. Manual of operative veterinary surgery. Veterinary surgery. 14:0 ELEMENTARY OPERATIONS. handle rests on the back of the hand, with the fingers slightly flexed. The joint, brought close to the skin, and perpendicular to it, is thrust by the extension of the fingers through the tegument and tissues underneath and then drawn out perpendicularly, un- less it is desirable to iacrease the size of the incision, when the division is made by extending the incision from within outward. Puncture toith the Straight Bistoury.—The bistoury, for this purpose, must be finely pointed and sharp. Held as a wri
. Manual of operative veterinary surgery. Veterinary surgery. 14:0 ELEMENTARY OPERATIONS. handle rests on the back of the hand, with the fingers slightly flexed. The joint, brought close to the skin, and perpendicular to it, is thrust by the extension of the fingers through the tegument and tissues underneath and then drawn out perpendicularly, un- less it is desirable to iacrease the size of the incision, when the division is made by extending the incision from within outward. Puncture toith the Straight Bistoury.—The bistoury, for this purpose, must be finely pointed and sharp. Held as a writing pen, with its edge upward or downward, or as a table-knife, accord- ing to the thickness of the tissues, and its action limited by having the fingers at a given distance from the point, it is pushed per- pendicularly and more or less rapidly at once to the necessary- depth. It is then drawn out, unless the incision is to be enlarged, which is done by a motion from within outward by the blade. Sometimes the instrument is pushed into the tissues in an oblique, instead of a perpendicular direction, when it is not desirable to have communication between the opening of the skin and the one directly beneath it. This constitutes the first step of the subcutaneous Fig. 175.—Trocar and Canula. Puncture with the Trocar. — This instrument is composed of two parts. A rod, secured to a firm handle at one extremity and terminating at the other in a tri-faced point, is one; this rod fits into a canula, blunt at one end and having at the other a cup- shaped flange, which is the other part. The canula is long enough to receive the entire length of the rod, except the tri-faced point, which projects beyond it. The two parts are fitted closely together. Trocars are of various size and form, being both straight and curved. That which is used for hyovertebrotomy is the longest of all; those used for rumenotomy are quite large in diameter; the enterotome is, on the contrary, qu
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectveterin, bookyear1892
