CN104173037A - Sphygmomanometer deflation core - Google Patents
Sphygmomanometer deflation core Download PDFInfo
- Publication number
- CN104173037A CN104173037A CN201410453449.3A CN201410453449A CN104173037A CN 104173037 A CN104173037 A CN 104173037A CN 201410453449 A CN201410453449 A CN 201410453449A CN 104173037 A CN104173037 A CN 104173037A
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- core
- core body
- glue
- air flue
- venting
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Abstract
The invention provides a sphygmomanometer deflation core. The sphygmomanometer deflation core is composed of a core seat, a rubber core body and a copper core body, wherein the core seat is provided with an air channel used for the passage of air; the rubber core body is placed in the air channel of the core seat; one end of an air channel in the rubber core body is closed, the other end of the air channel in the rubber core body is open, the side wall of the air channel in the rubber core body is provided with a cut, and the air channel in the rubber core body can be communicated with the air channel in the core seat through the cut; the copper core body is provided with an air channel used for the passage of air, and the copper core body is placed in the air channel in the rubber core body and is in interference fit with the rubber core body; the end, inserted in the copper core body, of the rubber core body, namely the open end of the rubber core body, is partially in interference fit with the core seat, and the opening of the cut is 2 mm-3 mm long in the radial direction of the rubber core body after installation of a sphygmomanometer. According to the sphygmomanometer with the deflation core adopted, the defect that in the prior art, a deflation core is unadjustable after the whole sphygmomanometer is installed is overcome, the adjustability of the deflation speed is achieved, linear deflation is achieved, and the accuracy and precision of blood pressure measurement are guaranteed.
Description
Technical field
The present invention relates to a kind of venting core, relate in particular to a kind of sphygomanometer venting core.
Background technology
Along with popularizing of home medical equipment application, sphygomanometer also progresses into huge numbers of families.General sphygomanometer is mainly made up of a sphygomanometer main body and a cuff, and sphygomanometer body interior comprises the parts such as inflator pump, pressure transducer, rapid-release valve, miniature vent valve and pcb board, between each several part, interconnects each other with connection tube.Inflator pump, by being full of in cuff after a certain amount of air, is slowly exitted by miniature vent valve, Measure blood pressure in the slow deflation course of miniature vent valve.Existing vent valve structure is as disclosed in Chinese patent 201020276051.4, valve body is built-in with cock body, and cock body is built-in with adjusts plug, on cock body sidewall, has otch, by adjustment adjust plug in cock body with the size of the relative position relation control passage of otch, to control gas flow.Such vent valve has a shortcoming, be that vent valve does not have adjustability under in working order, can only be before complete machine installation disposable adjust to fill in by adjustment the size of otch opening is adjusted, and because otch is very little for this reason, opening length on vent valve length direction is generally 0.1mm ~ 0.2mm, as Fig. 6 cuff internal pressure in miniature vent valve venting measuring process for this reason, the situation of change of the size of otch opening and venting speed, known its is subject to the openings of sizes that affects of air pressure to change less, because of cuff deflation, cuff inner air pressure is larger in earlier stage, bleed off after certain air, cuff inner air pressure is fewer and feweri, can cause that hour venting speed is slower for speed and cuff internal pressure when cuff internal pressure is exitted when large so plant structure, the curve of exitting in venting measuring process is non-linear, accuracy and the precision of blood pressure measurement are affected.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of sphygomanometer venting core, by core print seat, glue core and copper core composition, wherein, core print seat has the air flue passing through for gas, glue core is placed in core print seat air flue, glue in-core air flue one end is sealed on an end opening and glue core air flue sidewall otch, glue core air flue can be communicated with described core print seat air flue by otch, copper core has the air flue passing through for gas, copper core is placed in glue core air flue, copper core and glue core interference fit, glue core is inserting one end of copper core, be opening one end part with core print seat interference fit, after sphygomanometer installation, the opening of described otch is 2mm ~ 3mm in glue core diameter length upwards.
Wherein, glue core adopts the silica gel of shore hardness 30 ~ 40.
Wherein, glue core adopts the silica gel of shore hardness 35.
Wherein, glue core has the gradient of one 2 degree in the axial direction.
Beneficial effect of the present invention:
Sphygomanometer provided by the invention has solved the core of in the past exitting and has not had after complete machine installation the shortcoming of adjustability with venting core, realize the adjustability of venting speed, the constant airspeed that makes to exit in whole deflation course, has realized linear deflation, has ensured accuracy and the precision of blood pressure measurement;
The glue core of venting core provided by the invention is selected the silica gel of shore hardness 30 ~ 40, has effectively solved glue core elasticity too large, and hardness is too large, the slower shortcoming of glue core response speed in the time of air pressure change;
The glue mandrel of venting core provided by the invention is to the gradient that has 2 degree, and this gradient has increased the contact area of glue core and gas greatly, makes glue core under different pressures, react sensitiveer.
Brief description of the drawings
Fig. 1 is that sphygomanometer of the present invention forms block diagram.
Fig. 2 be in the embodiment of the present invention four-way with venting core annexation schematic diagram.
Fig. 3 is the structural representation of venting core of the present invention.
Fig. 4 is the size of sphygmomanometer girding of the present invention cuff internal pressure, otch opening in venting measuring process and the situation of change of venting speed.
Fig. 5 is the schematic diagram of venting core of the present invention.
Fig. 6 is the size of sphygmomanometer girding cuff internal pressure, otch opening in venting measuring process and the situation of change of venting speed of prior art.
Specific embodiment
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
embodiment 1:
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
As shown in Figure 1, sphygomanometer comprises sphygomanometer main body 10 and cuff, and sphygomanometer main body 10 inside comprise the parts such as inflator pump, pressure transducer, rapid-release valve and venting core, as shown in Figure 2, between each several part, interconnect each other with four-way 1 and connection tube.Inflator pump will be full of in cuff after a certain amount of air, and the gas in cuff is emitted from venting core 2, emits and in process, carries out blood pressure measurement at gas.
As shown in Figure 3, the operation principle of venting core 2 is: venting core 2 is by core print seat 3, glue core 4 and copper core 5 form, wherein, core print seat 3 has the air flue passing through for gas, glue core 4 is placed in core print seat air flue, glue core 4 has the air flue passing through for gas, the interior air flue of glue core 4 one end is sealed on an end opening and glue core air flue sidewall otch 6, glue core air flue can be communicated with described core print seat air flue by otch 6, copper core 5 is useful on the air flue that gas passes through, copper core 5 is placed in glue core air flue, glue core 4 one end part that has copper core 5 to insert with core print seat 3 interference fit, copper core 5 and glue core 4 interference fit, glue core 4 is inserting one end of copper core 5, be opening one end part with core print seat 3 interference fit, copper core 5 has external screw thread and spiral shell to enter glue core air flue in the one end of inserting glue core 4, by adjusting the size of the length control otch that is screwed into glue core air flue of copper core 5, to change the air leakage amount of otch.
In the present embodiment, because the opening of otch 6 is 2mm ~ 3mm in glue core diameter length upwards after sphygomanometer installation, opening is larger, and glue core selects is the soft silica gel of shore hardness 30 ~ 40, wherein the preferred soft silica gel of shore hardness 35; Therefore otch 6 is triangular shape under naturalness, the duty of otch 6 in sphygomanometer venting measuring process is: in the time that cuff internal gas pressure pressure is higher, this triangular shape otch 6 is extruded the openings get smaller that makes otch 6, along with the opening of the decline triangular shape otch 6 of cuff internal gas pressure becomes greatly gradually, finally get back to original state.
Be illustrated in figure 4 the size of sphygmomanometer girding opening of cuff internal pressure, otch 6 in venting measuring process and the situation of change of venting speed of the present embodiment.In the time that cuff internal gas pressure pressure is higher, otch 6 is extruded and is out of shape the openings get smaller that makes otch 6, along with the opening of the decline triangular shape otch 6 of cuff internal gas pressure becomes large gradually, finally get back to original state, in whole deflation course, reached air pressure when large otch 6 opening opening little and air pressure hour otch 6 large, constant airspeed makes to exit in whole deflation course, form the deflation characteristic of linear deflation, thereby realized sphygomanometer and exit to ensure at venting measuring process neutral line accuracy and the precision of blood pressure measurement.
As shown in Figure 5, the gradient that axially has 2 degree of the glue core 4 of venting core 2, this gradient has increased the contact area of glue core 4 with gas greatly, makes glue core 4 under different pressures, react sensitiveer.
Claims (4)
1. a venting core for sphygomanometer, by core print seat, glue core and copper core composition, wherein, core print seat has the air flue passing through for gas, glue core is placed in core print seat air flue, glue in-core air flue one end is sealed on an end opening and glue core air flue sidewall otch, glue core air flue can be communicated with described core print seat air flue by otch, copper core has the air flue passing through for gas, copper core is placed in glue core air flue, copper core and glue core interference fit, glue core is inserting one end of copper core, be opening one end part with core print seat interference fit, it is characterized in that: after sphygomanometer installation, the opening of described otch is 2mm ~ 3mm in glue core diameter length upwards.
2. venting core for sphygomanometer according to claim 1, is characterized in that: described glue core adopts the silica gel of shore hardness 30 ~ 40.
3. venting core for sphygomanometer according to claim 2, is characterized in that: described glue core adopts the silica gel of shore hardness 35.
4. venting core for sphygomanometer according to claim 1 and 2, is characterized in that: described glue core has the gradient of one 2 degree in the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410453449.3A CN104173037A (en) | 2014-09-09 | 2014-09-09 | Sphygmomanometer deflation core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410453449.3A CN104173037A (en) | 2014-09-09 | 2014-09-09 | Sphygmomanometer deflation core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104173037A true CN104173037A (en) | 2014-12-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410453449.3A Pending CN104173037A (en) | 2014-09-09 | 2014-09-09 | Sphygmomanometer deflation core |
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| Country | Link |
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| CN (1) | CN104173037A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104523257A (en) * | 2014-12-22 | 2015-04-22 | 天津九安医疗电子股份有限公司 | Integrated pump valve module |
| CN106859623A (en) * | 2016-12-30 | 2017-06-20 | 昆山友斯克模塑有限公司 | A kind of electronic sphygmomanometer air outlet base |
| CN107991021A (en) * | 2018-02-02 | 2018-05-04 | 安阳县质量技术监督检验测试中心 | A kind of electronic sphygmomanometer static pressure measures special joint |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5467772A (en) * | 1992-06-16 | 1995-11-21 | Terumo Kabushiki Kaisha | Automatic sphygmomanometer |
| CN2522032Y (en) * | 2002-01-21 | 2002-11-27 | 得康医疗器材股份有限公司 | Control valve capable of leaking gas |
| CN201668385U (en) * | 2010-05-19 | 2010-12-15 | 深圳市万康佳健科技有限公司 | Low-speed air release valve with adjustable pressure-releasing linearity |
| CN201775627U (en) * | 2010-07-26 | 2011-03-30 | 比亚迪股份有限公司 | Controllable release valve and electronic sphygmomanometer adopting the same |
| CN202426517U (en) * | 2011-11-24 | 2012-09-12 | 上海由泰医疗器械科技有限公司 | Special adjustable constant-speed air-release valve for sphygmomanometer |
| CN102793537A (en) * | 2012-09-05 | 2012-11-28 | 天津九安医疗电子股份有限公司 | Mini-type air release valve |
| CN204121008U (en) * | 2014-09-09 | 2015-01-28 | 天津九安医疗电子股份有限公司 | A kind of sphygomanometer venting core |
-
2014
- 2014-09-09 CN CN201410453449.3A patent/CN104173037A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5467772A (en) * | 1992-06-16 | 1995-11-21 | Terumo Kabushiki Kaisha | Automatic sphygmomanometer |
| CN2522032Y (en) * | 2002-01-21 | 2002-11-27 | 得康医疗器材股份有限公司 | Control valve capable of leaking gas |
| CN201668385U (en) * | 2010-05-19 | 2010-12-15 | 深圳市万康佳健科技有限公司 | Low-speed air release valve with adjustable pressure-releasing linearity |
| CN201775627U (en) * | 2010-07-26 | 2011-03-30 | 比亚迪股份有限公司 | Controllable release valve and electronic sphygmomanometer adopting the same |
| CN202426517U (en) * | 2011-11-24 | 2012-09-12 | 上海由泰医疗器械科技有限公司 | Special adjustable constant-speed air-release valve for sphygmomanometer |
| CN102793537A (en) * | 2012-09-05 | 2012-11-28 | 天津九安医疗电子股份有限公司 | Mini-type air release valve |
| CN204121008U (en) * | 2014-09-09 | 2015-01-28 | 天津九安医疗电子股份有限公司 | A kind of sphygomanometer venting core |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104523257A (en) * | 2014-12-22 | 2015-04-22 | 天津九安医疗电子股份有限公司 | Integrated pump valve module |
| CN106859623A (en) * | 2016-12-30 | 2017-06-20 | 昆山友斯克模塑有限公司 | A kind of electronic sphygmomanometer air outlet base |
| CN106859623B (en) * | 2016-12-30 | 2019-12-31 | 昆山群威精密科技有限公司 | Air outlet base of electronic sphygmomanometer |
| CN107991021A (en) * | 2018-02-02 | 2018-05-04 | 安阳县质量技术监督检验测试中心 | A kind of electronic sphygmomanometer static pressure measures special joint |
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Application publication date: 20141203 |
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