US3835861A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical head clamp
Assignee: KEES SURGICAL SPECIALTY Co
•
Filing: 1972-12-08
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Granted: 1974-09-17
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Expires: 1992-12-08
Abstract
Abstract A surgical head clamp including two L-shaped main sections in which rack teeth on a first arm of one section are engaged by a pawl carried by a first arm of the other section. The main sections are arranged with the first arms thereof in sliding relation. Opposed head engaging means are disposed on second arms of the main sections. A single head engaging means is mounted on one of the second arms. The head engaging means on the other second arm includes a pair of pins mounted at opposite ends of an arcuate bar. The arcuate bar is slidably mounted on said other second arm.
Inventors
- 👤 G Kees
- 👤 H Hickmann
- 👤 H City
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:00
CPC Classifications
A; A61; A61B; A61B90/00; A61B90/10; A61B90/14; A61B90/06; A61B2090/064; A61B2090/065; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44291; Y10T24/44316; Y10T403/00; Y10T403/32; Y10T403/32008; Y10T403/32091; Y10T403/32114; Y10T403/32229; Y10T403/32254; Y10T403/32426; Y10T403/32434
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
251 words
A surgical head clamp which comprises a first L-shaped main section and a second L-shaped main section, rack teeth on a first arm of the first main section, a pawl carried by a first arm of the second main section, the pawl being engageable with the rack teeth, opposed head engaging means on second arms of the main sections, means for mounting the main sections with the first arms thereof in sliding relation, means for resiliently urging the pawl into engagement with the rack teeth, the teeth restraining movement of the main sections in a direction to separate the second arms and permitting movement of the main sections in a direction to cause approach of the second arms toward each other, means for advancing the head engaging means on one of the second arms when the sections have been advanced to bring the head engaging means into engagement with a head to increase the pressure of the head engaging means on the head and a pair of spaced head engaging pins carried by the head engaging means of the other of said second arms, the means for advancing the head engaging means on said one of the second arms including a threaded pin carrier supporting said last mentioned head engaging means and means on the associated second arm in threaded engagement therewith, the head engaging means on said one of the second arms being directed substantially opposite to and between the head engaging pins of the other of said second arms.
Claim 2
Dependent Claim
251 words
A surgical head clamp which comprises a first L-shaped main section and a second L-shaped main section, rack teeth on a first arm of the first main section, a pawl carried by a first arm of the second main section, the pawl being engageable with the rack teeth, opposed head engaging means on second arms of the main sections, means for mounting the main sections with the first arms thereof in sliding relation, means for resiliently urging the pawl into engagement with the rack teeth, the teeth restraining movement of the main sections in a direction to separate the second arms and permitting movement of the main sections in a direction to cause approach of the second arms toward each other, means for advancing the head engaging means on one of the second arms when the sections have been advanced to bring the head engaging means into engagement with a head to increase the pressure of the head engaging means on the head and a pair of spaced head engaging pins carried by the head engaging means of the other of said second arms, the means for advancing the head engaging means on said one of the second arms including a threaded pin carrier supporting said last mentioned head engaging means and means on the associated second arm in threaded engagement therewith, the head engaging means on said one of the second arms being directed substantially opposite to and between the head engaging pins of the other of said second arms.
Claim 3
Dependent Claim
59 words
A surgical head clamp as in claim 1 wherein the last mentioned head engaging means is mounted on a plunger slidably carried by the pin carrier, and there is resilient means mounted on the pin carrier and resiliently urging the plunger in a direction to resiliently urge the associated head supporting means toward the other of the second arms.
Claim 4
Dependent Claim
51 words
A surgical head clamp as in claim 1 wherein the head engaging means on one of the second arms includes an arcuate bar, head engaging pins mounted adjacent opposite ends of the arcuate bar, and means on said one of the second arms supporting the arcuate bar for sliding movement thereon.
Claim 5
Dependent Claim
63 words
A surgical head clamp as in claim 3 wherein the means for supporting the arcuate bar for sliding movement includes a pair of bearing pins mounted on said one of the second arms and engaging one face of the arcuate bar and a third bearing pin mounted on said one of the second arms and engaging the opposed side of the arcuate bar.
Claim 6
Dependent Claim
27 words
A surgical head clamp as in claim 4 in which each of the bearing pins is proVided with a slot in which the arcuate bar is received.
References Cited (Backward Citations)
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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) | 1977-09-16 | 1978-03-18 | 1978-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-16 | 1982-03-18 | 1982-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-16 | 1986-03-18 | 1986-09-17 | $7700.00 | Window Closed / Lapsed |