CN210204716U

CN210204716U - Blood pressure measuring equipment

Info

Publication number: CN210204716U
Application number: CN201920122976.4U
Authority: CN
Inventors: Nianping Zhang; 章年平; Dacheng Gong; 龚大成; Zhiming Huang; 黄智明
Original assignee: Shenzhen Gold Hundred Million Supreme Being's Armarium Ltd Cos
Current assignee: Shenzhen Gold Hundred Million Supreme Being's Armarium Ltd Cos; Shenzhen Kingyield Tech Co Ltd
Priority date: 2019-01-24
Filing date: 2019-01-24
Publication date: 2020-03-31
Anticipated expiration: 2029-01-24

Abstract

The application discloses blood pressure measuring equipment has the gas passage who link up on its casing, and gas passage has first passageway and second passageway, and the area of second passageway gas permeable cross section is greater than the area of first passageway gas permeable cross section. The first channel has a smaller inner diameter, which can prevent sharp objects from being inserted into the gas channel and avoid damaging the components in the shell. And the waterproof breathable film is arranged in the second channel and seals the second channel. This waterproof ventilated membrane can prevent liquid or solid foreign matter to get into the installation cavity in the casing, eliminates the potential safety hazard, promotes blood pressure measuring apparatu's security performance. Simultaneously, this second passageway has bigger ventilative cross-section, can promote the effective area of waterproof ventilated membrane, increases the ventilative volume of waterproof ventilated membrane to make the ventilative volume of gas passage can satisfy the gas flow demand of blood pressure measuring equipment during operation.

Description

Blood pressure measuring equipment

Technical Field

The application relates to the field of medical equipment, in particular to blood pressure measuring equipment.

Background

Miniaturization and wearability are one trend in the development of blood pressure measuring devices. Generally, a wearable blood pressure measuring device is provided with an air hole or an air inlet gap directly in a shell, and an air pump absorbs external air from the air hole or the gap into the air pump. However, the wearable blood pressure measuring device is worn on the body of the user for a long time, the user sometimes contacts liquid water or water vapor during the life, and the user himself/herself inevitably generates sweat. When the blood pressure measuring equipment sucks in external air, liquid water, water vapor and sweat can easily enter the equipment, so that the equipment is broken down and damaged, and even fire and explosion can be caused in serious conditions, and the life safety of a user is threatened.

The intelligent watch with the function of measuring the air pressure (or measuring the altitude) is usually provided with a tiny through hole on the shell, and then the tiny through hole is blocked by the waterproof breathable film so as to achieve the purpose of balancing the air pressure inside and outside the shell. In order to take care of the beauty and avoid damage to components caused by the insertion of sharp objects into the smart watch from the small holes, the small holes in the smart watch are all made very small. However, wearable blood pressure measurement equipment needs to flow through a large amount of gas in a short time in the process of measuring blood pressure, so that the air permeability of the structure of the waterproof small hole for balancing the air pressure inside and outside the shell of the intelligent watch can not meet the requirement of the blood pressure measurement equipment.

Disclosure of Invention

The application provides a blood pressure measuring equipment for make a large amount of gas can pass in and out the casing, can reduce liquid or solid foreign matter again simultaneously and get into the inside possibility of blood pressure measuring equipment from the gas pocket.

An embodiment of the present application provides a blood pressure measuring apparatus, including:

the gas channel is at least provided with a section of first channel and a section of second channel, the first channel is communicated with the second channel in a sealing way, and the area of the ventilation section of the second channel is larger than that of the ventilation section of the first channel;

the waterproof breathable film is arranged in the second channel and seals the second channel;

the gas charging and discharging device is arranged in the mounting cavity, and a gas inlet of the gas charging and discharging device is communicated with the gas channel so as to suck gas from the gas channel;

and the air bag is communicated with the air charging and discharging device and is used for charging and discharging air.

In one embodiment, the effective area of the waterproof breathable film is larger than or equal to the area of the breathable cross section of the second channel.

In one embodiment, the first channel is located outside the gas channel and the second channel is located inside the gas channel.

In one embodiment, the second channel is communicated with the installation cavity, and the waterproof and breathable film is covered on an opening of the second channel, which is arranged towards the installation cavity.

In one embodiment, the first channel is located inside the gas channel and the second channel is located outside the gas channel.

In one embodiment, the second passage communicates with the outside of the housing, and the waterproof and breathable film covers an opening of the second passage provided toward the outside of the housing.

In one embodiment, the housing includes a main housing and a cover plate, the main housing encloses the installation cavity, the second channel is disposed on a wall of the main housing, the cover plate is installed on the main housing and covers the second channel, and the first channel is disposed on the cover plate in a penetrating manner.

In one embodiment, the gas channel further comprises a third channel, the third channel is communicated between the first channel and the second channel, the second channel and the third channel are arranged on the main shell together, the channel wall at the joint of the third channel and the second channel is in a step-shaped structure, and the waterproof breathable film is fixedly arranged on the step-shaped structure.

In one embodiment, the first channel is opened in the middle of the cover plate.

In one embodiment, the first channel and the second channel form an included angle a, and a value range of the included angle a is as follows: a is more than 0 degree and less than 180 degrees.

In one embodiment, the value range of the included angle a is as follows: a is more than 0 degree and less than or equal to 90 degrees.

In one embodiment, the housing includes a main housing and a cover plate, the main housing encloses the installation cavity, the second channel is disposed on a wall of the main housing, the cover plate is installed on the main housing, and the cover plate and the main housing enclose to form a first channel.

In one embodiment, the gas channel is provided with at least two separately arranged first channels, and all the first channels are converged into the same second channel so as to improve the air intake amount of the first channels.

In one embodiment, the housing has a recess as the second channel, the waterproof and breathable film covers the opening of the recess, and the first channel is arranged on the wall of the recess in a penetrating manner.

In one embodiment, the housing comprises an upper cover and a lower cover, the upper cover and the lower cover enclose to form an installation cavity, the upper cover and the lower cover are detachably connected, and the pit is formed in the lower cover.

In one embodiment, the outer wall of one side of the shell is provided with a concave containing groove for containing the air bag.

In one embodiment, the first channel and the second channel communicate to form a tapered gas channel.

In one embodiment, the housing comprises a main housing and a vent block, the main housing is provided with a mounting opening, the vent block is mounted in the mounting opening in a sealing mode, and the gas channel is arranged on the vent block in a penetrating mode.

In one embodiment, the housing has a fastening device for fastening the housing to a person or to an item of clothing.

In one embodiment, the fixing device is a fixing band, and two ends of the fixing band are connected with the shell to form an annular structure so as to be sleeved on the corresponding wearing objects.

In one embodiment, the blood pressure measuring device is a watch-type blood pressure measuring instrument, which also has a watchband mounted on the housing.

The beneficial effect of this application:

the application provides a blood pressure measuring equipment, has the gas passage who link up on its casing, and gas passage has first passageway and second passageway, and the area of second passageway gas permeable cross section is greater than the area of first passageway gas permeable cross section. The first channel has a smaller inner diameter, which can prevent sharp objects from being inserted into the gas channel and avoid damaging the components in the shell. And the waterproof breathable film is arranged in the second channel and seals the second channel. This waterproof ventilated membrane can prevent liquid or solid foreign matter to get into the installation cavity in the casing, eliminates the potential safety hazard, promotes blood pressure measuring apparatu's security performance. Simultaneously, this second passageway has bigger ventilative cross-section, can promote the effective area of waterproof ventilated membrane, increases the ventilative volume of waterproof ventilated membrane to make the ventilative volume of gas passage can satisfy the gas flow demand of blood pressure measuring equipment during operation.

Drawings

FIG. 1 is a schematic view of the air intake state of a blood pressure measuring device according to a first embodiment of the present application;

FIG. 2 is a schematic view of the air outlet state of the blood pressure measuring device according to the first embodiment of the present application;

FIG. 3 is a schematic view of the air intake state of a blood pressure measuring device according to a second embodiment of the present application;

FIG. 4 is a schematic view of the air outlet state of a blood pressure measuring device according to a second embodiment of the present application;

FIG. 5 is a schematic view showing an intake state of a blood pressure measuring apparatus according to a third embodiment of the present application;

FIG. 6 is a schematic view of the air outlet state of a blood pressure measuring device according to a third embodiment of the present application;

FIG. 7 is a schematic view showing an intake state of a blood pressure measuring device according to a fourth embodiment of the present application;

FIG. 8 is a schematic view of the air outlet state of a blood pressure measuring device according to a fourth embodiment of the present application;

FIGS. 9a and 9b are schematic views of a blood pressure measuring device with a securing strap according to an embodiment of the present application;

FIG. 10 is a schematic view showing an internal air intake state of the blood pressure measuring device shown in FIGS. 9a and 9 b;

FIG. 11 is a schematic view of the internal air bleeding state of the blood pressure measuring device shown in FIGS. 9a and 9 b;

FIG. 12 is a schematic view of the blood pressure measuring device of FIGS. 9a and 9b mounted on a watch;

FIG. 13 is a schematic view of the blood pressure measuring device of FIGS. 9a and 9b worn on a user's wrist;

FIG. 14 is a schematic structural diagram of a wrist-watch type blood pressure measuring device according to an embodiment of the present application;

FIG. 15 is an exploded view of a wrist-watch blood pressure monitor according to an embodiment of the present application;

FIG. 16 is a schematic view of a lower cover according to an embodiment of the present application;

fig. 17 is a sectional view taken along a-a in fig. 16.

FIG. 18 is a schematic structural view of a blood pressure measuring device according to a fifth embodiment of the present application;

FIG. 19 is a schematic view showing an intake state of a blood pressure measuring device according to a fifth embodiment of the present application;

FIG. 20 is a schematic view of an air outlet state of a blood pressure measuring device according to a fifth embodiment of the present application;

FIG. 21 is a schematic structural view of a blood pressure measuring device according to a sixth embodiment of the present application;

FIG. 22 is a schematic view of a vent block venting during operation according to a seventh embodiment of the present application;

FIG. 23 is a schematic view of a ventilation block according to a sixth embodiment of the present application.

Detailed Description

The present application will now be described in further detail by way of the detailed description and with reference to the accompanying drawings, in which like elements in different embodiments are referred to by like reference numerals. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.

Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).

The present embodiment provides a blood pressure measuring device for measuring blood pressure of a living body.

Referring to fig. 1 and 2, the blood pressure measuring device includes a housing 100, a waterproof breathable membrane 300, a gas charging and discharging device 400 and a gas bag 600, the housing 100 encloses to form an installation cavity, the wall of the installation cavity has at least one through gas channel 200, the gas channel 200 has at least one section of a first channel 210 and a section of a second channel 220, the first channel 210 is in sealed communication with the second channel 220, and the area of the breathable cross section of the second channel 220 is larger than that of the breathable cross section of the first channel 210. The housing 100 may be an integrally formed component or may be formed by combining multiple components. The gas channel 200 may be a complete channel, or may be formed by a combination of multiple channels or multiple components.

The waterproof and breathable film 300 is disposed in the second channel 220 and seals the second channel 220. The gas charge and discharge device 400 is installed in the installation cavity, and a gas inlet of the gas charge and discharge device 400 is communicated with the gas passage 200 so as to suck gas from the gas passage 200. The air bag 600 is communicated with the air charging and discharging device 400 for charging and discharging air.

Specifically, the gas permeable section refers to a section of the gas passage 200 in a direction perpendicular to the gas flow direction, and a sectional area of any gas permeable section of the gas passage 200 is an effective area where the gas passage 200 can permeate gas. The gas charging and discharging device 400 may comprise an inflation device and a deflation device which are independent of each other, for example, the inflation device may be a gas pump, the deflation device may be a passage with a deflation valve, and the gas charging and discharging device 400 may also be an integrated device with both inflation and deflation, for example, an integrated gas pump, etc. When the blood pressure measurement operation is performed, the gas charging and discharging device 400 sucks air from the gas passage 200, inflates the airbag 600 with the sucked air, and after the measurement is completed, the gas charging and discharging device 400 discharges the air in the airbag 600 through the gas passage 200, and returns the airbag 600 to the compressed state. In this embodiment, the gas channel 200 has both intake and exhaust functions. The direction indicated by the arrow a is the air flow direction in the air inlet state, and the direction indicated by the arrow b is the air flow direction in the air outlet state.

Of course, in some embodiments, the housing 100 may have a gas channel 200 for gas inlet and a gas channel 200 for gas outlet, respectively, and the two gas channels 200 are respectively communicated with the gas inlet and the gas outlet of the gas charging and discharging device 400.

The first passage 210 has a small inner diameter, so that the sharp object can be prevented from being inserted from the gas passage 200, and the damage of the components inside the housing 100 can be avoided. Can prevent liquid or solid foreign matter to get into the installation cavity in the casing 100 through gas passage 200 through waterproof ventilated membrane 300, solve gaseous easy problem of getting into blood pressure measuring equipment inside from gas passage 200, eliminate the potential safety hazard, promote blood pressure measuring apparatu's security performance. Set up waterproof ventilated membrane 300 in the bigger second passageway 220 of sectional area, promoted waterproof ventilated membrane 300's effective area, increase waterproof ventilated membrane 300's ventilative volume to make gas channel 200's ventilative volume can satisfy the gas circulation demand of blood pressure measuring equipment during operation.

The effective area of the waterproof breathable membrane 300 can be greater than or equal to the area of the breathable cross section of the second channel 220. Because the area of the breathable cross section of the second channel 220 is larger than that of the breathable cross section of the first channel 210, when the effective area of the waterproof breathable film 300 is larger than or equal to that of the breathable cross section of the second channel 220, the effective area of the waterproof breathable film 300 is equal to or larger than that of the breathable cross section of the second channel 220, the breathable amount of the waterproof breathable film 300 in unit time is more, and the requirement for the breathable amount of the gas channel 200 during the working of the blood pressure measuring equipment is favorably met.

Specifically, when the waterproof breathable membrane 300 is parallel to the breathable cross-section of the second channel 220, the effective area of the waterproof breathable membrane 300 is equal to the area of the breathable cross-section of the second channel 220. When the waterproof breathable film 300 has an uneven breathable surface, the effective area of the waterproof breathable film 300 is larger than the area of the second breathable cross-section.

Further, referring to fig. 1 and 2, in one embodiment, a sensor 500 is disposed in the mounting cavity, and the sensor 500 is in sealed communication with the airbag 600. Specifically, the sensor 500 is used to detect the pressure level of the bladder 600.

Further, referring to fig. 1 and 2, in one embodiment, the first channel 210 is located outside the gas channel 200, and the second channel 220 is located inside the gas channel 200.

Specifically, the outside of the gas channel 200 refers to a side of the gas channel 200 leading to the outside of the housing 100, and the inside of the gas channel 200 refers to a side of the gas channel 200 leading to the installation cavity.

Since the aperture of the first channel 210 is small, the first channel 210 is located outside the gas channel 200, which can prevent the sharp object from being inserted into the installation cavity from the gas channel 200 to damage the components, and prevent the sharp object from piercing the waterproof breathable membrane 300.

With continued reference to fig. 1 and 2, in an embodiment, the second channel 220 is communicated with the installation cavity, and the waterproof and breathable membrane 300 covers an opening of the second channel 220, which is disposed toward the installation cavity. Of course, as a modification of the present embodiment, the waterproof breathable film 300 may be provided inside the second passage 220.

Compare with setting up waterproof ventilated membrane 300 inside second passageway 220, cover waterproof ventilated membrane 300 at second passageway 220 towards the opening part that the installation cavity set up, more conveniently in staff's installation waterproof ventilated membrane 300.

Referring to fig. 3 and 4, in other embodiments, the first channel 210 is located inside the gas channel 200, and the second channel 220 is located outside the gas channel 200.

This waterproof ventilated membrane 300 prevents effectively that liquid or solid foreign matter from getting into first passageway 210 through second passageway 220, and when sharp-pointed object punctured waterproof ventilated membrane 300 of second passageway 220, first passageway 210 can prevent effectively that further to insert the installation intracavity, prevents sharp-pointed object damage parts in the installation intracavity.

The second passage 220 communicates with the outside of the housing 100, and the waterproof and breathable film 300 covers an opening of the second passage 220 provided toward the outside of the housing 100. The user easily touches the waterproof breathable film 300, and the waterproof breathable film 300 is convenient to replace for the user.

Referring to fig. 5 and 6, in one embodiment, the housing 100 includes a main housing 110 and a cover plate 120, and the main housing 110 encloses a mounting cavity. The second channel 220 is disposed on a wall of the main housing 110, and the cover plate 120 is mounted on the main housing 110 and covers the second channel 220. The first passage 210 is penetratingly disposed on the cap plate 120.

In the production process, the second channel 220 can be formed on the main housing 110, the first channel 210 is formed on the cover plate 120, and then the main housing 110 and the cover plate 120 are assembled, so that a channel with a variable aperture is processed in two steps, the processing difficulty is reduced, and the quality of the gas channel 200 is easy to control.

Of course, as a modification of the present embodiment, the second duct 220 may be provided in the cover plate 120, and the first duct 210 may be provided in the main casing 110.

Specifically, the cover plate 120 may be fixedly attached to the main housing 110 by means of bonding, welding, or the like, or may be detachably or removably attached to the main housing 110. For example, the cover plate 120 can be detachably assembled to the main housing 110 by a screw connection, a snap connection, a magnetic attraction fit, or other suitable means, so as to facilitate the installation and removal of the cover plate by a worker. Alternatively, the slide rail may be slidably attached to the main housing 110, and the rotation shaft may be rotatably attached to the main housing 110.

With continued reference to fig. 5 and 6, in one embodiment, the gas channel 200 further has a third channel 230, the third channel 230 communicating between the first channel 210 and the second channel 220. The second passage 220 and the third passage 230 are provided together on the main housing 110, and the passage wall where the third passage 230 and the second passage 220 are connected has a stepped structure. The waterproof breathable membrane 300 is fixedly mounted on the step-like structure.

When the waterproof ventilated membrane 300 is installed, the edge of the waterproof ventilated membrane 300 can be bonded on the step-shaped structure, and the installation process is convenient and fast. The waterproof breathable film 300 is at a distance from the openings on the inner and outer sides of the gas channel 200, so that the possibility that the waterproof breathable film 300 is accidentally punctured is reduced.

In other embodiments, the gas channel 200 may be provided in more segments, with a fourth channel, a fifth channel, or other suitable number of channels.

With continued reference to fig. 5 and 6, in one embodiment, the first channel 210 is formed in the middle of the cover plate 120. Of course, as a variation of the present embodiment, the first channel 210 may be disposed at the edge of the cover plate 120 or any other position, as long as the first channel 210 is communicated with the second channel 220.

Referring to fig. 7 and 8, in an embodiment, the first channel 210 and the second channel 220 form an included angle a, and the included angle a has a value range: a is more than 0 degree and less than 180 degrees.

When a rigid sharp object is inserted into one of first channel 210 and second channel 220, the sharp object cannot extend to the other of first channel 210 and second channel 220 due to the included angle, preventing the sharp object from being inserted into the mounting cavity and damaging the components in the mounting cavity.

In a more specific embodiment, the included angle a has a value range of: the acute angle is designed to further prevent others from inserting sharp objects into the housing 100, with a being greater than 0 and less than or equal to 90.

Specifically, the angle between the first channel 210 and the second channel 220 may be set to 90 °, 60 °, 45 °, or other degrees within the range. In one embodiment, as shown in fig. 7 and 8, the included angle a is 90 °.

With such an included angle a, in one embodiment, the first channel 210 may be directly disposed through the cover plate 120, as shown in fig. 5 and 6. In the production process, the second channel 220 can be formed on the main housing 110, the first channel 210 is formed on the cover plate 120, the main housing 110 and the cover plate 120 are assembled, the gas channel 200 with the bending angle inside is divided into two steps, the processing difficulty is reduced, and the quality of the gas channel 200 is easy to control. Of course, as a modification of the present embodiment, the second duct 220 may be provided in the cover plate 120, and the first duct 210 may be provided in the main casing 110. The cover plate 120 and the main housing 110 may be fixedly connected by bonding or welding, or may be detachably or removably connected.

Referring to fig. 7 and 8, in an embodiment, the housing 100 includes a main housing 110 and a cover plate 120, and the main housing 110 encloses a mounting cavity. The second channel 220 is disposed on a wall of the main housing 110, the cover plate 120 is mounted on the main housing 110, and the cover plate 120 and the main housing 110 enclose to form the first channel 210. The first channel 210 can be formed without forming a through hole in the cap plate 120, which simplifies the processing of the cap plate 120.

Referring to fig. 9a, in an embodiment, an outer wall of one side of the housing 100 has a concave receiving groove 800 for receiving the airbag 600. When the airbag 600 is in a compressed state, the airbag 600 is completely accommodated in the accommodating groove 800, and the accommodating groove 800 protects the airbag 600, thereby reducing the possibility that the airbag 600 is stained by the external environment. When the air bag 600 is in an inflated state, the inflated air bag 600 is extended out of the accommodation groove 800 to perform a preparation for blood pressure measurement.

Referring to fig. 9a, 9b, 10, 11, 12 and 13, in one embodiment, the housing 100 has a fixing device for fixing the housing 100 on a human body or a wearing article.

The user can fix the shell 100 on the body or the personal wearing object through the fixing device, so that the user can conveniently carry the blood pressure measuring equipment, and the user can use the blood pressure measuring equipment to measure the blood pressure at any time and any place when needed.

Referring to fig. 9a, 9b, 10, 11, 12 and 13, in a more specific embodiment, the fixing device is a fixing band 900, two ends of the fixing band 900 are connected to the housing 100, and the fixing band 900 is connected to the housing 100 to form a ring structure for being sleeved on a corresponding wearing object.

When the blood pressure measuring device needs to be carried about, the user can sleeve the fixing band 900 on the wearing object, so that the shell 100 can be fixed on the wearing object. For example, when the user wears the watch, the fixing band 900 may be correspondingly sleeved on the band 1000 of the watch.

In one embodiment, the gas channel 200 has at least two separately disposed first channels 210, and all the first channels 210 are collected into the same second channel 220 to increase the amount of intake air of the first channels 210. The ventilation amount of the first channels 210 is increased in such a manner that the number of the first channels 210 is increased.

Referring to fig. 16-17, in an embodiment, the housing 100 (140 is a portion of the housing 100 in the figures) has a recess as the second channel 220, the waterproof and breathable film 300 covers an opening of the recess, and the first channel 210 is disposed on a wall of the recess.

The housing 100 can be formed by injection molding, mold pressing and the like, and the pits formed when the housing 100 is formed are used as the second channels 220, so that the process of additionally forming the second channels 220 is saved, and the production efficiency of the housing 100 is improved. When processing first passageway 210, directly set up first passageway 210 on the pithead and just can guarantee the intercommunication of first passageway 210 and second passageway 220, avoid appearing first passageway 210 and second passageway 220 dislocation when seting up respectively, the condition that does not link up, reduced the rejection rate, be favorable to seting up the quality of management and control gas channel 200.

Referring to fig. 14 and 15, in an embodiment, the housing 100 includes an upper cover 130 and a lower cover 140, the upper cover 130 and the lower cover 140 enclose a mounting cavity, the upper cover 130 and the lower cover 140 are detachably connected, and the recess is formed on the lower cover 140.

When the components in the installation cavity need to be installed, detached, maintained or inspected, the worker can detach the upper cover 130 and the lower cover 140 to expose the components in the installation cavity, so that the worker can conveniently perform the operations of installing, detaching or inspecting and maintaining the components.

Specifically, the detachable connection between the upper cover 130 and the lower cover 140 can be realized by a threaded connection, a snap connection, a magnetic attraction fit, and the like.

Referring to fig. 14 and 15, in a more specific embodiment, a fixing strip 700 is disposed between the upper cover 130 and the lower cover 140 for detachably connecting the upper cover 130 and the lower cover 140. The upper cover 130 and the lower cover 140 are detachably connected by the fixing strip 700, the fixing strip 700 is used as a connecting piece, one side of the fixing strip is detachably connected with the upper cover 130, the other side of the fixing strip is detachably connected with the lower cover 140, and specifically, the fixing strip 700 can be connected with the upper cover 130 and the lower cover 140 by screws. Of course, as a variation of this embodiment, the fixing strip 700 may be connected with the upper cover 130 and the lower cover 140 by a snap connection or other suitable means.

In one embodiment, a sealing ring is disposed at the connection between the upper cover 130 and the lower cover 140 to enhance the waterproof performance of the casing 100.

Referring to fig. 14 and 15, in one embodiment, the blood pressure measuring device is a watch type blood pressure measuring instrument, and the above structures can be applied to the watch type blood pressure measuring instrument. The wristwatch type blood pressure measuring instrument further has a band 1000, and the band 1000 is attached to the case 100. When the blood pressure measuring device needs to be carried around, the user can fix the shell 100 on the wrist through the watchband 1000 like a watch, so that the user can conveniently carry the blood pressure measuring device around.

Referring to fig. 14 and 15, in an embodiment, the shape of the air bag 600 matches the shape of the watch band 1000, the air bag 600 is attached to the watch band 1000 for contacting with the human body, and the air bag 600 is detachably connected with the watch band 1000. Specifically, the airbag 600 may be fixed to the band 1000 by means of a socket joint, a strap connection, a magnetic attachment, a snap connection, or the like.

Referring to fig. 14 and 15, in one embodiment, the top cover 130 has a transparent lens 1100 for a user to view the electronic display 1200 in the receiving cavity. Electronic display 1200 is towards transparent lens 1100, when carrying out blood pressure measurement, shows the measuring result to electronic display 1200 on, the user can see through transparent lens 1100 and observe the measuring result, convenient and fast.

Referring to fig. 14 and fig. 15, in an embodiment, the waterproof housing has at least one key hole 1300, a key 1400 is disposed in the key hole 1300, and the key 1400 is hermetically connected to the key hole 1300. The user can switch on and off the blood pressure measuring instrument, adjust the measuring mode of the blood pressure measuring instrument, and the like through the buttons 1400.

Referring to fig. 18-21, in one embodiment, the first channel 210 and the second channel 220 may communicate to form a tapered gas channel 200.

Specifically, the first channel 210 may be arbitrarily disposed outside or inside the gas channel 200, for example, referring to fig. 18 to 20, the first channel 210 is disposed outside the gas channel 200, and the second channel 220 is disposed inside the gas channel 200. The second passageway 220 communicates with the installation cavity, and waterproof ventilated membrane 300 covers on the opening that second passageway 220 set up towards the installation cavity. Referring to fig. 21, the first channel 210 is located inside the gas channel 200, the second channel 220 is located outside the gas channel 200, the second channel 220 is communicated with the outside of the housing 100, and the waterproof and breathable film 300 covers an opening of the second channel 220 facing the outside of the housing 100.

Of course, the area of the air-permeable cross-section of the first and second passages may be formed in any suitable shape as long as it is ensured that the area of the air-permeable cross-section of at least the portion of the second passage for mounting the waterproof breathable film is larger than the area of the air-permeable cross-section of the first passage.

In one embodiment, the housing includes a main housing and a vent block. The main housing may be of similar construction to that described above, with the difference that the gas passage is not provided directly in the main housing, but in the vent block. The main casing body is provided with a mounting opening, the ventilation block is mounted in the mounting opening in a sealing mode, and the main casing body and the ventilation block jointly enclose to form a mounting cavity. Referring to fig. 22 and 23, a vent block is shown with a gas channel 200 disposed therethrough. Fig. 22 shows the air-out state, and fig. 23 shows the air-in state. The waterproof gas-permeable membrane 300 can be disposed at various positions of the gas channel 200 as shown in the embodiments shown in the foregoing.

The gas channel 200 is separately arranged on the vent block, so that the gas channel 200 can be separately manufactured and processed and then installed, and the difficulty of production and manufacture can be reduced.

The foregoing is a more detailed description of the present application in connection with specific embodiments thereof, and it is not intended that the present application be limited to the specific embodiments thereof. It will be apparent to those skilled in the art from this disclosure that many more simple derivations or substitutions can be made without departing from the inventive concepts herein.

Claims

1. A blood pressure measuring device, comprising:

2. The blood pressure measuring device of claim 1, wherein the effective area of the waterproof, breathable membrane is greater than or equal to the area of the breathable cross-section of the second passageway.

3. A blood pressure measuring device as recited in claim 1, wherein the first passage is located outside the gas passage, and the second passage is located inside the gas passage.

4. A blood pressure measuring device according to claim 3, wherein the second passage communicates with the mounting chamber, and the waterproof and breathable film covers an opening of the second passage provided toward the mounting chamber.

5. A blood pressure measuring device as recited in claim 1, wherein the first passage is located inside the gas passage, and the second passage is located outside the gas passage.

6. A blood pressure measuring device according to claim 5, wherein the second passage communicates with the outside of the housing, and the waterproof and breathable film covers an opening of the second passage provided toward the outside of the housing.

7. The blood pressure measuring device of claim 1, wherein the housing includes a main housing enclosing the mounting cavity and a cover plate mounted on the main housing and covering the second passage, the first passage being disposed through the cover plate.

8. The blood pressure measuring device according to claim 7, wherein the gas channel further has a third channel, the third channel is communicated between the first channel and the second channel, the second channel and the third channel are arranged on the main housing together, and the channel wall at the joint of the third channel and the second channel is in a step-like structure, and the waterproof breathable membrane is fixedly arranged on the step-like structure.

9. Blood pressure measuring device according to claim 8, wherein the first channel opens in the middle of the cover plate.

10. The blood pressure measuring device of claim 1, wherein the first channel and the second channel form an included angle a, the included angle a having a value range of: a is more than 0 degree and less than 180 degrees.

11. A blood pressure measuring device according to claim 10, wherein the included angle a has a range of values: a is more than 0 degree and less than or equal to 90 degrees.

12. The blood pressure measuring device of claim 10, wherein the housing includes a main housing enclosing the mounting cavity and a cover plate mounted to the main housing and covering the second passage, the first passage being disposed through the cover plate.

13. The blood pressure measuring device of claim 10, wherein the housing includes a main housing enclosing the mounting cavity and a cover plate disposed on a wall of the main housing, the cover plate being mounted on the main housing, the cover plate enclosing the main housing to form the first passageway.

14. A blood pressure measuring apparatus according to claim 1, wherein the gas passage has at least two separately provided first passages, all of which are collected into the same second passage to increase the amount of intake air of the first passages.

15. The blood pressure measuring device according to claim 14, wherein the housing has a recess as a second passage, the waterproof and breathable film covers an opening of the recess, and the first passage is provided through a wall of the recess.

16. The blood pressure measuring device of claim 15, wherein the housing comprises an upper cover and a lower cover, the upper cover and the lower cover enclose a mounting cavity, the upper cover and the lower cover are detachably connected, and the recess is formed in the lower cover.

17. The blood pressure measuring apparatus of claim 1, wherein an outer wall of one side of the housing has a recessed receiving groove for receiving the air bag.

18. A blood pressure measuring device as recited in claim 1, wherein the first passage and the second passage communicate to form a tapered gas passage.

19. The blood pressure measuring device of claim 1, wherein the housing includes a main housing having a mounting opening and a vent block sealingly mounted in the mounting opening, the gas passage being disposed through the vent block.

20. Blood pressure measuring device according to one of the claims 1 to 19, wherein the housing has fixing means for fixing the housing on a person or a wearing object.

21. The blood pressure measuring device of claim 20, wherein the fixing means is a fixing band, and both ends of the fixing band are connected with the housing and form a ring structure for being sleeved on corresponding wearing objects.

22. A blood pressure measuring device according to any of claims 1 to 19, wherein the blood pressure measuring device is a wristwatch type blood pressure measuring instrument further having a strap, the strap being mounted on the case.