CN109381760B - Connecting pipe - Google Patents

Abstract

The invention relates to the technical field of connecting pipes, in particular to a connecting pipe which comprises a hollow cylindrical injector connecting pipe, wherein the liquid outlet end of the injector connecting pipe is connected with a connecting block, a cavity is arranged inside the connecting block, the injector connecting pipe is communicated with the cavity, the bottom surface of the injector connecting pipe is also provided with a dialysis circulating pipe and a dialyzer threaded pipe, and the walls of the dialysis circulating pipe and the dialyzer threaded pipe are respectively provided with a flap. The invention realizes that the blood clot filter screen intercepts the blood clot with any size through the valve and the blood clot filter screen, prevents the blood clot from entering a dialyzer or a pipeline, ensures that the valve is unfolded when the dialysis circulating pipe and the threaded pipe of the dialyzer suck pressure to the injector, is convenient for the blood clot in the dialyzer or the pipeline to be rapidly pumped out, and solves the problem of unsafe hidden danger of thrombus caused by the fact that the blood mixed with the blood clot is very easy to be transfused to a patient once the extracorporeal circulation generates the blood coagulation.

Description

Connecting pipe

Technical Field

The invention relates to the technical field of connecting pipes, in particular to a connecting pipe.

Background

In the process of blood purification treatment, due to various reasons, the blood pump stops rotating frequently or for a long time, II-III-grade blood coagulation can occur in a dialyzer and/or a dialysis pipeline, and finally blood cannot be returned to the machine; or after the blood coagulation dialyzer and/or dialysis line is discarded, a new set of dialysis line and/or dialyzer is replaced to be used for the treatment on the machine again. The treatment can cause blood loss and anemia aggravation of patients, influence the treatment effect of the patients, and increase the treatment expense, the contradiction between patient care and the waste of medical resources.

The dialysis pipeline used clinically at present only has the functions of air exhaust, intravenous administration and the like in structure and function, once the extracorporeal circulation generates blood coagulation, a local blood clot cannot be pumped out from the extracorporeal circulation to return the blood to a patient, and the common injector cannot be tightly connected with a port of a dialyzer or a port of a dialysis pipeline, so that the blood cannot be pumped smoothly and returned to the patient; even if the injector can draw blood, the injector can not filter out fine blood clots, and the blood mixed with the fine blood clots can be easily returned to a patient in an emergency operation, so that the unsafe hidden danger of thrombus is brought to the patient. Therefore, a device is needed to be designed to solve the problem of connection with an injector, a dialysis pipeline and a dialyzer, and normal saline, blood or clot in a suction dialyzer and/or a dialysis pipeline can be injected through the connection device, so that the whole extracorporeal circulation keeps unobstructed treatment, the extracorporeal circulation blood is continuously infused to a patient to the maximum extent, and the current treatment is smoothly completed. In view of this, we propose a connection tube.

Disclosure of Invention

The invention aims to provide a connecting pipe to solve the problems that when the dialysis pipeline proposed in the background art is subjected to blood coagulation, a local blood clot cannot be drawn out from the dialysis pipeline to return blood to a patient, and fine blood clots cannot be filtered out.

In order to achieve the purpose, the invention provides the following technical scheme:

a connecting pipe comprises a hollow cylindrical injector connecting pipe, wherein a liquid outlet end of the injector connecting pipe is connected with a connecting block, a cavity is formed in the connecting block, the injector connecting pipe is communicated with the cavity, a dialysis circulating pipe and a dialyzer threaded pipe are further mounted on the bottom surface of the injector connecting pipe, the dialysis circulating pipe and the dialyzer threaded pipe are communicated with the cavity, pipe clamps are mounted on the dialysis circulating pipe and the dialyzer threaded pipe, and caps are arranged on the injector connecting pipe and the dialysis circulating pipe;

the dialysis circulating pipe and the pipe wall of the dialyzer threaded pipe are both provided with valves, the pipe wall at the bottom end of the dialyzer threaded pipe is provided with internal threads, the dialyzer threaded pipe is also provided with a threaded cap, and the threaded cap is in threaded connection with the internal threads.

Preferably, a through hole for the syringe connecting pipe to pass through is formed in the connecting block, and the syringe connecting pipe is tightly adhered to the hole wall of the through hole in the connecting block.

Preferably, the connecting block is also provided with a through hole for the dialysis circulating pipe and the dialyzer threaded pipe to pass through, and the dialysis circulating pipe and the dialyzer threaded pipe are tightly adhered to the hole wall of the through hole in the connecting block.

Preferably, a blood clot filter screen is arranged on the upper surface of each valve.

Preferably, the dialysis circulating pipe and the pipe wall of the dialyzer threaded pipe are both provided with fixing rings, each fixing ring is internally provided with an annular groove, the groove wall of each annular groove is provided with a fixing block, and the bottom surface of each fixing block is provided with a blood clot dividing plate.

Preferably, the cross section of the fixing block is in a cross shape.

Preferably, the blood clot dividing plate has a triangular cross section.

Compared with the prior art, the invention has the beneficial effects that: the invention can conveniently seal the connecting pipe of the injector and the dialysis circulating pipe through the arranged cap, and can realize that the pressure is injected into the connecting pipe of the injector from the injector through the arranged valve and the blood clot filtering net, and then the blood clot passes through the dialysis circulating pipe and the threaded pipe of the dialyzer, the valve is closed, the blood clot filtering net can block the blood clot with any size, and the blood clot is prevented from entering the dialyzer or the pipeline, when the pressure is pumped into the injector through the dialysis circulating pipe and the threaded pipe of the dialyzer, the valve is unfolded, the blood clot in the dialyzer or the pipeline can be conveniently and rapidly pumped out, the smoothness of extracorporeal circulation can be favorably kept, the treatment can be continued, finally, the larger blood clot can be separated by the blood clot separating plate in the pumping process, the blockage of the pipeline by the large blood clot can be avoided, and the interruption of the dialysis treatment caused by the coagulation of the extracorporeal circulation, the waste of blood of a dialysis patient is reduced, the satisfaction degree of the patient is improved, and the problems that once blood coagulation occurs in extracorporeal circulation, partial blood clots cannot be extracted from the blood to return the blood to the patient, fine blood clots cannot be filtered, the blood mixed with the small blood clots can be easily returned to the patient in emergency operation, and the unsafe hidden danger of thrombus is brought to the patient are solved.

Drawings

FIG. 1 is an exploded view of the present invention;

FIG. 2 is a cross-sectional view of the present invention with the flapper closed;

FIG. 3 is a cross-sectional view of the present invention with the flapper deployed;

FIG. 4 is a cross-sectional view of a connector block of the present invention;

FIG. 5 is a perspective view of a retaining ring of the present invention;

fig. 6 is a perspective view of the fixing block of the present invention.

In the figure: 1. an injector connecting tube; 1a, a liquid outlet end; 2. connecting blocks; 21. a cavity; 3. a dialysis circulation tube; 31. a valve; 32. a blood clot filter screen; 33. a fixing ring; 331. an annular groove; 332. a fixed block; 3321. a blood clot dividing plate; 4. a dialyzer threaded tube; 41. an internal thread; 42. a threaded cap; 5. a pipe clamp; 6. and (7) capping.

Detailed Description

The technical solutions 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 a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Example 1

A connecting pipe, as shown in figure 1, figure 2 and figure 4, comprises a hollow cylindrical injector connecting pipe 1, theliquid outlet end 1a of the injector connecting pipe 1 is connected with a connectingblock 2, a through hole for the injector connecting pipe 1 to pass through is arranged in the connectingblock 2, the injector connecting pipe 1 is tightly bonded with the hole wall of the through hole in the connectingblock 2, acavity 21 is arranged in the connectingblock 2, the injector connecting pipe 1 is communicated with thecavity 21, adialysis circulating pipe 3 and a dialyzer threadedpipe 4 are also arranged on the bottom surface of the injector connecting pipe 1, thedialysis circulating pipe 3 and the dialyzer threadedpipe 4 are both communicated with thecavity 21, a through hole for thedialysis circulating pipe 3 and the dialyzer threadedpipe 4 to pass through is also arranged in the connectingblock 2, and thedialysis circulating pipe 3 and the dialyzer threadedpipe 4 are tightly bonded with the hole wall of the through, thedialysis circulating pipe 3 and the dialyzer threadedpipe 4 are both provided with apipe clamp 5, and the injector connecting pipe 1 and thedialysis circulating pipe 3 are both provided with acap 6.

Thevalve 31 is arranged on thedialysis circulating pipe 3 and the pipe wall of the dialyzer threadedpipe 4, theinner thread 41 is arranged on the pipe wall at the bottom end of the dialyzer threadedpipe 4, the threadedcap 42 is also arranged on the dialyzer threadedpipe 4, and the threadedcap 42 is in threaded connection with theinner thread 41.

In this embodiment, the top end of the syringe connecting tube 1 can be in insertion fit with the injection end of the syringe, so that the use of medical personnel is facilitated.

Further, when thecap 6 is used for sealing the syringe connecting tube 1 or thedialysis circulating tube 3, thecap 6 is inserted into the syringe connecting tube 1 or thedialysis circulating tube 3, and at the moment, thecap 6 can be tightly attached to the tube wall of the syringe connecting tube 1 or the tube wall of thedialysis circulating tube 3, so that liquid is prevented from flowing out of a gap between thecap 6 and the tube wall of the syringe connecting tube 1 or the tube wall of thedialysis circulating tube 3.

In this embodiment, through theblock 6 that sets up, conveniently seal syringe connecting pipe 1 anddialysis circulating pipe 3, through threaded connection between thescrew cap 42 that sets up and theinternal thread 41, convenientlyunscrew screw cap 42, install dialyzer screwedpipe 4 on other pipelines through threaded connection's mode, and owing to be threaded connection, the fastness when guaranteeing the installation.

Example 2

In the specific operation, when the syringe injects pressure into the dialyzer or dialysis tubing, fine blood clots cannot be filtered out, blood mixed with the fine blood clots is very easy to be returned to a patient in an emergency operation, and the patient is exposed to the unsafe risk of thrombus, so theflaps 31 are improved on the basis of embodiment 1, and as a preferred embodiment, as shown in fig. 3, a bloodclot filter screen 32 is installed on the upper surface of eachflap 31.

In this embodiment, theclot filter screen 32 is tightly bonded to theflap 31, so as to ensure the structural integrity and prevent the clot filter screen from falling off.

In this embodiment, through theclot filter screen 32 that sets up, conveniently filter tiny clot, avoid the clot to be reinfused to the patient internal, solved when the syringe is injected pressure to cerini dialyser cerini or dialysis pipeline, very easily will thoughtlessly have mixed the blood reinfused of tiny clot for patient in the emergency operation, brought the problem of the unsafe hidden danger of thrombus for the patient.

Example 3

In a specific operation, because the pumped blood contains blood clots, and larger blood clots are likely to cause pipeline blockage in the pipeline, which causes that the external circulation pipeline or the dialyzer cannot be used any more, and can only be replaced selectively, which wastes time to a certain extent and increases economic burden for patients, therefore, on the basis of embodiment 1, thedialysis circulation pipeline 3 and the dialyzer threadedpipe 4 are improved, as a preferred embodiment, as shown in fig. 5 and 6,fixing rings 33 are installed on the pipe walls of thedialysis circulation pipeline 3 and the dialyzer threadedpipe 4, anannular groove 331 is formed inside eachfixing ring 33, afixing block 332 is installed on the groove wall of eachannular groove 331, and a bloodclot dividing plate 3321 is installed on the bottom surface of eachfixing block 332.

In this embodiment, thefixing block 332 has a cross-shaped cross-section, and thefixing block 332 is tightly bonded to the groove wall of theannular groove 331.

It is noted that the section of theclot dividing plate 3321 is triangular, and the sharp edge formed by the two inclined sides faces away from thefixing block 332.

In this embodiment, through theclot partition plate 3321 that sets up, when containing the clot in the blood of taking out, under the effect of suction force, great clot can be given byclot partition plate 3321 and cut apart into less clot, avoid the clot to block up the pipeline, it contains the clot to have solved because in the blood of taking out, and great clot causes the pipeline to block up easily in the pipeline, cause extrinsic cycle pipeline or cerini dialyser cerini and can't continue to use again, can only select to change, this has wasted the time and has increased patient's economic burden's problem to a certain extent.

When the connecting pipe is used, the connecting pipe 1 of the injector and thedialysis circulating pipe 3 are conveniently sealed through the arrangedcover cap 6, in addition, the pressure is injected into the connecting pipe 1 of the injector from the injector through the arrangedvalve 31 and the bloodclot filter screen 32, and then the blood clot enters thedialysis circulating pipe 3 and the dialyzer threadedpipe 4, the bloodclot filter screen 32 on the upper surface of thevalve 31 can block the blood clot with any size, so that the blood clot is prevented from entering the dialyzer or the pipeline, when the pressure is pumped into the injector through thedialysis circulating pipe 3 and the dialyzer threadedpipe 4, thevalve 31 is unfolded, the blood clot in the dialyzer or the pipeline can be conveniently and quickly pumped out, the smoothness of extracorporeal circulation is favorably kept, and the treatment can be continued;

in the process of suction, under the action of suction force, blood clots can meet the bloodclot dividing plate 3321, larger blood clots can be divided into smaller blood clots by the bloodclot dividing plate 3321, and the blood clots can be prevented from blocking pipelines.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (1)

1. A connecting tube comprising a hollow cylindrical syringe connecting tube (1), characterized in that: the liquid outlet end (1a) of the injector connecting pipe (1) is connected with a connecting block (2), a cavity (21) is arranged inside the connecting block (2), the injector connecting pipe (1) is communicated with the cavity (21), a dialysis circulating pipe (3) and a dialyzer threaded pipe (4) are further installed on the bottom surface of the injector connecting pipe (1), the dialysis circulating pipe (3) and the dialyzer threaded pipe (4) are both communicated with the cavity (21), pipe clamps (5) are installed on the dialysis circulating pipe (3) and the dialyzer threaded pipe (4), and caps (6) are respectively arranged on the injector connecting pipe (1) and the dialysis circulating pipe (3);

the dialysis circulation pipe (3) and the dialyzer threaded pipe (4) are provided with valves (31), the pipe wall at the bottom end of the dialyzer threaded pipe (4) is provided with internal threads (41), the dialyzer threaded pipe (4) is also provided with a threaded cap (42), and the threaded cap (42) is in threaded connection with the internal threads (41); a through hole for the syringe connecting pipe (1) to pass through is formed in the connecting block (2), and the syringe connecting pipe (1) is tightly bonded with the wall of the through hole in the connecting block (2); a through hole for the dialysis circulating pipe (3) and the dialyzer threaded pipe (4) to pass through is further formed in the connecting block (2), and the dialysis circulating pipe (3) and the dialyzer threaded pipe (4) are tightly bonded with the hole wall of the through hole in the connecting block (2); a blood clot filter screen (32) is arranged on the upper surface of each valve (31); fixing rings (33) are respectively installed on the tube walls of the dialysis circulating tube (3) and the dialyzer threaded tube (4), an annular groove (331) is formed in each fixing ring (33), a fixing block (332) is installed on the groove wall of each annular groove (331), and a blood clot dividing plate (3321) is installed on the bottom surface of each fixing block (332); the cross section of the fixed block (332) is in a cross shape; the section of the blood clot partition plate (3321) is triangular.

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