Spinal Surgical Instrument Guide Element for Pedicle Screw Alignment
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Solution Overview
Problem
In spinal surgery, particularly in pedicle screw fixation and minimally invasive procedures, surgeons face challenges in accurately locating and guiding surgical instruments to implanted devices due to limited operative space and tissue interference, leading to increased operation time, tissue damage, and prolonged recovery.
Innovation Solution
A spinal surgical instrument with a guide element featuring guide holes that align with the guiding unit of implanted precedent devices, allowing the instrument to be smoothly guided along the guiding unit, reducing the need for tissue retraction and improving precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional surgical instruments are used without guide elements, then surgeons can manipulate instruments freely, but it becomes difficult to locate implanted devices and guide instruments accurately due to muscle and ligament tissues blocking the operative field
Solution Approach 1:
The guide element acts as an intermediary component that connects the surgical instrument to the implanted device. The guide element includes a guide hole that receives the guiding unit of the implanted device, creating a mechanical linkage that directly guides the instrument to the target location without requiring the surgeon to manually navigate through obstructive tissues.
Solution Approach 2:
The guiding unit is pre-attached to the implanted device before surgery. This preliminary action ensures that the guidance pathway is already established when the surgical instrument needs to be positioned, eliminating the need for complex real-time localization maneuvers during the procedure.
2Productivity
If surgeons manually locate and approach implanted devices without guidance, then no additional guide components are needed, but operation time increases and tissue damage worsens due to constant tissue retraction and anatomical destruction
Solution Approach 1:
The guide element serves as a mediator that establishes a direct pathway between the surgical instrument and the implanted device. This mechanical guidance system eliminates the need for surgeons to constantly retract and separate muscle and ligament tissues, thereby reducing tissue trauma and blood loss while accelerating the surgical process.
Solution Approach 2:
The guide element extracts the guidance function from the complex manual localization process. By providing a dedicated guide hole that receives the guiding unit, the system separates the guidance task from the instrument manipulation task, allowing surgeons to focus on precise instrument delivery without the burden of continuous tissue management.
3Ease of operation
If minimally invasive surgery is performed with limited operative space, then patient recovery is faster, but it becomes more difficult to locate and engage surgical instruments with implanted devices
Solution Approach 1:
The guide element acts as a critical intermediary that bridges the gap created by limited operative space in minimally invasive surgery. The guide hole provides a defined pathway that allows surgical instruments to be accurately delivered to the implanted device through small incisions, maintaining the benefits of minimally invasive approach while overcoming the challenge of reduced visibility and access.
Data Source
AI summary
The present invention discloses a spinal surgical instrument and a method of guiding thereof. The spinal surgical instrument is operated with a precedent device. The precedent device includes at least one guiding unit. The spinal surgical instrument includes an operating element, an extending element, a handling element and a guide element. One end of the extending element connects to the operating element. The other end of the extending element connects to the handling element. The guide element is disposed on the extending element and includes at least one guide hole. The operating element is guided to the precedent device by the passing of the guide hole along the guiding unit.