KR102077790B1 - Powder spray device in which the spray amount is controllable - Google Patents

Abstract

The present invention relates to a powder injector of a two-way air flow method capable of uniformly injecting a powdery substance onto the target site.
The powder injector according to the present invention adopts a two-way air flow method to separate the air flow causing the injection of the powder and the air flow for transferring the powder from the reservoir to the nozzle, thereby smoothly injecting the powder. In addition, it has a structure that can adjust the proportion of the powder contained in the injected air, and also, the terminal height of the first flow path for delivering air to the storage unit is set higher than the receiving height of the powder accommodated in the storage unit to the powder flow back There is an effect that can improve the phenomenon.

Description

Powder spray device in which the spray amount is controllable}

The present invention relates to a powder injector capable of adjusting the injection amount, and more particularly to a powder injector capable of adjusting the ratio of powder contained in the air to be injected.

Powder injectors are used to inject powdered medication into the surgical or affected area. The powder spraying device is required to adjust the air blowing force and the amount of powder according to the situation for proper use.

In connection with such a powder injector, Republic of Korea Patent No. 10-1397600 (2013.06.10.) Discloses a powder injector for discharging the drug in the drug receiving space to the outside using a bellows-type air supply. On the other hand, the patent provides a simple disposable injection device, but there is a disadvantage that the low injection force and the injection amount adjustment is impossible.

In addition, the Republic of Korea Patent No. 10-1341821 (2013.12.10.) Discloses a powder injector (medical powder injector) for applying the drug to the wound site having a compressor for producing air by the control of the control panel have. However, the powder injector is inconvenient to control the injection force and the injection amount by the amount of air without a separate powder control device as a method using a separate power or compressed air.

Republic of Korea Patent No. 10-1722760 discloses a powder injector (powder injection dispenser) in which the condensation of the conduit and the condensation of water to the conduit to improve the phenomenon. However, it is necessary to inject the powder using a separate power source or compressed air as in the aforementioned patent, and it is impossible to control the amount of powder during the injection.

As such, the conventional powder injector has to be controlled to the injection force and the injection amount of the powdered drug according to the situation, but if not, there is a problem in that to apply more than necessary amount.

In particular, one-way air flow of the above-described powder injector, it was difficult to obtain a satisfactory injection force, and even in the case of the two-way air flow method it is impossible to control the ratio of powder in the air to be injected there was.

Therefore, a situation that requires the development of a powder injection device that can solve these problems.

Republic of Korea Patent No. 10-1397600 Republic of Korea Patent No. 10-1341821 Republic of Korea Patent No. 10-17222760

The present invention is to solve the above-described problems, to provide a powder injector of the two-way air flow method that can uniformly inject the quantitative powder to the target site.

In particular, it is an object of the present invention to provide a powder injector capable of adjusting the injection amount to adjust the injection amount of the powder to be injected.

In addition, an object of the present invention is to provide a powder injector capable of improving a blockage of a flow path due to entanglement of powder and a phenomenon in which the powder flows backward.

In order to achieve the above object,

In one embodiment of the invention,

An injection unit for injecting powder through the nozzle;

An air supply unit fluidly connected to one side of the injection unit to supply air; And

A storage unit which is fastened to an upper part of the injection unit and stores powder; Including;

Jet

A first flow path for supplying air supplied from the air supply part into the storage part;

A second passage receiving air from the air supply and discharging powder through a nozzle;

A third flow passage communicating with the storage portion and the second flow passage to supply the powder contained in the storage portion to the second flow passage; And

An area in which the second and third euros are laminated; Including;

Including an injection amount control unit in the region where the second flow path and the third flow path,

The height of the end of the first flow path provides a powder injector, characterized in that formed higher than the receiving height of the powder accommodated in the storage.

The powder injector according to the present invention adopts a two-way air flow method to separate the air flow causing the injection of the powder and the air flow for transferring the powder from the reservoir to the nozzle, thereby smoothly injecting the powder.

In particular, the powder injector according to the present invention includes an injection amount control unit, it is possible to easily adjust the ratio of the powder contained in the air to be injected.

In addition, the terminal height of the first passage for delivering air to the storage unit is set higher than the accommodation height of the powder accommodated in the storage unit has the effect of improving the phenomenon that the powder flow back to the air supply.

1 is a side view of a powder injector according to an embodiment of the present invention.
2 is an exploded perspective view of a powder injector according to an embodiment of the present invention.
3 and 4 are cross-sectional views of the powder injector according to an embodiment of the present invention.
5 is a view for explaining the venturi structure of the powder injector according to an embodiment of the present invention.
Figure 6 is a view showing the injection amount control unit of the powder injector according to an embodiment of the present invention ((a) before the combination of the valve chamber and the valve plate, (b) after the combination of the valve chamber and the valve plate).
7 is a view illustrating the use of the powder injector according to an embodiment of the present invention using the injection amount adjusting unit ((a) opening of the first outlet, (b) opening of the second outlet, and (c) opening of the third outlet).
8 is a view showing a connection pipe and the contact preventing member of the powder injection apparatus according to an embodiment of the present invention.
9 is a diagram illustrating the use of a powder injector according to an embodiment of the present invention.

The present invention relates to a powder injector, and relates to a powder injector capable of uniformly injecting powder onto a target portion.

The powder injector according to the present invention adopts a two-way air flow method to separate the air flow causing the injection of the powder and the air flow for transferring the powder from the reservoir to the nozzle, thereby smoothly injecting the powder.

In particular, the powder injector according to the present invention includes an injection amount adjusting unit, it is possible to easily adjust the injection amount of the powder to be injected.

In addition, the terminal height of the first passage for delivering air to the storage unit is set higher than the accommodation height of the powder accommodated in the storage unit has the effect of improving the phenomenon that the powder flow back.

Prior to the description, the term "powder injector" in the terms used in the present invention means an injector for injecting powder into a target site, preferably a surgical site or an affected area. Here, the powder may be a powder having an average particle diameter in the range of 1 to 1000 μm, and may be a powdered drug, cosmetics, or the like. On the other hand, when the powder is a drug, it may be a hemostatic agent, antibiotics, fungicides, etc., preferably may mean a hemostatic agent.

Among the terms used in the present invention, "one side" refers to a side for supplying air based on the injection unit, and means the opposite side of the nozzle to which the powder is injected. "Other side" means a side from which air and powder supplied on the basis of the injection unit are discharged, and means an opposite side to one side.

In addition, the term "end" means, in any configuration, the far end, ie, one end, and the term "end of the first flow path" means the end of the first flow path. For reference, one end of the first channel may mean an end connected to the air supply, and the end of the first channel may mean an end from which air is discharged from the first channel, which is the end of the first channel connected to the air supply. have.

In addition, the term "target site" refers to a biological site to provide a powder, it may mean a surgical site or affected area.

On the other hand, the air provided by the air supply may mean a kind of compressed air, specifically, by applying pressure to reduce the volume may mean high-pressure compressed air.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the present specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that it can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

1 is a side view of a powder injector according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of a powder injector according to an embodiment of the present invention, and FIGS. 3 and 4 are powders according to an embodiment of the present invention. 5 is a view illustrating a venturi structure of a powder injector according to an embodiment of the present invention, and FIG. 6 is a view illustrating an injection amount adjusting unit of a powder injector according to an embodiment of the present invention. (a) before coupling the valve chamber and the valve plate, (b) after coupling the valve chamber and the valve plate), FIG. 7 is a view of the use of the powder injector according to an embodiment of the present invention using the nozzle adjustment section (( a) opening the first outlet, (b) opening the second outlet, (c) opening the third outlet), FIG. 8 is a view showing a connection pipe and a contact preventing member of the powder injector according to an embodiment of the present invention; 9 is the use of a powder injector according to an embodiment of the present invention An attitude.

Hereinafter, the powder injector of the present invention will be described in detail with reference to FIGS. 1 to 9.

The present invention relates to a powder injector, and more particularly, to a powder injector capable of uniformly injecting powder onto a target portion and easily controlling the amount of powder to be injected.

1 and 2, the powder injector 10 according to an exemplary embodiment of the present invention includes an injector 100, an air supply unit 200, and a storage unit 300.

More specifically, the powder injector 10 according to an embodiment of the present invention is connected to one side of the injection unit 100, the injection unit 100 for injecting the powder to the target portion through the nozzle 121, air It is fastened to the top of the air supply unit 200, the injection unit 100 for supplying, and comprises a storage unit 300 for storing the powder.

That is, the powder injector 10 according to the embodiment of the present invention receives the air from the air supply unit 200, the powder injection to spray the powder stored in the storage unit 300 to the target site through the injection unit 100 Relates to a device (10).

On the other hand, the powder injector 10 according to an embodiment of the present invention can be used for the purpose of injecting the powder, the powder stored in the storage unit 300 may be any component. However, the powder used in the powder injector 10 may be used as a device for injecting a powder such as a hemostatic agent during open surgery or surgery of internal tissues.

In addition, the storage unit 300 is a space for storing the powder, and is fastened to the connecting means 140 formed in the injection unit 100, whereby the first passage 110 and the third passage of the injection unit 100 to be described later. 130 may be in communication with each other.

As the material, plastics, glass, metals and the like can be appropriately selected and used within the range of not reacting with the contents.

Hereinafter, the injection unit 100 of the powder injector 10 according to an embodiment of the present invention will be described in detail with reference to FIGS. 3 and 4.

The injection unit 100 of the injector 10 according to an embodiment of the present invention has a first flow path 110 and an air supply unit 200 for supplying air supplied from the air supply unit 200 into the storage unit 300. The second flow path 120 and the storage 300 and the second flow path 120 for discharging the powder through the nozzle 121 receives the air supplied from the second flow path to the powder contained in the storage 300 And a third flow path 130 for supplying to 120.

First, the first flow path 110 is a pipe for transferring the air supplied from the air supply unit 200 into the storage unit 300 in which the powder 1 is stored. Specifically, one side of the first passage 110 is in communication with the air supply unit 200, the other side is in communication with the storage unit 300 for receiving the powder (1). At this time, the other side of the first flow path 110 is in communication with the storage unit 300, the storage unit 300 is extended in the longitudinal direction in the upper direction of the storage unit 300 to supply air from the air supply unit 200 You can guide.

The first passage 110 in the storage unit 300 may be connected to the central axis of the storage unit 300 and may be formed to extend in the longitudinal direction.

At this time, the end of the first passage 110 is characterized in that it is higher than the accommodation height of the powder (1) accommodated in the storage unit 300. Here, the end of the first channel 110 means the other end of the first channel (110).

Specifically, the receiving height of the end of the first passage 110 and the powder accommodated may form a predetermined height difference ΔH.

The height difference ΔH may be 0.5 cm or more. As an example, when the height of the storage unit 300 is 7 cm, the predetermined height difference ΔH may be formed to be at least 1.0 to 6.5 cm, considering that the powder is contained in the storage unit 300. have. For example, the height difference ΔH may be in the range of 1 to 6.5 cm.

Here, the first passage 110 is extended in the longitudinal direction to transfer the air supplied from the air supply unit 200 to the upper portion of the storage unit 300, by the air transferred to the storage unit 300. In order to easily discharge the powder 1 in the storage 300 into the third passage 130.

On the other hand, turbulence may occur in the storage unit 300 due to a pressure change, etc. In this case, the first flow path 110 is extended in the longitudinal direction in the storage unit 300, and the powder is formed by the generated turbulence. It can be prevented to flow back to the one euro (110).

In addition, the first passage 110 may form a slope of 120 to 180 ° based on the y axis in the storage 300. Or an angle θ of 130 to 170 °, 140 to 160 ° or 150 °. Here, the y-axis refers to the axis in the longitudinal direction on the drawing, the first flow path 110 may achieve the angle at the connecting portion 140, it may be formed to be inclined toward the tube side is supplied air. In this case, the connection part 140 may form an angle corresponding to the first flow path 110. Accordingly, the storage unit 300 may also be fastened at an inclined angle so that the first passage 110 corresponds to the inclined angle (see FIG. 4).

This is for smooth discharge of the powder when the powder injector 10 is used, and the powder may be smoothly sprayed even when the user injects the powder injector 10 by tilting it.

On the other hand, when the angle of the above-mentioned first flow path 110 is less than 120 °, when the nozzle 121 sprays the powder 1 in a horizontal condition, the storage part 300 connected to the same axis is also inclined. Inflow of the third passage 130 of the powder inside the storage unit 300 may be difficult, and when it exceeds 180 °, the powder inside the storage unit 300 when the user tilts the nozzle 121 forward 45 ° or more. Inflow of the third channel 130 in (1) may not be smooth. Therefore, it is preferable to form the slope of the above-mentioned range.

Next, the second passage 120 is a tube for injecting the powder in the storage unit 300 to the target site through the nozzle 121. Specifically, one side of the second passage 120 is in communication with the air supply unit 200, the other side is connected to the nozzle 121, the air is supplied to the other side by receiving air from one side of the second passage 120 The mixture of powder 1 is discharged.

In another aspect, the second flow path 120 may branch from the first flow path 110. It adopts a two-way air flow method, it is possible to smoothly spray the powder.

In addition, the third passage 130 connects the storage 300 and the second passage 120 to supply the powder 1 accommodated in the storage 300 to the second passage 120. Can be. One side of the third passage 130 may communicate with the storage 300, and the other side of the third passage 130 may communicate with the second passage 120.

3 and 4, the second passage 120 and the third passage 130 may communicate with each other by forming a '하여' shaped flow passage. As a specific aspect, the third passage 130 may be in communication with the side surface of the second passage 120 in a straight line, wherein the third passage 130 may be in communication with the upper portion of the second passage 120. . That is, the second channel 120 may be formed to be laminated with the third channel 130.

Referring to the operating state of the above-described powder injector 10 is as follows.

The air of the air supply unit 200 is supplied to the injection unit 100. More specifically, the air of the air supply unit 200 is simultaneously supplied to the first passage 110 and the second passage 120 of the injection unit 100.

The air supplied to the first passage 110 moves to the storage unit 300 in which the powder 1 is stored. At this time, the internal pressure of the storage unit 300 is increased by the air supplied from the air supply unit 200, so that the powder 1 and the air in the storage unit 300 are discharged to the third channel 130. .

Some air supplied to the storage unit 300 through the first channel 110 flows into the storage unit 300 to smoothly fall into the third channel 130 communicating with the lower portion of the storage unit 300. To play a role. As a result, the powder 1 discharged into the third passage 130 moves to the region where the second passage 120 and the third passage 130 are laminated.

The powder 1 moved to the area where the second flow path 120 and the third flow path 130 are laminated is mixed with the powder 1 and air by the air injected through the second flow path 120. At the same time while being sprayed through the nozzle 121 may be uniformly applied to the target portion of the correct position.

As such, the powder injector 10 according to the embodiment of the present invention adopts a two-way air flow method.

For reference, the region where the second flow path 120 and the third flow path 130 are laminated is a mixing chamber in which air provided from the air supply unit 200 and powder 1 discharged from the storage unit 300 are mixed. The powder, which is in a fluidized state in the region, is pushed by the air flow inside the second flow path 120 to a desired site (eg, a target site) through the nozzle 121 mounted to the second flow path 120. Sprayed.

5 is a view for explaining the venturi structure of the powder injector according to an embodiment of the present invention. Hereinafter, the venturi structure of the powder injector will be described in detail with reference to FIG. 5.

Powder injection apparatus 10 according to an embodiment of the present invention includes an injection amount control unit 400 that can adjust the injection amount of the powder, the injection amount adjustment unit 400 is narrow in diameter of the second channel (120) It is characterized in that the venturi structure 122 is formed.

Specifically, the injection amount adjusting unit 400 may be included in the region where the second passage 120 and the third passage 130 are laminated, and the venturi structure 122 may include the second passage 120 and the third passage ( 130 may be formed before the region to be laminated.

Due to the change in diameter in the second channel 120, a venturi effect may appear, resulting in a pressure difference, which may facilitate the introduction of powder through the third channel 130 into the region.

More specifically, on the basis of Bernoulli's principle, there is an integral tube, and if the diameters of the tubes are different, a regular principle is applied between the pressure and the speed. In other words, the narrower the diameter of the tube, the faster the flow rate through the inside, and thus the lower the pressure.

In FIG. 5, the flow rate of V2 is faster than V1 according to the difference in the diameter of the tube. Of course, the pressure of P1 is higher than the pressure of P2. According to the present invention, the Bernoulli principle may be used to move the powder of the storage unit 300 to a region where the second channel 120 and the third channel 130 are laminated through the third channel, and the nozzle ( 121 may be discharged to the target site.

In this case, the diameters of the largest and smallest diameters of the second channel 120 may be 1: 0.2 to 0.8 or 1: 0.25 to 0.7, or 1: 0.3 to 0.6. That is, the diameter of the venturi structure in the second channel 120 may be 1: 0.2 to 0.8 or 1: 0.25 to 0.7, or 1: 0.3 to 0.6 compared to the portion of the second channel 120 having the largest diameter. On the other hand, when the diameter of the venturi structure 122 is less than 0.2 compared to the maximum diameter of the second flow path 120, the diameter of the venturi structure 122 is too small may cause problems in the injection amount control due to air resistance.

In addition, when exceeding the above range, the diameter of the venturi structure 122 is too wide, the flow rate of air in the venturi structure 122 is low, it may be difficult to discharge the powder.

6 is a view showing the injection amount of the powder injection device 10 according to an embodiment of the present invention. Hereinafter, referring to FIG. 5, the injection amount adjusting unit 400 will be described in detail.

A region in which the second passage 120 and the third passage 130 are laminated includes an injection amount adjusting unit 400 for adjusting the injection amount of the powder.

The injection amount adjusting unit 400 adjusts the injection amount of the powder injected through the nozzle 121, and includes a valve chamber 410 and a valve plate 420.

A space in which air and powder are transported may be formed in the valve chamber 410. Specifically, the valve chamber 410 may be included in an area where the second flow path 120 and the third flow path 130 are laminated. In addition, a flow passage communicating with the above-described second passage 120 and the third passage 130 may be formed in the valve chamber 410 itself. Here, the second flow path formed in the valve chamber 410 itself may be a flow path communicating with the second flow path 120 of the injection part 100 to discharge air to the nozzle 121, and the valve chamber 410. The third flow passage 130 formed in itself may be a flow passage through which the powder in the storage 300 is transferred.

In addition, the valve chamber 410 may be coupled to the valve plate 420 in the form of a plate for adjusting the flow rate of air into the second passage 120 of the valve chamber 410.

In detail, the valve plate 420 is coupled to the central axis 401 of the valve chamber 410, and may include a plurality of outlets 421. In this case, the plurality of outlets 421 may have different diameters, and the outlet plate 421 of one of the outlets 421 may be rotated by rotating the valve plate 420 coupled to the valve chamber 410. ) To communicate with the second flow path 120, it is possible to control the injection amount of the powder.

The valve plate includes a first outlet port 4211 and a second outlet port 4212, and a ratio of diameters of the first outlet port and the second outlet port may range from 1: 1.2 to 3.0. Or the diameter ratio of the first outlet and the second outlet may be 1: 1.25 to 2.7 or 1: 1.3 to 2.4 or 1: 1.35 to 2.1, or 1: 1.7.

For example, the first outlet 4211 may have an average diameter of 0.5 to 0.9 mm, and the second outlet 4212 may have an average diameter of 1.0 to 1.5 mm.

In addition, the valve plate may include a third outlet 4213, and the diameter of the third outlet 4213 may be less than or equal to the diameter of the second passage. For example, the third outlet 4213 may communicate with the second passage 120, and at this time, the third passage 130 may be blocked. That is, the third outlet 4213 is not intended to substantially spray the powder in the reservoir, but the second passage 120, the nozzle 121, or the second passage 120 and the third passage 130 are laminated. It is a structure for discharging the powder remaining in the area | region to become. Or it is a structure for confirming the nozzle communication or the air injection degree, without spraying powder.

The third outlet port 4213 may be any size as long as it is equal to or smaller than the diameter of the second channel 120. For example, it may be an average of 1.0 to 3.0 mm or 1.5 to 2.0 mm.

The first to third outlets 4211, 4212, and 4213 may be formed along the circumference of the valve plate 420, and each outlet may be formed at a predetermined interval. However, the distance between the central axis 401 of the valve plate and the respective outlets 421 may be the same.

In addition, the valve plate 420 has at least one blocking plate 422 protruding in the axial direction to block the third passage 130, and the third passage 130 is rotated by the valve plate 420. Can open and close the In this case, the valve plate 420 may include a handle 423 for rotating the valve plate 420.

For example, the blocking plate may be formed to face the third outlet port 4213 based on the central axis 401 of the valve plate 420.

7 is a view illustrating the use of the powder injector according to an embodiment of the present invention using the injection amount adjusting unit ((a) opening of the first outlet, (b) opening of the second outlet, and (c) opening of the third outlet).

Hereinafter, referring to FIG. 7, a method of controlling the injection amount of powder using the injection amount control unit 400 of the powder injection device 10 according to an embodiment of the present invention will be described in detail.

As described above, the plurality of outlets 421 formed in the valve plate 420 may have different diameters, and may be formed according to the size of the diameter of the outlets 421 communicating with the second passage 120. The injection amount of can vary.

That is, the outlet 421 is in communication with the second passage 120, but using the handle 423 connected to the valve plate 420, the first outlet 4211, the second outlet 4212 or the third The outlet 4213 may be positioned to communicate with the second passage 120.

FIG. 7A illustrates the first outlet 4211 and the second passage 120 communicating with each other. At this time, the diameter of the integrated second tube 120 is changed by the diameter of the first outlet 4221. Accordingly, the pressure and the flow rate in the second passage 120 are different. That is, the pressure is lowered at the outlet 421 in which the diameter of the second channel 120 is reduced, and the flow velocity is increased. In the region where the second passage 120 and the third passage 130 are laminated, the pressure increases because the space of the passage increases.

7B is a view in which the second outlet 4212 and the second passage 120 communicate with each other. The diameter of the second outlet 4212 may be larger than that of the first outlet 4211. When the first outlet 4211 and the second outlet 4212 are compared, when the first outlet 4211 communicates with the second passage 120, the second outlet 4212 is connected to the second passage 120. It is possible to discharge a larger amount of powder at a time than when in communication.

This is because the first outlet 4211 has a smaller diameter than the second outlet 4212, so that the pressure generated in the second passage 120 when the first outlet 4211 communicates with the second passage 120. The difference in change occurs greatly. The region where the second flow path 120 and the third flow path 130 are laminated is a mixing chamber in which air provided from the air supply unit 200 and powder discharged from the storage unit 300 are mixed. At this time, the powder in the fluidized state in the region is pushed by the air flow inside the second flow path 120, is discharged to the outside through the nozzle 120, at this time, 7 (b) when 7 (b) More pressure is exerted on the area than when.

In addition, since the diameter of the first outlet 4211 is smaller than the diameter of the second outlet 4212, the air supplied to the first passage 110 in FIG. 7A and 7B may be smaller than the diameter of the second outlet 4212. The amount of is supplied more than the amount of air discharged to the nozzle 121 through the second passage (120). Therefore, FIG. 7 (a) increases the pressure in the storage unit than FIG. 7 (b), so that the amount of powder is discharged to the third channel 130.

That is, in FIG. 7A, the amount of powder discharged to the third channel 130 is increased, and the pressure in the space where the second channel 120 and the third channel 130 are laminated increases. When the air is supplied once, the amount of powder discharged through the nozzle 121 increases.

For example, when 21 ml of air is supplied once, FIG. 7 (a) may inject 1 ml of powder, and FIG. 6 (b) may inject 0.5 ml of powder.

Meanwhile, as shown in FIG. 7C, the third outlet 4213 may communicate with the second passage 120.

In this case, all of the powder remaining in the region or the nozzle 121 where the second passage 120 and the third passage 130 are laminated may be discharged.

In detail, when the third outlet 4213 communicates with the second passage 120, the blocking plate 422 connected to the valve plate 420 may close the third passage 130. On the other hand, the blocking plate 422 is formed to protrude in the axial direction in a portion of the circumference of the valve plate 420, based on the central axis 401 of the valve plate 420, the third outlet port 4213 and the blocking plate 422 may be formed at positions opposite to each other.

That is, the blocking plate 422 closes the third passage 130, blocks the powder from moving to the second passage 120, and supplies air to the second passage 120 to supply the air to the second passage 120. All of the powder remaining in the area where the 120 and the third passage 130 are laminated or the nozzle 121 is discharged.

As described above, while the outlet 421 formed in the second flow path 120 and the valve plate 420 is communicated with each other, the injection amount of the powder can be easily controlled by controlling the diameter of the outlet 421.

8 is a view showing a connection pipe and the contact preventing member of the powder injection apparatus according to an embodiment of the present invention.

Referring to FIG. 8, the nozzle 121 of the present invention communicates with a connecting tube 123 extending in a longitudinal direction, and the end of the connecting tube 123 may include a contact preventing member 124.

More specifically, the connection pipe 123 is in the form of a tube extending in the longitudinal direction, one side of the connection pipe 123 may be in communication with the nozzle 121 by the connection member 123 ', the other side is a contact preventing member ( 124).

At this time, the length of the connecting pipe 123 may be 10 to 500 mm, it can be appropriately changed according to the use. For example, in the case of spraying at a close distance can be connected to the connecting pipe 123 of 10 to 100 mm, one example of the internal body of the body, in the case of spraying a powdery hemostatic agent through an endoscope, etc., the connection of 200 to 500 mm length The pipe 123 may be connected to the nozzle 121.

In addition, the contact preventing member 124 is configured to protect the tip that is the end of the nozzle 121 or the connection pipe 123, when the connection pipe 123 of the nozzle 121 is connected, the connection pipe 123 It may be included at the end of.

One side of the contact preventing member 124 is to be connected to the end of the connecting pipe 123, but may be in the form of a tube, characterized in that the inner diameter is larger than the diameter of the connecting pipe 123. That is, by connecting the member having a diameter larger than the diameter of the connection pipe 123, it is possible to prevent the tip portion, which is the end of the connection pipe 123, in contact with the target site.

The contact preventing member 124 may have an inner space, and may include a plurality of wings 1241 extending from one side of the contact preventing member 124. Specifically, the plurality of wings 1241 may be formed at predetermined intervals along the outer diameter of the contact preventing member.

9 is a diagram illustrating the use of a powder injector according to an embodiment of the present invention.

FIG. 9 (a) is a diagram illustrating the discharging of powder by supplying air to the spray unit 100, and FIG. 8 (b) is a diagram showing a time when supply of air to the spray unit 100 is stopped.

Referring to FIG. 9, the air supply unit 200 compresses the air inside the injection unit 100 to compress the air compressed by the nozzle 121 to the first passage 110, the second passage 120, or the second passage ( It may be provided in any way to have a structure that can be discharged to 120, in an embodiment of the present invention is provided in the form of pleated bellows (bellows).

As shown in FIG. 9 (a), when the bellows-type air supply unit 200 is compressed, the air of the air supply 200 is compressed to form the first passage 110 and / or the second passage 120. The air is supplied through, and the powder injector 10 operates to inject powder in the storage unit 300.

In addition, as shown in Figure 9 (b), by removing the pressure applied to the air supply unit 200, the bellows-type air supply unit 200 can be expanded again to return to its original form. have. For reference, the air supply unit 200 may be formed with a hole through which air can be introduced.

In detail, the air supply unit 200 may have a bellows shape, and a pair of valves may be installed to facilitate volume change of the air supply unit 200 according to expansion and contraction of the bellows-type air supply unit 200.

Specifically, when the bellows-type air supply unit 200 is expanded, the air supply unit 200 when contracting the first valve 201 and the bellows-type air supply unit 200 to allow external air to flow into the air supply unit 200. The second valve 202 for supplying the air inside the injection unit 100 may be included.

Each of the first valve 201 and the second valve 202 may be a check valve for sucking and discharging external air.

For example, the check valve of any one of the first valve 201 and the second valve 202, for example, while the first valve is opened and the external air is introduced into the air supply unit 200, the remaining second valve ( 202 may be in a closed state to prevent air from flowing out.

Meanwhile, in one embodiment of the present invention, the air supply unit 200 may be an air supply unit 200 having a bellows shape, but may be an air pressure connected to an air pump or the like, and may be a medical air presser. It is not limited to this.

On the other hand, the powder is injected using the powder injector 10 according to an embodiment of the present invention may have an average particle diameter of 1 to 1000 ㎛ range. Or the average particle diameter ranges from 5 to 900 μm, 10 to 850 μm, 15 to 800 μm, 20 to 750 μm, 30 to 700 μm, 40 to 650 μm, 50 to 600 μm, 60 to 500 μm, 65 to 400 Or a powder in the range from 75 to 350 μm.

In this case, when the average particle diameter of the powder is less than 75 μm, the powder may be too fine and light so that turbulence may be formed in the storage 200 or the flow path to cause backflow, and the average particle diameter of the powder may exceed 350 μm. In this case, the particle size of the powder is large and heavy so that the flow path can be easily blocked, it may be impossible to spray the powder smoothly.

Although the powder injector according to the present invention has been described in detail above, this is only for describing the most preferred embodiment of the present invention, and the present invention is not limited thereto. Are limited. In addition, anyone of ordinary skill in the art will be able to make various modifications and imitations according to the description of the specification of the present invention, but it will be apparent that this is also outside the scope of the present invention.

1: powder
10: powder injector
100: injection part
110: first euro 111: end of the first euro
120: second euro 121: nozzle
122: venturi structure
123: connector 123 ': connecting member
124: contact preventing member
1241: wings
130: third euro
140: connection means
200: air supply
300: storage unit
400: injection amount adjusting unit 401: central axis
410: valve chamber 420: valve plate
421: outlet
4211: outlet 1
4212: second outlet
4213: third outlet
422: blocking plate 423: handle

Claims (15)

An injection unit for injecting powder through the nozzle;
An air supply unit fluidly connected to one side of the injection unit to supply air; And
A storage unit which is fastened to an upper part of the injection unit and stores powder; Including;
Jet
A first flow path for supplying air supplied from the air supply part into the storage part;
A second passage receiving air from the air supply and discharging powder through a nozzle;
A third flow passage communicating with the storage portion and the second flow passage to supply the powder contained in the storage portion to the second flow passage; And
An area in which the second and third euros are laminated; Including;
Including an injection amount control unit in the region where the second flow path and the third flow path,
The height of the end of the first flow path is formed higher than the height of the accommodation of the powder accommodated in the storage,
The injection amount adjusting unit includes a valve chamber in which a second flow path and a third flow path are formed; And
A valve plate coupled to the central axis of the valve chamber and including a plurality of outlets having different diameters; It includes, The powder injection device characterized in that for communicating with the second flow path of one of the plurality of outlets by the rotation of the valve plate.
The method of claim 1,
The first euro
Powder injector, characterized in that for forming a slope of 120 to 180 ° with respect to the y-axis inside the reservoir.
The method of claim 1,
The second flow path is a powder injection device, characterized in that branched from the first flow path.
The method of claim 1,
Injection quantity adjusting part
A venturi structure in which the diameter of the second flow path is narrowed is formed.
delete The method of claim 1,
Multiple outlets
It is formed along the circumference of the valve plate, the powder injector, characterized in that formed at a predetermined interval from each other.
The method of claim 1,
The valve plate includes a first outlet and a second outlet,
The powder injector, characterized in that the diameter ratio of the first outlet and the second outlet is in the range of 1: 1.2 to 3.0.
The method of claim 1,
The valve plate includes a third outlet,
And the diameter of the third outlet is less than or equal to the diameter of the second flow path.
The method of claim 8,
Valve plate
At least one blocking plate for blocking the third passage is protruded in the axial direction, the powder injection device, characterized in that for opening and closing the third passage by the rotation of the valve plate.
The method of claim 9,
The blocking plate is formed to face the third outlet on the basis of the central axis of the valve plate powder injector.
The method of claim 1,
Valve plate
And a handle for rotating the valve plate.
The method of claim 1,
Air supply
Powder injector, characterized in that the bellows form that is in communication with the injection portion to supply air, and shrink and relax.
The method of claim 12,
The air supply is bellows type
A first valve through which external air flows into the air supply unit; And
A second valve for supplying air inside the air supply unit to the injection unit; Powder injector comprising a.
The method of claim 1,
Powder accommodated in the storage unit is a powder injector, characterized in that the average particle diameter ranges from 1 to 1000 ㎛.
The method of claim 1,
The nozzle is connected to the connecting tube extending in the longitudinal direction, the end of the connecting pipe powder injector, characterized in that it comprises a contact preventing member.

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