CN202751645U - Bothway positive-negative pressure check negative-pressure transmission device of disposable vein infusion set - Google Patents
Bothway positive-negative pressure check negative-pressure transmission device of disposable vein infusion set Download PDFInfo
- Publication number
- CN202751645U CN202751645U CN 201220459631 CN201220459631U CN202751645U CN 202751645 U CN202751645 U CN 202751645U CN 201220459631 CN201220459631 CN 201220459631 CN 201220459631 U CN201220459631 U CN 201220459631U CN 202751645 U CN202751645 U CN 202751645U
- Authority
- CN
- China
- Prior art keywords
- stop valve
- flow
- latex
- negative pressure
- threeway
- 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.)
- Expired - Fee Related
Links
- 238000001802 infusion Methods 0.000 title claims abstract description 23
- 230000005540 biological transmission Effects 0.000 title abstract description 7
- 210000003462 vein Anatomy 0.000 title abstract 3
- 239000004816 latex Substances 0.000 claims description 88
- 229920000126 latex Polymers 0.000 claims description 88
- 239000007788 liquid Substances 0.000 claims description 84
- 239000012530 fluid Substances 0.000 claims description 47
- 238000007789 sealing Methods 0.000 claims description 31
- 239000003814 drug Substances 0.000 claims description 11
- 238000001990 intravenous administration Methods 0.000 claims description 10
- 238000010276 construction Methods 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000008280 blood Substances 0.000 abstract description 10
- 210000004369 blood Anatomy 0.000 abstract description 9
- 230000008859 change Effects 0.000 abstract description 5
- 238000009776 industrial production Methods 0.000 abstract 1
- 230000000007 visual effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 208000007536 Thrombosis Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000023555 blood coagulation Effects 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000010339 dilation Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a bothway positive-negative pressure check negative-pressure transmission device of a disposable vein infusion set. A negative pressure flow-check device, a negative pressure transmission tee joint and a one-way pressure check valve are installed between the lower segment of a disposable infusion set Murphy tube and a lower infusion conduit, the disposable vein infusion set can be automatically checked after infusion or during infusion, back flowing and blood return are prevented under any state, and pressure change information can be produced and transmitted out. As a negative pressure transmission tee joint port is installed on the bothway positive-negative pressure check negative-pressure transmission device, an interface is preserved for an external audible and visual alarm, and information is output. According to the bothway positive-negative pressure check negative-pressure transmission device, the structure of an original infusion set is changed little, cost is low, industrial production can be achieved easily, working habits of medical workers are not changed, popularization and application are convenient, working efficiency of nurses is effectively improved, and pain of patients is relieved.
Description
Technical field
This utility model relates to a kind of automatic cut-off device of new disposable venous transfusion, particularly a kind of can be in infusion process, the positive/negative pressure that utilizes transfusion device inner liquid medicine gravity to produce is realized automatic cut-off, anti-return blood, is provided with the automatic cut-off device that produces and utilize the air negative pressure conducting structure simultaneously.
Background technology
The disposable intravenous infusion set that uses in the market, because there not being the automatic cut-off function, in the venous transfusion process, when medicinal liquid is totally lost, if the untimely flow control valve stopping infusion of closing, perhaps continuous bottle is changed dressings, will cause lower tube for transfusion air inlet, blood back, blood coagulation phenomenon, give and continue the transfusion obstacles, increase extra misery to the patient, also form easily thrombosis, bring potential hazard to patient; Existing disposable transfusion device is because arranging threeway pressure detecting mouth, and the pressure in the time of can't be according to transfusion in the tube for transfusion changes, and utilizes the simplest and the most direct, economic, practical method, carries out Real-time Monitor Management, has expended a large amount of recessiveness of medical personnel and has worked; Family members look after patient's transfusion and have taken a large amount of human resourcess, have consumed a large amount of public resource of hospital and society; Can accurately not hold the time of changing medicinal liquid or stopping infusion, can not guarantee that transfusion work can access timely processing, affect medical personnel's service quality and work efficiency; Once design the multiple technologies scheme before the inventor and solved the problems referred to above, in a plurality of problems acquisition innovations and breakthrough, but the inventor is still exploring and is attempting to find and thorough existing automatic cut-off in the venous transfusion, the anti-optimal path of the problems such as blood, negative pressure utilization and the method for the simplest and the most direct practicality of flowing back to of solving.
Summary of the invention
The purpose of this utility model is to provide a kind of existing shortcoming and defect of prior art that overcomes, and realizes the infusion-completed automatic cut-off, prevents the anti-blood that flows back under any state, and the device of negative pressure conduction function can be provided by the threeway pressure interface.
In order to achieve the above object, the technical solution of the utility model is achieved in that the two-way positive/negative pressure cut-off of a kind of single intravenous infusion negative pressure conduction device 1, particularly can automatic cut-off, under any state, prevent the anti-automatic cut-off device that flows back to blood, possesses the negative pressure conduction function, it is characterized in that: described positive/negative pressure cut-off negative pressure conduction device 1 and Murphy's dropper hypomere 1-1 Integral design, it is by Murphy's dropper hypomere 1-1, bi-directional negative pressure flow-stop valve 1-2, threeway negative pressure conduction module 1-3, uniaxial pressure stop valve 1-4 consists of; Its structural relation is: bi-directional negative pressure flow-stop valve 1-2, be installed in the Murphy's dropper hypomere 1-1, valve body drain pipe 1-2-1-8 on its flow-stop valve body structure spare of bi-directional negative pressure flow-stop valve 1-2 1-2-1 is installed in the vacuum current-stopping valve construction section 1-1-1-1 in the liquid outlet channel 1-1-2 under the Murphy's dropper; Threeway negative pressure conduction module 1-3 is installed between the assembly and uniaxial pressure stop valve 1-4 of Murphy's dropper hypomere 1-1 and bi-directional negative pressure flow-stop valve 1-2; Threeway negative pressure conduction module 1-3, the upper binding head 1-3-1-1 of its longitudinal pipe 1-3-1 in the threeway module construction section 1-1-1-2 on the lower liquid outlet channel 1-1-2 of embedding Murphy's dropper hypomere 1-1, is enclosed within outside the bi-directional negative pressure flow-stop valve drain pipe 1-2-1-8; Threeway assembling outer ring surface 1-4-1-3 on the valve body structure spare 1-4-1 of its lower union joint and uniaxial pressure stop valve 1-4 is connected, and is assemblied in its outside; Transfusion catheter 1-5 is connected and communicates under the medicine liquid outlet 1-4-3-5 of uniaxial pressure stop valve 1-4 and the transfusion device.
The two-way positive/negative pressure cut-off of described disposable intravenous infusion set negative pressure conduction device, its vacuum current-stopping valve 1-2 is positioned at Murphy's dropper hypomere 1-1; It is by flow-stop valve body structure spare 1-2-1, elasticity fluid stopping latex diaphragm 1-2-2, and flow-stop valve air pressure cover 1-2-3 consists of; T shape flow-stop valve body structure spare 1-2-1 is by flow-stop valve lead channel 1-2-1-1, flow-stop valve inlet opening 1-2-1-2, flow-stop valve sealing inlet 1-2-1-3, flow-stop valve sealing liquid outlet 1-2-1-4, flow-stop valve sealing guide face 1-2-1-5, fluid stopping zona shape seal groove 1-2-1-6, flow-stop valve air pressure cover is installed anchor ring 1-2-1-7, valve body drain pipe 1-2-1-8, latex tubing collar extension limiting stand 1-2-1-9, valve body liquid outlet 1-2-1-10 consists of; Flow-stop valve lead channel 1-2-1-1, flow-stop valve inlet opening 1-2-1-2, flow-stop valve sealing inlet 1-2-1-3, flow-stop valve sealing liquid outlet 1-2-1-4, flow-stop valve sealing guide face 1-2-1-5, fluid stopping zona shape seal groove 1-2-1-6, flow-stop valve air pressure cover is installed anchor ring 1-2-1-7, is located at T shape flow-stop valve structural member top, and outward appearance is on the solid of circle, a plurality of flow-stop valve lead channel 1-2-1-1 are the radial circular geometry downside periphery that is located at, and are communicated with space in the Murphy's dropper; A plurality of flow-stop valve inlet opening 1-2-1-2 in the form of a ring array on circular geometry, up/down perforation, it is suitable for reading for fluid stopping valve seal inlet 1-2-1-3, its end opening and one by one corresponding connection of flow-stop valve lead channel 1-2-1-1; Solid upside disc is fluid stopping valve seal guide face 1-2-1-5, and flow-stop valve sealing inlet 1-2-1-4 distributes on its face in the form of a ring; The center of flow-stop valve sealing guide face 1-2-1-5 is fluid stopping valve seal liquid outlet 1-2-1-4, it is extended for valve body drain pipe 1-2-1-8 downwards liquid outlet, the drain pipe termination is valve body liquid outlet 1-2-1-10, and the drain pipe periphery is latex tubing limiting stand 1-2-1-9 near the liquid outlet place; Flow-stop valve elasticity fluid stopping latex diaphragm 1-2-2, it is by fluid stopping latex face, 1-2-2-1, fluid stopping latex film sheet annular edge 1-2-2-2 two parts consist of; Its fluid stopping latex face 1-2-2-1 is fitted in assembly on the weight valve sealing guide face 1-2-1-5, and its fluid stopping latex film sheet annular edge 1-2-2-2 embeds in the fluid stopping zona shape seal groove 1-2-1-6; Flow-stop valve air pressure cover 1-2-3 is by air pressure cover assembling inner ring surface 1-2-3-1, fluid stopping zona shape limit limiting stand 1-2-3-2, air pressure cover atmospheric pressure cavity 1-2-3-3 formation; Flow-stop valve air pressure cover 1-2-3, by the assembling of the air pressure cover on it inner ring surface 1-2-3-1, with the flow-stop valve air pressure cover of T-valve structural member 1-2-1 on it anchor ring 1-2-1-7 being installed cooperates, air pressure cover fluid stopping film limiting stand 1-2-3-2 just in time is pressed on the fluid stopping latex film sheet annular edge 1-2-2-2, on the fluid stopping latex diaphragm 1-2-2-2, and between the flow-stop valve air pressure cover, consist of airtight flow-stop valve valve atmospheric pressure cavity.
The two-way positive/negative pressure fluid stopping of described single intravenous infusion negative pressure conduction device, 1-3 is by threeway longitudinal pipe 1-3-1 in its negative pressure conduction threeway, threeway transverse pipe 1-3-2,, latex catheter 1-3-3 consists of, pressurized seal medicated cap 1-3-4; Its threeway longitudinal pipe upper binding head 1-3-1-1 is respectively on it: upper binding head latex tubing limiting stand 1-3-1-1-1, upper assembling inner ring surface 1-3-1-1-2, upper assembling outer ring surface 1-3-1-1-3, outer limiting stand 1-3-1-1-4; Assembling inner ring surface 1-3-1-1-2, upper assembling outer ring surface 1-3-1-1-3 cooperate installation with vacuum current-stopping valve drain pipe 1-2-1-8, Murphy's dropper liquid outlet channel threeway module construction section 1-1-1-2 respectively on it; Threeway longitudinal pipe lower union joint 1-3-1-2 is respectively on it: lower union joint latex tubing limiting stand 1-3-1-2-1, lower assembling inner ring surface 1-3-1-2-2; Latex catheter 1-3-3 its by duct portion 1-3-3, collar extension 1-3-3 on the conduit, collar extension 1-3-3-3 consists of under the conduit; Latex catheter 1-3-3-1 is positioned at threeway longitudinal pipe 1-3-1, collar extension 1-3-3-2 is installed in the latex tubing collar extension limiting stand 1-2-1-9 of bi-directional negative pressure flow-stop valve drain pipe on it on the latex catheter, and between its upper binding head latex tubing limiting stand of threeway longitudinal pipe 1-3-1-1-1; Collar extension is installed in tee T lower union joint latex tubing limiting stand 1-3-1-2-1 under the latex catheter, and between the latex mozzle collar extension limiting stand 1-4-1-1 on the pressure stop valve valve core structure spare; On the threeway longitudinal pipe 1-3-1, between its upper binding head 1-3-1-1 and the lower union joint 1-3-1-2, have three through hole 1-3-1-3, three through hole 1-3-1-3 connect threeway longitudinal pipe 1-3-1 and threeway transverse pipe 1-3-2; Confined space in threeway longitudinal pipe 1-3-1 and its pipe between the latex catheter 1-3-3, by three port 1-3-1-3, threeway transverse pipe 1-3-2 is communicated with outside; Threeway transverse pipe 1-3-3 and threeway longitudinal pipe 1-3-1 are structure as a whole, and its termination mouth 1-3-2-1 is the external system connector, and its termination outer ring surface 1-3-2-2 is external system connector joint face.
Described threeway negative pressure conduction module 1-3, its transverse pipe 1-3-2 is upper with pressurized seal medicated cap 1-3-4; Pressurized seal medicated cap 1-3-4 outward appearance is column, and one in a tubular form; It comprises installing port 1-3-4-1, seal head 1-3-4-2, sealing-plug 1-3-4-3; Sealing cap installing port 1-3-4-1 is enclosed within on the outside connector 1-3-2-1 of threeway transverse pipe, and sealing-plug 1-3-4-3 embeds in its mouth of pipe.
The two-way positive/negative pressure fluid stopping of described disposable intravenous infusion set negative pressure conduction device, its pressure stop valve 1-4 be by valve core structure spare 1-4-1, latex flow guide sleeve 1-4-2, and stop valve kuppe 1-4-3 consists of; The outward appearance of its valve core structure spare 1-4-1, each section cross section is the unequal positive circular cylindrical shape solid of diameter, is respectively pressure stop valve inlet 1-4-1-1 from top to bottom, latex mozzle collar extension limiting stand 1-4-1-2, outer ring surface 1-4-1-3, mounting limit platform 1-4-1-4 are installed in threeway; Spool mozzle 1-4-1-7, spool liquid outlet 1-4-1-8, spool end socket 1-4-1-9; In assembly 1, its inlet 1-4-1-1 is corresponding to be embedded in the lower collar extension 1-3-3-2 of the inner latex tubing of threeway longitudinal pipe, and latex mozzle collar extension limiting stand 1-4-1-2 just in time is pressed under the latex catheter on the collar extension 1-3-3-1; The corresponding installation of lower assembling inner ring surface 1-3-1-2-2 of outer ring surface 1-4-1-3 and threeway longitudinal pipe lower end is installed in its threeway, and the anchor ring mouth of lower assembling inner ring surface 1-3-1-2-2 and mounting limit platform 1-4-1-4 are identical; Latex flow guide sleeve 1-4-2, it is by flow guiding casing tube 1-4-2-1 suitable for reading, flow guiding casing tube end opening 1-4-2-2, flow guiding casing tube tube wall 1-4-2-3 consists of; Latex flow guide sleeve 1-4-2 is sleeved on above the spool mozzle 1-4-1-7, flow guiding casing tube suitable for reading with valve core structure spare on flow guiding casing tube collar extension limiting stand 1-4-1-6 fit, spool liquid outlet 1-4-1-8 just in time is pressed in below the latex flow guide sleeve, medicinal liquid from spool liquid outlet 1-4-1-8 flows out flows out from flow guiding casing tube end opening 1-4-2-2; Stop valve kuppe 1-4-3, it is by kuppe installing port 1-4-3-1, and kuppe is installed inner ring surface 1-4-3-2, the spacing lattice 1-4-3-3 of flow guide sleeve, diversion cavity 1-4-3-4, stop valve medicine liquid outlet 1-4-3-5 consists of; Stop valve kuppe 1-4-3 installs outer ring surface 1-4-1-5 by kuppe installing port 1-4-3-1 with the kuppe of valve core structure spare and cooperates, be assembled on the valve core structure spare, its diversion cavity 1-4-3-4 just in time covers on the outside of flow guide sleeve 1-4-2, form airtight diversion cavity, flow guiding casing tube end opening 1-4-2-2 places on the flow guide sleeve restriction lattice 1-4-3-3, both limited flow guide sleeve it is not glided with liquid stream in infusion process, grid shape structure also makes medicinal liquid flow out smoothly; The lower extension of stop valve kuppe 1-4-3 is stop valve medicine liquid outlet 1-4-3-5, and the medicinal liquid from flow guiding casing tube end opening 1-4-2-2 flows out flows into airtight diversion cavity, flows out from stop valve medicine liquid outlet 1-4-3-5.Stop valve liquid outlet 1-4-3-5 is communicated with lower tube for transfusion 1-5.
Beneficial effect
Can realize the automatic cut-off of transfusion device infusion-completed, under any circumstance anti-return blood is derived the air positive/negative pressure by conduction three ports simultaneously, drives corollary system work, and transfusion is guarded and managed.This is practical little to former transfusion system structure change, and cost is low, realizes easily suitability for industrialized production, and does not change medical personnel's work habit, is easy to be extended and applied, and more Effective Raise nurse job efficient reduces patient's misery.
Description of drawings
Fig. 1 is this utility model structural representation, also can be used as Figure of abstract.
Fig. 2 is this utility model Murphy's dropper hypomere structural representation
Fig. 3 is bi-directional negative pressure flow-stop valve body structure sketch map of the present utility model.
Fig. 4 is bi-directional negative pressure flow-stop valve body structure spare sketch map of the present utility model.
Fig. 5 is bi-directional negative pressure flow-stop valve body structure spare side view of the present utility model
Fig. 6 elasticity fluid stopping latex diaphragm sketch map
Fig. 7 flow-stop valve air pressure cover sketch map.
Fig. 8 negative pressure conduction threeway modular structure generalized section
Fig. 9 tee T longitudinal pipe, threeway transverse pipe sketch map.
Figure 10 latex catheter sketch map
The horizontal mouth of pipe sealing cap of Figure 11 threeway sketch map
Figure 12 uniaxial pressure stop valve structure sketch map
Figure 13 uniaxial pressure stop valve valve core structure spare sketch map
Figure 14 latex flow guiding casing tube
Figure 15 stop valve kuppe
Wherein: 1, two-way positive/negative pressure cut-off negative pressure conduction device
1-1 Murphy's dropper hypomere
1-1-1 Murphy's dropper upper-lower section installation opening
Liquid outlet channel under the 1-1-2 Murphy's dropper
1-1-1-1 vacuum current-stopping valve construction section
1-1-1-2 channel outlet threeway module construction section
1-2, bi-directional negative pressure flow-stop valve
1-2-1 flow-stop valve body structure spare
1-2-2 elasticity fluid stopping latex diaphragm
1-2-3 flow-stop valve air pressure cover
1-2-1-1 flow-stop valve lead channel
1-2-1-2 flow-stop valve inlet opening
1-2-1-3 flow-stop valve sealing inlet
1-2-1-4 flow-stop valve sealing liquid outlet
1-2-1-5 flow-stop valve sealing guide face
1-2-1-6 fluid stopping zona shape seal groove
1-2-1-7 flow-stop valve air pressure cover is installed anchor ring
1-2-1-8 valve body drain pipe
1-2-1-9 latex tubing collar extension limiting stand
1-2-1-10 valve body liquid outlet
1-2-2-1 fluid stopping latex film
1-2-2-2 fluid stopping latex film annular edge
1-2-3-1 air pressure cover assembling inner ring surface
1-2-3-2 fluid stopping zona shape limit limiting stand
1-2-3-3 air pressure cover atmospheric pressure cavity
1-3, negative pressure conduction threeway module:
1-3-1 tee T longitudinal pipe
1-3-2 threeway transverse pipe
The 1-3-3 latex catheter
1-3-4 pressurized seal plug
1-3-1-1 threeway longitudinal pipe upper binding head
1-3-1-2 threeway longitudinal pipe lower union joint
The 1-3-1-3 negative pressure cavity
1-3-1-1-1 upper binding head latex tubing limiting stand
The upper assembling of 1-3-1-1-2 inner ring surface
The upper assembling of 1-3-1-1-3 outer ring surface
1-3-1-2-1 lower union joint latex tubing limiting stand
Assemble inner ring surface under the 1-3-1-2-2
The horizontal mouth of pipe of 1-3-2-1 threeway
The horizontal mouth of pipe sealing cap of 1-3-2-2 threeway
1-3-2-3 adnexa assembling outer ring surface
Collar extension on the 1-3-3-1 latex catheter
Collar extension under the 1-3-3-2 latex catheter
The 1-3-4-1 seal
The 1-3-4-2 seal head
The 1-3-4-3 sealing-plug
1-4, uniaxial pressure stop valve
1-4-1 valve core structure spare
1-4-2 latex flow guiding casing tube
1-4-3 stop valve kuppe
1-4-1-1 pressure stop valve inlet
1-4-1-2 latex mozzle latch closure limiting stand
1-4-1-3 threeway assembling outer ring surface
1-4-1-4 mounting limit platform
The 1-4-1-5 kuppe is installed outer ring surface
1-4-1-6 flow guiding casing tube collar extension limiting stand
1-4-1-7 spool mozzle
1-4-1-8 spool liquid outlet
1-4-1-9 spool end socket
The 1-4-2-1 flow guiding casing tube is suitable for reading
1-4-2-2 flow guiding casing tube end opening
1-4-2-3 flow guiding casing tube tube wall
1-4-3-1 kuppe installing port
The 1-4-3-2 kuppe is installed inner ring surface
The spacing lattice of 1-4-3-3 flow guide sleeve
The 1-4-3-4 diversion cavity
1-4-3-5 stop valve medicine liquid outlet
1-5, lower transfusion catheter
The specific embodiment
Now do to specify with regard to this patent with regard to structural representation: shown in the accompanying drawing 1, in the reality transfusion is used, medicinal liquid flows into transfusion device Murphy's dropper hypomere 1-1 from medicine bottle, medicinal liquid in its pipe under action of gravity successively from the lead channel 1-2-1-1 of bi-directional negative pressure flow-stop valve 1-2, flow into inlet opening 1-2-1-2, under the medicinal liquid pressure-acting, the elasticity fluid stopping latex diaphragm 1-2-2 that medicinal liquid in the inlet 1-2-1-3 promotes to cover above it expands, medicinal liquid flows in the expansion space under it, flow to simultaneously flow-stop valve sealing liquid outlet 1-2-1-4 and the valve body drain pipe 1-2-1-8 at flow-stop valve sealing guide face 1-2-1-5 center, flow out from valve body liquid outlet 1-2-1-10, the latex that flows into again in the negative pressure conduction tee T 1-3 is led in the 1-3-3 pipe; Continue to flow downward, by latex catheter 1-3-3, in its spool mozzle of the inlet inflow valve core structure spare 1-4-1 of uniaxial pressure stop valve 1-4 1-4-1-7; Under pressure, the latex flow guide sleeve 1-4-2 that medicinal liquid promotes to cover on the spool liquid outlet 1-4-1-8 expands, medicinal liquid enters in the expansion mozzle latex flow guiding casing tube 1-4-2, flow out from water conservancy diversion sleeve pipe liquid outlet 1-4-2-3 mouth, enter in the unidirectional stop valve diversion cavity 1-4-3-4, flow out from stop valve liquid outlet 1-4-3-5 again, enter in the lower tube for transfusion 1-5.
In the infusion process, when the medicinal liquid in the liquid bottle is totally lost, medicinal liquid face in the upper tubing descends, medicinal liquid pressure in the Murphy's dropper 1-1 is more and more less, when liquid level is down to the Murphy's dropper center line, elasticity fluid stopping latex diaphragm 1-2-2 shrinks the airtight upper flow-stop valve sealing inlet 1-2-1-3 of flow-stop valve sealing guide face 1-2-1-5 and flow-stop valve sealing liquid outlet 1-2-1-4, medicinal liquid face in the Murphy's dropper no longer descends, this at present the medicinal liquid in the tube for transfusion 1-5 under action of gravity, still flow downward, airtight inlet 1-2-1-3 and liquid outlet 1-2-1-4 completely cut off liquid gas passage, make tube for transfusion produce negative pressure, negative pressure is at first inhaled the latex catheter 1-3-3 in the threeway longitudinal pipe 1-3-1 flat, the latex catheter that before expands is stained with threeway longitudinal pipe 1-3-1, produces the space during contraction in the pipe, and air is flowed into from threeway transverse pipe 1-3-2; If (transverse tube of airtight tee T namely produces negative pressure in the tee T, if be tightly connected with capillary vessel, the negative pressure in the tee T namely is exported and is used; ) in this moment tube for transfusion under the combined effect of medicinal liquid gravity and negative pressure, pressure balance appears, the medicinal liquid face is static no longer to descend and rises, realizes so-called fluid stopping effect, has effectively avoided medicinal liquid instead to flow and the blood back phenomenon; If but patient body position's change this moment, as sit up, stand or walk about, will break the pressure balance in the tube for transfusion 1-5, make medicinal liquid produce anti-stream, the blood back phenomenon occurs; Uniaxial pressure stop valve 1-4 provided by the present invention, the project organization of its valve core structure spare 1-4-1 and latex flow guide sleeve 1-4-2, make the medicinal liquid that flows into from pressure stop valve inlet 1-4-1-1, with small pressure latex flow guide sleeve 1-4-2 is opened, unimpeded to guarantee that medicinal liquid flows; Otherwise from the medicinal liquid that other direction flows into, its pressure-acting is in the outside of latex flow guide sleeve 1-4-2, pressure is larger, shrinks tighter, airtight tighter, thoroughly stop medicinal liquid to flow, so this invention can make medicinal liquid only flow to a direction, effectively avoid the generation of various blood back phenomenons.
Most of structural member of the present utility model can design injection mold, adopts the injection moulding process manufacturing.The valve body of bi-directional negative pressure flow-stop valve and Murphy's dropper can be designed to integrated injection molding spare, also can be designed to respectively single moulding and be assembled into one, valve body liquid in-out membrana oralis sheet binding face, can be designed to the plane, also can be designed to arcwall face, its latex film plate shape can be designed to circular flat, also can be designed as the circular cambered surface identical with the valve body binding face, diaphragm thickness and elasticity will meet harmomegathus and seal request, and the water conservancy diversion that can expand under the medicinal liquid pressure, medicinal liquid pressure weaken can shrink airtight fluid stopping; The latex mozzle of negative pressure conduction threeway can adopt the softer latex material of quality to make, and just can put in place by dilation in pressure and the less situation of negative pressure, guarantees the negative pressure transmission effect; The water conservancy diversion rubber finger sleeve of uniaxial pressure stop valve cooperates the data material strict with spool, to avoid the not tight and impact transfusion effect of cut-off, also will avoid simultaneously the thickness of latex flow guide sleeve undesirable, affects guide performance, then affects the performance of transfusion device; The spool of uniaxial pressure stop valve adopts cylindrical, also can adopt other shape, and spool face is wanted smooth rule, guarantees airtight cut-off effect.
This utility model structure is novel, practical, safe and reliable, can effectively alleviate medical worker's labor intensity, saves the work of a large amount of light current sufferers and family members' manpower thereof, has huge Social benefit and economic benefit after the popularization; And the present invention does not change the structure of Murphy's dropper and medical personnel's work habit, and manufacturability is strong, and low cost of manufacture is accepted by transfusion device manufacturer and market easily.
Claims (5)
1. the two-way positive/negative pressure of single intravenous infusion ends negative pressure conduction device (1), it is characterized in that: positive/negative pressure cut-off negative pressure conduction device (1) and Murphy's dropper hypomere (1-1) Integral design, it is by Murphy's dropper hypomere (1-1), bi-directional negative pressure flow-stop valve (1-2), threeway negative pressure conduction module (1-3), uniaxial pressure stop valve (1-4) consists of; Its structural relation is: bi-directional negative pressure flow-stop valve (1-2), be installed in the Murphy's dropper hypomere (1-1), valve body drain pipe (1-2-1-8) on its flow-stop valve body structure spare (1-2-1) of bi-directional negative pressure flow-stop valve (1-2) is installed in the vacuum current-stopping valve construction section (1-1-1-1) in the liquid outlet channel under the Murphy's dropper (1-1-2); Threeway negative pressure conduction module (1-3) is installed between the assembly and uniaxial pressure stop valve (1-4) of Murphy's dropper hypomere (1-1) and bi-directional negative pressure flow-stop valve (1-2); Threeway negative pressure conduction module (1-3), the upper binding head (1-3-1-1) of its longitudinal pipe (1-3-1), in the threeway module construction section (1-1-1-2) on the lower liquid outlet channel (1-1-2) of embedding Murphy's dropper hypomere (1-1), be enclosed within outside the bi-directional negative pressure flow-stop valve drain pipe (1-2-1-8); (the threeway assembling outer ring surface (1-4-1-3) on the 1-4-10 is connected the valve body structure spare of its lower union joint and uniaxial pressure stop valve (1-4), is assemblied in its outside; Transfusion catheter (1-5) is connected and communicates under the medicine liquid outlet (1-4-3-5) of uniaxial pressure stop valve (1-4) and the transfusion device.
2. according to the two-way positive/negative pressure cut-off of claim one described disposable intravenous infusion set negative pressure conduction device, its vacuum current-stopping valve (1-2) is positioned at Murphy's dropper hypomere (1-1); It is by flow-stop valve body structure spare (1-2-1), elasticity fluid stopping latex diaphragm (1-2-2), and flow-stop valve air pressure cover (1-2-3) consists of; T shape flow-stop valve body structure spare (1-2-1) is by flow-stop valve lead channel (1-2-1-1), flow-stop valve inlet opening (1-2-1-2), flow-stop valve sealing inlet (1-2-1-3), flow-stop valve sealing liquid outlet (1-2-1-40, flow-stop valve sealing guide face (1-2-1-5), fluid stopping zona shape seal groove (1-2-1-6), flow-stop valve air pressure cover is installed anchor ring (1-2-1-7), valve body drain pipe (1-2-1-8), latex tubing collar extension limiting stand (1-2-1-9), valve body liquid outlet (1-2-1-10) consists of; Flow-stop valve lead channel (1-2-1-1), flow-stop valve inlet opening (1-2-1-2), flow-stop valve sealing inlet (1-2-1-3), flow-stop valve sealing liquid outlet (1-2-1-4), flow-stop valve sealing guide face (1-2-1-5), fluid stopping zona shape seal groove (1-2-1-6), flow-stop valve air pressure cover is installed anchor ring (1-2-1-7), be located at T shape flow-stop valve structural member top, outward appearance is on the solid of circle, a plurality of flow-stop valve lead channel (1-2-1-1) are the radial circular geometry downside periphery that is located at, and are communicated with space in the Murphy's dropper; A plurality of flow-stop valve inlet openings (1-2-1-2) in the form of a ring array on circular geometry, up/down perforation, it is suitable for reading for fluid stopping valve seal inlet (1-2-1-3), its end opening and one by one corresponding connection of flow-stop valve lead channel (1-2-1-1); Solid upside disc is fluid stopping valve seal guide face (1-2-1-5), and flow-stop valve sealing inlet (1-2-1-4) distributes on its face in the form of a ring; The center of flow-stop valve sealing guide face (1-2-1-5) is fluid stopping valve seal liquid outlet (1-2-1-4), it is extended for valve body drain pipe (1-2-1-8) downwards liquid outlet, the drain pipe termination is valve body liquid outlet (1-2-1-10), the drain pipe periphery is latex tubing limiting stand (1-2-1-9) near the liquid outlet place; Flow-stop valve elasticity fluid stopping latex diaphragm (1-2-2), it is by fluid stopping latex face, and (1-2-2-1), fluid stopping latex film sheet annular edge (1-2-2-2) two parts consist of; (1-2-2-10 is fitted in assembly on the weight valve sealing guide face (1-2-1-5) its fluid stopping latex face, and its fluid stopping latex film sheet annular edge (1-2-2-2) embeds in the fluid stopping zona shape seal groove (1-2-1-6); Flow-stop valve air pressure cover (1-2-3) is by air pressure cover assembling inner ring surface (1-2-3-1), fluid stopping zona shape limit limiting stand (1-2-3-2), air pressure cover atmospheric pressure cavity (1-2-3-3) formation; Flow-stop valve air pressure cover (1-2-3), by the assembling of the air pressure cover on it inner ring surface (1-2-3-1), with the flow-stop valve air pressure cover of T-valve structural member (1-2-1) on it anchor ring (1-2-1-7) being installed cooperates, air pressure cover fluid stopping film limiting stand (1-2-3-2) just in time is pressed on the fluid stopping latex film sheet annular edge (1-2-2-2), on the fluid stopping latex diaphragm (1-2-2-2), and between the flow-stop valve air pressure cover, consist of airtight flow-stop valve valve atmospheric pressure cavity.
3. according to the two-way positive/negative pressure fluid stopping of claim one described single intravenous infusion negative pressure conduction device, its negative pressure conduction threeway (1-3) is by threeway longitudinal pipe (1-3-10), threeway transverse pipe (1-3-2), latex catheter (1-3-3) consists of; Its threeway longitudinal pipe upper binding head (1-3-1-1) is respectively on it: upper binding head latex tubing limiting stand (1-3-1-1-1), upper assembling inner ring surface (1-3-1-1-2), upper assembling outer ring surface (1-3-1-1-3), outer limiting stand (1-3-1-1-4); Assembling inner ring surface (1-3-1-1-2), upper assembling outer ring surface (1-3-1-1-3) cooperate installation with vacuum current-stopping valve body drain pipe (1-2-1-8), Murphy's dropper liquid outlet channel threeway module construction section (1-1-1-2) respectively on it; Threeway longitudinal pipe lower union joint (1-3-1-20) is respectively on it: lower union joint latex tubing limiting stand (1-3-1-2-1), lower assembling inner ring surface (1-3-1-2-2); Latex catheter (1-3-30 its by duct portion (1-3-3-1), collar extension on the conduit (1-3-3-2), collar extension under the conduit (1-3-3-3) consists of; Latex catheter (1-3-3-1) is positioned at threeway longitudinal pipe (1-3-1), latex catheter pressed on ring (1-3-3-2) is installed in the latex tubing collar extension limiting stand (1-2-1-9) of bi-directional negative pressure flow-stop valve drain pipe on it, and between its upper binding head latex tubing limiting stand (1-3-1-1-1) of threeway longitudinal pipe; Collar extension is installed in tee T lower union joint latex tubing limiting stand (1-3-1-2-1) under the latex catheter, and between the latex mozzle collar extension limiting stand (1-4-1-1) on the pressure stop valve valve core structure spare; It comprises threeway transverse pipe adnexa photo outer ring surface (1-3-1) its threeway transverse pipe (1-3-2), the threeway mouth of pipe (1-3-2-2), threeway mouth of pipe sealing cap (1-3-2-3).
4. according to the threeway negative pressure conduction module (1-3) of the two-way positive/negative pressure fluid stopping of claim one described disposable intravenous infusion set negative pressure conduction device, its transverse pipe (1-3-2) is upper with pressurized seal medicated cap (1-3-4); Pressurized seal medicated cap (1-3-4) outward appearance is column, and one in a tubular form; It comprises installing port (1-3-4-1), seal head (1-3-4-2), sealing-plug (1-3-4-3); Sealing cap installing port (1-3-4-1) is enclosed within on the outside connector of threeway transverse pipe (1-3-2-1), and sealing-plug (1-3-4-3) embeds in its mouth of pipe.
5. according to the two-way positive/negative pressure fluid stopping of claim one described disposable intravenous infusion set negative pressure conduction device, its pressure stop valve (1-4) is by valve core structure spare (1-4-1), latex flow guiding casing tube (1-4-2), stop valve kuppe (1-4-3) consists of; The outward appearance of its valve core structure spare (1-4-1), each section cross section is the unequal positive circular cylindrical shape solid of diameter, be respectively pressure stop valve inlet (1-4-1-1) from top to bottom, latex mozzle collar extension limiting stand (1-4-1-2), outer ring surface (1-4-1-3), mounting limit platform (1-4-1-4) are installed in threeway; Spool mozzle (1-4-1-5), spool liquid outlet (1-4-1-6), spool end socket (1-4-1-7); In assembly (1), in the lower collar extension (1-3-3-1) of the inner latex tubing of the corresponding embedding of its inlet (1-4-1-1) threeway longitudinal pipe, latex mozzle collar extension limiting stand (1-4-1-2) just in time is pressed on the collar extension under the latex catheter (1-3-3-1); The corresponding installation of lower assembling inner ring surface (1-3-1-2-2) of outer ring surface (1-4-1-3) and threeway longitudinal pipe lower end is installed in its threeway, the anchor ring mouth of lower assembling inner ring surface (1-3-1-2-2) and mounting limit platform latex flow guiding casing tube (1-4-2), it is by flow guiding casing tube (1-4-2-1) suitable for reading, flow guiding casing tube end opening (1-4-2-2), flow guiding casing tube tube wall (1-4-2-3) consists of; Latex flow guide sleeve (1-4-2) is sleeved on above the spool mozzle (1-4-1-5), flow guiding casing tube (1-4-2-2) suitable for reading is fitted with the flow guiding casing tube limiting stand suitable for reading (1-4-1-6) on the valve core structure spare, spool liquid outlet (1-4-1-8) just in time is pressed in below the latex flow guide sleeve, medicinal liquid from spool liquid outlet (1-4-1-8) flows out flows out from flow guiding casing tube end opening (1-4-2-2); Stop valve kuppe (1-4-3), it is by kuppe installing port (1-4-3-1), and kuppe is installed inner ring surface (1-4-3-2), the spacing lattice of flow guide sleeve (1-4-3-3), diversion cavity (1-4-3-4), stop valve medicine liquid outlet (1-4-3-5) consists of; Stop valve kuppe (1-4-3) is installed outer ring surface (1-4-1-5) by kuppe installing port (1-4-3-1) with the kuppe of valve core structure spare and is cooperated, be assembled on the valve core structure spare, its flow guide sleeve limiting stand (1-4-3-3) just in time keeps off on flow guiding casing tube (1-4-2-1) suitable for reading, its diversion cavity (1-4-3-4) just in time covers on the outside of flow guide sleeve (1-4-2), forms airtight diversion cavity; The lower extension of stop valve kuppe (1-4-3) is stop valve medicine liquid outlet (1-4-3-5), and the medicinal liquid from flow guiding casing tube end opening (1-4-2-3) flows out flows into airtight diversion cavity, flows out from stop valve medicine liquid outlet (1-4-3-5).Stop valve liquid outlet (1-4-3-5) is communicated with lower tube for transfusion (1-5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220459631 CN202751645U (en) | 2012-09-11 | 2012-09-11 | Bothway positive-negative pressure check negative-pressure transmission device of disposable vein infusion set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220459631 CN202751645U (en) | 2012-09-11 | 2012-09-11 | Bothway positive-negative pressure check negative-pressure transmission device of disposable vein infusion set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202751645U true CN202751645U (en) | 2013-02-27 |
Family
ID=47730844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220459631 Expired - Fee Related CN202751645U (en) | 2012-09-11 | 2012-09-11 | Bothway positive-negative pressure check negative-pressure transmission device of disposable vein infusion set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202751645U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103656780A (en) * | 2012-09-11 | 2014-03-26 | 郑州昊能科技有限公司 | Novel disposable venous transfusion double-direction positive pressure and negative pressure cut-off negative pressure conducting device |
| CN104147667A (en) * | 2013-05-15 | 2014-11-19 | 郑州昊能科技有限公司 | Novel self-stop drip chamber with negative pressure conduction device |
| WO2014183272A1 (en) * | 2013-05-15 | 2014-11-20 | 福建省百仕韦医用高分子股份有限公司 | Medical infusion connector connected to extracorporal indwelling catheter and having stop valve |
| CN104645455A (en) * | 2013-07-03 | 2015-05-27 | 李耀强 | Reminder hanging on the infusion bag |
| CN105268059A (en) * | 2014-07-23 | 2016-01-27 | 河南忱诺科技有限公司 | Automatic cut-off negative pressure conduction module of gravity venous transfusion |
| CN105709301A (en) * | 2013-07-03 | 2016-06-29 | 中山市梵凯科技服务有限公司 | Infusion reminder |
-
2012
- 2012-09-11 CN CN 201220459631 patent/CN202751645U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103656780A (en) * | 2012-09-11 | 2014-03-26 | 郑州昊能科技有限公司 | Novel disposable venous transfusion double-direction positive pressure and negative pressure cut-off negative pressure conducting device |
| CN104147667A (en) * | 2013-05-15 | 2014-11-19 | 郑州昊能科技有限公司 | Novel self-stop drip chamber with negative pressure conduction device |
| WO2014183272A1 (en) * | 2013-05-15 | 2014-11-20 | 福建省百仕韦医用高分子股份有限公司 | Medical infusion connector connected to extracorporal indwelling catheter and having stop valve |
| CN104645455A (en) * | 2013-07-03 | 2015-05-27 | 李耀强 | Reminder hanging on the infusion bag |
| CN105709301A (en) * | 2013-07-03 | 2016-06-29 | 中山市梵凯科技服务有限公司 | Infusion reminder |
| CN105709300A (en) * | 2013-07-03 | 2016-06-29 | 中山市梵凯科技服务有限公司 | Transfusion reminder provided with clamping ring |
| CN105854123A (en) * | 2013-07-03 | 2016-08-17 | 中山市梵凯科技服务有限公司 | Infusion reminder with alarming function |
| CN105709301B (en) * | 2013-07-03 | 2018-09-11 | 长乐市丽智产品设计有限公司 | Alarm for infusion |
| CN105709300B (en) * | 2013-07-03 | 2018-10-16 | 长乐市丽智产品设计有限公司 | The alarm for infusion of band clasp |
| CN105854123B (en) * | 2013-07-03 | 2018-11-06 | 长乐市丽智产品设计有限公司 | Alarm for infusion with warning function |
| CN105268059A (en) * | 2014-07-23 | 2016-01-27 | 河南忱诺科技有限公司 | Automatic cut-off negative pressure conduction module of gravity venous transfusion |
| CN105268059B (en) * | 2014-07-23 | 2019-09-27 | 泉州台商投资区恒鑫隆网络科技有限公司 | A kind of gravity intravenous infusion automatic cut-off negative pressure conduction module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202751645U (en) | Bothway positive-negative pressure check negative-pressure transmission device of disposable vein infusion set | |
| CN203060494U (en) | Automatic cut-off drip chamber with negative pressure conduction device | |
| CN202822354U (en) | Disposable transfusion apparatus with automatic exhaust | |
| CN103656780A (en) | Novel disposable venous transfusion double-direction positive pressure and negative pressure cut-off negative pressure conducting device | |
| CN203370164U (en) | Automatic cut-off and sound conduction drip chamber | |
| CN203370148U (en) | Automatic cut-off and sound conduction drip chamber | |
| CN202397893U (en) | Disposable intravenous infusion set composite negative pressure conduction self cut-off device | |
| CN103182111A (en) | Composite negative pressure conduction type self-cutoff device of disposable venous infusion apparatus | |
| CN202875982U (en) | Automatic cut-out negative-pressure conductive drip chamber | |
| CN102836474A (en) | Intelligent automatic liquid-stopping blood-returning prevention Murphy tube and transfusion device including the same | |
| CN203389161U (en) | Automatic stopping negative pressure transfer bottle puncturing needle | |
| CN203043185U (en) | Automatic cut-off dripping hopper for disposable venous infusion apparatus | |
| CN205411800U (en) | Disposable is from sealing automatic liquid -stopping transfusion system | |
| CN106581806B (en) | Disposable self-closed automatic liquid-stopping infusion apparatus | |
| CN201423062Y (en) | Liquid medicine intercepting and keeping infusion apparatus | |
| CN204364564U (en) | A kind of gravity venous transfusion automatic cut-off negative pressure conduction module | |
| CN103721311B (en) | A kind of new disposable automatic cut-off intravenous transfusion device threeway negative pressure conduction device | |
| CN203342116U (en) | Composite tee pressure conducting device of novel disposable self-cut-off intravenous infusion set | |
| CN203263955U (en) | Disposable liquid-stopping infusion device | |
| CN201286915Y (en) | Disposable self-closing liquid-keeping transfusion device with valve opening sac | |
| CN104338208A (en) | Automatic cut-off negative-pressure conduction bottle penetrating needle | |
| CN202061163U (en) | Micropore blood returning preventing infusion device | |
| CN103845781A (en) | Automatic stopping negative-pressure conduction drip chamber | |
| CN201744018U (en) | Puncture outfit for dripping-off-proof infusion set | |
| CN105268059A (en) | Automatic cut-off negative pressure conduction module of gravity venous transfusion |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130227 Termination date: 20150911 |
|
| EXPY | Termination of patent right or utility model |