A 3D printed in vitro assisted biopsy/positioning device and preparation method thereof

Abstract

The invention discloses a 3D-priniting extracorporeal-assisted biopsy / positioning device. The biopsy / positioning device is formed by 3D printing. The 3D-priniting extracorporeal-assisted biopsy / positioning device comprises a central positioning module, in which a needle-feeding hole duct used for feeding a puncture needle is arranged. The surface of the central positioning module is provided with a first clamping slot. The 3D-priniting extracorporeal-assisted biopsy / positioning device further comprises an antenna with one end having a first clamping pin in snap joint with the first clamping slot and with the other end having a second clamping pin, a fixing foot stand comprising a base and support feet arranged on the base. The support feet and a plane where the base is located are arranged at certain angle. One end, away from the base, of the support feet is provided with a second clamping slot. The second clamping slot is in snap joint with the second clamping pin. The 3D-priniting extracorporeal-assisted biopsy / positioning device is broad in application scope, short in operation time and helps relive pains of a patient and achieves prices positioning and puncture biopsy of preoperative lumps.

Description

technical field [0001] The invention relates to a positioning device for a pulmonary mass in laparoscopic surgery, in particular to a 3D printed in vitro auxiliary biopsy / positioning device and a preparation method thereof. Background technique [0002] In clinical work, clinical problems that require the use of needle biopsy techniques or preoperative positioning techniques are often encountered. Needle biopsy can clarify the histological type of the lesion, determine the pathological diagnosis, and guide clinical treatment. The preoperative positioning technique of the mass is very important to determine the scope of resection during operation. [0003] The above clinical issues include lung tumor biopsy and preoperative localization, thyroid biopsy, breast biopsy, and liver biopsy lesions. [0004] The existing technologies of preoperative positioning and needle biopsy will be introduced respectively as follows: [0005] 1. Preoperative positioning: Taking lung tumors ...

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Problems solved by technology

[0007] However, the existing preoperative positioning technology has the following problems: 1. The mass cannot be touched by hand during the operation: confirming the position of the mass by touching during the operation is theoretically the most direct and accurate method, but in many cases Due to various reasons such as the texture of the lung mass is tough, the volume of the mass is too small, the position of the mass is deep, and the doctor is inexperienced, etc., the manual palpation may not be palpable or the touch is inaccurate, so that the lung mass cannot be completely removed; 2. Radiation radiation Influence: Preoperative CT is guided by hook-wire positioning needle or micro-coil microcoil for puncture positioning. It is necessary to undergo multiple CTs in a short period of time to determine the positioning position and cause radiation impact on patients; 3. Staffing and cost: Preoperative CT is guided by hook-wire positioning needle or micro-coil microcoil for puncture positioning, requiring at least two experienced medical staff to operate

[0009] However, the existing needle biopsy technology has the following problems: 1. The needle biopsy of peripheral lung lesions is performed through the intercostal space, and the movable range of the probe and puncture needle is limited. Pneumothorax, bleeding and other complications; 2. When the lesion has no blood flow or less blood flow, the injection of contrast medium is not suitable for patients with liver and kidney insufficiency; 3. Staffing and cost. In order to improve the success rate of surgery, and the learning curve of medical personnel training is gentle, inexperienced doctors will cause dissatisfaction of patients when performing puncture, which will increase the mental burden of patients

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