Device for Delivering Viscous Material

• US 20140046335A1
• Filed: 10/18/2013
• Published: 02/13/2014
• Est. Priority Date: 09/26/2003
• Status: Active Grant

• Current Assignee: John Voellmicke, Michael Gorhan, Michael Mazzuca
• Original Assignee: John Voellmicke, Michael Gorhan, Michael Mazzuca
• Inventors: Mazzuca, Michael, Voellmicke, John, Gorhan, Michael
• Granted Patent: US 10,111,697 B2
• Time in Patent Office: Days
• US Class Current: 606/94
• CPC Class Codes: A61B 17/8822 characterised by means facilitating expulsion of fluid from the introducer, e.g. a screw pump plunger, hydraulic force transmissions, application of vibrations or a vacuum
• CPC Class Codes: A61B 17/8825 characterised by syringe details A61B17/8822, A61B17/8827 take precedence
• CPC Class Codes: A61B 17/8827 with filtering, degassing, venting or pressure relief means

Abstract

Methods and devices are described for delivering a viscous material to a surgical site in a patient while keeping the clinician outside the fluoroscopy field.

Claims

1. A device for delivering a viscous material into a site in a patient, comprising:

an actuator including an actuator vessel and an electric motor;

a delivery tube, having a first end, a second end and an inner bore, wherein the first end is coupled to the actuator; and

a container having a connection port for connecting to the second end of the tube and an exit port, and containing a viscous material.

2. The device of claim 1, wherein the actuator comprises a linear actuator.

3. The device of claim 2, wherein the viscous material is a PMMA-based bone cement.

4. The device of claim 1, wherein the actuator comprises a hydraulic pump.

5. The device of claim 1, wherein the actuator has a visualization window for viewing the contents of the vessel.

6. The device of claim 5, wherein the visualization window has means for measuring the amount of viscous material being delivered.

7. The device of claim 6, wherein the means for measuring are graduation lines marked on the outside of the actuator.

8. The device of claim 1, wherein the delivery tube is flexible and noncompliant.

9. The device of claim 1, wherein the delivery tube is made of PEEK.

10. The device of claim 1, wherein the delivery tube has an inner diameter between 1 and 10 mm.

11. The device of claim 1, wherein the container is adapted to hold between 2 and 20 cc of viscous material.

12. The device of claim 1, wherein the container further comprises a visualization window for viewing contents of the container.

13. The device of claim 12, wherein the visualization window has means for measuring the amount of viscous material being delivered.

14. The device of claim 13, wherein the means for measuring are graduation lines marked on the outside of the container.

15. The device of claim 1, wherein the container is made from a noncompliant material.

16. The device of claim 1, further comprising a substantially incompressible fluid located within the vessel.

17. The device of claim 16, wherein the amount of fluid contained in the vessel is greater than the amount of viscous material to be delivered.

18. The device of claim 1, further comprising a pressure monitor.

19. The device of claim 18, wherein the pressure monitor is a gauge connected to the delivery tube.

20. The device of claim 18, wherein the pressure monitor is a binary indicator to display when excessive pressure is reached.

21. The device of claim 1, further comprising a pressure relief valve.

22. The device of claim 21, wherein the pressure relief valve opens when an unsafe pressure is reached and diverts the fluid to a catch reservoir.

23. The device of claim 1, further comprising a cannula for delivery of the viscous material to the site in the patient.

24. The device of claim 23, wherein the cannula connects to the exit port of the container at an angle between 80 and 135 degrees.

25. The device of claim 23, further comprising a second cannula for delivery of the viscous material to a second site in the patient.

26. A device for delivering a viscous material into a site in a patient, comprising:

a) a delivery tube, having a first end, a second end and an inner bore,

b) an incompressible fluid contained within the inner bore of the delivery tube,

c) a container having a connection port for connecting to the second end of the delivery tube, an inner bore, an exit port,

d) a viscous material contained within the inner bore of the container,

e) a separator sized to move within the inner bore of the container for separating a viscous material from the incompressible fluid, and

f) an actuator including an actuator vessel and an electric motor, the actuator vessel connected to the first end of the delivery tube.

27. A device for delivering a viscous material into a site in a patient, comprising:

a) a delivery tube, having a first end, a second end and an inner bore, b) a first fluid contained within the inner bore of the delivery tube, and c) a container having a connection port for connecting to the second end of the delivery tube, an inner bore, an exit port, and d) a second fluid contained within the inner bore of the container, and e) an actuator including an actuator vessel and an electric motor, the actuator vessel connected to the first end of the delivery tube.