Improvements in Veterinary Obstetric Instruments.
Year: 1898

page_text: Date of Application, 16th Mar., 1898
1899
Complete Specification Left, 16th Dec., 1898-Accepted, 16th Mar.,
Improvements in Veterinary Obstetric Instruments.
JOHN POLLOCK, F.R.C.V.S., Veterinary Surgeon, Chapelfield Road, Norwich,
CHARLES HENRY HUISH, Surgical Instrument Maker, 8, Fisher Street, London,
W.C., do hereby declare the nature of this invention to be as follows:-
A set of obstetric instruments to be used in veterinary surgery consisting of a
double barrelled ecraseur fitted with chain saw plain chain pleated or twisted or
plain wire plain cutting wire band a guillotine two serrated embryotomes to fit on
the end of the tube of the said ecraseur. Also spring bands looped at ends to be
used in conjunction with the other instruments in the set or for placing the ecraseur
chains traction rope cord or wire bands round or under any part of the foetus. The
instruments to be made of steel-phosphor bronze or other suitable material and the
bands to be made of flat oval square or round steel vulcanite celluloid copper or
other suitable material.
A combination instrument to fit on the end of a stem to be used as an ear nose
neck or limb forceps.
Fitted with sharp and blunt hooks and forcep ends also with universal joint to
permit free motion and easy screwing power.
The said instruments to be made of steel phosphor bronze rustless steel aluminum
or its alloys kron and or other suitable metal or material.
JS 1000
JOHN POLLOCK, F.R.C.V.S., Norwich,
CHARLES HENRY HUISH.
Improvements in Veterinary Obstetric Instruments.
JOHN POLLOCK, F.R.C.V.S., Veterinary Surgeon, 85, Chapel Field Road, Norwich,
Norfolk, CHARLES HENRY HUISH, 8, Fisher Street, Red Lion Square, London, W.C.,
Surgical Instrument Maker, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:-
This invention has reference to veterinary obstetrical instruments, designed for
use in the most difficult, and hitherto unmanageable cases of embryotomy. The
instruments hereinafter described constitute a set consisting of several parts to be
used separately or in conjunction. For identification and convenience these parts
are named as follows. Fig. 1 porte spring band. Fig. 2 and 2ª double barrelled
ecraseur and chain. Fig. 2 guillotine. Fig. 2º embryotome and Fig. 2" com-

page_text: pound forceps for laying hold of limbs &c. This will be seen by reference to draw-
ings accompanying these specifications and to which we will now rofer.
All the drawings represent a full front view of the instruments and parts
thereof.
Fig. 1 is a representation of porte spring band.
The band is made of flit, round, oval or square steel, vulcanite or other suitable
material, so tempered and flexible that it can be drawn straight, and again recoil to
original circular shape. The band has rings or loops at ends and b. The rings
are placed at right angles to each other, so that the operator can choose the
end most suitable for his purpose when passing it into uterus, to encircle neck, body
or limb of foetus. The band is indispensable for placing the traction cord and
ecraseur chain (Fig. 2) around the part of footus to be severed, and is used in cou-
junction with Fig. 2 of the set.
Fig. 2 represents the chain already referred to, the links of which are deeply
serrated (like a saw) for cutting purposes. The end links of chiu a and b are for
attachment to screw nuts c and on Fig. 2.
Fig. 2 is the double barrelled ecraseur, formed by two tubes united together.
On the extreme point of long barrel the gate end a is fixed; through the slot of
which when instrument is in use, the chain ends a and b of Fig. 2 are passed. In
each of the tubes forming the barrels of this instrument, there is a groove cut,
running from end to end to permit sliding of the screw nuts c and d. The handle
end m is formed on the same rod as screw and pinion h so that by turning handle m,
pinion and screw e are also turned.
The screw e of short barrel on right hand side of the figure is brought into
motion by the use of clutch j. The pinion i is loose and unattached to screw rod e
unless the nut k is screwed up tight on serow & causing the clutch; to be put into
gear and thus holding the pinion i fast. By this arrangement the right hand screw e
can be made to turn in the opposite direction from long screw e.
This instrument has a triple action in itself. Action (No. 1) is produced, by
fixing chain ends a and b of Fig. 2 on the screw nut e of long barrel. By turning
handle froin left to right, the chain is drawn in by botu cuds a and b at one time.
Action (No. 2) is brought about by fixing chain end a on screw nut c, and b end on
nut; at the same time keeping pinion loose on screw rode by screwing back
nut from right to left, and bringing clutch j out of gear. If handle m is now
turned from left to right, the chain is drawn in by a end only, end 6 remaining
fixed as screw e of short barrel is unturned. The movement produced is simple
saw action of chain in one direction around the part of foetus about to be cut.
Action (No. 3) is most needful as considerable strain is put on chain by actions
(1 and 2). Should the strain be too severe, the chain would snap. The snapping
is obviated by netion 3.
"
Assuming chain to be in position as described in action No. 2, and chain drawn
tight around the part, bring action 3 into play by screwing up nk Section 2 A A.
on serew. This nats pinion and clach to gear. Pinion is now a fixture to
screw real 1.
istared to to right, screw nute w.ald travel
along screw drawing ein end in, whilst chain end b is let out by screw nut /
with the same rapidity. Reverso the handle at movement, and chain end b is drawn
in, whilst end is let out. This movement is perfect saw action around the part
of foetus about to be severed. These actions (2 and 3) are at the immediate
command of the operator, and can be brought into play at once when required. The
arms fare for holding the instrument steady when in use.
Fig. 2 is the guillotine which consists of a tubular stem with steel rod g
passing down its interior. This rod is moved out and in by means of screw on end
of rod and turning handie f. The cutting knives a and b stand at right angles on
end of stem d. Knife is attached to inner rod g. The other kuife b is attached
to sheath c. The knives pass each other like a pair of scissor blades when handle f
is turned.
Handles ce are for holding instrument steady when in use,

page_text: When a more powerful tubular stem is required, the steel rod g with knife a is
withdrawn from Fig. 2B; also sheath c with knife b is removed from tubular
stem d. These parts ag and b c are placed in position in Fig. 2 in manner
following. First remove screw 6 from Fig. 2 and take off gate a. (2) remove
screw g and withdraw screw e from long barrel. Now put bc of Fig. 2 on end of
Fig. 2 and fix by screw b. The rod and knife ag of Fig. 2B is then to be placed
down the ecraseur tube, and the handle f of Fig. 2" applied to screw at end of
rod g. The ecraseur now becomes the guillotine.
Fig. 2 is the serrated embryotom composed of tubular stem g with steel rod j
passed down its interior. This rod is moved out and in by means of screw on its
end when handle is turned. The serrate.l cutting blades ab are attached to end
of rod j by means of a joint or hinge.
On each blade there is a groove c for
screw d to work in. When handle i is turned from left to right the blades are
closed. When turned from right to left the blades are opened, in virtue of the
point of screw pressing into groove c in blades, causing the blades to keep close
to sides of flattened boll end e of sheath f. The handles are for holding the
instrument steady when in use.
This instrument like Fig. 2 can be joined to part of Fig. 24 when strength
is required. The steel rod j with attached blades a and b are withdrawn from
tube g. The sheath f is also removed from stem g. The sheath fe is next fixed
on end of long barrel of Fig. 2. The steel rod jis then placed down interior of
ecraseur tube and handle i applied to screw on end of j. Ecraseur now becomes
a powerful embryotom.
The serrated edges of blades a and b prevent slipping of part of foetus about
to be cut.
Fig. 2 is a compound instrument known as ear nose or limb forceps for use in
conjunction with other instruments in the set, to hold foetus during obstetrical
operation, or for fastening upon and removing parts cut by ecraseur.
b
It is composed of various parts. Handle or stem a attached to universal joint b.
The universal joint permits of free motion of instrument and allows screw to
work at any angle. The forceps may be placed in during operation.
Attached to universal joint is cone c with hole in centre for passage of screw d.
The cone c when screwed close up on screw d between arms f causes arms to be
pressed wider apart, and tightens the ear nose or limb forceps.
By relaxing the cone backwards from right to loft, the arms f are allowed to
close and so permit forceps arms to be widened. Point e of arms has a hole
which is screwed for reception of parts h of ear forceps g, nose forceps i, limb
forceps j and k.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is:—
(1) Originality of design in porte spring band Fig. 1 as described in Specifica-
tion. The instrument as part of a set is capable of use alone or conjointly. It is
novel in every detail, and is the only up to date appliance capable of rendering
difficult obstetrical cases easy by providing means for carrying cord or ecraseur
chain Fig. 2 around foetus. It is further claimed that ear, nose, and limb forceps
with universal joint, cone, and various fittings as described heretofore are entirely
novel. The forceps being capable of use at any angle and so constructed as to
hold firmly without fear of injuring uterus.
2nd. That invention No. 2A is entirely novel both in design and action providing
a new, speedy, and safe means of crashing and cutting through various sections of.
the foal or calf on entirely new principles within the uterus.
3rd. Improvements in veterinary surgical appliances for use in obstetrical surgery.
By the combination of several parts of instruments, a new appliance is formed for
amputating and severing foetus by aid of powerful screw action, as the serrated
blades of embryotome and knives of guillotine are brought together rendering it

page_text: possible to successfully and scientifically perform operations hitherto impossible
in veterinary obstetrical practice.
Substantially in the manner and for the purpose as hereinbefore described and
set forth in the drawings.
1000