Biological fluid measuring device
First Claim
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1. A biological fluid measuring device comprising:
- (a) a main housing including electronic circuit means and at least two electrodes; and
(b) a cartridge having a membrane and being removably mounted on the housing with the membrane operably associated with the electrodes, the cartridge including means for protecting the membrane when not in use.
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Abstract
A biological fluid measuring device for determining the presence and the amounts of substances in a biological fluid without the need for dilution of the fluid comprises a main housing including electronic circuit means and at least one elecrode, and a cartridge having a membrane. The cartridge is removably mounted on the housing and the membrane is operably associated with the electrode. The cartridge also includes means for protecting the membrane when the device is not in use.
1434 Citations
29 Claims
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1. A biological fluid measuring device comprising:
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(a) a main housing including electronic circuit means and at least two electrodes; and (b) a cartridge having a membrane and being removably mounted on the housing with the membrane operably associated with the electrodes, the cartridge including means for protecting the membrane when not in use. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A biological fluid measuring device comprising:
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(a) a case having an upper portion and a lower portion together defining a cavity, the upper portion also defining a recessed cell having a base surface; (b) at least two electrodes mounted on the upper portion of the case and extending upwardly from the base surface; (c) electronic circuit means carried by the case within the cavity and operably associated with the electrodes for processing a signal from the electrodes; (d) display means carried by the case and operably associated with the electronic circuit means for displaying a result; and (e) a cartridge having a body portion defining a receiving surface, the cartridge also including a membrane mounted on the receiving surface and a cover movably mounted on the body portion, the body portion being removably mounted in the recessed cell of the upper portion of the case with the membrane operably associated with the electrodes. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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22. A biological fluid measuring device comprising:
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(a) a case defining a cavity; (b) at least two electrodes mounted on the case; (c) electronic circuit means carried in the cavity and operably associated with the electrodes for processing a signal from the electrodes; (d) display means carried by the case and operably associated with the electronic circuit means; (e) a body portion defining an opening being removably mounted on the case; (f) a membrane mounted on the body portion and being operably associated with the electrodes, the membrane and opening together defining a well; and (g) a cover movably mounted on one of the case and body portion, the cover having a first position which permits access to the well and a second position which protects the well from the ambient surroundings. - View Dependent Claims (23)
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24. A cartridge for use as part of a biological fluid measuring device having a housing carrying electronic circuit means and at least two electrodes, the cartridge comprising:
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(a) a body portion having a side wall defining an opening; (b) a membrane mounted on the body portion across the opening, whereby the sidewall and membrane together define a well; (c) means for mounting the body portion on the housing with the membrane operably associated with the electrodes; and (d) a cover movably mounted on the body portion and having a first position which permits access to the well and the second position which protects the well from the ambient surroundings. - View Dependent Claims (25, 26, 27, 28, 29)
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Specification