Internal fluid connector

• US 20070021733A1
• Filed: 04/20/2006
• Published: 01/25/2007
• Est. Priority Date: 10/21/2003
• Status: Abandoned Application

• Current Assignee: Novo Nordisk A/S
• Original Assignee: Novo Nordisk A/S
• Inventors: Hansen, Steffen, Radmer, Jim, Preuthun, Jan, Moller, Claus, Nielsen, Ole, Larsen, Bjorn, Ethelfeld, Erik, Sparholt, Philip
• Application Number:
  US11/407,647
• Publication Number:
  US 20070021733A1
• Time in Patent Office: Days
• US Class Current: 604/890.100
• CPC Class Codes: A61M 2005/14252 with needle insertion means
• CPC Class Codes: A61M 2005/14268 with a reusable and a disposable component
• CPC Class Codes: A61M 2005/14506 mechanically driven, e.g. spring or clockwork
• CPC Class Codes: A61M 2005/14513 with secondary fluid driving or regulating the infusion
• CPC Class Codes: A61M 2005/1585 Needle inserters
• CPC Class Codes: A61M 5/14216 Reciprocating piston type
• CPC Class Codes: A61M 5/14224 Diaphragm type
• CPC Class Codes: A61M 5/14248 of the skin patch type
• CPC Class Codes: A61M 5/14526 the piston being actuated by fluid pressure
• CPC Class Codes: A61M 5/1486 the bags being substantially completely surrounded by fluid

Abstract

A medical device is provided comprising a reservoir adapted to contain a fluid drug in an interior thereof, and a pump assembly. The pump assembly comprises a pump inlet, a pump outlet and an internal flow path arranged there between, and a fluid connector having an inlet and an outlet. The fluid connector is arranged to be operated from an initial state in which the fluid connector is arranged within the interior of the pump and an actuated state in which fluid communication is established between the interior of the reservoir and the interior of the pump assembly via the fluid connector and with the outlet of the fluid connector being arranged in the flow path of the pump assembly.

Claims

1. A medical device, comprising:

a reservoir (760) adapted to contain a fluid drug in an interior thereof,

a pump assembly (300) comprising;

a pump inlet (321), a pump outlet (322) and an internal flow path (341, 342, 343) arranged there between,

a fluid connector (350) comprising an inlet (351) and an outlet (353),

wherein the fluid connector is arranged to be operated from an initial state in which the fluid connector is arranged within the interior of the pump and an actuated state in which fluid communication is established between the interior of the reservoir and the interior of the pump assembly via the fluid connector and with the outlet of the fluid connector being arranged in the flow path of the pump assembly.

2. A medical device as in claim 1, wherein the pump inlet and the pump outlet comprise seals which in the initial state seal the interior of the pump and thereby the flow path and the fluid connector in an initial sterile state.

3. A medical device as in claim 1, comprising an actuation opening allowing an external member to engage the fluid connector to thereby operate the fluid connector from the initial to the actuated state,

4. A medical device as in claim 3, wherein the pump inlet, the pump outlet and the actuation opening comprise seals which in the initial state seal the interior of the pump and thereby the flow path and the fluid connector in an initial sterile state.

5. A medical device as in claim 1, wherein the fluid connector comprises pointed inlet end, the reservoir comprising a penetratable portion (761) allowing the pointed fluid connector inlet end to be inserted there through.

6. A medical device as in claim 5, wherein the penetratable portion of the reservoir comprises a self-sealing needle-penetratable septum.

7. A medical device as in claim 1, wherein the flow path comprising a variable volume pump chamber.

8. A medical device as in claim 7, the flow path further comprising an inlet valve associated with the pump inlet and an outlet valve associated with the pump outlet.

9. A medical device as in claim 1, wherein the pump outlet comprises a self-sealing needle-penetratable septum allowing a pointed transcutaneous device to be inserted there through.

10. A medical device as in claim 1, further comprising an actuator for actuating the pump assembly.

11. A medical device as in claim 1, further comprising a transcutaneous device (530) comprising a pointed end adapted to penetrate the skin of a subject, the transcutaneous device being arranged or adapted to be arranged in fluid communication with the pump outlet.

12. A medical assembly comprising a medical device as in any of claims 1-10, further comprising a transcutaneous device unit (502) comprising:

a transcutaneous device (530) comprising a pointed end adapted to penetrate the skin of a subject,

a mounting surface (571) adapted for application to the skin of a subject,

wherein the transcutaneous device unit and the medical device are adapted to be secured to each other in a situation of use, and

wherein the transcutaneous device is adapted to be arranged in fluid communication with the pump outlet.

13. A medical assembly as in claim 12, wherein fluid communication between the transcutaneous device and the pump assembly is established when the transcutaneous device unit and the medical device are secured to each other.

14. A medical assembly as in claim 11, wherein the fluid connector is operated from the initial to the actuated state when the transcutaneous device unit and the medical device are secured to each other.