Medical device support sheets and medical device packages

Abstract

When a medical device support sheet, which supports a medical device, is placed in a bag, this prevents the bag from tearing due to contact with the base end of the medical device. [Solution] The medical device support sheet comprises a sheet body, a cover, and a first support. A medical device having a tube and a cylindrical base connected to the base end of the tube is placed on the sheet body. The cover covers the base end portion of the base of the medical device. The first support supports the first portion of the base of the medical device that is closer to the tip than the base end portion.

Description

Technical Field

[0001] The technology disclosed in this specification relates to a medical device support sheet and a medical device package.

Background Art

[0002] A medical device (for example, a catheter) having a tube and a cylindrical base provided at the proximal end of the tube is distributed in the form of a medical device package. The medical device package includes a medical device, a medical device support sheet (hereinafter also referred to as a "support sheet") for supporting the medical device, and a bag body such as a sterilization bag for accommodating the medical device and the support sheet (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Known support sheets support a medical device with the proximal end portion of the base portion of the medical device exposed. Therefore, in a medical device package, there is a risk that the bag body may be torn due to contact between the proximal end portion of the base portion of the medical device and the bag body.

[0005] This specification discloses a technology capable of solving the above-described problems.

Means for Solving the Problems

[0006] The technology disclosed in this specification can be realized, for example, in the following forms.

[0007] A medical device support sheet disclosed herein comprises a sheet body, a cover, and a first support. A medical device having a tube and a cylindrical base connected to the proximal end of the tube is placed on the sheet body. The cover covers the proximal end portion of the base of the medical device. The first support supports a first portion of the base of the medical device that is more distal to the proximal end portion. [Brief explanation of the drawing]

[0008] [Figure 1] Explanatory diagram showing the appearance of the medical device package of the first embodiment. [Figure 2] An explanatory diagram showing a cross-section of the medical device package at position II-II in Figure 1. [Figure 3] An explanatory diagram showing a longitudinal cross-section of the tip of the medical device package according to the first embodiment. [Figure 4] An explanatory diagram showing an enlarged view of a portion of the base end side of the support sheet in the first embodiment. [Figure 5] An explanatory diagram showing an enlarged view of a portion of the base end side of the support sheet in the first embodiment. [Figure 6] An explanatory diagram showing an enlarged view of a portion of the base end side of the support sheet in the second embodiment. [Figure 7] An explanatory diagram showing an enlarged view of a portion of the base end side of the support sheet in the second embodiment. [Figure 8] An explanatory diagram showing an enlarged view of a portion of the base end side of the support sheet in the third embodiment. [Figure 9] An explanatory diagram showing an enlarged view of a portion of the base end side of the support sheet in the third embodiment. [Modes for carrying out the invention]

[0009] (Composition of medical device package 10) Figure 1 is an explanatory diagram showing the external appearance of the medical device package 10 of the first embodiment. Figure 2 is an explanatory diagram showing a cross-section (XY section) of the medical device package 10 at position II-II in Figure 1. Figure 3 is an explanatory diagram showing a longitudinal section (XZ section) of the base end of the medical device package 10 of the first embodiment. In this specification, the cross-section of the medical device package 10 and each of its components means a section perpendicular to the longitudinal direction. The longitudinal section of the medical device package 10 and each of its components means a section parallel to the central axis in the longitudinal direction.

[0010] The medical device package 10 includes a catheter 20, a medical device support sheet (hereinafter also referred to as the "support sheet") 100, and a sterile bag 30.

[0011] (Configuration of catheter 20) The catheter 20 is a long medical device inserted into the lumen of a living body, such as a blood vessel. In the catheter 20, the side in the positive Z-axis direction is the tip end (distal end) that is inserted into the body, and the side in the negative Z-axis direction is the proximal end (proximal end) that is manipulated by the operator. In this specification, for each part of the medical device package 10 including the catheter 20, the end on the positive Z-axis direction is referred to as the "tip," the tip and its vicinity as the "tip portion," the end on the negative Z-axis direction is referred to as the "proximal end," and the proximal end and its vicinity as the "proximal end portion." In this specification, the X-axis direction is referred to as the front-back direction, the side in the positive X-axis direction is referred to as the "front side," and the side in the negative X-axis direction is referred to as the "back side."

[0012] The catheter 20 includes a tube 21 and a base 29. The tube 21 is a long, cylindrical member with a lumen formed therein. The tube 21 is flexible. The cross-section of the tube 21 is, for example, circular. The tip 21d of the tube 21 is shaped into a curved form. The tube 21 is made of, for example, resin.

[0013] The base 29 is a cylindrical member connected to the base end of the tube 21. The base 29 includes a protector 24 and a connector 28. The connector 28 is connected to the base end of the tube 21.

[0014] The protector 24 is a cylindrical member. The protector 24 covers the periphery of the connection between the connector 28 and the tube 21. The protector 24 includes a tip portion 22 and a base portion 23 that is continuous with the base end of the tip portion 22. The tip portion 22 and the base portion 23 have a tapered shape, for example, in which the outer diameter gradually increases from the tip side to the base end side. The cross-sections of each part of the tip portion 22 and the base portion 23 are, for example, circular. The outer diameter of the base portion 23 is larger than the outer diameter of the tip portion 22. The protector 24 is formed of, for example, resin. The protector 24 is formed of, for example, a material that is harder than the forming material of the tube 21.

[0015] The connector 28 is a cylindrical member with a lumen formed therein that connects to the lumen of the tube 21. The connector 28 includes a small-diameter tip portion 25, a large-diameter portion 26 continuous with the base end of the small-diameter tip portion 25, and a small-diameter base portion 27 continuous with the base end of the large-diameter portion 26. Each of the small-diameter tip portion 25, the large-diameter portion 26, and the small-diameter base portion 27 is, for example, cylindrical with a substantially constant outer diameter. However, a pair of flanges 26A are formed on the outer circumferential surface of the large-diameter portion 26, in a symmetrical positional relationship with respect to the central axis of the large-diameter portion 26. An enlarged-diameter portion 27A, which has a larger diameter than the other parts, is formed at the base end of the small-diameter base portion 27. For example, a Luer lock type connector is formed on the enlarged-diameter portion 27A, to which a syringe (not shown) is connected. The outer diameter of the large-diameter portion 26, excluding the flange 26A, is greater than the outer diameter of the small-diameter portion 27 at the base end, excluding the small-diameter portion 25 at the tip and the enlarged-diameter portion 27A. The connector 28 is formed of, for example, resin. The connector 28 is formed of, for example, a material harder than the material used to form the protector 24.

[0016] (Composition of sterile bag 30) The sterilization bag 30 is a bag body in which a sealed accommodation space 38 is formed. The sterilization bag 30 includes a back member 31 and a front member 32. The back member 31 and the front member 32 are sheet-like members that are substantially rectangular with the Z-axis direction as the long side and the Y-axis direction as the short side when viewed in the X-axis direction. The back member 31 and the front member 32 are joined to each other in a substantially rectangular outer peripheral region 33, for example, by welding or adhesion, in a state of being overlapped in the X-axis direction. In FIG. 1, for the sake of convenience, the outer peripheral region 33 is hatched. The back member 31 and the front member 32 are formed of, for example, resin or non-woven fabric. The front member 32 may be formed of a transparent material so that the catheter 20 accommodated in the accommodation space 38 can be visually recognized.

[0017] (Configuration of the support sheet 100) FIGS. 4 and 5 are explanatory views showing an enlarged part of the proximal end side of the support sheet 100 in the first embodiment. FIG. 4 shows a state where the catheter 20 is not arranged on the support sheet 100, and FIG. 5 shows a state where the catheter 20 is arranged on the support sheet 100. In FIGS. 4 and 5, for the sake of convenience, each hole formed in the support sheet 100 is hatched.

[0018] The support sheet 100 is a sheet-like member that supports the catheter 20 arranged on the support sheet 100. The support sheet 100 is formed of, for example, paper. A resin layer may be formed on a part of the support sheet 100 (for example, the front surface).

[0019] The support sheet 100 includes a sheet main body part 102, a cover part 110, a proximal end side support part 120, a distal end side support part 130, and a tube support part 140.

[0020] The sheet body portion 102 is a substantially rectangular sheet-like member with the Z-axis direction as the longer side and the Y-axis direction as the shorter side when viewed in the X-axis direction. The corners of the sheet body portion 102 may be chamfered. The thickness of the sheet body portion 102 is, for example, 0.05 mm or more and 0.5 mm or less. The thickness of the sheet body portion 102 may be 0.1 mm or more and 0.4 mm or less, or 0.15 mm or more and 0.35 mm or less. In this specification, the direction of the longer side of the sheet body portion 102 is referred to as the longitudinal direction, and the direction of the shorter side of the sheet body portion 102 is referred to as the width direction. The catheter 20 is placed on the front surface of the sheet body portion 102. As shown in Figure 1, in this embodiment, the portion of the catheter 20 excluding the tip portion 21d of the tube 21 is placed in the sheet body portion 102 at a position eccentric to the negative Y-axis direction from the center in the width direction. The tip portion 21d of the tube 21 is curved from this eccentric position toward the center in the width direction.

[0021] As shown in Figures 4 and 5, the cover portion 110, the proximal support portion 120, the tip support portion 130, and the tube support portion 140 are formed by making cuts (cuts 128, etc.) in the edge of a portion of the sheet material that forms the sheet body portion 102, and then bending that portion outwards. Therefore, the cover portion 110, the proximal support portion 120, the tip support portion 130, and the tube support portion 140 are connected to the sheet body portion 102. When the catheter 20 is not placed on the support sheet 100 (Figure 4), the cover portion 110, the proximal support portion 120, the tip support portion 130, and the tube support portion 140 may be folded in substantially the same plane as the sheet body portion 102. The phrase "bent outwards" on the front side of a portion of the sheet material as described above is not limited to a form in which the portion is folded outwards based on a fold line, but also includes a form in which the portion does not have a clear fold line as a reference, but protrudes outwards in a sloping manner, continuously from other portions of the sheet material. Hereinafter, the sheet material used to form the sheet body portion 102 will also be referred to as the sheet body portion 102 for convenience.

[0022] The cover portion 110 is a part that covers the proximal end portion of the base 29 of the catheter 20 from the front side. In this embodiment, the cover portion 110 covers the small diameter portion 27 at the proximal end of the connector 28 included in the base 29. The cover portion 110 is adjacent to the proximal edge 102p of the sheet body portion 102. More specifically, in the longitudinal direction, the cover portion 110 is located between the proximal edge 102p and the through hole 127 formed in the sheet body portion 102. The cover portion 110 and the sheet body portion 102 are not separated by a clear fold line, and they are formed continuously. The cover portion 110 is divided into two small pieces 111 aligned in the width direction by a notch 118. In this embodiment, the notch 118 extends parallel to the longitudinal direction so as to connect the proximal edge 102p and the through hole 127. In this specification, the term "parallel directions" is not limited to the configuration in which the two directions are strictly parallel, but also includes the configuration in which the two directions are substantially parallel, specifically, the configuration in which the angle between the two directions is ±10 degrees or less. The corners 110c facing the notches 118 at the proximal ends of the two small pieces 111 are chamfered. The small diameter portion 27 at the proximal end of the catheter 20 is pushed into the back side of the cover portion 110 through the notches 118, thereby being covered from the front side by the cover portion 110. The small diameter portion 27 at the proximal end is an example of the proximal end portion of the base.

[0023] The proximal support portion 120 is a part of the catheter 20 that supports the portion of the base 29 of the catheter that is closer to the tip than the proximal portion. In this embodiment, the proximal support portion 120 supports the small-diameter tip portion 25 of the connector 28 included in the base 29. The proximal support portion 120 is formed by making cuts 128 on three sides of a substantially rectangular area of ​​the sheet body 102 that is closer to the tip than the cover portion 110, and then bending the area outwards with respect to the bent line 129 which is the edge of the area at the tip. As a result of bending the area, a part of the through hole 127 is formed in the sheet body 102. The proximal support portion 120 formed in this way is connected to the sheet body 102 at the tip. A through hole 122 is formed in the proximal support portion 120. The shape of the through hole 122 is, for example, substantially circular. The diameter of the through-hole 122 is, for example, approximately the same as the outer diameter of the small-diameter tip portion 25 of the connector 28, and smaller than the outer diameter of the large-diameter portion 26 of the connector 28 and the outer diameter of the base end of the base portion 23 of the protector 24. The base end support portion 120 is divided into two small pieces 121 aligned in the width direction by a notch 123 extending from the through-hole 122 toward the base end. In this embodiment, the notch 123 is parallel to the longitudinal direction. The corners 120c of the base ends of the two small pieces 121 facing the notch 123 are chamfered. The small-diameter tip portion 25 of the connector 28 is housed in the through-hole 122 via the notch 123 and supported by the base end support portion 120 such that its movement in the longitudinal, width, and front-to-back directions is restricted. The base end support portion 120 is an example of a first support portion. The small-diameter portion 25 at the tip of the connector 28 is an example of the first part. The tip side along the longitudinal direction is an example of the first direction side.

[0024] The tip support portion 130 is the part of the catheter 20's base 29 that supports the portion closer to the tip than the portion supported by the proximal support portion 120 (i.e., the tip-side small-diameter portion 25). In this embodiment, the tip support portion 130 supports the tip portion 22 of the protector 24 included in the base 29. The tip support portion 130 is formed by making cuts 138 on three sides of a substantially rectangular area in the sheet body portion 102 closer to the tip than the proximal support portion 120, and then bending the area outwards with respect to the bent line 139, which is the proximal edge of the area. As a result of bending the area, a through hole 137 is formed in the sheet body portion 102. The tip support portion 130 formed in this way is connected to the sheet body portion 102 at the proximal end. That is, in the longitudinal direction, the connection position of the tip support portion 130 to the sheet body portion 102 is on the opposite side from the connection position of the proximal support portion 120 to the sheet body portion 102. A through-hole 132 is formed in the tip-side support portion 130. The shape of the through-hole 132 is, for example, approximately circular. The diameter of the through-hole 132 is approximately the same as the outer diameter of the position on the tapered tip portion 22 that is supported by the tip-side support portion 130. The tip-side support portion 130 is divided into two small pieces 131 aligned in the width direction by a notch 133 extending from the through-hole 132 toward the tip. In this embodiment, the notch 133 is parallel to the longitudinal direction. The corners 130c of the tips of the two small pieces 131 facing the notch 133 are chamfered. The tip portion 22 of the protector 24 is housed in the through-hole 132 via the notch 133 and is supported by the tip-side support portion 130 such that its movement in the longitudinal, width, and front-back directions is restricted. The tip-side support portion 130 is an example of a second support portion. The tip portion 22 of the protector 24 is an example of the second part.

[0025] The tube support portion 140 is a part for supporting the tube 21 of the catheter 20. In this embodiment, the support sheet 100 has a plurality of tube support portions 140 arranged in the longitudinal direction. The tube support portion 140 includes a first small piece 141 and a second small piece 142. The first small piece 141 is formed in the sheet body portion 102 by making a substantially V-shaped cut 146 that defines a substantially triangular region, and bending the region outwards with reference to a fold line 147 which is the edge of the bottom of the region. As a result of bending the region, a through hole 144 is formed in the sheet body portion 102. In this embodiment, the fold line 147 is parallel to the longitudinal direction. The second small piece 142 is located closer to the tip than the first small piece 141. The second small piece 142 is formed in the sheet body 102 by making a roughly V-shaped cut 148 that defines a roughly triangular region, and then bending the region to the front side with reference to a fold line 149 which is the edge of the base of the region. As a result of bending the region, a through hole 145 is formed in the sheet body 102. In this embodiment, the fold line 149 is parallel to the longitudinal direction. The tube 21 is supported such that movement in the front / back direction and width direction is restricted to one side (positive Y-axis direction) by being covered by the first small piece 141, and movement in the front / back direction and width direction is restricted to the other side (negative Y-axis direction) by being covered by the second small piece 142. In this embodiment, the tip edge of the second small piece 142 is curved in a convex shape. In this embodiment, the vertex 142A of the second small piece 142 is located closer to the base end than the tip base point 142B on the base of the second small piece 142.

[0026] (Manufacturing method for medical device package 10) The manufacturing method for the medical device package 10 is as follows, for example. First, the worker places the catheter 20 on the front surface of the sheet body portion 102 of the support sheet 100. The worker covers each part of the catheter 20 with the cover portion 110, or supports it with the proximal end support portion 120, the tip end support portion 130, and the tube support portion 140, so that the catheter 20 is supported by the support sheet 100. The worker prepares a sterile bag 30. This sterile bag 30 has a roughly rectangular outer peripheral region 33, and the back member 31 and the front member 32 are continuously joined along three sides excluding one side (for example, the proximal end side). The worker inserts the support sheet 100 and the catheter 20 into the storage space 38 of the sterile bag 30 through the unjoined portion of the sterile bag 30, and then the worker joins the back member 31 and the front member 32 at the unjoined portion. As a result, the support sheet 100 and the catheter 20 are sealed within the containment space 38 of the sterile bag 30. For example, the medical device package 10 of this embodiment is manufactured by the method described above.

[0027] (Effects of the first embodiment) As described above, the support sheet 100 of the first embodiment includes a sheet body portion 102, a cover portion 110, and a proximal end support portion 120. A catheter 20, which is a medical device having a tube 21 and a cylindrical base portion 29 connected to the proximal end of the tube 21, is placed on the sheet body portion 102. The cover portion 110 covers the proximal end portion of the base portion 29. The proximal end support portion 120 supports the portion of the base portion 29 that is closer to the tip than the proximal end portion.

[0028] Thus, the support sheet 100 of the first embodiment includes a cover portion 110 that covers the proximal end portion of the base 29 of the catheter 20. Therefore, when the support sheet 100 supporting the catheter 20 is placed in the sterile bag 30, it is possible to suppress the occurrence of tearing of the sterile bag 30 due to contact with the proximal end portion of the base 29 of the catheter 20. If the support sheet 100 of the first embodiment is used, even if the proximal end portion of the base 29 of the catheter 20 is positioned towards the edge of the sterile bag 30, it is possible to suppress the occurrence of tearing of the sterile bag 30. Therefore, if medical devices of the same length are to be accommodated, the length of the support sheet 100 and the sterile bag 30 can be shortened.

[0029] In the support sheet 100 of the first embodiment, the cover portion 110 is adjacent to the proximal edge 102p of the sheet body portion 102. According to the support sheet 100 of the first embodiment, the length of the support sheet 100 and the sterile bag 30 can be effectively shortened while suppressing the occurrence of tearing of the sterile bag 30 due to contact with the proximal end portion of the base 29 of the catheter 20.

[0030] In the support sheet 100 of the first embodiment, the cover portion 110 and the base end support portion 120 are connected to the sheet body portion 102. According to the support sheet 100 of the first embodiment, complexity of the structure of the support sheet 100 can be avoided.

[0031] In the support sheet 100 of the first embodiment, the cover portion 110 and the base end support portion 120 are formed by bending a portion of the sheet material that forms the sheet body portion 102. According to the support sheet 100 of the first embodiment, the manufacturing of the support sheet 100 can be simplified.

[0032] The support sheet 100 of the first embodiment further includes a tip-side support portion 130 that supports the portion of the catheter 20's base 29 that is closer to the tip than the portion supported by the proximal support portion 120. According to the support sheet 100 of the first embodiment, the base 29 can be supported more reliably by the proximal support portion 120 and the tip-side support portion 130, and the lifting of the base 29 with the position of the proximal support portion 120 as a fulcrum can be suppressed.

[0033] In the support sheet 100 of the first embodiment, the base end support portion 120 is connected to the sheet body portion 102 at the tip end along the longitudinal direction, and the tip end support portion 130 is connected to the sheet body portion 102 at the base end along the longitudinal direction. According to the support sheet 100 of the first embodiment, the base portion 29 can be supported more reliably by the base end support portion 120 and the tip end support portion 130, and the lifting of the base portion 29 with the position of the base end support portion 120 as a fulcrum can be suppressed more effectively.

[0034] In the support sheet 100 of the first embodiment, the cover portion 110 is divided into two small pieces 111 aligned in the width direction by a notch 118. According to the support sheet 100 of the first embodiment, the work of covering the base 29 of the catheter 20 with the cover portion 110 by the worker can be made easier.

[0035] In the support sheet 100 of the first embodiment, the notch 118 extends parallel to the longitudinal direction. The support sheet 100 of the first embodiment further facilitates the above work.

[0036] In the support sheet 100 of the first embodiment, the corner portion 110c on the base end side of the small piece 111 is chamfered. According to the support sheet 100 of the first embodiment, the above work can be further simplified, and the tearing of the sterilization bag 30 due to contact with the corner portion 110c of the cover portion 110 can be suppressed.

[0037] (Second Embodiment) Figures 6 and 7 are explanatory diagrams showing enlarged views of a portion of the proximal end of the support sheet 100a of the second embodiment. Figure 6 shows the state in which the catheter 20 is not placed on the support sheet 100a, and Figure 7 shows the state in which the catheter 20 is placed on the support sheet 100a. In the following, for components of the support sheet 100a of the second embodiment that are the same as those of the support sheet 100 of the first embodiment described above, the same reference numerals are used, and their descriptions will be omitted as appropriate.

[0038] The support sheet 100a of the second embodiment differs from the support sheet 100 of the first embodiment in the configuration of the cover portion 110a that covers the proximal end portion of the base 29 of the catheter 20. In the support sheet 100a of the second embodiment, a notch 118a is formed in the sheet body portion 102. The notch 118a extends parallel to the width direction from the outer edge on the negative Y-axis side of the sheet body portion 102 and connects to the through hole 127. That is, the notch 118a extends from the outer edge on the side eccentric from the width direction center of the sheet body portion 102 where the catheter 20 placed on the sheet body portion 102 is located. Therefore, the length of the notch 118a is less than half the width of the sheet body portion 102. The cover portion 110a is the portion between the notch 118a and the proximal end edge 102p of the sheet body portion 102. Unlike in the first embodiment, the cover portion 110a is not divided into two small pieces aligned in the width direction by a notch. The small diameter portion 27 at the proximal end of the catheter 20 is pushed into the back side of the cover portion 110a through the notch 118a, thereby being covered from the front side by the cover portion 110a.

[0039] The support sheet 100a of the second embodiment, like the support sheet 100 of the first embodiment, includes a cover portion 110a that covers the proximal end portion of the base 29 of the catheter 20, thereby suppressing the occurrence of tearing of the sterile bag 30 due to contact with the proximal end portion of the base 29 of the catheter 20.

[0040] In the support sheet 100a of the second embodiment, the cover portion 110a is located in the longitudinal direction between the notch 118a formed in the sheet body portion 102 and the proximal edge 102p of the sheet body portion 102. According to the support sheet 100a of the second embodiment, the cover portion 110a can reliably cover the proximal end portion of the base 29 of the catheter 20, and the occurrence of tearing of the sterile bag 30 due to contact with the proximal end portion of the base 29 of the catheter 20 can be effectively suppressed.

[0041] In the support sheet 100a of the second embodiment, the notch 118a extends parallel to the width direction from the outer edge of the sheet body 102 along the width direction. According to the support sheet 100a of the second embodiment, the length of the support sheet 100a and the sterilization bag 30 can be effectively shortened while suppressing the occurrence of tearing of the sterilization bag 30 due to contact with the proximal end portion of the base 29 of the catheter 20.

[0042] In the support sheet 100a of the second embodiment, the length of the notch 118a is less than half the width of the sheet body portion 102. According to the support sheet 100a of the second embodiment, the work of covering the base portion 29 of the catheter 20 with the cover portion 110a by the worker can be made easier.

[0043] (Third embodiment) Figures 8 and 9 are explanatory diagrams showing enlarged views of a portion of the proximal end of the support sheet 100b of the third embodiment. Figure 8 shows the state in which the catheter 20 is not placed on the support sheet 100b, and Figure 9 shows the state in which the catheter 20 is placed on the support sheet 100b. In the following, for components of the support sheet 100b of the third embodiment that are the same as those of the support sheet 100a of the second embodiment described above, the same reference numerals are used, and their descriptions will be omitted as appropriate.

[0044] The support sheet 100b of the third embodiment differs from the support sheet 100a of the second embodiment in the configuration of the cover portion 110b that covers the proximal end portion of the base 29 of the catheter 20. In the support sheet 100b of the third embodiment, a notch 118b is formed in the sheet body portion 102. The notch 118b extends parallel to the width direction from the outer edge on the positive Y-axis side of the sheet body portion 102 and connects to the through hole 127. That is, the notch 118b extends from the outer edge opposite to the side on which the catheter 20 placed on the sheet body portion 102 is eccentric from the width direction center of the sheet body portion 102. Therefore, the length of the notch 118b is more than half the width of the sheet body portion 102. The cover portion 110b is the portion between the notch 118b and the proximal end edge 102p of the sheet body portion 102. Unlike in the first embodiment, the cover portion 110b is not divided into two small pieces aligned in the width direction by a notch. The small diameter portion 27 at the proximal end of the catheter 20 is pushed into the back side of the cover portion 110b through the notch 118b, thereby being covered from the front side by the cover portion 110b.

[0045] The support sheet 100b of the third embodiment, like the support sheet 100a of the second embodiment, includes a cover portion 110b that covers the proximal end portion of the base 29 of the catheter 20, thereby suppressing the occurrence of tearing of the sterile bag 30 due to contact with the proximal end portion of the base 29 of the catheter 20.

[0046] In the support sheet 100b of the third embodiment, similar to the support sheet 100a of the second embodiment, the cover portion 110b is located in the longitudinal direction between the notch 118b formed in the sheet body portion 102 and the proximal edge 102p of the sheet body portion 102. Therefore, the cover portion 110b can reliably cover the proximal end portion of the base 29 of the catheter 20, and effectively suppress the occurrence of tearing of the sterile bag 30 due to contact with the proximal end portion of the base 29 of the catheter 20.

[0047] In the support sheet 100b of the third embodiment, similar to the support sheet 100a of the second embodiment, the notch 118b extends parallel to the width direction from the outer edge along the width direction of the sheet body 102. This effectively shortens the length of the support sheet 100b and the sterile bag 30 while suppressing the occurrence of tearing of the sterile bag 30 due to contact with the proximal end portion of the base 29 of the catheter 20.

[0048] In the support sheet 100b of the third embodiment, the length of the notch 118b is at least half the width of the sheet body 102. According to the support sheet 100b of the third embodiment, the cover portion 110b can more reliably cover the proximal end portion of the base 29 of the catheter 20, and the occurrence of tearing of the sterile bag 30 due to contact with the proximal end portion of the base 29 of the catheter 20 can be more effectively suppressed.

[0049] (modified version) The technologies disclosed herein are not limited to the embodiments described above and can be modified in various forms without departing from their essence, for example, the following modifications are possible.

[0050] The configurations of the medical device package 10, support sheet 100, catheter 20, and sterile bag 30 in the above embodiment are merely examples and can be modified in various ways. For example, in the above embodiment, the support sheet 100 does not need to have at least one of the tube support portion 140 and the tip-side support portion 130.

[0051] In the above embodiment, at least one of the cover portion 110, the base end support portion 120, the tip end support portion 130, and the tube support portion 140 may be formed from a material prepared separately from the sheet material used to form the sheet body portion 102.

[0052] In the above embodiment, the base end support portion 120 may be connected to the sheet body portion 102 at the base end along the longitudinal direction. In the above embodiment, the tip end support portion 130 may be connected to the sheet body portion 102 at the tip along the longitudinal direction. For example, the base end support portion 120 may be connected to the sheet body portion 102 at the base end along the longitudinal direction, and the tip end support portion 130 may be connected to the sheet body portion 102 at the tip along the longitudinal direction.

[0053] The support sheet 100 of the above embodiment can be used to support not only a catheter 20, but also medical devices in general that have a tube and a cylindrical base connected to the proximal end of the tube.

Claims

1. Medical device support sheets (100, 100a, 100b), A sheet body portion (102) on which a medical device (20) having a tube (21) and a cylindrical base portion (29) connected to the base end of the tube (21) is arranged, A cover portion (110, 110a, 110b) that covers the base end portion (27) of the base portion (29), A first support portion (120) supports the first portion (25) of the base portion (29) that is closer to the tip than the base end portion (27), Medical device support sheets (100, 100a, 100b) equipped with the following features.

2. A medical device support sheet (100, 100a, 100b) according to claim 1, The cover portion (110, 110a, 110b) is a medical device support sheet (100, 100a, 100b) adjacent to the base edge (102p) of the sheet body portion (102).

3. A medical device support sheet (100, 100a, 100b) according to claim 1 or claim 2, The cover portion (110, 110a, 110b) and the first support portion (120) are connected to the sheet body portion (102), forming a medical device support sheet (100, 100a, 100b).

4. A medical device support sheet (100, 100a, 100b) according to claim 3, The cover portion (110, 110a, 110b) and the first support portion (120) are medical device support sheets (100, 100a, 100b) formed by bending a portion of the sheet material used to form the sheet body portion (102).

5. A medical device support sheet (100, 100a, 100b) according to any one of claims 1 to 4, A medical device support sheet (100, 100a, 100b) further comprising a second support portion (130) that supports a second portion (22) of the base (29) that is more tip-oriented than the first portion (25).

6. A medical device support sheet (100, 100a, 100b) according to claim 5, The first support portion (120) is connected to the sheet body portion (102) on the first direction side along the longitudinal direction of the sheet body portion (102), The second support portion (130) is connected to the sheet body portion (102) on the second direction side opposite to the first direction along the longitudinal direction of the sheet body portion (102), and is a medical device support sheet (100, 100a, 100b).

7. A medical device support sheet (100) according to any one of claims 1 to 6, The cover portion (110) is divided by a cut (118) into two small pieces (111) aligned in the width direction of the sheet body portion (102), forming a medical device support sheet (100).

8. A medical device support sheet (100) according to claim 7, The aforementioned cut (118) extends parallel to the longitudinal direction of the sheet body portion (102) of the medical device support sheet (100).

9. A medical device support sheet (100) according to claim 7 or claim 8, The base corner (110c) of the aforementioned small piece (111) is chamfered, forming a medical device support sheet (100).

10. A medical device support sheet (100a, 100b) according to any one of claims 1 to 6, The cover portion (110a, 110b) is a medical device support sheet (100a, 100b) located in the longitudinal direction of the sheet body portion (102) between the notches (118a, 118b) formed in the sheet body portion (102) and the base edge (102p) of the sheet body portion (102).

11. A medical device support sheet (100a, 100b) according to claim 10, The aforementioned notches (118a, 118b) extend from the outer edge in the width direction of the sheet body portion (102) parallel to the width direction of the medical device support sheet (100a, 100b).

12. A medical device support sheet (100a) according to claim 10 or claim 11, A medical device support sheet (100a) wherein the length of the cutout (118a) is less than half the width of the sheet body (102).

13. A medical device support sheet (100b) according to claim 10 or claim 11, The length of the aforementioned cut (118b) is at least half the width of the sheet body portion (102) of the medical device support sheet (100b).

14. A medical device support sheet (100, 100a, 100b) according to any one of claims 1 to 13, The medical device (20) is placed on the sheet body portion (102) of the medical device support sheet (100, 100a, 100b), A bag (30) that contains the medical device support sheets (100, 100a, 100b) and the medical device (20), A medical device package (10) equipped with the following.

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