Bone Drilling Driver With Real-Time Penetration Depth Feedback
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Solution Overview
Problem
Conventional bone drilling techniques in orthopedic surgery are technically demanding, require separate measuring steps, and often result in inaccurate depth measurements, leading to increased radiation exposure, wasted hardware, and procedural delays.
Innovation Solution
A medical driving device with a programmable electronics package that measures torque and axial force, providing real-time feedback to ensure precise control and measurement of tool penetration depth, reducing the need for additional radiographs and minimizing tissue damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional depth gauges are used to measure bore depth, then depth measurement is possible, but the procedure becomes time-consuming and requires multiple radiographs
Solution Approach 1:
The patent combines the drilling operation with real-time depth measurement by integrating a depth sensing system into the drill device itself. The depth gauge is merged with the drill shaft, allowing simultaneous drilling and measurement without separate measuring steps, thereby reducing procedural time while maintaining measurement precision.
Solution Approach 2:
The patent implements a feedback mechanism where the depth measurement is provided in real-time during the drilling procedure. This allows the surgeon to monitor bore depth continuously and stop drilling at the precise desired depth, eliminating the need for multiple radiographs and reducing overall procedural time.
2Measurement precision
If multiple radiographs are taken to confirm depth and implant sizing, then accurate implant placement can be achieved, but radiation exposure increases
Solution Approach 1:
The patent provides real-time depth feedback during drilling, allowing the surgeon to achieve accurate implant placement without relying on multiple radiographs. This continuous monitoring enables precise control of bore depth and implant insertion depth, maintaining placement accuracy while eliminating unnecessary radiation exposure from repeated imaging.
Solution Approach 2:
The patent allows the surgeon to pre-program the desired bore depth and implant insertion depth before the procedure. The system then automatically controls or guides the drilling and implant insertion to these pre-determined depths, ensuring accurate placement without the need for multiple radiographic confirmations.
3Manufacturing precision
If trial and error methods are used for implant sizing, then proper implant fit can be achieved, but hardware is wasted and procedures are delayed
Solution Approach 1:
The patent enables pre-determination of the correct implant size by measuring bore depth accurately during the drilling process itself. With knowledge of the exact bore depth, the surgeon can select the appropriate implant size before implantation, eliminating trial and error, preventing hardware waste, and avoiding procedural delays.
Solution Approach 2:
The real-time depth measurement feedback allows the surgeon to determine the precise bore dimensions during the procedure. This information is used to select the correct implant size immediately, ensuring proper fit on the first attempt and eliminating the need for trial implants and subsequent replacements.
4Measurement precision
If separate measuring steps are required after drilling, then depth control is possible, but the procedure becomes more complex and time-consuming
Solution Approach 1:
The patent merges the depth measurement function directly into the drilling device. The depth gauge is integrated with the drill shaft, and the measurement system is combined with the drilling mechanism, allowing depth control to be achieved as part of the drilling operation itself rather than as a separate subsequent step, thereby simplifying the overall procedure.
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 device allows for safer, controlled drilling by simultaneously controlling and measuring tool penetration, reducing radiation exposure, saving time and resources, and improving patient safety by eliminating trial-and-error implant sizing.
Implementation Method 1
The programmable electronics package can be programmed to sense torque in the second drive element and alert the user when a change in torque is sensed, indicating a change in material strength and density of the work penetrated.
Implementation Method 2
The device can further include an axial force sensor configured to sense the axial force applied at the distal end of the tool guide.
Data Source
AI summary
Disclosed are devices and methods for creating a bore in bone. The devices and methods described involve controlling the drive and measuring the drilling energy of a working tool such that a user can avoid injuries to surrounding structures.