JP5787204B2 - Container used to deliver medical fluids and / or nutrients into the patient - Google Patents

Description

  The present invention relates to nutrients and medicines in a patient's body through a container used for storing and feeding a medical fluid and / or nutrient into the patient's body, particularly an opening provided in the nostril and / or abdominal cavity. It relates to a container used for feeding.

  For patients with any medical reason, such as esophageal strength and controllability that is limited or impeded and medical fluids and / or nutrients cannot be taken orally, feed nutrients and medicines into the patient's body A method, for example, a method of supplying nutrition directly to the stomach and / or small intestine of a patient through a catheter connected to a container containing medical fluid and / or nutrient (hereinafter referred to as enteral nutrition) is employed. . And as said container, there are generally two types of containers called a hard container and a soft container. Since the latter soft container can be easily deformed manually, there is an advantage that the whole amount can be pushed out of the container by hand. However, for example, a viscous liquid food is filled in the container as stored items. In addition, there are problems such as difficulty in cleaning and drying when the container is reused. On the other hand, the former hard container is usually difficult to be deformed manually, and the entire contents cannot be pushed out of the container manually.

  Conventionally, as a container used in enteral nutrition, for example, a container having the shape shown in FIG. 1 is known. That is, a cylindrical container body with a bottom having a continuous rib 8 formed in the circumferential direction on the outer surface of the side wall 7 in the vicinity of the catheter connecting portion 9 and the upper opening portion 11 connected to the opening portion 10 formed in the bottom surface 13. 1 and a cylindrical lid body 3 having a connecting portion (hinge) 2 connected to the cylindrical container body 1 and a rib 6 formed in a circumferential direction on the inner surface of the side wall 5. And 8, when the opening of the cylindrical lid 3 is extrapolated to the opening 11 of the cylindrical container body 1 and the lid 3 is put on the cylindrical container body 1, the rib 6 A container having a structure that can be locked or engaged over 8 is known.

2-114055 Design registration No. 1373828

  The known container described in paragraph 0003 has the following problems. That is, when the opening of the cylindrical lid 3 is extrapolated to the opening 11 of the cylindrical container body 1 and the cylindrical lid 3 is put on the cylindrical container body 1, the handler puts the rib 6 on the cylindrical container body 1. In order to get over the rib 8, a large force is required, and when the cylindrical lid body 3 is put on the cylindrical container body 1, the rib 6 can get over the rib 8 completely in one operation. It was difficult, and it was also difficult for the handler to determine whether or not the rib 6 completely got over the rib 8. Therefore, the handler of the container often uses the rib 6 without completely overcoming the rib 8, and when the container is used in such a state, for example, the container During transport or use, the cylindrical lid 3 is detached from the cylindrical container body 1 and the contents of the cylindrical container body 1 are spilled.

The present invention relates to a rib (hereinafter referred to as an outer wall rib) provided standing on the outer surface of a side wall in the circumferential direction, a medical liquid and / or nutrient outlet on the bottom, and a tube connected to the outlet. A bottomed cylindrical container body having a catheter connecting portion on the outer surface of the bottom surface, and a rib (hereinafter referred to as an inner wall) that extends in the circumferential direction on the inner surface of the side wall that is inserted into the upper opening of the bottomed cylindrical container A medical lid and / or a nutrient containing a cylindrical lid having a rib) and a flexible connecting portion (hinge) that connects the cylindrical container body and the cylindrical lid. By providing a container that satisfies the following requirements (1) to (4) in the container used for feeding into the container, the above-mentioned problems could be solved.
(1) The inner wall rib of the cylindrical lid is provided as an arc-shaped dividing rib in the circumferential direction of the inner surface of the side wall.
(2) The arc-shaped dividing rib of (1) is opposite to the arc-shaped rib (hereinafter referred to as rib 1) existing on the inner surface of the side wall of the connection portion (hinge) and the side wall to which the rib 1 is connected. Arc-shaped ribs (hereinafter referred to as ribs 2) present on the inner surface of the side wall on the side where the ribs 2 are provided and ribs (hereinafter referred to as ribs 3) different from the ribs 2 present on the inner surface of the side walls in the semicircular circumference on the side where the ribs 2 are present. Consists of.
(3) The number of the ribs 3 is one or more.
(4) The entire length in the circumferential direction of the ribs 1 to 3 (hereinafter referred to as rib length) is present on the inner surface of the side wall in the semicircular circumference on the side where the arc-shaped rib 2 exists.

  The container of the present invention has the structure as described above, thereby solving the problems of the known container as described in paragraph 0003, and the operator of the container holds the cylindrical lid 3. When covering the cylindrical container body 1, a small force is applied to the cylindrical lid 3, for example, the inner wall rib and the outer wall rib are locked or engaged only by being applied once to the top surface 4 of the cylindrical lid 3. There is an effect that the cylindrical lid 3 can be detached from the cylindrical container body 1 by the non-artificial external force after the locked state or the engaged state is formed. It can be done. Furthermore, the container according to the present invention also has an effect that the operator can easily determine that the locking or the engagement state has occurred because of a large clicking feeling when the locking or the engagement state occurs. it can. The effect of the present invention is that the ribs 2 and 3 are provided as divided ribs divided in the circumferential direction of the inner surface of the side wall of the cylindrical lid 3, and the ribs 2 and 3 are opposite to the side where the ribs 1 are present. This is considered to be due to the fact that the entire rib length is provided so as to exist within the semicircular circumference.

It is a well-known cylindrical container (front view) of the state which open | released the cover body. It is a cylindrical container (front view) of one embodiment of the present invention in a state where a lid is opened. It is sectional drawing which cut | disconnected the cover body of the cylindrical container of FIG. 2 by the XX 'line. It is a figure which cut | disconnects the cover body of the cylindrical container of FIG. 2 by XX 'line, and occupies the arrangement | positioning angle of the dividing rib of a cover body. It is sectional drawing which cut | disconnected the cover body of the cylindrical container of another embodiment of FIG. 2 by the XX 'line | wire. It is a figure which cut | disconnects the cover body of a comparative product by XX 'line, and occupies the arrangement | positioning angle of the dividing rib of a cover body. It is sectional drawing of the standing direction of the parting rib employ | adopted by this invention. It is an example which shows the arrangement | positioning state of the dividing ribs 1 and 2. FIG. 1 is a cylindrical container (front view) according to an embodiment of the present invention in which an annular band formed integrally with a cylindrical container body is detachably mounted. It is a figure which shows the fitting strength of a comparative product. It is a figure which shows the fitting strength of the container of this invention. It is a figure which shows the opening intensity | strength of the container of this invention, the container of a comparative product, and a commercially available container.

DESCRIPTION OF SYMBOLS 1 Cylindrical container main body 2 Connection part (hinge) which connects the cylindrical container main body 1 and the cylindrical lid 3
3 Cylindrical lid 4 Bottom surface of cylindrical lid 3 (top)
DESCRIPTION OF SYMBOLS 5 Side wall of cylindrical lid 3 6 Continuous rib provided in the circumferential direction on the inner surface of side wall 5 of cylindrical lid 3 61 Arc-shaped parting rib provided in the circumferential direction on the inner surface of side wall 5 of cylindrical lid 3 62 Arc-shaped dividing rib provided in the circumferential direction on the inner surface of the side wall 5 of the cylindrical lid 3 63 Arc-shaped dividing rib provided in the circumferential direction on the inner surface of the side wall 5 of the cylindrical lid 3 64 Cylindrical lid 3 Arc-shaped dividing ribs 7 provided on the inner surface of the side wall 5 in the circumferential direction 7 Side walls of the cylindrical container body 71 Dividing ribs 72 Dividing ribs 73 Dividing ribs 74 Dividing ribs 8 Continuous ribs 81 Dividing ribs 82 Dividing ribs 9 Opening 10 Cylindrical catheter connecting portion 10 to be connected Opening portion 11 formed on the bottom surface of the cylindrical container body 1 Upper opening portion 12 of the cylindrical container body 1 Band portion 13 Bottom surface 14 of the cylindrical container body 1 of the cylindrical lid 3 １５ 15 of the cylindrical container body 1 Center point n lines n of the top surface 4 of the edge portion A cylindrical lid 3 parts opening
m line m
p line p
Rib length of the opposing point p 'of the side wall 5 facing the circumferential center point q' of the rib length center point n 'connecting portion (hinge) 2 of the m' dividing rib 62 (rib 3) Center point q ′ of the connecting member (hinge part) circumferential center point n ″ circumferential center point m ″ of the dividing rib 72 circumferential center point p ″ of the dividing rib 73 circumferential center point α of the dividing rib 74 Arrangement angle of dividing rib β Arrangement angle of dividing rib

Hereinafter, embodiments of the container of the present invention will be described.
As shown in FIG. 2, the container according to the present embodiment includes outer wall ribs 81 and 82 that are arc-shaped dividing ribs provided on the outer surface of the side wall 7 in the circumferential direction, and medical liquid and / or the bottom surface 13. Alternatively, a nutrient container outlet 10 and a cylindrical container body 1 having a bottom having a tubular catheter connection portion 9 connected to the outlet 10 on the outer surface of the bottom face 13, and an upper opening of the cylindrical container body 1 Cylindrical lid having arc-shaped dividing ribs 61 (rib 1), 62 (rib 3), 63 (rib 2) and 64 (rib 3) provided on the inner surface of the externally inserted side wall 5 extending in the circumferential direction The body 3 and the cylindrical container body 1 and the cylindrical lid body 3 are configured to have at least a flexible connection portion (hinge) 2 for connecting the body 3 and the cylindrical lid body 3.

Examples of the arc-shaped dividing ribs 61 (rib 1), 62 (rib 3), 63 (rib 2) and 64 (rib 3) include those shown in FIGS.
The dividing rib 61 (rib 1) is provided as a dividing rib extending in the circumferential direction of the inner surface of the side wall 5 of the connecting portion to which the connecting portion (hinge) 2 is connected. The dividing rib 63 (rib 2) is provided as a dividing rib extending in the circumferential direction of the inner surface on the inner surface of the side wall 5 on the side facing the connecting portion of the side wall 5 to which the dividing rib 61 (rib 1) is connected. Is. Further, the dividing ribs 62 (rib 3) and 64 (rib 3) are formed as dividing ribs extending in the circumferential direction of the inner surface on the side wall inner surface in the semicircular side on the side where the dividing rib 63 (rib 2) exists. It is provided. That is, one of the features of this embodiment is that the dividing rib 62 (rib 3), the inner surface of the side wall 5 in the semicircular side on the side where the arc-shaped dividing rib 63 (rib 2) exists as described above. 63 (rib 2) and 64 (rib 3) are provided in a concentrated manner.

  Further, the dividing rib 3 is preferably configured as follows. That is, as shown in FIG. 4, the dividing ribs 62 (rib 3) and 64 (rib 3) are present on the inner surface of the side wall in which the dividing rib 63 (rib 2) is present, on the clockwise and counterclockwise side walls. Starting from the center point A of the top surface 4 (see FIG. 2) of the lid 3, an opposing point n ′ of the side wall 5 facing the circumferential center point q ′ of the connecting member (hinge part) connected to the side wall 5 Line (line m) connecting the line n, the center point A, and the center point m 'of the rib length of one of the dividing ribs 62 (rib 3) when the angle of the connected line (line n) is 0 degree And the angle formed by the line (line p) connecting the line n, the center point A, and the center point p ′ of the rib length of the dividing rib 64 (rib 3) is β. The α and β are preferably 55 to 75 degrees, more preferably 60 to 70 degrees.

  Further, the rib lengths of the dividing ribs 1 to 3 constituting the inner wall rib 6 can be appropriately determined within a range in which the object of the present invention can be achieved, but the whole is the arc-shaped dividing rib. It is necessary to exist on the inner surface of the side wall 5 in the semicircular circumference on the side where 63 (rib 2) exists. Further, the outer wall rib 8 of the cylindrical container body 1 may be formed as a continuous rib formed extending in the circumferential direction unlike the inner wall rib, or may be formed as an arc-shaped dividing rib. good.

  In addition, the ribs 2 and 3 in the present embodiment have three configurations of ribs 62 (rib 3), 63 (rib 2) and 64 (rib 3). As shown in FIG. 3 may have two structures of rib 62 (rib 3) and 63 (rib 2).

  The sectional shape of the inner wall rib 6 and the outer wall rib 8 in the standing direction may be any shape, for example, a triangular shape (a), a rectangular shape (b) as shown in FIG. Rectangle (c), tip shape is semi-elliptical and semi-elliptical shape (d), tip shape is triangular (e) and (f), trapezoid ( g) and the like. In order to achieve the effect of the present invention, it is preferable that one of the inner wall rib 6 and the outer wall rib 8 has a triangular cross section (a) and the other cross section has a quadrangular shape (b). The inner wall rib 6 has a triangular shape (a) and the outer wall rib 8 has a quadrangular shape (b).

  The sectional shape of the dividing ribs 61, 62, 63 and 64 is a triangle (a), and the distance from the apex of the rib 61 to the top surface is from the apex of the other dividing ribs 62, 63 and 64 to the top surface. When the distance is smaller than the distance (for example, h1 <h2 in FIG. 8), when the cylindrical lid body 3 is placed on the cylindrical container body 1, it can be covered with a single operation with a small covering force and a clicking feeling. The cylindrical lid 3 can be reliably put on the cylindrical container body 1. This effect is that the force applied to the top surface of the cylindrical lid 3 is applied to the dividing ribs 62, 63 and 64 with the contact point between the dividing rib 61 and the outer wall rib 8 of the cylindrical lid 3 as a fulcrum. It is surmised that these dividing ribs 62, 63 and 64 can be completely overcome the outer wall rib 8 with a small force. In particular, when the sectional shape of the inner wall rib 6 in the standing direction is triangular (a), the sectional shape of the inner wall rib 6 in the standing direction is triangular (a), and the sectional shape of the outer wall rib 8 is quadrangular (b In the case of the combination of (2), the above-described effect can be achieved more effectively. The same effect can be obtained even if the tip of the rib has a triangular pyramid shape, for example, (e) and (f) in FIG. .

  The connecting portion (hinge) 2 may be directly connected to the cylindrical container body 1, but considering the ease of cleaning operations performed when the container is reused, What was comprised so that isolation | separation was possible is preferable. As the connection part (hinge) 2 having such a configuration, for example, an annular ring that is separable from the cylindrical container body 1 as shown in FIG. 9 and is rotatably mounted on the side wall 7 of the cylindrical container body 1. The band 12 and the cylindrical lid 3 are integrally formed.

  The synthetic resin constituting the cylindrical container body 1 and the cylindrical lid 3 may be made of the same kind of synthetic resin or different resins, for example, polyethylene resin, polypropylene resin, polycarbonate Resin may be used, and these synthetic resins may be hard or soft, and the cylindrical container body 1 and the cylindrical lid 3 can be configured by appropriately combining these synthetic resins.

Example 1
With respect to the container of the present invention and the comparative container, the maximum insertion force required for fitting the cylindrical lid 3 and the cylindrical container body 1 and the cylindrical container body 1 fitted with the cylindrical lid 3 are as follows. The maximum opening force required for opening the cylindrical lid 3 was measured and tested.
The container of the present invention and the comparative product used for the measurement test has a shape as shown in FIG. 9, and the upper opening 11 has an inner diameter of 79.8 mm, an outer diameter of 82.8 mm, and a rib diameter of 84.8 mm. 600 ml cylindrical container body 1, cylindrical lid body 3 that is externally inserted into the upper opening 11 of the cylindrical container body 1, and an elastic connecting portion that connects the cylindrical container body 1 and the cylindrical lid body 3 (Hinge) 2 is configured.

  The cylindrical container body 1 of the container of the present invention and the comparative product container is made of polypropylene resin, and the cylindrical lid body 3 is also made of polypropylene resin, and the wall thickness of both is 1.5 mm. is there. The connecting portion (hinge) 2 is formed integrally with the cylindrical lid body 3 and the band portion 12 rotatably attached to the cylindrical container body 1. Moreover, the scale which shows a capacity | capacitance is formed in the cylindrical container main body 1 of the container of this invention, and the container of a comparative product.

  The cylindrical container body 1 constituting the container of the present invention is provided with two rectangular dividing ribs 81 and 82 arranged on the outer surface of the side wall 7 as shown in FIGS. (See FIG. 9). The rectangular dividing ribs 81 and 82 have a height of 2 mm, a center point in the height direction of 3.4 mm from the edge of the opening, and a circumferential length of 123 mm. , And 123 mm. The cylindrical container body 1 constituting the comparative container is also provided with ribs having the same structure and arrangement as the ribs provided on the cylindrical container body 1 constituting the container of the present invention. The dividing ribs 81 and 82 may be continuous ribs.

  As shown in FIGS. 3 and 4, the cylindrical lid 3 constituting the container of the present invention has a dividing rib 61 on the inner surface of the side wall 4 to which the hinge part 2 is connected, and a side wall 5 on the side facing the dividing rib 61. Are provided with a dividing rib 63 and dividing ribs 62 and 64 having angles α and β of 45 degrees shown in FIG. The shape of the dividing ribs 61, 62, 63 and 64 is such that the circumferential cross section of the cylindrical lid 3 is triangular, and the circumferential lengths thereof are 18.6 mm, 10 mm, 27.5 mm and 10 mm, respectively. It is. Further, the bottom part of each of the triangular ribs is 3.5 mm, and the height from the bottom part to the apex is 1.0 mm. Further, the apex of the triangle is from the top surface, and the dividing rib 61 is at a position of 5.9 mm, and the apexes of the other dividing ribs 62, 63, and 64 are at the same position at a position of 7.1 mm from the top surface. These positions may be different. In order to facilitate the opening of the cylindrical lid 3 from the cylindrical container body 1, fingers are formed in a bowl shape extending outward from the cylindrical lid 3 on the side opposite to the side to which the hinge portion is connected. The collar 14 to be gripped is formed.

  As shown in FIG. 6, the cylindrical lid 3 constituting the comparative product container has a dividing rib 71 on the inner surface of the side wall 5 to which the hinge portion 2 is connected, and the side wall 4 on the side facing the dividing rib 71. A dividing rib 73 is provided on the inner surface, and when the angle connecting the center point n ″ of the dividing rib 73 and the center point A of the top surface of the cylindrical lid 3 is set to 0 degree, it is counterclockwise 90 A rib 72 having a center point m ″ at an angle of degrees and a rib 74 having a center point P ″ at an angle of 90 degrees clockwise are provided. The dividing ribs 71, 72, 73 and 74 have a triangular cross-sectional shape in the circumferential direction, and the circumferential lengths thereof are 30 mm, 10 mm, 20 mm and 10 mm, respectively. Each of the ribs has a trapezoidal bottom portion of 2.2 mm and a height of 0.5 mm. Further, the cylindrical lid 3 is formed with a flange 14 that is gripped with a finger in order to facilitate the opening from the cylindrical container body 1 on the side opposite to the side to which the hinge is connected.

Measurement of fitting strength The fitting strength was measured using a model number AG-IS (tensile tester: manufactured by Shimadzu Corporation) as a measuring instrument. The fitting strength refers to the maximum insertion force when fitting the cylindrical lid 3 and the cylindrical container body 1 together.
A jig and a jig holding plate prepared by the applicant at the lower part of the cylindrical container body 1 obtained by cutting off the cylindrical catheter connecting part 9 connected to the bottom part of the cylindrical container body 1 of the present invention and the comparative product. Used to fix to AG-IS. A cylindrical lid 3 was placed between the upper opening of the fixed cylindrical container body 1 and the AG-IS chuck. The chuck was operated in the direction of the cylindrical container body 1 to measure the fitting strength. The measurement results are shown in FIGS.

From the measurement results shown in FIG. 10 and FIG. 11, it can be understood that the container of the present invention has the following effects compared to the container of the comparative product.
FIG. 10 shows the relationship between the moving distance (stroke) of the AG-IS chuck relative to the comparative product and the fitting strength, and FIG. 11 shows the moving distance (stroke) of the chuck of the AG-IS relative to the present invention and the fitting strength. FIG. 10 shows only two peaks A and B, whereas FIG. 11 shows only one peak C. As a result, the peaks A, B, and C are necessary for the cylindrical lid 3 and the cylindrical container body 1 to be fitted by the ribs of the cylindrical lid 3 getting over the ribs of the cylindrical container body 1. Since the fitting strength peak is shown, the product of the present invention can be easily fitted to the cylindrical lid body 3 and the cylindrical container body 1 by a single fitting operation. The comparative product shows that it is difficult to completely fit the cylindrical lid 3 and the cylindrical container body 1 by a single fitting operation of the cylindrical lid 3 and the cylindrical container body 1. ing. The test results show that the fitting strength of the peaks A and B is approximately 27 (N) and 23 (N), respectively, whereas the fitting strength of the peak C is approximately 16 (N). Therefore, the comparative product shows that a larger fitting strength is required when fitting the cylindrical lid body 3 and the cylindrical container body 1 than the product of the present invention.

  Furthermore, in the container of the present invention, if the structural requirements adopted in the container of the present invention, particularly the structural requirements of the ribs of the cylindrical lid 3, are adopted, a container having a fitting strength of about 15 to 20 (N) can be easily obtained. Although the container of the present invention having a fitting strength in the above range can be obtained, there is data that the average pressing force of one finger of a woman aged 20 to 60 is about 20 (N), From the viewpoint that the nurse can smoothly open the cylindrical lid 3 with one finger, it is very easy for the nurse to use.

Opening Test for Opening Strength Opening strength refers to the maximum opening force required to open a cylindrical lid body from a cylindrical container body on which the cylindrical lid body is extrapolated.
The following opening test was performed on the container of the present invention and a comparative product used in the fitting strength measurement test (however, the catheter connecting portion 9 of the cylindrical container body 1 was not cut off).
The cylindrical container body 1 was set so that the center of the flange 14 of the cylindrical lid body 3 was positioned at the position of the opposing scale of the cylindrical container body 1 and the cylindrical container body 1 and the cylindrical lid body 3 were securely fitted. Next, a hook shown in FIG. 13 is attached to the pull side of the push-pull scale (manufactured by :), and the tip of the hook of the hook is hooked on the hook 14 of the cylindrical lid 3 so that the cylindrical lid The body 3 was pulled up in the opening direction, and the maximum opening strength at the time of opening was measured.

  The unsealing test was performed on a commercially available nutrition container in addition to the container of the present invention and a comparative product, and the test results are shown in FIG. From the test results shown in FIG. 12, the unsealing strength when unsealing the comparative container requires a large unsealing strength of about 25 (N), whereas the unsealing strength when unsealing the container of the present invention. Is a small opening strength of about 15 (N). Therefore, the container of the present invention can open the cylindrical lid without difficulty as compared with the comparative container.

  Furthermore, the unsealing strength of the container of the present invention shown in FIG. 12 is approximately 15 (N). However, in the container of the present invention, the structural requirements adopted by the container of the present invention, particularly the arrangement of the ribs of the cylindrical lid 3 If a structure is employ | adopted, the container of about 14-17 (N) opening strength can be obtained easily. A container having an opening strength in the above range is very suitable as an opening strength in view of the fact that there is data that the average force with which a woman pushes a horizontal button with a finger is about 14.73 (N). Since the opening strength is not so low as about 5 (N) like a commercially available product, for example, opening operation by unintentional external force applied to the container, such as contact or collision with other objects, etc. Therefore, there is little risk of the cylindrical lid 3 being opened from the cylindrical container body 1.

Claims (8)

Ribs (outer wall ribs) provided to stand on the outer surface of the side wall in the circumferential direction, bottom surfaces, outlets for medical liquids and / or nutrients provided on the bottom surfaces , and tubes connected to the outlets A bottomed cylindrical container body having a catheter connecting portion on the outer surface of the bottom surface, and a rib (inner wall rib) extending in the circumferential direction on the inner surface of the side wall. A medical liquid and / or a nutrient containing a cylindrical lid body to be inserted and a flexible connection portion (hinge) for connecting the cylindrical container body and the cylindrical lid body are fed into the patient. The container used for this purpose satisfies the following requirements (1) to (4).
(1) The inner wall rib of the cylindrical lid is provided as an arc-shaped dividing rib in the circumferential direction of the inner surface of the side wall.
(2) The dividing rib of the cylindrical lid body of (1) is an arc-shaped rib (hereinafter referred to as rib 1) existing on the inner surface of the side wall where the connecting portion (hinge) is connected, and the connecting portion (hinge). there arcuate rib which is present as a dividing rib in the circumferential direction of the inner surface of the side wall of the side facing the side wall for connecting (hereinafter, the ribs 2) and divided in the circumferential direction of the side wall inner surface of the semi-circumference of the existing side of the ribs 2 another arcuate strip rib and the rib 2 present as ribs (hereinafter, the ribs 3) are those composed of.
(3) The number of the ribs 3 is one or more.
(4) The entire length in the circumferential direction of the ribs 2 and 3 exists on the inner surface of the side wall in the semicircular circumference on the side where the rib 2 exists. The container according to claim 1, wherein the two ribs 3 are present on the inner surface of the side wall in the clockwise direction and the counterclockwise direction of the inner surface of the side wall where the rib 2 exists. The two ribs 3 start from the center point of the top surface of the cylindrical lid body, and the opposite point of the side wall 5 that faces the circumferential center point of the connecting member (hinge part) connected to the side wall of the cylindrical lid body. When the angle of the connected line is 0 degree, the angle between the line, the center point of the top surface, and the line connecting the center point of the rib length of one rib 3 is α, and the line and the top surface The container according to claim 2, wherein α and β are 55 to 75 degrees, where β is an angle formed by a line connecting the center point A of the first rib and the center point of the rib length of the other rib 3. The container according to claim 3 , wherein α and β are 60 to 70 degrees. 5. The container according to claim 1, wherein one of the inner wall rib and the outer wall rib has a triangular shape (a) and a cross-sectional shape of the other is a square shape (b). The container according to claim 5, wherein the shape of the inner wall rib is a triangular shape (a) and the shape of the outer wall rib is a rectangular shape (b). The container in any one of Claims 1-6 in which the rib 1 was formed in the side wall inner surface of the position close | similar to the top | upper surface of a cylindrical cover body compared with the ribs 2 and 3. The container according to any one of claims 1 to 7, which has a fitting strength of 15 to 20 (N) and an opening strength of about 14 to 17 (N).

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