<p>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.</p>
申请公布号
WO2012050557(A1)
申请公布日期
2012.04.19
申请号
WO2010US52195
申请日期
2010.10.11
申请人
KING SAUD UNIVERSITY (KSU);HART, BRIAN G.;DIMASHKIEH, MOHIDDIN RIDA;AL OBAIDA, MOHAMMAD IBRAHIM
发明人
DIMASHKIEH, MOHIDDIN RIDA;AL OBAIDA, MOHAMMAD IBRAHIM