Kenneth M Fine

US Patent:

6764472, Jul 20, 2004

Filed:

Jan 11, 2000

Appl. No.:

09/481298

Inventors:

Paul F. Burke - Bellingham MA
Kenneth A. Fine - Sharon MA

Assignee:

Bard Access Systems, Inc. - Salt Lake City UT

International Classification:

A61M 3100

US Classification:

60428804

Abstract:

An implantable infusion device includes a lightweight, inert housing which contains an infusate for administration to a patient, and an enclosed, gas-impermeable variable volume chamber which contains a pressure source, such as propellant, mechanical spring, or the like. The variable volume chamber may be in the form of a rigid-walled expandable bellows structure or a nonstretchable flexible bag and is attached to the housing so as not to obstruct the entry port for introduction of infusate. The infusate is delivered from the device via a catheter in response to expansion of the variable volume chamber against the volume of infusate in the housing. A separate bolus injection port is provided which allows infusate to be safely introduced directly into the catheter and overrides the controlled pressure-driven delivery. The lightweight housing may include integrally formed needle stops and suture fastening loops.

US Patent:

7108686, Sep 19, 2006

Filed:

Jan 11, 2001

Appl. No.:

10/169821

Inventors:

Paul Burke - Bellingham MA, US
Kenneth A. Fine - Sharon MA, US

Assignee:

Bard Access Systems, Inc. - Salt Lake City UT

International Classification:

A61K 9/22
A61M 37/00
A61M 31/00

US Classification:

6048911, 604131, 604140, 604145, 60428802

Abstract:

An implantable infusion device () includes a lightweight, inert housing () which contains an infusate () for administration to a patient, and an enclosed, gas-impermeable variable volume chamber () which contains a pressure source, such as propellant, mechanical spring, or the like. The variable volume chamber may be in the form of a rigid-walled expandable bellows structure or a nonstretchable flexible bag and is attached to the housing so as not to obstruct the entry port for introduction of infusate. A recharging fluid flow path () is provided adjacent to where the variable volume chamber is attached to the housing. The infusate is delivered from the device via a catheter in response to expansion of the variable volume chamber against the volume of infusate in the housing. A separate bolus injection port () is provided which allows infusate to be safely introduced directly into the catheter and overrides the controlled pressure-driven delivery. The lightweight housing may include integrally formed needle stops ( and ) and suture fastening loops ().

US Patent:

20040249363, Dec 9, 2004

Filed:

Jun 17, 2004

Appl. No.:

10/869978

Inventors:

Paul Burke - Bellingam MA, US
Kenneth Fine - Sharon MA, US

Assignee:

Bard Access Systems, Inc. - Salt Lake City UT

International Classification:

A61K009/22

US Classification:

604/890100

Abstract:

An implantable infusion device includes a lightweight, inert housing which contains an infusate for administration to a patient, and an enclosed, gas-impermeable variable volume chamber which contains a pressure source, such as propellant, mechanical spring, or the like. The variable volume chamber may be in the form of a rigid-walled expandable bellows structure or a nonstretchable flexible bag and is attached to the housing so as not to obstruct the entry port for introduction of infusate. The infusate is delivered from the device via a catheter in response to expansion of the variable volume chamber against the volume of infusate in the housing. A separate bolus injection port is provided which allows infusate to be safely introduced directly into the catheter and overrides the controlled pressure-driven delivery. The lightweight housing may include integrally formed needle stops and suture fastening loops.