Spinal Implant Delivery Device with Removable Distraction Blades
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Solution Overview
Problem
Current spinal fusion procedures face challenges in achieving controlled disc preparation and implant insertion, particularly in maintaining structural integrity and ensuring proper distraction to prevent implant expulsion and promote bone healing.
Innovation Solution
A device with a handle and head that serves as both a distractor and guide for spinal implant delivery, featuring engagement features for removable blades and an implant holder, allowing for controlled insertion and deployment of spinal implants across various spinal procedures, including PLIF, TLIF, ALIF, and cervical spine procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional separate instruments are used for disc preparation and implant insertion, then procedural flexibility is maintained, but controlled delivery and positioning precision are compromised
Solution Approach 1:
The patent combines the disc preparation function and implant delivery function into a single integrated device. The delivery device includes a preparation instrument holder that can receive various disc preparation instruments (curettes, rongeurs, drills) and an implant holder that can be positioned and delivered through the same device, eliminating the need for separate instruments and improving positioning precision through controlled delivery
Solution Approach 2:
The delivery device is designed with multi-functionality to perform multiple surgical tasks. It can accommodate different disc preparation instruments through the preparation instrument holder, deliver implants through the implant holder, and provide distraction force through the blade mechanism, making it a universal device for various spinal fusion procedures
2Reliability
If excessive distraction force is applied to achieve proper disc space expansion, then implant stability is improved, but risk of vertebral endplate damage increases
Solution Approach 1:
The distraction mechanism uses a blade that can be dynamically adjusted and removed. The blade is inserted into the disc space to provide controlled distraction force, and can be removed after the desired expansion is achieved. This dynamic approach allows the surgeon to apply force progressively and monitor the effect, reducing the risk of sudden endplate damage while achieving stable implant positioning
3Manufacturing precision
If multiple separate surgical instruments are used for disc preparation, then comprehensive preparation is achieved, but surgical time and procedural complexity increase
Solution Approach 1:
The delivery device integrates multiple disc preparation functions into a single instrument holder. The preparation instrument holder can receive various instruments (curettes, rongeurs, drills) and allows comprehensive disc space preparation without requiring the surgeon to switch between multiple separate surgical instruments, thereby reducing surgical time while maintaining preparation quality
Data Source
AI summary
Provided are modular implant delivery systems, devices and methods. In some embodiments, spinal implant delivery devices and methods are provided. An exemplary delivery device may include a head supported by a handle. The head may have an opening defining an insertion axis. The handle may have a handle axis that traverses the insertion axis. The head may also be configured to releaseably couple one or more blades.