Mohiddin Rida Dimashkieh,Mohammad Ibrahim Al Obaida
申请号：
US13822627
公开号：
US20130184678A1
申请日:
2010.10.11
申请国别(地区):
US
年份:
2013
代理人:
摘要：
In one aspect, a dual action syringe includes an external body having a distal end defining an anesthetic gel receptive concavity surrounding a needle passage through the distal end. The external body also includes a proximal end defining a plunger receptive passage. An internal body is slidably disposed in the external body. The internal body receives a needle in a distal end of the internal body and an anesthetic carpule to provide fluid flow communication between the carpule and the needle in response to pressure on the plunger. A biasing member is disposed in the external body, between the external body and the internal body, biasing a distal end of the needle away from the distal end of the external body into the external body whereby, pressure on the plunger first moves the needle through the needle passage and subsequently provides fluid flow communication between the carpule and the needle.
