Intelligent instrument for measuring tissue thickness

Abstract

The invention relates to an intelligent instrument for measuring the tissue thickness. The intelligent instrument comprises a button cell type intelligent thickness measuring clip or an external power supply type intelligent thickness measuring clip, a linear incision anastomat or a manual thickness measuring instrument or an automatic thickness measuring instrument, and a staple anvil. The button cell type intelligent thickness measuring clip comprises an outer shell, a pressing key, waterproof soft glass, an integrated circuit board and a bottom cover. The waterproof soft glass is arranged between the pressing key and the integrated circuit board and covers the surface of the pressing key. A button cell, a power module, a display module, a tissue pressure intensity measuring module, a tissue thickness measuring module, a control module and a wireless transmission module are mounted on the back face of the integrated circuit board. An eddy-current transducer and a pressure sensor are mounted on the front face of the integrated circuit board. The button cell type intelligent thickness measuring clip is matched with a wireless transmission device. The intelligent instrument for measuring the tissue thickness has the advantages that the tissue thickness can be measured in a quantitative mode, tissue thickness measurement is accurate, corresponding anastomotic staple cartridges can be selected conveniently, and the success rate of anastomotic surgery is increased.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to an intelligent instrument for measuring tissue thickness. Background technique [0002] Stapler is a medical device widely used in surgical operations. It pulls the tissues at both ends of the anastomosis together, provides mechanical healing, and creates conditions for later tissue healing. Compared with the traditional manual anastomosis, the stapler has the following advantages: small blood vessels can pass through the gap of the staple without affecting the blood supply of the suture site and its distal end; The tissue reaction is small; the staples are neatly arranged and the spacing is equal, which ensures good tissue healing; the mechanical anastomosis changes the open suture into a closed suture, reducing the pollution caused during the reconstruction of the biological cavity. The use of staplers needs to follow certain norms in order to achieve the expected ...

AI Technical Summary

Problems solved by technology

The problems here are as follows: First, it is impossible for doctors to distinguish the difference of 0.1 mm order of magnitude with the naked eye in the surgical environment; Define its thickness during surgery? Therefore, there is a need for a medical device that can provide doctors with objective tissue thickness data to assist doctors in selecting the correct staples and successfully completing the anastomosis

According to the structural description, the strain gauge for measuring thickness is placed at the proximal end of the strain gauge for measuring tissue load. The two are far apart, and the tissue thickness and pressure measurement are actually not in the same position; at the same time, according to the lever is far away, the instrument anvil is close The displacement at the end is smaller than the displacement at the far end. Therefore, this method actually reduces the displacement and then measures it, which reduces the resolution. Finally, the output linearity and resolution of the strain gauge itself are low, so it is more suitable for qualitative measurement. , rather than quantitative measurement, does not clarify the resolution of tissue thickness measurement in this embodiment

The second embodiment mainly achieves the purpose of measuring tissue thickness under a specific pressure through the design of the mechanical structure. The pressure design is realized by preset springs or strain gauges. The tissue thickness measurement directly converts the displacement of the measuring rod into Tissue thickness is displayed through the reading plate, limited by its structural principle, the resolution of thickness measurement can only reach 1mm, which cannot provide sufficient data accuracy support for doctors

However, there is no report on this smart device

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