Multifunctional internal arteriovenous fistula monitor

Abstract

The utility model relates to a multifunctional internal arteriovenous fistula monitor, which comprises a shell, a first sound pick-up opening and a second sound pick-up opening are respectively arranged on different side surfaces of the shell, and the first sound pick-up opening and the second sound pick-up opening are respectively communicated with the accommodating space; the monitoring module is arranged in the containing space, the monitoring module comprises a first sound pickup part right opposite to the first sound pickup opening and a second sound pickup part right opposite to the second sound pickup opening, and the first sound pickup part and the second sound pickup part can respectively capture sound; and the processing module is arranged in the accommodating space, and the processing module is used for receiving, processing and outputting the sound signals transmitted by the sound pickup part I and the sound pickup part II. Through the arrangement, the monitor is compact in design, small in size, convenient to operate and suitable for daily use.

Description

Technical Field

[0001] The utility model relates to the technical field of medical auxiliary equipment, in particular to a multifunctional arteriovenous fistula monitor. Background Art

[0002] Hemodialysis is a renal replacement therapy for treating patients with chronic renal failure. Before hemodialysis, a vascular access needs to be established in advance. The arteriovenous fistula (AVF) has become a commonly used vascular access option due to its advantages such as good long-term dialysis effect, high patient survival rate, low infection rate, and low thrombosis rate.

[0003] However, the fistula is prone to failure. After failure, a new arteriovenous fistula needs to be re-established at other sites, that is, fistuloplasty is performed again. This kind of surgery is costly and brings a great economic burden to patients. Moreover, the main sites for fistula creation are the limbs, where the vascular resources are limited. As the available blood vessels gradually fail, patients can only choose other vascular accesses with higher risks. Therefore, it is crucial to conduct daily maintenance and status monitoring of the fistula, otherwise the probability of fistula failure will increase. Once the fistula fails, the longer the failure time, the heavier the physical burden on the patient.

[0004] However, the existing internal fistula detection devices are usually wearable, with a large volume and relatively complex operation, which are not convenient for carrying and daily use, and are not conducive to the continuous monitoring and management of the internal fistula. Summary of the Utility Model

[0005] In order to solve the above defects, the utility model proposes a multifunctional arteriovenous fistula monitor.

[0006] The technical solution adopted by the utility model is a multifunctional arteriovenous fistula monitor, including: a housing, which forms an accommodation space inside, and different sides of the housing are respectively provided with a first sound pickup port and a second sound pickup port, and the first sound pickup port and the second sound pickup port are respectively communicated with the accommodation space; a monitoring module, which is arranged in the accommodation space, and the monitoring module includes a first sound pickup component arranged opposite to the first sound pickup port and a second sound pickup component arranged opposite to the second sound pickup port, and the first sound pickup component and the second sound pickup component can respectively capture sounds; a processing module, which is arranged in the accommodation space, and the processing module receives and processes the sound signals transmitted by the first sound pickup component and the second sound pickup component and outputs them.

[0007] Preferably, the processing module includes a differential signal processing component, and the differential signal processing component receives and processes the sound signals transmitted by the first sound pickup component and the second sound pickup component and outputs differential signals.

[0008] Preferably, the processing module further includes at least one of a frequency regulator, a signal amplifier, or a filter.

[0009] Preferably, it further includes a wireless communication module disposed in the accommodation space, and the wireless communication module receives the signal transmitted by the processing module and outputs it to a remote server.

[0010] Preferably, it further includes a heating module disposed in the accommodation space, and the heating module can heat at least one inner side surface of the housing.

[0011] Preferably, the heating module is an electric heating and temperature rising component.

[0012] Preferably, the first sound pickup port is arranged in a horn shape, and the end away from the first sound pickup component has a larger opening.

[0013] Preferably, it further includes a speaker disposed in the housing, the speaker is signal-connected to the processing module, and a plurality of through holes are formed in the housing at a position opposite to the speaker.

[0014] Preferably, a display module signal-connected to the processing module is further arranged on the housing, and the information output by the processing module is displayed on the display module.

[0015] Preferably, it further includes a battery module disposed in the housing, and the battery module is used to supply power to the monitoring module and the processing module.

[0016] Compared with the prior art, the present utility model has the following beneficial effects:

[0017] 1. In the multifunctional arteriovenous fistula monitor of the present utility model, each component is integrated into the housing, with a compact design, small volume, and easy to carry. When in use, only the first sound pickup port needs to be covered on the arteriovenous fistula, which is convenient to operate and suitable for daily use. Thus, patients can perform frequent and continuous monitoring, which helps to detect problems early, carry out preventive management, and improve the treatment effect;

[0018] 2. The multifunctional arteriovenous fistula monitor of the present utility model adopts a design with two sound pickup components, which can effectively reduce environmental noise interference, ensure the clarity and accuracy of sound signals, and improve the reliability of arteriovenous fistula monitoring;

[0019] 3. The heating module can reduce the discomfort caused by cold to patients and improve their comfort. During hemodialysis treatment, holding the multifunctional arteriovenous fistula monitor with the heating module activated can effectively improve the comfort during the treatment process and reduce the discomfort caused by the temperature loss of the arm due to exposure to the air-conditioned environment and the back-transfusion of blood after external treatment. Placing the heat-generating side of the housing close to the patient's fistula can also improve blood circulation around the fistula, increase blood flow, contribute to the patency of the fistula, reduce the probability of fistula obstruction and failure, and is suitable for the daily maintenance of the fistula. Symptoms such as redness and pain around the fistula are often related to inflammation, and warming maintenance can also promote local blood circulation, relieve local inflammation and pain. Warming and maintaining the fistula one day before hemodialysis treatment can improve the dialysis effect of the fistula and relieve the pain and discomfort around the fistula. Description of the Drawings

[0020] The present utility model will be described in detail below in conjunction with the embodiments and the drawings, where:

[0021] Figure 1 is the overall structural schematic diagram of the multifunctional arteriovenous fistula monitor;

[0022] Figure 2 is Figure 1 the structural schematic diagram from another perspective;

[0023] Figure 3 is the exploded view of the multifunctional arteriovenous fistula monitor;

[0024] Figure 4 is the working flow chart of the multifunctional arteriovenous fistula monitor.

[0025] 10. Housing; 11. First sound pickup port; 12. Second sound pickup port; 13. Screen protection case; 14. First button cover; 15. Second button cover; 16. Protection cover;

[0026] 21. First sound pickup component;

[0027] 30. Processing module;

[0028] 40. Heating module;

[0029] 50. Speaker;

[0030] 60. Display module;

[0031] 70. Battery module; 71. Charging port;

[0032] 80. Control circuit; 81. First button; 82. Second button. Detailed Embodiment

[0033] To make the objectives, technical solutions, and advantages of the present utility model clearer, the following will further describe the embodiments of the present utility model in detail with reference to the accompanying drawings. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar components or components with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0034] In one embodiment, as Figures 1-3 shown, a multifunctional arteriovenous fistula monitor includes a housing 10, a monitoring module, and a processing module 30. The housing 10 serves as the external structure of the multifunctional arteriovenous fistula monitor, functioning to protect the internal modules, improve portability, and enhance the structural integrity. An accommodation space is formed inside the housing 10, and a first sound pickup port 11 and a second sound pickup port 12 are respectively provided on different sides of the housing 10. The first sound pickup port 11 and the second sound pickup port 12 are respectively communicated with the accommodation space to ensure that sound can be transmitted into the accommodation space.

[0035] Both the monitoring module and the processing module 30 are arranged in the accommodation space. The monitoring module includes a first sound pickup element 21 and a second sound pickup element. The first sound pickup element 21 is arranged opposite to the first sound pickup port 11, so as to capture the sound signals near the first sound pickup port 11; the second sound pickup element is arranged opposite to the second sound pickup port 12, so as to capture the sound signals near the second sound pickup port 12. The processing module 30 receives and processes the sound signals transmitted by the first sound pickup element 21 and the second sound pickup element, and then the processing module 30 outputs the processed signals. The output mode can be output to a display, headphones, a speaker 50, a computer, or other devices, etc., for medical staff and the like to monitor and analyze the state of the arteriovenous fistula. Specifically, the processing module 30 includes a signal receiver, and the processing module 30 receives and digitizes the sound signals from the first sound pickup element 21 and the second sound pickup element through the signal receiver.

[0036] During use, cover the first sound pickup port 11 on the arteriovenous fistula. The second sound pickup port 12 and the first sound pickup port 11 are provided on different surfaces of the housing 10, that is, the second sound pickup port 12 is arranged away from the arteriovenous fistula. Thus, the first sound pickup element 21 can collect the sound of the arteriovenous fistula and the ambient sound through the first sound pickup port 11, and the second sound pickup element can collect the ambient sound through the second sound pickup port 12. The processing module 30 receives the sound signals collected by the first sound pickup element 21 and the second sound pickup element, then compares the two sound signals, calculates their difference, so as to highlight the sound signal of the arteriovenous fistula and suppress the ambient noise, and finally outputs the sound signal of the arteriovenous fistula after noise reduction, in order to obtain a clear fistula sound signal for diagnosis or analysis.

[0037] In this embodiment, the multi-functional arteriovenous fistula monitor integrates various components into the housing 10, with a compact design, small size, and easy to carry. When in use, only the sound pickup port 11 needs to be covered on the arteriovenous fistula, which is convenient to operate and suitable for daily use. Thus, patients can perform frequent and continuous monitoring, which helps to detect problems early, carry out preventive management, and improve the treatment effect. In addition, the multi-functional arteriovenous fistula monitor in this embodiment adopts a design with two sound pickup components, which can effectively reduce environmental noise interference, ensure the clarity and accuracy of sound signals, and improve the reliability of arteriovenous fistula monitoring.

[0038] In one embodiment, the processing module 30 includes a differential signal processing component. The differential signal processing component compares and processes the sound signals from the first sound pickup component 21 and the second sound pickup component, eliminates common environmental noise, and highlights the sound signal of the arteriovenous fistula. The differential signal processing component may include a synchronization module and a differential calculation unit. The synchronization module can ensure the synchronization of the sound signals from the first sound pickup component 21 and the second sound pickup component in time, avoiding errors caused by time differences. The differential calculation unit is used to calculate the difference between the two synchronized signals, that is, the differential signal.

[0039] In one embodiment, the processing module 30 further includes a frequency regulator, a signal amplifier, or a filter, etc. The frequency regulator can adjust and optimize the frequency response of the signal to meet specific audio analysis requirements. The signal amplifier can amplify the weak sound signals transmitted by the first sound pickup component 21 and the second sound pickup component for subsequent processing. Compared with the method of physically amplifying sound, the signal amplifier can provide more accurate and stable signal amplification. The filter can further filter out the residual noise in the differential signal and enhance the sound signal of the arteriovenous fistula. A low-pass filter, a high-pass filter, or a band-pass filter, etc. can be used.

[0040] In one embodiment, the multi-functional arteriovenous fistula monitor further includes a wireless communication module disposed in the accommodation space. The wireless communication module receives the signal transmitted by the processing module 30 and outputs it to a remote server. The remote server can receive and analyze the transmitted sound signal to judge the state of the arteriovenous fistula. Utilize the powerful computing power of the remote server for complex analysis, improve the accuracy and timeliness of diagnosing the state of the arteriovenous fistula, and support remote medical services. Doctors can remotely monitor and diagnose the patient's condition. The remote server can be a computer, a mobile phone, etc. When the remote server is processing, an operator can intervene at any time to correct the judgment result. Finally, the remote server can also return the result to the processing module 30 of the multi-functional arteriovenous fistula monitor through the wireless communication module, and output the judgment result through the multi-functional arteriovenous fistula monitor.

[0041] In one embodiment, the multifunctional arteriovenous fistula monitor further includes a heating module 40 disposed in the accommodation space. The heating module 40 is disposed close to an inner side surface of the housing 10. Thus, when the heating module 40 operates, it can heat this side surface of the housing 10. When a patient undergoes dialysis treatment, the fistula arm needs to be exposed outside for inserting two needles and for medical staff to observe the treatment situation, but the patient will feel cold. At this time, the patient only needs to hold the multifunctional arteriovenous fistula monitor in this embodiment and then activate the heating module 40, which can reduce the discomfort caused by cold and improve the comfort of the patient.

[0042] In addition, placing the heat-generable side surface of the housing 10 close to the patient's fistula can also improve the blood circulation around the fistula, increase the blood flow rate, contribute to the patency of the fistula, reduce the probability of fistula obstruction and failure, and is applicable to the daily maintenance of the fistula. Symptoms such as redness and pain around the fistula are often related to inflammation, and warming maintenance can also promote local blood circulation, relieve local inflammation and pain. Warming and maintaining the fistula one day before hemodialysis treatment can improve the dialysis effect of the fistula and relieve the pain and discomfort around the fistula.

[0043] In other embodiments, the heating module 40 can also heat multiple side surfaces of the housing 10, or even heat the entire multifunctional arteriovenous fistula monitor, for the convenience of the patient's use.

[0044] In one embodiment, the heating module 40 is an electric heating and temperature-rising component. The electric heating and temperature-rising component can include heating elements such as graphite, graphene, or thermocouples, and is powered by a power supply to generate heat energy to achieve the effect of temperature rise.

[0045] In one embodiment, the first sound pickup port 11 is arranged in a horn shape, and the end of the first sound pickup port 11 away from the first sound pickup member 21 has a larger opening. The horn-shaped structure can effectively gather and guide sound, increase the sound energy, enable the first sound pickup member 21 to receive a stronger arteriovenous fistula sound signal, and improve the sensitivity of the first sound pickup member 21.

[0046] In one embodiment, the multifunctional arteriovenous fistula monitor further includes a speaker 50 disposed in the housing 10. The speaker 50 is signal-connected to the processing module 30. The speaker 50 can output the sound signal processed by the processing module 30 in real time, facilitating medical staff and patients to directly hear the sound of the fistula, and being convenient for immediate monitoring and judgment. A plurality of through holes are formed in the housing 10 at a position opposite to the speaker 50, further optimizing the sound conduction effect.

[0047] In one embodiment, a display module 60 signal - connected to the processing module 30 is further provided on the housing 10, and the information output by the processing module 30 is displayed on the display module 60. The display module 60 displays in real - time the information of the arteriovenous fistula output by the processing module 30, such as sound waveforms, signal intensities, noise levels, diagnostic results, whether abnormal sounds appear in the fistula, etc., and can also display the arteriovenous fistula information returned by the remote server. The display module 60 may include a display screen such as an LCD or an OLED, with clear display and low power consumption. The patient can directly observe the health status of the arteriovenous fistula on the display screen, which is clearer and more convenient for timely detection of abnormalities in the arteriovenous fistula. A screen protection case 13 is provided at a position on the housing 10 opposite to the display screen. The screen protection case 13 is made of transparent glass or plastic, and the screen protection case 13 can reduce the probability of the display screen being scratched or damaged.

[0048] In one embodiment, the multifunctional arteriovenous fistula monitor further includes a battery module 70 disposed inside the housing 10. The battery module 70 is used to supply power to the listening module and the processing module 30, and the battery module 70 can also supply power to the wireless communication module, the heating module 40, the speaker 50, and the display module 60. The patient can carry the multifunctional arteriovenous fistula monitor at any time for mobile monitoring without relying on a power socket, which is convenient for carrying and using. Specifically, the battery module 70 may include a battery module and a housing for accommodating the battery module. The battery module may be a storage battery, which can be charged and discharged multiple times, has a long - cycle service life, reduces the frequency of battery replacement, and saves costs.

[0049] Furthermore, the battery module 70 is electrically connected to a charging port 71, and the user charges the battery module 70 through the charging port 71. An opening is provided at a position on the housing 10 opposite to the charging port 71 and a protective cover 16 is provided, which can prevent dust and liquid from contaminating and damaging the charging port 71. When the user needs to charge, just open the protective cover 16 to charge the battery module 70.

[0050] In one embodiment, the multifunctional arteriovenous fistula monitor further includes a button one 81 and a button two 82 disposed inside the housing 10. The button two 82 can control whether the battery module 70 starts to supply power, that is, control the on - off of the internal circuit of the multifunctional arteriovenous fistula monitor. The button one 81 can control whether the listening module and the processing module 30 start to work to monitor the arteriovenous fistula, or control whether the heating module 40 starts to heat. Openings are respectively provided at positions on the housing 10 opposite to the button one 81 and the button two 82, and a button cover one 14 and a button cover two 15 are provided. The button cover one 14 and the button cover two 15 are respectively sleeved on the button one 81 and the button two 82. On the one hand, it can protect the button one 81 and the button two 82, and on the other hand, it can also facilitate the user to manually operate the two buttons.

[0051] In other embodiments, the multifunctional arteriovenous fistula monitor can set separate buttons for each module, or integrate the control of multiple modules into several buttons. It can also control the operation and cooperation of each module through the touch screen on the display screen.

[0052] In one embodiment, the listening module, the processing module 30, the wireless communication module, the heating module 40, the speaker 50, the display module 60, and the battery module 70 can be integrated onto a control circuit 80 through signal lines for centralized control, reducing the number of internal connection lines inside the housing 10, simplifying the internal structure, enhancing the reliability and stability of the monitor, making the operation more convenient and efficient; the highly integrated design can save internal space of the device, reduce the volume of the device, and make it more portable; it helps to optimize power management and improve the overall energy efficiency and performance of the device. Button 1 81 and Button 2 82 can be set on the control circuit 80.

[0053] Specifically, as Figure 4 shown, the multifunctional arteriovenous fistula monitor picks up sound through the listening module. After the processing module 30 receives the sound signal transmitted by the listening module, it processes the sound signal, such as removing noise, and then on the one hand, it can output to the speaker 50 to directly play the sound of the arteriovenous fistula, and on the other hand, it can upload the sound signal to a remote server through the wireless communication module. The remote server judges the health status of the arteriovenous fistula through the software on it. At this time, manual intervention can be made to correct the judgment of the software. Finally, the remote server returns the judgment result to the processing module 30 of the multifunctional arteriovenous fistula monitor, and then the processing module 30 can transmit the signal to the speaker 50, the display module 60, etc. to output the judgment result.

[0054] In this specification, the pick-up should be understood in a broad sense. It can be a pick-up defined by common general knowledge, or composed of a pick-up defined by common general knowledge and physical amplification components such as a resonance diaphragm.

[0055] In the description of this specification, if terms such as "Embodiment 1", "this embodiment", "in one embodiment", etc. appear, it means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model or the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example; moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in an appropriate manner.

[0056] In the description of this specification, terms such as "connection", "installation", "fixation", "setting", "having", etc. are understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0057] In the description of this specification, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the process, method, article or device including the said element.

[0058] The above description of the embodiments is for the convenience of those of ordinary skill in the art to understand and apply the technology of this case. Obviously, those who are familiar with the technology in this field can easily make various modifications to these examples and apply the general principles described here to other embodiments without creative labor. Therefore, this case is not limited to the above embodiments, and the following several types of modifications should all be within the protection scope of this case: ① A new technical solution implemented based on the technical solution of this utility model and combined with the existing common knowledge, and the technical effect produced by this new technical solution does not exceed the technical effect of this utility model; ② An equivalent replacement of some features of the technical solution of this utility model using well-known technologies, and the technical effect produced is the same as the technical effect of this utility model; ③ Expansion based on the technical solution of this utility model, and the substantial content of the expanded technical solution does not exceed the technical solution of this utility model; ④ An equivalent transformation made using the content of the specification and drawings of this utility model, directly or indirectly applied in other related technical fields.

Claims

1. A multifunctional arteriovenous fistula monitoring instrument, characterized in that: include: A shell body, an accommodating space is formed inside the shell body, and a first sound pickup port and a second sound pickup port are respectively opened on different sides of the shell body, and the first sound pickup port and the second sound pickup port are respectively connected to the accommodating space; A monitoring module is arranged in the accommodating space, and the monitoring module comprises a first sound pickup component arranged opposite to the first sound pickup port, and a second sound pickup component arranged opposite to the second sound pickup port, and the first sound pickup component and the second sound pickup component can capture sound respectively; A processing module is arranged in the accommodating space, and the processing module receives and processes the sound signals transmitted by the first sound pickup component and the second sound pickup component, and outputs the sound signals.

2. The multifunctional arteriovenous fistula monitoring instrument according to claim 1 is characterized in that: The processing module includes a differential signal processing component, which receives and processes the sound signals transmitted by the first sound pickup component and the second sound pickup component and outputs a differential signal.

3. The multifunctional arteriovenous fistula monitoring instrument according to claim 2, characterized in that: The processing module also includes at least one of a frequency regulator, a signal amplifier or a filter.

4. The multifunctional arteriovenous fistula monitoring instrument according to claim 3 is characterized in that: It also includes a wireless communication module arranged in the accommodating space, and the wireless communication module receives the signal transmitted by the processing module and outputs it to a remote server.

5. The multifunctional arteriovenous fistula monitoring instrument according to any one of claims 1 to 4, characterized in that: A heating module is also included which is arranged in the accommodating space and can heat at least one inner side surface of the shell.

6. The multifunctional arteriovenous fistula monitoring instrument according to claim 5, characterized in that: The heating module is an electric heating component.

7. The multifunctional arteriovenous fistula monitoring instrument according to any one of claims 1 to 4, characterized in that: The sound pickup port 1 is configured to be in a trumpet shape, and an end thereof away from the sound pickup component 1 has a larger opening.

8. The multifunctional arteriovenous fistula monitoring instrument according to any one of claims 1 to 4, characterized in that: It also includes a speaker arranged in the shell, the speaker signal is connected to the processing module, and a plurality of through-going air holes are opened on the shell at a position facing the speaker.

9. The multifunctional arteriovenous fistula monitoring instrument according to claim 1, characterized in that: The housing is also provided with a display module connected to the processing module signal, and the information output by the processing module is displayed on the display module.

10. The multifunctional arteriovenous fistula monitoring instrument according to claim 1, characterized in that: It also includes a battery module arranged in the housing, and the battery module is used to supply power to the monitoring module and the processing module.

Images