CN110478604A - A kind of interior shunt tube maintaining the blood supply of abdominal viscera artery - Google Patents

Abstract

The invention discloses an internal bypass tube for maintaining the blood supply of the celiac visceral artery, which comprises a main duct and several branch ducts. The two ends of the main duct are open. They are respectively connected with the main balloon filling tube. There are several main tube ports on the side wall of the main tube, and the branch tubes are connected with the main tube through the main tube interface; A balloon with a branching balloon filling tube is installed on the branching balloon. The invention can solve the problems of cumbersome operation and inconvenient use of the flow tube in the cavity in the prior art, and has simple and convenient operation, wide application range and strong reliability.

Description

An internal bypass tube for maintaining the blood supply of the celiac visceral artery

technical field

The invention relates to the field of medical devices, in particular to an internal bypass tube for maintaining the blood supply of abdominal visceral arteries.

Background technique

Thoracoabdominal aortic aneurysms and some retroperitoneal tumors usually involve visceral arteries such as the renal artery, superior mesenteric artery, and celiac artery. When performing these operations, it is necessary to block these visceral arteries with blocking forceps for aneurysm resection or tumor resection, and visceral artery occlusion for more than 30 minutes may lead to ischemia and necrosis of the corresponding organs. Surgical techniques are extremely demanding, and there is a high possibility of organ ischemia and necrosis after surgery. Therefore, it is of great significance to design a bypass device that can block the blood flow of the aorta and satisfy the blood supply of the visceral artery to improve the diagnosis and treatment of thoracoabdominal aortic aneurysm and retroperitoneal tumor involving the visceral artery.

At present, there are shunt tubes used for carotid endarterectomy or endovascular reconstruction in China, but these shunt tubes have only two ends and can only divert one target vessel. In addition, there is currently another multi-balloon occlusion shunt specially used for thoracoabdominal aortic aneurysm, but it is a fixed design, and can only insert branches from the abdominal aorta. Visceral arteries were anastomosed. However, due to the variable number of visceral arteries involved in retroperitoneal tumors, it cannot be used in retroperitoneal tumor surgery. Therefore, there are certain defects in the current transfer tubes.

Contents of the invention

The present invention aims at the above-mentioned shortcomings in the prior art, and provides an internal bypass tube for maintaining the blood supply of the celiac visceral artery, which can solve the problems of cumbersome operation and inconvenient use of the intracavitary bypass tube in the prior art.

In order to solve the problems of the technologies described above, the present invention adopts the following technical solutions:

Provided is an internal bypass tube for maintaining the blood supply of the visceral artery in the celiac cavity, which includes a main duct and several branch ducts. The main balloon filling tube is connected, and there are several main tube ports on the side wall of the main tube. A branching balloon filling tube is installed on the branching balloon.

In the above technical solution, preferably, a medical three-way cap is installed on the main pipe interface not connected with the branch pipe.

In the above technical solution, preferably, the connecting part of the branch pipe and the main pipe interface is provided with a branch pipe interface.

In the above technical solution, preferably, an outer sleeve is provided outside the main pipe interface, an external thread is provided on the outer sleeve, and an abutment plate is provided on the end of the external thread.

In the above technical solution, preferably, an external mouthpiece is sheathed on the outside of the pipe branching interface, and an internal thread is provided on the inner wall of the external mouthpiece.

In the above technical solution, preferably, both the branch pipe interface and the main pipe interface are elastic pipes.

In the above technical solution, preferably, the length of the outer mouthpiece is the same as the length of the outer sleeve.

In the above technical solution, preferably, there are four main pipe interfaces, which are arranged symmetrically on both sides of the main pipe.

In the above technical solution, preferably, the length of the main conduit and the branch conduit is 20cm to 40cm.

In the above technical solution, preferably, the maximum filling outer diameter of the main balloon is 0 mm, and the maximum filling outer diameter of the branching balloon is 20 mm.

The main beneficial effects of the above-mentioned internal bypass tube for maintaining the blood supply of the celiac visceral artery provided by the present invention are:

In the present invention, by setting the internal flow tube into a spliced structure of the main conduit and the branch tube, it is convenient to insert into the visceral artery, and the branch tube can be flexibly set according to the number of the involved visceral arteries, so as to carry out the visceral artery circulation. Therefore, without blocking the blood flow at the distal end of the affected abdominal aorta, the normal blood supply of the visceral artery can be ensured, which facilitates the operation for the patient. At the same time, in addition to being used to maintain the blood supply of the celiac visceral artery, the device can also be used to maintain the blood supply of the iliac artery and other branches of the aorta, and has a wide range of applications.

By setting the main pipe interface to cooperate with the branch pipe interface, the twisting and regulation of the branch pipe is convenient, and the compliance is good; by setting the external mouth pipe on the branch pipe interface and the outer sleeve on the main pipe interface, the thread of the outer mouth pipe and the outer sleeve can be used. The connection ensures the stable connection between the branch pipe and the main pipe; by setting the abutment plate, the fixing accuracy of the external mouth pipe is ensured.

By setting the end of the branch tube into a tapered shape, it is convenient to insert into the visceral artery; by setting the main balloon and the branch balloon, it is convenient to block the blood flow in the blood vessel; by setting the main balloon filling tube and the branch balloon filling tube, It is convenient to fill and discharge fluid into the main tube balloon and the branch tube balloon to make them expand and deflate.

Description of drawings

Fig. 1 is a schematic diagram of the connection relationship of the inner diversion tube.

Fig. 2 is a structural schematic diagram of the main conduit of the present invention.

Fig. 3 is a structural schematic diagram of a branch pipe.

Among them, 1. main catheter, 11. competent balloon, 12. main balloon filling tube, 2. main tube interface, 21. outer tube, 22. external thread, 23. abutment plate, 3. branch tube, 31. branch tube Balloon, 32, in charge of balloon filling tube, 4, in charge of interface, 41, external mouthpiece, 42, internal thread.

Detailed ways

The present invention will be further described below in conjunction with accompanying drawing:

As shown in FIG. 1 , it is a schematic diagram of the connection relationship of the internal bypass tube maintaining the blood supply of the celiac visceral artery.

The internal bypass tube for maintaining the blood supply of the celiac visceral artery of the present invention includes a main duct 1 and several branch ducts 3, and the two ends of the main duct 1 are open. The balloon 11 and the competent balloon 11 are respectively connected with the main balloon filling tube 12, and several main conduit ports 2 are provided on the side wall of the primary conduit 1; as shown in Figure 3, the branch conduit 3 is connected with the primary conduit 1 through the primary conduit 2; Both ends of the tube 3 are open, and the end of the branch tube 3 deviated from the main catheter 1 is provided with a branching balloon 32 , and the branching balloon 31 is equipped with a branching balloon filling tube 32 .

Preferably, there are four main pipe interfaces 2, which are arranged symmetrically on both sides of the main pipe 1 . When the number of affected visceral arteries is less than four, a medical three-way cap can be installed on the main pipe interface 2 that is not connected with the branch pipe 3 .

Specifically, the branch pipe 3 is provided with a pipe branch port 4 at the connection portion between the branch pipe 3 and the main pipe port 2 . An outer casing 21 is arranged on the outside of the main pipe interface 2 , and an outer thread 22 is arranged on the outer casing 21 , and an abutment plate 23 is arranged on the end of the outer thread 22 . An external mouthpiece 41 is sheathed on the outside of the pipe branch interface 4 , and an internal thread 42 is provided on the inner wall of the external mouthpiece 41 . Wherein, the branch pipe interface 4 and the main pipe interface 2 are both elastic tubes, and the length of the external mouthpiece 41 is the same as that of the outer sleeve 21 .

Preferably, the length of the main conduit 1 and the branch conduit 2 is 20cm to 40cm. The maximum filling outer diameter of the main balloon 11 is 0 mm, and the maximum filling outer diameter of the branching balloon 31 is 20 mm.

In actual use, as shown in Figure 1, when it is necessary to use the internal flow tube provided by the present invention, first make incisions at the two ends of the abdominal aorta that need to be blocked, the diameter of the incision is smaller than the diameter of the main catheter 1, and the main catheter 1 Insert it into the aorta through the incision, and then fill the main tube balloon 11 with fluid at both ends through the main balloon filling tube 12 to inflate the main tube balloon 11 and block the blood flow at both ends of the aorta. The air in tube 1 is exhausted.

Then an incision will be made at the distal end of the visceral artery that needs to be blocked. The diameter of the incision is smaller than the diameter of the branch tube 3, and the branch tube 3 is inserted through the incision, and then the branch balloon 31 is filled with fluid through the branch balloon filling tube 32 to make the branch tube 31 expands and blocks the blood flow of the visceral artery, discharges the air in the branch pipe 3 through the pipe branch interface, and then connects the branch pipe 3 to the main pipe interface 2 through the branch pipe interface 4 .

Finally, a medical three-way cap is installed on the main pipe interface 2 that does not need to install the branch pipe 3, so as to maintain the blood supply function of the celiac visceral artery.

The specific embodiments of the present invention are described above so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

Claims (10)

1. An internal bypass tube for maintaining the blood supply of the celiac visceral artery, characterized in that it comprises a main duct and several branch ducts, the two ends of the main duct are open, and the positions adjacent to the two ends of the main duct are respectively provided with a balloon in charge, the balloon in charge The balloons are respectively connected to the main balloon filling tube, and several main tube interfaces are provided on the side wall of the main tube, and the branch tube is connected to the main tube through the main tube interface; both ends of the branch tube are open, and the end of the branch tube deviated from the main tube is provided with a branch tube The balloon is provided with a tube for filling the tube for the tube. 2. The internal bypass tube for maintaining the blood supply of the celiac visceral artery according to claim 1, characterized in that a medical three-way cap is installed on the main tube interface not connected with the branch tube. 3 . The internal bypass tube for maintaining the blood supply of the celiac visceral artery according to claim 1 , characterized in that, the connecting portion of the branch tube and the main tube interface is provided with a branch interface. 4 . 4. The internal bypass tube for maintaining the celiac visceral artery blood supply according to claim 3, characterized in that, an outer sleeve is provided outside the main pipe interface, an external thread is provided on the outer sleeve, and an external thread is provided on the end of the external thread. butt plate. 5 . The internal bypass tube for maintaining the blood supply of the celiac visceral artery according to claim 4 , wherein an external mouthpiece is sleeved on the outside of the branching interface, and an internal thread is provided on the inner wall of the external mouthpiece. 5 . 6 . The internal bypass tube for maintaining the blood supply of the celiac visceral artery according to claim , characterized in that, both the branch tube interface and the main tube interface are elastic tubes. 7 . The internal bypass tube for maintaining blood supply from the celiac visceral artery according to claim 1 , wherein the end of the branch tube is tapered. 8 . The internal bypass tube for maintaining the blood supply of the celiac visceral artery according to claim 1 , characterized in that there are four main tube ports, which are arranged symmetrically on both sides of the main tube. 9 . The internal bypass tube for maintaining the blood supply of the celiac visceral artery according to claim 1 , wherein the length of the main catheter and the branch catheter is 20 cm to 40 cm. 10 . The internal bypass tube for maintaining the blood supply of celiac visceral artery according to claim 1 , wherein the maximum filling outer diameter of the main tube balloon is 0 mm, and the maximum filling outer diameter of the branching balloon is 20 mm. 11 .