TWI719844B - Powder spray hemostatic device - Google Patents

Abstract

A powder spray hemostatic device is disclosed, including a medical-grade gas generator, a gas delivery controller, a powder container, and a powder delivery tube; the medical-grade gas generator comprising a main gas supply tube to output gas and connected to the gas delivery controller; the gas delivery controller comprising a first and a second gas supply tubes and controlling timing of both; the first gas supply tube being connected to the powder container, and the powder container being disposed with a one-way gas supply valve to prevent powder from flowing backward; the powder delivery tube being connected to an outlet end of the powder container, disposed with a powder passage inside, and a gas supply manifold on tube wall to communicate with the powder passage; the second gas supply tube being connected to the gas supply manifold, and the end of powder delivery tube connected to a powder spraying tube.

Description

Powder spray hemostatic device

The present invention relates to the technical field of a powder spraying hemostatic device, in particular to a medical device used in the human body and capable of spraying hemostatic powder.

Minimally invasive surgery is one of the most modern and new mainstream surgical techniques. The operation involves several small wounds (approximately 0.5-1.5 cm) instead of the previous large wound operation. With the advanced and clear endoscopic imaging system, the doctor can clearly know the location of the lesion through the imaging system, and the precise robotic arm is used to complete the operation. . Therefore, the surgical wound is smaller, the postoperative pain is reduced, the chance of bleeding and infection is also reduced. The recovery time is short and the aesthetics is also greatly improved, which is of great significance to the patient.

Although endoscopy can be used in minimally invasive surgery to observe the status of the operation, it still relies mainly on the use of various medical equipment for operation, but there are still some unpredictable conditions during the operation, such as local bleeding, which will endanger the life of the patient. It may cause the endoscopic lens to be blocked and affect the operation. In traditional open surgery, a large amount of hemostatic powder can be put on the bleeding site to achieve the purpose of rapid hemostasis. For this reason, the inventor thinks about how to use a small nozzle in a small working space in a minimally invasive surgery to cooperate with an endoscope. Under the guidance of the image, hemostatic powder is sprayed on the hemostatic area to cover the bleeding area and achieve hemostasis. The purpose of this, so it is necessary to innovate and research a group of special dedicated medical equipment. In addition, the powder nozzle of this medical device must prevent blood from entering the tube before it is operated, because this will cause the hemostatic powder to coagulate in the tube in advance and the blood will coagulate in the tube, and there will also be pollution problems. How to increase the product design Difficulty.

In order to solve the above-mentioned problems, the main purpose of the present invention is to provide a powder spraying hemostatic device, which mainly uses gas to feed the powder, and cooperates with the special air flow control method adopted by the present invention to maintain a small flow of air flow before spraying the hemostatic powder. Keep the pipeline unobstructed and prevent blood from entering. When you want to use it, switch the loop and send a large amount of intermittent gas to push the hemostatic powder, so that the hemostatic powder can cover the bleeding site accurately to achieve the purpose of hemostasis.

To achieve the above purpose, the powder spraying hemostatic device of the present invention includes a medical-grade gas generator, a gas delivery controller, a powder container and a powder delivery tube. The medical-grade gas generator is equipped with a main gas supply pipe to output gas. The gas delivery controller is provided with a first gas supply pipe and a second gas supply pipe, and the main gas supply pipe is connected to the gas delivery controller. The gas delivery controller controls the gas supply timing and flow rate of the first gas supply pipe and the second gas supply pipe. The powder container is provided with a container connector, a one-way air supply check valve, a cavity, and a hemostatic powder setting area in the cavity. The one-way air supply check valve is located in the cavity and next to the container connector. The first air supply pipe is connected to the container connector. , Supply air to the powder container in time; the powder delivery tube is connected in series to the outlet end of the powder container, the powder delivery tube has a powder channel inside, the tube wall is additionally provided with an air supply manifold communicating with the powder channel, and the second air supply tube is connected to the supply Gas manifold. The end of the powder delivery pipe is provided with a powder ejection pipe.

In a preferred embodiment of the present invention, the gas delivery controller allows only one of the first gas supply pipe and the second gas supply pipe to supply gas at the same time.

In a preferred embodiment of the present invention, the powder container is set upright when in use.

In a preferred embodiment of the present invention, the cavity is a transparent shell, and it can be immediately observed whether the hemostatic powder is sprayed out during operation.

In a preferred embodiment of the present invention, the gas delivery controller adopts intermittent gas supply.

In a preferred embodiment of the present invention, the powder ejection tube is a slender tube with a small diameter, and the particles of the hemostatic powder must be less than 30% of the inner diameter of the tube.

The powder spraying hemostatic device of the present invention has the following specific effects in use: 1. It can accurately spray hemostatic powder from the powder spray tube at the bleeding site to achieve the purpose of rapid hemostasis. 2. In the standby state, use the second air supply pipe to supply a small amount of gas, and then send it out through the powder ejection pipe to maintain the smoothness of the powder ejection pipe. On the one hand, it prevents blood from entering the pipe and causing pollution, and on the other hand, it also avoids when the hemostatic powder is sent out. It reacts with blood in the tube in advance and clots and blocks. 3. The powder container can be a transparent shell, and the spraying state can be confirmed immediately when the powder is sprayed. 4. The powder spraying hemostatic device of the present invention can be widely used in body cavity surgery, such as gastrointestinal surgery, or urinary tract surgery or tumor treatment, or other minimally invasive surgery that may cause major bleeding.

As shown in Figure 1 and Figure 2, respectively are a three-dimensional view and a schematic plan view of the powder spraying hemostatic device of the present invention. The powder spraying hemostatic device of the present invention includes a medical grade gas generator 1, a gas delivery controller 2, a powder container 3, and a powder delivery tube 4. The medical-grade gas generator 1 is responsible for outputting gas, and the gas delivery controller 2 switches the timing of the gas delivery to the powder container 3 and the powder delivery pipe 4. When there is no need to supply powder, a small flow of gas is provided first to be sent out through the powder delivery pipe 4 to keep the pipeline unblocked and avoid blood backflow. When the powder is to be sprayed later, a large amount of gas is supplied and the air flow is switched to the powder container 3, and the powder is sprayed through the powder delivery tube 4 so that the hemostatic area is covered by the hemostatic powder to achieve the purpose of rapid hemostasis.

Then make a detailed description of the structure of each component of the present invention:

The medical-grade gas generator 1 is an air compressor containing a medical-grade filter, and is provided with a main air supply pipe 11 to output the generated gas.

The gas delivery controller 2 is an electronic control valve for gas flow switching, and the main gas supply pipe 11 is connected here. The gas delivery controller 2 is additionally provided with a first gas supply pipe 21 and a second gas supply pipe 22 as gas output pipes. The gas delivery controller 2 controls the gas supply timing and flow rate of the first gas supply pipe 21 and the second gas supply pipe 22. In this embodiment, the gas delivery controller 2 supplies gas to only one of the first gas supply pipe 21 or the second gas supply pipe 22 at the same time. The end of the first air supply pipe 21 is connected to the powder container 3, and is responsible for supplying a large flow of gas, and the hemostatic powder 5 in the powder container 3 is sent out by the gas. The second air supply pipe 22 is connected to the side wall of the powder ejection pipe 4, and this pipe mainly provides a small flow of gas to keep the pipeline unblocked.

The powder container 3 is a long hollow tube, and from top to bottom are the container connector 31, the one-way air supply valve 32, and the cavity 33, respectively. The container connector 31 has a large-sized convex ring 311. The convex ring 311 can use other mechanisms or brackets to fix the position of the powder container 3 during use, so that the powder container 3 is upright or inclined at an angle. A cavity is formed in the cavity 33, where the hemostatic powder 5 is arranged. The cavity 33 is a transparent shell, and it can be immediately observed whether the hemostatic powder is sprayed out during operation. The hemostatic powder 5 is not limited to medical supplies, and can also be medical materials, plant or food powder, etc., as long as it has a dry powder that can improve hemostasis at the bleeding site. The one-way air supply check valve 32 is arranged in the cavity 33 close to the container connector 31. The one-way air supply check valve 32 only allows the gas to enter the cavity 33 from the container connector 31 to prevent the hemostatic powder 5 from flowing back into the first air supply pipe 21 when the air flow is switched. The outlet of the cavity 33 is serially connected to the powder output pipe 4.

The powder conveying pipe 4 is a three-directional T-shaped shunt pipe. The powder conveying pipe 4 has a powder passage 41 inside, and an air supply manifold 42 is provided on the wall of the pipe to communicate with the powder passage 41. The inlet of the powder channel 41 is connected to the cavity in the powder container 3, and the outlet is located at the end of the powder delivery pipe 4 and a powder ejection pipe 43 is provided. The powder ejection tube 43 is a slender tube with a small diameter, which is used to extend into the hemostasis of the body during the operation. The particles of the hemostatic powder 5 must be 30% smaller than the inner diameter of the powder ejection pipe 43 so that the gas can push the hemostatic powder 5 to be ejected through the powder ejection pipe 43 with a long and narrow diameter. The second air supply pipe 22 is connected to the air supply manifold 42.

Next, a detailed description will be given of the actual operation process of the present invention:

During the operation, the end of the powder ejection tube 43 can be guided to the bleeding site in cooperation with the operation of the endoscope. During the guiding placement process or in the state of waiting for operation, as shown in Figure 3, the medical-grade gas generator 1 The gas is continuously generated. The gas is switched by the gas delivery controller 2 and a small flow of gas is supplied through the second air supply pipe 22, the powder output pipe 4, and the powder ejection pipe 43. This small flow of gas can maintain the powder ejection pipe 43 unblocked and avoid foreign matter or The blood penetrates into the powder ejection tube 43.

As shown in Figure 4, when powder is to be sprayed from the bleeding area, the gas delivery controller 2 switches to stop the gas supply from the second gas supply pipe 22, and instead supplies a large amount of gas to the first gas supply pipe 21. This method can Use intermittent mass gas supply, let the gas pass through the one-way gas supply valve 32 in the powder container 3, push the hemostatic powder 5 in the cavity 33 into the powder channel 41 of the powder delivery pipe 4, and finally pass through the powder ejection pipe 43 Spray hemostatic powder 5 on the bleeding site. The one-way gas supply check valve 32 can prevent backflow of gas and powder when the gas stops, and avoid powder contamination. In addition, the use of intermittent gas in the present invention can avoid the phenomenon that the powder is only sprayed out of the powder due to the bridging phenomenon when the gas is continuously sprayed, and the intermittent action of the gas can also reduce the phenomenon of excessive flying of the powder and affect the adhesion effect. In addition, the powder container 3 can be set upright to facilitate the effective spraying of the powder. In this way, the present invention can meet the purpose of using endoscopes, intracavitary surgery such as gastrointestinal surgery, or urinary tract surgery or tumor treatment, which may require rapid hemostasis.

The above descriptions are only used to explain the preferred embodiments of the present invention, and are not intended to restrict the present invention in any form. Therefore, any modification or change related to the present invention is made under the same spirit of the invention. , Should still be included in the scope of the present invention's intended protection.

1: Medical grade gas generator 11: Main air supply pipe 2: Gas delivery controller 21: The first air supply pipe 22: The second air supply pipe 3: powder container 4: Powder delivery tube 41: Powder channel 42: gas supply manifold 43: Powder ejection tube 5: Hemostatic powder

Figure 1 is a perspective view of the present invention;

Figure 2 is a plan view of the present invention;

Fig. 3 is a schematic diagram of the gas flow direction in the preparation state of the present invention;

Fig. 4 is a schematic diagram of the flow direction of powder spraying when the present invention is used.

1: Medical grade gas generator

11: Main air supply pipe

2: Gas delivery controller

21: The first air supply pipe

22: The second air supply pipe

3: powder container

31: Vessel connector

311: Convex Ring

32: Gas one-way check valve

33: Cavity

4: Powder delivery tube

42: gas supply manifold

43: Powder ejection tube

5: Hemostatic powder

Claims (3)

A powder spraying hemostatic device, comprising: a medical-grade gas generator with a main gas supply pipe to output gas; a gas delivery controller with a first gas supply pipe and a second gas supply pipe, the main gas supply pipe is connected to the gas delivery The gas delivery controller controls the timing and flow rate of the first air supply pipe and the second air supply pipe. The gas delivery controller only makes the first air supply pipe and the second air supply pipe at the same time. One of the two gas pipes supplies gas, and the gas delivery controller outputs intermittent gas through the first gas supply pipe; a powder container, which is a long hollow pipe, includes a container joint, a one-way gas supply check valve, and a cavity , The hemostatic powder setting area in the cavity, the one-way air supply check valve is located in the cavity and is adjacent to the container connector, the first air supply tube is connected to the container connector; a powder delivery tube in a three-way T-shaped shunt A tube is connected in series to the outlet end of the powder container. The powder delivery tube has a powder channel inside. The tube wall is additionally provided with an air supply manifold communicating with the powder channel. The second air supply tube is connected to the air supply manifold. The end of the delivery pipe is provided with a powder ejection pipe. According to the powder spraying hemostatic device according to claim 1, the powder container is set upright when in use. According to the powder spraying hemostatic device according to claim 1, the cavity is a transparent shell.

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