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CN203874191U - Hematodialysis device - Google Patents

Hematodialysis device Download PDF

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Publication number
CN203874191U
CN203874191U CN201420280946.3U CN201420280946U CN203874191U CN 203874191 U CN203874191 U CN 203874191U CN 201420280946 U CN201420280946 U CN 201420280946U CN 203874191 U CN203874191 U CN 203874191U
Authority
CN
China
Prior art keywords
dialysate
blood
housing
inlet
hemodialysis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN201420280946.3U
Other languages
Chinese (zh)
Inventor
邝强
吴艳利
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BEIJING IFMSOFT INFORMATION TECHNOLOGY Co Ltd
Original Assignee
BEIJING IFMSOFT INFORMATION TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BEIJING IFMSOFT INFORMATION TECHNOLOGY Co Ltd filed Critical BEIJING IFMSOFT INFORMATION TECHNOLOGY Co Ltd
Priority to CN201420280946.3U priority Critical patent/CN203874191U/en
Application granted granted Critical
Publication of CN203874191U publication Critical patent/CN203874191U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model provides a hematodialysis device which comprises a hematodialysis filter, an artery blood circulation catheter, a vein blood circulation catheter, a dialyzate supply bag and a dialyzate collecting bag. The hematodialysis filter comprises a shell, and the shell is provided with a hollow internal space. A plurality of spaced film wire sets formed by hollow fiber film wires are arranged in the length direction of the internal space in parallel. The film wire sets are formed by weaving the hollow fiber film wires, mounting is facilitated, the film wire sets are deliberately arranged to be spaced, and therefore the contact face of blood and dialyzate can be improved without increasing the size of the hematodialysis filter, and then dialysis efficiency is improved.

Description

Hemodialysis device
Technical Field
The utility model relates to a hemodialysis device belongs to the medical equipment field.
Background
Uremia caused by renal function disorder of human body usually requires hemodialysis treatment. Hemodialysis is the removal of waste products from blood using a hemodialysis filter.
CN102089020A discloses a hemodialysis apparatus of typical structure, which comprises a hemodialysis filter configured to allow blood and dialysate to pass therethrough, so that waste in the blood is discharged into the dialysate; a pure dialysate tank for supplying clean dialysate to the hemofilter; a dialysate collection tank for collecting dialysate passing through the hemodialysis filter; a balancer for maintaining stable control of the supply amount and the collection amount of the dialysate by comparing the clean dialysate collected from the hemodiafiltration filter with the collected dialysate; a blood pump for supplying blood of a patient to the hemodialysis filter; and a dialysate pump for supplying dialysate from the pure dialysate reservoir to the hemodialysis filter.
Wherein the hemodialysis filter includes a housing having a hollow interior and a hollow fiber-type membrane mounted within the hollow interior of the housing. A blood inlet and a blood outlet formed at the top and bottom of the housing, respectively; a dialysate inlet and a dialysate outlet are formed at the top side and the bottom side of the housing, respectively; blood enters from the blood inlet, passes inside the membrane and exits via the blood outlet; dialysate enters from the dialysate inlet, passes through the space between the membrane and the housing and exits via the dialysate outlet.
This prior art also mentions that the hemodialysis apparatus of the above-described typical structure cannot perform dialysis of a large amount of blood in a short time because the pressure drop of the blood and the dialysate is small and a sufficient pressure difference cannot be achieved. Dialysis of large volumes of blood can be achieved if the contact surface between the blood and the dialysate is larger, which requires longer hemodialysis filters. This prior art provides a solution to this technical problem without increasing the size of the hemodialysis filter. However, the present invention may also provide another simpler solution, again without increasing the hemodialysis filter size.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the present invention is to provide a hemodialysis device to reduce or avoid the aforementioned problems.
In order to solve the technical problem, the utility model provides a hemodialysis device, which comprises a hemodialysis filter, an arterial blood circulation catheter, a venous blood circulation catheter, a dialysate supply bag and a dialysate collection bag; wherein the hemodialysis filter includes a housing having a hollow interior space; a membrane yarn group consisting of a plurality of hollow fiber membrane yarns which are mutually separated is arranged in parallel along the length direction of the internal space; the top and the bottom of the shell are respectively provided with a blood inlet and a blood outlet; the blood inlet is connected with the arterial blood circulation conduit, and the blood outlet is connected with the venous blood circulation conduit; the side of the shell close to the blood inlet is provided with a dialysate outlet, and the side of the shell close to the blood outlet is provided with a dialysate inlet; the dialysate inlet is connected with the dialysate supply bag through a pipeline, and the dialysate outlet is connected with the dialysate collection bag through a pipeline.
Preferably, a blood pump is arranged on the arterial blood circulation conduit.
Preferably, a dialysate pump is arranged on a pipeline connecting the dialysate inlet and the dialysate supply bag.
Preferably, the housing is cylindrical, and the membrane wire sets are arranged in the inner space of the housing at intervals in a concentric circle shape.
The utility model discloses a marshalling into the membrane silk group of one with hollow fiber membrane silk, the installation of not only being convenient for like this, every membrane silk group is arranged into the form that separates each other by accident moreover to can improve the contact surface of blood and dislysate under the condition that need not to increase hemodialysis filter size, thereby improve dialysis efficiency.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein,
fig. 1 is a schematic diagram showing a hemodialysis apparatus according to an embodiment of the present invention;
fig. 2 shows a schematic cross-sectional view of the hemodialysis filter of fig. 1.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings. Wherein like parts are given like reference numerals.
As shown in fig. 1, a schematic structural diagram of a hemodialysis apparatus according to an embodiment of the present invention includes a hemodialysis filter 1, an arterial blood circulation conduit 2, a venous blood circulation conduit 3, a dialysate supply bag 4, and a dialysate collection bag 5.
Wherein the hemodiafiltration filter 1 comprises a housing 110, the housing 110 having a hollow inner space 10; a membrane thread group 11 composed of a plurality of hollow fiber membrane threads spaced apart from each other is arranged in parallel along the longitudinal direction of the internal space 10.
The key point of the present invention is that a plurality of membrane thread sets 11 are arranged in the hollow inner space 10 at intervals. In the prior art, only one membrane filament group 11 is arranged in the whole inner space 10, that is, a plurality of hollow fiber membrane filaments are arranged in parallel and arranged in a bundle in the inner space 10, and each hollow fiber membrane filament is pressed close to each other in a relatively close manner although not completely seamless, so that the installation is convenient, but the contact area between blood and dialysate cannot be enlarged as described in the background art. The utility model discloses in, through organizing into membrane silk group 11 of one with the hollow fiber membrane silk into, the installation of not only being convenient for like this, every membrane silk group 11 is arranged into the form that separates each other by accident moreover to can improve the contact surface of blood and dislysate under the condition that need not to increase hemodialysis filter size, thereby improve dialysis efficiency.
In addition, the top and bottom of the housing 110 have a blood inlet 12 and a blood outlet 14, respectively; the blood inlet 12 is connected with the arterial blood circulation conduit 2, and the blood outlet 14 is connected with the venous blood circulation conduit 3; the side of the housing 110 adjacent the blood inlet 12 has a dialysate outlet 18, and the side of the housing 110 adjacent the blood outlet 14 has a dialysate inlet 16; the dialysate inlet 16 is connected by a line to the dialysate supply bag 4 and the dialysate outlet 18 is connected by a line to the dialysate collection bag 5.
In addition, a blood pump 50 may be provided on the arterial blood circulation conduit 2. A dialysate pump 60 may also be provided in the line connecting the dialysate inlet 16 to the dialysate supply bag 4.
Referring to fig. 2, which shows a schematic cross-sectional view of the hemodialysis filter of fig. 1, in a preferred embodiment of the present invention shown in fig. 2, the housing 110 is cylindrical, and the membrane wire sets 11 are concentrically arranged in the inner space 10 of the housing 110 at intervals, so that the inner space 10 can be maximally utilized to increase the area of the blood flow channel and maximize the contact surface between the blood and the dialysate.
In a word, the utility model discloses a organize into the membrane silk group of one with hollow fiber membrane silk, the installation of not only being convenient for like this, every membrane silk group is arranged into the form that separates each other by accident moreover to can improve the contact surface of blood and dislysate under the condition that need not to increase hemodialysis filter size, thereby improve dialysis efficiency.
It is to be understood by those skilled in the art that while the present invention has been described in terms of several embodiments, it is not intended that each embodiment cover a separate embodiment. The description is given for clearness of understanding only, and it is to be understood that all matters in the embodiments are to be interpreted as including all technical equivalents which are encompassed by the claims.
The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes, modifications and combinations that may be made by those skilled in the art without departing from the spirit and principles of the invention should be considered within the scope of the invention.

Claims (4)

1. A hemodialysis apparatus comprising a hemodialysis filter (1), an arterial blood circulation tube (2), a venous blood circulation tube (3), a dialysate supply bag (4), a dialysate collection bag (5); characterized in that said hemodialysis filter (1) comprises a housing (110), said housing (110) having a hollow interior (10); a membrane thread group (11) consisting of a plurality of hollow fiber membrane threads which are mutually separated is arranged in parallel along the length direction of the internal space (10); the top and bottom of the housing (110) having a blood inlet (12) and a blood outlet (14), respectively; the blood inlet (12) is connected with the arterial blood circulation conduit (2), and the blood outlet (14) is connected with the venous blood circulation conduit (3); the side of the housing (110) adjacent to the blood inlet (12) has a dialysate outlet (18), and the side of the housing (110) adjacent to the blood outlet (14) has a dialysate inlet (16); the dialysate inlet (16) is connected to the dialysate supply bag (4) by a line, and the dialysate outlet (18) is connected to the dialysate collection bag (5) by a line.
2. Hemodialysis device according to claim 1, characterized in that a blood pump (50) is arranged on the arterial blood circulation conduit (2).
3. Hemodialysis device according to claim 1, characterized in that a dialysate pump (60) is provided on the line connecting the dialysate inlet (16) with the dialysate supply bag (4).
4. The hemodialysis apparatus of claim 1, wherein the housing (110) is cylindrical, and the membrane wire sets (11) are concentrically and intermittently disposed in the inner space (10) of the housing (110).
CN201420280946.3U 2014-05-29 2014-05-29 Hematodialysis device Expired - Lifetime CN203874191U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420280946.3U CN203874191U (en) 2014-05-29 2014-05-29 Hematodialysis device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420280946.3U CN203874191U (en) 2014-05-29 2014-05-29 Hematodialysis device

Publications (1)

Publication Number Publication Date
CN203874191U true CN203874191U (en) 2014-10-15

Family

ID=51674746

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420280946.3U Expired - Lifetime CN203874191U (en) 2014-05-29 2014-05-29 Hematodialysis device

Country Status (1)

Country Link
CN (1) CN203874191U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109688972A (en) * 2016-07-14 2019-04-26 奇德尼实验室公司 Biocompatibility and blood compatibility material and filter
CN109862957A (en) * 2016-10-24 2019-06-07 费森尤斯医疗护理德国有限责任公司 Method for determining the permeance property of hollow-fibre membrane
CN112691249A (en) * 2019-10-23 2021-04-23 希捷科技有限公司 Artificial kidney

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109688972A (en) * 2016-07-14 2019-04-26 奇德尼实验室公司 Biocompatibility and blood compatibility material and filter
CN109862957A (en) * 2016-10-24 2019-06-07 费森尤斯医疗护理德国有限责任公司 Method for determining the permeance property of hollow-fibre membrane
CN109862957B (en) * 2016-10-24 2022-09-06 费森尤斯医疗护理德国有限责任公司 Method for determining the permeability properties of hollow fiber membranes
CN112691249A (en) * 2019-10-23 2021-04-23 希捷科技有限公司 Artificial kidney

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CX01 Expiry of patent term

Granted publication date: 20141015

CX01 Expiry of patent term