Balloon, medical device and medical procedure for discoplasty

US11771562B2 · kind B2 · utility

Assignee

• THE SECOND AFFILIATED HOSPITAL AND YUYING CHILDREN'S HOSPITAL OF WENZHOU MEDICAL UNIVERSITY · CN

Inventors

• Aimin Wu · Vaughan, CA
• Xiangyang Wang · Xi'an, CN
• Yan Lin · Zhejiang, CN
• Wenfei Ni · Zhejiang, CN
• Zhongke Lin · Zhejiang, CN
• Qishan Huang · Wenzhou, CN
• Fangmin Mao · Wenzhou, CN
• Sheng Wang · Taipei, TW

Key dates

• Filing date: Jan 28, 2021
• Grant date: Oct 3, 2023
• Expiry date: Dec 30, 2041

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2002/4635
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A balloon, a medical device, and a medical procedure for discoplasty are disclosed. The balloon has a compressed, collapsed or folded balloon body containing a first chamber for, in use, receiving injected bone cement. With the bone cement filled and cured therein, the balloon acts as a support in tissue of an intervertebral disc while preventing the bone cement from leakage and dispersion. The deployed balloon body defines a second chamber running therethrough. The second chamber is configured to receive a material or cells that activate osteogenesis and/or osteo-induction, so that the material or cells injected into the second chamber through a second sprue form osteocytes or induce human spontaneous local cellular differentiation to in turn form osteocytes in the cavity of the intervertebral disc and connect vertebrae above and below the intervertebral disc, thereby securely anchoring the balloon within the intervertebral space.