Positive pressure cavity type remaining needle and method of preventing thrombi through positive pressure cavity type remaining needle

Positive pressure cavity type remaining needle and method of preventing thrombi through positive pressure cavity type remaining needle

  • CN 105,251,081 A
  • Filed: 11/18/2015
  • Published: 01/20/2016
  • Est. Priority Date: 11/18/2015
  • Status: Active Application
First Claim
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1. a malleation cavate remaining needle, it is characterized in that:

  • comprise indwelling needle, indwelling flexible pipe, puncture needle and transfusion needle, one end of indwelling needle is provided with medicinal liquid delivery outlet, indwelling flexible pipe is connected with the medicinal liquid delivery outlet of indwelling needle, the other end of indwelling needle be puncture needle and transfusion needle penetrate end, described puncture needle, penetrate in indwelling needle in order to the end that penetrates from indwelling needle, pass from indwelling flexible pipe through medicinal liquid delivery outlet, attached retention is put flexible pipe and is penetrated vein blood vessel, tube sealing plug and sealing plug is provided with in described indwelling needle, one end of described tube sealing plug is close to medicinal liquid equipped at outlet port and is closed by medicinal liquid delivery outlet, described sealing plug is positioned at and penetrates end, when being in indwelling state, cavity in indwelling needle between tube sealing plug and sealing plug is the malleation chamber being full of liquid, the pin hole that by puncture needle or transfusion needle formed of liquid in malleation chamber in tube sealing plug penetrates in indwelling flexible pipe, and the liquid in malleation chamber can not through sealing plug to indwelling needle exosmosis.

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