Neural injection system and related methods

• US 8,377,005 B2
• Filed: 11/30/2010
• Issued: 02/19/2013
• Est. Priority Date: 09/11/2006
• Status: Active Grant

• Current Assignee: Custom Medical Applications
• Original Assignee: Custom Medical Applications
• Inventors: Racz, N. Sandor
• Primary Examiner(s): SHUMATE, VICTORIA PEARL
• Application Number:
  US12/956,551
• Publication Number:
  US 20120136308A1
• Time in Patent Office: 812 Days
• Field of Search: 604/158, 604/162
• US Class Current: 604/164.01
• CPC Class Codes: A61B 17/3415 for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters A61B17/3417 takes precedence; body piercing catheter guide needles A61M25/06
• CPC Class Codes: A61B 17/3468 for implanting or removing devices, e.g. prostheses, implants, seeds, wires devices for implanting seeds A61M37/0069
• CPC Class Codes: A61B 18/1492 having a flexible, catheter-like structure, e.g. for heart ablation A61B18/1477 takes precedence
• CPC Class Codes: A61B 2018/00434 Neural system
• CPC Class Codes: A61B 2018/00577 Ablation
• CPC Class Codes: A61B 2018/1425 Needle
• CPC Class Codes: A61M 2025/0079 Separate user-activated means, e.g. guidewires, guide tubes, balloon catheters or sheaths, for sealing off an orifice, e.g. a lumen or side holes, of a catheter
• CPC Class Codes: A61M 25/007 Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked
• CPC Class Codes: A61M 25/0084 being one or more injection needles
• CPC Class Codes: A61M 25/0102 Insertion or introduction using an inner stiffening member, e.g. stylet or push-rod
• CPC Class Codes: A61M 25/0662 Guide tubes
• CPC Class Codes: A61N 1/0551 Spinal or peripheral nerve electrodes

Abstract

A novel neural injection system and related methods are herein disclosed. Various embodiments of an embodiment of a neural injection system of the present invention provide for at least one benefit of enhanced injection characteristics, increased operational efficiency, reduced cost per unit, reduced incidence of injury through intraneural/intravascular injection, reduced incidence of injury through pricking/piercing, and/or the like.

Claims

1. A neural injection system comprising:

an at least partially hollow cannula being defined by a first inside diameter, a first outside diameter, and a first length, and a side port located coaxially along a lateral axis of the cannula for fluid communication from the inside said at least partially hollow cannula to outside said at least partially hollow cannula, wherein said cannula has a rounded open blunt distal end;

a stylet, wherein the stylet is capable of being releasably locked in a first position within said cannula, wherein the distal end of the stylet is flush with the distal end of the cannula; and

an introducer being defined by a second inside diameter, a second outside diameter, and a second length, wherein the introducer is used for access across a tissue of a patient that cannot be punctured by the rounded open blunt distal end during a normal insertion procedure.

2. The neural injection system of claim 1, wherein the introducer is maintained within a housing.

3. The neural injection system of claim 1, wherein the introducer is retractable.

4. The neural injection system of claim 1, wherein the introducer is extended by a method selected from the group consisting of physically, pneumatically, mechanically, hydraulically, and electronically.