CN113598843B

CN113598843B - Temporary plugging catheter for ventricular septal perforation caused by myocardial infarction

Info

Publication number: CN113598843B
Application number: CN202111008001.7A
Authority: CN
Inventors: 秦春常
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2022-12-06
Anticipated expiration: 2041-08-30
Also published as: CN113598843A

Abstract

The invention discloses a temporary plugging catheter for alternate perforation of heart chambers caused by myocardial infarction, which comprises a catheter body, wherein one end of the catheter body is an operation end, the other end of the catheter body is respectively provided with a first cavity, a second cavity, a third cavity and a fourth cavity, plugging airbags and positioning airbags which are distributed at intervals are fixedly connected to the periphery of the catheter body, the plugging airbags are distributed close to the operation end of the catheter body, the first cavity is provided with a liquid outlet used for being communicated with the plugging airbags, the second cavity is also provided with a liquid outlet used for being communicated with the positioning airbags, the positioning airbags are provided with a circulation gap, the third cavity is provided with a guide wire outlet positioned at the operation end, the fourth cavity is provided with a liquid injection port communicated with the outside of the catheter body, the liquid injection port is positioned between the plugging airbags and the positioning airbags, liquid containing anticoagulant is injected into the fourth cavity, the liquid flows to the outside of the catheter body from the liquid injection port and slowly permeates into a gap between a chamber partition wall and the two airbags, and thrombus can be avoided from being formed by blood condensing on a contact surface even if the retention time is long.

Description

Temporary plugging catheter for ventricular septal perforation caused by myocardial infarction

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a temporary plugging catheter for ventricular septal perforation caused by myocardial infarction.

Background

The human heart is composed of four chambers (left atrium, left ventricle, right atrium and right ventricle), and there should be a complete interventricular space between the left ventricle and the right ventricle to ensure an effective and orderly flow of blood. Myocardial infarction causes necrosis of partial myocardium on a heart ventricular septum, sometimes perforation is formed locally, so that the septum between a left ventricle and a right ventricle is incomplete, blood flows from the left ventricle to the right ventricle through the perforation of the ventricular septum, the blood volume of the right ventricle is increased, partial blood is circulated inefficiently, and the heart load is increased seriously. The prognosis of patients with this condition is very poor, with mortality rates of over 90%, since it is a superposition of two fatal diseases, myocardial infarction and ventricular septal perforation. The puncture hole in the ventricular septum needs to be repaired in an urgent way, but the thoracotomy and interventional occlusion of the metal occlusion umbrella are difficult to succeed, because the acute phase is seriously difficult to endure the large operation, the cardiac muscle at the puncture hole in the acute phase is fragile and non-flexible, the suture or the metal occlusion umbrella is not easy to fix and is easy to tear larger, meanwhile, the metal occlusion umbrella is tightly attached to the ventricular septum, and after circulating blood enters the gap between the metal occlusion umbrella and the ventricular septum, thrombus is easy to form, and the health of a patient is endangered.

Disclosure of Invention

Aiming at the technical problem that thrombus is easy to form in the prior art, the invention provides a temporary plugging catheter for ventricular septal perforation caused by myocardial infarction.

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

the utility model provides a myocardial infarction causes fenestrate interim shutoff pipe in heart room interval, includes the body, the one end of body is the operation end, and the other end is equipped with first chamber, second chamber, third chamber and fourth chamber respectively, the periphery rigid coupling of body has the shutoff gasbag and the location gasbag that are interval distribution, the shutoff gasbag is close to the operation end distribution of body, just first chamber be equipped with the liquid outlet, be used as with the shutoff gasbag is linked together, the second chamber also is equipped with the liquid outlet, and be used as with the location gasbag is linked together, the location gasbag is equipped with the circulation breach, the top surface of location gasbag is equipped with the gasbag ring, the inside of gasbag ring with the location gasbag communicates with each other, the gasbag ring also be equipped with through the mouth with the circulation breach communicates with each other, the third chamber is equipped with the seal wire export that is located the operation end for the current direction of guide wire, the fourth chamber be equipped with annotate the liquid mouth with the outside of body communicates with each other, it is located to annotate the liquid mouth between shutoff gasbag and the location gasbag.

Further, the plugging air bag is a spherical bag, and the positioning air bag is a circular bag.

Further, the flow gap is an inverted V-shaped opening, and the non-open end is close to the pipe body.

In conclusion, the beneficial effects of the invention are as follows: the seal wire stretches into the third intracavity, stretch out to lead to the body from the seal wire export, stretch into the room spaced opening with the operation end, the left side room is arranged in to the shutoff gasbag, the right side room is arranged in to the location gasbag, inject the liquid of taking the developer into the shutoff gasbag through first chamber, inject the liquid of taking the developer into the location gasbag through the second chamber, can audio-visually observe implantation process and the state of this shutoff catheter under the X ray environment, shutoff gasbag and location gasbag are full, occupy perforation department open-ended space, the shutoff gasbag blocks the blood flow with perforation department in close contact with, effectively avoid blood to flow from the left ventricle through perforation department to the right ventricle, the circulation breach is a perforation department and the communicating passageway of right chamber, can lead to between two gasbags, avoid forming the dead space, can prevent thrombosis. The port from the fourth chamber pours into the liquid that contains the anticoagulant into, and liquid flows to the body outside from annotating the intraoral flow direction of liquid, slowly permeates the space between room partition wall and two gasbags in, utilizes the circulation breach to guide liquid left ventricle, has the burden that liquid injection also can not increase right ventricle, even keep somewhere the time than longer, also can avoid blood to condense at the contact surface and form the thrombus.

Drawings

Fig. 1 is a structural schematic diagram of a temporary blocking catheter for ventricular septal perforation caused by myocardial infarction provided by the invention.

Fig. 2 is a transverse cross-sectional view of the positioning bladder of fig. 1.

In the figure, 100-tube body, 110-first cavity, 111-liquid outlet, 120-second cavity, 130-third cavity, 131-guide wire outlet, 140-fourth cavity, 141-liquid injection port, 200-blocking air bag, 300-positioning air bag, 310-flow gap and 320-air bag ring.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained by combining the specific drawings.

As shown in fig. 1, the invention provides a temporary occlusion catheter for perforation of ventricular septum caused by myocardial infarction, which comprises a tube 100, wherein one end of the tube 100 is an operation end, and the other end of the tube 100 is provided with a first cavity 110, a second cavity 120, a third cavity 130 and a fourth cavity 140. The periphery rigid coupling of body 100 has shutoff gasbag 200 and location gasbag 300 that are interval distribution, shutoff gasbag 200 is close to the operation end distribution of body 100, just first chamber 110 is equipped with liquid outlet 111, be used for with shutoff gasbag 200 is linked together. The second chamber 120 is also provided with a liquid outlet 111 and is used for being communicated with the positioning airbag 300, the positioning airbag 300 is provided with a circulation gap 310, and the circulation gap 310 is vertically arranged to penetrate through the positioning airbag 300. The third lumen 130 is provided with a guidewire outlet 131 at the operative end in the guidewire passage guiding direction. The fourth chamber 140 is provided with a liquid injection port 141 communicated with the outside of the tube body 100, and the liquid injection port 141 is positioned between the plugging air bag 200 and the positioning air bag 300.

The catheter body 100 is conveyed to a perforation by adopting a minimally invasive intervention method, then the plugging air bag 200 is inflated to a certain volume, the flexible plugging air bag 200 is used for temporarily plugging the perforation, the abnormal flow of blood is blocked, the heart burden is relieved, and the catheter is temporarily retained at the perforation. After 2 weeks, the condition of the patient is recovered, scar tissues are formed on the myocardium at the perforation position, the suture line can be resisted by having certain toughness, and at the moment, the blocking catheter is removed to carry out surgical operation or interventional blocking operation. The catheter is mainly used for temporary occlusion to help patients to spend acute phase. By adopting the structure, the guide wire extends into the third cavity 130, extends out of the guide wire outlet 131 to guide the pipe body 100, the operation end extends into an opening at the interval of the chambers, the plugging air bag 200 is arranged in the left chamber, the positioning air bag 300 is arranged in the right chamber, liquid with developer is injected into the plugging air bag 200 through the first cavity 110, liquid with developer is injected into the positioning air bag 300 through the second cavity 120, the implantation process and the state of the plugging catheter can be visually observed under the X-ray environment, after the plugging air bag 200 and the positioning air bag 300 are filled, the space of the opening at the perforation is occupied, the plugging air bag 200 is in close contact with the perforation to block blood flow, the situation that the blood flows from the left ventricle to the right ventricle through the perforation is effectively avoided, the circulation gap is a passage between the perforation and the right chamber, the circulation gap 310 can lead to the two air bags, the formation of a dead cavity is avoided, and the formation of thrombus can be prevented. The liquid containing anticoagulant is injected from the port of the fourth chamber 140, the liquid flows from the injection port 141 to the outside of the tube 100, slowly permeates into the space between the partition wall and the two balloons, and is guided to the left ventricle by the flow gap 310, and the load on the right ventricle is not increased even if the liquid is injected, and even if the retention time is long, the blood is prevented from coagulating to form thrombus on the contact surface.

As an alternative embodiment, the occlusion balloon 200 is a spherical balloon, and the contact surface of the spherical balloon after filling is a circular arc surface, and will contact the ventricular septum wall more quickly than the previous disc structure, and the occlusion balloon 200 blocks the communication between the perforation and the left ventricle, playing a role in blocking blood flow, and forming an occlusion. The positioning air bag 300 is a circular bag, after being inflated, the positioning air bag 300 and the blocking air bag 200 form a structure similar to a dumbbell, and the slightly larger positioning air bag 300 also plays a role in limiting the movement of the catheter on the other side of the perforation.

As shown in fig. 2, the flow-through gap 310 is an inverted "V" shaped opening, and the non-open end is adjacent to the tube 100, so that after the anticoagulation liquid is injected, the liquid is facilitated to pass through the flow-through gap 310, and the possibility of the liquid flowing to the right ventricle is further reduced. Furthermore, the other function of the flow gap 310 is to provide a gap between the two air cells at the location where the two air cells are clamped, so as to prevent the two air cells from filling and forming a dead space between the two air cells.

The top surface of location gasbag 300 is equipped with gasbag ring 320, the inside of gasbag ring 320 with location gasbag 300 communicates with each other, gasbag ring 320 also be equipped with through the mouth with circulation breach 310 communicates with each other. When the air sac ring 320 is not inflated, the implantation of the catheter is not affected, after the inflation, the air sac ring 320 is in contact with the compartment wall, after the contact, a certain space is formed in the air sac ring 320, and when the anticoagulation liquid flows to the space, the liquid is in contact with the compartment wall more fully, so that the blood coagulation is avoided. The airbag ring is in contact with the compartment wall, which is equivalent to the positioning airbag 300 on the right compartment surface of the compartment wall, so that the influence of movement on the positioning airbag 300 can be reduced as much as possible, the deformation of the positioning airbag 300 is reduced, and the smoothness of the circulation gap 310 is protected.

The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structures made by using the contents of the present specification and the drawings can be directly or indirectly applied to other related technical fields, and are also within the scope of the present invention.

Claims

1. A temporary plugging catheter for ventricular septal perforation caused by myocardial infarction is characterized in that: including a pipe body, the one end of body is the operation end, and the other end is equipped with first chamber, second chamber, third chamber and fourth chamber respectively, the periphery rigid coupling of body has the shutoff gasbag and the location gasbag that are interval distribution, the shutoff gasbag is close to the operation end distribution of body, just first chamber is equipped with the liquid outlet, be used as with the shutoff gasbag is linked together, the second chamber also is equipped with the liquid outlet, and be used as with the location gasbag is linked together, the location gasbag is equipped with the circulation breach, the top surface of location gasbag is equipped with the gasbag ring, the inside of gasbag ring with the location gasbag communicates with each other, the gasbag ring be equipped with through the mouth with the circulation breach communicates with each other, the third chamber is equipped with the seal wire export that is located the operation end for the current direction of guidance of seal wire, the fourth chamber be equipped with annotate the liquid mouth with the outside of body communicates with each other, annotate the liquid mouth be located between shutoff gasbag and the location gasbag, when the gasbag ring does not enough get up, can not influence the implantation of pipe, after filling, gasbag ring and coagulation chamber contact, after contact certain space, liquid is in addition, the anticoagulation gasbag and the contact more fully, the reduction of the location gasbag, the partition wall reduces the smooth spacing of the location gasbag, and the partition wall, the smooth of the location gasbag, and the partition wall of the location of the partition wall, and the partition wall of the partition wall.

2. The temporary occlusion catheter for perforation of ventricular septum caused by myocardial infarction according to claim 1, characterized in that: the plugging air bag is a spherical bag, and the positioning air bag is a circular bag.

3. The temporary occlusion catheter for ventricular septal perforation caused by myocardial infarction as claimed in claim 2, wherein: the flow gap is an inverted V-shaped opening, and the non-open end is close to the pipe body.