Patent US4645487A successfully refreshed from Google Patents.
US4645487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for administering powdered substances
Assignee: VSESOJUZNY NAUCHNO ISSLEDOVATELSKY INSTITUT MEDITSINSKIKH POLIME
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Filing: 1984-06-05
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Granted: 1987-02-24
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Expires: 2004-06-05
Abstract
Abstract The device includes a sprayer of powdered substances having a conveying line which includes a coaxially arranged drain pipe and a catheter. The sprayer includes a piston with a valve and a cylindrical housing having a valve and a diametral partition with an opening. The partition divides the sprayer into a delivery portion and a spraying portion.
Inventors
- 👤 Nikolai M. Shishov
- 👤 Vladimir E. Zelenetsky
- 👤 Nadezhda A. Demina
- 👤 Ivan M. Bondarev
- 👤 Alexandr N. Cherny
- 👤 Anatoly G. Avxentiev
- 👤 Evgeny E. Rylov, deceased
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:46
CPC Classifications
B; B05; B05B; B05B11/00; B05B11/01; B05B11/06; B05B11/062
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
216 words
A device for administering powdered substances into deep-seated cavities of a patient's organism, said device comprising: a sprayer for spraying a powdered substance, a conveying line series-connected to said sprayer, said conveying line including a drain pipe and a catheter arranged coaxially inside of said drain pipe and adapted to be introduced into a deep-seated cavity of the patient's organism for spraying the powdered substance therein; said sprayer including a cylindrical housing; a diametral partition located in said cylindrical housing and having a first opening; said diametral partition dividing said cylindrical housing into a delivery portion and a spraying portion having an outlet opening; a piston located in said cylindrical housing being movable up and down along said cylindrical housing; a first valve mounted in said cylindrical housing; and a second valve mounted on said piston; a container for containing the powdered substance to be sprayed; said container mounted within said cylindrical housing and being spaced from said cylindrical housing to define a clearance; a second opening provided in said container and directed, upon mounting said container in said spraying portion, towards said conveying line, said second opening being coaxial with said conveying line for the delivery of powdered substance being sprayed to said catheter due to rarefaction developed at the outlet end of the sprayer.
Claim 2
Independent Claim
216 words
A device for administering powdered substances into deep-seated cavities of a patient's organism, said device comprising: a sprayer for spraying a powdered substance, a conveying line series-connected to said sprayer, said conveying line including a drain pipe and a catheter arranged coaxially inside of said drain pipe and adapted to be introduced into a deep-seated cavity of the patient's organism for spraying the powdered substance therein; said sprayer including a cylindrical housing; a diametral partition located in said cylindrical housing and having a first opening; said diametral partition dividing said cylindrical housing into a delivery portion and a spraying portion having an outlet opening; a piston located in said cylindrical housing being movable up and down along said cylindrical housing; a first valve mounted in said cylindrical housing; and a second valve mounted on said piston; a container for containing the powdered substance to be sprayed; said container mounted within said cylindrical housing and being spaced from said cylindrical housing to define a clearance; a second opening provided in said container and directed, upon mounting said container in said spraying portion, towards said conveying line, said second opening being coaxial with said conveying line for the delivery of powdered substance being sprayed to said catheter due to rarefaction developed at the outlet end of the sprayer.
Claim 3
Dependent Claim
33 words
A device as set forth in claim 1, further comprising ribs in the form of cross-shaped longitudinal plates provided on said piston of said sprayer, and a piston arrester attached to said ribs.
Claim 4
Dependent Claim
83 words
A device as set forth in claim 2, wherein said piston arrester comprises a first half-disk and a second half-disk identical with each other, at least one recess defined by said first half-disk and said second half-disk, at least one projection defined by said first half-disk and said second half-disk, the number of said projections corresponding to the number of said recesses, said recesses and said projections engaging each other to provide a rigid connection of said first half-disk and said second half-disk.
Claim 5
Dependent Claim
29 words
A device as set forth in claim 1, wherein said second valve is mounted on said piston end facing said diametral partition of said cylindrical housing of said sprayer.
Claim 6
Dependent Claim
52 words
A device as set forth in claim 1, wherein said spraying portion includes an inner surface spaced from an exterior surface of said container, and longitudinal ribs are attached to said inner surface to define said clearance between said container and said inner surface while accommodating said container in said spraying portion.
Claim 7
Dependent Claim
29 words
A device as set forth in claim 5, wherein said container for the powdered substance to be sprayed has a detachable sealed cover ensuring repeated use of said container.
Claim 8
Dependent Claim
30 words
A device as set forth in claim 1, wherein said catheter has one of its ends flared and connected to said outlet opening of said spraying portion of said sprayer.
Claim 9
Independent Claim
318 words
A device for administering powdered substances into deep-seated cavities of a patient's organism, said device comprising: a sprayer for spraying a powdered substance, a conveying line series-connected to said sprayer, said conveying line including a drain pipe and a catheter arranged coaxially inside of said drain pipe and adapted to be introduced into a deep-seated cavity of the patient's organism for spraying the powdered substance therein; said catheter having one of its ends flared; said sprayer including a cylindrical housing; a diametral partition located in said cylindrical housing and having a first opening; said diametral partition dividing said cylindrical housing into a delivery portion and a spraying portion provided with an outlet opening and longitudinal ribs attached to said cylindrical housing inside said spraying portion; said flared end of said catheter being coupled to said outlet opening of said spraying portion; a piston located in said cylindrical housing being movable up and down along said cylindrical housing and having ribs in the form of cross-shaped longitudinal plates; a piston arrester attached to said ribs; a first valve mounted in said cylindrical housing; a second valve mounted on said piston end facing said diametral partition; said piston arrester including a first half-disk and a second half-disk identical with each other, at least one recess defined by said first half-disk and said second half-disk, at least one projection defined by said first half-disk and said second half-disk, the number of said projections corresponding to the number of said recesses, said projections engaging said recesses to form a rigid connection of said first half-disk and said second half-disk; and a container for containing the powdered substance to be sprayed; said container having a shape corresponding to that of said inner surface of said spraying portion and mounted in said spraying portion spaced from said cylindrical housing to define a clearance between said inner surface of said spraying portion and said container.
Claim 10
Independent Claim
318 words
A device for administering powdered substances into deep-seated cavities of a patient's organism, said device comprising: a sprayer for spraying a powdered substance, a conveying line series-connected to said sprayer, said conveying line including a drain pipe and a catheter arranged coaxially inside of said drain pipe and adapted to be introduced into a deep-seated cavity of the patient's organism for spraying the powdered substance therein; said catheter having one of its ends flared; said sprayer including a cylindrical housing; a diametral partition located in said cylindrical housing and having a first opening; said diametral partition dividing said cylindrical housing into a delivery portion and a spraying portion provided with an outlet opening and longitudinal ribs attached to said cylindrical housing inside said spraying portion; said flared end of said catheter being coupled to said outlet opening of said spraying portion; a piston located in said cylindrical housing being movable up and down along said cylindrical housing and having ribs in the form of cross-shaped longitudinal plates; a piston arrester attached to said ribs; a first valve mounted in said cylindrical housing; a second valve mounted on said piston end facing said diametral partition; said piston arrester including a first half-disk and a second half-disk identical with each other, at least one recess defined by said first half-disk and said second half-disk, at least one projection defined by said first half-disk and said second half-disk, the number of said projections corresponding to the number of said recesses, said projections engaging said recesses to form a rigid connection of said first half-disk and said second half-disk; and a container for containing the powdered substance to be sprayed; said container having a shape corresponding to that of said inner surface of said spraying portion and mounted in said spraying portion spaced from said cylindrical housing to define a clearance between said inner surface of said spraying portion and said container.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-02-23 | 1990-08-25 | 1991-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-23 | 1994-08-25 | 1995-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-23 | 1998-08-25 | 1999-02-24 | $7700.00 | Window Closed / Lapsed |