US4228801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dilator for application in medical field
Assignee: Elektromedical Co SRL
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Filing: 1978-11-21
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Granted: 1980-10-21
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Expires: 1998-11-21
Abstract
Abstract A dilator for application in the medical field, comprises a hollow body made of an elastically deformable material and defining a cavity. Ducts hydropneumatically connect the cavity of the body to a source of pressurized fluid, valves controlling the hydropneumatical communication between the cavity and the source of pressure fluid and the outside. The body expands when positioned in situ and when in hydropneumatic communication with the source of pressurized fluid and being thereby effective to dilate the corporeal application field.
Inventors
- 👤 Dante Magnasco
- 👤 Livio Marinoni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:15
CPC Classifications
A; A61; A61M; A61M29/00; A61M29/02; A61M25/00; A61M25/10; A61M25/1018; A61M25/10184; A61M25/10185; A61M25/10186
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
187 words
A dilator for the application in medical field, comprising an at least partially hollow body made of an elastically deformable material and defining a cavity and having a distal and a proximal end thereof, duct means for hydropneumatically connecting the cavity of said body to a source of pressurized fluid, valve means for controlling the hydropneumatical communication between said cavity and said source and the outside, said body expanding when positioned in situ and when in hydropneumatic communication with said source of pressurized fluid and being thereby effective to dilate the corporeal application field and wherein said hollow body is an elongated body, said duct means include a substantially rigid tubular duct sealingly connected with one end thereof to said proximal end of said body, a control body connected to the other end of said substantially rigid tubular duct, quick release latching means for maintaining the connection between said control body and said substantially rigid tubular duct, said control body having connected therewith an inlet duct for the fluid under pressure and an outlet duct therefor and a slide distributor controlling the flow of pressurized liquid therethrough.
Claim 2
Dependent Claim
187 words
A dilator for the application in medical field, comprising an at least partially hollow body made of an elastically deformable material and defining a cavity and having a distal and a proximal end thereof, duct means for hydropneumatically connecting the cavity of said body to a source of pressurized fluid, valve means for controlling the hydropneumatical communication between said cavity and said source and the outside, said body expanding when positioned in situ and when in hydropneumatic communication with said source of pressurized fluid and being thereby effective to dilate the corporeal application field and wherein said hollow body is an elongated body, said duct means include a substantially rigid tubular duct sealingly connected with one end thereof to said proximal end of said body, a control body connected to the other end of said substantially rigid tubular duct, quick release latching means for maintaining the connection between said control body and said substantially rigid tubular duct, said control body having connected therewith an inlet duct for the fluid under pressure and an outlet duct therefor and a slide distributor controlling the flow of pressurized liquid therethrough.
Claim 3
Dependent Claim
32 words
A dilator according to claim 1, characterized in that it comprises an annular clamping strap for providing connection between said substantially rigid tubular duct and said proximal end of said dilator body.
Claim 4
Dependent Claim
52 words
A dilator according to claim 1, characterized in that said tubular duct has at the end thereof remote from the end connected to said body an embossment connected to said tubular duct through a conical shoulder wherein a ball actuated by said quick release latching means is adapted to engage for connection.
Claim 5
Dependent Claim
86 words
A dilator according to claim 1, characterized in that said slide distributor defines a delivery canalization therein in communication with said inlet duct and said tubular duct, as well as a discharge canalization in communication with said outlet duct, there being further provided a slide member movable from a first position where said slide member blocks the communication between said delivery canalization and said discharge canalization, to a second position where said slide member puts said delivery canalization into communication with said discharge canalization, and viceversa.
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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) | 1983-10-21 | 1984-04-21 | 1984-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-21 | 1988-04-21 | 1988-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-21 | 1992-04-21 | 1992-10-21 | $7700.00 | Window Closed / Lapsed |