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Front passivated winged device with protective cover driven by blade spring

A technology of leaf spring and driving mechanism, which is applied in the field of concealable needle devices, and can solve problems such as complex operation and difficult manufacturing of existing technologies

Active Publication Date: 2007-04-11
BECTON DICKINSON & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Such prior art is often difficult to manufacture and requires complex operations to make it work

Method used

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  • Front passivated winged device with protective cover driven by blade spring
  • Front passivated winged device with protective cover driven by blade spring
  • Front passivated winged device with protective cover driven by blade spring

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0026] Referring to the drawings, in all of which the same parts or parts are indicated by the same reference numerals, Fig. 1 shows a blood collection device in the form of a winged device comprising a shieldable needle device according to the present invention and related structures. The present invention may generally be described in terms of a shielded needle assembly. FIG. 1 shows a shieldable needle arrangement in the form of a blood collection set 10 comprising a shieldable needle arrangement 12 . Although described herein in terms of an embodiment of a blood collection device, the shieldable needle device of the present invention may be used or incorporated in other medical devices that are connected to needles, such as hypodermic syringe assemblies, hypodermic needles, , a two-ended needle assembly for blood collection, an intravenous infusion set, or other delivery or medical device assembly that includes a piercing member.

[0027] As shown in Figure 1, the blood ...

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PUM

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Abstract

A shieldable needle device is provided. The shieldable needle device includes a housing, a needle cannula, a tip guard and a flexibly resilient drive mechanism. The housing includes a first lateral extension and a second lateral extension which are interconnected at a rearward end to form a hub portion from which the needle cannula extends. The tip guard telescopes over the needle cannula from a retracted position to an extended position. The drive mechanism is attached to the tip guard and is bent or coiled within the housing between the first and second lateral extension and retained in the bent or coiled position. Upon release of the drive mechanism, the tip guard is moved from a retracted position to an extended position, thereby protectively surrounding a tip of the needle cannula.

Description

technical field [0001] The present invention relates to a safety needle assembly for safe and convenient disposal of needles. More particularly, the present invention relates to shieldable needle devices provided with a safety shield for preventing forward movement of a used needle tip. Background technique [0002] People use disposable medical devices provided with medical needles to inject drugs or to withdraw fluids from a patient's body. Such medical devices typically include blood collection needles, fluid delivery needles, and components thereof. Current medical practice requires that the fluid container and needle assembly used in such devices be low cost and convenient for single use and disposal. Accordingly, existing blood collection devices typically employ some form of durable, reusable holder onto which a removable and single-use medical needle and fluid collection tube can be mounted. A blood collection device of this nature may be assembled prior to use an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/15A61M5/32A61B5/145
CPCA61M2005/325A61M2005/3249A61M5/3275A61M25/0637A61B5/1411A61M25/0625A61M5/3257A61B5/14A61B5/15003A61B5/150259A61B5/150389A61B5/150473A61B5/150503A61B5/150564A61B5/150572A61B5/150587A61B5/150656A61B5/150717A61B5/15074A61B5/153
Inventor B·维尔金森C·M·牛比
Owner BECTON DICKINSON & CO