VR Grip - hand Peripheral for Improved Resident Training in Surgical Simulations

VR Grip - 用于改善外科模拟中的住院医师培训的手外设

基本信息

批准号：
9748823
负责人：
Michael William Martin
金额：
$ 2.8万
依托单位：
LYNNTECH, INC.
依托单位国家：
美国
项目类别：
财政年份：
2018
资助国家：
美国
起止时间：
2018-04-01 至 2019-03-31
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/9748823
关键词：
Administrative Supplement Anatomy Biomimetics Cadaver Closure by clamp Computer Interface Computer software Devices Effectiveness Ensure Environment Equipment Evaluation Family suidae Feedback Fingers Forcep Future Goals Hand Human Human body Joystick Liquid substance Manikins Massachusetts Measures Mechanics Medical Methods Motion Movement Muscle Muscle Fibers Operative Surgical Procedures Organ Participant Patients Peripheral Phase Procedures Rehabilitation therapy Research Research Project Grants Residencies Resistance Skin Speed Surgeon Surgical incisions Tablets Tactile Technology Testing Touch sensation Training Training Programs Transferable Skills Universities Virtual Tool design effectiveness measure equipment acquisition finger movement grasp haptics human tissue improved medical schools movement practice operation prevent programs response scalpel simulation simulation software tool virtual virtual reality

项目摘要

PROJECT SUMMARY 1 A 2009 study found that 4 out of 5 surgical residents extended their training beyond residency because they 2 did not feel adequately trained to practice independently[1]. Medical program directors identified 121 surgical 3 procedures that they considered essential to a surgeon’s training[1]. However, 31 of these procedures (about 4 25% of all essential procedures) were found on average to be performed less than once by residents before 5 completion of residency[1]. Traditional forms of surgical training, such as the use of cadavers or medical 6 manikins, lack the fluid dynamic response to incisions, may not have identical anatomy (e.g. porcine), and may 7 be difficult to procure. In addition, opportunities to perform actual surgeries are very limited. Medical schools 8 have begun utilizing VR surgery simulation software, such as Touch Surgery, which can realistically simulate 9 the human body but lacks the hands-on aspect of a real operation. VR surgery simulation technology has been 10 shown to have a transfer-effectiveness ratio (TER) of 2.28 or, in other words, for every minute spent using VR 11 training an equivalent of 2.28 minutes using traditional training was saved[8]. Despite these benefits, however, 12 current VR training methods have a serious limitation: the software user must interact through a tablet or 13 joystick and does not hold the surgical tools or receive tactile feedback, which diminishes the skill’s transfer 14 effectiveness. As part of a previous research project, Lynntech developed an electromechanical device that 15 uses biomimetic artificial muscle fibers to move muscle-damaged fingers. We propose to transform this device 16 into a hand-worn peripheral to provide residents with the hand-tool interactions needed to realistically simulate 17 a surgery. In this way, the user will be able to hold, rotate, and move objects during the simulated surgery and 18 therefore practice movements needed in an actual surgery without the bulky or restrictive gloves now available. 19 The goal is to develop the VR Grip to increase the TER through more realistic training, leading to fewer 20 complications in actual surgeries. The following aims will be achieved: (1) develop the VR Grip glove, (2) 21 demonstrate that it can be tracked as it moves, (3) demonstrate that it can stop finger movements when 22 encountering virtual objects, and (4) develop the complete workstation. The final product is expected to be a 23 complete workstation that includes a VR headset, the VR Grip glove, a connected computer, interface 24 software, and a VR simulated environment with pre-programmed virtual objects such as scalpels. 25 This application for an Administrative Supplement is to purchase equipment that will allow Lynntech to 26 simulate human testing by measuring force responses to finger actuation. This will provide a significant 27 improvement on measuring the effectiveness of the VR Grip without the need for human testing in Phase I. In 28 this Administrative Supplement application, we are requesting monies for equipment and labor to install and 29 setup.

项目概要 1 2009 年的一项研究发现，五分之四的外科住院医师将培训时间延长到住院医师以外，因为他们 2 认为没有接受过足够的独立执业培训[1] 医疗项目主管确定了 121 名外科手术。他们认为对外科医生培训至关重要的 3 种手术[1] 然而，其中 31 种手术（大约）。 4 发现之前居民平均执行的所有基本程序的 25% 少于一次 5 完成住院医师培训[1]，例如使用尸体或医疗。 6 个人体模型，缺乏对切口的流体动力学响应，可能不具有相同的解剖结构（例如猪），并且可能 7 难以获得此外，进行实际手术的机会也非常有限。 8 已开始使用 VR 手术模拟软件，例如 TouchSurgery，可以真实地模拟 9 人体但缺乏实际操作的VR手术模拟技术。 10 的传输效率比 (TER) 为 2.28，换句话说，每使用 VR 一分钟，传输效率比 (TER) 为 2.28 11 使用传统训练节省了相当于 2.28 分钟的时间[8]，尽管有这些好处，目前的12种VR训练方法都有一个严重的局限性：软件用户必须通过平板电脑或平板电脑进行交互 13 操纵杆不能固定手术工具或接收触觉反馈，这会削弱技能的转移 14 有效性作为之前研究项目的一部分，Lynntech 开发了一种机电设备， 15 使用仿生人造肌肉纤维来移动肌肉受损的手指我们建议改造这个装置。 16 集成到手持式外围设备中，为居民提供真实模拟所需的手动工具交互 17 手术过程中，用户将能够在模拟手术过程中握住、旋转和移动物体。 18 因此，无需使用现有的笨重或限制性手套即可练习实际手术中所需的动作。 19 目标是开发 VR Grip，通过更真实的训练来提高 TER，从而减少实际手术中的 20 种并发症将实现以下目标：（1）开发 VR Grip 手套，（2） 21 证明它可以在移动时被跟踪，(3) 证明它可以在移动时停止手指移动 22 遇到虚拟对象，以及 (4) 开发完整的工作站最终产品预计是一个。 23 个完整的工作站，包括 VR 耳机、VR Grip 手套、连接的计算机、接口 24 软件，以及带有预编程虚拟对象（如手术刀）的 VR 模拟环境。 25 本行政补充申请旨在购买设备，使 Lynntech 能够 26 通过测量手指驱动的力响应来模拟人体测试，这将提供重要的结果。 27 在第一阶段无需进行人体测试的情况下测量 VR Grip 有效性的改进。 28 在这份行政补充申请中，我们要求提供设备和人工的资金来安装和 29 设置。