Interchangeable Surgical Bits With Integrated Illumination

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Solution Overview

Problem

Existing surgical instruments require a wide variety of tools with different shapes, sizes, and functionalities, leading to inefficiencies and the need for multiple handles, each often lacking integrated illumination, which complicates surgical procedures and increases the risk of tissue injury during tool changes.

Innovation Solution

A universal handle system with interchangeable surgical instrument bits, featuring a keyed slot for secure attachment to a rigid elevated boss, allowing for multiple functionalities and integrated illumination, enabling a single handle to perform various surgical tasks with enhanced flexibility and directionality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple separate surgical instruments with different handles are used for various surgical functions, then each instrument can be optimized for its specific function, but the number of instruments increases and tissue injury risk increases during tool changes

Engineering Contradiction:

Improvesurgical functionalityVSAvoidnumber of instruments

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a universal handle system with a standardized bayonet connector that can accept multiple interchangeable surgical bits (scalpel blades, curettes, forceps, etc.). This allows a single handle to perform multiple surgical functions by simply changing the attached bit, eliminating the need for multiple separate instruments with different handles.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The surgical instrument is divided into two main segments: a universal handle containing the power source and control mechanisms, and interchangeable surgical bits containing the functional elements. This segmentation allows the functional bits to be changed while retaining the expensive handle, reducing overall instrument complexity and cost.

Inventive Principle:

Principle #1Segmentation

2Adaptability or versatility

If multiple separate surgical instruments are used, then each instrument can be optimized for its specific function, but the risk of tissue injury during tool changes increases

Engineering Contradiction:

Improvesurgical functionalityVSAvoidtissue injury risk

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

By implementing a universal handle that can accept multiple surgical bits through a standardized connector, the system eliminates the need to repeatedly attach and detach different handles during surgery. The surgeon can quickly change between different surgical functions by simply swapping bits on the same handle, minimizing exposure time and tissue injury risk.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Device complexity

If a single handle with interchangeable bits is used, then the number of instruments is reduced and versatility is improved, but the attachment mechanism must accommodate different bit types and forces

Engineering Contradiction:

Improvenumber of instrumentsVSAvoidbit compatibility

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The bayonet connector provides a universal attachment mechanism that can securely hold various bit types (scalpel blades, curettes, forceps, etc.) through a standardized interface. The keyed slot and elevated boss design ensures proper alignment and secure attachment while accommodating different bit geometries and material properties.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The attachment mechanism features a keyed slot with specific geometric characteristics that provide different levels of flexibility and rigidity in different regions. The slot is designed to be slightly deformable to facilitate attachment while maintaining sufficient rigidity to transmit surgical forces effectively during use.

Inventive Principle:

Principle #3Local quality

4Strength

If scalpel blades are made substantially rigid for cutting function, then cutting performance is improved, but the keyed slot must be deformable for attachment, creating a design conflict

Engineering Contradiction:

Improveblade rigidityVSAvoidkeyed slot flexibility

Core Design Contradiction:

StrengthVSEase of manufacture

Solution Approach 1:

The scalpel blade is designed with non-uniform properties: the keyed slot region is made slightly deformable to facilitate attachment to the bayonet connector, while the cutting portion maintains substantial rigidity for effective tissue cutting. This local differentiation of mechanical properties resolves the conflict between attachment ease and cutting performance.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS12544052B2Multi-functional surgical instrument with attachable surgical instrument bits

Publication Date: 2026.02.10 NANO SURGICAL INC

AI summary

Surgical instrument bits mate to a multi-function surgical handle. The surgical instrument bits include an integrated light source, and are disposable or reusable. Surgical instrument bits comprise scalpel blades, skin hooks, retractors, curettes, comedone extractors, forceps, elevators, dissectors, elevators, bone hooks, suture removers, punch biopsy instruments and probes, reflecting devices such as mirrors, trocars and splinter liberators.