Medical swab

Abstract

To provide a medical swab having improved adhesion property between a swab body and a tube.SOLUTION: A medical swab 1 includes a swab body 10, a shaft part 20, and a tube 30. The shaft part 20 holds the swab body 10. The tube 30 has a hollow inside 31. The hollow inside 31 is surrounded by an inner peripheral surface 32a. The shaft part 20 is connected to the inner peripheral surface 32a via an adhesion part 40.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to medical swabs. [Background technology]

[0002] Conventionally, a cotton swab having a cotton-like body inserted into a tube has been known as a cleaning tool for a forceps port in an endoscope (see, for example, JP 2018-82838 A). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] See JP 2018-82838 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, although the above-mentioned cotton swab may be used to exfoliate tissue at an affected area of ​​a patient as an alternative to an electric scalpel, there is a risk that the cotton-like material may come off the tube during use.

[0005] The present disclosure has been made to solve the above-mentioned problems, and an object of the present disclosure is to provide a medical cotton swab with improved adhesion between the cotton-like body and the tube. [Means for solving the problem]

[0006] A medical swab according to the present disclosure includes a cotton-like material, a stem, and a tube. The stem holds the cotton-like material. The tube has a hollow interior. The hollow interior is surrounded by an inner circumferential surface. The stem is connected to the inner circumferential surface via an adhesive. Effect of the Invention

[0007] According to the above, a medical cotton swab having improved adhesion between the cotton-like material and the tube can be obtained. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a cross-sectional view of a medical cotton swab according to a first embodiment. [Diagram 2] 2 is a partially enlarged cross-sectional view of region II in FIG. 1. [Diagram 3] FIG. 11 is a partially enlarged cross-sectional view of a medical cotton swab according to a second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, embodiments of the present disclosure will be described. Note that unless otherwise specified, the same or corresponding parts in the following drawings are given the same reference numerals, and the description thereof will not be repeated.

[0010] Embodiment 1 <Composition of medical cotton swabs> Fig. 1 is a cross-sectional view of a medical cotton swab 1 according to embodiment 1. Fig. 2 is a partially enlarged cross-sectional view of region II in Fig. 1.

[0011] The medical swab 1 shown in Figures 1 and 2 is a medical swab 1 used for blunt dissection performed during surgery, for example, and can dissect tissue in an affected area of ​​a patient more efficiently than using an electric scalpel. The medical swab 1 shown in Figures 1 to 2 mainly comprises a cotton-like body 10, a shaft portion 20, and a tube 30.

[0012] The direction in which the tube 30 extends is defined as the longitudinal direction Z. The direction perpendicular to the longitudinal direction Z is defined as the radial direction r. The shaft portion 20 holds the cotton-like body 10. The tube 30 has a hollow interior 31. As shown in FIG. 2, the shaft portion 20 is inserted into the hollow interior 31 in the longitudinal direction Z. The cotton-like body 10 connected to such a tube 30 can be applied to tissue in an affected area of ​​a patient to exfoliate the tissue.

[0013] The cotton-like body 10 is formed, for example, by an aggregate of fibers. As shown in Fig. 2, the cotton-like body 10 has a tip portion 11a, a side surface 11b, and a rear end surface 11c. The side surface 11b connects the rear end surface 11c and the tip portion 11a. The tip portion 11a is disposed at a position furthest from the tube 30 in the longitudinal direction Z. The rear end surface 11c faces the end surface 32b of the tube 30.

[0014] The shape of the cotton-like body 10 is, for example, cylindrical. Specifically, in a side view seen from the longitudinal direction Z, the rear end face 11c and the tip portion 11a are, for example, circular. When the shape of the cotton-like body 10 is cylindrical, it is preferable that the tip portion 11a has a flat portion 11e. The flat portion 11e extends in the radial direction r. In this way, from the viewpoint of safety, the tissue can be peeled off without being damaged.

[0015] The shape of the cotton-like body 10 does not have a significant effect on the ease of peeling. Therefore, the shape of the cotton-like body 10 does not have to be cylindrical. The shape of the cotton-like body 10 may be tapered. In other words, the tip 11a does not have to include the flat portion 11e, and the shape of the tip 11a may be curved when viewed in a cross-sectional view from the radial direction r. The shape of the side 11b may be curved when viewed in a cross-sectional view from the radial direction r. Multiple recesses may be formed on the side 11b.

[0016] A fillet 11d may be formed at the corners connecting the tip 11a and the rear end surface 11c to the side surface 11b. Specifically, as shown in Fig. 2, in a cross-sectional view taken from the radial direction r, the shape of the corners connecting the tip 11a to the side surface 11b is curved. In a cross-sectional view taken from the radial direction r, the shape of the corners connecting the rear end surface 11c to the side surface 11b is curved. In this way, tissue can be dissected more safely without being damaged.

[0017] The length L1 of the cotton-like body 10 is, for example, 10 mm. The rear end face 11c is substantially surface-connected to the end face 32b of the tube 30 via the adhesive portion 40. Therefore, the length L1 of the cotton-like body 10 is substantially the same as the length L1 in the longitudinal direction Z from the end face 32b of the tube 30 to the tip end 11a of the cotton-like body 10. In other words, the length L1 in the longitudinal direction Z from the end face 32b of the tube 30 to the tip end 11a may be 10 mm.

[0018] As described below, the medical swab 1 can be used by being inserted into the forceps port of an endoscope. Therefore, in consideration of ease of insertion into the forceps port, it is preferable that the length L1 of the cotton-like body 10 be 8 mm or more and 10 mm or less.

[0019] In a side view from the longitudinal direction Z, the shape of the tube 30 is, for example, annular. Specifically, the tube 30 has an inner circumferential surface 32a, an end surface 32b, and an outer circumferential surface 32c. Each of the inner circumferential surface 32a and the outer circumferential surface 32c is connected to the end surface 32b. The hollow interior 31 is surrounded by the inner circumferential surface 32a. When the shape of the tube 30 is annular, in a side view from the longitudinal direction Z, a width R3 of the outer circumferential surface 32c in the radial direction r is the outer diameter R3 of the tube 30. In a side view from the longitudinal direction Z, a width r3 of the inner circumferential surface 32a in the radial direction r is the inner diameter r3 of the tube 30.

[0020] A user holds the tube 30 and uses the medical swab 1. In order to efficiently dissect tissue when performing blunt dissection, it is preferable that the tube 30 has flexibility. The material constituting the tube 30 is, for example, a fluorinated resin.

[0021] As shown in Fig. 2, a portion of the shaft portion 20 is disposed inside the cotton-like body 10. The remaining portion of the shaft portion 20 is disposed in the hollow interior 31. The shape of the shaft portion 20 is, for example, cylindrical. It is preferable that the shaft portion 20 has rigidity. The material constituting the shaft portion 20 is, for example, polypropylene.

[0022] Conventionally, an electric scalpel is used as an instrument for blunt dissection. However, by using the medical cotton swab 1 for blunt dissection, tissue in the affected area of ​​a patient can be dissected more efficiently than with an electric scalpel. Furthermore, when an electric scalpel is used, there is a risk that the tissue may be burned and the affected area may be damaged when the tissue is dissected. By using the medical cotton swab 1, the tissue can be dissected safely without damaging the affected area.

[0023] The medical swab 1 as described above can be inserted, for example, into the forceps port of an endoscope. The user inserts the endoscope with the medical swab 1 inserted into the patient's body. The user operates the medical swab 1 while holding the tube 30. While checking the inside of the patient's body or the affected area displayed by the endoscope, the user can apply the tip 11a of the cotton-like body 10 to the tissue in the affected area of ​​the patient, thereby peeling the tissue. In such a medical swab 1, it is preferable that the tube 30 and the shaft portion 20 have strong adhesion to each other so that the cotton-like body 10 held by the shaft portion 20 does not come out of the tube 30.

[0024] Here, a feature of the medical cotton swab 1 according to the first embodiment is that the shaft portion 20 is connected to the tube 30 via the adhesive portion 40. Specifically, the shaft portion 20 is connected to the inner circumferential surface 32a via the adhesive portion 40. The shaft portion 20 is connected to the inner circumferential surface 32a by applying an adhesive to the shaft portion 20 and inserting the shaft portion 20 into the hollow interior 31. By using an adhesive in this manner, the adhesion between the cotton-like body 10 and the tube 30 is improved. The cotton-like body 10 may also be directly connected to the end surface 32b via the adhesive portion 40. In this manner, the adhesion between the cotton-like body 10 and the tube 30 is further improved.

[0025] As shown in FIG. 2, the inner circumferential surface 32a has a first region P1 and a second region P2. The first region P1 is a region from the end surface 32b to a predetermined distance in the longitudinal direction Z. The predetermined distance may be, for example, the length L2 of the shaft portion 20 inserted into the hollow interior 31 as described later. The predetermined distance may be less than the length L2 of the shaft portion 20 inserted into the hollow interior 31, or may be greater than or equal to the length L2 of the shaft portion 20 inserted into the hollow interior 31. In other words, the first region P1 may include a region in which a part of the shaft portion 20 is disposed in the longitudinal direction Z. The second region P2 is a region adjacent to the first region P1 in the longitudinal direction Z. In other words, the second region P2 may be a region in which the shaft portion 20 is not disposed in the longitudinal direction Z.

[0026] The tube 30 may be subjected to a surface treatment to increase the surface roughness of the surface of the tube 30. Specifically, the surface roughness of the inner circumferential surface 32a in the first region P1 may be greater than the surface roughness of the inner circumferential surface 32a in the second region P2. In this way, the adhesion between the shaft portion 20 and the tube 30 by the adhesive portion 40 is improved. The surface roughness can be measured by any method.

[0027] The medical cotton swab 1 can be used by being inserted into the forceps port of an endoscope. Therefore, it is preferable that the diameter R1 of the cotton-like body 10 and the outer diameter R3 of the tube 30 are each smaller than the diameter of the forceps port. In general, the diameter of the forceps port of an endoscope is 3.2 mm, 2.8 mm, or 2.2 mm. Therefore, the width R1 of the cotton-like body 10 in the radial direction r may be changed according to the endoscope to be used. In other words, it is preferable that the width R1 of the cotton-like body 10 in the radial direction r is 2 mm or more and 3 mm or less. For example, when the diameter of the forceps port is 3.2 mm, the diameter R1 of the cotton-like body 10 may be 2.6 mm when the shape of the cotton-like body 10 is cylindrical. On the other hand, when the diameter R1 of the cotton-like body 10 is, for example, 1.8 mm, the diameter R2 of the shaft portion 20 is 1.8 mm or less. In such a case, the size of the shaft portion 20 is small, so that it is technically difficult to insert the shaft portion 20 into the hollow interior 31. Therefore, it is preferable that the diameter R1 of the cotton-like material 10 is at least 2 mm or more.

[0028] The width R1 of the cotton-like body 10 in the radial direction r may be equal to or smaller than the width R3 of the end face 32b in the radial direction r. Also, the width R1 of the cotton-like body 10 in the radial direction r may be equal to or larger than the width r3 of the hollow interior 31 in the radial direction r. In other words, when the shape of the cotton-like body 10 is cylindrical and the shape of the tube 30 is annular, the diameter R1 of the cotton-like body 10 may be equal to or larger than the inner diameter r3 and equal to or smaller than the outer diameter R3 of the tube 30. In this way, the cotton-like body 10 can be connected to the end face 32b via the adhesive part 40. Also, since the cotton-like body 10 can be supported by the end face 32b of the tube 30 when the tissue is dissected, the workability of blunt dissection is improved.

[0029] It is preferable that the width r3 of the inner circumferential surface 32a in the radial direction r is within ±1 mm of the width R2 in the radial direction r of the shaft portion 20. When the shape of the shaft portion 20 is cylindrical and the shape of the tube 30 is annular, if the inner diameter r3 of the tube 30 is 1.5 mm, the diameter R2 of the shaft portion 20 may be, for example, 1.42 mm.

[0030] The length L2 in the longitudinal direction Z of the portion of the shaft portion 20 inserted into the hollow interior 31 is, for example, 8 mm or more and 10 mm or less. In this way, the area of ​​the shaft portion 20 connected to the inner peripheral surface 32a is sufficient, improving the adhesion between the shaft portion 20 and the inner peripheral surface 32a.

[0031] <Action and effect> A medical swab 1 according to the present disclosure comprises a cotton-like body 10, a shaft portion 20, and a tube 30. The shaft portion 20 holds the cotton-like body 10. The tube 30 has a hollow interior 31. The hollow interior 31 is surrounded by an inner circumferential surface 32a. The shaft portion 20 is connected to the inner circumferential surface 32a via an adhesive portion 40.

[0032] This improves the adhesion between the cotton-like material 10 and the tube 30. In other words, the cotton-like material 10 is connected to the tube 30 so that the cotton-like material 10 held by the shaft portion 20 does not come off the tube 30. Therefore, by using the medical swab 1 for blunt dissection, tissue in the affected area of ​​the patient can be efficiently dissected.

[0033] In the above-mentioned medical cotton swab 1, the tube 30 has an end surface 32b. The end surface 32b is connected to the inner peripheral surface 32a. The cotton-like material 10 is connected to the end surface 32b via an adhesive part 40. In this way, the adhesion between the cotton-like material 10 and the tube 30 is further improved.

[0034] In the above-mentioned medical cotton swab 1, the tube 30 extends in the longitudinal direction Z. The inner circumferential surface 32a has a first region P1 and a second region P2. The first region P1 includes a region in which a part of the shaft portion 20 is disposed in the longitudinal direction Z. The second region P2 is adjacent to the first region P1 in the longitudinal direction Z. The surface roughness of the inner circumferential surface 32a in the first region P1 is greater than the surface roughness of the inner circumferential surface 32a in the second region P2.

[0035] This further improves the adhesion between the cotton-like material 10 and the tube 30. In other words, the cotton-like material 10 is connected to the tube 30 so that the cotton-like material 10 held by the shaft portion 20 does not come off the tube 30.

[0036] In the above-mentioned medical cotton swab 1, the direction perpendicular to the longitudinal direction Z is defined as the radial direction r. The width R1 of the cotton-like material 10 in the radial direction r is equal to or less than the width R3 of the end face 32b in the radial direction r. In this manner, the cotton-like material 10 can be connected to the end face 32b via the adhesive part 40. In addition, since the cotton-like material 10 can be supported by the end face 32b of the tube 30 when the tissue is peeled off, the workability of blunt peeling is improved.

[0037] In the medical cotton swab 1, the cotton-like body 10 has a tip portion 11a. The tip portion 11a is disposed at a position furthest from the tube 30 in the longitudinal direction Z. The tip portion 11a has a flat portion 11e extending in the radial direction r. In this way, when the medical cotton swab 1 is used for blunt dissection, the tissue can be dissected more safely without damaging it.

[0038] Embodiment 2 <Composition of medical cotton swab 1> Fig. 3 is a partially enlarged cross-sectional view of the medical cotton swab 1 according to embodiment 2. Fig. 3 corresponds to Fig. 2. The medical cotton swab 1 shown in Fig. 3 basically has the same configuration as the medical cotton swab 1 shown in Fig. 1 and Fig. 2, but differs in that the cotton-like body 10 is impregnated with an adhesive.

[0039] As shown in FIG. 3, the cotton-like body 10 includes an impregnated portion 12. The impregnated portion 12 is saturated with adhesive. The impregnated portion 12 is connected to the end face 32b of the tube 30. When the medical cotton swab 1 is manufactured, an adhesive is applied to the shaft portion 20. When the shaft portion 20 coated with the adhesive is inserted into the hollow interior 31, the adhesive penetrates into the fibers of the cotton-like body 10. In this way, the fibers are bonded together, and the strength of the impregnated portion 12 is increased. In other words, the medical cotton swab 1 can be used for a long period of time.

[0040] The embodiments disclosed herein should be considered to be illustrative and not restrictive in all respects. Unless inconsistent, at least two of the embodiments disclosed herein may be combined. The basic scope of the present disclosure is indicated by the claims, not the above description, and is intended to include all modifications within the meaning and scope of the claims.

[0041] Various aspects of the present disclosure are summarized below as appendices. (Appendix 1) A cotton-like body; A shaft portion for holding the cotton-like material; a tube having a hollow interior surrounded by an inner circumferential surface; The shaft portion is connected to the inner circumferential surface via the adhesive portion. (Appendix 2) the tube has an end surface connected to the inner circumferential surface; 2. The medical swab described in claim 1, wherein the cotton-like material is connected to the end surface via an adhesive. (Appendix 3) The tube extends longitudinally, The inner circumferential surface has a first region and a second region, the first region includes a region in which a part of the shaft portion is disposed in the longitudinal direction, The second region is adjacent to the first region in the longitudinal direction, 3. The medical swab of claim 2, wherein the surface roughness of the inner circumferential surface in the first region is greater than the surface roughness of the inner circumferential surface in the second region. (Appendix 4) If the direction perpendicular to the longitudinal direction is defined as the radial direction, 4. The medical swab of claim 3, wherein the width of the cotton-like body in the radial direction is equal to or less than the width of the end face in the radial direction. (Appendix 5) The medical cotton swab described in Appendix 4, wherein the radial width of the cotton-like body is the radial width of the end face. (Appendix 6) The medical cotton swab described in Appendix 5, wherein the width of the cotton-like body in the radial direction is 2 mm or more and 3 mm or less. (Appendix 7) 7. The medical cotton swab according to any one of claims 4 to 6, wherein the radial width of the inner circumferential surface is within ±1 mm of the radial width of the shaft portion. (Appendix 8) The cotton-like material has a tip portion, The tip portion is disposed at a position furthest from the tube in the longitudinal direction, The medical swab according to any one of Supplementary Note 4 to Supplementary Note 7, wherein the tip portion has a flat portion extending in the radial direction. (Appendix 9) 9. The medical cotton swab according to any one of Appendix 3 to Appendix 8, wherein the length of the portion of the shaft portion that is inserted into the hollow interior in the longitudinal direction is 8 mm or more and 10 mm or less. (Appendix 10) 9. The medical swab according to claim 8, wherein the length in the longitudinal direction from the end face to the tip is 8 mm or more and 10 mm or less. (Appendix 11) The medical swab according to any one of claims 1 to 10, wherein the tube is flexible. (Appendix 12) The medical cotton swab according to any one of claims 1 to 11, wherein the material constituting the tube is a fluorinated resin. (Appendix 13) The medical cotton swab according to any one of claims 1 to 12, wherein the material constituting the shaft portion is polypropylene. [Explanation of symbols]

[0042] 1 medical cotton swab, 10 cotton-like body, 11a tip portion, 11b side surface, 11c rear end surface, 11d fillet, 11e flat portion, 12 impregnated portion, 20 shaft portion, 30 tube, 31 hollow interior, 32a inner peripheral surface, 32b end surface, 32c outer peripheral surface, 40 adhesive portion, L1, L2 length, P1 first region, P2 second region, R1, R2 diameter, R3 outer diameter, r3 inner diameter, R1, R2, R3, r3 width, Z longitudinal direction, r radial direction.

Claims

1. A cotton-like body; A shaft portion for holding the cotton-like material; a tube having a hollow interior surrounded by an inner circumferential surface; A medical cotton swab, wherein the shaft portion is connected to the inner circumferential surface via an adhesive portion.

2. the tube has an end surface connected to the inner circumferential surface; The medical swab according to claim 1 , wherein the cotton-like material is connected to the end surface via the adhesive portion.

3. The tube extends longitudinally, If the direction perpendicular to the longitudinal direction is defined as the radial direction, The medical cotton swab according to claim 2 , wherein the width of the cotton-like body in the radial direction is equal to or smaller than the width of the end face in the radial direction.

4. The cotton-like material has a tip portion, The tip portion is disposed at a position furthest from the tube in the longitudinal direction, The medical swab according to claim 3 , wherein the tip portion has a flat portion extending in the radial direction.

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