Powered Bone Marrow Aspiration Needle with Sterile Containment
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Solution Overview
Problem
Current bone marrow aspiration and biopsy procedures are challenging due to the need for substantial manual force, which can cause patient discomfort, potential bone damage, and increased risk of complications for both patients and healthcare personnel, especially when accessing softer bones or bones affected by disease.
Innovation Solution
A powered driver and coupler assembly system is used to insert and rotate an intraosseous needle set into bone, reducing physical requirements and enhancing control, with a biopsy needle featuring a single helical thread for capturing bone marrow specimens, and a containment bag for sterile operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual force is applied to insert the intraosseous needle into the bone, then the needle can be inserted into the bone, but patient discomfort and potential bone damage increase
Solution Approach 1:
The patent replaces the manual mechanical insertion system with a powered driver system that uses controlled mechanical power to insert the intraosseous needle. The powered driver reduces the physical force required by the operator while maintaining controlled insertion, thereby reducing patient discomfort and preventing bone damage through more precise and less traumatic insertion.
Solution Approach 2:
The powered driver acts as an intermediary device between the operator and the intraosseous needle. It receives input from the operator and translates it into controlled mechanical motion for needle insertion, providing better control over the insertion process and reducing the direct manual force applied to the patient's bone.
2Quantity of substance
If multiple penetration sites are used to obtain sufficient bone marrow, then enough bone marrow can be collected for transplant, but the procedure becomes more labor intensive and time-consuming
Solution Approach 1:
The powered driver with coupler assembly serves as an intermediary that enables more efficient bone marrow collection. By providing controlled rotational and insertion motion, it allows for more effective aspiration at each penetration site, potentially reducing the number of sites needed and improving overall procedural efficiency while maintaining the required bone marrow volume.
Solution Approach 2:
The powered driver introduces dynamic motion (rotation and controlled insertion) to the bone marrow aspiration process. This dynamic approach enhances the effectiveness of each penetration site by improving marrow access and collection efficiency, thereby reducing the need for multiple penetration sites and increasing procedural productivity.
3Force
If considerable manual force is applied during needle insertion, then the needle can penetrate the bone, but operator control is lost and operator fatigue increases
Solution Approach 1:
The powered driver system replaces the operator's direct manual mechanical effort with a motorized system. This substitution provides controlled force application through the drive shaft and coupler assembly, maintaining operator control while eliminating the physical strain and fatigue associated with applying considerable manual force for needle penetration.
4Measurement precision
If multiple insertions are performed to obtain satisfactory bone marrow specimen, then diagnostic accuracy is improved, but the risk of accidental needle sticks and missed target areas increases
Solution Approach 1:
The powered driver with coupler assembly acts as an intermediary that enhances procedural safety. It provides consistent, controlled motion and positioning for each insertion attempt, reducing the variability and risk associated with manual insertions. This improves reliability by minimizing accidental needle sticks and missed target areas while maintaining the ability to obtain high-quality specimens through multiple insertions when necessary.
Data Source
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AI summary
Various devices and methods may be provided to aspirate bone marrow from an associated bone using a powered drive and an aspiration needle or aspiration needle set. Such aspiration devices and methods may also be used in association with stem cell transplant procedures. The aspiration devices may include a coupler assembly, a containment bag or sterile sleeve, an ejector and/or an ejector funnel. An aspiration needle set may include a cannula and trocar with respective tips having optimum configurations, dimensions and/or orientations relative to each other to optimize penetration of a bone and/or bone marrow with minimum trauma to a patient. Exterior portions of some cannulas may include markings to indicate depth of penetration into associated bone marrow. Some cannulas may include one or more side ports for use during aspiration of bone marrow.