DISEASES FROM SEPTIC INFECTION OF WOUNDS 



367 



pair of forceps, including the blood vessels, and tying it behind the 

 point of the instrument with a ligature. When the bleeding end of a 

 blood vessel is located in very firm tissue, out of which it cannot be 

 drawn far enough to ligate, we pick up the blood vessel with the end of 

 the forceps, draw it out as far as possible, and twist it in a spiral direction; 

 by this means we usually succeed in controlling the hemorrhage. If, 

 however, the above does not answer, we pass a thread through the 

 tissue underneath the blood vessel and tie it tightly, and by this means 

 close the opening. 



Compression is sometimes used as a means of stopping hemorrhage. 

 This we can accomplish by pressure of the finger above the bleeding 

 region, or, if it is an extremity, ligate the member above the part by 



Fig. 118.— Different forms of stitches used in the dog and method of tying: a, head-stitch; 6, 

 cjntinuous oblique stitch with cross-stitch; c, deep continuous cross stitch; d, mattress-stitch; e, but- 

 ton and interrupted stitch. 



means of a rubber band or tube, or even a handkerchief. Another means 

 of stopping a hemorrhage is by using a cauterizing iron (thermo-cautery). 

 These, however, should only be used in wounds where you do not expect 

 healing by first intention. All agents which have the property of stopping 

 hemorrhages, as a rule, coagulate or draw the tissues in such a way as to 

 prevent healing by first intention. 



Capillary or slight subcutaneous hemorrhages can be stopped by 

 pressure or irrigation with cold water. Hot water is also sometimes used 

 to control hemorrhage. 



