Liquid test sample injection device and kits and methods of use related thereto

Patent metadata

Field	Value
Publication number	US-10928410-B2
Application number	US-201815970272-A
Country	US
Kind code	B2
Filing date	May 3, 2018
Priority date	May 4, 2017
Publication date	Feb 23, 2021
Grant date	Feb 23, 2021

Abstract

Devices, kits, and methods related to embodiments of an improved liquid test sample injection device for use in diagnostic assays.

First claim

What is claimed is:

1. A liquid test sample injection device for injecting a liquid test sample into a reaction vessel for use in an automated diagnostic assay system, the liquid test sample injection device comprising:
a plunger, the plunger comprising a plunger body;
an injection body, the injection body comprising at least one side and a plunger receptacle configured to receive the plunger, the plunger receptacle comprising a receptacle wall having at least one side, a first end, a second end, and a bore longitudinally extending from the first end to the second end of the receptacle wall, the receptacle wall of the plunger receptacle further comprising at least one inlet and at least one outlet, the at least one inlet and the at least one outlet laterally extending between the at least one side of the injection body and the at least one side of the receptacle wall of the plunger receptacle, and wherein the injection body is configured to be secured within the reaction vessel such that the at least one inlet and the at least one outlet are substantially flush with at least one internal wall of the reaction vessel;
a capillary for collecting a patient's liquid test sample via capillary action and injecting the patient's liquid test sample into the reaction vessel for the conductance of at least one diagnostic assay, wherein a portion of the capillary is disposed through the second end of the receptacle wall of the plunger receptacle; and
a plug, the plug being disposed within the bore such that when the plunger is inserted into the plunger receptacle, the plug remains in the bore and does not contact the capillary or the second end of the injection body, whereby the plug forms a substantially air-tight seal between the plunger body and the at least one side of the receptacle wall of the plunger receptacle.

2. The liquid test sample injection device of claim 1 , wherein the patient's liquid test sample is selected from the group consisting of whole blood and urine.

3. The liquid test sample injection device of claim 1 , wherein the plug comprises a petroleum jelly.

4. The liquid test sample injection device of claim 1 , wherein the at least one diagnostic assay is selected from the group consisting of a glycated hemoglobin diagnostic assay and a creatinine diagnostic assay.

5. The liquid test sample injection device of claim 1 , wherein the injection body and capillary are constructed of high-density polyethylene.

6. A liquid test sample injection device for injecting a liquid test sample into a reaction vessel for use in an automated diagnostic assay system, the liquid test sample injection device comprising:
a plunger, the plunger comprising a plunger body;
an injection body, the injection body comprising at least one side and a plunger receptacle configured to receive the plunger, the plunger receptacle comprising a receptacle wall having at least one side, a first end, a second end, and a bore longitudinally extending from the first end to the second end of the receptacle wall, the receptacle wall of the plunger receptacle further comprising a single channel laterally extending between the at least one side of the injection body and the at least one side of the receptacle wall of the plunger receptacle, and wherein the injection body is configured to be secured within the reaction vessel such that the single channel is substantially flush with at least one internal wall of the reaction vessel;
a capillary for collecting a patient's liquid test sample via capillary action and injecting the patient's liquid test sample into the reaction vessel for the conductance of at least one diagnostic assay, wherein a portion of the capillary is disposed through the second end of the receptacle wall of the plunger receptacle; and
a plug, the plug being disposed within the bore such that when the plunger is inserted into the plunger receptacle, the plug remains in the bore and does not contact the capillary or the second end of the injection body, whereby the plug forms a substantially air-tight seal between the plunger body and the at least one side of the receptacle wall of the plunger receptacle.

7. The liquid test sample injection device of claim 6 , wherein the patient's liquid test sample is selected from the group consisting of whole blood and urine.

8. The liquid test sample injection device of claim 6 , wherein the plug comprises a petroleum jelly.

9. The liquid test sample injection device of claim 6 , wherein the at least one diagnostic assay is selected from the group consisting of a glycated hemoglobin diagnostic assay and a creatinine diagnostic assay.

10. The liquid test sample injection device of claim 6 , wherein the injection body and capillary are constructed of high-density polyethylene.

11. A liquid test sample injection device for injecting a liquid test sample into a reaction vessel for use in an automated diagnostic assay system, the liquid test sample injection device comprising:
a plunger, the plunger comprising a plunger body;
an injection body, the injection body comprising a plunger receptacle configured to receive the plunger, the plunger receptacle comprising a receptacle wall having at least one side, a first end, a second end, and a bore longitudinally extending from the first end to the second end of the receptacle wall, and wherein the injection body is configured to be secured within the reaction vessel;
a capillary for collecting a patient's liquid test sample via capillary action and injecting the patient's liquid test sample into the reaction vessel for the conductance of at least one diagnostic assay, wherein a portion of the capillary is disposed through the second end of the receptacle wall of the plunger receptacle; and
a plug, the plug being disposed within the bore such that when the plunger is inserted into the plunger receptacle, the plug remains in the bore and does not contact the capillary or the second end of the injection body, whereby the plug forms a substantially air-tight seal between the plunger body and the at least one side of the receptacle wall of the plunger receptacle.

12. The liquid test sample injection device of claim 11 , wherein the patient's liquid test sample is selected from the group consisting of whole blood and urine.

13. The liquid test sample injection device of claim 11 , wherein the plug comprises a petroleum jelly.

14. The liquid test sample injection device of claim 11 , wherein the at least one diagnostic assay is selected from the group consisting of a glycated hemoglobin diagnostic assay and a creatinine diagnostic assay.

15. The liquid test sample injection device of claim 11 , wherein the injection body and capillary are constructed of high-density polyethylene.

16. An assembly, comprising:
a reaction vessel for use in an automated diagnostic assay system, the reaction vessel comprising a reaction chamber with at least one reaction pad disposed therein;
the liquid test sample injection device of claim 11 secured within the reaction chamber of the reaction vessel; and
wherein the liquid test sample injection device is configured to inject liquid test sample from the capillary thereof onto the at least one reaction pad of the reaction vessel for conductance of at least one diagnostic assay.

17. The assembly of claim 16 , wherein the patient's liquid test sample is selected from the group consisting of whole blood and urine.

18. The assembly of claim 16 , wherein the plug of the liquid test sample injection device comprises a petroleum jelly.

19. The assembly of

Assignees

• Siemens Healthcare Diagnostics Inc

Inventors

• Kauffmann Aaron

Classifications

• B01L3/022 Primary

  Capillary pipettes, i.e. having very small bore (B01L3/0224 - B01L3/0237 take precedence) · CPC title

• B01L2400/0478

  pistons · CPC title

• B01L2300/0832

  cylindrical, tube shaped · CPC title

• B01L2300/048

  enabling gas exchange, e.g. vents · CPC title

• B01L2300/0838

  Capillaries · CPC title