CN213048570U

CN213048570U - Blood purification device

Info

Publication number: CN213048570U
Application number: CN202020849589.3U
Authority: CN
Inventors: 龚豪; 黄丽
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2021-04-27
Anticipated expiration: 2030-05-20

Abstract

The utility model discloses a blood purification device, including filtering barrel, protection barrel and dialysis membrane, filter the barrel with the protection barrel is both ends open-ended tubular structure, just the bottom outside of filtering the barrel with the open-top sliding fit of protection barrel, the level is fixed with cyclic annular flange around the top inner wall of protection barrel. Has the advantages that: the utility model discloses a mode of installing a plurality of locking subassemblies additional after the top of the protection barrel is inserted to the filtration barrel comes detachable locking to filter the connected state of barrel and protection barrel between outer crown plate one and outer crown plate two, and the simple easy operation of split of filtration barrel and protection barrel is convenient for will filter the barrel and protect the quick split of barrel after the dialysis membrane in the cartridge filter uses a period, has made things convenient for then regularly to carry out the reverse washing clearance to the dialysis membrane, is favorable to the blood purification effect of guarantee device.

Description

Blood purification device

Technical Field

The utility model relates to a blood purifies the auxiliary assembly field, concretely relates to blood purification device.

Background

With the progress and development of hemodialysis purification technology, the application range of the hemodialysis purification technology is wider and wider, and the treatment scope relates to a plurality of fields of drug poisoning, uremia, kidney diseases, immune system diseases and the like. Along with the improvement of the living standard of people and the increase of health consciousness, the hemodialysis purification technology is widely accepted as a disease treatment mode, the usage amount is increased every year, as a medical instrument specially used for hemodialysis purification, a dialysis membrane for purifying blood is usually arranged in a blood purification device, the impurities in the blood can be blocked by the existing dialysis membrane, after the hemodialysis membrane is used for a long time, the efficiency is reduced because the impurities can not be cleaned, and the blood purification effect is directly influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a blood purification device for solving above-mentioned problem, the mode of installing a plurality of locking subassemblies additional after the top of protection barrel is inserted to the barrel through filtering comes detachable locking to filter the connected state of barrel and protection barrel between outer crown plate one and outer crown plate two, filters the simple easy operation of split of barrel and protection barrel, sees the explanation below in detail.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a blood purification device, including filtering the barrel, protecting the barrel and dialysing the membrane, filter the barrel with protecting the barrel and be both ends open-ended tube structure, just the bottom outside of filtering the barrel with protecting the top opening sliding fit of barrel, the level is fixed with cyclic annular flange around the top inner wall of protection barrel, the top face of cyclic annular flange is attached to contact and is had the sealing washer, and the top face of sealing washer with the bottom face of filtering the barrel is attached to contact, dialysing the membrane and seal and fix through the protective frame filtering the bottom inboard of barrel;

the filter cylinder is characterized in that an outer ring plate I is horizontally and fixedly extended around the outer side of the filter cylinder, a plurality of first matching holes are vertically and uniformly distributed along the circumference of the outer ring plate I, an outer ring plate II is horizontally and fixedly extended around the outer side of the protection cylinder, a plurality of second matching holes are vertically and uniformly distributed along the circumference of the outer ring plate II, the second matching holes and the first matching holes are coaxially matched, and a locking assembly used for locking the filter cylinder and the protection cylinder is inserted and fixed between the first matching holes and the second matching holes in each group of matching.

Preferably, the top end face of the filtering cylinder body is fixedly communicated with an inverted funnel-shaped liquid inlet pipe.

Preferably, the bottom end face of the protection cylinder is fixedly communicated with a funnel-shaped liquid outlet pipe.

Preferably, the sealing ring is made of medical grade silica gel.

Preferably, the dialysis membrane is a polyethylene composite membrane, the dialysis membrane is hermetically welded on the circumference of the inner side of the protective frame, and the protective frame is in interference fit with the filtering cylinder.

Preferably, the number of the first fitting hole and the second fitting hole is four.

Preferably, the locking assembly comprises a stud and a locking nut, the stud is vertically inserted into the first matching hole and the second matching hole which are compared with each other in each group, the stud is in sliding fit with the first matching hole and the second matching hole, two ends of each stud are in meshed connection with the locking nut, and washers are in clearance fit with parts of the studs between the locking nut and the first outer ring plate or the second outer ring plate.

By adopting the blood purification device, initially, the stud bolts are inserted into the matching holes I and the matching holes II which are compared with each other in each group, the locking nuts are engaged at the two ends of the stud bolts, the filtering cylinder body is inserted into the top of the protecting cylinder body in a sliding fit manner, then the locking nuts at the two ends of each stud bolt are sequentially screwed down and respectively pressed on the surfaces of the outer ring plate I and the outer ring plate II, in the process, the bottom end surface of the filtering cylinder body can be pressed on the top end surface of the sealing ring in a manner that the stud bolts are matched with the locking nuts, the sealing ring seals the bottom end surface contacted with the filtering cylinder body in a self-extrusion deformation manner, so that the liquid inlet pipe is fixedly communicated with an external blood supply pipeline, and the liquid outlet pipe is fixedly communicated with an external blood return pipeline, the blood enters the filter cylinder body through the liquid inlet pipe, flows forwards through the dialysis membrane and is filtered and purified, the filtered impurities are blocked by the dialysis membrane, the purified blood is discharged through the liquid outlet pipe and enters an external blood return pipeline, after the device is used for a period of time, the efficiency of the dialysis membrane is reduced due to accumulation of blocked impurities, and at the moment, the dialysis membrane needs to be cleaned, and the operation mode is as follows: loosening the locking nuts at the two ends of each stud in sequence until the locking nuts are unscrewed, pulling out each stud from each group of the first matching hole and the second matching hole, releasing the connection locking of the locking assembly on the filtering cylinder and the protective cylinder, taking out the filtering cylinder from the top of the protective cylinder, performing reverse washing cleaning on the dialysis membrane, inserting the bottom end of the filtering cylinder into the top of the protective cylinder in a sliding fit manner again until the bottom end surface of the filtering cylinder contacts the sealing ring again, rotatably adjusting the filtering cylinder in the process of inserting the filtering cylinder to enable each first matching hole and each second matching hole to be coaxially compared, inserting the studs into each group of the first matching hole and each second matching hole in sequence, sleeving gaskets on the two ends of the first matching hole and the second matching hole, and then screwing the locking nuts on the two ends of the first matching hole and the second matching hole, and finally, the locking nut is screwed to the surfaces of the first outer ring plate and the second outer ring plate to lock the sealing connection between the filtering cylinder and the protection cylinder, the filtering cylinder and the protection cylinder are simple and easy to operate in separation, the filtering cylinder and the protection cylinder are convenient to rapidly separate after the dialysis membrane in the filtering cylinder is used for a period of time, and then the dialysis membrane is convenient to regularly and reversely wash and clean, so that the blood purification effect of the device is favorably ensured.

Has the advantages that: the utility model discloses a mode of installing a plurality of locking subassemblies additional after the top of the protection barrel is inserted to the filtration barrel comes detachable locking to filter the connected state of barrel and protection barrel between outer crown plate one and outer crown plate two, and the simple easy operation of split of filtration barrel and protection barrel is convenient for will filter the barrel and protect the quick split of barrel after the dialysis membrane in the cartridge filter uses a period, has made things convenient for then regularly to carry out the reverse washing clearance to the dialysis membrane, is favorable to the blood purification effect of guarantee device.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a front external view of the present invention;

figure 2 is a front cross-sectional view of the present invention from figure 1;

figure 3 is a top external view of figure 1 of the present invention;

fig. 4 is a top cross-sectional view of fig. 1 according to the present invention.

The reference numerals are explained below:

1. a filter cylinder; 101. a liquid inlet pipe; 102. a first outer ring plate; 103. a first matching hole; 2. protecting the cylinder body; 201. a second outer ring plate; 202. a liquid outlet pipe; 203. a second matching hole; 204. an annular flange; 3. A locking assembly; 301. a stud; 302. locking the nut; 303. a gasket; 4. a dialysis membrane; 401. Protecting the frame; 5. and (5) sealing rings.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, the utility model provides a blood purification device, including filtering barrel 1, protection barrel 2 and dialysis membrane 4, filtering barrel 1 and protection barrel 2 are both ends open-ended tubular structure, and filter the bottom outside of barrel 1 and the open-top sliding fit of protection barrel 2, the level is fixed with cyclic annular flange 204 around the top inner wall of protection barrel 2, the attached contact of top face of cyclic annular flange 204 has sealing washer 5, and the top face of sealing washer 5 and the bottom face laminating contact of filtering barrel 1, dialysis membrane 4 seals through protecting frame 401 and fixes the bottom inboard at filtering barrel 1. Horizontal extension is fixed with outer crown plate 102 around the outside of filtering barrel 1, and a plurality of mating holes 103 have been seted up along the vertical of circumference equipartition to outer crown plate 102, horizontal extension is fixed with outer crown plate two 201 around the outside of protection barrel 2, a plurality of mating holes two 203 have been seted up along the vertical of circumference equipartition to outer crown plate two 201, and mating holes two 203 and the mutual coaxial contrast of mating holes 103, it is fixed with the locking subassembly 3 that is used for locking filtering barrel 1 and protection barrel 2 to connect to alternate between mating holes one 103 and the mating holes two 203 of every group contrast.

As the preferred scheme of this scheme, the top terminal surface of filtering barrel 1 is fixed intercommunication has the feed liquor pipe 101 of funnel shape of inversion, so set up, be convenient for ensure that blood can carry out certain buffering when the feed liquor pipe 101 gets into filtering barrel 1, avoid the blood velocity of flow too fast and influence the blood purification effect, the bottom terminal surface of protection barrel 2 is fixed intercommunication has drain pipe 202 of funnel shape to the bottom discharge through protection barrel 2 that blood can be smooth and easy.

Sealing washer 5 is medical grade silica gel material, so sets up, is convenient for ensure that sealing washer 5 has good extrusion seal effect and can not pollute blood, and dialysis membrane 4 is the polyethylene complex film, and dialysis membrane 4 seals the welding and protects the inboard circumference of frame 401, protects

frame

401 and 1 interference fit of filter cylinder body to dialysis membrane 4 self has good hemodialysis performance.

The number of the first matching holes 103 and the second matching holes 203 is four, so that a plurality of groups of locking assemblies 3 are conveniently arranged to stably lock the sealing connection between the filtering cylinder body 1 and the protecting cylinder body 2, each locking assembly 3 comprises a stud 301 and a locking nut 302, each group of matching holes 103 and the second matching holes 203 is vertically inserted with the studs 301, the stud bolts 301 are in sliding fit with the first matching holes 103 and the second matching holes 203, two end parts of each stud bolt 301 are in meshed connection with a locking nut 302, a washer 303 is in clearance fit with the part, located between the locking nut 302 and the first outer ring plate 102 or the second outer ring plate 201, of each stud bolt 301, with the arrangement, the filter cylinder body 1 and the protection cylinder body 2 can be quickly and stably locked in a sealing way by screwing all the locking nuts 302, and simultaneously, the filter cylinder body 1 and the protection cylinder body 2 are conveniently and quickly contacted in a sealing connection mode by unscrewing all the locking nuts 302.

By adopting the structure, initially, each group of the first matching holes 103 and the second matching holes 203 which are compared are respectively provided with the double-end studs 301 in an inserting way, the two ends of each double-end stud 301 are respectively engaged with the locking nuts 302, and the filtering cylinder body 1 is inserted at the top of the protecting cylinder body 2 in a sliding fit way, then the locking nuts 302 at the two ends of each double-end stud 301 are sequentially screwed down and respectively pressed on the surfaces of the first outer ring plate 102 and the second outer ring plate 201, in the process, the bottom end surface of the filtering cylinder body 1 can be pressed on the top end surface of the sealing ring 5 in a way that the double-end studs 301 are matched with the locking nuts 302, and the sealing ring 5 seals the bottom end surface contacted with the filtering cylinder body 1 in a self-extrusion deformation way, so that when in use, the liquid inlet pipe 101 is fixedly communicated with an external blood supply pipeline, and after the liquid outlet pipe 202 is fixedly communicated with the external blood return pipeline, blood enters the filtering cylinder body, the impurity that is filtered out is by dialysis membrane 4 separation, and the blood after the purification is discharged through drain pipe 202 and is got into external blood return line, and after the device used a period, dialysis membrane 4 department caused the decline of efficiency because the impurity accumulation of separation, need clear up dialysis membrane 4 this moment, and the operation mode is as follows: the locking nuts 302 at the two ends of each stud 301 are sequentially unscrewed until the studs are unscrewed, then each stud 301 is pulled out of each group of the first matching hole 103 and the second matching hole 203, at the moment, the locking component 3 releases the connection and locking of the filtering cylinder 1 and the protective cylinder 2, then the filtering cylinder 1 can be lifted out of the top of the protective cylinder 2 and the dialysis membrane 4 is reversely washed and cleaned, after the cleaning is finished, the bottom end of the filtering cylinder 1 is inserted into the top of the protective cylinder 2 in a sliding fit mode again until the bottom end surface of the filtering cylinder 1 contacts the sealing ring 5 again, meanwhile, the filtering cylinder 1 is rotationally adjusted in the process of inserting the filtering cylinder 1 to enable each first matching hole 103 and each second matching hole 203 to be coaxially compared, then the studs 301 are sequentially inserted into each group of the first matching hole 103 and the second matching hole 203, the gaskets 303 are sleeved at the two ends, and then the nuts 302 are screwed, and finally screw up lock nut 302 and come the sealing connection of locking filtration barrel 1 and protection barrel 2 to the surface of outer annular plate one 102 and outer annular plate two 201, the simple easy operation of split of filtration barrel 1 and protection barrel 2, be convenient for will filter barrel 1 and the quick split of protection barrel 2 after dialysis membrane 4 in the filtration barrel 1 uses a period of time, made things convenient for then regularly to carry out the reverse washing clearance to dialysis membrane 4, be favorable to the blood purification effect of guarantee device.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a blood purification device, includes filtering barrel, protection barrel and dialysis membrane, its characterized in that: the dialysis membrane comprises a filtration cylinder body, a protection cylinder body and a dialysis membrane, wherein the filtration cylinder body and the protection cylinder body are of cylinder body structures with openings at two ends, the outer side of the bottom of the filtration cylinder body is in sliding fit with the opening at the top of the protection cylinder body, an annular flange is horizontally fixed around the inner wall at the top of the protection cylinder body, a sealing ring is attached and contacted with the top end surface of the annular flange, the top end surface of the sealing ring is attached and contacted with the bottom end surface of the filtration cylinder body, and the dialysis membrane is sealed and fixed at the inner side;

2. A blood purification apparatus according to claim 1, wherein: the top end face of the filtering cylinder body is fixedly communicated with an inverted funnel-shaped liquid inlet pipe.

3. A blood purification apparatus according to claim 2, wherein: the bottom end face of the protection barrel is fixedly communicated with a funnel-shaped liquid outlet pipe.

4. A blood purification apparatus according to claim 2 or 3, wherein: the sealing ring is made of medical grade silica gel.

5. A blood purification apparatus according to claim 4, wherein: the dialysis membrane is a polyethylene composite membrane, the dialysis membrane is hermetically welded on the circumference of the inner side of the protective frame, and the protective frame is in interference fit with the filtering cylinder.

6. A blood purification apparatus according to claim 5, wherein: the number of the first matching holes and the second matching holes is four.

7. A blood purification apparatus according to claim 6, wherein: the locking assembly comprises a stud and a locking nut, the stud is vertically inserted into the first matching hole and the second matching hole which are compared in each group, the stud is in sliding fit with the first matching hole and the second matching hole, two ends of each stud are connected with the locking nut in a meshed mode, and a gasket is in clearance fit with the part, located between the locking nut and the first outer ring plate or between the two outer ring plates, of the stud.