项目背景
微创腹腔镜手术广泛应用于腹腔外科，腔镜吻合器是术中核心手持器械。客户需要完成新一代吻合器整机工业设计与人机优化，在内部机械结构不变的前提下，重新设计手柄外观、握持曲面与操控布局，打造符合临床使用习惯、具备差异化竞争力的医用外科器械。
核心挑战
- 临床痛点：外科医生长时间单手操作，手部易疲劳，手指发力空间受限，影响操作稳定性；
- 安全约束：扳机、保险结构布局必须防误触，满足医疗器械使用安全要求；
- 工艺限制：外壳需适配注塑成型，表面无藏污死角，能够耐受反复消毒擦拭；
- 品牌视觉：外观风格需要专业简约，建立微创外科器械产品识别特征。
设计落地
- 人机手柄开发 依托手部工程数据，采用手枪式握持构型，优化指托、扳机接触面的曲面弧度，分散手部压力，适配不同手型医生抓握，降低长时间操作劳损。
- 操控系统布局 将保险、击发扳机做分层分区设计，触觉区分明显，术中无需目视即可单手完成操作；优化扳机行程，控制操作反馈力度。
- 壳体造型与卫生设计 手柄与长杆之间做平滑过渡造型，减少棱角与窄缝隙；简化壳体分模线，降低污垢残留风险，适配医院常规消毒流程。
- 外观与配色方案 主体采用医疗级白色，辅以浅灰功能标识，造型线条克制利落，兼顾医疗器械严谨感，区别市面同类产品同质化外观。
用户收益
✅ 临床医生：握持舒适度提升，缓解长时间手术手部疲劳，操控手感稳定，降低误操作概率； ✅ 器械厂商：产品外观差异化，完善产品家族设计语言，外壳结构可量产，满足医疗合规卫生要求； ✅ 终端医院：器械便于清洁消杀，维护成本更低，适配手术室标准化使用环境。
Endoscopic Stapler | Case Study
Project Background
Laparoscopic minimally invasive surgery relies heavily on endoscopic staplers as core handheld instruments. The client required industrial design and ergonomic optimization for a new-generation stapler. While retaining the internal mechanical structure, we redesigned handle form, grip surfaces and control layout to deliver a clinically friendly, competitive surgical device.
Core Challenges
- Clinical pain point: Prolonged single-hand operation leads to hand fatigue and unstable manipulation;
- Safety constraint: Triggers and safety locks must be arranged to prevent accidental activation, complying with medical safety regulations;
- Manufacturing constraint: Injection-molded housing must withstand repeated disinfection with minimal crevices;
- Brand identity: A restrained, professional visual style to differentiate from competitors.
Design Execution
- Ergonomic handle development Based on hand anthropometric data, the pistol grip is sculpted with optimized finger rests and curved contact surfaces to distribute pressure and accommodate different hand sizes.
- Control layout optimization Layered safety and firing triggers with clear tactile differentiation enable blind single-handed operation. Trigger travel and feedback force are fine-tuned.
- Housing hygiene-focused design Smooth transition between handle and shaft eliminates sharp edges and narrow gaps. Simplified parting lines reduce contamination risk for routine disinfection.
- Appearance & color scheme Medical white main body with light grey functional markers. Clean, restrained lines create distinct product identity.
User Benefits
✅ Surgeons: Reduced hand fatigue during long procedures, stable control and lower risk of unintended activation. ✅ Manufacturer: Differentiated product appearance, scalable design language, production-ready housing complying with medical hygiene standards. ✅ Hospitals: Easy-to-clean instrument, lower maintenance and fit for standard operating room protocols.
