Cassette for retention of fluid path components for fluid injector system

Patent metadata

Field	Value
Publication number	US-2024342368-A1
Application number	US-202418756447-A
Country	US
Kind code	A1
Filing date	Jun 27, 2024
Priority date	Dec 1, 2020
Publication date	Oct 17, 2024
Grant date	—

Abstract

A cassette for holding fluid path components for a fluid injector may include a body defining at least one feature for holding at least one fluid path component for the fluid injector; and a connecting member for removably connecting the body of the cassette to the fluid injector, the connecting member operatively connected to the body, wherein the connecting member comprises at least one pivotable connecting feature protruding from the body, and wherein each of the at least one pivotable connecting feature is configured for removably connecting to a corresponding connecting feature receiver on the fluid injector such that the body is pivotally movable relative to the fluid injector between a first, unlatched position and a second, latched position in which the at least one fluid path component on the body of the cassette is positioned for operative connection to a corresponding feature of the fluid injector.

First claim

The invention claimed is:

1 . A fluid path set for a fluid injector, the fluid path set comprising:
a first fluid path comprising a first proximal connector element at a proximal end of the first fluid path, a first distal connector element at a distal end of the first fluid path, and one or more fluid path components selected from the group consisting of a first air detection region, a first air bubble suspension apparatus, and a first stopcock; and a cassette comprising a body, a plurality of retention elements, and at least one connecting member for removably connecting the body to the fluid injector, wherein at least one of the plurality of retention elements are configured for holding the one or more components of the first fluid path.

2 . The fluid path set of claim 1 , wherein the one or more fluid path components comprises the first air detection region, the first air bubble suspension apparatus, and the first stopcock, wherein the first air bubble suspension apparatus is located in the first fluid path between the first air detection region and the first stopcock.

3 . The fluid path set of claim 1 , wherein the first air detection region is connected to the body of the cassette by at least one of the plurality of retention elements and wherein the cassette is configured to retain the first air detection region in a position to interact with a first air detector of the fluid injector.

4 . The fluid path set of claim 1 , wherein the first fluid path further comprises at least one of a first removable end cap associated with a first proximal connector element and a second removable end cap associated with the first distal connector element.

5 . The fluid path set of claim 4 , wherein a tab of the first removable end cap is retained in a first retaining slot on the body of the cassette and positioned to hold the first proximal connector at a proximal end of the body of the cassette.

6 . The fluid path set of claim 1 , wherein the first stopcock is a three-way stopcock wherein a first connector of the three-way stopcock is connected to an upstream tubing component of the first fluid path, a second connector of the three-way stopcock is connected to a downstream tubing component of the first fluid path, and a third connector of the three-way stopcock is connected to a first fill tubing component configured for fluid communication with a first bulk fluid container.

7 . The fluid path set of claim 6 , wherein the three-way stopcock has a first fluid filling position providing fluid communication between the first bulk fluid container and the first proximal connector element, a second fluid delivery position providing fluid communication between the first proximal connector element and the first distal connector element, and a third stopped position blocking fluid communication between the first proximal connector element, the first bulk fluid container, and the first distal connector element.

8 . The fluid path set of claim 6 , wherein the first fill tubing component has a spike as a distal end, wherein the spike is configured for spiking the first bulk fluid container to provide fluid communication between the first fill tubing component and the first bulk fluid container.

9 . The fluid path set of claim 6 , wherein at least one of the plurality of retention elements retains the first stopcock in a position configured to engage a first stopcock actuator of the fluid injector.

10 . The fluid path set of claim 1 , further comprising a second fluid path comprising a second proximal connector element at a proximal end of the second fluid path, a second distal connector element at a distal end of the second fluid path, and one or more fluid path components of the second fluid path selected from the group consisting of a second air detection region, a second air bubble suspension apparatus, and a second stopcock,
wherein at least one of the plurality of retention elements are configured for holding the one or more components of the second fluid path.

11 . The fluid path set of claim 10 , wherein the one or more fluid path components of the second fluid path comprises the second air detection region, the second air bubble suspension apparatus, and the second stopcock, where the second air bubble suspension apparatus is located in the second fluid path between the second air detection region and the second stopcock.

12 . The fluid path set of claim 10 , wherein the first fluid path is configured to deliver a first fluid from a first syringe connected to the fluid injector to a patient and the second fluid path is configured to deliver a second fluid from a second syringe connected to the fluid injector to the patient.

13 . A fluid path for a fluid injector, the fluid path comprising:
a proximal connector element at a proximal end of the fluid path, wherein the first proximal connector is configured for connecting to a syringe; an air detection tubing region; an air bubble suspension apparatus; a stopcock; a distal connector element at a distal end of the fluid path, wherein the distal connector element is configured for connecting to a patient delivery fluid path.

14 . The fluid path of claim 13 , further comprising:
a first tubing section providing fluid communication between the proximal connector element and the air detection tubing region; a second tubing section providing fluid communication between the air detection tubing region and a fluid inlet of the air bubble suspension apparatus; a third tubing section providing fluid communication between a fluid outlet of the air bubble suspension apparatus and an inlet connector of the stopcock; and a fourth tubing section providing fluid communication between an outlet connector of the stopcock and the distal connector element, wherein the fluid path provides fluid communication between the proximal connector element and the distal connector element when the stopcock is in a delivery position.

15 . The fluid path of claim 14 , wherein the stopcock is a three-way stopcock comprising the inlet connector, the outlet connector, and a fill connector, wherein the fluid path further comprises fifth tubing section having a spike at a distal end of the fifth tubing section, wherein the fifth tubing section is configured for providing fluid communication between the syringe and a bulk fluid container attached to the spike when the three-way stopcock is in a fill position.

16 . The fluid path of claim 13 , further comprising a first removable end cap associated with a proximal connector element and a second removable end cap associated with the distal connector element.

17 . The fluid path of claim 16 , wherein the first removable end cap and the second removable end cap are configured to cover and prevent inadvertent contamination of the proximal connector element and the distal connector element.

18 . The fluid path of claim 13 , wherein the fluid path is configured for connection to a body of a cassette and the cassette is configured for removable attachment with a fluid injector.

19 . The fluid path of claim 18 , wherein the fluid path connects to the body of the cassette by a plurality of retention elements.

20 . The fluid path of claim 13 , wherein the proximal connector element is configured for connection with an outlet nozzle of a syringe and wherein the distal connector element is configured for connection with a single use tubing set.

Assignees

• Bayer Healthcare Llc

Inventors

• Naples Andrew
• Cowan Kevin
• Spohn Michael
• Haury John
• Campbell Patrick
• Dedig James
• Lee Randy
• Caswell John
• Macnamee Katherine
• Tirone James

Classifications

• A61L2103/15

  Laboratory, medical or dentistry appliances, e.g. catheters or sharps · CPC title

• A61M5/365

  Air detectors (A61M5/1684 takes precedence; in extracorporeal blood circuits A61M1/3626) · CPC title

• A61M5/16881

  Regulating valves (on-off valves, e.g. clamps A61M39/28) · CPC title

• A61M2205/6072

  Bar codes · CPC title

• A61M2005/1402

  Priming · CPC title