US4355113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Over the counter swab kit for self detection of gonorrhea in the male using saline ampule
Assignee: Individual
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Filing: 1981-06-19
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Granted: 1982-10-19
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Expires: 2001-06-19
Abstract
Abstract An over the counter swab kit for self detection of gonorrhea in the male using saline ampul. A method wherein a pledget in the form of fibrous material is impregnated with a compound which reacts with Neisseria gonorrhea to produce a color change. The pledget, before the test, is in a dry condition and is activated by a wetting agent such as saline, when placed in contact with the pledget. The chemical compound used and incorporated into the pledget is selected from a group consisting of phenylenediamines. A sufficient amount of saline is held within a frangible ampul to wet the pledget and then to be drawn by capillary action through the swab on which a sample of exudate as a specimen is placed. The chemical compound is in the form of a mineral acid salt which dissolves in the saline and is transported by capillary action through the pledget into the swab. A purple color is created on the tip of the swab at the site of the bacteria and is a positive test for gonorrhea. There is also disclosed a novel method for the manufacture of the novel swab kit for self detection of gonorrhea in the male.
Inventors
- 👤 Frederick C. Mennen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:33
CPC Classifications
C; C12; C12Q; C12Q1/00; C12Q1/02; C12Q1/04; C12Q1/12; C12M; C12M23/00; C12M23/32; A; A61; A61B; A61B10/00; A61B2010/0003; A61B2010/0006; B; B01; B01L; B01L3/00; B01L3/50; B01L3/502; B01L3/5029; Y; Y10; Y10S; Y10S435/00; Y10S435/81; Y10S435/8215; Y10S435/822; Y10S435/871
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
216 words
A self-contained swab cartridge apparatus for the detection and diagnosis of living gonorrhea bacteria by chromogenic reaction with a substantially colorless phenylenediamine hydrochloride salt impregnated pledget without transport of said bacteria from the sampling swab used for collecting the sample comprising of exudate from the penis of the male, said apparatus comprising: a tubular flexible cartridge having a closed end and an open end holding a frangible ampul of sterile saline solution in a dosage volume sufficient to transport said chromogenic salt in solution; an ampul made of frangible material filled with a unit dosage of about 1 milliliter of sterile saline for transporting said chromogenic salt brought into solution; a pledget of fibrous material in the form of a wad containing said chromogenic salt between said ampul and said swab; a swab protruding from the open end of said cartridge; and indented holding means on said cartridge adjacent said pledget to hold said pledget in contiguous relation to said swab whereby the exudate sampled on said swab is detected after the breaking of said ampul which dissolves said chromogenic salt contained on said pledget by said saline solution to permeate said swab and provide a color diagnosis within less than 3 minutes for the presence of endogenous cytochrome oxidase constituting the metabolite of Neisseria gonorrhea.
Claim 2
Dependent Claim
216 words
A self-contained swab cartridge apparatus for the detection and diagnosis of living gonorrhea bacteria by chromogenic reaction with a substantially colorless phenylenediamine hydrochloride salt impregnated pledget without transport of said bacteria from the sampling swab used for collecting the sample comprising of exudate from the penis of the male, said apparatus comprising: a tubular flexible cartridge having a closed end and an open end holding a frangible ampul of sterile saline solution in a dosage volume sufficient to transport said chromogenic salt in solution; an ampul made of frangible material filled with a unit dosage of about 1 milliliter of sterile saline for transporting said chromogenic salt brought into solution; a pledget of fibrous material in the form of a wad containing said chromogenic salt between said ampul and said swab; a swab protruding from the open end of said cartridge; and indented holding means on said cartridge adjacent said pledget to hold said pledget in contiguous relation to said swab whereby the exudate sampled on said swab is detected after the breaking of said ampul which dissolves said chromogenic salt contained on said pledget by said saline solution to permeate said swab and provide a color diagnosis within less than 3 minutes for the presence of endogenous cytochrome oxidase constituting the metabolite of Neisseria gonorrhea.
Claim 3
Dependent Claim
30 words
A swab apparatus as claimed in claim 1 including a cover for said swab which fits over said cartridge and which is retained to keep the swab free from contamination.
Claim 4
Dependent Claim
25 words
A swab apparatus as claimed in claim 2 wherein said pledget is formed of cotton and is impregnated with 1% N, N, N' N'-tetramethyl-p-phenylenediamine dihydrochloride.
Claim 5
Dependent Claim
32 words
A swab apparatus as claimed in claim 3 wherein said hydrochloride is dissolved in water to form a 1% solution and impregnates said pledget to form a substantially color-free wad after drying.
Claim 6
Dependent Claim
46 words
A swab apparatus as claimed in claim 4 wherein said cartridge is formed of a transparent thermoplastic material and said indented holding means is a groove formed by heating said cartridge immediately below said pledget to thereby retain said pledget in contiguous relation to said swab.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-10-18 | 1986-04-19 | 1986-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-18 | 1990-04-19 | 1990-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-18 | 1994-04-19 | 1994-10-19 | $7700.00 | Window Closed / Lapsed |