FR2639223A1 - MEDICAL LIQUID CONTAINER - Google Patents

Abstract

A medical liquid container A comprising a container body 10 integrally formed of a flexible synthetic resin material, a nozzle 12, and a sealing portion 30 for closing or blocking the nozzle 12 and formed integrally with the container body 10 through a thin wall formed on a lower region of the sealing portion 30, characterized in that it comprises a cap 20 having an engagement hole which is designed so as to well adapt to the sealing portion 30 of the container body 10.

Description

Chemicals such as medical products

  caux are preferably contained in an airtight container

  tick so that these substances are not deteriorated or degraded in their medical effect and their ingredients due to contamination or chemical changes

  due to oxidation etc which occur when the con-

  the container is in contact with air. This is by-

  particularly true for a medical fluid of the fluid type

  or ointment type, and to prevent leakage or filtration

  tion of this medical liquid, a tight seal is

highly required.

  In a standard container for storing

  sealing a medical liquid, the cap and the container

  are separated at each use. This type of reci-

  pient is of complicated structure and reaches a re-

  laterally large. Also, this type of container is not suitable for a small medical liquid container intended for

  contain single use content.

  Also, with regard to a small container for

  hold a disposable medical liquid, various suggestions

  tions were made for a container of hermetic medical liquid comprising a container body, and a closure portion for blocking the orifice of the nozzle of the body

  container and formed integrally with the receptacle body

  pient, the shutter portion being, in use, 8tée

  manually to open the container.

  Most standard medical fluid containers

  sics are of type o when the closure portion must be removed from the container body, a thin wall disposed between the container body and the closure portion is

  directly broken by the force of the fingers. The force required

  for such a break depends on the thickness of the thin wall. According to conventional medical liquid containers, if

  the thickness of the thin wall is made thinner, the

  what is necessary for such a rupture becomes less great

  and therefore the shutter portion can be small.

  you. On the other hand, however, it is feared that the fine

  wall is accidentally ruptured and the liquid

cal escapes.

  Conversely, if the thin wall is made thicker,

  the force required for such a rupture becomes greater

  aunt. Consequently, unless the shutter portion is excessively large, difficulty in opening does not

can be avoided.

  In addition, when the container is to be molded, an ori-

  The mold is located at the top of the shutter portion and the synthetic resin material is loaded into the mold dies from this port to form a container body. At this moment,

  the area near the upper end of the gate

  shutter near the orifice presents a phenomenon

  in that the molecular orientation of the synthetic resin

  tick loaded in molding dies is not ordered

  born. Therefore, when the shutter portion is

  removed once the container body is finished, the

  The shutter is accidentally broken halfway through the removal due to its fragile structure. It

  As a result, the container body cannot be opened.

  The present invention provides a small medical liquid container comprising a closure portion which is

  particularly in one piece with the recess body

  pient and adapted to block a nozzle orifice of the container body. The present invention relates in particular

  a container of disposable medical liquid in which the

  the nozzle body of the container body is opened by turning the

shutter portion.

  The construction of the present invention comprises a container body molded integrally from a flexible synthetic resin material, a closure portion for

  block a nozzle hole in the container body, and a ca-

  puchon, the closure portion being formed in one piece with the container body by means of a thin wall formed on a lower zone of the closure portion.

  On the other hand, the cap has a hole for engaging-

  which can adapt well to the shutter portion.

  A first object of the present invention is to obtain

  a small container of hermetic disposable medical liquid

for single use only.

  A second object of the present invention is to provide

  nir a container of medical liquid in which even if the thickness of the thin wall mutually connecting the nozzle orifice and the closure portion of the container body

  is as required large enough to insulate by

  safely disposes of medical fluid, the body of

  pient can be opened very easily by breaking the thin wall using a separately supplied cap which is

  engaged with the shutter portion.

  These objects can be reached by the container

  medical liquid of the present invention. The modes of

  concrete implementation will be described with reference to the

  appended and by the detailed description which follows.

  It should be noted that variations and modifications

  carried out by the spirit of the present invention are included

its in the appended claims

  Figure 1 is a front view illustrating whole-

  ment, partially in section, an embodiment of the

  medical liquid container according to the present invention; Figures 2 (a) and 2 (b) are sectional views of the enlarged portion of a large portion of the medical liquid container according to the present invention; Figure 3 is an enlarged vertical sectional view of a large portion of another embodiment; Figure 4 is an enlarged perspective view of a large portion of yet another embodiment; Figure 5 is an enlarged vertical sectional view of a large portion of yet another embodiment; and Figure 6 is an enlarged plan view

in Figure 5.

  The embodiments of the present invention will

  be described below with reference to the accompanying drawings.

  The medical container A, as shown in FIG. 1, comprises a container body 10, a cap 20 and a closure portion 30. This closure portion 30 is formed integrally with the container body 10 to a nozzle orifice 13 via a thin wall 33

(see Figure 2 (a)).

  The container body 10 is molded in one piece from a flexible synthetic resin material such as

  example, low density polyethylene. The body of re-

  container 10 includes a storage portion 11 for container

  supply the medical liquid, and a portion of nozzle 12 in conti-

  bare from the top of the storage portion 11. The nozzle portion 12 has a greatly reduced diameter and is reduced to

  its upper end. A lower portion of the por-

  storage 11 is heat sealed, for example, by

  ultrasonic welding once filled with medical liquid.

  The wall thickness of the nozzle portion 12 is

  large compared to the wall thickness of the door

  storage 11 so that the nozzle portion 12 is not

not easily distorted.

  As shown in Figure 2 (a), the portion of bu-

  12 has a nozzle orifice 13 formed at its upper end so as to be flared in the direction of the jet of medical liquid. The nozzle orifice 13 is blocked by the

  shutter portion 30 and a thin wall 33 at the area

  of the shutter portion 30. More particular-

  ment, the shutter portion 30 is a cylindrical shutter body having a rounded configuration on its upper end portion and provided with a flare 32 formed in the lower region of the shutter portion 30 so as to surround the outer peripheral portion of the

  shutter portion 30 and to extend in the direction of the diameter

  outer meter while decreasing in thickness in the direction of the outer diameter. The shutter portion 30 is continuously from a lower portion of the nozzle orifice 13 via the thin wall 33 which is formed of

  cylindrical along the lower edge of the flare-

  ment 32, and thus the shutter portion 30 is one

  holding with the container body 10.

  As shown in Figure 2 (b), the cap 20 has a cap configuration with knurling 21 so that it can be adjusted on the upper end of

  the nozzle portion 12 of the container body 10.

  This cap 20 has a thick-walled portion 22 formed at its upper end. The wall portion

  thick 22 has an engagement hole 23.

  The engagement hole 23 is designed to adapt well to the sealing portion 30 of the nozzle portion 12 of the container body 10, and when the cap 20 is mounted on the nozzle portion 12, the portion of shutter 30 is

  engaged with the engagement hole 23 and a portion of ex-

  upper end of the closure portion 30 enters the engagement hole 23 and projects upwards from the cap 20 (see the double-dashed line in the

  Figure 2 (b)). The outer peripheral portion of the insertion hole

  gagement 23 is notched to form a plurality of pro-

  engagement junctions 23a which protrude in the direction ra-

  dial (thus, the hollow portions of the notched part pre-

  generally feel a V-shaped cross-section).

  In addition, as shown in Figure 1, the capu-

  chon 20 is formed integrally with the shutter portion

  ration 30 by crushing the upper end portion of the closure portion 30 in order to deform the latter at the

  heat once the cap 20 is mounted on the door

  tion of nozzle 12 of container body 10. At this instant, the upper end portion of the closure portion is crushed so as to fill the spaces between the

  adjacent engagement projections 23a and formed complete-

  in one piece with the cap 20.

  In this way, since the shutter portion

  tion 30 blocking the nozzle orifice 13 is in one piece with the cap 20, breaking the thin wall 33 so as to apply a force while turning the cap 20, the closure portion 30 can be very easily 8tée by a small amount of force. At this time, since the cap 20 and the closure portion 30 are formed

  in one piece through the projections of

  23a, it is not to be feared that the cap 20 alone will be turned when empty. Also, the shutter portion 30 can be easily removed by simply applying force to the cap 20, for example, a force to pull the cap

to the top.

  Since the engagement projections 23a are adapted so that the closure portion 30 and the cap 20

  are firmly united to each other, their configu-

  ration and their number can be established as desired.

  In another embodiment, a cap 20 ′ can be in the form of a simple plate as shown in FIG. 3. In this case, the external configuration of a cap 20 ′ can have all the desired shapes including circular and rectangular. However, part of the cap 20 'must project from the outer periphery of the nozzle portion 12. The cap 20' is fixed so as to block the nozzle orifice 13 by thermally deforming the closure portion 30 by

  crushing of the upper end portion of the door

  shutter 30 once the shutter portion

  is inserted into the engagement hole 23. Thanks to this

  puff 20 ', it can be avoided that a contaminated substance is fixed to the nozzle orifice 13. In addition, by applying

  a force on the cap 20 'so as to raise the

  tie in projection from the outer periphery of the nozzle portion 12 (in the direction indicated by the arrow K in FIG. 3), the shutter portion 30 can be removed

with a little force.

  As shown in Figure 4, a portion of obtu-

  ration 30 'may have an approximately square configuration in cross section and an engagement hole 23' of the cap 20 'may have a configuration which may well

  adapt to the shutter portion 30 '. When the capu-

  chon 20 'is turned, the thin wall 33 is twisted off so that the shutter portion 30' can be

  8t of the engagement hole 23 'of the cap 20'.

  The upper end portion of the obstruction portion

  30 minutes may or may not be overwritten. If the portion of ex-

  the upper end of the shutter portion 30 'is crushed, the shutter portion 30' can be removed in a

  direction without any rotation as in the case of the

Figure 3.

  As shown in Figure 5, a portion of obtur-

  30 "ration may have an intermediate portion which

  has a roughly hexagonal configuration, and the

  puchon 20 may include an engagement hole 23 "which can adapt well to the shutter portion 30". In this case, since the shutter portion 30 "and the engagement hole 23" contact each other at six points,

  greater torsional force can be transmitted. Also

  if, in this case, if the closure portion 30 "is formed by a concave surface 30" a and the engagement hole 23 "is

  formed of a convex surface 23 "b (figure 6), the state of con-

  tact between the 30 "shutter portion and the engagement hole

  ment 23 "approaches a state of linear contact to a state of planar contact. Consequently, the capacity to transmit

  the torsional force can be further increased.

  The shutter portion and the engagement hole may

  may have any optical configuration other than those of the above embodiments provided

  that they are well suited to each other.

  Depending on the construction of a container of liquid

  cal of the present invention, the container body is integrally formed from a flexible synthetic resin material. In addition, the shutter portion is formed

  in one piece with the container body to block

  the nozzle opening. As a result, the medical liquid in the container can be completely isolated from atmospheric air. In addition, since the container body has an adequate amount of elastic deformation, if the nozzle orifice is opened by breaking the thin wall and

  Being the sealing portion of the nozzle orifice, the li-

  which can be extruded outside.

  Also, since a force can be applied to the

  obturation portion via the engaged cap

  with the closure portion, the container can be opened or

  green with a small amount of strength.

  In addition, in a container of medical liquid comprising

  both a shutter portion formed integrally with a cap by thermal deformation, even if a force is applied to the cap in the direction intended to 8ter the

  shutter portion, the connection between the shutter portion-

  tion and the cap is not removed.

  Also, in a container of medical liquid comprising

  a cap with a plurality of engagement projections-

  around the peripheral portion of the engagement hole

  the shutter portion can be completely solid.

  daire of the cap in a state where the thermally deformed closure portion is engaged with the engagement projections. As a result, opening can be done more easily by applying a twisting force to the

shutter portion.

  According to a medical liquid container of this

  invention, when the container is opened by removing the door

  the nozzle orifice, the thin wall can

  be broken by applying force to the shutter portion

  ration through the cap. As a result, an effect is so excellent that the container body can be easily opened with a small amount of force.

  without the thin wall being made sufficiently thick.

  In addition, by making the cap and container body

  separate parts, the container body can be molded without using a wedge mold. Consequently, there are no edges (unnecessary projections produced during molding) which are formed around the outer periphery of the nozzle portion. Thus, for example, it is particularly suitable for the application of a container of medical liquid of the type which is used by inserting the

  nozzle portion in the base portion or the like.

  In addition, the shutter portion is of large diameter

  compared to conventional products or the portion of

  turation, as shown in Figures 1 and 3, is

  heated to soften and crash. So it is pos-

  able to eliminate the structural fragility in the vicinity of the upper end of the closure portion during molding. Therefore, it is possible to avoid

  accidental rupture of the portion in the middle.

Claims (5)

  1. Medical liquid container (A) comprising a container body (10) formed integrally from a flexible synthetic resin material, a nozzle (12), and a closure portion (30) for closing or blocking the nozzle (12) and formed integrally with the container body (10) by means of a thin wall (33) formed on a lower zone of the closure portion (30), characterized in   that it comprises a cap (20) comprising a hole for   gagement (23) which is designed to adapt well to   the closure portion (30) of the container body (10).   2. Medical liquid container (A) according to the claim   tion 1, characterized in that said closure portion (30) and said cap (20) are formed integral with one of   the other by thermal deformation of said portion of obtu- ration (30).   3. Medical liquid container (A) according to the claims   1 and 2, characterized in that said engagement hole (23) of said cap (20) has an engagement portion   (23a) formed on its peripheral part.   4. Medical liquid container (A) according to the claims   1 and 2, characterized in that said cap (20) is   present in the form of a flat plate.   5. Medical liquid container (A) according to the claims   tions 2, 3 and 4, characterized in that said portion of ob-   turation (30) and said cap (20) are shaped   complementary for intimate contact.