Auto-injector Retainer Elastic Casing Parallel Alignment
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Solution Overview
Problem
The administration of medical liquids using multiple auto-injectors is time-consuming and complicated, and there is a risk of inappropriate administration sites if the injectors are not properly aligned.
Innovation Solution
An auto-injector retainer that includes multiple retaining units capable of retaining auto-injectors in parallel, with each unit featuring a casing that covers the proximal end of the auto-injector and a cylindrical peripheral wall that elastically deforms to hold the auto-injector in place, ensuring proper alignment and simultaneous administration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple auto-injectors are used to administer medical liquids, then the appropriate dose can be achieved, but the administration time and effort increase
Solution Approach 1:
The patent combines multiple auto-injectors into a single integrated device with a common housing and shared components. The device includes multiple injection needles housed in a single casing with a unified actuation mechanism, allowing simultaneous administration of multiple doses through one integrated system rather than separate injectors
Solution Approach 2:
The device pre-positions multiple auto-injectors in parallel within the housing before use. The retaining units are预先 configured to hold multiple injectors in aligned positions, and the actuation mechanism is pre-loaded to simultaneously activate all injectors when triggered, eliminating the need for sequential operation
2Loss of time
If simultaneous administration by multiple auto-injectors is performed, then administration time is reduced, but the operation becomes complicated and may not be performed appropriately
Solution Approach 1:
The patent merges multiple injection functions into a single housing with a unified actuation mechanism. The trigger mechanism is designed to simultaneously activate all retaining units and injection needles through one motion, simplifying the user action to a single operation rather than coordinating multiple separate injectors
Solution Approach 2:
The housing and actuation mechanism serve multiple functions: they house multiple injectors, retain them in proper alignment, and simultaneously actuate all injection needles. This multi-functionality reduces the number of separate operations required while maintaining precise control over simultaneous administration
3Productivity
If multiple auto-injectors are used for simultaneous administration, then administration efficiency is improved, but the alignment of administration sites may be inappropriate
Solution Approach 1:
The patent implements specific structural features at critical locations within the housing: retaining units with precise geometric constraints, aligned bores for needle positioning, and localized guiding surfaces. These localized quality enhancements ensure that each injector is positioned with appropriate precision while maintaining overall system efficiency
Solution Approach 2:
The device pre-aligns multiple injectors in parallel positions within the housing before use. The retaining units are configured to automatically position each injector at the correct angle and location, ensuring proper administration site alignment is established in advance rather than requiring precise manual positioning during operation
4Ease of operation
If a retainer structure is added to hold multiple auto-injectors, then simultaneous administration is facilitated, but the device complexity increases
Solution Approach 1:
The patent divides the retainer structure into discrete, modular retaining units that can be independently manufactured and assembled. Each retaining unit is a separate component with standardized interfaces, allowing the overall structure to be built from simple, repeatable modules rather than a single complex piece
Solution Approach 2:
The retaining units are nested within the housing structure in a hierarchical arrangement. Each retaining unit contains and positions an individual injector, and multiple retaining units are themselves contained within the common housing. This nested organization manages complexity by creating clear hierarchical boundaries between components
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
The auto-injector retainer facilitates simultaneous administration of medical liquids by multiple auto-injectors without inhibiting their functions, ensuring appropriate alignment of administration sites and reducing the complexity and time required for administration.
Implementation Method 1
a cylindrical peripheral wall elastically deformed when the proximal end of the housing is housed in the casing to hold the proximal end of the housing housed in the casing by an elastic restoring force
Data Source
AI summary
An auto-injector retainer for use in simultaneous administration by a plurality of auto-injectors each having a housing that has a cylindrical shape and houses a prefilled syringe and a gasket pushing mechanism, the auto-injector retainer including: a plurality of retaining units located in parallel, each retaining unit configured to retain a respective one of the auto-injectors. Each of the retaining units includes a casing that covers a proximal end of the housing of the respective auto-injector. Each casing includes: a distal opening into which the proximal end of the housing of the respective auto-injector is insertable, a proximal wall configured to abut on or face a proximal end face of the housing of the respective auto-injector, and a cylindrical peripheral wall configured to elastically deform when the proximal end of the housing of the respective auto-injector is housed in the casing.