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Spinal Needle Patent
 

Spinal needle

The present invention is directed toward an improved spinal needle. A needle hub is disposed about a proximate end of a hollow needle. The needle hub side port indicators provide visual and tactual verification by a user of the orientation of the side port on the needle. The needle hub also includes a window with a magnified view. The invention provides a stylet cap disposed about a proximate end of a stylet that freely slides inside the hollow needle and needle hub. The stylet cap forms a pressure fit with the needle hub, and can be engaged in the pressure fit from any axial orientation.

Multiple hole spinal needle

A double-hole pencil-point (DHPP) spinal needle is composed of a closed end blunt ogival or pencil point tip and two circular coaxial holes in close proximity to the tip. Anesthetic solution may be injected through the coaxial holes in a direction parallel to the long axis of the spinal fluid column which allows an even anesthetic distribution with a low dosage required. The spinal needle of the present invention allows anesthetic solution to be injected even when one of the holes is obstructed by a tissue fragment and rapid reflux of cerebral spinal fluid at twice the rate of single hole pencil point spinal needles.

Spinal needle with optical fiber means for radiating a laser beam

A spinal needle for performing medical treatment is inserted into the vertebral pulp, a laser probe is inserted into the spinal needle, and then laser rays are radiated onto the vertebral pulp. An air-escape tube is unitarily provided parallel to the spinal needle or a flow-passage connected with the interior of the spinal needle is provided in the vicinity of the handle portion of the spinal needle.

Method for making a multi-lumen epidural-spinal needle and tip and stock configuration for the same

The present invention discloses a method for producing a multi-lumen needle suitable for administrating spinal anesthesia. The method will provide a needle that will allow the simultaneous administration of spinal and epidural anesthetic from a single site. A preferred needle made by this method can optionally be made with a stock configuration which has means for holding a catheter during the insertion of a spinal needle and is configured so as to provide gripping sites to assist in positioning the needle. The preferred needle of the present invention has a lumen which can serve as a spinal introducer. The introducer lumen sheaths the spinal needle until the spinal needle is in the epidural space. This assures that the spinal needle will not be bent or fractured in use by impingement with bone or hard tissue.


Multiple hole spinal needle
Spinal needle system

1 6558353 Spinal needle
2 5848996 Multiple hole spinal needle
3 4959063 Spinal needle with optical fiber means for radiating a laser beam
4 4958901 Method for making a multi-lumen epidural-spinal needle and tip and stock configuration for the same
5 4808157 Multi-lumen epidural-spinal needle
6 4233974 Spinal needle assembly
7 20030130621 Spinal needle system
8 20020099335 Spinal needle

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