CN101152583A - An arterial blood diversion tube with a fixed structure - Google Patents

Abstract

The invention relates to the technical field of medical devices, and is an arterial blood diversion tube with a fixed structure used for limb vascular warfare and first aid for wounds. It consists of a blood diversion tube (1) and a fixed structure. The two ends of the blood diversion tube are The mouth is in the shape of an inclined plane, and a color bar can be arranged longitudinally on the wall of the blood diversion tube (1) and marked with a scale. The middle part of the blood diversion tube can be covered with a self-adhesive hemostatic film; the fixed structure is two balloons (2) or two fixed rings (3), and the balloon (2) consists of a balloon body. (2.1), balloon tube (2.2) and air delivery valve (2.3), the two balloon bodies are respectively wrapped outside the two ends of the blood diversion tube; the fixing ring (3) is respectively fixed on the blood diversion tube There are ring-shaped protrusions on the pipe wall outside the two ends of the pipe. The invention is simple in structure and easy to use. By establishing a temporary passage at the broken end of the blood vessel, it can quickly stop bleeding and ensure the blood supply of the limbs, reduce the risk of amputation, and meet the time requirement for transfer or evacuation treatment.

Description

An arterial blood diversion tube with a fixed structure

technical field

The invention relates to the technical field of medical devices, and relates to an arterial blood diversion tube with a fixed structure used for limb vascular warfare and trauma first aid.

Background technique

Limb vascular trauma is a common trauma in wartime, and it is not uncommon in accidents such as car accidents and industrial injuries. If timely treatment cannot be obtained, such as in wartime, there will often be high amputation rates, many complications, serious pollution, It is easy to cause shock and limb dysfunction, which seriously threatens the life and health of the wounded. This is because the main methods of vascular trauma treatment at home and abroad are hemostasis, ligation and vascular anastomosis. Among them, hemostasis, ligation, etc. are used in field rescue, and it is necessary to race against time. The purpose is to control bleeding and save lives. However, for some important blood vessels such as the carotid artery, iliac artery, and femoral artery, if they are ligated and cannot be anastomosed in time to restore their blood supply, serious consequences such as amputation, cerebral infarction or even death will result.

Vascular anastomosis is the preferred treatment option after vascular injury, but it must have sufficient time, good anesthesia, perfect instruments, and high surgical techniques. Therefore, in wartime, vascular anastomosis can only be carried out by sending the wounded to a rear hospital far away from the battlefield. It takes time to evacuate such wounded. Generally speaking, the ischemic time that can be tolerated by tissues is 6-8 hours. If this time is exceeded, even if the blood supply is restored, the recovery of limb function is not satisfactory, and even amputation is still required. DeBakey report (DeBakey ME, Simeone FA. Battle injuries of the arteries in World War II. An analysis of 2471 cases. Ann. Surg. 1946, 123: 534-579) limbs treated after 10h, 10～20h and 20h after injury Amputation rates of vascular injury were 36.7%, 48.8% and 68%. It is difficult to achieve ideal treatment requirements under general equipment conditions.

It is very important to improve the level of treatment of vascular trauma whether to find a simple and fast method that can not only meet the requirements of rapid ligation and hemostasis and quickly restore blood flow, but also maintain it for a long enough time to meet the time requirements for transferring or evacuating the wounded. significance.

Contents of the invention

The purpose of the present invention is to provide an arterial blood diversion tube with a fixed structure which can satisfy rapid ligation and hemostasis and quickly restore blood flow, and can maintain for a long enough time to meet the time requirement of transferring or evacuating the wounded.

The arterial blood diversion tube with a fixed structure of the present invention is composed of a blood diversion tube and a fixed structure. The blood diversion tube is a hollow tube with good tissue compatibility, high elasticity and toughness, such as a silicone tube, which acts as a temporary vascular access In order to facilitate the identification of the position of the blood diversion tube and the length of insertion, a color bar can be set in the vertical direction of the tube wall and marked with a scale. The middle part of the blood diversion tube can also be covered with a self-adhesive hemostatic film, so that the needle holes on the tube wall can be automatically closed after blood drawing or drug injection; the fixed structure is two balloons or two The fixed ring and the balloon are composed of a balloon body, a balloon tube and a one-way valve. The two balloon bodies are respectively wrapped outside the two ends of the blood diversion tube and connected with the balloon tube. The balloon tube is thinner. One side is integrated with the wall of the blood diversion tube, the tail of the balloon tube is slightly thicker, free from the blood diversion tube, the tail end is connected with the one-way valve, the one-way valve matches the connector of the syringe, and the syringe passes through the one-way valve. After the valve inflates or injects water into the balloon, the valve can prevent gas or water from leaking. It is generally better to inject normal saline to avoid adverse consequences in case the balloon is damaged; the fixing rings are respectively fixed on the two sides of the blood transfer tube An annular protrusion on the outer wall of the diverter tube outside the end tube. When the diversion tube is used to treat the wounded, the proximal end of the blood vessel injury is compressed with a tourniquet to stop the bleeding. After the wound is thoroughly debrided, the package is unpacked and sterilized, and the two ends of the blood diversion tube are respectively inserted into the two ends of the blood vessel to the bulb. The balloon or fixing ring should be inserted into the mouth of the tube for an appropriate length. When it is a balloon, inject water into the balloon body with a syringe. After the balloon is inflated, it will be fixed on the blood vessel wall without prolapse. When it is a fixing ring, it needs to be ligated and fixed with silk thread. In this way, the purpose of rapid hemostasis and rapid recovery of blood flow can be achieved, and it can be maintained for a long enough time for the transfer or rescue of the wounded and sick, until it is removed when operations such as vascular anastomosis are performed. Arterial blood bypass catheters with balloons are especially suitable for situations where the vessel exposure is short and inconvenient to ligate.

The present invention is simple in structure and easy to use. A temporary passage is directly established at the broken end of the blood vessel through the arterial bypass tube. Firstly, it plays the role of rapid hemostasis and fixation. Secondly, it is covered with a self-adhesive hemostatic film part in the middle, which can be used for repeated puncture and is convenient for blood indicators. In addition, temporary vascular access can be quickly established to ensure the blood supply of limbs, reduce the risk of amputation, and meet the time requirements for transfer or evacuation, so that delicate and demanding procedures such as vascular anastomosis can be re-implemented under good conditions in the rear hospital. Higher surgery, thereby improving the treatment level of vascular warfare and trauma. The arterial bypass tube of the present invention can be made of silica gel with good tissue compatibility, smooth surface, not easy to form thrombus, good elasticity and strength, and low cost.

Description of drawings

Fig. 1 is a schematic view of the overall structure of the balloon as the fixing structure of the present invention.

Fig. 2 is a schematic diagram of the top view of the overall structure of the fixed structure of the present invention as a fixed ring

Detailed ways

The present invention will be described in detail in conjunction with the accompanying drawings and embodiments.

The present invention consists of a blood diversion tube 1 and a fixed structure. The blood diversion tube is a hollow tube with good tissue compatibility, elasticity and toughness. Marked with a scale, the middle section of the blood transfer tube can also be covered with a self-adhesive hemostatic film; the fixed structure is two balloons 2 or two fixed rings 3, and the balloon 2 is composed of a balloon body 2.1 , a balloon tube 2.2 and a one-way valve 2.3. The two balloon bodies are respectively wrapped outside the tubes at both ends of the blood diversion tube and communicate with the balloon tube. The balloon tube is thinner, and one side is combined with the blood diversion tube. The wall is integrated, the tail of the balloon tube is slightly thicker, free from the blood transfer tube, the tail end is connected with the one-way valve, the one-way valve matches the connector of the syringe, and the balloon is inflated or filled with water through the one-way valve with the syringe , the valve can prevent gas or water from leaking; the fixing ring 3 is an annular protrusion fixed on the outer wall of the diversion tube at both ends of the blood diversion tube respectively.

Example 1. A kind of arterial blood bypass tube whose fixed structure is a balloon

The present invention is made of silica gel, and the blood diversion tube 1 has an outer diameter of 4mm, a wall thickness of 0.5mm, and a length of 60mm. The balloon 2 is composed of a balloon body 2.1, a balloon tube 2.2 and a one-way valve 2.3. The two balloon bodies are respectively wrapped outside the two ends of the blood diversion tube. The wall part of the blood diversion tube is 20 mm long, the inner diameter of the balloon tube is 2 mm, the free part of the tail is 20 mm long, and the outer diameter is 4 mm.

Example 2.

The blood diversion tube 1 of the present invention has an outer diameter of 5mm and a length of 80mm. The outer diameter of the balloon body after filling is 7mm. The wall part of the balloon tube and the blood diversion tube is 25mm long. Hemostatic film, all the other are with embodiment 1.

Example 3.

The blood diversion tube 1 of the present invention has an outer diameter of 7mm and a length of 150mm. After the balloon is inflated, the outer diameter is 9mm, and a color bar is set longitudinally on the tube wall and marked with a scale. The middle part of the tube wall is covered with a 50mm long self-adhesive hemostatic film, and the wall part of the balloon tube and the blood diversion tube is 30mm long. , all the other are with embodiment 1.

Embodiment 4. An arterial blood bypass tube whose fixing structure is a fixing ring

The present invention is made of silica gel, and the blood diversion tube 1 has an outer diameter of 6mm and a length of 60mm. The 2 fixing rings have an outer diameter of 8mm and a width of 2mm.

Example 5.

The blood diversion tube 1 of the present invention has a diameter of 8 mm and a length of 80 mm. The outer diameters of the two fixing rings are 8 mm. A color bar is arranged longitudinally on the tube wall and marked with scales. The rest are the same as in Embodiment 4.

Example 6.

The blood diversion tube 1 of the present invention has a diameter of 8 mm and a length of 120 mm. The outer diameters of the two fixing rings are 10 mm. Self-adhesive hemostatic film outside the wall, and the rest are the same as in Example 4.

The present invention can be made into different specifications and models according to the difference of the inner diameter of the artery.

Claims (4)

1. An arterial blood diversion tube with a fixed structure is characterized in that it is made up of a blood diversion tube (1) and a fixed structure, the blood diversion tube is a hollow tube, and the nozzles at both ends are inclined-plane-shaped; said The fixing structure is two balloons (2) or two fixing rings (3), and the balloon (2) is composed of a balloon body (2.1), a balloon tube (2.2) and a one-way valve (2.3). The balloon body is respectively wrapped outside the two ends of the blood diversion tube and connected with the balloon tube. The balloon tube is thinner, and one side is integrated with the wall of the blood diversion tube. The tail of the balloon tube is slightly thicker and free from the blood. Outside the diversion tube, the tail end is connected to the one-way valve (2.3), and the one-way valve matches the connector of the syringe; the fixing ring (3) is the outer wall of the blood diversion tube fixed on the two ends of the blood diversion tube respectively ring-shaped protrusion. 2. The arterial blood shunt tube with fixed structure according to claim 1, characterized in that a color bar is longitudinally arranged on the wall of said blood shunt tube (1) and marked with a scale. 3. The arterial blood diversion tube with a fixed structure according to claim 1 or 2, characterized in that the middle section of the blood diversion tube is covered with a self-adhesive hemostatic film. 4. The arterial blood diversion tube with fixed structure according to claim 1, 2 or 3, characterized in that it is made of medical silicone material.

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