Patent US3882852A successfully refreshed from Google Patents.
US3882852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical dilators having insufflating means
Assignee: Individual
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Filing: 1974-01-11
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Granted: 1975-05-13
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Expires: 1994-01-11
Abstract
Abstract Surgical instrments for obstretical use including a first device for dilating the cervical neck, and a second defice for dilating the uterus. Each device includes a relatively rigid element surrounded by a pneumatically inflatable element, the rigid element projecting through the inflatable element to permit complete dilation and the performance of surgical procedures through a longitudinally extending bore in the rigid element. The invention may be incorporated into known endoscope constructions, and permits the controlled expansion of the cavity being expanded to the degree required. One embodiment of the invention is suitable for use in creating a pneumoperitoneum, and offers added safety by confining the inflating gas to the interior of the inflatable element.
Inventors
- 👤 Manfred Sinnreich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:03
CPC Classifications
A; A61; A61M; A61M29/00; A61M29/02; A61M25/00; A61M25/10; A61M2025/1043; A61M2025/1093
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
151 words
A combination surgical dilating and endoscopic device comprising: a rigid shaft element having proximal and distal ends bordering an outer surface, an expandable element surrounding said shaft element and secured to said outer surface, means supplying an inflating medium to said expandable element communicating therewith, and means for determining the degree of inflation of said inflatable element, said shaft element penetrating said inflatable element and defining a longitudinal bore extending substantailly the length thereof; and an endoscopic element having an elongated Barrel within the bore of said rigid shaft element and capable of longitudinal movement relative thereto; whereby said device may be inserted into a body opening to a position in which said inflatable element is positioned within a body cavity, following which said expandable element is expanded to correspondingly expand said body cavity, and said endoscope is manipulated relative to said rigid shaft element to perform a required surgical function.
Claim 2
Dependent Claim
151 words
A combination surgical dilating and endoscopic device comprising: a rigid shaft element having proximal and distal ends bordering an outer surface, an expandable element surrounding said shaft element and secured to said outer surface, means supplying an inflating medium to said expandable element communicating therewith, and means for determining the degree of inflation of said inflatable element, said shaft element penetrating said inflatable element and defining a longitudinal bore extending substantailly the length thereof; and an endoscopic element having an elongated Barrel within the bore of said rigid shaft element and capable of longitudinal movement relative thereto; whereby said device may be inserted into a body opening to a position in which said inflatable element is positioned within a body cavity, following which said expandable element is expanded to correspondingly expand said body cavity, and said endoscope is manipulated relative to said rigid shaft element to perform a required surgical function.
Claim 3
Dependent Claim
16 words
Structure in accordance with claim 1 in which said expandable element is of generally cylindrical configuration.
Claim 4
Dependent Claim
30 words
Structure in accordance with claim 1 in which said expandable element is of frusto-conical configuration with the wider portion thereof located at the distal end of said rigid shaft element.
Claim 5
Dependent Claim
15 words
Structure in accordance with claim 1 in which said expandable element is of spherical configuration.
Claim 6
Dependent Claim
24 words
Structure in accordance with claim 1, in which said means for determining the degree of inflation of said expandable element includes a pressure gauge.
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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) | 1978-05-12 | 1978-11-11 | 1979-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-12 | 1982-11-11 | 1983-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-12 | 1986-11-11 | 1987-05-13 | $7700.00 | Window Closed / Lapsed |