CN202397883U - Continuous and positive pressure non-needle connecting assembly - Google Patents
Continuous and positive pressure non-needle connecting assembly Download PDFInfo
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- CN202397883U CN202397883U CN2011203208747U CN201120320874U CN202397883U CN 202397883 U CN202397883 U CN 202397883U CN 2011203208747 U CN2011203208747 U CN 2011203208747U CN 201120320874 U CN201120320874 U CN 201120320874U CN 202397883 U CN202397883 U CN 202397883U
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- positive pressure
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- 239000007788 liquid Substances 0.000 claims abstract description 128
- 238000007789 sealing Methods 0.000 claims abstract description 45
- 230000008878 coupling Effects 0.000 claims description 22
- 238000010168 coupling process Methods 0.000 claims description 22
- 238000005859 coupling reaction Methods 0.000 claims description 22
- 239000012530 fluid Substances 0.000 claims description 18
- 229920003023 plastic Polymers 0.000 claims description 15
- 239000004033 plastic Substances 0.000 claims description 15
- 229910001220 stainless steel Inorganic materials 0.000 claims description 8
- 239000010935 stainless steel Substances 0.000 claims description 8
- 238000010276 construction Methods 0.000 claims description 5
- 238000005538 encapsulation Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000001802 infusion Methods 0.000 abstract description 6
- 230000000474 nursing effect Effects 0.000 abstract description 4
- 238000005406 washing Methods 0.000 abstract description 3
- 239000003814 drug Substances 0.000 abstract 5
- 230000003247 decreasing effect Effects 0.000 abstract 2
- 208000012266 Needlestick injury Diseases 0.000 abstract 1
- 208000001297 phlebitis Diseases 0.000 abstract 1
- 230000003252 repetitive effect Effects 0.000 abstract 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 9
- 239000008280 blood Substances 0.000 description 5
- 210000004369 blood Anatomy 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 208000007536 Thrombosis Diseases 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010992 reflux Methods 0.000 description 4
- 238000001467 acupuncture Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 208000002925 dental caries Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002560 therapeutic procedure Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 1
- 230000002175 menstrual effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004936 stimulating effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
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Abstract
The utility model discloses a continuous and positive pressure non-needle connecting assembly, comprising a connecting piece and a continuous positive pressure member cooperating with the connecting piece. The continuous positive pressure member comprises a sleeve, a piston and capillary tubes communicated with the sleeve. The piston is disposed in the sleeve, and the lower end of the piston is provided with a spring providing continuous pressure or compressed air. The top end of the sleeve is provided with a non-return valve joint. The sleeve and the capillary tubes form a liquid medicine channel communicated with a liquid channel in the connecting piece. The liquid medicine channel is provided with a filter. The continuous and positive pressure non-needle connecting assembly is advantageous in that repetitive pipe sealing and pipe washing are reduced, nursing work amount is decreased and work efficiency is improved; when an infusion device or a syringe is pulled out, the positive pressure non-needle connecting piece instantly pushes forward liquid medicine; liquid medicine in a rubber pipe is slowly and continuously pushed forward without pipe sealing; pressure in a remaining needle guide pipe can be maintained until liquid medicine in the rubber pipe is completely released; pipe-blocking rate and incidence rate of phlebitis can be reduced and patient pain can be decreased; with the adoption of non-needle operation, the needle-stick risk of medical care personnel can be declined.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, relates in particular to a kind of needleless coupling assembling of sustainable generation malleation.
Background technology
Existing malleation needleless coupling assembling comprises valve casing, valve rod, spring, valve seat.During use, when transfusion device or syringe are extracted, can produce malleation, can be pushed forward into medicinal liquid, avoid blood to reflux and form thrombosis, reduce the plugging rate.In practical operation,, when remaining needle withdraws from, also need a spot of tube sealing no matter be transfusion device or syringe.
Summary of the invention
This utility model purpose is: a kind of sustainable malleation needleless coupling assembling is provided; Supporting uses such as itself and remaining needle can alleviate nursing work load; Increase work efficiency, reduce phlebitic incidence rate simultaneously, before transfusion finishes; Normal saline is injected in the sleeve through the check valve joint, make spring compression or air compression.When transfusion device or syringe were extracted, needleless connector moment was pushed forward into medicinal liquid, and the pressure that spring or air compression produce acts on piston and continues to push ahead normal saline; Slowly get in the indwelling needle catheter through fluid passage, do not need tube sealing fully, make in the indwelling needle catheter to keep-up pressure; Till normal saline has been pressed by spring in sleeve, do not need tube sealing fully, avoided blood to reflux and formed thrombosis; Avoid the generation of plugging, alleviate the misery of sufferer.
The technical scheme of this utility model is: a kind of sustainable malleation needleless coupling assembling; The continuous positive pressure spare that it comprises connector, is used with connector; Described continuous positive pressure spare comprises sleeve, piston and the capillary tube that is communicated with sleeve; Described piston is located in the sleeve, and the piston lower end is provided with provides spring or the compressed air that continues pressure, and described sleeve top is provided with the check valve joint; Described sleeve forms the medicinal liquid path that is connected with the inner fluid passage of connector with capillary tube, on the described medicinal liquid path filter is housed.
The further technical scheme of this utility model is: a kind of sustainable malleation needleless coupling assembling; The continuous positive pressure spare that it comprises connector, is used with connector; Described continuous positive pressure spare comprises sleeve, piston and the capillary tube that is communicated with sleeve; Described piston is located in the sleeve, and the piston lower end is provided with provides spring or the compressed air that continues pressure, and described sleeve top is provided with the check valve joint; Described sleeve forms the medicinal liquid path that is connected with the inner fluid passage of connector with capillary tube, on the described medicinal liquid path filter is housed; The outside of said continuous positive pressure spare is provided with shell, and sleeve and capillary tube are loaded in the shell, and the check valve joint at sleeve top is positioned at the outside of shell; Said connector is that malleation needleless connector or two leads to fitting or three-way connector; Said connector and continuous positive pressure spare are structure as a whole, and perhaps a plurality of absolute construction for being fixed together perhaps are a plurality of independent structure of using simultaneously; Said malleation needleless connector comprises valve casing, valve rod, spring, valve seat; Said valve casing and valve seat are hollow structure; Valve casing is set in the outside of valve seat; And be connected with valve base sealing, the upper end of said valve casing is provided with the liquid inlet, and the lower end of valve seat is provided with liquid outlet; Between liquid inlet and liquid outlet, be provided with liquid flow path, the bottom of said valve seat is provided with steam vent; The lower end of said valve rod is stretched in the cavity of valve seat, and said spring is arranged between valve rod and the valve seat cavity floor; The top and bottom of said valve rod are respectively equipped with groove, and sealing ring and lower seal are housed respectively in the groove, and said lower seal is divided into the cavity of valve seat to the inner chamber of liquid inlet sealing and the exocoel of opening to the liquid inlet; Said filter is installed on the capillary tube, perhaps is installed on the sleeve outer upper ends, perhaps is installed on the check valve joint; Said continuous positive pressure spare also comprises connection tube, and said connection tube is installed on telescopic upper end, and said filter is loaded between connection tube and the capillary tube, and the inlet of filter links to each other with the outlet of connection tube, and the outlet of filter links to each other with inlet capillaceous.
The more detailed technical scheme of this utility model is: a kind of sustainable malleation needleless coupling assembling; The continuous positive pressure spare that it comprises connector, is used with connector; Described continuous positive pressure spare comprises sleeve, piston and the capillary tube that is communicated with sleeve; Described piston is located in the sleeve, and the piston lower end is provided with provides spring or the compressed air that continues pressure, and described sleeve top is provided with the check valve joint; Described sleeve forms the medicinal liquid path that is connected with the inner fluid passage of connector with capillary tube, on the described medicinal liquid path filter is housed; The outside of said continuous positive pressure spare is provided with shell, and sleeve and capillary tube are loaded in the shell, and the check valve joint at sleeve top is positioned at the outside of shell; Said connector is that malleation needleless connector or two leads to fitting or three-way connector; Said connector and continuous positive pressure spare are structure as a whole, and perhaps a plurality of absolute construction for being fixed together perhaps are a plurality of independent structure of using simultaneously; Said malleation needleless connector comprises valve casing, valve rod, spring, valve seat; Said valve casing and valve seat are hollow structure; Valve casing is set in the outside of valve seat; And be connected with valve base sealing, the upper end of said valve casing is provided with the liquid inlet, and the lower end of valve seat is provided with liquid outlet; Between liquid inlet and liquid outlet, be provided with liquid flow path, the bottom of said valve seat is provided with steam vent; The lower end of said valve rod is stretched in the cavity of valve seat, and said spring is arranged between valve rod and the valve seat cavity floor; The top and bottom of said valve rod are respectively equipped with groove, and sealing ring and lower seal are housed respectively in the groove, and said lower seal is divided into the cavity of valve seat to the inner chamber of liquid inlet sealing and the exocoel of opening to the liquid inlet; Said filter is installed on the capillary tube, perhaps is installed on the sleeve outer upper ends, perhaps is installed on the check valve joint; Said continuous positive pressure spare also comprises connection tube, and said connection tube is installed on telescopic upper end, and said filter is loaded between connection tube and the capillary tube, and the inlet of filter links to each other with the outlet of connection tube, and the outlet of filter links to each other with inlet capillaceous; Said check valve joint is for being with externally threaded 6:100 female luer, perhaps for being with externally threaded non-6:100 interface; Said sleeve is that plastics or other materials are processed; Said fluid path or capillary tube are that medical plastic is processed or the stainless steel bar of embedded trough of belt mouth distortion is processed.Said valve casing is a two-port valve, and the outside, liquid inlet of said two-port valve is provided with male connection; Perhaps valve casing is a three-way valve; The outside, liquid inlet of three-way valve is provided with male connection; The arm of three-way valve is connected with liquid flow path, and said arm upper end is provided with the 6:100 female luer or the non-6:100 interface of standard, and said female luer is equipped with the sealing end cap; Be provided with in the said valve rod one be opened on its bottom surface cavity, cavity floor is provided with fixed leg on; The last sealing ring of said valve rod and the inwall of said liquid inlet are interference fit, are interference fit between the inwall of the cavity of lower seal and valve seat; The end face of said valve rod is an inclined-plane, and perhaps end face is provided with and is three salient points that equilateral triangle distributes; Said valve seat bottom is provided with several voltage supply steam vent that air discharges that contracts; Said valve seat bottom is provided with liquid-through hole; Said liquid-through hole is arranged between liquid flow path and the said liquid outlet and with liquid flow path and liquid outlet and is connected, from the effusive liquid of liquid flow path through the outlet of liquid-through hole influent; The cavity floor of said valve seat is provided with fixed leg; Said spring upper end is set on the last fixed leg of valve rod, and the lower end is set on the following fixed leg of valve seat; Between said valve seat and the valve casing sealing ring is housed, through heat seal or the supersonic thermal setting encapsulation of heating.
The utility model has the advantages that:
1. this utility model has reduced repeated multiple times tube sealing, washing pipe program, has alleviated nursing work load, has improved work efficiency; Also reduced simultaneously phlebitic incidence rate, simultaneously when transfusion device or syringe are extracted, malleation needleless coupling assembling can be pushed forward into medicinal liquid moment; Effect is continual and steady, and normal saline is stressed in the sleeve influences slowly continual being pushed forward into, and makes and is remaining pressure in the indwelling needle catheter; Finish until pressure release, do not need tube sealing fully, this moment, remaining needle reached the time of replacing; Make whole therapeutic process avoid the blood backflow to form thrombosis and cause plugging, alleviated the misery of sufferer;
2. this utility model adopts the needleless operation, has reduced medical personnel's acupuncture risk.
Description of drawings
Below in conjunction with accompanying drawing and embodiment this utility model is further described:
Structural representation when Fig. 1 is in closed condition for embodiment one;
Structural representation when Fig. 2 is in open mode for embodiment one;
Structural representation when Fig. 3 is in closed condition for embodiment two;
Structural representation when Fig. 4 is in open mode for embodiment two
Fig. 5 is the structural representation of embodiment three;
Fig. 6 is the structural representation of embodiment four.
Wherein: 1 is malleation needleless connector; 11 is valve casing; 12 is valve rod; 13 is spring; 14 is valve seat; 15 is the liquid inlet; 16 is liquid outlet; 17 is liquid flow path; 18 is steam vent; 19 is sealing ring; 110 is last sealing ring; 111 is lower seal; 112 is inner chamber; 113 is exocoel; 114 is arm; 115 is female luer; 116 is cavity; 117 is liquid-through hole; 118 are following fixed leg; 119 is the inclined-plane; 120 is last fixed leg;
2 is continuous positive pressure spare; 21 is shell; 22 is spring; 23, check valve joint; 24 is capillary tube; 25 is connection tube; 26 is filter; 27 is compressed air;
3 is two to lead to fitting;
4 is three-way connector.
The specific embodiment
Below in conjunction with specific embodiment such scheme is further specified.Should be understood that these embodiment are used to the present invention is described and are not limited to limit scope of the present invention.The implementation condition that adopts among the embodiment can be done further adjustment according to the condition of concrete producer, and not marked implementation condition is generally the condition in the normal experiment.
Embodiment one:
The described a kind of sustainable malleation needleless coupling assembling of present embodiment; Like Fig. 1, shown in Figure 2; The continuous positive pressure spare 2 that it comprises connector, is used with connector, described continuous positive pressure spare 2 comprises sleeve, piston and the capillary tube 24 that is communicated with sleeve, described piston is located in the sleeve; The piston lower end is provided with provides the spring 22 that continues pressure; Described sleeve top is provided with check valve joint 23, and described sleeve forms the medicinal liquid path that is connected with the inner fluid passage of connector with capillary tube 24, on the described medicinal liquid path filter 26 is housed; The outside of said continuous positive pressure spare 2 is provided with shell 21, and sleeve and capillary tube 24 are loaded in the shell 21, and the check valve joint 23 at sleeve top is positioned at the outside of shell 21; Said continuous positive pressure spare 2 also comprises connection tube 25; Said connection tube 25 is installed on telescopic upper end; Said filter 26 is loaded between connection tube 25 and the capillary tube 24, and the inlet of filter 26 links to each other with the outlet of connection tube 25, and the outlet of filter 26 links to each other with the inlet of capillary tube 24.
Said check valve joint 23 is for being with externally threaded 6:100 female luer, perhaps for being with externally threaded non-6:100 interface; Said sleeve is that plastics or other materials are processed; Said fluid path or capillary tube 24 are processed for medical plastic or the stainless steel bar of embedded trough of belt mouth distortion is processed.
Said connector is a malleation needleless connector, and described malleation needleless connector comprises valve casing 11, valve rod 12, spring 13, valve seat 14.Said valve casing 11 is a three-way valve, and the arm 114 of said three-way valve is arranged on the side of valve casing 11, and said arm 114 upper ends are provided with the 6:100 female luer 115 of standard, and said female luer 115 is equipped with the sealing end cap.Only illustrate in the drawings can a plurality of arms be set according to the requirement of reality transfusion on valve casing 11 by an arm 114.Said valve casing 11 is a hollow structure with valve seat 14, and valve casing 11 is set in the outside of valve seat 14, and sealing ring 19 is housed between the two, and through heat seal or the supersonic thermal setting encapsulation of heating.The upper end of said valve casing 11 is provided with liquid inlet 15, and the upper end of liquid inlet 15 is provided with the external screw thread interface of standard.
The top and bottom of said valve rod 12 are respectively equipped with groove, and sealing ring 110 and lower seal 111 are housed respectively in the groove.Be provided with in the said valve rod 12 one be opened on its bottom surface cavity 116, cavity 116 bottom surfaces are provided with fixed leg 120 on.The end face of said valve rod 12 is an inclined-plane 119, prevents to produce when malleation needleless connector is connected with external connector slippage.
Said valve seat 14 is provided with one and is opened on its vertical cavity, the bottom surface of said cavity be provided with one be used for fixing spring 13 following fixed leg 118.The lower end of said valve rod 12 is stretched in the cavity of valve seat 14, and spring 13 is arranged between valve rod 12 and valve seat 14 cavity floor, and the upper end is set on the last fixed leg 120 of valve rod 12, and the lower end is set in down on the fixed leg 118.The bottom of valve seat 14 is provided with and makes inner chamber and extraneous two steam vents 18 that communicate, and the lower end of valve seat 14 is provided with liquid outlet 16, between liquid inlet 15 and liquid outlet 16, is provided with liquid flow path 17, and said liquid flow path 17 is connected with arm 114.Said valve seat 14 bottoms also are provided with liquid-through hole 117; Said liquid-through hole 117 is arranged between liquid flow path 17 and the said liquid outlet 16 and with liquid flow path 17 and liquid outlet 16 and is connected; 15 liquid that flow into arm 114 get into liquid flow path 17 backs through liquid-through hole 117 influents outlet 16 from the liquid inlet, thereby can carry out the transfusion of various liquid simultaneously.
Said malleation needleless connector 1 is structure as a whole with continuous positive pressure spare 22, also can process two above independent structures according to actual needs, is fixed then together or supporting use simultaneously.Said check valve joint 23 also can be non-6:100 joint.Said filter 26 also can be in sebific duct 22 inner bottom, perhaps at check valve joint 23 places, and the perhaps any position on capillary tube 24.The upper surface of valve rod 12 also can be provided with equally distributed three salient points, and said salient point is equilateral triangle and distributes, and sealing ring 110 is preferably the butterfly sealing ring with lower seal 111 on it, and sealing ring 19 is preferably O-ring seal; Steam vent 18 on the valve seat 14 can be provided with a plurality of according to actual needs; The interface of arm 114 upper ends also can be non-6:100 interface.
Embodiment two:
The described a kind of sustainable malleation needleless coupling assembling of present embodiment; Like Fig. 3, shown in Figure 4; The continuous positive pressure spare 2 that it comprises connector, is used with connector, described continuous positive pressure spare 2 comprises sleeve, piston and the capillary tube 24 that is communicated with sleeve, described piston is located in the sleeve; The piston lower end is provided with provides the compressed air 27 that continues pressure; Described sleeve top is provided with check valve joint 23, and described sleeve forms the medicinal liquid path that is connected with the inner fluid passage of connector with capillary tube 24, on the described medicinal liquid path filter 26 is housed; The outside of said continuous positive pressure spare 2 is provided with shell 21, and sleeve and capillary tube 24 are loaded in the shell 21, and the check valve joint 23 at sleeve top is positioned at the outside of shell 21; Said continuous positive pressure spare 2 also comprises connection tube 25; Said connection tube 25 is installed on telescopic upper end; Said filter 26 is loaded between connection tube 25 and the capillary tube 24, and the inlet of filter 26 links to each other with the outlet of connection tube 25, and the outlet of filter 26 links to each other with the inlet of capillary tube 24.
Said check valve joint 23 is for being with externally threaded 6:100 female luer, perhaps for being with externally threaded non-6:100 interface; Said sleeve is that plastics or other materials are processed; Said fluid path or capillary tube 24 are processed for medical plastic or the stainless steel bar of embedded trough of belt mouth distortion is processed.
Said connector is a malleation needleless connector, and said malleation needleless connector 1 comprises valve casing 11, valve rod 12, spring 13, valve seat 14.Said valve casing 11 is a two-port valve, and 15 outsides, liquid inlet of said two-port valve are provided with male connection.Said valve casing 11 is a hollow structure with valve seat 14, and valve casing 11 is set in the outside of valve seat 14, and sealing ring 19 is housed between the two, and through heat seal or the supersonic thermal setting encapsulation of heating.The upper end of said valve casing 11 is provided with liquid inlet 15, and the upper end of liquid inlet 15 is provided with the external screw thread interface of standard.
The top and bottom of said valve rod 12 are respectively equipped with groove, and sealing ring 110 and lower seal 111 are housed respectively in the groove.Be provided with in the said valve rod 12 one be opened on its bottom surface cavity 116, cavity 116 bottom surfaces are provided with fixed leg 120 on.The end face of said valve rod 12 is an inclined-plane 119, prevents to produce when malleation needleless connector is connected with external connector slippage.
Said valve seat 14 is provided with one and is opened on its vertical cavity, the bottom surface of said cavity be provided with one be used for fixing spring 13 following fixed leg 118.The lower end of said valve rod 12 is stretched in the cavity of valve seat 14, and spring 13 is arranged between valve rod 12 and valve seat 14 cavity floor, and the upper end is set on the last fixed leg 120 of valve rod 12, and the lower end is set in down on the fixed leg 118.The bottom of valve seat 14 is provided with and makes inner chamber and extraneous two steam vents 18 that communicate, and the lower end of valve seat 14 is provided with liquid outlet 16, between liquid inlet 15 and liquid outlet 16, is provided with liquid flow path 17, and said liquid flow path 17 is connected with arm 114.Said valve seat 14 bottoms also are provided with liquid-through hole 117; Said liquid-through hole 117 is arranged between liquid flow path 17 and the said liquid outlet 16 and with liquid flow path 17 and liquid outlet 16 and is connected; 15 liquid that flow into arm 114 get into liquid flow path 17 backs through liquid-through hole 117 influents outlet 16 from the liquid inlet, thereby can carry out the transfusion of various liquid simultaneously.
Said malleation needleless connector 1 is structure as a whole with continuous positive pressure spare 22, also can process two above independent structures according to actual needs, is fixed then together or supporting use simultaneously.Said check valve joint 23 also can be non-6:100 joint.Said filter 26 also can be in sebific duct 22 inner bottom, perhaps at check valve joint 23 places, and the perhaps any position on capillary tube 24.The upper surface of valve rod 12 also can be provided with equally distributed three salient points, and said salient point is equilateral triangle and distributes, and sealing ring 110 is preferably the butterfly sealing ring with lower seal 111 on it, and sealing ring 19 is preferably O-ring seal; Steam vent 18 on the valve seat 14 can be provided with a plurality of according to actual needs; The interface of arm 114 upper ends also can be non-6:100 interface.
Like Fig. 2; Shown in Figure 4; When malleation needleless connector 1 is in open mode; Check valve joint 23 connects outer infusion set, and normal saline gets in the sleeve spring or compressed air 27 are squeezed, and normal saline slowly is pressed in the liquid flow path 17 of malleation needleless connector 1 through capillary tube 24 under the resilience compressing of sleeve inner spring or compressed air 27; Simultaneously, the upper end of valve rod 12 is pushed by external connector, valve rod 12 and then compression spring 13; Compressed air 27 in the inner chamber 112 of liquid inlet 15 sealings is discharged from steam vent 18; Make valve rod 12 stressed reducing in the compression process, sealing ring 110 drops under the liquid inlet 15 on this moment, and the liquid flow path 17 in the valve is opened; Medicinal liquid is 15 inputs from the liquid inlet; Flow through liquid flow path 17 in the valve gets into the liquid-through hole 117 of valve seat 14, then in liquid outlet 16 flows into valve seat 14 bottoms link to each other remaining needle or inlying catheter; Realize the completion of infusion process, in this process, have a fraction of medicinal liquid and get into the exocoel of opening to liquid inlet 15 113.
Infused at malleation needleless connector 1, sleeve will continue lentamente normal saline to be pushed, and make and remain normal pressure in the indwelling needle catheter.Like Fig. 1, as shown in Figure 3, when malleation needleless connector was in closed condition, spring 13 restored to the original state, and under the restoring force effect of spring 13, moved sealing liquid inlet 15 on the valve rod 12.At this moment; It is big that the volume of inner chamber 112 becomes; Inner chamber 112 outer liquid flow path 17 volumes diminish, because the volume-variation of liquid flow path 17 produces the normal pressure that liquid residual in the valve is promoted to liquid outlet; Make the medicinal liquid in the exocoel 113 continue to enter in the liquid-through hole 117 of valve seat 14 through liquid flow path 17; Flow out from liquid outlet 16 then, the medicinal liquid in the sebific duct 22 discharges fully, has avoided medicinal liquid like this because the caused medicinal liquid of negative pressure that produces when screwing out external connector refluxes even blood refluxes.
Embodiment three:
The described a kind of sustainable malleation needleless coupling assembling of present embodiment; As shown in Figure 5; Comprise two lead to fitting 3, with two lead to the continuous positive pressure spare 2 that fitting 3 is used, in the present embodiment, said two lead to fitting 3 and two the independent structures of continuous positive pressure spare 2 for using simultaneously; Also can perhaps be structure as a whole for a plurality of absolute construction that are fixed together.Said filter 26 is installed on the capillary tube 24, perhaps is installed on the sleeve outer upper ends, perhaps is installed on check valve joint 23 places.Said check valve joint 23 is for being with externally threaded 6:100 female luer, perhaps for being with externally threaded non-6:100 interface.The sleeve assembly of said automatic generation pressure, the capillary tube 24 that is communicated with sleeve, said sleeve are that plastics or other materials are processed; Said fluid path or capillary tube 24 are processed for medical plastic or the stainless steel bar of embedded trough of belt mouth distortion is processed.
Embodiment four:
The described a kind of sustainable malleation needleless coupling assembling of present embodiment; Continuous positive pressure spare 22 as shown in Figure 6, as to comprise three-way connector 4, be used with three-way connector 4, said continuous positive pressure spare 2 comprises the sleeve assembly of automatic generation pressure; The capillary tube 24 that is communicated with sleeve; Said sleeve top is provided with check valve joint 23, and said sleeve forms the medicinal liquid path that is connected with three-way connector 4 inner fluid passages with capillary tube 24, on the said medicinal liquid path filter 26 is housed; The outside of said continuous positive pressure spare 22 is provided with shell 21, and sleeve and capillary tube 24 are loaded in the shell 21, and the check valve joint 23 at sleeve top is positioned at the outside of shell 21.Said continuous positive pressure spare 2 also comprises connection tube 25; Said connection tube 25 is installed on the lower end of sebific duct 22; Said filter 26 is loaded between connection tube 25 and the capillary tube 24, and the inlet of filter 26 links to each other with the outlet of connection tube 25, and the outlet of filter 26 links to each other with the inlet of capillary tube 24.
In the present embodiment, said three-way connector 4 is two independent structures using simultaneously with continuous positive pressure spare 22, also can perhaps be structure as a whole for a plurality of absolute construction that are fixed together.Said filter 26 is installed on the capillary tube 24, perhaps is installed on the sleeve outer upper ends, perhaps is installed on check valve joint 23 places.Said check valve joint 23 is for being with externally threaded 6:100 female luer, perhaps for being with externally threaded non-6:100 interface.The sleeve assembly of said automatic generation pressure, the capillary tube 24 that is communicated with sleeve, said sleeve are that plastics or other materials are processed; Said fluid path or capillary tube 24 are processed for medical plastic or the stainless steel bar of embedded trough of belt mouth distortion is processed.
In the present embodiment, the stainless steel bar that said fluid path or capillary tube 24 are processed for medical plastic or embedded trough of belt mouth is out of shape is processed.Because stimulating the menstrual flow of fluid path is too tiny, cause to be processed with certain degree of difficulty, so adopt fluid path or capillary tube 24 to become the method for warp, promptly after adding notch on working of plastics or the stainless steel bar, be embedded in working of plastics or the capillary tube 24.
This utility model has reduced repeated multiple times tube sealing, washing pipe program, has alleviated nursing work load, has improved work efficiency; Also reduced simultaneously phlebitic incidence rate, simultaneously when transfusion device or syringe are extracted, malleation needleless connector can be pushed forward into medicinal liquid moment; Check valve joint 23 connects outer infusion set; Normal saline gets in the sleeve spring or compressed air 27 is squeezed, and normal saline slowly is pressed into through capillary tube 24 under the resilience compressing of sleeve inner spring or compressed air 27, makes and is remaining pressure in the indwelling needle catheter; Do not need tube sealing fully; This moment, remaining needle reached the time of replacing, made whole therapeutic process avoid the blood backflow to form thrombosis and caused plugging, had alleviated the misery of sufferer; This utility model adopts the needleless operation, has reduced medical personnel's acupuncture risk.
Above-mentioned instance only is explanation technical conceive of the present invention and characteristics, and its purpose is to let the people who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalent transformations that spirit is done according to the present invention or modification all should be encompassed within protection scope of the present invention.
Claims (10)
1. sustainable malleation needleless coupling assembling; The continuous positive pressure spare that it comprises connector, is used with connector; It is characterized in that described continuous positive pressure spare comprises sleeve, piston and the capillary tube that is communicated with sleeve, described piston is located in the sleeve; The piston lower end is provided with provides spring or the compressed air that continues pressure; Described sleeve top is provided with the check valve joint, and described sleeve forms the medicinal liquid path that is connected with the inner fluid passage of connector with capillary tube, on the described medicinal liquid path filter is housed.
2. sustainable malleation needleless coupling assembling according to claim 1 is characterized in that the outside of described continuous positive pressure spare is provided with shell, and sleeve and capillary tube are loaded in the shell, and the check valve joint at sleeve top is located at the outside of shell.
3. sustainable malleation needleless coupling assembling according to claim 1 is characterized in that, described connector is that malleation needleless connector or two leads to fitting or three-way connector; Said connector and continuous positive pressure spare are structure as a whole, and perhaps a plurality of absolute construction for being fixed together perhaps are a plurality of independent structure of using simultaneously.
4. sustainable malleation needleless coupling assembling according to claim 3 is characterized in that said malleation needleless connector (1) comprises valve casing (11), valve rod (12), spring (13), valve seat (14); Said valve casing (11) and valve seat (14) are hollow structure; Valve casing (11) is set in the outside of valve seat (14); And be tightly connected with valve seat (14), the upper end of said valve casing (11) is provided with liquid inlet (15), and the lower end of valve seat (14) is provided with liquid outlet (16); Between liquid inlet (15) and liquid outlet (16), be provided with liquid flow path (17), the bottom of said valve seat (14) is provided with steam vent (18); The lower end of said valve rod (12) is stretched in the cavity of valve seat (14), and said spring (13) is arranged between valve rod (12) and valve seat (14) cavity floor; The top and bottom of said valve rod (12) are respectively equipped with groove; Sealing ring (110) and lower seal (111) are housed respectively in the groove, and said lower seal (111) is divided into the cavity of valve seat (14) to inner chamber (112) of liquid inlet (15) sealing and the exocoel of opening to liquid inlet (15) (113).
5. sustainable malleation needleless coupling assembling according to claim 1, it is characterized in that: said filter is installed on the capillary tube, perhaps is installed on the sleeve inner bottom, perhaps is installed on the sleeve or the check valve joint.
6. sustainable malleation needleless coupling assembling according to claim 1; It is characterized in that: said continuous positive pressure spare also comprises connection tube; Said connection tube is installed on telescopic upper end; Said filter is loaded between connection tube and the capillary tube, and the inlet of filter links to each other with the outlet of connection tube, and the outlet of filter links to each other with inlet capillaceous.
7. according to claim 1 or 2 or 5 described sustainable malleation needleless coupling assemblings, it is characterized in that: said check valve joint is for being with externally threaded 6:100 female luer, perhaps for being with externally threaded non-6:100 interface.
8. according to claim 1 or 2 or 5 or 6 described sustainable malleation needleless coupling assemblings, it is characterized in that: said sleeve is that plastics are processed; Said capillary tube is that medical plastic is processed or the stainless steel bar of embedded trough of belt mouth distortion is processed.
9. sustainable malleation needleless coupling assembling according to claim 4 is characterized in that: said valve casing (11) is a two-port valve, and the liquid inlet of said two-port valve (15) outside is provided with male connection; Perhaps valve casing (11) is a three-way valve; The outside, the liquid inlet of three-way valve (15) is provided with male connection; The arm of three-way valve (114) is connected with liquid flow path (17); Said arm (114) upper end is provided with the 6:100 female luer (115) or the non-6:100 interface of standard, and said female luer (115) is equipped with the sealing end cap.
10. sustainable malleation needleless coupling assembling according to claim 4 is characterized in that: be provided with in the said valve rod (12) one be opened on its bottom surface cavity (116), cavity (116) bottom surface is provided with fixed leg on (120); The last sealing ring (110) of said valve rod (12) is an interference fit with the inwall of said liquid inlet (15), is interference fit between the inwall of the cavity of lower seal (111) and valve seat (14); The end face of said valve rod (12) is an inclined-plane (119), and perhaps end face is provided with and is three salient points that equilateral triangle distributes; Said valve seat (14) bottom is provided with several voltage supply steam vent (18) that air discharges that contracts; Said valve seat (14) bottom is provided with liquid-through hole (117); Said liquid-through hole (117) is arranged between liquid flow path (17) and the said liquid outlet (16) and with liquid flow path (17) and liquid outlet (16) and is connected, from the effusive liquid of liquid flow path (17) through liquid-through hole (117) influent outlet (16); The cavity floor of said valve seat (14) is provided with fixed leg (118); Said spring (13) upper end is set on the last fixed leg (120) of valve rod (12), and the lower end is set on the following fixed leg (118) of valve seat (14); Between said valve seat (14) and the valve casing (11) sealing ring (119) is housed, through heat seal or the supersonic thermal setting encapsulation of heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203208747U CN202397883U (en) | 2011-08-30 | 2011-08-30 | Continuous and positive pressure non-needle connecting assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203208747U CN202397883U (en) | 2011-08-30 | 2011-08-30 | Continuous and positive pressure non-needle connecting assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202397883U true CN202397883U (en) | 2012-08-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203208747U Expired - Lifetime CN202397883U (en) | 2011-08-30 | 2011-08-30 | Continuous and positive pressure non-needle connecting assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202397883U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105214167A (en) * | 2015-10-23 | 2016-01-06 | 谢世庚 | The method of pressure-fired remaining needle and generation pressure-fired preventing thrombosis thereof |
| CN108815698A (en) * | 2018-07-06 | 2018-11-16 | 苏州鑫康道医疗科技有限公司 | Continuous positive pressure connector |
| CN111956949A (en) * | 2020-08-21 | 2020-11-20 | 宁湘龙 | Continuous positive pressure infusion joint |
| CN112451759A (en) * | 2020-11-24 | 2021-03-09 | 四川大学华西医院 | PICC pipe booster unit |
| CN114223939A (en) * | 2021-11-05 | 2022-03-25 | 山东将军烟草新材料科技有限公司 | Easy abluent automatic perfuming device of push type |
-
2011
- 2011-08-30 CN CN2011203208747U patent/CN202397883U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105214167A (en) * | 2015-10-23 | 2016-01-06 | 谢世庚 | The method of pressure-fired remaining needle and generation pressure-fired preventing thrombosis thereof |
| CN108815698A (en) * | 2018-07-06 | 2018-11-16 | 苏州鑫康道医疗科技有限公司 | Continuous positive pressure connector |
| CN111956949A (en) * | 2020-08-21 | 2020-11-20 | 宁湘龙 | Continuous positive pressure infusion joint |
| CN112451759A (en) * | 2020-11-24 | 2021-03-09 | 四川大学华西医院 | PICC pipe booster unit |
| CN112451759B (en) * | 2020-11-24 | 2023-04-28 | 四川大学华西医院 | PICC pipe booster unit |
| CN114223939A (en) * | 2021-11-05 | 2022-03-25 | 山东将军烟草新材料科技有限公司 | Easy abluent automatic perfuming device of push type |
| CN114223939B (en) * | 2021-11-05 | 2024-06-07 | 山东将军烟草新材料科技有限公司 | Press type automatic fragrance-giving device easy to clean |
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Address after: 215101 No. 3, new road, Suzhou Industrial Park, Jiangsu, China Patentee after: SUZHOU LINHUA MEDICAL INSTRUMENT CO., LTD. Address before: 215101 No. 3, new road, Suzhou Industrial Park, Jiangsu, China Patentee before: Linhua Medical Appliances Co., Ltd., Suzhou |
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