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Патент USA US3054409

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Sept. 18, 1962
c. P. MEEK
3,054,404
SKIN GRAF'T APPLICATOR
Filed Aug. 14, 1961
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INVEN TOR.
BY
H TTOE/VE Y5
ij?ii?ei grates Fatenr fine
3,954,4d4
Patented Sept. 18, 1962
2
3,054,494
SKIN GRAFI‘ APPLICATUR
Cicero P. Meek, 105 Jackson Drive, Aiken, S.C.
Filed Aug. 14, 1961, Ser. No. 131,434
4 Claims. (Cl. 128-—260)
This invention relates to a skin graft applicator, a
method of making the same, and a method of applying
material is preferably cloth which may be easily and
effectively sterilized although the invention is not limited
thereto and other suitable ?exible sheet materials may be
found and employed.
'
In forming the applicator the sheet 2 is ?rst folded in
an obvious manner to form a ?rst pleat 4 extending there
across and pressed snugly against the upper face of the
sheet 2. A second pleat 6 is then folded in the material
a skin graft to a patient.
2 in a direction transverse to the ?rst pleat 4 and which
The purpose of the present invention is to provide a
10 includes the folds of the ?rst pleat. As shown, the
method and means for applying skin graft material to a
pleat 6 extends at right angles to the pleat 4. This rela
predetermined area on a patient whereby the material is
properly and e?iciently distributed over the desired area
in sufficient quantity to effect growth of new skin on the
tionship is preferred although obviously the angular rela
tionship need not be exactly as shown.
After the second pleat 6 is folded across the material,
patient and employing only a minimum quantity of live 15
a third pleat 8 is formed adjacent the ?rst pleat 4 and
skin from a donor.
parallel thereto, which pleat extends across the second
According to applicant’s method a small quantity of
pleat
6 and includes the layers thereof within its folds.
live skin from a donor is cut into small squares or pieces
As
shown,
the second pleat 8 and subsequent pleats are
of other shape and is mixed with an appropriate carrier
folded to lie on the same face of the sheet material 2
material to form a spreadable mixture. It is desirable
and to extend in the same direction thereover. This
that this spreadable mixture be applied to the patient’s
body in spaced, relatively small, quantities which start
to grow and spread to cover the entire area. Applicant
employs an applicator means comprising a sheet of ?ex—
relationship, however, is not essential since the pleat
8 (FIG. 3) could with equal facility be folded in the
opposite direction to extend toward the pleat 4, if de-~
ible material, preferably cloth, folded and pleated in 25 sired, so long as it does not entirely cover the ?rst pleat.
After the pleat 8 is formed, a fourth pleat 10 is folded
such a manner that small discrete and normally spaced
areas on one face of the sheet are placed in contiguous
relation. The skin graft material is then spread, in a
thin layer, over the folded portion of the sheet to
cover all of the discrete areas. The sheet is then stretched
paraliel and adjacent to the pleat 6 and extending across
‘both pleats 4 and 8. Thereafter additional pleats are
folded in the same manner, alternating in parallelism
to ?rst pleat 4 and second pleat 6, until the structure of
FIG. 1 is produced. Obviously, the number of pleats
to its unfolded condition, which separates the skin graft
and size of the sheet material 2 may be any value de
material into relatively small but regularly spaced por
sired to give a cross-pleated area of the desired size.
tions distributed uniformly over a face of the unfolded
As is obvious from FIGS. 1 and 3, the cross-pleated
sheet. The applicator is then applied to the patient’s
area
of the sheet 2 exposes only discrete and contiguous
body with the spaced portions of skin graft material 35
area portions 12 of the upper surface of original sheet 2.
innermost and the material is thus transferred to the area
The pleats having been formed at right angles and alter
where the skin graft is desired. The sheet material may
nately
and in a sense interlock with each other which
be left in position and serve as a temporary bandage
until the material has started to grow and adheres to
prevents inadvertent or accidental unfolding, whereby
It is therefore an object of the present invention to
the structure remains in the form shown in FIG. 1 until
forcibly stretched to extended position. It is preferred
that the pleats be permanently creased, as by pressing
provide a skin graft applicator and method of high
efficiency and simplicity and which effects a proper and
uniform distribution of skin graft material over the de
By reference to FIG. 2, it will be seen that the small
discrete surface portions 12 are uniformly and evenly
the patient’s tissues, after which it may be removed and
the area treated or rebandaged as desired.
sired area.
with a hot iron.
45 distributed over the surface of sheet 2 when the latter
is stretched to its unfolded condition. The surface por
tions 12 are spaced apart when the sheet is stretched
but are contiguous when cross-pleated, as in FIG. 1.
Still another object is to provide a novel method of
In use, a previously prepared skin graft material, com
making a skin graft applicator embodying the present
50 prising small particles of donor skin and a suitable car
invention.
rier is spread over the cross-pleated area of the appli
A further object is to provide a novel method of
cator of FIG. 1 to completely cover the same and thereby
grafting skin over a predetermined area on a patient’s
cover each of the areas 12. Thereafter, the appliactor
body.
is stretched to the unfolded condition of FIG. 2 where
Additional objects and advantages will become ap
upon the layer of skin graft material is separated into
parent to those skilled in the art as the description pro
small rectangular portions, each covering one of the
ceeds with reference to the accompanying drawings
areas 12, which effects a uniform distribution of the ma
wherein:
terial over the applicator sheet and enables a skin graft
FIG. 1 is a plan view of an applicator embodying the
to be made over a much larger area than encompassed
present invention, and ready for use;
by the cross-pleated portion of FIG. 1.
FIG. 2 is a plan view of the applicator of FIG. 1
Finally, the applicator is applied to the patient’s body
in the early stages of folding the same to the desired
in the manner previously set forth to place the skin graft
condition, and;
Another object of the invention is to provide a novel
applicator for achieving the objectives of the invention.
FIG. 3 is a fragmentary enlarged, sectional view through
material in proper position against the patient’s tissues
to adhere thereto and to grow and form new skin.
65
FIGS. 1 and 2.
The alternate cross-pleating described with reference
The drawings herein illustrate a preferred form of
to FIG. 1 is, as stated, the preferred method of forming
the applicator as seen on any one of the lines 3-—3 of
the invention although, as will be pointed out, the appli
the applicator. However, all pleats of one set may be
initially formed in the set and thereafter the sheet may
be folded to form all of the pleats of the second set ex
material 2 is folded to form two sets of parallel pleats, 70 tending transversely thereto. Such an applicator may
each set extending transversely of the other set. The
be used in the same manner and with the same results
cator may be formed in other ways.
Referring ?rst to FIG. 2, a sheet of suitable ?exible
3,054,404
3
t
42
extending thereacross and including the layers of said
?rst pleat in its folds; folding a third pleat across ‘said
material, adjacent and parallel to said ?rst pleat and ex
as the one described in detail, although it has more tend
ency to unfold or open by itself.
Other folding sequences are possible and other forms
of pleats than those speci?cally shownherein may be
employed without departing from the scope of applicant’s'
tending across said second pleat; folding a fourth pleat
across said material adjacent and, parallel to said second
pleat and extending across said ?rst'and third'pleats;
invention.
and folding additional pleats in said material, alternately
,
While a limited ‘number of speci?c embodiments of
the invention are described herein, the same are merely
illustrative and other forms may be resorted to Within
the scope of the appended claims.
I claim:
parallel to said ?rst and second pleats, respectively until
-* a desired area of pleated material is formed.
10
4. The method of applying a skin graft, comprising
the steps of: folding a sheet of material to position nor
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mally spaced discrete surface portions of one face there
of in contiguous relation; spreading a layer of skin graft
material, comprising small particles of donor skin, on
parallel pleats; said sets of pleats extending transversely
said contiguous surface portions; unfolding said sheet of
to each other whereby to expose only spaced discrete 15 material to separate said surface portions whereby the
portions of a face of said ?exible material, said portions
skin graft material thereon is separated into spaced por
being in contiguous relation when said sheet is pleated as
tions on one face of said unfolded sheet; and applying
described; the layers of material comprising said pleats
said one face against a donee’s body to thereby transfer
being free of securement to each other whereby said
said spaced portions of skin graft material to said donee.
pleated sheet may be pulled to unpleated ?at condition
wherein said discrete portions are spaced apart in non
References Cited in the ?le of this patent
contiguous relation.
UNITED STATES PATENTS
2. 'A skin graft applicator as de?ned in claim 1 where
v1. A skin graft applicator comprising; a sheet of ?ex- I
ible material folded and creased to de?ne two ‘sets. of
in the pleats of at least one set include Within their folds
2,583,341
the overlying layers of material de?ning pleats of the 25 2,716,407
other set, whereby the pleats of said sets are temporarily
interlocked to prevent inadvertent; unfolding thereof.
' 3. The method of forming a skin graft applicator,
Reese __-_' ____________ _.. Jan. 22, 1952
Glickman ___________ __ Aug. 30, 1955
OTHER REFERENCES
“Paper-Backed Postage Stamp Skin Grafts in the Treat
comprising the steps of: folding a sheet of ?exible ma
terial to form a ?rst pleat thereacross; folding a second
ment Of Burns,” Elliott and Grow.
pleat across said material, transverse to said ?rst pleat,
55, 128-3055.
Copy in Division
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