IP Library › Granted Patent US 12,377,197
Granted Patent B2
US 12,377,197 · App. 17/668,554 · Granted Aug 5, 2025

Disposable components for fluid line autoconnect systems and methods

Inventors: David W. McGill (Woodstock, GA); Jacob W. Scarpaci (Manchester, NH); James D. Dale (Milton, FL); Simon C. Helmore (San Francisco, CA); Jason A. Demers (Manchester, NH)
Assignee: DEKA Products Limited Partnership
A61M1/1565A61M1/14A61M1/15A61M1/155A61M1/1561A61M1/159A61M1/16A61M1/28A61M5/16809A61M1/1522A61M1/1524A61M1/153A61M1/1601A61M1/1623A61M1/1629A61M1/1631A61M1/166A61M1/1694A61M1/281A61M1/282A61M1/288A61M5/16813A61M5/16827A61M39/1011A61M39/105A61M2039/1066A61M39/20A61M39/28A61M39/281A61M2205/12A61M2205/121A61M2205/122A61M2205/123A61M2205/127A61M2205/128A61M2205/13A61M2205/14A61M2205/3306A61M2205/3331A61M2205/3334A61M2205/3379A61M2205/36A61M2205/502A61M2209/08F04B43/02F04B43/073F04B43/08F04B43/086Y02A90/10
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Quick Facts
Patent No.
US 12,377,197
App. No.
17/668,554
Granted
Aug 5, 2025
Kind
B2
Abstract

Components for a medical infusion fluid handling system, such as an APD system, in which one or more lines (such as solution lines), spikes or other connection ports may be automatically capped and/or de-capped. This feature may provide advantages, such as a reduced likelihood of contamination since no human interaction is required to de-cap and connect the one or more lines, the spikes, or the other connection ports. For example, a fluid handling cassette may include one or more caps that cover a corresponding spike and include a raised and/or recessed feature to assist in removal of the one or more caps from the cassette. A solution line cap may include a hole and a recess, a groove or other feature to engage with a spike cap and enable removal of the spike cap.

Claims (21)

1. A fluid handling cassette for use in a medical infusion system, the fluid handling cassette comprising:

a generally planar body having a first pump chamber and a second pump chamber each formed as a depression in a first side of the body, each pump chamber of the first pump chamber and the second pump chamber having a first port and a second port connecting a respective pump chamber of the first pump chamber and the second pump chamber to a second side of the body;

a plurality of valve wells on the first side of the body including a first group of valve wells and a second group of valve wells, valve wells in the first group of valve wells each comprising a valve port and an opening, both of the valve port and the opening connecting a respective valve well of the first group of valve wells to the second side of the body;

valve wells in the second group of valve wells each comprising a valve port connecting a respective valve well of the second group of valve wells to the second side of the body, each of the valve wells of the second group of valve wells being connected to the second side of the body only by a respective valve port of the valve ports of the valve wells of the second group of valve wells;

a plurality of cassette ports including at least three cassette ports located on a first end of the body and at least three cassette ports on a second end of the body, each of the plurality of cassette ports being directly connected to a respective valve well of the second group of valve wells; and

a first fluid flowpath and a second fluid flowpath on the second side of the body, each fluid flowpath of the first fluid flowpath and the second fluid flowpath connected to the first port or the second port of a respective pump chamber of the first pump chamber and the second pump chamber via a valve well of the first group of valve wells;

wherein each cassette port of the plurality of cassette ports is connected to one fluid flowpath of the first fluid flowpath and the second fluid flowpath via the respective valve well of the second group of valve wells.

2. The fluid handling cassette of claim 1 , wherein the second fluid flowpath is connected to a patient line cassette port of the plurality of cassette ports, the patient line cassette port configured for connection to a patient line.

3. The fluid handling cassette of claim 1 , wherein the first fluid flowpath is connected to a drain line cassette port and a heater line cassette port of the plurality of cassette ports, the drain line cassette port configured for connection to a drain line, and the heater line cassette port configured for connection to a heater bag line.

4. The fluid handling cassette of claim 1 , wherein the plurality of cassette ports includes at least one solution line spike located at the second end of the body.

5. The fluid handling cassette of claim 4 , wherein each of the at least one solution line spike located at the second end of the body includes a lumen connected to the respective valve well of the second group of valve wells.

6. The fluid handling cassette of claim 4 , wherein the second fluid flowpath is connected to the at least one solution line spike via the respective valve well of the second group of valve wells.

7. The fluid handling cassette of claim 1 , wherein the cassette comprises a first flexible membrane attached to the first side of the body over the first pump chamber and the second pump chamber and the plurality of valve wells, wherein the first flexible membrane over the first pump chamber and the second pump chamber is configured for moving fluid in the first pump chamber and the second pump chamber, and the first flexible membrane over the plurality of valve wells is configured for selectively occluding the valve ports of respective valve wells of the plurality of valve wells.

8. The fluid handling cassette of claim 1 , wherein the first fluid flowpath and the second fluid flowpath comprise walls on the second side of the body, and wherein the fluid handling cassette comprises a rigid or flexible sheet attached to the second side of the body, wherein the rigid or flexible sheet is configured to make sealing contact with the walls to form the first fluid flowpath and the second fluid flowpath.

9. A fluid handling cassette for use in a medical infusion system, the fluid handling cassette comprising:

a generally planar body having a first pump chamber and a second pump chamber each formed as a depression in a first side of the body, each pump chamber of the first pump chamber and the second pump chamber having a first port and a second port connecting a respective pump chamber of the first pump chamber and the second pump chamber to a second side of the body;

a plurality of valve wells on the first side of the body including a first group of valve wells and a second group of valve wells, valve wells in the first group of valve wells each comprising a valve port and an opening connecting a respective valve well of the first group of valve wells to the second side of the body;

valve wells in the second group of valve wells each comprising a valve port connecting a respective valve well of the second group of valve wells to the second side of the body, each of the valve wells of the second group of valve wells being connected to the second side of the body only by a respective valve port of the valve ports of the valve wells of the second group of valve wells;

a plurality of cassette ports including at least four cassette ports located on a first end of the body; and

a first fluid flowpath and a second fluid flowpath on the second side of the body, each fluid flowpath of the first fluid flowpath and the second fluid flowpath connected to the first port or the second port of a respective pump chamber of the first pump chamber and the second pump chamber via only a respective one valve well of the first group of valve wells;

wherein each cassette port of the plurality of cassette ports is connected to one fluid flowpath of the first fluid flowpath and the second fluid flowpath via a respective valve well of the second group of valve wells.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 17, 2022
From: MCGILL, DAVID W.; SCARPACI, JACOB W.; DALE, JAMES D.; HELMORE, SIMON C.; DEMERS, JASON A.
To: DEKA PRODUCTS LIMITED PARTNERSHIP
Reel/Frame 059036/0416 →
Continuity (7)
Continuation 16207349 · Dec 3, 2018
Continuation 15837182 · Dec 11, 2017
Continuation 14466437 · Aug 22, 2014
Continuation 12864322
Provisional Application 61058469 · Jun 3, 2008
Provisional Application 61011967 · Jan 23, 2008
Related Publication 20220233754A1 · Jul 28, 2022
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