CN109770874B - Mechanical finger of pulse-taking instrument - Google Patents
Mechanical finger of pulse-taking instrument Download PDFInfo
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- CN109770874B CN109770874B CN201910239090.2A CN201910239090A CN109770874B CN 109770874 B CN109770874 B CN 109770874B CN 201910239090 A CN201910239090 A CN 201910239090A CN 109770874 B CN109770874 B CN 109770874B
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- 230000005540 biological transmission Effects 0.000 claims description 22
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 238000003745 diagnosis Methods 0.000 description 7
- 210000000707 wrist Anatomy 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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Abstract
The invention discloses a mechanical finger of a pulse-taking instrument, which is characterized by comprising the following components: a post rotatable about a first axis; the first driving device is connected with the upright post and used for driving the upright post to rotate around a first axis; a sensor assembly comprising a sensor mount and a sensor mounted on the sensor mount, the sensor mount being mounted on the upright and rotatable about a second axis, the second axis being perpendicular to the first axis; and a second drive means mounted on the upright for driving the sensor mount in rotation about a second axis. According to the mechanical finger of the pulse-taking instrument, the sensor can swing in two degrees of freedom, a pressure value signal can be obtained when the sensor is in contact with human skin, and then the pressure sensing surface is controlled to be regulated to a reasonable angle through the driving device according to the pressure value signal, so that a more accurate pulse condition signal can be obtained. In addition, the second driving device of the pulse-taking instrument has the advantages of simple structure and small volume.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a mechanical finger of a pulse-taking instrument.
Background
Pulse diagnosis is used as a diagnostic means of traditional Chinese medicine in China, and a diagnosis system of 28 pulse conditions is gradually formed through thousands of years of research and practice of traditional Chinese medicine in the past. At present, the main mode of pulse diagnosis in traditional Chinese medicine still is that a doctor perceives the pulse condition of a patient through fingers, and then the doctor diagnoses diseases according to experience of the doctor and hand touch. The diagnosis mode has fuzzy judgment standard, is easily influenced by personal experience and subjective factors of doctors to cause misjudgment, and cannot quantify and effectively record pulse conditions.
For this reason, pulse diagnosis apparatuses for diagnosing pulse have appeared on the market, and the pulse diagnosis apparatus mainly comprises a wrist fixing device for fixing the wrist, a mechanical finger mechanism for collecting pulse signals of a subject, and a host for analyzing and processing the pulse signals. The mechanical finger mechanism comprises at least one mechanical finger and a finger driving device for adjusting the three-dimensional position of the at least one mechanical finger. The mechanical finger of the existing mechanical finger mechanism usually has only three degrees of freedom in X, Y and Z directions, and cannot level the sensing surface of the sensor and the pulse plane of the wrist, so that pulse signals with consistency and high quality are difficult to acquire.
Disclosure of Invention
Aiming at the prior art, the invention provides a mechanical finger mechanism for a pulse diagnosis instrument, which can realize the leveling of the sensing surface of a sensor and the pulse plane of a wrist so as to acquire pulse condition signals with consistency and high quality.
In order to solve the technical problems, the mechanical finger of the pulse-taking instrument provided by the invention is characterized by comprising the following components:
A post rotatable about a first axis;
the first driving device is connected with the upright post and used for driving the upright post to rotate around the first axis;
A sensor assembly comprising a sensor mount and a sensor mounted on the sensor mount, the sensor mount being mounted on the upright and rotatable about a second axis, the second axis being perpendicular to the first axis, and a distance between the second axis and a sensing surface of the sensor being less than 5mm; and
And the second driving device is arranged on the upright post and used for driving the sensor mounting piece to rotate around the second axis.
According to the mechanical finger of the pulse-taking instrument, the sensor mounting piece can rotate around the first axis and the second axis, so that the sensor can swing in two degrees of freedom, a pressure value signal can be obtained when the sensor is in contact with human skin, and then the pressure sensing surface is controlled to be adjusted to a reasonable angle through the driving device according to the pressure value signal, so that a more accurate pulse condition signal can be obtained. In addition, the second driving device of the pulse-taking instrument adopts a double-parallelogram mechanism, and has the advantages of simple structure and small volume.
In one embodiment, the second driving device comprises a first driving motor and a transmission mechanism, wherein an output shaft of the first driving motor is in transmission connection with an input end of the transmission mechanism, and an output end of the transmission mechanism is connected with the sensor mounting piece.
In one embodiment, the transmission mechanism comprises a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod, the first connecting rod and the second connecting rod are vertically arranged at intervals along the longitudinal direction of the upright post, the first connecting rod or the second connecting rod is in transmission connection with an output shaft of the first driving motor, the third connecting rod and the fourth connecting rod are horizontally arranged at intervals along the upright post, the upper ends of the third connecting rod and the fourth connecting rod are respectively connected with two ends of the first connecting rod through hinges, the middle parts of the third connecting rod and the fourth connecting rod are respectively connected with two ends of the second connecting rod through hinges, and the lower ends of the third connecting rod and the fourth connecting rod are respectively connected with the sensor mounting part through hinges.
In one embodiment, one of the first connecting rod and the second connecting rod is in transmission connection with the output shaft of the first driving motor, and the other is rotatably supported on the upright through a supporting shaft.
In one embodiment, the sensor mount includes a bottom plate portion and side plate portions extending obliquely upward from both ends of the bottom plate portion, the bottom plate portion being connected to lower ends of the third link and the fourth link by a hinge, the sensor being fixed on a bottom surface of the bottom plate portion.
In one embodiment, the transmission mechanism comprises a vertical rod extending along the longitudinal direction of the vertical column and a transverse rod extending along the transverse direction of the vertical column, the lower end of the vertical rod is connected with the output shaft of the first driving motor, the upper end of the vertical rod is connected with one end of the transverse rod, and the other end of the transverse rod is connected with the sensor mounting piece.
In one embodiment, the first driving device comprises a second driving motor, and an output shaft of the second driving motor is in transmission connection with the upper end of the upright post.
The advantageous effects of the additional technical features of the present invention will be described in the detailed description section of the present specification.
Drawings
Fig. 1 is a schematic perspective view of a mechanical finger of a pulse-taking device according to a first embodiment of the present invention;
FIG. 2 is an exploded view of a mechanical finger of a pulse-taking device according to a first embodiment of the present invention;
Fig. 3 is a schematic perspective view of a mechanical finger of a pulse-taking device according to a second embodiment of the present invention;
FIG. 4 is an exploded view of a mechanical finger of a pulse-taking device according to a second embodiment of the present invention;
fig. 5 is a side view of a mechanical finger of a pulse-taking device in a second embodiment of the present invention.
Reference numerals illustrate: 1. a column; 101. a mounting part; 102. a shaft hole; 2. a sensor mount; 202. a bottom plate portion; 203. a side plate portion; 3. a sensor; 4. a third link; 5. a fourth link; 6. a first link; 7. a second link; 9. a first driving motor; 10. a support shaft; 11. a motor mounting plate; 12. a pin shaft; 13. a second driving motor; 152. a vertical rod; 154. a cross bar.
Detailed Description
The invention will be described in detail below with reference to the drawings in conjunction with embodiments. The following embodiments and features in the embodiments may be combined with each other without collision.
Example 1
Fig. 1 is a perspective view of a mechanical finger of a pulse-taking device according to a first embodiment of the present invention, and fig. 2 is an exploded view of the mechanical finger of the pulse-taking device according to the first embodiment of the present invention. As shown in fig. 1 and 2, the mechanical finger of the pulse-taking instrument in this embodiment includes a stand 1, a first driving device, a sensor assembly, and a second driving device, where the stand 1 is vertically disposed, the stand 1 is used to connect with a finger driving mechanism (not shown in the drawing), and the stand 1 can rotate around a first axis.
The first driving device is used for driving the upright 1 to rotate around the first axis L1. In this embodiment, the first driving device includes a second driving motor 13, where the second driving motor 13 is mounted on the motor mounting plate 11, and an output shaft of the second driving motor 13 is in transmission connection with the upper end of the upright 1. Preferably, the upper end of the upright 1 is provided with a mounting part 101 extending outwards transversely, the mounting part 101 is provided with a shaft hole 102, and the output shaft of the second driving motor 13 is inserted and fixed in the shaft hole 102. The output shaft of the second driving motor 13 may be directly connected with the upper end of the upright 1, or may be connected with the upper end of the upright through a speed reducer.
The sensor assembly comprises a sensor mounting piece 2 and a sensor 3, wherein the sensor mounting piece 2 is positioned below the upright post 1 and can rotate around a second axis L2 perpendicular to the first axis L1, and a sensor mounting surface is arranged on the bottom surface of the sensor mounting piece 2. The sensor 3 is mounted on the sensor mounting surface of the sensor mount 2, and the sensor 3 includes a plurality of sensor units (not shown in the drawing) for acquiring pulse signals, the plurality of sensor units being arranged at intervals along the rotational direction of the sensor mount 2, preferably, the plurality of sensor units being arranged in a matrix. In this embodiment, the sensor 3 further includes a flexible mounting band, the plurality of sensor units are fixed to the mounting band, and the mounting band is attached to the sensor mounting surface. Alternatively, a plurality of sensor units may also be attached directly to the sensor mounting surface.
In one embodiment, the sensor mount 2 includes a bottom plate portion 202 and side plate portions 203 extending obliquely upward from both ends of the bottom plate portion 202, and the sensor 3 is fixed on the bottom surface of the bottom plate portion 202.
A second drive means is mounted on the upright 1 for driving the sensor mount 2 in rotation about a second axis L2. The second driving device comprises a transmission mechanism and a first driving motor 9, the transmission mechanism in the embodiment comprises a first connecting rod 6, a second connecting rod 7, a third connecting rod 4 and a fourth connecting rod 5, the first connecting rod 6 and the second connecting rod 7 are vertically arranged at intervals along the longitudinal direction of the upright 1, the third connecting rod 4 and the fourth connecting rod 5 are horizontally arranged at intervals along the upright 1, the upper ends of the third connecting rod 4 and the fourth connecting rod 5 are respectively connected with two ends of the first connecting rod 6 through hinges, the middle parts of the third connecting rod 4 and the fourth connecting rod 5 are respectively connected with two ends of the second connecting rod 7 through hinges, the lower ends of the third connecting rod 4 and the fourth connecting rod 5 are respectively connected with two sides of the sensor mounting part 2 through hinges, the first connecting rod 6, the second connecting rod 7, the third connecting rod 4, the fourth connecting rod 5 and the sensor mounting part 2 form a double-parallel mechanism, the second axis L2 is close to the sensing surface of the sensor 3, and the distance between the second axis L2 and the sensing surface is smaller than 3mm. After the sensing surface of the sensor 3 is contacted with the skin of the human body, when the mechanical finger 8 rotates around the first axis L1, the sensing surface rotates along with the first axis L1 to bring friction force between the sensing surface and the skin, the smaller the distance between the first axis L1 and the sensing surface is, the smaller the swing of the sensing surface is, the smaller the friction between the sensing surface and the skin of the human body is, and the higher the comfort is; after the sensing surface of the sensor 3 contacts the human skin, the sensor 3 generates a lateral reaction force to the finger after contacting the human skin, and the smaller the distance between the first axis L1 and the sensing surface is, the smaller the reaction force is.
In the embodiment, two ends of the first connecting rod 6 and the second connecting rod 7 are fork-shaped, and the upper ends of the third connecting rod 4 and the fourth connecting rod 5 are respectively inserted into two ends of the first connecting rod 6 and are connected together through a pin shaft 12; the middle parts of the third connecting rod 4 and the fourth connecting rod 5 are respectively inserted into the two ends of the second connecting rod 7 and are connected together through a pin shaft 12.
The output shaft of the first driving motor 9 is in transmission connection with the first connecting rod 6 or the second connecting rod 7. In this embodiment, the first driving motor 9 is fixed on the upper end of the upright 1, the output shaft of the first driving motor 9 is in transmission connection with the first connecting rod 6, the second connecting rod 7 is rotatably supported on a supporting shaft 10, and the supporting shaft 10 is mounted on the lower end of the upright 1. In this way, the first drive motor 9 is remote from the sensor assembly, avoiding interference with the movement of the sensor assembly. The output shaft of the first driving motor 9 and the first connecting rod 6 can be directly connected or connected through a speed reducer and a coupling.
In the mechanical finger of the pulse-taking instrument in the embodiment, the sensor mounting piece 2 can rotate around the first axis L1 and the second axis L2, so that the sensor 3 can swing in two degrees of freedom, a pressure value signal can be obtained when the sensor 3 is in contact with the skin of a human body, and then the pressure sensing surface is controlled to be regulated to a reasonable angle through the driving device according to the pressure value signal, so that a more accurate pulse condition signal can be obtained. In addition, the second driving device of the pulse-taking instrument adopts a double-parallelogram mechanism, and has the advantages of simple structure and small volume.
Example two
Fig. 3 is a perspective view of a mechanical finger of a pulse-taking device according to a second embodiment of the present invention, and fig. 4 is an exploded view of the mechanical finger of the pulse-taking device according to the second embodiment of the present invention. As shown in fig. 3 and 4, the structure of the mechanical finger of the pulse-taking apparatus in this embodiment is substantially the same as that of the first embodiment, except that: the transmission mechanism in this embodiment includes a vertical rod 152 extending along the longitudinal direction of the upright 1 and a cross rod 154 extending along the transverse direction of the upright 1, the lower end of the vertical rod 152 is connected with the output shaft of the second driving motor 13, the upper end of the vertical rod 152 is connected with one end of the cross rod 154, and the other end of the cross rod 154 is connected with the sensor mounting member 2. As shown in fig. 5, the second axis L2 coincides with the sensing surface of the sensor 3, the distance between the second axis L2 and the sensing surface of the sensor 3 is zero, the swing of the sensing surface is smaller, the friction between the sensing surface and the skin of the human body is smaller, and the comfort is higher; moreover, the sensor 3 generates smaller lateral reaction force to the finger after contacting the skin of the human body.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention.
Claims (5)
1. A pulse-taking instrument mechanical finger, comprising:
A post rotatable about a first axis;
the first driving device is connected with the upright post and used for driving the upright post to rotate around the first axis;
A sensor assembly comprising a sensor mount and a sensor mounted on the sensor mount, the sensor mount being mounted on the upright and rotatable about a second axis, the second axis being perpendicular to the first axis, and a distance between the second axis and a sensing surface of the sensor being less than 5mm; and
A second drive means mounted on the upright for driving rotation of the sensor mount about the second axis;
The second driving device comprises a first driving motor and a transmission mechanism, an output shaft of the first driving motor is in transmission connection with an input end of the transmission mechanism, and an output end of the transmission mechanism is connected with the sensor mounting piece; the transmission mechanism comprises a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod, wherein the first connecting rod and the second connecting rod are arranged along the vertical direction of the upright at intervals, the first connecting rod or the second connecting rod is in transmission connection with an output shaft of the first driving motor, the third connecting rod and the fourth connecting rod are arranged along the horizontal direction of the upright at intervals, the upper ends of the third connecting rod and the fourth connecting rod are respectively connected with the two ends of the first connecting rod through hinges, the middle parts of the third connecting rod and the fourth connecting rod are respectively connected with the two ends of the second connecting rod through hinges, and the lower ends of the third connecting rod and the fourth connecting rod are respectively connected with the sensor mounting part through hinges.
2. The pulse-taking instrument mechanical finger according to claim 1, wherein one of the first link and the second link is in driving connection with an output shaft of the first drive motor, and the other is rotatably supported on the upright by a support shaft.
3. The pulse-taking instrument mechanical finger according to claim 1, wherein the sensor mount includes a bottom plate portion and side plate portions extending obliquely upward from both ends of the bottom plate portion, the bottom plate portion being connected to lower ends of the third link and the fourth link by a hinge, the sensor being fixed on a bottom surface of the bottom plate portion.
4. The pulse-taking instrument mechanical finger according to claim 1, wherein the transmission mechanism comprises a vertical rod extending longitudinally of the upright post and a transverse rod extending transversely of the upright post, the lower end of the vertical rod is connected with the output shaft of the first driving motor, the upper end of the vertical rod is connected with one end of the transverse rod, and the other end of the transverse rod is connected with the sensor mounting piece.
5. The pulse-taking device mechanical finger as defined in any one of claims 1-4, wherein the first drive means comprises a second drive motor, an output shaft of the second drive motor being drivingly connected to an upper end of the upright.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910239090.2A CN109770874B (en) | 2019-03-27 | 2019-03-27 | Mechanical finger of pulse-taking instrument |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910239090.2A CN109770874B (en) | 2019-03-27 | 2019-03-27 | Mechanical finger of pulse-taking instrument |
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| CN109770874A CN109770874A (en) | 2019-05-21 |
| CN109770874B true CN109770874B (en) | 2024-08-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110200602B (en) * | 2019-06-27 | 2024-06-04 | 玉生堂慧中医科技有限公司 | Pulse information acquisition device |
| CN111904397A (en) * | 2020-08-14 | 2020-11-10 | 太原理工大学 | Finger-tip constant-pressure pulse diagnosis instrument signal acquisition system with controllable pressure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109303552A (en) * | 2018-11-15 | 2019-02-05 | 珠海市万瑙特健康科技有限公司 | Mechanical finger for pulse-taking instrument |
| CN209996308U (en) * | 2019-03-27 | 2020-01-31 | 珠海市万瑙特健康科技有限公司 | Pulse diagnosis instrument mechanical finger |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101033001B1 (en) * | 2009-11-24 | 2011-05-09 | 한국 한의학 연구원 | Robot device for measuring pulse wave using laser range finder and method for measuring pulse wave in using same |
| KR101310530B1 (en) * | 2012-07-18 | 2013-10-14 | 한국 한의학 연구원 | Apparatus and method to measure pulse |
| CN108078553B (en) * | 2017-12-28 | 2021-02-02 | 黄忠全 | High-precision intelligent pulse diagnosis instrument |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109303552A (en) * | 2018-11-15 | 2019-02-05 | 珠海市万瑙特健康科技有限公司 | Mechanical finger for pulse-taking instrument |
| CN209996308U (en) * | 2019-03-27 | 2020-01-31 | 珠海市万瑙特健康科技有限公司 | Pulse diagnosis instrument mechanical finger |
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Effective date of registration: 20201211 Address after: Room 1001, unit 3, building 1, No. 145, Mingzhu North Road, Xiangzhou District, Zhuhai City, Guangdong Province Applicant after: Zhimei Kangmin (Zhuhai) Health Technology Co.,Ltd. Address before: Room 702-2, 7th floor, No. 18 Futian Road, Xiangzhou District, Zhuhai City, Guangdong Province Applicant before: ZHUHAI WANNAOTE HEALTH TECHNOLOGY Co.,Ltd. |
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