CN218793312U

CN218793312U - Blood filter device with multiple filters

Info

Publication number: CN218793312U
Application number: CN202223581561.4U
Authority: CN
Inventors: 谭鲁平; 卢文军; 王晓杰; 李宇轩
Original assignee: Peking University Third Hospital Peking University Third Clinical Medical College
Current assignee: Peking University Third Hospital Peking University Third Clinical Medical College
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-04-07
Anticipated expiration: 2032-12-30

Abstract

The utility model relates to a device is strained to blood with many filters belongs to the medical equipment field, has solved prior art and has leaded to the patient to be forced down the machine because of the filter blocks up and influence treatment, increase the problem of medical personnel work load. The utility model discloses a blood filter device with multiple filters, which comprises a filter, a connecting pipe and a connecting assembly, wherein the filter comprises a filter main body, a second clamping block and a second clamping groove, and the filter main body is arranged between the second clamping block and the second clamping groove; the two ends of the filter main body are provided with connecting components, and the connecting pipes are connected with the connecting components; the connecting pipe comprises a first branch pipe and a second branch pipe, one end of the first branch pipe is connected with the connecting assembly, the other end of the first branch pipe is connected with the second branch pipe, the first end of the second branch pipe is provided with an external thread, the second end of the second branch pipe is provided with a connector, and an internal thread is arranged in a cavity of the connector. The utility model provides a device is strained to blood with many filters can change or adjust the filter according to the actual demand, avoids stopping because of the filter blocks up and leads to the treatment to be interrupted easy operation.

Description

Blood filter device with multiple filters

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a blood filter device with many filters.

Background

With the rapid development of blood purification technology, continuous renal replacement therapy has been widely applied to the rescue of patients with impaired renal function and various critically ill patients, and is a blood purification therapy technology for continuously and slowly removing water and solutes in an extracorporeal circulation blood purification manner to replace the renal function.

At present, the filter and the catheter are installed on special dialysis equipment for continuous kidney replacement therapy, and therapy is carried out through the dialysis equipment, but in the therapy process, the patient is often forced to get off the machine for replacing the filter because the filter is blocked, so that the therapy is interrupted, the therapy effect of the patient is seriously affected, the workload of medical staff is increased, and the operation steps are complicated.

SUMMERY OF THE UTILITY MODEL

In view of the above analysis, the utility model aims at providing a blood filter device with many filters, has solved prior art and has leaded to the patient to be forced down the machine because of the filter blocks up and influence treatment, increase the problem of medical personnel work load.

The purpose of the utility model is realized mainly through the following technical scheme:

the utility model provides a blood filter device with a plurality of filters, which comprises a filter, a connecting pipe and a connecting component, wherein the filter comprises a filter main body, a second clamping block and a second clamping groove, and the filter main body is arranged between the second clamping block and the second clamping groove; the two ends of the filter main body are provided with connecting components, and the connecting pipes are connected with the connecting components; the connecting pipe comprises a first branch pipe and a second branch pipe, one end of the first branch pipe is connected with the connecting assembly, the other end of the first branch pipe is connected with the second branch pipe, the first end of the second branch pipe is provided with an external thread, the second end of the second branch pipe is provided with a connector, and an internal thread is arranged in a cavity of the connector.

Further, coupling assembling includes base and sleeve pipe, and the sleeve pipe cover is located on first branch pipe, and the base is located on the filter main part.

Further, the base comprises a first cylinder, a second cylinder and a first clamping groove, the first cylinder and the second cylinder are arranged on the filter main body, the second cylinder is arranged in the through hole of the first cylinder, and the first clamping groove is positioned between the first cylinder and the second cylinder; the sleeve can be inserted into the first card slot.

Further, the sleeve comprises a top plate, a main pipe body and a first clamping block, the top plate is arranged at a port of the main pipe body, and the first clamping block is arranged on the inner wall of the through hole of the top plate.

Furthermore, the outer surface of the pipe wall of the first branch pipe is provided with a circular groove-shaped rotating rail, and the first clamping block is sleeved on the pipe body of the first branch pipe and clamped with the rotating rail.

Further, the primary tube can be inserted into the first card slot.

Furthermore, the inner wall of the cavity of the main pipe body is provided with internal threads, and the outer surface of the second cylinder body is provided with external threads.

Further, the sleeve pipe still includes the handle, and the both ends of roof are located to the handle.

Furthermore, the device also comprises a regulating valve, and the first branch pipe and the second branch pipe are both provided with regulating valves.

Further, the governing valve includes ectosphere, interior ball and knob, and first branch pipe and second branch pipe all are equipped with the ectosphere, have spherical cavity in the spheroid of ectosphere, and in the spherical cavity was located to the interior ball, the one end of knob passed through-hole on the ectosphere and was connected with interior ball, is equipped with liquid passage on the spheroid of interior ball.

Compared with the prior art, the utility model discloses can realize one of following beneficial effect at least:

(1) The utility model discloses a device is strained to blood with many filters, the first end of second branch pipe is equipped with the external screw thread, and the second end is equipped with has the internal screw thread connector, carries out the relatively fixed of threaded connection realization two second branch pipes through first end and second end to can adjust the connection quantity of connecting pipe and filter main part, be favorable to medical personnel to adjust filter quantity according to actual conditions, avoid causing the patient to be forced down to lead to the treatment to be interrupted because of the filter blocks up.

(2) The utility model discloses a blood filter device with many filters changes the flow direction of liquid at the connecting pipe through setting up the governing valve on first branch pipe and second branch pipe to opening and closing of the filter main part that control and connecting pipe are connected, when one of them filter takes place to block up, other filters are launched to the accessible governing valve, thereby avoid operating personnel to stop the treatment and dismantle the change with former filter, save operating procedure, save time.

The utility model discloses in, can also make up each other between the above-mentioned each technical scheme to realize more preferred combination scheme. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout the drawings.

FIG. 1 is a schematic view of a hemofilter device with multiple filters according to the present invention;

FIG. 2 is a view showing the connection relationship between the first branch tube and the sleeve of the blood filter device with a multi-filter according to the present invention;

FIG. 3 is a schematic view of the structure of the casing of the hemofiltration device with multiple filters according to the present invention;

FIG. 4 is a schematic view of the base of the hemofilter device with multiple filters according to the present invention;

fig. 5 is a schematic structural view of the first branch tube of the blood filtering device with multiple filters according to the present invention.

Reference numerals are as follows:

1-a filter; 11-a filter body; 12-a second fixture block; 121-a first plate; 122-a second plate; 13-a second card slot; 2-connecting pipe; 21-a first branch pipe; 211-shunting; 22-a second branch; 221-a connector; 3-connecting the components; 31-a base; 311-a first cylinder; 312-a second cylinder; 313-a first card slot; 32-a cannula; 321-a top plate; 322-a primary tube; 323-a first fixture block; 4-adjusting the valve; 41-outer ball; 42-knob.

Detailed Description

The following detailed description of the preferred embodiments of the invention, which is to be read in connection with the accompanying drawings, forms a part of the invention, and together with the embodiments of the invention, serve to explain the principles of the invention and not to limit the scope of the invention.

The embodiment of the utility model is specifically described as follows with reference to the attached figures 1 to 5:

the blood filter device with multiple filters provided by the embodiment comprises a filter 1, a connecting pipe 2 and a connecting assembly 3, as shown in fig. 1, wherein the filter 1 comprises a filter main body 11, the connecting assembly 3 is arranged at the upper end and the lower end of the filter main body 11, the connecting assembly 3 is connected with the connecting pipe 2, blood flows in from the connecting pipe 2 at one end of the filter main body 11, enters the filter main body 11 through the connecting assembly 3 for purification, and then flows out through the connecting assembly 3 and the connecting pipe 2 at the other end of the filter main body 11 in sequence.

The connecting pipe 2 comprises a first branch pipe 21 and a second branch pipe 22 which are vertically arranged, wherein a first end of the first branch pipe 21 is connected with the connecting component 3, a second end of the first branch pipe is connected with the second branch pipe 22, the first branch pipe 21 is positioned in the middle of the second branch pipe 22, and the inner cavity of the first branch pipe 21 is communicated with the inner cavity of the second branch pipe 22; the first end of second branch pipe 22 is equipped with the external screw thread, and the second end is equipped with connector 221 that has the internal screw thread, and threaded connection can be carried out with the second end to the first end of second branch pipe 22 for the connector 221 cover of second end is established at first serving, realizes the connection of two second branch pipes 22, thereby is favorable to a plurality of filters 1 to be connected through connecting pipe 2.

Referring to fig. 2 to 4, the connection assembly 3 includes a base 31 and a sleeve 32, the sleeve 32 is sleeved on a first end of the first branch pipe 21 and can rotate around the first branch pipe 21; specifically, the bushing 32 includes a top plate 321, a main pipe body 322 and a first fixture block 323, the top plate 321 is circular and is disposed at a port of the main pipe body 322, the main pipe body 322 is disposed perpendicular to the top plate 321, so that an inner cavity of the main pipe body 322 is communicated with a through hole of the top plate 321, a circular first fixture block 323 is adhered to an inner ring wall of the top plate 321, so that an outer ring of the first fixture block 323 is adhered to an inner wall of the through hole of the top plate 321, referring to fig. 5, a circular groove is disposed on an outer surface of a pipe wall of the first branch pipe 21 to serve as a rotating rail 211 of the first fixture block 323, an inner ring of the first fixture block 323 is sleeved on a pipe body of the first branch pipe 21 and is engaged with the rotating rail 211, so that the rotating rail 211 axially limits the bushing 32 and the first fixture block 323 can rotate around the rotating rail 211.

The base 31 is arranged on the filter main body 11 and comprises a first cylinder 311 and a second cylinder 312, the first cylinder 311 and the second cylinder 312 are both arranged on the filter main body 11, a through hole is arranged in the first cylinder 311, the second cylinder 312 is arranged in the through hole of the first cylinder 311, and a gap exists between the first cylinder 311 and the second cylinder 312, so that a circular first clamping groove 313 is formed between the first cylinder 311 and the second cylinder 312, a through hole communicated with the inner cavity of the filter main body 11 is arranged in the second cylinder 312, the first branch pipe 21 can be inserted into the through hole of the second cylinder 312, the main pipe 322 can be attached to the end face of the first clamping groove and inserted into the first clamping groove, and therefore the butt joint of the base 31 and the sleeve 32 is realized; in addition, in order to realize the relative fixation of the base 31 and the sleeve 32, the outer surface of the second cylinder 312 is provided with external threads, the inner wall of the cavity of the main pipe 322 is provided with internal threads, the main pipe 322 and the second cylinder 312 can be in threaded connection by rotating the main pipe 322, and the top plate 321 can be pressed against the second cylinder 312 through the threads; in order to improve the sealing performance of the connecting assembly 3, the contact surface of the top plate 321 and the second cylinder 312 may be coated with a silicone layer or a rubber layer as a sealing layer.

To facilitate the rotation of the sleeve 32, handles may be provided at both ends of the top plate 321, and the handles may be bent rods having a certain included angle.

The filter 1 further comprises a second clamping block 12 and a second clamping groove 13, the second clamping block 12 and the second clamping groove 13 are respectively arranged at two opposite ends of the filter main body 11, and the two filters 1 can be relatively fixed by inserting the second clamping block 12 into the second clamping groove 13 for clamping; the second block 12 is convex and comprises a first support plate 121 and a second support plate 122, the first support plate 121 is connected with the filter body 11, the second support plate 122 is arranged perpendicular to the first support plate 121, and the second support plate 122 protrudes out of the first support plate 121 from two ends, so that the section of the second block 12 is convex; the second clamping groove 13 is also in a convex shape and has an open upper end, the second clamping block 12 can be inserted from the upper end of the second clamping groove 13 and can move to the lower end of the second clamping groove 13, so that the second clamping groove 13 supports and fixes the second clamping block 12 from the bottom, series connection of a plurality of filter main bodies 11 is achieved, a user can adjust the number of the filters 1 according to actual conditions, and treatment interruption of a patient is avoided.

The adjusting valve 4 is arranged on the connecting pipe 2 and used as a switch of the connecting pipe 2, the adjusting valve 4 is preferably a spherical valve, the adjusting valve 4 comprises an outer ball 41, an inner ball and a knob 42, the outer ball 41 is arranged on the first branch pipe 21 and the second branch pipe 22, a spherical cavity is arranged in the outer ball 41, the inner ball is arranged in the spherical cavity of the outer ball 41 and can rotate in the spherical cavity, a through hole communicated with the spherical cavity is arranged on the outer ball 41, one end of the knob 42 penetrates through the through hole on the outer ball 41 and is connected with the inner ball, so that one end of the knob 42 is connected with the inner ball, the other end of the knob is positioned on the outer side of the outer ball 41, and the inner ball can be controlled to rotate relative to the outer ball 41 by screwing the knob 42; the inner ball is attached to the inner surface of the spherical cavity, so that the sealing property of the regulating valve 4 is ensured; the both ends of ectosphere 41 are equipped with the mounting hole, and the mounting hole communicates with each other with spherical cavity, and connecting pipe 2 is located in the mounting hole to, in order to avoid the weeping, the internal surface laminating setting of connecting pipe 2 and mounting hole.

The liquid flow in the connecting pipe 2 is controlled by the regulating valve 4, meanwhile, the starting and closing of the filter 1 can also be controlled, a liquid channel penetrating through the ball body is arranged on the inner ball, the knob 42 is screwed to enable the liquid channel to be opposite to the mounting hole, at the moment, the liquid channel is communicated with the connecting pipe 2, the liquid in the connecting pipe 2 can enter the regulating valve 4 from one end, flow out of the regulating valve 4 from the other end through the liquid channel and enter the next section of connecting pipe 2, at the moment, the regulating valve 4 is in a completely opened state, and the filter 1 connected with the connecting pipe 2 is also in a running state; the knob 42 is further turned to make the liquid passage perpendicular to the flow direction of the liquid in the connection tube 2, the liquid passage is not communicated with the connection tube 2, the liquid cannot pass through the inner ball, the control valve 4 is in a completely closed state, and the filter 1 connected to the connection tube 2 is in a closed and deactivated state, whereby the connection tube 2 and the filter connected to the connection tube 2 are turned on and off by the control valve 4.

In order to facilitate the adjustment of the flow direction of the liquid in the connecting pipe 2, the adjusting valves 4 may be respectively arranged on the first branch pipe 21 and the second branch pipe 22, wherein the adjusting valve 4 on the second branch pipe 22 is located at the first end of the second branch pipe 22.

When in use, the number of the filters 1 to be connected can be determined according to the treatment time, and the on-off regulation of the filters 1 can be realized by regulating the regulating valve 4 on the connecting pipe 2: the filter 1 is opened through the adjusting valve 4 on the first branch pipe 21, liquid enters the filter 1 for filtration, the adjusting valve 4 on the second branch pipe 22 is closed to close other filters 1 for standby, after the previous filter 1 is blocked, in order to keep the treatment uninterrupted, the adjusting valve 4 on the second branch pipe 22 and the adjusting valve 4 on the first branch pipe 21 connected with the next filter 1 are opened, the next second branch pipe 22 is kept in a closed state to close other filters 1 for standby, so that the next filter 1 is opened for use, and then the previous blocked filter 1 can be detached for replacement, the operation is flexible, and adverse effects on the treatment of patients are avoided.

The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.

Claims

1. A blood filter device with a multi-filter, comprising a filter (1), a connecting tube (2) and a connecting assembly (3), wherein the filter (1) comprises a filter main body (11), a second clamping block (12) and a second clamping groove (13), and the filter main body (11) is arranged between the second clamping block (12) and the second clamping groove (13); the connecting assemblies (3) are arranged at two ends of the filter main body (11), and the connecting pipes (2) are connected with the connecting assemblies (3); connecting pipe (2) include first branch pipe (21) and second branch pipe (22), the one end of first branch pipe (21) with coupling assembling (3) are connected, the other end with second branch pipe (22) are connected, the first end of second branch pipe (22) is equipped with the external screw thread, and the second end is equipped with connector (222), be equipped with the internal thread in the cavity of connector (222).

2. The hemofilter device with a multiple filter according to claim 1, characterized in that the connection assembly (3) comprises a base (31) and a sleeve (32), the sleeve (32) being fitted on the first branch (21), the base (31) being provided on the filter body (11).

3. The hemofiltration device with a multiple filter of claim 2, characterized in that the base (31) comprises a first cylinder (311), a second cylinder (312) and a first clamping groove (313), the first cylinder (311) and the second cylinder (312) are arranged on the filter body (11), the second cylinder (312) is arranged in the through hole of the first cylinder (311), and the first clamping groove (313) is arranged between the first cylinder (311) and the second cylinder (312); the sleeve (32) is insertable into the first card slot (313).

4. The hemofilter device with the multiple filters according to the claim 3, characterized in that the sleeve (32) comprises a top plate (321), a main tube body (322) and a first block (323), the top plate (321) is arranged at the port of the main tube body (322), the first block (323) is arranged on the inner wall of the through hole of the top plate (321).

5. The hemofiltration device with a multi-filter according to claim 4, characterized in that the outer surface of the wall of the first branch tube (21) is provided with a circular groove-shaped rotating rail (211), and the first clamping block (323) is sleeved on the tube body of the first branch tube (21) and clamped with the rotating rail (211).

6. The hemofilter device with the multiple filter according to claim 5, characterized in that the primary tube (322) is insertable in the first card slot (313).

7. The hemofiltration device with a multi-filter according to claim 6, characterized in that the inner wall of the cavity of the primary tubular body (322) is provided with an internal thread and the outer surface of the secondary tubular body (312) is provided with an external thread.

8. The hemofilter device with a multi-filter according to claim 7, characterized in that the sleeve (32) further comprises handles provided at both ends of the top plate (321).

9. The hemofiltration device with multiple filters according to claim 8, characterized by further comprising a regulating valve (4), the regulating valve (4) being provided on both the first branch (21) and the second branch (22).

10. The hemofiltration device with multiple filters according to claim 9, characterized in that the regulating valve (4) comprises an outer ball (41), an inner ball and a knob (42), the outer ball (41) is arranged on each of the first branch pipe (21) and the second branch pipe (22), a spherical cavity is arranged in a ball body of the outer ball (41), the inner ball is arranged in the spherical cavity, one end of the knob (42) passes through a through hole on the outer ball (41) to be connected with the inner ball, and a liquid channel is arranged on the ball body of the inner ball.