High-precision multifunctional pelvic floor muscle pressure measuring system based on optical fiber sensing

Abstract

The invention provides a high-precision multifunctional pelvic floor muscle pressure measuring system based on optical fiber sensing. The high-precision multifunctional pelvic floor muscle pressure measuring system comprises a handle, a probe, a plurality of annular balloons, a plurality of FBG pressure sensing arrays, an air pressure control system, an optical fiber, a tunable laser, an imaging probe and a host. Through self-adaptive adjustment of the multiple balloons and omnibearing arrangement of the FBG pressure sensing array, the overall pressure distribution conditions of different subjects in the axial direction of the vagina can be accurately measured. The pelvic floor muscle pressure detector can be used for pelvic floor muscle pressure detection of a subject in a horizontal position state and can also be used for continuous monitoring in an active state of the subject, various clinical evaluation requirements are met, and the pelvic floor muscle pressure detector has the advantages of being high in measurement precision, convenient to operate, low in maintenance cost and the like.

Description

Technical Field

[0001] The present invention belongs to the technical field of gynecological medical instruments, and in particular relates to a high-precision multifunctional pelvic floor muscle pressure measurement system based on optical fiber sensing. Background Art

[0002] The pelvic floor muscles (PFM) are the key dynamic stability system to maintain the normal function of the pelvic floor organs. They are divided into three layers from the outside to the inside: the outer layer includes the bulbospongiosus muscle, the ischiocavernosus muscle, the superficial transverse perineal muscle and the external anal sphincter; the middle layer is composed of the urethral sphincter and the deep transverse perineal muscle; the inner layer is the main device involved in urinary control, including the levator ani muscle and a pair of coccygeal muscles. According to the type of muscle fibers, the pelvic floor muscles can be divided into two categories: about 70% are type I muscle fibers, which are responsible for maintaining endurance and stability and providing long-term support for the pelvic organs; the rest are type II muscle fibers, which are responsible for rapid and powerful contractions and play a key role in the active contraction activities of the pelvic floor muscles, such as urination, defecation, sexual life and other processes. When the pelvic floor muscles are abnormal, especially the weakening of the strength of type I muscle fibers, pelvic floor dysfunction disease (PFD) is clinically manifested as urinary incontinence, sexual dysfunction and pelvic organ prolapse, which have a negative impact on the quality of life and participation in physical activities. Due to the limited repair capacity of type I muscle fibers, once damaged, the recovery process is relatively slow. Therefore, regular inspection and evaluation of PFM conditions are essential to detect abnormalities in time and take preventive measures.

[0003] There are many methods for assessing the functional status and contraction strength of PFM, including vaginal palpation, ultrasound, magnetic resonance imaging (MRI), surface electromyography (sEMG), manometer, dynamometer, etc. Vaginal palpation is a common method for assessing PFM function in physical therapy, but it is greatly affected by subjective factors and is only used to qualitatively determine whether muscle contraction exists. Available quantitative methods include sEMG, manometry, dynamometer, ultrasound and MRI. These methods measure different aspects of PFM activity and have their place in physical therapy assessment, but they also have their limitations: sEMG technology can directly record the physiological electrical activity of pelvic floor muscles, but because this technology requires the recording electrode to be placed in the vaginal cavity of women, the subject can only be evaluated in a non-pregnant state, and the contact state of the electrode with the vaginal mucosa, the position of the electrode relative to the muscle fiber, the degree of vaginal lubrication, and the thickness of the vaginal tissue may affect the detection of sEMG signals. The manometer uses a pressure sensor array to obtain the pressure distribution curve along the vaginal axis, but its measurement results may be affected by body position, device displacement, etc., and there is a certain degree of uncertainty. At the same time, since the measured value obtained depends not only on the diameter of the probe used, but also on the individual differences in the inner diameter of the vagina of each subject, and the existing manometer lacks flexibility in probe specifications and is difficult to adapt to the individual conditions of different subjects, the reliability and universality of its measurement results need to be further improved. Non-invasive detection methods such as ultrasound and MRI improve the comfort of the examination and are suitable for the assessment of certain patient groups, but they cannot replace the direct and accurate measurement of the contraction force of the pelvic floor muscles. In view of the fact that the use of single electromyography, manometry or imaging technology has certain defects and limitations in assessing pelvic floor muscle function, combining the advantages of multiple technical means has become a future development trend. At present, there is an urgent need for a method that can organically combine accurate pressure measurement and high-resolution imaging technology, which is expected to comprehensively and objectively evaluate the contraction force and activity pattern of the pelvic floor muscles, and provide more reliable data support for clinical diagnosis and functional assessment. Summary of the invention

[0004] Technical problem solved: The present invention provides a high-precision multifunctional pelvic floor muscle pressure measurement system based on optical fiber sensing. Through adaptive adjustment of multiple balloons and the all-round deployment of FBG pressure sensing arrays, it can accurately measure the overall pressure distribution along the vaginal axis of different subjects. The present invention can not only be used for pelvic floor muscle pressure detection when the subject is in a supine position, but also can be used for continuous monitoring when the subject is active, meeting various clinical evaluation needs, and has the advantages of high measurement accuracy, convenient operation, and low maintenance cost.

[0005] Technical solution:

[0006] A high-precision multifunctional pelvic floor muscle pressure measurement system based on optical fiber sensing, the high-precision multifunctional pelvic floor muscle pressure measurement system comprising a handle, a probe, multiple annular balloons, multiple FBG pressure sensor arrays, an air pressure control system, an optical fiber, a tunable laser, an imaging probe and a host;

[0007] The probe is connected to one end of the handle and penetrates deep into the vagina. The probe includes a plurality of annular balloons stacked in sequence. A plurality of FBG pressure sensor arrays are evenly attached to the top of the probe and the side wall of each annular balloon.

[0008] The FBG pressure sensor array is connected to the tunable laser via an optical fiber, and the FBG pressure sensor array measures the pressure applied by the pelvic floor muscle group at the location, and feeds back the measurement result to the host; the imaging probe is connected to the host, and transmits the collected image signal to the host;

[0009] The annular balloon is provided with an inflation port, and the air pressure control system is connected to the inflation port of the annular balloon through an inflation pipe, and the inflation pipe and the annular balloon correspond one to one, so that the air pressure control system can independently adjust the inflation amount of the annular balloon;

[0010] The host divides multiple FBG pressure sensor arrays into several independent channels through time division multiplexing technology. Within each independent channel, wavelength division multiplexing technology is used to further divide the wavelength of the FBG pressure sensor array contained in the independent channel, and the FBG pressure sensor array is formed into a distributed measurement network; the host receives the measurement results sent by the FBG pressure sensor array and generates an overall pressure distribution curve along the vaginal axis.

[0011] Furthermore, a recessed portion is reserved on the upper surface of the annular balloon for laying optical fibers.

[0012] Furthermore, an intermediate buffer layer is provided between the FBG pressure sensing array and the annular balloon.

[0013] Furthermore, the middle buffer layer adopts a double-layer polyurethane structure, including an elastic polyurethane body and a honeycomb polyurethane foam. The honeycomb polyurethane foam is bonded to the surface of the annular balloon using an acrylic adhesive, and the FBG pressure sensor array is fixed on the elastic polyurethane body.

[0014] Furthermore, the intermediate buffer layer includes a rigid structural member, a fixing plug and a connecting shaft;

[0015] The fixing plug is located on the inner side of the annular balloon, and the surfaces at both ends of the connecting shaft have a threaded structure. The first end of the connecting shaft passes through the surface of the annular balloon to be connected to the fixing plug, and the second end is fixed to one of the surfaces of the rigid structure by a thread; the FBG pressure sensor array is fixed to the other surface of the rigid structure away from the connecting shaft by an adhesive.

[0016] Furthermore, the intermediate buffer layer includes a sealing ring, which is located at the notch of the annular balloon and is sleeved on the first end of the connecting shaft.

[0017] Furthermore, a hollow hose is provided in the middle of the annular balloon, and the optical fiber and the inflation pipeline are both led out of the hollow hose;

[0018] The imaging probe is installed in the hollow hose.

[0019] Furthermore, the outer side of the annular balloon is wrapped with a coating layer made of biocompatible material.

[0020] Furthermore, the probe and the handle adopt a split structure;

[0021] The handle is a silicone handle, and the optical fiber and the inflation pipeline pass through the center of the handle and are connected to the external host and inflation control system; the surface of the handle is provided with system control buttons.

[0022] Furthermore, the tail end of the handle adopts an arc-shaped silicone bracket structure, and the optical fiber and the inflation pipeline pass through the hole in the middle of the bracket and are connected to the host and inflation control system worn on the user's waist.

[0023] Beneficial effects:

[0024] First, the high-precision multifunctional pelvic floor muscle pressure measurement system based on fiber optic sensing of the present invention adopts multiple expandable balloon structures. These balloons can expand adaptively according to the individual body shape and pelvic floor muscle condition of the subject, so that the detector and the vaginal wall are completely in contact, thereby ensuring the acquisition of high-precision pressure measurement data, and effectively solving the measurement error problem caused by individual differences in the prior art.

[0025] Second, the high-precision multifunctional pelvic floor muscle pressure measurement system based on fiber optic sensing of the present invention can accurately measure the pressure values ​​at different locations along the vaginal axis by evenly distributing the FBG pressure sensor array on the surface of each balloon, and integrate these data into an overall pressure distribution curve.

[0026] Third, the high-precision multifunctional pelvic floor muscle pressure measurement system based on fiber optic sensing of the present invention fully considers the diverse needs of clinical applications, and rationally designs and integrates two different tail end shapes and host configurations according to different usage scenarios, which greatly improves the convenience of system use and makes the use of the system more humane and intelligent. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a comparison of the probe before and after expansion;

[0028] Figure 2 This is a schematic diagram of a balloon using a double-layer polyurethane material as the middle layer;

[0029] Figure 3 It is a schematic diagram of a balloon using a rigid material as the middle layer;

[0030] Figure 4 It is a structural component diagram using rigid material as the intermediate structure;

[0031] Figure 5 It is a schematic diagram of a split structural device;

[0032] Figure 6 It is a schematic diagram of a portable structural device;

[0033] Figure 7 This is the FBG hybrid multiplexing structure diagram. DETAILED DESCRIPTION

[0034] The following examples will enable those skilled in the art to more fully understand the present invention, but are not intended to limit the present invention in any way.

[0035] See also Figure 5 and Figure 6 The embodiment of the present invention discloses a high-precision multifunctional pelvic floor muscle pressure measurement system based on optical fiber sensing, wherein the high-precision multifunctional pelvic floor muscle pressure measurement system comprises a handle, a probe, a plurality of annular balloons, a plurality of FBG pressure sensor arrays, an air pressure control system, an optical fiber, a tunable laser, an imaging probe and a host;

[0036] The probe is connected to one end of the handle and penetrates deep into the vagina. The probe includes a plurality of annular balloons stacked in sequence. A plurality of FBG pressure sensor arrays are evenly attached to the top of the probe and the side wall of each annular balloon.

[0037] The FBG pressure sensing array is connected to the tunable laser via an optical fiber, and the FBG pressure sensing array measures the pressure applied by the pelvic floor muscle group at the position, and feeds back the measurement result to the host;

[0038] The imaging probe is connected to the host and transmits the collected image signal to the host;

[0039] The annular balloon is provided with an inflation port, and the air pressure control system is connected to the inflation port of the annular balloon through an inflation pipe, and the inflation pipe and the annular balloon correspond one to one, so that the air pressure control system can independently adjust the inflation amount of the annular balloon;

[0040] The host divides multiple FBG pressure sensor arrays into several independent channels through time division multiplexing technology. Within each independent channel, wavelength division multiplexing technology is used to further divide the wavelength of the FBG pressure sensor array contained in the independent channel, and the FBG pressure sensor array is formed into a distributed measurement network; the host receives the measurement results sent by the FBG pressure sensor array and generates an overall pressure distribution curve along the vaginal axis.

[0041] The present invention proposes a pelvic floor muscle strength measurement system based on an expandable balloon and an FBG pressure sensing array. The FBG pressure sensing array writes periodic refractive index modulation into the core layer of the optical fiber. When irradiated with light of a specific wavelength, Bragg reflection occurs. The wavelength of the reflected light is related to the grating period and the effective refractive index. When the optical fiber is subjected to strain or temperature changes, the effective refractive index changes, thereby causing the reflected wavelength to move. The strain or temperature is measured by accurately measuring the change in the reflected wavelength.

[0042] At present, the FBG pressure sensor array is applied to the field of pressure sensors, and its measurement range can cover 0-5MPa. In clinical diagnosis, the pelvic floor muscle pressure level that needs to be measured and evaluated is usually in the range of 15-50kPa, so the measurement range of the FBG pressure sensor array can cover and meet the measurement needs of pelvic floor muscle pressure. In addition, the FBG pressure sensor array also has the advantages of measurement accuracy, anti-electromagnetic interference, non-magnetic, high integration, and biocompatibility in the field of interventional medicine, and has obvious technological advantages over traditional pressure measurement methods.

[0043] In this embodiment, the index parameters of the selected FBG are: central wavelength 1525-1565nm, range of 1MPa, resolution of 0.1% of full scale (0.1% FS), and 4 equally spaced gratings sensitive to different wavelengths are engraved on one optical fiber. A tunable laser is selected as the output light source to meet the requirements of adjustable wavelength and power output. The above FBG is applied to the side surface of each balloon. At the same time, the balloon located at the top also has 4 evenly distributed FBG pressure sensors on its upper side, 3 of which are used to measure the muscle strength near the cervical os, and the other is specifically used for FBG temperature compensation. The 4 FBG sensors on each balloon are connected by a separate optical fiber, and the top balloon uses two optical fibers to connect 8 FBGs (FBG pressure sensor array) according to different positions. In order to achieve effective identification and reading of 20 FBG sensors, the system adopts a hybrid multiplexing technology combining time division multiplexing (TDM) and wavelength division multiplexing (WDM), and its structure is as follows Figure 7 As shown in the figure, firstly, 20 FBGs are divided into 5 independent channels by TDM technology, each channel contains 4 FBGs. Then, in each channel, WDM technology is used to further divide the wavelength of FBG, and then a distributed measurement network is formed, which can accurately measure the pressure applied by different pelvic floor muscle groups and obtain the overall pressure distribution curve along the vaginal axis. If a certain FBG fails, the balloon where the FBG is located can be replaced separately without replacing the entire detection device, reducing the subsequent maintenance cost.

[0044] In this embodiment, the probe whose front end penetrates deep into the body adopts a design of multiple expandable balloons, which can adaptively adjust the size of the probe according to the individual structural differences of different subjects, so that it can fit perfectly with the vaginal wall to ensure the accuracy of the measurement. The expandable balloon is made of low-pressure elastic material, and latex or silicone rubber with good biocompatibility is selected. In the uninflated expanded state, each balloon is flat and oval, and the height and diameter are both about 2cm. When compressed air is injected through the inflation port, the balloon can expand evenly, and its diameter can be expanded to 4cm and the height can reach 3cm. Figure 1This is a comparison chart before and after expansion. Taking into account the individual differences in vaginal structure, the forearm is 7-9cm long and the back wall is 10-12cm long. Therefore, the system uses a total of 4 such expandable balloons, which are arranged in an orderly manner along the longitudinal direction and present a hollow circular ring structure as a whole. Each balloon is equipped with a separate inflation port. According to the real-time feedback of pressure detection, each balloon can be independently inflated and controlled to expand adaptively to an appropriate degree, so that it fits closely with the vaginal wall of the subject. At the same time, in order to facilitate the wiring of optical fibers, a consistent concave structure is reserved on the upper and lower surfaces of each balloon. For the same subject, the system can memorize and store the specific expansion parameters of each balloon during the last test, and directly call them the next time they are used without repositioning and debugging, which greatly improves the accuracy and efficiency of the test.

[0045] In order to reduce the impact of the strain generated by the balloon during expansion on the FBG sensor, an intermediate buffer layer is added between the balloon and the sensor. The material of the intermediate buffer layer can be a polyurethane structure with vibration absorption and buffering function or a rigid material that is not easily deformed, so that it can effectively absorb and alleviate the deformation caused by balloon expansion, thereby improving the accuracy and reliability of pressure measurement. When a double-layer polyurethane structure is selected, the material close to the balloon layer is honeycomb polyurethane foam, and the other layer is made of elastic polyurethane. The area size of the two layers of material is controlled at about 1cm2, and the two layers of material are tightly attached with acrylic adhesive. The structure is as follows Figure 2 As shown. The honeycomb foam layer is used to absorb the strain generated during the balloon expansion process. It is bonded to the balloon surface using an acrylic adhesive. The FBG is fixed to the elastic polyurethane body using the same adhesive. With the excellent elastic properties of this layer of material, the relative displacement of the FBG during balloon inflation can be effectively avoided, ensuring the accuracy of the measurement. Another solution is to use a rigid material that is not easily deformed as the middle layer. In this solution, the middle layer includes three parts: a rigid material, a fixing plug, and a connecting shaft. Its structure is shown in the figure below. Figure 3 and Figure 4 As shown. The rigid material is a polyester plate with a size of about 1cm2. The fixing plug is located on the inside of the balloon. The polyester plate itself and the fixing plug have threaded structures. The surfaces at both ends of the connecting shaft have corresponding threaded structures. One end passes through the notch on the balloon surface and is connected to the plug. A rubber sealing ring is used at the notch to ensure the sealing of the balloon. The other end fixes the polyester plate with threads. Finally, the FBG is fixed on the other side of the polyester plate with an adhesive. The intermediate layer structure composed of the polyester plate and the metal threaded connector can effectively isolate and transmit the deformation stress generated by the balloon during expansion, preventing these strains from affecting the measurement of the FBG sensor.

[0046] In the middle of the multiple balloons, there is a hollow hose, which can be made of silicone rubber with good elasticity. The optical fiber bundle and the inflation pipeline of the system are both led out of the hose. The cavity in the center of the hose also reserves space to accommodate the imaging probe, thereby realizing the integration of pressure measurement and imaging diagnosis.

[0047] In order to improve the biocompatibility of the system and reduce the physiological discomfort caused to the subject, the outermost layer of the entire device is fully coated with excellent biocompatible materials. And considering the changes in the length and width of the detector, the outer coating layer uses a highly elastic silicone material, and its size can completely wrap it after the balloon is inflated. However, in order to avoid excessive stretching and deformation of the silicone during the balloon expansion process, a certain redundancy is reserved for the outer layer of the silicone in the initial state when the balloon is not expanded, so there are some wrinkles on the outer surface. This design maximizes the protection of the service life of the silicone material, while reducing the possibility of displacement of the probe during the detection process. At the tail end of the detector, a hollow rubber tube is used as the coating of the optical fiber and the inflation tube. The length is about 20-30cm, and the tail end is provided with a standard optical fiber connector and inflation tube connector.

[0048] In actual clinical applications, in order to meet the requirements of aseptic operation, the outer layer of the probe can be covered with a disposable condom. At the same time, considering the economic cost factor, the expandable balloon itself is made of inexpensive silicone or silicone rubber materials, and the cost of a single balloon is controlled at around 10-20 yuan; and the manufacturing cost of ordinary FBG sensors is also relatively low, so the entire front-end probe part can be designed as a disposable item, further reducing the risk of cross infection and providing reliable protection for the patient's health.

[0049] According to different clinical needs, the system is designed with two different tail end forms and host configurations: In the split structure, the tail end adopts an ergonomic handle design, and its structure is as follows: Figure 5 As shown in the figure, the shape fits the human hand, which is convenient for clinicians to control and fix the position and angle of the detector. The optical fiber bundle and the inflation pipe are led out from the hollow position of the handle and connected to the desktop host. There are control buttons on the handle, including: inflation, abandonment, detection and stop functions. The host is a computer system with integrated display and data processing functions. In the portable structure, the tail end adopts an arc-shaped silicone holder design with a length of about 2-3cm. Its structure is as follows Figure 6As shown. This design keeps the probe in a stable position during the measurement process, which is suitable for long-term dynamic monitoring. The tail end adopts an arc-shaped silicone holder design. The optical fiber and inflation tube pass through the hole in the middle of the holder and are connected to the portable data storage and inflation module to record the detection data during movement. The host only has data storage and inflation control modules, and no real-time analysis function. After the test is completed, the data needs to be exported and analyzed to obtain a detailed evaluation report. The two different structural designs can be quickly and seamlessly replaced and switched according to specific clinical testing needs, greatly improving the applicability and flexibility of the system.

[0050] The above are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should be regarded as the protection scope of the present invention.

Claims

1. A high-precision multifunctional pelvic floor muscle pressure measurement system based on optical fiber sensing, It is characterized in that The high-precision multifunctional pelvic floor muscle pressure measurement system comprises a handle, a probe, multiple annular balloons, multiple FBG pressure sensor arrays, an air pressure control system, an optical fiber, a tunable laser, an imaging probe and a host; The probe is connected to one end of the handle and penetrates deep into the vagina. The probe includes a plurality of annular balloons stacked in sequence. A plurality of FBG pressure sensor arrays are evenly attached to the top of the probe and the side wall of each annular balloon. The FBG pressure sensing array is connected to the tunable laser via an optical fiber, and the FBG pressure sensing array measures the pressure applied by the pelvic floor muscle group at the position, and feeds back the measurement result to the host; The imaging probe is connected to the host and feeds back the collected image signal to the host; The annular balloon is provided with an inflation port, and the air pressure control system is connected to the inflation port of the annular balloon through an inflation pipe, and the inflation pipe and the annular balloon correspond one to one, so that the air pressure control system can independently adjust the inflation amount of the annular balloon; The host divides multiple FBG pressure sensor arrays into several independent channels through time division multiplexing technology. Within each independent channel, wavelength division multiplexing technology is used to further divide the wavelength of the FBG pressure sensor array contained in the independent channel, and the FBG pressure sensor array is formed into a distributed measurement network; the host receives the measurement results sent by the FBG pressure sensor array and generates an overall pressure distribution curve along the vaginal axis.

2. The high-precision multifunctional pelvic floor muscle pressure measurement system based on optical fiber sensing according to claim 1, It is characterized in that A recessed portion is reserved on the upper surface of the annular balloon for laying optical fibers.

3. The high-precision multifunctional pelvic floor muscle pressure measurement system based on optical fiber sensing according to claim 1, It is characterized in that An intermediate buffer layer is arranged between the FBG pressure sensing array and the annular balloon.

4. The high-precision multifunctional pelvic floor muscle pressure measurement system based on optical fiber sensing according to claim 3, It is characterized in that The middle buffer layer adopts a double-layer polyurethane structure, including an elastic polyurethane body and a honeycomb polyurethane foam. The honeycomb polyurethane foam is bonded to the surface of the annular balloon by using an acrylic adhesive, and the FBG pressure sensor array is fixed on the elastic polyurethane body.

5. The high-precision multifunctional pelvic floor muscle pressure measurement system based on optical fiber sensing according to claim 3, It is characterized in that The intermediate buffer layer includes a rigid structural member, a fixing plug and a connecting shaft; The fixing plug is located on the inner side of the annular balloon, and the surfaces at both ends of the connecting shaft have a threaded structure. The first end of the connecting shaft passes through the surface of the annular balloon to be connected to the fixing plug, and the second end is fixed to one of the surfaces of the rigid structure by a thread; the FBG pressure sensor array is fixed to the other surface of the rigid structure away from the connecting shaft by an adhesive.

6. The high-precision multifunctional pelvic floor muscle pressure measurement system based on optical fiber sensing according to claim 5, It is characterized in that The middle buffer layer comprises a sealing ring, which is located at the notch of the annular balloon and sleeved on the first end of the connecting shaft.

7. The high-precision multifunctional pelvic floor muscle pressure measurement system based on optical fiber sensing according to claim 1, It is characterized in that A hollow hose is arranged in the middle of the annular balloon, and the optical fiber and the inflation pipeline are both led out of the hollow hose; The imaging probe is installed in the hollow hose.

8. The high-precision multifunctional pelvic floor muscle pressure measurement system based on optical fiber sensing according to claim 1, It is characterized in that The outer side of the annular balloon is wrapped with a coating layer made of biocompatible material.

9. The high-precision multifunctional pelvic floor muscle pressure measurement system based on optical fiber sensing according to claim 1, It is characterized in that The probe and the handle adopt a split structure; The handle is a silicone handle, and the optical fiber and the inflation pipeline pass through the center of the handle and are connected to the external host and inflation control system; the surface of the handle is provided with system control buttons.

10. The high-precision multifunctional pelvic floor muscle pressure measurement system based on optical fiber sensing according to claim 1, It is characterized in that The tail end of the handle adopts an arc-shaped silicone bracket structure, and the optical fiber and the inflation pipeline pass through the hole in the middle of the bracket and are connected to the host and inflation control system worn on the user's waist.

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