JP2011194304A - Adhesive coating apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To apply a coating material by mixing chemicals while preventing plugging even in applying a plural-liquid-mixed type adhesive.SOLUTION: The adhesive coating apparatus 1 includes a plurality of chemical supply passages 2, 3 that supply chemicals to each of spraying ports 2a, 3a disposed at mutually adjacent positions and a mixing means 4 that mutually mixes chemicals sprayed from each spraying port 2a, 3a, wherein each chemical is mixed with the mixing means 4 and is coated onto a target after they are sprayed from the spraying ports 2a, 3a.

Description

  The present invention relates to an adhesive application device.

  2. Description of the Related Art Conventionally, an apparatus that ejects while mixing a plurality of types of liquids is known (see, for example, Patent Documents 1 to 4).

JP 2000-33294 A JP 2001-232245 A JP 2001-239190 A JP 2006-110646 A

  However, when applying a multi-liquid mixed type adhesive that is cured by mixing a plurality of chemicals using the devices of Patent Documents 1 to 4, the adhesive is cured and clogged inside the jet nozzle. Therefore, there is a problem that it cannot be used continuously.

  The present invention has been made in view of the above-described circumstances, and provides an adhesive application device capable of mixing and applying a chemical solution while preventing clogging even when applying a multiple-liquid mixed adhesive. For the purpose.

In order to achieve the above object, the present invention provides the following means.
The present invention includes a plurality of chemical liquid supply passages each having a jet port disposed at a position close to each other, supplying a chemical solution toward each jet port, and the chemical liquid jetted from each jet port. There is provided an adhesive application device provided with mixing means.
According to the present invention, when a plurality of types of chemical liquids that are components of the adhesive are supplied to separate chemical liquid supply passages and ejected from the ejection port, the chemical liquids are mixed by the mixing means after being ejected from the ejection port. Can be applied to the target, and can be prevented from being clogged due to the chemical solutions being mixed and cured in the chemical solution supply path.

In the said invention, the said mixing means may be equipped with the atomization mechanism which makes the said chemical | medical solution ejected from the said ejection port into a mist form.
By doing in this way, each chemical | medical agent can be mixed easily.
Moreover, in the said invention, the said atomization mechanism may have the gas supply outlet which has a gas blower outlet in the vicinity of the said jet outlet, and blows out compressed gas from this gas blower outlet, and covers the said jet outlet It may be a mesh member.
By doing in this way, a chemical | medical solution can be made into a mist shape with a simple structure.

Moreover, in the said invention, the said mixing means has the airflow path which has an airflow outlet in the vicinity of the said jet outlet, and the swirl | flow airflow generation part which produces a swirl | vortex airflow in the said airflow path toward the said airflow outlet. You may have.
By doing in this way, a chemical | medical solution can be simply mixed by advancing, while the chemical | medical solution ejected from each jet nozzle is caught in a swirl airflow.

Moreover, in the said invention, the said mixing means may eject the said chemical | medical solution repeatedly from the said each ejection port in order by a time division.
By doing in this way, each chemical | medical solution is repeatedly laminated | stacked in order on a target, and a chemical | medical solution can be mixed easily.

Moreover, in the said invention, you may provide the ejection range restriction | limiting means which restrict | limits the ejection range of the chemical | medical solution ejected from each said ejection port within a predetermined range.
By doing in this way, each chemical | medical solution ejected from the jet nozzle of a different position can be apply | coated within a desired range.

Moreover, in the said invention, the said ejection range restriction | limiting means may be equipped with the ventilation path which encloses the said ejection port and forms a cylindrical air current in the ejection direction of the said chemical | medical solution.
By doing in this way, the curtain (air curtain) of the airflow surrounding the chemical | medical solution ejected from the jet nozzle is formed, and the ejection range of a chemical | medical solution can be restrict | limited within an air curtain.

  According to the present invention, it is possible to mix and apply a chemical solution while preventing clogging even when a multi-liquid mixed adhesive is applied.

It is a block diagram of the adhesive agent coating apparatus which concerns on one Embodiment of this invention. It is a figure which shows the time of use of the adhesive agent coating apparatus of FIG. It is a modification of the adhesive agent coating apparatus of FIG. 1, and is a figure which shows the structure which atomizes a chemical | medical solution with a mesh. It is another modification of the adhesive agent coating apparatus of FIG. 1, and is a figure which shows the structure which atomizes a chemical | medical solution with a swirl airflow. It is another modification of the adhesive agent coating apparatus of FIG. 1, and is a figure which shows the structure which alternately ejects a chemical | medical solution from a syringe by a time mechanism by a cam mechanism. It is another modification of the adhesive agent coating apparatus of FIG. 1, and is a figure which shows the structure which alternately ejects a chemical | medical solution from a syringe by a time division by a shutter. It is a figure which shows the modification of the shutter of FIG. It is another modification of the adhesive agent coating apparatus of FIG. 1, and is a figure which shows the structure which alternately ejects a chemical | medical solution from a syringe by a time division by a press part and a control part.

Below, the adhesive agent coating apparatus 1 which concerns on one Embodiment of this invention is demonstrated with reference to drawings.
The adhesive application device 1 according to this embodiment is used for applying a medical two-component mixed adhesive to an affected area A such as an incision site. As shown in FIG. A liquid supply passage (chemical liquid supply passage) for supplying A liquid (chemical liquid) a and B liquid supply passage (chemical liquid supply) for supplying B liquid (chemical liquid) b, in which outlets 2a and 3a are arranged adjacent to each other (Passage) 3, a gas supply passage 4 that blows out compressed gas from between the outlets 2 a and 3 a of these supply passages 2 and 3, and A liquid a and B liquid b ejected from the outlets 2 a and 2 b The air passage 5 for generating the cylindrical air curtain 5a is provided.

  The adhesive is not particularly limited as long as it is generally used for medical purposes. As a combination of A liquid a and B liquid b, for example, a fibrinogen-containing liquid and a thrombin-containing liquid may be used, or a protein-containing liquid that is abundant in a living body such as albumin or gelatin, glutaraldehyde, You may use the liquid containing a crosslinking agent of protein, such as formaldehyde.

  The A liquid supply passage 2 and the B liquid supply passage 3 communicate with the A liquid storage chamber 2b for storing the A liquid a or the B liquid storage chamber 2b for storing the B liquid b, respectively, and are not illustrated by an operation by the operator. At the same time, the liquid A and liquid B are ejected from the ejection ports 2a and 3a through the mechanism.

  The gas supply passage 4 is connected to a high-pressure gas chamber (not shown) that accommodates the gas in a high-pressure state, and at the same time the liquid A and liquid B are ejected from the ejection ports 2a and 3a, between the ejection ports 2a and 3a. The compressed gas is blown out from the opened outlet (gas outlet) 4a. Thereby, the A liquid a and the B liquid b ejected from the ejection ports 2a and 3a are atomized.

  The ventilation passage 5 has an annular delivery port 5b surrounding the ejection ports 2a and 3a, and sends out gas blown from a blower (not shown) from the delivery port 5b. Thereby, the cylindrical air curtain (cylindrical airflow) 5a surrounding the ejected A liquid a and B liquid b is formed in the ejection direction of the A liquid a and the B liquid b, and the A liquid a and the B liquid b are formed. Is prevented from scattering beyond the position of the air curtain 5a.

  According to the adhesive applicator 1 configured as described above, as shown in FIG. 2, the A liquid a and the B liquid b are ejected from the respective ejection ports 2a and 3a, so that the mist-like A liquid a and B liquid b can be applied to the affected area A. In this case, since the liquid A and the liquid B are not mixed inside the jet outlets 2a and 3a, the supply passages 2 and 3 are prevented from being clogged during use and continued. There is an advantage that it can be used.

  Further, even if the liquid A and the liquid B are ejected from different positions in this way, the scattering area of the liquid A and the liquid B is limited within the air curtain 5a, and the liquid A and the liquid B are There exists an advantage that it can apply | coat to a substantially common area | region. Moreover, even if each liquid is ejected from the separate ejection outlets 2a and 3a, it is applied to the affected area A in a state of being uniformly mixed with each other by atomizing and reducing the particle diameter, and cured sufficiently efficiently. There is an advantage that can be.

In the above embodiment, the liquid A and the liquid B are atomized by the compressed gas. Instead of this, as shown in FIG. 3, meshes covering the jet outlets 2 a and 3 a ( (Mesh member) 6a, 6b may be provided, and the A liquid a and the B liquid b may be atomized by passing them through the mesh 6a, 6b. By doing in this way, a structure can be simplified more.
In this case, the meshes 6a and 6b having the same hole diameter may be used, but by using the meshes 6a and 6b having different hole diameters, the mist diameter of the atomized A liquid a and the mist diameter of the B liquid b can be obtained. Differently, the liquid A and the liquid B can be mixed more efficiently.

  Moreover, in the said embodiment, although it decided to atomize these chemical | medical solutions in order to mix the A liquid a and the B liquid b, it is good also as generating a swirling airflow instead. For example, as shown in FIG. 4, the spiral blade 7 is provided in the gas supply passage (air flow passage) 4 to form a spiral flow path, thereby generating a swirling air flow and blowing out from the outlet 4a. it can.

  By doing in this way, the A liquid a and the B liquid b ejected on the side of the swirling air current ejected from the air outlet (air flow outlet) 4a are directed toward the affected area A while being entrained. Liquid a and B liquid b can be mixed.

Moreover, in the said embodiment, it may replace with the gas supply path 4, and may be provided with the time division | segmentation ejection mechanism (mixing means) which repeatedly ejects A liquid a and B liquid b by a time division.
Examples of the time-division ejection mechanism are shown in FIGS. In the example shown in FIGS. 5 to 8, an A liquid syringe (chemical liquid supply path) 8 and a B liquid syringe (chemical liquid supply path) 9 are provided in place of the A liquid a supply path 2 and the B liquid supply path 3 described above. Yes.

  FIG. 5 shows a structure provided with a cam mechanism (mixing means) 10 for reciprocating the plungers 8a and 9a so that the plungers 8a and 9a of the syringes 8 and 9 alternately move up and down as a time-division ejection mechanism. Show. Thereby, A liquid a or B liquid b is alternately ejected from one syringe 8,9.

  FIG. 6 shows a configuration provided with a shutter (mixing means) 11 that alternately opens the jet outlets 8b and 9b as a time-division jetting mechanism. As shown in FIG. 6, the shutter 11 may reciprocate linearly between the outlets 8a and 9a of the syringes 8 and 9 to open only one of the outlets 8b and 9b alternately.

  Further, as shown in FIG. 7, the shutter 11 has a disk shape that rotates around a substantially central axis between the syringes 8 and 9, and a window 11a that penetrates is provided at a position that coincides with the ejection ports 8a and 9a. It may be done. Even in this case, by rotating the shutter 11, the liquid A or the liquid B can be ejected from one of the ejection ports 8b and 9b when the window 11a coincides with the position of the ejection ports 8a and 9a. .

  When the shutter 11 is provided, the liquid A and the liquid B may adhere to the shutter 11 and may be mixed and cured on the surface of the shutter 11. Therefore, a wiping member 12 such as a sponge is disposed at a position where the shutter 11 is in contact with the surface of the shutter 11 while the shutter 11 is moving between the jet nozzles 8b and 9b, and the liquid A and liquid B adhering to the shutter 11 are disposed. It is preferable to wipe off sequentially.

  FIG. 8 shows a pressing portion (mixing means) 13 such as an actuator that presses the plungers 8a and 9a, and the pressing portions 13 press the plungers 8a and 8b so that the plungers 8a and 9a are alternately pressed by the pressing portions 13. The structure provided with the control part (mixing means) 14 which controls quantity is shown.

  In this way, A liquid a and B liquid b are alternately and repeatedly ejected in a time-division manner, whereby A liquid a and B liquid b are alternately stacked on the affected area A, and A liquid a and These liquids a and b can be uniformly mixed by contacting with the B liquid b. In this case, when a protein-containing liquid and a cross-linking agent-containing liquid are used as the A liquid a and the B liquid b, it is preferable that the protein-containing liquid is ejected first. By doing in this way, a crosslinking agent can be made to act on protein more effectively.

1 Adhesive coating device 2 A liquid supply passage (chemical liquid supply passage)
3 B liquid supply passage (chemical liquid supply passage)
2a, 3a Spout 4 Gas supply passage (mixing means, air flow passage)
4a Air outlet (gas outlet, air outlet)
5 Air passage 5a Outlet 5b Air curtain 6a, 6b Mesh (mixing means, atomization mechanism, mesh member)
7 Spiral blade (mixing means, swirl airflow generator)
8 A liquid syringe (chemical liquid supply passage)
9 B liquid syringe (chemical liquid supply passage)
8a, 9a Plunger 8b, 9b Jet 10 Cam mechanism (mixing means)
11 Shutter (mixing means)
12 Wiping member 13 Pressing part (mixing means)
14 Control unit (mixing means)
A Affected part a A liquid (medical solution)
b Liquid B (chemical)

Claims (8)

A plurality of chemical supply passages each having a jet port arranged at a position close to each other, and supplying a chemical solution toward each jet port;
An adhesive application device comprising: a mixing unit that mixes the chemicals ejected from the ejection ports.   The adhesive application device according to claim 1, wherein the mixing unit includes an atomization mechanism that atomizes the chemical liquid ejected from the ejection port.   The adhesive application apparatus according to claim 2, wherein the atomizing mechanism includes a gas supply passage that has a gas outlet in the vicinity of the outlet and blows out compressed gas from the gas outlet.   The adhesive application device according to claim 2, wherein the atomizing mechanism is a mesh member that covers the ejection port. The mixing means comprises:
An airflow passage having an airflow outlet near the jet outlet;
The adhesive application device according to claim 1, further comprising a swirling airflow generation unit that generates a swirling airflow in the airflow passage toward the airflow outlet.   The adhesive application device according to claim 1, wherein the mixing unit repeatedly ejects the chemical liquid from the respective ejection ports in order in a time division manner.   The adhesive application device according to claim 1, further comprising ejection range limiting means for limiting an ejection range of the chemical liquid ejected from each ejection port to a predetermined range.   The adhesive application device according to claim 7, wherein the ejection range restriction unit includes a blower passage that surrounds the ejection port and forms a cylindrical airflow in the ejection direction of the chemical liquid.

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