US4210147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Head tourniquet having incision closing capability
Assignee: Nestor Engineering Associates Inc
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Filing: 1978-06-19
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Granted: 1980-07-01
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Expires: 1998-06-19
Abstract
Abstract A head encircling tourniquet comprises a frame section for surrounding a work area of the scalp connected to an opposing pneumatic pressure applying section by a pair of headsize adjustable members. The frame section has a scalp contacting, uniform pressure applying, liner and is formed with a relatively large central opening providing access to the work area while the frame section and liner controls hemostasis in the work area by pressure exerted by the pneumatic section. Opposite elongated longitudinal sides of the frame and liner are resiliently movable toward each other to close an incision or wound located in the work area for suturing while the tourniquet remains in operative position on the head.
Inventors
- 👤 Jack Nestor
- 👤 John W. Devine, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:40
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/132
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
185 words
A tourniquet for controlling hemostasis in a predetermined area of the scalp formed as a head encircling band comprising two flexible non-fabric plate members, each having a firmness for maintaining a predetermined substantially configuration, said plate members being arranged opposite each other and interconnected at opposite ends thereof by a pair of circumference size-adjusting means, a first of said plate members forming a backing and support for an air bladder having an air pressure gauge and valved, hand operated air pump bulb, the second of said plate members being formed as a frame having a large center opening, and a firm flexible and resilient rubber pad liner having a center opening conforming to said frame center opening, said liner being attached to the interior side of said frame with said frame and liner openings in register to provide a window exposing said predetermined scalp area, said plate member flexibility and firmness enabling said frame and liner to conform to the contour of the head for applying a substantially uniform hemostatic pressure to the periphery of said scalp area by pressure exerted by said air bladder.
Claim 2
Dependent Claim
185 words
A tourniquet for controlling hemostasis in a predetermined area of the scalp formed as a head encircling band comprising two flexible non-fabric plate members, each having a firmness for maintaining a predetermined substantially configuration, said plate members being arranged opposite each other and interconnected at opposite ends thereof by a pair of circumference size-adjusting means, a first of said plate members forming a backing and support for an air bladder having an air pressure gauge and valved, hand operated air pump bulb, the second of said plate members being formed as a frame having a large center opening, and a firm flexible and resilient rubber pad liner having a center opening conforming to said frame center opening, said liner being attached to the interior side of said frame with said frame and liner openings in register to provide a window exposing said predetermined scalp area, said plate member flexibility and firmness enabling said frame and liner to conform to the contour of the head for applying a substantially uniform hemostatic pressure to the periphery of said scalp area by pressure exerted by said air bladder.
Claim 3
Dependent Claim
49 words
The tourniquet defined in claim 1 in combination with a removable rubber pad fitted to said window for application of manual pressure to said predetermined area of the scalp to drain the blood therefrom preparatory to applying pressure to the frame and liner by inflation of said air bladder.
Claim 4
Dependent Claim
26 words
The tourniquet and rubber pad defined in claim 2 in which said rubber pad is the portion removed from said liner in forming said liner opening.
Claim 5
Dependent Claim
50 words
The tourniquet defined in claim 1 in which said frame and liner have opposite longitudinal frame portions, the latter being deflectable toward each other when said tourniquet is in operative position on a patient's head whereby the underlying scalp is moved to close an incision in said predetermined scalp area.
Claim 6
Dependent Claim
40 words
The tourniquet defined in claim 1 in which said second plate member and each of said size-adjusting means is pivotally connected enabling the second plate member to swingably adjust with respect to the longitudinal axis of said first plate member.
Claim 7
Dependent Claim
96 words
The tourniquet defined in claim 1 in which each of said size-adjusting means comprises an adjustable length strip element connected to an end of said first plate member having worm gear engaging spaced transverse slots, a fixed length strip element pivotally mounted to an end of said second plate member, a worm gear assembly mounted on a free end of said fixed length strip element engaging and feeding therethrough said adjustable length strip element, said worm gear assembly including a worm gear having a manipulatable head with manual tool engaging means facing said second plate member.
Claim 8
Dependent Claim
108 words
The tourniquet defined in claim 6 in which said pivotal mounting of said fixed length strip element includes a link formed with a central opening having a length exceeding the width, said fixed length strip element having a neck portion sized to fit widthwise through said opening and being formed inwardly of a wider end portion sized to fit diagonally through said link opening for assembly therewith, said link being secured to an end of said second plate member with an end portion of the latter overlapping an end of said link central opening thereby shortening said diagonal dimension to prevent passage of said wider end portion therethrough.
References Cited (Backward Citations)
US1317319A
Cited
FR488811A
Cited
US2206481A
Cited
US2444161A
Cited
US3159160A
Cited
US3659609A
Cited
US4134398A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-07-01 | 1983-12-31 | 1984-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-07-01 | 1987-12-31 | 1988-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-07-01 | 1991-12-31 | 1992-07-01 | $7700.00 | Window Closed / Lapsed |