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Surgical instrument detector

A technology of surgical instruments and detection devices, which is applied in the field of special detection devices for surgical instruments of length and angle, can solve the problems of large errors and low efficiency, and achieve the effects of fast detection speed, easy image processing, and high image resolution

Inactive Publication Date: 2011-05-04
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention discloses a detection device for surgical instruments, the purpose of which is to overcome the disadvantages of existing detection relying on naked eye observation, large errors, low efficiency, and human factors to determine product quality. The invention uses an image acquisition system to process and detect through a computer, Not only can it accurately detect defects and specific dimensions of surgical instruments, but also the image resolution of the workpiece to be detected is high, the subsequent image processing is easy, the detection speed is fast, and the detection results are accurate; saving time and effort, greatly improving the pass rate of products

Method used

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Experimental program
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Effect test

Embodiment 1

[0023] Embodiment 1: Detect the blade length of scalpel:

[0024] Put the handle of the scalpel on the support plate 10 of the adjustment device, place the knife head on the glass bracket 6 of the surgical instrument positioning device, and adjust the support shaft 9 to move the support plate 10 up and down to the same height as the glass bracket 6, thereby The cutter head can be placed flat on the glass bracket 6, and the rear projection LED light source 12 is illuminated. The lighting device can be adjusted in real time by the parameters of the CMOS camera. The initial setting is at gain 50Hz, and the shutter speed is 200ms. If the external environment is too dark, only You need to increase the gain until you can see the image clearly. When the length of the small scalpel is in the range of 0-2mm, the microscopic lens is selected, and when the length of the large scalpel is in the range of 2-50mm, the telecentric lens is selected; the height of the CMOS camera from the upper...

Embodiment 2

[0025] Embodiment 2: Detect the angle value of surgical scissors:

[0026] Because some of the scissors are elbows, it is necessary to put the scissors side on the support plate 10, add cuboid baffles on both sides of the scissors to tighten, put the scissors head on the glass bracket 6, move the bushing 19, adjust the support shaft 9, Move the support plate 10 in three directions of X-Y-Z to a position at the same height as the glass bracket 6 and at a suitable angle, that is, turn on the computer to collect images, and other operations are the same as in Embodiment 1. The computer controls the CMOS camera to collect images, displays them on the computer screen, and then clicks the angle measurement button on the screen to obtain and display the angle value of the tip of the scissors, which is compared with the set angle value and the allowable error by the computer , to get the pros and cons of the product quality, press the save button and it will be saved in the test resul...

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Abstract

The invention discloses a surgical instrument detector, which comprises a device base, a surgical instrument locator, an adjuster, an illuminating apparatus, an image collector and a computer; the surgical instrument locator is as follows: a flat is fixed on the device base, a vertical plate is vertically connected with the flat, the vertical plate is provided with a glass bracket, and a reinforced rib plate is connected between the flat and the vertical plate; the illuminating apparatus is characterized in that: a back projection LED light source is arranged on the device base below the glassbracket; a positive light source is connected with the annular lampshade of the bracket of the light source; the image collector uses a CMOS camera; and the computer and the CMOS camera are connectedby a serial bus interface universal to USB 2.0; the lens of the camera, the positive light source, the back projection LED light source and a detected object on the bracket are arranged on the same vertical line. The image of the detected object is transmitted to the computer by the CMOS camera to conduct image processing and detection, judge, display and store the result. The surgical instrumentdetector has the advantages of quick detection speed and accurate result.

Description

technical field [0001] The invention relates to a device for detecting geometric dimensions of surgical instruments, in particular to a special detection device for surgical instruments suitable for detecting the length and angle of tweezers, scissors and forceps. Background technique [0002] The quality inspection of surgical instruments can accurately detect the defects in the processing of surgical instruments, improve the qualified rate of surgical instruments, and thus provide product quality assurance for the mass production of surgical instruments. At present, domestic surgical instrument manufacturers mainly use human eyes to observe, which is laborious and time-consuming, with large errors, and cannot guarantee the high-precision quality and detection effect of the products. Unqualified products flow into the market, and in serious cases, it may even cause trouble to the operation and cause physical injury to the patient. The existing detection methods for surgical...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/02G01B11/26
Inventor 高艳华葛斌王殊轶周颖张敏燕尹勋超韩露谢海明
Owner UNIV OF SHANGHAI FOR SCI & TECH