CN110477896B

CN110477896B - Pulse measuring device

Info

Publication number: CN110477896B
Application number: CN201910729573.0A
Authority: CN
Inventors: 江国旺; 高志成
Original assignee: Shanghai Zhangmen Science and Technology Co Ltd
Current assignee: Shanghai Zhangmen Science and Technology Co Ltd
Priority date: 2019-08-08
Filing date: 2019-08-08
Publication date: 2022-08-30
Anticipated expiration: 2039-08-08
Also published as: CN110477896A

Abstract

The application aims at providing a pulse measuring device which comprises a shell, a pressure adjusting piece, a sensor fixing seat and a pulse sensor; the pressure adjustment member is mounted to the housing and configured to move axially relative to the housing; the sensor fixing seat is arranged in the shell and used for fixing the pulse sensor; the pulse sensor is arranged on the sensor fixing seat; the sensor fixing seat is arranged at the end part of the pressure adjusting part and is configured to move along the direction of entering and exiting the shell, so that the pulse sensor is driven to move along the direction of entering and exiting the shell. The pulse measurement device facilitates rapid and accurate positioning of the sensor on the wrist surface to acquire pulse signals and adjust the pressure of the pulse sensor on the user's wrist as needed.

Description

Pulse measuring device

Technical Field

The application relates to the field of pulse detection, in particular to a technology for measuring pulse.

Background

The pulse is the artery pulsation that human body surface touchable arrived, and this kind of pulsation is relatively weak usually, need find the accurate position and just can gather, consequently if gather the pulse through pulse collection equipment, collection equipment needs to satisfy the location demand of higher precision.

Disclosure of Invention

It is an object of the present application to provide a pulse measuring device.

According to one aspect of the present application, there is provided a pulse measurement device including:

a housing;

a pressure adjustment member mounted to the housing and configured to move axially relative to the housing;

the sensor fixing seat is arranged in the shell and used for fixing the pulse sensor; and

the pulse sensor is arranged on the sensor fixing seat;

the sensor fixing seat is arranged at the end part of the pressure adjusting part and is configured to move along the direction of entering and exiting the shell, so that the pulse sensor is driven to move along the direction of entering and exiting the shell.

In some embodiments, an end of the pressure adjustment member abuts against the sensor mount; the pressure adjusting piece is used for pushing the pulse sensor to move towards the direction of moving out of the shell.

In some embodiments, the pressure adjustment member further comprises a resilient hold down assembly that holds the sensor mount in contact with an end of the pressure adjustment member.

In some embodiments, the elastic pressing assembly includes at least one tension spring, wherein one end of the tension spring is hooked to the housing, and the other end of the tension spring is hooked to the sensor holder, so that the sensor holder is maintained in contact with the end of the pressure adjustment member by the tension force provided by the tension spring.

In some embodiments, the elastic pressing assembly includes at least one thrust spring, wherein one end of the thrust spring abuts against the housing, and the other end of the thrust spring abuts against the sensor holder, so that the sensor holder is kept in contact with the end of the pressure adjustment member under the thrust provided by the thrust spring.

In some embodiments, the pressure regulating member is fitted with the sensor holder; the pressure adjustment member is configured to pull the pulse sensor to move in a direction into the housing.

In some embodiments, the pulse measuring device is provided with an occlusion part, and the pressure regulating member is circumferentially provided with a first thread which is engaged with the occlusion part; when the pressure adjusting piece rotates relative to the meshing part, the meshing part pushes the pressure adjusting piece to move along the axial direction of the pressure adjusting piece through the first thread.

In some embodiments, the bite includes a ball seat fixed to the housing and a ball embedded in the ball seat, and the ball is embedded in the first thread.

In some embodiments, the engaging portion includes a second thread fixedly disposed on the housing, and the first thread and the second thread are engaged with each other.

In some embodiments, the pulse measurement device further comprises a drive portion for driving relative rotation of the first thread and the bite portion.

In some embodiments, the driving part is fixedly arranged on the pressure regulating part.

In some embodiments, the engagement portion is fixedly disposed on the drive portion, the drive portion is axially fixed relative to the housing, and the drive portion is configured to axially rotate relative to the housing.

In some embodiments, the housing includes a first end cap, and the drive portion is disposed outside of the first end cap.

In some embodiments, the pulse measurement device further comprises a drive motor for driving the drive portion to rotate axially relative to the housing.

In some embodiments, the pulse measurement device further comprises a wrist strap for securing the housing to a wrist of a user.

In some embodiments, the housing comprises a second end cap, the second end cap being provided with a through hole, the second end cap being adapted to be pressed against a target surface; the pulse sensor moves in the direction of entering and exiting the shell through the through hole.

Compared with the prior art, the position of the sensor on the wrist can be conveniently adjusted, so that the sensor can be rapidly and accurately positioned on the surface of the wrist to acquire the pulse signals, and the pressure of the pulse sensor on the wrist of a user can be conveniently adjusted according to requirements.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:

fig. 1 and 2 respectively show an appearance of a pulse measuring device in one embodiment of the present application;

fig. 3 to 6 respectively show the internal structure of a pulse measurement device in one embodiment of the present application.

The same or similar reference numbers in the drawings identify the same or similar elements.

Reference numerals

100 case

110 reference positioning part

120 occlusion part

200 pressure regulating member

210 first thread

220 driving part

300 sensor fixing base

400 pulse sensor

500 tension spring

600 wrist strap

Detailed Description

The present application is described in further detail below with reference to the attached figures.

In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the indicated orientations and positional relationships based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first," "second," etc. may explicitly or implicitly include one or more of the features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, a first feature "on," "above," and "over" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. First feature "under", "below" and "beneath" second feature may include the first feature being directly above and diagonally above the second feature, or merely indicating that the first feature is at a lesser level than the second feature.

In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Fig. 1 and 2 show a pulse measuring device, which mainly includes a housing 100. The housing 100 is used to provide support for the pulse sensor 400 so that the pulse sensor 400 can be pressed against a target surface. In some embodiments, the target surface is a skin surface of the user and the target surface is used to detect the pulse of the user, for example the target surface is located at a radial artery location radial to the volar aspect of the thumb of the user. In some embodiments, referring to fig. 1, 2, the pulse measuring device further comprises a wrist strap 600 to fix the position of the housing 100 on the wrist of the user. It will be understood by those skilled in the art that the manner of securing the case 100 using the wristband 600 is merely exemplary and not limiting of the present application; other existing or future embodiments that may be used to fix the position of the housing 100 on the user's wrist, as applicable to the present application, are also within the scope of the present application and are incorporated by reference herein.

In some embodiments, the housing 100 includes a side wall and two end caps (a first end cap and a second end cap, respectively), wherein the two end caps are respectively mounted to two openings of the side wall.

Wherein, the pulse measuring device can fix the pulse sensor 400 and press the working surface of the pulse sensor 400 on the target surface. Since the pulse is a weak pulse, the measurement position needs to be accurately found if the pulse is measured accurately. In addition, there is a need in some cases to change the pressure of the pulse sensor 400 at the skin surface (e.g., separately measure pulse data at different pressures), so the pulse measurement device may be used by the user to adjust the pressure between the working surface and the target surface of the pulse sensor 400 in some embodiments. In order to assist the working surface of the pulse sensor 400 in positioning on a target surface (e.g., the skin surface of a user) and to precisely control the pressure (pressure) generated by the pulse sensor 400 when locally pressing on the target surface, the pulse measurement device is also optionally provided with a reference positioning part 110. The datum locator 110 is configured to press against a target surface, and in some embodiments, the side in contact with the target surface forms a substantially flat or curved surface; when the pulse sensor 400 moves relative to the plane or curved surface (e.g., moves along the normal direction of the plane or curved surface) to change the pressure (pressure) between the working surface and the target surface of the pulse sensor 400, the reference positioning part 110 presses against the target surface and provides a reference for positioning the housing 100 on the target surface. In one embodiment, referring to fig. 2, the contact portion of the reference positioning portion 110 and the target surface is in a ring shape (e.g., circular ring shape, square ring shape, or other closed ring shape), and the ring provides a space required for the working surface of the pulse sensor 400 to reciprocate; the reference positioning part 110 is an end cover of the housing, and has a through hole at the center for the pulse sensor 400 to move in the direction of entering and exiting the housing 100 (refer to the x-y direction shown in fig. 3). It will be understood by those skilled in the art that the annular datum locator 110 is merely exemplary and not limiting of the embodiments of the present application; other embodiments of the reference positioning part 110 that are currently available or may come into existence in the future are also included in the scope of protection of the present application, and are incorporated herein by reference. For example, the reference positioning part 100 has several separated contact surfaces with the target surface, and the contact surfaces together define a plane or a curved surface, and the reference positioning part 110 is pressed against the target surface and provides a reference for positioning the pulse measurement device 100 body on the target surface.

The pulse sensor is used for detecting pressure change generated during the pulse of the artery and converting the pressure change into an electric signal which can be observed and detected more intuitively. A common pulse sensor belongs to a micro-pressure sensor, and the output mode may include analog output, digital output, and the pressure process of pulse pulsation is converted into an electrical signal through a micro-pressure type material (e.g. a piezoelectric patch, a bridge, etc.) and output.

Wherein in some embodiments, the reference positioning portion 110 is integrally formed with the housing 100. In other embodiments, the reference positioning part 110 is additionally installed on the housing 100. For example, the datum locator 110 is a cover of the housing 100, or is part of the cover; and the cover is mounted to the housing 100 by gluing, screwing, etc., or by other threaded fasteners (e.g., bolts, screws, etc.) to the housing 100. It should be understood by those skilled in the art that these manners for mounting the datum locator 110 on the housing 100 are merely examples and are not intended to limit the present disclosure, and other embodiments that may be present or later come into existence are also included within the scope of the present disclosure and are incorporated by reference herein.

Referring to fig. 3, 4, there are shown sectional views of the pulse measuring device, which in some embodiments includes a pressure regulating member 200 and a sensor holder 300. The pressure-adjusting member 200 is axially movable with respect to the housing 100. Taking fig. 3 as an example, the pressure adjustment member 200 can move along the x-y direction to drive the sensor fixing base 300 disposed inside the housing 100 to move along the x-y direction, so as to drive the pulse sensor 400 to move along the x-y direction (i.e. the direction of entering and exiting the housing 100). For example, the side of the reference positioning portion 110 that contacts the target surface forms a substantially flat or curved surface, and the x-y direction is substantially parallel to the normal to the flat or curved surface. When the pressure adjusting member 200 moves in the x-y direction, the sensor holder 300 follows the pressure adjusting member 200 to move in the x-y direction, and in some embodiments, the sensor holder 300 is installed at an end of the pressure adjusting member 200; the sensor holder 300 is used to fix the pulse sensor 400, the direction of the working surface of the pulse sensor 400 is the same as the direction of the working surface of the reference positioning part 110, and if the pulse sensor 400 is mounted on the sensor holder, when the pressure adjustment member 200 moves in the x-y direction, the pulse sensor 400 also moves in the x-y direction along with the pressure adjustment member 200, so that the pulse sensor 400 loosens or presses on the target surface. Thus, the user can control the amount of pressure applied by the pulse sensor 400 to the target surface by adjusting the pressure adjustment member 200 to move in the x-y direction.

Wherein in some embodiments, the pressure adjusting member 200 is driven by a screw structure, so as to achieve the purpose of enabling the pressure adjusting member 200 to be moved precisely and driven easily. For example, the pressure adjusting member 200 is provided with a screw thread, and accordingly, the pulse measuring device is provided with an engaging portion which engages with the screw thread. Referring to fig. 4, the pressure adjusting member 200 is circumferentially provided with a first screw 210, and the first screw 210 is engaged with an engaging portion 120 provided inside the housing 100; when the pressure adjusting member 210 rotates around its axis relative to the engaging portion 120, since the engaging portion is fixedly provided on the inner side of the housing 100, the engaging portion 120 moves relative to the housing 100 while moving relative to the first screw thread 210, and pushes the pressure adjusting member 200 to move along its axial direction via the first screw thread 210, for example, the pressure adjusting member 200 moves in the x-y direction shown in fig. 3. In some embodiments, the bite portion includes a ball seat fixed to the housing (e.g., with reference to the housing 100, the ball seat is fixed in the rotational axis direction of the pressure adjusting member 200, i.e., in the x-y direction shown in fig. 3) and a ball embedded in the ball seat, and the ball is embedded in the first thread; the balls embedded in the first screw 210 can greatly reduce friction applied to the pressure adjustment member 200 when rotating relative to the housing 100, so as to reduce the driving force required for driving the pressure adjustment member 200 to rotate, and increase the moving accuracy of the pressure adjustment member 200 (and the pulse sensor 400). The arrangement mode of the balls on the shell can refer to the existing ball screw. In other embodiments, for ease of manufacturing and cost reduction, the engaging portion includes a second thread (not shown) disposed on an inner surface of the housing 100, the second thread engaging with the first thread 210; in one implementation, the second thread may be directly tapped on the inner surface of the casing 100, or may be provided by a component (e.g., a nut or the like) that is mounted to the casing 100.

In some embodiments, the pulse measurement device further comprises a driving portion for driving 210 the relative rotation of the first thread and the bite 120. The pressure adjusting member 200 of the above embodiments is driven manually by a user in some embodiments, and driven by other external driving force (such as the driving force provided by a motor) in other embodiments. Taking the pressure adjusting member 200 as an example, which is manually driven by a user, in some embodiments, referring to fig. 4, the driving portion 220 is fixedly disposed on the pressure adjusting member 200, for example, the driving portion 220 is integrally formed with the pressure adjusting member 200; the user rotates the driving part 220, and the pressure-adjusting member 200 rotates together with the driving part 220. In some embodiments, for example, as shown in fig. 3, the driving portion 220 extends out of one end cap of the housing and is located outside the housing 100. Of course, it should be understood by those skilled in the art that the driving portion 220 and the pressure adjustment member 200 are integrally formed as a non-limiting embodiment of the driving portion 220, and other embodiments of the driving portion 220 for driving the pressure adjustment member 200 are also included in the scope of the present application. For example, the driving part 220 is a separate member mounted to the pressure adjusting member 200, or the driving part 220 drives the pressure adjusting member 200 through a transmission mechanism (e.g., a gear or a gear train). In other cases, the pressure adjusting member 200 is driven by other external driving force so as to achieve precise adjustment of the position of the sensor under automatic computer control or remote control. For example, the pulse measuring device further includes a driving motor (e.g., a servo motor) that directly drives the pressure-adjusting member 200, or the driving motor drives the pressure-adjusting member 200 through a transmission mechanism (e.g., a gear or a gear train).

In some embodiments, the engaging portion 120 is disposed inside the housing 100, and the driving portion 220 rotates synchronously with the pressure adjustment member 200 to drive the pressure adjustment member 200. In other embodiments of the present application, referring to fig. 5, the driving part 220 is separated from the pressure-adjusting member 200, the engaging part 120 is provided on the inner side surface of the driving part 220, and the driving part 220 is axially fixed (axial translation is restricted) with respect to the housing 100, but the driving part 220 is axially rotatable; while the pressure adjustment member 200 is axially translatable relative to the housing 100, but is limited from axial rotation. Thus, when the driving part 220 rotates, the pressure adjustment member 200 (together with the sensor holder 300 and the pulse sensor 400) is pushed by the first screw 210 to translate along the axis (refer to the x-y direction in fig. 5). In some embodiments, the pressure adjustment member 200 is engaged with the sensor holder 300 at a contact position of the two (for example, a surface of one of the two is provided with a protrusion, and a surface of the other is provided with a recess matching with the protrusion) to limit axial rotation of the pressure adjustment member 200 relative to the housing 100, or the pressure adjustment member 200 is engaged with the sensor holder 300 by riveting, screwing, keying, or the like. Still alternatively, referring to fig. 6, the pressure adjusting member 200 is integrally formed with the sensor holder 300; in this case, the tension spring 500 for preventing the pressure adjustment member 200 from being separated from the sensor holder 300 may be omitted, so as to simplify the structure and save the cost. Here, the specific embodiment of the engaging portion 120 is the same or substantially the same as the specific embodiment of the engaging portion 120 described above, and is not described again and is included herein by reference.

It will be evident to those skilled in the art that the application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it will be obvious that the term "comprising" does not exclude other elements or steps, and the singular does not exclude the plural. A plurality of units or means recited in the apparatus claims may also be implemented by one unit or means in software or hardware. The terms "first," "second," and the like are used to denote names, but not to denote any particular order.

Claims

1. A pulse measurement device, wherein the pulse measurement device comprises:

a housing;

the pulse sensor is arranged on the sensor fixing seat and is used for detecting pressure change generated during the pulse of the artery;

the pulse measuring device is also provided with a reference positioning part, the reference positioning part is used for being pressed on a target surface, the target surface is used for detecting the pulse of a user, the contact part of the reference positioning part and the target surface is annular, and the annular provides a space required by the reciprocating motion of the working surface of the pulse sensor;

the sensor fixing seat is arranged at the end part of the pressure adjusting piece and is configured to move along the direction of entering and exiting the shell, so that the pulse sensor is driven to move along the direction of entering and exiting the shell.

2. The pulse measuring device according to claim 1, wherein an end of the pressure regulating member abuts against the sensor holder; the pressure adjusting piece is used for pushing the pulse sensor to move towards the direction of moving out of the shell.

3. The pulse measuring device of claim 2, wherein the pressure regulating member further comprises a resilient compression assembly that holds the sensor mount in contact with an end of the pressure regulating member.

4. The pulse measuring device according to claim 3, wherein the elastic pressing member includes at least one tension spring, wherein one end of the tension spring is hooked to the housing and the other end of the tension spring is hooked to the sensor holder, so that the sensor holder is held in contact with the end of the pressure-regulating member by the tension force provided by the tension spring.

5. The pulse measuring device according to claim 3 or 4, wherein the elastic pressing member comprises at least one thrust spring, wherein one end of the thrust spring abuts against the housing and the other end of the thrust spring abuts against the sensor holder, so that the sensor holder is kept in contact with the end of the pressure-adjusting member under the thrust provided by the thrust spring.

6. The pulse measuring device according to claim 2, wherein the pressure adjusting member is fitted to the sensor holder; the pressure adjustment member is configured to pull the pulse sensor to move in a direction into the housing.

7. The pulse measuring device according to claim 1, wherein the pulse measuring device is provided with an engaging portion, the pressure regulating member is circumferentially provided with a first thread, and the first thread engages with the engaging portion; when the pressure adjusting piece rotates relative to the meshing part, the meshing part pushes the pressure adjusting piece to move along the axial direction of the pressure adjusting piece through the first thread.

8. The pulse measurement device according to claim 7, wherein the engagement portion includes a ball seat fixed to the housing and a ball embedded in the ball seat, and the ball is embedded in the first thread.

9. The pulse measurement device of claim 7, wherein the bite portion includes a second thread fixedly disposed on the housing, and the first thread intermeshes with the second thread.

10. The pulse measuring device according to any one of claims 7 to 9, further comprising a driving portion for driving relative rotation of the first thread and the bite portion.

11. The pulse measurement device according to claim 10, wherein the driving unit is fixed to the pressure adjustment member.

12. The pulse measurement device of claim 10, wherein the bite portion is fixedly disposed to the drive portion, the drive portion is axially fixed relative to the housing, and the drive portion is configured to axially rotate relative to the housing.

13. The pulse measurement device of claim 12, wherein the housing includes a first end cap, the drive portion being disposed outside of the first end cap.

14. The pulse measurement device of claim 10 further comprising a drive motor for driving the drive portion in axial rotation relative to the housing.

15. The pulse measurement device of claim 1, further comprising a wrist strap for securing the housing to a wrist of a user.

16. The pulse measuring device of claim 1, wherein the housing comprises a second end cap, the second end cap having a through hole, the second end cap configured to press against a target surface; the pulse sensor moves in the direction of entering and exiting the shell through the through hole.