JP2015065985A - Vial adapter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vial adapter which can fit vials of a plurality of sizes without interposing a separate member between the vial adapter and the vial and can be easily mounted on the vials of the plurality of sizes.SOLUTION: A vial adapter disclosed in the invention includes: an adapter body having a connecting part connected to a medical device and a first fitting peripheral wall fitted to a head part of a first vial; and a second fitting peripheral wall fitted to a head part of a second vial having a diameter dimension smaller than the head part of the first vial. The second fitting peripheral wall is mounted on the adapter body on a radially inner side of the first fitting peripheral wall in a manner to be slidable along an axial direction of the first fitting peripheral wall.

Description

  The present invention relates to a vial adapter to be attached to a vial, and more particularly, it is possible to adapt to a vial of a plurality of sizes without interposing a separate member between the vial and at the same time, the attachment operation to the vial is performed. It is to make it easier.

  In general, when a drug solution is collected from a vial, a bare metal injection needle is directly punctured and sucked into a rubber stopper (plug body) provided on the head of the vial. However, when a bare metal injection needle is directly punctured into the plug, a needle stick accident due to the injection needle may occur. Therefore, a vial adapter as described in, for example, Patent Document 1 is conventionally known as one that allows access to the internal space of a vial without using a bare injection needle.

  In the vial adapter described in Patent Document 1, when the vial is erected and the vial adapter is pressed against the vial head from above, the fitting peripheral wall provided around the adapter body of the vial adapter is formed on the vial head. While fitting, a hollow needle-like body which is surrounded by the fitting peripheral wall and protrudes downward from the adapter body penetrates the stopper of the vial head. When a medical device such as a syringe is connected to the connection portion provided in the adapter body with the vial adapter attached to the vial in this manner, the inside of the medical device communicates with the internal space of the vial, and from the internal space of the vial. It becomes possible to collect the chemical solution in the medical device.

Japanese Patent No. 4740146

  By the way, the vial adapter as described above is adapted to a vial of a specific size, but there are various sizes of vials. Therefore, the vial adapter described in Patent Document 1 uses a cap-like member that is separate from the vial adapter when mounted on another vial smaller than the vial that fits the fitting peripheral wall of the vial adapter. ing. Then, the other fitting peripheral wall formed on the cap-shaped member is fitted to the head of the other vial, and the fitting peripheral wall of the vial adapter is fitted to the cap-shaped member, whereby the vial adapter Can be attached to other vials.

  However, in this way, with conventional vial adapters adapted to multiple size vials, it is necessary to fit a cap-like member to the vial separately from the vial adapter when attaching to a small vial, and it is attached to the vial The work to make was troublesome. Further, since the cap-shaped member is a separate body, there is a risk of loss.

  The present invention has been developed to solve such a conventional problem, and can be adapted to a vial having a plurality of dimensions without interposing a separate member between the vial and a plurality of vials. It is an object of the present invention to provide a vial adapter that can be easily attached to a vial having a size of.

  The vial adapter of the present invention includes an adapter main body having a connection portion connected to a medical instrument, a first fitting peripheral wall that can be fitted to the head of the first vial, and the head of the first vial. A second fitting peripheral wall that can be fitted to the head of a second vial having a smaller diameter, and the second fitting peripheral wall is radially inward of the first fitting peripheral wall, The adapter main body is slidably mounted along the axial direction of the first fitting peripheral wall.

  Here, in the vial adapter according to the present invention, the adapter main body further includes a columnar body connected to the connection portion, and a flange that connects a lower end of the columnar body to an upper end of the first fitting peripheral wall. The second fitting peripheral wall has a plurality of peripheral walls arranged at intervals in the circumferential direction, and claw portions respectively provided at the lower ends of the plurality of peripheral walls, and the plurality of peripheral walls are It is preferable that each can slide along the axial direction of the first fitting peripheral wall through an opening formed in the flange.

  In the present specification and claims, the “up and down” direction refers to the up and down direction in a state where a vial adapter is attached to the vial with the vial upright. .

  In the vial adapter of the present invention, the columnar body has a cylindrical shape, and the second fitting peripheral wall further has an annular wall that slides on an outer peripheral surface of the columnar body, and is provided at a lower end of the annular wall. The upper ends of the plurality of peripheral walls of the second fitting peripheral wall are preferably provided continuously.

  Further, in the vial adapter according to the present invention, the second fitting peripheral wall rotates the second fitting peripheral wall in the circumferential direction in a connection region between the annular wall and the upper ends of the plurality of peripheral walls. It is preferable to have a notch into which the flange is inserted.

  In the vial adapter of the present invention, it is preferable that the annular wall of the second fitting peripheral wall has an operation piece that protrudes radially outward of the annular wall.

  Furthermore, it is preferable that the vial adapter of the present invention further includes an undercut for fitting the second fitting peripheral wall and the columnar body to each other between the second fitting peripheral wall and the columnar body. .

  According to the present invention, the first fitting peripheral wall is fitted to the head of the first vial by sliding the second fitting peripheral wall upward along the axial direction of the first fitting peripheral wall. If the medical instrument is connected to the connection portion of the adapter body with the vial adapter attached to the first vial in this way, the inside of the medical instrument can be communicated with the internal space of the first vial. . Further, according to the present invention, the second fitting peripheral wall is slid downward along the axial direction of the first fitting peripheral wall so that the second fitting peripheral wall is moved from the head of the first vial. Can be fitted to the head of the second vial having a smaller diameter, and when the medical device is connected to the connection portion of the adapter body with the vial adapter attached to the second vial in this manner, The interior of the medical device can be communicated with the interior space of the second vial.

  Therefore, according to the present invention, it is possible to adapt to a vial of a plurality of dimensions without interposing a separate member between the vial and to easily attach a vial of a plurality of dimensions. A vial adapter can be provided.

It is a perspective view which shows the vial adapter which concerns on one Embodiment of this invention in the state which slid the slide member upwards. It is a longitudinal cross-sectional view of the vial adapter of FIG. It is a perspective view of the adapter main body of the vial adapter of FIG. It is a perspective view of the slide member of the vial adapter of FIG. It is a longitudinal cross-sectional view which shows the state which mounted | wore the 1st vial with the vial adapter of FIG. It is a perspective view which shows the vial adapter of FIG. 1 in the state which slid the slide member below. FIG. 7 is a perspective view illustrating the vial adapter of FIG. 1 in a state in which the vial adapter is further rotated in the circumferential direction from the state illustrated in FIG. 6. It is a longitudinal cross-sectional view which shows the state which mounted | wore the 2nd vial with the vial adapter of FIG.

Hereinafter, a vial adapter according to an embodiment of the present invention will be described in detail with reference to the drawings.
As shown in FIGS. 1 to 2, the vial adapter 1 according to this embodiment includes an adapter main body 20 and a slide member (second fitting peripheral wall) 30 that can slide in the vertical direction with respect to the adapter main body 20. Become.

  As shown in FIG. 3, the adapter main body 20 includes a connection portion 21 and a first fitting peripheral wall 22. The adapter main body 20 includes a columnar body 23 that is connected to the connection portion 21, and a flange 24 that connects the lower end of the columnar body 23 to the upper end 22 a of the first fitting peripheral wall 22. Further, as shown in FIG. 2, the adapter main body 20 includes a needle-like body 25 that is connected to the bottom surface 23 a of the columnar body 23.

The connecting portion 21 is for connecting a luer connector (not shown) provided in a medical instrument such as a syringe, and when the vial adapter 1 is attached to the first vial 40 as shown in FIG. In other words, by connecting the medical instrument to the connection portion 21, the inside of the medical instrument can be communicated with the internal space M ₁ of the first vial 40 via the vial adapter 1. Further, when the vial adapter 1 is attached to the second vial 50 as shown in FIG. 8 to be described later, the medical instrument is connected to the connection portion 21 so that the inside of the second vial 50 is inside the medical instrument. It is possible to communicate with the space M ₂ through the vial adapter 1. In this example, the first vial 40 has a head diameter of 20 mm, and the second vial 50 has a head diameter of 13 mm.

  As shown in FIGS. 2 and 3, the connection portion 21 includes a cap 60, a housing 70, and an elastic valve body 80. The cap 60 is provided around the axis O of the first fitting peripheral wall 22, and an upper cylindrical wall 62 in which a double thread 61 for connection with a medical device (not shown) is formed at the upper end of the outer peripheral surface. Have. A lower cylindrical wall 63 having a diameter larger than that of the upper cylindrical wall 62 is connected to the lower end of the upper cylindrical wall 62.

  The lower cylindrical wall 63 is connected to the lower end of the inner peripheral surface 62a of the upper cylindrical wall 62, and is connected to the first inner peripheral surface 63a whose diameter is expanded from the inner peripheral surface 62a and the lower end of the inner peripheral surface 63a. And a second inner peripheral surface 63b whose diameter is expanded from the inner peripheral surface 63a.

  The upper end of the cylindrical body 71 of the housing 70 is fitted into the lower cylindrical wall 63 of the cap 60, and the upper end of the cylindrical body 71 and the lower cylindrical wall 63 are joined to each other by, for example, an adhesive. ing. The inner peripheral surface 71 a of the cylindrical body 71 has an inner diameter that is substantially the same as that of the first inner peripheral surface 63 a of the cap 60. The lower end of the cylindrical body 71 is connected to the upper surface of the disc-shaped bottom wall 72. On the upper surface of the bottom wall 72, an annular recess 72 a centering on the axis O is provided in a region on the inner peripheral side of the cylindrical body 71. On the inner peripheral side of the annular recess 72a, a housing through-hole 73 that passes through the bottom wall 72 and has a circular cross section centered on the axis O is formed.

  The lower end portion 81 a of the bellows-like wall 81 of the elastic valve body 80 is fitted into the annular recess 72 a of the housing 70. In this example, the lower end portion 81a of the bellows-like wall 81 and the annular recess 72a are joined with, for example, an adhesive. A cylindrical wall 82 is connected to the upper end of the bellows-like wall 81, and the upper end of the cylindrical wall 82 is closed by a top wall 84 in which a slit 83 is formed. The outer peripheral surface 82 a of the cylindrical wall 82 abuts on the inner peripheral surface 62 a of the upper cylindrical wall 62 of the cap 60 described above, and the upper surface of the top wall 84 is flush with the upper end surface of the upper cylindrical wall 62 of the cap 60. It has become.

  The bottom wall 72 of the housing 70 is fitted in a circular recess 23 b formed on the upper surface of the columnar body 23 having a shape complementary to the outer peripheral surface and the bottom surface of the bottom wall 72. The bottom wall 72 and the circular recess 23b are joined by, for example, an adhesive or heat welding. Alternatively, the housing 70 and the columnar body 23 can be integrally formed by, for example, injection molding of synthetic resin.

  The columnar body 23 has a cylindrical shape with the axis O as the center. An annular upper fitting groove 23 d (undercut) is provided in the upper region of the outer peripheral surface 23 c of the columnar body 23. Further, a lower fitting groove 23e (undercut) having the same shape as the upper fitting groove 23d is provided in the lower region of the outer peripheral surface 23c of the columnar body 23. Below the lower fitting groove 23e, a plurality of, in this example, two stepped portions 23f having a reduced diameter on the outer peripheral surface 23c of the columnar body 23 are formed at symmetrical positions around the axis O. These stepped portions Each connection region between the lower end of 23f and the bottom surface 23a of the columnar body 23 is provided with a protrusion 23g that protrudes to the outer peripheral side.

  The needle-like body 25 described above connected to the bottom surface 23a of the columnar body 23 is composed of a cylindrical body 25a centering on the axis O and a downward-facing cone 25b connected to the lower end of the cylindrical body 25a. Inside the upper portion of the cylindrical body 25a, a lower portion of a central extending path 26 having a circular cross section extending along the axis O with the axis O as the center is located. The central extending path 26 penetrates the columnar body 23, and the upper end of the central extending path 26 communicates with the lower end of the housing through hole 73 described above. A communication hole 25 c that opens to the outer peripheral surface of the cylindrical body 25 a is connected to the lower end of the central extension path 26.

  A flange 24 that connects the lower end of the columnar body 23 to the upper end 22 a of the first fitting peripheral wall 22 extends from the lower end of the columnar body 23 to the upper end 22 a of the first fitting peripheral wall 22 on the outer peripheral side. In the flange 24, a plurality of, in this example, two openings 24a are formed at positions symmetrical about the axis O. The inner peripheral side of these openings 24a is connected to the step portion 23f described above. Moreover, the edge part 24b of the outer peripheral side of these openings 24a is circular.

  In the present example, the upper end portions of the eight vertical slits 27 arranged at equal intervals around the axis O are positioned in the outer peripheral side region of the flange 24. Each of the vertical slits 27 extends in the vertical direction, and divides the first fitting peripheral wall 22 around the axis O at equal intervals. Each of the first fitting peripheral walls 22 divided in this way has an outer peripheral wall portion 22b connected to the outer peripheral edge of the flange 24, and an enlarged wall portion 22c connected to the lower end of the outer peripheral wall portion 22b and expanding in the downward direction. And have. Further, at the lower end of each outer peripheral wall portion 22a, there is formed a fitting claw portion 22d that protrudes toward the inner peripheral side and can be fitted to the head portion 41 of the first vial 40 shown in FIG. .

  As shown in FIG. 4 and FIG. 2, the slide member 30 is slidable along the axis O direction of the first fitting peripheral wall 22 on the adapter main body 20 on the radial inner side of the first fitting peripheral wall 22. It is attached to. The slide member 30 has an annular wall 31, and a plurality of operation pieces 32 symmetrically around the axis O are provided at the upper end of the outer peripheral surface 31 a of the annular wall 31 in this example. Projected to Each of the operation pieces 32 has a semicircular shape in a plan view, and an arrow-shaped mark 32 a indicating the rotation direction of the slide member 30 is provided on the upper surface.

  A plurality of lower ends of the annular wall 31 are slidable along the direction of the axis O of the first fitting peripheral wall 22 through the opening 24a of the flange 24 described above and are spaced apart from each other in the circumferential direction. In this example, the upper ends of the two peripheral walls 33 are continuously provided. The lower ends of these peripheral walls 33 are fitted to the heads 51 of the second vials 50 shown in FIG. 8, which have a smaller diameter than the heads 41 of the first vial 40 shown in FIG. A possible claw portion 34 projects toward the inner peripheral side.

  The flange 24 is inserted into the connection region between the annular wall 31 and the upper ends of the plurality of peripheral walls 33 by rotating the slide member 30 in the circumferential direction, that is, in the direction indicated by the arrow shape of the sign 32a in this example. A notch 35 is formed. The upper end edge of the inner peripheral surface of the annular wall 31 can be selectively fitted into both the upper fitting groove 23d (undercut) and the lower fitting groove 23e (undercut) of the columnar body 23 described above. A fitting protrusion 36 (undercut) is provided around.

  In addition, although it does not specifically limit as a raw material of each member which comprises the vial adapter 1 mentioned above, The cap 60, the housing 70, the columnar body 23, the flange 24, the needle-like body 25, the 1st fitting surrounding wall About 22 and the slide member 30, it is preferable to use a synthetic resin material. For the elastic valve body 80, it is preferable to use a rubber material or a thermoplastic elastomer.

  According to such a configuration, as shown in FIG. 2, when the slide member 30 is slid upward along the axis O and the fitting protrusions 36 are fitted into the upper fitting grooves 23 d of the columnar body 23, a plurality of pieces are obtained. The lower end of the peripheral wall 33 can be positioned above the bottom surface 23 a of the columnar body 23. Therefore, as shown in FIG. 5, the fitting claw portion 22 d formed on the first fitting peripheral wall 22 of the vial adapter 1 is fitted to the head 41 of the first vial 40 and the columnar body 23 is The vial adapter 1 is attached to the first vial 40 by pressing the needle-like body 25 projecting from the bottom surface 23 a against the stopper 42 provided on the head 41 of the first vial 40 and penetrating it. Can do.

In this state, when a luer connector or the like (not shown) provided on a medical instrument such as a syringe is connected to the connecting portion 21, the top wall 84 of the elastic valve body 80 is pressed downward by the medical instrument, and the bellows-shaped wall 81. Due to the compressive deformation in the vertical direction, the cylindrical wall 82 of the elastic valve body 80 moves downward. At that time, the cylindrical wall 82 of the elastic valve body 80 that has been in contact with the inner peripheral surface 62a of the upper cylindrical wall 62 of the cap 60 has a lower cylindrical wall 63 whose diameter is larger than that of the inner peripheral surface 62a. In order to move into the first inner peripheral surface 63 a, the cylindrical wall 82 is deformed to expand, and a slit 83 provided in the top wall 84 of the elastic valve body 80 is opened. As a result, the inside of the medical instrument is in the vial adapter 1 through the flow path constituted by the internal space of the elastic valve body 80, the housing through hole 73, the central extension path 26, and the communication hole 25c. communicating with the inner space _{M 1} of 40.

Therefore, the first fitting peripheral wall 22 can be fitted to the head 41 of the first vial 40 by sliding the slide member 30 upward along the direction of the axis O of the first fitting peripheral wall 22. In this way, if the medical instrument is connected to the connection portion 21 in a state where the vial adapter 1 is mounted on the first vial 40, the inside of the medical instrument is communicated with the internal space M1 of the _first vial 40. be able to.

  In addition, when the vial adapter 1 is attached to the second vial 50 shown in FIG. 8, which has a smaller diameter than the head portion 41 of the first vial 40, first, as shown in FIG. The slide member 30 is pushed down until the fitting protrusion 36 (see FIG. 8 described later) of the slide member 30 is fitted into the lower fitting groove 23e of the columnar body 23. By this pressing operation, the plurality of peripheral walls 33 of the slide member 30 can be positioned below the bottom surface 23 a of the columnar body 23. Then, as shown in FIG. 7, the slide member 30 is rotated in the circumferential direction with respect to the adapter main body 20, and the flange 24 is inserted into the notch 35 of the slide member 30. By this rotation operation, the state where the plurality of peripheral walls 33 described above are positioned below the bottom surface 23a of the columnar body 23 can be reliably held.

Then, by setting the vial adapter 1 in the state shown in FIG. 7, the vial adapter 1 can be attached to the second vial 50 as shown in FIG. 8. That is, as in the case of mounting on the first vial 40, the claw portions 34 formed on the plurality of peripheral walls 33 of the slide member 30 of the vial adapter 1 are fitted to the head portion 51 of the second vial 50. The needle-like body 25 projecting from the bottom surface 23a of the columnar body 23 is pressed against the stopper body 52 provided on the head 51 of the second vial 50 so as to pass therethrough, whereby the vial adapter 1 is moved to the second vial. 50. As in the case of mounting on the first vial 40, when a medical instrument (not shown) is connected to the connection portion 21, the inside of the medical instrument can be communicated with the internal space M ₂ of the second vial 50.

Thus, the slide member 30 has a smaller diameter than the head 41 of the first vial 40 by sliding the slide member 30 downward along the axis O direction of the first fitting peripheral wall 22. The head 51 of the second vial 50 can be fitted, and in this state, if the medical instrument is connected to the connection portion 21 of the adapter body 20, the inside of the medical instrument M _{2 in} the internal space M ₂ of the second vial 50 is obtained. Can be communicated with.

  Therefore, according to the present embodiment, the vial adapter 1 can be used in a plurality of sizes even if a separate member such as the cap-shaped member described as the prior art is not interposed between the second vial 50 and the vial adapter 1. 40 and 50, and can be easily attached to vials 40 and 50 having a plurality of sizes.

  In addition, when the slide member 30 is pushed down and rotated as described above with reference to FIGS. 6 and 7, the operation piece 32 of the slide member 30 can be easily operated. Since the sign 32a indicating the moving direction is attached, the usability can be improved without mistaking the rotating direction.

  Further, since all of the plurality of peripheral walls 33 of the slide member 30 are connected to the annular wall 31, any of the plurality of peripheral walls 33 can be slid and moved with one touch, and the operability can be further improved.

  Further, an undercut for fitting the slide member 30 and the columnar body 23 together between the slide member 30 and the columnar body 23, in this example, an upper fitting groove 23d and a lower fitting groove 23e (see FIG. 8). Since the fitting protrusion 36 is provided, when the slide member 30 is slid, the upper end and the lower end of the slide range can be recognized by the sense of moderation provided when the undercut is fitted. The property can be further improved.

  The above description shows only one embodiment of the present invention, and various modifications can be made within the scope of the claims. For example, the vial adapter 1 according to the present embodiment has been described as being attachable to vials having two dimensions, the first vial 40 and the second vial 50, but is not necessarily limited to such a configuration. By using a cap-like member separate from the vial adapter described as the technology, it may be attached to a vial having three or more dimensions. Further, the configuration of the connecting portion 21 is not limited to the configuration shown in the present embodiment. For example, the elastic valve body 80 is configured as a disk-shaped valve body having a slit, and the cap 60 is provided with a support structure for the valve body. You can also.

DESCRIPTION OF SYMBOLS 1 Vial adapter 20 Adapter main body 21 Connection part 22 1st fitting surrounding wall 22a Upper end of 1st fitting surrounding wall 22b Outer peripheral wall part 22c Expanding wall part 22d Fitting claw part 23 Columnar body 23a Bottom surface of columnar body 23b Circular recessed part 23c Peripheral surface of columnar body 23d Upper fitting groove (undercut)
23e Lower fitting groove (undercut)
23f Stepped portion 23g Projection 24 Flange 24a Flange opening 24b Edge on outer peripheral side of flange opening 25 Needle-like body 25a Cylinder body 25b Cone body 25c Communication hole 26 Center extending path 27 Vertical slit 30 Slide member (second fitting Wall)
31 annular wall 31a outer peripheral surface of annular wall 32 operation piece 32a marker 33 peripheral wall 34 claw part 35 notch 36 fitting protrusion (undercut)
40 First vial 41 First vial head 42 Plug body 50 Second vial 51 Second vial head 52 Plug body 60 Cap 61 Double thread 62 Upper cylindrical wall 62a Inner circumference of upper cylindrical wall Surface 63 Lower cylindrical wall 63a First inner peripheral surface 63b of lower cylindrical wall Second inner peripheral surface 70b of lower cylindrical wall 70 Housing 71 Cylindrical body 71a Inner peripheral surface of cylindrical body 72 Bottom wall 72a annular recess 73 housing through-hole 80 elastic valve body 81 bellows-like wall 81a lower end part of bellows-like wall 82 cylindrical wall 82a outer peripheral surface of cylindrical wall 83 slit 84 top wall M ₁ internal space of the first vial M ₂ first Internal space of two vials O Axis of first fitting peripheral wall

Claims (6)

An adapter main body having a connection portion connected to the medical instrument, and a first fitting peripheral wall that can be fitted to the head of the first vial;
A second fitting peripheral wall that can be fitted to a head of a second vial having a smaller diameter than the head of the first vial;
The second fitting peripheral wall is slidably mounted on the adapter main body along the axial direction of the first fitting peripheral wall on the radially inner side of the first fitting peripheral wall. To vial adapter. The adapter main body further includes a columnar body connected to the connection portion, and a flange that connects a lower end of the columnar body to an upper end of the first fitting peripheral wall,
The second fitting peripheral wall has a plurality of peripheral walls arranged at intervals in the circumferential direction, and claw portions respectively provided at lower ends of the plurality of peripheral walls,
The vial adapter according to claim 1, wherein each of the plurality of peripheral walls is slidable along an axial direction of the first fitting peripheral wall through an opening formed in the flange. The columnar body has a cylindrical shape,
The second fitting peripheral wall further has an annular wall that slides on the outer peripheral surface of the columnar body, and upper ends of a plurality of peripheral walls of the second fitting peripheral wall are connected to a lower end of the annular wall. The vial adapter according to claim 2.   The second fitting peripheral wall has a notch into which the flange is inserted by rotating the second fitting peripheral wall in the circumferential direction in a connection region between the annular wall and the upper ends of the plurality of peripheral walls, respectively. The vial adapter according to claim 3.   The vial adapter according to claim 4, wherein the annular wall of the second fitting peripheral wall has an operation piece that protrudes radially outward of the annular wall.   The undercut for fitting the second fitting peripheral wall and the columnar body to each other is further provided between the second fitting peripheral wall and the columnar body. The vial adapter as described.

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