JP2012055601A - Connection assisting implement, and catheter device equipped with the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connection assisting implement which can easily and surely connect an injection implement with the end section of a spital holder tube in which a wire is housed, or the proximal end section of a catheter as the wire housed in the holder tube, and to provide a catheter device which is equipped with the connection assisting implement.SOLUTION: The catheter device 10 includes: the catheter 16 having a shaft section 28 with flexibility; the spiral holder tube 12 in which the catheter 16 has been housed; a holder hub 14 which is installed on the end section of the holder tube 12; and the plate-like connection assisting implement 36. The connection assisting implement 36 is used when a syringe 26 is connected with a catheter hub 32 or the holder hub 14 located at the proximal end section of the catheter 16. On the holding surface 46 of the connection assisting implement 36, folding line sections 42, 44a and 44b which are bent into a valley form are formed. Thus, the connection assisting implement 36 can be warp-deformed in such a manner that the holding surface 46 may become a protruding surface, and also, can maintain the warped shape.

Description

  The present invention connects an infusion device for fluid injection to the end of a spiral holder tube containing a flexible wire or the proximal end of a catheter as the wire housed in the holder tube The present invention relates to a connection assisting tool used when performing the above and a catheter device including the same.

  The catheter is used to insert a therapeutic tip or a diagnostic contrast agent into a living organ such as a blood vessel so that the distal end of the catheter reaches a target site. Prior to use, the catheter is generally housed in a spirally wound holder tube, and is pulled out of the holder tube during use. Prior to the use of such a catheter, it is necessary to perform priming of the holder tube described below.

  When the surface of the shaft portion of the catheter is coated with a hydrophilic coat for the purpose of obtaining lubricity in the living organ of the catheter, the inner surface of the holder tube and the surface of the shaft portion may stick to each other.

  For this reason, prior to pulling out the catheter from the holder tube, a priming is performed in which an injection tool is connected to a holder hub provided at an end of the holder tube, and physiological saline is injected into the holder tube to soak the catheter. Priming the holder tube). Such priming is also performed when a guide wire is used instead of a catheter (see, for example, Patent Document 1).

  Further, if the catheter lumen is not sufficiently wet, there is a concern that the operability of the guide wire may be hindered, and there is a concern that air is sent into the patient's body and an air embolism occurs. For this reason, an infusion device is connected to the catheter hub located at the proximal end of the catheter, and priming (catheter priming) for injecting physiological saline or the like to wet the catheter lumen is performed.

JP 2006-346075 A

  By the way, for example, when a catheter is housed in a spiral holder tube, it is desirable to arrange the spiral holder tube, the holder hub, and the catheter hub on the same plane in order to make the shape compact.

  In this case, the opening of the holder hub (connection port with the injection tool) and the opening of the catheter hub (connection port with the injection tool) are located on the same plane as the holder tube.

  Therefore, for example, when the tip of the injection tool is to be connected to the opening of the holder hub (catheter hub) in a state where the holder tube is mounted on the mounting table, the injection tool may hit the mounting table. As a result, it becomes difficult to connect the tip of the injection tool to the opening of the holder hub (catheter hub), which may result in poor connection.

  Further, since the opening of the holder hub is directed to the adjacent tube, the injection tool may hit the tube when the tip of the injection tool is connected to the opening of the holder hub. In this case, it becomes more difficult to connect the tip of the injection tool to the opening of the holder hub.

  In order to solve such a problem, for example, an operator or the like directly lifts the holder hub with his hand and places the tip of the injection tool in the opening with the opening of the holder hub facing obliquely upward. Need to connect.

  The present invention has been made in consideration of such problems, and the end of a spiral holder tube in which a wire is accommodated, or the proximal end of a catheter as the wire accommodated in the holder tube. It is an object of the present invention to provide a connection aid capable of easily and surely connecting an injection tool to a section, and a catheter device including the same.

  The invention specified in claim 1 of the present application is the end of a spiral or wound holder tube in which a flexible wire is accommodated, or the catheter as the wire accommodated in the holder tube. A connection aid used when connecting an infusion device for fluid injection to a base end, wherein the connection aid is a plate-like assist that contacts the end of the holder tube or the base of the catheter. A holding surface that can hold the holder tube or the catheter, wherein one surface of the auxiliary tool body is provided with a locking part that is provided on the auxiliary tool body and can be locked to the holder tube. The auxiliary tool main body is configured to be warp-deformable so that the holding surface becomes a convex surface, and to be able to maintain the warped shape of the holding surface.

  According to the invention specified in claim 1 of the present application, the holder tube (the holding tube) is attached to one surface (holding surface) of the auxiliary tool body by locking the locking portion of the connection auxiliary tool to the holder tube. End) can be held. Then, the auxiliary tool body is warped and deformed so that the holding surface becomes a convex surface, and the warp shape of the holding surface is maintained, so that the direction of the opening (connecting port with the injection tool) of the end of the holder tube is changed. It can be changed. Thereby, even when the holder tube is arranged on the same plane, when the injection tool is connected to the end of the holder tube, the injection tool hits an adjacent tube or mounting table. This can be suitably suppressed.

  Further, when a catheter is used as the wire, a part of the catheter is accommodated in the holder tube, so that the catheter (catheter of the catheter) is held on the holding surface by locking the locking portion of the connection aid to the holder tube. The proximal end) can be held. Thereby, the auxiliary tool body is warped and deformed so that the holding surface becomes a convex surface, and the warping shape of the holding surface is maintained, whereby the opening of the proximal end portion of the catheter (connection port to the injection device) is oriented. Can be changed. Therefore, even when the holder tube and the proximal end portion of the catheter are arranged on the same plane, when the injecting device is connected to the proximal end portion of the catheter, the injecting device hits a mounting table or the like. This can be suitably suppressed. Accordingly, it is possible to easily and reliably connect the injection tool to the end portion of the holder tube or the proximal end portion of the catheter as a wire housed in the holder tube.

  In the present invention, the wire includes both a guide wire and a catheter.

  The invention specified in claim 2 of the present application is characterized in that, in the connection aid according to claim 1, the holding surface is formed with a first fold portion bent in a valley shape. .

  According to the invention specified in claim 2 of the present application, since the first fold portion is bent in a valley shape, the warp shape is suitably maintained by warping and deforming the first fold portion. can do.

  The invention specified in claim 3 of the present application is the connection aid according to claim 2, wherein the holding surface includes both sides of an extension line of the first fold portion from one end portion of the first fold portion. And a pair of second fold portions bent in a valley shape are formed.

  According to the invention specified in claim 3 of the present application, the holding force of the warped shape of the holding surface can be increased by forming the pair of second fold portions on the holding surface.

  The invention specified in claim 4 of the present application is the connection aid according to claim 3, wherein the holding surface includes both sides of an extension line of the first fold portion from the other end portion of the first fold portion. A pair of third folds extending in the direction and bent in a valley shape are formed.

  According to the invention specified in claim 4 of the present application, the holding force of the warped shape of the holding surface can be further increased by forming the pair of third fold portions on the holding surface.

  The invention specified in claim 5 of the present application is characterized in that, in the connection auxiliary tool according to any one of claims 1 to 4, the auxiliary tool main body is made of a resin material.

  According to the invention specified in claim 5 of the present application, since the auxiliary tool body is made of a resin material, the auxiliary tool body can be suitably warped and deformed.

  The invention specified in claim 6 of the present application is a guide wire having flexibility, a spiral or wound holder tube in which the guide wire is accommodated, and an auxiliary connection provided at an end of the holder tube. The connection assistance tool is the connection assistance tool according to any one of claims 1 to 5.

  According to the invention specified in claim 6 of the present application, the injection device can be easily and reliably connected to the end portion of the holder tube, and the catheter device can be configured compactly. Moreover, the same effect as the invention specified in claims 2 to 5 of the present application described above can be obtained.

  The invention specified in claim 7 of the present application includes a flexible catheter, a spiral or wound holder tube in which the catheter is accommodated, and an end of the holder tube or a proximal end of the catheter. A connection assisting tool provided on the connection assisting tool, wherein the connection assisting tool is the connection assisting tool according to any one of claims 1 to 5.

  According to the invention specified in claim 7 of the present application, the injection tool can be easily and reliably connected to the end of the holder tube or the proximal end of the catheter accommodated in the holder tube, The catheter device can also be configured compactly. Moreover, the same effect as the invention specified in claims 2 to 5 of the present application described above can be obtained.

  As described above, according to the present invention, the locking portion of the connection auxiliary tool is locked to the holder tube, the auxiliary tool body is warped and deformed so that the holding surface becomes a convex surface, and the warping shape of the holding surface is changed. By maintaining, the direction of the opening of the end of the holder tube or the opening of the proximal end of the catheter accommodated in the holder tube can be changed. Therefore, the injection tool can be easily and reliably connected to the end portion of the holder tube or the proximal end portion of the catheter.

1 is an overall configuration diagram of a catheter device according to a first embodiment of the present invention. It is a top view of the connection auxiliary tool shown in FIG. It is A view of FIG. It is sectional drawing along the IV-IV line of FIG. It is an enlarged plan view which shows the state which mounted | wore the connection tube with the edge part by which the holder hub is located among the holder tubes shown in FIG. 6A is a perspective view of FIG. 5, and FIG. 6B is a perspective view showing a state where the connection aid is warped and deformed. 7A is a partial cross-sectional view taken along line VIIA-VIIA in FIG. 6A, and FIG. 7B is a partial cross-sectional view taken along line VIIB-VIIB in FIG. 6B. 8A is a view from B in FIG. 7A, and FIG. 8B is a view from C in FIG. 7B. It is a whole block diagram of the catheter apparatus which concerns on the modification of 1st Embodiment. It is a top view of the connection auxiliary tool concerning the modification of a 1st embodiment. It is sectional drawing along the XI-XI line of FIG. It is sectional drawing along the XII-XII line | wire of FIG. It is an enlarged plan view which shows the state which mounted | wore the edge part by which the holder hub is located among the said holder tubes in the connection auxiliary tool which concerns on the said modification. 14A is a perspective view of FIG. 13, and FIG. 14B is a perspective view showing a state in which the connection aid according to the modified example is warped and deformed. 15A is a partial cross-sectional view taken along line XVA-XVA in FIG. 14A, and FIG. 15B is a partial cross-sectional view taken along line XVB-XVB in FIG. 14B. 16A is a view from D in FIG. 15A, and FIG. 16B is a view from E in FIG. 15B. It is a whole block diagram of the catheter apparatus which concerns on 2nd Embodiment of this invention. It is an enlarged plan view which shows the state which mounted | wore the connection auxiliary tool in the edge part by which the strain relief part is located among the holder tubes shown in FIG. It is an enlarged plan view which shows the state which mounted | wore the connection auxiliary tool which concerns on the modification of 2nd Embodiment in the edge part by which the strain relief part is located among the said holder tubes.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a connection aid according to the present invention and a catheter device including the connection aid will be described in detail with reference to the accompanying drawings by giving preferred embodiments.

(First embodiment)
First, the basic structure of the catheter device 10 according to the first embodiment of the present invention will be described. As shown in FIG. 1, a catheter device 10 includes a long holder tube 12 formed in a cylindrical shape, a holder hub 14 provided at one end of the holder tube 12, and a catheter held by the holder tube 12. 16.

  The holder tube 12 is made of a highly slidable resin or the like, and is wound in a spiral shape a plurality of times (in this embodiment, twice). The number of windings of the holder tube 12 can be arbitrarily set based on its length, outer diameter, and the like.

  Adjacent tubes of the holder tube 12 are fixed by a plurality (four in this embodiment) of fixtures 20, 22, 24, and 25 while being positioned on the same plane. The structure of the fixtures 20, 22, 24, 25 is the same as that of the prior art. Although not shown, the fixtures 20, 22, 24, and 25 are made of resin and have a plurality of holes to hold the holder tube 12 to be wound. Thereby, the spiral shape (winding shape) of the holder tube 12 can be held with good balance. Note that the fixtures 20, 22, 24, and 25 are configured to be detachable from the holder tube 12.

  The length of the holder tube 12 is set to be longer than the length of a shaft portion 28 described later constituting the catheter 16, and the inner diameter of the holder tube 12 is set to be larger than the outer diameter of the shaft portion 28.

  The holder hub 14 is configured in a cylindrical shape, and the distal end of a syringe (injection tool) 26 can be connected to the opening 14a on the distal end side (insertable, fitable, attachable).

  The catheter 16 is used for improving or diagnosing a lesion formed in a living organ (for example, a blood vessel, a bile duct, a trachea, an esophagus, a urethra, and other organs), and is accommodated in the holder tube 12. A long and narrow shaft portion 28, a strain relief portion 30 provided at the rear end of the shaft portion 28, and a catheter hub 32 provided at the rear end of the strain relief portion 30.

  The shaft portion 28 is formed of a resin or the like that is formed in a cylindrical shape and has high slidability. The surface of the shaft portion 28 is covered with a hydrophilic coat. Thereby, the lubricity in the living organ of the shaft part 28 can be obtained.

  The strain relief portion 30 is made of resin or the like. The outer peripheral surface of the strain relief portion 30 is gradually formed in a tapered shape with a small diameter toward the shaft portion 28. Accordingly, the tip of the strain relief portion 30 can be inserted into the other end portion of the holder tube 12 (the end portion on which the holder hub 14 is not provided) with the shaft portion 28 stored in the holder tube 12. it can. Therefore, the strain relief portion 30 can be fixed to the holder tube 12.

  The catheter hub 32 is made of resin or the like, and is attached in a detachable manner to the fixed arm portion 34 extending from the fixture 20 described above with the shaft portion 28 housed in the holder tube 12. As a result, the catheter hub 32 is fixed to the holder tube 12.

  In the catheter device 10 configured as described above, the surface of the shaft portion 28 may stick to the inner surface of the holder tube 12 in a state where the shaft portion 28 is housed in the holder tube 12. In particular, when the surface of the shaft portion 28 is covered with a hydrophilic coat, it tends to stick.

  If the shaft portion 28 is pulled out from the holder tube 12 in such a state, the shaft portion 28 may be damaged. Therefore, in such a case, by connecting the tip of the syringe 26 (see FIG. 7B) to the opening portion 14a of the holder hub 14 and injecting (priming) physiological saline into the holder tube 12, the shaft from the holder tube 12 is formed. The part 28 needs to be easily pulled out. In addition, such priming of the holder tube 12 is performed in a state where the holder tube 12 is mounted on a mounting table or the like (not shown).

  In addition to the above-described components, the catheter device 10 according to the present embodiment is provided with a connection assisting tool 36 used when connecting the syringe 26 to the holder hub 14.

  As shown in FIGS. 2 to 4, the connection auxiliary tool 36 according to the present embodiment is formed to be capable of holding the holder hub 14 and has a plate-shaped auxiliary tool main body 38 that is formed in a rectangular shape in plan view, A pair of locking portions 40 a and 40 b provided on the auxiliary tool main body 38 and lockable to the holder tube 12 are provided.

  The auxiliary tool main body 38 is made of a resin material, for example, a plastic made of polystyrene, and the thickness of the auxiliary tool main body 38 is set to a thickness that allows warping deformation. Therefore, the auxiliary tool body 38 can be suitably warped and deformed by pressing the auxiliary tool body 38 from the back side. The size (plane area) of the auxiliary tool main body 38 is set to be appropriately larger than the holder hub 14 in plan view (see FIGS. 1 and 5). Thereby, the holder hub 14 can be suitably held by the auxiliary tool main body 38.

  The auxiliary tool body 38 is formed with a first fold part 42 extending in the longitudinal direction of the auxiliary tool body 38 and a pair of second fold parts 44 a and 44 b that are continuous with the first fold part 42. .

  The first fold portion 42 is bent in a valley shape when viewed from one side (hereinafter referred to as a holding surface 46) of the auxiliary tool body 38 (see FIG. 3). Further, one end of the first fold portion 42 is located on the short side 48a of one of the holding surfaces 46 (left side in FIG. 2). The other end of the first fold portion 42 is located closer to the short side 48b of the other (right side in FIG. 2) than the center in the longitudinal direction of the assisting device main body 38. It is located in the approximate center in the lateral direction.

  A bending angle (an angle formed between a first holding surface 52 and a second holding surface 54 described later) θ1 of the first fold portion 42 can be arbitrarily set, but is set to, for example, 60 ° to 150 ° ( (See FIG. 3). When the bending angle θ1 is smaller than 60 °, it may be difficult to warp and deform the auxiliary tool main body 38. When the bending angle θ1 is larger than 150 °, the auxiliary tool main body 38 is When warped and deformed, a sufficient amount of deformation may not be obtained.

  The second fold portions 44a and 44b extend from one end 42a of the first fold portion 42 to both ends of the short side 48b (both corners on the short side 48b side of the holding surface 46). In other words, the second fold portions 44 a and 44 b extend from both ends of the extension line 43 extending from the one end 42 a of the first fold portion 42 to the short side 48 b side of the first fold portion 42. The angle α1 formed between the second fold portion 44a and the extension line 43 is set to an obtuse angle and can be changed as appropriate. The angle α2 formed by the second fold portion 44b and the extension line 43 is the same as described above.

  The bending angle (the angle between the first holding surface 52 and the third holding surface 56 described later, and the angle between the second holding surface 54 and the third holding surface 56) θ2 of the second fold portions 44a and 44b is arbitrary. However, for example, it is set to 120 ° to 160 ° (see FIG. 4). In this case, when the auxiliary tool body 38 is warped and deformed, the warp-shaped holding force can be suitably increased.

  The holding surface 46 includes a first holding surface 52 surrounded by a first fold portion 42, a second fold portion 44a, a long side 50a on one side (the upper side in FIG. 2), and a short side 48a, and a first A fold part 42, a second fold part 44b, a second holding surface 54 surrounded by a long side 50b on the other side (lower side in FIG. 2) and a short side 48a, and a pair of second fold parts 44a, Thus, the third holding surface 56 surrounded by 44b and the short side 48b is formed.

  When the auxiliary tool main body 38 configured as described above is formed of the resin material as described above, it is formed by, for example, injection molding.

  The locking portions 40a and 40b are located in the vicinity of the short side 48a of the holding surface 46 and parallel to each other with a predetermined distance therebetween, and the assisting device main body 38 is provided with a substantially U-shaped notch directed in opposite directions. It is formed by. The locking portion 40 a is connected to the first holding surface 52, and the locking portion 40 b is connected to the second holding surface 54.

  The locking portions 40a and 40b are formed in a rectangular shape in plan view as a whole, and their tips are rounded. The length L of the locking portions 40a, 40b can be arbitrarily set, but is set sufficiently larger than the outer diameter of the holder tube 12 (see FIG. 5). Thereby, the holding force (locking force) of the holder tube 12 can be increased.

  The width W of the locking portions 40a and 40b can be arbitrarily set. For example, the width W is set to the same width as the outer diameter of the holder tube 12. If the width W of the locking portions 40a, 40b is too wide, it becomes difficult to bend the locking portions 40a, 40b with respect to the auxiliary tool body 38. If the width of the locking portions 40a, 40b is too narrow, the holder tube 12 The holding power is reduced. In addition, what is necessary is just to set the space | interval of the latching | locking parts 40a and 40b suitably.

  The catheter device 10 configured as described above is accommodated in the sterilization bag 200 with the connection aid 36 attached to the holder tube 12 at the time of product shipment (see FIG. 1). Thereby, in a hospital, an operator etc. can save the effort which equips the holder tube 12 with the connection assistance tool 36. FIG. In addition, since the connection assistance tool 36 is comprised by plate shape as mentioned above, even if the connection assistance tool 36 is mounted | worn with the holder tube 12, the whole thickness of the catheter apparatus 10 hardly changes.

  As shown in FIGS. 5 and 6A, the attachment auxiliary tool 36 is attached to the holder tube 12 with the holder tube 12 locked in a state where the tip of the holder hub 14 is positioned (contacted) on the third holding surface 56. This is performed by sandwiching between the parts 40a, 40b and the auxiliary tool body 38.

  That is, the holding portions 12a and 40b are erected with fingers and the holder tube 12 continuing to the holder hub 14 is disposed between the locking portions 40a and 40b spaced apart from each other by a predetermined distance, and then the locking portions 40a and 40b are connected to the fingers. When released, the locking portions 40a and 40b attempt to return to the original state. Due to the elastic force, the holder tube 12 is firmly positioned and held by the locking portions 40a and 40b. As a result, the holder hub 14 is suitably held on the holding surface 46 of the auxiliary tool body 38.

  At this time, as described above, since the first fold portion 42 is bent in a valley shape when viewed from the holding surface 46 side, the holder tube 12 is easily positioned on the first fold portion 42. Is done. Moreover, since the direction of the latching | locking part 40a, 40b is an opposite direction, it can hold | maintain the holder tube 12 with sufficient balance.

  Next, the operation of connecting the tip of the syringe 26 to the opening 14a of the holder hub 14 using the connection aid 36 configured as described above will be described with reference to FIGS. 6A to 8B.

  First, as shown in FIGS. 6A, 7A, and 8A, the operator or the like places the catheter device 10 taken out from the sterilization bag 200 on a placing table (not shown), and the tip of the holder hub 14 is held third. It is confirmed whether or not it is located on the surface 56. If not, the position of the connection aid 36 with respect to the holder tube 12 (holder hub 14) is adjusted.

  Thereafter, the operator or the like holds the auxiliary tool main body 38 with one hand and moves the connecting portion 58 of the first fold portion 42 and the second fold portions 44a and 44b from the back side to the holding surface 46 side. Push it up by hand.

  Thereby, as shown in FIG. 6B, FIG. 7B, and FIG. 8B, the auxiliary tool main body 38 is warped and deformed so that the holding surface 46 becomes a convex surface (warped shape). At this time, since the first fold portion 42 is bent in a valley shape when viewed from the holding surface 46 side in a state before the warp deformation, the warp shape of the auxiliary tool body 38 is suitably maintained. And in the holding surface 46 of this state, the connection part 58 becomes a vertex of a convex surface. Further, the holding surface 46 has a valley-folded bent portion 59 between the connecting portion 58 and the locking portion 40b (for example, on the first fold portion 42) (see FIGS. 6B and 7B). The warp shape of the auxiliary tool body 38 starts at the bent portion 59 as a boundary. That is, the holding surface 46 has an upward slope from the bent portion 59 to the connecting portion 58.

  Therefore, the direction of the opening 14a of the holder hub 14 placed on the warped shape of the auxiliary tool main body 38 can be changed diagonally upward (or diagonally downward). Therefore, even when the holder tube 12 and the holder hub 14 are arranged on the same plane, when the tip of the syringe 26 is connected to the opening 14a of the holder hub 14, the syringe 26 hits an adjacent tube or mounting table. This can be suitably suppressed. Thereby, the tip of the syringe 26 can be easily and reliably connected to the opening 14 a of the holder hub 14.

  In addition, since the second fold portions 44a and 44b are bent in a valley shape when viewed from the holding surface 46 side in the state before the warp deformation, it is possible to increase the warp-shaped holding force of the auxiliary tool body 38. it can. In other words, the warp shape of the auxiliary tool body 38 can be maintained firmly.

  The present embodiment is not limited to the configuration described above. The length of the first fold portion 42, the length of the second fold portions 44a and 44b, the position of the first fold portion 42, and the like can be changed as appropriate.

  Further, the connection assisting tool 36 may omit the second fold portions 44a and 44b. In this case, the auxiliary tool body 38 can be easily warped and deformed (with a relatively small force) to maintain the warped shape.

  As shown in FIG. 9, for example, the catheter device 10 may house the connection aid 36 in a small sterilization bag 202 alone and place it in the central space of the holder tube 12. By doing so, since the overlap between the holder tube 12 and the connection aid 36 is eliminated, it is possible to further suppress an increase in the overall thickness of the catheter device 10.

  In the catheter apparatus 10 according to the present embodiment, instead of the connection assisting tool 36, a connection assisting tool 70 having a modified structure as described below may be used. In this modification, the same components as those of the above embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIGS. 10 to 12, the connection assisting tool 70 has a rectangular plate-shaped assisting instrument body 72 in a plan view. The auxiliary tool main body 72 includes a first fold portion 74 extending in the short-side direction, and one end (end portion on the long side 50a side in FIG. 10) 74a to the long side 50a of the first fold portion 74. A pair of second fold portions 76a and 76b that extend and a pair of third fold portions that extend from the other end (the end portion on the long side 50b side in FIG. 10) 74b of the first fold portion 74 to the long side 50b. Portions 78a and 78b are formed.

  The first fold portion 74 is bent in a valley shape when viewed from the holding surface 46 side (see FIG. 11). Further, the first fold portion 74 is located between the locking portion 40 b and the short side 48 b and is located substantially in the center in the short direction of the auxiliary tool main body 72. The length of the first fold 74 is about half of the short side 48a. The bending angle θ3 of the first fold portion 74 is set in the same range as the bending angle θ1 of the first fold portion 42 of the first embodiment.

  The second fold portions 76a and 76b are bent in a valley shape when viewed from the holding surface 46 side (see FIG. 12). The second fold portions 76 a and 76 b extend from both ends of the extension line 80 extending from the one end 74 a of the first fold portion 74 to the long side 50 a side of the first fold portion 74.

  The bending angle θ4 of the second fold portions 76a and 76b is set in the same range as the bending angle θ2 of the second fold portions 44a and 44b of the first embodiment. Further, the angle β1 formed by the second fold portion 76a and the extension line 80 is set to an obtuse angle and can be changed as appropriate. The angle β2 formed by the second fold portion 76b and the extension line 80 is the same as described above.

  The third fold portions 78a and 78b have the same shape as the second fold portions 76a and 76b. That is, the third fold portions 78a and 78b are bent in a valley shape when viewed from the holding surface 46 side. The third fold portions 78 a and 78 b extend from the other end 74 b of the first fold portion 74 to both sides of the extension line 82 extending to the long side 50 b side of the first fold portion 74.

  When the connection aid 70 configured as described above is used, the connection aid 70 is attached to the holder tube 12 so that the holder hub 14 is positioned on the first fold portion 74 (for example, FIG. 13 and FIG. 14A). reference). Then, as shown in FIGS. 14A to 16B, the auxiliary tool main body 72 is warped and deformed so that the holding surface 46 becomes a convex surface by pressing the first fold portion 74 from the back side to the holding surface 46 side. The warp shape can be maintained. At this time, in the holding surface 46, a valley-folded bent portion 79 is generated between the first fold portion 74 and the locking portion 40b (see FIGS. 14B and 15B). The warp shape of the auxiliary tool main body 72 starts at the bend 79. That is, the holding surface 46 has an upward slope from the bent portion 79 to the first fold portion 74.

  At this time, in the state before the warp deformation, in addition to the second fold portions 76a and 76b, the third fold portions 78a and 78b are bent in a valley shape when viewed from the holding surface 46 side. The holding force of the warped shape of the main body 72 can be further increased.

  The connection assisting tool 70 according to the modification of the present embodiment is not limited to the configuration described above. The length of the first fold portion 74, the length of the second fold portions 76a and 76b, the length of the third fold portions 78a and 78b, the position of the first fold portion 74, and the like can be changed as appropriate. It is.

  One or three or more locking portions 40a may be formed in the auxiliary tool bodies 38 and 72 according to the present embodiment.

  The catheter device 10 according to this embodiment may use a guide wire instead of the catheter 16.

(Second Embodiment)
Next, a catheter device 100 according to a second embodiment of the present invention will be described with reference to FIGS. In 2nd Embodiment, the same referential mark is attached | subjected to the structure which is common in 1st Embodiment, and the overlapping description is abbreviate | omitted.

  In the catheter device 100 according to the present embodiment, the distal end of the syringe 26 is connected to the opening of the catheter hub 32 with the shaft portion 28 housed in the holder tube 12, and physiological saline is injected into the catheter 16 (priming). Therefore, as shown in FIG. 17, the connection aid 102 is also provided at the other end of the holder tube 12 (the end of the catheter 16 on the side where the strain relief portion 30 is located).

  The connection aid 102 according to this embodiment basically has the same configuration as the connection aid 36 of the first embodiment, and is adapted to the size of the catheter hub 32 (base end portion of the catheter 16). The length of the auxiliary tool body 104 in the longitudinal direction is slightly longer.

  In the present embodiment, with the catheter hub 32 detached from the fixed arm portion 34, the connection assisting tool 102 is mounted on the holder tube 12 so that the catheter hub 32 is positioned on the third holding surface 56 (position adjustment). (See FIG. 18). As in the case of the first embodiment, the holding surface 46 is convex (curved) by pushing the connecting portion 58 of the first fold portion 42 and the second fold portions 44a, 44b from the back side to the holding surface 46 side. The auxiliary tool body 104 can be warped and deformed so as to have a shape.

  Thereby, direction of the opening part of the catheter hub 32 mounted on the curvature shape of the auxiliary tool main body 72 can be changed to diagonally upward (or diagonally downward). Therefore, even when the holder tube 12, the holder hub 14, and the catheter hub 32 are arranged on the same plane, the syringe 26 is mounted when the tip of the syringe 26 is connected to the opening of the catheter hub 32. It can suppress suitably hitting a mounting stand etc. Therefore, the tip of the syringe 26 can be easily and reliably connected to the opening of the catheter hub 32.

  In the present embodiment, the priming of the holder tube 12 is performed after the priming of the catheter 16. The operation for connecting the tip of the syringe 26 to the opening 14a of the holder hub 14 is the same as that in the first embodiment, and a description thereof will be omitted. In the present embodiment, it goes without saying that the catheter 16 may be primed after the holder hub 14 is primed.

  Since the catheter device 100 according to this embodiment is equipped with the connection aids 36 and 102 on both ends of the holder tube 12, the connection operation of the tip of the syringe 26 to the opening of the catheter hub 32 and the holder hub 14 are connected. The connection operation of the tip of the syringe 26 to the opening 14a can be efficiently performed.

  The present embodiment is not limited to the configuration described above. In the catheter apparatus 100 according to the present embodiment, instead of the connection assisting tool 102, a connection assisting tool 106 having the following modified structure may be used.

  As shown in FIG. 19, the connection aid 106 according to the modification of the present embodiment has basically the same configuration as the connection aid 70 according to the modification of the first embodiment, and the catheter hub 32. The length in the longitudinal direction of the assisting device main body 108 is formed slightly longer in accordance with the size of (the proximal end portion of the catheter 16).

  In this case, the connection aid 106 is attached to the holder tube 12 such that the catheter hub 32 is positioned on the first fold 74. As in the case of the first embodiment, the auxiliary tool main body 108 is warped and deformed so that the holding surface 46 becomes a convex surface by pressing the first fold portion 74 from the back side to the holding surface 46 side. The warp shape can be maintained.

  In the catheter device 100 according to the present embodiment, for example, each of the connection aids 36 and 102 may be accommodated in a small sterilization bag and placed in the central space of the holder tube 12 at the time of product shipment. It is.

  In addition, the catheter device 100 according to the present embodiment has, for example, a connection aid having a size suitable for both the catheter hub 32 and the holder hub 14 at one end or the other end of the holder tube 12 at the time of product shipment. You may accommodate in the sterilization bag 200 in the mounted state.

  In this case, for example, after priming in the catheter 16, the connection aid is removed from the other end of the holder tube 12, and the connection aid is attached to one end of the holder tube 12 for use. it can. Thereby, since it is not necessary to prepare two connection aids, the number of parts can be reduced.

  The present invention is not limited to the above-described embodiment, and it is naturally possible to adopt various configurations without departing from the gist of the present invention.

  The catheter devices 10 and 100 according to the present invention may omit the holder hub 14 provided at one end of the holder tube 12. In this case, the tip of the syringe 26 is connected to the opening at the end of the holder tube 12.

DESCRIPTION OF SYMBOLS 10,100 ... Catheter apparatus 12 ... Holder tube 14 ... Holder hub 16 ... Catheter 26 ... Syringe (injection tool) 28 ... Shaft part 32 ... Catheter hub 36, 70, 102, 106 ... Connection assistance tool 38, 72, 104, 108 ... Auxiliary tool main bodies 40a, 40b ... locking portions 42, 74 ... first fold portions 43, 80, 82 ... extension lines 44a, 44b, 76a, 76b ... second fold portions 46 ... holding surfaces 78a, 78b ... third Fold

Claims (7)

An infusion device for fluid injection is connected to the end of a spiral or wound holder tube containing a flexible wire, or the proximal end of the catheter as the wire housed in the holder tube A connection aid used when
The connection auxiliary tool is a plate-like auxiliary tool body that contacts the end of the holder tube or the proximal end of the catheter;
A locking portion provided on the auxiliary tool body and lockable to the holder tube,
One surface of the auxiliary tool body is configured as a holding surface capable of holding the holder tube or the catheter,
The assisting tool main body is formed so that it can be warped and deformed so that the holding surface becomes a convex surface, and is capable of maintaining the warped shape of the holding surface. The connection aid according to claim 1,
A connection aid, wherein the holding surface is formed with a first fold portion bent in a valley shape. The connection aid according to claim 2,
The holding surface is formed with a pair of second fold portions extending from one end of the first fold portion to both sides of the extension line of the first fold portion and bent in a valley shape. A connection aid characterized by that. The connection aid according to claim 3,
The holding surface is formed with a pair of third fold portions extending from both ends of the first fold portion to both sides of the extension line of the first fold portion and bent in a valley shape. A connection aid characterized by being made. In the connection auxiliary tool according to any one of claims 1 to 4,
The said auxiliary tool main body is comprised with resin-made materials, The connection auxiliary tool characterized by the above-mentioned. A flexible guidewire;
A spiral or wound holder tube containing the guide wire;
A connection aid provided at an end of the holder tube,
The catheter device according to any one of claims 1 to 5, wherein the connection aid is the connection aid according to any one of claims 1 to 5. A flexible catheter;
A spiral or wound holder tube containing the catheter;
A connection aid provided at an end of the holder tube or a proximal end of the catheter,
The catheter device according to any one of claims 1 to 5, wherein the connection aid is the connection aid according to any one of claims 1 to 5.

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