JP2007054108A - Needlestick preventing implement - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a needlestick preventing implement capable of preventing needlestick before mixing. <P>SOLUTION: The needlestick preventing implement 8 prevents the needlestick to a rubber plug 6 by being mounted on a double chamber type infusion bag 1 provided with a plurality of storage chambers 3 and 4 partitioned by an easy-to-peel seal partition part 2 and a tightly closed mouth part 7 having the rubber plug 6 for the needlestick and constituted so as to open the easy-to-peel seal partition part 2 by pressurizing the storage chamber 3. The needlestick preventing implement 8 comprises a cover part 9 covering the needlestick surface of the rubber plug 6, a pair of side parts 10 and 11 connected to the cover part 9 and arranged so as to face across the tightly sealed mouth part 7, a pressurizing part 15 extended from the respective side parts to the side of the storage chambers 3 and 4 and arranged on the storage chamber 3, a hooking part 12 hooked to the tightly sealed mouth part 7, and holding means 13 and 14 for holding the hooked state of the hooking part 12. By pressurizing the pressurizing part 15, the easy-to-peel seal partition part 2 is opened, the holding means is released and the hooked state of the hooking part 12 can be released. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention is attached to a multi-chamber type infusion bag having a plurality of storage chambers partitioned by a heat-sealed easily peelable seal partition portion and a sealed mouth portion having a needle piercing rubber stopper, and the easy peel seal partition The present invention relates to a needle piercing prevention tool for preventing needle piercing to the rubber stopper before opening a part.

  Conventionally, this type of multi-chamber infusion bag has been widely used in the medical field of infusion as a container that can separate and contain substances that interact with each other over time and can be mixed immediately before use. Yes.

The multi-chamber type infusion bag is provided with an easily peelable seal partition part by heat fusion in the vicinity of the hermetic mouth part, for example, so as not to administer only the medicine in one storage room without mixing. A device having a sealing part for discharging regulation before mixing is known so that the medicine cannot be discharged unless an opening operation is performed (for example, Patent Document 1).
JP-A-9-327498

  However, the multi-chamber type infusion bag described in Patent Document 1 has not been widely spread because it has the following problems. That is, the vicinity of the discharge part in the container body is not flattened due to the film rising. Therefore, when the discharge restricting sealing portion is formed by heat fusion, there is a problem that wrinkles and pinholes are likely to occur. Due to this, the variation in the heat-sealing strength of the discharge restricting sealing portion increases, and it is not easy to adjust the opening strength of both sealing portions.

  Then, an object of this invention is to provide the needle puncture prevention tool which can be attached to a multi-chamber type infusion bag and can prevent the needle puncture before mixing.

  In order to solve the above-described object, a needle puncture prevention device according to the present invention has a plurality of storage chambers separated by an easily peelable seal partition portion and a sealed mouth portion including a rubber plug for needle puncture, and the storage A needle that is attached to a multi-chamber infusion bag configured to open the easily peelable seal partition portion in response to an increase in internal pressure of the storage chamber by pressing the chamber, and before opening the easily peelable seal partition portion A needle puncture prevention device for preventing piercing, a covering portion covering the needle piercing surface of the rubber stopper, and a pair of pins connected to the covering portion and arranged to face each other through the sealing port portion A side portion, a pressing portion extending from the side portion toward the storage chamber and disposed on the storage chamber, a hook portion hooked on the sealing port, and a hooking state of the hook portion Holding means, and pressing the pressing portion to make the easily peelable seal Cut portion is opened, and the holding means is released, wherein the release of the hooking state of the hooking portion becomes possible.

  The holding means includes an engaging means formed on the one side portion and an engaged means formed on the other side portion, and the engaging means and the engaged means are By engaging, the latching state of the latching portion can be maintained. In a state where the engaging means and the engaged means are engaged, the pair of side sides are urged in a direction away from each other with a connecting portion with the covering portion as a fulcrum. It is preferable that the engaging means and the engaged means are engaged against an urging force.

  Here, the engagement means is a pair of engagement pieces extending from the one side portion so as to face each other through the sealing port portion, and having engagement claws formed at the tips thereof. And the engaged means are engaged with the engaging pieces biased in a direction in which the pair of engaging claws are separated from each other, and the engaged means is disposed on the other side portion. A pair of engaging grooves formed and engaged against the engaging claws against the biasing force can be formed.

  Alternatively, the engaging means includes an engaging piece that extends from the one side portion so as to be opposed to each other through the hermetic mouth portion, and has a concave engaging portion formed at an upper portion of the inner wall surface. The means may be constituted by a side edge of the other side portion formed so as to engage with an engaging portion of the engaging piece.

  Further, the holding means connects the pair of connecting pieces extending from the one side part so as to face each other through the sealing port part, and connects the connecting piece and the other side part so as to be easily cut. The easy-cut connecting portion may be configured such that by pressing the pressing portion, the easy-cut connecting portion is cut and the holding means is released.

  According to the needle puncture prevention device according to the present invention, since the holding means for holding the latching state of the latching portion is released by pressing the pressing portion disposed on the storage chamber, the multiple chamber The easy-peeling seal partition part of the type infusion bag can be peeled off simultaneously with the removal of the needle puncture prevention tool from the multi-chamber type infusion bag, and the needle puncture before mixing can be reliably prevented.

  Hereinafter, embodiments of a needle puncture prevention device according to the present invention will be described with reference to the drawings. In addition, the same code | symbol was attached | subjected about the same component through all the drawings and all embodiment.

  First, a first embodiment will be described with reference to FIGS. FIG. 1 is a perspective view showing a state (a) in which a needle puncture prevention device is attached to a multi-chamber infusion bag and a state (b) in which a latching state of a latching part is released, and FIG. It is explanatory drawing which shows the process of removing a prevention tool from a multi-chamber type infusion bag.

  As shown in FIG. 1, the multi-chamber infusion bag 1 is a flexible and transparent transparent plastic container, and includes a plurality of storage chambers 3 and 4 separated by an easily peelable seal partition portion 2, and a needle stick. And a sealing port portion 7 provided with a common rubber stopper 6. In the infusion bag 1, when one or both of the storage chambers 3 and 4 are pressed, the internal pressure of the pressed storage chamber rises, and the easy peel seal partition portion 2 peels in accordance with the increase in internal pressure, and the storage chambers 3 and 4 Is configured to open.

  The needle piercing prevention tool 8 includes a covering portion 9 that covers the needle piercing surface of the rubber stopper 6, a pair of side portions 10 and 11 connected to the covering portion 9, and the side portions 10 and 11 from the storage chamber 3. It has the press parts 15 and 16 formed so that it may extend to 4 side and it may be arrange | positioned on the storage chamber 3, and it can be set as a plastic molded product.

  The side portions 10 and 11 have a latching portion 12 that latches on the sealing port portion 7. In the illustrated example, the latching portions 12 a, 12 b protrude and extend from the inner bottom portions of the side portions 10, 11, and a pair is formed so as to be hooked on the shoulder portion of the sealing port portion 7. The hooking portion 12 is held in a hooking state with respect to the sealing port 7 by a holding means described later (see FIG. 1A) or released (see FIG. 1B).

  In addition, the pair of side portions 10 and 11 have holding means. In the present embodiment, the holding means includes the engaging means formed on one side portion 10 and the other side portion 12. It is comprised by the to-be-engaged means formed in this. More specifically, the engagement means is an engagement piece 13 that extends from one side portion 10 so as to be opposed to each other through the sealing port portion 7 and has an engagement claw 13a formed at the tip thereof. The means is a pair of engaging grooves 14 formed on the other side 11 and engaged with the engaging claws 13a. Here, in a state where the engagement claws 13a and the engagement grooves 14 are engaged, the engagement pieces 13 are urged in a direction in which the pair of engagement claws 13a are separated from each other by the retained elasticity. The engaging claw 13a and the engaging groove 14 are engaged against the urging force. In this way, the engagement piece 13 and the engagement groove 14 are engaged, so that the latching state of the latching portion 12 is maintained, so that the needle piercing prevention device 8 does not come off from the sealing port portion 7. (See FIG. 1 (a)).

  In the illustrated connecting structure, the needle puncture preventing tool 8 is made flexible by thinning the connecting portion between the side portions 10 and 11 and the covering portion 9, and therefore the pair of side portions 10 and 11. Can be swingably connected to the covering portion 9 in the opening direction from the state of FIG. 1 (a), so that the pair of side portions 10, 11 can be connected as shown in FIG. 1 (b). Configured to open fully. The side portions 10 and 11 are formed so that the latching portion 12 is in contact with the sealing port portion 7 or the cut portions of the connecting portion between the covering portion 9 and the side portions 10 and 11 are adjusted. As a result, it does not move in the closing direction from the state of FIG.

  Next, the usage method of the needle puncture prevention tool 8 comprised as mentioned above is demonstrated based on FIG.

  First, as shown in FIG. 2A, a needle puncture prevention tool 8 is attached to the multi-chamber infusion bag 1. At this time, the engagement piece 13 is engaged with the engagement groove 14 while the engagement claws 13a formed at the distal ends of the engagement pieces 13 are urged away from each other, so that The latching state of the latching portion 12 is maintained. Thus, since the latching part 12 is latched by the sealing port part 7, the needle puncture prevention tool 8 does not remove | deviate from the multi-chamber type infusion bag 1. FIG.

  Next, when the pressing portion 15 is pressed to the storage chamber 3 side by pressing it with the hand and the storage chamber 3 is pressed as it is, the internal pressure of the storage chamber 3 is increased, and the easy-peeling seal partition portion 2 is peeled off. 3 and 4 are opened. At the same time, by pressing the pressing portion 15, the side portion 11 moves to the sealing port portion 7 side, so that the engaged state between the engaging claw 13 a and the engaging groove 14 is released, that is, the holding means. Is released. Thus, when the engagement state of the engagement claw 13a and the engagement groove 14 is released, the pair of engagement pieces 13 are urged in the direction in which the engagement claw 13a formed at the tip of the engagement piece 13 is separated from each other. Therefore, the engagement piece 13 moves in a direction away from the sealing port 7 with the connecting portion with the one side portion 10 as a fulcrum (see FIG. 2B).

  And since the engagement state of the engagement piece 13 and the engagement groove 14 is cancelled | released, the side parts 10 and 11 are opened, the latching state of the latching | locking part 12 is cancelled | released, and a needle puncture prevention tool 8 can be removed from the multi-chamber infusion bag 1 (see FIG. 2C).

  Next, a second embodiment of the needle penetration preventing tool will be described with reference to FIGS. FIG. 3 is a perspective view showing a state (a) in which the needle puncture prevention device according to the second embodiment is attached to a multi-chamber infusion bag and a state (b) in which the latching state of the latching part is released, FIG. 4 is an explanatory view showing a step of removing the needle penetration preventing device according to the second embodiment from the multi-chamber infusion bag.

  As shown in FIGS. 3 and 4, the needle puncture prevention device 8 according to the second embodiment is different from the first embodiment in that the engaging means is on one side so as to face each other through the sealing port portion 7. This is an engagement piece 16 extending from the portion 10 and having a concave engagement portion 21 formed at the upper part of the inner wall surface. The engaged means is a side edge of the other side portion 11 formed to engage with the concave engaging portion 21 of the engaging piece 16. Here, the concave engaging portion 21 includes a first engaging convex portion 18, a second engaging convex portion 19, and an engaging concave portion 20, and the first engaging convex portion 18 and the second engaging convex portion 21. The other side part 11 is formed so as to engage with the engaging concave part 20 sandwiched between the convex parts 19. Further, as will be described later, the first engaging convex portion 18 has a guide inclined surface 18a so that the side portion 11 can be easily moved away from the sealing port portion 7, and the second engaging portion 18 It is formed so as to protrude higher than the engaging convex portion 19. Other structures are the same as those in the first embodiment.

  A method of using the needle puncture prevention device 8 according to the second embodiment configured as described above will be described with reference to FIGS.

  As shown in FIG. 3A and FIG. 4A, the other side 11 is engaged with a concave engagement portion 21 formed on the inner wall surface of the side surface 16 so that the hook 12 is hooked. The needle puncture prevention device 8 is attached to the multi-chamber infusion bag 1 while maintaining the stopped state. The other side portion 11 is urged in a direction away from the sealing port portion 7 by its retained elasticity and engaged with the concave engagement portion 21.

  When the pressing portion 15 is pressed toward the storage chamber 3 side, the easily peelable seal partition portion 2 is peeled and the storage chambers 3 and 4 are opened, and the other side portion 11 is engaged as in the above embodiment. The first engaging convex portion 18 of the portion is moved to the sealing port portion 7 side (see FIG. 4B).

  And the other side part 11 from which the engagement state was cancelled | released is the momentum of restoring force along the guide inclined surface 18a of the 1st engagement convex part 18 which protrudes larger than the 2nd engagement convex part 19. Thus, the second engagement convex portion 19 is exceeded by moving in a direction away from the sealing port portion 7. Thus, it can be moved in the direction away from the sealing opening 7 without fitting again into the engagement recess 20, and the latching state of the latching portion 12 is released, so that the needle piercing prevention device 8 is placed in the multiple chambers. It can remove from the type | mold infusion bag 1 (refer FIG.3 (b) and FIG.4 (c)).

  Next, a third embodiment of the needle penetration preventing device according to the present invention will be described with reference to FIGS. FIG. 5 is a perspective view showing a state (a) in which the needle puncture preventing device according to the third embodiment is attached to a multi-chamber infusion bag and a state (b) in which the latching state of the latching part is released. FIG. 6 is an explanatory view showing a step of removing the needle puncture prevention device according to the third embodiment from the multi-chamber infusion bag.

  As shown in FIGS. 5 and 6, the needle puncture prevention device 8 according to the third embodiment is different from the first embodiment in that the holding means is on one side portion so as to face each other through the sealing port portion 7. 10, a pair of connecting pieces 22 extending from 10, and an easily cut connecting portion 17 that connects the connecting piece 22 and the other side portion 11 so as to be easily cut. In the present embodiment, the distal end portion of the connecting piece 22 has a swing connecting piece 22a that is swingably connected, and the swing connecting piece 22a and the other side portion 11 are easily cut and connected. 17 is connected so as to be easily cut.

  The position of the easily cut connecting portion 17 is not particularly limited as long as the connecting piece 22 and the other side portion 11 are connected so as to be easily cut as described above. In order to make it easy to cut | disconnect the easily cut connection part 17 when pressing, the easy cut connection part 17 is formed in the position away from the connection part with the coating | coated part 9 which is a fulcrum of the side part 11. Is preferred. Other structures are the same as those in the first embodiment.

  A method of using the needle puncture prevention tool 8 configured as described above will be described with reference to FIG.

  First, as shown in FIG. 5A and FIG. 6A, the swinging connecting portion 22a formed at the tip of the connecting piece 22 extending from one side portion 10 and the other side portion 11 are provided. Since it is connected by the easily cut connecting part 17, the hooked state of the hooking part 12 is maintained, and the needle penetration preventing tool 8 is attached to the multi-chamber infusion bag 1.

  Here, when the pressing portion 15 is pressed toward the storage chamber 3, the easily peelable seal partition portion 2 is peeled off, the storage chambers 3 and 4 are opened, and the side portion 11 is opened as in the first embodiment. Moves to the sealing port 7 side, so that the easily cut connecting portion 17 is cut (see FIG. 6B).

  And since the side part 11 was cut | disconnected from the rocking | fluctuation connection part 22a, the side parts 10 and 11 are opened, the latching state of the latching | locking part 12 is cancelled | released, and the needle puncture prevention tool 8 is equipped with a multi-chamber type infusion bag. 1 can be removed (see FIGS. 5B and 6C).

  In addition, the easily cut | disconnecting connection part 17 can change the shape suitably, or can provide a reinforcement rib (not shown) etc. so that it may not cut | disconnect, when the press part 15 is accidentally pulled near.

  As described above, by attaching the needle puncture prevention device according to the present invention to the multi-chamber infusion bag, needle puncture can be prevented, and the needle puncture prevention device is removed from the multi-chamber infusion bag. With the pressing operation, the storage chamber is pressed, and the chemical solution in the multi-chamber type infusion bag can be mixed, that is, if the chemical solution in the multi-chamber type infusion bag is not mixed, Since it cannot be removed from the multi-chamber infusion bag, needle penetration before mixing can be reliably prevented.

  In addition, since the adjustment of strength required to release the holding means of the needle puncture prevention device according to the present invention is determined by the shape and dimensions, a seal that is determined by temperature management of heat fusion, such as an easily peelable seal partition portion. It is easier than adjusting the strength. Further, the problem of defects such as seal wrinkles and pinholes due to heat fusion as in the conventional discharge regulation sealing portion is eliminated, and manufacturing is easy. In addition, as long as the size of the sealed mouth is suitable, it can be applied to various infusion bags and is highly versatile. Further, since the small chamber is not formed in the sealed opening unlike the conventional discharge restricting sealing portion, the problem of sterilization and crystal precipitation does not occur.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to this, A various change is possible unless it deviates from the meaning. For example, in the above-described embodiment, the shape of the pressing portion of the needle puncture prevention tool is a triangular shape, but may be a fan shape, a rectangular shape, a rod shape, or the like.

  In the first and second embodiments, when the engagement between the engaging means and the engaged means is released, as shown in FIG. 11 is structured to be swingably connected to the covering portion 9 so that it can be completely opened, but can be structured as shown below. That is, the side portions 10 and 11 are not swingably connected to the covering portion 9, and when the side portions 10 and 11 are not engaged by the engaging means and the engaged means, the latching portion 12 is closed. The side portions 10 and 11 are formed so as to be disengaged from each other (see FIG. 7), and the side portions 10 and 11 are in contact with the covering portion 9 when the engaging means and the engaged means are engaged. It is also possible to form the needle piercing prevention device 8 so as to be biased in directions away from each other with the connecting portion as a fulcrum.

  Moreover, in the said 1st Embodiment, although the latching | locking part 12 is formed so that it may protrude and extend from the inner bottom part of the side parts 10 and 11, as shown in FIG. 8, it is the engagement which comprises a holding means. It can also be provided on the piece 13.

  Moreover, in the said 3rd Embodiment, the coating | coated part 9 and the side parts 10 and 11 can also be connected with a hinge etc.

It is a perspective view which shows the state (a) which attached 1st Embodiment of the needle puncture prevention tool which concerns on this invention to the multi-chamber type infusion bag, and the state (b) which released the holding means. It is sectional drawing explaining the usage method of 1st Embodiment of the needle puncture prevention tool which concerns on this invention. It is a perspective view which shows the state which attached 2nd Embodiment of the needle puncture prevention tool which concerns on this invention to the multi-chamber type infusion bag. It is the sectional view on the AA line of FIG. 3 explaining the usage method of 2nd Embodiment of the needle puncture prevention tool which concerns on this invention. It is a perspective view which shows the state which attached 3rd Embodiment of the needle puncture prevention tool which concerns on this invention to the multi-chamber type infusion bag. It is the sectional view on the AA line of FIG. 5 explaining the usage method of 3rd Embodiment of the needle puncture prevention tool which concerns on this invention. It is side surface sectional drawing which shows other embodiment of the needle puncture prevention tool which concerns on this invention. It is front sectional drawing which shows other embodiment of the needle puncture prevention tool which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Multi-chamber type infusion bag 2 Easy peeling seal partition part 3 and 4 Storage chamber 6 Rubber stopper 7 Sealing port part 8 Needle stick prevention tool 9 Covering parts 10 and 11 Side part 12 Latch part 13 Engagement piece 13a Engagement Claw 14 Engagement groove 15 Press part 16 Engagement piece 17 Easy cut connection part 21 Concave engagement part 22 Connection piece

Claims (6)

It has a plurality of storage chambers separated by an easily peelable seal partition portion and a sealing port portion having a rubber plug for needle piercing, and the easy peel according to an increase in internal pressure of the storage chamber by pressing the storage chamber A needle puncture prevention device that is attached to a multi-chamber infusion bag configured to open a seal partition portion and prevents needle piercing to the rubber stopper before opening the easily peelable seal partition portion,
A covering portion covering the needle puncture surface of the rubber stopper;
A pair of side parts connected to the covering part and arranged to face each other through the sealing port part;
A pressing portion that extends from each of the side portions toward the storage chamber and is disposed on the storage chamber;
A latching portion that latches on the sealing opening,
Holding means for holding the latching state of the latching portion;
With
By pressing the pressing portion, the easily peelable seal partition portion is opened, and the holding means is released, so that the latching state of the latching portion can be released. Ingredients.   The holding means includes an engaging means formed on the one side portion and an engaged means formed on the other side portion, and the engaging means and the engaged means are The needle piercing prevention device according to claim 1, wherein the hooking portion is held by the engagement of the hooks.   In a state where the engaging means and the engaged means are engaged, the pair of side sides are urged in a direction away from each other with a connecting portion with the covering portion as a fulcrum. The needle piercing prevention device according to claim 2, wherein the engaging means and the engaged means are engaged against an urging force. The engaging means is a pair of engaging pieces extending from the one side part so as to face each other through the sealing port part and having an engaging claw formed at a tip thereof, and the engaging means and the engaged part The pair of engaging claws are urged in a direction of separating from each other in a state where the coupling means is engaged,
The said engaged means is comprised from a pair of engagement groove | channel which is formed in said other side part and engages against the said engaging claw and the said urging | biasing force. The needle piercing prevention device according to 1. The engagement means includes an engagement piece extending from the one side portion so as to be opposed to each other through the sealing port portion, and having a concave engagement portion formed on an inner wall surface upper portion.
The said engaged means is comprised from the side edge of said other side part formed so that it may engage with the engaging part of the said engagement piece, The Claim 2 or 3 characterized by the above-mentioned. Needle puncture prevention tool. The holding means has a pair of connecting pieces extending from the one side portion so as to face each other through the hermetic mouth portion, and the connecting piece and the other side portion are connected so as to be easily cut. The needle piercing prevention device according to claim 1, further comprising: a cutting connecting portion, wherein the easily cutting connecting portion is cut and the holding means is released by pressing the pressing portion. .

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