A preoperative sensor for identifying arteriovenous sources of vascular tinnitus

By designing a preoperative sensor that includes a panel host and multiple sensors, the problem of difficulty in determining the arterial and venous origin of vascular tinnitus was solved, enabling simple detection and accurate diagnosis, and improving the effectiveness of surgery.

CN122140242APending Publication Date: 2026-06-05EYE & ENT HOSPITAL SHANGHAI MEDICAL SCHOOL FUDAN UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
EYE & ENT HOSPITAL SHANGHAI MEDICAL SCHOOL FUDAN UNIV
Filing Date
2026-04-10
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

The lack of suitable equipment in clinical practice for preoperative determination of the arterial and venous origin of vascular tinnitus affects surgical outcomes.

Method used

A preoperative sensor was designed, comprising a panel host, wires, handle, connecting tube, sound sensor, and internal carotid artery pulsation sensor. By collecting the arterial pulsation sound inside the ear canal and the internal carotid artery pulsation frequency curve, combined with a position sensor and display screen, the arterial and venous sources of vascular tinnitus can be determined.

Benefits of technology

It provides a simple and effective detection method that can accurately identify the arterial and venous sources of vascular tinnitus, guide surgical treatment, and improve the success rate of surgery.

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Abstract

The application relates to a preoperative sensor for identifying arteriovenous sources of vascular tinnitus, belonging to the technical field of medical devices, which comprises a panel host, a first wire, a handle, a connecting pipe, a sound sensor, an internal carotid artery pulsation sensor and a second wire; one side of the panel host is provided with a sound sensor connecting port and a pulsation sensor connecting port; the sound sensor connecting port is connected with the handle through the first wire; the handle is connected with the connecting pipe at the other end; the sound sensor is installed at the end of the connecting pipe; the sound sensor comprises a one-way centralized sound collecting device and a position sensor; the pulsation sensor connecting port is connected with two internal carotid artery pulsation sensors through the second wire. The sensor is simple to operate and convenient to use, and provides a new detection method for arteriovenous sources of vascular tinnitus.
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Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a preoperative sensor for identifying the arterial and venous origin of vascular tinnitus. Background Technology

[0002] Vascular tinnitus, also known as pulsatile tinnitus, is characterized by the patient hearing the pulsating sound of blood flowing in their arteries, synchronized with their heartbeat. It is usually unilateral, and the tinnitus disappears or significantly lessens when the ipsilateral carotid artery is pressed. Lying on one's side can also reduce tinnitus (which side to lie on varies from person to person).

[0003] One of the main causes of vascular tinnitus is damage to the bone wall of the blood vessels behind the ear (sigmoid sinus bone wall defect); clinical treatment involves surgery to repair the defect in the sigmoid sinus bone wall.

[0004] Currently, there is no suitable testing equipment in clinical practice for determining the arterial and venous origin of vascular tinnitus before surgery, which can affect the progress of the surgery.

[0005] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Summary of the Invention

[0006] The purpose of this invention is to provide a preoperative sensor for identifying the arteriovenous origin of vascular tinnitus. This sensor is simple to operate and easy to use, providing a new detection method for detecting the arteriovenous origin of vascular tinnitus before surgery.

[0007] This invention provides a preoperative sensor for identifying the arterial and venous origin of vascular tinnitus, comprising a panel main unit, a first lead wire, a handle, a connecting tube, a sound sensor, an internal carotid artery pulsation sensor, and a second lead wire; one side of the panel main unit is provided with a sound sensor connection port and a pulsation sensor connection port, the sound sensor connection port being connected to the handle via the first lead wire, the connecting tube being connected to the other end of the handle, and the sound sensor being installed at the end of the connecting tube, the sound sensor comprising a unidirectional focused sound receiving device and a position sensor; the pulsation sensor connection port being connected to two of the internal carotid artery pulsation sensors via the second lead wire.

[0008] Furthermore, the internal carotid artery pulsation sensor includes a patch and a pressure sensor. The pressure sensor is connected to the middle of the patch and is connected to the second wire. The other end of the second wire is connected to a pulsation sensor plug, which is inserted into the pulsation sensor connection port.

[0009] Furthermore, a pulsation button is also installed on the connecting tube.

[0010] Furthermore, a display screen is provided in front of the panel host, adjustment buttons are provided below the display screen, and a loudspeaker is provided at the rear of the panel host.

[0011] Furthermore, the sound adjustment knob is installed on the side of the panel host away from the sound sensor connection port.

[0012] Furthermore, the preoperative sensor for identifying the arteriovenous source of vascular tinnitus also includes a waterproof cover film, which is fitted over the sound sensor.

[0013] Furthermore, the unidirectional centralized sound receiving device includes a microphone, an electret microphone head, a signal amplification circuit, a data processing module, and a data transmission module. The microphone is provided with a unidirectional air conduction sound receiving hole, and the electret microphone head is provided with a bone conduction electret diaphragm. The microphone, the electret microphone head, and the signal amplification circuit are connected, the signal amplification circuit is connected to the data processing module, and the data processing module is connected to the data transmission module.

[0014] Furthermore, the panel host is internally equipped with a processor, a data receiving module, and a data storage module; both the data receiving module and the data storage module are connected to the processor.

[0015] Furthermore, the connecting pipe is a universal joint.

[0016] This invention provides a preoperative sensor for identifying the arterial and venous origin of vascular tinnitus. A unidirectional centralized sound receiving device collects the sound of arterial pulsation within the ear canal and transmits the sound intensity (decibels), frequency, and interval to a control panel for display. A position sensor detects the specific location of the unidirectional centralized sound receiving device and the tinnitus location, transmitting the vascular tinnitus sound and location information to the control panel for display. Simultaneously, a carotid artery pulsation sensor senses the internal carotid artery pulsation frequency curve (diastole and systole) and transmits the pulsation frequency curve to the control panel for display. By observing the sound of arterial pulsation within the ear canal and comparing it with the frequency curve, the device indicates that the vascular tinnitus originates from a vein when the sound occurs during arterial diastole and from an arterial systole when the sound occurs during arterial systole. This invention is simple to operate and convenient to use, providing a new detection method for preoperative arterial and venous origin detection of vascular tinnitus. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a preoperative sensor for identifying the arterial and venous origin of vascular tinnitus, provided in an embodiment of the present invention.

[0018] Figure 2 for Figure 1 A schematic diagram of the panel host of the preoperative sensor used to identify the arterial and venous origin of vascular tinnitus.

[0019] Figure 3 for Figure 1 Another structural schematic diagram of the panel host of the preoperative sensor used to identify the arterial and venous origin of vascular tinnitus.

[0020] Figure 4 for Figure 1 A schematic diagram of the sound sensor used in a preoperative sensor for identifying the arterial and venous origin of vascular tinnitus.

[0021] Figure 5 for Figure 1 A schematic diagram of the internal carotid artery pulsation sensor, a preoperative sensor used to identify the arterial and venous origin of vascular tinnitus.

[0022] Figure 6 for Figure 1 A schematic diagram of the structure of the waterproof cover of a preoperative sensor used to identify the arterial and venous origin of vascular tinnitus.

[0023] Figure 7 for Figure 1 A schematic diagram of the waterproof cover and sound sensor of a preoperative sensor used to identify the arterial and venous origin of vascular tinnitus.

[0024] Figure 8 for Figure 1 A schematic diagram of the sound sensor module used in the preoperative sensor for identifying the arterial and venous origin of vascular tinnitus.

[0025] The reference numerals and components involved in the accompanying drawings are shown below:

[0026] 1. Panel host;

[0027] 11. Display screen; 12. Adjustment button; 13. Megaphone; 14. Sound sensor connection port; 15. Processor; 16. Data receiving module; 17. Data storage module; 18. Volume adjustment knob; 19. Pulse sensor connection port;

[0028] 2. First conductor;

[0029] 21. Sound sensor plug;

[0030] 3. Handle;

[0031] 31. Pulse button;

[0032] 4. Connecting pipe;

[0033] 5. Sound sensor;

[0034] 51. One-way centralized sound receiving device; 511. Microphone; 512. Electret microphone head; 513. Signal amplification circuit; 514. Data processing module; 515. Data transmission module; 516. One-way air conduction sound receiving hole; 517. Bone conduction electret diaphragm; 52. Position sensor;

[0035] 6. Internal carotid artery pulsation sensor;

[0036] 61. Patch; 62. Pressure sensor;

[0037] 7. Second conductor;

[0038] 71. Pulse sensor plug;

[0039] 8. Waterproof cover membrane; Detailed Implementation

[0040] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0041] The terms "first," "second," "third," "fourth," etc., used in the specification and claims of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0042] Example 1

[0043] Figure 1 This is a schematic diagram of the preoperative sensor for identifying the arteriovenous origin of vascular tinnitus, provided in an embodiment of the present invention. Figure 2 for Figure 1 A schematic diagram of the panel host of the preoperative sensor used to identify the arterial and venous origin of vascular tinnitus. Figure 3 for Figure 1 Another structural schematic diagram of the panel host of the preoperative sensor used to identify the arterial and venous origin of vascular tinnitus. Figure 4 for Figure 1 A schematic diagram of the sound sensor used in a preoperative sensor for identifying the arterial and venous origin of vascular tinnitus. Figure 5 for Figure 1 A schematic diagram of the internal carotid artery pulsation sensor used in preoperative sensors to identify the arterial and venous origin of vascular tinnitus. Please refer to... Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5The preoperative sensor for identifying the arterial and venous origin of vascular tinnitus provided in this embodiment of the invention includes a panel host 1, a first lead wire 2, a handle 3, a connecting tube 4, a sound sensor 5, an internal carotid artery pulsation sensor 6, and a second lead wire 7. One side of the panel host 1 is provided with a sound sensor connection port 14 and a pulsation sensor connection port 19. The sound sensor connection port 14 is connected to the handle 3 through the first lead wire 2. The connecting tube 4 is connected to the other end of the handle 3. The sound sensor 5 is installed at the end of the connecting tube 4. The sound sensor 5 includes a unidirectional concentrated sound receiving device 51 and a position sensor 52. The pulsation sensor connection port 19 is connected to two internal carotid artery pulsation sensors 6 through the second lead wire 7.

[0044] It should be noted that the one-way centralized sound receiving device 51 is used to collect the sound of arterial pulsation inside the ear canal and transmit the sound intensity (decibels), sound frequency, and sound interval to the panel host 1 for display. The position sensor 52 is used to detect the specific position of the one-way centralized sound receiving device 51 and the tinnitus location, and transmit the vascular tinnitus sound and location information to the panel host 1 for display. At the same time, the internal carotid artery pulsation sensor 6 is used to sense the diastolic and systolic frequency curve of the internal carotid artery and transmit the pulsation frequency curve to the panel host 1 for display. By observing the sound of arterial pulsation inside the ear canal and the comparison of the frequency curve of arterial pulsation through the panel host 1, if the sound occurs during arterial diastolic phase, it indicates that the vascular tinnitus is of venous origin; if the sound occurs during arterial systolic phase, it indicates that the vascular tinnitus is of arterial origin.

[0045] This invention is simple to operate and easy to use, and provides a new detection method for the venous origin of vascular tinnitus.

[0046] Further reference Figure 5 The internal carotid artery pulsation sensor 6 of the present invention includes a patch 61 and a pressure sensor 62. The pressure sensor 62 is connected to the middle of the patch 61. The pressure sensor 62 is connected to the second wire 7. The other end of the second wire 7 is connected to a pulsation sensor plug 71. The pulsation sensor plug 71 is inserted into the pulsation sensor connection port 19.

[0047] It should be noted that the pressure sensor 62 detects the pressure wave or vibration of the internal carotid artery, converts it into an electrical signal, and then transmits it to the panel host 1. After being processed by electronic circuitry, the pulsating waveform or frequency is finally displayed on the panel host 1.

[0048] Further reference Figure 4 The present invention also includes a pulsation button 31 installed on the handle 3.

[0049] It should be noted that when the sound sensor 5 does not record any sound, the patient can rely on the sound they hear to press the pulsation button 41 accordingly; for example, press the pulsation button 41 when the rhythmic pulsation sound is the loudest, and check whether the pulsation is aligned or misaligned with the pulsation sensing of the internal carotid artery pulsation sensor 6 when pressing; if they are aligned, it means that the vascular tinnitus originates from the artery, and if they are misaligned, it means that the vascular tinnitus originates from the vein.

[0050] Further reference Figure 2 , Figure 3 The present invention provides a display screen 11 on the front of the panel host 1, an adjustment button 12 below the display screen 11, and a loudspeaker 13 on the rear of the panel host 1; a sound adjustment knob 18 is installed on the side of the panel host 1 away from the sound sensor connection port 14, and a sound sensor plug 21 is provided at one end of the first wire 2, which is inserted into the sound sensor connection port 14.

[0051] Figure 6 for Figure 1 A schematic diagram of the waterproof cover membrane of a preoperative sensor used to identify the arterial and venous origin of vascular tinnitus. Figure 7 for Figure 1 A schematic diagram of the waterproof cover and sound sensor of a preoperative sensor used to identify the arterial and venous origin of vascular tinnitus. Figure 8 for Figure 1 A schematic diagram of the sound sensor module used in the preoperative sensor for identifying the arterial and venous origin of vascular tinnitus. Please refer to... Figure 6 , Figure 7 , Figure 8 The preoperative sensor for identifying the arteriovenous source of vascular tinnitus of the present invention also includes a waterproof cover 8, which is sleeved on the sound sensor 5.

[0052] Furthermore, the unidirectional centralized sound receiving device 51 includes a microphone 511, an electret microphone head 512, a signal amplification circuit 513, a data processing module 514, and a data transmission module 515. The microphone 511 is provided with a unidirectional air conduction sound receiving hole 516, and the electret microphone head 512 is provided with a bone conduction electret diaphragm 517. The microphone 511, the electret microphone head 512, and the signal amplification circuit 513 are connected, the signal amplification circuit 513 is connected to the data processing module 514, and the data processing module 514 is connected to the data transmission module 515.

[0053] The panel host 1 of the present invention is internally equipped with a processor 15, a data receiving module 16 and a data storage module 17; the data receiving module 16 and the data storage module 17 are both connected to the processor 15.

[0054] It should be noted that when the sound sensor 5 is located in the ear canal, the sound leaked from the defective part of the sigmoid sinus bone wall will be received by the microphone 511 through the one-way air conduction sound receiving hole 516, then amplified by the signal amplification circuit 513, processed by the data processing module 514, and finally transmitted to the data receiving module 16 on the processor 15 through the data transmission module 515 for reception and display through the panel host 1.

[0055] When the sound sensor 5 is attached to the defect site of the sigmoid sinus bone wall, the bone conduction electret diaphragm 517 vibrates, causing a change in the electric field across the capacitor in the internal circuit of the electret microphone 512, thereby generating an alternating voltage that changes with the sound wave. The vibration causes a change in capacitance, which in turn generates a changing electrical signal. The signal is amplified by the signal amplification circuit 513, processed by the data processing module 514, and finally transmitted to the data receiving module 16 on the processor 15 via the data transmission module 515. The panel host 1 then displays the sound intensity in decibels, sound frequency, and sound interval. The position sensor 52 can detect the location of sound leakage at the defect site of the sigmoid sinus bone wall and transmit the location information to the processor 15, where the panel host 1 displays the specific location.

[0056] The preoperative sensor provided by this invention for identifying the arterial and venous origin of vascular tinnitus can be used to confirm whether there is blood flow sound at the location of bone wall defects, and at the same time, it can find out whether there are any defects in the remaining sigmoid sinus bone walls. Then, after the sigmoid sinus bone wall defects are repaired by surgery, it can be used to check whether there are any remaining defects in the sigmoid sinus bone walls, and whether the tinnitus has completely disappeared.

[0057] Furthermore, the connecting pipe 4 of the present invention is a universal joint.

[0058] As can be seen from the above description, the advantages of this invention are:

[0059] This invention provides a preoperative sensor for identifying the arterial and venous origin of vascular tinnitus. A unidirectional centralized sound receiving device collects the sound of arterial pulsation within the ear canal and transmits the sound intensity (decibels), frequency, and interval to the main panel for display. A position sensor detects the specific location of the unidirectional centralized sound receiving device and the tinnitus location, transmitting the vascular tinnitus sound and location information to the main panel for display. Simultaneously, a carotid artery pulsation sensor senses the internal carotid artery pulsation frequency curve (diastole and systole) and transmits the pulsation frequency curve to the main panel for display. By observing the sound of arterial pulsation within the ear canal and comparing it with the arterial pulsation frequency curve on the main panel, if the sound occurs during arterial diastole, it indicates that the vascular tinnitus originates from a vein; if the sound occurs during arterial systole, it indicates that the vascular tinnitus originates from an artery. This invention is simple to operate, convenient to use, and provides a new detection method for the venous origin of vascular tinnitus.

[0060] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A preoperative sensor for identifying the arteriovenous origin of vascular tinnitus, characterized in that: Includes a panel host (1), a first lead wire (2), a handle (3), a connecting tube (4), a sound sensor (5), an internal carotid artery pulsation sensor (6), and a second lead wire (7). The panel host (1) is provided with a sound sensor connection port (14) and a pulsation sensor connection port (19) on one side. The sound sensor connection port (14) is connected to the handle (3) through the first wire (2). The other end of the handle (3) is connected to the connecting tube (4). The sound sensor (5) is installed at the end of the connecting tube (4). The sound sensor (5) includes a one-way centralized sound receiving device (51) and a position sensor (52). The pulsation sensor connector (19) is connected to two internal carotid artery pulsation sensors (6) via the second wire (7).

2. The preoperative sensor for identifying the arteriovenous origin of vascular tinnitus according to claim 1, characterized in that: The internal carotid artery pulsation sensor (6) includes a patch (61) and a pressure sensor (62). The pressure sensor (62) is connected to the middle of the patch (61). The pressure sensor (62) is connected to the second wire (7). The other end of the second wire (7) is connected to a pulsation sensor plug (71). The pulsation sensor plug (71) is inserted into the pulsation sensor connector (19).

3. The preoperative sensor for identifying the arteriovenous origin of vascular tinnitus according to claim 1, characterized in that: A pulsation button (31) is also installed on the handle (3).

4. The preoperative sensor for identifying the arteriovenous origin of vascular tinnitus according to claim 1, characterized in that: A display screen (11) is provided in front of the panel host (1), an adjustment button (12) is provided below the display screen (11), and a loudspeaker (13) is provided behind the panel host (1).

5. The preoperative sensor for identifying the arteriovenous origin of vascular tinnitus according to claim 1, characterized in that: The sound adjustment knob (18) is installed on the side of the panel host (1) away from the sound sensor connection port (14), and one end of the first wire (2) is provided with a sound sensor plug (21), which is inserted into the sound sensor connection port (14).

6. The preoperative sensor for identifying the arteriovenous origin of vascular tinnitus according to claim 1, characterized in that: The preoperative sensor for identifying the arteriovenous source of vascular tinnitus also includes a waterproof cover (8) which is fitted over the sound sensor (5).

7. The preoperative sensor for identifying the arteriovenous origin of vascular tinnitus according to claim 1, characterized in that: The one-way centralized sound receiving device (51) includes a microphone (511), an electret microphone head (512), a signal amplification circuit (513), a data processing module (514), and a data transmission module (515). The microphone (511) is provided with a one-way air conduction sound receiving hole (516), and the electret microphone head (512) is provided with a bone conduction electret diaphragm (517). The microphone (511), the electret microphone head (512), and the signal amplification circuit (513) are connected. The signal amplification circuit (513) is connected to the data processing module (514), and the data processing module (514) is connected to the data transmission module (515).

8. The preoperative sensor for identifying the arteriovenous origin of vascular tinnitus according to claim 6, characterized in that: The panel host (1) is equipped with a processor (15), a data receiving module (16) and a data storage module (17); the data receiving module (16) and the data storage module (17) are both connected to the processor (15).

9. The preoperative sensor for identifying the arteriovenous origin of vascular tinnitus according to claim 1, characterized in that: The connecting pipe (4) is a universal joint.