REMOTELY-ACTIVATED VERTEBROPLASTY INJECTION DEVICE

• US 20090270872A1
• Filed: 02/19/2009
• Published: 10/29/2009
• Est. Priority Date: 03/31/2003
• Status: Active Grant

• Current Assignee: Depuy Synthes Products Incorporated (Johnson & Johnson)
• Original Assignee: Depuy Spine Incorporated (Johnson & Johnson)
• Inventors: DiMauro, Thomas M., Pellegrino, Richard, Reynolds, Martin A., Crombie, John
• Granted Patent: US 9,839,460 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: A61F 2/4601 for introducing bone substitute, for implanting bone graft implants or for compacting them in the bone cavity
• CPC Class Codes: A61F 2/48 Operating or control means, e.g. from outside the body, control of sphincters
• CPC Class Codes: A61F 2002/3008 radio-opaque, e.g. radio-opaque markers
• CPC Class Codes: A61F 2002/30523 by means of meshing gear teeth
• CPC Class Codes: A61F 2220/0025 Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
• CPC Class Codes: A61F 2250/0098 radio-opaque, e.g. radio-opaque markers

Abstract

A remotely-activated injection device for use in vertebroplasty is provided to inject a flourescent probe material into a patient. The injection device includes a pump defining an injection chamber having an exit opening; an actuator; and a cable having a first end coupled to the actuator, and a second end remotely engaging the pump. The actuator remotely controls the pump by responsive movement of the cable to thereby cause injection of a flourescent probe material from the injection chamber of the pump through the exit opening to the patient.

Claims

1-17. -17. (canceled)

18. A handheld pumping system comprising:

a hydraulic driver;

a semi-rigid housing;

a container of bone cement connected to said housing and receiving pressurized fluid to selectively force said bone cement from said container;

a cement pressure relief device on the hand-held pump for minimizing contact between pressurized cement and other tissue.

19. The system of claim 18, further comprising a handheld base supporting an actuator for the hydraulic driver.

20. The system of claim 19, further comprising a lever portion pivotally coupled to the handheld base for selectively actuating the hydraulic driver.

21. The system of claim 20, wherein the semi-rigid housing connects to the handheld base and the hydraulic driver is actuated through the semi-rigid housing.

22. A handheld pumping system comprising:

a hydraulic hydraulic fluid for pressurization;

a chamber containing the hydraulic fluid;

a fluid pressurizer for applying pressure to the hydraulic fluid;

a semi-rigid housing;

a container of bone cement connected to said housing and receiving pressurized fluid to selectively force said bone cement from said container;

a cement pressure relief device on the hand-held pump for minimizing contact between pressurized cement and other tissue.

23. The system of claim 22, further comprising a handheld base supporting an actuator for the hydraulic driver.

24. The system of claim 23, further comprising a lever portion pivotally coupled to the handheld base for selectively actuating the hydraulic driver.

25. The system of claim 24, wherein the semi-rigid housing connects to the handheld base and the hydraulic driver is actuated through the semi-rigid housing.