Pump systems with positioning features

Patent metadata

Field	Value
Publication number	US-11752255-B2
Application number	US-201916365541-A
Country	US
Kind code	B2
Filing date	Mar 26, 2019
Priority date	Dec 1, 2014
Publication date	Sep 12, 2023
Grant date	Sep 12, 2023

Abstract

Pump systems are described. An example pump system may include a processing unit and a recess configured to receive a pump cartridge. The recess can include a plurality of cartridge engagement slots. The cartridge engagement slots can be configured for removably coupling the pump cartridge. The recess can also include a cartridge-facing surface with a positioning feature slot extending orthogonal to a general plane of the cartridge-facing surface.

First claim

What is claimed is:

1. A pump system comprising:
a processing unit; and
an interface module fixedly coupled to the processing unit and defining a recess configured to receive a pump cartridge, the recess defining a plurality of arcuate perimeter edges corresponding to the pump cartridge, wherein the plurality of arcuate perimeter edges includes an arcuate side edge and the recess further defining a first straight longitudinal edge intersecting with the arcuate side edge, a second straight longitudinal edge intersecting with the arcuate side edge and disposed on an opposite side of the arcuate side edge from the first straight longitudinal edge, and a third straight longitudinal edge disposed across from the first straight longitudinal edge defining a first recess width, the third straight longitudinal edge also disposed and across from the second straight longitudinal edge defining a second recess width, wherein the first recess width is greater than the second recess width, the recess comprising:
a plurality of cartridge engagement slots configured for removably coupling the pump cartridge; and
a cartridge-facing surface comprising a positioning feature slot extending orthogonal to a general plane of the cartridge-facing surface.

2. The pump system of claim 1 , wherein the plurality of cartridge engagement slots comprises at least one L-shaped locking channel.

3. The pump system of claim 1 , wherein the plurality of cartridge engagement slots comprises at least one flat face ramp portion.

4. The pump system of claim 1 , comprising an inlet recess formed through a portion of the recess.

5. The pump system of claim 1 , comprising an outlet recess formed through a portion of the recess.

6. The pump system of claim 1 , wherein the cartridge-facing surface comprises a positioning protrusion extending from the cartridge-facing surface.

7. The pump system of claim 6 , wherein the positioning protrusion is disposed proximal to an inlet-side valve actuator.

8. The pump system of claim 6 , wherein the positioning protrusion is disposed proximal to an outlet-side valve actuator.

9. The pump system of claim 1 , the recess comprising an upstream pressure sensing probe.

10. The pump system of claim 1 , the recess comprising a downstream pressure sensing probe.

11. A pump system comprising:
a processing unit; and
an interface module fixedly coupled to the processing unit and defining a cartridge recess configured to receive a pump cartridge, the cartridge recess defining a plurality of arcuate perimeter edges corresponding to the pump cartridge, wherein the plurality of arcuate perimeter edges includes an arcuate side edge and the recess further defining a first straight longitudinal edge intersecting with the arcuate side edge, a second straight longitudinal edge intersecting with the arcuate side edge and disposed on an opposite side of the arcuate side edge from the first straight longitudinal edge, and a third straight longitudinal edge disposed across from the first straight longitudinal edge defining a first recess width, the third straight longitudinal edge also disposed across from the second straight longitudinal edge defining a second recess width, wherein the first recess width is greater than the second recess width, the cartridge recess comprising:
a cartridge-facing surface; and
a plurality of cartridge engagement slots configured for removably coupling the pump cartridge, wherein each of the plurality of cartridge engagement slots comprises a flat face ramp portion.

12. The pump system of claim 11 , comprising an inlet recess formed through a portion of the cartridge recess.

13. The pump system of claim 11 , comprising an outlet recess formed through a portion of the cartridge recess.

14. The pump system of claim 11 , wherein the cartridge-facing surface comprises a positioning protrusion extending from the cartridge-facing surface.

15. The pump system of claim 14 , wherein the positioning protrusion is disposed proximal to an inlet-side valve actuator.

16. The pump system of claim 14 , wherein the positioning protrusion is disposed proximal to an outlet-side valve actuator.

17. The pump system of claim 11 , the cartridge recess comprising an upstream pressure sensing probe.

18. The pump system of claim 11 , the cartridge recess comprising a downstream pressure sensing probe.

Assignees

• Carefusion 2200 Inc
• Carefusion 303 Inc

Inventors

• Toro Daniel
• Magers Corey Michael
• Dodge Santiago
• Vasko Robert

Classifications

• A61M5/142 Primary

  Pressure infusion, e.g. using pumps · CPC title

• A61M2205/121

  interface between cassette and base · CPC title

• A61M2205/128

  with incorporated valves · CPC title

• A61M2205/3327

  Measuring · CPC title

• A61M2205/505

  Touch-screens; Virtual keyboard or keypads; Virtual buttons; Soft keys; Mouse touches · CPC title