CN115778334A - Enhanced pulse taking device with protection function - Google Patents

Abstract

The invention provides an enhanced pulse taking device with a protection function, which comprises a rigid cavity and a pressure sensor, wherein a containing cavity is arranged in the rigid cavity, filling liquid filled in the rigid cavity is arranged in the containing cavity, a pulse taking detection hole communicated with the containing cavity is formed in the middle of the bottom end of the rigid cavity, a flexible membrane for sealing the pulse taking detection hole is arranged at the pulse taking detection hole, and the pressure sensor is arranged at the top of the inner cavity wall of the containing cavity in the rigid cavity. The invention uses the pulse beat to directly act on the flexible membrane of the pulse taking detection hole in the middle area at the bottom of the rigid chamber, which is beneficial to vibration convergence, so that the flexible membrane generates larger vibration, and the pressure sensor sensitively receives stronger pressure signals under the condition of liquid transfer fluctuation, thereby improving the detection sensitivity.

Description

Enhanced pulse taking device with protection function

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to an enhanced pulse taking device with a protection function.

Background

The traditional Chinese medicine is the traditional Chinese medicine, and is a medical system gradually formed by Chinese nationalities in long-term medical practice and having unique theoretical style and diagnosis and treatment characteristics. The inspection, auscultation, inquiry and cutting are the four diagnostic methods of traditional Chinese medicine, and in the four diagnostic methods, the traditional Chinese medicine places great importance on the pulse feeling, namely the pulse diagnosis. The traditional pulse diagnosis method is that a traditional Chinese medicine doctor touches and presses the artery pulse of a patient with fingers to observe the image of pulse-to-be-indicated pulse, so as to know the state of an illness and distinguish diseases.

The existing pulse sensor usually adopts a common pressure sensor, finds out a proper pulse diagnosis position when in use, and then fits the pulse sensor to the corresponding position of the wrist of a person, so that the pulse sensor is directly contacted with the skin, the acting force generated by the pulse repeated beating can act on the pulse sensor, the pressure change at the pulse position can be measured by the pulse sensor and the pressure signal can be output, and the pressure data collected by the pulse sensor can be used for facilitating the follow-up pulse condition analysis of doctors.

The in-process of taking pulse is carried out to prior art utilization pulse sensor, because the pulse sensor with human skin direct contact exposes outside, cause pulse sensor's collision and damage easily, consequently need pay attention to when using, and in the use, the removal of hand can make skin with produce relative tangential motion or effort between the pulse sensor with skin direct contact, thereby can influence pulse sensor's measuring result and produce the error, when simultaneously using pulse sensor to take pulse to the comparatively weak patient of pulse condition, because the pulse is beated not strong enough, traditional pulse sensor can not receive the pressure signal of pulse weak feedback when beating sensitively, consequently measuring sensitivity still awaits lifting.

Disclosure of Invention

The invention provides a pulse taking device, which is used for solving the problems that in the prior art, in the process of taking pulses by using a pulse sensor, the pulse sensor directly contacted with the skin of a human body is exposed outside, so that the pulse sensor is easy to collide and damage, and special attention needs to be paid when in use, in the use process, relative tangential motion or acting force is generated between the skin and the pulse sensor directly contacted with the skin due to the movement of hands, so that the measurement result of the pulse sensor can be influenced to generate errors, and in the process of taking pulses by using the pulse sensor for patients with weak pulse conditions, the traditional pulse sensor cannot sensitively receive pressure signals fed back when the pulse is weak due to insufficient pulse pulsation, so that the measurement sensitivity is still to be improved.

The invention is realized in such a way that the enhanced pulse taking device with the protection function comprises a rigid cavity and a pressure sensor, wherein an accommodating cavity is arranged in the rigid cavity, filling liquid filled in the rigid cavity is arranged in the accommodating cavity, a pulse taking detection hole communicated with the accommodating cavity is formed in the middle of the bottom end of the rigid cavity, a flexible membrane for sealing the pulse taking detection hole is arranged at the pulse taking detection hole, and the pressure sensor is arranged at the top of the inner cavity wall of the accommodating cavity in the rigid cavity.

The invention is also characterized by further comprising a pressing device for pressing the rigid chamber to adjust the pressing degree of the bottom of the rigid chamber on the skin at the vein taking position.

The invention is also characterized by also comprising wrist bands which are connected with the two sides of the pressure device and are used for being worn and wrapped by wrists.

The invention is also characterized in that the pressure device comprises an installation shell, a pressure applying column, a limiting cylinder, a limiting rod, a telescopic spring, a guide connecting plate, a guide cylinder and a guide column;

the mounting structure comprises a mounting shell, a rigid cavity, a limiting cylinder, a pressure applying column, a guide connecting plate, a plurality of guide columns, a plurality of telescopic springs and a sliding strip, wherein the rigid cavity is slidably mounted inside the mounting shell, the limiting cylinder with a hollow structure is vertically and fixedly mounted at the center of the top end inside the mounting shell, the pressure applying column is arranged inside the limiting cylinder, one end of the pressure applying column extends out of the top of the mounting shell, the limiting rod is integrally connected to the body of the pressure applying column, a limiting groove is formed in the wall of the limiting cylinder and can be used for adjusting the limiting rod to be in different height positions on the wall of the limiting cylinder and clamping the limiting rod when the pressure applying column is pressed, one end of the pressure applying column extending into the limiting cylinder is fixedly connected with the guide connecting plate, the guide columns are uniformly arranged on the top surface of the guide connecting plate, the guide columns are uniformly arranged on the top of the mounting shell, the telescopic springs are respectively arranged inside the guide cylinder and fixedly connected with the guide columns, the bottom surface of the guide connecting plate is fixedly connected with the top end of the rigid cavity, the rigid cavity is fixedly connected with the sliding strip, and the sliding strip is uniformly arranged on the outer side wall of the rigid cavity.

The invention is also characterized in that the pulse taking detection hole is in a bell mouth shape with a small upper part and a big lower part, and the flexible membrane is arranged at one end of the pulse taking detection hole close to the inner side of the accommodating cavity.

The invention is also characterized in that the accommodating cavity is a cavity with a truncated cone structure with a small top and a large bottom.

The invention is also characterized by further comprising a pressure-regulating elastic air bag which is positioned in the rigid chamber and can change the volume of the accommodating cavity, the pressure-regulating elastic air bag is arranged on the inner side wall of the accommodating cavity, the rigid chamber is provided with an air passage which is communicated with the interior of the pressure-regulating elastic air bag and is connected with an air pipe positioned outside the rigid chamber, and the air pipe is provided with a one-way air inlet valve and a pressure-regulating valve.

The invention is also characterized by further comprising a floating assembly arranged in the rigid cavity, wherein the floating assembly comprises a floating plate floating above the filling liquid in the containing cavity and a limiting frame vertically arranged at the top of the cavity wall in the containing cavity, the limiting frame is of a structure with an open bottom end and a hollow side wall, the limiting frame is positioned at the periphery of the pressure sensor, and the floating plate floats in the limiting frame and is positioned below the pressure sensor.

The invention is also characterized in that the filling liquid in the rigid cavity is water or alcohol and the like, and the pressure-regulating elastic air bag and the flexible membrane are both made of thermoplastic polyurethane.

The invention is also characterized in that the floating plate is made of non-metallic materials with density smaller than that of the filling liquid in the rigid cavity.

Compared with the prior art, the invention has the following beneficial effects:

the enhanced pulse taking device with the protection function can utilize the rigid cavity with filling liquid inside to arrange the pressure sensor, so that the pressure sensor is not exposed outside any more, the collision risk is reduced, the protection is realized, and the service life of the pressure sensor is prolonged; the flexible membrane arranged at the pulse taking detection hole arranged at the bottom end of the rigid chamber is utilized to be in direct contact with the skin at the pulse taking position, the flexible membrane is directly pressed at the pulse position when the pulse is taken, the edge part of the bottom of the rigid chamber outside the flexible membrane is used for pressing the skin outside the pulse, the skin at the flexible membrane can be enabled to protrude upwards towards the pulse taking detection hole, the flexible membrane at the pulse taking detection hole is beneficial to sensing the pulse of the pulse, filling liquid in the rigid chamber is used for transferring pressure, external interference is eliminated, the influence that the pressure sensor is not beneficial to sensing the pulse of the pressure sensor due to relative tangential motion generated when the pressure sensor is directly contacted with the skin is overcome, the pulse of the pulse is directly acted on the flexible membrane at the pulse taking detection hole in the middle area of the bottom of the rigid chamber, vibration gathering is beneficial, the flexible membrane generates large-amplitude vibration, the pressure sensor can sensitively receive stronger pressure signals under the condition of liquid transfer fluctuation, and the detection sensitivity is improved.

The present invention will be described in further detail below with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic structural diagram of an enhanced pulse taking device with a protection function according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of an enhanced pulse taking device with a protection function according to another embodiment of the present invention.

Fig. 3 is a schematic diagram of the connection between the rigid chamber and the pressure applying device according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of an enhanced pulse taking device with a protection function according to another embodiment of the present invention.

Fig. 5 is a schematic structural view of an enhanced pulse taking device with a protection function according to another embodiment of the present invention.

Fig. 6 is a schematic structural view of an enhanced blood vessel taking device with a protective function according to another embodiment of the present invention.

In the figure: 1. a rigid chamber; 2. a pressure sensor; 3. an accommodating chamber; 4. taking pulse detection holes; 5. a flexible film; 6. a pressure applying device; 601. mounting a shell; 602. applying a pressure column; 603. a limiting cylinder; 6031. a limiting groove; 604. a limiting rod; 605. a tension spring; 606. a guide connection plate; 607. a guide cylinder; 608. a guide post; 7. a wristband; 8. a chute; 9. a pressure regulating elastic air bag; 10. an air pipe; 11. a floating assembly; 1101. a floating plate; 1102. a limit frame; 12. a slide bar.

Detailed Description

To further explain the technical means and effects of the present invention adopted to achieve the intended purpose, the following detailed description of the embodiments, structural features and effects of the present invention will be made with reference to the accompanying drawings and examples.

Example 1

The embodiment of the invention provides an enhanced pulse taking device with a protection function as shown in figure 1, which comprises a rigid chamber 1 and a pressure sensor 2, wherein the rigid chamber 1 is used as a part which is in direct contact with the skin of a human body pulse and can be made of ceramic or stainless steel materials, a containing cavity 3 is arranged in the rigid chamber 1, the rigid chamber 1 can be designed into a cylindrical structure with the containing cavity 3 during manufacturing, filling liquid filled in the rigid chamber 1 is arranged in the containing cavity 3, so that the filling liquid cannot flow out of the containing cavity 3, a pulse taking detection hole 4 communicated with the containing cavity 3 is formed in the middle of the bottom end of the rigid chamber 1, the position of the pulse taking detection hole 4 is used as a pulse taking position, after the pulse taking position is found, the position of the pulse taking detection hole 4 is aligned with the pulse taking position, a flexible membrane 5 for sealing the pulse taking detection hole 4 is arranged on the pulse taking detection hole 4, the flexible membrane 5 enables the filling liquid not to flow out of the pulse taking detection hole 4, under the action of the filling liquid, the flexible membrane 5 can be in the position of the pulse taking hole 4 and the pulse taking hole to be in a certain contact with the top of the skin, and the pressure sensor 2 is favorable for the pressure sensor to be mounted at the top of the internal cavity 1 when the pulse taking cavity.

According to the enhanced pulse taking device with the protection function, provided by the embodiment of the invention, the pressure sensor 2 can be arranged by utilizing the rigid chamber 1 with the filling liquid inside, so that the pressure sensor 2 is not exposed outside any more, the collision risk is reduced, the protection is realized, and the service life of the pressure sensor 2 is prolonged; the flexible membrane 5 arranged at the pulse taking detection hole 4 arranged at the bottom end of the rigid chamber 1 is utilized to be in direct contact with the skin at the pulse taking position, the flexible membrane 5 is directly pressed and covered at the pulse position when the pulse is taken, the edge part of the bottom of the rigid chamber 1 outside the flexible membrane 5 is used for pressing the skin outside the pulse, the skin at the flexible membrane 5 is enabled to protrude upwards towards the pulse taking detection hole 4, the flexible membrane 5 at the pulse taking detection hole 4 is beneficial to sensing the pulse of the pulse, filling liquid in the rigid chamber 1 is used for transmitting pressure, external interference is eliminated, the influence that the pressure sensor 2 is not beneficial to sensing the pulse of the pressure sensor 2 due to relative tangential motion generated when the pressure sensor 2 is directly contacted with the skin is overcome, the pulse is directly acted on the flexible membrane 5 of the pulse taking detection hole 4 in the middle area of the bottom of the rigid chamber 1, vibration convergence is beneficial to generating large-amplitude vibration of the flexible membrane 5, and the pressure sensor 2 is enabled to sensitively receive stronger pressure signals under the condition that the liquid transmits the fluctuation, and the detection sensitivity is improved.

When the enhanced type pulse taking device with the protection function is used, after the pulse taking position is found, the rigid cavity 1 can be attached and fixed on the skin of the wrist to be measured for pulse by using materials such as a bandage, an adhesive tape and the like or other tools, and the flexible membrane 5 at the pulse taking detection hole 4 is ensured to be accurately positioned at the pulse taking position during fixing.

As an optional implementation manner of the embodiment of the present invention, as shown in fig. 2, in some embodiments of the present invention, the enhanced pulse taking device with a protection function further includes a pressure applying device 6 for applying pressure to the rigid chamber 1 to adjust a degree of pressing the bottom of the rigid chamber 1 on the skin at the pulse taking position, the pressure applying device 6 can press the rigid chamber 1 on the pulse skin to facilitate pulse taking, and the degree of pressing the rigid chamber 1 on the skin at the pulse taking position can be changed by adjusting the pressure applying device 6 during pulse taking, so as to facilitate the flexible membrane 5 to capture pulse beat.

As an optional implementation manner of the embodiment of the invention, as shown in fig. 2, the enhanced pulse taking device with the protection function further comprises wristbands 7 connected with two sides of the pressure applying device 6 and used for being worn and wrapped by wrists, when the enhanced pulse taking device is used, the wristbands 7 are worn on the wrists of a human body, after the positions of the wristbands are adjusted, the wristbands 7 are connected and fixed, in practical application, the wristbands 7 can be adhered and connected together by using magic tapes, the tightness of the wristbands 7 is proper when the enhanced pulse taking device is worn, and the wristbands 7 are prevented from being worn too tightly and too loosely while the rigid chamber 1 is prevented from sliding off at the pulse taking position.

As an alternative embodiment of the present invention, as shown in fig. 2 and 3, the pressing device 6 includes a mounting shell 601, a pressing column 602, a limiting cylinder 603, a limiting rod 604, a telescopic spring 605, a guide connecting plate 606, a guide cylinder 607, and a guide column 608.

The rigid cavity 1 is slidably mounted inside the mounting shell 601, a cavity for placing the rigid cavity 1 is formed inside the mounting shell 601, the external shape of the mounting shell 601 can be an approximately hemispherical structure as shown in fig. 2, or a structure with a square outline shape can be adopted, a limiting cylinder 603 with a hollow structure is vertically and fixedly mounted at the center of the top end inside the mounting shell 601, the pressure applying column 602 is arranged inside the limiting cylinder 603, one end of the pressure applying column extends out of the limiting cylinder 603 to the outer side of the top of the mounting shell 601, a limiting rod 604 is integrally connected to a column body of the pressure applying column 602, a limiting groove 6031 capable of adjusting the limiting rod 604 to be in different height positions on the wall of the limiting cylinder 603 and clamping the limiting rod is formed in the wall of the limiting cylinder 603 when the pressure applying column 602 is pressed, the limiting groove 6031 is provided with clamping positions for clamping the limiting rod 604 at different height positions when the pressure applying column 602 is pressed, specifically, the limiting groove 6031 adopts a clamping groove structure with a step shape for clamping the limiting rod 604 at different height positions and realizing grading clamping grooves 604. The pressing column 602 is fixedly connected with a guide connecting plate 606 at one end extending into the limiting cylinder 603, a plurality of guide columns 608 are uniformly arranged on the top surface of the guide connecting plate 606, a plurality of guide cylinders 607 which are one-to-one corresponding to the guide columns 608 and sleeved outside the limiting rods 604 are uniformly arranged on the inner top of the installation shell 601, a telescopic spring 605 which is positioned inside the guide cylinders 607 is sleeved on each guide column 608, two ends of the telescopic spring 605 are fixedly connected with the inner top of the guide cylinders 607 and the guide connecting plate 606, the bottom surface of the guide connecting plate 606 is fixedly connected with the top end of the rigid chamber 1, vertically arranged sliding strips 12 are uniformly arranged on the outer side wall of the rigid chamber 1, and sliding grooves 8 which are in sliding fit with the sliding strips 12 are uniformly arranged on the inner side wall of the installation shell 601.

In this embodiment, the mode of applying pressure of used pressure device 6 is different from the mode of tightening the wrist strap in the common mode and changes the mode of getting the arteries and veins device to skin oppression degree, this pressure device 6 need not to tighten up the wrist strap again and just can easily adjust the degree of oppression of rigidity cavity 1 to getting arteries and veins department skin, and need not to set up the structure such as gasbag class in the wrist strap inboard, the mode of tightening up the wrist strap and the mode of applying pressure that the wrist strap inboard set up the gasbag can make the wrist wholly be in the oppression and tighten up the state, not only the travelling comfort is poor but also influence blood flow, can bring adverse effect for getting the arteries and veins, influence the authenticity of getting the arteries and veins result.

The pressure applying device 6 adopted by the invention can be well combined with the rigid chamber 1, so that the device structure is more compact, the pressure applying device 6 can be matched with a wrist strap 7 for use when in use, after the wrist strap 7 is worn on the wrist, the pulse taking detection hole 4 at the bottom of the rigid chamber 1 is positioned at the pulse taking position, the limiting rod 604 can be clamped and connected at different height positions of the limiting groove 6031 by pressing the pressure applying column 602, the pressure applying column 602 moves downwards to different degrees when the limiting rod 604 is clamped and connected at different height positions of the limiting groove 6031, so that the guide connecting plate 606 can move downwards to different degrees, the rigid chamber 1 fixedly connected with the guide connecting plate 606 can be acted by downward force, the rigid chamber 1 can move downwards under the condition that the position of the mounting shell 601 is unchanged, the bottom of the rigid chamber 1 presses the skin at the pulse taking position, and the pressing degree of the bottom of the rigid chamber 1 on the skin at the pulse taking position can be adjusted.

In order to improve the accuracy in pressing and reduce the volume of the pressing device 6 connected with the rigid chamber 1, the invention purposefully arranges a guide structure which can guide the rigid chamber 1 to ensure vertical movement in the pressing operation in the mounting shell 601. Specifically, the top surface of the guide connecting plate 606 fixedly connected to the top of the rigid chamber 1 passes through the guide posts 608 uniformly arranged and matches with the guide cylinders 607 uniformly arranged at the top in the mounting housing 601, and the extension springs 605 sleeved on the guide posts 608 are located in the guide cylinders 607, so that when the pressing posts 602 are pressed, the extension springs 605 are gradually stretched in the downward moving process of the guide connecting plate 606, and the guide posts 608 are guided and limited by the guide cylinders 607 and do not shift greatly, so that the rigid chamber 1 fixedly connected to the guide connecting plate 606 can vertically and smoothly press the skin at the vein taking position. Because the flexible membrane 5 only occupies a part of the area of the bottom surface of the rigid chamber 1, the vein taking position is limited, so that the position of the flexible membrane 5 is easy to deviate in the pressure adjusting process to influence the vein taking result accuracy, in order to further reduce the deviation of the rigid chamber 1 in the vertical direction during pressure application, the mounting shell 601 and the rigid chamber 1 are in sliding connection, the sliding strips 12 uniformly arranged on the outer side wall of the rigid chamber are matched with the sliding grooves 8 uniformly arranged on the inner side wall of the mounting shell 601, so that the rigid chamber 1 can be ensured to move in the vertical direction during movement, and the guide structure composed of the guide posts 608, the guide cylinders 607 and the telescopic springs 605 is matched to ensure that the axis of the rigid chamber 1 cannot deviate in the movement under the double guide effect, so that the flexible membrane 5 in the smaller area cannot deviate in the vein taking position during the pressure adjusting process. And the telescopic spring 605 is arranged, on one hand, to enable the pressing operation to be more stable, and on the other hand, to guide the connecting plate 606 to bring the rigid chamber 1 to quick reset.

In addition, in the embodiment of the invention, the guide structure consisting of the guide column 608, the guide cylinder 607 and the extension spring 605 is arranged in the upper area of the guide connecting plate 606, so that the space between the mounting shell 601 and the limiting cylinder 603 can be effectively utilized, and the volume of the device is effectively reduced.

As an alternative embodiment of the present invention, as shown in fig. 4, the pulse taking detection hole 4 has a bell mouth shape with a small top and a large bottom, and the flexible membrane 5 is disposed at one end of the pulse taking detection hole 4 close to the inner side of the accommodating cavity 3. In the pulse taking process, the pulse taking detection hole 4 is located at the skin of the pulse taking position, the pulse of the pulse drives the flexible membrane 5 to vibrate, the flexible membrane 5 is used as a vibration source to transmit the vibration to the accommodating cavity 3 as far as possible, therefore, the pulse taking detection hole 4 is designed to be in the shape of a horn mouth with a small upper part and a large lower part, the pulse taking pulse beating position is located in the pulse taking detection hole 4 in the shape of the horn mouth, the pulse vibration energy can be more intensively present at the bottom of the accommodating cavity 3, the pulse beating energy is favorably gathered, the vibration is transmitted to the pressure sensor 2 through the filling liquid, the flexible membrane 5 is arranged at one end, close to the inner side of the accommodating cavity 3, of the pulse taking detection hole 4, the flexible membrane 5 cannot be exposed out of the pulse taking detection hole 4 to protect the flexible membrane 5 when the pulse is not taken, the service life of the flexible membrane 5 is ensured, and meanwhile, a deformation space is provided for the flexible membrane 5 to protrude downwards under the action of the filling liquid.

As an optional implementation manner of the embodiment of the present invention, as shown in fig. 5, the accommodating cavity 3 is a cavity with a truncated cone structure with a small top and a large bottom, so as to facilitate the upward convergence of energy when the filling liquid fluctuates under the action of vibration.

In the actual pulse taking application process, some patients with serious diseases, patients with weak pulse or children patients are often subjected to pulse taking to provide reliable data support for analyzing the state of an illness, and for such special patients, the pulse condition of the patients may be weak, so that the pressure applying device 6 is reasonably used to better take pulses. Because the pressing device 6 adopted by the invention directly presses the rigid chamber 1, and the pressing degree of the whole rigid chamber 1 on the skin of the vein-taking position is changed, the pressing adjustment is suitable for the special patients, the vein-taking position cannot be excessively pressed by the rigid chamber 1 to cause discomfort of the patients, even blood circulation and psychological tension and further influence the normal vein-taking process, and therefore, the embodiment of the invention also provides a new pressing adjustment mode on the basis of the structure of the pressing device 6, and the pressing degree of the vein-taking position is better adjusted by matching with the pressing device 6. As an optional implementation manner of the embodiment of the invention, the enhanced pulse taking device with the protection function of the embodiment of the invention further comprises a pressure-regulating elastic airbag 9 which is positioned in the rigid chamber 1 and can change the volume of the accommodating cavity 3, and when the enhanced pulse taking device with the protection function of the embodiment of the invention is applied, the pressure-regulating elastic airbag 9 can be additionally arranged in the rigid chamber 1 on the basis of any embodiment. This pressure regulating elasticity gasbag 9 can change the size of pressure regulating elasticity gasbag 9 after aerifing in proper amount to occupy the certain space that holds chamber 3, because the volume of holding the interior filling liquid of chamber 3 can not change, behind the 9 grow of pressure regulating elasticity gasbag, can resist flexible membrane 5 when resisting filling liquid and resist the effect, make flexible membrane 5 degree of protrusion down take place the change of different degrees, and then can follow the oppression degree of flexible membrane 5 to getting pulse skin department and exert pressure the adjustment. The adjustment of the degree of compression of the pulse-taking skin by the pressure-regulating elastic balloon 9 on the flexible membrane 5 can be used as a minute-amount pressure adjustment after the pressure adjustment by the pressure applying device 6, and the pressure-regulating elastic balloon 9 cannot be excessively enlarged. In this embodiment, the pressure-regulating elastic air bag 9 is disposed on the inner side wall of the accommodating cavity 3, the rigid chamber 1 is provided with an air passage communicated with the interior of the pressure-regulating elastic air bag 9 and is connected with an air pipe 10 located outside the rigid chamber 1, when the rigid chamber 1 is mounted inside the mounting shell 601 of the pressure applying device 6, the air pipe 10 correspondingly extends to the exterior of the mounting shell 601, the air pipe 10 is provided with a one-way air inlet valve and a pressure-regulating valve, when in use, the air pipe 10 can be connected with an air pipe 10 by using an inflating member to fill a proper amount of air into the pressure-regulating elastic air bag 9, the pressure of the pressure-regulating elastic air bag 9 can be adjusted by controlling the pressure-regulating valve, in practical application, the inflating member can adopt a needle tube used in injection, and under the condition that a needle head is not mounted, the front end of the needle tube is connected with the air pipe 10 to inflate. In addition, the pressure regulating elastic air bag 9 is arranged on the inner side wall of the accommodating cavity 3, so that the filling liquid can be in contact with the pressure regulating elastic air bag 9, and compared with the situation that the filling liquid is directly in contact with the inner cavity wall of the rigid chamber 1, the energy dissipation can be reduced in the process of filling liquid fluctuation, and the receiving of the pressure sensor 2 to pressure signals is enhanced.

As an optional implementation manner of the embodiment of the present invention, as shown in fig. 6, the vein taking device according to the embodiment of the present invention further includes a floating assembly 11 disposed inside the rigid chamber 1, where the floating assembly 11 includes a floating plate 1101 floating above the filling liquid in the accommodating cavity 3 and a limiting frame 1102 vertically disposed on the top of the inner cavity wall of the accommodating cavity 3, optionally, the floating plate 1101 is made of a non-metal material with a density smaller than that of the filling liquid in the rigid chamber 1, for example, a foam plate, a benzene plate, or a plastic plate may be used as the floating plate 1101, the shape of the floating plate 1101 may be a circular plate-shaped structure, and the inside may be hollow. Wherein, restriction frame 1102 is for the uncovered and lateral wall hollow out construction in bottom, and restriction frame 1102 is located pressure sensor 2's periphery, and floating plate 1101 floats in restriction frame 1102 and is located pressure sensor 2's below. According to the invention, the floating component 11 is arranged in the rigid chamber 1, in the using process, the pulse beat drives the flexible membrane 5 in contact with the pulse skin to vibrate, and in the process of transferring vibration energy through the filling liquid, the floating plate 1101 is limited in the limiting frame 1102 to float up and down, so that the floating plate 1101 can work on the pressure sensor 2 in combination with the filling liquid, and the pressure sensor 2 receives a stronger pressure signal, and the pulse taking process is more sensitive.

Optionally, the filling liquid in the rigid chamber 1 is water or alcohol, and the pressure-regulating elastic airbag 9 and the flexible film 5 are both made of Thermoplastic Polyurethane (TPU), and the material has excellent comprehensive properties such as high strength, high toughness, wear resistance and oil resistance.

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.

Claims (10)

1. An enhanced pulse taking device with a protection function is characterized in that: including rigid chamber (1) and pressure sensor (2), the inside of rigid chamber (1) is provided with holds chamber (3), just it is full to hold inside being provided with of chamber (3) the filling liquid of rigid chamber (1), the bottom middle part of rigid chamber (1) seted up with hold pulse taking detection hole (4) that chamber (3) are linked together, it is provided with flexible membrane (5) sealed with it to get pulse detection hole (4) department, rigid chamber (1) is in install the inner chamber wall top that holds chamber (3) pressure sensor (2).

2. A pulse taking device as defined in claim 1, wherein: the device also comprises a pressing device (6) for pressing the rigid chamber (1) to adjust the pressing degree of the bottom of the rigid chamber (1) on the skin at the vein taking position.

3. An enhanced pulse taking device with a protection function as claimed in claim 2, wherein: and the wrist strap (7) is connected with two sides of the pressure device (6) and used for being worn and wrapped by the wrist.

4. An enhanced vein extractor with protection function as claimed in claim 2 or 3, wherein: the pressing device (6) comprises a mounting shell (601), a pressing column (602), a limiting cylinder (603), a limiting rod (604), a telescopic spring (605), a guide connecting plate (606), a guide cylinder (607) and a guide column (608);

the rigid chamber (1) is slidably mounted inside the mounting shell (601), the limiting cylinder (603) with a hollow structure is vertically and fixedly mounted at the center of the top end inside the mounting shell (601), the pressure applying column (602) is arranged inside the limiting cylinder (603), one end of the pressure applying column extends out of the limiting cylinder (603) to the outer side of the top of the mounting shell (601), the column body of the pressure applying column (602) is integrally connected with the limiting rod (604), the wall of the limiting cylinder (603) is provided with a limiting groove (6031) which can be used for adjusting the limiting rod (604) to be in different height positions on the wall of the limiting cylinder (603) and clamping when the pressure applying column (602) is pressed, one end of the pressure applying column (602) extending into the limiting cylinder (603) is fixedly connected with the guiding connecting plate (606), the top surface of the guiding connecting plate (606) is uniformly provided with a plurality of guiding columns (608), the top of the mounting shell (601) is uniformly provided with a plurality of guiding columns (608) which are sleeved with the guiding columns (607) and are in one-to one correspondence with the guiding columns (607), and the guiding springs (607) which are respectively connected with the guiding springs (607) of the guiding cylinders (607), the bottom surface of guide connecting plate (606) with the top fixed connection of rigidity cavity (1), evenly be provided with vertical arrangement's draw runner (12) on the lateral wall of rigidity cavity (1), evenly be provided with on the inside wall of installing shell (601) with draw runner (12) sliding fit's spout (8).

5. An enhanced pulse taking device with a protection function as claimed in any one of claims 1 to 3, wherein: the vein taking detection hole (4) is in a horn mouth shape with a small upper part and a big lower part, and the flexible film (5) is arranged at one end of the inner side of the accommodation cavity (3), wherein the vein taking detection hole (4) is close to the inner side of the accommodation cavity.

6. An enhanced pulse taking device with a protection function as claimed in claim 5, wherein: the accommodating cavity (3) is a cavity with a truncated cone structure and a small top and a large bottom.

7. An enhanced pulse taking device with a protection function as claimed in claim 6, wherein: still including being located rigid chamber (1) is inside to be changed hold chamber (3) volume size's pressure regulating elasticity gasbag (9), pressure regulating elasticity gasbag (9) set up in hold on the inside wall of chamber (3), rigid chamber (1) seted up with the inside air flue that keeps the intercommunication of pressure regulating elasticity gasbag (9) is connected with and is located rigid chamber (1) outside trachea (10), install one-way admission valve and air-vent valve on trachea (10).

8. An enhanced vein extractor with protection function according to claim 6 or 7, wherein: still including set up in the inside subassembly (11) that floats of rigidity cavity (1), subassembly (11) float including float in hold unsteady board (1101) and vertical setting in that fill liquid top in chamber (3) holds restriction frame (1102) at chamber (3) inner chamber wall top, restriction frame (1102) are the uncovered and lateral wall hollow out construction in bottom, restriction frame (1102) are located the periphery of pressure sensor (2), float movable board (1101) float in restriction frame (1102) and be located the below of pressure sensor (2).

9. An enhanced pulse taking device with protection function as claimed in claim 7, characterized in that: the filling liquid in the rigid chamber (1) is water or alcohol and other liquids, and the pressure-regulating elastic air bag (9) and the flexible film (5) are both made of thermoplastic polyurethane.

10. An enhanced pulse taking device with a protection function as claimed in claim 8, wherein: the floating plate (1101) is made of a non-metal material with the density smaller than that of filling liquid in the rigid chamber (1).

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