JP4564200B2 - Tube pull-out prevention device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a tube withdrawal prevention device that delays or prevents a patient or the like from withdrawing a tube attached to a human body during nutritional supplementation, blood transfusion, infusion, or the like.
[0002]
[Prior art]
Tubes for replenishing nutrients are used by patients who cannot eat on their own or who cannot swallow things for some reason, and are inserted through the patient's nasal cavity to supply liquid nutrients directly to the stomach It is something that can be done.
[0003]
[Problems to be solved by the invention]
However, since such a tube feels uncomfortable if it is not used to wearing, there is a problem that the patient pulls out of the nasal cavity when the caregiver keeps an eye. In addition, depending on the patient, the tube is pulled out at every meal, so that it must be reinserted each time, which increases the burden on both the patient and the caregiver.
[0004]
Furthermore, if the tube falls out halfway during a meal, there is also a risk that the tube enters the trachea and the nutrients being ingested enter the lungs. Similarly, there is a risk that the tube used at the time of blood transfusion or infusion is pulled out by the patient.
[0005]
Therefore, in order to solve the above-mentioned problems, traditionally, tubes for replenishing nutrients can be used to tie patients' hands or special gloves only during meals where there is a high risk of danger from pulling out. The measures were taken to prevent the tube from being directly gripped by attaching the.
[0006]
However, such a method not only makes patients feel physically and mentally uncomfortable, but is also regarded as a problem of human rights violations. Moreover, in the case of a tube used at the time of blood transfusion or infusion, the actual situation is that there is no effective measure.
[0007]
The present invention has been made in view of the above, and an object of the present invention is to obtain a tube withdrawal prevention device that can delay or prevent the withdrawal of a tube without giving a mental burden to a tube wearer such as a patient. To do.
[0008]
It is another object of the present invention to provide a tube withdrawal preventing device that can warn a patient, a caregiver or the like during a tube withdrawal operation.
[0009]
[Means for Solving the Problems]
In order to solve the above-described problems and achieve the object, a tube pull-out prevention device according to the present invention covers a part of a tube attached to a human body with a cover member formed to be stretchable and covers the cover member. It is formed so as to be movable relative to the tube.
[0010]
Assume that a patient wearing a tube pull-out prevention device tries to pull out a tube consciously or unconsciously due to discomfort. In this case, since the tube is covered with the cover member, the patient cannot directly touch the tube, and grasps the cover member. For this reason, even if it tries to pull out a tube from a human body, since a cover member only moves relatively with respect to a tube and expand | extends, it does not pull out from a human body. This effectively delays or prevents the tube from being pulled out.
[0011]
The tube pull-out prevention device according to the next invention is a pressure detection means that is installed at least in a part of the cover member and detects that a pressure higher than a predetermined level is applied, and outputs a detection signal, and a detection signal of the pressure detection means Warning means for issuing a warning based on the above.
[0012]
Therefore, a warning is issued by the pressure detection means and the warning means when the tube is grasped at the initial stage where the tube is pulled out, so that the pulling operation can be prevented and the tube has been temporarily pulled out. Even if it is a case, it can respond to a subsequent treatment quickly.
[0013]
A tube pull-out preventing device according to the next invention is provided in a part of the tube or the cover member, and when the cover member is extended by a predetermined amount, it detects this and outputs a detection signal. Warning means for issuing a warning based on the detection signal.
[0014]
Therefore, when the tube pulling operation is performed, a warning is issued by the switch means and the warning means, so that the pulling operation can be prevented, and even if the tube is pulled out, It is possible to respond quickly to treatment.
[0015]
In the tube pull-out prevention device according to the next invention, the cover member is formed in a coil shape, one end is fixed in the vicinity of the human body mounting portion of the tube, and the other end is a free end. Thereby, it is possible to effectively delay or prevent the tube from being pulled out from the human body with a simple configuration.
[0016]
The tube withdrawal preventing device according to the next invention is configured such that the warning by the warning means is composed of at least one of pronunciation, character or graphic display, and light emission. Thereby, a warning can be reliably performed by an appropriate warning mode.
[0017]
In the tube pull-out prevention device according to the next invention, the warning means includes a communication means for notifying the remote location of the warning content. This eliminates the need for a caregiver or the like to always be near the tube wearer, thereby reducing the burden.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a tube pull-out prevention device according to the present invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.
[0019]
Embodiment 1 FIG.
FIG. 1 is an explanatory diagram showing a tube pull-out prevention device according to Embodiment 1 of the present invention. In the following description, nutritional supplementation for patients who are difficult to eat on their own will be described as an example. One end of the tube 1 is connected to the nutrition set 3 and the other end is inserted into the body from the patient's nasal cavity. Here, the nutrition set 3 is a container for containing a nutrient to be taken by the patient. The tube 1 is provided with a stopcock (not shown) for adjusting the amount of nutrition replenished from the nutrition set 3.
[0020]
The expansion / contraction cover 2 formed in a coil shape so as to be extendable / expandable covers the tube 1 and has one end fixed to the tube 1 as described later. The switch unit 4 is installed on the tube 1 and is configured by a sensor such as a microswitch, for example, and is configured such that when the end of the extendable cover 2 is touched by the extension, the switch is turned on. Further, when the switch is turned on, a signal is transmitted to the alarm device 5. The alarm device 5 is constituted by, for example, a speaker, and outputs a predetermined warning sound such as a buzzer or a sound when a signal is input from the switch unit 4.
[0021]
Next, the telescopic cover 2 and the switch unit 4 will be described in more detail with reference to FIG. Here, FIG. 2 is explanatory drawing which shows the installation state of an expansion-contraction cover and a switch part. The extendable cover 2 is formed by winding a material such as resin in a coil shape, and its end a is fixed to the tube 1 in the vicinity of the patient's nasal cavity. The fixing means of the end a to the tube 1 may be fixed by a tape or the like, or both the tube 1 and the end a may be provided with an uneven engagement portion.
[0022]
On the other hand, the end b of the tube 1 is a free end, and the extendable cover 2 can be extended in the direction A in the figure. The installation position P of the switch unit 4 on the tube 1 is set such that the end b thereof turns on the switch unit 4 when the extendable cover 2 extends a predetermined length. Here, the predetermined length is a length such that the force applied to the end portion a of the extendable cover 2 is smaller than the force that pulls the tube 1 out of the nasal cavity.
[0023]
Next, the operation will be described. It is assumed that the patient is consciously or unconsciously pulling out the tube 1 due to discomfort. In this case, since the tube 1 is covered with the expansion / contraction cover 2, the patient cannot directly touch the tube 1 and grasps the expansion / contraction cover 2. For this reason, even if the tube 1 is pulled out from the nasal cavity, the telescopic cover 2 is simply extended until the predetermined force is applied and does not come out of the nasal cavity.
[0024]
When the extendable cover 2 extends to the installation position P of the switch unit 4, the end b contacts and the switch unit 4 is turned on, so that the switch unit 4 transmits a signal to the alarm device 5 and receives the signal. The device 5 emits a warning sound (for example, a buzzer sound). This warning sound can urge the patient who intends to withdraw the tube 1 to stop the operation, and also pay attention to the patient who is unconsciously trying to withdraw. Can be aroused.
[0025]
Furthermore, since it is possible to inform the caregiver that the patient is pulling out the tube 1, it is possible to prevent the tube 1 from being pulled out. Further, even if the tube 1 has been pulled out, it is possible to quickly respond to the subsequent treatment.
[0026]
When this apparatus is used in a hospital or the like, the alarm device 5 may be installed in a remote nurse center, or may be installed in both the vicinity of the patient and a remote place such as the nurse center. It may be. These can be realized via wireless or wired communication means.
[0027]
As described above, according to the tube pull-out preventing device according to the first embodiment, since the telescopic cover 2 is provided on the tube 1, it is possible to effectively delay or prevent the tube 1 from being pulled out from the nasal cavity.
[0028]
Further, when the tube 1 is pulled out, a predetermined warning sound is emitted by the switch unit 4 and the alarm device 5, so that the pull-out operation can be prevented and the tube 1 is temporarily pulled out. Even if it is a case, it can respond to a subsequent treatment quickly.
[0029]
In addition, by installing the alarm device 5 at a caregiver's standby place or the like, the caregiver does not need to be always near the patient, so the burden can be reduced. Further, the switch unit 4 may be connected to an existing nurse call instead of the alarm device 5. In this way, a system can be constructed at a low cost.
[0030]
In the first embodiment, the description has been given by taking the stretchable cover 2 formed in a coil shape and stretchable as an example. However, the present invention is not limited to this, and any structure can be used as long as the patient cannot directly hold the tube 1. For example, it may be a bellows-like tube formed to be stretchable.
[0031]
In addition, the switch unit 4 has been described as being configured by a sensor such as a microswitch, but the present invention is not limited to this, and any sensor having any structure can be used as long as the switch is turned on when the extendable cover 2 is extended. For example, a pressure sensor or the like can be used.
[0032]
The alarm device 5 is not limited to a speaker that emits a buzzer sound or the like. For example, the alarm device 5 may be formed so as to emit a voice message, display character / graphic information, or use light emitting means such as an LED. Good. Moreover, you may make it use combining them.
[0033]
In the present embodiment, the end a of the stretchable cover 2 is described as being fixed to the tube 1, but the present invention is not limited to this. Here, another example will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the member which is the same as that of the already demonstrated member, or duplicate description is abbreviate | omitted.
[0034]
As shown in FIG. 3, an ear hook 6 is provided at one end (end a) of the stretchable cover 2 on the human body wearing side. One end of the ear hook 6 is installed on the telescopic cover 2 and the other end is formed in a ring shape. When this device is used, the ring-shaped part is put on the patient's ear.
[0035]
For example, when the patient tries to pull out the tube 1, the tube 1 is covered with the expansion / contraction cover 2, so that the patient cannot touch the tube 1 directly and grasps the expansion / contraction cover 2. For this reason, even if the tube 1 is pulled out from the nasal cavity, the stretchable cover 2 simply extends with the ear hook 6 as a fulcrum, and no force is applied to the tube 1, and the tube 1 cannot be pulled out. Absent.
[0036]
As described above, if the tube 1 and the extendable cover 2 are configured independently, the tube 1 will not come out together with the extendable cover 2 no matter how much the extendable cover 2 extends.
[0037]
The ear hook 6 is preferably a flexible member that can be stretched and contracted.
Further, the ear hooking portion 6 may be configured so as to be hooked on both ears, or the ring portion may be enlarged instead of being hooked on the ear, and the ring portion may be turned to the back of the head.
[0038]
Alternatively, one end of the stretchable cover 2 on the human body mounting side may be directly attached to the patient's human body with a tape or the like. Further, a clip or the like may be installed at one end of the stretchable cover 2 on the side of the human body and attached to the patient's clothes. Also in this case, the tube 1 does not come off together with the extendable cover 2 as described above.
[0039]
Moreover, although the application example in the case of supplying a patient with nutrition has been described, the present invention is not limited to this, and it can be similarly applied to a tube used for blood transfusion, infusion, or the like, and a similar effect can be expected.
[0040]
Embodiment 2. FIG.
FIG. 4 is an explanatory view showing a tube withdrawal preventing device according to a second embodiment of the present invention, FIG. 5 is a perspective view showing an installation example of a reed switch, and FIG. 6 is a perspective view showing a main part of the reed switch. It is. In addition, the same code | symbol is attached | subjected to the member which is the same as that of the already demonstrated member, or duplication description is abbreviate | omitted.
[0041]
In the second embodiment, the switch portion 4 is configured as a reed switch having lead portions 4a and 4b as contact points, and the lead portions 4a and 4b are opened by the extension of the expansion / contraction cover 2, so that the tube 1 can be pulled out. It can be detected. This switch part 4 is installed in the vicinity of the edge part a of the expansion-contraction cover 2, as shown in FIG. 4 and FIG.
[0042]
As shown in FIGS. 5 and 6, the lead portions 4 a and 4 b are provided in a pair of adjacent coil portions of the extendable cover 2, and are usually in contact with the alarm device 5. A loop circuit is configured, and a weak current is passed by the alarm device 5.
[0043]
Next, the operation will be described. Even if the patient tries to pull out the tube 1 from the nasal cavity, the patient cannot touch the tube 1 directly because the tube 1 is covered with the stretchable cover 2, and grasps the stretchable cover 2. For this reason, even if the tube 1 is to be pulled out from the nasal cavity, the expansion / contraction cover 2 simply extends in the direction B in FIG. 4 and does not come out of the nasal cavity until a predetermined force is applied.
[0044]
When a predetermined force or more is applied to the expansion / contraction cover 2 and the expansion / contraction cover 2 is extended, the adjacent coil portions are separated from each other, so that the lead portions 4a and 4b are separated and the contacts are opened. Then, no current flows through the loop circuit, and the alarm device 5 detects this and outputs a predetermined warning sound or message. In order to reduce false detections and missing detections, so-called velcro tapes and magnets are provided on the coils where the lead portions 4a and 4b are installed so as to adjust the force with which the lead portions 4a and 4b open the contacts. It may be.
[0045]
This warning sound or the like can prompt a patient who is consciously pulling out the tube 1 to stop the operation, and also be careful for a patient who is unconsciously pulling out. Can be aroused.
[0046]
Furthermore, since it is possible to inform the caregiver that the patient is pulling out the tube 1, it is possible to prevent the tube 1 from being pulled out. Further, even if the tube 1 has been pulled out, it is possible to quickly respond to the subsequent treatment.
[0047]
When this apparatus is used in a hospital or the like, the alarm device 5 may be installed in a remote nurse center, or may be installed in both the vicinity of the patient and a remote place such as the nurse center. It may be. These can be realized via wireless or wired communication means.
[0048]
As described above, according to the tube pull-out preventing device according to the second embodiment, the tube 1 can be effectively delayed or prevented from being pulled out from the nasal cavity.
[0049]
Further, when the tube 1 is pulled out, a predetermined warning sound is emitted by the switch unit 4 and the alarm device 5, so that the pull-out operation can be prevented and the tube 1 is temporarily pulled out. Even if it is a case, it can respond to a subsequent treatment quickly.
[0050]
In addition, by installing the alarm device 5 at a caregiver's standby place or the like, the caregiver does not need to be always near the patient, so the burden can be reduced.
[0051]
In the second embodiment, the switch unit 4 is configured as a reed switch. However, the present invention is not limited to this, and any switch can be used as long as it can detect that the extendable cover 2 is extended by a predetermined amount. The switch means having such a structure may be used.
[0052]
Embodiment 3 FIG.
The third embodiment is an initial stage in which the patient tries to pull out the tube 1 and detects that the patient has grasped the tube 1 and gives a predetermined warning such as a buzzer to the outside. In the present embodiment, the pressure detection means is constituted by the contact wires 10a and 20b installed on the contact cover 10 and the extendable cover 2, which will be described later.
[0053]
FIG. 7 is an explanatory view showing a tube withdrawal preventing device according to Embodiment 3 of the present invention. In addition, the same code | symbol is attached | subjected to the member which is the same as that of the already demonstrated member, or duplication description is abbreviate | omitted.
[0054]
The contact cover 10 is installed so as to cover the telescopic cover 2. In the present embodiment, the contact cover 10 is installed on the end a side having the highest probability of grasping when the patient performs an operation of pulling out the tube. This probability is obtained by the inventors through experiments.
[0055]
Here, the contact cover 10 will be described with reference to FIG. The contact cover 10 includes a cover part 11, a conductor part 12, a non-conductor part 13, and a spacer 14. On the cover part 11, a conductor part 12, a non-conductor part 13, and a spacer 14 are installed as shown in FIG. The The cover part 11 is composed of gauze or the like. The conductor portion 12 may be anything as long as it conducts electricity such as metal. The non-conductor portion 13 is made of a stretchable material that does not conduct electricity. In this embodiment, a net-like polyurethane is used. The spacer 14 is also made of a stretchable material that does not conduct electricity, like the non-conductor portion 13, and is installed between the conductor portions 12 as shown in FIG. FIG. 8 b is a side view of the contact cover 10, and the spacer 14 has a height higher than that of the conductor portion 12, and is configured so that the nonconductor portion 13 is floated from the conductor portion 12. FIG. 8 c is a cross-sectional view when the contact cover 10 is wound around the telescopic cover 2. As shown in this figure, the conductor portion 12 is not in contact with the stretchable cover 2 by the non-conductor portion 13 and the spacer 14.
[0056]
Next, the lead wires 20a and 20b installed on the telescopic cover 2 will be described with reference to FIG. The lead wires 20a and 20b are installed at a predetermined distance from the coil of the expansion / contraction cover 2, respectively. Here, the predetermined distance is a position where the lead wire 20a matches the upper end a of the conductor portion 12 and the lead wire 20b matches the lower end b of the conductor portion 12 in FIG. As shown in FIGS. 7 and 9, the lead wires 20 a and 20 b form a loop circuit with the alarm device 5, and a weak current flows through the alarm device 5.
[0057]
Next, the relationship between the contact cover 10 and the lead wires 20a and 20b will be described. As shown in FIG. 7, the contact cover 10 is installed on the telescopic cover 2, and the position is wound so that the lead wire 20 a is aligned with the upper end a of each conductor portion 12 and the lead wire 20 b is aligned with the lower end b. FIG. 8 c shows a cross section in this state. As described above, the lead wires 20 a and 20 b and the conductor portions 12 are usually not in contact with each other by the non-conductor portion 13 and the spacer 14. However, when a certain pressure or more is applied to the contact cover 10, the non-conductor portion 13 and the spacer 14 are crushed, and the lead wires 20a and 20b and the conductor portions 12 come into contact with each other. At this time, current flows through the lead wires 20a and 20b constituting the loop circuit.
[0058]
Next, the operation will be described. The alarm device 5 tries to pass a weak current through the loop circuit of the lead wires 20a and 20b, but normally no current flows because the lead wires 20a and 20b are separated. Here, it is assumed that the patient tries to pull out the tube 1 from the nasal cavity. At this time, the patient first performs an operation of grasping the tube 1. Therefore, when the patient grasps the contact cover 10, the non-conductive portion 13 and the spacer 14 of the contact cover 10 are crushed by the pressure, and the conductor portion 12 and the lead wires 20a and 20b come into contact with each other. Then, current flows through the loop circuit described above, and the alarm device 5 detects this and outputs a predetermined warning sound or message.
[0059]
This warning sound or the like can prompt the patient who is consciously grasping and pulling out the tube 1 to stop the operation, and can also be used for a patient who is unconsciously grasping and pulling out. Similarly, attention can be drawn.
[0060]
Furthermore, since it is possible to inform the caregiver that the patient is pulling out the tube 1, it is possible to prevent the tube 1 from being pulled out. Further, even if the tube 1 has been pulled out, it is possible to quickly respond to the subsequent treatment.
[0061]
In this embodiment, the contact cover 10 is installed only on the end a side as shown in FIG. 7, but the present invention is not limited to this. For example, you may make it cover all the expansion-contraction covers 2, and you may make it provide the contact cover 10 like a present Example in the multiple places of the expansion-contraction cover 2. FIG. If comprised in this way, it can detect even if a patient grasps any part of the tube 1, and can also delay extraction by the expansion-contraction cover 2. FIG.
[0062]
When this apparatus is used in a hospital or the like, the alarm device 5 may be installed in a remote nurse center, or may be installed in both the vicinity of a patient and a remote place such as a nurse center. It may be. These can be realized via wireless or wired communication means.
[0063]
As described above, according to the tube pull-out preventing device according to the third embodiment, the tube 1 can be effectively prevented from being pulled out from the nasal cavity.
[0064]
In addition, by installing the alarm device 5 at a caregiver's standby place or the like, the caregiver does not need to be always near the patient, so the burden can be reduced.
[0065]
In the third embodiment, the pressure detecting means is described as being configured by the lead wires 20a and 20b installed on the expansion / contraction cover 2 and the contact cover 10, but the present invention is not limited to this, and the patient can expand and contract the expansion / contraction cover 2. Any structure may be used as long as it can detect a pressure higher than a predetermined pressure generated by grasping.
[0066]
【The invention's effect】
As described above, according to the tube pull-out preventing device according to the present invention, a part of the tube attached to the human body is covered with the cover member formed to be stretchable and the cover member is moved relative to the tube. Since it was formed, it is possible to effectively delay or prevent the tube from being pulled out from the human body.
[0067]
According to the tube pull-out preventing device according to the next invention, there is provided a pressure detecting means that is installed at least in a part of the cover member and detects that a predetermined pressure is applied and outputs a detection signal; And a warning means for issuing a warning based on the detection signal, so that a warning is issued by the pressure detection means and the warning means when the tube is gripped in the initial stage where the tube is pulled out. In addition to being able to prevent, even if the tube is pulled out, it is possible to respond promptly to subsequent treatments.
[0068]
According to the tube pull-out preventing device according to the next invention, the switch means provided on a part of the tube or the cover member, detects when the cover member is extended by a predetermined amount and outputs a detection signal, and the switch And a warning means for issuing a warning based on the detection signal of the means, so when the tube pulling operation is performed, a warning is issued by the switch means and the warning means, so that the pulling operation can be prevented, Even if the tube has been pulled out, it is possible to quickly respond to the subsequent treatment.
[0069]
According to the tube pull-out prevention device of the next invention, the cover member is formed in a coil shape, one end is fixed in the vicinity of the human body mounting portion of the tube, and the other end is a free end. Can be effectively delayed or prevented from being pulled out of the human body.
[0070]
According to the tube pull-out preventing device according to the next invention, the warning means includes at least one of the sound generation means, the character or graphic display means, and the light emission means. Can be done.
[0071]
According to the tube pull-out preventing device according to the next invention, the warning means includes the communication means for notifying the remote site of the warning content, so that caregivers do not need to be always near the tube wearer and the burden is high. Can be reduced.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is an explanatory view showing a tube pull-out preventing device according to a first embodiment of the present invention.
FIG. 2 is an explanatory diagram showing an installation state of an extendable cover and a switch unit.
FIG. 3 is an explanatory diagram of a state in which an ear hooking portion is installed on an extendable cover.
FIG. 4 is an explanatory view showing a tube withdrawal preventing device according to a second embodiment of the present invention.
FIG. 5 is a perspective view showing an installation example of a reed switch.
FIG. 6 is a perspective view showing a main part of the reed switch.
FIG. 7 is an explanatory view showing a tube pull-out preventing device according to a third embodiment of the present invention.
FIG. 8 is a perspective view showing a main part of the contact cover.
FIG. 9 is a perspective view showing an example of installation of lead wires.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Tube 2 Telescopic cover 3 Nutritional set 4 Switch part 4a, 4b Lead part 5 Alarm device 6 Ear hook part 10 Contact cover 11 Cover part 12 Conductor part 13 Non-conductor part 14 Spacer 20a, 20b Lead wire

Claims (6)

A tube pull-out prevention device characterized in that a part of a tube to be attached to a human body is covered with a cover member formed to be stretchable and the cover member is formed to be movable relative to the tube. Pressure detection means installed at least in a part of the cover member and detecting that a pressure higher than a predetermined level is applied and outputting a detection signal;
Warning means for issuing a warning based on a detection signal of the pressure detection means;
The tube pull-out prevention device according to claim 1, comprising: A switch means provided on a part of the tube or the cover member, which detects this when the cover member extends a predetermined amount and outputs a detection signal;
Warning means for issuing a warning based on a detection signal of the switch means;
The tube pull-out prevention device according to claim 1, comprising: The tube pull-out prevention according to any one of claims 1 to 3, wherein the cover member is formed in a coil shape, one end is fixed in the vicinity of a human body mounting portion of the tube, and the other end is a free end. apparatus. The tube pull-out prevention device according to any one of claims 2 to 4, wherein the warning means includes at least one of a sound generation means, a character or graphic display means, and a light emission means. The tube pulling prevention device according to any one of claims 2 to 5, wherein the warning means includes communication means for notifying a remote location of the warning content.

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