US2221758A - Surgical dressing - Google Patents

Description

Nov. 19, 1940. -F. ELMQUIST 2,221,758

SURGICAL DRESSING Filed May 12, 1937 ZNVENTOR, 54/70 /5 570771057,

BY KM ATTORNEYS.

Patented Nov. 19, 1940 .UNITED STATES SURGICAL DRESSING Francis Elmquist, Kansas City, Mo. Application May 12, 1937, Serial No. 142,192

1 Claim.

This invention relates to surgical dressings of a particular nature, and has for its primary object, the provision of a shield for a part of the skin of the human body that is being subjected to the action of materials to determine the effect of such materials upon the body if used, for example, as a cosmetic. One of the important aims of this invention is to provide a shield of the aforementioned type, that is specially made so that the parts thereof are uniquely held in assembled relation Without the employment of stitches, staples, brads or other objectionable elements that would have a detrimental eifect upon the results obtained.

Another important aim of this invention is to provide a shield or surgical dressing of the adhesive type, having as a part thereof, a flexible body, one side of which is covered with an adhesive material, part of which serves to hold the shield in place, while other novelly formed elements are secured in operative position by an additional part of the adhesive.

A yet further, and very important, object of this invention is to provide a shield for use in testing the elfect of cosmetics upon the human body, which has a specially formed and positioned member that serves to create a materialreceiving cavity and to segregate an area of the body being tested from the adhesive which is employed in holding the shield in operative position.

Structural details of the shield form minor objects of the invention, and the same'wlll appear during the course of the following specification, referring to the accompanying drawing, wherein:

Figure 1 is a perspective view of the surgical dressing in place on a human body, and made in accordance with the present invention.

Fig. 2 is an enlarged, top plan view of the same, a portion being broken away for clearness.

Fig. 3 is an extended, disassembled view of the surgical dressing, and,

Fig. 4 is a cross sectional view, taken along line IVIV of Fig. 2.

The shield comprises in the main, a body 6, sheet of transparent material 8, and flat annulus of fibrous material l8. These aforementioned parts are brought together through the employment of the adhesive which overlies the entire one side 12 of body 6. An opening I is formed through body 6, and sheet 8 is moved to position over opening M, with its marginal edge against the adhesive on side 12.

In most instances it is desired to make opening l4 round, in the manner illustrated, and when body and opening are formed as shown, sheet 8 should likewise be disc-shaped, but smaller in outside diameter than the outside diameter of body 6. The diameter of sheet 8 is slightly larger than the diameter of opening l4, and the adhe- 5 sive between body- 6 and sheet 8 will secure the same together.

Sheet 8 may be provided with a plurality of notches I6 so as to increase the area of one side of member I0, which is brought against the adhesive on side l2 of body 6. When the flat annulus or member ID is moved to place, a part of its marginal edge will extend beyond the edge of sheet 8 to be held by the adhesive. The use of radially disposed notches I 6 will augment the 15 action of the adhesive so as to create a firm and well assembled unit.

Member II] is ring-shaped and an opening I 8, formed in member II], should be substantially of the same diameter as opening Hi. When the 20 shield is assembled, openings l4 and I8 should be in register with sheet 8, extending across the same. Member II] should be of felt or some similar fibrous, pliable and yieldable substance which will definitely segregate an area of the body from 25 that portion thereof contacted by the adhesive on face l2 of body 4.

Reference to Fig. 4 will indicate that the area designated by the numeral 20 is not contacted by the adhesive on body 6. Obviously, material 30 within cavity 22, which is bounded by the inner annular edge of member Ill and covered by sheet 8, will act upon a small segregated surface of the skin, which will not be aiTected or acted upon by adhesive or any matter other than the mate- 35 rial being tested. Member ID may be impreg-- nated with any suitable germicidal material or substance which would preclude the passage of bacteria or germs into cavity 22, and when body 6 is pressed into place, member ID is in a location 40 to effectively protect the material and set-off area of the skin.

Sheet 8 should be stiif enough to preclude inward bulging and a transparent nitro-cellulose material may be employed that has the property of bending to the contour of the body without breaking or losing its rigidity.

A surgical dressing or shield made as herein set down may assume a physical appearance dif- 50 ferent from that in the illustrated embodiment herewith, and therefore, it is desired to be limited only by the spirit of the invention and scope of the appended claim.

Having thus described the invention, what is 55 greater than said sheet of transparent material and less than the outside diameter of the said body, disposed against the body and said sheet of transparent material to form a cavity to one side of the sheet of transparent material, said adhesive serving to hold the body, said sheet and the said annulus in assembled relation, said sheet of transparent material being provided with a plurality of notches extending inwardly from the edge thereof to expose to the adhesive arelal0 tively greater portion of the area of said annulus.

FRANCIS ELMQU'IST.

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