Spinal Balloon Systems Comprising Microbubbles

a technology of spinal balloon and microbubble, which is applied in the direction of prosthesis, catheter, application, etc., can solve the problems of cancer and even excessive exposure to x-ray radiation

Inactive Publication Date: 2017-06-29
DEPUY SYNTHES PROD INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

Enables safe and effective vertebral body augmentation procedures by providing clear ultrasound visualization of the balloon and cement placement, reducing radiation exposure for clinicians and improving procedural safety.

Problems solved by technology

It is well known that excessive exposure to x-ray radiation is dangerous and even cancer-causing.

Method used

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  • Spinal Balloon Systems Comprising Microbubbles
  • Spinal Balloon Systems Comprising Microbubbles

Examples

Experimental program
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Embodiment Construction

[0029]In one preferred embodiment, the powder component of the cement of the present invention comprises:[0030]a) about 60-90 wt % PMMA having a molecular weight of less than 500,000 (preferably between 150,000 and 300,000; more preferably between 270,000 and 300,000);[0031]b) about 1 wt % PMMA having a molecular weight of between about 500,000 and 600,000, and containing the polymerization inhibitor;[0032]c) about 1-4 wt % PMMA (preferably 2-3 wt %) having a molecular weight of between about 600,000 to about 5,000,000 (preferably between about 1,000,000 and about 4,000,000; more preferably between 3,000,000 and 4,000,000);[0033]d) about 5-35 wt % radiopaque agent (preferably, barium sulfate);[0034]e) about 0.1-1 wt % initiator (preferably, benzoyl peroxide);

[0035]In another embodiment, the powder component of the cement of the present invention comprises:[0036]a) about 15-30 wt % PMMA having a particle size of less than about 5 um (preferably having a median of about 3 um);[0037]b)...

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Abstract

Adding gas-filled microbubbles to both the saline solution of either a kyphoplasty balloon or a vertebroplasty cement allows the clinician to assess via ultrasound both the location and expansion of the balloon and the location of the cement during vertebral body augmentation procedures without the use of fluoroscopy.

Description

CONTINUING DATA[0001]This application claims priority from copending U.S. Ser. No. 14 / 316,135, entitled “Vertebral Body Augmentation Systems Comprising Microbubbles”, filed Jun. 26, 2014, DiMauro, (Docket No. DSP5118USNP), the specification of which is incorporated by reference in its entirety.BACKGROUND OF THE INVENTION[0002]In vertebroplasty, the clinician or surgeon seeks to treat a compression fracture of a vertebra by injecting a curable bone cement such as polymethylmethacrylate (PMMA) into the fracture. In a related procedure called kyphoplasty, the clinician or surgeon first inflates a balloon in the vertebra to create cavity, and then injects the curable bone cement into the cavity. Each procedure is considered to be a form of vertebral body augmentation (VBA).[0003]In current vertebral body augmentation techniques, there are two instances in which fluoroscopy is used: balloon placement and cement injection.[0004]When using a balloon to create a cavity in the vertebral body...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): A61F2/46A61B90/00A61L24/00A61M25/10A61L29/14A61L24/06
CPCA61F2/46A61L29/14A61L24/06A61L24/001A61M25/1002A61B90/39A61F2/4601A61L2400/06A61M2025/1061A61M2210/02A61B17/8816A61B2090/3929A61B17/8855A61L2430/38C08L33/12A61L2430/02A61M25/1006
InventorDIMAURO, THOMAS M.
OwnerDEPUY SYNTHES PROD INC