Abdominal puncture device with improved seal assembly

The invention discloses an abdominal puncture device with an improved seal assembly, and belongs to the field of medical apparatus. According to the abdominal puncture device, the gradient of the valve wall of a choke valve decreases gradually from the central opening of the valve wall to the periph...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	TONG XIAODONG, ZHENG HONGLIAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	DIAGNOSIS HUMAN NECESSITIES HYGIENE IDENTIFICATION MEDICAL OR VETERINARY SCIENCE SURGERY
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