Tissue Manipulation and Cutting Device with Rotatable Joint
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Solution Overview
Problem
Current surgical procedures for navigating between tissue planes and dissecting tissues without damaging surrounding tissues are inefficient, requiring multiple instruments and increasing the risk of nerve and blood vessel damage.
Innovation Solution
A handheld surgical device that combines tissue manipulation and cutting capabilities, featuring a dual elongate member design with a rotatable joint, a blade guide housing, and a slidable blade drive body, allowing for both grasping and cutting actions with a single instrument.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple instruments (forceps and scalpel) are used for tissue dissection and cutting, then cutting precision and tissue manipulation capability are improved, but device complexity and surgical procedure time increase
Solution Approach 1:
The patent combines the forceps and scalpel into a single integrated surgical instrument. The shaft portion includes a jaw for tissue manipulation and a blade for cutting, allowing both functions to be performed with one device. This merging eliminates the need to switch between separate forceps and scalpel instruments during surgery.
Solution Approach 2:
The surgical instrument is designed with multi-functionality, where the same device can perform both tissue grasping/manipulation and cutting operations. The jaw and blade are configured to work together as a unified system, enabling the instrument to adapt to different surgical tasks without requiring additional specialized tools.
2Manufacturing precision
If multiple instruments are switched during surgery, then tissue dissection precision is improved, but loss of time and surgical efficiency worsen
Solution Approach 1:
By merging the forceps and scalpel into a single instrument with integrated jaw and blade components, the surgeon eliminates the time loss associated with switching between multiple instruments. The unified design allows continuous surgical action without interruption for instrument changes.
Solution Approach 2:
The integrated instrument enables continuous surgical action by combining tissue manipulation and cutting capabilities in one device. The surgeon can seamlessly transition between grasping and cutting functions without removing or replacing instruments, maintaining uninterrupted useful action throughout the procedure.
3Productivity
If multiple instruments are used near nerves and blood vessels, then tissue cutting capability is improved, but object-affected harmful factors increase
Solution Approach 1:
The integrated design combines the jaw and blade into a single coordinated unit that can manipulate and cut tissue while maintaining consistent control. This unified instrument reduces the risk of accidental injury to nerves and blood vessels by eliminating the need to switch between separate instruments near critical structures.
Solution Approach 2:
The instrument is designed with self-contained functionality where the jaw and blade work together as an integrated system. The blade is positioned and controlled through the jaw structure, allowing the instrument to perform cutting functions while inherently protecting surrounding tissues through its unified design and controlled blade exposure.
Data Source
AI summary
Combination tissue manipulation and cutting devices having first and second elongate members rotatably coupled to each other, a blade guide housing disposed on one of the elongate members, and a blade drive body slidably disposed in the blade guide housing and having a blade attachment component. Some blade drive body embodiments include a detent disposed on the body. Certain device embodiments including the first elongate member having a guide slot defined therein such that the blade drive body is slidably disposed adjacent to or within the guide slot. Also provided are methods of manipulating and cutting tissue that include engaging target tissue with any surgical device embodiment herein and urging the blade drive body and blade distally through the blade guide housing such that the blade cuts the target tissue.