CN105363086B - Peritoneal dialysis device - Google Patents

Peritoneal dialysis device Download PDF

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Publication number
CN105363086B
CN105363086B CN201510889176.1A CN201510889176A CN105363086B CN 105363086 B CN105363086 B CN 105363086B CN 201510889176 A CN201510889176 A CN 201510889176A CN 105363086 B CN105363086 B CN 105363086B
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Prior art keywords
waste liquid
peritoneal dialysis
pipe
valve plate
bag
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CN201510889176.1A
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Chinese (zh)
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CN105363086A (en
Inventor
郭宝才
窦绪平
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Fuzhou Dongze Medical Device Co ltd
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Zhongshan Benshan Medical Technology Co ltd
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Priority to CN201510889176.1A priority Critical patent/CN105363086B/en
Publication of CN105363086A publication Critical patent/CN105363086A/en
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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
    • A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
    • A61M1/28—Peritoneal dialysis ; Other peritoneal treatment, e.g. oxygenation
    • 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
    • A61M2202/00—Special media to be introduced, removed or treated
    • A61M2202/0021—Special media to be introduced, removed or treated removed from and reintroduced into the body, e.g. after treatment
    • 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
    • A61M2202/00—Special media to be introduced, removed or treated
    • A61M2202/04—Liquids
    • 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
    • A61M2210/00—Anatomical parts of the body
    • A61M2210/10—Trunk
    • A61M2210/1017—Peritoneal cavity

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  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Urology & Nephrology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • External Artificial Organs (AREA)

Abstract

The invention discloses a peritoneal dialysis device which comprises a peritoneal dialysis bag, a peritoneal dialysis main pipe and a waste liquid bag, wherein the peritoneal dialysis bag is connected with the peritoneal dialysis main pipe through a peritoneal dialysis branch pipe, and the waste liquid bag is connected with the peritoneal dialysis main pipe through a waste liquid pipe; the waste liquid pipe is internally provided with a convex part with a circular ring structure, the convex part is provided with a through hole for waste liquid to pass through, the waste liquid pipe is internally provided with a valve plate, the valve plate is positioned at one side of the convex part, which is close to the waste liquid bag, the valve plate is used for opening and closing the through hole of the convex part, the diameter of the valve plate is larger than that of the convex part, and the diameter of the valve plate is smaller than that of the waste liquid pipe; the edge of the valve plate is extended with a mounting part which extends into the inner wall of the waste liquid pipe, the mounting part can move along the flowing direction of the waste liquid in the inner wall of the waste liquid pipe, and the end part of the mounting part which is positioned in the inner wall of the waste liquid pipe is connected with a first spring. The invention has the beneficial effects that: the backflow of the waste liquid after the abrupt stop of the liquid supply to the waste liquid bag is prevented.

Description

Peritoneal dialysis device
Technical Field
The invention relates to the technical field of medical equipment, in particular to a peritoneal dialysis device.
Background
Peritoneal dialysis (peritoneal dialysis, PD) is a dialysis method that uses the peritoneal membrane of the human body itself as a dialysis membrane. The dialysate infused into the abdominal cavity exchanges solute and moisture with plasma components in capillaries on the other side of the peritoneal membrane, so that metabolic products and excessive moisture retained in the body are removed, and substances necessary for the body are supplemented through the dialysate. The purpose of kidney substitution or supporting treatment is achieved by continuously renewing the peritoneal dialysis solution.
The Chinese patent discloses a peritoneal dialysis device with publication number CN 203802866U, which comprises a waste liquid recovery system, wherein the waste liquid recovery system comprises a waste liquid bag, a waste liquid recovery pipe connected with the waste liquid bag and a liquid separating device connected with the waste liquid recovery system and used for distributing part of waste liquid from the waste liquid recovery system. Although the apparatus realizes recovery of waste liquid generated in the peritoneal dialysis process by the waste liquid recovery system, the apparatus has the following problems: 1) If the waste liquid in the waste liquid bag is full, if the liquid supply to the waste liquid bag is stopped suddenly, the waste liquid in the waste liquid bag can flow back into the peritoneal dialysis bag, and the returned waste liquid can further pollute the pipeline and the peritoneal dialysis bag again because the general sealing and cleaning effects in the waste liquid bag are poor, so that the health of patients is not benefited; 2) The dialysis rate cannot be adjusted, and for different individuals, some people feel that the dialysis amount per minute is large and cannot be tolerated.
Disclosure of Invention
The invention aims to provide a peritoneal dialysis device, which prevents backflow of waste liquid after suddenly stopping liquid supply to a waste liquid bag.
The invention aims at adopting the following technical scheme:
a peritoneal dialysis device comprises a peritoneal dialysis bag, a peritoneal dialysis main pipe and a waste liquid bag, wherein the peritoneal dialysis bag is connected with the peritoneal dialysis main pipe through a peritoneal dialysis branch pipe, and the waste liquid bag is connected with the peritoneal dialysis main pipe through a waste liquid pipe; the waste liquid pipe is internally provided with a convex part with a circular ring structure, the convex part is provided with a through hole for waste liquid to pass through, the waste liquid pipe is internally provided with a valve plate, the valve plate is positioned at one side of the convex part, which is close to the waste liquid bag, the valve plate is used for opening and closing the through hole of the convex part, the diameter of the valve plate is larger than that of the convex part, and the diameter of the valve plate is smaller than that of the waste liquid pipe; the edge of the valve plate is extended with a mounting part which extends into the inner wall of the waste liquid pipe, the mounting part can move along the flowing direction of the waste liquid in the inner wall of the waste liquid pipe, and the end part of the mounting part which is positioned in the inner wall of the waste liquid pipe is connected with a first spring. When the waste liquid flows into the waste liquid pipe from the peritoneal dialysis main pipe, as the valve plate is positioned at one side of the convex part, which is close to the waste liquid bag, the waste liquid impacts the valve plate, the valve plate moves towards the waste liquid bag, the valve plate is separated from the convex part, and the valve plate is opened, so that the flow of the waste liquid from the peritoneal dialysis main pipe to the waste liquid bag is realized; if there is waste liquid to flow to the main peritoneal dialysis tube and the peritoneal dialysis bag from the waste liquid, the first spring immediately pulls back the valve block, simultaneously because the waste liquid is from waste liquid bag to the valve block of protruding portion impact, the valve block is moved to the supporting force to the valve block to the protruding portion, and the valve block is hugged closely on the protruding portion, and the protruding portion is closed to the backward flow of waste liquid after having prevented stopping suddenly to give the waste liquid bag liquid.
Preferably, a regulator for regulating the opening degree of the peritoneal dialysis branch pipe is arranged on the peritoneal dialysis branch pipe; the regulator includes casing and extrusion wheel, be provided with the internal chamber on the casing, the peritoneal dialysis is divided the pipe in one side of internal chamber is placed, the another side of internal chamber is the walking space of extrusion wheel, be provided with the spout that is located the side of walking space on the inner wall of casing, the straight line that the spout is located the straight line of the part that the peritoneal dialysis is divided the pipe and is located the internal intracavity is the acute angle with the contained angle of place straight line, be provided with the mounting hole with spout bottom intercommunication in the casing, the width of mounting hole is greater than the width of spout, the center of extrusion wheel is connected with the connecting rod that is used for stretching into in the spout, the connecting rod is connected with the stopper that stretches into in the mounting hole, the stopper is spherical structure, the diameter of stopper is greater than the spout. When the peritoneal dialysis catheter is used, the rotary extrusion wheel moves in the chute, when the extrusion wheel is positioned at the top of the chute, the peritoneal dialysis catheter is not extruded by the extrusion wheel, and at the moment, the opening of the peritoneal dialysis catheter is maximum, so that the flow rate of the dialysate is fastest; when the extrusion wheel is positioned at the bottom of the chute, the distance from the extrusion wheel to the peritoneal dialysis branch pipe is shortest, the peritoneal dialysis branch pipe is extruded by the extrusion wheel, the extrusion force is maximum, the opening of the peritoneal dialysis branch pipe is zero at the moment, and dialysate does not flow. By setting the regulator, the opening degree of the peritoneal dialysis branch pipe is regulated.
Preferably, be provided with the trigger lever relative with spout middle part section on the mounting hole inner wall, be provided with the trigger chamber that is used for installing the trigger lever on the mounting hole inner wall, be connected with the second spring between trigger lever and the mounting hole inner wall, be connected with the trigger intracavity and be provided with negative pole piece and the positive pole piece relative with the trigger lever, keep apart each other between negative pole piece and the positive pole piece, the tip that is located the trigger intracavity of trigger lever is provided with the connecting piece, the connecting piece is connected positive pole piece and negative pole piece when the trigger lever stretches into trigger chamber bottom, positive pole piece, negative pole piece and connecting piece all adopt the metal material to make, the positive pole piece passes through emitting diode and connects the power, negative pole piece ground connection. When the extrusion wheel is not arranged at the middle section of the chute, the second spring is in a natural length, the extrusion wheel does not apply pressure to the trigger rod, the connecting sheet on the trigger rod does not connect the anode sheet and the cathode sheet, and the light-emitting diode is not lightened; when the extrusion wheel arrives at the middle section of the chute, the extrusion wheel extrudes the trigger rod, the second spring is lengthened, the connecting sheet is attached to the anode sheet and the cathode sheet, the connecting sheet on the trigger rod connects the anode sheet and the cathode sheet, the light-emitting diode is bright, and the prompt is applied to the middle section, so that the opening degree is generally applicable.
Due to the adoption of the technical scheme, the invention has the following advantages:
through the mounting structure that sets up the valve block, the waste liquid can only follow the peritoneal dialysis and be responsible for the flow direction waste liquid bag, has prevented to stop suddenly to give the backward flow of waste liquid after the waste liquid bag supplies liquid, has effectively avoided waste liquid backward flow to pollute hemodialysis bag and peritoneal dialysis to be responsible for.
Drawings
FIG. 1 is a schematic diagram of a peritoneal dialysis set of the present invention;
FIG. 2 is a cross-sectional view of a portion of the waste tube of FIG. 1;
FIG. 3 is a cross-sectional view of A-A of the regulator of FIG. 1;
FIG. 4 is a B-B cross-sectional view of the regulator of FIG. 1;
fig. 5 is an enlarged view at C in fig. 4.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the present invention more clear and easy to understand, the present invention is further described below with reference to the accompanying drawings and the detailed description:
as shown in fig. 1 and 2, a peritoneal dialysis apparatus comprises a peritoneal dialysis bag 1, a peritoneal dialysis main tube 2 and a waste liquid bag 3, wherein the peritoneal dialysis bag 1 is connected with the peritoneal dialysis main tube 2 through a peritoneal dialysis branch tube 4, and the waste liquid bag 3 is connected with the peritoneal dialysis main tube 2 through a waste liquid tube 5; the waste liquid pipe 5 is internally provided with a convex part 51 with a circular ring structure, the convex part 51 is provided with a through hole 52 for waste liquid to pass through, the waste liquid pipe 5 is internally provided with a valve plate 53, the valve plate 53 is positioned on one side of the convex part 51, which is close to the waste liquid bag 3, the valve plate 53 is used for opening and closing the through hole 52 of the convex part 51, the diameter of the valve plate 53 is larger than that of the convex part 51, and the diameter of the valve plate 53 is smaller than that of the waste liquid pipe 5; the edge of the valve plate 53 is extended with a mounting piece 54, the mounting piece 54 extends into the inner wall of the waste liquid pipe 5, the mounting piece 54 can move along the flowing direction of the waste liquid in the inner wall of the waste liquid pipe 5, and the end part of the mounting piece 54 positioned in the inner wall of the waste liquid pipe 5 is connected with a first spring 55.
As shown in fig. 3, 4 and 5, the peritoneal dialysis branch pipe 4 is provided with a regulator 6 for regulating the opening degree of the peritoneal dialysis branch pipe 4; the regulator 6 includes casing 61 and pinch roller 62, be provided with the internal chamber on the casing 61, peritoneal dialysis is in charge of 4 in one side of internal chamber is placed, the another side of internal chamber is the space of walking of pinch roller 62, be provided with the spout 63 that is located the space of walking on the inner wall of casing 61, the contained angle that the straight line that spout 63 is located the straight line of the part that peritoneal dialysis is in charge of 4 is acute angle, be provided with the mounting hole 64 with spout 63 bottom intercommunication in casing 61, the width of mounting hole 64 is greater than the width of spout 63, the center of pinch roller 62 is connected with the connecting rod 65 that is used for stretching into spout 63, connecting rod 65 is connected with the stopper that stretches into in the mounting hole 64, the stopper is spherical structure, the diameter of stopper is greater than spout 63.
The trigger rod 71 opposite to the middle section of the chute 63 is arranged on the inner wall of the mounting hole 64, the trigger cavity 72 for mounting the trigger rod 71 is arranged on the inner wall of the mounting hole 64, a second spring 73 is connected between the trigger rod 71 and the inner wall of the mounting hole 64, a cathode plate 75 opposite to the trigger rod 71 and an anode plate 74 are arranged in the trigger cavity 72, the cathode plate 75 and the anode plate 74 are mutually isolated, a connecting piece 76 is arranged at the end part of the trigger rod 71, which is positioned in the trigger cavity 72, and when the trigger rod 71 stretches into the bottom of the trigger cavity 72, the connecting piece 76 connects the anode plate 74 with the cathode plate 75, the anode plate 74, the cathode plate 75 and the connecting piece 76 are made of metal materials, the anode plate 74 is connected with a power supply through a light-emitting diode 7, and the cathode plate 75 is grounded.
The working principle of the invention is as follows: when the waste liquid flows into the waste liquid pipe 5 from the peritoneal dialysis main pipe 2, as the valve plate 53 is positioned on one side of the convex part 51, which is close to the waste liquid bag 3, the waste liquid impacts the valve plate 53, the valve plate 53 moves towards the waste liquid bag 3, the valve plate 53 is separated from the convex part 51, and the valve plate 53 is opened, so that the waste liquid flows from the peritoneal dialysis main pipe 2 to the waste liquid bag 3; if waste liquid is brought from the waste liquid to the peritoneal dialysis main tube 2 and the peritoneal dialysis bag 1, the first spring 55 immediately pulls the valve plate 53 back, and simultaneously, as the waste liquid impacts the valve plate 53 from the waste liquid bag 3 to the convex part 51, the convex part 51 plays a supporting role on the valve plate 53 to limit the movement of the valve plate 53, the valve plate 53 is clung to the convex part 51, and the convex part 51 is closed, so that the backflow of the waste liquid after the liquid supply to the waste liquid bag 3 is stopped suddenly is prevented.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.

Claims (1)

1. The peritoneal dialysis device is characterized by comprising a peritoneal dialysis bag, a peritoneal dialysis main pipe and a waste liquid bag, wherein the peritoneal dialysis bag is connected with the peritoneal dialysis main pipe through a peritoneal dialysis branch pipe, and the waste liquid bag is connected with the peritoneal dialysis main pipe through a waste liquid pipe;
the waste liquid pipe is internally provided with a convex part with a circular ring structure, the convex part is provided with a through hole for waste liquid to pass through, the waste liquid pipe is internally provided with a valve plate, the valve plate is positioned at one side of the convex part, which is close to the waste liquid bag, the valve plate is used for opening and closing the through hole of the convex part, the diameter of the valve plate is larger than that of the convex part, and the diameter of the valve plate is smaller than that of the waste liquid pipe;
the edge of the valve plate extends to form a mounting piece, the mounting piece extends into the inner wall of the waste liquid pipe, the mounting piece can move in the inner wall of the waste liquid pipe along the flowing direction of the waste liquid, and the end part of the mounting piece, which is positioned in the inner wall of the waste liquid pipe, is connected with a first spring;
the peritoneal dialysis branch pipe is provided with a regulator for regulating the opening of the peritoneal dialysis branch pipe;
the regulator comprises a shell and an extrusion wheel, wherein an inner cavity is arranged in the shell, one side of the inner cavity is provided with a peritoneal dialysis branch pipe, the other side of the inner cavity is a running space of the extrusion wheel, the inner wall of the shell is provided with a chute positioned beside the running space, an included angle between a straight line of the chute and a straight line of a part of the peritoneal dialysis branch pipe positioned in the inner cavity is an acute angle, a mounting hole communicated with the bottom of the chute is formed in the shell, the width of the mounting hole is larger than that of the chute, the center of the extrusion wheel is connected with a connecting rod used for extending into the chute, the connecting rod is connected with a limiting block extending into the mounting hole, the limiting block is of a spherical structure, and the diameter of the limiting block is larger than that of the chute;
be provided with the trigger lever relative with spout middle part section on the mounting hole inner wall, be provided with the trigger chamber that is used for installing the trigger lever on the mounting hole inner wall, be connected with the second spring between trigger lever and the mounting hole inner wall, be provided with negative pole piece and the positive pole piece relative with the trigger lever in the trigger chamber, keep apart each other between negative pole piece and the positive pole piece, the tip that is located the trigger chamber of trigger lever is provided with the connecting piece, the connecting piece is connected positive pole piece and negative pole piece when the trigger lever stretches into trigger chamber bottom, positive pole piece, negative pole piece and connecting piece all adopt the metal material to make, the positive pole piece passes through the emitting diode and connects the power, negative pole piece ground connection.
CN201510889176.1A 2015-12-04 2015-12-04 Peritoneal dialysis device Active CN105363086B (en)

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CN105363086B true CN105363086B (en) 2023-08-08

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111512077A (en) 2017-12-22 2020-08-07 费森尤斯医疗护理德国有限责任公司 Backflow prevention device and dialysis equipment with same

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0289361A1 (en) * 1987-05-01 1988-11-02 Product Innovation Holdings Limited Medical infusion apparatus
JPH05269202A (en) * 1992-03-26 1993-10-19 Terumo Corp Peritoneal dialyzer and dialyzate storage container for peritoneal dialysis
JPH06134031A (en) * 1992-10-23 1994-05-17 Matsuyama Iemasa Blood dialyzing and filtering device
CN2227496Y (en) * 1994-01-26 1996-05-22 张学文 Speed regulatable infusion instrument
JP2003000706A (en) * 2001-06-19 2003-01-07 Terumo Corp Peritoneal dialyzing circuit
CN2673404Y (en) * 2004-01-09 2005-01-26 成都中医药大学附属医院针灸学校 Multifunction transfusion safety alarming device
CN201211375Y (en) * 2008-07-01 2009-03-25 杨尊峰 Medical transfusion electric adjustor
CN201324401Y (en) * 2008-11-25 2009-10-14 北京双鹤药业股份有限公司 Flow capacity control device of medical transfusion/discharge system
CN101569769A (en) * 2009-05-22 2009-11-04 张亚平 Cam type infusion regulator
CN201524310U (en) * 2009-11-12 2010-07-14 王文刚 Transfusion flow regulator
CN202223637U (en) * 2011-07-25 2012-05-23 于杰 Energy-saving infusion alarm controller
CN202637575U (en) * 2012-07-03 2013-01-02 四川大学华西医院 Dialyzer flushing pipe joint
CN102872487A (en) * 2012-10-22 2013-01-16 贝恩医疗设备(广州)有限公司 Check valve for dialysis and one-way control device for dialysis
CN202875907U (en) * 2012-11-13 2013-04-17 王俊霞 Peritoneal dialysis connection device
CN204193167U (en) * 2014-10-28 2015-03-11 肖钦伟 Rend dialysis peritoneal dialysis formula therapy equipment
CN104689398A (en) * 2015-03-05 2015-06-10 昆山韦睿医疗科技有限公司 Peritoneal dialysis system with multiple dialysate bags and control connector
CN205215827U (en) * 2015-12-04 2016-05-11 重庆本善医疗设备有限公司 Peritoneal dialysis device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0289361A1 (en) * 1987-05-01 1988-11-02 Product Innovation Holdings Limited Medical infusion apparatus
JPH05269202A (en) * 1992-03-26 1993-10-19 Terumo Corp Peritoneal dialyzer and dialyzate storage container for peritoneal dialysis
JPH06134031A (en) * 1992-10-23 1994-05-17 Matsuyama Iemasa Blood dialyzing and filtering device
CN2227496Y (en) * 1994-01-26 1996-05-22 张学文 Speed regulatable infusion instrument
JP2003000706A (en) * 2001-06-19 2003-01-07 Terumo Corp Peritoneal dialyzing circuit
CN2673404Y (en) * 2004-01-09 2005-01-26 成都中医药大学附属医院针灸学校 Multifunction transfusion safety alarming device
CN201211375Y (en) * 2008-07-01 2009-03-25 杨尊峰 Medical transfusion electric adjustor
CN201324401Y (en) * 2008-11-25 2009-10-14 北京双鹤药业股份有限公司 Flow capacity control device of medical transfusion/discharge system
CN101569769A (en) * 2009-05-22 2009-11-04 张亚平 Cam type infusion regulator
CN201524310U (en) * 2009-11-12 2010-07-14 王文刚 Transfusion flow regulator
CN202223637U (en) * 2011-07-25 2012-05-23 于杰 Energy-saving infusion alarm controller
CN202637575U (en) * 2012-07-03 2013-01-02 四川大学华西医院 Dialyzer flushing pipe joint
CN102872487A (en) * 2012-10-22 2013-01-16 贝恩医疗设备(广州)有限公司 Check valve for dialysis and one-way control device for dialysis
CN202875907U (en) * 2012-11-13 2013-04-17 王俊霞 Peritoneal dialysis connection device
CN204193167U (en) * 2014-10-28 2015-03-11 肖钦伟 Rend dialysis peritoneal dialysis formula therapy equipment
CN104689398A (en) * 2015-03-05 2015-06-10 昆山韦睿医疗科技有限公司 Peritoneal dialysis system with multiple dialysate bags and control connector
CN205215827U (en) * 2015-12-04 2016-05-11 重庆本善医疗设备有限公司 Peritoneal dialysis device

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