阅读说明：本技术 一种用于ecmo治疗时改善下肢缺血的侧支动脉导管 (Collateral artery catheter for improving lower limb ischemia during ECMO treatment ) 是由 许传屾 张伟娜 王新 王淑贤 郑桃花 高祀龙 李志强 臧运金 于 2020-12-15 设计创作，主要内容包括：本发明公开了一种用于ECMO治疗时改善下肢缺血的侧支动脉导管,包括导管主管,所述导管主管一端固定连接有导管主接口,所述导管主管一端贯通连接有加药连接导管,所述加药连接导管一端贯通连接有加药单向阀,所述加药单向阀一端活动连接有加药导管防尘盖,所述导管主管一端贯通连接有动脉接入导管,所述动脉接入导管一端贯通连接有动脉接入导管单向阀,所述动脉接入导管单向阀一端固定连接有半椭圆形导管头,所述导管主管另一端固定连接有末端连接单向阀；本发明能够方便使用ECMO治疗用的侧支动脉导管,能够改善下肢缺血的情况,同时能够有效防止血液回流,同时末端连接单向阀能够在动脉接入导管出现堵塞的情况时,临时紧急接入导管使用,实用性强。(The invention discloses a collateral artery catheter for improving lower limb ischemia during ECMO treatment, which comprises a catheter main pipe, wherein one end of the catheter main pipe is fixedly connected with a catheter main interface, one end of the catheter main pipe is connected with a dosing connecting catheter in a penetrating way, one end of the dosing connecting catheter is connected with a dosing one-way valve in a penetrating way, one end of the dosing one-way valve is movably connected with a dosing catheter dust cap, one end of the catheter main pipe is connected with an artery access catheter in a penetrating way, one end of the artery access catheter is connected with an artery access catheter one-way valve in a penetrating way, one end of the artery access catheter one-way valve is fixedly connected with a semi-elliptical catheter head, and; the invention can conveniently use the collateral artery catheter for ECMO treatment, can improve the condition of lower limb ischemia, can effectively prevent blood backflow, and can temporarily and emergently access the catheter for use when the artery access catheter is blocked by connecting the one-way valve at the tail end, thereby having strong practicability.)

1. The utility model provides a collateral branch artery pipe that improves low limbs and lack blood when being used for ECMO treatment, its characterized in that includes that the pipe is responsible for (1), the pipe is responsible for (1) one end fixedly connected with pipe main interface (2), the pipe is responsible for (1) one end through connection has medicine-adding connecting tube (3), medicine-adding connecting tube (3) one end through connection has medicine-adding check valve (4), medicine-adding check valve (4) one end swing joint has medicine-adding pipe shield (5), the pipe is responsible for (1) one end through connection has artery access pipe (6), artery access pipe (6) one end through connection has artery access pipe check valve (7), artery access pipe check valve (7) one end fixedly connected with semiellipse shape pipe head (8), the pipe is responsible for (1) other end fixedly connected with end connection check valve (9), one end of the tail end connecting one-way valve (9) is movably connected with a tail end dust cover (10).

2. The collateral artery catheter for improving ischemia of lower limbs when ECMO is treated according to claim 1, characterized in that, annular sealing connecting nozzle (11) is fixedly connected to one end of medicine adding check valve (4).

3. The collateral artery duct for improving ischemia in lower limbs when ECMO treatment of claim 1, characterized in that, the artery access duct (7) has a lateral blood outlet (12) opened at the end side.

4. The collateral artery catheter for improvement of lower limb ischemia in ECMO treatment of claim 1, wherein the dosing check valve (4) is a check valve that can flow to the inside of the dosing connection catheter (3).

5. The collateral artery duct for improvement of lower limb ischemia when ECMO treatment of claim 1, wherein the artery access duct one-way valve (7) is a one-way valve that can be passed from the artery access duct (6) to the outside.

6. The collateral artery catheter for improving ischemia in lower limbs when carrying out ECMO treatment according to claim 1, wherein the distal connection check valve (9) is a check valve that can be passed in a direction from the catheter main tube (1) to the outside.

7. The collateral artery catheter for improvement of lower limb ischemia when ECMO treatment of claim 2, wherein the annular sealing junction nozzle (11) is made of medical silica gel material with high ductility.

8. Collateral artery catheter for improvement of lower limb ischemia when ECMO treatment according to claim 3, characterized in that the number of lateral blood outlets (12) is arranged in multiple groups and evenly distributed at the end of the arterial access catheter one-way valve (7).

9. The collateral artery catheter for improvement of lower limb ischemia when ECMO treatment of claim 1, wherein the catheter main port (2) is fixedly connected with an elastic nozzle sealing ring (13) at one end.

10. The collateral artery catheter for improvement of lower limb ischemia when ECMO treatment of claim 1, wherein the elastic nozzle sealing ring (13) is made of medical grade silicone material with low ductility.

Technical Field

The invention relates to the technical field of medical equipment, in particular to a collateral artery catheter for improving lower limb ischemia during ECMO treatment.

Background

The extracorporeal membrane pulmonary oxygenation (ECMO) mainly comprises an intravascular cannula, a connecting tube, a power pump, an oxygenator, an oxygen supply tube, a monitoring system and the like; the power pump, namely the artificial heart, provides power to drive the blood to flow in the pipeline. There are two main types of power pumps in clinical use: rolling pumps and centrifugal pumps. The rolling pump is not easy to move and difficult to manage. The centrifugal pump is the first choice for first aid, and the advantages are convenient installation and movement, easy management and little blood damage; the oxygenator is an artificial lung, oxygenates the input blood, and outputs oxygenated arterial blood. The oxygenator is divided into a silica gel membrane type and a hollow fiber type. The silica gel membrane has good biocompatibility, less plasma leakage and less blood component damage, and is suitable for long-term use. The hollow fiber type membrane lung is easy to exhaust, plasma leakage can be seen in 2-3 days, and the damage of blood components is relatively large.

In the ECMO treatment, a collateral artery catheter is required to be used, but the existing collateral artery catheter is often used to cause lower limb ischemia.

Disclosure of Invention

The present invention is directed to a collateral artery catheter for improving ischemia of lower limbs in ECMO treatment, which solves the above problems of the background art.

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

the utility model provides an improve collateral branch artery pipe that low limbs are ischemic when being used for ECMO treatment, is responsible for including the pipe, the pipe is responsible for one end fixedly connected with pipe owner interface, the pipe is responsible for one end through connection and is added medicine connecting tube, it has the medicine check valve to add medicine connecting tube one end through connection, it has medicine pipe shield to add medicine check valve one end swing joint, the pipe is responsible for one end through connection and has the artery to insert the pipe, artery access pipe one end through connection has the artery to insert pipe check valve, artery access pipe check valve one end fixedly connected with semiellipse pipe head, the pipe is responsible for other end fixedly connected with end-to-end connection check valve, end-to-end connection check valve one end swing joint has end.

As a further scheme of the invention: one end of the dosing one-way valve is fixedly connected with an annular sealing connecting pipe orifice.

As a still further scheme of the invention: a lateral blood outlet is formed in the lateral side of the tail end of the artery access catheter.

As a still further scheme of the invention: the dosing one-way valve is a one-way valve which can flow to the inside of the dosing connecting catheter.

As a still further scheme of the invention: the artery access conduit one-way valve is a one-way valve which can be communicated from the artery access conduit to the outside.

As a still further scheme of the invention: the tail end connecting one-way valve is a one-way valve which can flow from the main pipe of the catheter to the outside.

As a still further scheme of the invention: the annular sealing connecting pipe orifice is made of medical silica gel materials with higher ductility.

As a still further scheme of the invention: the lateral blood outlets are provided with a plurality of groups in number and are uniformly distributed at the tail ends of the one-way valves of the artery access catheters.

As a still further scheme of the invention: one end of the main connector of the guide pipe is fixedly connected with an elastic pipe orifice sealing ring.

As a still further scheme of the invention: the elastic pipe orifice sealing ring is made of medical silica gel materials with lower ductility.

Compared with the prior art, the invention has the beneficial effects that:

1. the tail end of the arterial access catheter is connected with the one-way valve, so that the arterial access catheter can be used temporarily and emergently when the arterial access catheter is blocked, and meanwhile, the arterial access catheter can be used temporarily and emergently when lower limb ischemia occurs during working.

2. The dosing connecting catheter provided by the invention can be used for emergency drug injection at any time during working, and the situation of blood backflow can be effectively prevented due to the dosing one-way valve and the artery access catheter one-way valve.

3. The multiple groups of lateral blood outlets can effectively improve blood flow and reduce pressure, and the lateral blood outlets can reduce irritation, and can be conveniently sealed and sleeved in a medicine injection port through the annular sealing connecting pipe orifice made of the medical silica gel material with higher ductility, and can be firmly fixed and sealed through the elastic pipe orifice sealing ring made of the medical silica gel material with lower ductility.

Drawings

Fig. 1 is a schematic structural view of a collateral artery duct for improving lower limb ischemia in ECMO treatment.

Fig. 2 is a schematic structural view of a dosing one-way valve in a collateral artery catheter for improving lower limb ischemia during ECMO treatment.

Fig. 3 is a schematic structural diagram of an artery access catheter check valve in a collateral artery catheter for improving lower limb ischemia during ECMO treatment.

Fig. 4 is a schematic structural diagram of a main catheter interface in a collateral artery catheter for improving lower limb ischemia during ECMO treatment.

In the figure: 1-a catheter main pipe, 2-a catheter main interface, 3-a dosing connecting catheter, 4-a dosing one-way valve, 5-a dosing catheter dustproof cover, 6-an artery access catheter, 7-an artery access catheter one-way valve, 8-a semi-elliptical catheter head, 9-a tail end connecting one-way valve, 10-a tail end dustproof cover, 11-an annular sealing connecting pipe orifice, 12-a lateral blood outlet and 13-an elastic pipe orifice sealing ring.

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.

Referring to fig. 1 to 4, in the embodiment of the present invention, a collateral artery catheter for improving lower limb ischemia during ECMO treatment includes a catheter main tube 1, one end of the catheter main tube 1 is fixedly connected with a catheter main port 2, one end of the catheter main tube 1 is connected with a drug adding connecting catheter 3 in a penetrating manner, one end of the drug adding connecting catheter 3 is connected with a drug adding one-way valve 4 in a penetrating manner, the drug adding one-way valve 4 is a one-way valve capable of flowing in the direction toward the inside of the drug adding connecting catheter 3, one end of the drug adding one-way valve 4 is movably connected with a drug adding catheter dust cap 5, one end of the catheter main tube 1 is connected with an artery access catheter 6 in a penetrating manner, one end of the artery access catheter 6 is connected with an artery access catheter one-way valve 7 in a penetrating manner, the artery access catheter one-way valve 7 is a one-way valve capable of flowing, the pipe is responsible for 1 other end fixedly connected with end-to-end connection check valve 9, end-to-end connection check valve 9 be can by the pipe is responsible for 1 to the check valve of outside circulation direction, 9 one end swing joint of end-to-end connection check valve has terminal shield 10, add 4 one end fixedly connected with annular sealing connection mouth of pipe 11 of medicine check valve, the annular sealing connection mouth of pipe 11 is the annular sealing connection mouth of pipe that the higher medical silica gel material of ductility made, the side direction blood outlet 12 has been seted up to 7 terminal sides of artery access pipe, side direction blood outlet 12 quantity is provided with the multiunit, and evenly distributed in 7 ends of artery access pipe check valve, 2 one end fixedly connected with elasticity mouth of pipe sealing rings 13 of pipe main interface, elasticity mouth of pipe sealing rings 13 is made for the lower medical silica gel material of ductility.

The working principle of the invention is as follows: when in use, one end of the catheter main interface 2 is connected onto the ECMO blood output port, the elastic pipe orifice sealing ring 13 is pulled open forcibly and sleeved on the ECMO blood output port to be fixed firmly, the artery access catheter 6 is inserted into a neck artery, the semi-elliptical catheter head 8 is arranged at the front end of the artery access catheter 6, the condition of damaging blood vessels can be reduced to the maximum extent during intubation, after intubation is completed, the blood of the device is started to flow into the artery access catheter 6 through the catheter main pipe 1 and flows into the artery from the side blood outlet 12 through the artery access catheter one-way valve 7, various emergency medicines can be injected by accessing the medicine injector on the dosing one-way valve 4 at any time during working, the tail end arranged at the tail end of the catheter main pipe 1 is connected with the one-way valve, and the device can be used for emergency temporarily when the artery access catheter 6 is blocked, meanwhile, when lower limb ischemia occurs during working, the lower limb femoral artery can be accessed to the patient urgently for temporary emergency use.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.