CN213852742U - Central venous catheter flushing and sealing pipe connecting device - Google Patents

Abstract

The utility model relates to the technical field of medical equipment, a central ductus venosus dashes seals union coupling device is disclosed, including syringe joint, needleless connector and shunt, needleless connector has two at least, and the shunt includes inlet and two at least liquid outlets, connects through being responsible for between inlet and the syringe joint to be connected, is connected through the accessory pipe between each liquid outlet and each needleless connector, and the internal diameter and the length of each accessory pipe are the same, and the syringe connects and includes shell and compartment membrane, has still arranged the toper interface on the shell. When the flushing and sealing tube is used, a nurse inserts the syringe into the conical interface, and pushes the syringe to send liquid into each tube cavity at the same time, and because the length and the inner diameter of the auxiliary tube are the same, the volume and the pressure of the liquid in each tube cavity can be ensured to be uniform, the condition of blood return is avoided, and the risk of thrombus in the catheter is reduced; only need a syringe can carry out the washing and sealing pipe operation to a plurality of lumens, reduced nurse's work load and operating cost.

Description

Central venous catheter flushing and sealing pipe connecting device

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a central venous catheter dashes seals union coupling device.

Background

In clinical work, the central venous catheter all need be kept somewhere to the big operation patient of surgery, and central venous catheter is kept somewhere in patient's great vein after the big operation of surgery is accomplished, and medical personnel can measure operations such as central venous pressure, venous transfusion, medicine injection, hemodialysis through central venous catheter, avoid puncturing repeatedly the patient, and the medical personnel work of being convenient for simultaneously of reduction patient's ailment.

The medical care personnel need to draw back blood before transfusion by using the central venous catheter and need to flush and seal the catheter after transfusion. The existing central venous catheter indwelling after operation is usually in the specifications of dual-cavity, multi-cavity and the like, namely, the external part of the central venous catheter is connected with a plurality of lumens, but the plurality of lumens are not all used, most of the existing flushing and sealing pipe operation is carried out aiming at the lumens in use, but the unused lumens cannot be flushed and sealed once every day. And the nurse respectively to the back blood risk that the washing of unilateral was sealed the pipe and can be increased another lumen, lead to the thrombotic work loss of lumen that does not use, if the thrombus drops and can increase the risk that the lung embolism was tied even, consequently need to carry out washing simultaneously to each lumen and seal the pipe work to reduce the interior risk of returning blood of pipe.

Nurse when dashing and sealing the pipe, if 2 syringes of singlehanded carry out two-chamber towards respectively and seal the pipe, 2 syringes need the singlehanded pipe operation of dashing simultaneously, the operation degree of difficulty is big, 2 syringes dynamics are uneven in the singlehanded injection, towards sealing a tub effect not good enough, increase the risk of blood return in the pipe, cause the pipe to lose merit, nurse's work load has also been increased simultaneously, make nurse's executive power insufficient, the intracavity volume of central venous catheter is about 1-2 ml simultaneously, different pipe models, the intracavity volume is different but the difference is little in the pipe, towards sealing the syringe that the pipe operation adopted 10ml pipe diameters, it is extravagant that a central venous catheter towards sealing the pipe operation adopts 2 pipe sealing liquid to lead to towards sealing the pipe liquid, the patient to restriction transfusion volume has increased the infusion volume, the operating cost has been increased, time and aggravate the state of an illness risk.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: the utility model provides a central venous catheter dashes seals a tub connecting device to the nurse who has solved among the prior art has adopted two syringes to the central venous catheter dashes the problem that the dynamics is uneven when sealing a pipe increases the risk of pipe intracavity thrombus, increase operating cost and operating time.

In order to realize the above-mentioned purpose, the utility model provides a central ductus venosus dashes seals union coupling device, including syringe joint, needleless connector and shunt, needleless connector has two at least, the shunt include the inlet and with two at least liquid outlets of inlet intercommunication, the inlet with connect through being responsible for between the syringe joint, connect through the accessory pipe between each liquid outlet and each needleless connector, the internal diameter and the length of each accessory pipe are the same, the syringe joint includes the shell and arranges the compartment membrane in the shell, still arranged on the shell be used for with the toper interface of syringe adaptation.

Preferably, the separation membrane comprises a membrane body and end caps arranged at two ends of the membrane body, the end caps and the membrane body are of an integrally formed structure, and the end caps at the two ends are provided with cutting slits for the syringe to pass through.

Preferably, the membrane body is made of silica gel.

Preferably, the outer side of the outer shell is further provided with a plurality of convex ribs which are arranged at intervals along the circumferential direction of the outer shell.

Preferably, the needleless connector is provided with an internal thread for connecting with a central venous catheter or an infusion connector.

The embodiment of the utility model provides a central venous catheter dashes seals union coupling device compares with prior art, and its beneficial effect lies in: through the shunt between syringe joint and the needleless connector, be responsible for and the auxiliary line is connected, when needs seal the pipe operation to central venous catheter, the nurse inserts the syringe in the taper joint, be connected needleless connector and each lumen of central venous catheter, the taper joint can closely laminate in order to increase the leakproofness with the syringe, the nurse promotes the syringe and can send liquid into each lumen simultaneously, because the length and the internal diameter of auxiliary line are the same, can guarantee that the capacity and the pressure of the liquid in each lumen are even, thereby avoid appearing the situation of blood return, reduce the risk of thrombus in the pipe, only need a syringe to carry out the operation of sealing the pipe to a plurality of lumens simultaneously, nurse's work load and working cost have been reduced, time saving, the efficiency of sealing the pipe has been improved.

Drawings

Fig. 1 is a schematic structural view of the central venous catheter flushing and sealing tube connection device of the present invention;

figure 2 is a cross-sectional view of the syringe adapter of the central catheter flush tube attachment of figure 1.

In the figure, 1, a syringe connector; 11. a housing; 12. separating the membrane; 121. a membrane body; 122. an end cap; 123. cutting a seam; 13. a tapered interface; 14. convex edges; 2. a needleless connector; 21. an internal thread; 3. a flow divider; 31. a liquid inlet; 32. a liquid outlet; 4. a main pipe; 5. and (4) a secondary pipe.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

The preferred embodiment of the central venous catheter flush tube connection device of the present invention, as shown in fig. 1 and 2, comprises a syringe connector 1, a needleless connector 2, a shunt 3, a main tube 4 and an auxiliary tube 5.

The syringe adapter 1 is used for connecting with a syringe during punching and sealing tube operation, the syringe adapter 1 comprises a shell 11, a separation membrane 12 and a conical interface 13, the separation membrane 12 is fixed in the shell 11, the conical interface 13 is arranged on the shell 11, and the inner diameter of the conical interface 13 is gradually increased along the direction far away from the shell 11. Protruding stupefied 14 has still been arranged to the outside of shell 11, and protruding stupefied 14 has a plurality ofly along shell 11 circumference interval arrangement, and protruding stupefied 14 can increase the frictional force of shell 11, and the nurse of being convenient for inserts the syringe in the toper interface 13. When dashing and sealing the pipe, the nurse stretches into the nipple of syringe in the toper interface 13, and toper interface 13 closely laminates with the nipple of syringe, can increase the leakproofness between syringe joint 1 and the syringe, avoids hiding the bacterium, improves the effect of washing central venous catheter.

The separation membrane 12 includes a membrane body 121 and end caps 122, the end caps 122 are disposed at two ends of the membrane body 121 along the liquid flowing direction, the membrane body 121 is a cylindrical structure, the material of the membrane body 121 is silica gel, and the surface of the membrane body 121 is smooth, transparent and elastic. End cap 122 and membrane body 121 are integrated into one piece structure, and end cap 122 is the smooth curved surface of circular, all offers the incision 123 that supplies the syringe to pass on two end caps 122, and the length of incision 123 is 1.5mm, and the incision 123 on two end caps 122 is arranged relatively, and incision 123 forms the stealthy opening on end cap 122. When the syringe is connected with the syringe connector 1, the syringe is inserted into the cutting slits 123 on the separation membrane 12, the invisible openings are opened, and the nipple of the syringe passes through the invisible slits of the two end caps 122 to perform the injection and flushing of the tube liquid.

The needle-free joints 2 are two, the two needle-free joints 2 are used for being respectively connected with two lumens of the central venous catheter or the infusion joints, and in other embodiments, the needle-free joints 2 can also be three, four and the like, and the specific number is the same as the number of the lumens of the central venous catheter. The needle-free joint 2 is also provided with internal threads 21, and the needle-free joint 2 is in threaded connection with the infusion joint of the central venous catheter, so that the connection can be ensured to be tight and sealed.

Flow divider 3 is Y shape structure, flow divider 3 includes a inlet 31 and two liquid outlets 32, communicate each other between inlet 31 and each liquid outlet 32, be connected with between inlet 31 and the syringe connects 1 and be responsible for 4, be connected with accessory pipe 5 between two liquid outlets 32 and two needleless connectors 2, be responsible for 4 and accessory pipe 5 and be the plastic tubing of injection usefulness, be responsible for 4 cartridges in inlet 31, 5 cartridges of accessory pipe are in liquid outlet 32, be responsible for 4 and inlet 31, be interference fit between accessory pipe 5 and the liquid outlet 32, with the increase leakproofness, avoid the liquid seepage.

The length of the main tube 4 is 30mm, the inner diameter is 0.5mm, the volume is 0.1ml, the length of the auxiliary tube 5 is 20mm, the inner diameter is 0.3mm, the volume is 0.08ml, and the specifications of the two auxiliary tubes 5 are completely the same, namely the inner diameter and the length of the two auxiliary tubes 5 are also the same, so that the pressure between the injector connector 1 and the two needleless connectors 2 is the same, the volume and the pressure of liquid entering each tube cavity are also completely the same, the condition of blood return caused by pressure difference between the tube cavities is avoided, and the risk of thrombus in the catheter is reduced.

In summary, the embodiment of the utility model provides a central venous catheter flushing and sealing tube connecting device, the injector joint and the needleless joint are connected through a shunt, a main pipe and an auxiliary pipe, when the central venous catheter needs to be flushed and sealed, a nurse inserts the injector into the tapered interface, connects the needleless connector with each lumen of the central venous catheter, the tapered interface can be tightly attached to the injector to increase the sealing performance, the nurse pushes the injector to simultaneously send liquid into each lumen, because the length and the inner diameter of the auxiliary pipe are the same, the capacity and the pressure of the liquid in each pipe cavity can be ensured to be uniform, thereby avoid appearing the situation of blood return, reduce the risk of thrombus in the pipe, only need an injector can carry out towards a plurality of lumens simultaneously and seal the pipe operation, reduced nurse's work load and operating cost, save time has improved towards the efficiency of sealing the pipe.

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 replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims (5)

1. The utility model provides a central venous catheter flush seal pipe connecting device, its characterized in that, includes syringe joint, needleless connector and shunt, needleless connector has two at least, the shunt include the inlet and with two at least liquid outlets of inlet intercommunication, the inlet with connect through being responsible for between the syringe joint, connect through the accessory pipe between each liquid outlet and each needleless connector, the internal diameter and the length of each accessory pipe are the same, the syringe joint includes the shell and arranges the compartment membrane in the shell, still arranged on the shell be used for with the conical interface of syringe adaptation.

2. The central venous catheter flush tube connection device according to claim 1, wherein the separation membrane comprises a membrane body and end caps arranged at two ends of the membrane body, the end caps and the membrane body are of an integral structure, and the end caps at the two ends are provided with slits for a syringe to pass through.

3. The central venous catheter flush tube connection device according to claim 2, wherein the membrane body is made of silica gel.

4. The central venous catheter flush tube connection device according to any one of claims 1 to 3, wherein a plurality of ribs are arranged on the outer side of the shell at intervals along the circumferential direction of the shell.

5. The central venous catheter flush tube connection device according to any of claims 1 to 3, wherein the needle-free connector is provided with an internal thread for connection with a central venous catheter or an infusion connector.

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