such that said fluid delivery channel aligns with and is in communication with said central fluid channel of said rotating joint member, said fluid connector assembly attachable at a remote end to a delivery tube attached to said remote source of said therapeutic fluid;

wherein said rotating joint member rotatable from a first emplacement position

whereby an emplacement needle may be extended through said needle emplacement channel of said rotating joint member and through said injection channel of said cannula to subcutaneously pierce said patient

to a second delivery position after said emplacement needle has been withdrawn from said patient and said fluid connector assembly has been attached at said near end of said rotating joint member, said second delivery position aligning said fluid infusion channel with said injection channel of said cannula to deliver said therapeutic fluid to said patient.

2. The infusion system of claim 1, wherein the main infusion unit further comprises a recess in said housing to receive and retain said rotating joint member when said rotating joint member is rotated to a third position, the third position for preventing flow of therapeutic fluid to the patient'"'"'s body.

3. The infusion system of claim 2, wherein the main infusion unit further includes a cover adapted to protect an opening to said central fluid channel in said rotating joint member when said rotating joint member is rotated to the third position.

4. The infusion system of claim 1, wherein said rotating joint member upon removal of said fluid connector assembly is rotatable to a third position, said third position misaligning said fluid infusion channel with said first fluid channel of said main infusion unit to substantially prevent delivery of said therapeutic fluid to said patient.

5. The infusion system of claim 4, wherein the central portion of said rotating joint member is a ball joint.

6. The infusion system of claim 5, wherein said rotating joint member includes ears attached to the ball joint.

7. The infusion system of claim 1, further including fluid sealing member cooperating with said fluid connector assembly and said rotating joint member to provide a fluid tight seal when the fluid connector assembly is engaged with the rotating joint member.

8. The infusion system of claim 1, further including means to releasably lock said fluid connector assembly to said rotating joint member when said fluid connector assembly is in said second delivery position.

9. The infusion system of claim 1, wherein the main infusion unit has walls defining a cutout and the fluid connector assembly has walls dimensioned for receipt into the cutout when the fluid connector assembly is in the second delivery position.

10. The infusion system of claim 1, wherein the main infusion unit, rotating joint member, and fluid connector assembly are all septumless.