Remotely-activated vertebroplasty injection device

• US 10,485,597 B2
• Filed: 11/17/2017
• Issued: 11/26/2019
• Est. Priority Date: 03/31/2003
• Status: Expired due to Term

• Current Assignee: Depuy Synthes Products Incorporated (Johnson & Johnson)
• Original Assignee: Depuy Synthes Products Incorporated (Johnson & Johnson)
• Inventors: DiMauro, Thomas M., Crombie, John, Pellegrino, Richard, Reynolds, Martin A.
• Primary Examiner(s): Sevilla, Christian A
• Application Number:
  US15/816,103
• Publication Number:
  US 20180071004A1
• Time in Patent Office: 739 Days
• 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 fluorescent 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 fluorescent probe material from the injection chamber of the pump through the exit opening to the patient.

Claims

1. A remotely-activated injection device, comprising:

an injection pump having an injection chamber, an exit opening, and a piston operable to apply a force against a bone cement so as to push the bone cement from the injection chamber through the exit opening;

a remote actuator operatively coupled to the injection pump, the actuator operable to drive the piston at a sufficient distance away from the injection pump so as to allow a clinician to operate the injection pump safely outside of a range of an imaging field directed in the vicinity of the injection pump;

a pressure relief device on the remotely-activated injection device for minimizing contact between a pressurized bone cement and other tissue.

2. The remotely-activated injection device of claim 1, further comprising a hollow bone needle extending from the exit opening.

3. The remotely-activated injection device of claim 1, further comprising a housing operatively connecting the remote actuator to the injection pump.

4. The remotely activated injection device of claim 3, further comprising a cable inside the housing, wherein the remote actuator actuates the cable so as to operate the piston.

5. The remotely activated injection device of claim 3, further comprising a hydraulic fluid inside the housing, wherein the remote actuator actuates the hydraulic fluid so as to operate the piston.

6. The remotely activated injection device of claim 1, wherein the remote actuator includes a handheld base and a lever pivotally couple to the handheld base.

7. The remotely-activated injection device of claim 1, further comprising an anchor configured to anchor the injection pump to a patient.

8. The remotely-activated injection device of claim 7, further comprising a bone cement loaded into the injection pump.

9. The remotely-activated injection device of claim 8, wherein the bone cement is a PMMA cement.

10. A method for remote injection of bone cement using the remotely-activated injection device of claim 1, comprising:

loading a bone cement in the injection chamber;

operatively connecting the exit opening to a patient'"'"'s bone; and

actuating the remote actuator so as to drive the bone cement into a patient'"'"'s bone.

11. The method of claim 10, further comprising directing an imaging apparatus toward a patient'"'"'s bone that will receive the bone cement and wherein actuating the remote actuator takes place outside of a field of the imaging apparatus.

12. The method of claim 11, where the patient'"'"'s bone that will receive the bone cement is a vertebral body.

13. The method of claim 12, wherein a modality of the imaging apparatus is fluoroscopy and actuating the remote actuator takes place outside of a harmful fluoro field.

14. The method of claim 10, further comprising anchoring the injection chamber to the patient.