A simulation detection device and detection method for an automatic blood pressure monitor

Abstract

The present invention discloses a simulation detection device and detection method for an automatic sphygmomanometer, comprising a support tube and an annular airbag, wherein the annular airbag is sleeved on the outer periphery of the support tube, the inner periphery is in contact with the outer wall of the support tube, and the outer periphery can expand outward; the annular airbag is connected to a blood pressure simulation detector via a trachea, and is used to simulate a blood pressure signal. The present invention detects the automatic sphygmomanometer through the simulation detection device, without the need to disassemble the automatic sphygmomanometer, and no longer connect the sphygmomanometer cuff to the detector. Instead, an airbag structure that simulates an arm is used to replace the sphygmomanometer cuff and connect it to the detector. The airbag only needs to be used as an arm, and the cuff of an ordinary sphygmomanometer can be tied to the cuff for measurement. The annular airbag can guide the pressure of the external cuff into the interior of the airbag and transmit it to the detector, thereby achieving the effect of indirectly connecting the cuff. In this way, the sphygmomanometer cuff can be eliminated from being disassembled, and a real usage scenario can be simulated, making detection more convenient.

Description

Technical Field

[0001] The present invention relates to a detection device, more specifically, to a simulation detection device for an automatic blood pressure monitor, and also to a detection method for the automatic blood pressure monitor. Background Art

[0002] The principle of measuring blood pressure with a sphygmomanometer is mainly to indirectly reflect the pressure range of the human arteries through changes in external pressure. Wrap the cuff 2 cm above the elbow of the brachial artery in the upper arm, place the stethoscope on the brachial artery, first inflate and pressurize until the arterial pulsation sound is no longer heard, indicating that the blood flow in the brachial artery is blocked, and then slowly deflate. At the moment when the cuff pressure is lower than the systolic pressure, the arterial pulsation sound can be heard with the stethoscope. The moment when the pressure in the blood exceeds the pressure in the cuff is the systolic pressure. Continue to deflate slowly, the arterial pulsation sound will continue. At the moment when the pressure in the blood completely exceeds the pressure in the cuff, the stethoscope will hear the last arterial pulsation sound, and then the cuff will be too loose to transmit the arterial pulsation sound. This is the diastolic pressure, also called low pressure.

[0003] Automatic blood pressure monitors do not rely on auscultation, but instead determine systolic and diastolic blood pressure directly based on blood pressure signals. Currently, when testing the accuracy of automatic blood pressure monitors, the instrument simulates pressure pulsations at a specific pressure to provide a signal to the monitor. This requires disassembling the blood pressure monitor cuff's tubing and connecting the instrument's tubing to the blood pressure monitor cuff's tubing to ensure pressure synchronization. Simply pulsating the monitor at a specific pressure stage is equivalent to simulating the blood pressure at that pressure stage. Comparing the actual measurement results of the monitor with the simulated values ​​generated by the blood pressure simulation monitor reveals the accuracy of the monitor's measurements. This current testing method is relatively cumbersome to operate, requiring the monitor's tubing to be disassembled and assembled, making testing more difficult for some models. Furthermore, the varying tubing structures of different blood pressure monitors further complicate disassembly and testing.

[0004] Furthermore, the current testing process directly connects the blood pressure cuff's tubing to the blood pressure simulator's tubing, ensuring the pressures on both are consistent. This ignores the effects of factors like cuff wrapping during actual testing. Therefore, while this testing method is effective, it differs significantly from the actual state of blood pressure monitoring. This translates to significant discrepancies between test data and actual results.

[0005] Therefore, a new solution needs to be proposed to solve this problem. Summary of the Invention

[0006] The purpose of the present invention is to solve the above problems and provide a simulation detection device for an automatic blood pressure monitor, which can more realistically reflect the status during actual use, simulate blood pressure more realistically and in line with actual operation, and make detection operation more convenient.

[0007] The above technical objectives of the present invention are achieved through the following technical solutions: a simulation detection device for an automatic blood pressure monitor, including a support tube and an annular airbag, the annular airbag is sleeved on the outer periphery of the support tube, the inner periphery is in contact with the outer wall of the support tube, and the outer periphery can expand outward; the annular airbag is connected to a blood pressure simulation detector through a trachea for simulating blood pressure signals.

[0008] The present invention is further configured such that both ends of the outer periphery of the support tube are provided with limiting sleeves, which can be slidably adjusted along the axial direction of the support tube; the limiting sleeves are used to block the two end positions of the limiting annular airbag.

[0009] The present invention is further configured such that a limiting convex ring is formed on a side of the limiting sleeve facing the annular airbag, and an outer peripheral contour of the limiting convex ring is larger than an outer peripheral contour of the annular airbag.

[0010] The present invention is further configured such that a plurality of slide grooves are provided on the outer circumference of the support tube, the slide grooves are arranged along the length direction of the support tube, and a slider is provided on the inner circumference of the limit sleeve. The slider is embedded in the slide groove and can slide back and forth along the slide groove.

[0011] The present invention is further configured such that a one-way locking mechanism is provided between the limit sleeve and the support tube, and the limit sleeve can be unidirectionally slid and adjusted in the direction away from the annular airbag, and can be unidirectionally locked in the direction toward the annular airbag; when the annular airbag expands along the length direction of the support tube, it can drive the limit sleeve to slide, and the spacing between the two limit sleeves is adapted to the length of the annular airbag.

[0012] The present invention is further configured such that the one-way locking mechanism includes a locking block, a radial through hole is opened on the outer peripheral wall of the support cylinder, the locking block extends into the through hole, and can be slidably adjusted along the through hole; the inward end of the locking block is elastically pressed by a locking spring, and the other end extends out of the through hole and abuts against the inner periphery of the limit sleeve, and the limiting is achieved by a limit tooth group.

[0013] The present invention is further configured such that the opening position of the through hole corresponds to the position of the sliding groove, the limiting tooth group is arranged between the locking block and the slider, the limiting tooth group includes a plurality of adaptive tooth grooves and convex teeth, the tooth grooves are evenly opened on the inner side of the slider, and the convex teeth are evenly arranged at one end of the locking block extending into the through hole; the tooth grooves and the convex teeth cooperate with each other so that the limiting sleeve slides unidirectionally toward the side away from the annular airbag.

[0014] The present invention is further configured such that the through hole is formed with an extended convex ring toward the inner circumference of the support tube, and the end of the locking block extends out of the convex ring and fixes the limit block; the outer periphery of the convex ring is threadedly connected to a mounting sleeve, and a locking spring is elastically pressed between the inner periphery protrusion of the mounting sleeve and the limit block; the limit block is fixedly connected to an extension rod on the side facing the inner circumference of the support tube, and the extension rod extends into the mounting sleeve; a connecting rod is installed on the inner circumference of the support tube, and the connecting rod is installed on the inner circumference of the support tube through a guide slide, and can slide axially along the support tube; the connecting rod and the extension rod are connected by an unlocking mechanism, and the limit sleeve is unlocked by driving the locking block to contract toward the inner circumference of the support tube.

[0015] The present invention is further configured such that support rings are provided on the outer periphery of both ends of the support tube, and a support spring is provided between the support ring and the limit sleeve. The support spring is pressed between the support ring and the limit sleeve to apply elastic force to the limit sleeve toward the annular airbag.

[0016] The present invention also provides a detection method for an automatic sphygmomanometer, which uses the above-mentioned simulation detection device for detection; the simulation detection device is placed inside the inner periphery of the sphygmomanometer cuff, so that the sphygmomanometer cuff is covered on the outer periphery of the annular airbag; when the sphygmomanometer is pressurized, the pressure inside the annular airbag rises synchronously, and the blood pressure simulation detector connected to the annular airbag provides a simulated arterial blood pressure pulsation signal, and the blood pressure of the simulation detection device is measured by the automatic sphygmomanometer to obtain detection data.

[0017] In summary, the present invention has the following beneficial effects:

[0018] The simulation detection device can be used to detect the automatic blood pressure monitor without disassembling the automatic blood pressure monitor and connecting the blood pressure cuff and the detector. Instead, an airbag structure that simulates an arm is used, and the airbag is connected to the blood pressure simulation detector. A standard simulated blood pressure signal can be formed in the annular airbag. This not only avoids the need to disassemble the blood pressure cuff, but also simulates the actual usage scenario. Compared with traditional detection methods, it is more convenient, more realistic and accurate.

[0019] This solution uses the simulated detection device to detect the automatic blood pressure monitor. There is no need to disassemble the automatic blood pressure monitor, and the blood pressure monitor cuff is no longer connected to the detector. Instead, an airbag structure that simulates an arm is used to replace the blood pressure monitor cuff and connect it to the detector. The airbag is used as an arm and the cuff of an ordinary blood pressure monitor is tied to it for measurement. The annular airbag can guide the pressure of the external cuff into the airbag and transmit it to the detector, thereby achieving the effect of indirectly connecting the cuff. This can avoid the need to disassemble the blood pressure monitor cuff and simulate real usage scenarios. Compared with traditional detection methods, it is more convenient and more realistic. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1A perspective view of a simulation detection device for an automatic blood pressure monitor according to the present invention;

[0021] Figure 2 This is a front view of a simulation detection device for an automatic blood pressure monitor according to the present invention;

[0022] Figure 3 This is a schematic diagram of the internal structure of a simulation detection device of an automatic blood pressure monitor of the present invention;

[0023] Figure 4 This is another schematic diagram of the internal structure of a simulation detection device of an automatic blood pressure monitor according to the present invention;

[0024] Figure 5 It is a structural schematic diagram of the one-way locking mechanism of the present invention;

[0025] Figure 6 for Figure 5 Schematic diagram of the structure at A in the middle;

[0026] Figure 7 It is a partial structural diagram of the unlocking mechanism of the present invention;

[0027] Figure 8 This is another schematic diagram of the internal structure of a simulation detection device of an automatic blood pressure monitor of the present invention.

[0028] Figure numerals: 1. support tube; 11. slide groove; 2. annular airbag; 3. limiting sleeve; 31. limiting convex ring; 32. slider; 4. blood pressure simulation detector; 41. trachea; 5. one-way locking mechanism; 51. locking block; 52. through hole; 53. convex ring; 54. limiting block; 55. mounting sleeve; 56. locking spring; 57. extension rod; 6. limiting tooth group; 61. tooth groove; 611. plane one; 612. inclined plane one; 62. convex tooth; 621. plane two; 622. inclined plane two; 7. unlocking mechanism; 71. support sleeve; 72. support hole; 73. connecting belt; 74. guide channel; 75. guide arc surface; 8. connecting rod; 81. guide slide; 9. support ring; 91. support spring. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] This embodiment discloses a simulation detection device for an automatic blood pressure monitor, such as Figure 1-3As shown, the device comprises a support tube 1, an annular airbag 2, and a blood pressure simulator 4. The support tube 1 is a rigid cylindrical structure; the annular airbag 2 is an annular structure that is sheathed around the outer periphery of the support tube 1 and has a certain length along the longitudinal direction of the support tube 1. The annular airbag 2 wraps around the outer periphery of the support tube 1, forming a structure that simulates a human arm. The blood pressure simulator 4 is connected to the annular airbag 2 via an air tube 41. The blood pressure simulator 4 can simulate a specific pressure and apply a standard simulated blood pressure signal to the annular airbag 2 through the air tube 41.

[0031] During the detection process of the automatic blood pressure monitor, the simulation detection device in this embodiment can be used to perform detection on the automatic blood pressure monitor, and the blood pressure value obtained by the detection can be compared with the value of the standard simulation blood pressure signal emitted by the blood pressure simulation detector 4 to detect the automatic blood pressure monitor.

[0032] The simulation detection device can be used to detect the automatic blood pressure monitor without disassembling the automatic blood pressure monitor and connecting the blood pressure monitor cuff and the detector. Instead, an airbag structure that simulates an arm is used, and the airbag is connected to the blood pressure simulation detector 4. A standard simulated blood pressure signal can be formed in the annular airbag 2. This can avoid the need to disassemble the blood pressure monitor cuff and simulate real usage scenarios. Compared with traditional detection methods, it is more convenient and more realistic and accurate.

[0033] Specifically, the annular airbag 2 is sleeved around the outer periphery of the support tube 1. The inner periphery of the annular airbag 2 forms a hole that adapts to the outer periphery of the support tube 1, forming a mutually nested structure. The inner periphery of the annular airbag 2 fits closely to the outer wall of the support tube 1, maintaining the stability of the inner periphery of the airbag during expansion and preventing unnecessary wrinkles that affect the deformation of the annular airbag 2. When the annular airbag 2 is subjected to internal pressure, its outer periphery can expand outward. An trachea 41 is connected to the edge of one end of the annular airbag 2, which is connected to the blood pressure simulator 4 to simulate a blood pressure signal.

[0034] Limiting sleeves 3 are provided at both ends of the outer periphery of the support tube 1. The limiting sleeves 3 at both ends can play a limiting role at both ends of the airbag, reducing excessive expansion of the airbag toward both ends to maintain the stability of the airbag expansion process.

[0035] The limiting sleeve 3 can be slidably adjusted along the axial direction of the support tube 1. The limiting sleeve 3 can block the two end positions of the limiting annular airbag 2 and produce adaptive displacement adjustment in the process of the annular airbag 2 spraying in the directions of both ends, which can form a certain degree of blocking restriction and avoid the annular airbag 2 from wrapping around the limiting sleeve 3 during the expansion process and causing interference with the internal pressure of the airbag.

[0036] In order to maintain the limiting effect of the limiting sleeve 3 on the two ends of the annular airbag 2, a limiting protrusion 31 can be formed on the side of the limiting sleeve 3 facing the annular airbag 2. The outer contour of the limiting protrusion 31 is larger than the outer contour of the annular airbag 2. During the pressing process, the limiting protrusion 31 has a larger bottom surface area, which can contact the annular airbag 2 and thus maintain the stability of the annular airbag 2 during expansion and deformation.

[0037] Several chute grooves 11 are formed on the outer circumference of the support tube 1, generally four sets of chute grooves 11 are arranged along the length of the support tube 1. Protruding sliders 32 are formed at corresponding positions on the inner circumference of the limiting sleeve 3. The sliders 32 fit into the chute grooves 11, forming a guide structure that can slide along the chute grooves 11 and guide the sliding of the limiting sleeve 3.

[0038] The limiting sleeve 3 has a certain amount of damping during the sliding process, thereby ensuring a relatively stable fit of the limiting sleeve 3 on the outer circumference of the support tube 1, thereby preventing the limiting sleeve 3 from becoming too loose and falling off the ends of the support tube 1. Specifically, a damping coating can be applied to the contacting surface of the limiting sleeve 3, or the limiting sleeve 3 can be made of a rubber material with a certain degree of elasticity, with the inner circumference tightly fitted onto the support tube 1, thereby generating a certain amount of resistance and maintaining the stability of the limiting sleeve 3 during the axial adjustment process.

[0039] This embodiment also discloses a simulation detection device for an automatic blood pressure monitor, such as Figure 4-6 As shown, the above embodiment is described on the base material. A one-way locking mechanism 5 can be provided between the limiting sleeve 3 and the supporting tube 1 to limit the sliding of the limiting sleeve 3 through the one-way locking mechanism 5 .

[0040] The one-way locking mechanism 5 allows the limiting sleeve 3 to slide unidirectionally away from the annular airbag 2 and to lock unidirectionally when facing the annular airbag 2. The limiting sleeve 3 can adaptively move outward under the expansion pressure of the annular airbag 2, and the spacing between the two limiting sleeves 3 is adapted to the length of the annular airbag 2. Furthermore, this one-way limiting action prevents the two limiting sleeves 3 from approaching each other and prevents the limiting sleeves 3 from actively moving inward and exerting additional pressure on the annular airbag 2. This maintains the stability of the pressure within the annular airbag 2, reduces the error from the standard pressure, and improves detection accuracy.

[0041] like Figure 5As shown, the one-way locking mechanism 5 includes a locking block 51, and a radial through hole 52 is opened on the outer peripheral wall of the support tube 1. The locking block 51 extends into the through hole 52 and can be slid and adjusted along the through hole 52 to form a slidable structure. The inward end of the locking block 51 extends into the inner periphery of the support tube 1 and is elastically pressed by the locking spring 56. The other end extends out of the through hole 52 and abuts against the inner periphery of the limiting sleeve 3, and is limited by the limiting tooth group 6. Under the elastic action of the locking spring 56, the locking block 51 and the limiting tooth group 6 on the inner periphery of the limiting sleeve 3 can be kept in a relatively compressed state, forming a stable one-way lock.

[0042] To maintain the structural stability of the one-way locking mechanism 5, a protruding ring 53 can be formed extending from the through hole 52 toward the inner circumference of the support tube 1. The protruding ring 53 extends the through hole 52, increasing the length of the interlocking portion with the locking block 51. The end of the locking block 51 extends outward from the protruding ring 53, and a limit block 54 is fixed at the end of the locking block 51. The limit block 54 controls the extent of the outward extension of the locking block 51, thereby limiting the amount of expansion and contraction of the locking block 51. A mounting sleeve 55 is threadedly connected to the outer circumference of the protruding ring 53, and a locking spring 56 is elastically pressed between the inner circumference protrusion of the mounting sleeve 55 and the limit block 54.

[0043] Specifically, the through hole 52 can be positioned to correspond to the position of the chute 11, that is, the end of the through hole 52 is connected to the bottom of the chute 11. The locking block 51 extends through the through hole 52 and then into the chute 11. The limiting tooth set 6 is formed between the locking block 51 and the slider 32 on the inner circumference of the limiting sleeve 3, and the locking block 51 and the slider 32 are used to achieve the limiting position.

[0044] The limiting tooth set 6 includes a plurality of matching tooth grooves 61 and protruding teeth 62. The tooth grooves 61 are evenly spaced on the inner side of the slider 32 and arranged along the axis of the sliding support cylinder 1. The protruding teeth 62 are evenly spaced on the end of the locking block 51 that extends into the through hole 52. The tooth grooves 61 and the protruding teeth 62 cooperate with each other. Under the action of the locking spring, the protruding teeth 62 will be pressed into the tooth grooves 61, forming a one-way sliding limit.

[0045] like Figure 6 As shown, the tooth grooves 61 and protruding teeth 62 both form sawtooth structures, and their structures are mutually compatible. Each tooth groove 61 has a flat surface 611 and a sloped surface 612. The flat surface 611 faces toward the annular airbag 2, while the sloped surface 612 is inclined and faces away from the annular airbag 2. Each protruding tooth 62 has a flat surface 621 and a sloped surface 622. The flat surface 621 is parallel to the flat surface 611 of the corresponding tooth groove 61 and faces away from the annular airbag 2. The sloped surface 622 is inclined and parallel to the corresponding sloped surface 612 and faces toward the annular airbag 2.

[0046] When the limiting sleeve 3 is affected by the expansion of the annular airbag 2, it can move away from the annular airbag 2. During this movement, the groove 61 and the inclined surface 1 612 and inclined surface 2 622 of the protruding teeth 62 press against each other, pressing the locking block 51 toward the inner circumference of the support tube 1. The groove 61 and the protruding teeth 62 are then disengaged, allowing the limiting sleeve 3 to slide in this direction. When the limiting sleeve 3 stops sliding, the locking block 51 will protrude outward again under the action of the spring, and the protruding teeth 62 will re-engage with the groove 61. The limiting teeth set 6 will then re-engage, forming a one-way locking state.

[0047] When the limiting sleeve 3 moves toward the annular airbag 2, the first and second flat surfaces 611 and 621 between the tooth grooves 61 and the protruding teeth 62 press against each other, forming a directional displacement lock. This prevents the limiting sleeve 3 from being subjected to external pressure and thus transferring it to the annular airbag 2, thereby increasing the internal pressure of the annular airbag 2. Furthermore, the size of each tooth groove 61 and protruding tooth 62 can be reduced to increase the precision of the limiting sleeve 3's unidirectional positioning process and improve the accuracy of the limiting sleeve 3's adaptive adjustment.

[0048] This embodiment also discloses another simulation detection device of an automatic blood pressure monitor, such as Figure 4-7 As shown, the description is made on the substrate of the above embodiment.

[0049] like Figure 4 、 5 As shown, an extension rod 57 is fixedly connected to the side of the limit block 54 facing the inner circumference of the support tube 1. The extension rod 57 extends toward the inner circumference of the support tube 1 and extends out of the mounting sleeve 55. In addition, a connecting rod 8 is installed on the inner circumference of the support tube 1. The connecting rod 8 is mounted on the inner circumference of the support tube 1 via a guide slide 81 and can slide axially along the support tube 1. The connecting rod 8 and the extension rod 57 are connected by an unlocking mechanism 7. The axial movement of the connecting rod 8 can drive the extension rod 57 and the locking block 51 at the outer end of the extension rod 57 to retract inward, thereby opening the one-way locking mechanism 5, and then the limit sleeve 3 can be slid and reset.

[0050] like Figure 4 、 7 As shown, the unlocking mechanism 7 includes a support sleeve 71 and several connecting straps 73. The support sleeve 71 is fixedly mounted on the inner circumference of the support tube 1. The specific position of the support sleeve 71 corresponds to the position of the one-way locking mechanism 5, near the inner end of the extension rod 57. A support hole 72 is defined at the center of the support sleeve 71. The support hole 72 allows the connecting rod 8 to pass through and forms an axial sliding guide structure, providing a certain degree of support for the connecting rod.

[0051] There are multiple sets of connecting straps 73, with two connecting straps 73 connected to the end of each extension rod 57. The two connecting straps 73 extend toward both ends of the connecting rod 8 and are connected to the outer wall of the connecting rod 8. By pulling the connecting rod 8 axially, the extension rod 57 can be pulled inward, thereby pulling the locking block 51 inward, thereby unlocking the one-way locking mechanism 5. In addition, because each extension rod 57 has two connecting straps 73, the connecting rod 8 can be unlocked when moved in either axial direction, thereby facilitating operation and adjustment.

[0052] Furthermore, to enhance the stable transmission of the pulling force of the connecting band 73, a guide channel 74 can be provided within the support sleeve 71, corresponding one-to-one with the connecting band 73. One end of the guide channel 74 communicates with the outer periphery of the support sleeve 71, while the other end extends into the inner periphery of the support sleeve 71 and extends toward the corresponding end face, communicating with the end face of the support sleeve 71, forming an arc-shaped guide channel 74. A smoothly transitioned guide arc surface 75 is machined within the guide channel 74, thereby creating a stable force transmission state. This allows for smoother conversion of the axial movement of the connecting rod 8 into radial movement of the extension rod 57, i.e., the locking block 51, thereby facilitating unlocking.

[0053] In addition, based on the above embodiment, further improvements can be made, which will be described in detail with reference to FIG8 . Support rings 9 are installed at the outer periphery of both ends of the support tube 1, and support springs 91 are installed between the support rings 9 and the limiting sleeve 3. The support springs 91 are pressed between the support rings 9 and the limiting sleeve 3, and the support springs 91 can apply an elastic force to the limiting sleeve 3 toward the annular airbag 2.

[0054] The elastic action direction of the support spring 91 is consistent with the limit locking direction of the one-way locking mechanism 5. Under the action of the support spring 91, the locking stability of the one-way locking mechanism 5 can be maintained, ensuring that the limit tooth group 6 can be in a stable interlocking state, and the pressure locking state can be maintained between plane 1 611 and plane 2 621.

[0055] The support ring 9 may adopt a fixed structure, that is, the support ring 9 is fixed on the outer periphery of the support tube 1 to play a supporting and limiting role.

[0056] Alternatively, the support ring 9 can also be installed on the outer periphery of the support tube 1 using a movable sleeve structure, specifically a rubber sleeve-like structure, which exerts a certain pressure on the outer periphery of the support tube 1 and forms a corresponding maximum static friction force. During the expansion of the annular airbag 2, the limiting sleeve 3 is affected by the annular airbag 2 and produces axial slippage, which will exert a certain pressure on the support spring 91. When the support spring 91 is compressed excessively, the pressure of the support spring 91 exceeds the maximum static friction force between the support ring 9 and the support tube 1, which can push the limiting sleeve 3 to produce a small displacement in the outward direction, thereby reducing the compression of the support spring 91 and reducing the elastic restriction of the support spring 91 on the limiting sleeve 3, thereby avoiding excessive restrictive pressure on the annular airbag 2. This not only limits the annular airbag 2, but also avoids excessive pressure, thereby improving the accuracy of detection.

[0057] This embodiment also discloses a method for testing an automatic blood pressure monitor, employing the simulated detection device described in the above embodiment. A support tube 1 and an annular airbag 2 simulate a human arm. A blood pressure simulator 4 applies air pressure to the annular airbag 2, generating a standard simulated blood pressure signal. This eliminates the need for disconnecting the blood pressure cuff and allows for realistic simulation of actual use.

[0058] The simulated detection device is placed inside the circumference of the blood pressure monitor cuff, so that the blood pressure monitor cuff covers the outer circumference of the annular airbag 2. The blood pressure monitor is then worn according to the operating instructions. The simulated detection device is then used to measure blood pressure using an automatic blood pressure monitor. The measured data is then compared with the simulated standard data to obtain the automatic blood pressure monitor's test results.

[0059] This new blood pressure simulation method eliminates the need to disassemble the blood pressure monitor's air pressure circuit. Instead, it uses an airbag structure that simulates an arm to generate a simulated blood pressure signal. This eliminates the need to disassemble the blood pressure cuff while simulating real-world usage, making it more convenient than traditional blood pressure simulation methods. This method is particularly advantageous for fully automatic arm-bucket and wrist blood pressure monitors, which typically require complete disassembly for testing.

[0060] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A simulation detection device for an automatic blood pressure monitor, characterized in that: The annular airbag (2) comprises a support tube (1) and an annular airbag (2), wherein the annular airbag (2) is sleeved on the outer periphery of the support tube (1), the inner periphery of the annular airbag and the outer wall of the support tube (1) are in contact with each other, and the outer periphery can expand outward; the annular airbag (2) is connected to a blood pressure simulation detector (4) via an air tube (41) for simulating a blood pressure signal; The outer ends of the support tube (1) are provided with limiting sleeves (3), and the limiting sleeves (3) can be slidably adjusted along the axial direction of the support tube (1); the limiting sleeves (3) are used to block the positions of the two ends of the limiting annular airbag (2); The outer periphery of the support tube (1) is provided with a plurality of slide grooves (11), which are arranged along the length direction of the support tube (1); the inner periphery of the limiting sleeve (3) is provided with a slider (32), which is embedded in the slide groove (11) and can slide back and forth along the slide groove (11); A one-way locking mechanism (5) is provided between the limiting sleeve (3) and the support tube (1); the limiting sleeve (3) can be unidirectionally slidably adjusted in the direction away from the annular airbag (2), and can be unidirectionally locked in the direction toward the annular airbag (2); when the annular airbag (2) expands along the length direction of the support tube (1), it can drive the limiting sleeve (3) to slide, and the distance between the two limiting sleeves (3) is adapted to the length of the annular airbag (2).

2. The simulation detection device of an automatic blood pressure monitor according to claim 1, characterized in that: A limiting convex ring (31) is formed on the side of the limiting sleeve (3) facing the annular airbag (2), and the outer peripheral contour of the limiting convex ring (31) is larger than the outer peripheral contour of the annular airbag (2).

3. The simulation detection device of an automatic blood pressure monitor according to claim 1, characterized in that: The one-way locking mechanism (5) includes a locking block (51), and a radial through hole (52) is provided on the outer peripheral wall of the support cylinder (1). The locking block (51) extends into the through hole (52) and can be slidably adjusted along the through hole (52); one end of the locking block (51) facing inward is elastically pressed by a locking spring (56), and the other end extends out of the through hole (52) and abuts against the inner periphery of the limiting sleeve (3), and is limited by the limiting tooth group (6).

4. The simulation detection device for an automatic blood pressure monitor according to claim 3, characterized in that: The opening position of the through hole (52) corresponds to the position of the slide groove (11), the limiting tooth group (6) is arranged between the locking block (51) and the slider (32), and the limiting tooth group (6) includes a plurality of matching tooth grooves (61) and protruding teeth (62), the tooth grooves (61) are evenly opened on the inner side of the slider (32), and the protruding teeth (62) are evenly arranged on one end of the locking block (51) extending into the through hole (52); the tooth grooves (61) and the protruding teeth (62) cooperate with each other, so that the limiting sleeve (3) slides unidirectionally toward the side away from the annular airbag (2).

5. The simulation detection device for an automatic blood pressure monitor according to claim 3, characterized in that: The through hole (52) is formed with an extended convex ring (53) in the direction of the inner periphery of the support tube (1); the end of the locking block (51) extends out of the convex ring (53) and fixes the limiting block (54); the outer periphery of the convex ring (53) is threadedly connected to a mounting sleeve (55); a locking spring (56) is elastically pressed between the inner periphery protrusion of the mounting sleeve (55) and the limiting block (54); the limiting block (54) is fixedly connected to one side of the inner periphery of the support tube (1) An extension rod (57) is provided, and the extension rod (57) extends into the mounting sleeve (55); a connecting rod (8) is installed on the inner periphery of the support cylinder (1), and the connecting rod (8) is installed on the inner periphery of the support cylinder (1) through a guide slide (81) and can slide axially along the support cylinder (1); the connecting rod (8) and the extension rod (57) are connected through an unlocking mechanism (7), and the limiting sleeve (3) is unlocked by moving the locking block (51) to shrink toward the inner periphery of the support cylinder (1).

6. The simulation detection device for an automatic blood pressure monitor according to claim 1, characterized in that: Support rings (9) are provided on the outer periphery of both ends of the support tube (1), and a support spring (91) is provided between the support ring (9) and the limiting sleeve (3). The support spring (91) is pressed between the support ring (9) and the limiting sleeve (3) to apply an elastic force to the limiting sleeve (3) in the direction of the annular airbag (2).

7. A method for detecting an automatic blood pressure monitor, characterized in that: The detection is performed using a simulation detection device as described in any one of claims 1 to 6; the simulation detection device is placed inside the inner periphery of the blood pressure cuff so that the blood pressure cuff covers the outer periphery of the annular airbag (2); when the blood pressure monitor is pressurized, the pressure inside the annular airbag (2) rises synchronously, and a blood pressure simulation detector (4) connected to the annular airbag (2) provides a simulated arterial blood pressure pulsation signal, and the blood pressure of the simulation detection device is measured by an automatic blood pressure monitor to obtain detection data.

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