False falling prevention safety device for ultrasonic probe

Abstract

The invention relates to the technical field of medical equipment, and discloses an anti-falling safety device for an ultrasonic probe, which comprises a grip shell, a protection assembly is arranged in the grip shell, the protection assembly comprises a pop-up airbag and a gas generator, and the protection assembly is connected with a sensor module. The sensor module controls the working state of the protection assembly through the control unit. The grip shell is made of a flexible material, a locking device is arranged in the grip shell, the locking device is tightly attached to the inner surface of the grip shell, when pressure is applied to the outer surface of the grip shell, the locking device is opened, and when the locking device is opened, the locking device is closed. An electric signal between the sensor module and the protection assembly is cut off; the anti-falling protection device can be actively started when the ultrasonic probe falls off, and the problem that the ultrasonic probe is prone to damage when falling off or colliding is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, in particular to a safety device for preventing an ultrasonic probe from accidentally falling. Background Art

[0002] Ultrasound probes are core components of medical ultrasound imaging equipment and are widely used in clinical diagnosis and treatment. Due to their high precision and sensitivity, ultrasound probes are expensive to manufacture and are susceptible to damage from accidental drops or collisions during use. Existing ultrasound probes typically rely on simple hangers or protective covers for storage and protection, but these measures are limited in preventing the probes from accidentally falling.

[0003] In the actual use of ultrasound probes, traditional hangers or protective covers can only provide basic fixing and dustproof functions, and cannot provide effective cushioning and protection when the probe accidentally falls. In addition, there is no anti-accidental drop safety device in the existing technology that can actively protect the ultrasound probe when it falls. Summary of the Invention

[0004] (1) Technical problems solved: In response to the shortcomings of the existing technology, the present invention provides an anti-accidental drop safety device for an ultrasound probe, which has the advantage of being able to actively activate the anti-accidental drop protection device when the ultrasound probe falls, thereby solving the problem that the ultrasound probe is easily damaged when it falls or collides.

[0005] (2) Technical Solution: To achieve the above-mentioned purpose of having an anti-accidental drop protection device that can actively activate when the ultrasound probe falls, the present invention provides the following technical solution: an anti-accidental drop safety device for an ultrasound probe, adapted for medical ultrasound equipment, sleeved and mounted on the outer surface of the ultrasound probe, comprising a grip shell, a pop-up protection component disposed inside the grip shell, the protection component comprising a pop-up airbag and a gas generator, the pop-up airbag and the gas generator being connected; the protection component being connected to a sensor module, the sensor module comprising a rotation angle sensor and an acceleration sensor, the sensor module controlling the working state of the gas generator through a control unit; the grip shell being made of a flexible material, a locking device disposed inside the grip shell, the locking device being in close contact with the inner surface of the grip shell, the locking device being activated when the outer surface of the grip shell at a position corresponding to the locking device is gripped and pressed, and the electrical signal between the sensor module and the protection component is cut off when the locking device is activated.

[0006] Preferably, the handle shell is annular as a whole, the ultrasonic probe is placed in the inner ring of the handle shell, the handle shell can be opened and disassembled, and is fixed to the ultrasonic probe handle through a snap-fit structure.

[0007] Preferably, the acceleration sensor in the sensor module is arranged at one end of the handle housing where the ultrasonic probe is mounted, close to the center of gravity of the device as a whole, and the rotation angle sensor is arranged at one end close to the working part of the ultrasonic probe.

[0008] Preferably, a groove is provided downwardly on the surface of one end of the handle shell facing the ultrasonic probe, and the pop-up airbag is arranged in the groove. When the pop-up airbag is inflated, it expands upward from the groove; the gas generator and the pop-up airbag are sealed together, and when the gas generator is started, the gas generated enters the pop-up airbag.

[0009] Preferably, when the pop-up airbag is filled with gas, it expands upward into a ring shape as a whole, and the pop-up height exceeds the highest point of the ultrasonic probe; the ultrasonic probe is located in the inner circle of the pop-up airbag; the lower end of the pop-up airbag is fixedly connected to the inside of the handle shell, and the connection is a sealed structure.

[0010] Preferably, the outer surface of the pop-up airbag is provided with a vent hole, the vent hole is a conical vent hole, the opening diameter gradually decreases from the outer surface inward, the vent hole extends toward the interior of the pop-up airbag, and the vent hole is provided with an air valve system at the inner end of the pop-up airbag; the air valve system includes a one-way valve and a solenoid valve, and the air valve system is controlled by a control unit.

[0011] Preferably, the gas generator is specifically a chemical gas generator, which is connected to an electric ignition device. The sensor module controls the electric ignition device to trigger a chemical reaction inside the chemical gas generator. The gas inside the gas generator is connected to the pop-up airbag through an air pipe; the outer surface of the gas generator is provided with a heat insulation component; the gas generator is detachable.

[0012] Preferably, the locking device includes a first spring and a push rod, one end of the first spring is connected to the inner surface of the handle shell, and the other end is connected to the push rod, the first spring and the push rod are both arranged inside the limiting channel, the limiting channel is provided with an electric contact and a power-on block, and the power-on block is provided with a second spring at one end away from the push rod; when the power-on block is connected to the electric contact, the sensor module is energized; when the outer surface of the handle shell is squeezed inward, the push rod separates the power-on block from the electric contact.

[0013] (III) Beneficial effects: Compared with the prior art, the present invention provides an anti-accidental drop safety device for an ultrasound probe, which has the following beneficial effects: 1. The anti-accidental drop safety device for an ultrasound probe provides additional safety protection while not interfering with its daily functional operation by installing an anti-accidental drop safety device on the handle of the ultrasound probe. Once the ultrasound probe is accidentally out of hand or accidentally dropped, the built-in sensor module of the device, which is located near the center of gravity of the probe, can quickly sense a sharp increase in acceleration to a value close to the earth's gravity acceleration of 9.8 meters per second squared, which is approximately a free fall state. At this time, the sensor module immediately triggers the protection component, activates the gas generator inside it, and quickly inflates the pop-up airbag, causing the airbag to expand and deploy in a very short time, and its top point height exceeds the highest point of the ultrasound probe, forming an effective buffer barrier, thereby ensuring that the ultrasound probe is protected from damage during the fall; The drop height of the acoustic probe is generally low, usually 1-2 meters, and the time from falling to touching the ground is about 200-400 milliseconds. In order to ensure that the airbag is fully deployed before the probe touches the ground, the response time of the device should be much less than the time it takes for the probe to fall and touch the ground. Ideally, it should be controlled within 50 milliseconds. It usually takes 5-10 milliseconds for the sensor module to detect the drop signal of the probe, and it usually takes 5-10 milliseconds for the control unit to process the sensor data and determine whether the protection component needs to be triggered. Therefore, we use a chemical gas generator to obtain a faster response speed. Usually, a chemical gas generator can complete gas generation within 10-15 milliseconds. It usually takes 10-20 milliseconds for the gas to fill the airbag and fully deploy, so the total time is 30-60 milliseconds. The expansion time of the elastic airbag can be changed according to the solidity of the material. Therefore, after design and calculation, the present invention can achieve a rapid response within 50 milliseconds.

[0014] 2. This ultrasound probe's drop prevention device utilizes a flexible handle housing and a locking mechanism attached to its inner surface. Pressure applied by the user to the handle is converted into a driving force from the first spring in the locking mechanism on the push rod, causing it to move along a pre-set limit path. This movement displaces the electrical contacts, which were previously in close contact with the power block, thereby disconnecting the power supply to the sensor module. This effectively prevents medical personnel from manipulating the probe, such as swinging their arms or performing a sliding inspection, from erroneously triggering the sensor module's drop detection due to excessive movement, thus avoiding unnecessary deployment of the drop prevention device. Furthermore, if the ultrasound probe falls from the medical personnel's hand, the grip on the handle housing is immediately lost, and the electrical contacts automatically reset under the force of the second spring, reconnecting to the power block. This restores power to the sensor module and immediately enters monitoring mode, ready to detect if the ultrasound probe has been dropped. This design ensures that the ultrasound probe can be quickly and effectively protected in unexpected situations, improving the safety and reliability of medical equipment.

[0015] 3. The anti-accidental-drop safety device for the ultrasonic probe is provided with a vent hole on the outer surface of the pop-up airbag, and an air valve system is provided inside the vent hole. When the safety device has been triggered, the airbag pops out and completely wraps the ultrasonic probe, the user can control the air valve system to open the vent hole on the outer surface of the pop-up airbag, discharge the gas inside the pop-up airbag, and restore the airbag to its initial state, ensuring that the ultrasonic probe can continue to be used without hindrance; at the same time, since the gas generator in the safety device adopts a chemical gas generator, which is disposable and non-reusable, the user can realize multiple uses of the safety device by replacing the gas generator inside the grip shell, greatly improving the practicality and economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the present invention when it is installed on the handle of the ultrasound probe.

[0017] Figure 2 This is a schematic diagram of the pop-up airbag of the present invention being inflated on the ultrasound probe handle.

[0018] Figure 3 This is a schematic diagram of the internal cross-sectional structure of the handle shell of the present invention.

[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the locking device of the present invention when it is closed.

[0020] Figure 5 This is a schematic diagram of the cross-sectional structure of the locking device of the present invention when it is opened.

[0021] Figure 6 This is a schematic diagram of the installation position of the sensor module of the present invention.

[0022] Figure 7 This is a schematic diagram of the structure of the air release holes on the outer surface of the pop-up airbag of the present invention.

[0023] Figure 8 It is a partial structural diagram of the gas generator of the present invention.

[0024] In the figure: 1. Grip shell; 11. Snap-fit structure; 2. Protective component; 21. Pop-up airbag; 211. Air vent; 212. Valve system; 22. Gas generator; 221. Ignition device; 222. Heat insulation component; 3. Sensor module; 31. Rotation angle sensor; 32. Acceleration sensor; 4. Locking device; 41. First spring; 42. Push rod; 43. Limiting channel; 44. Electric contact; 45. Power block; 46. Second spring; 5. Ultrasonic probe. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-5 , a safety device for preventing an ultrasonic probe from accidentally falling, adapted for medical ultrasonic equipment, is sleeved and installed on the outer surface of the ultrasonic probe 5, specifically on the outer surface of the handle of the ultrasonic probe 5 in this embodiment, to prevent it from affecting the normal use of the working part of the ultrasonic probe 5, the safety device includes a handle shell 1, the handle shell 1 is made of a flexible material, in this embodiment, the same polyamide fabric or nylon material as the automobile airbag is used, a protective component 2 is provided inside the handle shell 1, the protective component 2 is connected to a sensor module 3, the sensor module 3 includes a rotation angle sensor 31 and an acceleration sensor 32, which can detect the acceleration and rotation angle of the current installation position and analyze the data. When the acceleration is close to the gravity, it indicates that the device is in free fall, that is, falling to the ground. ; The sensor module 3 controls the working state of the protection component 2 through the control unit. When it is determined that the device is in a falling state, a signal is immediately sent to the protection component 2 to make the protection component 2 react. A locking device 4 is provided inside the grip shell 1. The locking device 4 is close to the inner surface of the grip shell 1. When pressure is applied to the outer surface of the grip shell 1, the locking device 4 is opened. Therefore, the sensor module 3 can be turned on or off by judging whether the grip is being used at this time. When the locking device 4 is opened, the electrical signal between the sensor module 3 and the protection component 2 is cut off, which effectively prevents medical staff from mistakenly triggering the accidental fall judgment of the sensor module 3 due to excessive movement when operating the probe, such as swinging the arm or performing a sliding inspection, thereby avoiding unnecessary accidental pop-up of the anti-accidental fall safety device.

[0027] The drop height of an ultrasound probe is generally low, typically 1-2 meters. The time from drop to impact is approximately 200-400 milliseconds. To ensure that the airbag fully deploys before the probe hits the ground, the device's response time should be much shorter than the probe's impact time, ideally within 50 milliseconds. The sensor module typically detects the probe drop signal in 5-10 milliseconds, and the control unit processes the sensor data and determines whether to trigger the protection component, which typically takes another 5-10 milliseconds. Therefore, we use a chemical gas generator to achieve a faster response speed. Chemical gas generators can typically complete gas generation within 10-15 milliseconds. The gas fills the airbag and fully deploys, typically taking 10-20 milliseconds, for a total time of 30-60 milliseconds. The expansion time of the elastic airbag can vary depending on the material. Therefore, after design and calculation, the present invention can achieve a rapid response of less than 50 milliseconds. In this embodiment, the chemical gas generator uses sodium azide. Under the heating action of the ignition device, sodium azide can rapidly generate a large amount of nitrogen gas within tens of milliseconds. Nitrogen is non-toxic and harmless, and highly safe.

[0028] See also Figure 1 and Figure 2 The grip shell 1 is annular as a whole, similar to the shape of the probe grip itself, so as to minimize the impact on the doctor's feel. The ultrasonic probe 5 is placed in the inner circle of the grip shell 1. Since the grip shell 1 is made of a flexible material, the grip shell 1 can be opened and disassembled, and is fixed on the grip of the ultrasonic probe 5 through the snap-fit structure 11, which is convenient for installation and disassembly; in this embodiment, the snap-fit structure 11 specifically adopts the cooperation of the snap-fit block and the snap-fit hole. In actual use, any structure that can fix the grip shell 1 on the grip of the ultrasonic probe 5 can be regarded as an equivalent replacement for the snap-fit structure 11.

[0029] See also Figure 6 The acceleration sensor 32 in the sensor module 3 is arranged at one end of the ultrasonic probe 5 mounting handle shell 1 close to the overall center of gravity of the device, which can more accurately detect the current acceleration of the device as a whole; the rotation angle sensor 31 is arranged at one end close to the working part of the ultrasonic probe 5, which can more accurately detect the current angle of the working end of the ultrasonic probe 5, focusing on avoiding damage to the working end.

[0030] See also Figure 1 and Figure 2A groove is downwardly opened on the surface of one end of the handle shell 1 facing the ultrasonic probe 5, and the groove is used to store the pop-up airbag 21, and limits the expansion trajectory and shape of the pop-up airbag 21 under the premise of providing the pop-up airbag 21 with expansion space; the protection component 2 includes a pop-up airbag 21 and a gas generator 22, and the pop-up airbag 21 is arranged in the groove. When the pop-up airbag 21 is inflated, it expands upward along the wall of the groove; the gas generator 22 and the pop-up airbag 21 are sealed to prevent the pop-up airbag 21 from leaking. When the gas generator 22 is started, the gas generated enters the pop-up airbag 21, causing the pop-up airbag 21 to expand rapidly, thereby cushioning the ultrasonic probe 5 that is about to fall to the ground.

[0031] See also Figure 2 When the pop-up airbag 21 is filled with gas, it expands upward into a ring shape as a whole, and the pop-up height exceeds the highest point of the ultrasonic probe 5, forming an effective buffer barrier, thereby ensuring that the ultrasonic probe 5 is protected from damage during the fall; the ultrasonic probe 5 is located in the inner circle of the pop-up airbag 21; the lower end of the pop-up airbag 21 is fixedly connected to the inside of the handle shell 1, so that when its upper end expands and pops out, its lower end is also fixed inside the handle shell 1, and the connection is a sealed structure to avoid affecting the protective effect.

[0032] In this example, see Figure 7 The outer surface of the pop-up airbag 21 is provided with a vent hole 211. The vent hole 211 is a conical air hole, and the opening diameter gradually decreases from the outer surface inward to optimize the gas flow efficiency. The vent hole 211 extends into the interior of the pop-up airbag 21. The vent hole 211 is provided with an air valve system 212 at the inner end of the pop-up airbag 21; the air valve system 212 includes a one-way valve and a solenoid valve. The one-way valve is used to prevent gas backflow, and the solenoid valve is used to control the opening and closing of the vent hole 211. The air valve system 212 is controlled by the control unit; when the safety device has been triggered, the airbag pops out and completely wraps the ultrasonic probe 5, the user can control the air valve system 212 to open the vent hole 211 on the outer surface of the pop-up airbag 21, discharge the gas inside the pop-up airbag 21, and restore the airbag to its initial state, ensuring that the ultrasonic probe 5 can continue to be used without hindrance.

[0033] In this example, see Figure 8The gas generator 22 is specifically a chemical gas generator 22. The chemical gas generator 22 generates a large amount of gas in a very short time, usually 20-50 milliseconds, through a chemical reaction such as the decomposition of sodium azide, to ensure that the airbag is fully deployed before the probe touches the ground. The chemical gas generator 22 has a compact structure and occupies a small space, and is suitable for integration into the grip shell 1; the chemical gas generator 22 is connected to an electric ignition device 221. When the sensor module 3 transmits the opening model to the gas generator 22, the electric ignition device 221 triggers a chemical reaction inside the chemical gas generator 22, and the gas inside the gas generator 22 is connected to the pop-up airbag 21 through the air pipe; the outer surface of the gas generator 22 is provided with a heat insulation component 222 to prevent high temperature from damaging the probe; at the same time, since the gas generator 22 in the safety device adopts a chemical gas generator 22, it is disposable and cannot be reused. Therefore, the user can realize multiple uses of the safety device by replacing the gas generator 22 inside the grip shell 1, which greatly improves the practicality and economy.

[0034] In this example, see Figure 4 and Figure 5 The locking device 4 includes a first spring 41 and a push rod 42. One end of the first spring 41 is connected to the inner surface of the grip shell 1, and the other end is connected to the push rod 42. The first spring 41 and the push rod 42 are both arranged inside the limiting channel 43. This limiting channel 43 is installed inside the grip shell 1, and is provided with an electric contact 44 and a power block 45. The pressure applied by the user to the grip will be converted into a driving force of the first spring 41 on the push rod 42 in the locking mechanism, so that the push rod 42 is pushed to move along the preset limiting channel 43. This action will cause the electric contact 44 head that was originally in close contact with the power block 45 to be displaced, thereby cutting off the power to the sensor module 3. The source is effectively prevented by medical staff from mistakenly triggering the accidental drop judgment of the sensor module 3 due to excessive movement when operating the probe, such as swinging the arm or performing a sliding inspection, thereby avoiding unnecessary accidental pop-up of the anti-accidental drop safety device; at the same time, a second spring 46 is provided at the end of the power block 45 away from the push rod 42. Once the ultrasound probe 5 falls off from the medical staff's hand, the gripping force on the grip shell 1 disappears immediately. At this time, the electric contact 44 head will automatically reset under the elastic force of the second spring 46, and re-establish connection with the power block 45, so that the sensor module 3 resumes power supply and immediately enters the monitoring state, ready to detect whether the ultrasound probe 5 falls at any time.

[0035] Continue reading Figure 4-Figure 5 Combining the first spring 41 with the push rod 42 can, to a certain extent, mitigate the sudden impact on the electric contact 44 and avoid damage to the electric contact 44. In actual use, the first spring 41 and the push rod 42 can be equivalently replaced by any mechanism that can push the electric contact 44.

[0036] Working principle: When the safety device is in use, the grip shell 1 is first covered on the outer surface of the grip of the ultrasonic probe 5 through the snap-fit structure 11, and then the user uses the ultrasonic probe 5 normally through the grip. At this time, the locking structure of the safety device is opened and the safety device is in the closed state; when an unexpected situation occurs, such as: the grip falls out of hand or the ultrasonic probe 5 is accidentally discarded, the pressure applied to the grip shell 1 disappears, the locking device 4 returns to its original position, and the safety device is activated. At this time, the sensor module 3 will detect the rotation angle and acceleration of the ultrasonic probe 5. When the acceleration approaches the earth's gravity acceleration of 9.8 meters per second squared, or the rotation angle is large, the safety device is activated, and the airbag 21 pops out and inflates to wrap the ultrasonic probe 5 inside to ensure that the ultrasonic probe 5 is not damaged.

[0037] To sum up, the protection function of the safety device for preventing the ultrasonic probe from accidentally falling is triggered only when the two conditions of "the ultrasonic probe 5 has acceleration and rotation angle" and "there is no pressure on the outer surface of the handle" are met at the same time, thereby avoiding accidental deployment of the airbag during normal use and ensuring that the airbag can be deployed in time when the probe falls; the sensor module 3 monitors the movement state of the probe in real time, and combines the gas generator 22 and the pop-up airbag 21 to provide active protection, quickly deploy the airbag when the probe falls, effectively buffer the impact force, and prevent damage to the probe; the locking device 4 cuts off the signal between the sensor module 3 and the protection component 2 when the outer surface of the handle is under pressure, thereby preventing accidental deployment of the airbag due to misoperation during normal use, thereby improving the safety of the device.

[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0039] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A safety device for preventing an ultrasonic probe from accidentally falling, adapted for use with medical ultrasonic equipment, and sleeved and mounted on the outer surface of the ultrasonic probe (5), comprising a handle housing (1), characterized in that: The handle shell (1) is provided with a pop-up protection component (2) inside, the protection component (2) includes a pop-up airbag (21) and a gas generator (22), and the pop-up airbag (21) and the gas generator (22) are connected; the protection component (2) is connected to a sensor module (3), the sensor module (3) includes a rotation angle sensor (31) and an acceleration sensor (32), and the sensor module (3) controls the working state of the gas generator (22) through a control unit; the handle shell (1) is made of a flexible material, and the handle shell (1) is provided with a locking device (4) inside, the locking device (4) is in close contact with the inner surface of the handle shell (1), when the outer surface of the handle shell (1) at the corresponding position of the locking device (4) is gripped and pressed, the locking device (4) is opened, and when the locking device (4) is opened, the electrical signal between the sensor module (3) and the protection component (2) is cut off.

2. The anti-accidental drop safety device for an ultrasound probe according to claim 1, characterized in that: The handle shell (1) is annular in shape as a whole, and the ultrasonic probe (5) is placed in the inner ring of the handle shell (1). The handle shell (1) can be opened and closed and disassembled, and is fixed to the handle of the ultrasonic probe (5) through a clamping structure (11).

3. The safety device for preventing an ultrasonic probe from accidentally falling according to claim 1, characterized in that: The acceleration sensor (32) in the sensor module (3) is arranged at one end of the ultrasonic probe (5) where the handle housing (1) is mounted, close to the center of gravity of the device as a whole, and the rotation angle sensor (31) is arranged at one end close to the working part of the ultrasonic probe (5).

4. The safety device for preventing an ultrasonic probe from accidentally falling according to claim 1, characterized in that: A groove is provided downwardly on one end surface of the handle shell (1) facing the ultrasonic probe (5), and the pop-up airbag (21) is arranged in the groove. When the pop-up airbag (21) is inflated, it expands upward from the groove; the gas generator (22) and the pop-up airbag (21) are sealed. When the gas generator (22) is started, the gas generated enters the pop-up airbag (21).

5. The safety device for preventing an ultrasonic probe from accidentally falling according to claim 4, characterized in that: When the pop-up airbag (21) is filled with gas, it expands upward into a ring shape, and the pop-up height exceeds the highest point of the ultrasonic probe (5); the ultrasonic probe (5) is located in the inner circle of the pop-up airbag (21); the lower end of the pop-up airbag (21) is fixedly connected to the inside of the handle shell (1), and the connection is a sealed structure.

6. The safety device for preventing an ultrasonic probe from accidentally falling according to any one of claims 4 to 5, characterized in that: The outer surface of the pop-up airbag (21) is provided with a deflation hole (211), the deflation hole (211) is a tapered hole, the opening diameter of which gradually decreases from the outer surface inward, the deflation hole (211) extends into the interior of the pop-up airbag (21), and the deflation hole (211) is provided with an air valve system (212) at the inner end of the pop-up airbag (21); the air valve system (212) includes a one-way valve and a solenoid valve, and the air valve system (212) is controlled by a control unit.

7. The safety device for preventing an ultrasonic probe from accidentally falling according to any one of claims 4-5, characterized in that: The gas generator (22) is specifically a chemical gas generator (22) connected to an electric ignition device (221); the sensor module (3) controls the electric ignition device (221) to trigger a chemical reaction inside the chemical gas generator (22); the gas inside the gas generator (22) is connected to the pop-up airbag (21) through a gas pipe; the outer surface of the gas generator (22) is provided with a heat insulation component (222); the gas generator (22) is detachable.

8. The safety device for preventing an ultrasonic probe from accidentally falling according to claim 1, characterized in that: The locking device (4) includes a first spring (41) and a push rod (42), one end of the first spring (41) is connected to the inner surface of the handle shell (1), and the other end is connected to the push rod (42), the first spring (41) and the push rod (42) are both arranged inside a limiting channel (43), an electric contact (44) and a power block (45) are arranged inside the limiting channel (43), and a second spring (46) is arranged at one end of the power block (45) away from the push rod (42); when the power block (45) is connected to the electric contact (44), the sensor module (3) is energized; when the outer surface of the handle shell (1) is squeezed inward, the push rod (42) separates the power block (45) from the electric contact (44).

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