PICC tube ultrasonic puncture positioning device and positioning system

Abstract

The invention relates to a PICC tube placement ultrasonic puncture positioning device, which includes a positioning body; the positioning body includes a fixing seat connected to the end of an ultrasonic probe and a needle seat arranged on the front side of the fixing seat, and the lower part of the fixing seat is connected to the fixed seat. The lower parts of the needle base are pivotally connected, and the angle can be adjusted around the pivot center through the automatic angle adjustment mechanism; the front side of the needle base is vertically provided with a trocar part, and the trocar part is made of transparent material Tubular structure, the lower end surface of the trocar part is provided with an initial position marking line, the inner wall of the trocar part is provided with a length detection mechanism; the fixed seat is provided with a micro-control device and a power supply device, and the micro-control device is used for It is used to control the running state of the automatic angle adjustment mechanism and the length detection mechanism. The device realizes precise control of the puncture angle and puncture depth of the puncture needle.

Description

technical field [0001] The invention belongs to the field of medical devices, and in particular relates to a PICC catheter placement ultrasonic puncture positioning device and a positioning system using the device. Background technique [0002] PICC (Peripherally Inserted Central Venous Catheters) uses a catheter to puncture from a vein in the peripheral arm. The catheter goes directly to the large vein close to the heart, avoiding direct contact between chemotherapy drugs and arm veins. The blood flow in the vein is fast, which can quickly dilute the chemotherapy drugs and prevent the drugs from stimulating the blood vessels. Therefore, it can effectively protect the veins of the upper limbs, reduce the occurrence of phlebitis, reduce the pain of patients, and improve the quality of life of patients. This technique is less traumatic and expensive for the patient; however, because the puncture needle and the probe are separated, they need to be operated separately. During th...

AI Technical Summary

Problems solved by technology

The structure of the device is simple, but its size often needs to be selected according to different blood vessel depths, and it cannot be flexibly adjusted according to clinical puncture conditions; the puncture depth cannot be automatically monitored during the needle insertion process, and it is easy to puncture the inner wall of the blood vessel, and the angle of the puncture needle cannot be accurate control, the puncture error is very large, resulting in a low success rate, which adds great difficulty to the medical staff

On the other hand, after the puncture needle enters the blood vessel, the guide wire needs to pass through the puncture needle and enter the blood vessel. At this time, the medical staff supports the puncture needle with one hand, and the guide wire can only be operated with one hand; The manual feeding process is more difficult, and it is easy to cause the failure of the guide wire feeding

In addition, when the guide wire is blocked, it is often necessary to withdraw the puncture needle together with the guide wire to prevent the guide wire from being cut and broken in the blood vessel by the needle when withdrawing. This operation is cumbersome and requires a second puncture Puncture needles bring pain to patients

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