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Pain free hypodermic needle

A hypodermic injection and needle technology, applied in hypodermic injection equipment, needles, medical science, etc., can solve the problem of incomplete liquid retention on the skin, and achieve the effect of minimizing uncontrolled bleeding

Inactive Publication Date: 2012-10-31
斯坦利金
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if a liquid material is injected into the skin at such a shallow depth, the liquid may not remain completely inside the skin because some of the liquid will flow back through the puncture hole after the needle is retracted

Method used

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  • Pain free hypodermic needle
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  • Pain free hypodermic needle

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Embodiment Construction

[0025] definition

[0026] When used herein, the following terms and variations thereof have the meanings given below unless a different meaning is clearly indicated by the context in which such terms are used.

[0027] "About" means within 20% of a stated parameter or measurement, and preferably within 10% of such parameter or measurement.

[0028] By "bevel" is meant a portion of the needle at the tip that includes an edge at an angle of greater than 90° with respect to the longitudinal axis of the needle, thereby forming a sharp edge for piercing the skin.

[0029] "Hub" means a portion of a needle that is connected at the distal end to the shaft of the needle and includes an opening at the proximal end for connection to a mating portion of a syringe, bottle, or other container for fluids.

[0030] "Hypodermic needle" means a device for expelling fluid into and / or withdrawing fluid from tissue, such as a blood sample, including a hub, shaft, and beveled tip.

[0031] "Inw...

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Abstract

A hypodermic needle having a hub with a distal surface extending at an obtuse angle from a short needle, and a bevel approximately parallel to the distal surface.

Description

Background technique [0001] Injecting liquid materials such as vaccines or insulin can be painful no matter how small the needle size. For children with diabetes, painless acupuncture can greatly help manage diabetes by reducing psychological anxiety. Needless to say, painless needle sticks for drawing sufficient volumes of blood or body fluids for laboratory testing are highly desirable, especially in infants or children who have not yet developed large veins. [0002] Dibiasi taught a short and thin needle for insulin injection, and he introduced a 5 mm long 31 gauge needle for insulin. Although this needle is less painful than other thicker and longer needles, it is by no means painless because it is the needle that penetrates the subcutaneous tissue. Lastovich et al. (US Patent No. 7083592) disclose the use of very small needles such as 0.3mm long, but these needles will be inserted vertically into the skin. [0003] PCT Patent Application No. PCT / US2008 / 070666 describe...

Claims

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Application Information

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IPC IPC(8): A61M5/32A61M5/158
CPCA61B5/150396A61B5/153A61B5/150717A61B5/150519A61B5/150022A61B5/150305A61B5/1411A61M2005/341A61M5/32A61M5/158A61M5/42
Inventor 斯坦利·金
Owner 斯坦利金
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