Reusable Tissue Morcellator with Interchangeable Trocar Heads
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Solution Overview
Problem
Current laparoscopic morcellators lack features such as built-in gas-inflow/irrigation inlets, interchangeable hand pieces of varying diameters and lengths, audio alerts for RPM, and integrated video tutorials and user guides, which can lead to tissue spillage, injury to surrounding organs, and increased risk of disseminated cancer.
Innovation Solution
A reusable universal tissue morcellator system with a motor drive unit featuring a touch screen and manual operating system, interchangeable trocar sheaths with gas inflow/irrigation inlets, adjustable speed control, and video tutorials, allowing for safe and efficient tissue removal with interchangeable cutter blades and obturators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single-size morcellator hand piece is used, then the device structure is simple, but it cannot accommodate different tissue sizes and surgical requirements
Solution Approach 1:
The morcellator system is divided into modular components: a universal handle and interchangeable hand pieces of different sizes (4mm, 6mm, 10mm, 15mm, 18mm, 22mm). This segmentation allows the handle to remain simple while the hand pieces can be varied to match different surgical needs, resolving the contradiction between versatility and structural simplicity.
Solution Approach 2:
The handle is designed with universal compatibility to work with multiple hand piece sizes through a standardized threaded connection. This multi-functionality allows a single handle to serve various surgical purposes without requiring different handle designs, achieving versatility while maintaining structural simplicity.
2Reliability
If no gas-inflow/irrigation inlet is provided, then the device structure is simple, but tissue spillage and injury to surrounding organs cannot be prevented
Solution Approach 1:
The gas-inflow/irrigation inlet is integrated into the trocar head, merging the functions of tissue removal and fluid/gas delivery into a single component. This allows the morcellator to create pneumoperitoneum and perform irrigation simultaneously, preventing tissue spillage without requiring separate systems.
Solution Approach 2:
The gas-inflow/irrigation inlet acts as an intermediary mechanism that introduces protective fluid or gas between the cutter blade and surrounding tissues, creating a barrier that prevents direct contact and potential injury, while also containing tissue spillage.
3Measurement precision
If no audio alerts and speed control are provided, then the device is simple to operate, but precise control of cutting speed and safety monitoring is insufficient
Solution Approach 1:
Audio alerts provide real-time feedback to the operator about cutting speed, tissue engagement, and potential safety issues. This feedback mechanism enables precise speed control and safety monitoring while maintaining ease of operation through intuitive auditory cues that guide the surgical process.
Solution Approach 2:
Manual speed adjustment mechanisms are replaced with motorized control systems that offer electronic speed regulation. This substitution provides more precise cutting speed control through electronic variables while the user interface remains simple, balancing precision with ease of operation.
4Loss of information
If no video tutorials and user guide are provided, then the device is easy to manufacture, but proper procedure guidance and safety training are insufficient
Solution Approach 1:
Video tutorials and user guides are included in the device packaging, providing preliminary instruction before the surgical procedure. This ensures that operators have proper procedure guidance and safety training readily available without adding complexity to the manufacturing process itself.
Solution Approach 2:
Digital copies of procedure videos and user guides are provided as supplementary materials. These informational copies convey proper technique and safety protocols without requiring physical integration into the device structure, maintaining ease of manufacture while preventing loss of critical information.
Data Source
AI summary
The present invention relates to an improved reusable universal tissue morcellator system. It comprises of a hollow tubed morcellator hand piece locked with flexible rotor cable connected to Motor Drive Unit, having a control panel with a touch screen and manual operating system in the same unit, with inbuilt installation tutorial videos and procedure videos having audio alarms with speed control and activation features using foot pedal or remote control. MDU is addition-ally provided with an external USB port for software and program updating. The cylindrical head of the rotor cable is inserted and locked into the tubular hollow area of the morcellator handle. Morcellator hand piece is having same diameter trocar head (203b), which can be assembled with cannula tube of varying diameter and length, so as to use interchangeable cutter blades of different diameter and length. The trocar head is provided with gas inflow/irrigation inlets.