Osteotome Guide With Slidable Shaft And Lock Assembly

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Conventional osteotomes lack the ability to adjust blade length and operate in multiple modes, limiting their versatility and effectiveness in medical procedures.

Innovation Solution

An osteotome guide with a handle, a slidable shaft, a tool coupler, and a lock assembly that allows for adjustable positioning and locking of the working tool, enabling precise adjustment and secure locking of the osteotome blade to a desired position relative to the osteotome guide.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional osteotomes are used, then the device is simple in structure, but the adaptability and versatility are limited due to fixed blade length and single mode of operation

Engineering Contradiction:

Improveadjustability of blade length and operational modesVSAvoidstructure of osteotome guide

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The osteotome guide is divided into separate functional modules: a handle, a slidable shaft, a tool coupler, and a lock assembly. This segmentation allows each component to perform its specific function independently while contributing to the overall adjustability and versatility of the device.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The shaft is designed to be slidable within the handle, allowing dynamic adjustment of the blade length and position. The lock assembly enables the shaft to be locked at selected positions, providing both mobility for adjustment and stability for operation, thus enhancing adaptability without excessive complexity.

Inventive Principle:

Principle #15Dynamics

Solution Approach 3:

The osteotome guide is designed to operate in multiple modes by allowing the shaft to be positioned at different longitudinal locations and locked securely. This multi-functionality enables the same device to perform various osteotome procedures with different blade lengths and angles, improving versatility while maintaining a unified structural design.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If the shaft is made slidable for adjustment, then the adaptability is improved, but the reliability of maintaining selected position may be compromised

Engineering Contradiction:

Improveadjustability of shaft positionVSAvoidlocking mechanism stability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The lock assembly is designed to secure the shaft at selected positions before operation begins. By pre-locking the shaft in the desired position, the system ensures that the adjustability achieved during setup is maintained reliably throughout the surgical procedure, preventing unintended movement.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The locking mechanism utilizes a collar that rotates about the housing, with the collar's circular geometry providing smooth engagement and disengagement. This rotational locking mechanism ensures reliable positioning while maintaining ease of adjustment, as the circular path allows for precise positioning at any angle around the shaft.

Inventive Principle:

Principle #14Spheroidality (Curvature)

3Reliability

If the lock assembly is added for securing the shaft, then the reliability of position maintenance is improved, but the device complexity increases

Engineering Contradiction:

Improvelocking of shaft positionVSAvoidnumber of components in lock assembly

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The lock assembly components (clamp, collar, biasing member, and locking ribs) are integrated into a unified mechanism where the collar rotation simultaneously controls the clamp's engagement with the shaft. This merging of functions reduces the number of independent controls and simplifies the overall device structure while maintaining reliable locking.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The biasing member automatically urges the clamp into the unclamped position, and the collar's rotation naturally engages or disengages the locking ribs with the shaft grooves. This self-actuating mechanism reduces the need for additional actuators or complex control systems, maintaining reliability while minimizing added complexity.

Inventive Principle:

Principle #25Self-service

4Measurement precision

If multiple grooves are provided on the shaft for locking, then the measurement precision of position selection is improved, but the manufacturing precision requirements increase

Engineering Contradiction:

Improveposition selection accuracyVSAvoidgroove placement and dimensions

Core Design Contradiction:

Measurement precisionVSManufacturing precision

Solution Approach 1:

The grooves are provided at specific locations along the shaft to define discrete locking positions. By concentrating the precision requirements at these localized groove positions rather than requiring uniform precision throughout the entire shaft, the manufacturing complexity is reduced while still achieving accurate position selection at the critical locking points.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS11839386B2Osteotome guide

Publication Date: 2023.12.12 SHUKLA MEDICAL INC

AI summary

An osteotome guide is provided. The osteotome guide includes a handle, a shaft within the handle and slidable to a selected longitudinal position with respect to the handle, a tool coupler attached to a distal end of the shaft for receiving a working tool, and a lock assembly to lock the shaft into the selected longitudinal position with respect to the handle.