JP5891271B2 - Enema container and insertion nozzle - Google Patents

Description

  The present invention relates to an enema container and an insertion nozzle for an enema.

  The following techniques have been proposed for the insertion nozzle of an enema container.

  Japanese Patent Laid-Open No. 2002-35119 (Patent Document 1) discloses that a nozzle can be curved by forming a deformed portion having an elliptical cross section in the nozzle. The deformed portion is provided so as to be continuous with the bellows located on the container body side of the nozzle.

  In addition, in Utility Model Registration No. 3070635 (Patent Document 2), the insertion nozzle is configured by a large-diameter leading end cylindrical portion and a rear-end cylindrical portion having a smaller diameter than the leading end cylindrical portion, thereby being inserted into the body. It is disclosed to prevent the nozzles that have been removed from being inadvertently pulled out.

JP 2002-35119 A Utility Model Registration No. 3070635

  As described above, although an insertion nozzle provided with a recess on the nozzle surface has been conventionally proposed, the insertion nozzle is flat from the tip to the center. When such an insertion nozzle is used, in order to smoothly insert the nozzle into the body, it has been required to wet the tip of the nozzle with an enema liquid, petrolatum or the like.

  The present invention has been made to solve the above-described problems, and an object thereof is to provide an enema container and an insertion nozzle capable of reducing insertion resistance in a dry state.

  An enema container according to an aspect of the present invention includes a container body that stores enema liquid therein, and an insertion nozzle that is connected to the container body and inserted into the body. The insertion nozzle is provided at the distal end, and is located at the distal end side along the axial direction, the ejection port for ejecting the enema liquid, the proximal diameter portion, and is located adjacent to the fundamental diameter portion. Also includes an annular recess recessed inwardly. The axial length from the tip of the insertion nozzle to the rear end of the basic diameter portion located on the tip side is 10 mm or less.

  Preferably, the basic diameter portion and the annular recess of the insertion nozzle are alternately positioned along the axial direction.

  Preferably, the axial length of each basic diameter portion is 10 mm or less, and the axial length of each annular recess is 10 mm or less.

  Preferably, the difference between the outer diameter of the basic diameter portion and the outer diameter of the annular recess is 1 mm or less.

  Preferably, the boundary portion between the basic diameter portion and the annular recess is formed in an R shape.

  More preferably, the axial length of the second and subsequent basic diameter portions as viewed from the distal end portion of the insertion nozzle is 3 mm or less.

  The number of annular recesses is preferably three.

  An insertion nozzle according to another aspect of the present invention is an enema nozzle that is inserted into the body, and is provided at the distal end portion, and is provided at the distal end side along the axial direction with a spout for ejecting enema fluid. A basic diameter portion that is positioned, and an annular recess that is located adjacent to the basic diameter portion and that is recessed inward from the basic diameter portion. The axial length from the front end portion to the rear end of the basic diameter portion located on the front end side is 10 mm or less.

  According to the present invention, insertion resistance can be reduced in a dry state.

It is a front view of an enema container concerning an embodiment of the invention. It is a side view of an enema container concerning an embodiment of the invention. It is an enlarged view which shows the insertion nozzle of the enema container which concerns on embodiment of this invention. It is a longitudinal cross-sectional view of the insertion nozzle which follows the IV-IV line of FIG. It is a figure which shows the example of a shape of the annular recessed part of an insertion nozzle. It is a figure which shows the other example of a shape of the annular recessed part of an insertion nozzle. It is a figure which shows the further another example of a shape of the annular recessed part of an insertion nozzle. It is a figure which shows the 6 wave type insertion nozzle of a comparative example. It is a figure which shows the flat type insertion nozzle of a comparative example. It is a figure which shows notionally the frictional force measuring method in 1st experiment. It is a bar graph which shows the measurement result of 1st experiment. It is a figure which shows notionally the frictional force measuring method in 2nd experiment. It is a line graph which shows the measurement result in the dry state of 2nd experiment. It is a line graph which shows the measurement result in the wet state of 2nd experiment.

  Embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and description thereof will not be repeated.

(About the composition of the enema container)
Referring to FIGS. 1 and 2, an enema container 1 according to the present embodiment includes a container body 11 that stores enema liquid therein, an insertion nozzle 12 that protrudes from the container body 11 and is inserted into the body. It has. The enema container 1 is made of resin and is integrally formed by, for example, blow molding. In the description of the enema container 1, it is assumed that the direction in which the insertion nozzle 12 protrudes (tip end side) is upward, and the opposite direction is downward.

  The container body 11 includes, for example, a storage portion 21 having a bellows shape and a cylindrical neck portion 22 provided above the storage portion 21. When the user grasps and holds the storage portion 21, the enema fluid flows out from the neck portion 22.

  The insertion nozzle 12 will be described with further reference to FIGS. The insertion nozzle 12 includes a holding concave portion 33 connected to the upper end of the neck portion 22 of the container body 11 and an insertion shaft portion 32 connected to the upper end of the holding concave portion 33.

  As shown in FIG. 4, the distal end portion (upper end portion) of the insertion shaft portion 32 is provided with a spout 31 for ejecting enema fluid into the body at the time of use, and the outer diameter reference value φa is It is approximately 6 mm. Further, the axial length L1 of the entire insertion shaft portion 32 is approximately 40 mm. In addition, the axial direction length L1 of the insertion shaft part 32 should just be 30 mm or more. Moreover, since the enema container 1 is what is called household use, the axial direction length L1 of the insertion shaft part 32 is usually 50 mm or less.

  The holding recess 33 is a portion that is held by the filling device when the enema liquid is filled into the storage portion 21 of the container body 11 from the filling core inserted into the ejection port 31 in the manufacturing process. The holding recess 33 has an outer diameter φc of about 5 mm. The axial length L2 of the holding recess 33 is, for example, 8 mm. The thickness T of the insertion nozzle 12 is uniform from the upper end to the lower end, and is 1 mm, for example.

  Here, the insertion shaft portion 32 of the insertion nozzle 12 is configured by an R-shaped tip portion 41 having a jet port 31, a plurality of basic diameter portions 42, a plurality of annular recess portions 43, and a lower end inclined portion 44. Yes. The basic diameter portions 42 and the annular recesses 43 are alternately positioned along the axial direction. Both the basic diameter portion 42 and the annular recess 43 are annular portions centered on the axis 13 of the insertion nozzle 12.

  In the present embodiment, the insertion nozzle 12 has four basic diameter portions 42 and three annular recesses 43. In FIG. 3, the ranges of the four basic diameter portions 42 are indicated by symbols A1 to A4, and the ranges of the three annular recesses 43 are indicated by symbols B1 to B3. That is, in order from the distal end portion 41 side, in the first basic diameter portion 42 indicated by the range A1, the first annular recess portion 43 indicated by the range B1, the second basic diameter portion 42 indicated by the range A2, and the range B2. A second annular recess 43 shown, a third basic diameter portion 42 indicated by a range A3, a third annular recess 43 indicated by a range B3, and a fourth basic diameter portion 42 indicated by a range A4. Yes. In FIG. 4, the boundary between the basic diameter portion 42 and the annular recess 43 adjacent to each other is indicated by a broken line.

  Each basic diameter portion 42 has a cylindrical shape with a flat cross section, and its outer diameter is approximately 6 mm, which is the same as the above-described outer diameter reference value φa. The annular recess 43 is recessed inward from the basic diameter portion 42, and its outer diameter φb is approximately 5.6 mm. That is, the difference between the outer diameter φa of the basic diameter portion 42 and the outer diameter φb of the annular recess 43 is approximately 0.4 mm. In FIGS. 3 and 4, the uneven shape of the insertion shaft portion 32 is exaggerated for easy understanding. The outer diameter of the annular recess 43 represents the minimum outer diameter of the annular recess 43.

  The lower end inclined portion 44 is provided between the fourth basic diameter portion 42 (A4) located on the rear end side and the holding recess 33 described above. These boundary portions are preferably formed in an R shape.

  Here, the axial length of the first basic diameter portion 42 (A1) is about 5 mm. Since the axial length of the distal end portion 41 is approximately 2 mm, the axial length L11 from the distal end of the insertion nozzle 12 to the rear end of the first basic diameter portion 42 is approximately 7 mm. On the other hand, the axial length L13 of each of the second and subsequent basic diameter portions 42 is approximately 1 mm, which is sufficiently shorter than the axial length L11 of the first basic diameter portion 42. One reason why the first basic diameter portion 42 is longer than the second and subsequent basic diameter portions 42 is that when a cap (not shown) is put on the distal end side of the insertion nozzle 12, the cap is locked. In order to make it possible, a certain length is required.

  The axial length L12 of each annular recess 43 is approximately 9 mm. Examples of the shape of the annular recess 43 are shown in FIGS. These drawings show examples of the shape of the annular recess 43 when the portion P surrounded by an ellipse in the longitudinal sectional view of FIG. 4 is enlarged and rotated 90 ° to the left side of the drawing.

  As shown in FIG. 5, the annular recess 43 may be configured by a flat valley bottom 51 and a pair of inclined portions 52 that sandwich the valley bottom 51 and are adjacent to the basic diameter portion 42. However, in order to reduce the insertion resistance, as shown in FIG. 6, the boundary portion 61 between the valley bottom portion 51 and the inclined portion 52 and the boundary portion 62 between the inclined portion 52 and the basic diameter portion 42 are formed in an R shape. It is desirable that it is formed. Or as shown in FIG. 7, the annular recessed part 43 does not have the flat valley bottom part 51, and the whole may be formed in the smooth dish shape. Note that at least the boundary portion 62 that indicates the boundary between the basic diameter portion 42 and the annular concave portion 43 may be R-shaped.

  In the present embodiment, it is assumed that the annular recess 43 has a shape as shown in FIG. However, in FIG. 3, for convenience, the boundary between the flat basic diameter portion 42 and the annular recess 43 and the boundary between the inclined portion and the valley bottom portion of the annular recess 43 are shown by thin lines.

  According to the insertion nozzle 12 as described above, since the upper end of the first annular recess 43 (B1) is located within a range of 10 mm from the tip, the insertion nozzle 12 can be inserted even when it is in a dry state. Resistance can be reduced. Experimental results showing this will be described below.

(Experimental results)
The experiment was performed using a TL201Ts type frictional force measuring instrument manufactured by Trinity Lab.

  In the first experiment, as shown in FIG. 10, foamed rubber 91 inclined by 45 ° with a blade friction jig (not shown) is brought into contact with the sample 80 in a dry state, speed: 60 mm / min, load: Scanning was performed in the axial direction under the conditions of 30 g and distance: 30 mm, and the frictional force (dynamic frictional force) at the contact portion between the sample 80 and the foamed rubber 91 was measured.

  The sample 80 of the first experiment includes an insertion nozzle 12 of the present embodiment (hereinafter also referred to as “three-wave type insertion nozzle 12”), a six-wave type insertion nozzle 12A shown in FIG. 8, and a flat type insertion shown in FIG. There are three types of nozzles 1012.

  Similar to the three-wave type insertion nozzle 12, the insertion shaft portion 32A of the six-wave type insertion nozzle 12A has basic diameter portions 42 and annular recesses 43 alternately. However, the number of the annular recesses 43 is six. is there. Further, the outer diameter φd of the annular recess 43 is approximately 5.8 mm.

  The insertion shaft portion 32B of the flat insertion nozzle 1012 has no irregularities on the surface, and the outer diameter thereof is approximately 6 mm, which is the same as the outer diameter φa of the basic diameter portion 42 described above.

  The measurement result of the friction force (unit: gf) for each sample 80 in the first experiment is shown in the bar graph of FIG. As apparent from the graph of FIG. 11, the friction force is significantly reduced in both the three-wave insertion nozzle 12 and the six-wave insertion nozzle 12 </ b> A as compared with the flat insertion nozzle 1012. Specifically, the frictional force of the three-wave insertion nozzle 12 was 17.1 gf, the frictional force of the six-wave insertion nozzle 12A was 17.6 gf, and the frictional force of the flat insertion nozzle 1012 was 25.0 gf. When the 3-wave type and the 6-wave type were compared, the 3-wave type was slightly better.

  In the second experiment, based on the first experiment, the three-wave insertion nozzle 12 having the lowest frictional force in the first experiment and the flat insertion nozzle 1012 shown in FIG. The friction force was measured.

  Specifically, as shown in FIG. 12, the sample 80 fixed to the fixing jig 93 is brought into contact with the human arm 92, and the speed: 60 mm / min, the load in both the dry state and the wet state. : 10 g, 20 g, 50 g, distance: 20 mm, and scanning in the axial direction, the frictional force of the contact portion between the sample 80 and the arm portion 92 was measured. In addition, the frictional force was calculated from the data in the section of 7.2 mm to 16.8 mm in the scanning section of 20 mm. In the wet state, the surface of the arm portion 92 was wetted with enema solution before measurement.

  The measurement result of the frictional force (unit: gf) for each sample 80 in the second state in the second experiment is shown in the line graph of FIG. Further, the measurement result of the frictional force (unit: gf) for each wet sample 80 in the second experiment is shown in the line graph of FIG. 13 and 14, the transition of the frictional force of the three-wave insertion nozzle 12 is indicated by a solid line, and the transition of the frictional force of the flat insertion nozzle 1012 is indicated by a one-dot chain line.

  Specifically, the frictional force of the three-wave insertion nozzle 12 in the dry state was 5.8 gf at a load of 10 g, 11.1 gf at a load of 20 g, and 30.1 gf at a load of 50 g. The friction force of the flat insertion nozzle 1012 in the dry state was 7.3 gf at a load of 10 g, 17.1 gf at a load of 20 g, and 39.1 gf at a load of 50 g. The frictional force of the three-wave insertion nozzle 12 in the wet state was 6.6 gf at a load of 10 g, 13.6 gf at a load of 20 g, and 32.3 gf at a load of 50 g. The frictional force of the flat insertion nozzle 1012 in the wet state was 6.8 gf at a load of 10 g, 14.6 gf at a load of 20 g, and 34.1 gf at a load of 50 g.

  As shown in the graph of FIG. 13, the friction force in the dry state was lower for the three-wave insertion nozzle 12 than for the flat insertion nozzle 1012 at any load. On the other hand, as shown in the graph of FIG. 14, the frictional force in the wet state did not show much difference. Further, the friction force of the three-wave insertion nozzle 12 in the dry state was slightly better than the friction force of the flat insertion nozzle 1012 in the wet state.

  As described above, in the general flat type insertion nozzle 1012, in order to smoothly insert it into the body, it has been recommended to wet the tip with an enema liquid or petrolatum before use. It was revealed that the three-wave type insertion nozzle 12 can be smoothly inserted into the body even in a dry state.

(Modification)
The enema container 1 of the present embodiment is provided with the three-wave type insertion nozzle 12, but from the first experiment, even the six-wave type insertion nozzle 12A has a frictional force in the dry state as compared with the flat type. Proven to reduce. Therefore, the enema container 1 may include a 6-wave type insertion nozzle 12 </ b> A instead of the 3-wave type insertion nozzle 12.

  Alternatively, at least one annular recess 43 is formed in the insertion shaft portion 32 of the insertion nozzle 12, and the axial length (L1) from the nozzle tip to the rear end of the first basic diameter portion 42 is 10 mm or less. If there is, the shape of the insertion nozzle 12 is not limited to the shape described above.

  However, the difference between the outer diameter φa of the basic diameter portion 42 and the outer diameter φb of the annular recess 43 is preferably 1 mm or less. This is because the diameter of the filling core described above is approximately 2 mm, so that it is desired to secure about 3 mm as the inner diameter of the insertion nozzle 12. Even when the outer diameter φa of the basic diameter portion 42 is larger than 6 mm, the difference between the outer diameter φa of the basic diameter portion 42 and the outer diameter φb of the annular recess 43 is preferably 1 mm or less.

  Moreover, as for the axial direction length (L12) of each annular recessed part 43, it is desirable that all are 10 mm or less. The axial length (L13) of the second and subsequent basic diameter portions 42 is preferably 3 mm or less. The axial length (L13) of the second and subsequent basic diameter portions 42 may be 10 mm or less.

  Moreover, the axial length of each annular recess 43 may be different. Similarly, the axial lengths of the second and subsequent basic diameter portions 42 may also be different.

  Further, the annular recess 43 is disposed at a right angle to the axis 13, but may be disposed slightly inclined with respect to the axis 13. In this case, the plurality of annular recesses 43 may be spirally connected.

  Further, the insertion nozzle 12 may not include the holding recess 33 described above. In this case, there is no lower end inclined portion 44 positioned at the lower end of the insertion shaft portion 32, and for example, a fourth basic diameter portion 42 positioned on the rear end side may be connected to the neck portion 22 of the container body 11. In this case, the axial length of the basic diameter portion 42 located on the rear end side may be longer than the length of the first basic diameter portion 42 located on the front end side.

  In the present embodiment, the enema container 1 including the insertion nozzle 12 has been described. However, the insertion nozzle 12 may be used by being connected to an independent container body 11 or a dedicated instrument such as a syringe. That is, only the insertion nozzle 12 may be distributed.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  DESCRIPTION OF SYMBOLS 1 Enema container, 11 Container main body, 12 (3 wave type) insertion nozzle, 12A 6 wave type insertion nozzle, 13 axis, 21 Storage part, 22 Neck part, 31 Spout, 32, 32A, 32B Insertion shaft part, 33 For holding Concave part, 41 tip part, 42 basic diameter part, 43 annular concave part, 44 lower end inclined part, 51 valley bottom part, 52 inclined part, 61, 62 boundary part, 80 sample, 91 foam rubber, 92 arm part, 93 fixing jig, 1012 Flat type insertion nozzle.

Claims (7)

A container body for storing enema fluid therein;
An insertion nozzle connected to the container body and having a dry surface ;
A cap that covers the distal end side of the insertion nozzle ,
The insertion nozzle is provided at a distal end portion, and is adjacent to the basic diameter portion, a plurality of basic diameter portions including a spout for ejecting the enema liquid, a distal-end-side basic diameter portion to which the cap is locked, and And including an annular recess recessed inward from the basic diameter portion,
From the distal end of the insertion nozzle, the axial length to the rear end of the distal-side base diameter is state, and are less 10 mm,
An enema container in which a difference between an outer diameter of the basic diameter portion and an outer diameter of the annular recess is 0.2 mm or more and 0.4 mm or less .   The enema container according to claim 1, wherein the basic diameter portion and the annular recess of the insertion nozzle are alternately positioned along the axial direction. The axial length of each basic diameter portion is 10 mm or less,
The enema container according to claim 2, wherein an axial length of each annular recess is 10 mm or less. The enema container according to any one of claims 1 to 3 , wherein a boundary portion between the basic diameter portion and the annular recess is formed in an R shape. The enema container according to any one of claims 1 to 4 , wherein an axial length of the second and subsequent basic diameter portions as viewed from the distal end portion of the insertion nozzle is 3 mm or less. The enema container according to claim 2 , wherein the number of the annular recesses is three. An enema nozzle that is inserted into the body and has a dry surface ,
A spout provided at the tip for ejecting enema fluid;
A plurality of basic diameter portions including a tip-side basic diameter portion to which the cap is locked ;
An annular recess located adjacent to the basic diameter portion and recessed inward from the basic diameter portion;
From the tip, the axial length to the rear end of the distal-side base diameter is state, and are less 10 mm,
The insertion nozzle, wherein a difference between an outer diameter of the basic diameter portion and an outer diameter of the annular recess is 0.2 mm or more and 0.4 mm or less .

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