CN214074644U - Catheter for rapidly exchanging coronary artery dredging perfusion - Google Patents

Abstract

A catheter for rapidly exchanging coronary artery dredging perfusion comprises a three-way catheter, wherein the three-way catheter is provided with a first connecting port, a second connecting port and a third connecting port, the three connecting ports are communicated with each other, the first connecting port is connected with the catheter, the second connecting port is connected with a first injection and pushing device, the third connecting port is connected with a second injection and pushing device, the catheter comprises a head end pipe, and the head end pipe is designed to be conical; the head end pipe is connected with the front end pipe, the front end pipe is provided with a first inner cavity and a second inner cavity, and the first inner cavity is communicated with a side hole arranged at the tail part of the front end pipe; the front end of front end pipe be provided with first side opening and second side opening, and first side opening and second side opening are located different planes, first side opening and second side opening all communicate with the pipe afterbody.

Description

Catheter for rapidly exchanging coronary artery dredging perfusion

Technical Field

The utility model relates to a medical catheter, concretely relates to quick exchange coronary artery mediation pipe of pouring.

Technical Field

Acute thrombosis based on plaque instability leading to acute occlusion of the coronary arteries has been shown to be the most prominent pathophysiological mechanism of acute myocardial infarction. Emergency intervention treatment to restore effective blood flow to infarct-related vessels in time is the most effective treatment method for acute myocardial infarction. The current practice in emergency intervention treatment is to send a guide wire into a balloon catheter along the guide wire after the guide wire passes through an occluded blood vessel to the occluded part and expand the balloon to lead the blood vessel to be communicated again. The results of clinical application show that about 20 percent of patients with high thrombus load can not achieve effective revascularization by adopting the treatment method of saccule expansion, namely, the phenomenon of so-called 'no-reflow or slow-reflow' occurs, and the treatment effect is seriously influenced. In clinical practice, once no or slow reoccurrence occurs, when emergency injection of a blood flow improving drug into the coronary artery is required, only the following three methods can be adopted at present: firstly, the emergency transfinger guide tube is used for administration at the mouth of a coronary artery, the defect is that the administration is non-selective, the medicine reaching the local part of a target blood vessel is less, and the treatment effect is greatly reduced. Meanwhile, the administration dosage is large, so that the influence on the general conditions (such as blood pressure, heart rate, blood coagulation function and the like) can be generated; secondly, the balloon catheter is withdrawn to exchange the micro catheter, the micro catheter is sent to the local part of the target blood vessel along the guide wire, and the drug is administered through the micro catheter after the guide wire is withdrawn, so that the balloon catheter exchange micro catheter has the defects of complicated operation, time delay, material consumption increase, possibility of causing the catheter to be separated from a lesion part due to careless operation and the like; thirdly, the suction catheter is adopted for drug administration, but at present, all catheters have larger diameters, poorer capacity of passing through lesions, and larger inner cavities, so that the aim of local targeted slow drug administration cannot be fulfilled.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to improve prior art's defect, provide the medicine of quick local target, easily through the occluded blood vessel section, can effectively dredge the condition of opening according to the blood vessel in occluded part and the operation process, can be as required quick replacement other intervention equipment (such as sacculus and support etc.) fast exchange coronary artery mediation perfused pipe under the circumstances of remaining coronary seal wire in the target blood vessel.

The purpose of the utility model is realized like this: a catheter for rapidly exchanging coronary artery dredging perfusion comprises a three-way catheter, wherein the three-way catheter is provided with a first connecting port, a second connecting port, a third connecting port and a bolt, the three connecting ports are communicated with one another, the first connecting port is connected with the catheter, the second connecting port is connected with a first injection and pushing device, the third connecting port is connected with a second injection and pushing device, the bolt is located in the middle of the three-way catheter, the catheter comprises a head end pipe, and the head end pipe is designed to be conical; the head end pipe is connected with the front end pipe, the front end pipe is provided with a first inner cavity and a second inner cavity, and the first inner cavity is communicated with a side hole arranged at the tail part of the front end pipe; the front end of front end pipe be provided with first side opening and second side opening, and first side opening and second side opening are located different planes, first side opening and second side opening all communicate with the pipe afterbody.

Furthermore, the length of the front end pipe is 25cm, and the outer diameter of the front end pipe is 0.84 mm.

Preferably, an X-ray opaque marker band is arranged at 2.5cm of the front tube.

Still further, the front end tube tail is connected with a middle tube, and the outer diameter of the middle tube is 0.65 mm.

Still further, the first injection device is a 10ml syringe.

Still further, the second injection device is a 2ml threaded syringe.

Still further, the total length of the conduit is 140 cm.

The technical effects of the utility model: the utility model discloses a catheter for rapidly exchanging coronary artery dredging perfusion, which comprises a head end pipe, wherein the head end pipe is designed into a cone shape, and is easy to pass through an occlusion blood vessel section to play a role in dredging an occlusion part; the front end tube is provided with a first inner cavity and a second inner cavity, the first inner cavity is communicated with a side hole arranged at the tail part of the front end tube and is used for playing a role of quickly exchanging other interventional devices (such as a saccule, a stent and the like) through a coronary artery guide wire of 0.014 inches; the front end of the front end pipe is provided with a first side hole and a second side hole, the first side hole and the second side hole are located on different planes, and the first side hole and the second side hole are communicated with the tail of the catheter and used for injecting drugs, so that the problem that related drugs need to be rapidly and accurately targeted to the inside of a coronary artery in the process of selective coronary artery interventional diagnosis and treatment is solved.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic view of a rapid exchange coronary artery bypass perfusion catheter of the present invention;

FIG. 2 is an enlarged view of the three-way conduit of FIG. 1;

FIG. 3 is a partial cross-sectional view of the front end tube of FIG. 1;

FIG. 4 is a partial cross-sectional view of the catheter shown in FIG. 1;

the device comprises a first injection and push device-10, a three-way catheter-20, a first connecting port-21, a second connecting port-22, a third connecting port-23, a bolt-24, a catheter-30, a front end tube-31, a first inner cavity-311, a second inner cavity-312, a side hole-32, a first side hole-33, a second side hole-34, a middle tube-35, a head end tube-36 and a second injection and push device-40.

Detailed Description

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

The present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 shows a catheter for rapid exchange coronary artery dredging perfusion, fig. 1 and fig. 2 show a three-way catheter 20, the three-way catheter 20 is provided with a first connection port 21, a second connection port 22 and a third connection port 23, and the three connection ports are communicated with each other, the first connection port 21 is connected with a catheter 30, the second connection port 22 is connected with a first injection and pushing device 10, when the third connection port 23 is connected with a second injection and pushing device 40, the bolt 24 is located at the middle position of the three-way catheter 20, when the first injection and pushing device 10 needs to be used, the bolt handle of the bolt 24 points to the first injection and pushing device 10, the second connection port 22 is dredged, when the second injection and pushing device 40 needs to be used, the bolt handle of the bolt 24 points to the second injection and pushing device 40, the third connection port 23 is dredged, the first injection and pushing device 10 adopts a 10ml syringe, after the connection of the utility model is completed, the handle of the bolt 24 points to the first injection device 10 in vitro, the second connecting port 22 is dredged, the first injection device 10 is fully pumped with normal saline, the bolt 24 is closed after the system inner cavity is exhausted, the catheter 30 comprises a head end pipe 36, the head end pipe 36 is designed to be conical, and the function of dredging the occluded part is achieved easily by occluding the blood vessel section; the head end tube 36 is connected with the front end tube 31, the head end tube 36 and the front end tube 31 are made of polymer materials and can easily reach any branch blood vessel, the rest part of the catheter 30 is made of harder hypotube and can play a role in supporting and easily pushing, the front end tube 31 shown in figure 3 is provided with a first inner cavity 311 and a second inner cavity 312, the first inner cavity 311 shown in figure 4 is communicated with a side hole 32 arranged at the tail part of the front end tube 31 and can play a role in quickly exchanging other interventional devices (such as a balloon, a stent and the like) through a 0.014 inch coronary artery guide wire, the guide wire penetrates out of the head end tube 36, the catheter 30 is sent into the body along the guide wire and is pushed to a target lesion part, the conical head end tube 36 passes through an occlusion section, the front end of the front end tube 31 shown in figure 3 is provided with a first side hole 33 and a second side hole 34, and the first side hole 33 and the second side hole 34 are positioned on different planes, the first side hole 33 and the second side hole 34 are both communicated with the tail of the catheter 30, the catheter 30 is connected with the first connecting port 21, the handle of the bolt 24 is turned to the second injection pushing device 40, the second injection pushing device 40 adopts a 2ml syringe, the first connecting port 21 and the catheter 30 are dredged for injecting medicines, and the problem that related medicines need to be quickly and accurately targeted to the inside of a coronary artery in the process of selective coronary artery interventional diagnosis and treatment is solved.

Further, the front end pipe 31 has a length of 25cm and an outer diameter of 0.84 mm.

Preferably, a marker strip 37 opaque to X-rays is provided 2.5cm from the front tube 31 as shown in fig. 1.

Still further, the tail part of the front end pipe 31 shown in fig. 1 is connected with a middle pipe 35, and the outer diameter of the middle pipe 35 is 0.65 mm.

Still further, the first injection device 10 shown in fig. 1 is a 10ml syringe, and the 10ml syringe is filled with physiological saline to perform system lumen degassing.

Still further, the second injection device 40 shown in fig. 1 is a 2ml threaded syringe, and a drug is injected into the second injection device 40, and the drug is pushed to flow out to the lesion site from the first side hole 33 and the second side hole 34 through the catheter, so that targeted drug delivery is accurately achieved.

Still further, the overall length of the conduit 30 is 140 cm.

The utility model provides a rapid local targeting drug administration, easily through the occluded blood vessel section, can effectively dredge the circumstances of opening according to the blood vessel in occluded part and the operation process, can be as required other quick exchange coronary artery mediation perfused pipe of interveneeing equipment (such as sacculus and support etc.) of quick replacement under the circumstances of keeping coronary artery seal wire in the target blood vessel.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention, all of which are intended to be included within the scope of the invention.

Claims (7)

1. The utility model provides a pipe of quick exchange coronary artery mediation perfusion, includes tee bend pipe (20), tee bend pipe (20) be provided with first connector (21), second connector (22), third connector (23) and bolt (24) and communicate between the three connector, first connector (21) be connected with pipe (30), second connector (22) with first notes push away device (10) and be connected, third connector (23) annotate with the second and push away device (40) and be connected, bolt (24) be located tee bend pipe (20) middle part position, its characterized in that: the catheter (30) comprises a head end pipe (36), and the head end pipe (36) is designed to be conical; the head end pipe (36) is connected with the front end pipe (31), the front end pipe (31) is provided with a first inner cavity (311) and a second inner cavity (312), and the first inner cavity (311) is communicated with a side hole (32) arranged at the tail part of the front end pipe (31); the front end of front end pipe (31) be provided with first side opening (33) and second side opening (34), and first side opening (33) and second side opening (34) are located different planes, first side opening (33) and second side opening (34) all communicate with pipe (30) afterbody.

2. The rapid exchange coronary artery clearing perfusion catheter of claim 1, wherein: the length of the front end pipe (31) is 25cm, and the outer diameter of the front end pipe is 0.84 mm.

3. The rapid exchange coronary artery clearing perfusion catheter of claim 1 or 2, wherein: an X-ray opaque marker band (37) is arranged at the 2.5cm position of the front end tube (31).

4. The rapid exchange coronary artery clearing perfusion catheter of claim 3, wherein: the tail of the front end pipe (31) is connected with the middle pipe (35), and the outer diameter of the middle pipe (35) is 0.65 mm.

5. The rapid exchange coronary artery clearing perfusion catheter of claim 1, wherein: the first injection device (10) is a 10ml syringe.

6. The rapid exchange coronary artery clearing perfusion catheter of claim 1, wherein: the second injection device (40) is a 2ml threaded syringe.

7. The rapid exchange coronary artery clearing perfusion catheter of claim 1, wherein: the total length of the conduit (30) is 140 cm.

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