Ultrasonic Scalpel Blade Groove for Faster Bone Fragmentation

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Solution Overview

Problem

Existing medical ultrasonic scalpels are inefficient in cutting or fragmenting bone tissue due to slow processing times.

Innovation Solution

A medical ultrasonic scalpel with a blade featuring a cutting groove that forms an annular cutting face, allowing the blade to cut or fragment bone tissue with a small area of contact, thereby increasing efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the bone tissue is ground or drilled using a medical ultrasonic scalpel to process it into smaller pieces, then the bone tissue can be handled, but the processing is slow and less efficient

Engineering Contradiction:
Improveprocessing efficiencyVSAvoidprocessing time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The blade is divided into multiple cutting edges arranged along its length, with each cutting edge capable of independently cutting bone tissue. This segmentation allows simultaneous engagement of multiple cutting edges with the bone, processing a larger volume of bone in parallel rather than sequentially, thereby significantly improving processing efficiency and reducing time

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention transitions from traditional single-point or single-line cutting to a multi-dimensional cutting approach where multiple cutting edges are distributed along the blade length. This creates a volumetric cutting zone that engages bone tissue across multiple points simultaneously, adding a dimensional aspect to the cutting process that dramatically increases material removal rate

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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 scalpel achieves reduced time and improved working efficiency in cutting or fragmenting bone tissue into large pieces by minimizing the contact area with the cutting face.

Implementation Method 1

a vibration source connected to a blade of the medical ultrasonic scalpel and configured to generate vibration

Methodology Applied
Scientific EffectUltrasonic vibration: Ultrasonic Vibration

Data Source

PatentUS20260007429A1Medical Ultrasonic Scalpel, Medical Ultrasonic Scalpel System, and Robot-Assisted Ultrasonic Scalpel System
Publication Date: 2026.01.08 SMTP MEDICAL CO LTD
  • US20260007429A1 patent drawing
  • US20260007429A1 patent drawing
  • US20260007429A1 patent drawing

AI summary

Disclosed are a medical ultrasonic scalpel, a medical ultrasonic scalpel system, and a robot-assisted ultrasonic scalpel system, relating to the technical field of medical instruments. The medical ultrasonic scalpel includes a blade (10) having a first end face (101) and a cutting groove (102), and the cutting groove (102) allows the first end face (101) to form at least one annular cutting face (103). The bone tissue corresponding to a position where the cutting groove (102) is located does not contact the cutting face (103.) It is not needed to cut or fragment the bone tissue corresponding to the position. The cutting face (103) creates a relatively small area of cutting or fragmentation on the bone tissue, but can still cut or fragment the bone tissue into large pieces of bone. Cutting or fragmenting the bone tissue takes less time, achieving higher working efficiency.