Patent US3895632A successfully refreshed from Google Patents.
US3895632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trocar catheter
Assignee: Technological Supply SA
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Filing: 1974-02-11
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Granted: 1975-07-22
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Expires: 1994-02-11
Abstract
Abstract The catheter of a trocar is provided with a moulded connector having a chamber in which a hollow cylindrical valve is rotatable. A flexible extension of the valve serves to obturate an inlet to the chamber and the insertion of a needle serves to deflect the extension so that it can pass through the inlet and out through an opposite outlet and thence through the attached catheter.
Inventors
- 👤 Leopold Plowiecki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:40
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/14; F16K15/16; A; A61; A61M; A61M39/00; A61M39/02; A61M39/06; A61M39/22; A61M39/24; F16K5/00; F16K5/04; A61M2039/062; A61M2039/0626; A61M2039/0633; A61M2039/242; A61M2039/2433; A61M2039/244; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7879; Y10T137/7888
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
191 words
An intravenous catheter and terminal connector therefor having a longitudinal axis, said connector having a chamber transversely disposed to the longitudinal axis, said chamber having a single inlet in one wall of the chamber and a single outlet in an opposite wall of the chamber, and an obturating plug rotatably disposed in said chamber to control the inlet and outlet, the improvement comprising a flexible extension integrally formed on a lower portion of said plug and being rotated therewith between operative and intermediate positions, said flexible extension being rotated with said plug to its intermediate position between the said one wall and the said opposite wall of the chamber whereby a liquid may flow through the chamber, said flexible extension abutting said one wall to cover the inlet when in its operative position to prevent a reverse flow of liquid through the inlet, said flexible extension being deflected away from said one wall by liquid passing through the inlet and by a member inserted through the inlet, and said inlet and outlet being in alignment with said longitudinal axis whereby the member may be inserted therethrough and protrude through the catheter.
Claim 2
Dependent Claim
191 words
An intravenous catheter and terminal connector therefor having a longitudinal axis, said connector having a chamber transversely disposed to the longitudinal axis, said chamber having a single inlet in one wall of the chamber and a single outlet in an opposite wall of the chamber, and an obturating plug rotatably disposed in said chamber to control the inlet and outlet, the improvement comprising a flexible extension integrally formed on a lower portion of said plug and being rotated therewith between operative and intermediate positions, said flexible extension being rotated with said plug to its intermediate position between the said one wall and the said opposite wall of the chamber whereby a liquid may flow through the chamber, said flexible extension abutting said one wall to cover the inlet when in its operative position to prevent a reverse flow of liquid through the inlet, said flexible extension being deflected away from said one wall by liquid passing through the inlet and by a member inserted through the inlet, and said inlet and outlet being in alignment with said longitudinal axis whereby the member may be inserted therethrough and protrude through the catheter.
Claim 3
Dependent Claim
20 words
An intravenous catheter and terminal connector therefor according to claim 1, wherein the connector is integrally moulded onto the catheter.
Claim 4
Dependent Claim
49 words
An intravenous catheter and terminal connector therefor to claim 1, wherein the connector has an end portion adjacent said inlet and a bushing seals said end portion, and wherein said member comprises a perfusion needle centrally mounted in said bushing so as to be connectable to a liquid supply.
Claim 5
Dependent Claim
57 words
An intravenous catheter and terminal connector therefor according to claim 1, wherein the obturating plug comprises a hollow cylinder of flexible resilient material including a head with a transversE slot, the end of the cylinder opposite to the head carrying said flexible extension which takes the form of a prolongation of a part of the cylinder wall.
Claim 6
Dependent Claim
35 words
An intravenous catheter and terminal connector therefore to claim 4, comprising a cap mounted on the hollow cylinder, said cap having a ridge engaging in the slot of the plug head to rotate the plug.
Claim 7
Dependent Claim
55 words
An intravenous catheter and terminal connector therefor to claim 5, wherein the cap has an internal groove and the cylinder has an external ridge, the groove and the ridge being so disposed that when the cap is forced on to the cylinder, the ridge snaps into the groove to retain the cap on the cylinder.
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) | 1978-07-21 | 1979-01-20 | 1979-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-21 | 1983-01-20 | 1983-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-21 | 1987-01-20 | 1987-07-22 | $7700.00 | Window Closed / Lapsed |