Improvements in Castrating Instruments.
Year: 1893

page_text: Date of Application, 19th June, 1893
Complete Specification Left, 19th Apr., 1894-Accepted, 12th May, 1894
PROVISIONAL SPECIFICATION.
Improvements in Castrating Instruments.
CHARLES HENRY HUISH 31 Mundania Road Honor Oak S.E. Surgical
Instrument Maker do hereby declare the nature of this invention to be as
follows:
A modified and improved form of "The Blake Castrator" made by me which
instrument being unpatented may be described as follows.
A powerful pair of crushing and cutting forceps used for the removal of the
testicles of various animals.
These forceps are about 10 inches long the end of one handle terminating in an
oblong piece of steel about 3 in. x in. x in. having a central slot the bottom
being serrated on one side and having a cutting edge on the other. The other
handle terminates in a stout curved blade about in. thick and is fitted by means
of a thumb screw passing through the slot handle and itself so as to form a
fulcrum joint. The blade works in the slot and is slightly concave on the side
next the bottom serrations of the slot and has a cutting edge next the slot-cutting
edge.
The handles are fitted with a spring.
The instrument is used for removing the testicles of animals by severing the
spermatic cords and arteries above them, by first crushing the cord nearest the
scrotum of the animal by the concave side of the blade coming in contact with
the serrated edge of the slot and then as the pressure is continued by the
operator by cutting off the cord with the testicle attached by means of the
cutting edge of the blade coming in contact with the cutting edge of the slotted
handle.
It sometimes however happens that the crushing of the cords and arteries has
not been of such a nature as to effectually control hæmorrhage and the animal often
dies as a result.
My modification similar in other respects to "The Blake Castrator" instead of
having a smooth blade has one serrated over its top surface and on the side next
to the serrations of the slot by which arrangement the cords and arteries will be
more effectually crushed and as a consequence hæmorrhage prevented.
I do not limit myself to the amount or place of serrations as they may be added
on the inside of slot neither do I confine myself to any particular shape of slot or
blade.
Dated this Tenth day of June 1893.
COMPLETE SPECIFICATION.
Improvements in Castrating Instruments.
I, CHARLES HENRY HUISH, of 31 Mundania Road, Honor Oak, in the County
of Surrey, Maker of Surgical Instruments, do hereby declare the nature of this
0 invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :—
My invention relates to improvements in castrating instruments, and is a modified

page_text: and improved form of "The Blake Castrator" made by me and the said instrument
is fully described hereinafter in this Specification.
The object of my invention is for the purpose of removing of the testicles of
various animals by severing the spermatic cords and arteries above them and to so
⚫ crush the cord nearest the scrotum of the animal to prevent bleeding.
1 attain these objects by the mechanism illustrated in the accompanying
drawings, in which-
Fig. 1, is an elevation of the forceps open.
Fig. 2, is a view of the slot with the serrations on the bottom of one side of the
slot, and the convex serrated disc fitted inside the said slot.
Fig. 3 is a view of the knife or cutting side of the forceps closed.
Fig. 4, is an elevation of Fig. 1, closed.
Fig. 5, is a side view of Fig. 6.
Fig. 6, is an elevation of the forceps open of an alternate pattern.
Similar letters refer to similar parts throughout the several views.
Parts of the figures are broken off for convenience.
This invention consists of a powerful pair of crushing and cutting forceps a used
for the removal of testicles of various animals. These forceps a are about ten
inches long the end of one handle terminating in an oblong piece of steel 3 inches
by of an inch by of an inch having a central slot & the bottom being serrated
on one side at c and having a cutting edge d on the other. The other handle
terminates in a stout curved blade e about of an inch thick and is fitted by means
of a thumb screw passing through the slot handle and itself so as to form a
fulcrum joint. The blade e works in the slot 6 and is concave on the side next the
bottom serrations of the slot and has a cutting edge g next the slot cutting edge d.
The handles may be fitted with or without a spring.
The blade e has also a serrated ledge i on the side which when closed in position
convex teeth of which will exactly fit into the concave teeth of the serrations c of
the bottom of the slot of the instrument, and in addition the convex teeth ; of the
blade e itself will exactly lit into the concave teeth of a convex piece of zinc metal k
fixed in the slot b. Another form of my instrument may have a longitudinal
serrated ridge or convex teeth jrunning along its entire length which will fit into
a slot in the convex piece of zinc k by which arrangements the artery and cord will
be more completely stretched and their mouths more effectually crushed.
For asceptic purposes the side of the slot is fixed by a screw m and pins n
going through the slot and metal disc which also will secure this to the instrument.
If preferable I may make the forceps a as in Figs. 5, and 6, in various pieces
screwed together with the serrated pieces and the serrated curved blade working
on a centre più o and operating together in the corresponding serrations and cutting
edges.
The instrument of either pattern is used for removing the testicles of animals by
severing the spermatic cords and arteries above them, by first crushing the cord
nearest the scrotum of the animal by the concave side of the blade coming in
contact with the serrated edge of the slot, and then as the pressure is continued by
the operator by cutting off the cord with the testicle attached by means of the
cutting edge g of the blade e coming in contact with the cutting edge d of the slot
handle. By the use of the Blake castrator it has sometimes however happened
that the crushing of the cords and arteries has not been of such a nature as to
effectually control hæmorrhage and the animal becomes a source of anxiety
to the owner and operator and sometimes dies as a result of the excessive
bleeding.
"
My modification similar in other respects to the "Blake castrator instead of
having a smooth blade has one serrated over its top surface and a serrated ledge
fixed on its side as on the side next to the serrations of the slot and also a
convex serrated disc fitted inside the slot which fits into the blade serrations by
which arrangements the cords and arteries will be more effectually crushed and as
a consequence hæmorrhage prevented.

page_text: I do not limit myself to the amount of serrations as they may be added in the.
inside of the slot or other parts, neither do I confine myself to any particular shape
of the slot or blade.
Having now particularly described and ascertained the nature of my said inven--
tion and in what manner the same is to be performed, I declare that what ]
claim is :-
1. In a castrating instrument, the combination of the forceps a with the central
slot serrated on one side c the knife edge d convex serrated piece of metal k
side and the curved blade with cutting edge g convex teeth ; and serrated
ledge i, substantially as herein described and according to Figs. 1, 2, 3, and 4, of
the accompanying drawings.
2. In a castrating instrument, the combination of the forceps a with the central
slot serrated on one side c the knife edge and serrated piece of metal k and
the curved blade e with cutting edge 9 convex teeth ; and serrated ledge i, sub-
stantially as herein described and according to Figs. 5, and 6, of the accompanying
drawings.
3. In castrating instruments, the combination of the various parts as hereinbefore-
described and illustrated.
20
J. P. BAYLY,
18, Fulham Place, W., Agent for the Applicant.