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Needle for subcutaneous port

A technology of hypodermic injection and needle bar, which is applied in the direction of hypodermic injection equipment, needles, medicine equipment, etc.

Inactive Publication Date: 2011-08-17
GRANTADLER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The aforementioned Huber needle, when adapted to protect a silicone-based venting surface, as shown in element 20 in Figure 2 from Loiterman et al., results in the needle being only able to communicate with the blood-filled lumen 14 near the bottom. Draws blood at an angle at the bottom of the blood stream

Method used

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Embodiment Construction

[0026] To promote and understand the principles disclosed herein, detailed language will now be used to describe the preferred embodiments illustrated in the accompanying drawings. It will be understood, however, that no limitation of the scope of the invention is thereby intended. Variations and further modifications to the illustrated apparatus, as well as further applications of the principles disclosed and illustrated herein, are contemplated as would normally occur to one skilled in the art to which the invention pertains.

[0027]Needles are long hollow tubes that, when one end is placed in a fluid, such as a biological or physiological fluid, draw the fluid through the application of a pressure differential from the drawing end to the opposite end. Within the scope of this disclosure, the word "fluid" includes any biological or physiological fluid, such as blood or urine. The needle has a pointed point designed to pierce or cut into a solid to reach a target, usually b...

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Abstract

This disclosure relates to a new type of needed for a subcutaneous port or for any use where blood is recycled, and more precisely to a needle with reduced friction openings for easing blood and its elements along a passageway made of a through bore in the body of a needle. The needle includes an oval shape opening for increased mechanical resistance of the needle while allowing a greater passage curvature of the blood cells at the greatest zone of passage. In other embodiments, a plurality of staggered openings is used to reduce the flow through any single opening where damage occurs, the openings can be made in a curved area, or a plurality of smaller openings or a grid made of openings can be used to further reduce the interference of the needle tip and the needle openings on blood.

Description

[0001] Cross References to Related Applications [0002] This patent application claims priority to U.S. Provisional Patent Application No. 61 / 079,238, filed July 9, 2008, entitled "Needle for Subcutaneous Port," which earlier application incorporated herein by reference; and priority of U.S. Provisional Patent Application No. 61 / 091,044, filed August 22, 2008, also titled "Needle for Hypodermic Injection Port," which is also incorporated herein by reference Reference. technical field [0003] The present disclosure relates to a needle for a hypodermic port having a membrane for reducing damage to blood cells due to rapid blood circulation at the needle tip, and more particularly to a needle for a hypodermic port having an opening and a rim which Able to protect blood cells by reducing local velocity, reducing friction, and controlling flow direction. Background technique [0004] In medical interventions, tubes or catheters are widely used in combination with different me...

Claims

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Application Information

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IPC IPC(8): A61M5/00
CPCA61M5/3291A61M5/329A61M2206/11A61M2001/3661A61M39/0208A61M5/3286A61M2005/1581A61M1/3661
Inventor D·A·洛伊特曼M·G·洛伊特曼
Owner GRANTADLER
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