Reservoir connector

• US 7,658,734 B2
• Filed: 12/23/2002
• Issued: 02/09/2010
• Est. Priority Date: 10/29/1998
• Status: Expired due to Term

• Current Assignee: Medtronic Minimed Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Minimed Incorporated (Medtronic Plc)
• Inventors: Moberg, Sheldon, Srisathapat, Chalirmkiert, Adair, Randy W.
• Primary Examiner(s): Lucchesi; Nicholas D
• Assistant Examiner(s): KOHARSKI, CHRISTOPHER
• Application Number:
  US10/328,393
• Publication Number:
  US 20030125672A1
• Time in Patent Office: 2,605 Days
• Field of Search: 604/183, 604/181, 604/533, 604/523, 604/535, 604/905, 604/240, 604/241
• US Class Current: 604/523
• CPC Class Codes: A61M 2005/1623 Details of air intake
• CPC Class Codes: A61M 2039/1033 Swivel nut connectors, e.g. threaded connectors, bayonet-connectors
• CPC Class Codes: A61M 2039/1072 with a septum present in the connector
• CPC Class Codes: A61M 2039/205 comprising air venting means
• CPC Class Codes: A61M 2205/581 by audible feedback
• CPC Class Codes: A61M 2205/582 by tactile feedback
• CPC Class Codes: A61M 39/10 Tube connectors; Tube couplings A61M39/02 takes precedence; connecting needles to syringes or hubs A61M5/34; connecting catheter tubes to hubs A61M25/0014
• CPC Class Codes: A61M 39/12 for joining a flexible tube to a rigid attachment
• CPC Class Codes: A61M 5/14244 adapted to be carried by the patient, e.g. portable on the body
• CPC Class Codes: A61M 5/1452 pressurised by means of pistons
• CPC Class Codes: A61M 5/14566 with a replaceable reservoir for receiving a piston rod of the pump
• CPC Class Codes: A61M 5/162 Needle sets, i.e. connections by puncture between reservoir and tube ; Connections between reservoir and tube in jet-action syringes A61M5/30; connectors for tubes having sealed ends and a needle for piercing them A61M39/14
• CPC Class Codes: A61M 5/16831 Monitoring, detecting, signalling or eliminating infusion flow anomalies low-level float-valves causing cut-off A61M5/40; indicating or recording presence, absence or direction of flow in general G01P13/0066
• CPC Class Codes: Y10T 29/49764 with testing or indicating
• CPC Class Codes: Y10T 29/49826 Assembling or joining
• CPC Class Codes: Y10T 29/53 Means to assemble or disassemble

Abstract

A method and apparatus for a connection interface between a reservoir or syringe, infusion set tubing, and an infusion pump is provided. A base is provided which is adapted to receive a reservoir. The base has a base engagement member, such as a detent, projecting therefrom. A cap is provided which is adapted to receive the base. The cap includes a first cap engagement member, such as a detent opening, which is adapted to removably engage the base detent. The cap further includes a second cap detent opening which is adapted to removably engage the base detent. A piercing member, such as a needle, is disposed in the interior of the cap in such a manner that the needle is separated from the reservoir septum when the base detent is in the first cap detent opening, and the needle pierces the reservoir septum when the base detent is in the second cap detent opening. When the reservoir, the base and the cap are connected to form an integrated unit, this unit is then capable of being inserted and secured in the infusion pump housing.

Claims

1. An apparatus for connecting a syringe comprising a fluid medication reservoir to a medication pump housing having a first thread member, the apparatus comprising:

an adapter having a circumference and a substantially cylindrical shape for connecting the syringe to the medication pump housing;

a first tab disposed on the adapter so as to provide a first surface for a user to grip and twist the adapter to engage the adapter with the medication pump housing upon rotation of the adapter, wherein the first tab projects outward from the adapter such that the first surface of the first tab is disposed in an orientation perpendicular to a plane defined by the circumference of the adapter;

an interface disposed on the adapter, the interface adapted to connect to infusion set tubing, wherein the interface is formed about an axis around which the adapter rotates as the user grips and twists the first surface of the first tab, the axis being perpendicular to the plane defined by the circumference of the adapter;

a first housing engagement member disposed on the adapter, the first housing engagement member adapted to engage the medication pump housing and

a second housing engagement member disposed on the adapter, the second housing engagement member adapted to engage the medication pump housing;

wherein;

at least one housing engagement member disposed on the adapter comprises a detent;

the first and second housing engagement members are disposed on the adapter so that the fluid medication reservoir is disposed within a recess of the medication pump housing when the adapter is operatively coupled to the medication pump housing; and

the adapter, the tab, the interface and the first and second housing engagement members are formed as a homogenous one piece unit.

2. The apparatus of claim 1, wherein the first or the second housing engagement member is adapted to engage the first thread member on the medication pump housing.

3. The apparatus of claim 2, wherein the first or the second housing engagement member comprises a second thread member.

4. The apparatus of claim 1, further comprising a shoulder disposed on the adapter to sealingly engage the pump housing.

5. The apparatus of claim 1, further comprising a sealing member disposed in the adapter to sealingly engage the syringe.

6. The apparatus of claim 1, wherein the adapter is adapted to axially receive the syringe through the center of the adapter.

7. The apparatus of claim 1, wherein the adapter is integrated on the syringe.

8. The apparatus of claim 1, wherein the adapter comprises a luer fitting.

9. The apparatus of claim 1, wherein the adapter allows the syringe to be mounted and sealed in the medication pump housing.

10. The apparatus of claim 1, wherein the first or the second engagement member is adapted to engage the interior of the pump housing.

11. The apparatus of claim 1 further comprising a vent port disposed on the adapter for venting the pump housing to the atmosphere without permitting liquid to pass through the vent port.

12. The apparatus of claim 1, wherein engaging the syringe results in tactile or visual feedback to the user when the apparatus is engaged with the medication pump housing.

13. The apparatus of claim 1, wherein the interface comprises a luer fitting.

14. The apparatus of claim 1, further comprising infusion set tubing adapted to connect to the interface.

15. The apparatus of claim 1, further comprising a second tab disposed on the adapter so as to provide a second surface for the user to grip and twist the adapter to engage the adapter with the medication pump housing upon rotation of the adapter, wherein the second tab projects outward from the adapter such that the second surface of the second tab is disposed in an orientation perpendicular to the plane defined by the circumference of the adapter.

16. The apparatus of claim 15, wherein the first and second tabs are disposed on the adapter in a diametrically opposed orientation.

17. An apparatus for connecting a fluid medication reservoir to infusion set tubing;

the apparatus comprising;

the fluid medication reservoir comprising a syringe;

a connector having a circumference disposed on the syringe for connecting the syringe to a medical device;

a first tab disposed on the connector so as to provide a first surface for a user to grip and twist the connector to engage or disengage the connector with a housing recess of the medical device upon rotation of the connector, wherein the first tab projects outward from the connector such that the first surface of the first tab is disposed in an orientation perpendicular to a plane defined by the circumference of the connector;

an interface disposed on the connector for connecting the fluid medication reservoir to the infusion set tubing, wherein the interface is formed about an axis around which the connector rotates as the user grips and twists the first surface of the first tab, the axis being perpendicular to the plane defined by the circumference of the connector;

a first housing engagement member disposed on the exterior of the connector adapted to engage the housing recess of the medical device; and

a second housing engagement member disposed on the exterior of the connector adapted to engage the housing recess of the medical device;

wherein;

at least one housing engagement member disposed on the connector comprises a detent and the syringe is adapted to be releasably secured within the housing recess of the medical device;

the connector at least partially fits inside the housing recess of the medical device;

the first and second housing engagement members are disposed on the connector so that the fluid medication reservoir is disposed within the housing recess of the medical device when the connector is operatively coupled to the medical device; and

the connector, the tab, the interface and the first and second housing engagement members are formed as a homogenous one piece unit.

18. The apparatus of claim 17, wherein the connector comprises a luer fitting.

19. The apparatus of claim 17, wherein the first or the second housing engagement member comprises a first thread member which is adapted to engage a thread member on the housing recess of the medical device.

20. The apparatus of claim 17, wherein the connector is integrated on the syringe.

21. The apparatus of claim 17, further comprising a shoulder disposed on the connector to sealingly engage the housing recess of the medical device.

22. The apparatus of claim 17, wherein engaging the reservoir results in tactile or visual feedback to the user when the apparatus is engaged with the housing recess of the medical device.

23. The apparatus of claim 17, wherein the interface comprises a luer fitting.

24. The apparatus of claim 17, further comprising infusion set tubing adapted to connect to the interface.

25. The apparatus of claim 17, further comprising a second tab disposed on the connector so as to provide a second surface for the user to grip and twist the connector to engage the connector with the housing recess of the medical device upon rotation of the connector, wherein the second tab projects outward from the connector, such that the second surface of the second tab is disposed in an orientation perpendicular to the plane defined by the circumference of the connector.

26. The apparatus of claim 25, wherein the first and second tabs are disposed on the connector in a diametrically opposed orientation.

27. A system for connecting a fluid medication reservoir to infusion set tubing;

the system comprising;

a housing engagement interface having a circumference and a substantially cylindrical shape and adapted to be inserted into a corresponding opening in a medication pump housing;

a luer fitting disposed at a first end of the housing engagement interface, wherein the luer fitting is adapted to connect to infusion set tubing and is formed about an axis around which the housing engagement interface rotates as a user grips and twists the housing engagement interface, the axis being perpendicular to a plane defined by the circumference of the housing engagement interface;

a housing engagement member disposed on the housing engagement interface, wherein the housing engagement member is adapted to engage the medication pump housing;

a first tab disposed at the first end of the housing engagement interface so as to provide a first surface for the user to grip and twist the housing engagement interface to engage the housing engagement member with the medication pump housing upon rotation of the housing engagement interface, wherein the first tab projects outward from the housing engagement interface such that the first surface of the first tab is disposed in an orientation perpendicular to the plane defined by the circumference of the housing engagement interface; and

a cylindrical fluid medication reservoir disposed at a second end of the housing engagement interface, wherein;

the housing engagement member is disposed on the housing engagement interface so that the cylindrical fluid medication reservoir is disposed within the opening of the medication pump housing when the housing engagement interface is operatively engaged with the medication pump housing; and

a fluid medication can flow from the cylindrical fluid medication reservoir through a conduit in the luer fitting and into the infusion set tubing when the infusion set tubing is operatively engaged with the luer fitting.

28. The system of claim 27, wherein the housing engagement interface, the luer fitting and the housing engagement member are formed as a homogenous one piece unit.

29. The system of claim 27, wherein the luer fitting, and the first tab are formed as a homogenous one piece unit.

30. The system of claim 27, wherein the housing engagement member, and the first tab are formed as a homogenous one piece unit.

31. The system of claim 27, wherein the cylindrical fluid medication reservoir and the housing engagement interface are not formed as a homogenous one piece unit.

32. The system of claim 27, further comprising a vent port disposed on the housing engagement interface, wherein the vent port permits the passage of air and inhibits the passage of fluids.

33. The system of claim 32, wherein the vent port comprises a hydrophobic material that permits the passage air and inhibits the passage of fluids.

34. The system of claim 27, wherein the cylindrical fluid medication reservoir comprises a syringe.

35. The system of claim 27, further including an infusion set connected to the infusion set tubing, and wherein the infusion set tubing is connected to the luer fitting.

36. The system of claim 27, further comprising a second tab disposed at the first end of the housing engagement interface so as to provide a second surface for the user to grip and twist the housing engagement interface to engage the housing engagement interface with the medication pump housing upon rotation of the housing engagement interface, wherein the second tab projects outward from the housing engagement interface such that the second surface of the second tab is disposed in an orientation perpendicular to the plane defined by the circumference of the housing engagement interface.

37. The system of claim 36, wherein the first and second tabs are disposed on the housing engagement interface in a diametrically opposed orientation.

38. An apparatus for connecting a fluid medication reservoir to infusion set tubing;

the apparatus comprising;

the fluid medication reservoir comprising a syringe;

a connector having a circumference disposed on the syringe for connecting the syringe to a medication pump housing;

a first tab disposed on the connector so as to provide a first surface for a user to grip and twist the connector to engage the connector with the medication pump housing;

an interface disposed on the connector for connecting the fluid medication reservoir to the infusion set tubing, wherein the interface is formed about an axis around which the connector rotates as the user grips and twists the first surface of the first tab, the axis being perpendicular to a plane defined by the circumference of the connector;

a vent port disposed on the connector to permit passage of air between the interior of the medication pump housing and the exterior of the medication pump housing and equalization of pressure inside the medication pump housing to atmospheric pressure outside the medication pump housing, wherein the vent port is disposed on the connector in an orientation parallel to the plane defined by the circumference of the connector;

a first housing engagement member disposed on the connector adapted to engage the medication pump housing; and

a second housing engagement member disposed on the connector adapted to engage the medication pump housing;

wherein;

at least one housing engagement member disposed on the connector comprises a detent and the fluid medication reservoir is adapted to be releasably secured within a recess of the medication pump housing;

the first and second housing engagement members are disposed on the connector so that the fluid medication reservoir is disposed within the recess of the medication pump housing when the connector is operatively coupled to the medication pump; and

the connector, the tab, the interface and the first and second housing engagement members are formed as a homogenous one piece unit.

39. The apparatus of claim 38, wherein the vent port comprises a hydrophobic material that permits the passage air and inhibits the passage of fluids.