Set connector systems for venting a fluid reservoir

• US 10,589,038 B2
• Filed: 04/27/2016
• Issued: 03/17/2020
• Est. Priority Date: 04/27/2016
• Status: Active Grant

• Current Assignee: Medtronic Minimed Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Minimed Incorporated (Medtronic Plc)
• Inventors: Chattaraj, Sarnath, Dang, Kiem H., Gulati, Poonam S.
• Primary Examiner(s): Flick, Jason E
• Assistant Examiner(s): Zamory, Justin L
• Application Number:
  US15/140,229
• Publication Number:
  US 20170312454A1
• Time in Patent Office: 1,420 Days
• CPC Class Codes: A61M 2205/502 User interfaces, e.g. screens or keyboards
• CPC Class Codes: A61M 2205/7527 liquophilic, hydrophilic
• 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 39/24 Check- or non-return valves
• CPC Class Codes: A61M 5/142 Pressure infusion, e.g. using pumps
• CPC Class Codes: A61M 5/14212 Pumping with an aspiration and an expulsion action
• CPC Class Codes: A61M 5/14244 adapted to be carried by the patient, e.g. portable on the body
• CPC Class Codes: A61M 5/16813 by controlling the degree of opening of the flow line
• CPC Class Codes: A61M 5/36 with means for eliminating or preventing injection or infusion of air into body dialysis systems, blood oxygenators A61M1/14; haemofiltration equipment A61M1/34; automatic tube cut-off A61M39/281

Abstract

A set connector system for venting a gas from a fluid reservoir of a fluid infusion device is provided. The set connector system includes a connector system having a first body section coupled to a second body section. The first body section defines a bore in communication with a chamber and a counterbore of the second body section to define a fluid flow path from the fluid reservoir. The chamber of the second body section is in fluid communication with a vent subsystem defined through the second body section. The vent subsystem terminates in an outlet, and the vent subsystem directs gas in the fluid flow path through the second body section to the outlet.

Claims

1. A fluid infusion device, comprising:

a housing having a first chamber that receives a removable fluid reservoir, the fluid reservoir having a first end and a second end; and

a connector system having a first body section coupled to a second body section, the first body section defining a bore in communication with a chamber and a counterbore of the second body section, the counterbore of the second body section receives and mates with the second end of the fluid reservoir to define a fluid flow path from the fluid reservoir, the second body section received within the first chamber to retain the fluid reservoir within the housing, the chamber of the second body section in fluid communication with a vent subsystem defined through the second body section, the vent subsystem terminating in an outlet, and the vent subsystem directs gas in the fluid flow path through the second body section to the outlet,

wherein the vent subsystem comprises a plurality of conduit passages, with at least one valve fluidly coupled between one of the plurality of conduit passages and another of the plurality of conduit passages, the at least one valve comprises a one-way valve, the at least one valve is downstream from the chamber of the second body section and the chamber of the second body section includes a filter in communication with the fluid flow path that filters the gas from fluid in the fluid flow path to remove the gas that is trapped in the fluid in the fluid flow path.

2. The fluid infusion device of claim 1, wherein the chamber is annular, and includes a filter in communication with the fluid flow path that filters the gas from fluid in the fluid flow path to remove the gas that is trapped in the fluid in the fluid flow path.

3. The fluid infusion device of claim 1, wherein the outlet is defined within a thread that at least partially surrounds the second body section.

4. The fluid infusion device of claim 1, wherein the outlet is in fluid communication with a conduit defined in the housing associated with the fluid infusion device to vent the gas to an ambient environment external to the housing.

5. The fluid infusion device of claim 4, wherein the conduit includes a one-way valve that inhibits the flow of fluids into the housing.

6. The fluid infusion device of claim 1, wherein the housing has a first chamber and a second chamber, and the outlet is in fluid communication with the second chamber to vent the gas to the second chamber.

7. The fluid infusion device of claim 1, further comprising a lock that at least partially surrounds a portion of the connector system to securely couple the connector system to the housing associated with the fluid infusion device, and the second body section includes a lock receptacle that receives a portion of the lock to securely couple the connector system to the housing.

8. The fluid infusion device of claim 7, wherein the lock is slidably coupled to the housing, the lock is slidable relative to the housing between a first, locked position in which the connector system is secured to the housing and a second, release position in which the connector system is removable from the housing, and the lock is biased into the first, locked position.

9. The fluid infusion device of claim 1, further comprising at least one ring disposed within a housing of the fluid infusion device that cooperates with the connector system to securely couple the connector system to the housing.

10. The fluid infusion device of claim 9, wherein the at least one ring comprises a plurality of rings, with one of the plurality of rings coupled to the connector system and movable in a direction parallel to a longitudinal axis of the housing and relative to the other of the plurality of rings to securely couple the connector system to the housing.

11. A fluid infusion device, comprising:

a housing defining a first chamber that receives a fluid reservoir and a second chamber adjacent to the first chamber, the first chamber defining at least one chamber thread and the fluid reservoir having a first end and an opposite second end;

a set connector system for venting a gas from the fluid reservoir, the set connector system including a connector system having a first body section coupled to a second body section, the first body section defining a bore, the second body section including a counterbore that receives and mates with the second end of the fluid reservoir, the second body section received within the first chamber to retain the fluid reservoir within the housing, the bore of the first body section and the counterbore of the second body section cooperate to define a fluid flow path from the fluid reservoir, the second body section defining at least one thread that mates with the at least one chamber thread, the second body section including a vent subsystem in communication with the fluid flow path that terminates in an outlet defined within the at least one thread, the vent subsystem directs gas in the fluid flow path to the outlet, and the second body section defines a chamber in fluid communication with the bore of the first body section and the counterbore, the chamber is in communication with the vent subsystem and the chamber includes a filter in communication with the fluid flow path that filters the gas from fluid in the fluid flow path to remove the gas that is trapped in the fluid in the fluid flow path; and

a lock coupled to the housing that at least partially surrounds a portion of the connector system, the lock slidable relative to the housing between a first, locked position in which the connector system is secured to the housing and a second, release position in which the connector system is removable from the housing,

wherein the second body section includes a lock receptacle that receives a portion of the lock to securely couple the connector system to the housing and the vent subsystem comprises a plurality of conduit passages, with at least one valve fluidly coupled between one of the plurality of conduit passages and another of the plurality of conduit passages, the at least one valve comprises a one-way valve and the at least one valve is downstream from the chamber that includes the filter.

12. The fluid infusion device of claim 11, wherein the at least one thread at least partially surrounds the second body section.

13. The fluid infusion device of claim 11, wherein the outlet is in fluid communication with the second chamber to vent the gas to the second chamber.