Patient Transport Frame Assembly With Integrated Device Mounting

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional patient transport apparatuses, such as cots and stair chairs, often require patients to be transferred between different devices during transportation, especially when navigating stairs with emergency care equipment, posing challenges for caregivers in narrow spaces.

Innovation Solution

A patient transport apparatus with a seat assembly, fowler assembly, and support frame assembly that allows for adjustable patient support configurations and integrated storage of treatment devices, enabling seamless transition between undocked and docked modes and facilitating stair navigation with built-in track driving devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If separate patient transport apparatuses (cot and stair chair) are used, then specialized functionality for each transport scenario is improved, but device complexity and need for patient transfer between devices increases

Engineering Contradiction:
Improvespecialized functionalityVSAvoidnumber of devices
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines the stair chair and cot into a single integrated patient transport apparatus. The apparatus includes a stair chair configuration with seat assembly, fowler assembly, and foot assembly that can be transformed into a cot configuration by extending the foot assembly and adjusting the fowler assembly to create a flat patient support surface. This eliminates the need for separate devices and patient transfers while maintaining specialized functionality for both stair navigation and ambulance transport.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The apparatus is designed to perform multiple functions: it can operate as a stair chair for navigating stairways, transform into a cot for loading into ambulances, and provide adjustable patient positioning through the fowler assembly. The foot assembly can be extended and locked at different positions, and the fowler assembly can be adjusted between upright and horizontal positions, enabling the single device to replace multiple specialized apparatuses.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Ease of operation

If emergency care equipment is transported separately by caregivers, then equipment accessibility is improved, but caregiver workload and navigation difficulty in narrow spaces increases

Engineering Contradiction:
Improveequipment accessibilityVSAvoidcaregiver efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The patent integrates emergency care equipment storage and support directly into the patient transport apparatus. The frame assembly includes mounting structures that can secure oxygen tanks, medication boxes, and other medical equipment to the apparatus frame. This allows equipment to be transported together with the patient without requiring separate caregivers to carry equipment, improving both accessibility and caregiver efficiency in narrow stairwells.

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If patient transfer between devices is required, then specialized transport capabilities are improved, but treatment continuity and patient comfort deteriorates

Engineering Contradiction:
Improvetransport capabilityVSAvoidtreatment continuity
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The integrated apparatus maintains continuous patient support throughout the entire transport process. The patient remains on the same support surface as the apparatus transitions from stair chair configuration to cot configuration. The fowler assembly and foot assembly work together to maintain patient positioning and support, ensuring treatment continuity and eliminating disruptions associated with transferring between separate devices.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS20240335339A1Patient Transport Apparatus With A Frame Assembly For Supporting A Patient Treatment Device
Publication Date: 2024.10.10 STRYKER CORP
  • US20240335339A1 patent drawing
  • US20240335339A1 patent drawing
  • US20240335339A1 patent drawing

AI summary

A patient transport apparatus for supporting a patient and a patient treatment device. The patient transport apparatus includes a seat assembly having a seat frame. A fowler assembly having a fowler frame is coupled to seat frame and is moveable relative to the seat assembly. The seat and fowler assemblies support the patient. A fowler actuator moves the fowler frame relative to the seat frame. A support frame assembly is coupled to the fowler frame. The support frame assembly includes a handle extending from the fowler frame and has a grasping portion spaced from the fowler frame. A mounting member is coupled to the handle. The mounting member defines a brace surface shaped for supporting the patient treatment device. The brace surface is spaced from a grasping portion of the handle to permit a user to grab the handle while supporting the patient treatment device.