CN106859623B - Air outlet base of electronic sphygmomanometer - Google Patents
Air outlet base of electronic sphygmomanometer Download PDFInfo
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- CN106859623B CN106859623B CN201611255593.1A CN201611255593A CN106859623B CN 106859623 B CN106859623 B CN 106859623B CN 201611255593 A CN201611255593 A CN 201611255593A CN 106859623 B CN106859623 B CN 106859623B
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- cavity
- seat body
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- air outlet
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
- A61B5/0225—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers the pressure being controlled by electric signals, e.g. derived from Korotkoff sounds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Biophysics (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Cardiology (AREA)
- Vascular Medicine (AREA)
- Ophthalmology & Optometry (AREA)
- Physiology (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
The invention relates to an air outlet seat of an electronic sphygmomanometer, which comprises a seat body, wherein a through cavity is arranged in the seat body along the axial direction of the seat body so as to form an air passage, and the cavity sequentially comprises a straight first cavity, a gradually narrowed conical second cavity and a straight third cavity, wherein the straight first cavity, the gradually narrowed conical second cavity and the straight third cavity extend from one end of the seat body to the other end of the seat body; a gap is formed between the second cavity and the first cavity, the diameter of the largest end face of the second cavity is smaller than that of the first cavity, and an elastic diaphragm wrapping the gap is connected between the second cavity and the first cavity; the diameter of the third cavity is equal to the diameter of the smallest end surface of the second cavity. According to the invention, the air passage is set to be in an irregular shape, so that the air forms consistent pressure at the outlet, and the elastic diaphragm is connected between the second cavity and the first cavity, so that the air passage can be expanded to contain more air when the air pressure is higher, the air release speed is consistent when the air pressure is higher and the air pressure is lower, the uniform air release is realized, and the accuracy and precision of blood pressure measurement are ensured.
Description
Technical Field
The invention relates to medical equipment, in particular to an electronic sphygmomanometer air outlet base.
Background
The electronic sphygmomanometer is a medical device for measuring blood pressure by using modern electronic technology and an indirect blood pressure measuring principle. The electronic sphygmomanometer is divided into arm type and wrist type; its technology has undergone the most primitive development of the first, second (arm use), third (wrist use). Electronic blood pressure meters have become the primary tool for home self-testing of blood pressure. Electronic blood pressure meters are also increasingly used in medical institutions such as hospitals.
The general sphygmomanometer mainly comprises a sphygmomanometer body and a cuff, wherein the sphygmomanometer body comprises an inflation pump, a pressure sensor, a quick deflation valve, a micro deflation valve, a PCB and the like, and all the parts are mutually connected through a connecting pipe. The cuff is filled with a certain amount of air by the inflator pump, then the cuff is slowly deflated through the miniature deflation valve, and the blood pressure is measured in the process of slowly deflating by the miniature deflation valve. The existing air release valve structure is as disclosed in chinese patent 201020276051.4, a plug body is arranged in a valve body, an adjusting plug is arranged in the plug body, a cut is arranged on a side wall of the plug body, and the size of the vent hole is controlled by adjusting the relative position relationship between the adjusting plug and the cut in the plug body to control the gas flow. The air release valve has the defect that the air release valve does not have adjustability in the working state, the size of an opening of the opening can be adjusted only once by adjusting the adjusting plug before the whole machine is installed, and because the opening is very small, the length of the opening in the length direction of the air release valve is generally 0.1-0.2 mm, the structure can cause that the air release speed is high when the pressure in the cuff is high and the air release speed is low when the pressure in the cuff is low, the air release curve is non-linear in the air release measurement process, and the accuracy and precision of blood pressure measurement are influenced.
In view of the above-mentioned drawbacks, the present designer has made active research and innovation to create a new air outlet seat of electronic sphygmomanometer, so that it has more industrial application value.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide an air outlet seat of an electronic sphygmomanometer, which can deflate at a constant speed.
The air outlet seat of the electronic sphygmomanometer comprises a seat body, wherein a through cavity is arranged in the seat body along the axial direction of the seat body to form an air passage, and the cavity sequentially comprises a straight first cavity, a tapered second cavity and a straight third cavity, wherein the straight first cavity, the tapered second cavity and the straight third cavity extend from one end of the seat body to the other end of the seat body; a gap is formed between the second cavity and the first cavity, the diameter of the largest end face of the second cavity is smaller than that of the first cavity, and an elastic diaphragm wrapping the gap is connected between the second cavity and the first cavity; the diameter of the third cavity is equal to the diameter of the smallest end face of the second cavity.
Furthermore, a fixed plate is sleeved on the outer wall of the seat body near the other end of the seat body, and two positioning columns perpendicular to the seat body are arranged at two ends of the fixed plate.
Furthermore, the other end of the seat body is in a tapered shape which is gradually narrowed.
Furthermore, the other end of the seat body is rounded.
Furthermore, an outer cover is sleeved at one end of the seat body, and the diameter of the outer cover gradually increases from one end to the other end and then keeps fixed and extends to the other end.
Further, one end of the outer cover is rounded.
Further, the second cavity has a cone angle of 62 °.
By means of the scheme, the air passage is set to be in the irregular shape, so that the air forms consistent pressure at the outlet, the elastic diaphragm is connected between the second cavity and the first cavity, the air passage can be expanded to contain more air when the air pressure is higher, the air release speed is consistent when the air pressure is higher and the air pressure is lower, the uniform air release is realized, and the accuracy and precision of blood pressure measurement are ensured.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
fig. 2 is a cross-sectional view of the present invention.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Referring to fig. 1 and 2, an outlet base of an electronic sphygmomanometer according to a preferred embodiment of the present invention includes a base 10, wherein a through cavity is disposed inside the base 10 along an axial direction thereof to form an air passage, and the cavity sequentially includes a straight first cavity 11 extending from one end of the base 10 to the other end, a tapered second cavity 12 narrowing gradually, and a straight third cavity 13; a gap 14 is formed between the second cavity 12 and the first cavity 11, the diameter of the largest end face of the second cavity 12 is smaller than that of the first cavity 11, and an elastic diaphragm 15 wrapping the gap 14 is connected between the second cavity 12 and the first cavity 11; the diameter of the third chamber 13 is equal to the diameter of the smallest end surface of the second chamber 12.
In the invention, the first cavity 11 is straight, so that gas can smoothly enter the air passage when the gas is exhausted; the use of a tapered second chamber 12 which narrows the air passage, limiting the flow of gas, which has been the same when the gas pressures are not uniform; meanwhile, in order to adapt to the situation that the gas pressure is high and ensure that the gas can be discharged at a set gas flow rate, the elastic diaphragm 15 wraps the gap 14, and the elasticity of the elastic diaphragm 15 and the gap 14 are used as buffer spaces, so that when the gas pressure is high, the elastic diaphragm 15 is stretched to accommodate more air, the gas discharging speed is consistent when the gas pressure is high and the gas pressure is low, and the uniform gas discharging is realized; after the air flow is controlled, the straight third cavity 13 is utilized to enable the air to form consistent pressure at the outlet, so that the exhaust speed is further consistent, and the accuracy and precision of blood pressure measurement are ensured.
Preferably, the second chamber 12 has a cone angle of 62 °, which can effectively collect the gas to be discharged and collect the gas when the gas pressure is low.
In order to install the base 10 in the sphygmomanometer, the outer wall of the base 10 is sleeved with a fixed plate 20 near the other end thereof, and two positioning posts 21 perpendicular to the base 10 are arranged at two ends of the fixed plate 20; the outer cover 30 is sleeved on one end of the seat body 10, and the diameter of the outer cover 30 gradually increases from one end to the other end and then keeps a fixed diameter extending to the other end. The outer cover with the structure has a guiding function, and is convenient to be quickly installed in the sphygmomanometer; the fixing plate and the positioning column play a role in positioning and fastening.
In order to reduce the volume of the sphygmomanometer, the other end of the housing 10 according to the present invention is tapered.
Preferably, in order to reduce the interference effect during installation, the other end of the housing 10 of the present invention is rounded, and one end of the outer cover 30 is also rounded.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (7)
1. An air outlet base of an electronic sphygmomanometer, which is characterized in that: the air-conditioning seat comprises a seat body, wherein a through cavity is arranged in the seat body along the axial direction of the seat body to form an air passage, and the cavity sequentially comprises a straight first cavity, a tapered second cavity and a straight third cavity, wherein the straight first cavity, the tapered second cavity and the straight third cavity extend from one end of the seat body to the other end of the seat body; a gap is formed between the second cavity and the first cavity, the diameter of the largest end face of the second cavity is smaller than that of the first cavity, and an elastic diaphragm wrapping the gap is connected between the second cavity and the first cavity; the diameter of the third cavity is equal to the diameter of the smallest end face of the second cavity.
2. The electronic sphygmomanometer air outlet base according to claim 1, wherein: the outer wall of the seat body is sleeved with a fixed plate near the other end of the seat body, and two positioning columns perpendicular to the seat body are arranged at two ends of the fixed plate.
3. The electronic sphygmomanometer air outlet base according to claim 1, wherein: the other end of the seat body is in a tapered shape which is gradually narrowed.
4. The electronic sphygmomanometer air outlet base according to claim 3, wherein: and the other end of the seat body is rounded.
5. The electronic sphygmomanometer air outlet base according to claim 1, wherein: the cover is equipped with the enclosing cover on one end of pedestal, the diameter of enclosing cover keeps fixed diameter to extend to the other end after its one end gradually increases to the other end.
6. The electronic sphygmomanometer air outlet base according to claim 5, wherein: one end of the outer cover is rounded.
7. The electronic sphygmomanometer air outlet base according to any one of claims 1 to 6, wherein: the second cavity has a cone angle of 62 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611255593.1A CN106859623B (en) | 2016-12-30 | 2016-12-30 | Air outlet base of electronic sphygmomanometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611255593.1A CN106859623B (en) | 2016-12-30 | 2016-12-30 | Air outlet base of electronic sphygmomanometer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106859623A CN106859623A (en) | 2017-06-20 |
| CN106859623B true CN106859623B (en) | 2019-12-31 |
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ID=59165138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611255593.1A Active CN106859623B (en) | 2016-12-30 | 2016-12-30 | Air outlet base of electronic sphygmomanometer |
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| Country | Link |
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| CN (1) | CN106859623B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3510205A1 (en) * | 1985-03-21 | 1986-09-25 | Blasius 7455 Jungingen Speidel | Blood pressure instrument |
| US5323806A (en) * | 1992-03-26 | 1994-06-28 | Matsushita Electric Works, Ltd. | Constant-speed exhaust valve device for hemadynamometer |
| CN2887249Y (en) * | 2006-01-28 | 2007-04-11 | 合世生医科技股份有限公司 | Pressure releasing stably unit in pressurization device for blood-pressure meter |
| CN200957085Y (en) * | 2006-01-28 | 2007-10-10 | 合世生医科技股份有限公司 | Large air bag with pressure releasing device slably and matched with sphygmomanometer |
| CN201775625U (en) * | 2010-07-26 | 2011-03-30 | 比亚迪股份有限公司 | Sphygmomanometer air release device and sphygmomanometer device |
| CN104173037A (en) * | 2014-09-09 | 2014-12-03 | 天津九安医疗电子股份有限公司 | Sphygmomanometer deflation core |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8083683B2 (en) * | 2007-10-19 | 2011-12-27 | Welch Allyn, Inc. | Dual lumen interchangeable monitor system |
-
2016
- 2016-12-30 CN CN201611255593.1A patent/CN106859623B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3510205A1 (en) * | 1985-03-21 | 1986-09-25 | Blasius 7455 Jungingen Speidel | Blood pressure instrument |
| US5323806A (en) * | 1992-03-26 | 1994-06-28 | Matsushita Electric Works, Ltd. | Constant-speed exhaust valve device for hemadynamometer |
| CN2887249Y (en) * | 2006-01-28 | 2007-04-11 | 合世生医科技股份有限公司 | Pressure releasing stably unit in pressurization device for blood-pressure meter |
| CN200957085Y (en) * | 2006-01-28 | 2007-10-10 | 合世生医科技股份有限公司 | Large air bag with pressure releasing device slably and matched with sphygmomanometer |
| CN201775625U (en) * | 2010-07-26 | 2011-03-30 | 比亚迪股份有限公司 | Sphygmomanometer air release device and sphygmomanometer device |
| CN104173037A (en) * | 2014-09-09 | 2014-12-03 | 天津九安医疗电子股份有限公司 | Sphygmomanometer deflation core |
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| Publication number | Publication date |
|---|---|
| CN106859623A (en) | 2017-06-20 |
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Effective date of registration: 20180824 Address after: 215000 10 New Town Road, Zhou Shi Town, Kunshan City, Suzhou, Jiangsu Applicant after: Kunshan QW Precision Technology Co., Ltd. Address before: 215000 218 Sheng Fan Road, Zhou Shi Town, Kunshan City, Suzhou, Jiangsu Applicant before: Kunshan friend moulding Co., Ltd. |
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