CN215274899U

CN215274899U - Novel venous return pipe with spare pipeline for hemodialysis

Info

Publication number: CN215274899U
Application number: CN202121379597.7U
Authority: CN
Inventors: 李毅; 张小虎
Original assignee: First Peoples Hospital of Nanning
Current assignee: First Peoples Hospital of Nanning
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2021-12-24
Anticipated expiration: 2031-06-21

Abstract

The utility model discloses a novel venous loop pipe with a spare pipeline for hemodialysis, which comprises a main loop pipe and a spare loop pipe, wherein a main venous pot is arranged on the main loop pipe; the upper end and the lower end of the main venous pot are respectively provided with a main liquid inlet pipe and a main liquid outlet pipe, the main liquid inlet pipe is provided with a side liquid inlet pipe, and the tail end of the side liquid inlet pipe is provided with a connector; the standby loop pipe is provided with a standby venous pot, and the upper end and the lower end of the standby venous pot are respectively provided with a standby liquid inlet pipe and a standby liquid outlet pipe; a luer joint which can be connected with the interface is arranged at the tail end of the standby liquid inlet pipe; the internal structures of the main vein pot and the standby vein pot are the same. The utility model discloses a reserve return circuit pipe simple structure has reduced among the former dress vein pipeline that the blood clotting of venous kettle leads to the unable feedback of blood to lead to the production of blood phenomenon of losing, has promoted operating personnel's of being convenient for operation and patient's treatment and has good practicality.

Description

Novel venous return pipe with spare pipeline for hemodialysis

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to novel venous return pipe is used in hemodialysis with spare pipeline.

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.

In clinical work, patients undergoing hemodialysis treatment for hemorrhagic or high-risk hemorrhage often undergo dialysis using heparin-free anticoagulation technology. In 2-3 hours of hemodialysis treatment carried out under the condition of heparin-free anticoagulation, blood led out from the body is easy to form a thrombus to block a pipeline in an extracorporeal blood circulation loop pipeline. Therefore, clinical medical staff need block up the pipeline before blood agglutinates, the quick replacement venous return line pipe to guarantee going on smoothly of follow-up hemodialysis, also avoided the patient to cause the loss of a large amount of blood because of thrombosis.

The filter screen is arranged in the venous pot in the venous loop pipeline, so that the probability of the coagulation phenomenon is relatively high, once the coagulation phenomenon occurs, the filter screen is blocked, and the blood is prevented from flowing back to the body of a patient, so that the termination of hemodialysis is caused, the treatment target is influenced, and the economic pressure born by the patient is increased due to the replacement of a blood pipeline and a dialyzer; therefore, a device is needed that can effectively perform a timely treatment when a blood coagulation occurs in a venous circuit line.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art, the utility model provides a hemodialysis is with novel venous return line pipe with spare pipeline.

In order to achieve the above object, the utility model provides a following technical scheme:

a novel venous return pipe with a standby pipeline for hemodialysis comprises a main return pipe and a standby return pipe, wherein a main venous pot is arranged on the main return pipe; the upper end and the lower end of the main venous pot are respectively provided with a main liquid inlet pipe and a main liquid outlet pipe, the main liquid inlet pipe is provided with a side liquid inlet pipe, and the tail end of the side liquid inlet pipe is provided with a connector;

the standby loop pipe is provided with a standby venous pot, and the upper end and the lower end of the standby venous pot are respectively provided with a standby liquid inlet pipe and a standby liquid outlet pipe; a luer joint which can be connected with the interface is arranged at the tail end of the standby liquid inlet pipe;

the main venous pot and the standby venous pot have the same internal structure and are both the existing conventional venous pot structure,

or the internal structures of the main venous pot and the standby venous pot are the same, a plurality of groups of filter screens are arranged in each of the 2 venous pots, the filter screens are horizontally staggered on the inner wall of the venous pot along the axial direction of the venous pot, and a liquid passing channel is reserved between each group of filter screens and the inner wall of the venous pot; the filter screen is zigzag, still is equipped with the interception net at the filter screen end.

Preferably, venous pressure monitoring pipes are arranged at the tops of the main venous pot and the standby venous pot, and sensor protection covers are arranged at the tail ends of the venous pressure monitoring pipes.

Preferably, the outer walls of the main vein pot and the standby vein pot are provided with scale marks.

Preferably, the number of the filter screens in the main vein pot and the standby vein pot is at least 3 groups respectively.

Preferably, the interface and the luer connector are both provided with protective caps for sealing.

Preferably, the top of the standby intravenous pot is further connected with a pre-flushing saline bag through a standby intravenous fluid infusion tube, and when the pre-flushing function is not used, a sealed protective cap is arranged on the fluid infusion tube.

Preferably, the interception net is provided with a spring on one side far away from the filter screen, and the free end of the spring is abutted against the inner wall of the venous pot.

Preferably, a main vein fluid infusion tube is arranged at the top of the main vein kettle, and a protective cap is arranged at the tail end of the main vein fluid infusion tube.

Preferably, each communicating pipeline is provided with a switch clamp.

Preferably, the luer connector can be connected with an infusion apparatus through an external connecting connector, the other end of the infusion apparatus is connected with another pre-flushing physiological saline bag, and a protective cap is arranged on the luer connector when the luer connector is not required to be connected with the pre-flushing physiological saline bag.

The utility model discloses owing to adopted above-mentioned technical scheme, possess following beneficial effect:

1. the utility model improves the vein loop system on the common hemodialysis machine, and a side liquid inlet pipe is arranged on the main liquid inlet pipe; in addition, a standby tube of the venous loop is arranged, when the blood of the original venous loop cannot be returned due to blood coagulation, the standby venous fluid infusion tube is connected with the physiological saline for pre-flushing, and then the luer connector of the standby fluid inlet tube is connected to the interface of the side fluid inlet tube to serve as an emergency venous loop tube so as to realize that the hemodialysis operation can still be carried out when the blood coagulation condition occurs.

2. The utility model discloses a set up the filter screen and the interception net of cockscomb structure in the vein kettle, can increase filter area to the setting of cockscomb structure can form the inclined plane on the filter screen and block, makes the impurity that filters down hold back on the filter screen more easily, and the impurity of avoiding holding back is washed away and is got into the drain pipe. The filter screens which are distributed in a staggered way can ensure that the filter screens are fully contacted with blood and fully retain impurities.

Therefore, the utility model discloses simple structure has reduced the blood coagulation of venous pot and has leaded to the unable feedback of blood to lead to the production of blood phenomenon of losing, has both promoted the operation and the patient treatment use of being convenient for operating personnel, has also promoted the functional of venous pot simultaneously, provides reliable and stable's preflush pipeline in order to realize having good practicality to the pipeline preflush operation before hemodialysis simultaneously.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the internal structure of the standby intravenous pot in embodiment 2.

Fig. 3 is a schematic view of the internal structure of the standby intravenous pot in embodiment 3.

In the drawings: 1-main liquid inlet pipe, 2-main venous pot, 3-main liquid outlet pipe, 4-side liquid inlet pipe, 5-standby venous pot, 6-connector, 7-filter screen, 8-liquid passing channel, 9-interception net, 10-graduation line, 11-switch clamp, 12-spring, 13-pre-flushing physiological saline bag, 14-luer connector, 15-standby liquid inlet pipe, 16-standby liquid outlet pipe, 17-venous pressure monitoring pipe, 18-sensor protective cover, 19-protective cover, 20-standby venous liquid supplementing pipe and 21-main venous liquid supplementing pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and by referring to preferred embodiments. It should be understood, however, that the numerous specific details set forth in the specification are merely set forth to provide a thorough understanding of one or more aspects of the present invention, which may be practiced without these specific details.

Example 1

As shown in fig. 1, the utility model provides a venous return line pipe with a spare pipeline for hemodialysis, which comprises a main return line pipe and a spare return line pipe.

A main vein pot 2 is arranged on the main loop pipe; the upper and lower both ends of main vein kettle 2 are equipped with main feed liquor pipe 1 and main drain pipe 3 respectively, are equipped with side feed pipe 4 on main feed liquor pipe 1, and the end of side feed pipe 4 is equipped with interface 6.

The standby loop pipe is provided with a standby vein pot 5, and the upper end and the lower end of the standby vein pot 5 are respectively provided with a standby liquid inlet pipe 15 and a standby liquid outlet pipe 16; a luer 14 which can be connected with the interface 6 is arranged at the end of the spare liquid inlet pipe 15. When the luer 14 is not in communication with the hub 6, the ends of the hub 6 and the luer 14 are sealed by a protective cap 19.

The outer walls of the main vein pot 2 and the standby vein pot 5 are provided with scale marks 10, the tops of the main vein pot and the standby vein pot are provided with vein pressure monitoring pipes 17, and the tail ends of the vein pressure monitoring pipes 17 are provided with sensor protection covers 18. The top of the main vein pot 2 is provided with a main vein infusion tube 21, and the tail end of the main vein infusion tube 21 is provided with a protective cap 19. The top of the standby vein pot 5 is also connected with a pre-flushing normal saline bag 13 through a standby vein infusion tube 20, and when the pre-flushing function is not used, a sealed protective cap 19 is arranged on the standby vein infusion tube 20. And a switch clamp 11 is also arranged on each communication pipeline.

The main vein pot 2 and the standby vein pot 5 have the same internal structure and are both of the existing conventional vein pot structure.

When in use, the utility model discloses a main loop pipe presss from both sides the switch clamp 11 on the side feed pipe 4 after the side feed pipe 4 is full of liquid according to the mounting method and the preflush method of ordinary hemodialysis pipeline, can dialyse.

When a blood coagulation condition occurs, the switch clamp 11 of the venous pressure monitoring tube 17 of the standby loop tube is clamped, the switch clamp 11 of the standby vein infusion tube 20 is opened, the pre-flushing physiological saline bag 13 pre-flushes the standby vein pot 5, the standby vein pot 5 is inverted, the switch clamp 11 of the standby vein infusion tube is clamped when the liquid is filled in the standby liquid inlet tube 15, the standby vein pot 5 is hung and kept in a vertical or basically vertical state after the liquid level of the standby vein pot 5 rises to the uppermost scale mark 10, the switch clamp 11 of the standby vein infusion tube 20 is clamped when the liquid is filled in the standby liquid outlet tube 16, the switch clamp 11 of the standby vein infusion tube 20 is clamped, the luer connector 14 at the starting end of the standby liquid inlet tube 15 is connected with the interface 6 of the main loop tube, then the standby liquid outlet tube 16 of the standby loop tube is connected into a blood vessel of a patient, and the switch clamps 11 at two ends of the standby vein pot 5 are opened for dialysis operation.

Example 2

As shown in fig. 2, the present embodiment is different from embodiment 1 in that 3 sets of filter screens 7 are arranged inside each 2 venous kettles, the 3 sets of filter screens 7 are horizontally staggered on the inner wall of each venous kettle along the axial direction of the venous kettle, and a liquid passing channel 8 is left between each set of filter screens 7 and the inner wall of the venous kettle; the filter screen 7 is arranged in a zigzag manner, and the tail end of the filter screen 7 is also provided with an intercepting screen 9.

During dialysis, the filter screen 7 and the interception net 9 which are arranged in the vein pot are serrated, so that the filtering area can be increased, and the filter screen 7 can be blocked by an inclined plane due to the serrated arrangement, so that the filtered impurities are easier to intercept on the filter screen 7, and the intercepted impurities are prevented from being washed away to enter the liquid outlet end. 3 groups of filter screens 7 which are distributed in a staggered way can ensure that the filter screens 7 are fully contacted with blood and fully retain impurities.

Example 3

As shown in fig. 3, the present embodiment is different from embodiment 2 in that a spring 12 is further disposed on a side of the intercepting net 9 away from the filtering net 7, and a free end of the spring 12 abuts against an inner wall of the venous pot. The spring 12 is abutted against the inner wall of the venous pot, so that the structural stability of the filter screen 7 can be further improved.

The luer connector 14 can be connected with an infusion apparatus through an external connecting connector, the other end of the infusion apparatus is connected with another pre-flushing physiological saline bag 13, and a standby loop pipe is connected with the pre-flushing physiological saline bag 13 from the direction of a standby liquid inlet pipe 15 when necessary.

All embodiments of the present disclosure, where not described in detail, are identical to or can be implemented using existing technology.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A novel venous return pipe with a standby pipeline for hemodialysis comprises a main return pipe and a standby return pipe, and is characterized in that a main venous pot is arranged on the main return pipe; the upper end and the lower end of the main venous pot are respectively provided with a main liquid inlet pipe and a main liquid outlet pipe, the main liquid inlet pipe is provided with a side liquid inlet pipe, and the tail end of the side liquid inlet pipe is provided with a connector;

alternatively, the first and second electrodes may be,

a plurality of groups of filter screens are arranged in each of the 2 venous kettles, the filter screens are horizontally staggered on the inner wall of each venous kettle along the axial direction of the venous kettle, and a liquid passing channel is reserved between each group of filter screens and the inner wall of each venous kettle; the filter screen is zigzag, still is equipped with the interception net at the filter screen end.

2. The venous loop pipe with the spare line for hemodialysis of claim 1, wherein the top of each of the main venous pot and the spare venous pot is provided with a venous pressure monitoring pipe, and the end of the venous pressure monitoring pipe is provided with a sensor protection cover.

3. The venous return line for hemodialysis of claim 1, wherein the outer walls of the main venous pot and the reserve venous pot are provided with graduation marks.

4. The venous return line for hemodialysis of claim 1, wherein the number of the filter nets in the main venous pot and the standby venous pot is at least 3 groups, respectively.

5. The venous return line for hemodialysis of claim 1, wherein the hub and the luer are provided with a sealing cap.

6. The venous return line for hemodialysis of claim 1, wherein the top of the venous refill is further connected with a pre-filled saline bag through a venous refill tube.

7. The venous return line for hemodialysis with a backup line according to claim 1, wherein a spring is further provided on the side of the interception net away from the filter screen, and the free end of the spring abuts against the inner wall of the venous pot.

8. The venous return line for hemodialysis with a backup line according to claim 1, wherein the main venous pot is provided with a main venous feeding tube on the top and a protective cap at the end of the main venous feeding tube.

9. The venous return line for hemodialysis of claim 1, wherein a switch clamp is provided on each communicating line.