FLUID INJECTION SYSTEM COMPRISING A MOTION TRANSFER CABLE

• US 20120259237A1
• Filed: 04/03/2012
• Published: 10/11/2012
• Est. Priority Date: 04/05/2011
• Status: Abandoned Application

• Current Assignee: Carticept Medical, Inc.
• Original Assignee: Carticept Medical, Inc.
• Inventors: Axelrod, Michael
• Application Number:
  US13/438,691
• Publication Number:
  US 20120259237A1
• Time in Patent Office: Days
• US Class Current: 600/506
• CPC Class Codes: A61B 8/0841 for locating instruments
• CPC Class Codes: A61B 8/085 for locating body or organic structures, e.g. tumours, calculi, blood vessels, nodules
• CPC Class Codes: A61M 2205/60 with identification means
• CPC Class Codes: A61M 2205/6072 Bar codes
• CPC Class Codes: A61M 5/1452 pressurised by means of pistons
• CPC Class Codes: A61M 5/1458 Means for capture of the plunger flange

Abstract

An injection system for transferring a volume of fluid from a syringe into a patient comprises a syringe assembly having a syringe adapter configured to securely receive a pre-filled syringe and a plunger assembly configured to be selectively moved relative to the syringe adapter. The injection system further comprises a fluid delivery module comprising at least one motor to move an actuator in at least one direction. In some embodiments, the injection system additionally comprises a motion transfer cable. In one embodiment, one end of the motion transfer cable is mechanically coupled to the actuator of the fluid delivery module, and the other end is mechanically coupled to the plunger assembly of the syringe assembly. In some embodiments, movement of the actuator by the motor is transferred through the motion transfer cable to the plunger assembly, resulting in the plunger assembly moving a desired distance relative to the pre-filled syringe.

Claims

1. An injection system for transferring a volume of fluid from a pre-filled syringe into a patient, comprising:

a syringe assembly comprising a syringe adapter configured to securely receive a syringe and a plunger assembly configured to be selectively moved relative to the syringe adapter;

at least one motor assembly configured to impart a force on and move an actuator in at least one direction;

a motion transfer cable comprising a first end and a second end and an inner core extending between said first end and said second end;

wherein the first end of the motion transfer cable is mechanically coupled to the actuator;

wherein the second end of the motion transfer cable is mechanically coupled to the plunger assembly of the syringe assembly;

wherein movement of the actuator by the motor is transferred through the motion transfer cable to the plunger assembly, resulting in the plunger assembly moving a desired distance relative to the syringe secured to the syringe assembly;

wherein fluid exiting the syringe as a result of movement by the actuator, the motion transfer cable and the plunger assembly passes through a distal outlet of the syringe; and

wherein the syringe assembly is configured to be grasped and manipulated by a clinician during an injection procedure.

2. The injection system of claim 1, wherein the at least one motor assembly is operatively coupled to a fluid delivery module.

3. The injection system of claim 1, wherein the injection system is configured to receive instructions for moving the actuator and transferring a volume of fluid out of the syringe.

4. The injection system of claim 1, wherein the actuator is mechanically coupled to a cassette that is removably coupled to the at least one motor assembly.

5. The injection system of claim 1, wherein the motion transfer cable is generally flexible to permit the syringe assembly to be manipulated by a clinician during an injection procedure.

6. The injection system of claim 1, wherein the at least one motor assembly is positioned on a surface and is configured to not move relative to said surface while the syringe assembly is used during an injection procedure.

7. The injection system of claim 1, wherein the at least one motor assembly is positioned on at least one of a cart, a table, a desk, other platform, a wall, a ground surface and a clinician'"'"'s body while the syringe assembly is manipulated and moved during an injection procedure.

8. The injection system of claim 1, wherein the motion transfer cable comprises at least one protective outer sheath, wherein the inner core of the motion transfer cable is slidably movable relative to said at least one protective outer sheath.

9. The injection system of claim 1, wherein the syringe adapter of the syringe assembly is configured to receive syringes of varying sizes, shapes and types.

10. The injection system of claim 1, wherein the syringe adapter is configured to removably couple to a flange portion of the syringe.

11. The injection system of claim 1, wherein the injection system is in data communication with an imaging device configured to help locate a targeted anatomical location within the patient.

12. The injection system of claim 11, wherein the imaging device comprises an ultrasound device.

13. The injection system of claim 1, wherein the at least one motor assembly comprises a stepper motor.

14. The injection system of claim 1, further comprising a handpiece assembly, an interior portion of said handpiece being configured to receive and secure the syringe assembly.

15. A method of injecting a fluid stored within a pre-filled syringe into a patient, comprising:

securing a pre-filled syringe to a syringe adapter of a syringe assembly of an injection system;

wherein the injection system further comprises a motor assembly and a motion transfer cable, the motion transfer cable comprising an inner core, wherein the motion transfer cable mechanically couples the syringe assembly to the motor assembly;

coupling a first terminal of the motion transfer cable to an actuator of the motor assembly, wherein at least one motor of the motor assembly is configured to selectively move the actuator;

coupling the second terminal of the motion transfer cable to a plunger assembly of the syringe assembly, said plunger assembly being configured to selectively move within an interior of the pre-filled syringe in order to discharge fluid from an outlet of the pre-filled syringe;

moving the actuator using the motor assembly in response to an injection instruction, wherein moving the actuator causes a corresponding linear motion in the first and second terminals and the inner core of the motion transfer cable extending between said first and second terminals;

wherein movement of the second terminal toward the pre-filled syringe urges the plunger assembly into the interior of the pre-filled syringe and transfers a volume of fluid through the outlet of the pre-filled syringe;

wherein fluid exiting the outlet of the pre-filled syringe passes through a needle assembly removably secured to a distal end of the pre-filled syringe and into a target anatomical location of a patient; and

wherein the syringe assembly is configured to be grasped and manipulated by a clinician during an injection procedure.

16. The method of claim 15, wherein the injection system is configured to receive instructions for moving the actuator and transferring a volume of fluid out of the pre-filled syringe.

17. The method of claim 15, wherein the motor assembly is positioned within or coupled to a fluid delivery module.

18. The method of claim 15, wherein the motion transfer cable is generally flexible to permit the syringe assembly to be manipulated relative to the motor assembly by a clinician during an injection procedure.

19. The method of claim 15, wherein the motion transfer cable comprises at least one protective outer sheath, the inner core of the motion transfer cable being slidably movable relative to the at least one protective outer sheath.

20. The method of claim 15, wherein coupling the first terminal of the motion transfer cable to the actuator comprises securing the first terminal to a quick-connect coupling of the actuator.