Bioinjection Device Tip with Directional Dispersion Apertures
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Solution Overview
Problem
Existing methods face challenges in accurately and effectively delivering pharmaceuticals, such as bone morphogenic protein and antibiotics, directly to bone fractures or degenerative bone tissue during surgery due to the complex positioning of bones within soft tissues, often causing damage to surrounding tissues.
Innovation Solution
A bioinjection device that includes a housing with a rotatable gripping portion, a trigger mechanism, and a needle within a shaft, which deploys a membrane-encased cartridge containing the pharmaceuticals directly into the bone fracture or degenerative tissue, using a bioabsorbable matrix for delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional injection methods are used to deliver pharmaceuticals to bone fractures, then the delivery process is simple, but the accuracy of drug placement is poor and surrounding tissues are damaged
Solution Approach 1:
The injection device is segmented into multiple components including a needle assembly, cartridge, and directional control mechanism. The tip is further segmented with multiple apertures arranged in different orientations, allowing precise targeting of the fracture site while avoiding surrounding tissues through selective aperture orientation.
Solution Approach 2:
The tip of the needle is equipped with multiple apertures having different orientations and characteristics. This allows the practitioner to select and activate only the specific aperture(s) that will deliver the pharmaceutical directly to the fracture site, while other apertures remain inactive to avoid damaging surrounding tissues. Each aperture is optimized for a specific delivery direction and tissue type.
2Adaptability or versatility
If a single aperture tip is used for injection, then the device structure is simple, but the ability to deliver drugs in multiple directions is limited
Solution Approach 1:
The tip incorporates a directional control mechanism that allows dynamic selection and activation of different apertures based on the specific anatomical requirements. The practitioner can adjust which aperture is active during the procedure, enabling the same tip to adapt to various injection angles and target locations without requiring multiple different tips.
Solution Approach 2:
The multi-aperture tip design allows a single tip structure to perform multiple injection functions. By incorporating apertures in different orientations (e.g., lateral, medial, anterior, posterior), the tip can deliver pharmaceuticals in multiple directions from a single insertion point, making it universally applicable to various fracture configurations and anatomical locations.
3Manufacturing precision
If manual injection techniques are used, then the equipment required is minimal, but the precision and control of drug delivery are insufficient
Solution Approach 1:
The cartridge serves as an intermediary component between the practitioner and the fracture site. It contains the pharmaceutical and provides a controlled release mechanism through the selective activation of different apertures. The cartridge system mediates the delivery process by ensuring precise dosing and directional control, while the practitioner simply needs to select and activate the appropriate aperture rather than manually controlling the entire delivery process.
Data Source
AI summary
The bioinjection device has a housing including a pistol grip and an elongated barrel. A trigger is pivotally mounted to the housing. An inner shaft having a distal end is slidable between a first position in which the distal end of the inner shaft is disposed in the barrel and a second position in which the distal end of the inner shaft extends past an opening in the end of the barrel. A tip containing a medicament is disposed about the opening of the elongated barrel. The tip includes at least one aperture for dispensing the medicament. One can inject the medicament from the tip into a bone fracture or degenerative bone tissue during surgery by actuating the trigger of the bioinjection device. A configurable tip may be employed to control the amount and direction of dispersion of such medicament.