CN217697458U - Filter device for hemodialysis - Google Patents

Abstract

The utility model discloses a filter unit for hemodialysis, including a dialysis barrel, a dialysis membrane, an upper sealing cover and a lower sealing cover, wherein the dialysis barrel is in a cylindrical tubular structure, a spiral plate is fixed on the inner tube wall of the middle part of the dialysis barrel, the spiral gap space of the spiral plate is a flow channel, a liquid inlet tube is arranged in the dialysis barrel wall outside the top part of the flow channel, and a liquid outlet tube is arranged in the dialysis barrel wall outside the bottom part; the dialysis membrane is arranged in the center of the dialysis barrel, and the top and bottom ends are respectively punched at the top and bottom ends of the spiral plate, and the outer side wall of the spiral plate is attached to the inner side edge of the spiral plate; a blood inlet pipe is arranged in the central through hole of the upper sealing cover, and the upper sealing cover is screwed on the top end of the dialysis barrel; a blood outlet pipe is arranged in the central through hole of the lower sealing cover, and the lower sealing cover is sleeved at the bottom end of the dialysis barrel through a screw. The utility model discloses make the dialysate abundant with the dialysis membrane contact, be convenient for appear the material in the blood.

Description

A filter equipment for hemodialysis

Technical Field

The utility model relates to a filter equipment technical field, concretely relates to a filter equipment for hemodialysis.

Background

Hemodialysis is one of the kidney replacement treatment modes of patients with acute and chronic renal failure. The method comprises the steps of draining blood in vivo to the outside of the body, enabling the blood and electrolyte solution (dialysate) with similar body concentration to be inside and outside one hollow fiber through a dialyzer consisting of a plurality of hollow fibers, and carrying out substance exchange through dispersion, ultrafiltration, adsorption and convection principles, so as to remove metabolic waste in the body and maintain the balance of electrolyte and acid and alkali; at the same time, the excess water in the body is removed, and the whole process of purified blood reinfusion is called hemodialysis. Therefore, the filter device for hemodialysis is in a cylindrical shape, and a tube made of a dialysis membrane in a blood cylinder flows through the filter device to be in material communication with dialysate contained in the cylinder.

However, the prior art filtering devices for hemodialysis have a short flow path of the dialysate so that the blood cannot sufficiently exchange substances with the dialysate. Accordingly, one skilled in the art provides a filtering apparatus for hemodialysis to solve the problems set forth in the background art described above.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a filter device for hemodialysis, including a dialysis section of thick bamboo, dialysis membrane, upper seal cover, lower seal cover, a dialysis section of thick bamboo is the tubular structure of cylinder, be fixed with the spiral plate on the inner tube wall in the middle part of a dialysis section of thick bamboo, the heliciform interstitial space of spiral plate is flow channel, be provided with the feed liquor pipe in the dialysis section of thick bamboo wall in the outside of flow channel's top position, be provided with the drain pipe in the dialysis section of thick bamboo wall in the outside of bottom position; the dialysis membrane is of an I-shaped circular tubular structure, is arranged at the central part of the dialysis barrel, and the top and bottom ends of the dialysis membrane are respectively punched at the top and bottom ends and the outer side wall of the spiral plate to be attached to the inner side edge of the spiral plate; a blood inlet pipe is arranged in the central through hole of the upper sealing cover, and the upper sealing cover is screwed on the top end of the dialysis barrel; a blood outlet pipe is arranged in the central through hole of the lower sealing cover, and the lower sealing cover is sleeved at the bottom end of the dialysis barrel through a screw.

Preferably: the bottom of the lower sealing cover is provided with a blood fat filtering membrane, and the central part of the blood fat filtering membrane is of a hemispherical structure.

Preferably, the following components: the L-shaped pipe arranged in the through hole of the bottom wall of the lower sealing cover is a grease discharging pipe, and the top end of the grease discharging pipe is arranged in the through hole of the blood fat filtering membrane.

Preferably, the following components: the top bottom position of the tube hole of the dialysis cylinder is provided with an upper blocking tube and a lower blocking tube respectively, the top edge of the upper blocking tube is filled in a gap between the top end of the dialysis cylinder and the upper sealing cover, the top edge of the dialysis membrane is pressed by the bottom edge of the upper blocking tube, and the lower edge of the dialysis membrane is pressed by the side part and the top end of the blood fat filtering membrane.

Preferably: the dialysis barrel is sleeved with a heat-insulating sleeve.

Preferably: the insulating sleeve is a cylindrical tubular structure, the left half part and the right half part of the insulating sleeve are respectively a left half sleeve and a right half sleeve, and the right end of the left half sleeve is hinged with the left end of the right half sleeve.

Preferably, the following components: the heat insulation pad is embedded into the inner side walls of the left half sleeve and the right half sleeve, and the soft magnetic strips are embedded into the left front edge of the left half sleeve and the right front edge of the right half sleeve.

Preferably: the semicircular gaps arranged at the upper end part and the lower end part of the left side edge of the left half sleeve are pipe orifices, the semicircular gaps arranged at the upper end part and the lower end part of the right side edge of the right half sleeve are pipe orifices, and the liquid inlet pipe and the liquid outlet pipe penetrate out from the pipe orifices.

The utility model discloses a technological effect and advantage:

1. the utility model discloses set up a dialysis section of thick bamboo, enclose into spiral helicine flow path through the spiral plate, the dislysate flows down along the flow path spiral for the dislysate fully with the dialysis membrane contact, carry out the material with the blood in the dialysis membrane and exchange.

2. The utility model discloses set up the insulation cover, through the heat insulating mattress in half cover on a left side and the right side half cover prevent the heat loss in the section of thick bamboo of dialyzing, make things convenient for half cover on a left side of dismouting and half cover on the right side through soft magnetic strip.

Drawings

Fig. 1 is a perspective view of a filter device for hemodialysis provided by an embodiment of the present application;

FIG. 2 is a perspective view of a dialysis cartridge of a filtration device for hemodialysis provided by an embodiment of the present application;

FIG. 3 is a cross-sectional view of a dialysis cartridge of a filtration device for hemodialysis provided by an embodiment of the present application;

fig. 4 is a perspective view of an insulating sleeve of a filter device for hemodialysis according to an embodiment of the present disclosure.

In the figure: the dialysis device comprises a dialysis cylinder 10, a spiral plate 11, a liquid inlet pipe 12, a liquid outlet pipe 13, a dialysis membrane 14, an upper blocking pipe 15, a lower blocking pipe 16, an upper sealing cover 17, a blood inlet pipe 18, a lower sealing cover 19, a blood outlet pipe 20, a blood fat filtering membrane 21, a fat discharging pipe 22, a heat insulation sleeve 23, a left half sleeve 24, a right half sleeve 25, a heat insulation pad 26, a soft magnetic strip 27 and a pipe orifice 28.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Example 1

Referring to fig. 1 to 4, in the present embodiment, a filter device for hemodialysis is provided, including a dialysis cartridge 10, a dialysis membrane 14, an upper sealing cover 17, a lower sealing cover 19, an upper plug 15, a lower plug 16, and a thermal insulation sleeve 23, where the dialysis cartridge 10 is a cylindrical tubular structure, a spiral plate 11 is fixed on an inner tube wall of a middle portion of the dialysis cartridge 10, a spiral gap space of the spiral plate 11 is a flow channel, a liquid inlet tube 12 is disposed in a wall of the dialysis cartridge 10 outside a top end portion of the flow channel, and a liquid outlet tube 13 is disposed in a wall of the dialysis cartridge 10 outside a bottom end portion of the flow channel; the dialysis membrane 14 is in an I-shaped circular tubular structure, the dialysis membrane 14 is arranged at the central part of the dialysis barrel 10, and the top bottom end and the outer side wall of the spiral plate 11 are respectively stuck to the inner side edge of the spiral plate 11; a blood inlet pipe 18 is arranged in the central through hole of the upper sealing cover 17, and the upper sealing cover 17 is screwed on the top end of the dialysis barrel 10; a blood outlet pipe 20 is arranged in a central through hole of the lower sealing cover 19, the lower sealing cover 19 is screwed at the bottom end of the dialysis barrel 10, a blood fat filtering membrane 21 is arranged at the bottom of the lower sealing cover 19, the central part of the blood fat filtering membrane 21 is of a hemispherical structure, an L-shaped pipe arranged in the through hole of the bottom wall of the lower sealing cover 19 is a grease discharging pipe 22, and the top end of the grease discharging pipe 22 is arranged in the through hole of the blood fat filtering membrane 21; the upper plugging pipe 15 is arranged at the top end of the pipe hole of the dialysis cylinder 10, the gap between the top end of the dialysis cylinder 10 and the upper sealing cover 17 is filled at the top edge, and the bottom end presses the upper edge of the dialysis membrane 14; the lower blocking pipe 16 is arranged at the bottom end of the pipe hole of the dialysis cylinder 10, and the bottom edge presses the edge part of the blood fat filtering membrane 21, and the top end presses the lower edge of the dialysis membrane 14; the insulation cover 23 cover is on a dialysis section of thick bamboo 10, insulation cover 23 is the tubular structure of cylinder, the left and right sides of insulation cover 23 is half a left side 24 and half a right side cover 25 respectively, and half a left side 24 right-hand member of cover and the left end of half a right side cover 25 are articulated, the embedding has the heat insulating mattress 26 on half a left side 24 and half a right side cover 25's the inside wall, the left front side of half a left side cover 24 and the right front side of half a right side cover 25 on the embedding have soft magnetic stripe 27, the semicircular breach that the upper and lower tip position of half a left side of cover 24 respectively set up on a left side is mouth of pipe 28, the semicircular breach that the upper and lower tip position of half a right side cover 25 on a right side respectively set up is mouth of pipe 28, feed liquor pipe 12 and drain pipe 13 are all worn out from mouth of pipe.

Before use, the blood inlet pipe 18 is communicated with the blood input pipe, the blood outlet pipe 20 is communicated with the blood output pipe, the liquid inlet pipe 12 and the liquid outlet pipe 13 are respectively communicated with the output pipe and the input pipe of a dialyzate supply device, and the fat discharge pipe 22 is communicated with a blood fat collection bag; when the device is used, blood flows into a tube of the dialysis membrane 14 from the blood inlet tube 18, dialysate flows into the spiral plate 11 from the liquid inlet tube 12 and spirally flows downwards along the flow channel, the dialysate is coiled downwards around the outer side wall of the dialysis membrane 14 in the flowing process and fully contacts with the dialysis membrane 14, so that solutes in the blood pass through the dialysis membrane 14 and enter the dialysate, the dialysate into which the solutes are precipitated flows back into a dialysate supply device from the liquid outlet tube 13, the blood with the solutes precipitated is left at the bottom end of the dialysis cylinder 10 and then filtered by the blood fat filtering membrane 21, so that the dialyzed and lipid-filtered blood flows out from the blood outlet tube 20, and the filtered blood fat slides off from the spherical blood fat filtering membrane 21 and is discharged into the blood fat collecting bag from the lipid discharge tube 22; if the dialysis machine is used in winter, the left half sleeve 24 and the right half sleeve 25 can be respectively covered on the left side wall and the right side wall of the dialysis cylinder 10, the soft magnetic strips 27 are mutually adsorbed, so that the left half sleeve 24 and the right half sleeve 25 are fixed, the liquid inlet pipe 12 and the liquid outlet pipe 13 penetrate out of the pipe orifice 28, and the heat insulation pad 26 prevents heat in the dialysis cylinder 10 from being lost. The utility model discloses make the dialysate abundant with the dialysis membrane contact, be convenient for appear the material in the blood.

It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art and related fields without creative efforts shall fall within the protection scope of the present invention. The structures, devices, and methods of operation of the present invention, not specifically described and illustrated, are generally practiced by those of ordinary skill in the art without specific recitation or limitation.

Claims (5)

1. A filter device for hemodialysis, which is characterized by comprising a dialysis barrel (10), a dialysis membrane (14), an upper sealing cover (17) and a lower sealing cover (19), wherein the dialysis barrel (10) is of a cylindrical tubular structure, a spiral plate (11) is fixed on the inner tube wall of the middle part of the dialysis barrel (10), the spiral gap space of the spiral plate (11) is a flow channel, a liquid inlet tube (12) is arranged in the wall of the dialysis barrel (10) at the outer side of the top end part of the flow channel, and a liquid outlet tube (13) is arranged in the wall of the dialysis barrel (10) at the outer side of the bottom end part of the flow channel; the dialysis membrane (14) is in an I-shaped circular tubular structure, the dialysis membrane (14) is arranged at the central part of the dialysis barrel (10), and the top bottom end and the outer side wall of the spiral plate (11) are respectively stuck to the inner side edge of the spiral plate (11); a blood inlet pipe (18) is arranged in a central through hole of the upper sealing cover (17), and the upper sealing cover (17) is screwed on the top end of the dialysis barrel (10); a blood outlet pipe (20) is arranged in a central through hole of the lower sealing cover (19), and the lower sealing cover (19) is screwed at the bottom end of the dialysis barrel (10).

2. The filtration device for hemodialysis of claim 1, wherein a blood lipid filtration membrane (21) is disposed at the bottom of the lower cover (19), and the center of the blood lipid filtration membrane (21) is a hemisphere-shaped structure.

3. A filtering device for hemodialysis according to claim 2, wherein the L-shaped tube provided in the through hole of the bottom wall of the lower cover (19) is a grease discharging tube (22), and the top end of the grease discharging tube (22) is provided in the through hole of the blood fat filtering membrane (21).

4. The filtering device for hemodialysis according to claim 1, wherein an upper blocking tube (15) and a lower blocking tube (16) are respectively disposed at the top and bottom ends of the tube hole of the dialysis cartridge (10), the top edge of the upper blocking tube (15) fills a gap between the top end of the dialysis cartridge (10) and the upper sealing cap (17), the bottom edge presses the upper edge of the dialysis membrane (14), and the bottom edge of the lower blocking tube (16) presses the edge of the blood fat filtering membrane (21), and the top edge presses the lower edge of the dialysis membrane (14).

5. A filter device for hemodialysis according to claim 1, wherein the dialysis cartridge (10) is covered with a thermal insulation cover (23).

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