Connection and alignment systems and methods

• US 8,998,840 B2
• Filed: 12/30/2009
• Issued: 04/07/2015
• Est. Priority Date: 12/30/2009
• Status: Active Grant

• Current Assignee: Medtronic Minimed Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Minimed Incorporated (Medtronic Plc)
• Inventors: Hanson, Ian B., Bente, Paul F. IV
• Primary Examiner(s): FLICK, JASON E
• Application Number:
  US12/650,378
• Publication Number:
  US 20110160655A1
• Time in Patent Office: 1,924 Days
• Field of Search: 600/345, 600/365, 600/37, 604/181, 604/131, 604/134, 604/136, 604/151, 604/157, 604 65- 67
• US Class Current: 604/37
• CPC Class Codes: A61M 2005/14208 with a programmable infusion control system, characterised by the infusion program
• 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 2005/1585 Needle inserters
• CPC Class Codes: A61M 2039/1072 with a septum present in the connector
• CPC Class Codes: A61M 2205/14 Detection of the presence or absence of a tube, a connector or a container in an apparatus
• CPC Class Codes: A61M 2205/6054 Magnetic identification systems
• CPC Class Codes: A61M 2207/00 Methods of manufacture, assembly or production
• CPC Class Codes: A61M 2230/201 Glucose concentration
• CPC Class Codes: A61M 5/1413 Modular systems comprising interconnecting elements
• CPC Class Codes: A61M 5/14248 of the skin patch type
• CPC Class Codes: A61M 5/1456 with a replaceable reservoir comprising a piston rod to be moved into the reservoir, e.g. the piston rod is part of the removable reservoir
• CPC Class Codes: A61M 5/172 electrical or electronic A61M5/16804, A61M5/16831 take precedence
• CPC Class Codes: A61M 5/1723 using feedback of body parameters, e.g. blood-sugar, pressure measurement of body parameters A61B5/00
• CPC Class Codes: Y10T 29/49002 Electrical device making
• CPC Class Codes: Y10T 29/49826 Assembling or joining
• CPC Class Codes: Y10T 29/49828 Progressively advancing of work assembly station or assembled portion of work

Abstract

A delivery system for delivering fluidic media to a user having a second housing portion configured to be selectively operatively engaged with and disengaged from a first housing portion, the first housing portion and the second housing portion configured to be slidable relative to each other to operatively engage each other; and a fluid connector supported by one the housing portions in a position to engage a reservoir supported by an other of the housing portions in a case where the first housing portion and the second housing portion are slid relative to each other to operatively engage each other.

Claims

1. A delivery system for delivering fluidic media to a user, the delivery system comprising:

a first housing portion adapted to be carried by a user;

a second housing portion configured to be selectively operatively engaged with and disengaged from the first housing portion, one of the first housing portion and the second housing portion supporting a reservoir having an interior volume for containing fluidic media, to be selectively delivered to the user through a port of the reservoir, the first housing portion and the second housing portion configured to be moved relative to each other along an engagement path to operatively engage each other;

a fluid connector supported by the other of the first housing portion and the second housing portion in a position to engage the reservoir in a case where the first housing portion and the second housing portion are moved relative to each other along the engagement path to operatively engage each other;

a first alignment structure for aligning the first housing portion and the second housing portion at a first position along the engagement path; and

a second alignment structure for aligning the fluid connector with the port of the reservoir at a second position along the engagement path.

2. The delivery system of claim 1,

wherein the reservoir is supported by the first housing portion and the fluid connector is supported by the second housing portion;

and

wherein the fluid connector is engaged with the reservoir for fluid flow between the fluid connector and the reservoir in a case where the first housing portion is in the second position relative to the second housing portion.

3. The delivery system of claim 1,

the first alignment structure comprising a dovetail connection structure;

the dovetail connection structure including a dovetail supported by one of the first housing portion and the second housing portion and a groove on the other of the first housing portion and the second housing portion relative to the one of the first housing portion and the second housing portion supporting the dovetail, the dovetail for moving along at least a portion of the groove and engaging a surface defining the groove as the first housing portion slides relative to the second housing portion to the second position.

4. The delivery system of claim 1, the first alignment structure including a protrusion supported by one of the first housing portion and the second housing portion and a groove on the other of the first housing portion and the second housing portion relative to the one of the first housing portion and the second housing portion supporting the protrusion, the protrusion for moving along at least a portion of the groove and engaging a surface defining the groove as the first housing portion slides relative to the second housing portion to the second position.

5. The delivery system of claim 4, further comprising a connection structure including an abutment defining a cavity on the other of the first housing portion and the second housing portion relative to the one of the first housing portion and the second housing portion supporting the protrusion, the abutment for locking the protrusion in the cavity when the first housing portion is in the second position relative to the second housing portion.

6. The delivery system of claim 1, further comprising a connection structure including:

a tab supported by one of the first housing portion and the second housing portion and a recess on the other of the first housing portion and the second housing portion relative to the one of the first housing portion and the second housing portion supporting the tab, the tab for moving along at least a portion of the recess as the first housing portion slides relative to the second housing portion to the second position; and

an abutment defining a cavity on the other of the first housing portion and the second housing portion relative to the one of the first housing portion and the second housing portion supporting the tab, the abutment for locking the tab in the cavity when the first housing portion is in the second position relative to the second housing portion.

7. The delivery system of claim 1,

one of the first housing portion and the second housing portion having a first engagement member;

the other of the first housing portion and the second housing portion, relative to the one of the first housing portion and the second housing portion having the first engagement member, having a second engagement member;

the first engagement member and the second engagement member configured to engage each other as the first housing portion slides relative to the second housing portion to the second position to lock the first housing portion to the second housing portion.

8. The delivery system of claim 7,

wherein the first engagement member comprises a plurality of tabs;

and

wherein the second engagement member comprises at least one of a plurality of apertures and tabs for engaging at least one of the plurality of tabs as the first housing portion slides relative to the second housing portion to the second position to lock the first housing portion to the second housing portion.

9. The delivery system of claim 7,

wherein the first housing portion slides in a first direction relative to the second housing portion to the second position;

and

wherein the first engagement member and the second engagement member inhibit separation of the first housing portion from the second housing portion in an axial direction transverse to the first direction in a case where the first engagement member and the second engagement member are engaged with each other.

10. The delivery system of claim 1, the first alignment structure comprising a pair of ridges extending along a portion of the one of the first housing portion and the second housing portion in a first direction, the pair of ridges for guiding the other of the first housing portion and the second housing portion as the first housing portion slides in the first direction relative to the second housing portion to the second position.

11. The delivery system of claim 10, wherein each of the ridges extend along a periphery of the one of the first housing portion and second housing portion.

12. The delivery system of claim 10, wherein the ridges of the pair of ridges are parallel to each other.

13. The delivery system of claim 12, each of the ridges having an inner surface, wherein the inner surface of each of the ridges are nonparallel to each other.

14. The delivery system of claim 10, wherein the ridges of the pair of ridges are non-parallel to each other.

15. The delivery system of claim 10, the delivery system further comprising:

a connection structure for connecting the first housing portion and the second housing portion as the first housing portion slides relative to the second housing portion to the second position;

the pair of ridges for guiding the other of the first housing portion and the second housing portion to allow the connection structure to connect the first housing portion and the second housing portion as the first housing portion slides relative to the second housing portion to the second position.

16. The delivery system of claim 1, one of the first housing portion and the second housing portion having a stopping surface for contacting a portion of the other of the first housing portion and the second housing portion, relative to the one of the first housing portion and the second housing portion having the stopping surface, to substantially prevent the reservoir supported by the one of the first housing portion and the second housing portion from contacting the other of the first housing portion and the second housing portion relative to the one of the first housing portion and the second housing portion supporting the reservoir.

17. The delivery system of claim 16, the stopping surface for contacting a portion of the other of the first housing portion and the second housing portion, relative to the one of the first housing portion and the second housing portion having the stopping surface, to substantially prevent the reservoir from contacting the other of the first housing portion and the second housing portion, relative to the one of the first housing portion and the second housing portion, after the fluid conduit and the reservoir are engaged.

18. The delivery system of claim 1, the delivery system further comprising:

one or more first magnets, supported on one of the first housing portion and the second housing portion and a magnetic field sensor supported on the other of the first housing portion and the second housing portion relative to the one of the first housing portion and the second housing portion supporting the one or more first magnets, the one or more first magnets and the magnetic field sensor configured to align with each other to allow the magnetic field sensor to detect at least one of the one or more first magnets in a case where the first housing portion slides relative to the second housing portion to the second position and is properly aligned with the second housing portion; and

one or more second magnets supported on the one of the first housing portion and the second housing portion and arranged to align with the magnetic field sensor to allow the magnetic field sensor to detect the one or more second magnets in a case where the first housing portion slides relative to the second housing portion to the second position and is misaligned with the second housing portion.

19. The delivery system of claim 18, wherein the one or more first magnets is arranged between at least two of the second magnets.

20. The delivery system of claim 19, wherein the one or more first magnets have poles arranged to face opposite to poles of the second magnets.

21. The delivery system of claim 1, one of the first housing portion and the second housing portion having a latch for engaging the other of the first housing portion and the second housing portion, relative to the one of the first housing portion and the second housing portion having the latch, when the first housing portion is in the second position relative to the second housing portion.

22. The delivery system of claim 21, the latch configured to be squeezable to at least one of engage and disengage the other of the first housing portion and the second housing portion relative to the one of the first housing portion and the second housing portion having the latch.

23. The delivery system of claim 21, the other of the first housing portion and the second housing portion, relative to the one of the first housing portion and the second housing portion having the latch, having a sensor for sensing the latch.

24. The delivery system of claim 21,

one of the first housing portion and the second housing portion having a bias member for biasing the first housing portion and the second housing portion apart from each other in a case where the first housing portion is slid in the first direction, but is not slid to the second position;

the latch for engaging the other of the first housing portion and the second housing portion, relative to the one of the first housing portion and the second housing portion having the latch, in a case where the first housing portion is slid in the first direction to the second position.

25. The delivery system of claim 1, one of the first housing portion and the second housing portion having a bias member for biasing the first housing portion and the second housing portion apart from each other in a case where the first housing portion is slid in the first direction, but is not slid to the second position.

26. The delivery system of claim 1, wherein the fluid connector comprises a needle for piercing a septum of the reservoir in a case where the reservoir is supported by the one of the first housing portion and the second housing portion and the first housing portion slides relative to the second housing portion to the second position.

27. The delivery system of claim 1, the fluid connector having a first opening in fluid communication with the interior volume of the reservoir in a case where the reservoir is supported by the one of the first housing portion and the second housing portion and the first housing portion and the second housing portion are operatively engaged;

the fluid connector having a second opening in fluid communication with an infusion path extending into skin of a user.

28. The delivery system of claim 1, the fluid connector in fluid communication with a subcutaneous path in a user, the fluid connector for delivering fluidic media from the interior volume of the reservoir to a user in a case where the fluid connector is engaged with the reservoir and the fluidic media is expelled from the interior volume of the reservoir.

29. The delivery system of claim 28, wherein the first housing portion engageable with a cannula for insertion into the user to provide the subcutaneous path.

30. The delivery system of claim 1, the engagement path extending along a first dimension of the first housing portion;

the first alignment structure for aligning the first housing portion and the second housing portion in a second dimension transverse to the first dimension;

the second alignment structure for aligning the first housing portion and the second housing portion in the second dimension.

31. The delivery system of claim 1, wherein the second alignment structure provides a finer alignment of the fluid connector and the port of the reservoir than an alignment of the first housing portion and the second housing portion provided by the first alignment structure.

32. The delivery system of claim 1, wherein the first alignment structure provides a coarser alignment of the first housing portion and the second housing portion than an alignment of the fluid connector and the port of the reservoir provided by the second alignment structure.

33. The delivery system of claim 1, the first alignment structure and the second alignment structure arranged to align the first housing portion and the second housing portion at the first position of the engagement path and then align the fluid connector with the port of the reservoir at the second position of the engagement path.

34. The delivery system of claim 1, wherein the reservoir is held at least partially within an interior volume of the one of the first housing portion and the second housing portion, the reservoir containing the fluidic media.

35. A delivery system, for delivering fluidic media to a user, the delivery system comprising:

a first housing portion adapted to be carried by a user;

a second housing portion configured to be selectively operatively engaged with and disengaged from the first housing portion, one of the first housing portion and the second housing portion for supporting a reservoir having an interior volume for containing fluidic media, the first housing portion and the second housing portion configured to be moved relative to each other along an engagement path to operatively engage each other;

a fluid connector supported by the other of the first housing portion and the second housing portion in a position to engage the reservoir in a case where the reservoir is supported by the one of the first housing portion and the second housing portion and the first housing portion and the second housing portion are moved relative to each other along the engagement path to operatively engage each other; and

a first alignment structure for aligning the first housing portion and the second housing portion at a first position along the engagement path; and

a second alignment structure for aligning the fluid connector with a port of the reservoir at a second position along the engagement path;

the first alignment structure including a protrusion supported by one of the first housing portion and the second housing portion and a groove on the other of the first housing portion and the second housing portion relative to the one of the first housing portion and the second housing portion supporting the protrusion, the protrusion for moving along at least a portion of the groove and engaging a surface defining the groove as the first housing portion slides relative to the second housing portion to the second position;

wherein the surface defining the groove is tapered to allow the protrusion to engage the surface of the groove in a friction fit manner as the first housing portion is moved relative to the second housing portion along the engagement path toward the second position.

36. A delivery system, for delivering fluidic media to a user, the delivery system comprising:

a first housing portion adapted to be carried by a user;

a second housing portion configured to be selectively operatively engaged with and disengaged from the first housing portion, one of the first housing portion and the second housing portion for supporting a reservoir having an interior volume for containing fluidic media, the first housing portion and the second housing portion configured to be moved relative to each other along an engagement path to operatively engage each other;

a fluid connector supported by the other of the first housing portion and the second housing portion in a position to engage the reservoir in a case where the reservoir is supported by the one of the first housing portion and the second housing portion and the first housing portion and the second housing portion are moved relative to each other along the engagement path to operatively engage each other; and

a first alignment structure for aligning the first housing portion and the second housing portion at a first position along the engagement path; and

a second alignment structure for aligning the fluid connector with a port of the reservoir at a second position along the engagement path;

the first alignment structure including a protrusion supported by one of the first housing portion and the second housing portion and a groove on the other of the first housing portion and the second housing portion relative to the one of the first housing portion and the second housing portion supporting the protrusion, the protrusion for moving along at least a portion of the groove and engaging a surface defining the groove as the first housing portion slides relative to the second housing portion to the second position;

wherein the protrusion is tapered to allow the protrusion to engage the surface in a friction fit manner as the first housing portion is moved relative to the second housing portion along the engagement path toward the second position.

37. A method of making a medical device, the method comprising:

adapting a first housing portion to be carried by a user;

configuring a second housing portion to be selectively operatively engaged with and disengaged from the first housing portion, one of the first housing portion and the second housing portion supporting a reservoir having an interior volume for containing fluidic media to be selectively delivered to the user through a port of the reservoir, the first housing portion and the second housing portion configured to be slidable relative to each other to operatively engage each other;

supporting a fluid connector by the other of the first housing portion and the second housing portion in a position to engage the reservoir in a case where the first housing portion and the second housing portion are slid relative to each other to operatively engage each other;

providing a first alignment structure for aligning the first housing portion and the second housing portion at a first position along the engagement path; and

providing a second alignment structure for aligning the fluid connector with the port of the reservoir at a second position along the engagement path.