JPS59633A - Protective body for flat clinical thermometer - Google Patents

Abstract

PURPOSE:To obtain a protective body by which a thermosensitive performance is not impaired and which prevents mercury from scattering when a clinical thermometer is damaged by mistake, by providing a detaining part of a scapular part which detains the scapular part of the thermometer and a part storing a mercury tank having a prescribed space at its top end part. CONSTITUTION:A protective body is formed in the shape of a bag with a flexible transparent plastic film, and a detaining part of a scapular part which detains the scapular part of a clinical thermometer is provided at the side of a blocking end 2 and a part storing a mercury tank 7 having a space S which stores the mercury tank C at its top end part. The space S is made larger by 1-5mm. than the outer periphery of the mercury tank C in order not to damage adhesion and thermosensitive performance, and the space of 1-15mm. is disposed at the top end. When the clinical thermometer T is inserted into this protective body, the air in the storing part 7 is compressed, and therefore the part of the air is discharged by fingers for use. By this way, a protective body which prevents the mercury from scattering when the thermometer is damaged by mistake without giving damage to the thermosensitive performance.

Description

DETAILED DESCRIPTION OF THE INVENTION (I) Background of the Invention Technical Field The present invention allows a thermometer to be used in a medical institution without impairing its temperature-sensing performance while being covered in a bag shape.
By disposing of the thermometer without touching contaminated surfaces, the risk of infection through the thermometer can be prevented, and even if the thermometer is accidentally dropped and damaged during handling, it will not tear and the mercury in the thermometer will be scattered around. This article relates to a protective body for an L flat type thermometer that can be disposed of without any problems.

Prior art and its problems If a thermometer is accidentally dropped on the floor or damaged while being handled,
The glass pieces of the thermometer will scatter to the surroundings, and the mercury in the thermometer will also become many fine particles due to large surface tension and scatter to the surroundings.

If pieces of glass or mercury fall into joints on the floor or the like, it is very difficult to recover them and it is dangerous to leave them unattended. Therefore, there is a need for a thermometer protector that allows the thermometer to be used while being covered in a bag-like manner, and that can prevent mercury from scattering while retaining mercury inside even if the thermometer is accidentally dropped and damaged. However, the thermometer protector is made of an extremely thin transparent material that does not impair the thermosensing performance of the thermometer, and when placed under the armpit of a patient to measure the temperature, it comes into close contact with the thermometer mercury tank and effectively transmits body temperature. At present, flexible transparent plastic films are used, and other materials are not allowed. For this reason, ideally the thermometer protector should fit snugly to the thermometer and act as a reinforcing membrane to accommodate the thermometer and prevent the thermometer from being damaged by the shock of dropping.
This is not possible at present. Therefore, we have developed a protective body for the thermometer that can soften the shock of falling and prevent the thermometer from being damaged, or we can prevent the thermometer from being damaged by preventing the protective body from tearing even if the body temperature net is damaged by the shock of a falling knife. A thermometer protector is proposed that can prevent mercury from scattering while it is still trapped inside the body. The former protector accommodates the body temperature network with a cushioning function, and has not been put into practical use because it is difficult to satisfy the prerequisites of not impairing the thermosensing performance of the thermometer and not impairing ease of use. The latter type of protective body can be realized as long as it is devised so that even if the thermometer is damaged by the shock of dropping, it will not be torn by the glass pieces of the thermometer and the damaged body temperature net will not fly out.

Conventional thermometer protectors are intended to prevent infection; in other words, one thermometer is used to measure body temperature in the hands of many doctors, nurses, and other medical personnel and patients until it is damaged or lost. The purpose of this device is to prevent the risk of transmitting pathogenic bacteria from person to person using the thermometer as a medium, and it is disposable after each use. There is a type that has a space on the outer periphery of the thermometer to accommodate the body temperature net, and any of these types of thermometer protectors can be damaged by glass pieces of the thermometer if the thermometer is accidentally dropped on the floor etc. while being handled. Another drawback is that the body temperature net protrudes to the outside from the open end of the protector, causing the mercury in the thermometer to scatter to the surroundings.

(II) Purpose of the Invention The present invention was devised in view of the above-mentioned points, and is intended for use in flat-type thermometers, especially in medical institutions, etc., and has a thickness as thin as possible without impairing temperature-sensing performance. The thermometer is made of transparent plastic film, so it is disposable and not only prevents infection, but also prevents the thermometer from tearing even if you accidentally drop it on the floor while handling it and the shock from the drop causes damage to the thermometer. To provide a protector for an upper-type thermometer which prevents a broken thermometer from flying out from the opening end of the protector and prevents mercury in the thermometer from scattering to the surroundings.

According to the invention, this purpose is achieved by opening at one longitudinal end;
In a flat type thermometer protector made of a flexible transparent plastic film in a bag-like body with the other end closed, the thermometer scale accommodating part accommodates the scale of the thermometer on the open side, and the open end and the closed end. and a thermometer shoulder locking part having an inner circumference smaller than the outer circumference of the scale part of the thermometer and larger than the outer circumference of the mercury bath of the thermometer; A protection for a flat type thermometer, characterized in that a thermometer mercury tank accommodating part having a gap of 1"g to 5 g on the outer circumference of the mercury tank on the end side and a thermometer mercury tank housing part having a gap of 1% to 15% at the tip. accomplished by the body.

In order to easily insert the thermometer into the protective body, the present invention further provides a temperature gauge 1 which is longer than the inner circumference of the thermometer scale housing part and the outer circumference of the scale part of the thermometer by 3"X to 5".
In order to prevent the mercury bath from scattering from the protective body due to the shock of dropping, an embodiment in which the thermometer scale housing part has a length that is 20% to 40% longer than the length of the thermometer scale part. However, in order to prevent the thermometer from flying out of the protective body and scattering mercury due to the shock of dropping, the outer circumference of the thermometer scale is set at an appropriate distance from the opening end and the shoulder locking part of the thermometer. In this embodiment, the thermometer scale support part is formed by protruding inward from the plastic film so that the inner peripheral length is slightly shorter than that of the flexible plastic film. It is preferable that the thermometer is made of a plastic film, and that the temperature d'' scale housing part has an inner circumference length that is much shorter than the outer circumference of the thermometer scale.

In addition, the present invention supports the shoulder part of the thermometer from the mercury tank, which is the most easily damaged part, so that even if this part is damaged, the mercury tank accommodating part of the thermometer will not be torn. The thermometer has a mercury tank support part formed by protruding inwardly from a plastic film so as to be in close contact with the entire periphery of the mercury tank at an appropriate position from the shoulder part to the center of the mercury tank of the thermometer, at an appropriate distance from the shoulder locking part of the thermometer. It is better to make it an embodiment.

-Also, the present invention prepares a large number of spare thermometers so that the open end of the new spare can be easily opened to make it easier to insert the thermometer, and the protective body can be torn in half lengthwise from the open end to remove contaminated parts. (In order to make the opening disposable, the opening may have an open end piece on one side in the circumferential direction that is longer than the other part, or a pair of open ends that fit together.) An embodiment with an opening piece is preferred.

(1) Detailed Description of the Invention First, the structure of a flat type thermometer protector according to a preferred embodiment of the present invention is shown in FIGS. 1 to 4.

This protective body is made of a non-stretchable flexible transparent plastic film, and is a half-sided bag with one longitudinal end 1 open and the other longitudinal end 2 and both longitudinal sides 3 and 4 closed by heat welding. It is formed into a shape. Then, as shown in FIG.
As shown in the figure, there is a thermometer scale accommodating part 5 that accommodates the scale part a of the thermometer T when housed, and the outer circumferential length of the scale part a of the thermometer T is larger than the distance between the open end 1 and the closed end 2. It has a thermometer shoulder locking part 6 which is small and has an inner circumferential length larger than the outer circumferential length of the mercury bath C of the thermometer T, and when the thermometer T is attached as shown in FIG. A thermometer mercury tank accommodating section 7 having a space S at the outer periphery and the tip of the mercury tank C is provided closer to the closed end 2 side. The thermometer scale housing part 5 is approximately 30χ longer than the scale part a in order to prevent the flat thermometer scale part a from popping out, and furthermore, the length of the thermometer scale part accommodating part 5 is approximately 30χ longer than the length of the scale part a to prevent the flat thermometer scale part a from popping out. The inner circumference is approximately 4% longer than the outer circumference of the scale.Also, as shown in Figure 3, the thermometer T is placed at the open end l.
In order to make the opening easier to open when inserting the thermometer, and to make it disposable when removing the thermometer after using the thermometer, the thermometer can be removed hygienically without touching the surface of the protector by tearing the protector to make it disposable. The open end 1 has an opening piece 8 on one side in the circumferential direction that is longer than the other part.

FIG. 2 shows an open end opening piece 80 at both proximal ends with a cut that allows the protective body to be torn off by turning over the thermometer from a state where the thermometer is housed in the protective body, avoiding the heat-welded closing part. 9°9 is shown.

The thermometer shoulder locking portion 6 has a shape in which the outer edges of the closed portions formed by the hot bath garments on both sides are more constricted than the other portions, but the shape is not limited to this.

For example, when making a trench from the scale part accommodating part to the mercury tank accommodating part, which has a width of F rows, that is, a band shape, and heat welding both sides, the cylinder corresponding to the shoulder locking part is extended inward and the heat welded part is formed. may be formed. The thermometer mercury tank accommodating section 6 is formed larger than the mercury tank C so that when the thermometer T is housed there is a space S at the outer periphery and tip of the mercury tank C. This is not to say that it is fine even if the thermometer T is dropped, but it must be as large as possible so that even if there is a misalignment in the part of the mercury tank C that is damaged when the thermometer T is dropped, there is no risk of it being pushed by the glass fragments and escaping slightly and breaking. It must be satisfactorily. Therefore, the minimum size of the space S can be determined by experimentally making flat thermometer protectors of various sizes, inserting flat thermometers into them, dropping them from a high place, and damaging the mercury tank. Whether or not the mercury bath accommodating portion 7 of the protector will be torn by the fragments of the thermometer can be confirmed and determined only by a breakage experiment. This experiment will be described later, but it was confirmed that in the present invention, the space S must be at least 1% at the outer periphery and tip of the mercury tank C.

Furthermore, the mercury tank accommodating section 7 does not have to be as large as possible; it may reduce the ease of use due to the shape of a flat thermometer on the outer periphery and tip of the thermometer mercury tank C, or it may be placed under the armpit to measure body temperature. The space S must not be made so large that it may be difficult to make close contact between the armpit and the mercury tank C due to the air sealed in the space S.

Therefore, when the mercury tank accommodating part 7 accommodates the thermometer, it is not suitable if the space S provided at the outer periphery and the tip of the mercury tank C is too small or too large. The inner circumference length should be approximately 63 to 31% (longer than the outer circumference of the mercury tank) such that the inner circumference has a space S of 15% to 15%. %
of space S (preferably 5% to 5%).

This is because if the inner circumference length is such that less than 1% of the space on the outer circumference of the mercury tank C is formed, the mercury tank accommodating portion 7 may be torn by fragments of the mercury tank C.

In addition, if the inner circumference exceeds 5%, the mercury tank accommodating portion 7 will swell greatly with the enclosed air, and when the thermometer is held under the armpit, the mercury tank C will not come into close contact with the armpit, impairing the thermosensing performance of the thermometer. .

- Also, if the gap is less than 1% of the tip Vζ of the mercury tank C, the mercury tank housing part 7 may be torn by fragments of the mercury tank, and if the gap exceeds 15"g, the mercury tank housing part 7 may be damaged. This is because the end is too long and gets in the way, making it difficult to hold the thermometer under the armpit.

Next, the operation of the flat thermometer protector configured as described above will be explained. As shown in FIG. 3, when inserting and storing the flat thermometer T into the flat thermometer protector, grasp the opening end piece 8 and open it. Insert thermometer T.

Then, since the inner circumference of the thermometer scale housing part 5 is larger than the outer circumference of the thermometer scale part a, the housing part 5 is accommodated in the scale part a.
K is inserted smoothly and the open end opening piece 8 is pulled to insert and house the scale part a into the housing part 5. And thermometer T
Insert the thermometer until the scale part a contacts the shoulder part 6 of the thermometer.

Then, since the thermometer mercury tank storage part 7 is in close contact with the thermometer shoulder part 6 all around, it will be expanded to the maximum extent with the enclosed air, and the body will remain as it is. A? fR", the enclosed air makes it difficult for the thermometer mercury tank C to come into close contact with the protector and the skin, making it impossible to measure body temperature. Therefore, by lightly compressing the mercury tank housing part 7 with your fingers, an appropriate amount of the sealed air is added to the thermometer shoulder locking part 6 in order to provide a cushioning function instead of all of the sealed air.
And it passes between the thermometer scale housing part 5 and the thermometer T and is discharged to the outside. At this time, the sealed air may be difficult to discharge in some cases, so the sealed air is discharged by squeezing with a finger without destroying the sealing function by making a hole in the mercury tank housing part 7 with a needle or the like. If the enclosed air is appropriately discharged, when the thermometer is held under the armpit to measure the body temperature, the thermometer mercury tank C will fit into the armpit through the thin film of the body temperature side mercury tank storage part 7 which is in close contact with both sides. It can be attached well and body temperature can be measured. If you want to dispose of the flat thermometer protector for measuring the body temperature of a patient who is at risk of infection or by putting it in the patient's mouth, the opening piece 8
If you turn over the protective body with the cutting lower part 7, you can tear off the protective body and the thermometer can be taken out without touching the outer surface of the protective body. If the thermometer covered with the protective body is accidentally dropped on the floor or the like while being handled and damaged, the thermometer mercury tank accommodating part 7 will have a swollen effect on the mercury tank C because it is somewhat swollen with the enclosed air. and mercury tank C
The scattering energy of the fragments of the mercury tank C is kept to a minimum, and the fragments of the mercury tank C bend slightly and escape depending on the flatness of the mercury tank C, so the plastic film does not tear. more than 30'''
X: Because it is long enough, the mercury in the thermometer can be reliably trapped inside without the damaged thermometer flying out of the protective body.

(TV) Other Embodiments of the Invention As shown in FIG. 5, the thermometer scale housing portion of the flat thermometer protector may have a thermometer clamping portion projecting inward. In this embodiment, in order to prevent the thermometer from popping out after damage, the purpose can be sufficiently achieved without making the thermometer scale housing part longer than the scale of the thermometer.

As shown in FIG. 6, the body temperature side scale accommodating part of the flat thermometer protector may be in close contact with the thermometer scale part all around. However, in this case, the flexible plastic film must be stretchable. If the thermometer scale accommodating part is in close contact with the scale of the thermometer all around, it is possible to sufficiently prevent the thermometer from being damaged or falling out. Further, if the flexible plastic film is stretchable, the thermometer can be easily attached without tearing the protective body.

As shown in FIG. 7, the flat thermometer protector is formed into a planar bag shape, and the bag end 2 may be formed into an arc shape.

As shown in FIG. 8, the flat thermometer protector may be formed into a planar bag shape, and the bag-like end 2 may be formed into a square shape.

As shown in FIG. 9, the flat thermometer protector is formed into a planar bag shape, and the bag-like end 2 is formed into a rectangular shape that is slightly tapered. A mercury tank support formed by forming a plastic film protruding inward so as to be in close contact with the entire periphery of the mercury tank C of the thermometer at an appropriate position closer to the shoulder than the center of the mercury tank C at an appropriately accessible position from the clamping part 6 of the thermometer. Section] 1 may be provided.

However, if you accidentally drop the thermometer, the mercury bath support section]
1 supports the mercury tank C, the shock of the fall tends to be applied to the part near the shoulder of the mercury tank C of the thermometer, and the support eζ of the support part 11 makes it difficult for the mercury tank C to be damaged. However, by reducing the misalignment of the damaged part near the shoulder of the mercury tank C, the support part 11 supports the mercury tank C that is damaged [7], and the mercury tank housing part 7 is not torn and the mercury in the thermometer is removed. It can be trapped inside.

As shown in FIG. 10, the flat thermometer protector is formed into a flat bag shape, and the proximal ends of both sides of the opening piece 8 are sewn by a sewing machine, avoiding the heat welded closing part. Eye 12,
It may also be one with 12 in it.

Therefore, when removing the thermometer from the body temperature measuring hindlimb protector, it can be torn off from the perforation by going around the opening piece 8.

1. As shown in the figure, a flat thermometer protector is formed into a three-dimensional bag shape from a non-stretchable flexible plastic film, and includes a scale housing part 5, a shoulder part 1] two parts 6 and The mercury tank accommodating portion 7 may be formed to have an elliptical cross-sectional shape.

In particular, the cross-sectional shape of the mercury tank accommodating part 7 is an oblique shape such as an ellipse. The plastic film does not wrinkle in the housing part 7, so when measuring body temperature by holding the thermometer under the armpit, the housing part 7
It is preferable because it adheres well to the body temperature mercury tank CK.

In this modification, a pair of opening pieces 8, 8 facing each other are provided by making cuts.

In addition, in the present invention, the flexible transparent plastic film is a stretchable flexible plastic film, and the inner circumference of the thermometer scale housing part is slightly shorter than the outer circumference of the thermometer scale, so that the thermometer scale part has an inner circumference length slightly shorter than the outer circumference length of the thermometer scale part. The bag-like body may be stretched by applying an insertion force to accommodate the scale part of the thermometer in close contact with the entire circumference. However, this includes the case where it is formed into a three-dimensional bag shape.

(V) Experimental results Table 1 shows the flat type thermometer protector The protector Y for a flat type thermometer that is inserted and housed until it hits the edge, and the size of the mercury tank accommodating part according to the present invention have an inner circumferential length that leaves approximately 1% gap space around the outer periphery of the mercury tank. Set the inner circumference of the Satoshi thermometer scale housing part to be 4% longer than the outer circumference of the thermometer scale.
Furthermore, regarding the flat type thermometer protector Z having the shape shown in FIG. 1 in which the length of the accommodation part is 30% longer than the length of the scale part, each thermometer is housed and each is placed on the floor of the Lonium with the mercury bath facing downward. The thermometer was dropped 100 times, and the number of times the thermometer was damaged, the number of times the mercury tank accommodating part of the protector was damaged, and the number of times the thermometer popped out were investigated.

Table 1 (Vl) Effects As explained above, the flat thermometer protector of the present invention is made of a flexible transparent plastic film, one longitudinal end is open, the other end is bag-shaped, and the flat thermometer protector of the present invention is made of a flexible transparent plastic film and has a bag-like shape at the other end. When inserting and storing the thermometer with the
Since the inner circumference has a gap of 1% to 5% and a space of 1% to 15% at the tip of the mercury tank, when the thermometer is placed under the armpit, the plastic film may prevent the armpit from adhering to the mercury tank. Therefore, even if the thermometer is accidentally dropped on the floor or the like during temperature measurement and the mercury bath is damaged, the pieces of the mercury bath can move freely within the mercury bath housing and the mercury bath housing will not be damaged. It does not break and prevents mercury and glass fragments from scattering to the surrounding area, and the thermometer shoulder locking part makes contact with the thermometer shoulder and prevents further insertion of the thermometer, so it can be stored in the mercury tank mentioned above. There is a space at the tip of the mercury tank inside the thermometer, and by extension, there is room for the pieces of the mercury tank to move inside the mercury tank housing, so even if the thermometer breaks, mercury will not scatter outside.Furthermore, it is made of plastic film, making it economical. In general, it can be used as a disposable stool, and it can also be used to prevent infection.

In addition, as an uninvented embodiment, the thermometer scale part housing part is made 20% to 40% longer than the thermometer scale part, and the inner circumference length is made 3% to 5% longer than the outer circumference length of the thermometer. The thermometer can be easily attached to the body, and a damaged thermometer can be sufficiently prevented from jumping out from the protective body.

Further, as an embodiment of the present invention, the thermometer has a thermometer scale part support part formed by protruding inwardly from a plastic film so as to allow insertion and accommodation of the body temperature=i scale part by applying a required insertion force to the thermometer. Even if the inner circumference of the thermometer scale housing part is slightly longer than the outer circumference of the thermometer scale to make it easier to insert and take out the thermometer, the thermometer will not fly out due to shock when dropped, and
The thermometer shoulder can be maintained in close contact with the thermometer shoulder locking part Vζ, making it easy to adjust the sealing of an appropriate amount of air into the thermometer mercury tank storage part.When the thermometer is dropped, fragments of the VC mercury tank can damage the mercury tank storage part. It can prevent it from breaking.

In addition, as an embodiment of the present invention, the inner circumference of the thermometer scale part accommodating part is made of a stretchable flexible transparent plastic film and is slightly shorter than the outer circumference of the thermometer scale part. By applying insertion force, the scale part of the thermometer can be accommodated in the thermometer scale housing part without wrinkles of the plastic film, making it easier to handle and serving as a reinforcing membrane for the thermometer scale part. In addition, it is possible to prevent the thermometer from popping out when the thermometer is dropped, and furthermore, as an embodiment of the present invention,
“If the thermometer has a mercury bath support part made of a plastic film that protrudes inward so that it is in close contact with the entire circumference of the mercury bath at an appropriate position near the shoulder from the center of the mercury bath, the thermometer may be accidentally dropped. When the thermometer is put away, the shock of the fall will be concentrated on the part near the shoulder of the mercury tank, and it will support the fragments of the mercury tank and reduce discrepancies with the scale that can cause damage to the protective body. .

Furthermore, in the case where the present invention has one opening piece or two pieces facing each other, it is not only easy to open the protective body opening when inserting the thermometer, but also it is possible to grasp and pull the opening opening piece. This makes it easier to insert and store the thermometer by accommodating the thermometer scale in close contact with the entire circumference.Furthermore, when disposing of the protector, it is easy to fold up the opening piece without exposing it to the surface of the protector. The protective body can be torn apart, making it suitable for infection prevention.

[Brief explanation of drawings]

Figures 1, 2, 3, and 4 show embodiments of the flat thermometer protector of the present invention, where Figure 1 is a front view, Figure 2 South is a back view of the opening end, and Figure 4 is a back view of the opening end portion. FIG. 3 is a diagram showing a flat thermometer being inserted into the lower thermometer protector, and FIG. 4 is a diagram showing a thermometer housed therein. Figures 5, 6, 7, 8 and 9 are shown)]
FIG. 1 is a partial front view in which the flat thermometer protector is formed into a planar bag shape according to an embodiment of the present invention, and in particular, the shape of the thermometer mercury tank accommodating part is changed. FIG. 1 is a back view showing a state in which a flat type thermometer protector according to an embodiment of the present invention is formed into a flat bag shape, and in particular, perforations are made at both ends of the opening piece. Fig. 11 is a front view of a flat thermometer protector formed into a three-dimensional bag shape according to an embodiment of the present invention. 1... Opening (or open end), 2... Bag-shaped end. , 5...
・Thermometer scale housing portion, 6...Thermometer shoulder locking portion, 7
... Thermometer mercury tank housing part, 8... Open end piece,
9... Cut end, 10... Thermometer scale support part, 11
...Thermometer mercury bath support part, 12...perforation. Patent Applicant: Terumo Corporation Representative, Patent Attorney Hiroshi Onuma Figure 9'l Figure 8 Figure 11

Claims (1)

[Scope of Claims] 1. A flat thermometer protector made of a bag-like flexible transparent plastic film with one longitudinal end open and the other end closed, with a thermometer mounted on the open end side. A thermometer scale housing part that accommodates the scale part, and a thermometer shoulder part having an inner circumference length smaller than the outer circumference length of the scale part of the thermometer and larger than the outer circumference length of the mercury bath of the thermometer between the open end and the closed end. A thermometer mercury tank housing having a stop part and a space of 1% to 5 gourds on the outer periphery of the mercury tank on the closed end side from the stop part when the thermometer is attached, and a space of 1% to 15 gourds at the tip. A protective body for a flat type thermometer, characterized by having a section. 2. The thermometer scale accommodating part is 20% to 40% longer than the scale of the thermometer, and further has an inner circumference length of:
The protector for a flat thermometer according to claim 1, wherein the thermometer scale housing portion is formed to be 3% to 5% longer than the outer circumference of the scale of the thermometer. 6. The thermometer scale accommodating part is formed by forming a plastic film protruding inward at a position appropriately away from the opening and the thermometer shoulder locking part so that the inner circumference is slightly shorter than the outer circumference of the thermometer scale. A flat thermometer protector according to any one of claims 1 to 2, which has a thermometer shoulder locking part. 4 Flexible transparent plastic film id A flexible transparent plastic film having stretchability, and the thermometer scale housing part has an inner circumference length slightly shorter than the outer circumference length of the thermometer scale part. The protector for a flat type thermometer according to item 1. 5. The thermometer mercury tank accommodating part has a plastic film protruding inward at a position appropriately away from the thermometer shoulder locking part so that the entire circumference of the mercury tank of the thermometer is in close contact with an appropriate position closer to the shoulder than the center of the thermometer. A protector for a flat type thermometer according to any one of claims 1 to 4, comprising a mercury bath support portion formed by forming a mercury bath support portion. 6. The flat thermometer protector according to any one of claims 1 to 5, wherein the open end has an open end piece on one side in the circumferential direction that is longer than the other part. 7. The protector for a flat type thermometer according to any one of claims 1 to 5, wherein the open end has a pair of open end pieces that fit together.