Negative-pressure bomb pumping device

• Main Authors: ZHENG QIUHONG, YAO QINGHUA, LIN YOUYAN
• Format: Patent
• Language: Chinese; English
• Published: 18.01.2022
• Subjects: BABY COMFORTERS; CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICALPURPOSES; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; DEVICES FOR RECEIVING SPITTLE; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGINGPHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL ORADMINISTERING FORMS; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE

The utility model discloses a negative pressure bomb pumping device which comprises a shell, a sleeve is fixedly connected to the inner wall of the shell, one end, far away from the shell, of the sleeve is communicated with a connector, a piston is arranged in the sleeve, a support is fixedly connected to the interior of one side, far away from the connector, of the piston, and a connecting rod is rotationally connected to the tail end of the support through a pin shaft. According to the negative pressure extraction and ejection device, through cooperation of the sleeve, the piston, the support, the connecting rod and the connector, a needle cylinder can be replaced for negative pressure extraction and ejection of a nutrient canal, the problem of blockage is solved, manual operation is replaced, and the problem of hand ache caused by manual operation of medical staff is avoided; the negative-pressure extraction device is simple in structure and convenient to use, the negative-pressure extraction force is adju