Resorbable hollow devices for implantation and delivery of therapeutic agents
US9662152B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2009 |
| Grant date | May 30, 2017 |
| Priority date | — |
| Expiry date | Feb 21, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/105
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of manufacturing a resorbable balloon designed to contain bone cement for vertebroplasty or kyphoplasty applications is described. The resorbable balloon can be inserted into a vertebral body following vertebral cavitation and filled with bone cement. The balloon remains in place in the vertebral body and resorbs over time. Methods and apparatus are also described for delivering therapeutic agents using collapsible, resorbable balloons. The balloons may be nested and filled with various therapeutic agents that are released over time at rates dependent upon structures and degradation rates of the balloons. Furthermore, the function of the hollow devices can encompass both encapsulation and therapeutic substance delivery roles simultaneously.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.