Feedback Smart Injector

A syringe and feedback technology, applied in the field of feedback smart syringes, can solve the problems of undocumented blood vessel scanner structure and specific workflow, inaccurate targeted drug delivery, limited clinical use value, etc., so as to reduce medical risks. , the injection or extraction process is accurate, and the effect of improving the efficiency of treatment

Active Publication Date: 2020-09-29
WUHAN ZKKL OPTOELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Secondly, when many doctors inject fillers into the human body every year, the surrounding tissues are rapidly necrotic after embolism caused by the injection of the fillers into the blood vessels, resulting in major medical accidents that cannot be scientifically avoided, and sometimes targeted drug delivery cannot be accurate If it is in place, the treatment effect will be discounted. Feedback syringe technology can make up for such defects, providing intelligent eyes for injection and extraction of doctors around the world, and precise tools for patient lesion treatment
Chinese patent document CN205163829U records a fully automatic injection device that automatically scans blood vessels, and scans three-dimensional images of blood vessels in human body parts through a set blood vessel scanner, but the structure and specific workflow of the blood vessel scanner are not described in detail in this document
Chinese patent document CN101564294A describes a method of electrical impedance tomography with structural information fusion, and provides a technical solution based on electrode detection of internal tissue electrical impedance to obtain human tissue imaging, but the structure and application of the solution Complicated, limiting clinical value

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as Figure 1~7 Among them, a feedback type smart injector includes a needle 3 and a needle base 1, the needle 3 is provided with a first electrode 5 and a second electrode 6 for detecting the impedance of human tissue, the first electrode 5 and the second electrode 6 are connected with the main control The device 2 is electrically connected, and the main control device 2 is electrically connected with the display or reminding device. With this structure, the first electrode 5 and the second electrode 6 are connected with electric signals through the main control device 2, so as to determine the specific position of the needle tip in the human tissue according to the impedance.

[0038] After testing, the DC resistivity (Ω•m) of human tissue is as follows:

[0039] Cerebrospinal fluid 0.555; serum 0.714; blood 1.85; nerve 25.0; liver 80.0; muscle 90.0; brain 107; fat 10.8×10 2 ;wet skin 38.0×10 2 ;dry skin 40.0×10 3 ; without membranous bone 20×10 5 .

[0040]...

Embodiment 2

[0054] On the basis of Example 1, the preferred scheme is as Figure 4 Among them, a third electrode 7 is also provided at the position of the needle base 1, the third electrode 7 is electrically connected to the main control device 2 through a micro-signal amplifying circuit, the third electrode 7 is rotatably connected to the needle base 1, and the third electrode 7 One of the first electrode 5 and the second electrode 6 constitutes a variable frequency impedance detection circuit. With the third electrode 7 as the center of the circle, turn the direction of the needle head 3, and the third electrode 7 and the first electrode 5 or the second electrode 6 on the needle head 3 are all in reliable contact with the skin. An alternating current is given between one of the two electrodes 6, and the positions of the muscles and blood vessels are judged according to the impedance detection, and then during the puncture process, a direct current is connected between the first electrod...

Embodiment 3

[0061] On the basis of Example 2, such as Figure 7 , taking arterial blood collection as an example. When in use, the array electrode 8 is attached to the skin 10 of the patient, and the third electrode 7 and the first electrode 5 are also in reliable contact with the skin. The main control system of the main control device 2 sends out instructions, and the reference signal source sends out an alternating current, preferably, the first electrode 5 sends out an alternating current with a frequency of 100 Hz to 50 kHz. With the third electrode 7 or the needle holder 1 as the center of the circle, the needle 3 is rotated along the skin surface, and during the rotation, the reliable contact between the first electrode 5 and the skin is ensured. According to impedance detection, the position of muscles and blood vessels is judged through images. After the target position is determined, during the puncture process, the circuit is switched, and direct current is connected between ...

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Abstract

The invention provides a feedback type intelligent injector, which includes a needle head and a needle seat. The needle head is provided with a first electrode and a second electrode for detecting the impedance of human tissue, and the first electrode and the second electrode are electrically connected with a main control device. The device is electrically connected with the display or reminding device. By adopting the above structure, the impedance of tissues and organs such as skin, muscle, effusion, and blood can be accurately measured, providing a basis for intelligent injection and extraction settings. During the injection process, avoid misplacement, embolism and other injuries, and accurately administer the drug; or perform precise monitoring during the liposuction process to avoid damage caused by wrong pumping; or conduct accurate scans during the extraction of tumor effusion and cerebrospinal fluid Prediction and precise positioning reduce medical risks and greatly improve doctor treatment efficiency.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a feedback type intelligent injector. Background technique [0002] Existing syringes rely on manual judgment of injection and suction positions during use, which relies on long-term training for medical staff, and it is difficult for even skilled medical staff to ensure that the needle can be positioned at the predetermined position every time. first Especially in the operations involving suction, such as arterial blood, tumor hydrops, cerebrospinal fluid, adipose tissue, etc., some also need the help of other auxiliary equipment to complete the work, such as bedside CT machines. Secondly, every year, when many doctors inject fillers into the human body, the surrounding tissues rapidly necrosis after embolism caused by the injection of fillers into the blood vessels, etc., resulting in major medical accidents that cannot be scientifically avoided, and sometimes targeted drug del...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M1/00A61M5/178A61M5/32A61B5/00A61B5/053
CPCA61M1/0023A61M5/178A61M5/32A61M5/3286A61M5/3287A61B5/4887A61B5/0538A61M2230/65A61M1/73A61M5/427A61M5/329A61B5/053
Inventor 燕自保高兴华刘泉殷波
Owner WUHAN ZKKL OPTOELECTRONICS TECH
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