ADMINISTRATION SET WITH TWO KEYS

• US 20080199337A1
• Filed: 12/25/2007
• Published: 08/21/2008
• Est. Priority Date: 12/25/2006
• Status: Active Grant

• Current Assignee: Caesarea Medical Electronics, Ltd. (Becton, Dickinson & Co)
• Original Assignee: Caesarea Medical Electronics, Ltd. (Becton, Dickinson & Co)
• Inventors: Barak, Swi
• Granted Patent: US 8,496,455 B2
• Time in Patent Office: Days
• US Class Current: 417/477.2
• 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 2205/6045 having complementary physical shapes for indexing or registration purposes
• CPC Class Codes: A61M 39/08 Tubes; Storage means specially adapted therefor
• CPC Class Codes: A61M 5/142 Pressure infusion, e.g. using pumps
• CPC Class Codes: A61M 5/14228 with linear peristaltic action, i.e. comprising at least three pressurising members or a helical member
• CPC Class Codes: A61M 5/16831 Monitoring, detecting, signalling or eliminating infusion flow anomalies low-level float-valves causing cut-off A61M5/40; indicating or recording presence, absence or direction of flow in general G01P13/0066

Abstract

A flow set for administration of liquid when using a liquid pump is disclosed. The flow set of the present invention permits identification of the flow set by a liquid pump that uses this flow set and prevention of pumping tube-segment over stretching.

Claims

1. A disposable flow set comprising:

(a) a drip chamber or a spike;

(b) a first administration tube to administer liquid from said drip chamber or spike;

(c) at least one pumping tube-segment, connected to the first administration tube, enabling said flow set to be installed in a liquid pump;

(d) a second administration tube installed at the end of the last one of said pumping tube-segment;

(e) an anti free flow valve installed on the second administration tubing; and

(f) at least one identifying key.

2. The disposable flow set of claim 1, whereby the at least one pumping tube-segment has a respective identifying-key connected thereto.

3. The flow set of claim 2, further comprising:

(g) at least one stretching key, whereby the at least one pumping tube-segment has a respective stretching key connected thereto.

4. The disposable flow set of claim 3, wherein each identifying-key comprises a hoop that is clamped on said respective tube-segment and includes:

a. a number of teeth with a unique combination of location and width, said teeth are to be inserted into a compatible niches in a specific liquid pump and prevent insertion of said flow set to a non compatible liquid pump; and

b. a pressing-plate in order to allow said pumping tube-segment to be pressed against a pressure sensor of said liquid pump enabling said liquid pump to use the sensed pressure to verify the existence of said flow set.

5. The flow set of claim 4, wherein each stretching key comprises a hoop that is clamped on the respective pumping tube segment and includes:

a. unique pattern to be inserted into a compatible recess in a specific liquid pump and prevents insertion of the flow set to a non compatible liquid pump;

b. connection to the pumping tube-segment in a determined distance from clamping of the identifying key to said pumping tube-segment.

6. The disposable flow set of claim 4, wherein at least one identifying key is clamped to the pumping tube-segment at a distance between 45 millimeter and 47 millimeter from at least one stretching key clamped also to that pumping tube-segment.

7. The disposable flow set of claim 4, where the identifying key teeth arrangement corresponds to niches arrangement on the liquid pump.

8. The disposable flow set of claim 4, where stretching key is ring shaped in order to allow detection of air in pumping tube-segment by a liquid pump air detector through a hole in the stretching key.

9. The disposable flow set of claim 4, where stretching key is of a size and shape that prevents a door to the liquid pump from closing if said stretching key is not placed in the liquid pump recess.

10. The disposable flow set of claim 4, where identifying key is of a size and shape that prevents a door to the liquid pump from closing if said identifying key is not placed in the liquid pump niches.

11. The disposable flow set of claim 4, where identifying key is pressed towards the liquid pump pressure sensor, in order to verify by the liquid pump software that a door of the liquid pump is closed and pumping tubing-segment is present.

12. The disposable flow set of claim 4, where a stretching key centers the pumping tube segment in front of an air sensor detector of the liquid pump to assure optimal air detection in the pumping tube-segment.

13. The disposable flow set of claim 4, wherein the inside diameter of the pumping tube-segment of the disposal flow set is between 2 millimeter and 4 millimeter.

14. The disposable flow set of claim 4, wherein at least one air sensor detector of the liquid pump is positioned behind the stretching key when that key is installed in the liquid pump.

15. The disposable flow set of claim 4, wherein at least one air sensor detector of the liquid pump is positioned in front of the stretching key when that key is installed in the liquid pump.

16. The disposable flow set of claim 4, further comprising:

a controlling means in the inlet of the drip chamber, enabling the control of the volume of the entering drops.

17. A disposable flow set comprising:

(a) a drip chamber;

(b) a first administration tube to administer liquid from said drip chamber;

(c) at least one pumping tube-segment, connected to the first administration tube, enabling said flow set to be installed in a liquid pump;

(d) a second administration tube installed at the end of the last one of said pumping tube-segment;

(e) an anti free flow valve installed on the second administration tubing;

(f) at least one identifying key, whereby the at least one pumping tube-segment has a respective identifying-key connected thereto; and

(g) at least one stretching key, whereby the at least one pumping tube-segment has a respective stretching key connected thereto.

18. The disposable flow set of claim 17, wherein each identifying-key comprises a hoop that is clamped on said respective tube-segment and includes:

a. a number of teeth with a unique combination of location and width, said teeth are to be inserted into a compatible niches in a specific liquid pump and prevent insertion of said flow set to a non compatible liquid pump; and

b. a pressing-plate in order to allow said pumping tube-segment to be pressed against a pressure sensor of said liquid pump enabling said liquid pump to use the sensed pressure to verify the existence of said flow set.

19. The flow set of claim 17, wherein each stretching key comprises a hoop that is clamped on the respective pumping tube segment and includes:

a. unique pattern to be inserted into a compatible recess in a specific liquid pump and prevents insertion of the flow set to a non compatible liquid pump;

b. connection to the pumping tube-segment in a determined distance from clamping of the identifying key to said pumping tube-segment.

20. A disposable flow set comprising:

(a) a spike;

(b) a first administration tube to administer liquid from said spike;

(c) at least one pumping tube-segment, connected to the first administration tube, enabling said flow set to be installed in a liquid pump;

(d) a second administration tube installed at the end of the last one of said pumping tube-segment;

(e) an anti free flow valve installed on the second administration tubing; and

(f) at least one identifying key, whereby the at least one pumping tube-segment has a respective identifying-key connected thereto.