JP2007007240A - Package container for indwelling needle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a package container for an indwelling needle which permits a connector to be stored separately from an outer needle and an inner needle and permits the connector to be taken out separately from the outer needle and the inner needle. <P>SOLUTION: The indwelling needle is composed of the outer needle 20 made of a cannula 21 and a housing 22, the inner needle 30 made of a metal needle 31 and a hub 32, and the connector 40 which can be connected to the housing 22 when the inner needle 30 is removed from the outer needle 20. The package container 10 to store the indwelling needle is comprised of an inner and outer needle storage portion 11 storing the assembled outer needle 20 and inner needle 30 and a connector storage portion 12 storing the connector 40. The inner and outer needle storage portion 11 and the connector storage portion 12 can be separately opened. The connector storage portion 12 is composed of a holding portion 15 holding the connector 40 by surrounding the tip side portion of a cylindrical communication portion and a connector lid portion 16. Furthermore, a channel communicating with the cylindrical communication portion is formed in the holding portion 15. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an indwelling needle packaging container for housing an indwelling needle to be placed in a blood vessel when hemodialysis or the like is performed.

Conventionally, treatments such as hemodialysis or supply of a predetermined drug solution or the like have been performed on a patient's blood vessel using an indwelling needle. Such an indwelling needle is accommodated in a predetermined packaging container, and is taken out by opening the packaging container when used (for example, refer to Patent Document 1). This packaging container is comprised by the plastic sheet in which the recessed part which accommodates an indwelling needle was formed, and the base material affixed on the edge of the plastic sheet. And the indwelling needle is accommodated in the space part formed with a recessed part and a mount, and in use, the indwelling needle in a recessed part is taken out by peeling a mount from the plastic sheet in a packaging container.
JP 2000-42108 A

  However, the indwelling needle includes an outer needle for indwelling in the patient's blood vessel, and an inner needle for smoothing the procedure of inserting the outer needle into the patient's blood vessel. There is something. In addition, such indwelling needles place the outer needle in the blood vessel together with the inner needle, and after extracting the inner needle from the outer needle (blood vessel), supply predetermined blood or chemicals to the rear end of the outer needle. A connector for connecting a tube member or the like is provided. When such an indwelling needle is accommodated in the above-described conventional packaging container, when the packaging container is opened, all of the accommodated outer needle, inner needle and connector are taken out. As a result, the problem that the hand touches the opening of the connector or the like during the predetermined treatment using the outer needle and the inner needle is likely to occur.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a packaging container for an indwelling needle in which a connector is accommodated separately from an outer needle and an inner needle and can be taken out separately from the outer needle and the inner needle. It is to provide.

  In order to achieve the above-mentioned object, the structural features of the packaging container of the indwelling needle according to the present invention include a cannula having a lumen and a space portion connected to the proximal end portion of the cannula and communicating with the lumen of the cannula inside. An outer needle including a housing provided with a metal needle, a metal needle that can be inserted into the outer needle with the distal end protruding from the distal end opening of the cannula, and a hub connected to the proximal end of the metal needle. The inner needle, a connecting portion that can be connected to the housing when the inner needle is removed from the outer needle, a cylindrical communicating portion that is inserted into the space of the housing and communicates with the lumen of the cannula, and is connected to an external device. An indwelling needle packaging container for housing an indwelling needle comprising a connector comprising a connecting portion, wherein the outer needle has a metal needle inserted into the outer needle and the inner needle attached to the outer needle. An inner / outer needle housing portion for housing the inner needle, and a connector And a connector accommodating portion for accommodating the over, the inner and outer needle accommodating part, lies in the the connector housing portion openable separately.

  A packaging container for an indwelling needle according to the present invention configured as described above is composed of an inner and outer needle accommodating portion that can be accommodated in a state where the outer needle and the inner needle are assembled, and a connector accommodating portion that accommodates a connector. It can be taken out of the packaging container separately from the outer needle and the inner needle. The indwelling needle composed of the outer needle, inner needle and connector is used in the order in which the outer needle is left in the blood vessel together with the inner needle, the inner needle is removed from the outer needle, and then the connector is assembled to the outer needle. . Therefore, the connector can be kept housed in the packaging container until the outer needle is left in the blood vessel and the inner needle is removed from the outer needle. This prevents the connector from being inadvertently soiled. In this case, the inner and outer needle housing portions and the connector housing portion may be formed integrally or may be configured separately.

  Further, another structural feature of the packaging container for an indwelling needle according to the present invention is a holding portion that holds the connector in a state in which the connector housing portion surrounds at least the tip opening side portion of the cylindrical communication portion of the connector. The connector lid portion is detachably coupled to the holding portion and covers the connection portion side portion of the connector.

  In the indwelling needle packaging container configured as described above, the cylindrical communication portion of the connector is surrounded by the holding portion, and the connector lid portion covers the connection portion side portion of the connector. The state communication part can be kept clean. Further, with the connector held in the holding portion, the connector lid portion can be opened to connect the external device to the connector connection portion. Also, according to this, until the connector is connected to the outer needle, the cylindrical communication part of the connector can be put in the holding part, and as soon as the inner needle is removed from the outer needle, An external device can be connected to the outer needle.

  Further, another structural feature of the packaging container for an indwelling needle according to the present invention is that it is used for air relief communicating with the cylindrical communication part in the vicinity of the part surrounding the cylindrical communication part in the holding part of the connector housing part. That is, the flow path is formed. According to this, with the connector held in the holding portion, the connector lid is opened, an external device is connected to the connector connection portion, and a small amount of liquid such as a chemical solution is supplied from the external device, thereby The air in the cylindrical communication part can be discharged to the outside, and the cylindrical communication part can be filled with liquid. According to this, when the connector is connected to the outer needle, since there is no air inside the connector, there is no possibility of accidentally injecting air into the blood vessel of the patient, and safety is improved.

  Furthermore, still another structural feature of the packaging container for an indwelling needle according to the present invention is that the inner and outer needle housing portions and the connector housing portion are detachably coupled. In this case, it is preferable that the inner and outer needle accommodating portions are constituted by an accommodating portion main body and inner and outer needle lid portions, and the inner and outer needle lid portions are detachably coupled to the connector accommodating portion. According to this, the inner / outer needle housing portion and the connector housing portion can be assembled in a compact manner. Further, the outer needle and the inner needle can be taken out by removing the connector housing portion together with the inner and outer needle lid portions from the housing portion main body of the inner and outer needle housing portions. Then, after puncturing the patient's blood vessel with the outer needle and the inner needle and removing the inner needle from the outer needle, the connector can be taken out from the connector housing portion. As a result, each member can be taken out according to the order of use.

  Hereinafter, a packaging container for an indwelling needle according to the present invention will be described in detail with reference to the drawings. FIG. 1 shows an indwelling needle set A configured by housing an indwelling needle to be placed in a patient's blood vessel in the packaging container 10 according to the embodiment. That is, the indwelling needle set A includes a packaging container 10, an outer needle 20 that is inserted into a blood vessel of a patient, an inner needle 30 having a tip portion that can be inserted into the outer needle 20, and a rear end portion of the outer needle 20. And an indwelling needle is constituted by the outer needle 20, the inner needle 30 and the connector 40.

  As shown in FIGS. 2 to 4, the packaging container 10 includes an inner / outer needle housing portion 11 and a connector housing portion 12. The inner / outer needle housing portion 11 houses the outer needle 20 and the inner needle 30 assembled as shown in FIG. 5, and the connector housing portion 12 houses the connector 40 shown in FIG. The inner / outer needle accommodating portion 11 is detachably attached to the accommodating portion main body 13 formed of a long cylindrical container with one end closed, and the other end opening of the accommodating portion main body 13. It comprises a cap-shaped inner and outer needle lid portion 14 having a long axial length for opening and closing the opening.

  The other end side portion of the accommodating portion main body 13 is formed to be thick so that the outer diameter becomes large, and a plurality of anti-slip protrusions 13a extending in the axial direction on the outer peripheral surface of the accommodating portion main body 13 keep a constant interval around the axis. Is formed. Moreover, the opening part on the other end side of the accommodating part main body 13 is comprised by the cylindrical insertion engaging part 13b formed thinly so that an internal diameter might become large. An insertion recessed portion 14 a that engages the inner and outer needle lid portions 14 with the accommodating portion main body 13 by inserting the insertion engaging portion 13 b is formed at one end portion of the inner and outer needle lid portions 14. For this reason, the inner and outer needle lid portions 14 can be attached to and detached from the housing portion main body 13 by engaging the insertion engaging portion 13b with the insertion recessed portion 14a. In addition, a thin cylindrical insertion engaging portion 14 b is formed at the other end of the inner and outer needle lid portions 14.

  The connector housing portion 12 is detachably attached to a holding portion 15 made of a cylindrical container with one end closed and a short axial length, and the other end opening of the holding portion 15. A cap-shaped connector lid portion 16 having a short axial length for opening and closing the end opening is formed. An insertion recessed portion 15 a for engaging the holding portion 15 with the inner and outer needle lid portions 14 by inserting the insertion engaging portion 14 b is formed at one end portion of the holding portion 15. The holding part 15 can be attached to and detached from the inner / outer needle cover part 14 by engaging the insertion engaging part 14b with the insertion recessed part 15a.

  In addition, a thin cylindrical insertion engaging portion 15 b is formed at the other end of the holding portion 15. The inner side of the holding portion 15 is formed with a conical concave portion 15c tapered toward the inner side of the insertion engaging portion 15b, and a cylindrical holding hole is formed at the inner end of the concave portion 15c. 17 is formed. Further, as shown in FIG. 7, four air escape channels 18 having a fan-shaped cross section are formed around the holding hole 17 at intervals around the axis. One end of the channel 18 is closed and the other end communicates with the recess 15c. Further, the flow path 18 communicates with the holding hole 17.

  At one end portion of the connector lid portion 16, an insertion recessed portion 16 a for engaging the connector lid portion 16 with the holding portion 15 by inserting the insertion engagement portion 15 b is formed. For this reason, the connector lid part 16 can be attached to and detached from the holding part 15 by engaging the insertion engaging part 15b with the insertion recessed part 16a. A plurality of anti-slip protrusions 16b extending in the axial direction are formed on the outer peripheral surface of the connector lid 16 at a constant interval in the axial direction. The packaging container 10 configured in this way accommodates the outer needle 20 and the inner needle 30 in an assembled state in the housing portion main body 13 and the inner and outer needle lid portions 14 so as to be freely inserted and removed, The connector 40 is accommodated in the connector lid 16 so as to be freely inserted and removed. Then, by assembling the inner and outer needle lid portions 14 and the holding portion 15, they can be integrated.

  As shown in FIG. 8, the outer needle 20 includes a thin cannula 21 and a housing 22 connected to a proximal end portion (a rear end portion located on the right side in the drawing) of the cannula 21. The housing 22 is formed at the center of the housing main body 22a constituting the main body portion of the housing 22, the connecting portion 22b connecting the cannula 21 and the housing main body 22a, and the rear end of the housing main body 22a. The connection part 22c for connecting the connector 40 to the needle | hook 20 is comprised.

  The cannula 21 is placed in a patient's blood vessel to take out blood from the blood vessel or supply a drug solution or the like to the blood vessel. The connecting portion 22b is formed in a tapered cylindrical shape with a thin front end, the rear end portion of the cannula 21 is connected to the small diameter side front end portion, and the housing main body 22a is connected to the large diameter side rear end portion. Yes. The housing main body 22a is connected to the connection portion 22b so as to cover the outer periphery of the rear end portion of the connection portion 22b, and the inner periphery of the rear end portion is a flange shape whose inner diameter is set to be substantially the same as the inner diameter of the connection portion 22b. The protrusion 23 is formed. A filter 24 and a valve body 25 are provided side by side between the rear end surface of the connection portion 22b and the protrusion 23 inside the housing body 22a.

  The filter 24 is formed by forming a hydrophobic material into a ring shape, and has a property of allowing a gas such as air to pass through but not a liquid such as blood. The valve body 25 is made of isoprene rubber having elasticity, and an opening / closing hole 25a is formed in a portion along the central axis. Although the opening / closing hole 25a is normally kept closed, as shown in FIGS. 1 and 5, when the inner needle 30 is inserted into the outer needle 20, or as will be described later, the outer needle 20 When the connector 40 is inserted into the distal end, the distal end side insertion portion of the inner needle 30 and the distal end side insertion portion of the connector 40 can be liquid-tightly passed. In addition, a gas passage 26 is formed at the boundary between the housing body 22a and the connection portion 22b to discharge the gas that has passed through the filter 24 from the inside of the connection portion 22b to the outside.

  The connecting portion 22c is formed in a cylindrical shape having a short axial length whose inner diameter is set to be approximately the same as the outer diameter of the housing body 22a. And the guide groove 27 extended in the center side along the axial direction of the connection part 22c from the rear-end edge part of the connection part 22c is formed in the upper part and the lower part of the connection part 22c, respectively, and the back end part of the guide groove 27 is formed. An engagement hole 28 is formed. The guide groove 27 is formed such that the rear end side is wider and gradually decreases toward the front end side, and the engagement hole 28 has a diameter larger than the width of the narrowest portion 27a of the guide groove 27. It is composed of a substantially circular hole.

  As shown in FIG. 9, the inner needle 30 includes a stainless steel metal needle 31, a hub 32 fixed to a base end side portion of the metal needle 31 (a rear end located on the right side in the drawing), and a hub 32. And a plug 33 that is detachably attached to the rear end portion. The metal needle 31 is made of a thin tubular injection needle, and is composed of a pointed portion formed with an end portion 31a inclined with respect to the axial direction. Further, a step portion 31b is formed in the rear end portion of the metal needle 31 slightly from the front end portion 31a, and the diameter on the front end side is slightly larger than the diameter on the rear end side across the step portion 31b. Is set to The metal needle 31 is used to smoothly insert the distal end portion of the cannula 21 into the patient's blood vessel. The metal needle 31 is inserted from the rear end portion of the outer needle 20 and the valve body 25 is inserted. The distal end portion 31a is projected from the distal end opening of the cannula 21 through the open / close hole 25a.

  The hub 32 is a portion that functions as a grip portion for holding the inner needle 30, and is fixed to the metal needle 31 so as to cover the outer peripheral portion of the rear end portion of the metal needle 31. The hub 32 is located in the center portion and has a hub main body 32a for fixing the metal needle 31, and a cylindrical shape formed on the front side of the hub main body 32a with a predetermined distance from the peripheral surface of the metal needle 31. The housing part 32b and the cylindrical plug attachment part 32c provided with the recessed part formed in the rear part side of the hub main body 32a and opened toward back are comprised. A flange-shaped flange 32d is formed on the peripheral edge of the front end of the accommodating portion 32b.

  The plug 33 is used as a lid for opening and closing the opening of the plug attachment portion 32c, and a cylindrical plug portion 33a that can be detachably pushed into the recess of the plug attachment portion 32c, and a plug portion 33a. It is comprised by the holding part 33b provided with the recessed part fixed to the edge part and opening toward back. And the filter 33c made from a cellulose is provided in the back end part in the recessed part of the holding part 33b. The filter 33c is configured to allow air to pass but not blood.

  The outer needle 20 and the inner needle 30 configured in this way are assembled as shown in FIG. 5 before use, and at that time, at the boundary between the outer needle 20 and the inner needle 30. A needle point protector 35 is installed. The needle tip protector 35 is configured as shown in FIG. 10, and includes a cylindrical box-shaped spring accommodating portion 36 that can be inserted into the connecting portion 22 c of the outer needle 20 and an inner portion 32 b of the inner needle 30. And a cylindrical insertion portion 37 that can be inserted into the housing. A locking portion 36 a is provided at a portion slightly below the center in the vertical direction in the spring accommodating portion 36, and a protruding hole 36 b is provided on the upper surface of the spring accommodating portion 36. In addition, an insertion hole 36c through which the metal needle 31 can be inserted is provided at the approximate center of the front surface of the spring accommodating portion 36.

  Further, between the locking portion 36a in the spring accommodating portion 36 and the upper surface portion of the spring accommodating portion 36, the elevating platform 38a, extending upward from the center of the upper surface of the elevating platform 38a and extending outward from the projecting hole 36b. An elevating member 38 comprising a protruding bar 38b that can be protruded is provided. And the stainless steel coil spring 39 is attached to the outer periphery of the protrusion bar 38b. The diameter of the coil spring 39 is set larger than the diameter of the projecting hole 36b, and cannot protrude from the projecting hole 36b. Therefore, when the lifting platform 38a is moved upward, the projecting bar 38b projects outward from the projecting hole 36b, and the coil spring 39 contracts against the force that moves the lifting platform 38a upward.

  Further, an insertion hole 37 a having an inner diameter set to be substantially equal to the outer diameter of the distal end portion of the metal needle 31 is formed inside the insertion portion 37. A small diameter portion 37b having a slightly smaller inner diameter is formed at the rear end portion of the insertion hole 37a, and the step formed at the end of the small diameter portion 37b is associated with the step portion 31b of the metal needle 31. Is possible. The insertion hole 37a communicates with the insertion hole 36c through a space in the spring accommodating portion 36. The needle tip protector 35 thus configured is assembled to the inner needle 30 in a state where the metal needle 31 is inserted through the insertion holes 37a and 36c and the insertion portion 37 is inserted into the housing portion 32b. At that time, the needle tip protector 35 is connected to the connecting portion 22c of the outer needle 20 in a state where the elevating member 38 is pushed upward by the metal needle 31 and the protruding bar 38b is engaged in the engagement hole 28 of the housing 22. Installed inside. The needle tip protector 35 is maintained in a fixed state in the housing 22 by the engagement between the protruding bar 38 b and the engagement hole 28.

  As shown in FIG. 6, the connector 40 includes a base tube 41, a small-diameter cylindrical communication portion 42 extending forward from the distal end portion of the base tube 41, and forward and downward portions of the outer peripheral portion of the distal end of the base tube 41. A pair of engaging protrusions 43 that extend and a pair of elastic guide portions 44 that extend forward from the left and right portions of the outer periphery of the distal end of the base tube 41 are configured. The connector 40 is connected to an external tube member 46 (see FIG. 11) or the like, and is used to send a chemical solution or the like supplied from the tube member 46 or the like to the outer needle 20. Is formed with a threaded portion 41a as a connecting portion of the present invention for connecting end portions of the tube member 46 and the like.

  The cylindrical communication portion 42 is configured by a stepped tube having a uniform inner diameter, a large outer portion 42a on the base tube 41 side, and a small insertion portion 42b on the distal end side. The valve body 25 can be inserted into the opening / closing hole 25a in a liquid-tight manner. In addition, the engaging protrusion 43 is a thin plate-like flexible piece 43a having elasticity extending from the outer periphery of the distal end of the base tube 41, and a short columnar shape protruding from the outer surface of the flexible piece 43a toward the outside. The engaging projection 43b. A columnar pressing portion 45 formed with a diameter smaller than that of the engagement protrusion 43b protrudes outward from the center portion of the end surface of the engagement protrusion 43b. Further, the elastic guide portion 44 is formed of a rectangular thin plate extending from the outer peripheral portion of the distal end of the base tube 41.

  The connector 40 is connected to the housing 22 with the insertion part 42b inserted into the opening / closing hole 25a of the valve body 25 and the flexible piece 43a and the elastic guide part 44 inserted into the connection part 22c. At that time, the engagement protrusion 43b engages with the engagement hole 28, and the pressing portion 45 protrudes to the outside of the coupling portion 22c. Further, when the connector 40 is attached to the housing 22 or when the connector 40 is removed from the housing 22, the pressing portion 45 is pushed to the inner side of the connecting portion 22c, and the engaging protrusion 43b is positioned to the inner side of the connecting portion 22c. . Accordingly, since the thickness of the pressing portion 45 is smaller than the width of the narrowest portion 27a of the guide groove 27, the pressing portion 45 can move in the guide groove 27, and the connector 40 can be attached to and removed from the housing 22. It becomes possible.

  The engaging protrusion 43, the elastic guide portion 44, and the pressing portion 45 constitute a connecting portion according to the present invention. The packaging container 10 constituting the indwelling needle set A is made of polystyrene, the outer needle 20, the portion other than the metal needle 31 of the inner needle 30, the portion other than the coil spring 39 of the needle tip protector 35, and the connector 40 are: Consists of transparent or translucent polypropylene. The hub 32 of the inner needle 30 is made of a transparent material so that it can be confirmed when blood enters the inside through the metal needle 31.

  In this configuration, when an indwelling needle is used, first, the relationship between the insertion engaging portion 14b of the inner / outer needle lid portion 14 and the insertion recessed portion 15a of the holding portion 15 in the indwelling needle set A in the state shown in FIG. The inner / outer needle housing part 11 and the connector housing part 12 are separated from each other. Further, the engagement between the insertion engaging portion 15b and the insertion recessed portion 16a is released, and the connector lid portion 16 is removed from the holding portion 15 of the connector housing portion 12 to obtain the state shown in FIG.

  Next, as shown in FIG. 13, the tube member 46 is connected to the connector 40 by connecting the connecting portion 47 of the tube member 46 to the screw portion 41 a of the connector 40 held in the holding portion 15. Then, a supply device for a chemical solution or the like connected to the tube member 46 is operated to supply a small amount of the chemical solution or the like to the connector 40. As a result, the air in the cylindrical communication portion 42 of the connector 40 is discharged from the holding hole 17 and the flow path 18 to the outside of the holding portion 15, and the inside of the cylindrical communication portion 42 is filled with the chemical solution.

  Next, the engagement between the insertion engaging portion 13b and the insertion recessed portion 14a is released, the inner and outer needle lid portions 14 are removed from the accommodating portion main body 13, and the state shown in FIG. Then, the outer needle 20 and the inner needle 30 in the combined state are taken out to be in the state shown in FIG. Then, the tip of the cannula 21 is punctured into the patient's arm, for example, together with the tip 31a of the metal needle 31 to reach the blood vessel. As a result, blood in the blood vessel enters the metal needle 31 and enters the hub body 32 a of the hub 32. As a result, since the color of the hub 32 becomes red, it can be confirmed that the distal end portion 31a of the metal needle 31 has reached the blood vessel. At this time, the air in the metal needle 31 is pushed into the rear end side in the metal needle 31 by blood, passes through the filter 33c, and is discharged to the outside.

  Next, the inner needle 30 is pulled toward the rear side of the outer needle 20 while the outer needle 20 is left in the patient's blood vessel. As a result, the insertion portion 37 of the needle tip protector 35 is removed from the housing portion 32b of the inner needle 30, and the metal needle 31 is removed while sliding on the peripheral surfaces of the opening / closing hole 25a of the valve body 25 and the insertion hole 37a of the insertion portion 37. Retreat from the needle 20. Further, the inner needle 30 is pulled toward the rear side of the outer needle 20, and when the distal end portion 31 a of the metal needle 31 passes through the spring accommodating portion 36 of the needle tip protector 35, it is lifted and lowered by the restoring force of the coil spring 39. The member 38 is lowered, and the engagement between the protruding bar 38b and the engagement hole 28 is released.

  As a result, the needle tip protector 35 becomes movable, and the needle tip is engaged by the engagement between the step portion 31b of the metal needle 31 and the step formed at the end of the small diameter portion 37b of the insertion hole 37a of the insertion portion 37. The protector 35 comes out of the housing 22 together with the metal needle 31 to be in the state shown in FIG. 16 (in this case, the connector 40 is still held in the holding portion 15). In this case, the metal needle 31 passes through the inside of the opening / closing hole 25a of the valve body 25, but the metal needle 31 and the inner peripheral surface of the opening / closing hole 25a are in close contact with each other. Blood does not leak out from 25a. In addition, after the inner needle 30 is extracted from the outer needle 20, the opening / closing hole 25 a is in a closed state, so that blood is not discharged from the rear end portion of the housing 22.

Next, the connector 40 is removed from the holding portion 15, and the connector 40 is inserted into the housing 22 to obtain the state shown in FIG. In this case, the connector 40 is pushed into the housing 22 with both pressing portions 45 of the connector 40 being pressed. Then, a chemical solution supply device connected to the tube member 46 is operated to supply the chemical solution or the like into the blood vessel. As described above, the indwelling needle set A including the indwelling needle and the packaging container 10 is used.

  As described above, the packaging container 10 for the indwelling needle is composed of the inner / outer needle housing portion 11 for housing the outer needle 20 and the inner needle 30 in an assembled state, and the connector housing portion 12 for housing the connector 40. 40 can be taken out separately from the outer needle 20 and the inner needle 30. Further, the distal end portion of the cylindrical communication portion 42 of the connector 40 is surrounded by the holding portion 15, and the connector lid portion 16 is configured to cover the screw portion 41 a side portion of the connector 40.

  For this reason, the cylindrical communication part 42 of the connector 40 can be put in the holding part 15 until immediately before the connector 40 is connected to the outer needle 20, and immediately after the inner needle 30 is removed from the outer needle 20. The connector 40 can be removed from the holding portion 15 and connected to the outer needle 20. This can prevent the connector 40 from being inadvertently soiled. In addition, since the connector lid 16 can be opened and the tube member 46 can be connected to the threaded portion 41a of the connector 40 while the connector 40 is held by the holding portion 15, the connector lid 16 can be opened. The cylindrical communication part 42 can be maintained in a clean state.

  Further, an air escape channel 18 is formed around the holding hole 17 that holds the cylindrical communication portion 42. For this reason, with the connector 40 held by the holding portion 15, the connector lid portion 16 is opened and the tube member 46 is connected to the screw portion 41 a of the connector 40, and a small amount of chemical solution or the like is passed through the tube member 46. By supplying, the air in the cylindrical communication part 42 can be discharge | released outside, and the chemical | medical solution etc. can be filled into the cylindrical communication part 42 previously. According to this, when the connector 40 is connected to the outer needle 20, since there is no air inside the connector 40, air is not accidentally put into the patient's blood vessel, and safety is improved. Further, since the inner / outer needle cover portion 14 of the inner / outer needle housing portion 11 and the holding portion 15 of the connector housing portion 12 are detachably coupled, the inner / outer needle housing portion 11 and the connector housing portion 12 can be assembled in a compact manner. .

  Moreover, the packaging container of the indwelling needle which concerns on this invention is not limited to embodiment mentioned above, It can implement by changing suitably. For example, in the above-described embodiment, the inner / outer needle accommodating portion 11 and the connector accommodating portion 12 are detachable, but the main body portion of the inner / outer needle accommodating portion and the connector accommodating portion are integrally formed to form two accommodating portions. It can also be comprised with the cylindrical body provided with. In this case, a partition wall can be provided inside the cylindrical body to form two accommodating portions, and both end sides can be opened, and lid portions can be attached to the openings. Further, the inner and outer needle lid portions 14 of the inner and outer needle housing portions 11 and the holding portion 15 of the connector housing portion 12 can be integrally formed.

  Further, in the above-described embodiment, the outer needle 20, the portion other than the metal needle 31 of the inner needle 30, the portion other than the coil spring 39 of the needle tip protector 35, and the connector 40 are made of polypropylene. The material to be used can be changed as appropriate. For example, the housing 22, the hub 32, and the connector 40 can be formed using materials such as polycarbonate, polyurethane, nylon, silicone resin, polyetherimide, polyetheretherketone, ABS resin, and polyethylene.

  The cannula 21 can be formed using a material such as fluororesin or polyurethane. Further, the valve body 25 can be formed using a material such as silicone resin, polyvinyl chloride, or polyurethane, and the coil spring 39 is formed using a material such as titanium, polyether ether ketone, or polycarbonate. be able to. Furthermore, the indwelling needle set according to the present invention can be used not only for blood vessels but also for parts of the body such as renal pelvis and bladder.

It is sectional drawing which showed the state which accommodated the indwelling needle which concerns on one Embodiment of this invention in the packaging container. It is a front view of a packaging container. It is sectional drawing of a packaging container. FIG. 4 is an exploded view of the packaging container shown in FIG. 3. It is sectional drawing which showed the state which assembled | attached the outer needle and the inner needle. The connector is shown, (a) is a top view, (b) is a side view, (c) is 6-6 sectional drawing of (a). It is 7-7 sectional drawing of FIG. It is sectional drawing which showed the outer needle. It is sectional drawing which showed the inner needle. It is sectional drawing which showed the connector. It is sectional drawing which showed the state which connected the tube member to the connector. FIG. 2 is a cross-sectional view showing a state in which the inner and outer needle accommodation portions and the connector accommodation portion shown in FIG. 1 are separated and the connector lid portion is removed from the holding portion of the connector accommodation portion. It is sectional drawing which showed the state which connected the tube member to the connector hold | maintained at the holding | maintenance part. It is sectional drawing which showed the state which removed the inner and outer needle cover part from the accommodating part main body of the inner and outer needle accommodating part shown in FIG. It is sectional drawing which showed the state which took out the outer needle and the inner needle from the accommodating part main body of the inner / outer needle accommodating part shown in FIG. It is sectional drawing which showed the state which pulled out the inner needle from the outer needle. It is sectional drawing which showed the state which connected the tube member to the outer needle via the connector.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Packaging container, 11 ... Inner / outer needle accommodation part, 12 ... Connector accommodation part, 13 ... Housing part main body, 14 ... Inner / outer needle lid part, 15 ... Holding part, 16 ... Connector lid part, 17 ... Holding hole, 18 ... Flow Road, 20 ... outer needle, 21 ... cannula, 22 ... housing, 30 ... inner needle, 31 ... metal needle, 31a ... tip, 32 ... hub, 40 ... connector, 41a ... screw part, 42 ... cylindrical communication part, 43 ... engaging protrusion, 43a ... flexible piece, 43b ... engaging protrusion, 44 ... elastic guide part, 45 ... pressing part, 46 ... tube member.

Claims (5)

An outer needle comprising a cannula having a lumen, and a housing connected to a proximal end portion of the cannula and provided with a space portion communicating with the lumen of the cannula.
An inner needle composed of a metal needle that can be inserted into the outer needle in a state in which the distal end portion protrudes from the distal end opening of the cannula, and a hub connected to the proximal end portion of the metal needle;
When the inner needle is removed from the outer needle, a connecting portion that can be connected to the housing, a cylindrical communicating portion that is inserted into the space of the housing and communicates with the lumen of the cannula, and connected to an external device An indwelling needle packaging container for housing an indwelling needle comprising a connector formed of a connecting portion,
An inner / outer needle housing portion for housing the outer needle and the inner needle in a state in which the metal needle is inserted into the outer needle and the inner needle is attached to the outer needle; and a connector housing portion for housing the connector; A container for indwelling needles, wherein the inner and outer needle accommodating portions and the connector accommodating portion can be opened separately.   A connector holding portion that holds the connector in a state of surrounding at least a tip opening side portion of the cylindrical communication portion of the connector, and a connector connecting portion that is detachably coupled to the holding portion. The indwelling needle packaging container according to claim 1, comprising a connector lid portion that covers a side portion.   The indwelling needle packaging container according to claim 2, wherein an air escape passage communicating with the cylindrical communication portion is formed in the vicinity of a portion surrounding the cylindrical communication portion in the holding portion of the connector housing portion.   The indwelling needle packaging container according to any one of claims 1 to 3, wherein the inner and outer needle housing portions and the connector housing portion are detachably coupled. The indwelling needle packaging container according to claim 4, wherein the inner / outer needle housing part is constituted by a housing body and an inner / outer needle lid part, and the inner / outer needle lid part is detachably coupled to the connector housing part.

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