KR20220017102A - Splint for Emergency - Google Patents

Abstract

The present invention relates to a splint for emergency use, and to a splint for emergency use which can be used on the human body. The splint for emergency use comprises: an internal space in which a foamed material can be accommodated; an inflatable part with an injection port communicating with the internal space so that the foamed material is injected into the internal space and cured; a fastening device capable of detachably fastening the inflatable part to the human body; and a foamed material injection device in which the foamed material is accommodated in a liquid or semi-liquid state, and which includes an outlet port coupled to the injection port and configured to discharge the foamed material accommodated therein. According to the present invention, the overall volume of the product is small so that the product can be easily carried. There is no accidental curing of the foamed material in a situation that is not intended by a user, and when the human body is injured, the foamed material can be quickly injected into the inflatable part and cured.

Description

Splint for Emergency

The present invention relates to an emergency splint, and in particular, to an emergency splint that has a small overall volume and excellent portability, and can be cured by quickly injecting a foam material into an inflatable part when an injury to the human body occurs.

In general, a splint is a device used to partially or fully wrap tightly for stability and limit the mobility of the affected area when an emergency such as a bodily trauma or fracture or dislocation or sprain occurs.

However, in the prior art, when water is added to the gypsum powder with such a device, a cast using the property of quickly hardening has been commonly used.

Such a conventional splint has a problem in that it is inconvenient to carry because it can be used in a state where plaster and water are provided. There was a problem that took a lot.

And, in the case of the general public, since the method of using the cast is difficult and storage thereof is inconvenient, there is a limitation in that the cast is used only by professional medical workers or emergency responders.

In addition, the conventional cast using a plaster bandage or glass fiber, when wet with water, the strength is weak, there is also a problem that cannot support the injured part of the patient.

Therefore, it is a reality that the need for an emergency splint that can be used quickly when an arm or leg is fractured due to a fall or the like outdoors is very high.

The present invention has been devised to solve the above problem, and the purpose of the product is to have a small overall volume and excellent portability, and to improve the structure so that the foam material can be quickly injected into the expansion part and hardened in the event of an injury to the human body This is to provide an emergency splint.

In order to achieve the above object, an emergency splint according to the present invention is an emergency splint that can be used on the human body, comprising: an internal space in which a foam material can be accommodated; an expansion unit having an injection port communicating with the interior space so that the foam material is injected into the interior space and hardened; a fastening device capable of detachably fastening the inflatable part to the human body; The foam material is accommodated therein in a liquid or semi-liquid state, and the foam material injector is coupled to the injection port and includes an outlet for discharging the foam material accommodated therein.

Here, the expansion unit may include: a shell member including a sheet member made of a synthetic resin material; It is preferable to include a reinforcing member in the form of a mesh that is coupled to the shell member so that the shell member does not expand too much.

Here, the inflatable part, an endothelial member including a sheet member made of a synthetic resin material; It is preferable to include a; it is coupled to one surface of the endothelial member, the contact member having a fabric member that can be in contact with the skin of the human body.

Here, it is preferable that the expansion part is spaced apart into at least two zones by a folding line, and the expansion part can be folded around the folding line after the foam material injected into the internal space is cured. .

Here, it is preferable that the injection ports are respectively installed in the separated regions of the expansion unit.

Here, the fastening device may include: an adjustment device provided at one end of the inflatable part and including a locking member capable of moving between a locked position and an unlocked position; It is preferable to include; a length adjustment member provided at the other end of the expansion part, in which a plurality of locking grooves that can be detachably coupled to the locking member are arranged along the longitudinal direction.

Here, the foam material is stored separately in two liquids inside the foam material injector, the two liquids are mixed while discharged through the outlet, and it is preferable to be cured after being injected into the internal space of the expansion unit .

Here, the foaming material preferably includes a polyurethane foam synthesized by mixing a first liquid containing a polyol and a second liquid containing an isocyanate.

Here, it is preferable that at least a part of the expansion part is transparent or translucent so that the internal space can be visually confirmed.

Here, the foam injector, the cylinder having a hollow in communication with the outlet; a piston movable in a reciprocating position between an open position and a closed position along the longitudinal direction of the hollow and pressurized to the open position by the outlet; a first flow path penetrating from the outer circumferential surface to the inner circumferential surface of the cylinder and through which a first liquid can flow; and a second flow path penetrating from the outer circumferential surface to the inner circumferential surface of the cylinder and through which a second liquid can flow, and when the piston is in the closed position, the piston passes through both the first flow path and the second flow path. closed, and when the piston is in the open position, the piston opens the first flow path and the second flow path, so that the first liquid and the second liquid are mixed in the hollow of the cylinder and then through the outlet It is preferable to be discharged.

Here, the first flow path is provided with a pair and disposed adjacent to each other, the second flow path is provided with a pair and disposed adjacent to each other, and on one side of the outer circumferential surface of the piston, the pair of first flow paths in the closed position A first groove portion for communicating the flow passages is provided, and on the other side of the outer peripheral surface of the piston, a second groove portion for communicating the pair of second flow passages in the closed position is provided, and the first groove portion and the second groove portion are provided. It is preferable that the parts are spatially isolated from each other.

According to the present invention, as an emergency splint that can be used on the human body, the internal space in which the foam material can be accommodated; an expansion unit having an injection port communicating with the interior space so that the foam material is injected into the interior space and hardened; a fastening device capable of detachably fastening the inflatable part to the human body; The foam material is accommodated therein in a liquid or semi-liquid state, and the foam material injector is coupled to the injection port and includes an outlet for discharging the foam material accommodated therein. This is excellent, and there is no accidental curing of the foam material in a situation not intended by the user, and there is an effect that the foam material can be quickly injected into the expansion part and hardened when an injury to the human body occurs.

1 is a plan view of an emergency splint according to an embodiment of the present invention.
Figure 2 is a cross-sectional view taken along line AA of the splint for emergency shown in Figure 1.
3 is a view for explaining a method of using the splint for emergency shown in FIG. 1 .
4 is a cross-sectional view taken along line BB of the splint for emergency use shown in FIG. 3 .
5 is a view for explaining a method of separating the splint for emergency shown in FIG. 4 from the human body.
FIG. 6 is a view for explaining the expansion part shown in FIG. 1 .
7 is a partial cross-sectional view of the foam injector shown in FIG.
8 is a view for explaining a method of using the foam injector shown in FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a plan view of an emergency splint according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along line A-A of the emergency splint shown in FIG. 1 . 3 is a view for explaining a method of using the splint for emergency shown in FIG. 1 .

1 to 3 , an emergency splint 100 according to a preferred embodiment of the present invention is an emergency splint that can be quickly used on the human body when an arm or leg is fractured due to a fall outdoors. , is configured to include the expansion unit 10 and the fastening device 20 and the foam injector 200 .

The expansion part 10 is a bag-type container provided to be cured after the foam material F is injected and expanded. It includes a contact member 14 and an inlet 16 .

The shell member 11 is a sheet member made of a synthetic resin material, and is disposed on the outside of the expandable part 10 as shown in FIG. 2 .

In this embodiment, the shell member 11 includes a soft polycarbonate (PC) having a predetermined thickness.

The endothelial member 12 is a sheet member made of a synthetic resin material, and is disposed inside the expandable part 10 as shown in FIG. 2 .

In this embodiment, the endothelial member 12 includes a soft polycarbonate (PC) having a predetermined thickness.

An inner space 15 in which the foam material F can be accommodated is formed by sealing the edge portions of the outer shell member 11 and the endothelial member 12 by heat sealing.

The reinforcing member 13 is a member coupled to the shell member 11, and is for preventing the shell member 11 from being excessively expanded when the foam material F is injected into the inner space 15. is absent

In this embodiment, the reinforcing member 13 has a mesh shape as shown in FIG. 6 and is made of a metal or synthetic resin material.

In the present embodiment, the reinforcing member 13 is disposed in a state inserted into the inner surface side of the outer shell member 11 as shown in FIG. 2 .

The contact member 14 is a member capable of contacting the skin of the human body and is coupled to one surface of the endothelial member 12 .

In this embodiment, the contact member 14 is provided with a soft cloth member, and is coupled to one surface of the outer shell member 11 by thermal fusion.

The injection port 16 is an inlet for introducing the foam material F into the inner space 15 , and is in communication with the inner space 15 .

The inlet 16 may be detachably coupled to the outlet 1 of the foam injector 200 to be described later.

The expansion part 10 is spatially separated into at least two or more zones by a folding line (H).

In this embodiment, the expansion part 10 is divided into two zones 10a and 10b by the folding line H.

The foam material F is not injected into the folding line H as shown in FIG. 4 .

The expansion part 10 is, as shown in FIG. 5, after the foaming material (F) injected into the inner space 15 is cured, the folding line (H) is formed so that the arm of the human body can escape. It can be folded outward by the center.

In the present embodiment, the inlet 16 is installed in the separated regions 10a and 10b of the expansion unit 10, respectively.

In this embodiment, at least a part of the expansion part 10 is made to be transparent or translucent so that the state in which the foaming material F is injected into the internal space 15 can be visually confirmed.

The fastening device 20 is a device capable of detachably fastening the inflatable part 10 to the human body, and includes an adjusting device 21 and a length adjusting member 22 .

The adjusting device (21) is a device including a locking member (211) movable between a locked position and an unlocked position, and is provided at one end of the inflatable portion (10).

The adjusting device 21 is a device detachably coupled to the length adjusting member 22 , and is provided to strongly or weakly adjust the coupling force in the state coupled to the length adjusting member 22 .

In the present embodiment, the locking member 211 is provided in the form of a circular rod having a predetermined length and diameter, as shown in FIG. 1 .

As shown in FIG. 1 , the length adjusting member 22 is a band-shaped member having a predetermined length and thickness, and is provided at the other end of the expandable part 10 .

The length adjustment member 22 is provided with a plurality of locking grooves 221 that can be detachably coupled to the locking member 211 .

The stiffening grooves 221 are arranged along the longitudinal direction of the length adjusting member 22 .

In the present embodiment, the coupling force of the fastening device 20 may be strongly or weakly adjusted according to which one of the plurality of locking grooves 221 is coupled to the locking member 211 .

The foam injector 200 is a device for injecting the foam material F into the internal space 15 of the expansion unit 10, and includes an outlet 1, a piston 2, and a cylinder 5. include

The foam injector 200 accommodates the foam material (F) in a liquid or semi-liquid state therein, and has a structure in which the foam material (F) can be injected through the outlet (1).

In this embodiment, inside the foaming material injector 200, the two liquids L1 and L2, which are raw materials of the foaming material F, are spatially separated from each other and stored.

In this embodiment, the foaming material (F) contains a polyurethane foam that is synthesized by mixing a first liquid (L1) containing a polyol and a second liquid (L2) containing an isocyanate.

The polyol is a liquid polymer material having two or more alcohol groups attached to the hydrocarbon chain, that is, a polyhydric alcohol, that is, an aliphatic compound having two or more hydroxyl groups (-OH). A glycol or a diol having two hydroxyl groups. ), and other examples include diethylene glycol, dipropylene glycol, and polyethylene glycol obtained by etherification of ethylene glycol or propylene glycol.

The isocyanate is a kind of curing agent used to make polyurethane, and usually has two or more isocyanate groups in each molecule.

The most commonly used isocyanates are aromatic diisocyanate, toluene diisocyanate (TDI) and methylene diphenyl diisocyanate (MDI).

TDI and MDI are generally cheaper and more reactive than other isocyanates. Industrial grade TDI and MDI are mixtures of isomers, and MDI often contains polymeric materials. They are used to make flexible forms (eg in the form of mattresses or car seats) and rigid forms (eg foam insulation in refrigerators) and elastics (eg shoe soles).

Isocyanates can be modified partially by reacting with polyols or by introducing other substances to reduce the volatility (variability, toxicity) of the isocyanate, to reduce its freezing point to make the material easier to handle, or to improve the properties of the final polymer. can

In this embodiment, the foam material (F) includes a rigid polyurethane foam having a density of 30-40 kg/m3, unlike a typical polyurethane foam in consideration of the pressing force applied to the human body.

The foam material (F) is, as shown in FIG. 8, after the two liquids (L1, L2) accommodated in the foam material injector 200 are discharged through the outlet 1 and mixed with each other, the After being injected into the internal space 15 of the expansion unit 10, foaming is cured.

Here, the foaming pressure of the foam member (F) is preferably 100 kg/cm 2 or more, and in this embodiment has a value of 120 to 140 kg/cm 2 .

The outlet (1) is an outlet for discharging the foam material (F) accommodated in the inside of the foam material injector (200).

The outlet 1 is provided to be detachably coupled to the inlet 16 of the expansion unit 10 .

The outlet 1 is provided to be reciprocally movable up and down as shown in FIGS. 7 and 8 .

The piston 2 is a piston capable of moving up and down reciprocally along the longitudinal direction of the hollow 6 of the cylinder 5 between an open position and a closed position, as shown in FIG. 7 .

The piston 2 is elastically biased downward by an elastic member (not shown).

In this embodiment, the piston 2 is disposed inside the hollow 6 of the cylinder 5, and is moved to the open position as shown in FIG. 8 by being pressed upward by the outlet 1 can be

When the pressing force by the outlet 1 is removed, the piston 2 moves downward again by the elastic member (not shown) to move to the closed position. At this time, the outlet 1 is pushed by the piston 2 to return downward again.

The cylinder (5) is a cylinder having a hollow (6) communicating with the outlet (1), and guides the reciprocating movement of the piston (2).

A first flow path 3 penetrating from the outer circumferential surface to the inner circumferential surface of the cylinder 5 is formed on one side of the cylinder 5 .

The first flow path 3 is a flow path provided to allow the first liquid L1 to flow, and one end is in communication with the inner circumferential surface of the cylinder 5 , and the other end is the inside of the foam injector 200 . It communicates with a storage unit (not shown) of the first liquid L1 provided in the .

In the present embodiment, a pair of the first flow passages 3 is provided, and as shown in FIG. 7 , they are disposed adjacent to each other.

A second flow path 4 penetrating from the outer peripheral surface to the inner peripheral surface of the cylinder 5 is formed on the other side of the cylinder 5 .

The second flow path 4 is a flow path provided to allow the second liquid L2 to flow, and one end communicates with the inner circumferential surface of the cylinder 5 , and the other end ends inside the foam injector 200 . It communicates with a storage unit (not shown) of the second liquid L2 provided in the .

In this embodiment, a pair of the second flow passages 4 is provided, and as shown in FIG. 7 , they are disposed adjacent to each other.

When the piston 2 is in the closed position, as shown in FIG. 7 , the outer peripheral surface of the piston 2 closes both the first flow path 3 and the second flow path 4 .

And when the piston 2 is in the open position, as shown in FIG. 8 , the piston 2 opens each one of the first flow path 3 and the second flow path 4 . At this time, the two liquids L1 and L2 are mixed in the hollow 6 of the cylinder 5 and then discharged through the outlet 1 .

In this embodiment, on one side of the outer circumferential surface of the piston 2, a first groove portion 2a for communicating the pair of first flow paths 3 with each other in the closed position is provided.

In the present embodiment, on the other side of the outer peripheral surface of the piston 2, a second groove portion 2b for communicating the pair of second flow paths 4 in the closed position is provided.

Here, since the first groove portion 2a and the second groove portion 2b are spatially isolated from each other, the first liquid L1 and the second liquid L2 do not mix with each other in the closed position.

The first groove portion 2a and the second groove portion 2b have positions corresponding to the pair of first passages 3 and the pair of second passages 4, respectively, as shown in FIG. have a shape

Hereinafter, an example of a method of using the emergency splint 100 of the above-described configuration will be described.

First, as shown in FIG. 3 , the inflatable part 10 is brought to the injured part of the human body and then the inflatable part 10 is fixed to the injured part by using the fastening device 20 . At this time, the strength of the coupling force is adjusted by using the adjusting device 21 of the fastening device 20 .

Then, as shown in FIG. 4, when the outlet 1 of the foam injector 200 is coupled to the inlet 16 of the expansion unit 10 and pressurized, as shown in FIG. 8, the outlet port By (1), the piston 2 moves upward and is positioned in the open position.

When the piston 2 is placed in the open position in this way, the piston 2 opens each one of the first flow path 3 and the second flow path 4, and the first flow path 3 and The two liquids (L1, L2) flowing out from the second flow path (4) into the hollow (6) of the cylinder (5) are mixed in the hollow (6) of the cylinder (5) and then the outlet (1) ), and the liquid foam (F) discharged from the outlet (1) is injected into the inner space (15) of the expansion unit (10) through the inlet (16).

In this embodiment, when the two liquids (L1, L2) are mixed in a 1:1 ratio, the foam material (F) is foamed and cured in 6 minutes at room temperature of about 20 ° C. can be fixed firmly.

On the other hand, when the emergency splint 100 is to be separated from the human body, as shown in FIG. 5 , after positioning the adjusting device 21 of the fastening device 20 in the release position, the pair of By rotating the inflatable parts 10a and 10b of the body to the outside with respect to the folding line H, the inflatable part 10 can be separated from the human body.

The emergency splint 100 of the above configuration is an emergency splint that can be used on the human body, and includes: an internal space 15 in which the foam material (F) can be accommodated; an expansion part 10 having an injection port 16 communicating with the internal space 15 so that the foam material F is injected into the internal space 15 and cured; a fastening device 20 capable of detachably fastening the inflatable part 10 to the human body; The foaming material (F) is accommodated therein in a liquid or semi-liquid state, and it is coupled to the injection port (16) and includes an outlet (1) for discharging the foamed material (F) accommodated therein. ( 200); so, the overall volume of the product is small and the portability is excellent, the foam material (F) is not accidentally cured in a situation not intended by the user, and the foaming material is rapidly formed in the event of an injury to the human body. There is an advantage that the ash (F) can be hardened by injecting it into the expansion part (10).

And the splint 100 for the emergency, the inflatable part 10, the outer shell member 11 including a sheet member made of a synthetic resin material; In order not to over-inflate the shell member 11, a reinforcing member 13 in the form of a mesh coupled to the shell member 11 is included. There is an advantage in that the pressing force applied to the human body can be increased.

In addition, the splint 100 for the emergency, the inflatable part 10, the endothelial member 12 including a sheet member made of a synthetic resin material; It is coupled to one surface of the endothelial member 12, the contact member 14 having a cloth member that can be in contact with the skin of the human body; so, there is an advantage in that it is possible to feel a soft touch when worn.

And, in the emergency splint 100, the inflatable part 10 is spatially separated into at least two or more zones 10a and 10b by a folding line H, and the inflatable part 10 is After the foam material (F) injected into the inner space (15) is cured, it can be folded around the folding line (H), so it is easy to separate from the human body after use.

In addition, in the emergency splint 100 , since the injection holes 16 are respectively installed in the separated regions 10a and 10b of the inflatable part 10 , the internal space 15 of the inflatable part 10 is ) has the advantage that the foam material (F) can be injected without an empty space.

And the splint 100 for emergency, the fastening device 20 is provided at one end of the inflatable part 10, and includes a locking member 211 capable of moving between a locking position and an unlocking position. adjusting device 21; A length adjustment member 22 provided at the other end of the expansion part 10, in which a plurality of locking grooves 221 that can be detachably coupled to the locking member 211 are arranged along the longitudinal direction; Therefore, there is an advantage in that the coupling force can be strongly or weakly adjusted while the adjusting device 21 and the length adjusting member 22 are coupled to each other.

In addition, the splint for emergency use 100, the foam material (F) is stored separately in two liquids (L1, L2) inside the foam material injector 200, discharged through the outlet (1) As the two liquids (L1, L2) are mixed, and after being injected into the internal space 15 of the expansion part 10, it is cured, so that the foaming material (F) in the inside of the foaming material injector 200 is There is an advantage that there is no accidental hardening.

And the splint 100 for the emergency, the foam material (F), a first liquid (L1) containing a polyol and a second liquid (L2) containing an isocyanate are mixed and synthesized as it contains polyurethane foam. , the foam material (F) can be quickly cured at the scene of an accident, the foam material (F) can provide an appropriate pressing force and elastic force to the human body after curing, and the durability of the foam material (F) is excellent There is this.

In addition, the splint 100 for emergency is at least a part of the inflatable part 10 is transparent or translucent so that the internal space 15 can be visually confirmed, so the foam material injected into the internal space 15 . There is an advantage that an appropriate amount of the foam material (F) can be injected into the expansion part 10 while directly checking the state of (F).

And the splint for emergency 100, the foam injector 200, the cylinder (5) having a hollow (6) in communication with the outlet (1); a piston (2) reciprocally movable between an open position and a closed position along the longitudinal direction of the hollow (6), the piston (2) capable of being moved under pressure to the open position by the outlet (1); a first flow path 3 penetrating from the outer circumferential surface to the inner circumferential surface of the cylinder 5 and through which the first liquid L1 can flow; a second flow path 4 penetrating from the outer circumferential surface to the inner circumferential surface of the cylinder 5 and through which the second liquid L2 can flow; and, as shown in FIGS. 7 and 8 , the piston 2 ) is in the closed position, the piston 2 closes both the first flow path 3 and the second flow path 4 , and when the piston 2 is in the open position, the piston (2) opens the first flow path 3 and the second flow path 4, so that the two liquids L1 and L2 are mixed in the hollow 6 of the cylinder 5 and then the outlet 1 ), so as shown in FIG. 4, when the outlet 1 of the foaming material injector 200 is coupled to the inlet 16 and then pressed and pressed, the two liquids L1 and L2 are naturally mixed. There is an advantage in that it can be injected into the inner space 15 after being formed.

In addition, in the emergency splint 100, a pair of the first flow path 3 is provided and disposed adjacent to each other, and the second flow path 4 is provided with a pair and disposed adjacent to each other, and the piston ( 2) on one side of the outer circumferential surface, a first groove portion 2a for allowing the pair of first flow paths 3 to communicate with each other in the closed position is provided, and on the other side of the outer circumferential surface of the piston 2, the closed position A second groove portion 2b is provided for communicating the pair of second flow passages 4 with each other at the position, and the first groove portion 2a and the second groove portion 2b are spatially isolated from each other, 4 , when the piston 2 is in the closed position, there is an advantage in that the two liquids L1 and L2 can be continuously maintained in a state in which they cannot be discharged through the outlet 1 .

In particular, since the splint 100 for emergency has the configuration of the first groove portion 2a and the second groove portion 2b, the two liquids L1 and L2 are introduced into the foam injector 200. It is also possible to inject and fill at the same time. At this time, a foam material filling device (not shown) having an injection nozzle (not shown) similar to the shape of the piston 2 is required, and a detailed description thereof will be omitted.

In this embodiment, the fastening device 20 includes a plurality of locking grooves 221 that can be detachably coupled to the adjusting device 21 including the locking member 211 and the locking member 211 having a length. Although it includes the length adjustment member 22 arranged along the direction, it is of course that a fastening device such as various bands, ropes, Velcro, hooks, etc. may be used.

In this embodiment, although the reinforcing member 13 has a mesh shape, it goes without saying that other types of reinforcing members such as various types of weaving or a plurality of wires arranged in one direction may be used.

Although the present invention has been described above, the technical scope of the present invention is not limited to the contents described in the above-described embodiments, and an equivalent configuration modified or changed by those of ordinary skill in the art is the technical scope of the present invention. It is clear that it does not deviate from the scope of the idea.

＊ Explanation of the symbols for the main parts of the drawing ＊
100: emergency splint
10, 10a, 10b: expansion part
11: Absence of skin
12: absence of endothelium
13: reinforcing member
14: contact member
15: interior space
16: inlet
20: fastening device
21: adjustment device
211: jam member
22: length adjustment member
221: jam groove
200: foam injector
1: outlet
2: piston
2a: first groove
2b: second groove
3: 1st Euro
4: 2nd Euro
5: cylinder
6: hollow
F: foam material
H: folding line
L1: first liquid
L2: second liquid

Claims (11)

As an emergency splint that can be used on the human body,
an internal space in which the foam material can be accommodated; an expansion part having an injection port communicating with the internal space so that the foam material is injected into the internal space and hardened;
a fastening device capable of detachably fastening the inflatable part to the human body;
Emergency splint comprising a; foam material injector that accommodates the foam material inside in a liquid or semi-liquid state, and is coupled to the injection port and includes an outlet for discharging the foam material accommodated therein. The method of claim 1,
The expansion part,
an outer skin member including a sheet member made of synthetic resin;
Emergency splint comprising a; reinforcing member in the form of a mesh coupled to the shell member so that the shell member is not excessively expanded. The method of claim 1,
The expansion part,
an endothelial member including a sheet member made of synthetic resin;
Emergency splint comprising a; a contact member coupled to one surface of the endothelial member and having a fabric member that can be in contact with the skin of the human body. The method of claim 1,
The expansion part is spatially separated into at least two or more zones by a folding line,
The expandable part, after the foam material injected into the inner space is cured, splint for emergency, characterized in that it can be folded around the folding line. 5. The method of claim 4,
Emergency splint, characterized in that each of the injection holes are installed in the separated regions of the expansion unit. The method of claim 1,
The fastening device is
an adjustment device provided at one end of the inflatable portion and including a locking member movable between a locked position and an unlocked position;
Emergency splint comprising a; a length adjustment member provided at the other end of the inflatable part, in which a plurality of locking grooves that can be detachably coupled to the locking member are arranged along the longitudinal direction. The method of claim 1,
The foaming material is stored separately in two liquids inside the foaming material injector, the two liquids are mixed as they are discharged through the outlet, and are injected into the internal space of the expansion unit and then hardened. dragon splint. 8. The method of claim 7,
The foaming material, emergency splint, characterized in that it comprises a polyurethane foam synthesized by mixing a first liquid containing a polyol and a second liquid containing an isocyanate. The method of claim 1,
The inflatable part, emergency splint, characterized in that at least a portion is transparent or translucent so that the inner space can be visually confirmed. The method of claim 1,
The foam injector,
a cylinder having a hollow in communication with the outlet;
a piston movable in a reciprocating position between an open position and a closed position along the longitudinal direction of the hollow and pressurized to the open position by the outlet;
a first flow path penetrating from the outer circumferential surface to the inner circumferential surface of the cylinder and through which a first liquid can flow;
and a second flow path penetrating from the outer circumferential surface to the inner circumferential surface of the cylinder and through which a second liquid can flow;
When the piston is in the closed position, the piston closes both the first flow path and the second flow path;
When the piston is in the open position, the piston opens the first flow path and the second flow path, so that the first liquid and the second liquid are mixed in the hollow of the cylinder and then discharged through the outlet. an emergency splint. 11. The method of claim 10,
The first flow path is provided with a pair and disposed adjacent to each other,
A pair of the second flow passages are provided and disposed adjacent to each other,
On one side of the outer peripheral surface of the piston, a first groove portion for communicating the pair of first flow paths in the closed position is provided,
On the other side of the outer peripheral surface of the piston, a second groove portion for communicating the pair of second flow paths in the closed position is provided,
Emergency splint, characterized in that the first groove portion and the second groove portion are spatially isolated from each other.

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