CN201759619U - arterial shunt plug - Google Patents

Abstract

The utility model discloses an artery reposition of redundant personnel bolt, including the artery shunt, lead wire and the external fixing device of disc shape, this artery shunt is connected through the lead wire with the external fixing device of disc shape, and wherein, this artery shunt is for having physics, silica gel or medical polyurethane material that chemical properties is good, and this external fixing device of disc shape is silica gel or medical polyurethane material that biocompatibility is good, and this external fixing device of disc shape is one side smooth, and the another side is carved with the stripe, the utility model discloses be applied to the coronary artery that cuts, conveniently insert, the anastomotic stoma shows, and external part easily places in the heart surface, makes the art person beat under the heart, and swift and convenient coronary artery blood vessel that carries on coincide to reduce the myocardial ischemia time, improve the security of operation.

Description

arterial shunt plug

technical field

The utility model relates to the arterial shunt device field technology, in particular to an arterial shunt embolus which is applied in beating coronary artery bypass grafting in cardiac surgery, provides a bloodless operation field, and facilitates blood vessel anastomosis.

Background technique

Coronary atherosclerotic heart disease is the main killer of human health. The incidence of coronary heart disease in my country is relatively high, and it is increasing year by year. Nearly tens of thousands of patients need coronary artery bypass grafting every year, of which off-pump coronary artery bypass grafting accounts for more than 40%. At present, in beating coronary artery bypass grafting, imported arterial shunt plugs are mainly used, which are implanted in the coronary artery at the incision of the beating heart for coronary artery anastomosis. The arterial shunt plug currently used has the following disadvantages:

1. The hardness of the end of the arterial shunt plug is not enough, which makes it difficult for the operator to insert the coronary artery after incision.

2. In off-pump coronary artery bypass grafting, the external fixation device of the arterial shunt plug is too light, which leads to the bending of the lead wire, which often brings inconvenience to the anastomosis of blood vessels.

3. In off-pump coronary artery bypass grafting, the anastomosis often needs to be fully exposed due to the anastomosis of special parts. The surface of the disc-shaped external fixation device of the shunt plug is too smooth, and it is difficult to place it on the surface of the beating heart at a specific part , often slipping, affecting the anastomosis.

Utility model content

The utility model aims at the deficiency of the prior art, and its main purpose is to provide an arterial shunt plug, which can be used in beating coronary artery bypass grafting in cardiac surgery, provides a bloodless operation field, facilitates blood vessel anastomosis, and reduces Myocardial ischemia time, improve the safety of surgery.

In order to achieve the above object, the utility model adopts the following technical solutions:

An arterial shunt embolus comprises a lead wire, a disc-shaped external fixation device and an arterial shunt made of medical polyurethane material, and the arterial shunt is connected with the disc-shaped external fixation device through a lead wire.

As a preferred solution, the disc-shaped external fixing device is made of high-density PVC material.

As a preferred solution, one side of the disc-shaped external fixing device is smooth, and the other side is engraved with stripes.

As a preferred solution, the stripes are grid patterns.

As a preferred solution, the two insertion ends of the arterial shunt are diameter-reducing protrusions.

Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be known from the above technical solutions:

First, by making the arterial shunt with silicone or medical polyurethane materials with good physical and chemical properties, the hardness of the arterial shunt is increased, making it easier to insert during surgery;

Secondly, the disc-shaped external fixation device is made of silicone or medical polyurethane material, which increases the weight of the disc-shaped external fixation device, reduces the bending of the lead wire during the operation, and facilitates vascular anastomosis;

Furthermore, stripes are arranged on the surface of the disc-shaped external fixation device to increase the friction coefficient of the heart surface, so that the disc-shaped external fixation device is placed on the surface of the beating heart at a specific part without slipping, which facilitates blood vessel anastomosis .

In a word, the utility model is applied to the cut coronary artery, which is convenient for insertion, and the anastomotic stoma is well exposed. Reduce myocardial ischemia time and improve the safety of operation.

In order to more clearly illustrate the structural features and effects of the utility model, the utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments:

Description of drawings

Fig. 1 is a structural representation of a preferred embodiment of the utility model;

Fig. 2 is a structural diagram of an arterial shunt placed in a blood vessel according to a preferred embodiment of the present invention.

Explanation of the accompanying drawings:

1. Arterial shunt 2. Lead wire

11. Protrusion 3. Disc-shaped external fixing device

Detailed ways:

With reference to Fig. 1 to shown in Fig. 2, it has shown the specific structure of the preferred embodiment of the present utility model, comprises an arterial shunt 1, a lead wire 2 and a disc-shaped external fixation device 3, arterial shunt 1 It is connected with the disc-shaped external fixing device 3 through the lead wire 2, wherein:

The arterial shunt 1 is made of silica gel or medical polyurethane material with good physical and chemical properties, so that the arterial shunt 1 has high hardness and good antithrombotic performance. The two insertion ends of the arterial shunt are variable diameter protrusions 11, so that the The arterial shunt is easier to place in the incised coronary vessel during the operation, which can reduce the ischemic time at the distal end of the coronary vessel and improve the safety of the operation.

The disc-shaped external fixation device 3 is made of silica gel or medical polyurethane material, which increases the weight of the disc-shaped external fixation device 3 . In addition, the disc-shaped external fixation device 3 is smooth on one side, and stripes are engraved on the other side, which is used to increase the friction coefficient of the surface of the heart, making it easy to naturally sag or be placed on the surface of a specific beating heart as required. In this example, the stripes are grid patterns.

The lead wire 2 is a prior art, which will not be repeated here.

When working, fix the heart stabilizer on the target coronary vessel of the beating heart and adjust it to the best exposure position. The target vessel is separated suddenly, and the target vessel is clearly exposed. The assistant gently clamps the proximal end of the target vessel with a non-invasive vascular forceps. The operator cuts the target vessel with a coronary sharp knife. The incision is 1.5-2.0 times the diameter of the target vessel, and implants quickly Arterial shunt 1 is adjusted to the best position available for anastomosis. At the same time, rinse the coronary anastomosis with a _CO2 blowpipe or a 20ml syringe with a needle to fully expose the anastomosis to ensure a clear anastomosis. 1. At the same time, the anastomotic suture is knotted to complete the operation.

The following uses animal experiments as an example to further illustrate:

1. Purpose: To study the method and safety of arterial shunt plug in beating heart coronary artery bypass grafting.

2. Method: Three adult sheep (40-45kg) were selected, and the sternum was opened in the middle, and the sternum was retracted with a sternal retractor, and the pericardium was cut and fixed to fully expose the heart. Experimental animals were treated with half a dose of heparin (100-200U/kg), and the ACT was maintained at 250-350 seconds. Pericardial sutures were used to expose the left anterior descending branch, diagonal branch, right coronary artery, posterior descending branch, left ventricular posterior branch, and obtuse border branch of the circumflex branch, and the corresponding target vessels were fixed with a heart stabilizer. , the surgeon incised the corresponding coronary artery, and at the same time implanted an arterial shunt plug with a matching inner diameter, flushed the coronary anastomosis site with a 20ml syringe with a needle, fully exposed the anastomosis, and applied 7-0 Prolene to continuously anastomose the coronary artery incision, anastomosis After completion, the last two stitches are not pulled closer to ensure smooth removal of the arterial shunt, and at the same time, the anastomotic suture is tied to complete the operation. The operation went well and the animal's circulation was stable.

3. Results: Experiments show that in off-pump coronary artery bypass grafting, the arterial shunt plug can be easily placed, and the anastomosis of the target vessel is clearly exposed, which is convenient for anastomosis. At the same time, it is easy to take out after anastomosis, and there is no thrombus in the arterial shunt plug.

4. Conclusion: This arterial shunt plug can be conveniently and safely applied to off-pump coronary artery bypass grafting.

The key points of the design of the utility model are: firstly, the arterial shunt is made of silica gel or medical polyurethane material to improve the hardness of the arterial shunt, so that it is easy to insert during operation;

Secondly, the disc-shaped external fixation device is made of silicone or medical polyurethane material, which increases the weight of the disc-shaped external fixation device, reduces the bending of the lead wire during the operation, and facilitates blood vessel anastomosis;

Furthermore, the disc-shaped external fixation device is smooth on one side and engraved with stripes on the other side to increase the friction coefficient of the heart surface, so that the disc-shaped external fixation device is placed on the surface of the beating heart at a specific part without slipping, which is convenient. Vascular anastomosis.

In a word, the utility model is applied to the cut coronary artery, which is convenient for insertion, the anastomosis is well exposed, and the external part is easy to be placed in various parts of the heart, so that the operator can perform coronary anastomosis quickly and conveniently under the beating of the heart. Thereby reducing myocardial ischemia time and improving the safety of operation.

The above are only preferred embodiments of the present utility model, and do not limit the technical scope of the present utility model, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present utility model , all still belong to the scope of the technical solution of the utility model.

Claims (5)

1. An arterial shunt embolus is characterized in that: it comprises a lead wire, a disc-shaped external fixation device and an arterial shunt made of silica gel or medical polyurethane, and the arterial shunt and the disc-shaped external fixation device pass through the lead wire connected. 2. The arterial shunt plug according to claim 1, characterized in that: the disc-shaped external fixation device is made of silica gel or medical polyurethane material. 3. The arterial shunt plug according to claim 1, characterized in that: one side of the disc-shaped external fixation device is smooth, and the other side is engraved with stripes. 4. The arterial shunt plug according to claim 3, characterized in that: the stripes are grid patterns. 5. The arterial shunt plug according to claim 1, characterized in that: the two insertion ends of the arterial shunt are diameter-reducing protrusions. the

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