Cartridge for storing dry analytical film chips

• US 5,538,688 A
• Filed: 04/20/1993
• Issued: 07/23/1996
• Est. Priority Date: 04/20/1992
• Status: Expired due to Term

• Current Assignee: Fuji Photo Film Co Limited (Fujifilm Holdings Corporation)
• Original Assignee: Fuji Photo Film Co Limited (Fujifilm Holdings Corporation)
• Inventors: Abe, Yoshihiko, Seshimoto, Osamu, Tezuka, Shigeru, Fujisaki, Yasushi, Tsuruta, Hikaru
• Primary Examiner(s): Warden, Robert J.
• Assistant Examiner(s): BHAT, NINA NMN
• Application Number:
  US08/051,037
• Time in Patent Office: 1,190 Days
• Field of Search: 422/102, 422/64, 422/65
• US Class Current: 422/64
• CPC Class Codes: G01N 2035/00089 Magazines
• CPC Class Codes: G01N 2035/00108 Test strips, e.g. paper
• CPC Class Codes: G01N 2035/00752 bar codes
• CPC Class Codes: G01N 2035/00762 magnetic code
• CPC Class Codes: G01N 35/00029 provided with flat sample substrates, e.g. slides G01N35/028 takes precedence
• CPC Class Codes: G01N 35/00732 Identification of carriers, materials or components in automatic analysers

Abstract

A cartridge for storing a plurality of stacked chips having an exit for taking out the end dry analytical film chip one by one which are pushed toward the exit, and a flexible engager for inhibiting the discharge of the end chip. The exit and the engager are provided at an end portion of a side wall of the casing, the opening being provided at an end of the casing, and the flexible engager has a strength capable of releasing the end chip from the conveyor but is also capable of holding the second end, wherein the exit and the engager are provided at an end portion of a side wall of the casing, the opening being provided at an end of the casing. The engager is capable of holding the second end chip, or wherein the exit and the engager are provided at an end portion of the casing, and the engager is a non-flexible engager for releasing the end chip by its deformation occurring by the pull of the conveyor through the second end through the release of the lowermost end chip, and the exit also functions as the opening. The cartridge has a compact size and ejects only one chip while preventing the simultaneous ejection of two chips.

Claims

1. A cartridge for storing dry analytical film chips which comprises:

a casing wherein a plurality of the dry analytical film chips without a slide frame having at least one reagent layer provided on a support are stacked;

an exit for taking out the lowermost dry analytical film chip of the stack one by one;

urging means for pushing the dry analytical film chip stack without the slide frame toward the exit;

engaging means for inhibiting the discharge in a lateral direction of the lowermost dry analytical film chip of the stack from the casing; and

conveying means for the dry analytical film chip, and an opening for passing the conveying means of the dry analytical film chip to be taken out through said opening;

wherein;

the exit and the engaging means for inhibiting the discharge of the lowermost dry analytical film chip are provided at the lower end portion of one side wall of the casing, and said casing including a second closed side wall opposite to said one side wall provided with said exit;

the opening being provided at the bottom of the casing; and

the engaging means for inhibiting the discharge of the lowermost dry analytical film chip is a flexible engaging means comprising tongue portions for releasing the lowermost dry analytical film chip when it is discharged by the conveying means and holding the second lowermost dry analytical film chip whereby the dry analytical film chip is taken out of the cartridge from the underside thereof.

2. The cartridge of claim 1, wherein the tongue portions have a form selected from the group consisting of a tongue, a squamation, an inverted triangle and a wedge.

3. The cartridge of claim 1, wherein the flexible engaging means is composed of loops or straight lines of an elastic single fiber.

4. The cartridge of claim 1, wherein the casing has an inside diameter slightly greater than the dry analytical film chips stacked having a side or diameter of 8 to 20 mm.

5. The cartridge of claim 1, wherein the tongue portions have an inverted U form or II form.

6. The cartridge of claim 5, wherein the tongue portions are positioned about 0.5 mm to 1 mm apart from the side edge of the dry analytical film chip toward the inside of the dry analytical film chip.

7. The cartridge of claim 1, wherein the tongue portions have a thickness smaller than the wall thickness, a maximum width of 1 to 3 mm and a length of 250 μ

m to 3 mm.

8. The cartridge of claim 1, wherein the conveying means is a suction pad.

9. A cartridge for storing dry analytical film chips which comprises:

a casing wherein a plurality of the dry analytical film chips having at least one reagent layer provided on a support are stacked;

an exit for taking out the lowermost dry analytical film chip of the stack one by one;

urging means for pushing the dry analytical film chip stack toward said exit;

engaging means for inhibiting the discharge of the lowermost dry analytical film chip of the stack from said casing; and

an opening for passing the conveying means of the dry analytical film chip to be taken out;

wherein;

the exit and the engaging means for inhibiting the discharge of the lowermost dry analytical film chip are provided at an end portion of a first side wall of said casing and said casing having a second side wall opposite to said first side wall, said second side wall being closed;

said opening being provided at the bottom of the casing;

the engaging means for inhibiting the discharge of the lowermost dry analytical film chip is composed of tongue portions defining flexible engaging means for the lowermost film chip for releasing the lowermost dry analytical film chip by the conveying means so that the dry analytical film chip is taken out from the underside of said cartridge; and

additional flexible engaging means for holding the second lowermost dry analytical film chip.

10. The cartridge of claim 9, wherein said additional flexible engaging means holds the second end dry analytical film chip when the end dry analytical film chip is discharged.

11. The cartridge of claim 9, wherein the lower end of the engaging means holding the second end dry analytical film chip is positioned between the upper side and the underside of the second lowermost dry analytical film chip and has a rigidity for keeping it.

12. The cartridge of claim 9, wherein the casing has an inside diameter slightly greater than the dry analytical film chips stacked having a side or diameter of 8 to 20 mm.

13. The cartridge of claim 9, wherein the tongue portions have an inverted U form or II form and the engaging means capable of holding the second end dry analytical film chip is positioned between the tongue portions.

14. The cartridge of claim 13, wherein the tongue portions are positioned about 0.5 mm to 1 mm apart from the side edge of the dry analytical film chip toward the inside of the dry analytical film chip.

15. The cartridge of claim 9, wherein the tongue portions have a thickness smaller than the wall thickness, a maximum width of 1 to 3 mm and a length of 250 μ

m to 3 mm.

16. The cartridge of claim 9, wherein the conveying means is a suction pad.

17. A cartridge for storing dry analytical film chips free of any slide frame which comprises:

a casing wherein a plurality of the frameless dry analytical film chips having at least one reagent layer provided on a support are stacked;

an exit for taking out the lowermost dry analytical film chip of the stack one by one;

urging means for pushing the dry analytical film chip stack toward said exit;

engaging means for inhibiting the discharge of the lowermost dry analytical film chip of the stack from said casing in a horizontal direction;

suction conveying means for the frameless dry analytical film chips; and

an opening for passing the suction conveying means of the dry analytical film chip to be taken out;

wherein;

the exit and the engaging means for inhibiting the discharge of the lowermost dry analytical film chip are provided at an end portion of a first side wall of said casing and said casing having a second side wall opposite to said first side wall, said second side wall being closed;

said opening being provided at the bottom of the casing;

the engaging means for inhibiting the discharge of the lowermost dry analytical film chip is composed of tongue portions defining flexible engaging means for the lowermost film chip for releasing the lowermost dry analytical film chip by the suction conveying means so that the frameless dry analytical film chip is taken out from the underside of said cartridge; and

additional flexible engaging means for holding the second lowermost frameless dry analytical film chip.

18. The cartridge of claim 17, wherein the tongue portions are positioned about 0.5 mm to 1 mm apart from a side edge of the frameless dry analytical film chip toward the inside of the dry analytical film chip.

19. The cartridge of claim 17, wherein the tongue portions have a thickness smaller than the wall thickness, a maximum width of 1 to 3 mm and a length of 250 μ

m to 3 mm.

20. The cartridge of claim 17, wherein the suction conveying means is a suction pad.

21. The cartridge of claim 17, wherein the casing has an inside diameter slightly greater than the dry analytical film chips stacked having a side or diameter of 8 to 20 mm.

22. The cartridge of claim 17, wherein the tongue portions have an inverted U form or II form and the engaging means capable of holding the second end dry analytical film chip is positioned between the tongue portions.

23. The cartridge of claim 17, wherein the lower end of the engaging means holding the second end dry analytical film chip is positioned between the upper side and the underside of the second lowermost dry analytical film chip and has a rigidity for keeping it.