CN220025735U

CN220025735U - Peritoneal dialysis flow controller

Info

Publication number: CN220025735U
Application number: CN202320963534.9U
Authority: CN
Inventors: 杨丽娜
Original assignee: First Hospital of China Medical University
Current assignee: First Hospital of China Medical University
Priority date: 2023-04-25
Filing date: 2023-04-25
Publication date: 2023-11-17
Anticipated expiration: 2033-04-25

Abstract

The utility model relates to the technical field of medical appliances, in particular to a peritoneal dialysis flow controller. The peritoneal dialysis flow controller comprises a fixed shell, an extrusion assembly and a regulating assembly; the adjusting component comprises a rotating cylinder, the rotating cylinder is sleeved below the outer wall of the fixed shell through a threaded structure, a plurality of fixed rods which are fixedly connected are arranged in the rotating cylinder, and a squeezing ring is arranged at the top of each fixed rod. According to the peritoneal dialysis flow controller provided by the utility model, the rotating cylinder in the adjusting component is sleeved on the outer wall of the fixed shell by adopting the screw thread, the phenomenon that the end section is changed to change the flow rate of the dialyzate can be avoided due to loosening of the extruding plate for extruding the dialyzate through the self-locking property of the screw thread structure, the dialyzate can be always circulated at the set flow rate, a series of adverse phenomena caused by too high input flow rate of the dialyzate by a patient can be avoided, and the stability of the peritoneal dialysis flow controller can be further improved when the peritoneal dialysis device is used.

Description

Peritoneal dialysis flow controller

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a peritoneal dialysis flow controller.

Background

Peritoneal Dialysis (PD) is to regularly and regularly fill a prepared dialysate into a peritoneal cavity of a patient through a catheter by utilizing the characteristic that a peritoneal membrane is used as a semi-permeable membrane under the action of gravity, and the solute on the high concentration side moves to the low concentration side (dispersion effect) due to the concentration gradient difference of the solute on the two sides of the peritoneal membrane; moisture moves from the hypotonic side to the hypertonic side (osmosis). The peritoneal dialysis solution is continuously replaced to achieve the purposes of removing metabolic products and toxic substances in the body and correcting water and electrolyte balance disturbance. In the case of peritoneal dialysis fluid infusion, a flow controller is often used to regulate the rate of infusion of the dialysis fluid.

The flow regulator used in the conventional common transfusion is usually sleeved outside a transfusion hose, and the pressure roller which is gradually close to and presses the transfusion hose is used for controlling the cross-sectional area inside the transfusion hose to regulate the flow, and when the flow regulator is used, the position of the pressure roller is easy to move along with the continuous flowing pushing force of the dialysate, so that the dialysate flow is changed, the flow of the dialysate entering a patient is changed, and a series of adverse phenomena are caused.

Accordingly, there is a need to provide new peritoneal dialysis flow controllers that address the above-described technical issues.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a peritoneal dialysis flow controller.

The peritoneal dialysis flow controller provided by the utility model comprises:

a fixed shell, an extrusion assembly and an adjustment assembly;

the extrusion assembly comprises a fixed ring, and a plurality of extrusion plates are arranged in the fixed ring;

the adjusting component comprises a rotating cylinder, the rotating cylinder is sleeved below the outer wall of the fixed shell through a threaded structure, a plurality of fixed rods which are fixedly connected are arranged in the rotating cylinder, and a squeezing ring is arranged at the top of each fixed rod.

Preferably, the fixed ring is fixedly arranged on the inner wall of the fixed shell, a telescopic rod and a spring are arranged between the fixed ring and each extrusion plate, and a guide plate fixedly connected with one side of each extrusion plate, which is close to the inner wall of the fixed ring, is arranged.

Preferably, the outer wall of each guide piece is propped against the inner wall of the extrusion ring and is in sliding connection, and the width of the bottom of each guide piece is smaller than that of the top.

Preferably, each of the two ends of the spring is fixedly connected with the outer wall of the corresponding extrusion plate and the inner wall of the fixed ring respectively, each of the two ends of the telescopic rod is fixedly connected with the outer wall of the corresponding extrusion plate and the inner wall of the fixed ring respectively, and each of the telescopic rods is located inside the corresponding spring respectively.

Preferably, the outer wall of the rotating cylinder is provided with a fixed arrow, and the bottom of the rotating cylinder is provided with a communicated holding cylinder.

Preferably, a rubber cylinder is arranged at the top of the fixed shell, and a transparent cover is sleeved below the outer wall of the fixed shell and fixedly connected with the rubber cylinder.

Preferably, the transparent cover is sleeved outside the rotating cylinder, and scales are arranged on the outer wall of the transparent cover.

Compared with the related art, the peritoneal dialysis flow controller provided by the utility model has the following beneficial effects:

1. the rotating cylinder in the adjusting component is sleeved on the outer wall of the fixed shell by adopting the screw thread, and the phenomenon that the end section is changed to change the flow rate of the dialysate can be avoided due to loosening of the extruding plate for extruding the dialysis tube through the self-locking property of the screw thread structure, so that the dialysate can be always circulated at the set flow rate, a series of adverse phenomena caused by too high input flow rate of the dialysate by a patient can be avoided, and the stability of the device in use can be improved.

2. When the device is used, in the process of twisting the rotary cylinder, stepless adjustment in the extrusion assembly can be realized through pairing of the shear head and the scales, so that the device can more accurately adjust the flow of later-stage dialysate.

Drawings

FIG. 1 is a schematic diagram of a preferred embodiment of a peritoneal dialysis flow controller according to the present utility model;

FIG. 2 is a schematic view of the connection of the extrusion assembly and the adjustment assembly of FIG. 1;

FIG. 3 is a schematic cross-sectional view of the adjustment assembly of FIG. 2;

FIG. 4 is a schematic view of the extrusion assembly of FIG. 2;

FIG. 5 is a schematic top view of the extrusion assembly of FIG. 1;

FIG. 6 is a schematic view of the transparent cover shown in FIG. 1;

fig. 7 is a schematic structural view of a cross section of the fixing case shown in fig. 1.

Reference numerals in the drawings: 1. a fixed case; 11. a rubber cylinder; 2. a transparent cover; 21. a scale; 3. an extrusion assembly; 31. a fixing ring; 311. a telescopic rod; 312. a spring; 32. an extrusion plate; 321. a guide piece; 4. an adjustment assembly; 41. a rotating cylinder; 411. arrows; 42. a holding cylinder; 43. a fixed rod; 44. and a compression ring.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Specific implementations of the utility model are described in detail below in connection with specific embodiments.

Referring to fig. 1 to 7, a peritoneal dialysis flow controller according to an embodiment of the present utility model includes: a fixed shell 1, a pressing assembly 3 and an adjusting assembly 4.

In the embodiment of the present utility model, referring to fig. 1, 2 and 3, the adjusting assembly 4 includes a rotating cylinder 41, the rotating cylinder 41 is sleeved under the outer wall of the fixed shell 1 through a threaded structure, a plurality of fixed rods 43 fixedly connected are disposed in the rotating cylinder 41, and a pressing ring 44 is disposed at the top of the fixed rods 43.

It should be noted that: in the later stage, the device can directly rotate on the fixed shell 1 through the rotating cylinder 41, so that the rotating cylinder 41 drives the inner extrusion ring 44 to move, the guide piece 321 in the extrusion assembly 3 can be smoothly extruded in the moving process of the extrusion ring 44 to drive the extrusion plate 32 to move, the extrusion plate 32 can smoothly extrude the outer wall of the inner dialysis tube, the end section of the dialysis tube can be changed, and the flow of later-stage dialysate is controlled;

and because the rotary cylinder 41 adopts the screw thread to place the cover and establish on the outer wall of the fixed shell 1, during the use through the extrusion of control rotary cylinder 41 to extrusion subassembly 3, when changing the end cross-section of dialysis pipe and carrying out the flow control of dislysate, through screw thread structure's auto-lock nature, can avoid being used for extruding the stripper plate 32 of dialysis pipe and appear not hard up moving, cause the end cross-section to change, and change the phenomenon of dislysate velocity of flow, and then can make the dislysate circulate in setting for the velocity of flow all the time, avoid the patient to be excessively fast because of the input flow of dislysate, initiate a series of adverse phenomena, and then can improve the stability when this device uses.

In the embodiment of the present utility model, referring to fig. 1, 2, 4 and 5, the pressing assembly 3 includes a fixing ring 31, and a plurality of pressing plates 32 are disposed inside the fixing ring 31, the fixing ring 31 is fixedly disposed on an inner wall of the fixing shell 1, a telescopic rod 311 and a spring 312 are respectively disposed between the fixing ring 31 and each pressing plate 32, a guiding plate 321 is fixedly connected to one side of each pressing plate 32 near the inner wall of the fixing ring 31, an outer wall of each guiding plate 321 abuts against and is slidably connected to an inner wall of the pressing ring 44, a bottom width of each guiding plate 321 is smaller than a top width, two ends of each spring 312 are respectively fixedly connected to an outer wall of the corresponding pressing plate 32 and an inner wall of the fixing ring 31, two ends of each telescopic rod 311 are respectively fixedly connected to an outer wall of the corresponding pressing plate 32 and an inner wall of the fixing ring 31, and each telescopic rod 311 is respectively located inside the corresponding spring 312.

It should be noted that: since the width of the bottom of the guiding plate 321 is smaller than the width of the top, the outer wall of the guiding plate 321 is an inclined slope with a wider upper part and a narrower lower part, and then when the extruding ring 44 is propped against the outer wall of the guiding plate 321, the extruding plate 32 of the outer wall can smoothly move along the horizontal direction along with the rising of the extruding ring 44;

the moving track of the extrusion plate 32 can be guided by the arrangement of the telescopic rod 311, so that the movement of the extrusion plate 32 is more stable;

meanwhile, when the extrusion ring 44 moves downwards to gradually reduce extrusion to the guide plate 321 through the spring 312, the spring 312 can drive the extrusion plate 32 to recover through the self shrinkage force, so that the extrusion plate 32 can be smoothly reset.

In the embodiment of the present utility model, referring to fig. 1, 3, 6 and 7, a fixed arrow 411 is disposed on the outer wall of the rotating cylinder 41, a communicating holding cylinder 42 is disposed at the bottom of the rotating cylinder 41, a communicating rubber cylinder 11 is disposed at the top of the fixed housing 1, a transparent cover 2 fixedly connected is sleeved under the outer wall of the fixed housing 1, the transparent cover 2 is sleeved outside the rotating cylinder 41, and a scale 21 is disposed on the outer wall of the transparent cover 2.

It should be noted that: through the arrangement of the transparent cover 2, people can clearly see the arrow 411 on the rotary cylinder 41, so that the adjustment state of the flow of the device can be conveniently known through the pairing of the arrow 411 and the scale 21 on the transparent cover 2;

after the dialysis tube is inserted into the device, the friction force between the rubber tube and the dialysis tube is reduced because the inner wall of the rubber tube 11 is the same as the outer wall of the dialysis tube, the extrusion plate 32 in the extrusion assembly 3 is completely unfolded and is not contacted with the dialysis tube, and the device has the phenomenon of random sliding on the dialysis tube;

through the arrangement of the holding cylinder 42, the rotating cylinder 41 can be controlled to rotate after the holding cylinder 42 is held in the later period, so that people can control the rotating cylinder 41 to rotate more conveniently.

The working principle of the peritoneal dialysis flow controller provided by the utility model is as follows:

in the later stage, when a person inserts a dialysis tube for tectorial membrane dialysis into the abdomen of a patient and inputs the dialysis liquid after connecting the dialysis tube with a medicine bag containing the dialysis liquid;

during use, the rotating cylinder 41 can be directly controlled to rotate on the fixed shell 1, and at the moment, the rotating cylinder 41 can smoothly extrude the guide plate 321 in the extrusion assembly 3 through the extrusion ring 44 at the temporal part, so that the plurality of extrusion plates 32 move towards the center direction of the fixed ring 31 to extrude the outer wall of the dialysis tube positioned in the fixed shell 1;

in the process, the arrow 411 on the outer wall of the rotary cylinder 41 can be matched with the scale 21 on the outer wall of the transparent cover 2, the extrusion degree of the extruding plate 32 on the dialysis tube can be accurately controlled, and the dialyzate flow can be smoothly changed by changing the end section of the dialysis tube.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. A peritoneal dialysis flow controller, comprising:

a fixed shell (1), an extrusion component (3) and an adjusting component (4);

the extrusion assembly (3) comprises a fixed ring (31), and a plurality of extrusion plates (32) are arranged in the fixed ring (31);

the adjusting component (4) comprises a rotating cylinder (41), the rotating cylinder (41) is sleeved below the outer wall of the fixed shell (1) through a threaded structure, a plurality of fixed rods (43) which are fixedly connected are arranged in the rotating cylinder (41), and a squeezing ring (44) is arranged at the top of each fixed rod (43).

2. Peritoneal dialysis flow controller according to claim 1, characterized in that the fixing ring (31) is fixedly arranged on the inner wall of the fixing shell (1), a telescopic rod (311) and a spring (312) are arranged between the fixing ring (31) and each extrusion plate (32), and a fixedly connected guide piece (321) is arranged on one side, close to the inner wall of the fixing ring (31), of each extrusion plate (32).

3. Peritoneal dialysis flow controller according to claim 2, characterized in that the outer wall of each guide piece (321) abuts against and is slidingly connected with the inner wall of the squeeze ring (44), and the width of the bottom of the guide piece (321) is smaller than the width of the top.

4. Peritoneal dialysis flow controller according to claim 2, characterized in that both ends of each spring (312) are fixedly connected with the outer wall of the corresponding squeeze plate (32) and the inner wall of the fixed ring (31), respectively, both ends of each telescopic rod (311) are fixedly connected with the outer wall of the corresponding squeeze plate (32) and the inner wall of the fixed ring (31), respectively, and each telescopic rod (311) is located inside the corresponding spring (312), respectively.

5. Peritoneal dialysis flow controller according to claim 1, characterized in that a fixed arrow (411) is provided on the outer wall of the rotating cartridge (41), and that a communicating grip cartridge (42) is provided at the bottom of the rotating cartridge (41).

6. Peritoneal dialysis flow controller according to claim 1, characterized in that the top of the fixed housing (1) is provided with a communicated rubber tube (11), and the lower part of the outer wall of the fixed housing (1) is sleeved with a fixedly connected transparent cover (2).

7. Peritoneal dialysis flow controller according to claim 6, characterized in that the transparent cover (2) is sleeved outside the rotating cylinder (41), and the outer wall of the transparent cover (2) is provided with graduations (21).