Indexable Surgical Handle for Bone Manipulation and Drilling

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Solution Overview

Problem

Existing bone holding devices for orthopedic surgeries, such as those using T-handles, pose risks due to the need for frequent removal and re-attachment during procedures, which can be hazardous and inconvenient.

Innovation Solution

A star-shaped indexable handle mounted onto an elongated shaft with a pilot drill section and bone screw thread, allowing the handle to be indexed between positions for drilling and subsequent concealment within the handle for secure bone manipulation and holding.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the handle is removed and re-attached during the surgical procedure, then the shaft can be driven into the bone and the bone can be manipulated, but this process poses safety risks and is inconvenient

Engineering Contradiction:

Improveconvenience of handle manipulationVSAvoidsafety during handle removal and re-attachment

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The handle and shaft are merged into a single integrated device where the handle can rotate to expose or conceal the proximal section of the shaft. This eliminates the need to completely detach and re-attach the handle, maintaining safety while preserving operational convenience.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The handle is designed to be dynamically reconfigurable through rotation between different positions. The handle rotates to expose the proximal section for drilling operations, then rotates again to conceal it for bone manipulation, providing dynamic adaptability without complete detachment.

Inventive Principle:

Principle #15Dynamics

2Ease of manufacture

If the proximal section of the shaft is exposed for drilling, then power drill or drill brace can be used to drive it into the bone, but the handle cannot simultaneously conceal the shaft for bone manipulation

Engineering Contradiction:

Improveaccessibility for drilling operationVSAvoidhandle configuration complexity

Core Design Contradiction:

Ease of manufactureVSDevice complexity

Solution Approach 1:

The handle rotates between two distinct positions: one where the proximal section is exposed for drilling operations, and another where it is concealed for bone manipulation. This dynamic reconfiguration simplifies the device compared to having separate tools for each operation.

Inventive Principle:

Principle #15Dynamics

3Ease of operation

If the handle is designed to conceal the shaft in a recess, then bone manipulation is more convenient, but the proximal section is not accessible for drilling operations

Engineering Contradiction:

Improveconvenience of bone holdingVSAvoidaccessibility of proximal section for drilling

Core Design Contradiction:

Ease of operationVSEase of manufacture

Solution Approach 1:

The handle rotates between two positions: when rotated to the first position, the proximal section is exposed for drilling; when rotated to the second position, the proximal section is concealed in a recess for comfortable bone holding. This dynamic design provides both functionalities without requiring separate devices.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS10206712B2Surgical implement and method for manipulating a bone

Publication Date: 2019.02.19 T A G MEDICAL DEVICES-AGRICULTURE COOPERATIVE LTD

AI summary

A surgical bone holding implement for manipulating a bone, comprising a handle and an elongated shaft including a bone engaging tip. The handle is positionable with respect to the elongated shaft between first and second positions, for mounting a drill member on the proximal end of the elongated shaft in one position, and for manipulating the bone by means of the handle in a second position.