CN219579538U

CN219579538U - Venous kettle with piston

Info

Publication number: CN219579538U
Application number: CN202320425522.0U
Authority: CN
Inventors: 徐纬师; 刘彦琴; 廖静; 陈诗梅
Original assignee: Hezhou People's Hospital
Current assignee: Hezhou People's Hospital
Priority date: 2023-03-09
Filing date: 2023-03-09
Publication date: 2023-08-25
Anticipated expiration: 2033-03-09

Abstract

The utility model discloses a venous pot with a piston, which comprises a venous pot, wherein a preliminary filtering structure is arranged at the bottom of the venous pot, a secondary filtering structure is arranged at the upper end of the venous pot, a dialysis structure is arranged at the outer side of the upper end of the venous pot, the lower end of the venous pot is connected with a blood outlet pipe, the preliminary filtering structure comprises a conical leakage net, the conical leakage net is fixed at the bottom end of the venous pot, the secondary filtering structure comprises a hose, a drawing rod is slidably arranged in the hose, the upper end of the drawing rod is fixedly connected with a drawing cap, the lower end of the drawing rod is fixedly connected with a screen, and the outer side of the screen is fixedly connected with an annular side wall.

Description

Venous kettle with piston

Technical Field

The utility model relates to the technical field of blood transfusion equipment, in particular to a venous kettle with a piston.

Background

The uremic patient is subjected to hemodialysis for 2-3 times per week, the hemodialysis needs to be performed on an extracorporeal circulation blood tube, a venous pot in the existing blood tube is provided with a filter screen, blood clots can be filtered to enter the patient to a certain extent, when the venous pot is coagulated, the blood clots fall to the filter screen to block the filter screen, the blood cannot pass through the venous pot, finally, the blood of a circulation pipeline and a dialyzer cannot return to the patient and is discarded, and then, the treatment is forced to be stopped or a new blood tube and a dialyzer are replaced, so that a great amount of blood of the patient is lost, and the life health of the patient is threatened.

Accordingly, there is a need to provide a venous pitcher having a plunger that addresses the above-described issues.

Disclosure of Invention

The utility model aims to provide a venous kettle with a piston, which solves the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the venous pot with the piston comprises a venous pot, a primary filtering structure is arranged at the bottom of the venous pot, a secondary filtering structure is arranged at the upper end of the venous pot, a dialysis structure is arranged outside the upper end of the venous pot, and the lower end of the venous pot is connected with a blood outlet pipe.

Preferably, the primary filtering structure comprises a conical screen fixed at the bottom end of the venous kettle.

Preferably, the secondary filtering structure comprises a hose, a pull rod is contacted at the turned-in part of the hose, the upper end of the pull rod is fixedly connected with a pull cap, the lower end of the pull rod is fixedly connected with a screen, one end of the hose is fixedly connected with the upper end of the venous kettle, the other end of the hose is fixedly connected with the screen, the outer side of the screen is fixedly connected with an annular side wall, and the annular side wall slides on the inner wall of the venous kettle.

Preferably, the dialysis structure comprises a first branch pipe, a second branch pipe and a third branch pipe, and the first branch pipe, the second branch pipe and the third branch pipe are uniformly fixed at one side, close to the hose, of the upper end of the venous kettle.

Preferably, the hose has high elasticity.

Preferably, the first branch pipe is communicated with the venous kettle in a tangential mode, and the inlet end is higher than the outlet end.

Preferably, the size of the holes of the cone-shaped leakage net and the screen is smaller than the size of the blood clot.

Preferably, the annular side wall is rubber.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model is improved on the original venous kettle, and when the venous kettle coagulates, the blood clot blocked on the filter screen can be pumped to the top, so that the situation that the blood cannot return due to the blocking of the filter screen by the blood clot is solved, the purposes of no loss of extracorporeal circulation blood and smooth dialysis are achieved, and the life health of a patient is protected.

Drawings

FIG. 1 is a schematic view of the primary structure of a venous pitcher having a plunger according to the present utility model from a first perspective;

FIG. 2 is a top view of a venous pitcher having a plunger of the present utility model;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is an enlarged view of a portion of FIG. 3 at B;

FIG. 5 is an enlarged view of a portion of FIG. 3 at C;

FIG. 6 is an enlarged view of a portion of FIG. 3 at C;

fig. 7 is a schematic view showing the main structure of a screen of a venous pitcher having a plunger according to the present utility model.

In the figure: 1. venous kettle, 2, first branch pipe, 3, second branch pipe, 4, third branch pipe, 5, hose, 6, pull rod, 7, pull cap, 8, the hemorrhage tube, 9, toper leak net, 10, annular lateral wall, 11, screen cloth.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-7, the present utility model provides a technical solution: the utility model provides a venous kettle with piston, includes venous kettle 1, and the bottom of venous kettle 1 is equipped with primary filtration, and the upper end of venous kettle 1 is equipped with secondary filtration, and the upper end outside of venous kettle 1 is equipped with dialysis structure, and the lower extreme of venous kettle 1 is connected and is led to vascular 8.

The primary filtering structure comprises a conical leakage net 9, and the conical leakage net 9 is fixed at the bottom end of the venous kettle 1.

The secondary filtering structure comprises a hose 5, a pull rod 6 is contacted with the turned-in part of the hose 5, the upper end of the pull rod 6 is fixedly connected with a pull cap 7, the lower end of the pull rod 6 is fixedly connected with a screen 11, one end of the hose 5 is fixedly connected with the upper end of the venous kettle 1, the other end of the hose 5 is fixedly connected with the screen 11, the inner cavity of the venous kettle 1 is isolated from the outside, blood is prevented from being polluted by air, the annular side wall 10 is fixedly connected with the outer side of the screen 11, the annular side wall 10 slides on the inner wall of the venous kettle 1, the pull rod 6 is manually pulled to move upwards, the pull rod 6 moves upwards to drive the screen 11 and the annular side wall 10 to move upwards, the screen 11 and the annular side wall 10 move upwards to drive a blood coagulation block to move upwards to the upper end of the dialysis structure, and the pull rod 6 is stagnated at the upper end of the dialysis structure due to the conical shape of the hose 5 and the turned-in design.

The dialysis structure comprises a first branch pipe 2, a second branch pipe 3 and a third branch pipe 4, wherein the first branch pipe 2, the second branch pipe 3 and the third branch pipe 4 are uniformly fixed on one side, close to a hose 5, of the upper end of a venous kettle 1, the first branch pipe 2 is a main pipeline blood inlet end, the second branch pipe 3 is an exhaust and dosing end, the third branch pipe 4 is a pressure detection end, and the pressure detection end is connected with a hemodialysis machine.

The hose 5 has high elasticity and can realize the function of secondary filtering structure

The first branch pipe 2 is communicated with the venous pot 1 in a tangential mode, the inlet end is higher than the outlet end, and vortex phenomenon can occur when blood enters the venous pot 1, so that the blood can flow into the bottom along the wall of the venous pot 1, and the inflow of the blood is facilitated.

The sizes of the holes of the conical leakage net 9 and the screen mesh 11 are smaller than the size of blood clots, which is beneficial to anticoagulation in the venous kettle 1 and protects the life and health of patients.

The annular side wall 10 is made of rubber, and can be tightly attached to the inner wall of the venous kettle 1 to prevent the clot from escaping from the crack, so that the condition of insufficient filtration is caused.

The working principle of the utility model is as follows:

when medical staff observes that there is the blood coagulation on the screen cloth 11 in the venous kettle 1, can manually pull rod 6 upwards to move, and pull rod 6 upwards moves and drives screen cloth 11 and annular lateral wall 10 upwards to move, and screen cloth 11 and annular lateral wall 10 upwards move and can drive the blood coagulation piece upwards to move to the upper end of dialysis structure, because the design of the high elasticity and the varus of hose 5 can make pull rod 6 stagnate in the upper end of dialysis structure to the blood after being filtered can flow into the patient from the hemorrhage tube 8, realizes hemodialysis, accomplishes the function of whole venous kettle with piston from this.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A venous pitcher with a plunger, comprising a venous pitcher (1), characterized by: the bottom of vein kettle (1) is equipped with preliminary filtration structure, the upper end of vein kettle (1) is equipped with secondary filtration structure, the upper end outside of vein kettle (1) is equipped with dialysis structure, the lower extreme of vein kettle (1) is connected out blood vessel (8).

2. A venous kettle with a piston as claimed in claim 1, wherein: the preliminary filtering structure comprises a conical leakage net (9), and the conical leakage net (9) is fixed at the bottom end of the venous kettle (1).

3. A venous kettle with a piston as claimed in claim 1, wherein: the secondary filtering structure comprises a hose (5), a pull rod (6) is contacted at the inversion part of the hose (5), a pull cap (7) is fixedly connected to the upper end of the pull rod (6), a screen (11) is fixedly connected to the lower end of the pull rod (6), one end of the hose (5) is fixedly connected with the upper end of the venous kettle (1), the other end of the hose is fixedly connected with the screen (11), an annular side wall (10) is fixedly connected to the outer side of the screen (11), and the annular side wall (10) slides on the inner wall of the venous kettle (1).

4. A venous kettle with a piston as claimed in claim 1, wherein: the dialysis structure comprises a first branch pipe (2), a second branch pipe (3) and a third branch pipe (4), wherein the first branch pipe (2), the second branch pipe (3) and the third branch pipe (4) are uniformly fixed at one side, close to a hose (5), of the upper end of the venous kettle (1).

5. A venous kettle with a piston as claimed in claim 4, wherein: the hose (5) has a high elasticity.

6. A venous kettle with a piston as claimed in claim 4, wherein: the first branch pipe (2) is communicated with the venous kettle (1) in a tangential mode, and the inlet end is higher than the outlet end.

7. A venous kettle with a piston as claimed in claim 2, wherein: the size of the holes of the conical leakage net (9) and the screen (11) is smaller than the size of blood clots.

8. A venous kettle with a piston as claimed in claim 3, wherein: the annular side wall (10) is made of rubber.