CN202859787U - Micro-dose flow velocity regulator and infusion apparatus thereof - Google Patents
Micro-dose flow velocity regulator and infusion apparatus thereof Download PDFInfo
- Publication number
- CN202859787U CN202859787U CN201220444699.7U CN201220444699U CN202859787U CN 202859787 U CN202859787 U CN 202859787U CN 201220444699 U CN201220444699 U CN 201220444699U CN 202859787 U CN202859787 U CN 202859787U
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- upper shell
- shell body
- flow velocity
- core body
- lower house
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Abstract
The utility model relates to a micro-dose flow velocity regulator. The micro-dose flow velocity regulator comprises an upper shell body, a core body and a lower shell body. The upper shell body is provided with a liquid inlet pipe. The upper shell body is provided with a check ring, and the check ring is located under the liquid inlet pipe. Annular grooves are formed in the check ring, the bore diameters of the grooves gradually increase, and the heads of the grooves and the tails of the grooves are not communicated. A liquid passing hole is formed in the core body. The liquid passing hole and the annular grooves are communicated or closed through the mutual rotating between the upper shell body and the lower shell body. A liquid outlet pipe which is communicated with the liquid passing hole is formed in the lower shell body. The cross section of the upper shell body is in a regular polygon shape. An outer ring which is arranged on the lower shell body contacts, matches with the upper shell body and is in a regular polygon shape. The upper shell body is provided with marking lines. Each edge of the regular polygon of the lower shell body is marked with corresponding flow velocity marks. The micro-dose flow velocity regulator is capable of accurately controlling the flow velocity and avoiding faulty operation. The regular polygons are designed to be distributed according to the characteristics of the flow velocity. When the upper shell body rotates and two polygons match with each other, the flow velocity is the scale mark value which corresponds with the marking line. The micro-dose flow velocity regulator is safe and reliable to use.
Description
Technical field
This utility model relates to the transfusion device technical field, especially a kind of little dosage flow regulator and transfusion device thereof.
Background technology
Transfusion device is mainly used in the medical treatment consumptive materials process aseptic process, that set up passage between vein and the medicinal liquid of venous transfusion.Generally connected to form by intravenous needle, helmet, infusion tube, liquid medicine filter, flow regulator, a kettle, bottle plug puncture unit, air inlet pipe air filter.
For some special diseases, need to adopt little dosage injection, if flow speed control is improper, too fast mistake all can affect bearing of patient slowly, and especially patient's heart be can't stand after the excessive velocities, has pain, even bring out death, report was once arranged, when the U.S. has the patient to carry out little dosage transfusion, caused dead case because flow speed control is improper.US5836923 discloses a kind of little dosage flow regulator, and flow regulator can be regulated from 5-250ml/h, selects according to different patients and the state of an illness.But it is cylindrical that this actuator is roughly, select flow velocity by rotation, cylinder is marked with graticule, the scale numerical value that this graticule is aimed at during selection is the flow velocity of this position, when selecting 250ml/h, it is not the Peak Flow Rate value of this actuator, because of when producing, reserved the standard-sized sheet position, carry out the ventilation test of pipeline, and this standard-sized sheet position is positioned at the extended spot of 250ml/h position, accidentally can open during operation to the standard-sized sheet position, moment, flow velocity reached 2500ml/h from 250ml/h, very likely the patient caused irremediable impact.Because of the imperfection of structural design, this situation finds time and again, caused the product undercarriage of American market again and recalled case.
The utility model content
The technical problems to be solved in the utility model is: overcome the deficiency in the prior art, a kind of flow regulator for disposable little dosage transfusion device is provided, accurately coutroi velocity is avoided maloperation, and is safe and reliable.
The technical scheme that its technical problem that solves this utility model adopts is: a kind of little dosage flow regulator, comprise upper shell, core body and lower house, upper shell and lower house are rotatable to be connected, described core body is positioned at the enclosed cavity of upper shell and lower house composition, it is characterized in that: described upper shell is provided with feed tube, be positioned at the feed tube below on the upper shell and have a back-up ring, offer the aperture on the back-up ring and become gradually the large disconnected cannelure of head and the tail from little, have a liquid-through hole on the core body, described liquid-through hole and cannelure are realized being communicated with or sealing with mutual rotation between lower house by upper shell, has the drain pipe that is connected with liquid-through hole on the described lower house, the cross section of described upper shell is regular polygon, be the regular polygon that matches with upper shell with the contacted outer ring of upper shell on the lower house, described upper shell is provided with graticule, and each limit of the regular polygon of described lower house is marked with corresponding flow scale labelling.
Further, for preventing maloperation, offer the all-pass hole of carrying out tube for transfusion ventilation test or sealing test between the two ends of described cannelure, be totally-enclosed district between all-pass hole and the cannelure osculum end, zone on the back-up ring between all-pass hole and cannelure big opening end is provided with barrier blocks, and described core body is provided with when preventing the upper shell rotation and further rotates the barrier flaps that all-pass hole and liquid-through hole are connected from the cannelure big opening end.When the totally-enclosed district on the back-up ring was positioned at the liquid-through hole place, flow regulator was in locking states, if with the test of ventilating, then by rotation the all-pass hole is communicated with liquid-through hole, be the full-mesh state at this moment, the test of can ventilating; When needs carry out little dosage transfusion, go to begin to begin rotation toward cannelure osculum end from totally-enclosed, select suitable flow velocity, when rotating to maximum opening, contact preventing by barrier blocks and barrier flaps is further selected, avoid all-pass hole and liquid-through hole to connect, reach the purpose of avoiding malpractice.
According to actual needs, can select, described regular polygon is positive 6-20 limit shape.
For avoiding maloperation as far as possible, described upper shell be diameter 30mm circle in connect regular polygon.Larger diameter can adopt to add large-scale graticule and scale mark so that easy to operate.
Described core body is the flexible sealing cushion rubber, also is provided with projection and/or groove on the outer ring of core body, has the groove that is complementary with core body on the described lower house.
A kind of transfusion device that adopts above-mentioned little dosage flow regulator, mainly be in series by infusion tube by bottle plug puncture unit, air inlet pipe air filter, a kettle, liquid medicine filter and intravenous needle, be provided with above-mentioned little dosage flow regulator between described kettle and the liquid medicine filter, the feed tube of described little dosage flow regulator is communicated with a kettle by infusion tube, and drain pipe is communicated with liquid medicine filter by infusion tube.
The beneficial effects of the utility model are, little dosage flow regulator of the present utility model and transfusion device thereof, the accurate coutroi velocity of energy, and be convenient to patient or medical personnel and carry out the flow velocity selection, avoid maloperation, avoid the generation of malpractice, the characteristic of polygonal design consideration flow velocity distributes, when two polygons mated mutually when upper shell rotated, flow velocity was scale mark value corresponding to graticule, used safety and reliability.
Description of drawings
Below in conjunction with drawings and Examples this utility model is further specified.
Fig. 1 is the assembling stereogram of the most preferred embodiment of little dosage flow regulator of the present utility model;
Fig. 2 is the blast axonometric chart of the most preferred embodiment of little dosage flow regulator of the present utility model;
Fig. 3 is the axonometric chart at another visual angle of the most preferred embodiment of little dosage flow regulator of the present utility model;
Fig. 4 is the sectional arrangement drawing of the most preferred embodiment of little dosage flow regulator of the present utility model;
Fig. 5 is the explosion type sectional arrangement drawing of the most preferred embodiment of little dosage flow regulator of the present utility model;
Fig. 6 is the axonometric chart of upper shell described in the utility model;
Fig. 7 is the upward view of upper shell described in the utility model.
Among the figure: 1. upper shell, 11. feed tubes, 12. back-up rings, 13. cannelures, 14. all-pass holes, 15. barrier blocks, 16. graticules, 2. core body, 21. liquid-through holes, 22. barrier flaps, 3. lower house, 31. drain pipes.
The specific embodiment
By reference to the accompanying drawings this utility model is described in further detail now.These accompanying drawings are the sketch map of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with this utility model.
Shown in Fig. 1-7, the most preferred embodiment of little dosage flow regulator of the present utility model, comprise upper shell 1, core body 2 and lower house 3, upper shell 1 and lower house 3 rotatable being connected, core body 2 is positioned at the enclosed cavity of upper shell 1 and lower house 3 compositions, upper shell 1 is provided with feed tube 11, be positioned at feed tube 11 belows on the upper shell 1 and have a back-up ring 12, offer the aperture on the back-up ring 12 and become gradually the large disconnected cannelure 13 of head and the tail from little, have a liquid-through hole 21 on the core body 2, liquid-through hole 21 is realized being communicated with or sealing with the mutual rotation of cannelure 13 by 3 of upper shell 1 and lower houses, has the drain pipe 31 that is connected with liquid-through hole 21 on the lower house 3, the cross section of upper shell 1 is regular polygon, be the regular polygon that matches with upper shell 1 with upper shell 1 contacted outer ring on the lower house 3, upper shell 1 is provided with graticule 16, and each limit of the regular polygon of described lower house 3 is marked with corresponding flow scale labelling.
Offer the all-pass hole 14 of carrying out tube for transfusion ventilation test or sealing test between the two ends of cannelure 13, be totally-enclosed district between all-pass hole 14 and the cannelure 13 osculum ends, zone on the back-up ring 12 between all-pass hole 14 and cannelure 13 big opening ends is provided with barrier blocks 15, and core body 2 is provided with when preventing upper shell 1 rotation and further rotates the barrier flaps 22 that all-pass hole 14 and liquid-through hole 21 are connected from cannelure 13 big opening ends.
Regular polygon is positive 6-18 limit shape.Can select according to actual needs the design of different edge type, satisfy the flow velocity requirement of the different infusion flows of not enough disease.
For prevent maloperation as far as possible, upper shell 1 is for connecing regular polygon in the diameter 30mm circle.
The most preferred, core body 2 is the flexible sealing cushion rubber, also be provided with projection and/or groove on the outer ring of core body 2, has the groove that is complementary with core body 2 on the lower house 3, avoid finding mutual rotation between core body and the lower house, liquid-through hole 21 on the core body 2 matches with cannelure 13, the variation of the aperture area that cannelure 13 is connected with liquid-through hole 21 when rotated realizes the variation of flow velocity, thereby realize the adjusting of flow velocity, because cannelure 13 head and the tail are not communicated with, so obstructed zone is for closing closed region, back-up ring 12 is offered hole, standard-sized sheet position on class as required, is convenient to transfusion device and carries out sealing test and path testing.
A kind of transfusion device that adopts above-mentioned little dosage flow regulator, mainly be in series by infusion tube by bottle plug puncture unit, air inlet pipe air filter, a kettle, liquid medicine filter and intravenous needle, be provided with above-mentioned little dosage flow regulator between described kettle and the liquid medicine filter, the feed tube 11 of described little dosage flow regulator is communicated with a kettle by infusion tube, and drain pipe 31 is communicated with liquid medicine filter by infusion tube.
Claims (6)
1. little dosage flow regulator, comprise upper shell (1), core body (2) and lower house (3), upper shell (1) and rotatable being connected of lower house (3), described core body (2) is positioned at the enclosed cavity of upper shell (1) and lower house (3) composition, it is characterized in that: described upper shell (1) is provided with feed tube (11), be positioned at feed tube (11) below on the upper shell (1) and have a back-up ring (12), offer the aperture on the back-up ring (12) and become gradually the large disconnected cannelure of head and the tail (13) from little, have a liquid-through hole (21) on the core body (2), described liquid-through hole (21) and cannelure (13) are realized being communicated with or sealing with mutual rotation between lower house (3) by upper shell (1), has the drain pipe (31) that is connected with liquid-through hole (21) on the described lower house (3), the cross section of described upper shell (1) is regular polygon, lower house (3) is upper to be the regular polygon that matches with upper shell (1) with the contacted outer ring of upper shell (1), described upper shell (1) is provided with graticule (16), and each limit of the regular polygon of described lower house (3) is marked with corresponding flow scale labelling.
2. little dosage flow regulator as claimed in claim 1, it is characterized in that: offer the all-pass hole (14) of carrying out tube for transfusion ventilation test or sealing test between the two ends of described cannelure (13), be totally-enclosed district between all-pass hole (14) and cannelure (13) the osculum end, the zone that is positioned on the back-up ring (12) between all-pass hole (14) and cannelure (13) big opening end is provided with barrier blocks (15), and described core body (2) is provided with when preventing upper shell (1) rotation and further rotates the barrier flaps (22) that all-pass hole (14) and liquid-through hole (21) are connected from cannelure (13) big opening end.
3. little dosage flow regulator as claimed in claim 1, it is characterized in that: described regular polygon is positive 6-20 limit shape.
4. such as claim 1 or 2 or 3 described little dosage flow regulators, it is characterized in that: described upper shell (1) is for connecing regular polygon in the diameter 30mm circle.
5. little dosage flow regulator as claimed in claim 4, it is characterized in that: described core body (2) is the flexible sealing cushion rubber, also be provided with projection and/or groove on the outer ring of core body (2), have the groove that is complementary with core body (2) on the described lower house (3).
6. the transfusion device of an employing such as each described little dosage flow regulator of claim 1-5, mainly be in series by infusion tube by bottle plug puncture unit, air inlet pipe air filter, a kettle, liquid medicine filter and intravenous needle, it is characterized in that: be provided with above-mentioned little dosage flow regulator between described kettle and the liquid medicine filter, the feed tube of described little dosage flow regulator (11) is communicated with a kettle by infusion tube, and drain pipe (31) is communicated with liquid medicine filter by infusion tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220444699.7U CN202859787U (en) | 2012-09-03 | 2012-09-03 | Micro-dose flow velocity regulator and infusion apparatus thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220444699.7U CN202859787U (en) | 2012-09-03 | 2012-09-03 | Micro-dose flow velocity regulator and infusion apparatus thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202859787U true CN202859787U (en) | 2013-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220444699.7U Withdrawn - After Issue CN202859787U (en) | 2012-09-03 | 2012-09-03 | Micro-dose flow velocity regulator and infusion apparatus thereof |
Country Status (1)
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| CN (1) | CN202859787U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102813978A (en) * | 2012-09-03 | 2012-12-12 | 江苏艾信兰生物医药科技有限公司 | Regulator for micro-dose flow velocity and transfusion set thereof |
| CN103418056A (en) * | 2012-09-21 | 2013-12-04 | 美昕医疗器械(昆山)有限公司 | Infusion adjusting device capable of controlling liquid medicine drop weights |
| CN103785082A (en) * | 2014-02-26 | 2014-05-14 | 上海康德莱企业发展集团医疗器械有限公司 | Precision flow regulating device |
| CN106714765A (en) * | 2014-09-18 | 2017-05-24 | 弗雷森纽斯医疗护理德国有限责任公司 | A device for connecting a puncturable vial to a container or to a fluid line and transfer of the contents of a puncturable vial into a container or into a fluid line, and method therefor and use of such device |
| CN107606209A (en) * | 2017-10-20 | 2018-01-19 | 新乡市华航航空液压设备有限公司 | A kind of high-precision continuously adjustabe tubular type choke valve |
| CN111420169A (en) * | 2020-04-09 | 2020-07-17 | 广州医科大学附属肿瘤医院 | Side hole needle head |
-
2012
- 2012-09-03 CN CN201220444699.7U patent/CN202859787U/en not_active Withdrawn - After Issue
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102813978A (en) * | 2012-09-03 | 2012-12-12 | 江苏艾信兰生物医药科技有限公司 | Regulator for micro-dose flow velocity and transfusion set thereof |
| CN102813978B (en) * | 2012-09-03 | 2014-03-19 | 江苏艾信兰生物医药科技有限公司 | Regulator for micro-dose flow velocity and transfusion set thereof |
| CN103418056A (en) * | 2012-09-21 | 2013-12-04 | 美昕医疗器械(昆山)有限公司 | Infusion adjusting device capable of controlling liquid medicine drop weights |
| CN103418056B (en) * | 2012-09-21 | 2015-12-30 | 美昕医疗器械(昆山)有限公司 | Control the infusion adjusting device of drop weight of medicament liquid |
| CN103785082A (en) * | 2014-02-26 | 2014-05-14 | 上海康德莱企业发展集团医疗器械有限公司 | Precision flow regulating device |
| CN103785082B (en) * | 2014-02-26 | 2017-09-19 | 上海康德莱企业发展集团医疗器械有限公司 | A kind of delicate flow adjusting means |
| CN106714765A (en) * | 2014-09-18 | 2017-05-24 | 弗雷森纽斯医疗护理德国有限责任公司 | A device for connecting a puncturable vial to a container or to a fluid line and transfer of the contents of a puncturable vial into a container or into a fluid line, and method therefor and use of such device |
| CN107606209A (en) * | 2017-10-20 | 2018-01-19 | 新乡市华航航空液压设备有限公司 | A kind of high-precision continuously adjustabe tubular type choke valve |
| CN111420169A (en) * | 2020-04-09 | 2020-07-17 | 广州医科大学附属肿瘤医院 | Side hole needle head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130410 Effective date of abandoning: 20140319 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130410 Effective date of abandoning: 20140319 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |