US1927520A

US1927520A - Optical illuminator

Info

Publication number: US1927520A
Application number: US510114A
Authority: US
Inventors: Walter S Lafans
Original assignee: Individual
Current assignee: Individual
Priority date: 1931-01-21
Filing date: 1931-01-21
Publication date: 1933-09-19
Anticipated expiration: 1950-09-19

Description

Sept. 19, 1933. w 5 LAFANS 1,927,520

OPTICAL ILLUMINATOR Filed Jan. 21, 1951 \a Inven'bor': Walter S. Lafans.

KHiornegs.

Patented Sept. 19, 1933 7 UNITED STATES PATENT OFFICE This invention relates to a surgical appliance, and while the invention is capable of use for practically all examinations or operations on the V 7 human body, it is of particular useto dentists, eye, ear and throat physicians, and for surgeons generally. It has been the common practice to examine parts of the* human body such'as the teeth, throat, etc., with. the naked eye, and to; operate or work on such parts while the same are.

viewed with the naked eye; This has also been true with surgical-operations; It'is obvious that much finer and more delicate work can be done if the-parts are viewed under magnification.

' It is an object of thisinvention, therefore, to

'15 provide a surgical appliance by which various parts of the human body can beviewed under magnification, and at the same time be illuminated'so that examinations can be made thereon or operations performed thereon.

It is a further object of the invention to provide a magnifying device such as a lens, together with an illuminating means mounted adjacent the lens and preferably at the edge thereof and which can be moved to various positions about said lens so worked upon can be effectively-illuminated.

It is also an object of the inventionto provide is carried on a suitable standard, said bracket being preferably mounted about a universal joint and said standard preferably also being ad- 'justable. I

It is still another object of the invention to provide a device adapted to be attached to a chair such as a dentists chair comprising astandard and a forwardly extending arm, said parts being adjustable and said arm carrying at. its forward end a member'swingable thereon in which aims is mounted, said lens having a' semi-annular member extending thereabout and a lamp carrying means mounted on and slidable circumferentially on said semi-annular member.

It is mor e' specifically-an object of the invention-to provide a lens having a rim thereabout, a semi-annular member extending about said rim, a member slidably mounted on said semi-annular member and circumferentially'movable thereon, means for holding said member in various positions, and a member swingable on said last mentioned member and arranged to carry a lamp and reflector therefor.

' These and other objects and advantages of lowing description made inconnection with the that the desired portions being "examined or nular'or ring-like member 22.

tion' and has the projecting lugs 22d through and held upon the lens 23.

the invention will be fully set forth inthe fol-- a web 22 at the top of

portions

22 and 220; Mem- 7 accompanying drawing, in which like reference characters refer to similar parts throughout the several views and in which:-

Fig. 1 is a view partly in side elevation and partly in vertical section of the device; and

" Fig. 2 is a partial view in front elevation shown on a reduced scale. v

Referring to the'drawing, a device is shown comprising a bracketlO; This bracket has a vertically extending plate-like. portion 10a hav-' ing a vertical slot 101) therein adapted to fit over a screw or threaded stud 11 which may extend from the rear side, of aback 12 forming part of a chair in which the patient'sits. Screw-11 has a hand operated nut 13 thereon which can'be tightened against bracket 10 to hold the same rigidly inposition. Bracket 10 also'has an up-' standing boss 100 in which is mounted a standard 14. While the standard may be of any desired construction or material, in practice it has been found convenient to have the same made of flexible tubing which can be bent in various direcv tions but which will retain the position to which it is bent. The top of standard 14 carries'a socket member 15 in which is disposed a ball 1611' forming part of an arm 16. Ball 16 extends at right angles to the main portion of arm 16 so thatthe latter as shown extends substantially horizontally. Arm 16 can 'be'moved'to different positions and held by a set screw 15a. Arm 16 is formed as a tube in which is slidable therod 17. Tube 16 has a small boss'16b adjacent its end through which extends a set screw 18 having a small wheel at its end by which it may be tightened or loosened. Rod 17 has secured to its outer end a bracket19, the same being shown as'pinned to said rod by the pin 20. Bracket 19 has a depending bifurcated portion 19a between the arms of which is disposed a lug21a of bracket 21, the same having another depending lug 211) which is embraced by the bifurcated portion 22a of projection 221) extending rearwardly from a semi-anv A stud 19?) ex tends through portions 21b and 22a and has thereon a wing nut 190 which can be loosened to relatively swing said portions or tightened to hold them in fixed relation. Member 22 extends about a rim 22c forming the holding rim for a lens 23; The rim 22c is split at its bottom porwhich passes the headed and nutted bolt 24 by means of which the rim 220 is clamped upon The member 22 is connected to the rim 220 by arms 22c and also by a projection adapted to seat in the groove- 22g. A ball 25b is disposed at the end of the short arm projecting downwardly and outwardly from member 25, which ball is embraced by a socket member 6. Socket member 26 has secured thereto a lamp socket 27 in which is secured a lamp 28. A reflector 29 is also mounted on the socket 27. A screw 30 extends through the bracket 25 and engages the member 22.-;hav.- al practice and found to be very successful and ing a head thereon by which it canbe tightened to hold bracket 25 in the desired position. A cord 31 having conductors therein extends to thesocket 27 and as shown, this passes into the socket member 26 and through a small depending'lug 25c=on member 25 and through the ball 25b. l Said cord extends to a drum orreel 32 mounted in a casing supported on a bracket 34:which is. made as a portionoi or secured to the arnilG. :The, drum 32 preferably will be turned by a spring (not shown) so that the cord 31 will be wound up therecnand ,kept under suitable tension, Cord 31. extends through the center of drum 32 and through lugs 35 on standard is? to a suitable source of current. As the lampismoved, the cord will be drawn off of the reel;

standard 14, which standard may be either sup- I .ported on the floor or secured in a chair as shown.

The standard will be adjusted to bringthe arm -16 into. the desired position and rod l'l will be adjusted so that the lens 23 can be brought in frontpf the desired location. If the throat is to be examined or if work is to be done on the teeth, the lens-will be positioned in front of the mouth .of, the patient. 3 a0.

The, dentist or physician in .charge can then look through the lens and will see the portion to be examined or worked upon, vmagnified. Thelamp 28 will be lighted, and the portion to be worked upon or examined will thus the illuminated. The bracket 25 can be moved to any point on the member 22 and secured in, place .by. the screw 30. In the usual operation of the .-device, the operator .will be disposed on the side ot-the-lens opposite the lamp 27.' The lamp 27 the .lens.23.

thus illuminates the portion being viewed through The light willbe directed upon the desired place by a reflector 29. It'will be seen that the lamp and reflector do not come within the held of the lens so that there will be no inter- =ference withthe' lens and the lamp or reflector will not get in front of the portion to be examined or worked upon. While the lens 23 may be of-various sizes, in practice it has been found that 1 a lens about four and one-half inches in diameter .is very effective. .is using the device to examine or-work upon some When the physician or dentist portion. of the patients mouth or throat or the .teeth, the lens can be placed in front of the .mouth and also acts to shield thephysician from .the breath of the patient or from any moisture or Jglobules which may be emitted from the patients mouth.

From the above description it is seen that applicant has provided a very simple and. efficient appliance which has a high degree of utility. It

.is obvious that in dental work much more. accurate work can be done when the parts being worked. upon are magnified. The device is also -of great utilityand advantage in performing any .pperation inwhich aknifeis used. ;It.-wi1l read-, .ily be seenthat an incision can be much more tion, va support, ,:an, arm extending from .said -support, a universal-joint connecting said garm and support; a .member carried: at-t-he other. end --of said arm and movable relativelythereto; a. lens mountedin saidmember; a member mounted on said last mentioned-member andmovable thereon about said lens, and a lamp carried .by said arm swivelly accurately located when the surgeon sees the parts under magnification. This is quite important, as often times a very slight variation in the location of a cut means important results. As stated, the lamp is disposed adjacent the edge of the lens and can be readily moved about the lens and brought to the most advantageous position to illuminate the portion being examined or. worked upon. The lamp and reflector are .small and are disposed sothey do not inany way interfere with the work or the use of the lens. The device has been amply demonstrated in actuemcient.

-It -will;of course, be understood that various .changesrmaysbe made in the form, details, ar-

rangement and proportions of the parts, without departing from the'scope of applicants invention,

which generally stated, consists in a device capable of carrying out the objects above set forth zinzthezparts; and. combinations. ,ofparts. disclosed and; defined "in the :appended claims.

said device, and anilluminating.element-:mountj n to andslidableahout.saidsdevice to be locatedfat idiiierent periphery ofrthe same, In operation, the device will be supported bya second member; carried-by andspacedfromsaid member and extending around said 116115,.111188115 movable on said second member todiflierent. po-

sitionsaround said lens, anda.lamp,;carried;b5

said means; i 3. ;A surgical,appliance; havingjn .combination, a. lens, a member extending about the :edge

of said lens, meansjmounted, on isaidimember and movable to different positions about saidlens,and adamp carried by. said means; 4. Agsurgicalappliance havingxa combination,

- a lens, ,a supporting means :for saidslensximeans for holding said means in various: positions, a

.a lens,.a member slidable cnumferentiallyiab g nS.. andi;being and adjacent. the edge Ofsaid,

movabletoward and, from said lens,'and a'lamp carried. bygsaid member.

6. A surgical appliance having in .combinalastmentioned memben r 7.: A surgical appliance having in combination, a standardadapted to: be moved to; and=heldsin .ldifferent; positions; an extensible and contractible secured to said standard, a lensholding means carried by said arm;.andmovable about-.axesat-rightangles to each other; and a lamp carrying-member-mounted to beslidable-cir- 'cumforentially about said lens 8..A isurgical appliance having .in.-c 0mbiI,1a--* tion, a stationary support, a lens, alens holding means mounted on said support-and movableto difierentpositions relatively thereto, a lampgdisposedadjacent one edge ofsaid lensyand cmeans for supporting said lamplmovable circumferen- 1 mp supported :adjecent the; edge. of :said lens 120 10. An apparatus of the class described having in combination, a lens, means carrying said lens and extending thereabout, a lamp support mounted on said means movable to different positions about said lens, a lamp carried in said support for illuminating an object viewed through said lens, said lamp support being movable toward and from the plane of said lens.

WALTER S. LAFANS