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Pulmonary nodule in-vivo measurement assistant positioning device and positioning method

An auxiliary positioning and internal measurement technology, applied in computer-aided planning/modeling, medical science, surgery, etc., can solve problems such as prolonging operation time, increasing puncture-related pain and complication rate, and achieving the effect of ensuring accuracy

Inactive Publication Date: 2019-06-21
SHANGHAI PULMONARY HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is room for improvement in CT-guided percutaneous localization: During the operation of CT-guided percutaneous pulmonary nodule localization, clinicians need to plan and estimate the location, angle, and depth of the positioning needle in real time, and observe through CT scan images. Locate the positional relationship between the needle and the lesion, and adjust the direction of the needle repeatedly until the proper direction of the needle is determined
This undoubtedly increases the patient's puncture-related pain and the incidence of complications during the operation, prolongs the operation time, and also makes the patient receive additional radiation doses.

Method used

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  • Pulmonary nodule in-vivo measurement assistant positioning device and positioning method
  • Pulmonary nodule in-vivo measurement assistant positioning device and positioning method
  • Pulmonary nodule in-vivo measurement assistant positioning device and positioning method

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Embodiment 1

[0045] Such as figure 1 and figure 2 As shown, this embodiment provides an auxiliary positioning device for pulmonary nodule measurement in vivo, including: an external fixation element 10; a joint-like element 30 with bending properties, the proximal end of the joint-like element 30 is arranged outside the body On the fixed element 10; a mounting base 40 arranged on the far end of the joint-like element 30; a laser measuring element 50 in the body which is movably installed on the top of the mounting base 40, and a laser measuring element 50 is arranged in the laser measuring element 50 Gravity sensor and several laser emitting units, several of said laser emitting units are used to measure the distance from said preset needle point to the upper and lower sides of chest cavity and the front and rear chest walls; The distal end of the scale 60 is provided with a marking element 70 . The auxiliary positioning device for in vivo measurement of pulmonary nodules can replace th...

Embodiment 2

[0055] An embodiment of the present invention provides an auxiliary positioning method for in vivo measurement of pulmonary nodules based on the above-mentioned auxiliary positioning device for pulmonary nodule measurement in vivo, comprising the steps of:

[0056] (1) Perform preoperative Hookwire positioning;

[0057] (2) Preoperative preparation, patient anesthesia, body position preparation, disinfection, thoracoscopic incision;

[0058] (3) The auxiliary positioning device for in vivo measurement of pulmonary nodules is fixed on the edge of the bed through an external fixation element, and the in vivo laser measurement element at the distal end of the joint-like element is inserted into the chest cavity of the patient simultaneously with the thoracoscope;

[0059] (4) Combined with thoracoscopy, preset needle points on the chest wall, so that the probe is close to the needle point; here, the needle point refers to the needle point for preoperative positioning. After recei...

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Abstract

The invention discloses a pulmonary nodule in-vivo measurement assistant positioning device and positioning method. The positioning device comprises an in-vitro fixing element, a joint-like element with a blending performance, a mounting base, an in-vivo laser measuring element and a scale, the near end of the joint-like element is arranged on the in-vitro fixing element, the mounting base is arranged at the far end of the joint-like element, the in-vivo laser measuring element is movably arranged at the top end of the mounting base, a gravity sensor and a plurality of laser emitting units arearranged in the in-vivo laser measuring element, the laser emitting units are used for measuring distances among needle inlet points and upper, lower, left and right walls of a chest, the scale is arranged at the bottom end of the mounting base, and a marking element is arranged at far end of the scale. By the in-vivo measurement assistant positioning method of the positioning device, CT (computed tomography) checking after preoperative positioning operation can be replaced, the method judges whether preoperative positioning is accurate in operation or not, additional radiation dosage of a patient is avoided, and positioning accuracy is ensured.

Description

technical field [0001] The invention relates to a medical auxiliary device, in particular to an auxiliary positioning device and a positioning method for measuring a pulmonary nodule in vivo. Background technique [0002] With the widespread promotion and application of low-dose spiral CT in the field of lung cancer screening, there are more and more patients with small pulmonary nodules clinically. Due to the small size of such small pulmonary nodules (<2cm), and a considerable part of the specific gravity nodules are pure ground-glass-like (GGO) nodules; resulting in the inability to locate the target lesion in minimally invasive thoracoscopic surgery (VATS), it is Important reasons for conversion to open thoracotomy, unplanned lobectomy, or anatomic segmentectomy. [0003] In order to solve this dilemma, a variety of preoperative positioning methods have been invented in recent years to assist intraoperative positioning of target lesions; among them, CT-guided percuta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/34A61B34/10A61B90/00
Inventor 孙维言陈昶张磊汪洋佘云浪邓家骏
Owner SHANGHAI PULMONARY HOSPITAL