Controlled delivery syringe device

A technology for syringes and syringe barrels, which is applied in the direction of syringes, hypodermic injection devices, infusion sets, etc., and can solve problems such as withdrawal

Active Publication Date: 2020-01-17
BECTON DICKINSON & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if the syringe is left unattended while connected to the circuit, the bung may exit the barrel due to pressure in the circuit

Method used

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  • Controlled delivery syringe device
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Examples

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Embodiment Construction

[0032] The following description is provided to enable those skilled in the art to make and use the described embodiment, which is contemplated to carry out the invention. However, various modifications, equivalents, modifications and substitutions will be apparent to those skilled in the art. Any and all such modifications, variations, equivalents, and alternatives are intended to fall within the spirit and scope of the invention.

[0033] For purposes of the following description, the terms "upper", "lower", "right", "left", "vertical", "horizontal", "top", "bottom", "lateral", "longitudinal" and Its derivation shall refer to the invention as oriented in the drawings. However, it should be understood that the invention may have various alternative modifications unless expressly specified to the contrary. It should also be understood that the particular devices shown in the drawings and described in the following specification are merely exemplary embodiments of the inventi...

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Abstract

A controlled delivery syringe device includes a syringe barrel having a proximal end and distal end which defines a chamber for containing an injectable material. A plunger rod is associated with thesyringe barrel and a plunger is secured thereto which is axially movable within the syringe barrel. A plurality of equally and sequentially spaced periodic features are associated with the plunger rodand a counter member is engageable with the periodic features. Application of a distally directed force to the plunger rod results in disengagement and reengagement of the counter member with the sequentially spaced periodic features on the plunger rod, enabling advancement of the plunger rod and plunger in the syringe barrel while providing tactile feedback of dose progression of the injectablematerial. A method of retrofitting a syringe with a device for injecting a metered dose of injectable material is also provided.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to U.S. Provisional Application No. 62 / 485,056, filed April 13, 2017, entitled "Controlled Delivery Syringe Device," the entire disclosure of which is hereby incorporated by reference. technical field [0003] In general, the present application relates to a syringe for the controlled delivery of metered doses of an injectable product, and more particularly to a syringe that includes a Features to assist in the delivery of medications, and more particularly, this application relates to syringes that include tactile feedback features for dose progression and other features that, during use with a medical device, prevent Catastrophic backflow caused by line pressure. Background technique [0004] Dose dividing delivery devices are known for dividing an injectable material into sub-doses for injection through a needle, such as for delivering medicines, vaccines and the like. One such exa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/315
CPCA61M5/315A61M2005/31508A61M5/31501A61M5/31511A61M5/31568A61M5/31595A61M2207/00
Inventor M·德斯帕M·费里特A·马丁
Owner BECTON DICKINSON & CO
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