AUTOMATIC CANNULA WITHDRAWING DEVICE FOR INJECTION SYRINGES

AUTOMATIC CANNULA WITHDRAWING DEVICE FOR INJECTION SYRINGES

PCT No. PCT/CH96/00243 Sec. 371 Date Dec. 12, 1997 Sec. 102(e) Date Dec. 12, 1997 PCT Filed Jul. 2, 1996 PCT Pub. No. WO97/02060 PCT Pub. Date Jan. 23, 1997An automatic needle retraction device includes a housing and retraction device for completely retracting a needle back into the housing after us...

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Bibliographische Detailangaben
Hauptverfasser: CALLENBACH, TILO, BUETTGEN, HEINZ, VUILLE, DANIEL, BURGER, KONRAD, RIESEN, DANIEL, MAZENAUER, KARL
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
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Zusammenfassung:PCT No. PCT/CH96/00243 Sec. 371 Date Dec. 12, 1997 Sec. 102(e) Date Dec. 12, 1997 PCT Filed Jul. 2, 1996 PCT Pub. No. WO97/02060 PCT Pub. Date Jan. 23, 1997An automatic needle retraction device includes a housing and retraction device for completely retracting a needle back into the housing after use. A selector switch device includes an equalization part, which produces a negative pressure to accept the fluid compressed during the retraction of the hollow needle. Thus, during retraction of the needle, compressed injection solution is not sprayed outward from the needle.