Multi-Jointed Surgical Instrument for Non-Piercing Occlusion Clip Deployment
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Solution Overview
Problem
Existing medical instruments lack the ability to precisely and efficiently apply a left atrial appendage occlusion clip without piercing the tissue, and there is a need for improved control mechanisms to facilitate repositioning and deployment of such clips during minimally invasive surgical procedures.
Innovation Solution
A medical instrument with a multi-jointed mechanism, including a first and second joint allowing repositioning in different degrees of freedom, and a controller with multiple controls for precise manipulation of repositionable jaws and an occlusion clip, enabling deployment and repositioning of the clip without piercing the tissue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If existing medical instruments are used to apply occlusion clip, then the procedure can be completed, but the precision and efficiency of clip application is insufficient and tissue piercing may occur
Solution Approach 1:
The instrument incorporates a multi-jointed mechanism with first and second joints that allow dynamic repositioning of the end effector in multiple degrees of freedom. The control system enables active repositioning of joint members to precisely position the occlusion clip on the left atrial appendage without piercing the tissue, resolving the contradiction between placement precision and tissue integrity
Solution Approach 2:
The instrument allows repositioning of the end effector and occlusion clip in multiple degrees of freedom through controlled movement of joint members. This parameter adjustment capability enables precise positioning of the clip to achieve optimal placement on the left atrial appendage while maintaining tissue integrity and avoiding piercing
2Adaptability or versatility
If existing instruments are used, then the procedure can be performed, but repositioning capability and control versatility are limited
Solution Approach 1:
The control system is segmented into multiple independent controls: first control for repositioning the first joint member, second control for repositioning the second joint member, and third control for repositioning the jaws. This segmentation provides versatile repositioning capability while keeping each control mechanism manageable and understandable
Solution Approach 2:
The multi-jointed mechanism with multiple controls serves multiple functions: positioning the end effector in space, orienting the occlusion clip, and controlling jaw movement. This universal design achieves high adaptability and repositioning capability while integrating functions into a cohesive system
Data Source
AI summary
A medical instrument comprising: (a) a first joint comprising a first member and a second member, the first member configured to be repositionable with respect to the second member in a first degree of freedom; (b) a second joint operatively coupled to the first joint, the second joint comprising a third member and a fourth member, the third member configured to be repositionable with respect to the fourth member in a second degree of freedom; (c) a pair of repositionable jaws operatively coupled to the first joint and the second joint; (d) an occlusion clip detachably mounted to the pair of repositionable jaws; and, (e) a controller operatively coupled to the first joint, the second joint, and the pair of repositionable jaws, the controller including a first control configured to direct repositioning of at least one of the first member and the second member, and a second control configured to direct repositioning of at least one of the third member and the fourth member, and a third control configured to direct repositioning of the pair of repositionable jaws.