JP2014004309A - Intracorporeal liquid inserting device including separable sealing member - Google Patents

Intracorporeal liquid inserting device including separable sealing member Download PDF

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Publication number
JP2014004309A
JP2014004309A JP2012166689A JP2012166689A JP2014004309A JP 2014004309 A JP2014004309 A JP 2014004309A JP 2012166689 A JP2012166689 A JP 2012166689A JP 2012166689 A JP2012166689 A JP 2012166689A JP 2014004309 A JP2014004309 A JP 2014004309A
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Prior art keywords
piston
protrusion
sealing member
formed
insertion device
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JP2012166689A
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JP5539459B2 (en
Inventor
Fan Bun Ji
ジ−ファン,パン
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Wet Trust Korea Co Ltd
株式会社ウェットトラストコリア
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Priority to KR10-2012-0067292 priority
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Publication of JP2014004309A publication Critical patent/JP2014004309A/en
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Publication of JP5539459B2 publication Critical patent/JP5539459B2/en
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Abstract

PROBLEM TO BE SOLVED: To provide an intracorporeal liquid inserting device which cannot be reused.SOLUTION: An intracorporeal liquid inserting device including a separable sealing member includes: a shank part where a storing space capable of storing a liquid in the interior and a first projection exposed to the storing space are formed, a jetting part for injecting the liquid stored in the storage space is formed at the forward end thereof, and the rear end thereof is opened; a piston inserted in the storage space to move forward and backward through the opened rear end of the shank part, and injecting the liquid stored in the storage space when moving forward; and a sealing member which is hollow and has elasticity, that is provided at the front end of the piston to prevent the liquid stored in the storage space from leaking to the backside of the shank part, and moves in front of the first projection when the piston moves forward to be separated from the piston by the first projection when the piston moves backward again.

Description

  The present invention relates to an intracorporeal liquid insertion apparatus for administering a liquid into a human body, and more particularly to an intracorporeal liquid insertion apparatus provided with a sealing member that can be detached from a piston.

  Recently, various liquids are often injected into the human body for various purposes. For example, a wash solution for washing the female genitals is administered into the genitals, a contraceptive solution for contraception, a drug solution for treatment of hemorrhoids, sexual illness, etc., or a lubricant solution during sexual intercourse, etc. , Its usage is very diverse.

  In use, the inside of the human genitals and anus is the part where the mucous membrane is exposed and is very sensitive to external stimuli, so that the mucosa is easily damaged or contaminated. Therefore, in order to administer various liquids as described above, it is necessary to pay close attention.

  Conventionally, in order to improve the inconvenience of directly administering a liquid as described above, an apparatus capable of administering the liquid into the human body has been devised. Such liquid dosing devices are usually made disposable due to hygiene problems and difficulty in washing, and are therefore sold with the liquid contained therein.

  However, even though some users are disposable, the liquid dispensing device may be washed and reused. However, in this case, the risk of disease and bacterial infection is the highest. Therefore, such a liquid dispensing device must be designed so that it cannot be reused.

  The present invention has been made to solve the above-described conventional problems, and an object thereof is to provide an intracorporeal fluid insertion device that cannot be reused. The problems of the present invention are not limited to those described above, and other problems not mentioned will be apparent to those skilled in the art from the following description.

  In order to achieve the above object, an intracorporeal liquid insertion device provided with a separating sealing member according to the present invention has an accommodating space capable of accommodating a liquid and a first protrusion protruding into the accommodating space formed at the front end. An ejection portion for ejecting the liquid contained in the accommodation space is formed, and a rear end is inserted into the accommodation space so as to be movable in the front-rear direction from the opening of the trunk portion and the opening of the trunk portion, and moves forward. Sometimes the piston for injecting the liquid stored in the storage space and the hollow and elastic, the liquid which is provided at the front end of the piston and stored in the storage space is behind the trunk A sealing portion that prevents leakage, moves forward from the first protrusion when the piston moves forward, and separates from the piston by the first protrusion when the piston moves backward again. And, including the.

  The sealing member is formed in a ring shape.

  The first protrusion is formed so as to correspond to a position where the liquid accommodated in the accommodation space is in contact with the sealing member.

  In addition, a protrusion that is inserted into the sealing member is formed at the front end of the piston.

  Moreover, the said protrusion part is formed with the 1st member extended in an up-down direction, and the 2nd member extended in the left-right direction from the center part of the said 1st member.

  Further, both ends of the first member are in contact with the sealing member, and the second member is formed shorter than the first member, and both ends are separated from the sealing member.

  In addition, an extension portion having a cross-sectional area larger than the cross-sectional area of the protrusion is provided at the front end of the protrusion.

  The piston is provided with a pressing portion that contacts the rear surface of the sealing member and moves the sealing member by pushing the sealing member forward when the piston moves forward.

  In addition, a second protrusion is formed in the body portion, which is located rearward of the first protrusion, and a third protrusion that engages with the second protrusion when the piston moves rearward is formed in the piston. can do.

  Further, a second protrusion positioned further rearward than the first protrusion is formed in the body portion, and the piston moves forward from the second protrusion when the piston moves forward, and the first protrusion protrudes from the second protrusion. A fourth protrusion that engages with the two protrusions is formed.

  Further, at least a part of the entire region of the accommodation space is formed to have a cross-sectional area smaller than an area of a transverse cross section of the piston.

  Further, the rear end portion of the piston is inserted into the opening of the rear end portion of the trunk portion when the forward movement is maximum.

  The rear end portion of the piston is formed in a shape corresponding to the shape inside the opening of the rear end portion of the body portion.

  Further, the ejection part is provided with a stopper for preventing the liquid accommodated in the accommodation space from leaking.

  The intracorporeal fluid insertion device provided with the releasing sealing member of the present invention for solving the above-described problems has the following effects.

  First, since the sealing member is detached from the piston during use, it cannot be reused and is hygienic.

  Second, the sealing member can be easily detached from the piston due to its shape and structure while sealing the housing space so that liquid does not leak.

  Third, since the structure is simple and the number of members required for the sealing member is small, the manufacturing cost can be reduced, and the time required for the manufacturing can also be shortened.

  The effects of the present invention are not limited to those described above, and further effects not mentioned will be apparent to those skilled in the art from the claims.

1 is a perspective view showing an overall form of an intracorporeal fluid insertion device according to a first embodiment of the present invention. It is a perspective view which shows the decomposition | disassembly structure of the intracorporeal fluid insertion apparatus by 1st Embodiment of this invention. It is sectional drawing which shows the internal structure of the intracorporeal fluid insertion apparatus by 1st Embodiment of this invention. It is sectional drawing which shows a mode that the piston of the intracorporeal liquid insertion apparatus by 1st Embodiment of this invention is moved ahead, and a liquid is ejected. It is sectional drawing which shows a mode that a sealing member applies to the 1st protrusion of a trunk | drum by moving the piston of the intracorporeal fluid insertion apparatus by 1st Embodiment of this invention ahead. It is sectional drawing which shows a mode that a sealing member detaches | leaves from a piston, when moving the piston of the intracorporeal fluid insertion apparatus by 1st Embodiment of this invention back backwards. It is sectional drawing which shows the internal structure of the intracorporeal fluid insertion apparatus by 2nd Embodiment of this invention. It is sectional drawing which shows the internal structure of the intracorporeal fluid insertion apparatus by 3rd Embodiment of this invention. FIG. 10 is a perspective view showing a state where a sealing member is fixed to a piston in an intracorporeal fluid insertion device according to a fourth embodiment of the present invention. FIG. 10 is a perspective view showing a state where a sealing member is fixed to a piston in an intracorporeal fluid insertion device according to a fifth embodiment of the present invention. It is sectional drawing which shows the internal structure of the intracorporeal fluid insertion apparatus by 6th Embodiment of this invention. It is sectional drawing which shows a mode that a sealing member detaches | leaves from a piston, when moving the piston of the intracorporeal fluid insertion apparatus by 6th Embodiment of this invention back backwards.

  Hereinafter, preferred embodiments of the present invention capable of specifically realizing the above object will be described in detail with reference to the accompanying drawings. In the description of the embodiments, the same or corresponding parts are denoted by the same names and reference numerals, and the description thereof is omitted.

  FIG. 1 shows an overall configuration of the intracorporeal fluid insertion device 100 according to the first embodiment of the present invention, and FIG. 2 shows an exploded structure of the intracorporeal fluid insertion device 100 according to the first embodiment of the present invention.

  As shown in FIGS. 1 and 2, the intracorporeal fluid insertion device 100 according to the first embodiment of the present invention includes a body portion 110, a piston 120, and a sealing member 130 as a whole.

  The torso part 110 is formed so as to be insertable into a human body, and an accommodating space capable of accommodating a liquid is formed therein. Further, a jet part 112 capable of injecting the liquid contained in the accommodation space is formed at the front end of the trunk part 110, and the rear end 113 of the trunk part 110 is opened.

  In the case of this embodiment, the trunk | drum 110 is long in the front-back direction, is formed in the curved surface as a whole, and the cross section is formed circularly. Therefore, the user does not feel pain when inserting into the human body. Further, the rear end 113 of the body portion 110 is formed to have a taper so that the cross-sectional area gradually increases, and the piston 120 can be easily inserted.

  Further, in this embodiment, the ejecting portion 112 formed at the front end of the trunk portion 110 has a cover that prevents liquid stored before the use of the intracorporeal fluid insertion device 100 from leaking through the ejecting portion 112. 140 is provided.

  The piston 120 is inserted into the housing space so as to be movable in the front-rear direction from the opening of the rear end portion 113 of the body portion 110. That is, when the piston 120 is moved forward in a state of being inserted into the accommodation space in the body portion 110, the liquid contained in the accommodation space is pushed and ejected from the ejection portion 120.

  In the case of this embodiment, a protruding portion 126 that is inserted into a sealing member 130 made of an O-ring is formed at the front end portion of the piston 120. The protrusion 126 is provided so as to be in pressure contact with the inner peripheral surface of the sealing member 130 and fixes the sealing member 130.

  Further, the piston 120 is provided with a pressing portion 128 formed so that the rear surface of the sealing member 130 is in contact with the piston 120, thereby pushing the sealing member 130 forward and moving it according to the forward movement of the piston 120. Can do.

  Further, in this embodiment, the rear end portion 123 of the piston 120 has a shape corresponding to the inner shape of the rear end 113 portion of the body portion 110. That is, the rear end portion 123 of the piston 120 is also formed so as to have a gradually increasing cross-sectional area, whereby the user can easily push the piston 120.

  The sealing member 130 is hollow and elastic, and is held at the front end of the piston 120. In addition, it is possible to prevent the liquid stored in the storage space from leaking to the rear of the body 110 when inserted into the storage space inside the body 110. As a material of the sealing member 130, various materials having elasticity such as rubber and synthetic resin can be used. A commercially available O-ring can also be used as it is.

  In the case of this embodiment, the sealing member 130 is formed in a ring shape, and as described above, the rear surface is in contact with the pressing portion 128 of the piston 120 and the protruding portion 126 is held in a state of being inserted into the ring. .

  FIG. 3 shows an internal structure of the intracorporeal fluid insertion device 100 according to the first embodiment of the present invention. As shown in FIG. 3, liquid is accommodated in the accommodating space S in the trunk portion 110, and the sealing member 130 and the piston 120 are inserted.

  In this embodiment, since the plug body 140 is further provided, the plug body 140 and the sealing member 130 can prevent liquid from leaking before the user actually uses the body fluid insertion device 100.

  Further, a first protrusion 114 protruding into the accommodation space S is formed in front of the inside of the trunk portion 110. This is for detaching the sealing member 130 from the piston 120 in the future, which will be described later.

  Further, in this embodiment, a second protrusion 116 positioned further rearward than the first protrusion 114 is provided on the inner side of the body portion 110, and a third protrusion 127 corresponding to the second protrusion is provided on the outer peripheral surface of the piston 120. Is formed. In particular, in this embodiment, each of the first protrusion 114 and the second protrusion 116 protrudes along the inner periphery of the body 110, and the third protrusion 127 protrudes along the outer periphery of the piston 120. . However, the shapes of the first protrusion 114, the second protrusion 116, and the third protrusion 127 are not limited thereto, and can be formed in various forms such as discontinuous protrusions in the circumferential direction.

  The second protrusion 116 and the third protrusion 127 are formed in order to prevent the piston 120 from moving backward by a predetermined distance or more. That is, when liquid is stored in the storage space S, the piston 120 may be pushed backward, or the piston 120 may be pushed backward by an external force such as gravity or inertia. Therefore, the second protrusion 116 and the third protrusion 127 are formed.

  Specifically, the third protrusion 127 is formed so as to be engaged with the second protrusion 116 when the piston 120 moves rearward beyond a predetermined distance. There is no such thing as leaving.

  When a certain amount of liquid is stored in the storage space S, the second protrusion 116 can be positioned so as to be in contact with the rear surface of the third protrusion 127 in a state where the piston 120 is in contact with the liquid. That is, the intracorporeal fluid insertion device 100 can be supplied to the user in such a state.

  The structure of the intracorporeal fluid insertion device 100 according to the first embodiment of the present invention has been described above. Hereinafter, a process in which the sealing member 130 is detached when the intracorporeal fluid insertion device 100 is used will be described.

  FIG. 4 shows a state where the piston 120 of the intracorporeal fluid insertion device 100 according to the first embodiment of the present invention is moved forward to eject the liquid.

  As shown in FIG. 4, the user first removes the plug 140 provided in the ejection portion 112 of the trunk portion 110 and then moves the piston 120 by pressing it forward indicated by an arrow. Thereby, the sealing member 130 also moves forward, and the liquid stored in the storage space S is ejected to the outside through the ejection part 112.

  Next, FIG. 5 shows a state where the sealing member 130 is engaged with the first protrusion 114 of the trunk portion 110 by moving the piston 120 of the intracorporeal fluid insertion device 100 according to the first embodiment of the present invention forward. It is shown.

  As shown in FIG. 5, the sealing member 130 moves forward from the first protrusion 114 when the user moves the piston 120 forward to discharge all the liquid stored in the storage space. Accordingly, the first protrusion 114 is positioned between the sealing member 130 and the pressing portion 128.

  At this time, since the sealing member 130 has elasticity, the sealing member 130 is elastically deformed when coming into contact with the first protrusion 114 and can pass through the first protrusion 114 while being pressed by the first protrusion 114.

  In this embodiment, the sealing member 130 is engaged with the first protrusion 114 while the piston 120 is moved to the maximum. However, the position of the first protrusion 114 is not limited to this, and is positioned rearward of this. It can also be made.

  Next, FIG. 6 illustrates a state in which the sealing member 130 is detached from the piston 120 when the piston 120 of the intracorporeal fluid insertion device 100 according to the first embodiment of the present invention is moved backward again.

  As shown in FIG. 6, when the user pulls the piston 120 backward after using the intracorporeal fluid insertion device 100, the sealing member 130 is detached from the piston 120 by the first protrusion 114. Therefore, since the user cannot use the intracorporeal fluid insertion device 100 again, it is possible to prevent disadvantages due to reuse such as bacterial infection in advance.

  In particular, in this embodiment, the sealing member 130 is fixed only to the extent that the protruding portion 126 of the piston 120 is inserted into the hollow, and the rear surface is in contact with the pressing portion 128. Thereby, in the case of the sealing member 130, when it moves forward, it can be stably supported by the pressing portion 128, and when it moves rearward, it can be easily detached from the sealing member 130 from the protruding portion 126, so that it can be reused. Can be completely prevented.

  In this embodiment, since the sealing member 130 does not have a portion that blocks the front of the protruding portion 128 due to its shape, the amount of necessary material is small, the weight is light, the manufacturing cost can be reduced, and the manufacturing time can be shortened. can do.

  Further, as shown in the enlarged view of FIG. 6, since the sealing member 130 is formed in a circular shape with a cross section surrounding the protruding portion 126, when the protruding portion 126 is detached from the sealing member 130, the sealing member 130 is protruded from the protruding portion 126. Can rotate along the surface of Therefore, the sealing member 130 can be detached from the piston 120 more easily.

  The process of removing the sealing member 130 during use of the intracorporeal fluid insertion device 100 according to the first embodiment of the present invention has been described above. Hereinafter, other embodiments of the present invention will be described.

  FIG. 7 shows an internal structure of the intracorporeal fluid insertion device 200 according to the second embodiment of the present invention.

  As shown in FIG. 7, when compared with the first embodiment, the intracorporeal fluid insertion device 200 according to the second embodiment of the present invention has a first protrusion 214, a trunk portion 210 including an ejection portion 212, and a sealing member 230. Are the same, but the shape of the piston 220 is slightly different.

  Specifically, the piston 220 of the intracorporeal fluid insertion device 200 according to this embodiment has a fourth protrusion 229 in addition to the third protrusion 227, and when the rear end 223 of the piston 220 moves forward to the maximum. The body portion 210 is completely inserted into the opened rear end portion 213.

  The fourth protrusion 229 is located behind the third protrusion 227, and the second protrusion formed on the body 210 when the piston 220 moves forward to completely discharge the liquid stored in the storage space. Move forward from 216. Accordingly, since the fourth protrusion 229 is engaged with the second protrusion 216 thereafter, the user can be prevented from moving the piston 220 backward again.

  In particular, in this embodiment, the rear end portion 223 of the piston 220 has a shape corresponding to the inner shape of the rear end portion 213 of the trunk portion 210 and is completely inserted, so that the user picks the piston 220. The possibility of reuse can be further reduced.

  FIG. 8 shows an internal structure of the intracorporeal fluid insertion device 300 according to the third embodiment of the present invention.

  In the case of the intracorporeal liquid insertion device 300 according to the third embodiment of the present invention shown in FIG. 8, the ejection portion 312 and the first protrusion 314 are formed in the body portion 310, and when the piston 320 moves forward, the piston The rear end portion 323 of 320 is completely inserted into the rear end portion 313 of the trunk portion 310 as in the second embodiment. However, the second protrusion, the third protrusion, and the fourth protrusion are not formed on the body 310 and the piston 320, respectively.

  The body 310 of the intracorporeal fluid insertion device 300 according to this embodiment is formed such that at least a part of the entire area of the internal storage space has a cross-sectional area smaller than the area of the cross section of the piston 320. Specifically, referring to FIG. 8, it can be seen that a protruding region 316 is formed on the inner side behind the trunk portion 310, and the area of the cross section of the accommodation space is reduced.

  Thereby, the piston 320 is pressed by the protruding region 316, and the contact resistance when moving in the front-rear direction can be applied. That is, also in this case, since the piston 320 is difficult to move backward when the intracorporeal fluid insertion device 300 is used, the possibility of reuse can be reduced.

  FIG. 9 shows a state in which the sealing member 430 is fixed to the projecting portion 426 of the piston in the intracorporeal fluid insertion device according to the fourth embodiment of the present invention.

  As shown in FIG. 9, in the case of the intracorporeal fluid insertion device according to the fourth embodiment of the present invention, the protruding portion 426 of the piston is formed in a shape different from that of the above-described embodiment.

  Specifically, the protrusion 426 is formed of a first member 426a extending in the up-down direction and a second member 426b extending in the left-right direction from the center of the first member 426a. That is, the protruding portion 426 is formed in a cross shape in cross section in front of the pressing portion 428 as a whole. As a result, the contact area between the sealing member 430 and the protrusion 426 is greatly reduced, so that the sealing member 430 can be more easily detached.

  On the other hand, in this embodiment, the first member 426a extends in the up-down direction and the second member 426b extends in the left-right direction, but this does not mean that the up-down and left-right directions are only one direction. That is, the piston can be rotated in the body portion, and the whole direction of the intracorporeal fluid insertion device can be changed, so that the vertical and horizontal directions change depending on the reference.

  FIG. 10 shows a state in which the sealing member 530 is fixed to the projecting portion 426 of the piston in the intracorporeal fluid insertion device according to the fifth embodiment of the present invention.

  As shown in FIG. 10, in the intracorporeal liquid insertion device according to the fifth embodiment of the present invention, the protrusion 526 is formed in a cross-shaped cross section in front of the pressing portion 528 like the intracorporeal fluid insertion device according to the fourth embodiment. However, the length of the second member 526b is shorter than that of the first member 526a, and both ends are separated from the inner peripheral surface of the sealing member 530.

  That is, in the case of this embodiment, the sealing member 530 can be more easily detached by reducing the contact area between the sealing member 530 and the protruding portion 526. Further, the length of the second member 526b is appropriately adjusted so that both ends of the second member 526b are maintained apart from the sealing member 530, but can be supported when the shape of the sealing member 530 changes. Can be.

  FIG. 11 shows the internal structure of the intracorporeal fluid insertion device 600 according to the sixth embodiment of the present invention, and FIG. 12 shows the piston 620 of the intracorporeal fluid insertion device 600 according to the sixth embodiment of the present invention moved rearward. In this case, the sealing member 630 is shown detached from the piston 620.

  In the case of the intracorporeal fluid insertion device 600 according to the sixth embodiment of the present invention shown in FIGS. 11 and 12, the ejection portion 612, the first protrusion 614 and the second protrusion 616 are formed on the body 610, and the piston 620. The pressing portion 628, the protruding portion 626, and the third protrusion 627 are formed in the same manner as in the first embodiment described above. However, the position of the first protrusion 614 is different from that of the first embodiment, and an extension portion 629 is formed at the front end of the protruding portion 626.

  Specifically, in this embodiment, the first protrusion 614 is formed to correspond to a position where the liquid accommodated in the accommodation space S and the sealing member 630 are in contact with each other. In other words, the first protrusion 614 is formed corresponding to the water surface when the entire amount of liquid is stored in the storage space S, and can serve to display the liquid storage amount during manufacturing.

  In addition, as shown in FIG. 12, when the piston 620 is pressed to inject liquid and then moved backward, the sealing member 630 engages with the first protrusion 614 and is detached from the piston 620.

  In this embodiment, an extended portion 629 having a cross-sectional area larger than the area of the cross section of the protruding portion 626 is provided at the front end of the protruding portion 626. Accordingly, since the sealing member 630 can be fixed to the front end of the piston 620, the sealing member 630 can be easily detached during the process of inserting the piston 620 into the body 610 during the manufacture of the in-body liquid insertion device 600. Can be prevented.

  As mentioned above, although this invention was demonstrated using preferable embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art to which the present invention pertains that various modifications can be made to the above-described embodiments, and such modified forms are also included in the technical scope of the present invention. It is apparent from the description of the scope of claims.

DESCRIPTION OF SYMBOLS 100 Body fluid insertion apparatus 110 trunk | drum 112 ejection part 113 rear end part 114 1st protrusion 116 2nd protrusion 120 piston 123 rear end part 126 protrusion part 127 3rd protrusion 128 pressing part 130 sealing member 140 plug body

Claims (14)

  1. A storage space in which a liquid can be stored and a first protrusion that protrudes into the storage space are formed, a jet part that ejects the liquid stored in the storage space is formed at the front end, and a barrel having a rear end opened And
    A piston that is inserted in the housing space so as to be movable in the front-rear direction from the opening of the body portion, and that ejects the liquid contained in the housing space when moving forward;
    It is hollow and has elasticity, and prevents liquid leaking to the rear of the body from being provided at the front end of the piston and moving to the front of the piston. A sealing member that moves forward from the first protrusion and is detached from the piston by the first protrusion when the piston is moved rearward;
    An intracorporeal fluid insertion device.
  2.   The intracorporeal fluid insertion device according to claim 1, wherein the sealing member is formed in a ring shape.
  3.   2. The intracorporeal fluid insertion device according to claim 1, wherein the first protrusion is formed to correspond to a position where the liquid accommodated in the accommodation space contacts the sealing member.
  4.   The intracorporeal fluid insertion device according to claim 1, wherein a protrusion that is inserted into the sealing member is formed at a front end of the piston.
  5.   5. The intracorporeal fluid insertion device according to claim 4, wherein the protrusion includes a first member extending in a vertical direction and a second member extending in a left-right direction from a central portion of the first member.
  6.   6. The intracorporeal fluid insertion device according to claim 5, wherein both ends of the first member are in contact with the sealing member, and the second member is formed shorter than the first member, and both ends are separated from the sealing member.
  7.   The intracorporeal fluid insertion device according to claim 4, wherein an extension portion having a cross-sectional area larger than a cross-sectional area of the protrusion is provided at a front end of the protrusion.
  8.   2. The intracorporeal fluid insertion device according to claim 1, wherein the piston is provided with a pressing portion that is in contact with a rear surface of the sealing member and moves the sealing member forward when the piston moves forward.
  9. In the trunk portion, a second protrusion is formed, which is located behind the first protrusion.
    The intracorporeal fluid insertion device according to claim 1, wherein the piston is formed with a third protrusion that engages with the second protrusion when the piston moves backward.
  10. In the trunk portion, a second protrusion is formed, which is located behind the first protrusion.
    The intracorporeal fluid insertion device according to claim 1, wherein the piston is formed with a fourth protrusion that moves forward from the second protrusion and engages with the second protrusion when the piston moves forward.
  11.   2. The intracorporeal fluid insertion device according to claim 1, wherein at least a part of the entire area of the accommodation space is formed to have a cross-sectional area smaller than a cross-sectional area of the piston.
  12.   2. The intracorporeal fluid insertion device according to claim 1, wherein a rear end portion of the piston is inserted into an opening of a rear end portion of the trunk portion at the time of maximum forward movement.
  13.   The intracorporeal fluid insertion device according to claim 12, wherein a rear end portion of the piston is formed in a shape corresponding to a shape inside a rear end portion of the trunk portion.
  14.   The intracorporeal liquid insertion device according to claim 1, wherein the ejection portion is provided with a plug body that prevents the liquid accommodated in the accommodation space from leaking.
JP2012166689A 2012-06-22 2012-07-27 Intracorporeal fluid insertion device provided with a sealing member to be detached Active JP5539459B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020120067292A KR101391375B1 (en) 2012-06-22 2012-06-22 Liquid Injection Apparatus in Body Having Detachable Sealing Member
KR10-2012-0067292 2012-06-22

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JP2014004309A true JP2014004309A (en) 2014-01-16
JP5539459B2 JP5539459B2 (en) 2014-07-02

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KR (1) KR101391375B1 (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
JP2015171514A (en) * 2014-03-12 2015-10-01 株式会社吉野工業所 Metered syringe-type ejector

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Publication number Priority date Publication date Assignee Title
KR200481416Y1 (en) * 2016-06-30 2016-09-29 (주)천하홀딩스 Apparatus for injecting liquid in body
KR200484768Y1 (en) * 2016-07-26 2017-10-23 주식회사 씨에이치바이오 Apparatus for injecting liquid in body having piston of multi-stage structure
KR101956671B1 (en) * 2017-07-19 2019-03-12 주식회사 씨에이치바이오 Apparatus for inserting liquid in body having structure in which pushing or retraction of the plunger is restricted
KR20190043332A (en) 2017-10-18 2019-04-26 주식회사 케이와이코스메틱 Apparatus for injecting liquid in body

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