Acromioplasty Drill with Depth Gradations and Suction
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Solution Overview
Problem
During acromioplasty surgeries, accurately removing bony spurs from the anterior undersurface of the acromion is challenging due to visualization interferences like bone debris, bleeding, and soft tissues, especially for inexperienced surgeons, leading to risks of overcorrection or undercorrection.
Innovation Solution
A drilling device for acromioplasty featuring a twist drill with gradations on its outer surface, a suction port, and a discharge system to precisely measure and remove bony spurs, including a power transmission unit and a hand piece for controlled bone waste discharge, aiding surgeons in achieving the desired depth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional acromioplasty is performed without preliminary drilling, then the surgical procedure is simpler, but the accuracy of bony spur removal is insufficient due to visualization interferences
Solution Approach 1:
The patent applies preliminary action by performing preliminary drilling before the main acromioplasty procedure. The preliminary drill creates a guide hole at the desired depth, allowing the surgeon to accurately remove bony spurs to the correct depth during the subsequent acromioplasty, thereby solving the depth measurement accuracy problem.
Solution Approach 2:
The patent uses an intermediary device - the preliminary drill with depth markings - as a mediator between the surgeon's intent and the actual bone removal. The depth markings on the preliminary drill serve as a visual intermediary that guides the surgeon to remove bone to the precise desired depth, overcoming visualization interferences during the main procedure.
2Reliability
If acromioplasty is performed without depth guidance, then the operation is faster, but the risk of overcorrection or undercorrection increases
Solution Approach 1:
The patent implements feedback through depth markings on the preliminary drill and inner tube assembly. These markings provide real-time visual feedback to the surgeon during the drilling and bone removal process, indicating when the desired depth is reached. This feedback mechanism ensures reliable surgical outcomes by preventing both overcorrection and undercorrection.
Solution Approach 2:
The preliminary drilling step serves as a time-investing preliminary action that establishes the correct depth before the main bone removal. Although this adds some time to the procedure, it ensures reliability by preventing the need for corrective actions later, ultimately making the overall process more efficient.
3Illumination intensity
If bone waste is not efficiently removed during drilling, then the device is simpler, but visualization is blocked by bone debris and bleeding
Solution Approach 1:
The patent merges multiple functions into the drill assembly: the outer tube and inner tube assembly are combined to create a integrated waste removal system. The suction port on the outer tube and the discharge port on the inner tube work together to efficiently remove bone waste during drilling, keeping the surgical field clear without requiring separate waste removal devices.
Solution Approach 2:
The patent introduces an intermediary fluid medium (irrigation fluid) that facilitates waste removal. The irrigation fluid flows through the device, carrying bone debris away from the surgical site through the discharge port, thereby maintaining field of view clarity without directly complicating the mechanical structure.
4Ease of operation
If inexperienced surgeons perform acromioplasty without guidance, then more surgeons can perform the procedure, but the error rate increases due to lack of experience
Solution Approach 1:
The device enables self-service by providing built-in depth guidance and waste removal capabilities that allow inexperienced surgeons to perform acromioplasty with accuracy comparable to experienced surgeons. The depth markings and automated waste removal system compensate for the surgeon's lack of experience, making the procedure accessible while maintaining precision.
Solution Approach 2:
The depth-marked preliminary drill and inner tube assembly serve as intermediaries that transfer the desired depth information from preoperative planning to actual bone removal. This intermediary system allows inexperienced surgeons to achieve precise bone removal by following the visual guidance provided by the device, rather than relying on their own judgment.
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 enables precise removal of bony spurs to the desired depth, reducing the risk of complications and improving surgical accuracy, especially for less experienced surgeons, by providing a clear measurement of the drilling depth and efficient bone waste management.
Implementation Method 1
a suction port formed on an outer circumferential surface of the twist drill... a discharge section disposed between the rotation transmission unit and the inner tube and including a discharge port configured to discharge ground bone wastes to the outside
Data Source
AI summary
Provided is a drilling device for acromioplasty including an outer tube assembly including including a head section having a rotor having a first power transmission unit having a hollow structure and configured to receive power and a twist drill coupled to a lower end of the rotor with a hollow structure and provided with a suction port formed on an outer circumferential surface thereof, and an outer tube having a tubular shape and having one end to which the head section is coupled, an inner tube assembly including an inner tube having a hollow structure and rotatably inserted into the outer tube assembly, a second power transmission unit having a hollow structure and formed at one end of the inner tube to transmit power to the first power transmission unit, a rotation transmission unit formed at the other end of the inner tube and configured to receive a rotational force from the outside, and a discharge section disposed between the rotation transmission unit and the inner tube to discharge ground bone wastes to the outside, and a connecting pipe configured to connect the twist drill and the inner tube such that the ground bone wastes is discharged to the outside.