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Ultrasonic probe and its injection molding method

An injection molding and ultrasonic technology, which is applied in ultrasonic/sonic/infrasonic diagnosis, sonic diagnosis, infrasonic diagnosis, etc., can solve problems such as unusable ultrasonic probes, and achieve the effect of preventing damage

Active Publication Date: 2019-12-24
NIHON DEMPA KOGYO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, there is a problem that when the casing is damaged, the ultrasonic propagation medium such as oil sealed therein flows out from the casing to the outside, making the ultrasonic probe unusable.

Method used

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  • Ultrasonic probe and its injection molding method
  • Ultrasonic probe and its injection molding method
  • Ultrasonic probe and its injection molding method

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050] Hereinafter, embodiments of the ultrasonic probe and its injection molding method of the present invention will be described with reference to the drawings.

[0051] An ultrasonic probe and an ultrasonic probe using a casing formed by the injection molding method of the present invention Figure 4 to Figure 6 The existing ultrasonic probe shown also includes: a casing 2, which is injection-molded from a polyolefin-based thermoplastic material, and has an opening 26 formed in one direction; The probe body 4 is accommodated in the casing 2; and the power supply cable 6 supplies power to the driving device that makes the probe body 4 swing. In addition, inside the case 2, a probe body 4, which is an ultrasonic transmitting and receiving part including a piezoelectric element group, etc., is provided on a base 5, and an ultrasonic propagation medium L such as oil is enclosed in the case 2 and sealed so that The body surface contact surface of the housing 2 is in contact wi...

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PUM

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Abstract

The invention relates to an ultrasonic probe and an injection molding method thereof. The ultrasonic probe includes the casing (2), and the casing (2) is a formed part formed by injection molding of a plastic material, and is formed as a A container shape with an opening (26) in one direction, the container shape includes a bottom portion (22) through which ultrasonic waves can penetrate, and a peripheral portion (21) that engages with the probe body, and the peripheral portion (21) The wall thickness is greater than the wall thickness of the bottom surface (22), and a longitudinal groove (24) parallel to the demoulding direction of the mold is provided on a part of the peripheral portion (21), separated from the longitudinal groove (24). The gate (G) into which the molten resin flows is provided on the peripheral portion (21) openly for injection molding, and the thin-walled portion is formed on the on the periphery. The invention can prevent the shell from being damaged when impact is applied to the ultrasonic probe.

Description

technical field [0001] The present invention relates to an ultrasonic probe (ultrasound probe) and its injection molding method, in particular to a method of forming a longitudinal groove in the peripheral portion of the shell of an injection-molded ultrasonic probe so that weldlines (weldlines) during injection molding are formed on the Ultrasonic probe whose thick-walled peripheral portion is controlled in a manner and an injection molding method thereof. Background technique [0002] Existing ultrasonic probes 1 such as short-axis swing type for medical diagnosis are as Figure 4 and Figure 5 As shown, it includes a housing 2 made of plastic material, a grip case 3 engaging with the housing 2 , and a power supply cable 6 for supplying power to a driving device that makes the probe body 4 oscillate. Furthermore, on the base 5 provided inside the casing 2, the probe body 4 constituting the ultrasonic transceiver section including the piezoelectric element group and the li...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B8/00
CPCB29K2995/0097A61B8/4272A61B8/4444B29C45/0025B29C2045/0027B29K2101/12B29L2031/3481
Inventor 那珂洋二
Owner NIHON DEMPA KOGYO CO LTD