TWM597150U - Powder spray hemostat - Google Patents

Abstract

A powder spray hemostat includes a medical-grade gas generator, a gas delivery controller, a powder container and a powder delivery tube; the medical-grade gas generator is provided with a main gas supply tube to output gas and is connected to the gas delivery controller; the gas delivery controller is provided There is a first gas supply pipe and a second gas supply pipe and control the gas supply timing of the two; the first gas supply pipe is connected to the powder container, and a one-way gas supply check valve is provided in the powder container to avoid powder backflow; the powder delivery pipe is connected in series to the powder At the outlet end of the container, there is a powder channel inside the powder delivery tube, and a gas supply manifold is connected to the powder channel on the wall, the second gas supply tube is connected to the gas supply manifold, and the powder delivery tube is also connected to the powder injection tube at the end; This creation can prevent the powder spray tube from being blocked or contaminated before being used, and can accurately control the powder spraying amount and timing.

Description

Powder spray hemostat

This creation is a technical field of powder spray hemostatic device, especially refers to a medical device for human body that can spray hemostatic powder.

Minimally invasive surgery is a most modern and new mainstream surgical technique. The operation replaces the previous operation of a large wound through several small wounds (about 0.5-1.5 cm), and with the advanced and clear endoscopy imaging system, the physician can clearly know the location of the lesion through the imaging system, and complete the operation with a precision mechanical arm . Therefore, the surgical wound is smaller, and postoperative pain is reduced, and the chance of bleeding and infection is also reduced. The recovery time is short and the appearance is also greatly improved, which is of great significance to the patient.

Although endoscopy can be used to observe the operation status during minimally invasive surgery, it still mainly relies on various types of medical equipment for operation. However, some unpredictable conditions may still occur during the operation, such as local bleeding, which will endanger the life of the patient and also The internal view lens may be blocked, which may affect the operation. Traditional open surgery can put a lot of hemostatic powder on the bleeding site to achieve the purpose of rapid hemostasis. To this end, the author thinks about how to use a small nozzle and an endoscope in a small working space in a minimally invasive surgery. Under the guidance of the image, hemostatic powder is sprayed on the hemostatic area to cover the bleeding area to achieve hemostasis. The purpose of this is to innovate and research a group of special medical equipment. In addition, before the operation of the powder nozzle of this medical device, blood must be prevented from entering the tube, because this will cause the hemostatic powder to coagulate with the blood in the tube in advance and cause blockage in the tube, and there will also be pollution problems. How to increase the product design On the difficulty.

In order to solve the above problems, the main purpose of this creation is to provide a powder spray hemostat, which mainly uses gas to feed the powder, in conjunction with the special air flow control method adopted in this creation, to maintain a small flow of air flow before the hemostatic powder is sprayed, Keep the pipeline clear and prevent blood from entering. When you want to use it, switch the circuit and send a large amount of intermittent gas to push the hemostatic powder, so that the hemostatic powder can accurately cover the bleeding site to achieve the purpose of hemostasis.

In order to achieve the above purpose, the powder spray 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 provided 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 joint, a one-way air supply check valve, a cavity, and a region for setting the blood powder in the cavity. The one-way air supply check valve is located in the cavity and is close to the container joint. The aforementioned first air supply pipe is connected to the container joint , Timely supply air into the powder container; the powder conveying pipe is connected in series with the powder container outlet, the powder conveying pipe has a powder channel inside, the pipe wall is also provided with a gas supply manifold to communicate with the powder channel, and the second gas supply pipe is connected to the supply Gas manifold. A powder ejection tube is provided at the end of the powder conveying tube.

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

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

In the preferred embodiment of the present invention, the cavity is a transparent shell, and it is possible to immediately observe whether the hemostatic powder is ejected during operation.

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

The powder spray hemostatic device of this creation has the following specific effects in use: 1. It can spray the hemostatic powder from the powder spray tube precisely at the bleeding site to achieve the purpose of rapid hemostasis. 2. In the standby state, use the second gas supply tube to supply a small amount of gas, and then send it out through the powder ejection tube to maintain the smoothness of the powder ejection tube. It reacts with the blood in the tube in advance to clot and block it. 3. The powder container can be a transparent shell, and the discharge status can be confirmed immediately when the powder is discharged. 4. This creative powder spray hemostat 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 Figures 1 and 2, they are respectively a perspective view and a schematic plan view of a powder spray hemostat created by the author. The creative powder spray hemostat 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 the gas, and the gas delivery controller 2 switches the timing of the gas to the powder container 3 and the powder delivery tube 4. When there is no need to supply powder, the gas with a small flow rate is first sent out through the powder delivery tube 4 to maintain the smoothness of the pipeline and avoid blood backflow. Later, when powder is to be sprayed, a large amount of gas is supplied and the gas flow is switched to the powder container 3, and the powder is sprayed through the powder delivery tube 4, so that the hemostatic site is covered with the hemostatic powder to achieve rapid hemostasis.

Then give a detailed explanation of the structure of each component of this creation:

The medical-grade gas generator 1 is an air compressor containing a medical-grade filter, and is provided with a main gas 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 thereto. The gas delivery controller 2 is further 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 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 gas 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 gas 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 maintain the smoothness of the pipeline.

The powder container 3 is an elongated hollow tube, and from top to bottom are a container joint 31, a one-way air supply valve 32, and a cavity 33, respectively. The container joint 31 has a large-sized convex ring 311, which can be used to fix the position of the powder container 3 by other mechanisms or supports during use, so that the powder container 3 is in an upright or oblique angle. A cavity is formed in the cavity 33, so far the area where the hemostatic powder 5 is installed. The cavity 33 is a transparent shell, and it can immediately observe whether the hemostatic powder is ejected during operation. The hemostatic powder 5 is not limited to medical supplies, but can also be medical materials, plants or food powders, etc., as long as it has a dry powder that can enhance hemostasis at the bleeding site. The one-way air supply check valve 32 is provided in the cavity 33 and is located adjacent to the container joint 31. The one-way gas supply check valve 32 only allows the gas to enter the cavity 33 from the container joint 31 to prevent the hemostatic powder 5 from flowing back into the first gas supply pipe 21 when the gas flow is switched. The outlet of the cavity 33 is connected in series with the powder output tube 4.

The powder delivery tube 4 is a T-shaped shunt tube in three directions. The powder conveying pipe 4 has a powder passage 41 inside, and a gas supply manifold 42 is further provided on the wall to communicate with the powder passage 41. The inlet of the powder passage 41 is a chamber that communicates with the powder container 3, and the outlet is located at the end of the powder delivery tube 4 and a powder ejection tube 43 is provided. The powder ejection tube 43 is an elongated tube with a small diameter, so as to extend into the hemostasis part of the body during surgery. The particles of the hemostatic powder 5 must be less than 30% of the inner diameter of the tube of the powder ejection tube 43, so that the gas can push the hemostatic powder 5 to be ejected through the powder ejection tube 43 of narrow and small diameter. The second air supply pipe 22 is connected to the air supply manifold 42.

Then give a detailed description of the actual operation process of this creation:

During the operation, the end of the powder injection tube 43 can be guided to the bleeding site in conjunction with the operation of the endoscope. During the placement of the guide or in the state of waiting for operation, as shown in FIG. 3, the medical-grade gas generator 1 The gas is continuously generated, and is switched by the gas delivery controller 2 and provides a small flow of gas to be sent through the second gas supply pipe 22, the powder output pipe 4, and the powder injection pipe 43. This small flow of gas can maintain the smooth flow of the powder injection pipe 43 to avoid foreign objects or Blood enters the powder discharge tube 43.

As shown in FIG. 4, when the powder is to be sprayed at the bleeding site, the gas delivery controller 2 switches to stop the gas supply of the second gas supply pipe 22, and instead supplies a large amount of gas to the first gas supply pipe 21. A large amount of gas is supplied intermittently, allowing the gas to pass through the one-way gas supply valve 32 in the powder container 3, pushing the hemostatic powder 5 in the cavity 33 into the powder channel 41 of the powder delivery tube 4, and finally passing through the powder discharge tube 43 Spray the 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 pollution. In addition, the use of intermittent gas in this creation can avoid the phenomenon that when the gas is continuously ejected, the powder cannot be ejected due to the bridging phenomenon, and the intermittent action of the gas will also reduce the effect of the powder due to excessive flying and affect the adhesion effect. In addition, the powder container 3 can be arranged in an upright shape to facilitate the powder to be effectively ejected. In this way, the creation can meet the purpose of using endoscopy, intracavity surgery such as gastrointestinal surgery, or urinary tract surgery or tumor treatment, which may require rapid hemostasis.

The above are only the preferred embodiments for explaining this creation, and are not intended to restrict the creation in any way, so any modification or change to this creation under the same spirit of creation , Should still be included in the scope of protection of this creative intention.

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

Figure 1 is a perspective view of the creation;

Figure 2 is a plan view of the creation;

Figure 3 is a schematic diagram of the direction of gas flow in preparation for the creation;

Fig. 4 is a schematic diagram of the flow direction of powder spraying during the creation and use.

1: Medical grade gas generator

11: Main air supply pipe

2: Gas delivery controller

21: The first gas supply tube

22: Second gas supply tube

3: powder container

31: Container joint

311: convex ring

32: Gas check valve

33: cavity

4: Powder delivery tube

42: Gas supply manifold

43: Powder discharge tube

5: Hemostatic powder

Claims (5)

A powder spray hemostatic device, including: A medical-grade gas generator with a main gas supply tube to output gas; A gas delivery controller is provided with a first gas supply pipe and a second gas supply pipe, the main gas supply pipe is connected to the gas delivery controller, and the gas supply controller controls the supply of the first gas supply pipe and the second gas supply pipe Gas timing and flow; A powder container includes a container joint, a one-way gas supply check valve, and a cavity. In the cavity, a region for setting the blood powder, the one-way gas supply check valve is located in the cavity and is close to the container joint, the first supply The trachea is connected to the container joint; A powder conveying pipe is connected in series to the outlet end of the powder container. The powder conveying pipe has a powder channel inside, and a gas supply manifold is provided on the wall of the pipe to communicate with the powder channel. A powder ejecting pipe is provided at the end of the powder conveying pipe. According to the powder spray hemostat of claim 1, the gas delivery controller supplies only one of the first gas supply pipe and the second gas supply pipe at the same time. The powder spray hemostat according to claim 1, the powder container is arranged upright when in use. The powder spray hemostat according to claim 1, the cavity is a transparent housing. The powder spray hemostat according to claim 1, wherein the gas delivery controller can output intermittent gas.

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