SENSIMMER? Virtual Phaco Trainer for Cataract Surgery

描述(申请人提供)：ImmersiveTouch Inc.开发创新的增强虚拟现实软件SENSIMMER}，用于神经外科和眼科等领域的住院医生外科培训。该伙伴关系与芝加哥伊利诺伊大学合作，提议开发其白内障手术培训模块并将其商业化。在第一阶段和第二阶段之后，SENSIMMER虚拟人工晶状体训练器将包括五个模块，用于白内障手术的主要部分任务：(1)透明角膜切开(2)囊膜破裂，(3)超声乳化，(4)去除软性皮质材料，(5)人工晶状体植入。到目前为止，我们在居民试验之前的最新科学突破是一个复杂的数学模型，它支撑着晶状体破裂模块，它产生了更真实的、更少过度弹性的模拟晶状体前囊膜撕裂行为。作为STTR第一阶段任务的一部分，该项目的具体目标如下：a)改进晶状体前囊膜的撕裂行为。现有的模型必须变得更没有弹性，更容易撕裂，就像典型的接受白内障手术的老年患者一样。将开发不同程度的模拟弹性来模拟人类晶状体胶囊的弹性变化。B)在角膜切口处放置手术器械和支点。目前的模拟允许居民无限制的操作空间和钳子角度接近晶状体前囊，模拟一种“开放天空”的方法。仪器在角膜切口处的枢轴点需要建模，这个问题的解决方案不是微不足道的。C)晶状体前囊膜的变形性。撕裂前使用者不能轻易判断撕囊钳对晶状体前囊膜的穿透深度。为了提供更好的深度感知，需要对前囊进行实时变形建模。D)外科医生的手术姿势和显微镜模拟。外科医生目前坐在虚拟Phaco训练器前的姿势与在台式电脑前工作所需的姿势相同。合作伙伴打算在固定的框架上放置一个头盔显示器来代表手术显微镜，并将触针直接放在它的正下方，以更准确地代表外科医生在实际手术中的姿势。ImmersiveTouch公司已经与眼部护理行业的大得多的公司，如阿尔康实验室，就胶囊破裂和其他模块的潜在商业化进行了重要的接触，这些公司可能被授予该技术的分销权。公共卫生相关性：ImmersiveTouch Inc.开发创新的增强虚拟现实软件SENSIMMER}，用于神经外科和眼科等领域的住院医师外科培训。该伙伴关系与芝加哥伊利诺伊大学合作，提议开发其白内障手术培训模块并将其商业化。在第一阶段和第二阶段之后，SENSIMMER虚拟人工晶状体训练器将包括五个模块，用于白内障手术的主要部分任务：(1)透明角膜切开(2)囊膜破裂，(3)超声乳化，(4)去除软性皮质材料，(5)人工晶状体植入。

DESCRIPTION (provided by applicant): ImmersiveTouch Inc. develops innovative augmented virtual reality software SENSIMMER} for surgical training of residents in such fields as neurosurgery and ophthalmology. In collaboration with the University of Illinois at Chicago, the Partnership proposes to develop and commercialize its training modules for cataract surgery. Following STTR Phases I and II, the SENSIMMER Virtual Phaco Trainer will include five modules for the major part-tasks of cataract surgery: (1) Clear corneal incision (2) Capsulorrhexis, (3) Phacoemulsification, (4) Removal of soft cortex material and (5) Intraocular lens implant insertion. To date, our most recent scientific breakthrough prior to the residents' trial is a sophisticated mathematical model underlying the capsulorrhexis module, which produces a more realistic and less over-elastic tearing behavior of the simulated anterior lens capsule. The specific aims for this project as part of the STTR Phase I tasks are as follows: a) Refinements of the tearing behavior of the anterior lens capsule. The existing model must be made even less elastic and more prone to tear, as in a typical older patient who undergoes cataract surgery. Different degrees of simulated elasticity will be developed to simulate the variations in the elasticity of the human lens capsule. b) Surgical instrument insertion and pivot point at corneal incision. The current simulation allows the resident unlimited operating space and forceps angle in approaching the anterior lens capsule simulating an "open sky" approach. A pivot point for the instrument at the corneal incision needs to be modeled, and the solution to this problem is non-trivial. c) Deformability of anterior lens capsule. The depth of penetration of capsulorrhexis forceps towards the anterior lens capsule cannot currently be easily judged by users prior to tearing. Real-time deformability modeling for the anterior capsule is needed to provide a better depth perception. d) Surgeon operating posture and microscope simulation. Surgeons currently sit in front of the Virtual Phaco Trainer in the same posture as that needed to work at a desktop computer. The Partnership intends to place a head-mounted display on a fixed frame to represent an operating microscope, and to position the stylus directly beneath it to more accurately represent the surgeon's posture in actual surgery. Significant contacts for potential commercialization of the capsulorrhexis and other modules have already been made between ImmersiveTouch Inc. and much larger firms in the eye care industry, such as Alcon Labs, which may be granted distribution rights for the technology. PUBLIC HEALTH RELEVANCE: ImmersiveTouch Inc. develops innovative augmented virtual reality software SENSIMMER} for surgical training of residents in such fields as neurosurgery and ophthalmology. In collaboration with the University of Illinois at Chicago, the Partnership proposes to develop and commercialize its training modules for cataract surgery. Following STTR Phases I and II, the SENSIMMER Virtual Phaco Trainer will include five modules for the major part-tasks of cataract surgery: (1) Clear corneal incision (2) Capsulorrhexis, (3) Phacoemulsification, (4) Removal of soft cortex material and (5) Intraocular lens implant insertion.