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Патент USA US2406647

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Aug. 27, 1946.
l. L. WEBER ETI'AL
2,406,647 ‘
CARPONIZING INSTRUMENT
Filed Aug. 10, 1944'
20
‘J I'NVENTDRS
I.L.&M.H.WEBER
BY
WM
ATT D R
EYS
2,406,647
Patented Aug. 27, 1946
UNITED STATES PATENT OFFICE
2,406,647
CAPONIZIN G INSTRUMENT
Ion L. Weber and Mervin H. Weber,
Waterloo, Ontario, Canada
Application August 10, 1944, Serial No. 548,868
5 Claims. (Cl. 128-4505)
1
a bird being operated upon, at least one of the
ments.
In caponizing operations it is usual to employ
several instruments used in succession to carry
out and complete the operation. In the first place,
a scalpel is used held at the correct angle for mak
ing the preliminary incision. When this has been
done, it is necessary to insert, in the incision, a
spreading instrument and to unclasp it so that its
arms will spread apart, thus to hold the edges of 10
the incision apart so that the operator may then
use the forceps to complete the operation. These
several steps require time and, when it is con
sidered that following the completion of the op
eration the spreading instrument must be re
moved, it will be obvious that if some 01' these steps
2
operating gripping portions for gripping parts of
This invention relates to caponizing instru
jaws being tapered rearwardly of its gripping por
tion to fonn a gradually widening spreader por
tion capable of spreading the incision in the bird
and retaining the edges of the incision spread
apart while employing the gripping portions with
in the incision. The upper Jaw is preferably
formed with a longitudinal recess to provide a
viewing opening during the operation while this
upper Jaw is also preferably of channelled forma
tion having side ?anges forming the spreading
portions of the instrument as the upper Jaw ta
pers outwardly and widens rearwardly of the grip
15 ping portions. Preferably also the instrument in
could be feasibly eliminated that considerable
time could be saved, which would mean the ca
ponizing of a greater number of birds than ordi
narily possible.
cludes a scalpel blade connected intermediate the
ends of the element and projecting therefrom at
an angle thereto.
The invention will be clearly understood by
reference to the following detailed speci?cation
taken in conjunction with the accompanying
We have found that these several steps can be
drawing.
taken care of by one instrument, which in actual
In the drawing
use has provided for the caponizing of a much
Figure 1 is a perspective view of the improved
greater number of birds than could have been
dealt with under ordinary methods by the same 25 type of caponizing instrument according to the
operator.
'
present invention.
It is therefore an object of the present inven
tion to provide a simple caponizing instrument
in the form of an improved type of forceps which
Figure 2 is a top plan view of this instrument.
Figure 3 is a perspective view similar to Figure
1, but showing the jaws open.
and will effect a spreading of the incision at the
same time that the forceps are being used in the
the instrument substantially at the point of piv
will eliminate the necessity of using spreaders 30
Figure 4 is an end elevation of the instrument.
Figure 5 is a transverse section taken through
otal connection of the element, and
Figure 6 is an enlarged fragmentary sectional
A further object of the invention is to provide
an instrument of this kind which incorporates 35 view of the jaws and adjacent portions of the in
strument illustrating in particular the formation
a scalpel blade projecting from the forceps at an
of the gripping portion of the Jaws.
angle thereto and poised at a correct angle to the
Referring to the drawing, A indicates the ca
body of a bird when said forceps are held in sub
ponizing instrument as a whole which is made
stantially normal position of use in respect to said
40 up of the two elements l0 and II pivoted inter
body.
mediate their ends by the pivot pin l2. At one
A still further object oi’ the invention is to pro
end the elements are provided with the handle
vide a simple and efficient type of forceps, which
portions l3 and H of any desirable type and at
not only will act as a spreader to separate the
the other end are provided with the jaws i5 and
edges of the incision during the extracting opera
tion, but one employing a special formation of jaw 45 I6. While under the present invention the in
strument may be made in any practical way so as
which will provide for a clear view of the gripping
extracting operation.
to incorporate the particularly novel construction,
portions of the Jaw when within the incision, thus
I have illustrated in the accompanying drawing a
permitting the operator efficiently to grip those
preferred manner of construction wherein the ele
parts to be extracted from the bird.
With these and other objects in view, the in 50 ments are formed from plate material cut to shape
and twisted as at l1. so as to dispose the plate
vention generally comprises an improved type of
like jaws at right angles to the normal plane of
forceps including a pair of elements pivotally con
the shank portions [8 of the instrument.
nected together intermediate their ends and
As shown particularly in Figure 3, the lower jaw
formed with handle portions at one end and grip
ping jaws at the other end, the Jaws having co 65 It takes the form of a plate-like element having a
2,406,647
3
transverse opening l9 adjacent to its outer end.
This forms a gripping portion by providing the
narrow bar-like end ‘20. The upper jaw I6 is
formed with a similar gripping portion to provide
the narrow bar-like end 2|, but preferably the
upper jaw is provided with a longitudinally ex
tending recess 22 which starts at the bar-like end
2| and extends rearwardly in the upper Jaw
throughout a major portion of its extent. This
provides a viewing opening through which the op
erator can obtain a clear view of internal parts
of the bird when the instrument is disposed within
the incision as will appear hereinafter.
According to a particular feature of the in
vention, the jaws are tapered re'arwardly of their
gripping portions and gradually widen to form a
spreader portion B. In the present illustration.
both the upper and lower jaws are tapered in this
The scalpel blade C is preferably mounted by
slotting the upper end of the blade, as at 26, and
causing the slotted portion to straddle the bolt
24, thus the blade C is securely fastened on the
shank of the instrument and, by loosening the
securing nut of bolt 24, the blade may be pro
Jected axially the desired degree. and likewise may
be adjusted angularly to the correct position
which appears to be required by the operator for
performing the cutting operation quickly and
efficiently.
As shown in Figure 6, the gripping portions of
the Jaws are so formed that when they are
brought together they will abut one another in
parallel relation and the opening It will find its
counterpart in the outer end of the recess 22
of the upper jaw l6, Moreover, the ends of the
gripping portions are inwardly tapered, as at 21,
and 28, respectively, so that the bar-like gripping
manner, but it will be appreciated that at least
one of these jaws, preferably the upper law, 20 ends 20 and 2! in fact taper down to a relatively
narrow edge at the point where they engage one
should be so tapered. In the preferred form of
another when. the Jaws are closed. On the one
construction the upper jaw is of channel forma
hand the tapered portions 21 and 28 serve to push
tion, being provided with the side ?anges 23 pro
internal parts of the bird away from the testis
jecting upwardly from the plane of the jaw and
as the gripping portions of the jaws envelope the .
being outwardly curved and ?ared. This forms
latter. On the other hand, the tapered portions
a practical spreading portion which, when the
21 and 23 serve to provide a very narrow gripping
jaws are projected through an incision in the
bird, will hold the side edges of the incision spread
apart and permit the operator to see the ‘necessary
interior parts of the bird as the operation is being
performed. A particularly clear view is‘provided
by a combination of both the spreader portion of
the jaws and the viewing opening 22 previously
referred to.
The elements it] and II are preferably pivoted
together by means of a. bolt 2-‘: which is provided
with an enlarged shoulder bearing portion 25
(see Figure 5), which is designed to pass through
a receiving orifice in one shank of the instrument
while the shank (pivot pin l2) of the bolt 24
passes through the other shank of the instrument.
This permits a swinging movement of the ele
edge which will lend to the practical and elli
cient gripping of the tissue so as to provide for
the ?nal parting of the tissues properly.
In operation the caponlzing instrument is
grasped in normal manner by the handle por
tions and assuming that the bird has been pre
pared for the operation the skin of the bird is
stretched tightly by the thumb and index ?nger
of the left hand in that area overlying the last
and second last ribs of the bird. The instrument
is‘then disposed so that the point of the scalpel
blade C is substantially at right angles to the
plane of the skin at this point. The skinis-then
laid open in normal manner by a stroke of the
scalpel and, in fact, an experienced operator using
ments of the instrument one to the other'with
this instrument may also penetrate the under
out loosening the bolt connection.
Preferably the instrument includes a scalpel
blade C which rigidly projects from the shank
portions of the instrument and is preferably con
nected at their point of pivotal connection. ‘This
scalpel blade is designed to project from the shank
When the incision has been made the instru
ment is then turned slightly on its side so that
at a suitable angle, such that when the instru 60
ment is held in a substantially normal position
relative to the body of the bird the scalpel blade
will be poised at substantially the correct angle
to the bird‘s body and corresponding to the posi
tion in which the conventional scalpel is held for
the operation. Consequently, instead of it being
lying tissue, as well as the air sac wall so that
in one stroke the organs may be exposed.
the gripping portions 26 and 2i of the closed jaws
i5 and i6 may be caused to enter the incision.
the plate-like portions of the Jaws being substan
tially parallel to the edges of the incision, where
upon by turning the instrument back again so
that the plate-like portions of the laws are dis
posed at right angles to the line of the incision.
the edges of the incision will be caused to spread
apart. and as the instrument is projected through
the incision the spreader portions 23 of the in
necessary, as in the case of past practice, to hold
strument will spread the edges of the incision
a scalpel vertically between the thumb and first
farther apart as required for proper vision. With
and second ?ngers, then performing the opera
tion, putting down the scalpel, picking up the 60 the organs exposed through the open incision the
Jaws of the instrument are opened and through
spreaders, inserting them in the incision, and then
the viewing opening 22 of the upper Jaw Hi the
operator is enabled readily to locate the testis
which is then grasped by the gripping jaws and
caused to be received in the recessed portion iii
of the lower Jaw and the recess rearwardly of the
gripping portion 2| of the upper jaw iii. The
jaws with the enclosed testis are now gently with
mal operating position, the scalpel blade will be
drawn through the incision preferably with a
poised above the bird in correct operating posi
tion. Therefore, the incision may be made, the 70 slight twisting motion until the various tissues
connecting the organ to the body are parted. The
forceps inserted therein so as to spread the edges
formation of the gripping portions 20 and 2|
of the incision and the operation carried out
wherein the taper 21 and 28 forms a line edge
immediately with the one instrument. The
where these portions meet one another permits
particular facility of this will be apparent here
the operator to completely withdraw the testicle
inafter.
picking up the forceps to introduce them to the
incision, all that is necessary to do is to pick up
the forceps and when they are disposed in a posi
tion but slightly different from normal position
when used in the incision, and therefore disposed
in a position substantially coinciding with nor
2,406,647
6
place two sizes of instruments used at the present
including the capsule or sac of peritoneal mem
brane surrounding it, the epididimus and a short
time.
piece of the vas deferens or cord. This will there
fore avoid a high percentage of slips which other
wise occur if all these parts are not removed.
the use of the instrument on birds of various sizes
Moreover, the viewing opening 22 in the upper
jaw i6 materially assists the operator in so en
gaging the jaws with these parts that there is
One further important point in connection with
should be noted in respect to the instrument of
the present invention. This is that by incorpo
rating a spreader portion gradually widening
rearwardly oi the gripping portions of the jaw,
it makes it possible to pass the instrument
small possibility of leaving any of them in.
When this operation has been performed the 10 through the incision to a greater or lesser de
bird is preferably reversed and a similar opera
tion performed from the other side in the usual
manner.
gree, as required by the size of the bird. For in
stance, in the case of a small bird, the caponizing
instrument would ordinarily be passed through
It is clear from the foregoing that by the use
the opening to a lesser degree than in the case
Of this one instrument a great deal of time is
of’ a larger bird. correspondingly, therefore, as
the instrument of the present invention is pro
jected through the incision to a greater or lesser
saved in caponizing. It is obvious that the time
taken to pick up a scalpel, position it in the cor
rect position, make the incision and then put
down the scalpel, pick up the spreader and insert
the spreaders is avoided, as well as the then nec
essarv step of picking up the forceps and pro
ceeding with the operation and the final removal
of the sprcaders. This series of steps through
the use of the present instrument is completely
eliminated as it is only necessary to pick up one
degree, the spreader portion will spread the in
cision correspondingly to a greater or lesser de
gree as required in proportion to the extent to
which the jaws are projected through the inci
sion. Thus, in the case of a larger bird, the in
cision will be spread apart to a greater degree as
would necessarily be required, while the converse
is the case when operating upon a smaller bird.
This is compared with the necessity in the case
instrument. Then with the instrument disposed
of the conventional caponizing instrument of
in a position substantially coinciding with that
using different sizes of instruments as well as
normally used for the extracting operation, the
different sizes of spreader. ‘Therefore, if the
scalpel blade C is poised in correct position and
instrument of the present invention replaces at
it only requires a stroke of the scalpel the intro
least two different sizes of caponizing forceps,
duction of the gripping portions of the jaws to
it will be realized that it replaces in effect four
the incision and a slight twist, or the instrument
complete instruments namely, two sizes of vfor
to spread the incision whereupon the operation
ceps and two sizes of spreaders.
is immediately performed so that the instrument
It is apparent that the invention is of such
provides an efficient and practical means of per 85
character that it can be readily manufactured
forming the operation in much less time.
without difficulty.
Apart from these important advantages, as
What we claim as our invention is:
above outlined, it should be noted that due to
l. A caponizing instrument comprising a pair
the fact that the instrument of the present in
vention can be produced along precision lines, 40 of elements pivotaliy connected together inter
mediate their ends and formed with handle por
as compared with the usual caponizing instru
tlons at one end and jaws at the opposite ends.
ment at present generally in use, the instrument
said jaws being provided with cooperating grip
of the present invention can be constructed to
ping portions for gripping parts of a bird on which
operate on birds of various ages. as compared
to two or more instruments of different sizes that 4 a an operation is being performed, the upper jaw
being tapered and channelled rearwardly of its
are now employed according to the size and age
gripping portion to form a gradually widening
of the bird.
spreader portion and raised side flanges capable
In the most usual form of instrument at pres
of spreading an incision in the bird and retaining
ent in use, the jaws are formed from a single
shank usually bent at the end to form a straight (ll v the edges of said incision spread apart while em
transverse gripping jaw which. due to the bend
ing operation, terminates at each end in arcuate
portions joining with inclined shanks that con
verge with one another at their point of con
ploying the gripping portions within the incision.
2. A caponizing instrument comprising a pair
of elements pivotally connected together inter
mediate their ends and formed with handle por
However. the
- tions at one end and jaws at the opposite ends.
straight transverse portion of the gripping jaw is
the part which performs the necessary function
so that the curved connecting portions at each
end actually represent surplus width, and if the
said jaws being provided with cooperating grip
ping portions for gripping parts of a bird on which
an operation is being performed, at least one of
have the effect of clipping the ends of the testis,
which is the cause of a Igreat percentage of slips.
In the case of the present instrument, the recess
i9 is formed with straight edges as is possible
portions within the incision, the uppermost jaw
being longitudinally recessed over a major portion
of its length to provide a viewing opening whereby
theoperator may view the work being performed
nection with the main shank.
said jaws being tapered rearwardly of its grip
operator. by reason of the appearance of the in 150 ping portion to form a gradually widening
spreader portion capable of spreading an incision
strument which then gives the impression of a
in the bird and retaining the edges of said in
large size law, uses a, smaller instrument than
is required on a larger bird, the curved portions ' cision spread apart while employing the gripping
by reason or the plate-like character of the jaws,
while the cooperating part of the longitudinal
recess 22 adjacent the gripping portion 2| is cor
respondingly formed.
Therefore, it can be made
of a size efficiently to operate on larger birds,
while being practical also on smaller size birds.
Thus, a greater range is made possible by this
instrument and in effect the instrument can re
by the jaws, when employed to grip parts of the
bird during caponizing.
3. A caponizing instrument comprising a pair
of elements pivotally connected together inter
mediate their ends and formed with handle por
tions at one end and jaws at the opposite ends,
the lower jaw being in the form of a plate-like
member orificed adjacent its outer end to form a
2,406,047
7
gripping portion, the upper jaw overlying the
lower jaw and being recessed adjacent its outer
end to cooperate with the lower jaw in gripping
action, said upper jaw being recessed longitudi
nally over a major portion of its length to provide
a viewing opening whereby the operator may view
ber ori?ced adjacent its outer end to form a grip
ping portion, the upper Jaw overlying the lower
jaw and being recessed adjacent its outer end to
cooperate with the lower jaw in gripping action,
said upper jaw being formed with a cooperating
recess. said recesses being formed with straight
edges substantially at right angles to one another
the work being performed as the Jaws are em
to form a straight gripping jaw portion through
ployed to grip parts of the bird during a eaponiz
out its length in each jaw of a length capable of
ing operation.
4. A capenizing instrument as claimed in' claim l0 operating upon the organs of larger sized birds
3 in which the cooperating, gripping recess of the
upper jaw merges with and forms part of the
longitudinally extending viewing recess.
5. A caponizing instrument comprising a pair
of elements pivotally connected together inter
mediate their ends and formed with handle por
tions at one end and jaws at the opposite ends, the
lower jaw being in the form of a plate-like mem
as well as smaller sized birds, each one of said
jaws including a gradually widening spreader
portion rearwardly of said gripping portions and
of a length capable of spreading an incision apart
to a degree necessary according to the size of the
bird.
ION L WEBER.
MERVIN H. WEBER.
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