CN203001590U - Novel accurate adjusting device for intravenous infusion - Google Patents
Novel accurate adjusting device for intravenous infusion Download PDFInfo
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- CN203001590U CN203001590U CN 201220598351 CN201220598351U CN203001590U CN 203001590 U CN203001590 U CN 203001590U CN 201220598351 CN201220598351 CN 201220598351 CN 201220598351 U CN201220598351 U CN 201220598351U CN 203001590 U CN203001590 U CN 203001590U
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- tube
- murphy
- valve seat
- murphy tube
- downcomer
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Abstract
A novel accurate adjusting device for intravenous infusion comprises an upper catheter, a reserved pipe cap, a reserved pipe, an adjusting screw nut, a valve seat hole, a valve seat, a zigzagged pipe wall, an adjusting thread, a valve core, a guiding bracket, a Murphy's tube and a lower catheter, and is characterized in that the zigzagged pipe wall of the Murphy's tube can be stretched or compressed under the screwing function of the adjusting screw nut and the adjusting thread, so as to drive the valve core in the Murphy's tube to move correspondingly; and the through flow area of the lower catheter can be changed with different positions of the valve core on the axial line of the lower catheter, so as to realize accurate adjusting of the infusion flow velocity. According to the utility model, the lower catheter adopts a U-shaped curved pipe structure at the lower part, which can inhibit air from entering an infusion tube and automatically stop the liquid. Therefore, the adjusting device has the characteristics of accurate dropping speed adjustment, automatic exhaustion, automatic liquid stopping and the like.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, specifically a kind of device for precision regulating of the disposable transfusion device of using for venous transfusion.
Background technology
At present, medical personnel usually adopt the method for artificial timer counter to regulate and drip speed when injecting the drop treatment for the injury patient, adopt this method to control to drip fast, and namely science not, also dangerous.Tend in life occur due to patient oneself regulate drip speed cause infusing too fast or the situation such as obstructions of completing, infuse in transfusion occur after timely processing cause serious consequence, in simultaneously present armarium, most widely used transfusion speed controller is oblique roller form, it is simple in structure, low cost of manufacture, but easily cause the phenomenons such as tube for transfusion distortion, roller bearing displacement, slippage in this infusion regulator use procedure, thereby the speed of dripping that causes changes, and regulating wheel is difficult for stably fixed position.
Patent ZL01237697.3, ZL01262600.7 and ZL200520070218 adopt the photovoltaic principals collection to drip fast signal, shown through after digital-to-analogue conversion again, but can only count, can't automatically regulate and drip speed, and device has been installed and used certain environment adjusting requirement.
Patent ZL03213959.4, ZL00267516.1, ZL00136881.8, ZL00266528.X all adopted sensor measurement and show to drip number, the driven by motor controlling organization is regulated flow velocity, system complex, cost are high.
Patent ZL200420053860.3 has proposed a kind of improved speed of intravenous infusion by-pass cock, can prevent the automatic slippage of regulating wheel, and speed can not show, flow-control is inaccurate but drip.
Patent ZL98200544.X has proposed manually operated plunger displacement pump and has controlled the device that pressing plate extruding tube for transfusion is regulated flow velocity, and this device is had relatively high expectations to operating technology and needed equally artificial counting, measuring and calculating flow.
Summary of the invention
For above-mentioned deficiency, the invention provides a kind of Novel vein transfusion device for precision regulating.
The present invention is achieved by the following technical solutions: a kind of Novel vein transfusion device for precision regulating, formed by upper conduit, reservation pipe cap, provided pipe, adjusting nut, valve seat orifice, valve seat, zigzag tube wall, adjusting screw thread, spool, guiding trestle, Murphy tube, downcomer, it is characterized in that: upper conduit is bonded in Murphy tube upper opening place, is used for connecting infusion tube; The middle part of Murphy tube is the zigzag tube wall, and this tube wall vertically can be elongated or compress, thereby the spool that drives in Murphy tube moves along the downcomer axis direction.Murphy tube lower end cylindrical section is transparent material, is used for observing amount of liquid medicine; The Murphy tube top is provided with the reservation mouth of pipe, and provided pipe is bonded in Murphy tube and reserves on the mouth of pipe, is used for inputting multiple-medicinal-liquid simultaneously, and the provided pipe cap is stamped on provided pipe top at ordinary times; Murphy tube bottom opening place is bonded with downcomer, the downcomer upper orifice is in Murphy tube, and higher than at the bottom of Murphy tube, downcomer is used for external infusion tube, the downcomer bottom is U-shaped structure, can guarantee to have at least one section medicinal liquid to rest on the downcomer bend loss when left unguarded, and stop air to enter in flexible pipe; Valve seat is positioned at Murphy tube, is bonded together with Murphy tube upper inside surface and upper conduit bottom outer round surface, and valve seat is provided with valve seat orifice, is used for medicinal liquid and flows out, and valve seat top is hollow cylindrical, and the face of cylinder has valve seat orifice; Variable cross-section cylinder place, valve seat lower end is called spool, and spool is not moving up and down under the flexible drive of Fei Shi zigzag tube wall thereupon, and spool front end different cross section cylinder stretches in downcomer, plays the effect of adjust flux; The spool front end is positioned at guiding trestle, and both do not contact under normal circumstances or contact seldom, and when the spool deflection moved, guiding trestle contacted with spool and play the guiding role; Guiding trestle is fixed on the Murphy tube inner bottom, the guiding trestle cylindrical outer wall evenly distributed 6 rectangular channels, can make medicinal liquid flow into downcomer through the rectangular channel space in the Murphy tube.Murphy tube top is set with adjusting nut, adjusting nut can rotate around the Murphy tube periphery, and screw with the adjusting screw thread that is bonded on the cylindrical section of Murphy tube lower end, under adjusting nut and the combined effect of regulating screw thread, Murphy tube tube wall is in a zigzag realized stretching motion.
Usefulness of the present invention: a kind of Novel vein transfusion device for precision regulating is provided, to make up the defective of existing transfusion device speed regulator, the function such as realize grading control, accurately regulate, drip that speed is expressed, be suitable for the needs of different crowd body constitution treatment, simultaneously simple in structure, easy to manufacture, cost is low, workable.
Description of drawings
Accompanying drawing 1 is structural representation of the present invention.
Accompanying drawing 2 is the upper conduit profile.
Accompanying drawing 3 is the Murphy tube profile.
Accompanying drawing 4 is the provided pipe profile.
Accompanying drawing 5 is for reserving the pipe cap profile.
Accompanying drawing 6 is the adjusting nut profile.
Accompanying drawing 7 is for regulating form figure.
Accompanying drawing 8 is the valve seat profile.
Accompanying drawing 9 is the guiding trestle profile.
Accompanying drawing 10 is the downcomer profile.
Accompanying drawing 11 is the guiding trestle front view.
Accompanying drawing 12 is the adjusting nut front view.
Accompanying drawing 13 is for regulating the screw thread front view.
In figure, 1, upper conduit, 2, reserve pipe cap, 3, provided pipe, 4, adjusting nut, 5, valve seat orifice, 6, valve seat, 7, tube wall in a zigzag, 8, regulate screw thread, 9, spool, 10, guiding trestle, 11, Murphy tube, 12, downcomer.
The specific embodiment
A kind of Novel vein transfusion device for precision regulating, formed by upper conduit 1, reservation pipe cap 2, provided pipe 3, adjusting nut 4, valve seat orifice 5, valve seat 6, zigzag tube wall 7, adjusting screw thread 8, spool 9, guiding trestle 10, Murphy tube 11, downcomer 12, it is characterized in that: the external cylindrical surface of upper conduit 1 13 bonds together with the upper surface perforate 14 of Murphy tube 11, and upper conduit 1 top can connect infusion tube.Be zigzag tube wall 7 in the middle part of the cylindrical wall of Murphy tube 11, this tube wall vertically can be elongated or compress, thereby the spools 9 that drive in Murphy tube 11 move along downcomer 12 axis directions.Provided pipe 3 is bonded in Murphy tube 11 top drilling 15 places by bottom external cylindrical surface 21.Provided pipe cap 2 is stamped on provided pipe 3 tops, and reserving pipe cap 2 is the medical grade rubber material, and its inner cylinder face 23 combines by elastic contractile force with the top external cylindrical surface 22 of provided pipe 3.Murphy tube 11 lower surface tappings 20 are bonded together with the external cylindrical surface 28 of downcomer 12, and downcomer 12 upper orifices are in Murphy tube 11, and higher than 11 ends of Murphy tube.Valve seat 6 upper surfaces 26 are bonded in Murphy tube 11 upper surface inner surface 16 places.Valve seat top is hollow cylindrical, and the face of cylinder has valve seat orifice, and valve seat 6 is provided with valve seat orifice 5, and spool 9 is positioned at the front end of valve seat 6, and valve seat 6 is parts with spool 9.The bottom 27 of guiding trestle 10 is bonded in inner surface 19 places of Murphy tube 11 lower surfaces.Evenly distributed 6 rectangular channels 29 on the outer wall circumference of guiding trestle 10.The inner cylinder face 25 of regulating screw thread 8 is bonded in lower cylindrical face 18 places of tube wall 7 in a zigzag, and the bottom outer cylinder surface of regulating screw thread 8 studs with flow velocity indication dial disc 31.Adjusting nut 4 upper end 24 are pressed in 14 places, Murphy tube 11 upper surface, periphery 33 places of the inner periphery 32 of adjusting nut 4 and Murphy tube 11 are matched in clearance, adjusting nut 4 inner peripheries are bonded with back-up ring 34, back-up ring 34 upper surfaces 35 contact with 36 places, surface of Murphy tube 11, the female thread 37 of adjusting nut 4 screws with the external screw thread 38 of regulating screw thread 8, adjusting nut 4 can relatively rotate with Murphy tube 11, moves together up and down.Stud with flow velocity pointer 30 on the bottom outer cylinder surface of adjusting nut 4, the lower end of regulating screw thread 8 studs with flow velocity graduated disc 31, and flow velocity pointer 30 is corresponding with the scale on flow velocity indication dial disc 31.
When this device work, adjusting nut 4 and adjusting screw thread 8 are in the state that initially screws, medicinal liquid indicator 30 is alignd with the maximum of flow velocity indication dial disc 31, medicinal liquid flows in the cavity of valve seat 6 through upper conduit 1, and flows out from valve seat orifice 5, falls into Murphy tube 11 bottoms, when medicinal liquid reach a certain height, rectangular channel 29 through guiding trestle 10 flows into downcomer 12, then flows out through downcomer 12, and this moment, the medicinal liquid flow velocity was maximum.when needs reduce the flow velocity of medicinal liquid, (from the upper conduit downward direction) rotates adjusting nut 4 clockwise, screw under effect at adjusting nut 4 and adjusting screw thread 8, the upper surface 17 of adjusting nut 4 compressing Murphy tubes 11 correspondingly moves downward, driving simultaneously valve seat 6 moves down accordingly, tube wall 7 shrinks in a zigzag, the variable cross-section cylindrical section of spool 9 bottoms stretches in downcomer 12, because spool 9 body diameters increase from bottom to top gradually, therefore the circulation gap of downcomer 12 will diminish gradually, medicinal liquid flow reduces thereupon, until spool 9 has been blocked the space of downcomer 12 fully, this moment is with regard to stopping infusion.With inferior similar, when needs improve the flow velocity of medicinal liquid, (from the upper conduit downward direction) rotates adjusting nut 4 counterclockwise, tube wall 7 extends under the drive of adjusting nut 4 inner periphery back-up rings 34 in a zigzag, the upper surface of Murphy tube 11 moves upward, drive valve seat 6 and move up accordingly, spool 9 strengthens gradually with downcomer 12 gaps, thereby improves the flow velocity of medicinal liquid.Adjusting nut 4 rotates to diverse location, and on it, flow velocity pointer 30 is corresponding with the corresponding scale of flow velocity indication dial disc 31 on regulating screw thread 8, drips speed thereby can set intuitively needed medicinal liquid.
Claims (5)
1. Novel vein transfusion device for precision regulating, formed by upper conduit, reservation pipe cap, provided pipe, adjusting nut, valve seat orifice, valve seat, zigzag tube wall, adjusting screw thread, spool, guiding trestle, Murphy tube, downcomer, it is characterized in that: the zigzag tube wall of Murphy tube can be elongated or compress under the effect that screws of adjusting nut and adjusting screw thread, and the spool that drives in Murphy tube moves along the downcomer axis direction.
2. venous transfusion device for precision regulating according to claim 1 is characterized in that: the middle part of Murphy tube is tube wall in a zigzag, and this tube wall vertically can be elongated or compress, and Murphy tube lower end cylindrical section is transparent material.
3. venous transfusion device for precision regulating according to claim 1, it is characterized in that: valve seat is bonded in inner surface place, Murphy tube upper end, and valve seat top is hollow cylindrical, and the face of cylinder has valve seat orifice; The valve seat bottom is that variable cross-section is cylindric, is called spool; Spool front end variable cross-section cylinder can stretch in downcomer.
4. venous transfusion device for precision regulating according to claim 1 is characterized in that: Murphy tube bottom opening place is bonded with downcomer, and the downcomer upper orifice is in Murphy tube, and higher than at the bottom of Murphy tube, its outside is fixed with the guiding trestle with rectangular channel; The downcomer bottom is stretched out Murphy tube and partly is U-shaped structure.
5. venous transfusion device for precision regulating according to claim 1, it is characterized in that: the Murphy tube upper outside is being set with adjusting nut, adjusting nut can rotate around the Murphy tube periphery, and screws with the adjusting screw thread that is bonded on the cylindrical section of Murphy tube lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220598351 CN203001590U (en) | 2013-04-01 | 2013-04-01 | Novel accurate adjusting device for intravenous infusion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220598351 CN203001590U (en) | 2013-04-01 | 2013-04-01 | Novel accurate adjusting device for intravenous infusion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203001590U true CN203001590U (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220598351 Expired - Fee Related CN203001590U (en) | 2013-04-01 | 2013-04-01 | Novel accurate adjusting device for intravenous infusion |
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| Country | Link |
|---|---|
| CN (1) | CN203001590U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103800971A (en) * | 2012-11-14 | 2014-05-21 | 王晓伟 | New type accurate regulating device for venous transfusion |
| WO2016101860A1 (en) * | 2014-12-22 | 2016-06-30 | 胡绍勤 | Infusion flowing speed adjuster |
| CN108814808A (en) * | 2018-04-27 | 2018-11-16 | 孙彦 | A kind of flow regulator for ophthalmic phacoemulsification instrument |
-
2013
- 2013-04-01 CN CN 201220598351 patent/CN203001590U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103800971A (en) * | 2012-11-14 | 2014-05-21 | 王晓伟 | New type accurate regulating device for venous transfusion |
| WO2016101860A1 (en) * | 2014-12-22 | 2016-06-30 | 胡绍勤 | Infusion flowing speed adjuster |
| CN108814808A (en) * | 2018-04-27 | 2018-11-16 | 孙彦 | A kind of flow regulator for ophthalmic phacoemulsification instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20140401 |