Ultrasound Probe Housing Sinusoidal Interface

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Solution Overview

Problem

Conventional ultrasound probe housings face manufacturing challenges such as high scrap rates due to cosmetic or ergonomic failures, bond line weaknesses, and complex manufacturing processes, particularly in joining portions of the housing, which affects their reliability and ability to resist impact.

Innovation Solution

The use of a sinusoidal interface geometry between housing bodies, which provides a near-continuous joining mechanism capable of distributing shear loads and facilitating alignment, along with snap-fit features that eliminate the need for closing tools and reduce assembly time, enhances the structural integrity and manufacturing efficiency of the ultrasound probe housing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional joining methods (RTV, epoxy-bonded ribs, post-and-tube, crush-rib features) are used to join housing portions, then assembly is achieved, but bond line failures occur, manufacturing complexity increases, and alignment problems arise

Engineering Contradiction:
Improvebond line strengthVSAvoidmanufacturing process complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies a sinusoidal (curved) interface geometry between housing portions instead of conventional flat or ribbed interfaces. This curved geometry distributes stresses more uniformly along the bond line, eliminating stress concentrations that cause failure in conventional designs. The sinusoidal shape creates continuous contact surfaces that improve bonding reliability while simplifying the manufacturing process by eliminating the need for separate alignment features like posts and tubes.

Inventive Principle:
Principle #14Spheroidality (Curvature)

2Ease of manufacture

If conventional housing joining methods are used, then assembly is achieved, but high scrap rates occur due to cosmetic or ergonomic failures

Engineering Contradiction:
Improveassembly processVSAvoidcosmetic and ergonomic quality
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent merges multiple functions into the sinusoidal interface: it provides structural joining, alignment, and cosmetic surface continuity simultaneously. The continuous curved geometry ensures that housing portions align perfectly during assembly, eliminating gaps or misalignments that would cause cosmetic failures. This integrated approach improves both manufacturability and final product quality.

Inventive Principle:
Principle #5Merging (Combining)

3Strength

If conventional alignment features (post-and-tube, crush-rib) are used, then housing portions are joined, but shear load resistance is insufficient and misalignment occurs

Engineering Contradiction:
Improveshear load resistanceVSAvoidalignment precision
Core Design Contradiction:
StrengthVSManufacturing precision

Solution Approach 1:

The sinusoidal curved interface provides continuous contact surfaces that naturally guide alignment during assembly. The curved geometry distributes shear loads uniformly across the entire interface area rather than concentrating them at discrete rib or post locations. This continuous load distribution significantly improves shear strength while the self-aligning nature of the curved surfaces eliminates misalignment problems.

Inventive Principle:
Principle #14Spheroidality (Curvature)

Data Source

PatentUS12089992B2Ultrasound probe housing with sinusoidal interface and associated devices, systems, and methods
Publication Date: 2024.09.17 KONINKLIJKE PHILIPS NV
  • US12089992B2 patent drawing
  • US12089992B2 patent drawing
  • US12089992B2 patent drawing

AI summary

The present application provides an ultrasound probe comprising a housing that includes a coupling interface having a sinusoidal geometry. The housing is formed by a first body (300) and a second body having opposite and corresponding sinusoidal geometries. The first body includes a first proximal portion (105) and a first distal portion (107). The first proximal portion comprises a first sinusoidal shape (326). The second body includes a second proximal portion and a second distal portion. The second proximal portion comprises an opposite second sinusoidal shape. The first body and the second body are coupled to form a handle having a sinusoidal interface. Further, the first distal portion and the second distal portion form a head portion at which the ultrasound transducer assembly is disposed.