CN207125725U

CN207125725U - Vital sign simulating test device

Info

Publication number: CN207125725U
Application number: CN201720141638.6U
Authority: CN
Inventors: 刘同军; 赵豪; 钱志兵; 钟强
Original assignee: Nazhiyuan Technology Tangshan Co Ltd
Current assignee: Nazhiyuan Technology Tangshan Co Ltd
Priority date: 2017-02-16
Filing date: 2017-02-16
Publication date: 2018-03-23
Anticipated expiration: 2027-02-16

Abstract

The utility model discloses a kind of vital sign simulating test device, including：Test cell and vital sign analogue unit；Test cell includes：First frame, and the first air bag for being arranged on the inside of the first frame, being applied to for active force caused by being expanded or being shunk on testing sample；Vital sign analogue unit includes：For simulating the respiratory rate of human body and the breathing analogue unit of respiratory intensity；And/or for simulating the palmic rate of human body and the heartbeat modeling unit of beat intensity.Using vital sign simulating test device provided by the utility model, it is possible to achieve apply the controllable power of frequency and intensity on testing sample, testing sample is exported the test signal corresponding with the power applied；Meanwhile the initial time of breathing and heartbeat can be arbitrarily set, so as to control the synchronism of breathing and heartbeat, this makes test result be better able to really reflect the vital sign informations such as breathing and the heartbeat of simulated person's body reality.

Description

Vital sign simulation testing device

Technical Field

The utility model relates to a sensing test technical field specifically provides a vital sign simulation testing arrangement.

Background

Nowadays, people pay more attention to personal health problems, and therefore, the demand of health monitoring products is increasing. These health monitoring products generally acquire human body vital sign information, compare and analyze the acquired human body vital sign information, and determine the health condition of an individual according to the comparison and analysis result. According to research, companies are developing or have developed many different kinds of health monitoring products, and the companies need a device capable of checking the quality of the health monitoring products during the development or production of the health monitoring products, and the market lacks such a vital sign simulation test device.

Although some companies have developed some devices for simulating vital signs, these devices utilize complicated mechanical structures to directly exert a certain force on a sample to be tested (such as health monitoring products) to simulate human vital sign information. However, these vital sign simulation test devices can simply simulate the vital sign signals of the human body, and they cannot reflect the real condition of the vital signs. The main reason for this problem is that the vital sign information of a human body is unstable, and different people have different vital sign information, and even the same person has different vital sign information with the changes of time, physical conditions and motion states, for example, people breathe differently before and after exercise, and the breathing rate and breathing intensity after exercise are obviously higher than those before exercise; the existing vital sign simulation testing device can only provide stable vital sign information, and the stable vital sign information is not enough for accurately verifying and analyzing the quality of a health monitoring product.

SUMMERY OF THE UTILITY MODEL

The utility model aims at prior art's defect, provide a vital sign simulation testing arrangement for solve current vital sign simulation testing arrangement and only can export stable vital sign information and can't reflect the defect that human vital sign changes constantly.

The utility model provides a vital sign simulation testing arrangement, it includes: the device comprises a test unit and a vital sign simulation unit; wherein, the test unit includes: a first airbag and a first frame; the first air bag is arranged in the first rack and is used for applying acting force generated by expansion or contraction of the first air bag to a sample to be detected; an accommodating space is formed between the first air bag and the first frame or between the first air bag and the placing plane of the vital sign simulation testing device, a sample to be tested is arranged in the accommodating space, and the sample to be tested is placed on the placing plane of the first frame or the vital sign simulation testing device; the vital sign simulation unit comprises: a respiration simulation unit and/or a heartbeat simulation unit; the breath simulation unit is connected with a first air bag in the test unit and used for simulating the breathing frequency and the breathing intensity of a human body so as to apply acting force generated by expansion or contraction of the first air bag on a sample to be tested; the heartbeat simulation unit is connected with the first air bag in the test unit and used for simulating the heartbeat frequency and the heartbeat intensity of a human body so as to apply acting force generated by expansion or contraction of the first air bag on a sample to be tested.

Further, the respiratory frequency and the heartbeat frequency meet the setting requirements of a preset respiratory frequency and a preset heartbeat frequency; and/or the respiration intensity and the heartbeat intensity meet the setting requirements of the preset respiration intensity and the preset heartbeat intensity.

Further, the test unit further includes: the sample table is arranged in the first rack; wherein, be formed with accommodation space between first gasbag and the sample platform, be provided with the sample that awaits measuring in the accommodation space, the sample that awaits measuring is placed on the sample platform.

Further, the breathing simulation unit comprises: the second air bag is communicated with the first air bag through the first air duct, and the first driving mechanism can bear and repeatedly extrude the second air bag to change the inflating quantity in the first air bag.

Further, the first drive mechanism includes: the second machine frame can bear a second air bag, a first rotating piece which is rotatably arranged on the second machine frame, and a first rotating source which is arranged on the second machine frame; the first rotating piece can repeatedly extrude the second air bag, and partial air in the second air bag enters the first air bag through the first air duct after the second air bag is extruded; the first rotating source is connected with the first rotating member and used for providing power for the first rotating member so as to enable the first rotating member to rotate.

Further, the first rotating member comprises a first rotating shaft which is rotatably arranged on the second frame, and a first wheel-shaped body which is arranged on the first rotating shaft; the first rotating shaft can drive the first wheel-shaped body to rotate under the driving of the first rotating source.

Further, the cross section of the first wheel-shaped body is elliptical; wherein the radius of the major axis of the ellipse is 12-14mm, and the radius of the minor axis of the ellipse is 9-11 mm.

Further, the first driving mechanism further includes: the first buffer driver is arranged between the first rotating piece and the second air bag; the first buffer driver is used for repeatedly squeezing the second air bag by the first buffer driver under the driving of the first rotating member.

Further, the first buffer type driver comprises a first transmission plate and a second transmission plate which are sequentially far away from the first rotating member, and a first elastic telescopic member arranged between the first transmission plate and the second transmission plate.

Further, the first buffer driver further comprises a plurality of first guide rods; one end of the first guide rod penetrates through the first elastic expansion piece and then is fixed on the second transmission plate, and the other end of the first guide rod penetrates through the first transmission plate in a sliding mode.

Further, the second frame comprises a first object stage for bearing the second air bag and a first supporting plate vertically arranged on the first object stage; the first wheel-shaped body is rotatably arranged on the first supporting plate through a first rotating shaft, and the first rotating shaft is parallel to the first object stage.

Further, the first driving mechanism further includes: at least one first limiting rod penetrating through the first supporting plate; the first limiting rod is located at the upper part of the first buffer driver and used for limiting the rebound position of the first buffer driver.

Further, the heartbeat simulation unit includes: a third air bag communicated with the first air bag through a second air duct, and a second driving mechanism capable of bearing and repeatedly squeezing the third air bag to change the inflation quantity in the first air bag.

Further, the second drive mechanism includes: the second rotating source is arranged on the third frame; the second rotating part can repeatedly extrude the third air bag, and partial air in the third air bag enters the first air bag through the second air duct after the third air bag is extruded; the second rotating source is connected with the second rotating member and used for providing power for the second rotating member so as to enable the second rotating member to rotate.

Further, the second rotating part comprises a second rotating shaft which is rotatably arranged on the third frame and a second wheel-shaped body which is arranged on the second rotating shaft; the second rotating shaft can drive the second wheel-shaped body to rotate under the driving of the second rotating source.

Further, the cross section of the second wheel-shaped body is oval or circular; wherein the radius of the major axis of the ellipse is 10-12mm, and the radius of the minor axis of the ellipse is 9-11 mm; the radius of the circle is 9-11 mm.

Further, a plurality of protrusions for pressing the third air cell are provided at intervals on the outer circumferential surface of the second wheel-shaped body.

Further, the bulge is a semi-cylinder which takes the outer edge of the cross section of the second wheel-shaped body as the center and has the radius of 1-2 mm.

Further, the number of the half cylinders is two; wherein, the central connecting line between the two semi-cylinders passes through the circle center of the cross section of the second wheel-shaped body.

Further, the second driving mechanism further includes: the second buffer driver is arranged between the second rotating piece and the third air bag; the second buffer driver is used for repeatedly squeezing the third air bag by the second buffer driver under the driving of the second rotating piece.

Further, the second buffering formula driver is including keeping away from the third driving plate and the fourth driving plate that the second rotated the piece in proper order to and set up the second elastic expansion piece between third driving plate and fourth driving plate.

Further, the second buffer driver further comprises a plurality of second guide rods; one end of the second guide rod penetrates through the second elastic telescopic piece and then is fixed on the fourth transmission plate, and the other end of the second guide rod slidably penetrates through the third transmission plate.

Further, the third frame comprises a second object stage for bearing the third air bag and a second supporting plate vertically arranged on the second object stage; the second wheel-shaped body is rotatably arranged on the second supporting plate through a second rotating shaft, and the second rotating shaft is parallel to the second objective table.

Further, the second driving mechanism further includes: at least one second limiting rod penetrating through the second supporting plate; the second limiting rod is located at the upper part of the second buffer driver and used for limiting the rebound position of the second buffer driver.

Further, the air quantity adjusting device also comprises a total air quantity adjusting assembly connected with the first air bag.

Further, the total air quantity adjusting assembly comprises an air replenishing air bag which is connected with the first air bag and is provided with a pressure relief valve.

Further, a pressure monitoring device connected with the first air bag is also included.

Further, the first frame comprises a bottom plate, a top plate and a supporting side plate arranged between the top plate and the bottom plate; the first air bag is fixedly arranged on the top plate.

According to the utility model provides a vital sign simulation testing arrangement, through breathing analog unit and/or the human breathing of heartbeat analog unit simulation and/or heartbeat to through the expansion of the first gasbag of control or the human vital sign information such as the human breathing of shrink simulation and/or heartbeat. By adopting the vital sign simulation testing device provided by the utility model, the force with controllable frequency and strength can be applied on the sample to be tested, so that the sample to be tested outputs the testing signal corresponding to the applied force; meanwhile, the starting time of respiration and heartbeat can be set arbitrarily, so that the synchronism of the respiration and the heartbeat is controlled, and the test result can reflect the actual vital sign information of the simulated human body, such as the respiration, the heartbeat and the like more truly.

Drawings

Fig. 1 shows a schematic structural diagram of a vital sign simulation testing device provided by the present invention;

fig. 2 shows a schematic cross-sectional view of a first wheel-shaped body in a first rotating member of a vital signs simulation test device according to an embodiment of the invention;

fig. 3 shows a schematic structural diagram of a first buffer driver of the vital sign simulation testing device provided by the present invention;

fig. 4a shows a schematic cross-sectional view of a second wheel-shaped body in a second rotating member of the vital signs simulation test device provided by the present invention;

fig. 4b shows a schematic cross-sectional view of a second wheel-shaped body in another second rotating member of the vital signs simulation test device provided by the present invention;

fig. 5 shows a schematic structural diagram of a second buffer driver of the vital sign simulation testing device provided by the present invention.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

The utility model provides a vital sign simulation testing arrangement, it includes: the device comprises a test unit and a vital sign simulation unit; wherein, the test unit includes: a first airbag and a first frame; the first air bag is arranged in the first rack and is used for applying acting force generated by expansion or contraction of the first air bag on a sample to be measured; an accommodating space is formed between the first air bag and the first rack or the placing plane of the first air bag vital sign simulation testing device, a sample to be tested is arranged in the accommodating space, and the sample to be tested is placed on the first rack or the placing plane of the vital sign simulation testing device; the vital sign simulation unit comprises: a respiration simulation unit and/or a heartbeat simulation unit; the breath simulation unit is connected with a first air bag in the test unit and is used for simulating the breathing frequency and the breathing intensity of a human body so as to apply acting force generated by expansion or contraction of the first air bag on a sample to be tested; the heartbeat simulation unit is connected with the first air bag in the test unit and used for simulating the heartbeat frequency and the heartbeat intensity of a human body so as to apply acting force generated by expansion or contraction of the first air bag on a sample to be tested.

Optionally, the utility model provides a test unit in the vital sign simulation testing arrangement still further includes: the sample table is arranged in the first rack; an accommodating space is formed between the first air bag and the sample table, a sample to be detected is arranged in the accommodating space, and the sample to be detected is placed on the sample table.

Fig. 1 shows a schematic structural diagram of the vital sign simulation testing device provided by the present invention. As shown in fig. 1, the vital sign simulation test device comprises a test unit 1 and a vital sign simulation unit (not shown); wherein, test unit 1 includes: a first air bag 11, a first machine frame 12 and a sample table 13; the first air bag 11 is arranged in the first machine frame 12 and is used for applying acting force generated by expansion or contraction of the first air bag 11 to the sample 4 to be measured; the sample table 13 is also arranged inside the first frame 12 and is used for bearing and placing the sample 4 to be detected; the vital sign simulation unit comprises: a respiration simulation unit 2 and a heartbeat simulation unit 3; the respiration simulation unit 2 is connected with the first air bag 11 in the test unit 1 and is used for simulating the respiration frequency and the respiration intensity of a human body so as to apply acting force generated by expansion or contraction of the first air bag 11 on the sample 4 to be tested; the heartbeat simulation unit 3 is connected with the first air bag 11 in the test unit 1 and is used for simulating the heartbeat frequency and heartbeat intensity of a human body, so that the acting force generated by the expansion or contraction of the first air bag 11 is applied to the sample 4 to be tested.

Further, the first chassis 12 includes a top plate 121 and a bottom plate 122, and a supporting side plate 123 disposed between the bottom plate 122 and the top plate 121; wherein the first airbag 11 is fixedly arranged on the top plate 121. Optionally, the top plate 121 is made of non-elastic material and is fixed in position, so as to ensure that the first air bag 11 applies the same force to the sample 4 to be tested under the condition of the same gas content, and ensure the accuracy and reliability of the test result.

An accommodating space is formed between the first air bag 11 and the sample stage 13, a sample 4 to be detected is arranged in the accommodating space, and the sample 4 to be detected is placed on the sample stage 13. In addition, also can with the utility model provides a sample platform 13 in the vital sign simulation testing arrangement omits, directly uses the bottom plate 122 of first frame 12 or the utility model provides a vital sign simulation testing arrangement's the plane of placing bears and places the sample 4 that awaits measuring. Specifically, if the bottom plate 122 of the first rack 12 is directly used to carry and place the sample 4 to be tested, an accommodating space is formed between the first air bag 11 and the bottom plate 122 of the first rack 12, the sample 4 to be tested is arranged in the accommodating space, and the sample 4 to be tested is placed on the bottom plate 122 of the first rack 12; if directly use the utility model provides a vital sign simulation testing arrangement place the plane and bear and place await measuring sample 4, then first gasbag 11 with the utility model provides a vital sign simulation testing arrangement place between the plane be formed with accommodation space, be provided with await measuring sample 4 in the accommodation space, await measuring sample 4 places the utility model provides a vital sign simulation testing arrangement place on the plane. The selection can be made by one skilled in the art according to the needs and is not limited herein.

In addition, in order to make the test environment more be close to the actual environment that human body is located, make and adopt the utility model provides a vital sign simulation testing arrangement's test result is more accurate reliable, and sample platform 13 can choose for use hard material or have elastic soft material (like rubber, silica gel or sponge etc.) preparation to form, does not do the injecing here. For example: if need simulate human breathing and heartbeat of lying on the sponge mattress, in order to make test environment be close the actual environment that the human body was located more, sample platform 13 is preferred to adopt and is formed with elastic sponge material preparation, can make the adoption like this the utility model provides a vital sign simulation testing arrangement's test result is more accurate reliable. If the bottom plate 122 that directly uses first frame 12 bears and places the sample 4 that awaits measuring, for the actual environment that makes test environment be close human position more, makes and adopts the utility model provides a vital sign simulation testing arrangement's test result is more accurate reliable, and the bottom plate 122 of first frame 12 can choose for use hard material or have elastic soft material (like rubber, silica gel or sponge etc.) preparation to form, and the place does not do not limit. For example: if need simulate human breathing and heartbeat of lying on rubber mattress, in order to make test environment be close the actual environment that human body is located more, the bottom plate 122 of first frame 12 is preferred to adopt and is formed with the preparation of elastic silica gel material, can make like this and adopt the utility model provides a vital sign simulation testing arrangement's test result is more accurate reliable. If directly use the utility model provides a vital sign simulation testing arrangement place the plane and bear and place await measuring sample 4, for making the actual environment that test environment is close human department more, make and adopt the utility model provides a vital sign simulation testing arrangement's test result is more accurate reliable, the utility model provides a vital sign simulation testing arrangement place the plane can be for hard material or have the plane of placing of elastic soft material (like rubber, silica gel or sponge etc.), and the place is not injectd. For example: if need simulate human breathing and heartbeat of lying on rubber mattress, in order to make test environment be close the actual environment that the human body was located more, the utility model provides a plane of placing of vital sign simulation testing arrangement preferably has elastic silica gel and places the plane, can make the adoption like this the utility model provides a vital sign simulation testing arrangement's test result is more accurate reliable.

Further, adopt the utility model provides a sample 4 that awaits measuring that vital sign simulation testing arrangement tested can be for friction generator and/or piezoelectric generator and including friction generator and/or piezoelectric generator's relevant product (like the physiology monitoring sensing area etc. including friction generator and/or piezoelectric generator), certainly also can be for other can use the utility model provides a sample that awaits measuring that vital sign simulation testing arrangement tested, technical staff in the art can test relevant sample that awaits measuring as required, and do not limit here. The friction generator may be a friction generator in the prior art, for example: the friction generator is of a three-layer structure, a four-layer structure, a five-layer intermediate film structure or a five-layer intermediate electrode structure, the friction generator at least comprises two surfaces forming a friction interface, and the friction generator is provided with at least two signal output ends; the piezoelectric generator may also be a piezoelectric generator in the prior art, for example: the piezoelectric generator is made of piezoelectric materials such as zinc oxide, piezoelectric ceramics, polyvinylidene fluoride, porous polypropylene, porous polytetrafluoroethylene and the like, and is provided with at least two signal output ends. For ease of understanding and description, the sample 4 to be tested is a physiological monitoring sensor strip including a triboelectric generator (hereinafter referred to as a physiological monitoring sensor strip) as an example.

The respiration simulation unit 2 is connected with the first air bag 11 in the test unit 1 and is used for simulating the respiration frequency and the respiration intensity of the human body. The first air bag 11 can be expanded or contracted by changing the inflation quantity in the first air bag 11, so that the acting force generated by the expansion or contraction of the first air bag 11 is applied to the physiological monitoring sensing belt, even if two surfaces forming a friction interface in the physiological monitoring sensing belt are contacted or separated, and the breathing of a human body is simulated.

The heartbeat simulation unit 3 is connected with the first air bag 11 in the test unit 1 and is used for simulating the heartbeat frequency and the heartbeat intensity of the human body. The first air bag 11 can be expanded or contracted by changing the inflation quantity in the first air bag 11, so that the acting force generated by the expansion or contraction of the first air bag 11 is applied to the physiological monitoring sensing belt, even if two surfaces forming a friction interface in the physiological monitoring sensing belt are contacted or separated, and the heartbeat of a human body can be simulated.

The utility model provides an among the vital sign simulation testing arrangement, make first gasbag 11 expansion or shrink through breathing analog unit 2 and heartbeat analog unit 3, thereby make two surfaces that constitute friction interface in the physiology monitoring sensing area realize contact or separation along with the expansion or shrink of first gasbag 11, this kind of mode is compared with two modes of exerting external force on the surface that constitute friction interface and make its passive contact or separation simulation human breathing and heartbeat, not only makes the actual environment that test environment is close human more and locates, also makes the adoption simultaneously the utility model provides a vital sign simulation testing arrangement's test result is more accurate reliable.

Under normal conditions, the human body will be followed by a heartbeat when breathing, that is, the signal monitored by the sample 4 to be measured is a composite signal of breathing and heartbeat. If the process of the human breath and heartbeat is simulated, the vital sign simulation unit needs to include the breath simulation unit 2 and the heartbeat simulation unit 3 at the same time, and the breath simulation unit 2 and the heartbeat simulation unit 3 need to work at the same time, so as to simulate the phenomenon of the human breath and heartbeat. However, since the actual respiratory rate and respiratory intensity of the human body and the heart rate and heart rate intensity are different, the human body may not be able to perform the respiration without the need for a special device, the preset respiratory frequency and the preset respiratory intensity, the preset heartbeat frequency and the preset heartbeat intensity which are the same as the actual respiratory frequency and the actual respiratory intensity of the human body, the actual heartbeat frequency and the actual heartbeat intensity of the human body can be determined according to the actual respiratory frequency and the actual heartbeat intensity of the human body, and the setting requirements of the preset breathing frequency and the preset breathing intensity as well as the preset heartbeat frequency and the preset heartbeat intensity are met by adjusting the breathing frequency and the breathing intensity of the breathing simulation unit 2 and the heartbeat frequency and the heartbeat intensity of the heartbeat simulation unit 3 (for example, the breathing frequency and the breathing intensity of the breathing simulation unit 2 and the heartbeat frequency and the heartbeat intensity of the heartbeat simulation unit 3 are equal to the preset breathing frequency and the preset breathing intensity as well as the preset heartbeat frequency and the preset heartbeat intensity). In addition, since the actual respiration and heartbeat of the human body cannot occur synchronously in most cases, the synchronicity of the simulated respiration and heartbeat of the human body can also be controlled by adjusting the initial operating time of the respiration simulation unit 2 and the heartbeat simulation unit 3.

In a specific embodiment of the present invention, as shown in fig. 1, the breathing simulation unit 2 includes: a second balloon 21 communicating with the first balloon 11 via a first airway (not shown), and a first actuating mechanism 22 capable of carrying and repeatedly squeezing the second balloon 21 at a predetermined breathing frequency and/or a predetermined breathing intensity to vary the amount of inflation in the first balloon 11. The first driving mechanism 22 repeatedly presses the second airbag 21 at a preset breathing frequency and/or a preset breathing intensity, and the second airbag 21 continuously changes the inflation amount in the first airbag 11 after being repeatedly pressed by the first driving mechanism 22, so that the first airbag 11 is expanded or contracted at the preset breathing frequency and/or the preset breathing intensity.

Specifically, when the first driving mechanism 22 presses the second airbag 21, the gas content in the second airbag 21 decreases, the volume decreases, and part of the gas in the second airbag 21 enters the first airbag 11 through the first gas guide tube, so that the gas content in the first airbag 11 increases, the volume increases, and the expansion of the first airbag 11 is realized, so that the first airbag 11 exerts an acting force on the physiological monitoring sensing strip 4, which is generated when the human body inhales, and the two surfaces of the physiological monitoring sensing strip 4, which form a friction interface, contact with each other; when the second air bag 21 is restored to the original state from the squeezed state, part of the gas in the first air bag 11 flows into the second air bag 21 through the first air duct, so that the gas content in the first air bag 11 is reduced, the volume is reduced, and the contraction of the first air bag 11 is realized, so that the acting force generated when the human body is simulated to exhale is applied to the physiological monitoring sensing belt 4 by the first air bag 11, and the two surfaces forming the friction interface in the physiological monitoring sensing belt 4 are separated from each other. The first air bag 11 is expanded or contracted with the preset breathing frequency and/or the preset breathing intensity along with the contraction or expansion of the second air bag 21, the process is very close to the expansion and contraction process of the chest when a human body actually breathes, and the accuracy of the test result is improved. In addition, through first air duct with first gasbag 11 and second gasbag 21 intercommunication, enable breathing analog unit 2 and test element 1 and physiology monitoring sensing area 4 separately to set up to reduce the electromagnetic interference that breathing analog unit 2 produced physiology monitoring sensing area 4, this accuracy that has also improved the test result.

In the breathing simulation unit 2, the first driving mechanism 22 includes a second frame 221 capable of carrying the second airbag 21, a first rotating member 222 rotatably provided on the second frame 221, and a first rotating source 223 provided on the second frame 221; the first rotating member 222 can rotate at a preset breathing frequency and/or a preset breathing intensity to repeatedly extrude the second airbag 21, after the second airbag 21 is extruded, part of gas in the second airbag enters the first airbag 11 through the first air duct, and after the second airbag 21 is repeatedly extruded by the first rotating member 222, the inflation quantity in the first airbag 11 can be continuously changed, so that the first airbag 11 is expanded or contracted at the breathing frequency and/or the preset breathing intensity; the first rotating source 223 is connected to the first rotating member 222 and configured to provide power to the first rotating member 222 so as to rotate the first rotating member 222, and the rotating frequency of the first rotating source 223 can be adjusted according to the preset breathing frequency, so that the setting requirement of the preset breathing frequency is met.

Further, the first rotating member 222 includes a first rotating shaft (not shown) rotatably disposed on the second frame 221 and a first wheel-shaped body (not shown) disposed on the first rotating shaft; the first rotating shaft can drive the first wheel body to rotate under the driving of the first rotating source 223. Wherein, the first wheel-shaped body structure is preferably an eccentric wheel.

Specifically, as shown in FIG. 2, the cross-section of the first wheel-shaped body in the first rotating member 222 is an ellipse, and the major axis radius R1 of the ellipse is 12-14mm, and the minor axis radius R2 is 9-11 mm. Preferably, the ellipse has a major axis radius R1 of 13mm and a minor axis radius R2 of 10 mm. In the present embodiment, the first rotating member 222 can repeatedly squeeze the second airbag 21 by the shape of the first wheel-shaped body in the first rotating member 222 and the rotation of the first rotating member 222 under the action of the first rotating source 223, the second airbag 21 enters part of the gas in the first airbag 11 through the first gas-guiding tube after being squeezed, and the second airbag 21 continuously changes the inflation amount in the first airbag 11 after being squeezed repeatedly by the first rotating member 222, so as to finally expand or contract the first airbag 11.

Therefore, the degree of squeezing of the second air bag 21 by the first rotating member 222 is adjusted by adjusting the length of the major axis and the length of the minor axis of the first wheel-shaped body with the elliptical cross section in the first rotating member 222, so as to control the inflation amount in the first air bag 11, and further achieve the control of the friction degree of the two surfaces forming the friction interface in the physiological monitoring sensor belt 4, so as to control the respiration intensity of the respiration simulation unit 2, that is, the respiration intensity of the respiration simulation unit 2 is related to the length of the major axis and the length of the minor axis of the first wheel-shaped body with the elliptical cross section in the first rotating member 222, that is, the larger the difference between the length of the major axis and the length of the minor axis of the first wheel-shaped body with the elliptical cross section in the first rotating member 222 is, the larger the acting force applied by the first rotating member 222 to the second air bag 21 is, and.

Specifically, as shown in fig. 2, if the length of the short axis of the first wheel-shaped body with the elliptical cross section in the first rotating member 222 is fixed, as the length of the long axis thereof increases, that is, the difference between the radius R1 of the long axis and the radius R2 of the short axis gradually increases, the acting force applied by the first rotating member 222 to the second air bag 21 gradually increases, and the breathing intensity of the breathing simulation unit 2 also gradually increases, and vice versa, which is not described herein again; if the length of the major axis of the first wheel-shaped body with the elliptical cross section in the first rotating member 222 is constant, the acting force applied by the first rotating member 222 to the second air bag 21 is gradually reduced along with the increase of the length of the minor axis thereof, that is, the difference between the radius R1 of the major axis and the radius R2 of the minor axis is gradually reduced, and the breathing intensity of the breathing simulation unit 2 is also gradually reduced, and vice versa, which is not described herein again.

The first rotation source 223 may be a linear driving system capable of performing a reciprocating telescopic motion, such as a hydraulic cylinder system, a pneumatic cylinder system, or a linear motor system. Specifically, the first rotation source 223 may also include a first rotation output device 2231, such as an electric motor and the like, and a first transmission device 2232, such as a transmission shaft and the like, connecting the first rotation output device 2231 and the first rotating member 222. If the first rotary output device 2231 is a variable speed motor, the rotating speed of the variable speed motor can be controlled to adjust the rotating frequency of the first rotating member 222, so as to adjust the breathing frequency of the breathing simulation unit 2 to meet the setting requirement of the preset breathing frequency.

In this embodiment, the physiological monitoring sensor strip 4 is separated from the first driving mechanism 22 by the second air bag 21 communicated with the first air bag 11, and on the basis of the separation, the physiological monitoring sensor strip 4 and the first rotating member 222 and the first rotating source 223 are respectively carried by the first frame 12 and the second frame 221 which are independent of each other, so that the vibration generated by the second frame 221 due to the operation of the first rotating member 222 and the first rotating source 223 does not affect the normal operation of the test unit 1, and the accuracy of the test result is improved.

Further, as shown in fig. 1, the first driving mechanism 22 further includes a first buffer driver 224 disposed between the second air bag 21 and the first rotating member 222; the first cushion type driver 224 is used for repeatedly pressing the second air bag 21 by the first cushion type driver 224 under the driving of the first rotating member 222. First rotating member 222 is when extrudeing second gasbag 21 repeatedly through first buffering formula driver 224, can avoid first rotating member 222 directly to extrude second gasbag 21 hard, this not only can improve the life of second gasbag 21, avoids first rotating member 222 directly to extrude the damage that causes to second gasbag 21, can also make first rotating member 222 to the more relaxed applyed pressure of second gasbag 21, thereby makes the adoption the utility model discloses a vital sign simulation testing arrangement's test process is close human actual respiratory more, and then makes the test result more accurate.

Wherein the first buffer driver 224 is a member or assembly capable of performing elastic expansion and contraction. Specifically, as shown in fig. 3, in this embodiment, the first buffering type driver 224 includes first and second driving plates 2241 and 2242, which are sequentially distant from the first rotating member 222, and a first elastic telescoping member 2243 disposed between the first and second driving plates 2241 and 2242. The process of pressing the second air bag 21 by the first rotating member 222 can be further eased by the buffering action of the first elastic telescopic member 2243. Optionally, first resilient telescoping members 2243 are arranged in an array on first and second drive plates 2241 and 2242.

Optionally, the first elastic telescopic member 2243 is a rubber block, a silicon block, a spring or the like. For example: if the first elastic telescopic member 2243 is a spring, it can be known from hooke's law that the magnitude of the force applied by the first rotating member 222 to the second air bag 21 can be determined by the height of the spring compressed or released, so as to determine the inflation amount in the first air bag 11, and further determine the magnitude of the friction degree of the two surfaces forming the friction interface in the physiological monitoring sensing belt 4, thereby realizing the monitoring of the respiration intensity of the respiration simulation unit 2. In addition, a pressure sensor may be provided between the second air bag 21 and the first cushion type driver 224 (second driver plate 2242) to monitor the pressure to which the second air bag 21 is subjected.

Further, the first buffer driver 224 further includes a plurality of first guide bars 2244; one end of the first guide bar 2244 is fixed to the second driving plate 2242 after penetrating the first elastic telescoping member 2243, and the other end slidably penetrates the first driving plate 2241. In addition, the two ends of the first elastic telescopic member 2243 can be connected to the first driving plate 2241 and the second driving plate 2242 by welding, clamping or bonding, which can be selected by those skilled in the art according to the needs, and is not limited herein. The first guide 2244 prevents the first elastic extensible member 2243 from moving relative to the first and second driving plates 2241 and 2242 and separating from the first and second driving plates 2241 and 2242.

Alternatively, the second frame 221 includes a first stage 2211 for carrying the second airbag 21 and a first support plate 2212 vertically disposed on the first stage 2211; the first wheel-shaped body is rotatably disposed on the first support plate 2212 through a first rotating shaft, and the first rotating shaft is parallel to the first object stage 2211; the first rotation source 223 is disposed on the first object stage 2211, and this arrangement does not interfere with the movement of the components in the breathing simulation unit 2, and has the advantages of compact structure, high strength, and convenient manufacture.

In addition, the first driving mechanism 22 may further include at least one first stopper rod 225 (two first stopper rods are shown in fig. 1) penetrating the first support plate 2212, the first stopper rod 225 being located at an upper portion of the first buffer driver 224 for defining a rebound position of the first buffer driver 224. The first stopper 225 may be particularly located at a position of a plane where the first rotating member 222 is tangent to the upper surface of the first driving plate 2241 when the first rotating member 222 rotates to a position where the short axis thereof is perpendicular to the first driving plate 2241. The first limiting rod 225 can limit the rebound position of the first buffer driver 224, so that the first buffer driver 224 is prevented from damaging the first rotating member 222 due to overlarge instantaneous rebound impact, and the buffer driver has the advantages of convenience in disassembly, simple structure, easiness in adjustment and the like.

In a specific embodiment of the present invention, as shown in fig. 1, the heartbeat simulation unit 3 includes: a third balloon 31 communicating with the first balloon 11 via a second airway (not shown), and a second driving mechanism 32 capable of carrying and repeatedly squeezing the third balloon 31 at a predetermined heartbeat frequency and/or heartbeat intensity to change the inflation volume within the first balloon 11. The second driving mechanism 32 repeatedly presses the third airbag 31 at a preset heartbeat frequency and/or a preset heartbeat intensity, and the third airbag 31 continuously changes the inflation amount in the first airbag 11 after being repeatedly pressed by the second driving mechanism 32, so that the first airbag 11 is expanded or contracted at the preset heartbeat frequency and/or the preset heartbeat intensity.

Specifically, when the second driving mechanism 32 presses the third air bag 31, the gas content in the third air bag 31 is reduced, the volume is reduced, part of the gas in the third air bag 31 enters the first air bag 11 through the second air duct, so that the gas content in the first air bag 11 is increased, the volume is increased, and the expansion of the first air bag 11 is realized, so that the first air bag 11 exerts an acting force on the physiological monitoring sensing belt 4, which is generated when the myocardium of a human body is expanded, and then two surfaces of the physiological monitoring sensing belt 4, which form a friction interface, are in contact with each other; when the third air bag 31 is restored to the original state from the squeezed state, part of the gas in the first air bag 11 flows into the third air bag 31 through the second air duct, so that the gas content in the first air bag 11 is reduced, the volume is reduced, and the contraction of the first air bag 11 is realized, so that the first air bag 11 exerts an acting force on the physiological monitoring sensing belt 4, which is generated when the human myocardium contracts, is simulated, and the two surfaces forming a friction interface in the physiological monitoring sensing belt 4 are separated from each other. The first air bag 11 realizes the expansion or contraction with the preset heartbeat frequency and/or the preset heartbeat intensity along with the contraction or expansion of the third air bag 31, the process is very close to the process of the actual myocardial expansion and contraction of the human body, and the accuracy of the test result is improved. In addition, through the second air duct with first gasbag 11 and third gasbag 31 intercommunication, enable heartbeat analog unit 3 and test element 1 and physiology monitoring sensing area 4 separately to set up to reduce the electromagnetic interference that heartbeat analog unit 3 produced physiology monitoring sensing area 4, this accuracy that has also improved the test result.

In the heartbeat simulation unit 3, the second driving mechanism 32 includes a third frame 321 capable of carrying the third air bag 31, a second rotating member 322 rotatably provided on the third frame 321, and a second rotating source 323 provided on the third frame 321; the second rotating member 322 can rotate at a preset heartbeat frequency and/or a preset heartbeat intensity to repeatedly extrude the third airbag 31, after the third airbag 31 is extruded, part of gas in the third airbag enters the first airbag 11 through the second air duct, and after the third airbag 31 is repeatedly extruded by the second rotating member 322, the inflation quantity in the first airbag 11 can be continuously changed, so that the first airbag 11 expands or contracts at the heartbeat frequency and/or the preset heartbeat intensity; the second rotation source 323 is connected to the second rotation member 322 for providing power to the second rotation member 322 to rotate the second rotation member 322, and the rotation frequency of the second rotation source 323 can be adjusted according to the preset heartbeat frequency, so that the setting requirement of the preset heartbeat frequency can be met.

Further, the second rotating member 322 includes a second rotating shaft (not shown) rotatably disposed on the third frame 321 and a second wheel-shaped body (not shown) disposed on the second rotating shaft; the second rotating shaft can drive the second wheel-shaped body to rotate under the driving of the second rotating source 323. Wherein, the second wheel-shaped body structure is preferably an eccentric wheel.

Alternatively, as shown in FIG. 4a, the second wheel in the second rotating member 322 has an elliptical cross-section with a major radius R3 of 10-12mm and a minor radius R4 of 9-11 mm. Preferably, the ellipse has a major axis radius R3 of 11mm and a minor axis radius R4 of 10 mm. In this embodiment, the second rotating member 322 can repeatedly extrude the third airbag 31 by the second wheel-shaped body of the second rotating member 322 and the rotation of the second rotating member 322 under the action of the second rotating source 323, the third airbag 31 is extruded to make part of the gas inside enter the first airbag 11 through the second gas-guide tube, and the third airbag 31 continuously changes the inflation amount in the first airbag 11 after being repeatedly extruded by the second rotating member 322, so as to finally expand or contract the first airbag 11.

Therefore, the degree of squeezing of the second rotating member 322 on the third air bag 31 is adjusted by adjusting the length of the long axis and the length of the short axis of the second wheel-shaped body with an elliptical cross section in the second rotating member 322, so as to control the inflation amount in the first air bag 11, and further achieve the control of the friction degree of the two surfaces forming the friction interface in the physiological monitoring sensing belt 4, so as to realize the control of the heartbeat strength of the heartbeat simulation unit 3, that is, the heartbeat strength of the heartbeat simulation unit 3 is related to the length of the long axis and the length of the short axis of the second wheel-shaped body with an elliptical cross section in the second rotating member 322, that is, the larger the difference between the length of the long axis and the length of the short axis of the second wheel-shaped body with an elliptical cross section in the second rotating member 322 is, the larger the acting force applied by the second rotating member 322 on the third air bag 31 is.

Specifically, as shown in fig. 4a, if the length of the short axis of the second wheel-shaped body with the elliptical cross section in the second rotating member 322 is fixed, along with the increase of the length of the long axis thereof, that is, the difference between the radius R3 of the long axis and the radius R4 of the short axis is gradually increased, the acting force applied by the second rotating member 322 to the third air bag 31 is gradually increased, and the heartbeat strength of the heartbeat simulation unit 3 is also gradually increased, or vice versa, which is not described herein again; if the length of the long axis of the second wheel-shaped body with the elliptical cross section in the second rotating member 322 is fixed, as the length of the short axis thereof increases, that is, the difference between the radius R3 of the long axis and the radius R4 of the short axis gradually decreases, the acting force applied by the second rotating member 322 to the third air bag 31 gradually decreases, and the heartbeat strength of the heartbeat simulation unit 3 also gradually decreases, and vice versa, which is not described herein again.

Under normal conditions, the actual heartbeat intensity of the human body is smaller than the actual breathing intensity of the human body, and in order to be consistent with the actual conditions, the ratio of the long axis radius to the short axis radius of the cross section of the second wheel-shaped body in the second rotating part 322 is smaller than the ratio of the long axis radius to the short axis radius of the cross section of the first wheel-shaped body in the first rotating part 222, so that the inflation quantity of the third air bag 31 is smaller than the inflation quantity of the second air bag 21 in a single extrusion process, and therefore the acting force applied to the two surfaces forming the friction interface in the physiological monitoring sensing belt 4 under the action of the heartbeat simulation unit 3 is smaller than the acting force applied to the two surfaces forming the friction interface in the physiological monitoring sensing belt 4 under the action of the breathing simulation unit 2, and the test result is closer to the test result of the human body, and is accurate and reliable.

Alternatively, as shown in fig. 4b, the cross-section of the second wheel in the second rotation member 322 may be circular with a radius R5 of 9-11 mm. Preferably, the radius R5 of the circle is 10 mm. At this time, the heartbeat strength of the heartbeat simulation unit 3 is related to the radius of the second wheel-shaped body with the circular cross section in the second rotating member 322, that is, the larger the radius R5 of the second wheel-shaped body with the circular cross section in the second rotating member 322 is, the larger the acting force applied by the second rotating member 322 to the third air bag 31 is, the larger the heartbeat strength of the heartbeat simulation unit 3 is, and vice versa, and details are not repeated herein.

Under normal conditions, the actual heartbeat intensity of the human body is smaller than the actual breathing intensity of the human body, in order to be consistent with the actual situation of the human body, the radius of the second wheel-shaped body with the circular cross section in the second rotating part 322 is smaller than the radius of the long axis of the cross section of the first wheel-shaped body with the elliptical cross section in the first rotating part 222, so that the inflation quantity of the third air bag 31 is smaller than the inflation quantity of the second air bag 21 in the single extrusion process, and therefore the acting force applied to the two surfaces forming the friction interface in the physiological monitoring sensing belt 4 under the action of the heartbeat simulation unit 3 is smaller than the acting force applied to the two surfaces forming the friction interface in the physiological monitoring sensing belt 4 under the action of the breathing simulation unit 2, and the test result is closer to the actual test result of the human body and is accurate and reliable.

Further, a plurality of protrusions 3221 for pressing the third air bag 31 are provided at intervals on the outer circumferential surface of the second wheel-shaped body in the second rotating member 322. The protrusion 3221 is a semi-cylinder with a radius of 1-2mm and centered on the outer edge of the cross section of the second wheel-shaped body in the second rotating member 322.

It should be noted that if the cross section of the second wheel-shaped body in the second rotating member 322 is oval, the protrusions 3221 are arranged on the outer peripheral surface of the second wheel-shaped body at intervals, and in order to conform to the actual condition of the human body (i.e., the actual heartbeat intensity of the human body is smaller than the actual respiratory intensity of the human body under normal conditions), the sum of the radius of the protrusions 3221 and the radius of the major axis of the second wheel-shaped body in the second rotating member 322, which has an oval cross section, should be smaller than the radius of the major axis of the first wheel-shaped body in the first rotating member 222, which has an oval cross section; if the second wheel-shaped body of the second rotation member 322 has a circular cross-section, the protrusions 3221 are disposed at intervals on the outer circumferential surface of the second wheel-shaped body, and in order to correspond to the actual condition of the human body (i.e., the actual heartbeat intensity of the human body is less than the actual respiratory intensity of the human body under normal conditions), the sum of the radius of the protrusions 3221 and the radius of the second wheel-shaped body of the second rotation member 322 having a circular cross-section should be less than the radius of the major axis of the first wheel-shaped body of the first rotation member 222 having an elliptical cross-section. Adopt above-mentioned structure can guarantee that the inflation volume of third gasbag 31 is less than the inflation volume of second gasbag 21 in single extrusion process to make the effort that two surfaces that constitute friction interface receive be less than the effort that two surfaces that constitute friction interface receive in the physiology monitoring sensing area 4 under the effect of heartbeat analog unit 3 in the physiology monitoring sensing area 4 under the effect of breathing analog unit 2, and then make the test result be close actual human test result more, it is accurate reliable.

Specifically, as shown in fig. 4b, the sum of the radius R6 of the protrusion 3221 and the radius of the second wheel-shaped body with a circular cross section in the second rotating member 322 is smaller than the radius of the major axis of the first wheel-shaped body with an elliptical cross section in the first rotating member 222. The number of the protrusions 3221 is preferably two, and the center connecting line between the two half cylinders passes through the center of the cross section of the second wheel-shaped body in the second rotating member 322, so that the inflation amount of the third air bag 31 can be ensured to be smaller than the inflation amount of the second air bag 21 in the single extrusion process, and thus, the acting force exerted on the two surfaces forming the friction interface in the physiological monitoring sensing belt 4 under the action of the heartbeat simulation unit 3 is smaller than the acting force exerted on the two surfaces forming the friction interface in the physiological monitoring sensing belt 4 under the action of the respiration simulation unit 2, so that the test result is closer to the actual human test result, and the test result is accurate and reliable.

The second rotation source 323 may be a linear driving system capable of repeatedly extending and contracting, such as a hydraulic cylinder system, a pneumatic cylinder system, or a linear motor system. Specifically, the second rotation source 323 may also include a second rotation output device 3231, such as a motor or the like, and a second transmission device 3232, such as a transmission shaft or the like, connecting the second rotation output device 3231 and the second rotation member 322. If the second rotation output device 3231 is a variable speed motor, the rotation speed of the variable speed motor can be controlled to adjust the rotation frequency of the second rotating member 322, so as to adjust the heartbeat frequency of the heartbeat simulation unit 3 to meet the setting requirement of the preset heartbeat frequency.

In this embodiment, the physiological monitoring sensor strip 4 is separated from the second driving mechanism 32 by the third air bag 31 communicated with the first air bag 11, and on the basis, the physiological monitoring sensor strip 4 and the second rotating member 322 as well as the second rotating source 323 are respectively carried by the first frame 12 and the third frame 321 which are independent from each other, so that the vibration generated by the third frame 321 due to the operation of the second rotating member 322 and the second rotating source 323 does not affect the normal operation of the testing unit 1, and the accuracy of the testing result is improved.

Further, as shown in fig. 1, the second driving mechanism 32 further includes a second buffer type driver 324 disposed between the third air bag 31 and the second rotating member 322; the second cushion type driver 324 is used for driving the second rotating member 322 to make the second cushion type driver 324 repeatedly squeeze the third air bag 31. Second rotation piece 322 is when extruding third gasbag 31 repeatedly through second buffering formula driver 324, can avoid second rotation piece 322 directly to extrude third gasbag 31 hard, this life that not only can improve third gasbag 31 avoids second rotation piece 322 directly to extrude the damage that causes to third gasbag 31, can also make second rotation piece 322 to the more relaxed applyed pressure of third gasbag 31, thereby makes the adoption the utility model discloses a vital sign simulation testing arrangement's test process is close human actual heartbeat process more, and then makes the test result more accurate.

Wherein the second buffer driver 324 is a member or assembly capable of performing elastic expansion and contraction. Specifically, as shown in fig. 5, in this embodiment, the second buffer driver 324 includes a third driving plate 3241 and a fourth driving plate 3242 sequentially distant from the second rotation member 322, and a second elastic expansion member 3243 disposed between the third driving plate 3241 and the fourth driving plate 3242. The process of pressing the third air bag 31 by the second rotation member 322 can be further eased by the buffering action of the second elastic expansion member 3243. Optionally, second resilient telescoping members 3243 are arranged in an array on third drive plate 3241 and fourth drive plate 3242.

Alternatively, the second elastic extension 3243 is a rubber block, a silicon block, a spring, or the like. For example: if the second elastic extensible member 3243 is a spring, it can be known from hooke's law that the magnitude of the force applied to the third air bag 31 by the second rotatable member 322 can be determined by the height of the compression or release of the spring, so as to determine the inflation amount in the first air bag 11, and further determine the magnitude of the friction degree of the two surfaces forming the friction interface in the physiological monitoring sensing belt 4, thereby realizing the monitoring of the heartbeat intensity of the heartbeat simulation unit 3. In addition, a pressure sensor may be provided between the third air bag 31 and the second cushion type actuator 324 (fourth actuator plate 3242) to monitor the pressure to which the third air bag 31 is subjected.

Further, the second buffer driver 324 further includes a plurality of second guide rods 3244; one end of the second guide rod 3244 is fixed to the fourth driving plate 3242 after penetrating the second elastic expansion member 3243, and the other end slidably penetrates the third driving plate 3241. In addition, two ends of the second elastic expansion element 3243 can be connected to the third driving plate 3241 and the fourth driving plate 3242 by welding, clipping, or adhering, which can be selected by those skilled in the art according to the needs, and is not limited herein. The second guide rod 3244 prevents the second elastic expansion element 3243 from moving relative to the third driving plate 3241 and the fourth driving plate 3242 and from being separated from the third driving plate 3241 and the fourth driving plate 3242.

Optionally, the third frame 321 includes a second stage 3211 for carrying the third airbag 31 and a second supporting plate 3212 vertically disposed on the second stage 3211; the second wheel-shaped body is rotatably disposed on the second supporting plate 3212 through a second rotating shaft, and the second rotating shaft is parallel to the second object stage 3211; the second rotation source 323 is disposed on the second stage 3211, and this arrangement does not interfere with the movement of each component in the heartbeat simulation unit 3, and has the advantages of compact structure, high strength, and convenience in manufacturing.

In addition, the second driving mechanism 32 may further include at least one second stopper rod 325 (two second stopper rods are shown in fig. 1) penetrating the second support plate 3212, and the second stopper rod 225 is located at an upper portion of the second buffer driver 324 to define a rebound position of the second buffer driver 324. The second stopper rod 325 may be specifically located at a position of a plane where the second rotation member 322 is tangent to the upper surface of the third driving plate 3241 when the second rotation member 322 rotates to a position where the minor axis thereof is perpendicular to the third driving plate 3241. The rebound position of the second buffer driver 324 can be limited by the second limiting rod 325, the second buffer driver 324 is prevented from being damaged due to overlarge instantaneous rebound impact, and the anti-rebound device has the advantages of convenience in disassembly, simple structure, easiness in adjustment and the like.

Further, the utility model provides a vital sign simulation testing arrangement still includes the total tolerance adjustment subassembly 5 that links to each other with first gasbag 11. The total gas amount adjusting unit 5 may include a gas-supplying bladder connected to the first bladder 11 and having a pressure-releasing valve. Due to individual differences of human bodies, in order to allow the respiration simulation unit 2 and the heartbeat simulation unit 3 to simulate different vital sign conditions of human bodies, the total air volume in the first air cell 11, the second air cell 21 and the third air cell 31 can be adjusted by the total air volume adjusting assembly 5. It should be understood that, since the first, second and third air cells 11, 21 and 31 are connected by the first and second air tubes, the air pressure in the first, second and third air cells 11, 21 and 31 is the same, that is, the total air volume adjusting assembly 5 is connected to any air cell and correspondingly to other air cells, therefore, the total air volume adjusting assembly 5 only needs to be disposed at a position connected to one of the first, second and third air cells 11, 21 and 31, and those skilled in the art can select the position according to the needs, and the position is not limited herein.

Furthermore, in order to improve the utility model provides a vital sign simulation testing arrangement's test result's uniformity and reliability, this vital sign simulation testing arrangement still includes the pressure monitoring device 6 who links to each other with first gasbag 11. Because the first air cell 11, the second air cell 21 and the third air cell 31 are connected by the first air duct and the second air duct, the air pressure in the first air cell 11, the second air cell 21 and the third air cell 31 is the same, therefore, the pressure monitoring device 6 can accurately monitor the pressure in the first air cell 11, the second air cell 21 and the third air cell 31, so as to ensure that the pressure in the first air cell 11, the second air cell 21 and the third air cell 31 is consistent under the same test condition of the vital sign simulation test device, thereby ensuring the consistency, the accuracy and the reliability of the test result. Preferably, the pressure monitoring device 6 may be a mechanical air pressure gauge or an electronic air pressure gauge, etc. which displays readings.

In summary, the vital sign simulation testing device provided by the utility model can apply a force with controllable frequency and intensity on the sample to be tested, so that the sample to be tested outputs a test signal corresponding to the applied force; meanwhile, the starting time of respiration and heartbeat can be set arbitrarily, so that the synchronism of the respiration and the heartbeat is controlled, and the test result can reflect the actual vital sign information of the simulated human body, such as the respiration, the heartbeat and the like more truly.

It should be understood that, when simulating the respiration and heartbeat of a human body at the same time, the vital sign simulation unit in the vital sign simulation testing device provided by the present invention must include the respiration simulation unit 2 and the heartbeat simulation unit 3 at the same time, and the respiration simulation unit 2 and the heartbeat simulation unit 3 work at the same time; when only simulating the breathing of a human body, the vital sign simulation unit in the vital sign simulation testing device provided by the utility model can only comprise the breathing simulation unit 2 and make the same work, and can also comprise the breathing simulation unit 2 and the heartbeat simulation unit 3 at the same time and only make the breathing simulation unit 2 work; when only simulating human heartbeat, the utility model provides a vital sign analog unit among the vital sign analog testing device can only include heartbeat analog unit 3 to make its work, also can include breathing analog unit 2 and heartbeat analog unit 3 simultaneously, and only make heartbeat analog unit 3 work. The selection can be made by one skilled in the art according to the needs and is not limited herein.

Further, in the present invention, the contact or separation of the two surfaces constituting the frictional interface in the physiological monitor sensor strip 4 includes not only the contact or separation that can be seen by the human eye in a macroscopic concept but also the contact or separation that cannot be seen by the human eye in a microscopic concept.

It should be noted that when the device for simulating and testing vital signs provided by the present invention is used, the signal output end of the physiological monitoring sensor strip 4 is connected to a signal acquisition and processing device (such as a digital oscilloscope), so as to obtain the corresponding electrical signal generated by the first air bag 11 applied on the physiological monitoring sensor strip 4.

Finally, it is noted that: the above list is only the concrete implementation example of the present invention, and of course those skilled in the art can make modifications and variations to the present invention, and if these modifications and variations fall within the scope of the claims of the present invention and their equivalent technology, they should be considered as the protection scope of the present invention.

Claims

1. A vital sign simulation test device, comprising: the device comprises a test unit and a vital sign simulation unit; wherein,

the test unit includes: a first airbag and a first frame; the first air bag is arranged in the first rack and is used for applying acting force generated by expansion or contraction of the first air bag on a sample to be tested; an accommodating space is formed between the first air bag and the first rack or between the first air bag and a placing plane of the vital sign simulation testing device, the sample to be tested is arranged in the accommodating space, and the sample to be tested is placed on the first rack or the placing plane of the vital sign simulation testing device;

the vital sign simulation unit comprises: a respiration simulation unit and/or a heartbeat simulation unit; the breath simulation unit is connected with the first air bag in the test unit and used for simulating the breathing frequency and the breathing intensity of a human body so as to apply acting force generated by expansion or contraction of the first air bag on the sample to be tested; the heartbeat simulation unit is connected with the first air bag in the test unit and used for simulating the heartbeat frequency and the heartbeat intensity of a human body so as to apply acting force generated by expansion or contraction of the first air bag on the sample to be tested.

2. The device of claim 1, wherein the breathing frequency and the heartbeat frequency meet the setting requirements of a preset breathing frequency and a preset heartbeat frequency; and/or the respiration intensity and the heartbeat intensity meet the setting requirements of the preset respiration intensity and the preset heartbeat intensity.

3. The apparatus of claim 1, wherein the test unit further comprises: the sample table is arranged in the first rack; wherein,

an accommodating space is formed between the first air bag and the sample table, the sample to be detected is arranged in the accommodating space, and the sample to be detected is placed on the sample table.

4. The apparatus of claim 1, wherein the breathing simulation unit comprises: the second air bag is communicated with the first air bag through the first air duct, and the first driving mechanism can bear and repeatedly press the second air bag to change the inflating quantity in the first air bag.

5. The apparatus of claim 4, wherein the first drive mechanism comprises: the second machine frame can bear the second air bag, the first rotating piece is rotatably arranged on the second machine frame, and the first rotating source is arranged on the second machine frame; wherein,

the first rotating piece can repeatedly extrude the second air bag, and after the second air bag is extruded, part of air in the second air bag enters the first air bag through the first air duct;

the first rotating source is connected with the first rotating member and used for providing power for the first rotating member so as to enable the first rotating member to rotate.

6. The apparatus according to claim 5, wherein the first rotating member includes a first rotating shaft rotatably provided on the second frame, and a first wheel-shaped body provided on the first rotating shaft; the first rotating shaft can drive the first wheel-shaped body to rotate under the driving of the first rotating source.

7. The device according to claim 6, characterized in that the first wheel-shaped body has an elliptical cross-section; wherein the radius of the major axis of the ellipse is 12-14mm, and the radius of the minor axis of the ellipse is 9-11 mm.

8. The apparatus of claim 6, wherein the first drive mechanism further comprises: the first buffer driver is arranged between the first rotating piece and the second air bag; the first buffer driver is used for repeatedly squeezing the second air bag by the first buffer driver under the driving of the first rotating member.

9. The apparatus of claim 8 wherein said first cushioned drive includes first and second drive plates spaced sequentially away from said first rotatable member and a first resilient bellows disposed between said first and second drive plates.

10. The apparatus of claim 9 wherein the first cushioned actuator further comprises a plurality of first guide rods; one end of the first guide rod is fixed on the second transmission plate after penetrating through the first elastic expansion piece, and the other end of the first guide rod penetrates through the first transmission plate in a sliding mode.

11. The apparatus of claim 8, wherein the second frame comprises a first stage for carrying the second airbag and a first support plate vertically disposed on the first stage; the first wheel-shaped body is rotatably arranged on the first supporting plate through the first rotating shaft, and the first rotating shaft is parallel to the first object stage.

12. The apparatus of claim 11, wherein the first drive mechanism further comprises: at least one first limiting rod penetrating through the first supporting plate; the first limiting rod is located at the upper part of the first buffer type driver and used for limiting the rebounding position of the first buffer type driver.

13. The apparatus of claim 1, wherein the heartbeat simulation unit comprises: the second air bag is communicated with the first air bag through a second air duct, and the second driving mechanism can bear and repeatedly press the third air bag to change the inflation quantity in the first air bag.

14. The apparatus of claim 13, wherein the second drive mechanism comprises: the third machine frame can bear the third air bag, the second rotating piece is rotatably arranged on the third machine frame, and the second rotating source is arranged on the third machine frame; wherein,

the second rotating part can repeatedly extrude the third air bag, and partial air in the third air bag enters the first air bag through the second air duct after the third air bag is extruded;

the second rotating source is connected with the second rotating part and used for providing power for the second rotating part so as to enable the second rotating part to rotate.

15. The apparatus according to claim 14, wherein the second rotating member includes a second rotating shaft rotatably provided on the third frame, and a second wheel-shaped body provided on the second rotating shaft; the second rotating shaft can drive the second wheel-shaped body to rotate under the driving of the second rotating source.

16. The device according to claim 15, characterized in that the cross section of the second wheel-like body is elliptical or circular; wherein the radius of the major axis of the ellipse is 10-12mm, and the radius of the minor axis of the ellipse is 9-11 mm; the radius of the circle is 9-11 mm.

17. The apparatus according to claim 16, wherein a plurality of protrusions for pressing the third bladder are provided at intervals on an outer circumferential surface of the second wheel-shaped body.

18. The apparatus of claim 17, wherein the protrusion is a half cylinder centered on an outer edge of the cross-section of the second wheel-like body and having a radius of 1-2 mm.

19. The device of claim 18, wherein the number of semi-cylinders is two; and a central connecting line between the two semi-cylinders passes through the circle center of the cross section of the second wheel-shaped body.

20. The apparatus of claim 15, wherein the second drive mechanism further comprises: a second cushion type driver arranged between the second rotating piece and the third air bag; the second buffer driver is used for repeatedly squeezing the third air bag by the second buffer driver under the driving of the second rotating piece.

21. The apparatus of claim 20, wherein the second buffer driver includes third and fourth drive plates sequentially remote from the second rotatable member, and a second resilient, telescoping member disposed between the third and fourth drive plates.

22. The apparatus according to claim 21, wherein the second cushioned actuator further comprises a plurality of second guide rods; one end of the second guide rod is fixed on the fourth transmission plate after penetrating through the second elastic expansion piece, and the other end of the second guide rod slidably penetrates through the third transmission plate.

23. The apparatus of claim 20, wherein the third frame comprises a second stage for carrying the third airbag and a second support plate vertically disposed on the second stage; the second wheel-shaped body is rotatably arranged on the second supporting plate through the second rotating shaft, and the second rotating shaft is parallel to the second objective table.

24. The apparatus of claim 23, wherein the second drive mechanism further comprises: at least one second limiting rod penetrating through the second supporting plate; the second limiting rod is located at the upper part of the second buffer driver and used for limiting the rebound position of the second buffer driver.

25. The device of claim 1, further comprising a total gas volume adjustment assembly coupled to the first gas bladder.

26. The apparatus of claim 25, wherein the total gas volume adjustment assembly comprises a gas-replenishing bladder coupled to the first bladder and having a pressure relief valve.

27. The device of claim 1, further comprising a pressure monitoring device coupled to the first balloon.

28. The apparatus of claim 1, wherein the first housing comprises a bottom plate, a top plate, and a supporting side plate disposed between the top plate and the bottom plate; the first air bag is fixedly arranged on the top plate.