Integrated Ultrasonic Osteotome Bit for Surgical Efficiency

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Solution Overview

Problem

In orthopedic surgery, the frequent replacement of tool bits for ultrasonic osteotomes reduces surgical efficiency, increases operator fatigue, and disrupts the continuity of operations, leading to longer surgery times and higher risks due to the need for repeated adjustments and adaptations during procedures.

Innovation Solution

A tool bit for an ultrasonic osteotome with an integral structure combining a grinding part and a blade, featuring an umbrella-shaped cross-section, crisscrossed grooves, tooth-shaped cutting edges, and a frustum connecting portion, allowing for multiple uses without frequent replacement, enabling precise control over cutting depth and shape, and facilitating hemostasis and coagulation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple tool bits are replaced during surgery to achieve different cutting effects, then the versatility of the surgical tool is improved, but the surgical efficiency is reduced and operation time is prolonged

Engineering Contradiction:
Improveversatility of surgical toolVSAvoidsurgical efficiency
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The tool bit integrates multiple functional structures including a cutting edge for cutting operations, a grinding part for grinding operations, and a scraping part for scraping operations. This multi-functional design allows a single tool bit to perform multiple surgical tasks that previously required different specialized tool bits, thereby improving surgical efficiency while maintaining versatility.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The invention combines previously separate tool bits (cutting tool bit, grinding tool bit, scraping tool bit) into a single integrated tool bit structure. The cutting edge, grinding part, and scraping part are merged into one unified tool bit that can be attached to the ultrasonic osteotome handle, eliminating the need for frequent replacements during surgery.

Inventive Principle:
Principle #5Merging (Combining)

2Adaptability or versatility

If tool bits are frequently replaced during surgery, then different cutting effects can be achieved, but the continuity of operation is disrupted and operator fatigue increases

Engineering Contradiction:
Improvecutting effect varietyVSAvoidoperation continuity
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The integrated tool bit provides multiple cutting effects (cutting, grinding, scraping) through its different functional parts, allowing the surgeon to achieve various cutting effects without replacing the tool bit. This maintains operation continuity and reduces the time lost to tool bit replacements while preserving the versatility needed for different surgical requirements.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Manufacturing precision

If multiple specialized tool bits are used for different operations, then the precision of each operation is improved, but the device complexity and workload increase

Engineering Contradiction:
Improveoperation precisionVSAvoidtool bit variety
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The invention merges multiple specialized tool bits into a single integrated tool bit that incorporates a cutting edge, grinding part, and scraping part. This reduces the number of different tool bits the surgeon needs to manage and replace, simplifying the device complexity while maintaining the precision of each operation through the specialized functional parts within the unified structure.

Inventive Principle:
Principle #5Merging (Combining)

4Adaptability or versatility

If tool bits are replaced constantly during surgery, then different surgical needs can be met, but the risk of surgical errors increases due to repeated adaptations

Engineering Contradiction:
Improvesurgical flexibilityVSAvoidsurgical safety
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The integrated tool bit provides surgical flexibility through its multiple functional parts (cutting edge, grinding part, scraping part) while eliminating the need for repeated tool bit replacements. This reduces the risk of surgical errors associated with frequent adaptations and re-acclimatization to different tool bits, thereby improving surgical safety while maintaining the ability to meet different surgical needs.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The integrated tool bit reduces operation time, improves surgical efficiency, minimizes bone loss, and enhances patient recovery by allowing continuous operation with reduced interruptions and improved precision, while also lowering production costs and resource usage.

Implementation Method 1

An ultrasonic osteotome employs high-intensity focused ultrasound technique that converts electrical energy to mechanical energy through a transducer

Methodology Applied
Scientific EffectPiezoelectric effect: Piezoelectric Effect

Implementation Method 2

evaporates water in the contacted tissue cells and breaks protein hydrogen bonds through highfrequency ultrasound concussion

Methodology Applied
Scientific EffectUltrasonic heating: Ultrasonic Vibration

Implementation Method 3

breaks protein hydrogen bonds through highfrequency ultrasound concussion, so as to completely destroy bone tissues

Methodology Applied
Scientific EffectUltrasonic cavitation: Cavitation

Data Source

PatentEP3449846B1Bit of piezosurgery
Publication Date: 2023.09.06 BEIJING SMTP TECH CO LTD
  • EP3449846B1 patent drawingFigure 1
  • EP3449846B1 patent drawingFigure 2~3
  • EP3449846B1 patent drawingFigure 4A~5

AI summary

Disclosed is a tool bit for an ultrasonic osteotome, comprising a cutting portion (1) located at a front end of the tool bit for an ultrasonic osteotome, a connecting portion (2) located at a rear end of the tool bit for an ultrasonic osteotome and connected with the cutting portion (1). The cutting portion (1) has a grinding part (3) for grinding and a blade part (4) for cutting at a front end thereof, and the grinding part (3) and the blade (4) are integrally formed. The tool bit for an ultrasonic osteotome is of an integral structure formed by grinding part (3) and blade (4). During an operation, a medical worker can use the tool bit for an ultrasonic osteotome for multiple uses with no need to replace the tool bit frequently, thus reducing the operation time, greatly improving the efficiency of surgery, reducing the risk of surgery and the sufferings of a patient. At the same time, the integration of two different types of tool bits can also lower production costs and save manpower and material resources. The tool bit for an ultrasonic osteotome of the disclosure can be operated conveniently and comfortably with high safety.