CN102698324A - Negative pressure suction device - Google Patents
Negative pressure suction device Download PDFInfo
- Publication number
- CN102698324A CN102698324A CN2012101250344A CN201210125034A CN102698324A CN 102698324 A CN102698324 A CN 102698324A CN 2012101250344 A CN2012101250344 A CN 2012101250344A CN 201210125034 A CN201210125034 A CN 201210125034A CN 102698324 A CN102698324 A CN 102698324A
- Authority
- CN
- China
- Prior art keywords
- negative pressure
- air source
- pressure air
- suction device
- flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- External Artificial Organs (AREA)
Abstract
The invention discloses a negative pressure suction device comprising a box body and a negative pressure generator arranged in the box body, wherein a high-pressure air source connector on the negative pressure generator is provided with a flow adjusting device; the flow adjusting device comprises a valve needle seat, a valve needle, a connecting rod and an adjusting handle; the valve needle, the connecting rod and the adjusting handle are internally arranged; the valve needle and the adjusting handle are respectively connected with the two ends of the connecting rod; an outer thread is arranged on the surface of the connecting rod; the high-pressure air source connector comprises a first high-pressure air source channel, a second high-pressure air source channel and a flow adjusting hole; the flow adjusting hole is respectively vertically communicated with the first high-pressure air source channel and the second high-pressure air source channel; a surrounding face of the flow adjusting hole is provided with an inner thread adaptive to the outer thread; the valve needle seat is arranged in the flow adjusting hole in a sealed manner and is located above the first high-pressure air source channel and below the second high-pressure air source channel; a matching face of the valve needle and the valve needle seat is a tapered face; and the adjusting handle is arranged at the outer side of the box body. According to the negative pressure suction device, the adjustment of a negative pressure valve is realized by adjusting a gap between the valve needle and the valve needle seat.
Description
Technical field
The present invention relates to field of medical, specially refer to a kind of negative pressure suction device.
Background technology
Negative pressure suction device is the indispensable a kind of armarium of hospital, is mainly used in gastric lavage, sucks blood, absorbs water, inhales pus, inhales expectorant, inhales bone bits, soil pick-up thing, practise midwifery and miscarriage etc.Existing negative pressure suction device has central negative pressure to attract, manually attract and electronic attraction, but these negative pressure suction devices all come with some shortcomings.
It is that the central negative pressure station provides negative pressure through terminal interfaces such as tower crane, equipment bands that central negative pressure attracts, and shortcoming is: can only be not suitable for open-air and mobile transhipment work in the hospital department that is provided with central negative pressure station and terminal interface; Need to be equipped with specific negative pressure adjusting device and be connected with interface, it is complicated in case of emergency to connect debugging; And when having a power failure negative pressure can not be provided at the central negative pressure station.
Simple and easy suction pump through manually, foot-operated or spring plastics attract bag to realize negative pressure, are used for reaching among a small circle under the open-air power free situation urgent rescue and use, shortcoming is that capacity is little, workload is big during long-term manual operation.
Electric suction apparatus is through the electronic negative pressure that provides of devices such as vacuum pump, piston, and shortcoming is to depend on the power supply power supply.
Summary of the invention
Main purpose of the present invention provides the adjustable negative pressure suction device of a kind of negative pressure value.
A kind of negative pressure suction device that the embodiment of the invention provides; Comprise casing and be arranged on the intravital negative pressure generator of case; The high-pressure air source interface of said negative pressure generator is provided with flow regulator; Said flow regulator comprises needle seat and the needle that is wholely set, connecting rod and adjusting tap; Said needle and said adjusting tap are connected to the two ends of said connecting rod, and the surface of said connecting rod is provided with external screw thread, and said high-pressure air source interface comprises the first high-pressure air source passage, the second high-pressure air source passage and Flow-rate adjustment hole; Said Flow-rate adjustment hole is communicated with said first high-pressure air source passage and the said second high-pressure air source channel vertical respectively; The enveloping surface in said Flow-rate adjustment hole is provided with the female thread adaptive with said external screw thread, and said needle seat sealing is arranged in the said Flow-rate adjustment hole, and is positioned at the top of the said first high-pressure air source passage and the below of the said second high-pressure air source passage; The mating surface of said needle and said needle seat is the conical surface, and said adjusting tap is arranged on the outside of said casing.
Preferably, this negative pressure suction device also comprises the vacuum table on the negative pressure interface that is arranged on said negative pressure generator, and said vacuum table is used to detect and show the negative pressure value of said negative pressure seam.Said vacuum table is that noctilucence shows vacuum table.
Preferably, this negative pressure suction device also comprises intervalometer, controls the switch gap time of said negative pressure interface negative pressure.
Preferably, the high-pressure air source of said high-pressure air source interface connection is any in central air feed, gas cylinder and the air compressor machine.
Preferably, also be connected with the overflow cup on the said negative pressure interface, be used to prevent that the waste liquid collection from completely flowing backwards the back, guarantee the safety of gas piping.
The present invention is provided with flow regulator on the high-pressure air source interface; Regulate needle and the gap between the needle seat through adjusting tap and control gases at high pressure in the first high-pressure air source passage and whether flow in the second high-pressure air source passage and the gases at high pressure in the first high-pressure air source passage flow into the flow in the second high-pressure air source passage, so come to control indirectly the negative pressure value of the negative pressure seam on the flow regulator.
Description of drawings
Fig. 1 is the structural representation of embodiment of the invention negative pressure suction device;
Fig. 2 is installed in the cutaway view in the high-pressure air source interface for the flow regulator in the embodiment of the invention negative pressure suction device.
The realization of the object of the invention, functional characteristics and advantage will combine embodiment, further specify with reference to accompanying drawing.
The specific embodiment
The embodiment of the invention provides a kind of negative pressure suction device; See figures.1.and.2; Fig. 1 is the structural representation of embodiment of the invention negative pressure suction device, and Fig. 2 is installed in the cutaway view in the high-pressure air source interface for the flow regulator in the embodiment of the invention negative pressure suction device.Negative pressure suction device of the present invention comprises negative pressure generator 1, flow regulator 2 and casing 4; Negative pressure generator 1 is arranged in the casing 4; Negative pressure generator 1 is provided with high-pressure air source interface 11, negative pressure interface 12 and positive pressure interface 13, and through high-pressure air source interface 11, negative pressure interface 12 and positive pressure interface 13 and external communications.Flow regulator 2 comprises needle 21, connecting rod 22, adjusting tap 23 and needle seat 24; Needle 21, connecting rod 22 and adjusting tap 23 are structure as a whole; Needle 21 and adjusting tap 23 are connected to the two ends of connecting rod 22; The outer surface of connecting rod 22 is provided with external screw thread, and adjusting tap 23 is arranged on the outside of casing 4.High-pressure air source interface 11 comprises the first high-pressure air source passage 111, the second high-pressure air source passage 112 and Flow-rate adjustment hole 113; Flow-rate adjustment hole 113 respectively with the first high-pressure air source passage 111 and the second high-pressure air source passage, 112 vertical connections, the enveloping surface in Flow-rate adjustment hole 113 be provided with connecting rod 22 on the adaptive female thread of external screw thread.The first high-pressure air source passage 111 and the second high-pressure air source passage 112 laterally arrange and the first high-pressure air source passage 111 is positioned at the below of the second high-pressure air source passage 112.24 sealings of needle seat are arranged in the Flow-rate adjustment hole 113, and are positioned at the top and the second high-pressure air source passage, 112 belows of the first high-pressure air source passage 111, the mating surface position conical surface of needle seat 24 and needle 21.
When rotation adjusting handle 23, the external screw thread on the connecting rod 22 is spinned to move along the female thread on the enveloping surface in Flow-rate adjustment hole 113 and needle 21 relative needle seats 24 are moved downward or is moved upward.When needle 21 is fitted with needle seat 24; Be that gap between needle 21 and the needle seat 24 is 0; The first high-pressure air source passage 111 is not communicated with the second high-pressure air source passage 112, and the gases at high pressure in the first high-pressure air source passage 111 can't flow in the second high-pressure air source passage 112; When having the gap between needle 21 and the needle seat 24; The first high-pressure air source passage 111 is communicated with the second high-pressure air source passage 112; Gases at high pressure in the first high-pressure air source passage 111 flow in second high-pressure air source, 112 passages; Through regulating the size in the gap between needle 21 and the needle seat 24, can regulate gases at high pressure flow into the second high-pressure air source passage 112 from the first high-pressure air source passage 111 flow.
The present invention is provided with flow regulator 2 on high-pressure air source interface 11; Regulate needles 21 and the gap between the needle seat 24 through adjusting tap 23 and control gases at high pressure in the first high-pressure air source passage 111 and whether flow in the second high-pressure air source passage 112 and the gases at high pressure in the first high-pressure air source passage 111 flow into the flow in the second high-pressure air source passage 112, so come to control indirectly the negative pressure value of the negative pressure seam on the flow regulator 2.
For can be according to the negative pressure value at negative pressure interface 12 places; Needle 21 in the adjusting flow regulator 2 and the gap length between the needle seat 24; The gases at high pressure of promptly regulating in the first high-pressure air source passage 111 flow into the flow in the second high-pressure air source passage 112, need learn the negative pressure value at negative pressure interface 12 places.In embodiments of the present invention, this negative pressure suction device also comprises the vacuum table 3 on the negative pressure interface 12 that is arranged on negative pressure generator 2, and vacuum table 3 is used to detect and show the negative pressure value at negative pressure interface 12 places.
In order to make this negative pressure suction device be suitable for accurately reading the negative pressure value that vacuum table 3 is shown in the open air or under the situation of electricity failure at night night, and regulate needle 21 and the gap length between the needle seat 24 in the flow regulator 2 according to the negative pressure value that reads.In embodiments of the present invention, this vacuum table 3 shows vacuum table for noctilucence.
In order accurately to control the blanking time of negative pressure interface and outside conducting and disconnection, make the successive work of this negative pressure suction device.In specific embodiment, this negative pressure suction device also comprises intervalometer, is used to control the switch gap time of negative pressure interface negative pressure.
Because negative pressure suction device of the present invention is simple in structure, volume is less, is easy to carry and is connected, as long as there is high-pressure air source just can be suitable for this negative pressure suction device, does not make excessive demands the environment that central negative pressure station and terminal interface thereof are arranged.In specific embodiment, high-pressure air source is any in central air feed, gas cylinder and the air compressor machine, and perhaps central air feed, gas cylinder and air compressor machine are used alternatingly.
Sucking blood, absorb water, inhale pus, inhale expectorant, inhaling in the operations such as bone bits and soil pick-up thing,, protect the operate as normal of this negative pressure suction device in order to prevent that in the negative pressure interface flow backwards in the long-pending full back of waste liquid.In embodiments of the present invention, also be connected with the overflow cup on the negative pressure interface, be used for preventing the long-pending full back refluence of negative pressure interface waste liquid, protect the operate as normal of this negative pressure suction device.
The above is merely the preferred embodiments of the present invention; Be not so limit claim of the present invention; Every equivalent structure or equivalent flow process conversion that utilizes description of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (6)
1. negative pressure suction device; Comprise casing and be arranged on the intravital negative pressure generator of case; It is characterized in that; The high-pressure air source interface of said negative pressure generator is provided with flow regulator, and said flow regulator comprises needle seat and the needle that is wholely set, connecting rod and adjusting tap, and said needle and said adjusting tap are connected to the two ends of said connecting rod; The surface of said connecting rod is provided with external screw thread; Said high-pressure air source interface comprises the first high-pressure air source passage, the second high-pressure air source passage and Flow-rate adjustment hole, and said Flow-rate adjustment hole is communicated with said first high-pressure air source passage and the said second high-pressure air source channel vertical respectively, and the enveloping surface in said Flow-rate adjustment hole is provided with the female thread adaptive with said external screw thread; Said needle seat sealing is arranged in the said Flow-rate adjustment hole; And be positioned at the top of the said first high-pressure air source passage and the below of the said second high-pressure air source passage, the mating surface of said needle and said needle seat is the conical surface, and said adjusting tap is arranged on the outside of said casing.
2. negative pressure suction device according to claim 1 is characterized in that: also comprise the vacuum table on the negative pressure interface that is arranged on said negative pressure generator, said vacuum table is used to detect and show the negative pressure value of said negative pressure seam.
3. negative pressure suction device according to claim 2 is characterized in that: said vacuum table is that noctilucence shows vacuum table.
4. negative pressure suction device according to claim 3 is characterized in that, also comprises intervalometer, controls the switch gap time of said negative pressure interface negative pressure.
5. negative pressure suction device according to claim 4 is characterized in that: the high-pressure air source that said high-pressure air source interface connects is any in central air feed, gas cylinder and the air compressor machine.
6. according to each described negative pressure suction device in the claim 1 to 5, it is characterized in that: also be connected with the overflow cup on the said negative pressure interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101250344A CN102698324A (en) | 2012-04-26 | 2012-04-26 | Negative pressure suction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101250344A CN102698324A (en) | 2012-04-26 | 2012-04-26 | Negative pressure suction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102698324A true CN102698324A (en) | 2012-10-03 |
Family
ID=46891561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101250344A Pending CN102698324A (en) | 2012-04-26 | 2012-04-26 | Negative pressure suction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102698324A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107174676A (en) * | 2017-06-21 | 2017-09-19 | 青岛山大齐鲁医院（山东大学齐鲁医院（青岛）） | Spinal surgery aspirator convenient to operation |
| CN107626007A (en) * | 2017-09-15 | 2018-01-26 | 李任明 | A kind of extravasated blood extracting apparatus and its extravasated blood method for pulling out |
| CN108472420A (en) * | 2016-01-28 | 2018-08-31 | 凯希特许有限公司 | With pressure controlled fluid container |
| CN110332032A (en) * | 2019-07-22 | 2019-10-15 | 四川华气动力有限责任公司 | A kind of negative pressure formation device based on the application of natural gas engine crankcase |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2130987Y (en) * | 1992-06-30 | 1993-04-28 | 沈阳液压机厂 | Differential limit ultra-high-pressure overflow valve |
| CN2167718Y (en) * | 1993-08-06 | 1994-06-08 | 丁有发 | Effux central suction equipment |
| US5364070A (en) * | 1993-07-22 | 1994-11-15 | Transamerican Technologies International | High pressure micro valve |
| CN2464342Y (en) * | 2001-02-26 | 2001-12-12 | 江学成 | Jet-flow negative pressure aspirator |
| CN101468224A (en) * | 2007-12-29 | 2009-07-01 | 北京谊安医疗***股份有限公司 | Flow regulating and controlling valve |
-
2012
- 2012-04-26 CN CN2012101250344A patent/CN102698324A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2130987Y (en) * | 1992-06-30 | 1993-04-28 | 沈阳液压机厂 | Differential limit ultra-high-pressure overflow valve |
| US5364070A (en) * | 1993-07-22 | 1994-11-15 | Transamerican Technologies International | High pressure micro valve |
| CN2167718Y (en) * | 1993-08-06 | 1994-06-08 | 丁有发 | Effux central suction equipment |
| CN2464342Y (en) * | 2001-02-26 | 2001-12-12 | 江学成 | Jet-flow negative pressure aspirator |
| CN101468224A (en) * | 2007-12-29 | 2009-07-01 | 北京谊安医疗***股份有限公司 | Flow regulating and controlling valve |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108472420A (en) * | 2016-01-28 | 2018-08-31 | 凯希特许有限公司 | With pressure controlled fluid container |
| CN107174676A (en) * | 2017-06-21 | 2017-09-19 | 青岛山大齐鲁医院（山东大学齐鲁医院（青岛）） | Spinal surgery aspirator convenient to operation |
| CN107174676B (en) * | 2017-06-21 | 2023-04-25 | 青岛山大齐鲁医院（山东大学齐鲁医院（青岛）） | Spinal surgery aspirator convenient to operation |
| CN107626007A (en) * | 2017-09-15 | 2018-01-26 | 李任明 | A kind of extravasated blood extracting apparatus and its extravasated blood method for pulling out |
| CN110332032A (en) * | 2019-07-22 | 2019-10-15 | 四川华气动力有限责任公司 | A kind of negative pressure formation device based on the application of natural gas engine crankcase |
| CN110332032B (en) * | 2019-07-22 | 2024-01-30 | 四川华气动力有限责任公司 | Negative pressure forming device based on natural gas engine crankcase is used |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102698324A (en) | Negative pressure suction device | |
| CN205948104U (en) | Full -automatic medical sputum aspirator | |
| CN108079387A (en) | A kind of Portable sputum aspirator | |
| CN205276389U (en) | Automatic quantitative air supplement unit of pressure -superposed water supply surge tank and pressure -superposed water supply surge tank | |
| CN205307458U (en) | Emergency internal medicine department is with quick safe sputum aspirator | |
| CN204563047U (en) | A kind of Novel cardiovascular internal medicine drainage system | |
| CN206473600U (en) | A kind of Portable sputum aspirator | |
| CN205533554U (en) | Cone crusher's hydraulic pressure station | |
| CN202015376U (en) | Medical air distribution system | |
| CN210531687U (en) | Pipeline gas safety self-closing valve | |
| CN208838101U (en) | A kind of operation nursing abdominocentesis drainage device | |
| CN202538106U (en) | Anesthesia machine with negative pressure suction function | |
| CN206377008U (en) | A kind of improved water pump pressure control device | |
| CN203989152U (en) | The portable suction device of supplying gas | |
| CN204890895U (en) | Oxygen humidifying bottleneck self -starting dust keeper | |
| CN204147324U (en) | Galactophore cancer postoperative drainage device | |
| CN209967327U (en) | Trachea breather pipe capable of directly viewing pressure in air bag | |
| CN205136779U (en) | Medical foot switch | |
| CN207041720U (en) | A kind of multifunction oxygen inhalation wet bottle | |
| CN202360333U (en) | Miniature vacuum pump | |
| CN207455019U (en) | A kind of working steel tube structure of outer protection tube | |
| CN205372074U (en) | Mining ann's type be air supply and mining ann's type guide formula solenoid valve system for equipment | |
| CN201404321Y (en) | Nipple correction milk sucking and storing device with convenient operation | |
| CN201481874U (en) | Novel negative pressure suction apparatus | |
| CN203517313U (en) | Integrated gas collecting system for oil and gas field |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121003 |