Huber needle with anti-rebound safety mechanism

a safety mechanism and huber needle technology, applied in the field of medical needle devices, can solve the problems of huber needles being stuck on the huber needle rebound, requiring a large amount of force during huber needle withdrawal to overcome the resistance of the port's septum, and presenting a high risk of pathogen transmission, so as to prevent needle-stick injuries

Inactive Publication Date: 2005-02-03
MEDICAL PROD SPECIALISTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0011] The present invention specifically addresses and alleviates the above-referenced deficiencies associated with the use of the Huber needle guards of the prior art. More particularly, the present invention is an improved, passive safety needle device featuring a sheath assembly which is outwardly deployable relative to the exposed portion of its affixed needle. By such deployment, a physical barrier can be placed ar

Problems solved by technology

More specifically, a great deal of force is required during Huber needle withdrawal to overcome the resistance of the port's septum.
Since a non-dominant hand is typically used in this process to secure the implanted port, it often becomes stuck on the rebound of the Huber needle.
Because a Huber needle is utilized for venous access, such needle-stick injury as described above presents a high risk for pathogen transmission.
However, these home-made guards are not user-friendly as

Method used

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  • Huber needle with anti-rebound safety mechanism
  • Huber needle with anti-rebound safety mechanism
  • Huber needle with anti-rebound safety mechanism

Examples

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second embodiment

[0095] First, although the safety needle device 110 of the second embodiment may utilize a similar or identical needle housing 18 as described above, it may alternatively display its own unique type of needle housing 118 which is aesthetically different therefrom. Such needle housing 118 is exemplified in FIG. 16 and as can be seen from that figure, its outer shape or configuration is substantially similar as its counterpart shown in FIG. 11. One major difference between them, however, is that the needle housing 118 of FIG. 16 eliminates the need for any finger-graspable projections 30 and rather provides a substantially continuous and smooth outer surface in lieu thereof. Furthermore, the needle housing 118 is preferably fabricated from a plastic material and may optionally characterize a transparent or semi-transparent body.

[0096] As illustrated in FIGS. 14 and 15, the safety needle device 110 of the second embodiment additionally utilizes a different type of proximal tip componen...

third embodiment

[0104] Referring now to FIGS. 17 and 19, there is shown another passive safety needle device 150 which is constructed in accordance with a third preferred embodiment of the present invention. The passive safety needle device 150 of the third embodiment is essentially a modified version of the previously defined needle devices 10, 110 and is designed to perform the same function (i.e., deter needle-stick injuries). However, as will be explained below, a different sheath releasing concept is employed for covering the needle 152 in order to protect its users against the dangers of needle-stick injuries.

[0105] But prior to describing the specifics of such unique sheath releasing concept, it should be briefly pointed out herein that the needle housing 154 of the third embodied safety needle device 150 may optionally comprise a layer of padding 156 underneath so as to increase its user-friendliness (e.g., provide softening cushion upon user's chest) during needle applications. However, th...

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Abstract

A safety needle device is provided for protecting a user against needle-stick injuries. This needle device includes a needle housing having a distal housing opening. A needle is disposed within the needle housing and has a distal needle portion which extends away therefrom through the distal housing opening. An elongate sheath assembly surrounds the needle within the needle housing. A biasing member is engaged to the sheath assembly and is configured to apply a force thereupon towards the distal housing opening. The biasing member defines a centerline which is parallel to the needle's distal needle portion. An indexer is engaged to the biasing member and is operative to increase or decrease a spring force of the biasing member by rotating the indexer. A trigger member is engaged to the biasing member for retaining the sheath assembly within the needle housing against the force urging the sheath assembly towards the distal housing opening. The trigger member is sized and configured to release the biasing member. This allows the sheath assembly to transition towards and out of the distal housing opening via the force to thereby enclose the distal needle portion therewith.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] The present application is a continuation-in-part of U.S. patent application Ser. No. 10 / 688,119 entitled “HUBER NEEDLE WITH ANTI-REBOUND SAFETY MECHANISM” filed Oct. 17, 2003, which is a continuation-in-part of U.S. patent application Ser. No. 10 / 375,963 entitled “HUBER NEEDLE WITH ANTI-REBOUND SAFETY MECHANISM” filed Feb. 28, 2003, which is a continuation-in-part of U.S. patent application Ser. No. 10 / 350,765 entitled “HUBER NEEDLE WITH ANTI-REBOUND SAFETY MECHANISM” filed Jan. 24, 2003, which claims the benefit of U.S. Provisional Application No. 60 / 360,406 entitled “HUBER NEEDLE WITH ANTI-REBOUND MECHANISM” filed Feb. 28, 2002, the entirety of the disclosures of which are expressly incorporated herein by reference.STATEMENT RE: FEDERALLY SPONSORED RESEARCH / DEVELOPMENT [0002] Not Applicable BACKGROUND OF THE INVENTION [0003] The present invention relates generally to medical needle devices, and more particularly to an improved, passi...

Claims

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Application Information

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IPC IPC(8): A61M5/00A61M5/158A61M5/32
CPCA61M5/158A61M2005/1581A61M5/3272A61M5/3257
Inventor FLEURY, MICHAEL T.FERGUSON, FERGIE F.HYUN, DONGCHUL D.
Owner MEDICAL PROD SPECIALISTS
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