CN115227895A

CN115227895A - Nephrology department pressurization ultrafiltration device

Info

Publication number: CN115227895A
Application number: CN202210807478.XA
Authority: CN
Inventors: 乐丽; 何芳; 李欣
Original assignee: Zhongxian People's Hospital Of Chongqing
Current assignee: Zhongxian People's Hospital Of Chongqing
Priority date: 2022-07-11
Filing date: 2022-07-11
Publication date: 2022-10-25

Abstract

The invention discloses a pressurization ultrafiltration device for nephrology department, which comprises a movable seat, an ultrafiltration machine, an access door and a control console, wherein a conduit is inserted into the body of a patient, blood is sent into the ultrafiltration machine, ultrafiltration is carried out through two ultrafiltration membranes, pressurization is carried out through a pressurization frame, the blood after ultrafiltration is introduced into the body of the patient from the other side through the conduit, and ultrafiltration removal of metabolic wastes is completed.

Description

Nephrology department pressurization ultrafiltration device

Technical Field

The invention relates to the field of medical science, in particular to a pressurizing ultrafiltration device for nephrology department.

Background

The ultrafiltration technology is characterized in that small molecular solutes and a solvent penetrate through a special film with a certain aperture by pressurization, the large molecular solutes cannot pass through the other end of the special film, and then more concentrated pure concentrated solution of the large molecular solutes is obtained, ultrafiltration can be carried out on the liquid by an ultrafiltration device, a nephrotic patient cannot normally work due to own kidney, therefore, the ultrafiltration device is often used for filtering impurities contained in body blood, and then the large molecular metabolic wastes are concentrated and retained on the other side of the film, the ultrafiltered clean blood reenters the human body to achieve the purpose of removing the metabolic wastes, but in the process of carrying out ultrafiltration on a patient with more viscous blood, as the patient blood is viscous and metabolic wastes, the flow speed is low, more impurities are retained on one side after ultrafiltration, and then the blood which returns to the body again after passing through is less, pressure difference can be generated in a blood vessel due to the difference of the volume of blood backflow, and then suction is generated on the liquid in the ultrafiltration device, therefore, after ultrafiltration is finished, clean blood can be easily and part of the blood can be quickly absorbed into the blood vessel, and the metabolic wastes can still be influenced.

Disclosure of Invention

Aiming at the problems that in the process of carrying out ultrafiltration on a patient with viscous blood, the viscous waste metabolites in the blood of the patient are more and the flowing speed is low, so more impurities are left on one side of an ultrafiltration membrane after ultrafiltration, and the blood which returns to the body again is less after passing through the ultrafiltration membrane, pressure difference is generated in the blood vessel due to the difference of the volume of blood backflow, and then suction is generated on liquid in an ultrafiltration device, so that clean blood is easily and quickly sucked into the blood vessel after ultrafiltration is finished, and partial concentrated waste metabolites are sucked back into the blood vessel again, so that the blood still contains partial waste metabolites after ultrafiltration, and the ultrafiltration effect is influenced, the invention provides the pressurization ultrafiltration device for the nephrology department.

In order to realize the purpose, the invention is realized by the following technical scheme: a nephrology department pressurization ultrafiltration device structurally comprises a moving seat, an ultrafiltration machine, an access door and a control console, wherein the top surface of the moving seat is movably clamped with the bottom surface of the ultrafiltration machine, the access door is embedded in the front surface of the ultrafiltration machine, and the bottom surface of the control console is welded on the top surface of the ultrafiltration machine; the ultrafilter includes shell, linker, milipore filter, pressurization frame, shell top surface and control cabinet bottom surface welded connection, the milipore filter is connected with the shell inlayer below and on the top, fixed mounting is in the shell left side about the linker, pressurize and put up below and the shell inlayer below and inlay solid and be connected, the milipore filter is equipped with two, and two milipore filter clearances evenly distributed are in the shell inlayer.

Furthermore, the communicating vessel comprises an input pipe, an expansion sheet and a thrust frame, wherein the left side of the expansion sheet is communicated with the right side of the input pipe and is clamped with the right side of the input pipe in a movable manner, the upper surface and the lower surface of the input pipe are fixedly connected with the inner layer of the shell, the right side of the thrust frame is fixedly connected with the left side of the expansion sheet, and the inner layer of the expansion sheet is provided with three triangular block structures with smooth surfaces.

Furthermore, the input tube comprises a tube wall, a guide sheet, an expansion plate and a guide head, wherein the inner layer of the tube wall is movably clamped with the bottom of the guide sheet, the left side of the expansion plate is movably connected with the right side of the tube wall, the right side of the expansion plate is movably clamped with the left side of the expansion sheet, the back of the guide head is fixedly installed on the inner layer of the tube wall, a sealing strip is arranged on the left side of the expansion plate, the left side of the expansion plate is made of medical silica gel materials, and the sealing strip is connected with the tube wall.

Further, the direction head includes guide block, compression piece, heating ring, restores the frame, guide block right side and compression piece left side swing joint, the heating ring is embedded in the compression piece skin, restore the frame upper and lower and compress the piece inlayer and inlay the solid and connect, guide block back fixed mounting is in the pipe wall inlayer, the heating ring is equipped with five, and five heating ring clearances are evenly ring-shaped distribution in the compression piece skin.

Further, the guide block includes posterior lateral plate, compression frame, pulling force guide piece, deflector, posterior lateral plate left side and compression frame right side are inlayed and are connected, posterior lateral plate right side and compression block left side swing joint, pulling force guide piece left side and compression frame top surface are inlayed and are connected, pulling force guide piece right side and deflector left side are inlayed and are linked firmly, deflector bottom and compression frame top surface activity block, the compression frame inlayer is equipped with a V-arrangement hollow out construction.

Furthermore, the deflector includes activity head, rearmounted piece, hinders head, impingement plate, activity head center and the activity block of compression frame top surface, rearmounted piece bottom surface is inlayed with the first outer solid and is connected, it inlays solid with the back film-making right side and is connected to hinder first left side, impingement plate both sides and rearmounted piece left side swing joint, it is the rough surface's fin-shaped block structure to hinder the head, and stands upside down and place.

Furthermore, the impact plate comprises an extension plate, a connecting sheet, a thrust block and a fitting head, wherein the two sides of the extension plate are movably connected with the left side of the rear piece through the connecting sheet, the right side of the thrust block is fixedly connected with the left side of the extension plate in an embedded mode, the bottom of the fitting head is movably clamped with the top of the extension plate, and the thrust block is of a fin-shaped block structure with a smooth surface and is vertically arranged.

Further, the laminating head includes torsion spring ring, installation piece, strikes groove, kicking block, torsion spring ring center and extension plate top surface activity block, installation piece bottom surface and the outer embedded solid of torsion spring ring are connected, strike groove and installation piece right side integrated into one piece, kicking block right side and installation piece left side activity block, the kicking block bottom surface is equipped with an elasticity piece and the outer layer of torsion spring ring is connected, and the top uses medical silica gel material to make.

Advantageous effects

Compared with the prior art, the invention has the following beneficial effects:

1. the invention inserts the catheter into the body of a patient, sends blood into an ultrafiltration machine, carries out ultrafiltration through two ultrafiltration membranes, carries out pressurization through a pressurization frame, then leads the blood after ultrafiltration into the body of the patient through the catheter from the other side, finishes ultrafiltration removal of metabolic waste, leads the concentrated metabolic waste liquid on the left side of the ultrafiltration membrane to be sucked to the left side due to pressure difference generated after ultrafiltration, leads the liquid to impact a communicating vessel at the moment, and carries out first blocking on a triangular block structure arranged on an expansion sheet, leads an expansion plate to recover due to losing pressure to the right side, reduces the inner diameter of a tube wall, simultaneously squeezes a compression block of a guide head to deform, leads the backflow concentrated liquid to be upwards and downwards guided to impact on a guide sheet of the guide block, thereby rapidly pushing the guide plate to be attached to the inner layer of the tube wall, avoiding the backflow of the concentrated liquid, preventing the metabolic waste from reentering the blood, and ensuring the effect of ultrafiltration.

2. When the guide plate is impacted by liquid in the right direction, the liquid is impacted on the extension plate and the thrust block of the impact plate, the rear piece is driven to move under the action of the movable head, the inclination is reduced, the flowing area is enlarged, meanwhile, the bonding head arranged at the top of the extension plate is twisted, the torsion spring ring is twisted and generates elasticity, after ultrafiltration is finished, the reversely poured concentrated liquid can quickly impact on the rear piece and generate resistance through the blocking head, meanwhile, the blocking head also generates reaction force to be applied on the rear piece, the movable head is quickly twisted, the impacted concentrated liquid continues to move upwards and flows into the impact groove, the elasticity generated by the torsion spring ring is further accelerated to release, meanwhile, the extension plate is quickly pulled back, the extension plate drives the bonding head to move and stop to generate inertia to be applied on the top block to quickly move and bond on the pipe wall, and the elastic sheet structure arranged at the bottom is used for pressurizing to enhance the sealing effect, so that the returned waste metabolic liquid cannot continuously enter the blood again through the blocking head.

Drawings

Fig. 1 is a schematic three-dimensional structure diagram of a pressurized ultrafiltration device for nephrology department of the invention.

FIG. 2 is a schematic structural view of a front cross section of the ultrafilter of the present invention.

Fig. 3 is a schematic structural view of a front cross section of the communicating vessel of the present invention.

FIG. 4 is a schematic structural diagram of a front cross section of the input tube of the present invention.

Fig. 5 is a structural schematic diagram of a front cross section of the guide head of the invention.

Fig. 6 is a schematic structural view of a front section of the guide block of the present invention.

Fig. 7 is a schematic structural view of a front cross section of the guide plate of the present invention.

FIG. 8 is a schematic structural view of an elevational cross-section of an impingement plate of the present invention.

Fig. 9 is a schematic structural view of a front cross section of the bonding head of the present invention.

In the figure: the device comprises a moving seat-1, an ultrafilter-2, an access door-3, a console-4, a shell-21, a communicating vessel-22, an ultrafiltration membrane-23, a pressurizing frame-24, an input pipe-221, an expansion sheet-222, a thrust frame-223, a pipe wall-A1, a guide sheet-A2, an expansion plate-A3, a guide head-A4, a guide block-A41, a compression block-A42, a heating ring-A43, a restoration frame-A44, a rear side plate-B1, a compression frame-B2, a tension guide sheet-B3, a guide plate-B4, a movable head-B41, a rear sheet-B42, a blocking head-B43, an impact plate-B44, an extension plate-C1, a connecting sheet-C2, a thrust block-C3, a joint head-C4, a torsion spring ring-C41, an installation block-C42, an impact groove-C43 and a top block-C44.

Detailed Description

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention, and all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The first embodiment is as follows:

referring to fig. 1-6, the embodiments of the present invention are as follows: a pressurization ultrafiltration device for nephrology department structurally comprises a moving seat 1, an ultrafiltration machine 2, an access door 3 and a control console 4, wherein the top surface of the moving seat 1 is movably clamped with the bottom surface of the ultrafiltration machine 2, the access door 3 is embedded in the front surface of the ultrafiltration machine 2, and the bottom surface of the control console 4 is welded on the top surface of the ultrafiltration machine 2; ultrafilter 2 includes shell 21, linker 22, milipore filter 23, adds the pressure frame 24, shell 21 top surface and 4 bottom surface welded connection of control cabinet, 23 upper and lower faces of milipore filter are connected with the inlayer of shell 21 in an embedded manner, fixed mounting is in shell 21 left side about linker 223 upper and lower faces, add the pressure frame 24 upper and lower faces and the inlayer of shell 21 in an embedded manner and be connected, milipore filter 23 is equipped with two, and 23 clearances of two milipore filters evenly distribute in the inlayer of shell 21, are favorable to carrying on many times ultrafiltration, and then make the ultrafiltration effect better.

The communicating vessel 22 comprises an input pipe 221, an expansion piece 222 and a thrust frame 223, the left side of the expansion piece 222 is communicated with the right side of the input pipe 221 and is clamped movably, the upper surface and the lower surface of the input pipe 221 are fixedly connected with the inner layer of the shell 21, the right side of the thrust frame 223 is fixedly connected with the left side of the expansion piece 222, the inner layer of the expansion piece 222 is provided with three triangular block structures with smooth surfaces, and the flowing resistance of suck-back liquid is higher.

The input tube 221 comprises a tube wall A1, a guide sheet A2, an expansion plate A3 and a guide head A4, wherein an inner layer of the tube wall A1 is movably clamped with the bottom of the guide sheet A2, the left side of the expansion plate A3 is movably connected with the right side of the tube wall A1, the right side of the expansion plate A3 is movably clamped with the left side of the expansion sheet 222, the back of the guide head A4 is fixedly mounted on the inner layer of the tube wall A1, a sealing strip is arranged on the left side of the expansion plate A3 and made of medical silica gel materials, the expansion plate A3 is connected with the tube wall A1 through the sealing strip, sealing through the sealing strip is facilitated, liquid is prevented from flowing into a gap between the tube wall A1 and the expansion plate A3, meanwhile, elasticity can be generated, and the expansion plate A3 can be extruded to further enable flowing liquid to flow more, and the flowing pressure of the liquid is increased.

The guide head A4 comprises a guide block A41, a compression block A42, heating rings A43 and a restoration frame A44, the right side of the guide block A41 is movably connected with the left side of the compression block A42, the heating rings A43 are embedded in the outer layer of the compression block A42, the upper surface and the lower surface of the restoration frame A44 are fixedly connected with the inner layer of the compression block A42, the back surface of the guide block A41 is fixedly arranged in the inner layer of the tube wall A1, five heating rings A43 are arranged, and gaps among the five heating rings A43 are uniformly distributed in the outer layer of the compression block A42 in a ring shape, so that the blood flowing through is favorably heated, the temperature of the blood is kept, and the temperature reduction of a patient caused by the temperature reduction in the flowing process is avoided.

Wherein, guide block A41 includes posterior lateral plate B1, compression frame B2, pulling force guide vane B3, deflector B4, posterior lateral plate B1 left side is connected with the right side of compression frame B2 is set firmly, posterior lateral plate B1 right side and compression block A42 left side swing joint, pulling force guide vane B3 left side is connected with the top surface of compression frame B2 is set firmly, pulling force guide vane B3 right side is connected with deflector B4 left side set firmly, deflector B4 bottom and compression frame B2 top surface activity block, compression frame B2 inlayer is equipped with a V-arrangement hollow out construction, is favorable to extrudeing it when liquid is more and makes it by the internal compression, further enlarges the flow pressure of liquid.

Based on the above embodiment, the specific working principle is as follows: the invention inserts the catheter into the body of a patient, sends the blood into the ultrafiltration machine 2, carries out ultrafiltration through two ultrafiltration membranes 23, carries out pressurization through a pressurization frame 24, then leads the ultrafiltered blood into the body of the patient from the other side through the catheter, finishes ultrafiltration removal of metabolic waste, leads the concentrated metabolic waste liquid on the left side of the ultrafiltration membrane 23 to be sucked to the left side due to the pressure difference generated after ultrafiltration, at the same time, the liquid impacts a communicating device 22, and carries out first blocking in a triangular block structure arranged on an expansion sheet 222, leads an expansion plate A3 to be restored due to losing the pressure towards the right side, reduces the inner diameter of a pipe wall A1, simultaneously, a compression block A42 of a guide head A4 is extruded and deformed, leads the backflow concentrated liquid to be upwards and downwards guided to impact on a guide sheet B4 of a guide block A41, thereby rapidly pushing the guide plate B4 to be attached to the inner layer of the pipe wall A1, avoiding backflow of the concentrated liquid, preventing the metabolic waste from reentering the blood, and ensuring the ultrafiltration effect.

Example two:

referring to fig. 7-9, the embodiment of the present invention is as follows: the deflector B4 includes activity head B41, rearmounted piece B42, arresting head B43, impingement plate B44, activity head B41 center and the activity block of compression frame B2 top surface, rearmounted piece B42 bottom surface is connected with the outer solid of embedding of activity head B41, arresting head B43 left side is connected with the right side of rearmounted piece B42 solid of embedding, impingement plate B44 both sides and rearmounted piece B42 left side swing joint, arresting head B43 is the rough surface's fin-shaped block structure, and places in an inverted position, is favorable to producing bigger resistance in the time of suck-back to make rearmounted piece B42 produce the reaction sooner.

Wherein, impingement plate B44 includes extension plate C1, connection piece C2, thrust block C3, laminating head C4, connection piece C2 and rearmounted piece B42 left side swing joint are passed through to extension plate C1 both sides, thrust block C3 right side and extension plate C1 left side are inlayed fixedly and are connected, laminating head C4 bottom and extension plate C1 top activity block, thrust block C3 is the glossy fin-shaped block structure in surface, and just upright places, is favorable to making the liquid of upflow produce stronger motive force, promotes extension plate C1 better and removes under connection piece C2's restriction.

Wherein, the laminating head C4 includes torsion spring ring C41, installation piece C42, strikes groove C43, kicking block C44, torsion spring ring C41 center and extension plate C1 top surface activity block, installation piece C42 bottom surface is connected with torsion spring ring C41 skin embedded solid, strike groove C43 and installation piece C42 right side and be integrated into one piece, kicking block C44 right side and installation piece C42 left side activity block, kicking block C44 bottom surface is equipped with an elastic sheet and torsion spring ring C41 skin joint, and the top uses medical silica gel material to make, is favorable to producing stronger elasticity, and then makes the top structure can seal more fast after the operation is ended to produce better sealed effect.

Based on the above embodiment, the specific working principle is as follows: when the guide plate B4 impacts the liquid in the right direction, the liquid is impacted on the extension plate C1 and the thrust block C3 of the impact plate B44, the rear piece B42 is driven to move under the action of the movable head B41, the inclination is reduced, the flowing area is enlarged, the adhering head C4 arranged at the top of the extension plate C1 is twisted, the torsion spring ring C41 is twisted and generates elasticity, after ultrafiltration is finished, the reversely poured concentrated liquid quickly impacts the rear piece B42 and generates resistance through the obstruction head B43, the obstruction head B43 also generates counter-acting force to be applied to the rear piece B42, the movable head B41 is quickly twisted, the impacted concentrated liquid continuously moves upwards and flows into the impact groove C43, the elasticity generated by the torsion spring ring C41 is further accelerated and released, the connecting piece C2 also quickly pulls back the extension plate C1, the adhering plate C1 stops moving, the rear piece C4 is driven to generate inertia, the top block C44 is further accelerated and is applied to the waste to be adhered to the bottom of the tube wall, and the waste is prevented from being metabolized and flowing back again through the metabolism structure, and the waste is prevented from being further metabolized and flowing back.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a nephrology dept pressurization ultrafiltration device, its structure is including removing seat (1), ultrafiltration machine (2), access door (3), control cabinet (4), its characterized in that:

the top surface of the movable seat (1) is movably clamped with the bottom surface of the ultrafiltration machine (2), the access door (3) is embedded into the front surface of the ultrafiltration machine (2), and the bottom surface of the console (4) is welded on the top surface of the ultrafiltration machine (2);

ultrafilter (2) is including shell (21), linker (22), milipore filter (23), pressurization frame (24), shell (21) top surface and control cabinet (4) bottom surface welded connection, milipore filter (23) top and bottom are connected with shell (21) inlayer embedment, linker (223) top and bottom fixed mounting is in shell (21) left side, it is connected with shell (21) inlayer embedment to add pressure frame (24) top and bottom.

2. The pressurized ultrafiltration device for nephrology department according to claim 1, wherein: the communicating vessel (22) comprises an input pipe (221), expansion pieces (222) and a thrust frame (223), the left side of each expansion piece (222) is communicated with the right side of the input pipe (221) and clamped movably, the upper surface and the lower surface of the input pipe (221) are fixedly connected with the inner layer of the shell (21), and the right side of the thrust frame (223) is fixedly connected with the left side of each expansion piece (222).

3. The pressurized ultrafiltration device for nephrology department according to claim 2, wherein: input tube (221) includes pipe wall (A1), guide plate (A2), enlarges board (A3), direction head (A4), pipe wall (A1) inlayer and guide plate (A2) bottom activity block, enlarge board (A3) left side and pipe wall (A1) right side swing joint, enlarge board (A3) right side and expansion piece (222) left side activity block, direction head (A4) back fixed mounting is in pipe wall (A1) inlayer.

4. The pressure ultrafiltration device for nephrology department according to claim 3, wherein: the guide head (A4) comprises a guide block (A41), a compression block (A42), a heating ring (A43) and a restoration frame (A44), the right side of the guide block (A41) is movably connected with the left side of the compression block (A42), the heating ring (A43) is embedded into the outer layer of the compression block (A42), the upper surface and the lower surface of the restoration frame (A44) are fixedly embedded into the inner layer of the compression block (A42), and the back surface of the guide block (A41) is fixedly installed on the inner layer of the pipe wall (A1).

5. The pressurized ultrafiltration device for nephrology department according to claim 4, wherein: guide block (A41) includes posterior lateral plate (B1), compression frame (B2), pulling force guide vane (B3), deflector (B4), posterior lateral plate (B1) left side is inlayed admittedly with compression frame (B2) right side and is connected, posterior lateral plate (B1) right side and compression block (A42) left side swing joint, pulling force guide vane (B3) left side is inlayed admittedly with compression frame (B2) top surface and is connected, pulling force guide vane (B3) right side is inlayed admittedly with deflector (B4) left side and is connected, deflector (B4) bottom and compression frame (B2) top surface activity block.

6. The pressurized ultrafiltration device for nephrology department according to claim 5, wherein: deflector (B4) are including activity head (B41), rearmounted piece (B42), arresting head (B43), impingement plate (B44), activity head (B41) center and compression rack (B2) top surface activity block, rearmounted piece (B42) bottom surface is connected with activity head (B41) outer the inlaying, arresting head (B43) left side and rearmounted piece (B42) right side are connected with inlaying, impingement plate (B44) both sides and rearmounted piece (B42) left side swing joint.

7. The pressure ultrafiltration device for nephrology department according to claim 6, which is characterized in that: impact plate (B44) includes extension plate (C1), connection piece (C2), thrust block (C3), laminating head (C4), connection piece (C2) and rearmounted piece (B42) left side swing joint are passed through to extension plate (C1) both sides, thrust block (C3) right side and extension plate (C1) left side are inlayed and are connected, laminating head (C4) bottom and extension plate (C1) top activity block.

8. The pressurized ultrafiltration device for nephrology department according to claim 7, wherein: the attaching head (C4) comprises a torsion spring ring (C41), an installation block (C42), an impact groove (C43) and a top block (C44), the center of the torsion spring ring (C41) is movably clamped with the top surface of the extension plate (C1), the bottom surface of the installation block (C42) is fixedly embedded with the outer layer of the torsion spring ring (C41), the impact groove (C43) and the right side of the installation block (C42) are integrally formed, and the right side of the top block (C44) is movably clamped with the left side of the installation block (C42).