Patents by Inventor Dong Jin Chang

Dong Jin Chang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • ANTERIOR CAPSULOTOMY GUIDE DEVICE FOR CATARACT SURGERY
    Publication number: 20150305934
    Abstract: The present invention relates to an anterior capsulotomy guide device for cataract surgery. The present invention relates to an anterior capsulotomy guide device for cataract surgery which is temporarily inserted for anterior capsulotomy during cataract surgery, wherein the anterior capsulotomy guide device comprises a ring-shaped body, and a cut portion is formed by cutting a part of the body. According to the present invention, it is possible to carry out anterior capsulotomy with precise size and shape during cataract surgery, thereby maximizing the effect of cataract surgery.
    Type: Application
    Filed: October 18, 2013
    Publication date: October 29, 2015
    Inventors: Choun-Ki Joo, Dong Jin Chang, Chong Houn Lee, Dong Kun Lee
  • DEVICE FOR OCULAR SURGERY TRAINING
    Publication number: 20150279239
    Abstract: The present invention relates to an ocular surgery training device, which includes an eye model having a hole at one side, and a catheter inserted into the hole, wherein a pressure sensor for measuring a pressure applied to the hole by the catheter is provided at one end of the catheter. The present invention may provide the ocular surgery training device which may enhance the skill of users in performing ocular surgery, thereby preventing complications.
    Type: Application
    Filed: March 25, 2015
    Publication date: October 1, 2015
    Inventors: Dong Jin Chang, Choun-Ki Joo