CN106989983B - Negative pressure drainage device convenient for repeatedly sampling convection dialysis enrichment drainage liquid - Google Patents
Negative pressure drainage device convenient for repeatedly sampling convection dialysis enrichment drainage liquid Download PDFInfo
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- CN106989983B CN106989983B CN201710317519.6A CN201710317519A CN106989983B CN 106989983 B CN106989983 B CN 106989983B CN 201710317519 A CN201710317519 A CN 201710317519A CN 106989983 B CN106989983 B CN 106989983B
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- tube
- drainage
- enrichment
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- sampling
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
- G01N2001/1445—Overpressure, pressurisation at sampling point
- G01N2001/1463—Injector; Air-lift
Abstract
The invention relates to a negative pressure drainage device which is convenient for repeatedly sampling convection dialysis enrichment drainage liquid, wherein a pressure drainage head is connected with a shunt pipe through a connector, the shunt pipe is divided into more than one drainage pipe, and one or more drainage pipes are provided with a semi-permeable membrane which is longitudinally arranged; the semi-permeable membrane divides the drainage tube into two isolated passages, one is a shunt tube, the first joint is communicated with the drainage tube, the other is a branch tube, a liquid inlet of the branch tube is connected with a liquid outlet storage, and is close to the first joint, a liquid outlet of the branch tube is connected with a rich tube, and then is connected with an inflow collector, and is close to the shunt tube, a third joint and a fourth joint are arranged at two ends of the rich tube, and enrichment filling is arranged in the rich tube; the first joint is connected with a puncture tube, the puncture tube is connected with a second joint, the second joint is connected with a drainage bottle, an extended sampling tube is arranged on the puncture tube, and a puncture membrane is arranged at the outlet of the sampling tube. The invention reduces the possibility of sample pollution, prevents drainage blockage, improves drainage efficiency, is convenient for sampling and effectively enriches.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a negative pressure drainage device which reduces the possibility of sample pollution, prevents drainage blockage, improves drainage efficiency, is convenient to sample and effectively enriches convection dialysis enrichment drainage liquid and is convenient to repeatedly sample.
Background
The existing negative pressure drainage device often needs to directly pour out liquid from a drainage bottle for subsequent quantitative analysis, is very inconvenient and easily causes sample pollution; in addition, the serial connection of the enrichment module in the drainage tube main body can lead to unsmooth drainage liquid and even blockage, so that the drainage efficiency is low. Finally, a sampling needle is inserted into the drainage tube, and because the diameter of the drainage tube is limited, the pillow of the sampling needle has poor fixity, is difficult to puncture easily, or is punctured front and back to cause sampling failure.
What is needed is a negative pressure drainage device that reduces the potential for sample contamination, prevents drainage from clogging, improves drainage efficiency, facilitates sampling, effectively gathers, and facilitates repeated sampling of convective dialysis enrichment drainage fluid.
Disclosure of Invention
The invention aims to provide a negative pressure drainage device which reduces the possibility of sample pollution, prevents drainage blockage, improves drainage efficiency, is convenient to sample and effectively enriches the convection dialysis enrichment drainage liquid and is convenient to repeatedly sample.
Negative pressure drainage device of convenient repeated sampling convection dialysis enrichment drainage liquid includes:
the negative pressure drainage head is connected with the shunt tube through a connector, the shunt tube is divided into more than one drainage tube, and one or more drainage tubes are provided with a semi-permeable membrane which is longitudinally arranged;
the semi-permeable membrane divides the drainage tube into two isolated passages, one passage is a shunt tube, the first joint is communicated with the drainage tube, the other passage is a branch tube, a liquid inlet of the branch tube is connected with a liquid outlet storage and is close to the first joint, a liquid outlet of the branch tube is connected with a rich tube, then is connected with an inflow collector and is close to the shunt tube, and a third joint and a fourth joint are arranged at two ends of the rich tube;
the first joint is connected with a puncture tube, the puncture tube is connected with a second joint, the second joint is connected with a drainage bottle, an extended sampling tube is arranged on the puncture tube, and a puncture membrane is arranged at the outlet of the sampling tube.
The connectors are in threaded fit, or inserted clamping or tenon fit.
The enrichment filling in the enrichment pipe is single-layer or multi-layer parallel enrichment membrane or single or a plurality of continuous columnar enrichment filling.
The included angle between the sampling tube and the puncture tube is more than 0 and less than 180 degrees.
And a switch valve is arranged at one end of the sampling tube close to the puncture tube.
And a telescopic sleeve is arranged outside the sampling tube.
The drainage bottle is provided with a negative pressure device, and the liquid outlet storage or the collector is provided with a negative pressure device.
The pressure drainage head is connected with a shunt tube through a connector, the shunt tube is divided into more than one drainage tube, and one or more drainage tubes are provided with a semi-permeable membrane which is longitudinally arranged; the semi-permeable membrane divides the drainage tube into two isolated passages, one is a shunt tube, the first joint is communicated with the drainage tube, the other is a branch tube, a liquid inlet of the branch tube is connected with a liquid outlet storage, and is close to the first joint, a liquid outlet of the branch tube is connected with a rich tube, and then is connected with an inflow collector, and is close to the shunt tube, a third joint and a fourth joint are arranged at two ends of the rich tube, and enrichment filling is arranged in the rich tube; the first joint is connected with a puncture tube, the puncture tube is connected with a second joint, the second joint is connected with a drainage bottle, an extended sampling tube is arranged on the puncture tube, and a puncture membrane is arranged at the outlet of the sampling tube. The hollow pipeline with the semipermeable membrane realizes the rapid separation and enrichment of complex matrixes of drainage liquid by selecting semipermeable membranes with different apertures and reverse osmosis and combining with a subsequent enrichment module; an enrichment pipeline connected in parallel with the drainage tube main body is designed, the pipeline can be further connected with one or more modules in series to enrich related components, and meanwhile, the drainage speed and the separation efficiency are increased by combining a certain negative pressure in the enrichment pipeline; the membrane-enclosed repeated-puncture-resistant module with the detachable and certain inclination angle is designed, and the module is provided with the telescopic catheter, so that the fixed sampling work of the sampling needle at any position in the drainage tube is solved, and the external leakage pollution and accidental needle pricking of a sampling specimen are avoided. The invention reduces the possibility of sample pollution, prevents drainage blockage, improves drainage efficiency, is convenient for sampling and effectively enriches.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of a syringe according to the present invention for sampling through a sampling tube;
in the figure: 1. negative pressure drainage head, 2, connector, 3, shunt tubes, 4, semipermeable membrane, 5, branch tube, 6, puncture tube, 7, first connector, 8, sampling tube, 9, puncture membrane, 10, telescopic tube, 11, third connector, 12, liquid outlet storage, 13, rich pipe, 14, fourth connector, 15, inflow collector, 16, drainage tube, 17, second connector, 18, drainage bottle, 19, and switching valve.
Detailed Description
The invention is further described below with reference to the drawings and specific examples.
Example 1:
negative pressure drainage device of convenient repeated sampling convection dialysis enrichment drainage liquid includes: the negative pressure drainage head 1, the negative pressure drainage head 1 is connected with the shunt tube 3 through the connector 2, the shunt tube 3 is divided into more than one drainage tube 16, and one or more drainage tubes 16 are provided with a semi-permeable membrane 4 which is longitudinally arranged; the semi-permeable membrane 4 divides the drainage tube 16 into two isolated passages, one is the shunt tube 3, the first joint 7 is communicated with the drainage tube 16, the other is the branch tube 5, the liquid inlet of the branch tube 5 is connected with the liquid outlet storage 12 and is close to the first joint 7, the outflow opening of the branch tube 5 is connected with the inflow collector 15 after being connected with the rich tube 13 and is close to the shunt tube 3, the two ends of the rich tube 13 are provided with the third joint 11 and the fourth joint 14, and the inside is provided with enrichment filling; the first joint 7 is connected with the puncture tube 6, the puncture tube 6 is connected with the second joint 17, the second joint 17 is connected with the drainage bottle 18, the puncture tube 6 is provided with a stretched sampling tube 8, and the outlet of the sampling tube 8 is provided with a puncture membrane 9.
The connector 2 is in threaded fit, or inserted type clamping or tenon fit. The enrichment packing in the enrichment tube 13 is a single or multiple layers of parallel enrichment membranes or a single or multiple continuous columnar enrichment packing. The included angle between the sampling tube 8 and the puncture tube 6 is more than 0 DEG and less than 180 deg. The sampling tube 8 is provided with an on-off valve 19 at one end close to the puncture tube 6. The outside of the sampling tube 8 is provided with a telescopic tube 10. The drainage bottle 18 is provided with a negative pressure device, and the liquid outlet storage 12 or the collector 15 is provided with a negative pressure device.
The connector 2 is a connector between the negative pressure drainage head 1 and the shunt tube 3, and the connector can be in a rotary threaded connection, an insertion connection or a tenon-and-mortise connection mode; the shunt tubes 3 are enrichment pipelines, the drainage tubes 16 are of a parallel membrane type, and a plurality of enrichment pipelines can be arranged according to actual needs; the flowing direction of the enrichment liquid in the branch pipe 5 is opposite to the flowing direction of the enrichment liquid in the drainage pipe 16 where the branch pipe 5 is positioned, the rapid and efficient separation of the to-be-separated components in the drainage liquid and the complex matrix is realized through the semi-permeable membrane 5, the separated liquid and the drainage pipe 16 main body are in the lower end round and flow through the connector 7, the connector 7 is connected with the puncture pipe 6, and the puncture pipe 6 is connected with the second connector 17. Finally, the drainage liquid enters the drainage bottle 18 to finish the whole drainage, puncture sampling and component enrichment operation
The drainage liquid is drained from top to bottom, part of the drainage liquid directly flows down to the drainage bottle through the main body, part of the drainage liquid flows down through the diversion channel on the side wall, the direction of the drainage liquid is opposite to that of the dialysis liquid driven by the peristaltic pump combined with negative pressure or negative pressure, the middle interval semipermeable membrane 4 can realize the effective separation of different components in the drainage liquid and complex matrixes through selecting semipermeable membranes 4 with different apertures, the separated liquid containing the components to be enriched flows through the detachable enrichment tube 13, the enrichment work of relevant components is completed through the membranous or small columnar enrichment filler contained in the detachable enrichment tube, the module and the enrichment pipeline are connected in series through the connecting part of the third joint 11 and the fourth joint 14, different enrichment modules can be selected for series work according to requirements,
the whole reverse osmosis liquid flows out from the liquid outlet storage 12 at the leftmost side, flows in through the branch pipe 5, flows reversely with the drainage liquid through the semipermeable membrane 4, flows out through the outlet of the branch pipe 5, flows through the enrichment pipe 13, finally flows into the inflow collector 15, and simultaneously the inflow collector 15 also generates negative pressure through external connection or internal devices, continuously draws the flow of the enrichment liquid, further forms a certain pressure difference at two sides of the semipermeable membrane 4, applies outward suction force to the drainage liquid main body, and accelerates the outflow of the drainage liquid.
The two ends of the whole module are connected with the main body of the drainage tube through a first joint 7 and a second joint 17 at the joint, one or a plurality of the sampling tubes 8 can be selected from different parts of the drainage tube for series connection use, the module is provided with an outer extending part sampling tube 8 which forms a certain angle with a long shaft, the outer sleeve of the module is a telescopic sleeve 10 which can be sleeved on the injector in a telescopic way, the tail end of the telescopic sleeve is a puncture membrane 9, and meanwhile, the root of the connecting part of the telescopic sleeve and the long shaft of the module is provided with a switch valve 19 for controlling the outflow and inflow of liquid and pressure.
When the sampling needle is required to be inserted for sampling, the telescopic tube 10 stretches out along the inclination angle guiding module and passes through the puncture membrane 9 to form a space for guiding the insertion of the puncture needle, the cross section of the space can be circular, square or polygonal according to actual needs, the head end of the puncture needle is accommodated in the space, the length of the space can cover the tip of the puncture needle, a transparent or hollowed observation window can be reserved on the side surface of the space according to needs so as to observe the position of the tip of the puncture needle, when the puncture needle enters the telescopic tube 10, the needle penetrates through the puncture membrane 9 at the tail end and then enters the inclination angle part, the switching valve 19 is rotated to be opened to communicate with a pipeline for sampling operation, the puncture needle is pulled out after the sampling operation is completed, the valve is closed, the risk of damaging the hands of medical staff by misplug insertion is reduced, and meanwhile, the problem of extravasation and pollution of drainage liquid is avoided.
Adding a removable portion to a negative pressure system, comprising: an enrichment hollow negative pressure pipeline connected in parallel with the drainage pipeline main body and a puncture membrane 9 which is provided with a certain inclination angle and is sealed by a membrane and resistant to repeated puncture; the former can carry out the enrichment of relevant composition in the drainage liquid under guaranteeing that main part pipeline drainage is unobstructed, above-mentioned enrichment module can be placed in one or more series connection in parallelly connected pipeline with the drainage pipeline main part, liquid in its pipeline is through simple negative pressure or joint peristaltic drive, be reverse flow with drainage liquid in the drainage tube, realize the permeation of relevant composition in the drainage liquid and with the separation of matrix by means of semi-permeable membrane in the pipeline, the enrichment of specific composition in the final completion drainage liquid of associated enrichment module (diaphragm type or little column type) in the enrichment pipeline, negative pressure in the enrichment pipeline also accessible semi-permeable membrane acts on the drainage tube main part simultaneously, accelerate drainage speed. In addition, one or more modules with films can be connected in series on the drainage tube main body in a sealing manner to resist repeated puncture, the module solves the problem that a traditional puncture drainage sampling fixed needle is not suitable through the inclination design, simultaneously a telescopic puncture catheter is prepared, the needle penetration is convenient, the needle penetration damage of sampling personnel caused by error operation is reduced, and the module and the drainage tube are connected in series to realize flexible sampling according to needs.
The invention has the advantages that: the device is designed with a hollow pipeline with a semipermeable membrane, and realizes the rapid separation and enrichment of complex matrixes of drainage liquid by selecting semipermeable membranes with different apertures and reverse osmosis and combining with a subsequent enrichment module; an enrichment pipeline connected in parallel with the drainage tube main body is designed, the pipeline can be further connected with one or more modules in series to enrich related components, and meanwhile, the drainage speed and the separation efficiency are increased by combining a certain negative pressure in the enrichment pipeline; the membrane-enclosed repeated-puncture-resistant module with the detachable and certain inclination angle is designed, and the module is provided with the telescopic catheter, so that the fixed sampling work of the sampling needle at any position in the drainage tube is solved, and the external leakage pollution and accidental needle pricking of a sampling specimen are avoided.
The device is suitable for various negative pressure drainage pipelines, in particular to a pipeline system which needs subsequent analysis of drainage liquid. Reverse osmosis with drainage liquid is carried out through a hollow pipeline with a semipermeable membrane (with different apertures), and rapid separation and enrichment with complex matrix of the drainage liquid are realized by combining with a subsequent enrichment module; the enrichment pipeline is connected with the drainage tube main body in parallel, the pipeline can be further connected with one or more modules in series to enrich related components, and meanwhile, the drainage speed and the separation efficiency are increased by combining a certain negative pressure in the enrichment pipeline; the module is detachable and provided with a membrane sealing repeated puncture resistant module with a certain inclination angle, and the module is provided with a telescopic catheter, so that the fixed sampling work of a sampling needle at any position in a drainage tube is solved, and the external leakage pollution and accidental needle pricking of a sampling specimen are avoided.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. Negative pressure drainage device of convenient repeated sampling convection dialysis enrichment drainage liquid, its characterized in that includes:
the negative pressure drainage head (1), the negative pressure drainage head (1) is connected with the shunt tube (3) through the connector (2), the shunt tube (3) is divided into more than one drainage tube (16), and a semi-permeable membrane (4) which is longitudinally arranged is arranged on one or more drainage tubes (16);
the semi-permeable membrane (4) divides the drainage tube (16) into two isolated passages, one is a shunt tube (3), the first joint (7) is communicated with the drainage tube (16), the other is a branch tube (5), a liquid inlet of the branch tube (5) is connected with a liquid outlet storage (12) and is close to the first joint (7), an outflow opening of the branch tube (5) is connected with a rich tube (13) and then is connected with an inflow collector (15) and is close to the shunt tube (3), and a third joint (11) and a fourth joint (14) are arranged at two ends of the rich tube (13), and enrichment filling is arranged in the branch tube;
the first joint (7) is connected with the puncture tube (6), the puncture tube (6) is connected with the second joint (17), the second joint (17) is connected with the drainage bottle (18), the puncture tube (6) is provided with an extended sampling tube (8), and a puncture membrane (9) is arranged at the outlet of the sampling tube (8);
the included angle between the sampling tube (8) and the puncture tube (6) is more than 0 degrees and less than 180 degrees;
negative pressure devices are arranged on the drainage bottles (18), and negative pressure devices are arranged on the liquid outlet storage (12) or the collector (15).
2. The negative pressure drainage device for conveniently and repeatedly sampling convection dialysis enrichment drainage liquid according to claim 1, wherein the connector (2) is in threaded fit, or in plug-in fit, or in tenon fit.
3. The negative pressure drainage device for conveniently and repeatedly sampling convection dialysis enrichment drainage liquid according to claim 1, wherein the enrichment filling in the enrichment tube (13) is single-layer or multi-layer parallel enrichment membranes or single or multiple continuous columnar enrichment filling materials.
4. The negative pressure drainage device for conveniently and repeatedly sampling convection dialysis enrichment drainage liquid according to claim 1, wherein one end of the sampling tube (8) close to the puncture tube (6) is provided with a switch valve (19).
5. The negative pressure drainage device for conveniently and repeatedly sampling convection dialysis enrichment drainage liquid according to claim 1, wherein a telescopic tube (10) is arranged outside the sampling tube (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710317519.6A CN106989983B (en) | 2017-05-08 | 2017-05-08 | Negative pressure drainage device convenient for repeatedly sampling convection dialysis enrichment drainage liquid |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710317519.6A CN106989983B (en) | 2017-05-08 | 2017-05-08 | Negative pressure drainage device convenient for repeatedly sampling convection dialysis enrichment drainage liquid |
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| Publication Number | Publication Date |
|---|---|
| CN106989983A CN106989983A (en) | 2017-07-28 |
| CN106989983B true CN106989983B (en) | 2023-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710317519.6A Active CN106989983B (en) | 2017-05-08 | 2017-05-08 | Negative pressure drainage device convenient for repeatedly sampling convection dialysis enrichment drainage liquid |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000020050A1 (en) * | 1998-10-05 | 2000-04-13 | Vasca, Inc. | Methods and apparatus for performing flow-through peritoneal dialysis |
| AU2006279587A1 (en) * | 2005-08-17 | 2007-02-22 | Colorado Catheter Company, Inc. | Catheterization assembly |
| CN201135499Y (en) * | 2007-01-16 | 2008-10-22 | 张益� | Disposable puncture parcel |
| CN202086925U (en) * | 2011-03-25 | 2011-12-28 | 张华山 | Dual-functional negative-pressure drainage device |
| CN202179724U (en) * | 2011-07-22 | 2012-04-04 | 李卉 | Puncture and drainage device |
| CN203001526U (en) * | 2013-01-18 | 2013-06-19 | 荆巧玲 | Multifunctional abdominal paracentesis device |
| CN104990770A (en) * | 2015-07-17 | 2015-10-21 | 北京理工大学 | Stationary source sampling and diluting system |
| CN205163387U (en) * | 2015-11-03 | 2016-04-20 | 中国人民解放军第四军医大学 | Belly infection of incisional wound is split and is merged dressing device that courage leaks |
| CN205672285U (en) * | 2016-04-29 | 2016-11-09 | 大连医科大学附属二院 | A kind of negative pressure closed drainage device |
-
2017
- 2017-05-08 CN CN201710317519.6A patent/CN106989983B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000020050A1 (en) * | 1998-10-05 | 2000-04-13 | Vasca, Inc. | Methods and apparatus for performing flow-through peritoneal dialysis |
| AU2006279587A1 (en) * | 2005-08-17 | 2007-02-22 | Colorado Catheter Company, Inc. | Catheterization assembly |
| CN201135499Y (en) * | 2007-01-16 | 2008-10-22 | 张益� | Disposable puncture parcel |
| CN202086925U (en) * | 2011-03-25 | 2011-12-28 | 张华山 | Dual-functional negative-pressure drainage device |
| CN202179724U (en) * | 2011-07-22 | 2012-04-04 | 李卉 | Puncture and drainage device |
| CN203001526U (en) * | 2013-01-18 | 2013-06-19 | 荆巧玲 | Multifunctional abdominal paracentesis device |
| CN104990770A (en) * | 2015-07-17 | 2015-10-21 | 北京理工大学 | Stationary source sampling and diluting system |
| CN205163387U (en) * | 2015-11-03 | 2016-04-20 | 中国人民解放军第四军医大学 | Belly infection of incisional wound is split and is merged dressing device that courage leaks |
| CN205672285U (en) * | 2016-04-29 | 2016-11-09 | 大连医科大学附属二院 | A kind of negative pressure closed drainage device |
Non-Patent Citations (1)
| Title |
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| 负压封闭引流技术治疗软组织缺损的护理;秦香;;护理实践与研究(03);全文 * |
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