Introduction of medical syringe

A medical syringe manufacturers comprising: an outer housing having forward and rear end portions

, a syringe manufacturers barrel of curvilinear cross-section slidable in the outer housing, a seal in a forward portion of the outer housing, a hollow needle extending forwardly from the syringe manufacturers barrel and movable therewith to penetrate the seal member and extend outwardly of the syringe manufacturers body, spring means between the syringe manufacturers barrel and a forward wall portion of the housing, a plurality of spaced-apart stops defined on an upper portion of the outer housing, and a control handle movable relative to the syringe manufacturers barrel, and means to engage any of the respective stops for the selective positioning of the needle to extend the needle beyond the forward end portion of the housing and to retract the needle within the housing end portion, manual pushing on the handle thus converting the syringe manufacturers between a needle device or system and a needle-less device or system, the user presses down on the handle spring means to move the needle from its outward position rearwardly into the housing.

Introduction of medical syringe

By: eric

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