CHEMICAL SOLUTION PUMP AND CHEMICAL SOLUTION ADMINISTRATION DEVICE

The present invention relates to a chemical solution pump including a holding member that holds a syringe discharging a chemical solution in association with a movement of a plunger, a drive unit that presses the plunger with a predetermined driving force to move the plunger in a first direction tow...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SATO, Akehiko, NAGATA, Tetsuya, ENDO, Yoichi
Format:	Patent
Sprache:	eng
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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Beschreibung
Zusammenfassung:	The present invention relates to a chemical solution pump including a holding member that holds a syringe discharging a chemical solution in association with a movement of a plunger, a drive unit that presses the plunger with a predetermined driving force to move the plunger in a first direction toward an inside of the syringe, and an adjustment mechanism that adjusts the movement of the plunger so that the plunger moves with the driving force. The adjustment mechanism applies an auxiliary force to the plunger in a direction the same as the first direction, or applies a reaction force to the plunger in a second direction opposite to the first direction, in accordance with a difference between a resistance force generated by the movement of the plunger inside the syringe and the driving force.