Integrated Kyphoplasty System with Bending Guiders
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Solution Overview
Problem
Current kyphoplasty systems face challenges such as poor bone cement distribution, uncontrollable cement flow, and increased radiation and pain exposure due to the need for multiple tool changes during unilateral surgical approaches, which can lead to ineffective treatment and patient discomfort.
Innovation Solution
An integrated targeted kyphoplasty system featuring a piercing head, tube body with a guider, and handle that allows for single-tool operation, enabling controlled bone cement injection and reduced radiation exposure by allowing the cement outlet to be positioned at the piercing head and the cement channel to be connected to the handle, with a pressure sensor and balloon for controlled expansion and cement distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple tool changes are performed during unilateral kyphoplasty surgery, then different surgical functions (piercing, balloon placement, cement injection) can be achieved, but the number of X-ray exposures and patient pain increase
Solution Approach 1:
The patent combines multiple surgical tools (piercing needle, balloon catheter, and cement injection device) into a single integrated operation channel. This allows all surgical functions to be performed through one piercing without requiring multiple tool changes, thereby reducing X-ray exposures and patient discomfort while maintaining full surgical capability
Solution Approach 2:
The operation channel is designed as a universal platform that can perform multiple functions: initial piercing, balloon placement for vertebral body expansion, and subsequent cement injection. This multi-functional design eliminates the need for separate tools for each surgical step
2Productivity
If traditional unilateral approach tools are used, then surgical time is reduced compared to bilateral approach, but bone cement distribution becomes poor and leakage occurs due to uncontrollable flow direction
Solution Approach 1:
The patent incorporates a guider with adjustable bending capability that allows precise control of the cement injection direction. The guider can be bent to different angles (0-180 degrees) to direct cement flow toward specific target areas within the vertebral body, ensuring uniform distribution and preventing leakage while maintaining the efficiency of unilateral approach
Solution Approach 2:
The guider is designed with dynamic bending capability through a flexible structure with arc-shaped grooves. This allows the injection direction to be adjusted and adapted during the surgical procedure based on real-time anatomical conditions, providing precise control over cement flow direction without compromising surgical speed
3Reliability
If repeated tool replacement is performed, then complete surgical steps can be executed, but the number of operation steps and X-ray exposure times increase
Solution Approach 1:
The patent merges the piercing needle, balloon catheter, and cement injection device into a single integrated operation channel. This allows all surgical steps to be completed through one continuous procedure without removing and replacing tools, thereby maintaining complete surgical functionality while significantly reducing operation time and the number of X-ray exposures required
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
This system enables precise, unilateral bone cement injection with reduced leakage and radiation exposure, improving surgical efficiency and patient comfort by allowing targeted cement placement and distribution without the need for multiple tool changes, thus enhancing the effectiveness and cost-effectiveness of the procedure.
Implementation Method 1
a balloon should be placed after the operation channel is well arranged, and after the balloon is reset
Implementation Method 2
The tube body is provided with an annular medium channel along an axial direction, and the medium channel communicates the balloon with the pressure pump connector
Implementation Method 3
a cement outlet, a cement channel is provided in a center of the tube body, the tube body handle is provided with a cement inlet, and the cement outlet, the cement channel and the cement inlet are in communication with each other
Data Source
AI summary
An integrated targeted kyphoplasty system includes a piercing head, a tube body and a tube body handle. The tube body has an end connected to the piercing head and is provided with a balloon and a guider at an end of the balloon, and another end connected to the tube body handle and provided with a guide knob for controlling the guider to be bent and a pressure pump connector communicating the balloon. The piercing head is provided with a cement outlet, a cement channel is in center of the tube body, and the tube body handle is provided with a cement inlet. The cement outlet, cement channel and cement inlet communicate with each other. The device requires for only one piercing to complete entire KP surgical treatment without changing any tools, greatly decreasing radiation exposure rate of the patient during operation and the pain caused by multiple operations.