JP-7857160-B2 - Medical devices

Inventors

• 大橋 裕一郎

Assignees

• 株式会社カネカ
• 株式会社カネカメディックス

Dates

Publication Date

20260512

Application Date

20220523

Claims (16)

1. A base sheet including a resin layer and/or a paper layer , Medical sheath and, A medical device comprising a first fixing member, at least a portion of which is disposed within the lumen of the medical sheath and which detachably fixes the medical sheath to the base sheet.
2. The medical device according to claim 1, wherein the first fixing member extends in a first direction and has a first fixing portion fixed to the base sheet at one end in the first direction.
3. Furthermore, it has a second fixing member that extends in a second direction and at least a portion of which is positioned in the lumen of the medical sheath and detachably fixes the medical sheath to the base sheet, and the second fixing member has a second fixing portion that is fixed to the base sheet at one end in the second direction. The medical device according to claim 2, wherein the other end of the second fixing member in the second direction faces the other end of the first fixing member in the first direction.
4. The first fixing member has a first widened portion adjacent to the first fixing portion, which widens toward the first fixing portion. The medical device according to claim 3, wherein the second fixing member has a second widening portion adjacent to the second fixing portion, which widens toward the second fixing portion.
5. The first fixing member has a first fixed-width portion of a certain width in the portion adjacent to the first widening portion, The medical device according to claim 4, wherein the second fixing member has a second fixed width portion of a certain width in the portion adjacent to the second widening portion.
6. The first fixing member and the second fixing member each have an unfixed portion that is not fixed to the base sheet, and at least a portion of each of the unfixed portions is disposed within the lumen of the medical sheath, as described in claim 3 or 4.
7. The medical device according to claim 6, wherein the length of the unfixed portion of the first fixing member in the first direction is longer than the length of the unfixed portion of the second fixing member in the second direction.
8. The medical device according to claim 6, wherein the non-fixed portion of the first fixing member and the non-fixed portion of the second fixing member are each flap-shaped.
9. The medical device according to claim 3 or 4, wherein the first fixing member and the second fixing member are not in contact.
10. The medical device according to claim 2, wherein the first fixing member has a second fixing portion fixed to the base sheet at the other end of the first fixing member in the first direction.
11. The medical device according to claim 1 or 2, wherein the width of the portion of the first fixing member positioned within the lumen of the medical sheath is smaller than the diameter of the lumen of the medical sheath.
12. The medical device according to claim 3 or 4, wherein the width of the portion of the second fixing member positioned within the lumen of the medical sheath is smaller than the diameter of the lumen of the medical sheath.
13. The medical device according to claim 1 or 2, wherein the first fixing member is in the form of a sheet.
14. The medical device according to claim 3 or 4, wherein the second fixing member is in the form of a sheet.
15. The medical device according to claim 1 or 2, wherein the medical sheath has an axially extending notch.
16. The medical device according to claim 15, wherein at least a portion of the first fixing member is sandwiched between the notches of the medical sheath.

Description

This invention relates to a medical device that reduces deformation of medical sheaths during sterilization. Conventionally, flexible, elongated medical devices such as catheters were often fixed to a cardboard backing and packaged in a bag when not in use. For example, Patent Document 1 discloses a medical device holding cardboard made of a long sheet material that is stored in a bag-shaped package while holding a medical device having a flexible linear portion, and the holding portion is formed by folding the sheet material in a V-shape along the longitudinal direction of the sheet material, and has a V-shaped groove for storing the linear portion of the medical device, and a W-shaped groove formed at the base end of the V-shaped groove by folding the valley in the opposite direction in a mountain shape. Furthermore, Patent Document 2 discloses a medical device packaging member characterized by cutting a thin, flat sheet or dish-shaped body made of paper or a soft synthetic resin to form one or more restraining pieces, providing a notch with an arched end approximately in the center of each restraining piece, cutting from the arched end of the notch to the end of the restraining piece to form a pressure-relieving portion, and folding the restraining piece at the base end along the folding portion. Japanese Patent Publication No. 2009-201826Japanese Patent Publication No. 2002-193322 Figure 1 is a plan view of a medical device according to the first embodiment.Figure 2 is a cross-sectional view showing the section A-A in Figure 1.Figure 3 is a plan view of the sheet before the medical sheath shown in Figure 1 is placed on it.Figure 4 is a plan view of an example of a medical sheath.Figure 5 is a plan view of a medical device according to the second embodiment.Figure 6 is a plan view of the sheet before the medical sheath shown in Figure 5 is placed on it.Figure 7 is a plan view of a medical device according to the third embodiment.Figure 8 is a cross-sectional view showing the section B-B in Figure 7.Figure 9 is a plan view of the sheet before the medical sheath shown in Figure 7 is placed on it.Figure 10 is a cross-sectional view relating to a modified example of the B-B section in Figure 8. The present invention will be described more specifically below based on the embodiments described below. However, the present invention is not limited by these embodiments, and it is certainly possible to implement it with appropriate modifications within the scope that is consistent with the spirit of the preceding and following descriptions. All such modifications are included within the technical scope of the present invention. Note that, for convenience, some component reference numerals, etc., may be omitted in the drawings; in such cases, please refer to the specification or other drawings. Furthermore, the dimensions of various components in the drawings may differ from the actual dimensions, as priority is given to facilitating an understanding of the features of the present invention. The medical device according to an embodiment of the present invention comprises a base sheet, a medical sheath, and a first fixing member, at least a portion of which is positioned within the lumen of the medical sheath and detachably fixes the medical sheath to the base sheet. As described above, conventionally, when a medical sheath was pressed down by the holding portion of the backing board and sterilized using high-pressure steam or heat sterilization gas, the medical sheath sometimes deformed. In contrast, with the medical device according to this embodiment, at least a portion of the first fixing member is positioned within the lumen of the medical sheath, thus supporting the lumen side of the medical sheath and reducing deformation of the medical sheath. The following describes the medical device according to the first embodiment, with reference to Figures 1, 2, and 3. Figure 1 is a plan view of the medical device according to the first embodiment. Figure 2 is a cross-sectional view showing the section A-A in Figure 1. Figure 3 is a plan view of the sheet before the medical sheath of Figure 1 is placed on it. Figure 4 is a plan view of an example of a medical sheath. As shown in Figures 1 and 2, the medical device 101 according to the first embodiment comprises a base sheet 10, a medical sheath 20, and a first fixing member 1, at least a portion of which is positioned in the lumen 20L of the medical sheath 20 and which detachably fixes the medical sheath 20 to the base sheet 10. Because at least a portion of the first fixing member 1 is positioned in the lumen 20L of the medical sheath 20, the lumen 20L side of the medical sheath 20 can be supported, thereby reducing deformation of the medical sheath 20 due to heat sterilization. As shown in Figures 1 and 3, it is preferable that the first fixing member 1 extends linearly in the first direction 1X. This makes it easier for the first fixing member 1 to support the inner