Device for delivering viscous material

• US 10,111,697 B2
• Filed: 10/18/2013
• Issued: 10/30/2018
• Est. Priority Date: 09/26/2003
• Status: Active Grant

• Current Assignee: Depuy Synthes Products Incorporated (Johnson & Johnson)
• Original Assignee: Depuy Synthes Products Incorporated (Johnson & Johnson)
• Inventors: Mazzuca, Michael, Voellmicke, John, Gorhan, Michael
• Primary Examiner(s): Ramana, Anu
• Application Number:
  US14/057,335
• Publication Number:
  US 20140046335A1
• Time in Patent Office: 1,838 Days
• Field of Search: 606 94, 604257
• 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 system 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;

a plunger housed within the delivery tube, and

a container having a connection port for connecting to the second end of the delivery tube and an exit port, and containing a viscous material, wherein the viscous material is a PMMA-based bone cement, and

wherein the actuator is adapted to advance the plunger.

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

3. The system of claim 1, wherein the actuator comprises a hydraulic pump.

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

5. The system of claim 4, wherein the visualization window has means for measuring the amount of viscous material being delivered.

6. The system of claim 5, wherein the means for measuring are graduation lines marked on the outside of the actuator.

7. The system of claim 1, wherein the delivery tube is made of PEEK.

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

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

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

11. The system of claim 10, wherein the visualization window has means for measuring the amount of viscous material being delivered.

12. The system of claim 11, wherein the means for measuring are graduation lines marked on the outside of the container.

13. The system of claim 1, wherein the container is made from a noncompliant material.

14. The system of claim 1, further comprising a pressure monitor.

15. The system of claim 14, wherein the pressure monitor is a gauge connected to the delivery tube.

16. The system of claim 1, further comprising a pressure relief valve.

17. The system of claim 16, wherein the pressure relief valve opens when an unsafe pressure is reached and diverts the viscous material to a catch reservoir.

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

19. The system of claim 18, wherein the cannula connects to the exit port of the container at an angle between 80 and 135 degrees.

20. The system of claim 18, further comprising a second cannula for delivery of the viscous material to a second site in the patient.