Remaining needle protection device

A protection device and indwelling needle technology, applied in the field of indwelling needles, can solve the problem of not being able to fully grasp whether the indwelling needle is detached from the blood vessel, and achieve high reliability

Pending Publication Date: 2022-08-02
XUANWU HOSPITAL OF CAPITAL UNIV OF MEDICAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is impossible to fully grasp whether the patient's indwelling needle is detached from the blood vessel only through computer vision, and it is necessary to give an early warning when the extravasation of the patient has already occurred

Method used

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  • Remaining needle protection device
  • Remaining needle protection device
  • Remaining needle protection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026]The present invention relates to an indwelling needle protection device, especially when the indwelling catheter 3 and the inner needle 4 are inserted into the blood vessel, it can detect whether the indwelling catheter 3 and the inner needle 4 penetrate into the blood vessel of the patient. The present invention relates to an indwelling needle protection device, which can also judge whether the indwelling catheter 3 falls out of a patient's blood vessel through optical detection when a medical drug is injected into a blood vessel. The indwelling catheter 3 is usually used for external circulation during artificial dialysis, and the method of use is to indwell the needle tip of the indwelling needle in the blood vessel and inject medical drugs into the blood vessel of the patient. However, when the medical staff wants to pierce the indwelling catheter 3 into the blood vessel of the patient, it is difficult to visually determine whether the catheter is firmly positioned in...

Embodiment 2

[0052] This embodiment is a further improvement to Embodiment 1, and repeated content will not be repeated.

[0053] During the indwelling process, the patient may experience the infusion of blood back, resulting in the existence of blood in the first chamber 10, which affects the working environment of the second sensing element 2, and can no longer continuously monitor whether the indwelling catheter 3 still exists. in the patient's blood vessels. Although the valve assembly 13 and the hemostatic valve 12 provided in the present invention can suppress it, it cannot be ruled out that unexpected situations occur, for which the present invention provides the first sensing member 1 . Wherein, the first sensing member 1 includes a color developing segment 17 and a sticking segment. The color developing segment 17 is configured to display a corresponding color based on the pH value of the extravasated drug, and it can optionally include a methyl red indicator for color developmen...

Embodiment 3

[0057] This embodiment is a further improvement of Embodiment 2, and repeated content will not be repeated.

[0058] The indwelling needle protection device of the present invention further comprises an indwelling needle fixing component. The indwelling needle fixation assembly includes a first fixation layer for fixation with the patient and a second fixation layer for protecting the body part in contact with the patient by the first fixation layer. The first fixed layer and the second fixed layer are provided with visual windows for observing the indwelling needle and the medical part of the patient, and the visual windows can be made of transparent soft mesh. The indwelling needle fixing assembly can be used to fix the indwelling needles on the back of the hand, wrist and arm. The material of the breathable dressing can be used to securely fix the indwelling needle for a long time, so that the ventilation is strong, the comfort and satisfaction of the patient are increased...

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PUM

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Abstract

The invention relates to an indwelling needle protection device which is used for detecting whether an indwelling needle is separated from a blood vessel of a patient or not and at least comprises a first induction part and a second induction part. Wherein the first induction piece is attached to the skin of a patient and is provided with a receiving assembly used for inducting an optical signal emitted by the second induction piece. The second sensing piece is arranged at the tail of the indwelling needle and used for generating an optical signal and irradiating a channel formed by the portion, away from the far end of the patient, of the indwelling catheter to the blood vessel of the patient. The optical signal generates absorption peak change in the process of passing through the channel, and the control unit determines whether the indwelling catheter is separated from the blood vessel of the patient or not based on the waveform height change of the absorption peak of the optical signal. The first sensing piece and the second sensing piece are arranged, and whether the catheter is in the blood vessel or not is detected by detecting medicine exosmosis and optically detecting whether the catheter of the remaining needle is in the blood vessel or not when the catheter of the remaining needle is inserted into the body of a patient, so that whether the remaining needle is in the blood vessel of the patient or not at the tip of the remaining needle is easily and reliably obtained when medical medicine enters the blood vessel of the patient.

Description

technical field [0001] The invention relates to the technical field of indwelling needles, and in particular, to an indwelling needle protection device. Background technique [0002] At present, the use of indwelling needles can reduce the pain and fear of injections caused by repeated venipuncture, reduce the patient's anxiety, facilitate clinical medication, rescue medication for emergency and critically ill patients, reduce the workload of nurses, and reduce the number of patients. pain. Therefore, indwelling needles are widely used in clinical practice. Indwelling catheters are generally used for external circulation during artificial dialysis by indwelling the needle tip of an indwelling needle in a blood vessel and injecting medical drugs into the patient's blood vessel. However, when the medical staff wants to pierce the indwelling catheter into the blood vessel of the patient, it is difficult to visually determine whether the catheter is firmly positioned in the bl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/158
CPCA61M5/158A61M2005/1586A61M2005/1588A61M2205/18A61M2205/3327
Inventor 张帅
Owner XUANWU HOSPITAL OF CAPITAL UNIV OF MEDICAL SCI
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