The problem to be solved is to infuse solutions like vasopressin into the fibroid or the like during laparoscopic surgeries to constrict blood vessels for making clean and bloodless field for surgery, without directly infusing the vasopressin into the blood vessels, which are very small and thin walled, and the problem is solved by providing an infusion device (100) as in present invention that includes a hollow needle (120) with a tube (130) that confirms puncturing of blood vessel by observing blood through the tube (130), as a result of which the hollow needle (120) is withdrawn from the blood vessel and repositioned on the visceral organ, and this repositioning continues till no blood is observed in the tube (130), thereafter the vasopressin is infused by the infusion device (100) into the tissue mass, thus ensuring that the solution like vasopressin is infused into the fibroid and not directly into the blood vessel. Figure 1 is the representative figure.
