Introduction Of Medical Syringe

The syringe manufacturers of the invention is versatile in other respects

. Conversion from a needle system to a needle-less system or vice versa is readily accomplished by manipulating a control handle without touching the needle, thus greatly reducing the risk of accidentally sticking the operator with the needle. Removal and replacement of a needle are eliminated. The conversion from a needle system to a needle-less system and vice versa may be repeated again and again for a single patient in accordance with the patient's needs. A needle may be used repeatedly without removal from the syringe manufacturers, thus eliminating the discarding of many needles, and the attendant high costs of such discarding. To dispose of the syringe manufacturers or when the syringe manufacturers is temporarily out of service, the needle is readily retractable into the syringe manufacturers housing by operation of the handle. The foregoing advantages and convenience save substantial medical professional time in assembling and filling of syringe manufacturerss. The capability provided by the syringe manufacturers of the invention can avoid delays and is even life-saving in some circumstances.

In a preferred embodiment, the present invention comprises a syringe manufacturers barrel slidable in an outer housing, a hollow needle extending forwardly from the syringe manufacturers barrel and movable with the barrel to penetrate a resilient member and extend outwardly from the housing. A control handle is pivotally mounted and has means to engage any of a plurality of spaced-apart stops or notches for the selective positioning of the needle to extend it beyond the forward end of the housing or to retract the needle within the housing.

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.

by: ericfu

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