Safety neural injection system and related methods

• US 9,131,960 B2
• Filed: 06/13/2008
• Issued: 09/15/2015
• Est. Priority Date: 06/13/2007
• Status: Active Grant

• Current Assignee: Custom Medical Applications
• Original Assignee: Custom Medical Applications
• Inventors: Racz, Nicholas Sandor
• Primary Examiner(s): FLICK, JASON E
• Application Number:
  US12/664,626
• Publication Number:
  US 20100249750A1
• Time in Patent Office: 2,650 Days
• Field of Search: 604/103.05, 604/164.01, 604/170.03, 604/20, 606/116
• US Class Current: 1/1
• CPC Class Codes: A61B 17/34 Trocars; Puncturing needles pointed biopsy instruments A61B10/0233; devices for piercing the ear-lobes A44C7/001; seals or hemostasis valves A61M39/06
• CPC Class Codes: A61B 17/3478 Endoscopic needles, e.g. for infusion biopsy needles A61B10/0233; catheters with injection needles A61M25/0067
• CPC Class Codes: A61B 18/1477 Needle-like probes
• CPC Class Codes: A61B 2018/1425 Needle

Abstract

A safety neural injection system includes at least a partially hollow cannula having an inside diameter, an outside diameter, a first length, a side port located coaxially along the hollow cannula for fluid communication between the inside and the outside of the hollow cannula, and an open distal end. The safety neural injection system also includes a flexible stylet with a shaped tip. The flexible stylet is capable of being releasably locked in a position within the hollow cannula and extends at least the first length of the hollow cannula. The hollow cannula proximate to the distal end includes a rigid bend so as to facilitate placement of the distal end at the treatment site.

Claims

1. A safety neural injection system comprising:

an at least partially hollow cannula being defined by a first inside diameter, a first outside diameter, a first length, and an open distal end in fluid communication with the inside and outside of the hollow cannula;

a side port located coaxially along the hollow cannula in fluid communication between the inside and the outside of the hollow cannula; and

a flexible stylet with a shaped tip, wherein the flexible stylet is releasably locked in a first position within the hollow cannula and extends at least the first length of the hollow cannula;

wherein the hollow cannula proximate to the distal end includes a rigid bend so as to facilitate placement of the distal end at a target site.

2. The system of claim 1, wherein the first position is characterized by the shaped tip of the flexible stylet being in a flush position relative to the open distal end of the hollow cannula.

3. The system of claim 1, wherein the shaped tip is configured so as to form a flat plane across the open distal end.

4. The system of claim 1, wherein the first position is characterized by the shaped tip of the flexible stylet protruding beyond the first length.

5. The system of claim 1, further comprising an agent selected from the group consisting of a therapeutic agent, a diagnostic agent and a prophylactic agent.

6. The system of claim 5, wherein said therapeutic agent is anesthesia.

7. The system of claim 1, further comprising a connector.

8. The system of claim 1, further comprising a wire.

9. The system of claim 1, further comprising an insulation.

10. The system of claim 1, further comprising a probe.

11. The system of claim 7, further comprising a wire, wherein the wire is connected about the connector with an instrument.

12. The system of claim 11, wherein said connector is a plug and use connector.

13. The system of claim 1, wherein the stylet further comprises a side port.

14. The system of claim 1, wherein the stylet is retractable.

15. A method for the administration of an agent with the safety neural injection system of claim 1 comprising:

locating a target site for administration;

adjusting the safety neural injection system;

such that said system is positioned relative to said site;

inserting at the target site at least a portion of said safety neural injection system;

maneuvering the safety neural injection system using the rigid bend proximate to the distal end to facilitate placement of said safety neural injection system at said target site; and

administering said agent.

16. The method of claim 15, wherein the agent is selected from the group consisting of a therapeutic agent, a diagnostic agent and a prophylactic agent.

17. The method of claim 15, wherein the therapeutic agent is anesthesia.

18. The method of claim 15, wherein the agent is used for stimulating a tissue about the site.

19. The method of claim 15, wherein said agent is injected through a biopsy needle.

20. The method of claim 18, wherein stimulating the tissue comprises ablating at least a portion of the tissue.

21. The method of claim 15, wherein the step of maneuvering the distal end is performed using a real-time imaging device.

22. The method of claim 15, wherein interaction between the safety neural injection system and a real-time imaging device permits a user to determine the exact location of the distal end at the target site.

23. The method of claim 15, wherein said target site is a site selected from a group consisting of the digestive system, the circulatory system, nervous system, muscular system, skeletal system, respiratory system, urinary system, reproductive system, excretory system, endocrine system, and immune system of the human body.

24. A kit comprising the safety neural injection system of claim 1 and an agent to be administered.

25. The kit of claim 24, wherein said agent is selected from a group consisting of a therapeutic agent, a diagnostic agent and a prophylactic agent.