Anesthetic injection system

• US 8,425,463 B2
• Filed: 06/11/2012
• Issued: 04/23/2013
• Est. Priority Date: 12/21/2007
• Status: Expired due to Fees

• Current Assignee: Carticept Medical, Inc.
• Original Assignee: Carticept Medical, Inc.
• Inventors: Patrick, Timothy, Knostman, Richard, Axelrod, Michael, Ramey, Carribeth
• Primary Examiner(s): Mehta, Bhisma
• Assistant Examiner(s): WILSON, LARRY ROSS
• Application Number:
  US13/493,932
• Publication Number:
  US 20120253269A1
• Time in Patent Office: 316 Days
• Field of Search: 604 80- 83, 604/85, 604/131, 604/152, 604/154, 604/155, 604257-259, 604/500, 604/506, 604/507, 604/511, 604518-520
• US Class Current: 604/154
• CPC Class Codes: A61B 2017/3413 guided by ultrasound
• CPC Class Codes: A61B 2090/378 using ultrasound
• CPC Class Codes: A61B 5/4839 combined with drug delivery
• CPC Class Codes: A61B 8/00 Diagnosis using ultrasonic, sonic or infrasonic waves imaging of objects using sonar G01S15/00
• CPC Class Codes: A61B 8/0841 for locating instruments
• CPC Class Codes: A61M 19/00 Local anaesthesia syringes therefor A61M5/00; Hypothermia A61M5/42 takes precedence; cooling blood in a bypass of the arterial system A61M1/36
• CPC Class Codes: A61M 2005/3128 Incorporating one-way valves, e.g. pressure-relief or non-return valves
• CPC Class Codes: A61M 2039/242 designed to open when a predetermined pressure or flow rate has been reached, e.g. check valve actuated by fluid
• CPC Class Codes: A61M 2039/246 being fixed along all or a part of its periphery
• CPC Class Codes: A61M 2205/505 Touch-screens; Virtual keyboard or keypads; Virtual buttons; Soft keys; Mouse touches
• CPC Class Codes: A61M 5/14216 Reciprocating piston type
• CPC Class Codes: A61M 5/1452 pressurised by means of pistons
• CPC Class Codes: A61M 5/162 Needle sets, i.e. connections by puncture between reservoir and tube ; Connections between reservoir and tube in jet-action syringes A61M5/30; connectors for tubes having sealed ends and a needle for piercing them A61M39/14
• CPC Class Codes: A61M 5/16827 controlling delivery of multiple fluids, e.g. sequencing, mixing or via separate flow-paths infusion of multiple fluids without using a controller A61M5/1407
• CPC Class Codes: A61M 5/20 Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically A61M5/142 , A61M5/46 take precedence; hypodermic projectiles F42B12/54
• CPC Class Codes: G16H 20/17 delivered via infusion or injection

Abstract

Systems for injecting fluids and/or other materials into a targeted anatomical location, in particular, an intra-articular space, include a handpiece assembly having a proximal end and a distal end, a needle extending from the distal end of the handpiece assembly, a fluid delivery module comprising a cassette and a fluid transfer device. A conduit is generally configured to place the fluid delivery module in fluid communication with the handpiece assembly. Medications, formulations and/or other fluids or materials contained within vials that are secured to the fluid delivery module can be selectively delivered into an anatomy through a needle located at the distal end of the handpiece assembly. In some embodiments, ultrasound or other imaging technologies can be used to locate a joint or other targeted anatomical location.

Claims

1. An imaging-guided anesthetic injection system comprising:

a fluid delivery module comprising at least one loading area configured to receive a container containing an anesthetic, the at least one loading area being configured to securely receive various sizes and shapes of the container;

at least one reservoir located within an interior of the fluid delivery module, wherein the at least one reservoir is configured to be placed in fluid communication with the container when said container is properly secured to the at least one loading area;

wherein at least one slidably movable member is configured to be moved within or out of the at least one reservoir to selectively transfer a volume of the anesthetic from or to the at least one reservoir, wherein movement of the at least one slidably movable member relative to the at least one reservoir changes an effective volume of the at least one reservoir;

wherein the at least one slidably movable member is configured to be moved using at least one motor;

at least one conduit configured to be placed in fluid communication with the at least one reservoir, said at least one fluid conduit comprising a distal end;

wherein the distal end of the at least one conduit is configured to removably receive a needle, said needle being configured to be placed within an anatomy of a subject for the subsequent delivery of the anesthetic through the at least one conduit and the needle;

at least one controller configured to regulate at least one aspect of the delivery of the anesthetic from the fluid delivery module to a target anatomical location of the subject; and

a display configured to provide status information related to the delivery of the anesthetic to the target anatomical location;

wherein the system is configured to be placed in data communication with an imaging device to assist in accurately advancing the needle into the anatomy of the subject.

2. The injection system of claim 1, wherein the display is additionally configured to provide at least one real-time image obtained by the imaging device.

3. The injection system of claim 1, wherein the imaging device comprises an ultrasound device.

4. The injection system of claim 1, wherein the at least one controller comprises a foot pedal assembly.

5. The injection system of claim 1, wherein the at least one controller comprises one or more buttons.

6. The injection system of claim 1, wherein the system is configured to aspirate a volume of native bodily fluid from the anatomy of the subject at least partially through the needle.

7. The injection system of claim 6, wherein the system is configured to aspirate a volume of native bodily fluid from the anatomy of the subject by applying a negative pressure to the at least one conduit.

8. The injection system of claim 7, wherein the negative pressure within the at least one conduit is configured to be generated manually by the clinician.

9. The injection system of claim 7, wherein the negative pressure within the at least one conduit is configured to be is generated automatically using the fluid delivery module.

10. The injection system of claim 1, wherein the at least one loading area comprises a first loading area and at least a second loading area, wherein the first loading area is configured to receive the container containing the anesthetic, and wherein the second loading area is configured to receive a second container comprising a second fluid.

11. The injection system of claim 10, wherein the second fluid comprises at least one of an anesthetic and a non-anesthetic.

12. The injection system of claim 1, wherein the system is configured to detect a back-pressure associated with a delivery of the anesthetic through the at least one conduit.

13. The injection system of claim 1, wherein, during delivery of the anesthetic to the at least one conduit, the display is additionally configured to provide data relating to a back-pressure against which the anesthetic is being delivered.

14. The injection system of claim 1, wherein the target anatomical location of the subject is an area proximate a nerve.

15. An imaging-guided anesthetic injection system comprising:

a fluid delivery module comprising at least one loading area configured to receive a container comprising an anesthetic, the at least one loading area being configured to securely receive various sizes and shapes of the container;

at least one fluid reservoir within an interior of the fluid delivery module, said at least one fluid reservoir comprising at least one plunger, wherein movement of the at least one plunger within or out of the at least one reservoir changes an effective volume of the at least one reservoir;

at least one conduit configured to be placed in fluid communication with the at least one fluid reservoir, said at least one conduit comprising a distal end, said distal end configured to receive a needle;

wherein the fluid delivery module is configured to selectively transfer at least a portion of the anesthetic from the container through the at least one conduit via the at least one fluid reservoir;

wherein the fluid delivery module comprises at least one motor, said at least one motor being configured to selectively move the at least one plunger to facilitate the transfer of the fluid from the container through the at least one conduit and to the needle;

at least one controller configured to regulate at least one aspect of the delivery of the anesthetic from the fluid delivery module to a target anatomical location of the subject according to a delivery scheme; and

a display configured to provide status information related to the delivery of the anesthetic to the target anatomical location;

wherein the system is configured to be placed in data communication with an imaging device to assist in accurately advancing the needle into the anatomy of the subject;

wherein the display is additionally configured to provide at least one real-time image of the anatomy of the subject obtained by the imaging device; and

wherein the system is configured to detect a back-pressure associated with a delivery of the anesthetic through the at least one fluid conduit.

16. The injection system of claim 15, wherein the needle is secured to a distal end of a handpiece, said at least one conduit being at least partially routed through an interior of said handpiece.

17. The injection system of claim 15, wherein the imaging device comprises an ultrasound device.

18. The injection system of claim 15, wherein the at least one controller comprises a foot pedal assembly.

19. The injection system of claim 15, wherein the system is configured for aspiration of a volume of native bodily fluid from the anatomy of the subject proximally at least partially through the needle.

20. The injection system of claim 15, wherein the display is additionally configured to provide data or information relating to one or more of the following:

the back-pressure associated with a delivery of the anesthetic through the at least one fluid conduit, a volume of the anesthetic delivered to the subject and a volume of the anesthetic remaining to be delivered to the subject.