Continuous positive pressure indwelling needle and installation and using method thereof
A technology of continuous positive pressure and indwelling needles, applied in needles, instruments introduced into the body, etc., can solve the problems of increasing the work intensity of medical staff and losing precious blood, and achieves convenient clinical operation and monitoring, does not affect carrying, avoids risks and inconvenient effect
Active Publication Date: 2015-11-18
BEIJING FERT TECH
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Abstract
The invention provides a continuous positive pressure indwelling needle and an installation and using method thereof. The continuous positive pressure indwelling needle is formed by assembling a continuous positive pressure device and an indwelling needle body into a whole. The continuous positive pressure device comprises a screw fitting, a protective cover, a supporting cylinder, a silica gel liquid storage bag and one or more layers of hollow nanometer films. The hollow nanometer films are placed into an inner cavity of the adhesive end of the supporting cylinder and fixed together through a sealing object. The supporting cylinder and the screw fitting are adhesively connected and fixed. The opening ends of the hollow nanometer films are opposite to a liquid outlet of the screw fitting. The supporting cylinder is sleeved with the silica gel liquid storage bag. The upper closed end of the silica gel liquid storage bag is installed in a liquid adding hole in the upper end of the protective cover. The screw fitting and the protective cover are welded into a whole. According to the continuous positive pressure indwelling needle, continuous positive pressure can be achieved for a long time, the positive pressure state can be kept for a long time after liquid is added one time, and liquid can be added repeatedly, so that blood entering an indwelling needle catheter flows slowly, the amount of blood entering the catheter is decreased, and then the phenomenon that thrombi block a vessel is avoided.
Application Domain
Infusion needles
Technology Topic
Needle catheterInternal cavity +6
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Example Embodiment
PUM
Property | Measurement | Unit |
Wall thickness | 10.0 ~ 100.0 | µm |
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