Eco-Friendly Skin Stapler Handle Using Molded Pulp Fiber
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing disposable skin staplers are made from petroleum-based plastics, leading to biohazard waste and environmental pollution, with no sustainable recycling methods, and require costly sterilization or incineration, which is inefficient and harmful.
Innovation Solution
A surgical stapler system using eco-friendly materials like Molded Pulp Fiber (MPF) for handle and actuator grips, integrated with a protective sheathing system that allows for clean recycling of non-biohazard components and separate biohazard disposal, reducing waste volume and environmental impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If petroleum-based plastics are used to make disposable skin staplers, then the stapler can be manufactured with sufficient strength and durability, but the waste becomes biohazardous requiring incineration and causes environmental pollution
Solution Approach 1:
The stapler is divided into two separate components: a reusable handle assembly that can be sterilized and reused, and a disposable cartridge containing only the staples and driver. This segmentation allows the handle to be made of durable materials for strength while the disposable portion contains only the necessary consumable elements, reducing biohazard waste volume.
Solution Approach 2:
The invention changes the material parameters by offering handle assemblies made from alternative materials such as molded pulp fiber or other biocompatible materials that can withstand sterilization processes. This allows the handle to maintain sufficient strength for operation while being compatible with recycling or alternative disposal methods that reduce environmental harm.
2Reliability
If the entire stapler is disposed of as biohazard waste after one use, then contamination is prevented, but the volume of waste is maximized and recycling opportunities are lost
Solution Approach 1:
The stapler system is segmented into a reusable handle assembly and a disposable cartridge. The handle assembly can be sterilized and reused multiple times, preventing contamination while minimizing waste. Only the cartridge, containing used staples and driver, is disposed of as biohazard waste, significantly reducing the total waste volume compared to disposing of the entire stapler.
Solution Approach 2:
The reusable handle assembly is recovered after use through sterilization processes and reused for subsequent procedures. Only the consumable cartridge is discarded, allowing the system to recover and reuse the majority of the stapler components, thereby reducing waste volume while maintaining contamination prevention.
3Strength
If hard plastics are used in handle assembly to achieve necessary material strength, then the stapler can withstand operational forces, but the material cannot be easily recycled and environmental sustainability is compromised
Solution Approach 1:
The handle assembly is offered in alternative material configurations such as molded pulp fiber or other biocompatible materials that can withstand autoclave sterilization and maintain sufficient strength for surgical operations. These materials are more environmentally sustainable and can be recycled or disposed of through less harmful methods compared to traditional hard plastics.
Solution Approach 2:
The handle assembly may utilize composite material structures that combine different materials to achieve the necessary strength and sterilization resistance. For example, a molded pulp fiber handle can be designed with structural reinforcements or coatings that maintain operational strength while improving recyclability and environmental sustainability.
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
A surgical stapler includes a handle assembly (80) made of paper pulp products or other eco-friendly material. The handle assembly and components of the staple mechanism housing are designed to account for the decreased material strength of the handle assembly. A new retainer clip (81) or handle retainer includes assembly ribs (82) which include interference fit ribs (96). The retainer clip (81) in combination with a raised circular boss (16) of the handle assembly facilities the use of lower strength materials, such as paper pulp products. An efficient staple housing mechanism includes the use of new staple carrier assembly fixture pin (86) and other disclosed components.