CN208641390U - A kind of dialysis tube built-in hemodialysis system - Google Patents
A kind of dialysis tube built-in hemodialysis system Download PDFInfo
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- CN208641390U CN208641390U CN201721511049.9U CN201721511049U CN208641390U CN 208641390 U CN208641390 U CN 208641390U CN 201721511049 U CN201721511049 U CN 201721511049U CN 208641390 U CN208641390 U CN 208641390U
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- dialysis
- tube
- inlet
- inner tube
- hemodialysis system
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Abstract
The utility model discloses a kind of dialysis tube built-in hemodialysis system, is related to field of medical device.The dialysis tube built-in hemodialysis system of the utility model includes sequentially connected dialysis fluid container, dialysis tubing, peristaltic pump and waste liquid cylinder；Dialysis tubing includes dialysis outer pipe, dialysis inner tube and dialysis membrane, and dialysis outer pipe is sheathed between dialysis inner tube periphery and dialysis inner tube there are gap, and dialysis membrane is wrapped in dialysis outer wall of inner tube；Inner tube of dialysing is U-shaped or V-type, opening are respectively inlet and liquid outlet；Dialysis fluid container is connected to inlet by inlet tube, and peristaltic pump is connected to liquid outlet by outlet tube；It further include interconnecting piece, inlet and liquid outlet are each passed through interconnecting piece, and interconnecting piece is provided with regulating valve to open or close inlet and/or liquid outlet and adjust flow velocity.Dialysis tubing is placed in human body artery it is not necessary that blood is extracted out external progress hemodialysis, and on human blood-pressure without influence, safety economy wound is small；Indwelling is used for multiple times in the blood vessel, persistently carries out hemodialysis.
Description
Technical field
The utility model relates to field of medical device, especially a kind of dialysis tube built-in hemodialysis system.
Background technique
Haemodialysis is the principle flowed using solute from a highly concentrated side to the low side of concentration, by blood and dialysis
Both solution of liquid introduce the dialyzer with hollowfibre semi-permeable membrance simultaneously, and blood is allowed to be located at the one of hollowfibre semi-permeable membrance
Side, dialyzate are located at the other side of hollowfibre semi-permeable membrance, make the solution of film two sides by disperse and osmosis, to remove people
In in body blood, small molecule toxins, meanwhile, the electrolyte in blood can also reach balance by osmosis, to reach
To the purpose for realizing blood purification.
Haemodialysis is also treatment edema disease, acute and chronic Delayed graft function (uremia) and acute drugs poisoning and agriculture
The common method of medicine poisoning.China has the up to ten million Chronic Renal Failure Patients to need to remain raw with conventional hemodialysis every year at present
Life, and have the tendency that increasing year by year.
Haemodialysis equipment in the prior art, it usually needs the blood of patient is led in vitro, utilizes dialysis in outside
Defeated time patient's body again after device dialysis.Journey of correcting one's mistakes has the problem of following several respects: (1) blood is in vitro, is likely to result in trouble
Blood volume is drastically reduced or is increased in person's body, and unstable blood pressure is caused to even result in death；(2) extracorporal dialysis process is typically only capable to hold
Continue several hours, can not continue, be for a long time, smoothly patient's progress haemodialysis；(3) extracorporal dialysis instrument is huge, it is difficult to transport
It is defeated, it needs that patient is specially delivered to dialysate chamber, or huge extracorporal dialysis machine is transported to patient bedside, it is difficult to increase treatment
Degree；(4) instrument price is expensive, reaches hundreds of thousands of or even millions of.
Utility model content
The goal of the invention of the utility model is: in view of the above problems, providing a kind of dialysis tube built-in blood
The dialysis tubing partial volume of dialysis system, the system is small, is placed directly in human body artery and carries out haemodialysis, it is not necessary that blood is taken out
Hemodialysis is carried out through machine again in vitro out, thus on human blood-pressure without influence, safety more more economical than external hemodialysis and wound is small；Its
It can be used for multiple times in the blood vessel with indwelling, be continuously patient and carry out haemodialysis.
The technical solution adopted in the utility model is as follows:
A kind of dialysis tube built-in hemodialysis system comprising sequentially connected dialysis fluid container, dialysis tubing, peristaltic pump
With waste liquid cylinder；The dialysis tubing includes that dialysis outer pipe, dialysis inner tube and dialysis membrane, the dialysis outer pipe are sheathed in the dialysis
Pipe periphery and dialysis inner tube between there are gap, the dialysis membrane wraps and the dialysis outer wall of inner tube；The dialysis inner tube
U-shaped or V-structure, opening are respectively inlet and liquid outlet；The dialysis fluid container is connected to described by inlet tube
Inlet, the peristaltic pump are connected to the liquid outlet by outlet tube；It further includes interconnecting piece, inlet and liquid outlet difference
Across interconnecting piece, interconnecting piece is provided with regulating valve to open or close the inlet and/or liquid outlet and adjust flow velocity.
The dialysis principle of endovascular formula hemodialysis system provided by the utility model are as follows: patient is being carried out to dialyse it
Before, puncture is first passed through, with seal wire or sheath by femoral artery in dialysis tubing merging human body or radial artery, blood is led to by dialysis outer pipe
Cross, with inlet tube connect dialysis inner tube inlet and dialysis fluid container, with outlet tube connect dialysis inner tube liquid outlet with it is compacted
Dynamic pump opens peristaltic pump, and the middle dialyzate in dialysis fluid container enters the blood in dialysis inner tube and dialysis outer pipe by inlet tube
Liquid is dialysed through dialysis membrane, and the excessive moisture and small molecule toxins in blood are sustainable to be infiltrated through in dialyzate, leaves blood, and with
Dialyzate through liquid outlet through outlet tube outflow in vitro enter waste liquid cylinder, achieve the purpose that dialysis.
In use, interconnecting piece is in vitro, the junction and outlet tube of inlet tube and inlet and the junction of liquid outlet
It is arranged at interconnecting piece.Meanwhile regulating valve is used to adjust the flow velocity of dialyzate, dialysis speed is adjusted, to improve the tolerance of patient
Property.When needing to stop dialysis, it is only necessary to close regulating valve, pull out inlet tube and outlet tube, dialysis tubing just can be with outside
Liquid in-out device disconnects, tube portion of dialysing, can be according to the needs of patient, and or so indwelling fortnight, on the one hand real in vivo
Now continuous dialysis, on the other hand avoids puncturing the injury caused by patient repeatedly.
A kind of dialysis tube built-in hemodialysis system of the utility model, the regulating valve include feed liquor regulating valve and go out
Liquid regulating valve；Feed liquor regulating valve and/or out liquid regulating valve are respectively arranged at the top or bottom of interconnecting piece.
A kind of dialysis tube built-in hemodialysis system of the utility model, the feed liquor regulating valve includes groove body and rolling
Wheel；The idler wheel is set in the groove body；The top droop of the groove body is arranged, and two sidewalls are provided with idler wheel rolling guide,
Flexible leather strap is arranged in bottom；The inlet is set to the lower section in the middle part of the elastic leather strap.
By adopting the above-described technical solution, regulating valve can be adjusted the flow of inlet and/or liquid outlet, also
Inlet and/or liquid outlet can be closed to stop dialysing.The adjusting of regulating valve is by adjusting pair of rollers inlet and/or out liquid
The squish area of mouth is realized.The elastic leather strap being arranged between idler wheel and inlet and/or liquid outlet has buffer function, avoids rolling
Wheel destroys inlet and/or liquid outlet.
A kind of dialysis tube built-in hemodialysis system of the utility model, the dialysis inner tube spiral setting.
By adopting the above-described technical solution, the dialysis inner tube of spiral setting can effectively increase dialysis area, improve saturating
Analyse efficiency.
A kind of dialysis tube built-in hemodialysis system of the utility model, sets between the interconnecting piece and the dialysis tubing
It is equipped with fixed part, the fixed part includes fixing seat and a pair of fin being symmetricly set in fixing seat.
Fin due to using above-mentioned technical side, fixed part can effectively increase area for fixing, be easy device
It is fixed, avoid dialysis tubing in the harm that intra-arterial is mobile or slides.
A kind of dialysis tube built-in hemodialysis system of the utility model, the dialysis outer pipe are engraved structure.
By adopting the above-described technical solution, the engraved structure of dialysis outer pipe, easily facilitates blood and enters in dialysis outer pipe
Dialysis is carried out with the dialyzate in dialysis inner tube to exchange.
A kind of dialysis tube built-in hemodialysis system of the utility model, the dialysis fluid container are provided with heat preservation dress
It sets.
By adopting the above-described technical solution, passing through the normal temperature demand of blood when attemperator guarantee patients with hemodialysis.
A kind of dialysis tube built-in hemodialysis system of the utility model, the one end of the dialysis outer pipe far from inlet
It is provided with rigid plastics head.
By adopting the above-described technical solution, dialysis tubing insertion artery is being to play a part of to break through by rigid plastics head, prevent
Only tube head is excessively soft, inserts not into blood vessel.Rigid plastics can such as be gathered in oneself using the high material of biocompatibility in the prior art
Ester and Terlux.
The diameter of a kind of dialysis tube built-in hemodialysis system of the utility model, the dialysis inner tube is 0.5-2mm,
Pipe range is 200-300mm.
A kind of dialysis tube built-in hemodialysis system of the utility model, the diameter of the dialysis outer pipe is 3-5mm, long
For 150-300mm.
In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are:
Its dialysis tubing of dialysis tube built-in hemodialysis system provided by the utility model is placed in vivo, is divided into dialysis inner tube
And dialysis outer pipe, dialysis membrane are wrapped and are dialysed between the dialyzate realized in inner tube in the blood in dialysis inner tube and dialysis inner tube
Dialysis；In vivo or so indwelling fortnight, lasting haemodialysis can be provided for patient according to the needs of patient
Function；Outer body includes interconnecting piece, dialysis fluid container, peristaltic pump and waste liquid cylinder；On the one hand interconnecting piece realizes the dialysis apparatus
With the combination of external device (ED), on the other hand regulating valve is set to adjust feed liquor and goes out the speed of liquid, and terminates dialysis.Dialyzate holds
Device and waste liquid cylinder are respectively used to contain fresh and discarded dialyzate, power of the peristaltic pump except offer dialyzate flowing.This it
Outside, it is additionally provided with fixed part dialysis tubing is fixed, avoids dialysis tubing mobile or slides.Using provided by the utility model
When analysing the progress haemodialysis of tube built-in hemodialysis system, dialysis tubing, which is placed directly in human body artery, carries out haemodialysis, nothing
Blood need to be extracted out and carry out hemodialysis through machine again in vitro, thus on human blood-pressure without influence, it is more more economical than external hemodialysis and saturating
Analyse pipe indwelling for a period of time, can avoid carrying out invasive injury to patient repeatedly in human body.
Detailed description of the invention
The utility model will illustrate by example and with reference to the appended drawing, in which:
Fig. 1 is the connection relationship diagram of dialysis tube built-in hemodialysis system provided by the utility model；
Fig. 2 is the schematic diagram that dialysis tubing, interconnecting piece and fixed part provided by the utility model cooperate；
Fig. 3 is the schematic diagram of dialysis tubing；
Fig. 4 is the diagrammatic cross-section of liquid feed valve.
In figure, 1 is dialysis tubing, and 11 be dialysis outer pipe, and 12 dialysis inner tubes, 121 be inlet, and 122 be liquid outlet, and 2 be company
Socket part, 21 be groove body, and 22 be idler wheel, and 23 be elastic leather strap, and 3 be fixed part, and 31 be fixing seat, and 32 be fin, and 4 hold for dialyzate
Device, 41 be inlet tube, and 42 be outlet tube, and 5 be peristaltic pump, and 6 be waste liquid cylinder.
Specific embodiment
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
Any feature disclosed in this specification (including any accessory claim, abstract), unless specifically stated,
It is replaced by other equivalent or with similar purpose alternative features.That is, unless specifically stated, each feature is a series of
An example in equivalent or similar characteristics.
Such as Fig. 1, the present embodiment provides a kind of dialysis tube built-in hemodialysis systems comprising dialysis tubing 1 is connected to
Analyse the interconnecting piece 2 of pipe 1, the fixed part 3 being set between dialysis tubing 1 and interconnecting piece 2, dialysis fluid container 4, peristaltic pump 5 and useless
Fluid cylinder 6.Dialysis fluid container 4 is connected to interconnecting piece by inlet tube 41, and peristaltic pump 5 is connected to interconnecting piece, waste liquid by outlet tube
Cylinder 6 is connected to peristaltic pump 5 by conduit.
Dialysis tubing 1 includes dialysis outer pipe 11, dialysis inner tube 12 and dialysis membrane.Dialysis outer pipe 11 is sheathed on dialysis inner tube 12
Periphery, there are gaps between dialysis outer pipe 11 and dialysis inner tube 12 in order to blood circulation, and 11 hollow out of dialysis outer pipe is arranged, so as to
In the gap that blood enters dialysis outer pipe 11 between inner tube 12 of dialysing.Dialysis membrane wrap with dialysis inner tube 12 outer wall on, can
The inner tube 12 that thinks to dialyse plays a part of to support dialysis membrane or for dialysis membrane moulding.Circulate dialyzate in inner tube 12 of dialysing, dialysis tubing
Two openings of 12 U-shaped or V-structures, i.e. dialysis inner tube 12 are located at the same end of dialysis outer pipe 11, and one of opening is
Inlet 121, another opening are liquid outlet 122.
Interconnecting piece 2 is connected to dialysis tubing 1, and dialysis inner tube 12 runs through interconnecting piece 1, and inlet 121 and liquid outlet 122 distinguish position
In interconnecting piece, convenient for dialysis tubing 1 and external connection.Interconnecting piece 2 is provided with feed liquor regulating valve and out liquid regulating valve, with open or
Inlet 121 and/or liquid outlet 122 are closed, or adjusts feed liquor and/or out liquid speed degree.Regulating valve may be provided at interconnecting piece
Top or bottom.In the present embodiment, feed liquor regulating valve and out liquid regulating valve are symmetricly set on the top of interconnecting piece, feed liquor regulating valve
Including groove body 21 and idler wheel 22, idler wheel 22 is set in groove body 21, the top droop setting of groove body 21, one end high and another end low, and two
Side wall setting is provided with the guide rail of the rolling of idler wheel 22, and flexible leather strap 23 is arranged below idler wheel 22, and inlet 121 is located at elastic skin
23 lower section of item.Idler wheel 22 from higher one section of groove body 21 to when lower one section of rolling, is squeezing elastic leather strap 23 on guide rail
The inlet 121 of lower section, in different location, squish area is different, to realize the fluid velocity for adjusting inlet 121 or open
It closes.Liquid regulating valve and feed liquor regulating valve are symmetrical arranged out, and structure is identical, and repeats no more herein.
In the present embodiment, the diameter of dialysis outer pipe 11 is 3-5mm, pipe range 150-300mm.Dialysis inner tube 12 diameter be
0.5-2mm, pipe range 200-300mm.
Fixed part 3 is set between dialysis tubing 1 and interconnecting piece 2, for fixing dialysis tubing 1.Fixed part 3 includes fixing seat 31
It is symmetricly set on the fin 32 in fixing seat 31 with a pair, for fin 32 for increasing fixed-area, fin 32 can be relative to fixation
Seat 31 rotates, and easily facilitates fixation.
Dialysis fluid container 4 is for containing fresh dialyzate.Dialysis fluid container 4 is connected to by inlet tube 41 is located at connection
The inlet 121 in portion.The normal temperature demand of blood when dialysis fluid container Shanghai is provided with attemperator to ensure patients with hemodialysis.
Peristaltic pump 5 provides power for the flowing of dialyzate, and peristaltic pump 5 is connected to the liquid outlet 122 positioned at interconnecting piece by outlet tube 42.
Waste liquid cylinder 6 is connected to peristaltic pump 5 by conduit to contain the dialysis waste liquid after dialysis.
It is the prior art that dialysis tubing 1, which is placed in the method in human body artery, in the utility model, and temperature regulating device is also existing
Technology is no longer described in detail herein.
It is provided by the utility model dialysis tube built-in hemodialysis system use process is as follows:
Before dialysing to patient, puncture is first passed through, dialysis tubing 1 is placed in femoral artery in human body with seal wire or sheath
It is then with adhesive tape that fixed part 3 is fixed on a patient body with one or in radial artery, dialysis inner tube 12 is connected with inlet tube 41
Inlet 121 and dialysis fluid container 1, the liquid outlet 122 and peristaltic pump 5 of dialysis inner tube 12 are connected with outlet tube 42, and use conduit
5 waste liquid cylinder 6 of peristaltic pump is connected, peristaltic pump is then turned on, the dialyzate in dialysis fluid container 1 enters dialysis by inlet tube 41
Inner tube 12 is dialysed with the blood in dialysis outer pipe 11 through dialysis membrane, the sustainable infiltration of excessive moisture and small molecule toxins in blood
Enter in dialyzate, leaves blood, and enter waste liquid cylinder in vitro as dialyzate is flowed out through liquid outlet 122 through outlet tube 42, reach
The purpose of dialysis.During dialysis, the normal temperature demand of blood when can open attemperator to ensure patients with hemodialysis；It can lead to
It overregulates feed liquor regulating valve and/or liquid adjusts the flow velocity of valve regulation dialyzate to adjust dialysis rate out.After dialysis, first
Feed liquor regulating valve and out liquid regulating valve are closed, inlet 121 and inlet tube 41 and liquid outlet 122 and outlet tube 42 are then turned off
Connection.Dialysis tubing 1 can be according to the needs of patient, or so indwelling fortnight in vivo.
The utility model is not limited to specific embodiment above-mentioned.The utility model expands to any in this specification
The new feature of middle disclosure or any new combination, and disclose any new method or process the step of or any new group
It closes.
Claims (10)
1. a kind of dialysis tube built-in hemodialysis system, which is characterized in that it includes sequentially connected dialysis fluid container, dialysis
Pipe, peristaltic pump and waste liquid cylinder；The dialysis tubing includes that dialysis outer pipe, dialysis inner tube and dialysis membrane, the dialysis outer pipe are sheathed on
The dialysis inner tube periphery and dialysis inner tube between there are gap, the dialysis membrane wraps and the dialysis outer wall of inner tube；Institute
It is U-shaped or V-structure, opening are respectively inlet and liquid outlet to state dialysis inner tube；The dialysis fluid container passes through inlet tube
It is connected to the inlet, the peristaltic pump is connected to the liquid outlet by outlet tube；It further includes interconnecting piece, inlet and
Liquid outlet is each passed through interconnecting piece, interconnecting piece be provided with regulating valve with open or close the inlet and/or liquid outlet and
Adjust flow velocity.
2. dialysis tube built-in hemodialysis system according to claim 1, which is characterized in that the regulating valve include into
Liquid regulating valve and out liquid regulating valve；Feed liquor regulating valve and/or out liquid regulating valve are respectively arranged at the top or bottom of interconnecting piece.
3. dialysis tube built-in hemodialysis system according to claim 2, which is characterized in that the feed liquor regulating valve packet
Include groove body and idler wheel；The idler wheel is set in the groove body；The top droop of the groove body is arranged, and two sidewalls are provided with idler wheel
Flexible leather strap is arranged in rolling guide, bottom；The inlet is set to the lower section in the middle part of the elastic leather strap.
4. dialysis tube built-in hemodialysis system according to claim 1, which is characterized in that the dialysis inner tube spiral
Setting.
5. dialysis tube built-in hemodialysis system according to claim 1, which is characterized in that the interconnecting piece with it is described
Fixed part is provided between dialysis tubing, the fixed part includes fixing seat and a pair of fin being symmetricly set in fixing seat.
6. dialysis tube built-in hemodialysis system according to claim 1, which is characterized in that the dialysis outer pipe is to engrave
Hollow structure.
7. dialysis tube built-in hemodialysis system according to claim 1, which is characterized in that the dialysis fluid container is set
It is equipped with attemperator.
8. dialysis tube built-in hemodialysis system according to claim 1, which is characterized in that the dialysis outer pipe is separate
One end of inlet is provided with rigid plastics head.
9. dialysis tube built-in hemodialysis system according to claim 1, which is characterized in that the straight of inner tube of dialysing
Diameter is 0.5-2mm, pipe range 200-300mm.
10. dialysis tube built-in hemodialysis system according to claim 1, which is characterized in that the dialysis outer pipe
Diameter is 3-5mm, a length of 150-300mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721511049.9U CN208641390U (en) | 2017-11-14 | 2017-11-14 | A kind of dialysis tube built-in hemodialysis system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721511049.9U CN208641390U (en) | 2017-11-14 | 2017-11-14 | A kind of dialysis tube built-in hemodialysis system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208641390U true CN208641390U (en) | 2019-03-26 |
Family
ID=65770169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721511049.9U Expired - Fee Related CN208641390U (en) | 2017-11-14 | 2017-11-14 | A kind of dialysis tube built-in hemodialysis system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208641390U (en) |
-
2017
- 2017-11-14 CN CN201721511049.9U patent/CN208641390U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190326 Termination date: 20201114 |