protective equipment

Abstract

To provide a protector capable of protecting a leading end part of a medical long device housed in a wound holder tube at an appropriate position and capable of suppressing deformation of the leading end part of the long device.SOLUTION: A protector 10 protects a wound holder tube 110 housing a guide wire 100 and a leading end of the guide wire 100 protruding from an inserter 120 connected to an end of the holder tube 110, and has: a cover part 20 which has a bottom surface 11 and a top surface 12 and in which a recess 13 is formed on the bottom surface 11 side; an inserter connection part 30 which is connected to the cover part 20 and in which a passage 31 engageable with the inserter 120 is formed in communication with an internal space of the cover part 20; and a holder connection part 50 where a housing groove 53 engageable with the holder tube 110 is formed. The holder connection part 50 has an arm part 51 bent in the direction in which the inserter connection part 30 is connected to the cover part 20.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a protector for protecting the end of an elongated medical device. [Background technology]

[0002] A guidewire is a medical device inserted into a blood vessel prior to a medical device, such as a catheter or stent, for intravascular treatment to guide the medical device to the target site. A guidewire may have a pre-shaped tip to facilitate selection of a blood vessel at a vascular bifurcation when advancing the guidewire toward the target site within the blood vessel. The tip of a shaped guidewire is prone to deformation due to interference with the guidewire's outer covering during transportation and storage. If the tip of a guidewire deforms from its pre-shaped shape, it becomes difficult to select a branch of a blood vessel during treatment. For this reason, for example, Patent Document 1 describes a protective device that includes a plate-shaped portion on which the tip of the guidewire, protruding from a wound holder tube that houses the guidewire, can be placed. This protective device is connected to the holder tube. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Special Publication No. 2017-521125 Summary of the Invention [Problem to be solved by the invention]

[0004] The plate-shaped protector described in Patent Document 1 holds the shaped tip of the guidewire on the surface of its plate-shaped part, and therefore comes into contact with the tip of the guidewire. Therefore, when the guidewire rotates, the tip of the guidewire may interfere with the protector and become deformed.

[0005] The present invention has been made to solve the above-mentioned problems, and aims to provide a protective device that can protect the tip of a medical elongated device housed in a wound holder tube at an appropriate position and suppress deformation of the tip of the elongated device. [Means for solving the problem]

[0006] The protective equipment according to the present invention, which achieves the above object, comprises a wound holder tube for accommodating a long medical device, and a protective device connected to an end of the holder tube. For assisting the insertion operation of the elongated device into a catheter A protective device that protects the tip of the elongated device protruding from the inserter, comprising: a cover portion having a bottom surface and a top surface and a recess formed on the bottom surface side; an inserter connecting portion connected to the cover portion and having a passage into which the inserter can be fitted that communicates with the internal space of the cover portion; and a holder connecting portion formed with an accommodating groove into which the holder tube can be fitted, wherein the holder connecting portion extends elongately and has an arm portion that is bent toward the side of the cover portion where the inserter connecting portion is connected. [Effects of the Invention]

[0007] The protector configured as described above can position the cover section at a position where it can accommodate the distal end of the guidewire by connecting the inserter connector to the inserter, and can connect the holder connector with a curved arm to a holder tube that moves away while tilting in the depth direction of the cover section when wound around it. Therefore, the protector can protect, in an appropriate position, the distal end of the elongated device protruding from the inserter connected to the end of the wound holder tube. Furthermore, because the protector can accommodate the distal end of the elongated device within the internal space of the cover section, deformation of the distal end of the elongated device due to interference with the protector and damage to the hydrophilic coating can be suppressed.

[0008] The arm portion may have a reinforcing rib extending in the extension direction, which makes the protector lighter and less susceptible to deformation due to external forces from multiple directions, thereby preventing the distal end of the guidewire from interfering with the protector and deforming it.

[0009] The holder connecting portion may be positioned closer to the top surface than an imaginary plane on which the bottom surface is located. This allows the protector to move the holder tube that fits into the holder connecting portion away from the imaginary plane and position the tip end of the elongated device placed in the internal space of the cover portion at a position away from the imaginary plane of the internal space of the cover portion. This prevents the tip end of the elongated device housed in the internal space of the cover portion from coming into contact with the exterior material and becoming deformed.

[0010] The holder connecting portion has a groove center that is the center of the inner circumferential surface of the accommodation groove in a cross section perpendicular to the extension direction of the accommodation groove, and the inserter connecting portion has a passage center that is the center of the inner circumferential surface of the passage that holds the inserter in a cross section perpendicular to the extension direction of the passage, and the difference in height between the groove center and the passage center from an imaginary plane on which the bottom surface is located may be within ±2 mm. This allows the axis of the inserter that fits into the inserter connecting portion and the axis of the holder tube that fits into the accommodation groove to be positioned on approximately the same plane. This prevents the protector, which is connected to both the inserter and the holder tube, from being tilted with respect to the imaginary plane, thereby preventing damage to the exterior material and detachment of the protector from the holder tube. Furthermore, the protector allows the holder tube, inserter, and guidewire to be positioned on approximately the same plane without waste, making transportation and storage easier.

[0011] The protector may be connected to a portion of the cover closest to the bottom surface and have a bottom edge portion extending parallel to the bottom surface so as to surround the cover portion, and an extension of a projection line located closest to the cover portion when an inner peripheral surface of the accommodation groove closest to the cover portion is projected onto an imaginary plane on which the bottom surface is located may overlap a projection range of the bottom edge portion onto the imaginary plane. This allows the protector to arrange holder tubes that fit into the accommodation grooves so that they are overlapped in the height direction of the bottom edge portion, thereby enabling the holder tubes and the protector to be arranged efficiently and facilitating transportation and storage. The protector may hold the elongated device with the recess open to the bottom side. [Brief explanation of the drawings]

[0012] [Figure 1] FIG. 1 is a front view of a protective device according to an embodiment. [Figure 2] FIG. 2 is a rear view of the protective equipment according to the embodiment. [Figure 3] FIG. 2 is a side view of the protector as seen from the arrow A in FIG. [Figure 4] FIG. 2 is a side view of the protector as seen from the arrow B in FIG. [Figure 5] FIG. 2 is a side view of the protector as seen from the arrow C in FIG. [Figure 6] FIG. 2 is a cross-sectional view taken along line DD in FIG. [Figure 7] FIG. 10 is a front view showing the guide wire housed in the holder tube, inserter, and protective device, and packaged in an exterior material. [Figure 8] FIG. 10 is an enlarged front view showing the guide wire housed in the holder tube, the inserter, and the protective device. DETAILED DESCRIPTION OF THE INVENTION

[0013] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the dimensional proportions in the drawings may be exaggerated for the sake of explanation and may differ from the actual proportions.

[0014] 7, the protector 10 according to this embodiment is attached to a holder tube 110 that houses a guidewire 100, which is a long medical device, for transport and storage, and protects the distal end of the shaped guidewire 100. Note that the end of the holder tube 110 located on the outside of the wound holder tube 110 is the distal end, and the end of the holder tube 110 located on the inside of the wound holder tube 110 is the proximal end.

[0015] The guidewire 100 protected by the protector 10 is not particularly limited. The guidewire 100 may be in a form in which a metal core wire is entirely coated with a highly flexible resin such as urethane, or in a form in which the base end of the core wire is coated with a fluorine-based resin such as polytetrafluoroethylene and the tip end has a coil formed by winding a metal wire. The metal forming the core wire is a superelastic alloy such as a nickel-titanium alloy, stainless steel, or the like. The outer surface of the guidewire 100 is provided with a hydrophilic coating. The tip end of the guidewire 100 is given a curved shape either in a plane or three-dimensionally.

[0016] The holder tube 110 is a spirally wound tube made of resin and can accommodate the guide wire 100 therein.

[0017] An inserter 120 is connected to the tip of the holder tube 110 to assist in inserting the guidewire 100 into the catheter. The inserter 120 is a tubular member made of resin that tapers in diameter toward the tip. The guidewire 100 is housed in the holder tube 110 and the inserter 120 so that the tip of the guidewire 100 protrudes from the tip of the inserter 120 connected to the holder tube 110.

[0018] At least one fastening member 130 is connected to the holder tube 110 to maintain the wound shape. The fastening member 130 is a resin member having a shape in which a plurality of groove-shaped accommodating portions 131 for accommodating the holder tubes 110 are arranged in parallel. The fastening member 130 connects adjacent holder tubes 110 by forcing the holder tubes 110 into the accommodating portions 131 and fitting them together. One or more fastening members 130 are provided along the winding direction of the holder tube 110.

[0019] A proximal end connecting member 140 that holds the proximal end of the guidewire 100 is connected to the proximal end of the holder tube 110. The proximal end connecting member 140 is an elastically deformable cylindrical body with one slit 141 formed in the vertical direction. The proximal end connecting member 140 accommodates the guidewire 100 inside the cylindrical body through the slit 141, and is inserted into the proximal end opening of the holder tube 110 and connected to the holder tube 110, thereby holding the proximal end of the guidewire 100 by its elastic force. Note that the proximal end connecting member 140 does not necessarily have to be provided.

[0020] 1 to 4, the protector 10 has a bottom surface 11 in which a recess 13 is formed, and a top surface 12 opposite the bottom surface 11, with a portion of the bottom surface 11 located on an imaginary plane M on which the protector 10 is assumed to be placed. The protector 10 has a dome-like shape that rises from the imaginary plane M in a height direction Z perpendicular to the imaginary plane M. The protector 10 has a cover portion 20 that can be housed to cover the tip of the guidewire 100, an inserter connecting portion 30 that can connect to an inserter 120, a bottom edge portion 40 that surrounds the cover portion 20 and the inserter connecting portion 30, and a holder connecting portion 50 that can be connected to a holder tube 110.

[0021] The cover portion 20 has a rising portion 21 rising from an imaginary plane M in the height direction Z, a ceiling portion 22 spaced apart from the rising portion 21 in the height direction Z from the imaginary plane M and substantially parallel to the imaginary plane M, and a transition portion 23 smoothly connecting the rising portion 21 and the ceiling portion 22. The rising portion 21 has a first rising portion 24 connected to the inserter connecting portion 30, a second rising portion 25 connected to the holder connecting portion 50, a third rising portion 26 facing the first rising portion 24, and a fourth rising portion 27 facing the second rising portion 25. A through hole 28 is formed in the third rising portion 26 on an extension of the inserter connecting portion 30 to improve mold releasability during molding. The first rising portion 24 and the third rising portion 26 are inclined with respect to the height direction Z so that they approach each other as they move away from the imaginary plane M in the height direction Z. Furthermore, the second upright portion 25 and the fourth upright portion 27 are inclined with respect to the height direction Z so as to approach each other as they move away from the imaginary plane M in the height direction Z. This allows the protector 10 to have high demoldability when molded using a mold. The ceiling portion 22 is formed with one ceiling convex portion 29. The transition portion 23 between the upright portion 21 and the ceiling portion 22 is formed with a smooth curved surface that convex outward. The radius of curvature of the transition portion 23 on the top surface 12 side is R9 mm to R12 mm. This allows the protector 10 to ensure an internal space inside the cover portion 20 that is sufficient to accommodate the tip end of the guidewire 100, while preventing abrasion of the exterior material 150 (see FIG. 7) used for transportation and storage. In addition, the corners between the first standing portion 24 and the second standing portion 25, between the second standing portion 25 and the third standing portion 26, between the third standing portion 26 and the fourth standing portion 27, and between the fourth standing portion 27 and the first standing portion 24 are also formed with smooth curved surfaces that convex outward, and the radius of curvature of the corners on the top surface 12 side is R6mm to R10mm.

[0022] The maximum length L1 of the interior space of the cover part 20 in the depth direction X is 45 mm to 55 mm. The depth direction X is parallel to the imaginary plane M and extends from the first upright part 24 to the third upright part 26, and coincides with the direction in which the inserter 120 is inserted into the inserter connecting part 30 connected to the first upright part 24.

[0023] The maximum width W1 of the internal space of the cover part 20 in the width direction Y is, for example, 23 mm to 27 mm. The width direction Y is parallel to the imaginary plane M and perpendicular to the depth direction X, and coincides with the direction in which the holder connecting part 50 protrudes from the second upright part 25.

[0024] The maximum height H1 in the height direction Z of the internal space of the cover part 20 is 18 mm to 22 mm. Since the internal space of the cover part 20 has the above-mentioned maximum length L1, maximum width W1, and maximum height H1, when the distal end of the guidewire 100 is housed in the internal space of the cover part 20, the distal end of the guidewire 100 is unlikely to come into contact with the inner surface of the cover part 20. Therefore, the protector 10 can prevent the distal end of the guidewire 100 from interfering with the cover part 20 and becoming deformed, and can prevent damage to the hydrophilic coating.

[0025] The maximum width W1 of the internal space of the cover part 20 is preferably equal to or greater than the maximum height H1 of the internal space of the cover part 20. This enables the protector 10 to prevent the tip end of the guidewire 100 from contacting the inner surface of the cover part 20 when the tip end of the guidewire 100 is curved in the width direction Y within the internal space of the cover part 20. Note that the maximum length L1 of the internal space of the cover part 20 may be equal to or less than the maximum width W1.

[0026] The inserter connecting portion 30 is located at the center of the first upright portion 24 in the width direction Y. The inserter connecting portion 30 has a passage 31 extending along the depth direction X. One end of the passage 31 communicates with the internal space of the cover portion 20 through the first upright portion 24, and the other end of the passage 31 has an insertion opening 32 through which the inserter 120 is inserted. Similar to the internal space of the cover portion 20, the passage 31 is open on the bottom surface 11 side. That is, the passage 31 is formed as a groove along the depth direction X on the bottom surface 11 of the protector 10. The inserter connecting portion 30 has an assumed insertion position P, where the inserter 120 is assumed to be inserted, located at a position separated in the height direction Z from an imaginary plane M of the passage 31. Two opposing protruding claws 33 are formed on the inner surface of the passage 31 so that the inserter 120 can be held at the assumed insertion position P. The center of the inner circumferential surface of the passage 31 that forms the assumed insertion position P is defined as a passage center O1. In other words, the passage center O1 is the center of the inner circumferential surface of the passage 31 that holds the inserter 120 in a cross section perpendicular to the direction in which the passage 31 of the inserter connecting portion 30 extends (depth direction X).

[0027] The width in the width direction Y of the top surface 12 located at the inserter connecting part 30 gradually decreases along the height direction Z as it moves away from the imaginary plane M. The top surface 12 of the inserter connecting part 30 is formed of a flat surface and a smoothly curved surface, and the radius of curvature of the curved surface located at the top surface 12 of the inserter connecting part 30 is R0.5 mm to R4 mm.

[0028] The maximum height H2 of the inner space of the passage 31 from the imaginary plane M in the height direction Z is 4 mm to 8 mm. The maximum height H2 of the passage 31 is lower than the maximum height H1 of the cavity of the cover part 20.

[0029] The maximum width W2 of the interior space of the passage 31 in the width direction Y is 2 mm to 5 mm. The maximum width W2 of the passage 31 is smaller than the maximum width W1 of the interior space of the cover part 20. The protective device 10 has an insertion opening 32 positioned at the center of the cover part 20 in the width direction Y and a maximum height H2 of 4 mm to 8 mm, so that when the inserter 120 is inserted into the assumed insertion position P, the tip end of the guidewire 100, which is located on the extension line of the inserter 120, is unlikely to come into contact with the inner surface of the cover part 20. Therefore, the protective device 10 can suppress deformation of the tip end of the guidewire 100.

[0030] The bottom edge 40 extends with an edge width W3 on the imaginary plane M so as to surround the portions of the cover part 20 and the inserter connecting part 30 located on the imaginary plane M. The corners of the bottom edge 40 are rounded and formed smoothly, which can prevent damage to the exterior material 150. The edge width W3 is 1 mm to 4 mm.

[0031] The holder connecting portion 50 has an arm portion 51 extending in the width direction Y from the second upright portion 25 of the cover portion 20, and a holder accommodating portion 52 arranged at the end of the arm portion 51. As shown in FIGS. 2 to 6, the holder connecting portion 50 is formed at a position spaced apart from the imaginary plane M in the height direction Z. The holder accommodating portion 52 has a shape in which a plurality of accommodating grooves 53 into which the outer circumferential surfaces of the holder tubes 110 are fitted are arranged in parallel. Each accommodating groove 53 has a cylindrical shape that is partially open on the side of the bottom surface 11 of the holder accommodating portion 52. The diameter D of the cylindrical inner cavity of the accommodating groove 53 is 2.8 mm to 3.0 mm, the minimum width W4 of the open portion is 2.4 mm to 2.6 mm, and the open portion tapers outward. This allows the protector 10 to easily fit the holder tube 110, which is assumed to have an outer diameter of 3.0 mm, into the accommodating groove 53, and prevents the protector 10 from falling off the holder tube 110 during transportation and storage. The number of accommodating grooves 53 is, for example, 1 to 5.

[0032] The center of the inner circumferential surface of the accommodation groove 53 is defined as a groove center O2. In other words, the groove center O2 is the center of the inner circumferential surface of the accommodation groove 53 in a cross section perpendicular to the extension direction of the accommodation groove 53 of the holder connecting part 50. A height H4 in the height direction Z from the imaginary plane M to the groove center O2 approximately coincides with a height H3 in the height direction Z from the imaginary plane M to the passage center O1, and the difference between the heights H4 and H3 is preferably within ±2 mm. This ensures that the axis of the inserter 120 inserted into the intended insertion position of the inserter connecting part 30 and the axis of the holder tube 110 accommodated in the accommodation groove 53 are arranged on approximately the same plane. This prevents the protector 10 from being tilted with respect to the imaginary plane M, and allows the holder tube 110, the inserter 120, and the guidewire 100 to be arranged on approximately the same plane without waste, facilitating transportation and storage.

[0033] 8, when the inner circumferential surface of the housing groove 53 closest to the cover portion 20 is projected perpendicularly onto an imaginary plane M on which the bottom surface 11 is located, an extension line EL of a projection line PL located closest to the cover portion 20 overlaps with the range of the bottom edge portion 40 projected perpendicularly onto the imaginary plane M. This allows the protector 10 to be positioned so that the holder tube 110 fitted into the housing groove 53 overlaps with the height direction Z of the bottom edge portion 40.

[0034] 1 to 4 , the arm portion 51 extends in the width direction Y from the second upright portion 25 of the cover portion 20 at a position spaced a predetermined height in the height direction Z from the imaginary plane M, and is bent toward the side of the cover portion 20 where the inserter connecting portion 30 is disposed. The angle θ at which the arm portion 51 bends is 38 to 42 degrees. By bending the arm portion 51, when the protector 10 is connected to a spirally wound holder tube 110 and disposed on the outside of the spiral, the bending of the arm portion 51 allows the tip portion of the guidewire 100, which protrudes from the tip portion of the holder tube 110 via the inserter 120, to be appropriately disposed in the internal space of the cover portion 20.

[0035] As shown in Figures 1 to 5, the arm portion 51 extends from the cover portion 20 and holds the holder housing portion 52 at its end. The arm portion 51 has a reinforcing rib 54 on the surface on the bottom surface 11 side that extends from the cover portion 20 to the holder housing portion 52. This makes the arm portion 51 lighter in weight and less likely to deform due to external forces from multiple directions, thereby preventing the tip portion of the guidewire 100 from interfering with the protector 10 and deforming. The reinforcing rib 54 may also be formed on the top surface 12 side of the arm portion 51.

[0036] The maximum height H5 of the arm portion 51 in the height direction Z from the imaginary plane M is 8 mm to 10 mm. The maximum thickness T1 of the arm portion 51 in the height direction Z is 3 mm to 5 mm. The thickness T2 of the reinforcing rib 54 in the height direction Z is 1 mm to 3 mm.

[0037] The protector 10 is made of a resin material such as polypropylene, etc. The protector 10 is preferably made of a transparent or semi-transparent material so that the guide wire 100 placed in the internal space can be seen.

[0038] Next, a method of using the protective equipment 10 will be described.

[0039] First, the tip of the inserter 120, into which the tip of the holder tube 110 is inserted, is connected to the inserter connecting part 30 of the protector 10. The inserter 120 is placed at the assumed insertion position P of the passage 31 of the inserter connecting part 30. Because the bottom surface 11 side of the passage 31 of the inserter connecting part 30 of the protector 10 is open, it is easy to place the inserter 120 from the bottom surface 11 side without the tip of the guide wire 100 protruding from the inserter 120 coming into contact with the protector 10.

[0040] Next, the holder tubes 110, which are wound and lined up, are connected to each of the storage grooves 53 of the holder connecting part 50. The holder tubes 110 are inserted into the inner cavity of the storage grooves 53 from the tapered open parts of the storage grooves 53, and fit into the holder connecting part 50.

[0041] 7 and 8, the guidewire 100 protruding from the inserter 120 connected to the tip of the spirally wound holder tube 110 is positioned at a position away from the wound portion of the holder tube 110, ahead in the direction of protrusion of the inserter 120. By connecting the inserter connecting part 30 and the inserter 120, the protector 10 can position the cover part 20 at a position where it can accommodate the tip of the guidewire 100, and by connecting the holder connecting part 50 having the bent arm part 51 to the holder tube 110, which moves away while tilting in the depth direction X of the cover part 20 as it is wound, the tip of the guidewire 100, which is placed in the internal space of the cover part 20, can be held without coming into contact with the inner surface of the cover part 20.

[0042] The holder tube 110, the inserter 120, and the guide wire 100 housed in the protector 10 are packaged in an exterior material 150. At this time, the corners of the bottom edge 40 formed on the bottom surface 11 side of the protector 10 and the transition portion 23 between the rising portion 21 and the ceiling portion 22 of the cover portion 20 are formed with curved surfaces, so that the protector 10 is prevented from damaging the exterior material 150.

[0043] As described above, the protective device 10 of this embodiment is a protective device 10 that protects the tip of the guidewire 100 protruding from a wound holder tube 110 that houses a long medical device (guidewire 100) and an inserter 120 connected to the end of the holder tube 110, and has a cover part 20 that has a bottom surface 11 and a top surface 12 and a recess 13 formed on the bottom surface 11 side, an inserter connecting part 30 that is connected to the cover part 20 and has a passage 31 that can fit the inserter 120 and is formed so that it communicates with the internal space of the cover part 20, and a holder connecting part 50 that has a storage groove 53 that can fit the holder tube 110, and the holder connecting part 50 extends long and has an arm part 51 that is bent toward the side of the cover part 20 where the inserter connecting part 30 is connected.

[0044] In the protector 10 configured as described above, by connecting the inserter connecting part 30 and the inserter 120, the cover part 20 can be positioned at a position where the tip of the guidewire 100 can be accommodated, and it is possible to connect the holder connecting part 50 having the bent arm part 51 to the holder tube 110, which is wound around the cover part 20 and moves away while tilting in the depth direction X of the cover part 20. Therefore, the protector 10 can protect, in an appropriate position, the tip of the guidewire 100 protruding from the inserter 120 connected to the end of the wound holder tube 110. Furthermore, because the protector 10 can accommodate the tip of the guidewire 100 within the internal space of the cover part 20, deformation of the tip of the guidewire 100 due to interference with the protector 10 and damage to the hydrophilic coating can be suppressed.

[0045] The arm portion 51 has a reinforcing rib 54 extending in the extension direction, which allows the protector 10 to be lightweight and less prone to deformation due to external forces from multiple directions, thereby preventing the distal end of the guidewire 100 from interfering with the protector 10 and deforming it.

[0046] The holder connecting part 50 is disposed closer to the top surface 12 than the imaginary plane M on which the bottom surface 11 is located. This allows the protector 10 to move the holder tube 110 that fits into the holder connecting part 50 away from the imaginary plane M, and to position the tip end of the guidewire 100 that is disposed in the internal space of the cover part 20 at a position away from the imaginary plane M of the internal space of the cover part 20. Therefore, the tip end of the guidewire 100 that is housed in the internal space of the cover part 20 can be prevented from coming into contact with the exterior material 150 and being deformed.

[0047] The holder connecting part 50 has a groove center O2 that is the center of the inner circumferential surface of the accommodating groove 53 in a cross section perpendicular to the extension direction of the accommodating groove 53, and the inserter connecting part 30 has a passage center O1 that is the center of the inner circumferential surface of the passage 31 that holds the inserter 120 in a cross section perpendicular to the extension direction of the passage 31, and the difference in height between the groove center O2 and the passage center O1 from an imaginary plane M on which the bottom surface 11 is located is within ±2 mm. As a result, in the protector 10, the axial center of the inserter 120 that fits into the inserter connecting part 30 and the axial center of the holder tube 110 that fits into the accommodating groove 53 are arranged on approximately the same plane. Therefore, the protector 10 that is connected to both the inserter 120 and the holder tube 1110 can be prevented from being arranged at an angle with respect to the imaginary plane M, which can prevent damage to the exterior material 150 and detachment of the protector 10 from the holder tube 110. Furthermore, the protector 10 allows the holder tube 110, the inserter 120, and the guide wire 100 to be arranged on approximately the same plane without waste, making transportation and storage easy.

[0048] The protector 10 is connected to the portion of the cover part 20 closest to the bottom surface 11 and has a bottom edge part 40 that extends parallel to the bottom surface 11 so as to surround the cover part 20, and when the inner peripheral surface of the storage groove 53 closest to the cover part 20 is projected onto an imaginary plane M on which the bottom surface 11 is located, an extension line EL of the projection line PL located closest to the cover part 20 overlaps with the range obtained by projecting the bottom edge part 40 perpendicularly onto the imaginary plane M. As a result, the holder tube 110 that fits into the storage groove 53 of the protector 10 can be arranged so that it overlaps in the height direction Z of the bottom edge part 40, allowing the holder tube 110 and the protector 10 to be arranged efficiently, facilitating transportation and storage.

[0049] The present invention is not limited to the above-described embodiment, and various modifications can be made by those skilled in the art within the technical spirit of the present invention. For example, the elongated medical device is not limited to the guidewire 100, but may be, for example, a catheter. Furthermore, the protector 10 may be disposed on the proximal end side of the wound holder tube 110, rather than on the distal end side. [Explanation of symbols]

[0050] 10 Protective Equipment 11 Bottom 12 Top 13 Recess 20 Cover 30 Inserter connection part 31 Passage 32 Insertion port 40 Bottom edge 50 Holder connection part 51 Arm section 52 Holder storage section 53 Storage groove 54 Reinforcing rib 100 Guidewire (long medical device) 110 Holder Tube 120 Inserter M Virtual plane O1 aisle center O2 groove center PL projection line EL extension line

Claims

1. A protective device for protecting a distal end of a medical elongated device protruding from a wound holder tube that houses the elongated device and an inserter that is connected to an end of the holder tube and that assists in inserting the elongated device into a catheter, a cover portion having a bottom surface and a top surface, the cover portion having a recess formed on the bottom surface side; an inserter connecting portion connected to the cover portion, the inserter being fitted into a passage formed in communication with an internal space of the cover portion; a holder connecting portion having an accommodation groove formed therein into which the holder tube can be fitted, The holder connecting portion is a protective device having an arm portion that extends longitudinally and is bent toward the side of the cover portion where the inserter connecting portion is connected.

2. The protector according to claim 1 , wherein the arm portion has a reinforcing rib extending in the extending direction.

3. The protector according to claim 1 or 2, wherein the holder connecting portion is disposed away from an imaginary plane on which the bottom surface is located toward the top surface.

4. the holder connecting portion has a groove center that is the center of the inner circumferential surface of the accommodation groove in a cross section perpendicular to the extension direction of the accommodation groove, the inserter connecting portion has a passage center that is the center of an inner circumferential surface that holds the inserter in a cross section perpendicular to the extension direction of the passage; The protector according to any one of claims 1 to 3, wherein a difference in height between the center of the groove and the center of the passage from an imaginary plane on which the bottom surface is located is within ±2 mm.

5. a bottom edge portion that is connected to a portion of the cover portion closest to the bottom surface and extends parallel to the bottom surface so as to surround the cover portion; The protective equipment according to any one of claims 1 to 4, wherein when the inner circumferential surface of the housing groove closest to the cover portion is projected perpendicularly onto an imaginary plane on which the bottom surface is located, an extension line of a projection line located closest to the cover portion overlaps with an area obtained by projecting the bottom edge portion perpendicularly onto the imaginary plane.

6. Protective equipment described in any one of claims 1 to 5, which holds the long device with the recess open to the bottom side.

Images