CN210250726U

CN210250726U - Replacement fluid injection tube for hemofiltration and hemodiafiltration treatment

Info

Publication number: CN210250726U
Application number: CN201920132494.7U
Authority: CN
Inventors: 苟晶绮
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-01-25
Filing date: 2019-01-25
Publication date: 2020-04-07
Anticipated expiration: 2029-01-25

Abstract

The utility model discloses a replacement liquid injection pipe that is used for blood filtration, hemodialysis to filter treatment, include: the device comprises a main pipeline, a branch pipeline I and a branch pipeline II, wherein one end of the main pipeline is connected with a replacement liquid outlet of the hemodialysis filter through a machine port, the other end of the main pipeline is respectively connected with the branch pipeline I and the branch pipeline II, the branch pipeline I is connected with an arterial kettle through an arterial kettle port, and the branch pipeline II is connected with a venous kettle through a venous kettle port; and the branch pipeline I and the branch pipeline II are both provided with clamping devices. The utility model is not only simple in structure, convenient to use, low in production cost can avoid frequently changing the problem of venous kettle port and arteria kettle port when blood filters treatment and hemodialysis filters treatment moreover, has both alleviateed the nurse's that hemodialysis work load, has simplified operation flow again.

Description

Replacement fluid injection tube for hemofiltration and hemodiafiltration treatment

Technical Field

The utility model discloses a belong to hemodialysis technical field, more specifically say so and relate to a replacement liquid injection tube that is used for hemofiltration, hemodialysis to filter treatment that says so.

Background

Uremia is a series of clinical symptoms caused by renal failure, glomerular filtration rate reduction and accumulation of in vivo metabolites, thousands of toxins with different molecular weights participate in the process of pathogenesis, and toxin molecules are divided into the following components according to the mass: small molecule toxins, medium molecule toxins and large molecule toxins. Hemodialysis treatment can effectively remove small molecular toxins, but the removal capacity of middle and large molecular toxins is almost zero. Since 1978, the hemodialysis filtration mode has been developed, which is a treatment mode with high toxin clearance (capable of effectively removing small and medium molecular toxins) and high dialysis sufficiency, and is widely applied to the substitution treatment of uremia patients, clinically, the biggest difference between hemodialysis filtration treatment and hemodialysis treatment is that ultrapure replacement fluid (with electrolyte as a component) generated by an online hemofilter of the hemodialysis filtration is directly injected into the blood of a patient, and the ultrapure replacement fluid and the toxin are removed by convection and dispersion together with a dialysis machine, according to the difference of positions between a replacement fluid infusion port and a dialyzer, the injection mode of the replacement fluid is divided into a front dilution method, a rear dilution method and a mixed dilution method, and no matter which replacement fluid injection method needs a connecting pipe to connect the replacement fluid with an extracorporeal circulation pipeline of the patient, and one end of the machine is connected with the outlet of the replacement fluid, one end of the tube is connected with a blood path tube (extracorporeal circulation blood path) of a patient, the traditional replacement fluid injection tubes are all single tubes and single heads, the front dilution method and the patient end are connected with an arterial pot (before a dialyzer) of extracorporeal circulation, the rear dilution method and the patient end are connected with a venous pot (after the dialyzer) of extracorporeal circulation, the two dilution methods have advantages and disadvantages respectively, and the advantages and the disadvantages of the front dilution method and the rear dilution method are as follows:

first, pre-dilution method: substitution fluid is injected before the dialyzer (arterial pot)

The advantages are that: blood is diluted before entering a filter, so the blood flow resistance is small, coagulation is not easy to occur in an extracorporeal circulation pipeline (a dialyzer and a blood path pipe), the residual blood volume of the dialyzer is small, protein membrane coverage is not easy to form, a hemodialysis machine is not easy to generate transmembrane pressure alarm, the machine alarm rate is low, the pump stopping probability of a blood pump is low, and the heparin usage of a patient is less. The disadvantages are as follows: because the replacement fluid is added in front of the dialyzer, the toxin clearance rate is low compared with that of a post-dilution method, the total amount of the replacement fluid is high, and the dialysis cost is increased

Second, post dilution method, the substitution fluid is injected after the dialyzer (venous pot)

The advantages are that: high toxin clearance rate, low total replacement fluid requirement and dialysis cost saving. The disadvantages are as follows: because of patient's whole blood can surpass unnecessary moisture and toxin in the blood behind the cerini dialyser cerini, so the blood that filters out from the cerini dialyser cerini is mostly concentrated, and blood flow resistance is big when the replacement liquid is injected into to the venous pot, and is high at treatment later stage hemofilter transmembrane pressure alarm rate, and blood pump shut down probability is high, easily takes place the coagulation of external circulation pipeline, and the cerini dialyser cerini easily generates the protein membrane, and treatment later stage toxin clears away efficiency and descends, and the heparin use amount is big.

Mixing and diluting method: the replacement liquid is simultaneously injected into the front and the back of the dialyzer (arterial pot and venous pot)

The advantages are that: compared with the former dilution method and the latter dilution method, the mixed dilution method improves the toxin clearance rate and the dialysis sufficiency, and improves the survival rate of uremia patients. Effectively reduces the dosage of heparin and avoids the occurrence of related complications. The machine alarm frequency in the hemodialysis filtration treatment is reduced, the times of nurses for eliminating alarms are reduced, and the labor is saved. The amount of the displacement liquid is reduced, the cost is reduced, and the medical expense is saved. The dialyzer has the advantages of improving the service life, preventing the extracorporeal circulation pipeline from clotting blood easily, and avoiding the blood loss of the hemodialysis patient caused by clotting blood. The disadvantages are as follows: the operation is complicated, nurses need to frequently replace the interface of a patient end in treatment, move the interface from an arterial pot to a venous pot or from the venous pot to the arterial pot, achieve the aim of mixing and diluting in a manual mode, and recalculate the injection amount of the replacement liquid according to the movement of the port, which also becomes a main reason for limiting the development of the mixing and diluting method clinically.

Therefore, how to provide a replacement fluid infusion tube for hemofiltration and hemodiafiltration treatment is a problem that needs to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a replacement liquid injection tube for hemofiltration, hemodiafiltration treatment, simple structure not only, convenient to use, low in production cost can avoid moreover when hemofiltration and hemodiafiltration treatment, frequently change the problem of venous pot port and arteria pot port, has both alleviateed hemodialysis nurse's work load, has simplified operation flow again.

In order to achieve the above purpose, the utility model discloses an adopt following technical scheme:

a substitution infusion tube for hemofiltration, hemodiafiltration treatment, comprising: the device comprises a main pipeline, a branch pipeline I and a branch pipeline II, wherein one end of the main pipeline is connected with a replacement liquid machine through a machine port, the other end of the main pipeline is respectively connected with the branch pipeline I and the branch pipeline II, the branch pipeline I is connected with an arterial kettle through an arterial kettle port, and the branch pipeline II is connected with a venous kettle through a venous kettle port.

Preferably, the main pipeline, the branch pipeline I and the branch pipeline II form a Y-shaped structure, and the venous pot and the arterial pot at the machine end of the replacement liquid and the patient end can be simultaneously connected.

Preferably, the main pipeline is provided with a blood pump pipe, and the blood pump pipe with different inner diameters is arranged, so that the blood pump device is suitable for different crowds.

Preferably, the branch pipeline I and the branch pipeline II are both provided with clamping devices, the branch pipeline I and the branch pipeline II can be blocked and conducted through the clamping devices, and the adjustment is convenient.

Preferably, the clamping device comprises a fixing part and a clamping part, one end of the fixing part is connected with the clamping part, the other end of the fixing part is provided with a clamping block clamped with the clamping part, and the fixing part and the inner wall of the clamping part are symmetrically provided with bulges. Pressing the clamping part, making clamping part and fixture block joint, then dividing pipeline one or dividing pipeline two and blocking, loosening the clamping part, then dividing pipeline one or dividing pipeline two and switching on, convenient regulation, the one hand can conveniently be operated.

Preferably, the fixing part is provided with a through hole penetrating the branch pipeline I or the branch pipeline II, and when the branch pipeline I or the branch pipeline II is blocked or conducted, the branch pipeline I or the branch pipeline II does not need to be separated from the clamping device, so that the operation is convenient, and the time is saved.

Preferably, the position of the protrusion of the fixing part corresponding to the protrusion of the clamping part is designed to be in a circular arc shape. The arc-shaped design of the corresponding positions of the two bulges can avoid damage to the branch pipeline I and the branch pipeline II when the clamping device clamps.

The utility model discloses a beneficial effect lies in:

the utility model discloses a main line is linked to each other with branch pipeline one, branch pipeline two, can be with hemodialysis filter replacement liquid export with the venous kettle of patient end, the arterial kettle three is connected simultaneously, set up moderate replacement liquid total amount, just so can avoid hemofiltration and hemodialysis filtration treatment often, the nurse frequently changes the problem of venous kettle port, arterial kettle port, both alleviateed the nurse's work load of hemodialysis, simplified operation flow, can avoid simultaneously because when changing the port, cause patient's blood liquid drop to spill, the problem of polluting the treatment environment produces, can also reduce hemodialysis patient's blood and lose; the blocking and the conduction of the branch pipeline I and the branch pipeline II can be realized through the clamping device, and the adjustment is convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

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

Fig. 2 is a schematic structural diagram of the clamping device of the present invention.

Wherein, in the figure,

1-a main pipeline; 2-branch pipeline one; 3-branch pipeline two; 4-machine port; 5-arterial pot port; 6-venous pot port; 7-blood pump pipe; 8-a clamping device; 9-a fixed part; 10-a clamping part; 11-a fixture block; 12-a bump; 13-through hole.

Detailed Description

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

Referring to fig. 1-2, the present invention provides a replacement fluid infusion tube for hemofiltration and hemodiafiltration treatments, comprising: the device comprises a main pipeline 1, a branch pipeline I2 and a branch pipeline II 3, wherein one end of the main pipeline 1 is connected with a replacement liquid outlet of the hemodialysis filter through a machine port 4, the other end of the main pipeline is respectively connected with the branch pipeline I2 and the branch pipeline II 3, the branch pipeline I2 is connected with an arterial kettle through an arterial kettle port 5, and the branch pipeline II 3 is connected with the venous kettle through a venous kettle port 6.

In another embodiment, the main pipeline 1, the branch pipeline one 2 and the branch pipeline two 3 form a Y-shaped structure, and the replacement fluid outlet of the hemodialysis filter can be simultaneously connected with the venous pot and the arterial pot at the patient end.

In another embodiment, a blood pump pipe 7 is arranged on the main pipeline 1, and the blood pump pipe 7 with different inner diameters is arranged, so that the device can adapt to different crowds.

In another embodiment, the branch pipelines one 2 and two 3 are both provided with the clamping devices 8, and the branch pipelines one 2 and two 3 can be blocked and conducted through the clamping devices 8, so that the adjustment is convenient.

The clamping device 8 comprises a fixing portion 9 and a clamping portion 10, the fixing portion 9 and the clamping portion 10 are integrally formed, one end of the fixing portion 9 is connected with the clamping portion 10, a clamping block 11 clamped with the clamping portion 10 is arranged at the other end of the fixing portion 9, and protrusions 12 are symmetrically arranged on the inner walls of the fixing portion 9 and the clamping portion 10. Pressing clamping part 10, making clamping part 10 and fixture block 11 joint, then dividing pipeline one 2 or dividing pipeline two 3 and blocking, loosening clamping part 10, then dividing pipeline one 2 or dividing pipeline two 3 and switching on, convenient regulation, the one hand can conveniently be operated.

In another embodiment, the fixing portion 9 is provided with a through hole 13 for inserting the branch pipeline one 2 or the branch pipeline two 3, and when the branch pipeline one 2 or the branch pipeline two 3 is blocked or conducted, the branch pipeline one 2 or the branch pipeline two 3 does not need to be separated from the clamping device 8, so that the operation is convenient, and the time is saved.

In another embodiment, the protrusions 12 of the fixing portion 9 and the protrusions 12 of the clamping portion 10 are designed to have circular arc structures at corresponding positions. The arc design of the corresponding positions of the two bulges 12 can avoid damage to the first branch pipeline 2 and the second branch pipeline 3 when the clamping device 8 clamps.

In another embodiment, the machine port 4, the arterial port 5 and the venous port 6 are provided with movable threaded caps, and after butt joint, the threaded caps are pushed forward and then screwed, so that the problem of disconnection at the joints is avoided.

The utility model discloses a main line 1 links to each other with branch pipeline one 2, branch pipeline two 3, can be connected hemodialysis filter replacement liquid export and patient's end venous kettle, the arterial kettle three simultaneously, set up moderate replacement liquid total amount, just so can avoid when hemodialysis filters, the nurse frequently changes the problem of venous kettle port 5, arterial kettle port 6, both alleviateed the nurse's that hemodialysis is passed through work load, simplified the operation procedure again, can avoid simultaneously because when changing the port, cause patient's blood liquid to spill, the production of pollution treatment environmental problem can also reduce hemodialysis patient's blood and lose; the blocking and the conduction of the branch pipeline I2 and the branch pipeline II 3 can be realized through the clamping device 8, and the adjustment is convenient.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A substitution infusion tube for hemofiltration and hemodiafiltration treatments, comprising: the device comprises a main pipeline, a branch pipeline I and a branch pipeline II, wherein one end of the main pipeline is connected with a replacement liquid outlet of the hemodialysis filter through a machine port, the other end of the main pipeline is respectively connected with the branch pipeline I and the branch pipeline II, the branch pipeline I is connected with an arterial kettle through an arterial kettle port, and the branch pipeline II is connected with a venous kettle through a venous kettle port; the machine port, the arterial pot port and the venous pot port are all provided with movable threaded caps; blood pump pipes with different inner diameters are arranged on the main pipeline so as to adapt to different crowds; clamping devices are arranged on the branch pipeline I and the branch pipeline II; the clamping device comprises a fixing part and a clamping part, one end of the fixing part is connected with the clamping part, a clamping block clamped with the clamping part is arranged at the other end of the fixing part, and bulges are symmetrically arranged on the inner walls of the fixing part and the clamping part; the bulge of the fixing part and the bulge of the clamping part are designed to be in an arc-shaped structure at the corresponding positions.

2. The substitution fluid infusion tube for hemofiltration and hemodiafiltration treatment according to claim 1, wherein the main line, the first branch line and the second branch line form a "Y" shaped structure.

3. The substitution fluid infusion tube for hemofiltration and hemodiafiltration treatment according to claim 1, wherein the fixing portion is provided with a through hole through which the branch tube one or the branch tube two is inserted.