CN109498874A - A kind of extracorporeal circulation pipeline for venous blood dialysis - Google Patents
A kind of extracorporeal circulation pipeline for venous blood dialysis Download PDFInfo
- Publication number
- CN109498874A CN109498874A CN201811602510.0A CN201811602510A CN109498874A CN 109498874 A CN109498874 A CN 109498874A CN 201811602510 A CN201811602510 A CN 201811602510A CN 109498874 A CN109498874 A CN 109498874A
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- China
- Prior art keywords
- lid
- hose
- extracorporeal circulation
- connect
- liquid outlet
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- 239000008280 blood Substances 0.000 title claims abstract description 61
- 210000004369 blood Anatomy 0.000 title claims abstract description 61
- 230000004087 circulation Effects 0.000 title claims abstract description 30
- 238000000502 dialysis Methods 0.000 title claims abstract description 26
- 230000002439 hemostatic effect Effects 0.000 claims abstract description 48
- 239000007788 liquid Substances 0.000 claims abstract description 36
- 210000003462 vein Anatomy 0.000 claims abstract description 25
- 230000037361 pathway Effects 0.000 claims description 16
- 238000005452 bending Methods 0.000 claims description 15
- 241000239290 Araneae Species 0.000 claims description 14
- 239000012530 fluid Substances 0.000 claims description 3
- 210000001367 artery Anatomy 0.000 claims description 2
- 238000004458 analytical method Methods 0.000 claims 2
- 238000009738 saturating Methods 0.000 claims 1
- 210000004204 blood vessel Anatomy 0.000 abstract description 5
- 230000017531 blood circulation Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 9
- 230000023597 hemostasis Effects 0.000 description 5
- 238000001631 haemodialysis Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 101000803709 Homo sapiens Vitronectin Proteins 0.000 description 1
- 235000005121 Sorbus torminalis Nutrition 0.000 description 1
- 244000152100 Sorbus torminalis Species 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000023555 blood coagulation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- 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
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
- A61M1/3621—Extra-corporeal blood circuits
- A61M1/3639—Blood pressure control, pressure transducers specially adapted therefor
-
- 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
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
-
- 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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/28—Clamping means for squeezing flexible tubes, e.g. roller clamps
- A61M39/281—Automatic tube cut-off devices, e.g. squeezing tube on detection of air
-
- 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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/28—Clamping means for squeezing flexible tubes, e.g. roller clamps
- A61M39/286—Wedge clamps, e.g. roller clamps with inclined guides
Abstract
The present invention relates to a kind of extracorporeal circulation pipelines for venous blood dialysis, including dialysate connector, pressure sensor, vein dripping chamber, second hemostatic clamp, puncture needle pipe joint, third hose, 5th hose and needle base bye-pass, the liquid outlet of the dialysate connector is connect with the inlet of the pressure sensor, the liquid outlet of the pressure sensor is connect with the inlet of the vein dripping chamber by the third hose, the liquid outlet of the vein dripping chamber is connect by the 5th hose with the puncture needle pipe joint, the upper end of the vein dripping chamber is equipped with the first branch pipe interface, the outlet end of the needle base bye-pass is connect with first branch pipe interface, second hemostatic clamp is set on the 5th hose.A kind of extracorporeal circulation pipeline for venous blood dialysis provided by the invention, can detecte the pressure of blood flow in blood vessel, improves the precision of testing result, meanwhile, it can prevent hemostatic clamp from pressing from both sides inclined risk.
Description
Technical field
The present invention and haemodialysis extracorporeal circulation pipeline construction applications, and in particular to it is a kind of for venous blood dialysis
Extracorporeal circulation pipeline.
Background technique
Haemodialysis extracorporeal circulation pipeline be for human vitronectin dialysis connecting line, main function be connection human body with
The intracorporal blood of people is transported to dialyzer and purified, and leads back to human body by dialyzer, forms circulation.Role is generation
For blood vessel, the pipeline for serving as blood flow is used.Haemodialysis extracorporeal circulation set tube routes two groups of pipeline groups of arterial and duct of Arantius
At being connect respectively with dialyzer, and be respectively connected to human body artery and vein.
Haemodialysis extracorporeal circulation pipeline in use, needs the pressure state in signal piping, pressure sensor
Blood can be completely cut off and conduct the pressure in pipeline, achieve the purpose that monitor pipeline inner pressure.In the prior art, for detecting blood
The pressure sensor of pressure is not usually direct and contacting blood, crosses blood since current structure cannot be connected directly between in blood vessel,
The pressure sensor of this structure is generally connected to dripping chamber upper end branch pipe position, for testing dripping chamber cavity pressure, rather than
The pressure of blood flow in blood vessel, testing result error are larger.In addition, pipeline needs as needed, to lead in use
Closure hemostatic clamp is crossed to clamp pipeline, pipe passage is completely cut off, prevents loss of blood, control blood flow direction.As shown in Figure 1, existing
Having technology hemostasis clamping structure is that the entire button bit plane on hemostatic clamp clasps hemostasis contained side, since the right and left does not limit
Position, hemostatic clamp are easy folder partially, there is the risk for causing tube body that could not clamp completely.
Summary of the invention
The present invention provides a kind of extracorporeal circulation pipelines for venous blood dialysis, can detecte blood in blood vessel
The pressure of flowing improves the precision of testing result, meanwhile, it can prevent hemostatic clamp from pressing from both sides inclined risk.
To achieve the above object, the present invention provides a kind of extracorporeal circulation pipelines for venous blood dialysis, including with
Stop in the dialysate connector being connect with dialyzer, for the pressure sensor of fluid pressure, vein dripping chamber, second in signal piping
Blood folder, puncture needle pipe joint, third hose, the 5th hose and needle base bye-pass, the liquid outlet of the dialysate connector
It is connect with the inlet of the pressure sensor, the inlet of the liquid outlet of the pressure sensor and the vein dripping chamber is logical
The third hose connection is crossed, the liquid outlet of the vein dripping chamber passes through the 5th hose and the puncture needle piping connection
Connector connection, the upper end of the vein dripping chamber are equipped with the first branch pipe interface, the outlet end of the needle base bye-pass with it is described
The connection of first branch pipe interface, second hemostatic clamp are set on the 5th hose.
Preferably, the pressure sensor includes pressure conduction structure and pressure sensitive device, and the pressure passes
Guide structure includes for piping connection and in conducting structure ontology, diaphragm, the first lid and the conduit of hollow tubular, the biography
The side wall of guide structure ontology is equipped with opening, the side wall sealed connection of first lid and conducting structure ontology, the opening position
In the inside of first lid, the diaphragm be set between the conducting structure ontology and the first lid and with the opening
It being tightly connected, the diaphragm and first lid interval are arranged and form pressure chamber between the diaphragm and the first lid,
The lower end of the conduit is inserted in the inside of first lid and is connected to the pressure chamber, the upper end of the conduit with it is described
The connection of pressure sensitive device, the liquid outlet of the dialysate connector are connect with the inlet of the conducting structure ontology, the conduction
The liquid outlet of structural body is connect with the inlet of the vein dripping chamber by the third hose.
Preferably, setting is heaved in the inside of the diaphragm towards the conducting structure ontology；First lid
Including the arcwall face backwards to diaphragm setting；The conducting structure ontology is equipped with identical as the diaphragm shapes and towards outside
The curved sections heaved, the curved sections are oppositely arranged with the opening.
Preferably, the vein dripping chamber includes dripping chamber ontology, the top and bottom difference of dripping chamber ontology
Exported equipped with blood entry port and blood, the top of the dripping chamber inner body wall is equipped with feed pathway, the feed pathway it is upper
End is connect with the blood entry port, and the side wall of the lower end closed of the feed pathway and the feed pathway is equipped with opening.
Preferably, the blood exit is equipped with the strainer in cylindrical shape, the lower end of the dripping chamber ontology
Equipped with liquid outlet channel, the upper end of the liquid outlet channel is blood outlet, and it is logical that the liquid out is fixed in the lower end of the strainer
The inside in road, the inner wall on the liquid outlet channel top, which is equipped with, to extend internally and the lower end of the strainer can be stopped to enter dripping chamber sheet
The annular stop protrusion in internal portion, the side wall of the lower end of the strainer are equipped with annular stop corresponding with the annular stop protrusion
Groove, the strainer are fixed on the annular stop high spot of the liquid outlet channel by the annular stop groove.
Preferably, the needle base bye-pass includes the 4th hose, needle base, needle base lid and the first hemostasis
Folder, one end of the 4th hose are connect with first branch pipe interface, the other end of the 4th hose and the needle base
One end connection, the needle base lid connect with the other end of the needle base.
Preferably, first hemostatic clamp it is identical as the structure of second hemostatic clamp and including the first clamp arm,
One end of linking arm and the second clamp arm, first clamp arm is connect by the linking arm with the first end of second clamp arm,
The top of second clamp arm is towards the first clamp arm bending and forms the bending section being oppositely arranged with the linking arm, described
The other end of first clamp arm is equipped with the guide part extended inwardly, the appearance of the guide part and the junction of first clamp arm
Face is equipped with the second card slot, and the other end of second clamp arm is equipped with that extends inwardly and can be connected in second card slot
Two buckles, the bending section are equipped with pilot hole corresponding with the guide part, are connected in described the when described second
When in two draw-in groove, the guide part is located in the pilot hole, the linking arm be equipped be oppositely arranged with the pilot hole and
For the through-hole that pipeline passes through, the inner wall of first clamp arm is equipped with the first clamping towards second clamp arm side protrusion
Portion, the inner wall of second clamp arm are equipped with towards first clamp arm side protrusion and are oppositely arranged with first clamping part
Second clamping part.
Preferably, second clamp arm is equipped with close to the end of one end of second buckle backwards to described second
Buckle the first handle of side bending.
Preferably, the extracorporeal circulation pipeline for venous blood dialysis further includes flush-through connection, the punching
Washing connector includes the second lid and the joint body in hollow cylinder shape, and the both ends of the joint body are respectively defined as
One connecting pin and second connection end, second lid are snapped connection with first connecting pin, the side wall of the joint body
It is connected with spider, the end of the spider is concordant with the end of the first connecting pin of the joint body, and described
The outer wall of two lids is rotatably connected by the end of connector and the spider and second lid can turn to by
First connection end cap of the joint body is closed, and the connector, which is equipped with, to extend outwardly and the upper surface with second lid
Vertically disposed second handle, the second connection end are detachably connected with the puncture needle pipe joint.
Preferably, the extracorporeal circulation pipeline for venous blood dialysis further includes dialysate connector lid, described
Dialysate connector lid is detachably connected with the dialysate connector.
A kind of extracorporeal circulation pipeline for venous blood dialysis provided by above-mentioned technical proposal, by conducting structure
Diaphragm is set directly and contacting blood at the sidewall opening of ontology, blood stream is out-of-date, due to the variation of pressure, positive pressure or negative pressure
Apply, pressure conduction film agitates the upper and lower of pressure chamber, magnifies or air volume that compression pressure is intracavitary carrys out conducting pressure, and will
Conduit is connect with pressure sensitive device, to realize the conduction to pressure, and then convenient for the accurate detection to pressure.In addition, logical
It crosses and increases guide frame in hemostatic clamp, only when guide part is correctly inserted into pilot hole, the second buckle of hemostatic clamp could block
It is connected to the second card slot, and then realizes that the closure of hemostatic clamp clamps, when hemostatic clamp folder is inclined, guide part cannot be introduced into leading for hemostatic clamp
Xiang Kongzhong, hemostatic clamp can not clasp, and hemostatic clamp is caused to flick, and avoid the occurrence of hemostatic clamp folder partially, pipeline is caused to leak blood phenomenon.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of hemostatic clamp in the prior art；
Fig. 2 is structural schematic diagram of the invention；
Fig. 3 is the structural schematic diagram of the first hemostatic clamp；
Fig. 4 is the internal structure cross-sectional view of pressure conduction structure；
Fig. 5 is the partial enlarged view of lid and conducting structure ontology junction；
Fig. 6 is the structural schematic diagram (one) of pressure conduction structure；
Fig. 7 is the structural schematic diagram (two) of pressure conduction structure；
Fig. 8 is the structure sectional view of dripping chamber ontology；
Fig. 9 is the partial enlarged view in Fig. 8 at A；
Figure 10 is the structural schematic diagram of flush-through connection.
Wherein: 1, dialysate connector lid；2, dialysate connector；3, pressure conduction structure；4, vein dripping chamber；5, first female needle
Base；6, the second needle base lid；7, the second needle base；8, the first hemostatic clamp；9, the second hemostatic clamp；10, puncture needle piping connection connects
Head；11, flush-through connection；12, the first hose；13, the second hose；14, third hose；15, the 4th hose；16, the 5th hose；
301, conducting structure ontology；302, the first lid；303, conduit；304, arcwall face；305, diaphragm；306, third ring
Shape protrusion；307, first annular protrusion；308, first annular slot；309, the second annular protrusion；
401, liquid outlet channel；402, dripping chamber ontology；403, blood entry port；404, the first branch pipe interface；405, strainer；
406, feed pathway；407, it is open；408, annular stop groove；409, annular stop protrusion；
801, bending section；802, first handle；803, guide part；804, the second card slot；805, the first clamp arm；806, first
Clamping part；807, linking arm；808, through-hole；809, the second clamping part；810, the second clamp arm；811, pilot hole；812, the second card
Button；
1101, the second lid；1102, second handle；1103, spider；1104, reinforcing rib；1105, joint body；
1106, the first buckle；1107, plunger；1108, the first card slot.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
Fig. 2-10 is referred to, is a kind of extracorporeal circulation pipeline for venous blood dialysis provided by the present invention, including
Dialysate connector 2 for being connect with dialyzer, for the pressure sensor of fluid pressure, vein dripping chamber 4, in signal piping
Two hemostatic clamps 9, puncture needle pipe joint 10, third hose 14, the 5th hose 16, needle base bye-pass and dialysate connector lid
1, the liquid outlet of the dialysate connector 2 is connect with the inlet of the pressure sensor, the liquid outlet of the pressure sensor with
The inlet of the vein dripping chamber 4 is connected by the third hose 14, and the liquid outlet of the vein dripping chamber 4 passes through described
5th hose 16 is connect with the puncture needle pipe joint 10, and the upper end of the vein dripping chamber 4 is equipped with the first branch pipe and connects
Mouth 404, the outlet end of the needle base bye-pass is connect with first branch pipe interface 404, and second hemostatic clamp 9 is set to
On 5th hose 16.
Specifically, Fig. 4-7 is referred to, is the structural schematic diagram of pressure sensor provided by the present embodiment, the pressure
Sensor includes pressure conduction structure 3 and pressure sensitive device, the pressure conduction structure 3 include for piping connection and be in
Conducting structure ontology 301, diaphragm 305, the first lid 302 and the conduit 303 of hollow tubular, the conducting structure ontology 301
Side wall is equipped with opening, and the side wall of first lid 302 and conducting structure ontology 301 is tightly connected, and the opening is located at described
The inside of first lid 302, the diaphragm 305 be set between the conducting structure ontology 301 and the first lid 302 and with institute
It states opening to be tightly connected, the diaphragm 305 is with the setting of first lid 302 interval and in the diaphragm 305 and the first lid
Form pressure chamber between 302, the lower end of the conduit 303 be inserted in the inside of first lid 302 and with the pressure chamber
Connection, the upper end of the conduit 303 are connect with the pressure sensitive device, the liquid outlet of the dialysate connector 2 and the conduction
The inlet of structural body 301 connects, the inlet of the liquid outlet of the conducting structure ontology 301 and the vein dripping chamber 4
It is connected by the third hose 14, it is soft by the first hose 12, second between the conduit 303 and the pressure sensitive device
Pipe 13 and the connection of the first needle base 5.Specifically, direct by the way that diaphragm 305 is arranged at the sidewall opening of conducting structure ontology 301
With contacting blood, blood stream is out-of-date, and due to the variation of pressure, the application of positive pressure or negative pressure, pressure conduction film is to the upper of pressure chamber
Under agitate, magnify or air volume that compression pressure is intracavitary carry out conducting pressure, and conduit 303 is connect with pressure sensitive device,
To realize the conduction to pressure, and then convenient for the accurate detection to pressure.In addition, by the way that the lower end of conduit 303 is inserted in
The inside of first lid 302, such conduit 303 can be put in pressure chamber, and diaphragm 305 is complete towards the first lid 302
When sticking out, it can be arrived by top, capping on dead pressure chamber can not be pasted completely, prevent pressure chamber by complete overflow, volume in pressure chamber
It is no longer changed, and pressure transmitting is caused not gone out.
In the present embodiment, setting is heaved in the inside of the diaphragm 305 towards the conducting structure ontology 301, and described first
Lid 302 includes the arcwall face 304 backwards to the diaphragm 305 setting, and the conducting structure ontology 301 is equipped with and the diaphragm
305 shapes are identical and towards the curved sections that outside is heaved, and the curved sections are oppositely arranged with the opening, so, it is ensured that diaphragm
Blood between 305 and the inner wall of conducting structure ontology 301 always can be with proper flow, without blocking phenomenon.
Further, the outer edge of the diaphragm 305 is fixedly installed on first lid 302 and conducting structure ontology
301 junction, the upward bending of outer edge of the diaphragm 305 simultaneously form a first annular slot 308, first lid
302 lower end surface is equipped with corresponding with the first annular slot 308 and is embedded at first annular in the first annular slot 308
The outer surface of protrusion 307, the conducting structure ontology 301 is equipped with the second annular groove, and the lower end surface of first lid 302 is equipped with
The second annular protrusion 309 that is corresponding with second annular groove and being embedded in second annular groove, the diaphragm 305
Lower end surface is equipped with third annular groove, and the outer surface of the conducting structure ontology 301 is equipped with corresponding simultaneously with the third annular groove
The third annular protrusion 306 being embedded in the third annular groove, so, it is ensured that the first lid 302, diaphragm 305 and conduction
The stability connected between structural body 301.
Further, the 301 both ends inner hole of conducting structure ontology, outer diameter are all in accordance with standard luer taper design, tool
Body, the outer surface at 301 both ends of conducting structure ontology is respectively equipped with pluggable in the first step in a ring in pipeline
Position, the second step position in a ring that the inner wall at 301 both ends of conducting structure ontology is respectively equipped with for pipeline grafting, such as
This, the power conducting structure can also be easy to use, wildcard type with interpolation pipeline with external pipeline or even direct external accessories
By force.
Fig. 8-9 is referred to, is the structural schematic diagram of vein dripping chamber 4 provided in the present embodiment, the vein drip
Room 4 includes dripping chamber ontology 402, and the top and bottom of dripping chamber ontology 402 are respectively equipped with blood entry port 403 and blood outlet,
The top of 402 inner wall of dripping chamber ontology is equipped with feed pathway 406, and upper end and the blood of the feed pathway 406 enter
403 connection of mouth, the lower end closed of the feed pathway 406 and the side wall of the feed pathway 406 are equipped with opening 407.Specifically,
By being provided as the feed pathway 406 of turning structure in dripping chamber ontology 402, blood from the upper end of feed pathway 406 into
Enter, and flowed out from the side of the lower end of feed pathway 406, needs to turn one in feed pathway 406 curved to instill dripping chamber sheet again
The inside of body 402 reduces the fashionable impact force of blood stream, reduces blood coagulation risk.
Further, the blood exit is equipped with strainer 405, it is preferable that the strainer 405 is in cylindrical shape, described
The lower end of dripping chamber ontology 402 is equipped with liquid outlet channel 401, and the upper end of the liquid outlet channel 401 is blood outlet, the filter
The inside of the liquid outlet channel 401 is fixed in the lower end of net 405.For being filtered to blood, it is further preferred that it is described go out
The inner wall on 401 top of liquid channel is equipped with and extends internally and the lower end of the strainer 405 can be stopped to enter inside dripping chamber ontology 402
Annular stop protrusion 409, the side wall of the lower end of the strainer 405 is equipped with and the raised 409 corresponding annulars of the annular stop
Limiting groove 408, the strainer are convex by the annular stop that the annular stop groove 408 is fixed on the liquid outlet channel 401
It rises at 409.In this way, strainer 405 is assembled into the inside of dripping chamber on the outside of the dripping chamber, pass through the top of liquid outlet channel 401
Annular stop protrusion 409 is fixed by strainer 405 and limits, and the lower end of strainer 405 can not pass through annular stop protrusion 409 and enter drop
The inside of mouth room reduces the risk that strainer 405 falls off in this way, can effectively prevent strainer 405 from falling off and entering in dripping chamber.
Further, the upper end of the dripping chamber ontology 402 is additionally provided with first for connecting with needle base bye-pass
Branch pipe interface 404 is connected with needle base bye-pass at first branch pipe interface 404.Specifically, the needle base bye-pass packet
Include the 4th hose 15, the second needle base 7, the second needle base lid 6 and the first hemostatic clamp 8, one end of the 4th hose 15 and institute
The connection of the first branch pipe interface 404 is stated, the other end of the 4th hose 15 is connect with one end of the needle base, the needle base
Lid is connect with the other end of the needle base.
Fig. 3 is referred to, is the structural schematic diagram of the first hemostatic clamp 8 provided in the present embodiment, first hemostatic clamp 8
It is identical as the structure of second hemostatic clamp 9 and including the first clamp arm 805, linking arm 807 and the second clamp arm 810, described first
One end of clamp arm 805 is connect by the linking arm 807 with the first end of second clamp arm 810, second clamp arm 810
Top is towards 805 bending of the first clamp arm and forms the bending section 801 being oppositely arranged with the linking arm 807, and described first
The other end of clamp arm 805 is equipped with the guide part 803 extended inwardly, the connection of the guide part 803 and first clamp arm 805
The outer surface at place is equipped with the second card slot 804, and the other end of second clamp arm 810 is equipped with extension inwardly and can be connected in described
The second buckle 812 in second card slot 804, the bending section 801 are equipped with pilot hole corresponding with the guide part 803
811, when second buckle 812 is connected in second card slot 804, the guide part 803 is located at the pilot hole 811
Interior, the linking arm 807, which is equipped with, to be oppositely arranged and for the through-hole 808 that pipeline passes through with the pilot hole 811, and described first
The inner wall of clamp arm 805 is equipped with the first clamping part 806 towards 810 side of the second clamp arm protrusion, second clamp arm 810
Inner wall is equipped with towards second clamping part 805 side of the first clamp arm protrusion and be oppositely arranged with first clamping part 806
809.Specifically, by increasing guide frame in hemostatic clamp, only when guide part 803 is correctly inserted into pilot hole 811, hemostasis
Second buckle 812 of folder could be clamped to the second card slot 804, and then realize that the closure of hemostatic clamp clamps, when hemostatic clamp folder is inclined,
Guide part 803 cannot be introduced into the pilot hole 811 of hemostatic clamp, and hemostatic clamp can not clasp, and hemostatic clamp is caused to flick, and avoid the occurrence of only
Blood folder folder partially, causes pipeline to leak blood phenomenon.Specifically, when needing to be clamped pipeline, pipeline is made to pass sequentially through through-hole
808, between the first clamping part 806 and the second clamping part 809, pilot hole 811, when hemostatic clamp, which is closed, to be clamped, first folder
Portion 806 and the second clamping part 809 is held to clamp the pipeline between the first clamping part 806 and the second clamping part 809.
Further, for convenience of the opening of hemostatic clamp, in the present embodiment, second clamp arm 810 is close to second card
The end of one end of button 812 is equipped with the first handle 802 backwards to second buckle, 812 side bendings, when needs open hemostasis
When folder, as long as soon as breaking first handle 802, hemostatic clamp can be opened.
In the present embodiment, the guide part 803 and first clamp arm 805 setting at an acute angle, to facilitate guide part 803
Into in guide groove, it is preferable that the width of the guide part 803 is of same size with the pilot hole 811, so, it is ensured that
Only when guide part 803 is correctly inserted into pilot hole 811, the second buckle 812 of hemostatic clamp could be clamped to the second card slot 804,
And then realize that the closure of hemostatic clamp clamps, when hemostatic clamp folder is inclined, guide part 803 be cannot be introduced into the pilot hole 811 of hemostatic clamp,
Hemostatic clamp can not clasp, and hemostatic clamp is caused to flick.And the limit that may be implemented to hemostatic clamp or so is arranged such, when the second buckle
812 when being caught in the second card slot 804, and the first clamp arm 805 cannot be deviated relative to the second clamp arm 810 or so, be further ensured that clamping
Accuracy.
In addition, first clamping part 806 and the second clamping part 809 are the V-shaped protrusion in section in the present embodiment.
When second buckle 812 is connected in second card slot 804, first clamping part 806 and second clamping part
809 are in contact.The linking arm 807 is 810 one of elastic hinge or first clamp arm 805, linking arm 807 and the second clamp arm
Molding.The outer surface of first clamp arm 805 is equipped with anti-skid chequer, can conveniently take.The pilot hole 811 is along the bending section
Strip-shaped hole is arranged in 801 length direction.
Referring to Figure 10, the extracorporeal circulation pipeline for venous blood dialysis further includes flush-through connection 11, the punching
Washing connector 11 includes the second lid 1101 and the joint body 1105 in hollow cylinder shape, by the two of the joint body 1105
End is respectively defined as the first connecting pin and second connection end, and second lid 1101 is snapped connection with first connecting pin,
The side wall of the joint body 1105 is connected with spider 1103, the end of the spider 1103 and the joint body
The end of 1105 the first connecting pin is concordant, and the outer wall of second lid 1101 passes through connector and the spider 1103
End be rotatably connected and second lid 1101 can turn to and closes the first connection end cap of the joint body 1105,
The connector be equipped with extend outwardly and with the vertically disposed second handle 1102 in the upper surface of second lid 1101, institute
Second connection end is stated to be detachably connected with the puncture needle pipe joint 10.Specifically, the present embodiment passes through described second
Lid 1101 and the first connecting pin of the joint body 1105 snap connection, to guarantee the second lid 1101 and joint body
The stability connected between 1105；By setting spider 1103 and second handle 1102, so that the arm of force is increased, according to hook
Stock theorem, can reduce the dynamics for opening the second lid 1101.
In the present embodiment, the spider 1103 include in parallel with the axis of the joint body 1105 and connect with described
The spaced connecting plate of outer wall of head ontology 1105, the upper end of the connecting plate is connect with the first of the joint body 1105
The end at end is concordant, and the outer wall of second lid 1101 is rotatably connected by the upper end of connector and the connecting plate.This
Outside, the spider 1103 is equipped with reinforcing rib 1104 with the junction with the side wall of joint body 1105.In this way, can protect
The intensity of 1103 structure of spider is demonstrate,proved, the service life of flush-through connection 11 is improved.
Further, it is equipped with columned plunger 1107 in second lid 1101, the plunger 1107 and described the
The coaxial arrangement of two lids 1101, the outer diameter of the plunger 1107 is identical as the internal diameter of the joint body 1105, realizes butt joint
Sealing inside ontology 1105.The plunger 1107 is in hollow cylinder shape, and one end of the plunger 1107 is connected to described the
On the inner side end of two lids 1101, the other end of the plunger 1107 is equipped with inclined-plane and can be inserted in the joint body 1105
It is interior, so that the lid of the second lid 1101 be facilitated to close.
Preferably, in the present embodiment, the outer wall of first connecting pin is equipped with the first buckle 1106 of outwardly convex, described
The inner wall of second lid 1101 is equipped with and first buckle, 1106 corresponding first card slots 1108, the joint body 1105
It can be snapped connection by the first card slot 1108 of first buckle 1106 and second lid 1101, first buckle
1106 quantity is that 2,2 first buckles 1106 are relatively arranged on the outer wall of the joint body 1105, in this way, being not necessarily to
Whole circle screw thread is set, the material of non-key position is reduced, reduces product material, save the cost.The outer wall of the second connection end
The quantity of the second buckle 812 equipped with outwardly convex, second buckle 812 is 2, in this way, can facilitate flush-through connection 11 and blood
Liquid dialysis extracorporeal circulation pipeline connection.
In the description of the present invention, it should be noted that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second ", " third " are used for description purposes only, and it should not be understood as instruction or dark
Show relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and replacement can also be made, these are improved and replacement
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of extracorporeal circulation pipeline for venous blood dialysis, which is characterized in that including saturating for what is connect with dialyzer
It analyses connector, connect for the pressure sensor of fluid pressure, vein dripping chamber, the second hemostatic clamp, puncture needle pipeline in signal piping
Connector, third hose, the 5th hose and needle base bye-pass, the liquid outlet of the dialysate connector and the pressure sensor
The inlet of inlet connection, the liquid outlet of the pressure sensor and the vein dripping chamber is connected by the third hose
It connects, the liquid outlet of the vein dripping chamber is connect by the 5th hose with the puncture needle pipe joint, described quiet
The upper end of arteries and veins dripping chamber is equipped with the first branch pipe interface, and the outlet end of the needle base bye-pass and first branch pipe interface connect
It connects, second hemostatic clamp is set on the 5th hose.
2. the extracorporeal circulation pipeline according to claim 1 for venous blood dialysis, which is characterized in that the pressure passes
Sensor includes pressure conduction structure and pressure sensitive device, and the pressure conduction structure includes for piping connection and in hollow
Conducting structure ontology, diaphragm, the first lid and the conduit of tubulose, the side wall of the conducting structure ontology are equipped with opening, and described the
The side wall of one lid and conducting structure ontology is tightly connected, and the opening is located at the inside of first lid, and the diaphragm is set
It is placed between the conducting structure ontology and the first lid and is tightly connected with the opening, the diaphragm and first lid
Interval is arranged and forms pressure chamber between the diaphragm and the first lid, and the lower end of the conduit is inserted in first lid
Inside and be connected to the pressure chamber, the upper end of the conduit is connect with the pressure sensitive device, the dialysate connector
Liquid outlet is connect with the inlet of the conducting structure ontology, the liquid outlet of the conducting structure ontology and the vein dripping chamber
Inlet connected by the third hose.
3. the extracorporeal circulation pipeline according to claim 2 for venous blood dialysis, which is characterized in that the diaphragm court
Setting is heaved to the inside of the conducting structure ontology；First lid includes the arcwall face backwards to diaphragm setting；Institute
It states conducting structure ontology and is equipped with identical and towards the curved sections that outside is heaved as the diaphragm shapes, the curved sections are opened with described
Mouth is oppositely arranged.
4. the extracorporeal circulation pipeline according to claim 1 for venous blood dialysis, which is characterized in that the vein drop
Mouth room includes dripping chamber ontology, and the top and bottom of dripping chamber ontology are respectively equipped with blood entry port and blood outlet, the drip
The top of room inner body wall is equipped with feed pathway, and the upper end of the feed pathway is connect with the blood entry port, and the feed liquor is logical
The side wall of the lower end closed in road and the feed pathway is equipped with opening.
5. the extracorporeal circulation pipeline according to claim 4 for venous blood dialysis, which is characterized in that the blood goes out
The strainer in cylindrical shape is equipped at mouthful, the lower end of the dripping chamber ontology is equipped with liquid outlet channel, the upper end of the liquid outlet channel
For blood outlet, the inside of the liquid outlet channel, the inner wall on the liquid outlet channel top are fixed in the lower end of the strainer
Equipped with extend internally and can stop the strainer lower end enter dripping chamber body interior annular stop protrusion, the strainer
The side wall of lower end is equipped with annular stop groove corresponding with the annular stop protrusion, and the strainer is recessed by the annular stop
Slot is fixed on the annular stop high spot of the liquid outlet channel.
6. the extracorporeal circulation pipeline according to claim 5 for venous blood dialysis, which is characterized in that the needle base
Bye-pass include the 4th hose, needle base, needle base lid and the first hemostatic clamp, one end of the 4th hose with described first
Interface tube connection, the other end of the 4th hose are connect with one end of the needle base, the needle base lid and female needle
The other end of base connects.
7. the extracorporeal circulation pipeline according to claim 6 for venous blood dialysis, which is characterized in that described first stops
Blood folder is identical as the structure of second hemostatic clamp and including the first clamp arm, linking arm and the second clamp arm, first clamp arm
One end is connect by the linking arm with the first end of second clamp arm, and the top of second clamp arm is pressed from both sides towards described first
Arm bending simultaneously forms the bending section being oppositely arranged with the linking arm, and the other end of first clamp arm is equipped with to be extended inwardly
Guide part, the outer surface of the junction of the guide part and first clamp arm are equipped with the second card slot, second clamp arm it is another
One end is equipped with the second buckle that extends inwardly and can be connected in second card slot, and the bending section is equipped with and leads with described
To the corresponding pilot hole in portion, when described second is connected in second card slot, the guide part is located at described lead
Into hole, the linking arm is equipped with and is oppositely arranged with the pilot hole and for the through-hole that pipeline passes through, first clamp arm
Inner wall be equipped with the first clamping part towards second clamp arm side protrusion, the inner wall of second clamp arm is equipped with described in direction
The second clamping part first clamp arm side protrusion and be oppositely arranged with first clamping part.
8. the extracorporeal circulation pipeline according to claim 7 for venous blood dialysis, which is characterized in that second folder
The end of one end of nearly second buckle of arm rest is equipped with the first handle backwards to the second buckle side bending.
9. the extracorporeal circulation pipeline described in any one of -8 for venous blood dialysis, feature exist according to claim 1
In the extracorporeal circulation pipeline for venous blood dialysis further includes flush-through connection, and the flush-through connection includes the second lid
With the joint body for being in hollow cylinder shape, the both ends of the joint body are respectively defined as the first connecting pin and the second connection
End, second lid are snapped connection with first connecting pin, and the side wall of the joint body is connected with spider, described
The end of spider is concordant with the end of the first connecting pin of the joint body, and the outer wall of second lid passes through connection
The end of part and the spider is rotatably connected and second lid can turn to and connects the first of the joint body
End cap conjunction is connect, the connector, which is equipped with, to extend outwardly and the vertically disposed second handle in upper surface with second lid,
The second connection end is detachably connected with the puncture needle pipe joint.
10. the extracorporeal circulation pipeline described in any one of -8 for venous blood dialysis, feature exist according to claim 1
In the extracorporeal circulation pipeline for venous blood dialysis further includes dialysate connector lid, the dialysate connector lid and described
Analysis connector is detachably connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811602510.0A CN109498874B (en) | 2018-12-26 | 2018-12-26 | Extracorporeal circulation pipeline for venous hemodialysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811602510.0A CN109498874B (en) | 2018-12-26 | 2018-12-26 | Extracorporeal circulation pipeline for venous hemodialysis |
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| CN109498874A true CN109498874A (en) | 2019-03-22 |
| CN109498874B CN109498874B (en) | 2023-12-29 |
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| Publication number | Publication date |
|---|---|
| CN109498874B (en) | 2023-12-29 |
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