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From Dry Box to Dry Cup: Portable Laparoscopic Training Through Task Decomposition.

Takuma Iwai¹, Hiroshi Makino¹, Hiroshi Yoshida¹

¹Gastroenterological Surgery, Nippon Medical School, Tokyo, JPN.

|May 18, 2026

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The Dry Cup offers a portable, decomposition-first approach to laparoscopic training, using simple materials for accessible skill development. This method enhances deliberate practice, improving surgical education accessibility, especially in resource-limited settings.

Area of Science:

Medical Education
Surgical Training
Minimally Invasive Surgery

Background:

Laparoscopic training is lengthy due to 2D vision and hand-eye dissociation challenges.
Access to effective off-the-job laparoscopic training is limited by resources and time.

Purpose of the Study:

To introduce the Dry Cup, a portable, decomposition-first training philosophy for laparoscopic skills.
To provide an accessible and adaptable training solution outside traditional simulation centers.

Main Methods:

Utilizing readily available materials, portable instruments, a webcam, and consumer displays to create a 2D training environment.
Decomposing complex laparoscopic skills into hierarchical, trainable work units for targeted practice.
Implementing a portable training philosophy for task-specific practice anytime, anywhere.

Keywords:

education and training laparoscopic box training laparoscopic surgeries laparoscopic training skill training

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Main Results:

The Dry Cup enables learners to identify and address performance bottlenecks through focused practice.
Facilitates deliberate off-the-job training integration into clinical routines.
Offers a cost-effective and accessible alternative to traditional simulation resources.

Conclusions:

The Dry Cup approach enhances laparoscopic skill acquisition through task decomposition and portability.
This philosophy can help reduce disparities in surgical education, particularly in resource-limited environments.
Promotes flexible and accessible surgical training, improving overall competency.