CN210612607U

CN210612607U - Blood perfusion device

Info

Publication number: CN210612607U
Application number: CN201920769380.3U
Authority: CN
Inventors: 钟春发
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-24
Filing date: 2019-05-24
Publication date: 2020-05-26
Anticipated expiration: 2029-05-24

Abstract

The utility model belongs to the technical field of blood purification, and discloses a blood perfusion device, which comprises a cylinder body, wherein an adsorbent is arranged in the cylinder body, an upper end cover and a lower end cover are respectively arranged at two ends of the cylinder body, and a liquid inlet and a liquid outlet are respectively arranged on the upper end cover and the lower end cover; first ring groove has been seted up to the one end that cylinder and upper end cover are connected, and the adaptation has a filtering component in the first ring groove, is equipped with the connecting pipe of reel formula structure between filtering component and the upper end cover, and connecting pipe and inlet intercommunication, and evenly be equipped with a plurality of outage on the connecting pipe. The utility model discloses a with blood dispersion in the cylinder, be in adsorbent in the middle of the cylinder and adsorbent homoenergetic all around and blood contact, its simple structure, the adsorption efficiency of adsorbent is high, can effectually get rid of the toxic substance in the blood.

Description

Blood perfusion device

Technical Field

The utility model belongs to the technical field of blood purifies, concretely relates to blood perfusion ware.

Background

Blood perfusion is an important component of blood purification therapy, and is a blood purification technology for introducing blood of a patient into an perfusion device filled with a solid adsorbent and removing exogenous or endogenous toxins, medicines or metabolic waste products which cannot be removed by dialysis in the blood through adsorption. The blood perfusion can be used for treating drug poisoning, uremia, kidney diseases and immune system diseases, can be used for treating various chronic, intractable and difficult diseases, can be used together with hemodialysis for removing macromolecular toxin in a chronic renal failure maintenance dialysis patient, and has a good treatment effect. The apparatus used in the general blood perfusion method is a blood perfusion device which is mainly applied to molecular toxin adsorption in acute and chronic drug poisoning and uremia and adsorption of liver diseases and pathogenic factors in the immune field, and the main application modes at present comprise a separate blood perfusion mode, a blood dialysis combined blood perfusion mode and a plasma separation adsorption mode.

When the traditional blood perfusion device performs blood perfusion operation, blood enters the column body from the liquid inlet, flows through the adsorbent in the column body and then flows out from the liquid outlet, and the blood has a higher flow velocity when entering the column body, so that the blood is preferentially and fully contacted with the adsorbent in the middle of the column body, and the concentration of toxic substances in the blood contacted with the adsorbent in the middle of the column body is high, so that adsorption balance can be quickly achieved; the adsorbent around the column body mainly contacts the blood adsorbed by the middle adsorbent, and the concentration of the toxic substances is low, so that the adsorption balance is slow. Therefore, the adsorbent in the middle of the column body can quickly reach adsorption balance, the adsorbent around the column body is difficult to reach adsorption balance, the adsorbent of the traditional blood perfusion device cannot be fully utilized, and blood cannot be fully contacted with the adsorbent in the column body, so that the adsorption efficiency of the adsorbent is reduced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model aims to provide a blood perfusion device, its simple structure, adsorption efficiency is high, can effectually get rid of the toxic substance in the blood.

The utility model discloses the technical scheme who adopts does: a blood perfusion device comprises a cylinder, wherein an adsorbent is arranged in the cylinder, an upper end cover and a lower end cover are respectively arranged at two ends of the cylinder, and a liquid inlet and a liquid outlet are respectively arranged on the upper end cover and the lower end cover; the cylinder with the one end that the upper end cover is connected is seted up first ring groove, the adaptation has filtering component in the first ring groove, be equipped with the connecting pipe of reel formula structure between filtering component and the upper end cover, the connecting pipe with the inlet intercommunication, and evenly be equipped with a plurality of outage on the connecting pipe.

As a preferred mode, the filtering component comprises a fixing ring, a flow dividing piece is arranged in the fixing ring, and a filtering net piece is arranged below the flow dividing piece.

Preferably, the flow dividing member includes a plurality of concentrically arranged annular flow deflectors, the plurality of annular flow deflectors are connected with a support bar, and the support bar is connected with the fixing ring.

Preferably, the annular guide vane is obliquely arranged in the fixing ring.

Preferably, a fixing member for fixing the connection pipe is provided at an inner side of the upper cap.

Preferably, the fixing piece is a U-shaped elastic buckle.

Preferably, annular sealing rings are arranged between the column body and the upper end cover and between the column body and the lower end cover.

As a preferable mode, a second annular clamping groove is formed in one end, connected with the lower end cover, of the column body, and a filter screen is matched in the second annular clamping groove.

The utility model has the advantages that:

1. the utility model provides a blood perfusion ware, first ring groove has been seted up to the one end that cylinder and upper end cover are connected, and the adaptation has a filter assembly in the first ring groove, is equipped with the connecting pipe of reel formula structure between filter assembly and the upper end cover, and connecting pipe and inlet intercommunication, and evenly be equipped with a plurality of outage on the connecting pipe. Blood gets into the connecting pipe from the inlet, flows from the outage on the connecting pipe again, consequently from the blood dispersion that the outage flows out in the cylinder to can cover the inner space of cylinder, be in adsorbent in the middle of the cylinder and adsorbent homoenergetic all around and blood contact, adsorbent and adsorbent homoenergetic all around in the middle of guaranteeing can obtain make full use of, the utility model discloses simple structure, adsorbent's adsorption efficiency is high, can effectually get rid of the toxic substance in the blood.

2. The utility model discloses a filtering component is equipped with the reposition of redundant personnel piece including solid fixed ring in the solid fixed ring, and reposition of redundant personnel piece below is equipped with filter screen. The shunt can shunt the blood that the outage was discharged, has further dispersion effect to blood. The filter mesh can not only filter impurities in blood, but also break a small amount of bubbles generated by the blood on the shunt member, so that the blood passing through the filter mesh does not contain bubbles, and the safety of blood perfusion is improved.

3. The utility model discloses a reposition of redundant personnel piece includes a plurality of concentric annular water conservancy diversion pieces of arranging, and a plurality of annular water conservancy diversion pieces are connected with the support bar, and the support bar is connected with solid fixed ring, and annular water conservancy diversion piece slope sets up in solid fixed ring. Blood flowing out of the liquid discharge hole flows onto the annular flow guide sheet, the annular flow guide sheet has a flow guide effect, and the blood flows along the annular flow guide sheet, so that the blood is dispersed into the column body, and the middle adsorbent and the peripheral adsorbents in the column body can be fully contacted with the blood.

4. The utility model discloses an upper end cover inboard is equipped with the mounting that is used for the fixed connection pipe, and the mounting is the elasticity buckle of U-shaped. The connecting pipe passes through the inboard of elasticity buckle installation at the upper end cover, and the installation and the dismantlement of connecting pipe are more convenient.

5. The utility model discloses a second annular clamping groove has been seted up to the cylinder one end of being connected with the lower end cover, and the adaptation has the filter screen in the second annular clamping groove. The filter screen can filter the adsorbent mixed in the blood, prevent that the adsorbent that drops in the blood perfusion ware from getting into human blood vessel and causing the injury to the human body.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a top view of the filter assembly of the present invention;

FIG. 3 is a schematic structural diagram of a connecting tube according to the present invention;

in the figure: 1-a column; 2-an adsorbent; 3-upper end cover; 4-lower end cap; 5-liquid inlet; 6-a liquid outlet; 7-a first ring groove; 8-connecting pipe; 9-liquid discharge holes; 10-a fixed ring; 11-a filter mesh; 12-annular flow deflectors; 13-supporting strips; 14-elastic buckle; 15-ring seal ring; 16-a second ring-shaped card slot; 17-a filter screen.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in 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.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that the indication of the position or the positional relationship is based on the position or the positional relationship shown in the drawings, or the position or the positional relationship that the utility model is usually placed when using, or the position or the positional relationship that the skilled person conventionally understands, or the position or the positional relationship that the utility model is usually placed when using, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or suggest that the indicated device or element must have a specific position, be constructed and operated in a specific position, and thus, cannot be understood as limiting the present invention. Furthermore, the terms "first" and "second" are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. The drawings in the embodiments clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, not all embodiments.

As shown in fig. 1 and fig. 3, the present embodiment provides a blood perfusion device, which includes a column body 1, an adsorbent 2 is disposed in the column body 1, an upper end cap 3 and a lower end cap 4 are respectively disposed at two ends of the column body 1, and a liquid inlet 5 and a liquid outlet 6 are respectively disposed on the upper end cap 3 and the lower end cap 4. The column body 1 has a receiving chamber therein, and the adsorbent 2 in bulk is filled in the receiving chamber. The adsorbent 2 can be neutral macroporous resin, ion exchange resin, active carbon or carbonized resin, etc. to achieve different blood purification effects. The both ends of cylinder 1 all are equipped with the external screw thread, and upper end cover 3 and lower end cover 4 all are equipped with the internal thread, and upper end cover 3 and lower end cover 4 all with 1 threaded connection of cylinder. Blood enters the cylinder 1 from the liquid inlet 5 of the upper end cover 3, and is discharged from the liquid outlet 6 of the lower end cover 4 after being adsorbed and purified by the adsorbent 2.

First ring groove 7 has been seted up to cylinder 1 with the one end that upper end cover 3 is connected, the adaptation has filtering component in first ring groove 7, and filtering component can filter the impurity in the blood, guarantees the security of blood perfusion.

A connecting pipe 8 of a reel type structure is arranged between the filtering component and the upper end cover 3, the connecting pipe 8 is communicated with the liquid inlet 5, and a plurality of liquid discharge holes 9 are uniformly formed in the connecting pipe 8. The liquid discharge hole 9 is arranged at the bottom of the connecting pipe 8, the inlet end of the connecting pipe 8 is embedded in the liquid inlet 5, and blood enters the connecting pipe 8 from the liquid inlet 5 and then flows out of the liquid discharge hole 9 on the connecting pipe 8. Because connecting pipe 8 is the reel formula structure, outage 9 evenly sets up on connecting pipe 8, consequently the blood dispersion that flows out from outage 9 is in cylinder 1 to can cover the inner space of cylinder 1, be in adsorbent 2 in the middle of the cylinder 1 and adsorbent 2 homoenergetic all around and blood contact, adsorbent 2 in the middle of the assurance and adsorbent 2 all around homoenergetic all can obtain make full use of, have improved adsorbent 2's adsorption efficiency.

As shown in fig. 2, specifically, the filtering assembly includes a fixing ring 10, a flow dividing member is disposed in the fixing ring 10, and a filtering mesh sheet 11 is disposed below the flow dividing member. The shunt member can shunt the blood discharged from the liquid discharge hole 9, and has a further dispersing effect on the blood. The filter mesh sheet 11 can be a hydrophilic nylon mesh, the filter mesh sheet 11 is arranged at the bottom of the fixing ring 10, and the fixing ring 10 is arranged in the first ring-shaped clamping groove 7. The filter mesh 11 can not only filter impurities in blood, but also break a small amount of bubbles generated by the blood on the shunt, so that the blood passing through the filter mesh 11 does not contain bubbles, and the safety of blood perfusion is improved.

Preferably, the flow dividing member comprises a plurality of concentrically arranged annular flow deflectors 12, a support strip 13 is connected to the plurality of annular flow deflectors 12, and the support strip 13 is connected to the fixing ring 10. Support bar 13 has many, and many support bars 13 cross connection forms supporting framework in solid fixed ring 10, and supporting framework supports a plurality of annular water conservancy diversion pieces 12, and a plurality of annular water conservancy diversion pieces 12 and solid fixed ring 10 concentric settings guarantee that 1 inside middle adsorbent 2 of cylinder and adsorbent 2 homoenergetic all around can fully contact with blood.

Further, the annular guide vane 12 is obliquely arranged in the fixing ring 10. The blood flowing out from the liquid discharge hole 9 flows onto the annular flow deflector 12, the annular flow deflector 12 has a flow guiding function, and the blood flows along the annular flow deflector 12, thereby dispersing the blood into the interior of the column body 1.

In the present embodiment, a fixing member for fixing the connection pipe 8 is provided inside the upper cover 3. Preferably, the fixing member is a U-shaped elastic catch 14. The connecting pipe 8 is arranged on the inner side of the upper end cover 3 through the elastic buckle 14, and the connecting pipe 8 is more convenient to install and disassemble.

In the present embodiment, annular sealing rings 15 are provided between the column body 1 and the upper end cap 3, and between the column body 1 and the lower end cap 4. The annular sealing ring 15 is made of silicon rubber, the annular sealing ring 15 is arranged at the end part of the column body 1, the sealing performance of the column body 1 and the upper end cover 3 and the lower end cover 4 is guaranteed, and the working reliability of the blood perfusion device is enhanced.

In this embodiment, a second annular clamping groove 16 is formed at one end of the column body 1 connected with the lower end cover 4, and a filter screen 17 is adapted in the second annular clamping groove 16. The filter screen 17 can be a hydrophilic nylon net, and the filter screen 17 is used for filtering the adsorbent 2 mixed in the blood, so that the adsorbent 2 dropped off in the blood perfusion device is prevented from entering blood vessels of a human body to cause harm to the human body.

The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.

Claims

1. A blood perfusion device comprises a cylinder (1), wherein an adsorbent (2) is arranged in the cylinder (1), an upper end cover (3) and a lower end cover (4) are respectively arranged at two ends of the cylinder (1), and a liquid inlet (5) and a liquid outlet (6) are respectively arranged on the upper end cover (3) and the lower end cover (4); the liquid filter is characterized in that one end of the column body (1) connected with the upper end cover (3) is provided with a first annular clamping groove (7), a filter assembly is matched in the first annular clamping groove (7), a connecting pipe (8) of a reel type structure is arranged between the filter assembly and the upper end cover (3), the connecting pipe (8) is communicated with the liquid inlet (5), and a plurality of liquid discharge holes (9) are uniformly formed in the connecting pipe (8).

2. The hemoperfusion cartridge according to claim 1, characterised in that the filtering assembly comprises a fixed ring (10), inside which a shunt is arranged in the fixed ring (10), below which a filtering mesh (11) is arranged.

3. The hemoperfusion cartridge according to claim 2, characterised in that the splitter comprises a plurality of concentrically arranged annular baffles (12), a support strip (13) being connected to the plurality of annular baffles (12), the support strip (13) being connected to the fixation ring (10).

4. The hemoperfusion cartridge according to claim 3, characterised in that the annular deflector (12) is arranged obliquely inside the fixation ring (10).

5. The hemoperfusion cartridge according to claim 1, characterised in that the inner side of the upper end cap (3) is provided with a fixing piece for fixing the connection tube (8).

6. The hemoperfusion cartridge of claim 5, characterised in that the fixing member is a U-shaped elastic snap (14).

7. The hemoperfusion cartridge according to claim 1, characterised in that annular sealing rings (15) are arranged between the column (1) and the upper end cap (3) and between the column (1) and the lower end cap (4).

8. The hemoperfusion cartridge according to claim 1, characterised in that a second annular groove (16) is provided at the end of the column (1) connected to the lower end cap (4), and a filter screen (17) is fitted in the second annular groove (16).