CN-121987239-A - Portable intelligent stethoscope for arteriovenous internal fistula for hemodialysis

CN121987239ACN 121987239 ACN121987239 ACN 121987239ACN-121987239-A

Abstract

The invention discloses a portable intelligent stethoscope for arteriovenous fistula for hemodialysis, and relates to the technical field of medical equipment. The auscultation instrument comprises an auscultation instrument host, wherein an alarm, auscultation result indicating lamps with three different colors, an equipment switch and an electric quantity indicating lamp are arranged on the auscultation instrument host, an equipment power supply, a control module, a wireless data transmission module and an AI (analog to digital) noise identification chip are arranged in the auscultation instrument host, an auscultation head and a conduction pipe are arranged on the outer side of the auscultation instrument host, and an auxiliary fixing mechanism is arranged on the auscultation head. The auscultation head is built-in to fall and make an uproar the accurate filtration interference of acoustic filter screen, and the weak blood flow sound of signal amplification module at the end of the conducting tube is enlargied, cooperates the AI murmur identification chip of the clinical murmur frequency spectrum of input in advance, need not to rely on professional auscultation experience and can discern the internal fistula murmur state voluntarily, through three-colour auscultation result pilot lamp visual feedback, cooperation alarm linkage early warning, clinical screening can be accomplished fast to ordinary medical care, and the patient also can be independently at home from the investigation, thoroughly rule leakage-proof judgement, misjudgement risk.

Inventors

CHEN JING
LIU LINGLING
JIE YANQING
DAI BING
LI YANGYANG
LI LIN
ZHU YING
ZHANG MEI

Assignees

中国人民解放军海军军医大学

Dates

Publication Date: 20260508
Application Date: 20260407

Claims (6)

1. The portable intelligent stethoscope for the arteriovenous internal fistula comprises a stethoscope host (1) and is characterized in that an alarm (10), auscultation result indicating lamps (3) with three different colors, a device switch (4) and an electric quantity indicating lamp (11) are arranged on the stethoscope host (1), a device power supply, a control module, a wireless data transmission module and an AI noise identification chip are arranged in the stethoscope host (1), an auscultation head (7) and a conducting tube (5) are arranged on the outer side of the stethoscope host (1), a connecting pipe (9) is connected to the auscultation head (7), one end, far away from the auscultation head (7), of the connecting pipe (9) is inserted into the inner side, far away from one end of the stethoscope host (1), of the conducting tube (5) is connected with a signal amplification module (6), and the output end of the signal amplification module (6) is connected with the input end of the AI noise identification chip, and a noise reduction filter screen (8) is arranged in the auscultation head (7).
2. The portable intelligent stethoscope for arteriovenous internal fistula for hemodialysis according to claim 1, wherein the stethoscope head (7) is made of stainless steel, the surface of the stethoscope head (7) is subjected to condensation prevention treatment, and an internal fistula noise frequency spectrum common in clinic is pre-recorded in the AI noise identification chip.
3. The portable intelligent stethoscope for arteriovenous internal fistula for hemodialysis according to claim 1, wherein the stethoscope head (7) is provided with an auxiliary fixing mechanism, the auxiliary fixing mechanism comprises a limiting belt (16), the limiting belt (16) is made of rubber materials, a through hole (19) is formed in the limiting belt (16), the stethoscope head (7) is located inside the through hole (19), two binding belts (18) and one binding belt (17) are fixedly connected to the front end and the rear end of the limiting belt (16) respectively, and the two binding belts (18) and the one binding belt (17) are matched through magic tape.
4. The portable intelligent stethoscope for arteriovenous internal fistula for hemodialysis according to claim 1, wherein a preheating mechanism is arranged at the rear side of the stethoscope main body (1), the preheating mechanism comprises a limiting outer cylinder (12) fixed at the rear side end of the stethoscope main body (1), a heating groove (13) is formed in the inner wall of the front side of the limiting outer cylinder (12), a flexible heating sheet (14) is arranged at the bottom of the heating groove (13), and a limiting ring (15) is fixedly connected to the inner side wall of the limiting outer cylinder (12).
5. The portable intelligent stethoscope for arteriovenous internal fistula for hemodialysis according to claim 4, wherein the limiting ring (15) is made of rubber material, and the inner diameter size of the limiting ring (15) is slightly smaller than the outer diameter size of the stethoscope head (7) at one end of the sound pick-up surface.
6. The portable intelligent stethoscope for arteriovenous internal fistula for hemodialysis according to claim 1, wherein the conduction tube (5) is a silica gel hose, an anti-slip bulge is arranged on the outer side wall of the connecting tube (9), and a hanging rope (2) is arranged on the stethoscope host (1).

Description

Portable intelligent stethoscope for arteriovenous internal fistula for hemodialysis Technical Field The invention relates to the technical field of medical equipment, in particular to a portable intelligent stethoscope for arteriovenous internal fistula for hemodialysis. Background Hemodialysis is a core treatment means for maintaining life of an end-stage renal patient, blood purification is needed to be achieved through extracorporeal circulation, an arteriovenous internal fistula is used as a 'life line' of the hemodialysis patient, and is a clinically preferred long-term dialysis passage, superficial arteries and veins of the patient limb are anastomosed through surgical operation, so that the veins are arterialized to form a high-flow vascular passage, sufficient and stable blood flow is provided for dialysis treatment, smoothness of the internal fistula directly determines whether the dialysis treatment can be successfully carried out, and the key of guaranteeing the life quality of the patient is further provided. In clinic, the arterial and venous internal fistula is prone to channel failure due to the problems of vascular stenosis, thrombosis, vasospasm and the like, the blood flow state needs to be monitored regularly, auscultation detection of blood flow murmurs is a core means for judging the patency of the internal fistula, normal internal fistula can present even and continuous blowing-like murmurs, and the murmurs are abnormal to directly prompt that the internal fistula has pathological change risks, so that timely and accurate auscultation monitoring is crucial to maintaining the functions of the internal fistula. At present, auscultation monitoring of arteriovenous internal fistula is finished in clinical and household scenes, most of the auscultation monitoring is finished by medical staff with abundant clinical experience, the medical staff needs to pick up blood flow noise of the internal fistula through a professional stethoscope, and the channel state is judged by combining the tone, loudness and rhythm of the noise. Meanwhile, hemodialysis patients need to independently monitor the internal fistula state in home for a long time, the patients do not have professional auscultation knowledge and skill, auscultation operation cannot be independently completed, hidden troubles such as internal fistula stenosis and thrombus are difficult to discover in early stage in the home period, access failure is often discovered when dialysis is needed, and optimal intervention time is missed. Therefore, the scheme of the application provides a portable intelligent stethoscope for arteriovenous internal fistula for hemodialysis, which is used for solving the problems. Disclosure of Invention The invention aims to provide a portable intelligent stethoscope for arteriovenous fistula for hemodialysis, which solves the technical problems in the background technology. The portable intelligent stethoscope for arteriovenous fistula for hemodialysis comprises a stethoscope main machine, wherein an alarm, three auscultation result indicating lamps with different colors, a device switch and an electric quantity indicating lamp are arranged on the stethoscope main machine, a device power supply, a control module, a wireless data transmission module and an AI noise identification chip are arranged in the stethoscope main machine, an auscultation head and a conducting tube are arranged on the outer side of the stethoscope main machine, a connecting tube is connected to the auscultation head, one end of the connecting tube, which is far away from the auscultation head, is inserted into the inner side of the conducting tube, which is far away from one end of the stethoscope main machine, the conducting tube, one end, which is far away from the connecting tube, is connected with a signal amplification module, the output end of the signal amplification module is connected with the input end of the AI noise identification chip, and a noise reduction acoustic filter screen is arranged in the auscultation head. Preferably, the stethoscope head is made of stainless steel, the surface of the stethoscope head is subjected to condensation prevention treatment, and an internal fistula noise frequency spectrum common in clinic is pre-recorded in the AI noise identification chip. Preferably, the auscultation head is provided with an auxiliary fixing mechanism, the auxiliary fixing mechanism comprises a limiting belt, the limiting belt is made of rubber materials, a through hole is formed in the limiting belt, the auscultation head is located at the inner side of the through hole, the front end and the rear end of the limiting belt are respectively and fixedly connected with a binding belt II and a binding belt I, and the binding belt II and the binding belt I are matched through a magic tape. Preferably, the stethoscope main unit rear side is provided with preheating mechanism, preheating mechanism is including fixing the spa