A blood pressure monitor

Abstract

The present invention belongs to the technical field of medical devices, and in particular to a blood pressure monitor, comprising a base, a sleeve for being put on an arm, a blood pressure cuff arranged in the inner cavity of the sleeve, and a protective film supplying mechanism arranged in the electrical installation cavity and used for supplying a protective film to the C-shaped cavity inside the blood pressure cuff, and a protective film spreading mechanism arranged on one side of the sleeve and used for stretching the protective film from the protective film supplying mechanism in the C-shaped cavity to form a recess; the sleeve comprises a lower half shell and an upper half shell which are enclosed to form a cylindrical structure, both the upper half shell and the lower half shell are longitudinally rotatably connected to the base, and a winding mechanism for winding the end of the protective film is provided in the upper half shell; the present invention can realize continuous protective film replacement operation through the cooperation of the protective film supplying mechanism, the protective film spreading mechanism and the openable upper half shell, and a new protective film part can be replaced for each use, which greatly reduces the risk of infection between each patient.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a blood pressure monitor. Background Art

[0002] Desktop blood pressure monitors are among the most frequently used medical devices in hospitals. These monitors are bulky, and their cuffs are prone to bacterial contamination. In practice, a blood pressure monitor and its cuff are repeatedly used, and the bacterial colonies carried by the cuff can increase with frequency and duration of use.

[0003] Existing cuffs are difficult to remove and have many wrinkles. Moreover, the cuff of the blood pressure monitor comes into direct contact with the patient's skin and is reused, which poses a potential risk of transmitting infectious pathogens. Summary of the Invention

[0004] The object of the present invention is to provide a blood pressure monitor to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a blood pressure monitor, comprising a base, the interior of which is provided with an electrical installation cavity;

[0006] Also included is a cuff for being placed on an arm when measuring a person's blood pressure;

[0007] Also included is a blood pressure cuff, which is disposed in the inner cavity of the sleeve and is used to attach the blood pressure detection sensor on the inner side wall thereof to the arm when inflated and pressurized;

[0008] It also includes a protective film supply mechanism, which is arranged in the electrical installation cavity and is used to supply a protective film to the C-shaped cavity inside the blood pressure cuff;

[0009] It also includes a protective film spreading mechanism, which is provided on one side of the sleeve and is used to spread the protective film from the protective film supply mechanism in the C-shaped cavity to form a recessed portion, wherein the recessed portion is used to accommodate the arm;

[0010] Among them, the sleeve includes a lower half shell and an upper half shell that are enclosed to form a cylindrical structure. The upper half shell and the lower half shell are both longitudinally rotatably connected to the base. A winding mechanism for winding up the end of the protective film is provided in the upper half shell; the upper half shell and the base are respectively provided with an inlet and an outlet for the protective film to pass through.

[0011] The blood pressure monitor described in the present invention is characterized in that the protective film spreading mechanism is located on the side of the upper half shell away from its rotating axis, the base is provided with a mounting position for installing the protective film spreading mechanism, the upper half shell is provided with a avoidance groove for avoiding the protective film spreading mechanism, the entrance is located on the bottom surface of the avoidance groove, and when installed in place, the end of the upper half shell away from its rotating axis is affixed to the mounting position.

[0012] The blood pressure monitor described in the present invention, wherein the protective film spreading mechanism includes a boss protruding upward on the mounting position, and an extension tube extending into the electrical installation cavity; the extension tube is integrally arranged at the lower end of the boss, and an air duct connected to the extension tube is provided in the boss, and the air outlet of the air duct faces the rotating shaft of the upper half shell; an air supply mechanism for supplying air to the extension tube is also provided in the electrical installation cavity.

[0013] The blood pressure monitor described in the present invention is characterized in that a mounting plate is provided on the base along the axial direction of the upper half shell, the upper surface of the mounting plate forms a mounting position, a mounting window is provided on the base corresponding to the mounting plate, the mounting window passes through the base at one end facing the lower half shell, the boss and the extension tube are respectively provided on the upper and lower surfaces of the mounting plate, and a groove is provided on one side wall of the mounting plate facing the rotating shaft of the upper half shell, and the inner wall of the groove and the inner wall of the mounting window enclose each other to form the outlet.

[0014] The blood pressure monitor described in the present invention, wherein the air supply mechanism includes a fan, an expansion cavity connected to the air outlet of the fan, and an anti-static ion generator arranged inside the expansion cavity; the outlet end of the expansion cavity is connected to the extension tube through a connecting tube.

[0015] The blood pressure monitor described in the present invention is characterized in that the connecting tube is a metal tube and is parallel to the rotating axis of the upper half shell, the extension tube is vertically connected to the connecting tube, and a support roller group supporting the protective film is provided in parallel on the lower bottom surface of the lower half shell. When assembled in place, the protective film on one side of the discharge end of the support roller group is parallel to the connecting tube.

[0016] The blood pressure monitor of the present invention, wherein an upward-emitting ultraviolet lamp is provided in the electrical installation cavity on the side of the support roller group facing away from the lower half shell.

[0017] The blood pressure monitor described in the present invention, wherein the protective film supply mechanism includes a protective film roller parallel to the rotating shaft of the lower half shell and located below it, and a driving motor that drives the protective film roller to rotate on a fixed axis.

[0018] The blood pressure monitor described in the present invention has a storage chamber inside the upper half shell, and the winding mechanism includes two winding rollers parallel to the rotating axis of the upper half shell and located at one end of the storage chamber close to the installation position, and a winding motor that drives the winding rollers to rotate; the side walls of the two winding rollers are parallel to each other, and an annular rib is provided on the inner side wall of the storage chamber corresponding to the entrance, and the discharge port of the annular rib is opposite to the position tangent to the two winding rollers and is parallel to each other.

[0019] The blood pressure monitor of the present invention is characterized in that a window is provided on the convex side wall of the upper half shell, and a flip cover is provided to seal the window; the flip cover is connected to the upper half shell in a coaxial rotation manner.

[0020] Compared with the prior art, the present invention has the following beneficial effects: the present invention can realize continuous protective film replacement operation through the cooperation of the protective film supply mechanism, the protective film spreading mechanism and the openable upper half shell. A new protective film part can be replaced for each use, and the part after use is recovered through the winding mechanism to update the protective film inside the C-shaped cavity, avoiding direct contact between the blood pressure cuff and the patient's arm, thereby greatly reducing the risk of infection between each patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a top view of the present invention.

[0023] Figure 2 for Figure 1 AA cross-sectional view.

[0024] Figure 3 for Figure 2 A magnified view of the local structure.

[0025] Figure 4 for Figure 2 The middle cover is opened.

[0026] Figure 5 for Figure 2 Diagram of the state with the upper and middle shell opened.

[0027] Figure 6 It is a top view of the present invention. DETAILED DESCRIPTION

[0028] The terms "first," "second," "third," and "fourth," etc., in the specification, claims, and accompanying drawings of the present invention are used to distinguish between different items, not to describe a specific order. Furthermore, the terms "including," "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements, but may optionally include steps or elements not listed, or may optionally include other steps or elements inherent to the process, method, product, or apparatus.

[0029] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute a separate or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0030] "Multiple" refers to two or more. "And / or" describes the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0031] Moreover, the terms "up, down, left, right, upper end, lower end, longitudinal" and the like indicating directions are all based on the posture and position of the device or apparatus described in this solution during normal use.

[0032] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the following will be a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work shall fall within the scope of protection of the present invention.

[0033] This embodiment discloses Figures 1 to 6 The blood pressure monitor shown includes a base 10 with an electrical installation cavity 101 inside. The base 10 is a conventional rectangular structure on the market, generally consisting of a bottom plate and an upper cover. The internal electrical installation cavity 101 is used to install various components, such as a receipt printer 20 and a control board 30.

[0034] The blood pressure monitor also includes a sleeve 40, which is used for the patient to insert his hand into and put on the arm when measuring the blood pressure of the human body. The sleeve 40 is generally arranged on the right side of the top of the base 10, and a display screen 50 is generally arranged on the left side of the top of the base 10 for the patient to observe the measurement value after the measurement.

[0035] The blood pressure monitor also includes a blood pressure cuff 60, which is arranged in the inner cavity of the sleeve 40 by conventional means such as Velcro or adhesive, and is used to make the blood pressure detection sensor on the inner side wall fit on the arm when inflated and pressurized, thereby realizing blood pressure measurement of the patient; in addition, in order to ensure the accuracy of the patient's measurement posture, a diagonal support plate 70 is provided at the top of the base 10 and on the back side of the sleeve 40 for the patient's forearm to rest against, and a positioning protrusion 61 is provided at the rear end of the inner side wall of the blood pressure cuff 60 corresponding to the patient's elbow fossa for positioning, and the density of the blood pressure measurement sensors on the positioning protrusion 61 is large. The density at other positions is compared, so that the unique pulse and blood pressure of the elbow fossa are detected in advance by the blood pressure measurement sensor on the positioning protrusion 61 before measurement, and then the control system is used to determine whether the patient's arm posture is correct. Generally, when the patient's palm is facing down, the radius and ulna are staggered, and the brachioradialis muscle, the extensor carpi radialis longus muscle and the pronator teres muscle are deflected. This deflected position will cause the pulse and blood pressure of the elbow fossa to change, which is different from the value when the palm is facing up. Therefore, the specific positioning protrusion 61 is used in conjunction with the speaker of the control system to accurately identify and remind the patient of any posture errors to ensure the accuracy of the measurement results.

[0036] The blood pressure monitor also includes a protective film supply mechanism 80, which is arranged in the electrical installation cavity 101 and is used to supply a protective film 500 to the C-shaped cavity 62 inside the blood pressure cuff 60, so that when the patient places his arm in the C-shaped cavity 62, the arm and the blood pressure cuff 60 are isolated by the protective film 500; wherein, the protective film 500 is generally a material roller structure, and the material of the protective film 500 can be a thin and relatively strong plastic film, of course, other films can also be used.

[0037] The blood pressure monitor also includes a protective film spreading mechanism 90, which is arranged on one side of the sleeve 40 and is used to expand the protective film from the protective film supply mechanism 80 in the C-shaped cavity 62 to form a recess 501. The recess 501 is used to accommodate the arm to guide the patient to place his arm and avoid misoperation by patients using it for the first time.

[0038] Among them, the sleeve 40 includes a lower half shell 41 and an upper half shell 42 that are enclosed to form a cylindrical structure. The upper half shell 42 and the lower half shell 41 are both longitudinally rotatably connected to the base 10 through the rotating shaft 100. Specifically, the two ends of the blood pressure cuff 60 are respectively connected to the inner walls of the upper half shell 42 and the lower half shell 41. When the upper half shell 42 is opened, it will drive the protective film to stretch. When the upper half shell 42 is closed, the stretched protective film will wrap around to form a closed C-shaped structure that wraps around the patient's arm, thereby isolating the skin from the blood pressure cuff 60. In order to improve the degree of automation of the instrument and facilitate use, an additional drive motor can be provided to drive the opening and closing of the upper half shell 42, and this motor can also be used to keep the upper half shell 42 fastened to the lower half shell 41 to ensure the integrity of the blood pressure measurement process.

[0039] In addition, in order to facilitate the fixation of the sleeve 40, a vertical plate 110 is integrally provided on the left and right sides of the sleeve 40 on the upper surface of the base 10, and the plate 110 is arranged along the front-to-back direction; wherein, the rotating shafts 100 of the upper half shell 42 and the lower half shell 41 are both arranged at the upper end of the plate 110 on the left, and the lower half shell 41 is located between the two plates 110 and the front and rear ends of the two plates 110 are both closed to form a rectangular structure with an open upper end. When the upper half shell 42 is closed, its cover is buckled on the upper end surface of the rectangular structure.

[0040] Furthermore, a winding mechanism 120 for winding up the end of the protective film is provided in the upper half shell 42, so as to roll up the used portion of the protective film into the interior of the upper half shell 42 after the measurement of the previous patient, and pull out the new portion of the protective film from the protective film supply mechanism 80 and spread it again in the C-shaped cavity 62 through the protective film spreading mechanism.

[0041] In it, an entrance 421 and an outlet 422 for the protective film 500 to pass through are respectively provided on the upper half shell 42 and the base 10. The outlet 422 and the entrance 421 are both rectangular and designed to be narrow in width, which can ensure that the protective film can pass normally and prevent external foreign objects from entering the base 10 and the upper half shell 42.

[0042] Before measurement, the upper half shell 42 drives the upper end of the blood pressure cuff 60 to open synchronously, and the end of the protective film passes through the outlet 422, and passes through the interior of the upper half shell 42 through the inlet 421 and is rolled up to a certain length through the rolling mechanism 120, so that the end of the protective film is fixed. When measurement is needed, the upper half shell 42 is opened again. At this time, the opened upper half shell 42 drives the end of the protective film to stretch, and then the stretched protective film can be used to form a certain recess 501 between the upper half shell 42 and the lower half shell 41 through the protective film spreading mechanism, prompting the patient to place the arm corresponding to the recess 501 between the lower half shell 41 and the upper half shell 42. After it is in place, the upper half shell 42 is reset and closed to form a cylindrical structure with the lower half shell 41. At this time, the stretched protective film also presents a closed C-shaped structure and is wrapped around the patient's arm. At this time, the blood pressure cuff 60 is inflated and pressurized to place the inner blood pressure detection sensor close to the arm for blood pressure measurement. When the measurement is completed, the upper half shell 42 is opened, and the user moves out his arm, and then the winding mechanism 120 winds the used part of the protective film into the upper half shell 42, thereby preparing for the next measurement.

[0043] Among them, the opening and closing of the upper shell 42 can be completed by the control system. As for the opening operation of the upper shell 42, it can be opened by the patient operating the switch of the instrument or by setting a sensor for sensing the human body on the front side wall of the base 10. The closing and maintaining of the upper shell 42 can be achieved by controlling the driving motor through the control system. This belongs to conventional existing technology and will not be elaborated here.

[0044] In this embodiment, the protective film spreading mechanism 90 is located on the side of the upper half shell 42 away from its rotation axis, so that after the upper half shell 42 is opened, the protective film is located in front of the patient's moving arm, making the detection operation more convenient and improving the humanized design; specifically, a mounting position 102 for installing the protective film spreading mechanism is provided on the base 10, and specifically, the mounting position 102 is specifically located on the upper end surface of the right side plate 110; the upper half shell 42 is provided with an avoidance groove 423 for avoiding the protective film spreading mechanism, and the entrance 421 is located on the bottom surface of the avoidance groove 423. When installed in place, the end of the upper half shell 42 away from its rotation axis is attached to the mounting position 102, wherein the avoidance groove 423 can also play an additional role in assisting the positioning of the upper half shell 42.

[0045] Furthermore, in order to ensure that the load torque of the motor driving the upper half shell 42 to rotate is reduced during the measurement process, a lock 140 can be set inside the base 10, and the upper half shell 42 can be locked to the lower half shell 41 when closed through the lock 140, wherein the lock 140 can be manual, such as a conventional latch structure or a pin structure, and of course it can also be electric. If an electric type is adopted, the driving motor of the lock is connected to the control system. The implementation principle of this technology is existing technology, and it can be implemented by common electric door locks on the market and in daily life, so I will not go into details here.

[0046] In this embodiment, the protective film spreading mechanism 90 includes a boss 91 protruding upward on the mounting position 102, and an extension tube 92 extending into the electrical installation cavity 101; specifically, the boss 91 is preferably designed to be long and parallel to the rotation axis of the upper half shell 42, and correspondingly, the avoidance groove 423 is also long; wherein, the extension tube 92 is integrally provided at the lower end of the boss 91 and a plurality of extension tubes are evenly provided along the length direction of the boss 91, and an air duct 910 is provided in the boss 91 and is connected to the internal channel of the extension tube 92, and the air outlet of the air duct 910 faces the upper half shell 4 2, specifically in a tilted downward state; further, an air supply mechanism 150 for supplying air to the extension tube 92 is provided in the electrical installation cavity 101. During the opening process of the upper half shell 42, the air supply mechanism 150 continuously supplies high-speed airflow to the airway 910, so that the middle part of the stretched protective film tends to stick to the inner concave surface of the blood pressure cuff 60, thereby forming a concave portion to remind the patient to place his arm. By spreading the protective film with airflow, the complexity and volume of the overall structure can be greatly simplified, and the spreading process will not affect the patient's arm placement operation.

[0047] Among them, a mounting plate 160 is provided on the base 10 along the axial direction of the upper half shell 42. Specifically, the mounting plate 160 is located on the upper end surface of the right plate body 110; wherein, the upper surface of the mounting plate 160 forms a mounting position 102, and the base 10 is specifically on the upper end surface of the right plate body 110, and a mounting window 170 is provided corresponding to the mounting plate 160. The end of the mounting window 170 facing the lower half shell 41 passes through the base 10, specifically through the left side wall of the right plate body 110; the boss 91 and the extension tube 92 are respectively provided on the upper and lower surfaces of the mounting plate 160, and the mounting plate 160 faces A groove 161 is provided on one side wall of the rotating shaft of the upper half shell 42, and the inner wall of the groove 161 and the inner wall of the installation window 170 enclose an outlet 422, so that the outlet 422 is located below the air outlet of the airway 910, so that after the upper half shell 42 drives the protective film to stretch, the air flow ejected from the air outlet spreads the protective film toward the direction of the rotating shaft of the upper half shell 42 and sticks to the inner concave surface of the blood pressure cuff 60 to form a recess, and the structural design of the groove 161 running through the left side of the right plate 110 can facilitate the replacement of the material roller of the new protective film after the lower half shell 41 is opened.

[0048] Furthermore, the air supply mechanism 150 includes a fan 151, an expansion cavity 152 connected to the air outlet of the fan 151, and an anti-static ion generator (not shown) arranged inside the expansion cavity 152; wherein, the anti-static ion generator can be directly purchased as a ready-made module on the market, and the outlet 422 end of the expansion cavity 152 is connected to the extension tube 92 through the connecting tube 15a; further, the connecting tube 15a is a metal tube and is parallel to the rotating shaft of the upper half shell 42, the extension tube 92 is vertically connected to the connecting tube 15a, and a support roller group supporting the protective film 500 is provided in parallel on the lower bottom surface of the lower half shell 41 180, when assembled in place, the protective film 500 on one side of the discharge end of the support roller group 180 is parallel to the connecting tube 15a; in the process of the upper half shell 42 opening and driving the protective film 500 to extend, since the plastic film-type protective film will generate static electricity when it is unfolded, in order to avoid the adverse effects of the static electricity, the cooperation of the fan 151, the static electricity generator and the connecting tube 15a can ensure that the extended protective film only carries a very small amount of static electricity or is not charged, so as to improve the user experience during the measurement process and avoid the protective film from discharging and irritating the patient's arm or being adsorbed on the patient's arm due to static electricity.

[0049] In addition, in order to further improve the adaptability and user experience of the instrument, a heating wire can be added inside the expansion cavity 152 to heat the extended protective film in cold weather so that its temperature is closer to the comfortable temperature of the human body.

[0050] In this embodiment, an upward-emitting ultraviolet lamp 190 is provided in the electrical installation cavity 101 on the side of the support roller group 180 facing away from the lower half shell 41. The ultraviolet lamp 190 can be used to sterilize and disinfect the parts of the protective film that are exposed to the electrical installation cavity 101 for a long time, and can also be used to sterilize and disinfect the parts where the protective film is retracted.

[0051] In this embodiment, the protective film supply mechanism 80 includes a protective film roller 81 parallel to the rotating shaft 100 of the lower half shell 41 and located below the lower half shell 41, and a drive motor (not shown) that drives the protective film roller 81 to rotate on a fixed axis; the drive motor is connected to the control system to facilitate the coordinated control of the control system; further, in order to facilitate the opening of the lower half shell 41 and the replacement of the new protective film, the protective film roller 81 is connected to the material axis of the protective film material roller in a detachable connection manner, and the specific connection method can be coaxial magnetic attraction, coaxial sleeve arrangement through a sleeve, or coaxial locking through overlapping screws.

[0052] In this embodiment, the interior of the upper half shell 42 has a storage chamber 424, and the winding mechanism 120 includes two winding rollers 121 parallel to the rotating axis of the upper half shell 42 and located at one end of the storage chamber 424 close to the mounting position 102, and a winding motor 122 driving the winding rollers 121 to rotate; the side walls of the two winding rollers 121 are parallel to each other, and an annular rib 200 is provided on the inner wall of the storage chamber 424 corresponding to the entrance 421, and the discharge port of the annular rib 200 is opposite to the position tangent to the two winding rollers and is parallel to each other. Through the cooperation of the two winding rollers 121, the used part of the protective film can be stored in the storage chamber 424, wherein the structural design of the annular rib 200 can prevent the protective film from being driven by the winding roller to pass out in the opposite direction from the entrance 421.

[0053] In this embodiment, a window 425 and a flip cover 426 for sealing the window 425 are provided on the convex side wall of the upper half shell 42; the flip cover 426 is connected to the upper half shell 42 for coaxial rotation. When the entire protective film material roller is used up, the used protective film can be removed by opening the flip cover 426.

[0054] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A blood pressure monitor, characterized in that: It includes a base with an electrical installation cavity provided therein; Also included is a cuff for being placed on an arm when measuring a person's blood pressure; Also included is a blood pressure cuff, which is disposed in the inner cavity of the sleeve and is used to attach the blood pressure detection sensor on the inner side wall thereof to the arm when inflated and pressurized; It also includes a protective film supply mechanism, which is arranged in the electrical installation cavity and is used to supply a protective film to the C-shaped cavity inside the blood pressure cuff; It also includes a protective film spreading mechanism, which is provided on one side of the sleeve and is used to spread the protective film from the protective film supply mechanism in the C-shaped cavity to form a recessed portion, wherein the recessed portion is used to accommodate the arm; The sleeve comprises a lower half shell and an upper half shell that enclose a cylindrical structure, the upper half shell and the lower half shell are both longitudinally rotatably connected to the base, and a reeling mechanism for reeling in the end of the protective film is provided in the upper half shell; the upper half shell and the base are both provided with an inlet and an outlet for the protective film to pass through; The protective film spreading mechanism is located on a side of the upper half shell away from its rotation axis. The base is provided with a mounting position for installing the protective film spreading mechanism. The upper half shell is provided with an avoidance groove for avoiding the protective film spreading mechanism. The inlet is located on the bottom surface of the avoidance groove. When installed in place, the end of the upper half shell away from its rotation axis is in contact with the mounting position. The protective film spreading mechanism includes a boss protruding upward on the mounting position, and an extension tube extending into the electrical installation cavity; the extension tube is integrally provided at the lower end of the boss, an air duct communicating with the extension tube is provided in the boss, and an air outlet of the air duct faces the rotating shaft of the upper half shell; an air supply mechanism for supplying air to the extension tube is also provided in the electrical installation cavity; A mounting plate is provided on the base along the axial direction of the upper half shell, a mounting position is formed on the upper surface of the mounting plate, a mounting window is provided on the base corresponding to the mounting plate, and the mounting window passes through the base at one end facing the lower half shell, the boss and the extension tube are respectively provided on the upper and lower surfaces of the mounting plate, and a groove is provided on one side wall of the mounting plate facing the rotating shaft of the upper half shell, and the inner wall of the groove and the inner wall of the mounting window enclose the outlet; The air supply mechanism includes a blower, an expansion cavity connected to the air outlet of the blower, and an anti-static ion generator provided inside the expansion cavity; the outlet end of the expansion cavity is connected to the extension tube through a connecting pipe; The connecting tube is a metal tube and is parallel to the rotating axis of the upper half shell. The extension tube is vertically connected to the connecting tube. A support roller group supporting the protective film is provided in parallel on the lower bottom surface of the lower half shell. When assembled in place, the protective film on the discharge end side of the support roller group is parallel to the connecting tube.

2. The blood pressure monitor according to claim 1, wherein: An upward-emitting ultraviolet lamp is provided in the electrical installation cavity on a side of the support roller group facing away from the lower half shell.

3. The blood pressure monitor according to any one of claims 1 to 2, characterized in that: The protective film supply mechanism includes a protective film roller parallel to the rotating shaft of the lower half shell and located below it, and a driving motor that drives the protective film roller to rotate on a fixed axis.

4. The blood pressure monitor according to claim 1, wherein: The interior of the upper half shell has a storage cavity, and the winding mechanism includes two winding rollers parallel to the rotating axis of the upper half shell and located at one end of the storage cavity close to the installation position, and a winding motor driving the winding rollers to rotate; the side walls of the two winding rollers are parallel to each other, and an annular rib is provided on the inner side wall of the storage cavity corresponding to the inlet, and the discharge port of the annular rib is opposite to the position tangent to the two winding rollers and is parallel to each other.

5. The blood pressure monitor according to claim 4, wherein: A window is provided on the convex side wall of the upper half shell, and a flip cover is provided to seal the window; the flip cover is connected to the upper half shell by coaxial rotation.

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