JP4890948B2 - Chemical container with injection needle - Google Patents

Description

  The present invention relates to a chemical solution container filled with a chemical solution, and in particular, a chemical solution with an injection needle provided with a mouth part of an infusion container, an infusion circuit, a mixed injection part of a blood circuit, or a hypodermic or sarcasm needle. Concerning the container.

2. Description of the Related Art Conventionally, there has been proposed an ampoule / syringe in which an extruding piston is integrally provided in a bellows-like cylinder capable of enclosing a drug solution (for example, see Patent Document 1). According to such an ampoule-use syringe, it is possible to eliminate the work of sucking the medicinal solution from the ampoule into the syringe, the operation of cutting the neck of the ampoule, and the disposal of the ampoule.
Japanese Patent No. 2990380

  However, in the conventional ampule combined syringe as described above, although the cylinder and the piston for extrusion are integrally formed, the needle portion including the injection needle is not integrally formed. Since it is necessary to attach a needle part, there exists a problem that the attachment operation | work is complicated.

  In addition, when attaching the needle part to the tip of the cylinder body part, the injection needle of the needle part is exposed, so the attachment work must be performed while paying attention to this injection needle. There is a problem that it becomes complicated. In order to prevent the injection needle from being exposed, it is conceivable to put a cap on the injection needle in advance, but in this case, there arises a problem that the cost associated with the production of the cap increases.

  The present invention has been made in view of such problems, and does not require an operation of attaching an injection needle or the like, and can perform injection or mixed injection simply by omitting an operation of sucking a drug solution from an ampoule into a syringe. An object is to provide a chemical container with a needle.

A drug solution container with an injection needle according to the present invention is formed so as to cover a bellows-like body part filled with a drug solution, an injection needle part capable of injecting the drug solution into an injection target, and a tip part of the injection needle part is, includes a cover portion to which the chemical solution is separated from the injection needle to the needle unit to form a hole for the outflow, a connecting piece for connecting the said needle portion and the cover portion, said The body part, the injection needle part, and the cover part are integrally formed, and a connection area between the connection piece and the injection needle part is smaller than a connection area between the connection piece and the cover part .

  According to the drug solution container with an injection needle of the present invention, the injection needle part is integrally formed in the body part, and the body part is filled with the drug solution. It is possible to perform injection or mixed injection by omitting the operation of sucking the drug solution into the syringe. And when performing injection or mixed injection using the drug solution container with an injection needle of the present invention, it is possible to form a hole through which the drug solution flows out in the injection needle part by separating the cover part from the injection needle part. It becomes possible to perform injection or mixed injection by work.

In the drug solution container with the injection needle, by forming the cover portion so as to cover the distal end portion of the injection needle portion, the distal end portion of the injection needle portion is protected by the cover portion. In addition to preventing breakage, it is possible to prevent the user from being injured by the tip portion. It is also possible to suppress infection damage when a chemical solution is injected into an infusion container, an infusion circuit, or a blood circuit.

  Moreover, in the said chemical | medical solution container with an injection needle, it is preferable to form the said hole part in positions other than the front-end | tip part of the said injection needle part. In this case, since the hole is formed at a position other than the tip having a small surface area, it is possible to appropriately form the hole from which the chemical solution flows out.

  In particular, it is preferable to form a plurality of the holes. In this case, it is possible to increase the amount of the chemical liquid flowing out from the hole.

  Moreover, in the said chemical | medical solution container with a syringe needle, it is preferable to integrally mold the said trunk | drum part, a syringe needle part, and a cover part by blow molding. Thus, by performing integral molding by blow molding, it becomes possible to manufacture the drug solution container with a syringe needle at low cost and in large quantities.

  In particular, it is preferable to fill the body portion with the chemical solution during the blow molding. In this case, the process of integrally molding the body part, the injection needle part, and the cover part and the process of filling the chemical solution can be performed collectively by blow molding.

  Moreover, the said chemical | medical solution container with an injection needle may comprise the holding member which controls expansion / contraction of the said trunk | drum part. In this case, since the expansion and contraction of the body portion can be restricted by the holding member, it is possible to prevent a situation where the chemical liquid leaks due to the pressure applied to the body portion.

  In particular, it is preferable to display the type of the chemical solution on the holding member. In this case, since the internal chemical solution can be easily checked, it is possible to prevent a situation where an incorrect chemical solution is injected into the infusion container, the infusion circuit, or the blood circuit.

  Moreover, in the chemical container with an injection needle, it is preferable to provide a regulating member that regulates expansion of the body part in a contracted state on the inner wall of the body part. In this case, when the body part is contracted by being pushed in, expansion of the body part is restricted by the restricting member, so that the body part is not carelessly pushed back, and the backflow of the chemical solution can be prevented.

  In addition, in the drug solution container with an injection needle, the shape of the bellows of the body portion is not particularly limited as long as it has a structure exhibiting an expansion / contraction function, and can be appropriately changed. For example, it can be considered to have a spiral shape or a concentric shape.

  According to the present invention, it is possible to provide a drug solution container with an injection needle that does not require an operation of attaching an injection needle or the like and can easily perform injection or mixed injection by omitting an operation of sucking the drug solution from an ampoule into a syringe. It becomes possible.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a perspective view for explaining the configuration of a drug solution container 1 with an injection needle according to an embodiment of the present invention.

  The drug solution container 1 with an injection needle according to the present embodiment is formed by well-known blow molding. That is, a synthetic resin material having thermoplasticity is extruded into a tube shape in the molding die of the drug solution container 1 with a syringe needle, and the bottom of the tube-shaped synthetic resin is sealed with the die. Then, the compressed liquid is blown into the tube-shaped synthetic resin by the blowing / filling nozzle and molded, and the predetermined drug solution is filled to complete the drug solution container 1 with the injection needle. For example, the chemical solution container 1 with an injection needle is molded using a synthetic resin material having chemical resistance such as polyethylene.

  As shown in FIG. 1, the drug solution container 1 with a syringe needle includes a bellows-shaped body portion 2, a connecting portion 3 formed at the upper end portion of the body portion 2, and an injection needle formed at the top of the connecting portion 3. Part 4 and cover part 5 formed to cover the tip of injection needle part 4. The body part 2, the connecting part 3, the injection needle part 4 and the cover part 5 are integrally formed by the above-described blow molding.

  The trunk | drum 2, the connection part 3, and the injection needle part 4 are shape | molded in the state connected in the space formed inside. Various chemicals are filled in these at the time of blow molding. On the other hand, the injection needle part 4 and the cover part 5 are connected only by a connecting piece to be described later. A space formed in the body part 2, the connecting part 3, and the injection needle part 4 is not connected to the cover part 5.

  The trunk | drum 2 has a structure which can be expanded-contracted to the up-down direction shown in FIG. 1 by providing a bellows-shaped part. By expanding and contracting the bellows-like portion, the medicinal solution can be injected into an infusion container, an infusion circuit, and a blood circuit from a hole portion of an injection needle portion 4 to be described later. In addition, as shown in FIG. 1, the surface for the trunk | drum 2 is describing the scale for grasping | ascertaining the content volume of the chemical | medical solution with which the inside of a bellows-shaped part is filled.

  The connection part 3 has a substantially conical shape and plays a role of connecting the body part 2 and the injection needle part 4. When performing injection or mixed injection using the drug solution container 1 with the present injection needle, by pushing the bottom surface of the body portion 2 in the direction of the injection needle portion 4 with a finger hooked on the slope of the connection portion 3, The internal drug solution is injected into the infusion container, the infusion circuit, and the blood circuit.

  The injection needle part 4 has a shape whose outer shape gradually becomes narrower in the upward direction shown in FIG. 1, and the periphery of the tip part is the mouth part of the infusion container, the infusion circuit, the co-infusion part of the blood circuit, or the subcutaneous part of the patient It is stabbed in irony. The injection needle portion 4 is connected to the cover portion 5 by two connecting pieces (described later) disposed in the vicinity of the distal end portion thereof. As described later, the cover portion 5 is cut off, and these connecting pieces are removed, whereby a hole portion through which the drug solution can flow out is formed in the injection needle portion 4. In addition, the cover part 5 is formed in flat form, and has fixed thickness so that the front-end | tip part of the injection needle part 4 can be protected.

  2 and 3 are enlarged views of the vicinity of the injection needle portion 4 and the cover portion 5 of the drug solution container 1 with an injection needle according to the present embodiment. 2 shows a state before the cover part 5 is separated from the injection needle part 4, and FIG. 3 shows a state after the cover part 5 is separated from the injection needle part 4.

  As shown in FIG. 2, the injection needle portion 4 and the cover portion 5 are connected by only two connection pieces 6 formed on the cover portion 5 in the vicinity of the distal end portion of the injection needle portion 4. The reason why these are connected only by the two connecting pieces 6 is to make it easy to separate the cover portion 5 from the injection needle portion 4. The connecting piece 6 is set so that the connecting area with the injection needle part 4 is smaller than the connecting area with the cover part 5. The reason why the connection area with the cover portion 5 is increased in this way is that the connection piece 6 remains on the cover portion 5 side when the cover portion 5 is detached.

  When the cover part 5 is separated from the injection needle part 4 from the state shown in FIG. 2, the connecting piece 6 remains on the cover part 5 side as shown in FIG. As a result of the connection piece 6 remaining in the cover portion 5 in this way, a hole 7 through which the internal drug solution can flow out is formed at a position corresponding to the connection piece 6 in the injection needle portion 4. In the present embodiment, the two hole portions 7 are formed in the vicinity of the distal end portion of the injection needle portion 4.

  Hereinafter, the case where mixed injection is performed using the drug solution container 1 with an injection needle according to the present embodiment will be described. When co-injection is performed using the drug solution container 1 with a syringe needle, the cover 5 is first separated from the syringe needle 4. Thereby, a hole 7 is formed at a predetermined position of the injection needle portion 4. At this time, since the injection needle part 4 and the cover part 5 are connected by only two connecting pieces 6, the cover part can be easily obtained by performing a work such as twisting by a user such as a doctor with a force exceeding a certain level. 5 can be separated.

  If the connecting piece 6 is removed by cutting off the cover part 5, the tip of the injection needle part 4 is inserted into an infusion container, an infusion circuit, or a blood circuit until the hole part 7 enters the inside. Then, by pushing the bottom surface of the body portion 2 (for example, with the thumb) in the direction of the injection needle portion 4 with a finger (for example, an index finger and a middle finger) hooked on the slope of the connecting portion 3, the drug solution from the hole portion 7 Is injected into the infusion container, infusion circuit, and blood circuit. When a predetermined amount of drug solution has been injected, the injection needle unit 4 is withdrawn from the infusion container, the infusion circuit, and the blood circuit, and processing such as disinfection is performed on the inserted position as necessary. Thus, a series of operation | movement in the case of performing co-injection using the chemical | medical solution container 1 with this injection needle is complete | finished. When the injection is finished and the chemical container 1 with the injection needle is discarded, the waste can be reduced by discarding the bellows-shaped body portion 2 in a contracted state.

  By the way, the chemical liquid container 1 with an injection needle according to the present embodiment includes the bellows-like body part 2, and therefore it is necessary to prevent a certain pressure from being applied to the body part 2 when storing it. is there. Here, the handling at the time of storing the chemical | medical solution container 1 with an injection needle which concerns on this Embodiment is demonstrated. FIG. 4 is a perspective view for explaining a state when storing the drug solution container 1 with an injection needle according to the present embodiment.

  In the drug solution container 1 with the present injection needle, the hole portion 7 is formed in the injection needle portion 4 by separating the cover portion 5 from the injection needle portion 4, so that the fixed portion with respect to the body portion 2 is maintained until the cover portion 5 is separated. Can withstand pressure. However, when a pressure higher than a certain level is applied to the body portion 2, the connecting portion between the injection needle portion 4 and the cover portion 5 may be damaged, and a situation in which the drug solution leaks from the hole portion 7 may occur.

  For this reason, when the drug solution container 1 with the injection needle is stored, a holding member 8 is attached around the body part 2 as shown in FIG. 4 so that pressure is not applied to the body part 2 beyond a certain level. Yes. The holding member 8 is covered from the vicinity of the lower end portion of the connecting portion 3 to the vicinity of the lower end portion of the body portion 2 and plays a role of holding the length of the body portion 2 so as not to be shorter than a certain length.

  In particular, in the present embodiment, a label indicating the type of chemical liquid filled in the chemical liquid container 1 with a syringe needle is attached around the holding member 8. This makes it possible to easily check the internal chemical solution, and prevents a situation where an incorrect chemical solution is injected into the infusion container, the infusion circuit, or the blood circuit.

  As described above, according to the chemical solution container 1 with an injection needle according to the present embodiment, the injection needle portion 4 is integrally formed with the body portion 2 via the connecting portion 3, and the body portion 2 is filled with the chemical solution. Therefore, it is possible to perform injection or mixed injection without requiring an operation of attaching an injection needle or the like and omitting an operation of sucking a drug solution from an ampoule into a syringe. Therefore, it is possible to prevent a needle stick accident during work. In addition, the time required for chemical solution adjustment and mixed injection can be shortened. When injection or mixed injection is performed using the drug solution container 1 with the present injection needle, a hole 7 through which the drug solution flows out can be formed in the injection needle unit 4 by separating the cover unit 5 from the injection needle unit 4. It is possible to perform injection or mixed injection by a simple operation.

  Further, in the drug solution container 1 with the injection needle according to the present embodiment, the tip portion of the injection needle portion 4 is protected by the cover portion 5, so that the tip portion of the injection needle portion 4 is prevented from being damaged. At the same time, the tip can prevent the user from being injured. It is also possible to suppress infection damage when a chemical solution is injected into an infusion container, an infusion circuit, or a blood circuit.

  Further, in the drug solution container 1 with an injection needle according to the present embodiment, the hole 7 is formed at a position other than the tip of the injection needle 4 by separating the cover 5 from the injection needle 4. ing. Thereby, since the hole part 7 is formed in positions other than the front-end | tip part with a narrow surface area, it becomes possible to form the hole part 7 from which a chemical | medical solution flows out appropriately. In particular, since a plurality of (two) hole portions 7 are formed, the amount of the chemical solution flowing out from the hole portion 7 can be increased.

  Furthermore, in the drug solution container 1 with an injection needle according to the present embodiment, the body part 2, the connecting part 3, the injection needle part 4 and the cover part 5 are integrally formed by blow molding, so the drug solution container with the injection needle 1 can be manufactured inexpensively and in large quantities. In particular, since the body part 2 is filled with the chemical solution at the time of blow molding, the process of integrally molding the body part 2, the connecting part 3, the injection needle part 4 and the cover part 5 and the process of filling the chemical solution are collectively performed. Can be done.

  In addition, this invention is not limited to the said embodiment, It can change and implement variously. In the above-described embodiment, the size, shape, and the like illustrated in the accompanying drawings are not limited to this, and can be appropriately changed within a range in which the effect of the present invention is exhibited. In addition, various modifications can be made without departing from the scope of the object of the present invention.

  For example, in the above-described embodiment, the case where the cover portion 5 includes the two connecting pieces 6 is described. However, the number of the connecting pieces 6 is not limited to this, and can be changed as appropriate. . For example, the number may be one or three or more. Moreover, it can change suitably also about the position in which the connection piece 6 is formed. Further, along with these, the number of the hole portions 7 formed in the injection needle portion 4 and the positions of the hole portions 7 can be appropriately changed. For example, the hole portion 7 may be formed at the distal end portion of the injection needle portion 4.

  Moreover, in the said embodiment, although shown about the case provided with the substantially cone-shaped connection part 3 which connects the trunk | drum 2 and the injection needle part 4, about this connection part 3, it is limited to this. Instead, it can be changed as appropriate. Any shape may be used as long as it is easy to use when performing injection or mixed injection using the drug solution container 1 with a syringe needle. For example, a holding piece for holding the user's finger may be formed.

  Moreover, the shape of the chemical | medical solution container 1 with an injection needle which concerns on the said embodiment can be changed suitably. FIG.5 and FIG.6 is a figure which shows the other shape of the chemical | medical solution container 1 with a syringe needle which concerns on this Embodiment. 5 and 6 show a state in which the cover portion 5 is cut off and the hole portion 7 is formed. 5 and 6, the same components as those in FIG. 1 are denoted by the same reference numerals, and the description thereof is omitted.

  The medicinal solution container 1 with an injection needle shown in FIG. 5 has a spherical shape at the lower end of the body 2, and a protrusion that can be fitted to the inner wall of the connecting portion 3 at the bottom of the body 2. 1 is different from the drug solution container 1 with an injection needle shown in FIG. In addition, this protrusion part 9 functions as a control member which controls expansion | extension of the said trunk | drum 2 in the state which the trunk | drum 2 contracted.

  In the drug solution container 1 with an injection needle shown in FIG. 5, when the body part 2 is pushed in to mix the liquid medicine, the protrusion part 9 is fitted and fixed to the inner wall part of the connecting part 3, so the body part 2 is not prepared. It is possible to prevent the back flow of the chemical solution without being pushed back to the back.

  The medicinal solution container 1 with a syringe needle shown in FIG. 6 is formed with an operation piece 10 on which a finger is hooked when the body part 2 is pushed in. The bottom part of the body part 2 can be fitted to the inner wall part of the connecting part 3. The medicinal solution container 1 with an injection needle shown in FIG. 1 is different in that the protrusion 11 is formed and the shape of the connecting portion 3 is substantially the same as that of the protrusion 11 and accommodates the protrusion 11. Different. In addition, this projection part 11 functions as a control member which controls expansion | extension of the said trunk | drum 2 in the state which the trunk | drum 2 contracted similarly to the projection part 9 shown in FIG.

  In the drug solution container 1 with an injection needle shown in FIG. 6, as in the case of the drug solution container 1 with an injection needle shown in FIG. Since the body portion 2 is not pushed back carelessly, it becomes possible to prevent the back flow of the chemical solution.

  In FIGS. 5 and 6, a protrusion 9 (11) that fits the inner wall portion of the connecting portion 3 is provided as a restricting member that restricts the extension of the body portion 2 when the body portion 2 is contracted. Shows about. However, the configuration of the restricting member is not limited to this, and can be changed as appropriate on the condition that the expansion of the body portion 2 is restricted in a state where the body portion 2 is contracted. The position of the projection 9 (11) and the target portion to be fitted can be changed as appropriate. However, considering that the back surface of the body portion 2 is pushed in and mixed with the chemical solution, the configuration shown in FIGS. 5 and 6 is preferable.

  Further, in the above embodiment, the case where the bellows portion in the body portion 2 is provided in a ring shape arranged in parallel is shown, but the shape of the bellows portion is not limited to this, and can be appropriately changed. It is. For example, the bellows portion may be spiral or concentric. In this case, the return of the bellows part can be reduced as compared with the case where the bellows part is provided in a ring shape arranged in parallel as in the above embodiment.

It is a perspective view for demonstrating the structure of the chemical | medical solution container with a syringe needle which concerns on one embodiment of this invention. It is an enlarged view of the injection needle part and cover part periphery of the chemical | medical solution container with a syringe needle concerning the said embodiment. It is an enlarged view of the injection needle part and cover part periphery of the chemical | medical solution container with a syringe needle concerning the said embodiment. It is a perspective view for demonstrating the state at the time of storing the chemical | medical solution container with an injection needle which concerns on the said embodiment. It is a figure for demonstrating the other shape of the chemical | medical solution container with a syringe needle which concerns on the said embodiment. It is a figure for demonstrating the other shape of the chemical | medical solution container with a syringe needle which concerns on the said embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Chemical solution container with injection needle 2 Body part 3 Connection part 4 Injection needle part 5 Cover part 6 Connection piece 7 Hole part 8 Holding member 9, 11 Protrusion part 10 Operation piece

Claims (8)

A bellows-shaped body portion filled with a chemical solution, an injection needle portion capable of injecting the chemical solution into an injection target, and a tip portion of the injection needle portion are formed and separated from the injection needle portion. A cover part that forms a hole part through which the drug solution flows out in the injection needle part, and a connecting piece that connects the injection needle part and the cover part ;
The body part, the injection needle part, and the cover part are integrally formed, and the connection area between the connection piece and the injection needle part is smaller than the connection area between the connection piece and the cover part. Chemical container with needle. With needle drug solution container according to claim 1 Symbol placement wherein said that the hole is formed at a position other than the tip of the needle portion. The drug solution container with an injection needle according to claim 2 , wherein a plurality of the holes are formed. The drug body container with an injection needle according to any one of claims 1 to 3 , wherein the body part, the injection needle part, and the cover part are integrally formed by blow molding. The chemical solution container with an injection needle according to claim 4 , wherein the body portion is filled with the chemical solution during the blow molding. The medical solution container with an injection needle according to any one of claims 1 to 5 , further comprising a holding member that restricts expansion and contraction of the body part. The drug solution container with an injection needle according to claim 6 , wherein the type of the drug solution is displayed on the holding member. The drug solution container with an injection needle according to any one of claims 1 to 7 , wherein a regulating member that regulates expansion of the trunk part in a contracted state is provided on an inner wall of the trunk part.

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