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Needles and related assemblies and methods

An associative, needle-guiding technology, applied in needles, puncture needles, puncture needles, etc., to solve problems such as catheter damage, tissue damage, difficulty in removing the catheter from the needle, etc.

Inactive Publication Date: 2018-08-21
CUSTOM MEDICAL APPL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Further, a catheter or catheter inserted through a needle may be cut or severed by a sharp edge located on the tip of the needle or a chisel-shaped sharp point, making it difficult to remove the catheter from the needle or causing it to be Damage to surrounding tissue from a partially severed urinary catheter
[0005] Also, many conventional introducer needles have relatively wide cutting edges due to the large opening of the orifice or hole formed in the introducer needle that requires introduction of the catheter and catheter
However, this relatively wide cutting edge often damages the subject's tissue when the introducer needle is inserted into the subject

Method used

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  • Needles and related assemblies and methods
  • Needles and related assemblies and methods
  • Needles and related assemblies and methods

Examples

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Embodiment Construction

[0024] The illustrations presented herein are not necessarily intended to be actual illustrations of any particular device, assembly, system, method, or component thereof, but are merely idealized representations used to describe embodiments of the present disclosure. In addition, common elements between figures may maintain the same reference numerals.

[0025] As used herein, when referring to a given parameter, property, or condition, the term "approximately" means and includes the extent to which a person of ordinary skill in the art would understand that the given parameter, property, or condition satisfies a degree of variation , such as within acceptable manufacturing tolerances. By way of example, depending on the particular parameter, attribute, or condition that is substantially satisfied, the parameter, attribute, or condition may be at least 90.0% satisfied, at least 95.0% satisfied, at least 99.0% satisfied, or even at least 99.9% satisfied.

[0026] figure 1 An...

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Abstract

Needles include a cannula defining a bore within the cannula, a distal opening of the bore of the cannula, and one or more of at least one protrusion or an enlarged rounded surface on a proximal surface of the needle proximate the distal opening and at least one chamfered surface positioned proximate a tip of the cannula. Methods include forming at least one protrusion on a distal portion of a needle bordering a distal opening of the needle.

Description

[0001] priority statement [0002] This application claims the benefit of US Provisional Patent Application Serial No. 62 / 250,866, filed November 4, 2015, the entire disclosure of which is hereby incorporated by reference. technical field [0003] The present disclosure relates generally to the field of medical devices and related methods. In particular, the present disclosure relates to needles ( For example, guide needles) and related components and methods. Background technique [0004] Implantable medical devices (eg, medical therapy delivery devices), such as urinary catheters and catheters, may be employed for a variety of therapeutic and diagnostic purposes. Controlled placement and maintenance of the therapy delivery member in a subject is highly desirable as precise placement and retention will result in increased treatment efficiency and / or reduced side effects. However, because the introducer needle as a whole has a sharp point or chisel-shaped sharp point and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/34A01M5/00A61M5/158A61M5/32A61M25/06
CPCA61M25/065A61B17/3401A61B2090/08021A61M5/3286A61B2090/0801A61B17/3421A61B2017/3454A61M2207/10A61M5/32
Inventor N·桑多尔·拉奇
Owner CUSTOM MEDICAL APPL
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