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Patentes

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Número de publicaciónUS3626471 A
Tipo de publicaciónConcesión
Fecha de publicación7 Dic 1971
Fecha de presentación13 Oct 1969
Fecha de prioridad13 Oct 1969
Número de publicaciónUS 3626471 A, US 3626471A, US-A-3626471, US3626471 A, US3626471A
InventoresFlorin Robert E
Cesionario originalFlorin Robert E
Exportar citaBiBTeX, EndNote, RefMan
Enlaces externos: USPTO, Cesión de USPTO, Espacenet
Illuminated suction brain retractor
US 3626471 A
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Descripción  (El texto procesado por OCR puede contener errores)

6 DH 3 513 36 26 Y I SEARCH ROOM [72] Inventor RobertE.Florln 2,354,471 7/1944 Maclntosh l28/16X 14909 Lodsa Drive, Whittler, Calif. 90605 2,767,705 10/1956 Moore 128/4 [211 App]. No. 865,675 2,911,968 11/1959 Schueler et a1. 128/6 gg Primary Examiner-Lucie H. Laudenslager Au0meyLyon & Lyon [54] Z 'f g E BRAIN RETRACTOR ABSTRACT: A surgical tool comprising a brain retractor is as shaped so that it may pass through an opening in the skull. The

[52] US. Cl n 128/20, tool has an arched blade with a concave lower surface, flat in 128/4, 128/6, 128/16, 128/276 cross section, and a pair of tubes mounted on the marginal [51] Int. Cl ..A6lb 17/02 edges of the arched blade are flush with the lower surface [50] Field of Search 128/4, 6,9, thereof. Both tubes may be connected to a source of suction J 20, 276, 16, 351 pressure for removal of fluids from the operating area, or only i one may be so connected, with the other supplying a flushing Rehrcncescmd fluid. A curved fiber optic element is mounted upon the UNITED STATES PATENTS arched blade between the tubes to illuminate the operating 339,754 4/1886 Foote 128/16 area 1 ILLUMINATED SUCTION BRAIN RETRACT OR skull. The .brain retractor is equipped with at least one suction tube for removing fluids from the operating area and is provided with a curved fiber optic for illuminating the operating area. A secomlsd be used to apply suction, or it may be used to supply flushing fluid to the operating area. The fiber optic is nested between the tubes to minimize overall thickness of the tool, in order to facilitate its use through the skull opening.

In the drawings:

FIG. I is a top plan view showing a preferred embodiment of this invention.

FIG. 2 i', a sectional elevation taken substantially on the lines 22asshown in FIG. 1.

FIG. 3 is a transverse section taken substantially on the lines 3-3 as shown in FIG. 2.

Referring to the drawings, the surgical tool generally' designated I0 includes an arched retractor blade 11 having an undersurface 12 longitudinally curved and substantially flat in cross section. A pair of tubes 13 and 14 are provided, one tube being positioned at each marginal edge of the retractor blade,

respectively, each tube being substantially flush with said undersurface I2. The tubes I3 and 14 are joined to the arched retractor blade 12 throughout their lengths to stiffen the retractor blade 11. The tubes have slanted open ends 15 and I6 adjacent the forward end 17 of the retractor blade 11. Each tube has a socket 18, 19 for connection to the source of suction pressure, or alternatively, one of the tubes may be connected to suction pressure and the other to a source of flushing fluid. As shown in FIG. 3, the outer surfaces of the tubes l4 and 13 merge smoothly with the undersurface 12 of the arched retractor blade I1 so that the side edges of the tool are rounded.

A fiber optic element 21 of conventional form is curved to match the curvature of the retractor blade 11 and is nested between the tubes 13 and 14. Axially spaced clips 22 and 23 hold the fiber opticelement 21 in position, and the forward end 24 teri'ii'ih'at e s short of the open ends 15 of the tubes 13 the forward end 24 of the fiber optic element 21 serves to illu-" minate the operating area, while forming a minimum obstruction in the surgeon's viewing area. The use of the fiber optic element has an important advantage in that it acts as a filter to screen out heat which would have harmful effects upon brain tissue.

In use, the tool is extended by the surgeon through an opening in the skull, and the undersurface 12 presses against the tissue to retract it, to expose an operating area. The nesting of the fiber optic element 21 between the suction tubes I3 and I4 minimizes the transverse thickness dimension in such a manner that the tool is substantially wider than its overall thickness. This is important in minimizing the size of the necessary hole to be fonned in the skull, and in providing maxmum unblocked viewing area for the surgeon. Uniform illu- "mination of the depth of a surgical wound is provided while removal of blood or fluid is accomplished by one or both of the tubes. Onev of the tubes may also be used to deliver an irrigating solution into the wound. The convex curvature of the retractor blade permits the surgeon to hold the instrument without interfering with visualization of the wound.

Having fully described my invention, it is to be understood that I am not to be limited to the details herein set forth but that my invention is of the full scope of the appended claims.

Iclaim:

I. In a surgical tool of the class described, the combination of an arched retractor blade having a concave undersurface longitudinally curved and substantially flat in cross section, a

pair of tubes one positioned at each mar inal edgeof the retractor blade, respectively, and substantia y flush with said undersurface, and a curved fiber optic element mounted on the retractor blade and nested between said tubes.

2. In a surgical tool of the class described, the combination of an arched retractor blade having a concave undersurface longitudinally curved and substantially flat in cross section, a pair of tubes, one positioned at each marginal edge of the retractor blade, respectively, and substantially flush with said undersurface, and a curved fiber optic element mounted on the retractor blade and nested between said tubes, said tubes having slanted open ends terminating near the forward end of the retractor blade.

3. The combination set forth in claim I in which the open end of the fiber optic element terminates short of the open ends of the tubes.

4. The surgical tool construction set forth in claim I wherein the surgical tool is substantially wider than its overall thickness, in transverse dimension.

I e a l a n-

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Clasificaciones
Clasificación de EE.UU.600/205, 600/245, 604/20, 600/235, 604/264
Clasificación internacionalA61B17/02, A61M1/00
Clasificación cooperativaA61B17/02, A61M1/0084
Clasificación europeaA61M1/00T2, A61B17/02