CN103182111A - Composite negative pressure conduction type self-cutoff device of disposable venous infusion apparatus - Google Patents
Composite negative pressure conduction type self-cutoff device of disposable venous infusion apparatus Download PDFInfo
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- CN103182111A CN103182111A CN2011104495122A CN201110449512A CN103182111A CN 103182111 A CN103182111 A CN 103182111A CN 2011104495122 A CN2011104495122 A CN 2011104495122A CN 201110449512 A CN201110449512 A CN 201110449512A CN 103182111 A CN103182111 A CN 103182111A
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- liquid chamber
- negative pressure
- water conservancy
- conservancy diversion
- flow
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16877—Adjusting flow; Devices for setting a flow rate
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/18—General characteristics of the apparatus with alarm
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/50—General characteristics of the apparatus with microprocessors or computers
- A61M2205/502—User interfaces, e.g. screens or keyboards
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/36—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests with means for eliminating or preventing injection or infusion of air into body
- A61M5/40—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests with means for eliminating or preventing injection or infusion of air into body using low-level float-valve to cut off media flow from reservoir
Abstract
The invention relates to a composite negative pressure conduction type self-cutoff device of a disposable venous infusion apparatus. The composite negative pressure conduction type self-cutoff device is arranged between the lower liquid outlet of a Murphy's tube and a lower infusion guide tube of the disposable infusion apparatus. After the infusion is completed, the cutoff is automatically carried out, meanwhile, the pressure changing information is generated and conducted, and a negative pressure conduction three-way port arranged on an outer casing of the negative pressure conduction device is reserved with an interface for the outside acousto-optic alarming and outputs information. The composite negative pressure conduction type self-cutoff device has the advantages that the change of the structure of the original infusion apparatus is little, cost is low, and industrialized production is easily realized; and the working habit of medical staff is not changed, popularization and application are convenient, the working efficiency of nurses is effectively improved, and the pain of patients is reduced.
Description
Technical field
The present invention relates to a kind of automatic cut-off device of disposable intravenous infusion set, particularly a kind of can automatic cut-off, prevent blood back, produce and utilize the automatic cut-off device of negative pressure conduction simultaneously.
Background technology
The disposable transfusion device structure that uses now is comparatively simple, because not ending function certainly, in the venous transfusion process, when the medicinal liquid in the transfusion device during near emptying, if untimelyly stop transfusion or change medicinal liquid, can cause down tube for transfusion air inlet, blood back, blood coagulation phenomenon, giving continues to infuse causes obstacle, increase extra misery to the patient, also form thrombosis easily, bring potential hazard to patient; Existing disposable transfusion device is not because arranging threeway pressure detecting mouth, can't be according to the pressure changing information in when transfusion tube for transfusion, carry out Real-time Monitor Management, expended a large amount of recessiveness work of medical personnel, can accurately not hold the time of changing medicinal liquid or stopping to infuse, can not guarantee that these work can access timely processing, influence medical personnel's service quality and work efficiency, solving these problems that exist in the venous transfusion is present task of top priority.
Summary of the invention
The object of the present invention is to provide a kind of shortcoming and defect that prior art exists that overcomes, realize the automatic cut-off that finishes of infusing, and the device of negative pressure conduction function is provided by the threeway pressure interface.In order to achieve the above object, technical scheme of the present invention is achieved in that the compound negative pressure conduction of a kind of disposable intravenous infusion set is from stopper 1, particularly can automatic cut-off, prevent blood back, produce and utilize the automatic cut-off device of negative pressure conduction simultaneously that it is characterized in that: its installation site is between the lower liquid outlet 1-1-1 and following transfusion catheter 1-5 of intravenous transfusion device Murphy tube 1-1; It is combined by Murphy tube 1-1, sealing flow-stop valve 1-2, negative pressure conduction device 1-3, following transfusion catheter union joint 1-4; Sealing flow-stop valve 1-2 is made up of fluid stopping spool 1-2-1, flow-stop valve water conservancy diversion cover 1-2-2 and flow-stop valve protective cover 1-2-3; Negative pressure conduction device 1-3 is made up of mozzle 1-3-1, water conservancy diversion capsule cover 1-3-2 and negative pressure device shell 1-3-3; The Murphy tube link 1-2-1-1 of fluid stopping spool 1-2-1 upper end is installed in the valve body installing hole 1-1-3 of Murphy tube 1-1 lower end and is tightly connected; Flow-stop valve water conservancy diversion cover 1-2-2 is sleeved on fluid stopping spool 1-2-1 outside, and flow-stop valve protective cover 1-2-3 is installed in flow-stop valve water conservancy diversion cover 1-2-2 outside; The be tightly connected protective cover erecting bed 1-1-2 of mouthful 1-2-3-1 and Murphy tube 1-1 of the Murphy tube of flow-stop valve protective cover 1-2-3 is tightly connected; The flow-stop valve sealing installing port 1-2-3-2 of flow-stop valve protective cover 1-2-3 and the flow-stop valve protective cover erecting bed 1-2-1-10 of fluid stopping spool 1-2-1 lower end are tightly connected, and form a cavity between flow-stop valve water conservancy diversion cover 1-2-2 and the flow-stop valve protective cover 1-2-3; The flow-stop valve link 1-3-1-1 of mozzle 1-3-1 upper end is installed to flow-stop valve liquid outlet 1-2-1-8 and is tightly connected; Water conservancy diversion capsule cover 1-3-2 is sleeved on the outside of mozzle 1-3-1, and negative pressure device shell 1-3-3 is installed in water conservancy diversion capsule cover 1-3-2 outside; The negative pressure device shell erecting bed 1-2-3-3 of the flow-stop valve protective cover connector 1-3-3-1 of negative pressure device shell 1-3-3 and flow-stop valve protective cover 1-2-3 is tightly connected; The be tightly connected negative pressure device shell installation site 1-3-1-10 of mouthful 1-3-3-2 and mozzle 1-3-1 of the mozzle of negative pressure device shell 1-3-3 is tightly connected, and forms a cavity between water conservancy diversion capsule cover 1-3-2 and the negative pressure device shell 1-3-3; The mozzle erecting bed 1-4-1 of following transfusion catheter union joint 1-4 upper end is installed to the mozzle liquid outlet 1-3-1-8 of negative pressure conduction device 1-3 lower end, and the following tube for transfusion link of lower end is connected with following transfusion catheter 1-5.
The compound negative pressure conduction of described disposable intravenous infusion set is from stopper 1, its fluid stopping spool 1-2-1 is by Murphy tube link 1-2-1-1, flow-stop valve inlet 1-2-1-2, upper liquid chamber 1-2-1-3, upper liquid chamber medicine liquid outlet 1-2-1-4, liquid chamber cuts off 1-2-1-5 up and down, following liquid chamber 1-2-1-6, following liquid chamber medicinal liquid import 1-2-1-7, flow-stop valve liquid outlet 1-2-1-8, upper and lower elasticity water conservancy diversion cover seal groove 1-2-1-9, flow-stop valve protective cover erecting bed 1-2-1-10 forms; Liquid chamber cuts off 1-2-1-5 between upper liquid chamber 1-2-1-3 and following liquid chamber 1-2-1-6 up and down, upper liquid chamber 1-2-1-3 is separated into two independently liquid chambers with following liquid chamber 1-2-1-6, upper liquid chamber medicine liquid outlet 1-2-1-4 is positioned on the upper liquid chamber 1-2-1-3 sidewall, and following liquid chamber medicinal liquid import 1-2-1-7 is positioned on the following liquid chamber 1-2-1-6 sidewall; Upper and lower elasticity water conservancy diversion cover seal groove 1-2-1-9 is positioned at upper liquid chamber medicine liquid outlet 1-2-1-4 and the following liquid chamber medicinal liquid import 1-2-1-7 outside.
The compound negative pressure conduction of described disposable intravenous infusion set is from stopper 1, its flow-stop valve water conservancy diversion cover 1-2-2 is by elastic packing water conservancy diversion cover 1-2-2-1 and last, following elasticity water conservancy diversion cover sealing ring 1-2-2-2 forms, elastic packing water conservancy diversion cover 1-2-2-1 is soft resilient material, be enclosed within the outside of fluid stopping spool 1-2-1, on, following elasticity water conservancy diversion cover sealing ring 1-2-2-2 holds elastic packing water conservancy diversion cover 1-2-2-1 tightly and is limited in, in the following elasticity water conservancy diversion cover seal groove 1-2-1-9, form closed structure, upper liquid chamber medicine liquid outlet 1-2-1-4 and following liquid chamber medicinal liquid import 1-2-1-7 are positioned at sealing area.
The compound negative pressure conduction of described disposable intravenous infusion set has air flow through hole 1-2-3-4 that cavity is communicated with the external world from stopper 1 on its flow-stop valve protective cover 1-2-3 sidewall.
The compound negative pressure conduction of described disposable intravenous infusion set is from stopper 1, its mozzle 1-3-1 is by flow-stop valve link 1-3-1-1, mozzle inlet 1-3-1-2, left side liquid chamber 1-3-1-3, left liquid chamber medicine liquid outlet 1-3-1-4, left and right sides liquid chamber cuts off 1-3-1-5, right liquid chamber 1-3-1-6, right liquid chamber medicinal liquid import 1-3-1-7, mozzle liquid outlet 1-3-1-8, upper and lower water conservancy diversion capsule cover seal groove 1-3-1-9 forms; Left and right sides liquid chamber cuts off 1-3-1-5 between left liquid chamber 1-3-1-3 and right liquid chamber 1-3-1-6, left liquid chamber 1-3-1-3 is separated into two independently liquid chambers with right liquid chamber 1-3-1-6, left side liquid chamber 1-3-1-3 directly communicates with mozzle inlet 1-3-1-2, and right liquid chamber 1-3-1-6 directly communicates with mozzle liquid outlet 1-3-1-8; Left side liquid chamber medicine liquid outlet 1-3-1-4 is positioned at left liquid chamber 1-3-1-3 lower sidewall, and right liquid chamber medicinal liquid import 1-3-1-7 is positioned at right liquid chamber 1-3-1-6 side wall upper part; Following water conservancy diversion capsule cover seal groove 1-3-1-9 is positioned at left liquid chamber medicine liquid outlet 1-3-1-4 below and near left liquid chamber medicine liquid outlet, last water conservancy diversion capsule cover seal groove 1-3-1-9 is positioned at above the right liquid chamber medicinal liquid import 1-3-1-7 and near the import of right liquid chamber medicinal liquid.
The compound negative pressure conduction of described disposable intravenous infusion set is from stopper 1, and its water conservancy diversion capsule cover 1-3-2 is made up of water conservancy diversion capsule cover main body 1-3-2-1 and upper and lower water conservancy diversion capsule cover sealing ring 1-3-2-2; Water conservancy diversion capsule cover 1-3-2 is sleeved on the outside of mozzle 1-3-1, upper and lower water conservancy diversion capsule cover sealing ring 1-3-2-2 holds water conservancy diversion capsule cover main body 1-3-2-1 tightly and is limited in the upper and lower water conservancy diversion capsule cover seal groove 1-3-1-9, form closed structure, left side liquid chamber medicine liquid outlet 1-3-1-4 is positioned at the bottom of sealing area, and right liquid chamber medicinal liquid import 1-3-1-7 is positioned at the upper end of sealing area.
The compound negative pressure conduction of described disposable intravenous infusion set is from stopper 1, there is negative pressure to conduct three port 1-3-3-3 on its negative pressure device shell 1-3-3 sidewall, negative pressure conducts three port 1-3-3-3 and negative pressure device shell 1-3-3 constitutes three-port structure, constitute negative pressure cavity simultaneously, utilize water conservancy diversion capsule cover 1-3-2 expansion and the contraction of portion within it to produce the air positive/negative pressure, conducting three port 1-3-3-3 by negative pressure derives, and drives corollary system work.
The invention has the beneficial effects as follows: can realize the transfusion device transfusion automatic cut-off that finishes, derive the air positive/negative pressure by conduction three ports simultaneously, drive corollary system work, transfusion is guarded and managed.This is practical little to former transfusion device structural modification, and cost is low, realizes suitability for industrialized production easily, and does not change medical personnel's work habit, is easy to be extended and applied, and effectively improves nurse job efficient, reduces patient's misery.
Description of drawings
Fig. 1 is overall structure sketch map of the present invention, also can be used as Figure of abstract.
Fig. 2 is Murphy tube structural representation of the present invention.
Fig. 3 is sealing flow-stop valve structural representation of the present invention.
Fig. 4 is sealing flow-stop valve valve core structure sketch map.
Fig. 5 is flow-stop valve water conservancy diversion nested structure sketch map.
Fig. 6 is flow-stop valve protective roof structure sketch map.
Fig. 7 is negative pressure conduction device structural representation.
Fig. 8 is negative pressure conduction device mozzle structural representation.
Fig. 9 is negative pressure conduction device water conservancy diversion capsule nested structure sketch map.
Figure 10 is negative pressure conduction device shell mechanism sketch map.
Figure 11 is following transfusion catheter union joint structural representation.
Wherein:
1, compound negative pressure conduction is from stopper
The 1-1 Murphy tube
The 1-1-1 lower liquid outlet
1-1-2 protective cover erecting bed
1-1-3 valve body installing hole
1-2, sealing flow-stop valve
1-2-1 fluid stopping spool
1-2-1-1 Murphy tube link
1-2-1-2 flow-stop valve inlet
The 1-2-1-3 upper liquid chamber
1-2-1-4 upper liquid chamber medicine liquid outlet
1-2-1-5 liquid chamber up and down cuts off
Liquid chamber under the 1-2-1-6
Liquid chamber medicinal liquid import under the 1-2-1-7
1-2-1-8 flow-stop valve liquid outlet
1-2-1-9 elasticity water conservancy diversion cover seal groove
1-2-1-10 flow-stop valve protective cover erecting bed
1-2-2 flow-stop valve water conservancy diversion cover
1-2-2-1 elastic packing water conservancy diversion cover
1-2-2-2 elasticity water conservancy diversion cover sealing ring
1-2-3 flow-stop valve protective cover
The 1-2-3-1 Murphy tube mouth that is tightly connected
The 1-2-3-2 flow-stop valve mouth that is tightly connected
1-2-3-3 negative pressure device shell erecting bed
1-2-3-4 air flow through hole
1-3, negative pressure conduction device
The 1-3-1 mozzle
1-3-1-1 flow-stop valve link
1-3-1-2 mozzle inlet
1-3-1-3 left side liquid chamber
1-3-1-4 left side liquid chamber medicine liquid outlet
1-3-1-5 left and right sides liquid chamber cuts off
The right liquid chamber of 1-3-1-6
The import of the right liquid chamber medicinal liquid of 1-3-1-7
1-3-1-8 mozzle liquid outlet
1-3-1-9 water conservancy diversion capsule cover seal groove
1-3-1-10 negative pressure device shell installation site
1-3-2 water conservancy diversion capsule cover
1-3-2-1 water conservancy diversion capsule cover main body
1-3-2-2 water conservancy diversion capsule cover sealing ring
1-3-3 negative pressure device shell
1-3-3-1 flow-stop valve protective cover connector
The 1-3-3-2 mozzle mouth that is tightly connected
The 1-3-3-3 negative pressure is conducted three ports
1-4, following transfusion catheter union joint
1-4-1 mozzle erecting bed
Tube for transfusion link under the 1-4-2
The 1-4-3 limiting stand
1-5, following transfusion catheter
The specific embodiment
Below in conjunction with the structural representation accompanying drawing the present invention is specified, as shown in Figure 1, in infusion process, medicinal liquid is from the lower liquid outlet 1-1-1 of Murphy tube 1-1, flow into the flow-stop valve inlet 1-2-1-2 of sealing flow-stop valve 1-2, enter upper liquid chamber 1-2-1-3, flow out from upper liquid chamber medicine liquid outlet 1-2-1-4, enter flow-stop valve water conservancy diversion cover 1-2-2, medicinal liquid is in elastic packing water conservancy diversion cover 1-2-2-1, from following liquid chamber medicinal liquid import 1-2-1-7, flow into liquid chamber 1-2-1-6 down, flow into the mozzle inlet 1-3-1-2 of negative pressure conduction device 1-3 again from flow-stop valve liquid outlet 1-2-1-8.After medicinal liquid enters mozzle inlet 1-3-1-2, be introduced into left liquid chamber 1-3-1-3, flow out from left liquid chamber medicine liquid outlet 1-3-1-4, enter in the water conservancy diversion capsule cover 1-3-2, medicinal liquid is in water conservancy diversion capsule cover main body 1-3-2-1, from right liquid chamber medicinal liquid import 1-3-1-7, flow into right liquid chamber 1-3-1-6, behind the transfusion catheter union joint 1-4, flow into transfusion catheter 1-5 down under passing through from mozzle liquid outlet 1-3-1-8, so far medicinal liquid conducts from stopper 1 outflow from compound negative pressure again.
In infusion process, medicinal liquid is under action of gravity, flow into from Murphy tube in the upper liquid chamber 1-2-1-3 of sealing flow-stop valve 1-2, flow out from upper liquid chamber medicine liquid outlet 1-2-1-4 again, enter flow-stop valve water conservancy diversion cover 1-2-2, under pressure, flow in the following liquid chamber 1-2-1-6 from descending liquid chamber medicinal liquid import 1-2-1-7, flow into again in the negative pressure conduction device 1-3.When the medicinal liquid in the infusion bottle is totally lost, medicinal liquid pressure in Murphy tube 1-1 and the upper liquid chamber 1-2-1-3 reduces, under the suction combined effect of medicinal liquid in its contractility and following transfusion catheter in the flow-stop valve water conservancy diversion cover 1-2-2, shrink liquid chamber medicinal liquid import 1-2-1-7 under the airtight shutoff, realize by function.
In infusion process, medicinal liquid flows out from sealing flow-stop valve 1-2, arrive negative pressure conduction device 1-3, flow into mozzle inlet 1-3-1-2, enter left liquid chamber 1-3-1-3, flow out from left liquid chamber medicine liquid outlet 1-3-1-4, enter in the water conservancy diversion capsule cover 1-3-2, under pressure, water conservancy diversion capsule cover 1-3-2 expands in negative pressure device shell 1-3-3, air in the cover is conducted three port 1-3-3-3 from negative pressure extrude, produce the air pressure that is higher than normal pressure; When medicinal liquid is totally lost, left side liquid chamber 1-3-1-3 internal pressure reduces, under the suction of medicinal liquid in following transfusion catheter in the water conservancy diversion capsule cover 1-3-2, its inner liquid medicine progressively flows out, its outer deformation is suppressed, and smaller volume reduces in the contraction of negative pressure device shell 1-3-3 inner volume, air conducts three port 1-3-3-3 from negative pressure again and flows in the negative pressure device shell 1-3-3, forms the negative pressure that is lower than normal pressure.Utilize the air pressure variations in the infusion process, be connected with related system, can grasp the transfusion process, realize the monitoring administration to transfusion.
The present invention can adopt metal and nonmetallic materials, founding or injection moulding manufacturing.The flow-stop valve valve body can adopt cylindrical, and the cylinder cambered surface at liquid outlet place is wanted smooth rule, the convex-concave groove can not be arranged, in order to avoid influence obturation effect.Elastic packing water conservancy diversion cover should adopt the latex material manufacturing of good springiness, and internal diameter is slightly less than valve diameter, guarantees can reach sealing effectiveness under pressure-less state; When medicinal liquid pressure, the medicinal liquid of upper liquid chamber can enter elastic packing water conservancy diversion cover easily and following liquid chamber is realized normal infusion.Water conservancy diversion capsule cover adopts the elastic emulsion material, and external diameter is greater than the mozzle external diameter, and under small medicinal liquid pressure effect, its profile can expand or shrink; The mozzle of negative pressure conduction device, the medicine liquid outlet of left liquid chamber is positioned at the lower end, and the medicinal liquid import of right liquid chamber must be positioned at the upper end, in the exhaust process when beginning to infuse, the air emptying in the negative pressure conduction device 1-3 could be avoided retaining air and entered human body.
The present invention constructs novelty, practical, safe and reliable, can effectively alleviate medical worker's labor intensity, and does not change the structure of Murphy tube, and manufacturability is strong, and low cost of manufacture is accepted by transfusion device manufacturer and market easily.
Claims (7)
1. the compound negative pressure conduction of disposable intravenous infusion set is from stopper (1), and it is characterized in that: its installation site is between the lower liquid outlet (1-1-1) and following transfusion catheter (1-5) of intravenous transfusion device Murphy tube (1-1); It is combined by Murphy tube (1-1), sealing flow-stop valve (1-2), negative pressure conduction device (1-3), following transfusion catheter union joint (1-4); Sealing flow-stop valve (1-2) is made up of fluid stopping spool (1-2-1), flow-stop valve water conservancy diversion cover (1-2-2) and flow-stop valve protective cover (1-2-3); Negative pressure conduction device (1-3) is made up of mozzle (1-3-1), water conservancy diversion capsule cover (1-3-2) and negative pressure device shell (1-3-3); The Murphy tube link (1-2-1-1) of fluid stopping spool (1-2-1) upper end is installed in the valve body installing hole (1-1-3) of Murphy tube (1-1) lower end and is tightly connected; Flow-stop valve water conservancy diversion cover (1-2-2) is sleeved on fluid stopping spool (1-2-1) outside, and flow-stop valve protective cover (1-2-3) is installed in flow-stop valve water conservancy diversion cover (1-2-2) outside; The be tightly connected protective cover erecting bed (1-1-2) of mouthful (1-2-3-1) and Murphy tube (1-1) of the Murphy tube of flow-stop valve protective cover (1-2-3) is tightly connected; The flow-stop valve sealing installing port (1-2-3-2) of flow-stop valve protective cover (1-2-3) is tightly connected with the flow-stop valve protective cover erecting bed (1-2-1-10) of fluid stopping spool (1-2-1) lower end, forms a cavity between flow-stop valve water conservancy diversion cover (1-2-2) and the flow-stop valve protective cover (1-2-3); The flow-stop valve link (1-3-1-1) of mozzle (1-3-1) upper end is installed to flow-stop valve liquid outlet (1-2-1-8) and is tightly connected; Water conservancy diversion capsule cover (1-3-2) is sleeved on the outside of mozzle (1-3-1), and negative pressure device shell (1-3-3) is installed in water conservancy diversion capsule cover (1-3-2) outside; The flow-stop valve protective cover connector (1-3-3-1) of negative pressure device shell (1-3-3) is tightly connected with the negative pressure device shell erecting bed (1-2-3-3) of flow-stop valve protective cover (1-2-3); The be tightly connected negative pressure device shell installation site (1-3-1-10) of mouthful (1-3-3-2) and mozzle (1-3-1) of the mozzle of negative pressure device shell (1-3-3) is tightly connected cavity of formation between water conservancy diversion capsule cover (1-3-2) and the negative pressure device shell (1-3-3); The mozzle erecting bed (1-4-1) of following transfusion catheter union joint (1-4) upper end is installed to the mozzle liquid outlet (1-3-1-8) of negative pressure conduction device (1-3) lower end, and the following tube for transfusion link of lower end is connected with following transfusion catheter (1-5).
2. the compound negative pressure conduction of disposable intravenous infusion set according to claim 1 is from stopper (1), it is characterized in that: fluid stopping spool (1-2-1) comprises Murphy tube link (1-2-1-1), flow-stop valve inlet (1-2-1-2), upper liquid chamber (1-2-1-3), upper liquid chamber medicine liquid outlet (1-2-1-4), liquid chamber cuts off (1-2-1-5) up and down, following liquid chamber (1-2-1-6), following liquid chamber medicinal liquid import (1-2-1-7), flow-stop valve liquid outlet (1-2-1-8), on, following elasticity water conservancy diversion cover seal groove (1-2-1-9), flow-stop valve protective cover erecting bed (1-2-1-10) ingredient; Liquid chamber partition (1-2-1-5) is positioned between upper liquid chamber (1-2-1-3) and the following liquid chamber (1-2-1-6) up and down, upper liquid chamber (1-2-1-3) is separated into two independently liquid chambers with following liquid chamber (1-2-1-6), upper liquid chamber medicine liquid outlet (1-2-1-4) is positioned on upper liquid chamber (1-2-1-3) sidewall, and following liquid chamber medicinal liquid import (1-2-1-7) is positioned on following liquid chamber (1-2-1-6) sidewall; Upper and lower elasticity water conservancy diversion cover seal groove (1-2-1-9) is positioned at upper liquid chamber medicine liquid outlet (1-2-1-4) and following liquid chamber medicinal liquid import (1-2-1-7) outside.
3. the compound negative pressure conduction of disposable intravenous infusion set according to claim 1 is from stopper (1), it is characterized in that: its flow-stop valve water conservancy diversion cover (1-2-2) is by elastic packing water conservancy diversion cover (1-2-2-1) and last, following elasticity water conservancy diversion cover sealing ring (1-2-2-2) is formed, elastic packing water conservancy diversion cover (1-2-2-1) is soft resilient material, be enclosed within the outside of fluid stopping spool (1-2-1), on, following elasticity water conservancy diversion cover sealing ring (1-2-2-2) is held elastic packing water conservancy diversion cover (1-2-2-1) tightly and is limited in, in the following elasticity water conservancy diversion cover seal groove (1-2-1-9), form closed structure, upper liquid chamber medicine liquid outlet (1-2-1-4) and following liquid chamber medicinal liquid import (1-2-1-7) are positioned at sealing area.
4. the compound negative pressure conduction of disposable intravenous infusion set according to claim 1 is from stopper (1), it is characterized in that: mozzle (1-3-1) comprises flow-stop valve link (1-3-1-1), mozzle inlet (1-3-1-2), left side liquid chamber (1-3-1-3), left side liquid chamber medicine liquid outlet (1-3-1-4), left and right sides liquid chamber cuts off (1-3-1-5), right liquid chamber (1-3-1-6), right liquid chamber medicinal liquid import (1-3-1-7), mozzle liquid outlet (1-3-1-8), upper and lower water conservancy diversion capsule cover seal groove (1-3-1-9) ingredient; Left and right sides liquid chamber cuts off (1-3-1-5) and is positioned between left liquid chamber (1-3-1-3) and the right liquid chamber (1-3-1-6), left liquid chamber (1-3-1-3) is separated into two independently liquid chambers with right liquid chamber (1-3-1-6), left side liquid chamber (1-3-1-3) directly communicates with mozzle inlet (1-3-1-2), and right liquid chamber (1-3-1-6) directly communicates with mozzle liquid outlet (1-3-1-8); Left side liquid chamber medicine liquid outlet (1-3-1-4) is positioned at left liquid chamber (1-3-1-3) lower sidewall, and right liquid chamber medicinal liquid import (1-3-1-7) is positioned at right liquid chamber (1-3-1-6) side wall upper part; Last water conservancy diversion capsule cover seal groove (1-3-1-9) is positioned at left liquid chamber medicine liquid outlet (1-3-1-4) below and near left liquid chamber medicine liquid outlet, following water conservancy diversion capsule cover seal groove (1-3-1-9) is positioned at above the right liquid chamber medicinal liquid import (1-3-1-7) and near the import of right liquid chamber medicinal liquid.
5. the compound negative pressure conduction of disposable intravenous infusion set according to claim 1 is from stopper (1), and it is characterized in that: water conservancy diversion capsule cover (1-3-2) is made up of water conservancy diversion capsule cover main body (1-3-2-1) and upper and lower water conservancy diversion capsule cover sealing ring (1-3-2-2); Water conservancy diversion capsule cover (1-3-2) is sleeved on the outside of mozzle (1-3-1), upper and lower water conservancy diversion capsule cover sealing ring (1-3-2-2) is held water conservancy diversion capsule cover main body (1-3-2-1) tightly and is limited in the upper and lower water conservancy diversion capsule cover seal groove (1-3-1-9), form closed structure, left side liquid chamber medicine liquid outlet (1-3-1-4) is positioned at the bottom of sealing area, and right liquid chamber medicinal liquid import (1-3-1-7) is positioned at the upper end of sealing area.
6. the compound negative pressure conduction of disposable intravenous infusion set according to claim 1 is characterized in that: have air flow through hole (1-2-3-4) that cavity is communicated with the external world on flow-stop valve protective cover (1-2-3) sidewall from stopper (1).
7. the compound negative pressure conduction of disposable intravenous infusion set according to claim 1 is from stopper (1), it is characterized in that: have negative pressure to conduct three ports (1-3-3-3) on negative pressure device shell (1-3-3) sidewall, negative pressure is conducted three ports (1-3-3-3) and is constituted three-port structure with negative pressure device shell (1-3-3), constitute negative pressure cavity simultaneously, utilize water conservancy diversion capsule cover (1-3-2) expansion and the contraction of portion within it to produce the air positive/negative pressure, conducting three ports (1-3-3-3) by negative pressure derives, and drives corollary system work.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104495122A CN103182111A (en) | 2011-12-29 | 2011-12-29 | Composite negative pressure conduction type self-cutoff device of disposable venous infusion apparatus |
| PCT/CN2012/071071 WO2013097320A1 (en) | 2011-12-29 | 2012-02-13 | Composite negative-pressure conduction self-cutoff device for disposable intravenous infusion set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104495122A CN103182111A (en) | 2011-12-29 | 2011-12-29 | Composite negative pressure conduction type self-cutoff device of disposable venous infusion apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103182111A true CN103182111A (en) | 2013-07-03 |
Family
ID=48673721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104495122A Pending CN103182111A (en) | 2011-12-29 | 2011-12-29 | Composite negative pressure conduction type self-cutoff device of disposable venous infusion apparatus |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103182111A (en) |
| WO (1) | WO2013097320A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN105561442A (en) * | 2014-12-22 | 2016-05-11 | 胡绍勤 | Transfusion speed adjustor |
| CN109966585A (en) * | 2019-05-14 | 2019-07-05 | 扈成立 | A kind of infusion monitoring alarm occluding device |
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| US3298391A (en) * | 1967-01-17 | Two way flow anti-siphon valve assembly | ||
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| US20070282268A1 (en) * | 2006-05-31 | 2007-12-06 | Mayse Martin L | Thoracentesis catheter system with self-sealing valve |
| CN202069929U (en) * | 2011-04-08 | 2011-12-14 | 朱盛楠 | Novel safe transfusion device |
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| 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 |
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| CN105561442A (en) * | 2014-12-22 | 2016-05-11 | 胡绍勤 | Transfusion speed adjustor |
| CN109966585A (en) * | 2019-05-14 | 2019-07-05 | 扈成立 | A kind of infusion monitoring alarm occluding device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013097320A1 (en) | 2013-07-04 |
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Application publication date: 20130703 |