CN213312261U

CN213312261U - Dialyzer

Info

Publication number: CN213312261U
Application number: CN202021543328.5U
Authority: CN
Inventors: 陈贵文; 刘韶林; 张韩平; 冉若愚; 李运来
Original assignee: CHENGDU WEILISHENG BIOTECH CO LTD
Current assignee: CHENGDU WEILISHENG BIOTECH CO LTD
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-06-01
Anticipated expiration: 2030-07-30

Abstract

The utility model discloses a dialyzer, a serial communication port, including shell (1), connect two end covers (2) at shell (1) both ends respectively, set up blood export (4) on one of them end cover (2), set up blood entry (5) etc. on another end cover (2). The shell of the utility model is provided with the shell inserting groove, the end cover is provided with the end cover inserting groove, when in assembly, the annular inserting plate on the end cover is inserted into the shell inserting groove, and the shell annular clamping plate on the shell is inserted into the end cover inserting groove; simultaneously the utility model discloses a rectangle is personally submitted to the lower extreme cross section of sealing washer, and the upper surface that its lower extreme pasted tight encapsulation and was glued to improve the sealing performance between end cover and the shell.

Description

Dialyzer

Technical Field

The utility model relates to a dialysis equipment field specifically indicates a cerini dialyser cerini.

Background

Hemodialyzer is mainly used for hemodialysis and hemofiltration during treatment of acute and chronic kidney diseases, and mainly comprises a shell, hollow dialysis fibers in the shell, an end cover, a sealing ring and the like. When the blood purification device is used, blood flows into the shell from the liquid inlet at one end of the end cover, when the blood passes through the hollow dialysis fiber in the shell, electrolyte, medium and small molecular substances in the blood are separated by utilizing the concentration difference of solutes at two sides of the hollow dialysis fiber through the functions of permeation, diffusion and ultrafiltration, and the purified blood is discharged from the liquid outlet and returns to the body of a patient through the blood channel, so that the aims of removing metabolic products and toxic substances and correcting water and electrolyte balance disorder are fulfilled.

The structure of existing hemodialyzers generally comprises: the device comprises a shell, hollow dialysis fibers, pouring sealant, an end cover, a sealing ring and the like. However, the joint of the end cap and the shell of the existing hemodialyzer is easy to leak, and the risk of blood leakage can be caused in the using process, thereby seriously affecting the treatment of patients.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve the above-mentioned problem and provide a better cerini dialyser cerini of leakproofness.

The purpose of the utility model is realized through the following technical scheme: a dialyzer comprises a shell, two end covers which are respectively connected with two ends of the shell, a blood outlet arranged on one end cover, a blood inlet arranged on the other end cover, a dialysate inlet arranged on the shell and close to one end of the blood outlet, a dialysate outlet arranged on the shell and close to one end of the blood inlet, a plurality of hollow dialysis fibers arranged in the shell, two pieces of packaging glue which are respectively arranged at two ends of the hollow dialysis fibers and connected with the shell, and a dialysate shunting device which is arranged in the shell and communicated with the dialysate inlet; an annular inserting plate is arranged on the end cover, and an end cover inserting groove is formed between the annular inserting plate and the side wall of the end cover; the shell is provided with a shell annular clamping plate, and a shell inserting groove is formed between the shell annular clamping plate and the inner wall of the shell; the side wall of the shell is clamped into the cover insertion groove, and the annular insertion plate is clamped into the shell insertion groove.

The dialyzer also comprises a dialysate shunting device; the dialysate diversion device is arranged in the shell and is communicated with the dialysate inlet; the dialysate shunting device comprises a clamping pipe and an annular shunting pipe communicated with the clamping pipe; the liquid inlet end of the clamping pipe is clamped into the dialysate inlet, the annular flow dividing pipe is positioned in the shell, and the hollow dialysis fiber passes through the annular flow dividing pipe; the inboard of annular shunt tubes evenly is provided with a plurality of and goes out the liquid hole.

And a sealing ring mounting groove is formed in the end cover, and a sealing ring is mounted on the sealing ring mounting groove.

The cross section of the upper end of the sealing ring is arc-shaped, and the cross section of the lower end of the sealing ring is rectangular; the upper end of the sealing ring is clamped into the sealing ring mounting groove, and the lower end of the sealing ring is tightly attached to the upper surface of the packaging adhesive.

The inner side of the annular clamping plate of the shell is provided with a convex part, and the convex part is clamped into the packaging glue.

The inner side wall of the end cover is in threaded connection with the outer side wall of the shell.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

(1) the shell of the utility model is provided with the shell inserting groove, the end cover is provided with the end cover inserting groove, when in assembly, the annular inserting plate on the end cover is inserted into the shell inserting groove, and the shell annular clamping plate on the shell is inserted into the end cover inserting groove; simultaneously the utility model discloses a rectangle is personally submitted to the lower extreme cross section of sealing washer, and the upper surface that its lower extreme pasted tight encapsulation and was glued to improve the sealing performance between end cover and the shell.

(2) The utility model discloses be provided with dislysate diverging device, the dislysate flows into the back of coming in, through even dispersion dislysate in the even entering shell of dislysate diverging device, improves the dialysis efficiency of blood.

Drawings

Fig. 1 is a sectional view of the present invention.

Fig. 2 is a sectional view of the end cap of the present invention.

Fig. 3 is an enlarged schematic view of a portion a of fig. 1.

Fig. 4 is a structural diagram of the dialysate distributing device of the present invention.

The reference numbers in the above figures refer to: 1-shell, 2-end cover, 3-hollow dialysis fibre 4-blood export, 5-blood entry, 6-dislysate entry, 7-dislysate export, 8-sealing washer, 9-dislysate diverging device, 91-joint pipe, 92-annular shunt tubes, 93-play liquid hole, 10-encapsulation glue, 11-annular picture peg, 12-end cover inserting groove, 13-sealing washer mounting groove, 14-convex part, 15-shell annular cardboard, 16-shell inserting groove.

Detailed Description

The present invention will be described in further detail with reference to examples, but the present invention is not limited thereto.

Example 1

As shown in figure 1, the dialyzer of the present invention comprises a housing 1, and end caps 2 are mounted at both ends of the housing 1. One of the end caps 2 is provided with a blood outlet 4, and the other end cap 2 is provided with a blood inlet 5. The housing 1 is provided with a dialysate inlet 6 at the end adjacent the blood outlet 4 and a dialysate outlet 7 at the end of the housing 1 adjacent the blood inlet 5. Through above-mentioned structure, the dialyzer of this embodiment blood and dislysate produce the convection current when using, improve hemodialysis efficiency.

A plurality of hollow dialysis fibers 3 are arranged in the shell 1, two ends of each hollow dialysis fiber 3 are connected with packaging glue 10, and the packaging glue 10 is connected with the shell 1.

When in use, the dialyzer is connected with an external pipeline, blood flows in from the blood inlet 5, passes through the hollow dialysis fiber 3 and then flows out from the blood outlet 4. The dialysate flows in through the dialysate inlet 6 and out through the dialysate outlet 7. Blood flows in the hollow dialysis fiber 3, dialysate flows outside the hollow dialysis fiber 3, electrolyte and medium and small molecular substances in the blood are separated by utilizing the concentration difference of solutes at the inner side and the outer side of the hollow dialysis fiber through the functions of permeation, diffusion and ultrafiltration, and the purified blood is discharged from a liquid outlet and returns to the body of a patient through a blood channel, thereby achieving the purposes of removing metabolic products and toxic substances and correcting water and electrolyte balance disorder.

In order to improve the sealing performance, as shown in fig. 2 and 3, an annular insertion plate 11 is arranged on the end cover 2, and an end cover insertion groove 12 is formed between the annular insertion plate 11 and the side wall of the end cover 2. In addition, a casing annular clamping plate 15 is arranged on the casing 1, and a casing inserting groove 16 is formed between the casing annular clamping plate 15 and the inner wall of the casing 1. The side walls of the housing 1 snap into the cover plug-in grooves 12 and the annular plug-in plate 11 snap into the housing plug-in groove 16. By the above convex-concave structure, blood leakage can be prevented.

The inner side wall of the end cover 2 and the outer side wall of the shell 1 are both provided with threads, and the shell 1 and the end cover 2 are connected through the threads.

As shown in fig. 1 and 2, a sealing ring mounting groove 13 is formed in the end cover 2, and a sealing ring 8 is mounted on the sealing ring mounting groove 13. Specifically, the cross section of the upper end of the sealing ring 8 is arc-shaped, and the cross section of the lower end of the sealing ring is rectangular. During installation, the upper end of the sealing ring 8 is clamped into the sealing ring installation groove 13, and the lower end of the sealing ring is tightly attached to the upper surface of the packaging adhesive 10, so that the sealing performance between the shell 1 and the end cover 2 is further improved.

The inner side of the casing ring-shaped clamping plate 15 is provided with a convex part 14, the convex part 14 is annularly arranged on the casing ring-shaped clamping plate 15, and the convex part 14 is clamped into the packaging adhesive 10. The encapsulant 10 can be better supported by the bumps 14.

Example 2

This embodiment is substantially the same as embodiment 1, except that this embodiment is further provided with a dialysate flow divider 9, and this dialysate flow divider 9 is provided in the housing 1 and communicates with the dialysate inlet 6. Specifically, as shown in fig. 1 and 4, the dialysate distribution device 9 includes a clamping tube 91 and a ring-shaped shunt tube 92 in communication with the clamping tube 91. During installation, the liquid inlet end of the clamping tube 91 is clamped into the dialysate inlet 6, the annular shunt tube 92 is positioned in the housing 1, and the hollow dialysis fiber 3 passes through the annular shunt tube 92.

The inboard of annular shunt tubes 92 evenly is provided with a plurality of and goes out liquid hole 93, and the dislysate shunts annular shunt tubes 92 through joint pipe 91 after flowing in from dislysate entry 6, and the even entering into shell of play liquid hole 93 on the rethread annular shunt tubes 92 is through even dispersion dislysate, improves the dialysis efficiency of blood.

As described above, the utility model discloses alright fine realization.

Claims

1. A dialyzer is characterized by comprising a shell (1), two end covers (2) connected to two ends of the shell (1) respectively, a blood outlet (4) arranged on one end cover (2), a blood inlet (5) arranged on the other end cover (2), a dialysate inlet (6) arranged on the shell (1) and close to one end of the blood outlet (4), a dialysate outlet (7) arranged on the shell (1) and close to one end of the blood inlet (5), a plurality of hollow dialyzing fibers (3) arranged in the shell (1), and two pieces of packaging glue (10) which are arranged at two ends of the hollow dialyzing fibers (3) respectively and connected with the shell (1); an annular inserting plate (11) is arranged on the end cover (2), and an end cover inserting groove (12) is formed between the annular inserting plate (11) and the side wall of the end cover (2); a shell annular clamping plate (15) is arranged on the shell (1), and a shell inserting groove (16) is formed between the shell annular clamping plate (15) and the inner wall of the shell (1); the side wall of the shell (1) is clamped into the end cover insertion groove (12), and the annular insertion plate (11) is clamped into the shell insertion groove (16).

2. A dialyzer according to claim 1, further comprising a dialysate diversion means (9); the dialysate shunting device (9) is arranged in the housing (1) and is communicated with the dialysate inlet (6); the dialysate shunting device (9) comprises a clamping pipe (91) and an annular shunting pipe (92) communicated with the clamping pipe (91); the liquid inlet end of the clamping pipe (91) is clamped into the dialysate inlet (6), the annular shunt pipe (92) is positioned in the shell (1), and the hollow dialysis fiber (3) penetrates through the annular shunt pipe (92); the inner side of the annular shunt pipe (92) is uniformly provided with a plurality of liquid outlet holes (93).

3. A dialyzer according to claim 2, characterized in that the end cap (2) is provided with a sealing ring mounting groove (13), and the sealing ring (8) is mounted on the sealing ring mounting groove (13).

4. A dialyzer according to claim 3, characterized in that the upper end of the sealing ring (8) has a circular-arc-shaped cross section and the lower end has a rectangular-shaped cross section; the upper end of the sealing ring (8) is clamped into the sealing ring mounting groove (13), and the lower end of the sealing ring is tightly attached to the upper surface of the packaging adhesive (10).

5. A dialyzer according to claim 4, characterized in that the inner side of the housing ring snap (15) is provided with protrusions (14), which protrusions (14) snap into the encapsulating glue (10).

6. A dialyzer according to claim 5, characterized in that the inner side wall of the end cap (2) is in threaded connection with the outer side wall of the housing (1).