WO2017094873A1

WO2017094873A1 - Wiping tip

Info

Publication number: WO2017094873A1
Application number: PCT/JP2016/085863
Authority: WO
Inventors: 石田美希; 上原康賢; 瀧本和彦; 上田麻美; 上原恵; 中野きよみ; 上田豊; 和田諒平
Original assignee: 株式会社ジェイ・エム・エス
Priority date: 2015-12-03
Filing date: 2016-12-02
Publication date: 2017-06-08
Also published as: CN108472479A; CN108472479B; KR20180090326A; JP2017099738A; JP6743379B2

Abstract

A tip (110) is provided with a tubular part (111) that can be inserted through a gap (916) between a male member (911) and an outer tube (913). When the tubular part (111) is inserted through the gap (916), the male member (911) is inserted into an inner cavity (112) of the tubular part (111). The tubular part (111) is water-absorbent.

Description

Wiping tip

The present invention relates to a wiping tip for cleaning a male connector preferably used for enteral nutrition.

Enteral nutrition is known as a method of administering liquids containing nutrients and drugs to patients who are unable to take their meals from their mouths. In enteral nutrition, a catheter is placed in a patient with the catheter inserted from the outside of the body into the digestive tract (for example, the stomach). Known catheters include a nasal catheter that is inserted from the patient's nose, a PEG (Percutaneous Endoscopic Gastrostomy) catheter that is inserted into a gastric fistula formed on the patient's abdomen, and the like. A liquid such as a nutrient, liquid food (commonly referred to as “enteral nutrient”), or a drug is administered to a patient via a catheter. When administering a liquid substance to a patient, a container storing the liquid substance and a catheter (nasal catheter, PEG catheter, etc.) placed in the patient are communicated via a flexible tube. The tube and the tube, and the tube and the catheter are connected via a connector composed of a male connector and a female connector. Conventionally, a male connector is used as an upstream (container-side) connector (hereinafter referred to as “container-side connector”) and a female connector is used as a downstream (patient-side) connector (hereinafter referred to as “patient-side connector”). Each connector was used (see, for example, Patent Document 1).

In order to prevent erroneous connection with connectors used in fields other than enteral nutrition in recent years, the male connector 910 shown in FIGS. 18A and 18B is used as a patient-side connector, and FIGS. 19A and 19B are used as container-side connectors. It is considered that the female connector 920 shown in FIG. 1 is internationally standardized as an international standard ISO80369-3 for nutritional medical devices.

A male connector (patient side connector) 910 shown in FIG. 18A and FIG. 18B has a cylindrical male member 911 and an outer cylinder 913 surrounding the male member 911. The male member 911 and the outer cylinder 913 are connected via a bottom plate 914 protruding in a flange shape along the radial direction from the base end portion of the male member 911. The outer peripheral surface 912 of the male member 911 is a tapered surface (so-called male tapered surface) whose outer diameter decreases as it approaches the tip. The male member 911 is formed with a flow path 917 penetrating the male member 911 along the longitudinal direction thereof. A female screw 915 is formed on the inner peripheral surface of the outer cylinder 913 facing the male member 911.

19A and 19B have a female connector (container-side connector) 920 having a hollow cylindrical tubular portion (female member) 921. The inner peripheral surface 922 of the tubular portion 921 is a tapered surface (so-called female tapered surface) whose inner diameter increases as it approaches the tip. A threaded projection (male thread) 925 is formed on the outer peripheral surface of the tubular portion 921.

The male connector 910 and the female connector 920 are connected by inserting the male member 911 into the tubular portion 921 and screwing the female screw 915 and the screw projection 925. Since the outer peripheral surface 912 of the male member 911 and the inner peripheral surface 922 of the tubular portion 921 are tapered surfaces having the same diameter and taper angle, they are in liquid-tight surface contact. The female screw 915 and the screw-like protrusion 925 that are screwed together constitute a lock mechanism for locking the connection state between the male connector 910 and the female connector 920. The male connector 910 and the female connector 920 are liquid-tight (property that liquid does not leak from the connecting portion between the male connector 910 and the female connector 920 even when pressure is applied to the liquid) and connection strength (connected male). The connector 910 and the female connector 920 do not separate even when a tensile force is applied.

International Publication No. 2008/152871 Pamphlet

In the male connector 910, the outer cylinder 913 surrounds the male member 911, and a female screw 915 is provided on the inner peripheral surface of the outer cylinder 913. Therefore, after performing the enteral nutrition method, the liquid substance (enteric nutrient) tends to remain in the gap 916 (for example, the valley of the female screw 915) between the male member 911 and the outer cylinder 913.

When the male connector 910 is provided at the upstream end of the catheter inserted into the patient, the male connector 910 continues to be placed in the patient together with the catheter. In the case of a PEG catheter, the catheter is usually exchanged every 1 to 3 months. If the male connector 910 in which the liquid material remains is left in the patient for a long time in this way, the male connector 910 may be in an unsanitary state. Finally, bacteria may propagate in the male connector 910, and the bacteria may enter the patient's body and cause serious complications. Therefore, it is desirable to clean the male connector 910 cleanly.

However, the distance between the outer peripheral surface 912 of the male member 911 and the female screw 915 of the outer cylinder 913 is very narrow. Accordingly, it is difficult to wipe off the liquid material adhering to the valley of the female screw 915, the bottom plate 914, etc. by inserting, for example, a cotton swab into the gap 916 between the male member 911 and the outer cylinder 913.

An object of the present invention is to provide a wiping tip that can be used to clean a male connector provided with a female screw so as to surround a male member.

The wiping tip of the present invention wipes off a male connector including a cylindrical male member, an outer cylinder surrounding the male member, and a female screw provided on an inner peripheral surface of the outer cylinder facing the male member. Used for cleaning. The said chip | tip is provided with the cylindrical part which can be inserted in the clearance gap between the said male member and the said outer cylinder. The chip is configured such that the male member is inserted into the lumen of the cylindrical portion when the cylindrical portion is inserted into the gap. The cylindrical portion has water absorption.

The cylindrical part of the chip of the present invention can be inserted into the gap between the male member of the male connector and the outer cylinder, and when the cylindrical part is inserted into the gap, the male member is inserted into the lumen of the cylindrical part. Inserted. The cylindrical part has water absorption. For this reason, if a cylindrical part is inserted in the clearance gap between a male member and an outer cylinder, the liquid substance which remained in the said clearance gap will be absorbed by the cylindrical part. By inserting / removing the tubular portion with respect to the male connector, the liquid in the gap can be wiped off by the tubular portion. As a result, the gap in the male connector can always be kept clean.

1A is a perspective view of the wiping tip according to Embodiment 1-1 of the present invention as seen from above, FIG. 1B is a perspective view as seen from below, FIG. 1C is its side view, and FIG. 1D is 1D- of FIG. It is sectional drawing along the surface containing 1D line. FIG. 2A is a perspective view showing a state immediately before use of the wiping tip according to Embodiment 1-1 of the present invention, and FIG. 2B is a sectional view thereof. FIG. 3A is a perspective view showing a method of using the wiping tip according to Embodiment 1-1 of the present invention, and FIG. 3B is a sectional view thereof. 4A is a perspective view seen from above of the wiping tip according to Embodiment 1-2 of the present invention, FIG. 4B is a perspective view seen from below, FIG. 4C is a side view thereof, and FIG. 4D is a 4D- It is sectional drawing along the surface containing 4D line. 5A is a perspective view seen from above of the wiping tip according to Embodiment 1-3 of the present invention, FIG. 5B is a perspective view seen from below, FIG. 5C is a side view thereof, and FIG. 5D is a 5D- It is sectional drawing along the surface containing 5D line. 6A is a perspective view of the wiping tip according to Embodiment 1-4 of the present invention as seen from above, FIG. 6B is a perspective view as seen from below, FIG. 6C is its side view, and FIG. 6D is 6D- of FIG. It is sectional drawing along the surface containing 6D line. 7A is a perspective view seen from above of the wiping tip according to Embodiment 2-1 of the present invention, FIG. 7B is a perspective view seen from below, FIG. 7C is a side view thereof, and FIG. 7D is a 7D- It is sectional drawing along the surface containing 7D line. FIG. 8 is a perspective view showing a state immediately before use of the wiping tip according to Embodiment 2-1 of the present invention. FIG. 9A is a perspective view showing a method of using the wiping tip according to Embodiment 2-1 of the present invention, and FIG. 9B is a sectional view thereof. 10A is a perspective view seen from above of the wiping tip according to Embodiment 2-2 of the present invention, FIG. 10B is a perspective view seen from below, FIG. 10C is a sectional view thereof, and FIG. 10D is a bottom view thereof. . FIG. 11 is a cross-sectional view showing a method of using the wiping tip according to Embodiment 2-2 of the present invention. 12A is a perspective view seen from above of the wiping tip according to Embodiment 2-3 of the present invention, FIG. 12B is a perspective view seen from below, FIG. 12C is a side view thereof, and FIG. 12D is a perspective view of FIG. It is sectional drawing along the surface containing a 12D line. 13A is a perspective view seen from above of the wiping tip according to Embodiment 3-1 of the present invention, FIG. 13B is a perspective view seen from below, FIG. 13C is its side view, and FIG. 13D is 13D- of FIG. 13C. It is sectional drawing along the surface containing a 13D line. FIG. 14 is a perspective view showing a state immediately before use of the wiping tip according to Embodiment 3-1 of the present invention. FIG. 15A is a perspective view showing a method of using the wiping tip according to Embodiment 3-1 of the present invention, and FIG. 15B is a sectional view thereof. 16A is a perspective view of the wiping tip according to Embodiment 3-2 of the present invention as viewed from above, FIG. 16B is a perspective view as viewed from below, FIG. 16C is its side view, and FIG. 16D is 16D- of FIG. Sectional drawing along the surface containing 16D line, FIG. 16E is the bottom view. 17A is a perspective view seen from above of the wiping tip according to Embodiment 3-3 of the present invention, FIG. 17B is a perspective view seen from below, FIG. 17C is a side view thereof, and FIG. 17D is a 17D- FIG. 17E is a bottom view of the cross-sectional view along the plane including the line 17D. FIG. 18A is a perspective view of a male connector being considered as ISO 80369-3. FIG. 18B is a cross-sectional view along a plane including the central axis of the male connector. FIG. 19A is a perspective view of a female connector considered as ISO 80369-3. FIG. 19B is a cross-sectional view taken along a plane including the central axis of the female connector.

In the above-described chip of the present invention, it is preferable that the cylindrical portion has a hollow cylindrical shape. Thereby, since the shape of a cylindrical part can be simplified, manufacture is easy and a low-cost chip | tip can be provided.

A projection protruding outward may be provided at the tip of the cylindrical portion. Thereby, the cleanability of a male connector improves and the insertion workability | operativity of the cylindrical part with respect to the clearance gap of a male connector improves.

The protrusion may be an annular protrusion that is continuous in the circumferential direction of the cylindrical portion. Thereby, since the intensity | strength of a cylindrical part improves, the insertion workability | operativity of the cylindrical part with respect to the clearance gap between male connectors further improves.

The above-described chip of the present invention may further include a grip portion provided with the cylindrical portion. In this case, it is preferable that the grip portion has a larger outer diameter than the cylindrical portion. Thereby, since the operator can hold | grip the holding | grip part of a chip | tip firmly, the cleaning workability | operativity of a male connector improves.

The above-described chip of the present invention may further include a grip portion provided with the cylindrical portion. In this case, it is preferable that a flat grip surface is provided on the grip portion. Thereby, the operator can clean the male connector by grasping the gripping surface of the chip, so that the workability of cleaning the male connector is improved. Further, since the position where the chip should be picked is specified, the possibility that the operator's finger touches the cylindrical portion is reduced, and the cleanliness of the cylindrical portion is easily maintained.

The above-described chip of the present invention may further include a cover cylinder surrounding the cylindrical portion. In this case, it is preferable that the said cover cylinder is comprised so that the said outer cylinder of a male connector can be inserted between the said cylindrical part and the said cover cylinder. Thereby, when cleaning the male connector, the possibility that a liquid material leaks to the outside and causes the patient's clothes to become dirty is reduced. Moreover, the outer peripheral surface of the outer cylinder of a male connector can be cleaned with the inner peripheral surface of a cover cylinder.

When the cylindrical part is inserted into the gap between the male member and the outer cylinder, a flow path through which a liquid material flows is formed between the cylindrical part and the male connector. The part may be provided with a flow path forming structure. As a result, the cylindrical portion can absorb a larger amount of liquid material, so that when the male connector is cleaned, the liquid material overflows from the outer tube of the male connector, and the outer peripheral surface of the outer tube is liquid material. This reduces the chances of getting dirty or getting the patient's clothes dirty. The flow path forming structure may be provided on either the outer peripheral surface or the inner peripheral surface of the cylindrical portion. When the flow path forming structure is provided on the outer peripheral surface of the cylindrical portion, the liquid material that may contain bacteria remaining in the gap of the male connector flows into the patient's body through the male member. Risk can also be reduced.

The flow path forming structure may be a groove provided on the outer peripheral surface or the inner peripheral surface of the cylindrical portion. Thereby, since the structure of the flow path forming structure can be simplified, the manufacture of the chip having the flow path forming structure is facilitated, and the cost of the chip can be reduced.

A screwing structure for screwing with the female screw may be provided on the outer peripheral surface of the cylindrical portion. Thereby, the cleanability of the female screw of a male connector improves. Moreover, the liquid which overflows from an outer cylinder can be reduced at the time of cleaning of a male connector.

The screwed structure may be a helical male screw that goes around the cylindrical part one or more times. Thereby, since the length of a screwing structure becomes long, many liquid substances can be absorbed by a screwing structure.

Alternatively, the screwing structure may be a protrusion provided within an angle range of less than 180 degrees with respect to the central axis of the cylindrical portion. Such protrusions are advantageous in reducing the burden on the operator when cleaning the male connector because the sliding resistance against the female screw of the male connector is small. Such protrusions include both screw-like protrusions extending along a spiral and simple protrusions protruding in a dome shape.

Hereinafter, the present invention will be described in detail while showing preferred embodiments. However, it goes without saying that the present invention is not limited to the following embodiments. Each drawing referred to in the following description shows simplified main members constituting an embodiment of the present invention for convenience of description. Therefore, the present invention can include any member not shown in the following drawings. Further, within the scope of the present invention, each member shown in the following drawings can be changed or omitted. One or more other embodiments can be combined with the embodiment described below. In the drawings shown below, the same members or elements are denoted by the same reference numerals, and duplicate descriptions thereof are omitted.

[Embodiment 1]
The wiping tip (hereinafter simply referred to as “chip”) according to Embodiment 1 of the present invention includes a cylindrical portion that can be inserted into a gap between a male member of a male connector conforming to ISO 80369-3 and an outer cylinder. A preferred specific example of the chip of Embodiment 1 is shown below.

Embodiment 1-1
1A is a perspective view seen from above the chip 110 according to Embodiment 1-1 of the present invention, FIG. 1B is a perspective view seen from below the chip 110, FIG. 1C is a side view of the chip 110, and FIG. FIG. The chip 110 has a hollow cylindrical shape with a through hole penetrating in the longitudinal direction. The inner diameter and outer diameter of the chip 110 are constant in the longitudinal direction of the chip 110. The entire chip 110 is made of a material having water absorption.

FIG. 2A is a perspective view showing a state immediately before use of the chip 110, and FIG. 2B is a sectional view thereof.

Chip 110 can be used to clean male connector 950. The male connector 950 is compliant with ISO80369-3 in the same manner as the male connector 910 shown in FIGS. 18A and 18B. In FIG. 2A and FIG. 2B, the same code | symbol is attached | subjected to the same component as the component of the male connector 910 shown to FIG. 18A and FIG. 18B, and description about them is abbreviate | omitted. The male connector 950 includes a connection portion 951 at the end opposite to the male member 911. The connecting portion 951 communicates with a flow path 917 formed in the male member 911, and an inner peripheral surface thereof is a cylindrical surface coaxial with the male member 911. Although illustration is omitted, a flexible tube is inserted and fixed in the connecting portion 951. The tube can be a catheter (nasal catheter, PEG catheter, etc.) placed in the patient. Alternatively, the tube may be a tube connected to the catheter. A pair of gripping projections 953 sandwich the connection portion 951 so that the operator can easily hold the male connector 950. The male connector 950 is merely an example, and in particular, the shape of a part not defined by ISO 80369-3 can be arbitrarily changed. For example, the shape of the gripping protrusion 953 may be changed, or the gripping protrusion 953 may be omitted. The tube may not be inserted into the connection portion 951 of the male connector 950, but the connection portion 951 may be configured to be inserted into the tube.

When performing enteral nutrition, a female connector (container-side connector) 920 shown in FIGS. 19A and 19B is connected to a male connector 950 that is a patient-side connector, and a liquid (enteral) is supplied to the patient through these. (Nutrient). Thereafter, the female connector 920 is separated from the male connector 950. As described above, a liquid material may remain in the gap 916 between the male member 911 and the outer cylinder 913 of the male connector 950 after separation. The chip 110 is used for wiping off this liquid material. As shown in FIGS. 2A and 2B, the cylindrical portion 111 having a cylindrical shape at one end of the chip 110 is opposed to the male connector 950 and is inserted into the gap 916 between the male member 911 and the outer cylinder 913. The male member 911 is inserted into the lumen 112 of the cylindrical portion 111.

3A is a perspective view showing a state where the cylindrical portion 111 of the chip 110 is inserted into the gap 916 of the male connector 950, and FIG. 3B is a cross-sectional view thereof. As shown in FIG. 3B, the cylindrical portion 111 is preferably inserted into the male connector 950 until the tip of the cylindrical portion 111 contacts the bottom plate 914 of the male connector 950. Since the cylindrical part 111 of the chip 110 has water absorption, the liquid material remaining in the gap 916 of the male connector 950 is sucked into the cylindrical part 111 when it touches the cylindrical part 111. Thereafter, the chip 110 is pulled out from the male connector 950. The liquid material is removed from the male connector 950 together with the tubular portion 111 while being held in the tubular portion 111. By inserting / removing the cylindrical portion 111 into / from the gap 916 of the male connector 950, the cylindrical portion 111 slides on the outer peripheral surface of the male member 911, the inner peripheral surface of the outer cylinder 913, and the bottom plate 914. The liquid material adhering to these can be wiped off. The solid material contained in the liquid material is also wiped away by the cylindrical portion 111 together with the liquid material. When the chip 110 is rotated with respect to the male connector 950 with the cylindrical portion 111 inserted into the male connector 950 (for example, the rotation direction is alternately reversed and rotated), the liquid wiping effect is improved.

Thus, the chip 110 of the present embodiment includes the cylindrical portion 111 having a hollow cylindrical shape at one end thereof. The cylindrical part 111 can be inserted into the gap 916 between the male member 911 and the outer cylinder 913 of the male connector 950, and the male member 911 can be inserted into the lumen 112 of the cylindrical part 111. The cylindrical part 111 has water absorption. For this reason, if the cylindrical part 111 is inserted into the gap 916 of the male connector 950, the liquid material remaining in the gap 916 is absorbed by the cylindrical part 111. By inserting and removing the cylindrical portion 111 with respect to the male connector 950, the liquid material is wiped off together with the solid material contained therein. Therefore, the inside of the gap 916 of the male connector 950 can be always kept clean by cleaning the male connector 950 using the chip 110 after performing the enteral nutrition method.

The cylindrical portion 111 has a hollow cylindrical shape. Since such a cylindrical part 111 has a simple shape, it is easy to manufacture. For this reason, the chip | tip 110 provided with the cylindrical part 111 with the high cleaning capability specialized in cleaning of the male connector 950 can be provided at low cost.

The outer diameter of the cylindrical part 111 is set so that the cylindrical part 111 can be inserted into the outer cylinder 913 of the male connector 950. In addition, the inner diameter of the tubular portion 111 is set so that the male member 911 of the male connector 950 can be inserted into the tubular portion 111. On the other hand, the outer peripheral surface of the cylindrical part 111 is separated from the thread of the female screw 915 provided in the outer cylinder 913, or the inner peripheral surface of the cylindrical part 111 is separated from the outer peripheral surface 912 of the male member 911. Then, the wiping effect of the liquid material adhering to the female screw 915 or the male member 911 may be reduced. Therefore, the outer diameter of the cylindrical portion 111 can be set to be substantially the same as or slightly larger than the inner diameter of the female screw 915. Further, the inner diameter of the cylindrical portion 111 can be set to be substantially the same as or slightly smaller than the maximum outer diameter of the outer peripheral surface 912 of the male member 911. Thereby, the favorable wiping effect of the liquid substance adhering to the inner peripheral surface of the outer cylinder 913 and the outer peripheral surface of the male member 911 is obtained, ensuring the workability of inserting the cylindrical portion 111 into the gap 916 of the male connector 950. .

It may take some time for the cylindrical portion 111 to absorb the liquid material in the gap 916. For this reason, when the cylindrical portion 111 is quickly inserted into the gap 916 of the male connector 950, the liquid material in the gap 916 may overflow from the gap 916 before being absorbed by the cylindrical portion 111. A female screw 915 is formed on the inner peripheral surface of the outer cylinder 913. Accordingly, most of the liquid material in the gap 916 rises between the cylindrical portion 111 and the outer cylinder 913 through the thread groove of the female screw 915 and overflows from the outer cylinder 913 to the outside. For this reason, there is relatively little liquid material rising through between the cylindrical part 111 and the male member 911. Therefore, the possibility that the liquid material flows into the flow path 917 of the male member 911 is low. If the male connector 950 is in poor hygiene and bacteria are growing in the gap 916, the liquid that overflows from the gap 916 when the cylindrical portion 111 is inserted into the gap 916 may contain bacteria. There is sex. However, even if the liquid material in the gap 916 overflows by inserting the cylindrical portion 111, the possibility that the overflowed liquid material flows into the flow path 917 of the male member 911 is low. Therefore, the risk of bacteria entering the patient's body is low. Even if the liquid material overflows between the tubular portion 111 and the male member 911, most of the liquid material adheres to the inner peripheral surface of the tubular portion 111, and the tubular portion. 111 is absorbed.

The chip 110 has symmetrical ends. Accordingly, the male connector 950 can be cleaned by inserting the cylindrical portion 111 ′ opposite to the cylindrical portion 111 into the male connector 950 in the same manner as described above. For example, first, one cylindrical portion 111 is inserted into the male connector 950 to wipe off most of the liquid material, and then the other cylindrical portion 111 ′ is inserted into the male connector 950 to remove the slight liquid material remaining. Can be wiped clean.

The cylindrical portion 111 is made of an arbitrary material having water absorption. For example, a water-absorbing material that can absorb water using a capillary phenomenon such as a foam or a non-woven fabric can be used. Such a water-absorbing material has a high ability to wipe off a liquid material because the solid material contained in the liquid material can be taken into the gaps in the tissue. As a material for the water absorbing material, for example, urethane, PVA (polyvinyl alcohol), silicone, polystyrene, EVA (ethylene vinyl acetate), or the like can be used. The cylindrical part 111 may contain a well-known super absorbent polymer.

It is preferable that the cylindrical portion 111 has a strength that can be inserted deeply into the gap 916 of the male connector 950, particularly preferably until reaching the bottom plate 914. However, the cylindrical portion 111 has elasticity (rubber elasticity) or flexibility that can be appropriately deformed according to a change in the outer diameter of the thread of the female screw 915 or the male tapered surface 912 of the male member 911. Is preferred. If the cylindrical portion 111 is made of a hard material, there is a possibility that a fine flaw is applied to the surface of the male connector 950 when the cylindrical portion 111 is inserted into and removed from the male connector 950. Wounds increase the possibility of germs growing. The hardness of the cylindrical portion 111 is preferably the same as or lower than the hardness of the male connector 950.

In the present embodiment, the entire chip 110 including the cylindrical portion 111 is integrally manufactured as one component with the same material. The method for manufacturing the chip 110 is not limited, but for example, a method such as press molding or transfer molding can be used.

Embodiment 1-2
4A is a perspective view seen from above the chip 120 according to Embodiment 1-2 of the present invention, FIG. 4B is a perspective view seen from below, FIG. 4C is a side view thereof, and FIG. 4D is a sectional view thereof. . The chip 120 is composed of two parts: an outer cylindrical part 125 having a hollow cylindrical shape and a solid cylindrical sealing part 126 in the outer cylindrical part 125.

The outer cylinder portion 125 is made of the material having water absorption described in the embodiment 1-1. The sealing part 126 is shorter than the outer cylinder part 125. The sealing part 126 is inserted into the outer cylinder part 125 so that one end thereof coincides with one end of the outer cylinder part 125. A portion of the chip 120 where the sealing portion 126 is inserted is a grip portion 123. A portion of the outer cylindrical portion 125 where the sealing portion 126 is not inserted is a cylindrical portion 111.

The usage method of the chip 120 of this embodiment is the same as that of the chip 110 of the embodiment 1-1. That is, the cylindrical portion 111 is inserted into the gap 916 of the male connector 950, and the male connector 950 is wiped and cleaned.

The worker can grip the grip portion 123 when the tubular portion 111 is inserted into and removed from the male connector 950. Since the grip part 123 is solid, it has high strength. For this reason, even if the gripper 123 is gripped strongly by the operator, the gripper 123 is not easily deformed so as to reduce the diameter. Therefore, the chip 120 of the embodiment 1-2 is advantageous for improving the cleaning workability of the male connector 950.

The material of the sealing part 126 is arbitrary. For example, resin materials such as polyacetal, polycarbonate, polystyrene, polyamide, polypropylene, and hard polyvinyl chloride can be used. In order to improve the strength of the grip portion 123, it is preferable to use a material that is stronger and harder than the outer tube portion 125. Of course, the sealing part 126 may be comprised with the material which has the same water absorption as the outer cylinder part 125. FIG.

The manufacturing method of the chip 120 is arbitrary. For example, the outer cylinder part 125 and the sealing part 126 may be manufactured separately, and then the sealing part 126 may be inserted into the outer cylinder part 125 to integrate them. Or after manufacturing one of the outer cylinder part 125 and the sealing part 126, you may integrate the other by this by a two-color molding method.

In the present embodiment, the outer cylindrical portion 125 and the sealing portion 126 are separate members, but the outer cylindrical portion 125 and the sealing portion 126 have water absorbency as in the first to third embodiments described later. It is also possible to manufacture the same integrally as a single part using the same material.

In the present embodiment 1-2, the sealing portion 126 is disposed only at the central portion in the longitudinal direction of the outer cylindrical portion 125, and the cylindrical portions 111 that can be inserted into the male connector 950 are provided at both ends of the outer cylindrical portion 125. It may be provided.

The embodiment 1-2 is the same as the embodiment 1-1 except for the above. The description of the embodiment 1-1 can be applied to the embodiment 1-2.

The above-described gripping portion 123 of the embodiment 1-2 can be applied to other arbitrary embodiments.

(Embodiment 1-3)
5A is a perspective view seen from above the chip 130 according to Embodiment 1-3 of the present invention, FIG. 5B is a perspective view seen from below, FIG. 5C is a side view thereof, and FIG. 5D is a sectional view thereof. .

The chip 130 includes a cylindrical portion 111 at one end and a grip portion 133 at the other end. The gripper 133 has a solid, substantially cylindrical shape, and functions in the same manner as the gripper 123 of Embodiment 1-2. The chip 130 is made of the material having water absorption described in the embodiment 1-1, and the whole is integrally manufactured as one component.

A rib (protrusion) 132 protrudes outward along the radial direction along the end edge of the cylindrical portion 111 having a hollow cylindrical shape. The rib 132 is an annular protrusion that continues in the circumferential direction of the cylindrical portion 111.

The usage method of the chip 130 of this embodiment is the same as that of the chip 110 of the embodiment 1-1. That is, the cylindrical portion 111 is inserted into the gap 916 of the male connector 950, and the male connector 950 is wiped and cleaned.

The rib 132 provided at the tip of the cylindrical portion 111 has the following effects.

First, the cleanability of the female screw 915 of the male connector 950 is improved. When the tubular portion 111 is inserted into and removed from the gap 916 of the male connector 950, the rib 132 enters the valley of the female screw 915. Thereby, the rib 132 touches and absorbs the liquid substance adhering to the bottom of the valley of the female screw 915.

Second, the cleanability of the bottom plate 914 of the male connector 950 is improved. Since the rib 132 is provided at the tip of the cylindrical portion 111, the thickness at the tip of the cylindrical portion 111 (the dimension of the cylindrical portion 111 along the radial direction) increases by the amount of the rib 132. For this reason, when the front-end | tip of the cylindrical part 111 is made to contact | abut to the baseplate 914, the contact area of the cylindrical part 111 and the baseplate 914 expands. Therefore, the cylindrical part 111 can wipe off the bottom plate 914 directly over a wider area.

Third, the workability of inserting the cylindrical portion 111 into the male connector 950 is improved. Since the rib 132 is provided at the tip of the cylindrical portion 111, the strength of the cylindrical portion 111 is improved. For this reason, when the cylindrical part 111 is inserted into the gap 916 of the male connector 950, the cylindrical part 111 is unlikely to undergo deformation such as bending. Therefore, the tip of the cylindrical portion 111 can be easily inserted into the gap 916 of the male connector 950 until it reaches the bottom plate 914 of the male connector 950.

The outer diameter of the cylindrical part 111 at the rib 132 is set in consideration of the workability of inserting the male connector 950 into the gap 916 and the wiping property of the liquid material attached to the male connector 950.

The rib 132 does not need to be continuous over the entire circumference of the cylindrical portion 111, and may be a protrusion divided in the circumferential direction. Since the plurality of protrusions divided in the circumferential direction can easily enter the valley of the female screw 915 of the male connector 950, it is advantageous for improving the wiping property of the liquid material in the female screw 915. On the other hand, the rib 132 being an annular protrusion as in the above example is advantageous in improving the strength of the cylindrical portion 111.

Embodiment 1-3 is the same as Embodiment 1-1 except for the above. The description of the embodiment 1-1 can be similarly applied to the embodiment 1-3.

The protrusions (ribs) described in Embodiment 1-3 can be applied to the cylindrical portion of the chip of any other embodiment.

Embodiment 1-4
6A is a perspective view seen from above the chip 140 according to Embodiment 1-4 of the present invention, FIG. 6B is a perspective view seen from below, FIG. 6C is a side view thereof, and FIG. 6D is a sectional view thereof. .

The chip 140 includes a cylindrical portion 111 at one end and a grip portion 143 at the other end. The gripping part 143 has a solid, substantially cylindrical shape, and is coaxial with the cylindrical part 111, like the gripping part 133 of Embodiment 1-3. However, unlike Embodiment 1-3, the grip portion 143 has a larger outer diameter than the cylindrical portion 111. The chip 140 is made of the water-absorbing material described in the embodiment 1-1, and the whole is integrally manufactured as one component.

The usage method of the chip 140 of this embodiment is the same as that of the chip 110 of the embodiment 1-1. That is, the cylindrical portion 111 is inserted into the gap 916 of the male connector 950, and the male connector 950 is wiped and cleaned.

The operator can grasp the grasping portion 143 and insert / remove the tubular portion 111 into / from the male connector 950. The grip part 143 has a larger outer diameter than the cylindrical part 111. For this reason, the operator can hold the holding part 143 firmly and easily applies force to the chip 140. This is advantageous in improving the cleaning workability of the male connector 950.

The grip part 143 does not have to be solid, and may have, for example, a hollow cylindrical shape.

Embodiment 1-4 is the same as Embodiment 1-1 except for the above. The description of Embodiment 1-1 can be similarly applied to Embodiment 1-4.

The diameter-enlarged gripping part described in Embodiment 1-4 can be applied to the chip gripping part of any other embodiment.

[Embodiment 2]
The chip according to the second embodiment of the present invention further includes a cover cylinder that surrounds the cylindrical portion. A preferred specific example of the chip of the second embodiment is shown below.

Embodiment 2-1
7A is a perspective view seen from above the chip 210 according to Embodiment 2-1 of the present invention, FIG. 7B is a perspective view seen from below, FIG. 7C is a side view thereof, and FIG. 7D is a sectional view thereof. .

The chip 210 includes a cylindrical portion 111 and a cover tube 211 at one end, and a grip portion 213 at the other end. The cover cylinder 211 has a cylindrical shape arranged coaxially with the cylindrical portion 111. The cover tube 211 is spaced apart from the tubular part 111 in the radial direction and surrounds the tubular part 111. The grip portion 213 has a solid substantially cylindrical shape that is coaxial with the cylindrical portion 111 and the cover tube 211. The grip portion 213 has an outer diameter larger than that of the cover cylinder 211. However, this invention is not limited to this, For example, the outer diameter of the holding part 213 may be the same as the outer diameter of the cover cylinder 211, and may be smaller than this. The chip 210 is made of the water-absorbing material described in the embodiment 1-1, and the whole is integrally manufactured as one component.

The usage method of the chip 210 of the present embodiment is the same as that of the chip 110 of the embodiment 1-1. That is, as shown in FIG. 8, the chip 210 is opposed to the male connector 950. Then, the cylindrical portion 111 of the chip 210 is inserted into the gap 916 between the male member 911 and the outer cylinder 913 of the male connector 950.

FIG. 9A is a perspective view showing the chip 210 in use, and FIG. 9B is a cross-sectional view thereof. The cylindrical portion 111 of the chip 210 is inserted into the gap 916 of the male connector 950. The outer cylinder 913 of the male connector 950 is inserted between the cylindrical portion 111 of the chip 210 and the cover cylinder 211. As in the case of the embodiment 1-1, the cylindrical portion 111 can wipe off the liquid material remaining in the gap 916 of the male connector 950.

As described in Embodiment 1-1, when the cylindrical portion 111 is quickly inserted into the gap 916 of the male connector 950, the liquid material in the gap 916 overflows from the gap 916 through the screw groove of the female screw 915. Sometimes. As shown in FIG. 9B, the outer cylinder 913 is accommodated in the cover cylinder 211 when the cylindrical portion 111 is inserted into the gap 916. Therefore, most of the liquid material overflowing from the gap 916 remains in the cover cylinder 211. The liquid substance retained in the cover cylinder 211 adheres to and is absorbed by the outer peripheral surface of the cylindrical portion 111 or the inner peripheral surface of the cover cylinder 211. A part of the liquid overflowing from the gap 916 may flow toward the outside through between the cover cylinder 211 and the outer cylinder 913. This liquid material is absorbed by the inner peripheral surface of the cover cylinder 211. As a result, when the male connector 950 is cleaned, problems such as leakage of liquid to the outside and contamination of the patient's clothes are unlikely to occur. Furthermore, the outer peripheral surface of the outer cylinder 913 of the male connector 950 can be cleaned with the inner peripheral surface of the cover cylinder 211.

The inner diameter of the cover tube 211 can be set arbitrarily. In one embodiment, the inner diameter of the cover cylinder 211 is set to be the same as or slightly larger than the outer diameter of the outer cylinder 913 so that the outer cylinder 913 of the male connector 950 can be easily accommodated in the cover cylinder 211. May be. In another embodiment, the inner diameter of the cover cylinder 211 is set slightly smaller than the outer diameter of the outer cylinder 913 so that the liquid overflowing from the gap 916 can be reliably absorbed by the inner peripheral surface of the cover cylinder 211. May be. In this case, the outer cylinder 913 can be inserted into the cover cylinder 211 by configuring the cover cylinder 211 with a deformable soft material. In yet another embodiment, the inner diameter of the cover cylinder 211 may be set to be the same as the outer diameter of the outer cylinder 913.

In the present embodiment, the inner peripheral surface of the cover cylinder 211 is a smooth cylindrical surface, but the present invention is not limited to this. For example, a convex portion or a concave portion may be formed on the inner peripheral surface of the cover cylinder 211. Thereby, since the effective area of the inner peripheral surface of the cover cylinder 211 is expanded, the ability of the cover cylinder 211 to absorb the liquid material is improved. Although a convex part or a recessed part is not limited, For example, it can comprise by the rib-shaped protrusion and / or groove | channel extended in parallel with the up-down direction (direction where the cylindrical part 111 is inserted / extracted).

In the present embodiment, the cover tube 211 is made of a material having water absorption, but may be made of a material having no water absorption. Even if the cover cylinder 211 does not absorb water, the liquid material overflowing from the gap 916 is retained in the cover cylinder 211 and absorbed by the outer peripheral surface of the cylindrical portion 111.

Since the gripping part 213 has an outer diameter larger than that of the cylindrical part 111, it is advantageous for improving the gripping property of the chip 210 as in the gripping part 143 of the embodiment 1-4. As described in Embodiment 1-4, the grip portion 213 does not need to be solid, and may have, for example, a hollow cylindrical shape.

The embodiment 2-1 is the same as the embodiment 1-1 except for the above. The description of the embodiment 1-1 can be similarly applied to the embodiment 2-1.

The cover cylinder described in the present embodiment 2-1 can be applied to the chip of any other embodiment.

Embodiment 2-2
10A is a perspective view seen from above the chip 220 according to Embodiment 2-2 of the present invention, FIG. 10B is a perspective view seen from below, FIG. 10C is a sectional view thereof, and FIG. 10D is a bottom view thereof. .

The chip 220 is substantially the same as the chip 210 of the embodiment 2-1. However, the chip 220 is different from the chip 210 in that a plurality of grooves 221 parallel to the vertical direction (the direction in which the cylindrical part 111 is inserted and removed) is provided on the outer peripheral surface of the cylindrical part 111. The chip 220 is made of the water-absorbing material described in the embodiment 1-1, and the whole is integrally manufactured as one component.

The usage method of the chip 220 of this embodiment is the same as that of the chip 210 of the embodiment 2-1. That is, as shown in FIG. 11, the cylindrical part 111 is inserted into the gap 916 of the male connector 950, and the male connector 950 is wiped and cleaned.

The operation of the groove 221 will be described.

As described in the embodiment 1-1, when the cylindrical portion 111 is inserted into the gap 916 of the male connector 950, the liquid in the gap 916 overflows from the gap 916 through the thread groove of the female screw 915. There is. However, when the cylindrical portion 111 is instantaneously inserted into the gap 916, or when the amount of liquid remaining in the gap 916 is large, all the liquid passes through the thread groove of the female screw 915. However, the liquid substance which rises between the cylindrical part 111 and the male member 911 becomes relatively large. As a result, there is a high risk that a liquid material that may contain bacteria flows into the flow path 917 of the male member 911.

In the present embodiment 2-2, the groove 221 is provided on the outer peripheral surface of the cylindrical portion 111. Therefore, as can be easily understood from FIG. 11, when the cylindrical portion 111 is inserted into the gap 916, the female screw 915 is used as a flow path through which the liquid material flows between the cylindrical portion 111 and the outer cylinder 913. A groove 221 is secured in addition to the screw groove. Therefore, even in the above case, a large amount of liquid material rises between the cylindrical portion 111 and the outer cylinder 913 and overflows from the outer cylinder 913 to the outside. As a result, the amount of liquid that rises between the cylindrical portion 111 and the male member 911 is reduced, and the possibility that the liquid will flow into the flow path 917 of the male member 911 can be further reduced. Therefore, the groove 221 is advantageous for further reducing the risk that bacteria together with the liquid substance enter the patient's body.

Also, the groove 221 enlarges the effective area of the outer peripheral surface of the cylindrical portion 111. For this reason, in the process in which the liquid material rises between the tubular portion 111 and the outer tube 913, more liquid material is absorbed by the tubular portion 111. Accordingly, the amount of liquid material overflowing from the outer cylinder 913 is reduced. This is advantageous in preventing a situation in which the outer peripheral surface of the outer cylinder 913 of the male connector 950 is soiled with a liquid material, or the liquid material leaks to the outside and soils the patient's clothes.

Furthermore, the chip 220 includes a cover cylinder 211. For this reason, as in the case of the embodiment 2-1, when the male connector 950 is cleaned, problems such as leakage of liquid to the outside and contamination of the patient's clothes are unlikely to occur. Further, the outer peripheral surface of the outer cylinder 913 of the male connector 950 can be cleaned with the inner peripheral surface of the cover cylinder 211.

In this embodiment, the groove is formed on the outer peripheral surface of the cylindrical portion 111, but the present invention is not limited to this. A structure in which a flow path through which a liquid material in the gap 916 flows when the cylindrical portion 111 is inserted into the gap 916 of the male connector 950 is formed between the cylindrical portion 111 and the male connector 950 (flow path forming structure) ) May be provided in the cylindrical portion 111. The flow path forming structure is not limited and can be any convex or concave portion. For example, the flow path forming structure may be a plurality of ribs (projections) parallel to the vertical direction (the direction in which the tubular portion 111 is inserted and removed). Alternatively, the grooves and ribs provided alternately may be used. The groove and the rib need not be parallel to the vertical direction, and may be inclined with respect to the vertical direction, for example.

The above-described flow path forming structure may be formed on the inner peripheral surface of the cylindrical portion 111 in addition to or instead of the outer peripheral surface of the cylindrical portion 111. In this case, when the cylindrical portion 111 is inserted into the gap 916 of the male connector 950, the liquid material in the gap 916 can rise through the flow path forming structure between the cylindrical portion 111 and the male member 911. For this reason, the quantity of the liquid substance which goes up between the cylindrical part 111 and the outer cylinder 913 reduces. Further, since the flow path forming structure enlarges the effective area of the inner peripheral surface of the cylindrical portion 111, more liquid material is absorbed by the cylindrical portion 111. As a result, the amount of liquid material that rises between the tubular portion 111 and the outer tube 913 and overflows from the outer tube 913 is reduced. By appropriately setting the cross-sectional area and length of the flow path forming the flow path forming structure formed on the inner peripheral surface of the cylindrical portion 111, the flow path of the male member 911 through the flow path forming structure It is possible to reduce the amount of liquid flowing into 917.

Embodiment 2-2 is the same as Embodiment 2-1 except for the above. The description of the embodiment 2-1 can be similarly applied to the embodiment 2-2.

The flow path forming structure described in the present embodiment 2-2 can be applied to the chip of any other embodiment. The flow path forming structure can also be applied to a chip that does not include a cover cylinder.

(Embodiment 2-3)
12A is a perspective view seen from above the chip 230 according to Embodiment 2-3 of the present invention, FIG. 12B is a perspective view seen from below, FIG. 12C is a side view thereof, and FIG. 12D is a sectional view thereof. .

As best shown in FIG. 12D, the chip 230 has substantially no portion corresponding to the grip portion 213 that the chip 210 (see FIGS. 7A to 7D) of Embodiment 2-1 has. . The chip 230 includes a top plate 233 swelled in a dome shape, and a cylindrical part 111 and a cover cylinder 211 are provided on the lower surface thereof. The chip 230 is made of the material having water absorption described in the embodiment 1-1, and the whole is integrally manufactured as one component.

The usage method of the chip 230 of this embodiment is the same as that of the chip 210 of the embodiment 2-1. That is, the cylindrical portion 111 is inserted into the gap 916 of the male connector 950, and the male connector 950 is wiped and cleaned.

The chip 230 does not include the grip portion 213 (see FIGS. 7A to 7D). The operator can grip the outer peripheral surface of the cover tube 211 when inserting and removing the tubular portion 111 into the gap 916 of the male connector 950. By gripping the cover tube 211 in the diameter direction, the cover tube 211 is deformed so as to be slightly reduced in diameter in the diameter direction. If the cover cylinder 211 is gripped in a state where the cylindrical portion 111 is inserted into the gap 916 of the male connector 950, the inner peripheral surface of the cover cylinder 211 is pressed against the outer peripheral surface of the outer cylinder 913 of the male connector 950. This is advantageous for improving the cleanability of the outer peripheral surface of the outer cylinder 913.

As can be understood from the present embodiment, when the cover tube 211 is provided, the male connector 950 can be cleaned even if the grip portion 213 (see FIGS. 7A to 7D) is omitted or the vertical dimension thereof is reduced. Substantial trouble does not occur. Rather, it is possible to reduce the size of the chip.

The outer periphery of the tubular portion 111 is formed in the chip 230 of the present embodiment 2-3 so that the flow path through which the liquid material flows between the tubular portion 111 and the male connector 950 described in the embodiment 2-2. You may provide a flow-path formation structure (for example, a convex part or a recessed part) in a surface or an internal peripheral surface.

This Embodiment 2-3 is the same as Embodiment 2-1 except for the above. The description of the embodiment 2-1 can be similarly applied to the embodiment 2-3.

[Embodiment 3]
In the chip according to the third embodiment of the present invention, a threaded structure that is threadedly engaged with the female screw 915 of the male connector 950 is provided on the outer peripheral surface of the cylindrical portion. A preferred specific example of the chip of Embodiment 3 is shown below.

(Embodiment 3-1)
13A is a perspective view of the chip 310 according to Embodiment 3-1 of the present invention as seen from above, FIG. 13B is a perspective view as seen from below, FIG. 13C is its side view, and FIG. 13D is its cross-sectional view. .

The chip 310 includes a cylindrical portion 111 at one end and a grip portion 313 at the other end.

A male screw (screwed structure) 312 is provided on the outer peripheral surface of the cylindrical portion 111. The male screw 312 is a spiral protrusion that goes around the outer peripheral surface of the cylindrical portion 111 one or more times. The male screw 312 can be screwed with the female screw 915 of the male connector 950.

The grip portion 313 has a hollow cylindrical shape, and its outer diameter is substantially the same as the thread diameter of the male screw 312. However, the shape of the holding part 313 is not limited to this. For example, the outer diameter of the grip portion 313 may be larger or smaller than the thread diameter of the male screw 312. The grip portion 313 having an outer diameter smaller than the thread diameter of the male screw 312 can be advantageous for improving the mold removal property when the entire chip 310 is manufactured as a single component. Similar to the grip portion 123 of the embodiment 1-2, a sealing portion may be inserted into the grip portion 313, such as the grip portion 133 of the embodiment 1-3 and the grip portion 143 of the embodiment 1-4. In addition, the grip portion 313 may have a solid substantially cylindrical shape.

The chip 310 is made of the water-absorbing material described in the embodiment 1-1, and the whole is integrally manufactured as one component.

The usage method of the chip 310 of this embodiment is the same as that of the chip 110 of the embodiment 1-1. That is, the cylindrical portion 111 is inserted into the gap 916 of the male connector 950, and the male connector 950 is wiped and cleaned.

However, unlike Embodiment 1-1, in Embodiment 3-1, the male screw 312 must be screwed into the female screw 915 of the male connector 950 in order to insert the tubular portion 111 into the gap 916. . That is, as shown in FIG. 14, the cylindrical portion 111 is screwed into the gap 916 of the male connector 950 while the chip 310 is opposed to the male connector 950 and the chip 310 is rotated with respect to the male connector 950.

FIG. 15A is a perspective view showing a state in which the cylindrical portion 111 is most deeply screwed into the gap 916 of the male connector 950, and FIG. 15B is a cross-sectional view thereof. The cylindrical portion 111 of the chip 310 is inserted into a gap 916 between the male member 911 and the outer cylinder 913 of the male connector 950. The male screw 312 of the cylindrical part 111 and the female screw 915 of the outer cylinder 913 are screwed together. When separating the chip 310 from the male connector 950, it is necessary to rotate the chip 310 with respect to the male connector 950 in the opposite direction to release the male screw 312 and the female screw 915.

Since the cylindrical part 111 and the male screw 312 have water absorption properties, the liquid remaining in the gap 916 can be wiped off with the cylindrical part 111 and the male screw 312 by inserting and removing the cylindrical part 111 from the male connector 950. .

The effect of the male screw 312 will be described.

First, the cleanability of the female screw 915 of the male connector 950 is improved. When the cylindrical portion 111 is inserted into and removed from the male connector 950, the thread of the male screw 312 slides while being inserted into the screw groove of the female screw 915. For this reason, the liquid remaining in the thread groove of the female screw 915 is likely to come into contact with the thread of the male screw 312. Therefore, the liquid material adhering to the bottom of the valley of the female screw 915 can be wiped off reliably.

Second, the liquid material overflowing from the outer cylinder 913 when the male connector 950 is cleaned is reduced. When the male thread 312 is not provided in the cylindrical part 111, when the cylindrical part 111 is inserted into the gap 916 of the male connector 950 as described in the embodiment 1-1, the liquid material in the gap 916 becomes the female screw. A situation may occur in which the space between the cylindrical portion 111 and the outer cylinder 913 rises through the screw groove 915 and overflows from the outer cylinder 913 to the outside. On the other hand, in the present embodiment 3-1, the thread groove of the female screw 915 that becomes a flow path through which the liquid material flows is closed by inserting the thread of the male screw 312. For this reason, the liquid material loses its destination, and the amount of the liquid material absorbed by the cylindrical portion 111 increases. As a result, the liquid material overflowing from the outer cylinder 913 is reduced. Further, in order to insert the cylindrical portion 111 into the gap 916 of the male connector 950, it is necessary to rotate the chip 310 with respect to the male connector 950. Therefore, it takes a longer time to insert the tubular portion 111 into the gap 916 of the male connector 950 than in the first and second embodiments in which the tubular portion 111 without the male screw 312 is inserted into the gap 916. . Accordingly, the amount of liquid material absorbed by the cylindrical portion 111 increases. As a result, the liquid material overflowing from the outer cylinder 913 is reduced.

Embodiment 3-1 is the same as Embodiment 1-1 except for the above. The description of the embodiment 1-1 can be similarly applied to the embodiment 3-1.

The male screw (screwed structure) described in Embodiment 3-1 can be applied to the cylindrical portion of the chip of any other embodiment.

Embodiment 3-2
16A is a perspective view seen from above the chip 320 according to Embodiment 3-2 of the present invention, FIG. 16B is a perspective view seen from below, FIG. 16C is a side view thereof, FIG. 16D is a sectional view thereof, FIG. 16E is a bottom view thereof.

This Embodiment 3-2 is different from Embodiment 3-1 in the following points. First, although the screwing structure provided on the outer peripheral surface of the cylindrical portion 111 is the spiral male screw 312 that circulates the cylindrical portion 111 one or more times in the circumferential direction in the embodiment 3-1. On the other hand, in the present embodiment 3-2, there are two screw-like projections (screwed structure) 322 extending within an angle range of less than 180 degrees with respect to the central axis 320a. Second, the grip portion 323 has a solid, substantially cylindrical shape, like the grip portion 133 of Embodiment 1-3. However, a part of the outer peripheral surface of the grip portion 323 is cut off, and two planes (grip surfaces) 324 substantially parallel to the central axis 320a are formed on the grip portion 323. The two grip surfaces 324 are parallel to each other. A stepped surface 325 that is substantially perpendicular to the longitudinal direction of the chip 320 is formed between the gripping surface 324 and the cylindrical surface closer to the cylindrical portion 111 due to the difference in external dimension between the both. Note that the step surface 325 is not limited to the present embodiment, and may be inclined so as to be separated from the central axis 320a as approaching the cylindrical portion 111, for example. The step surface 325 does not have to be an accurate plane, and may be, for example, a cylindrical concave surface or convex surface.

The chip 320 is made of the water-absorbing material described in the embodiment 1-1, and the whole is integrally manufactured as one part.

The usage method of the chip 320 of this embodiment is the same as that of the chip 310 of the embodiment 3-1. That is, the cylindrical portion 111 is inserted into the gap 916 of the male connector 950, and the male connector 950 is wiped and cleaned.

Like the male screw 312 of Embodiment 3-1, the screw-like protrusion 322 is screwed with the female screw 915 of the male connector 950. For this reason, the screw-shaped protrusion 322 has the same effect as the male screw 312 of the embodiment 3-1.

However, the screw-like protrusion 322 of the present embodiment does not go around the cylindrical portion 111, and the length thereof is shorter than the male screw 312 of the embodiment 3-1. Therefore, the sliding resistance with respect to the female screw 915 is smaller in the screw-like projection 322 of the present embodiment 3-2 than the male screw 312 of the embodiment 3-1. Therefore, the cylindrical portion 111 can be inserted into and removed from the male connector 950 simply by applying a smaller rotational force to the chip 320 than in Embodiment 3-1. Thus, the screw-like protrusion 322 of this embodiment is advantageous in reducing the burden on the operator when cleaning the male connector 950.

Further, since the flat grip surface 324 is provided on the grip portion 323, the operator can easily apply a rotational force to the chip 320 by gripping the grip surface 324. Further, when inserting the cylindrical portion 111 into the male connector 950, the operator can easily apply a force toward the male connector 950 to the stepped surface 325 adjacent to the gripping surface 324. For this reason, the gripping surface 324 and the stepped surface 325 are also advantageous in reducing the burden on the operator when cleaning the male connector 950. In addition, the operator naturally grips the chip 320 with the gripping surface 324, and the stepped surface 325 prevents the finger gripping the gripping surface 324 from moving to the cylindrical portion 111 side. The surface 325 is advantageous in preventing the cleanliness of the tubular portion 111 from being lowered by the touch of the operator's finger.

The number of the grip surfaces 324 provided on the grip portion 323 is not necessarily two, and may be one or three or more. When three or more gripping surfaces 324 are provided, it is preferable to arrange them at equiangular intervals with respect to the center axis of the chip so that the gripping surfaces 324 form a regular polygonal column surface.

The grip surface 324 is not limited to a plane formed by removing a part of the cylindrical surface of the grip portion 323 as in the present embodiment. For example, the gripping surface may be configured by a plane that is in contact with the cylindrical surface of the gripping portion 323. In this case, the step surface 325 adjacent to the gripping surface is not formed.

The outer diameter of the grip portion 323 is not necessarily the same as the outer diameter of the cylindrical portion 111, and may be larger or smaller.

Embodiment 3-2 is the same as Embodiment 3-1 except for the above. The description of the embodiment 3-1 can be similarly applied to the embodiment 3-2.

At least one of the screw-like protrusion (screw-engagement structure), the gripping surface, and the step surface described in the present embodiment 3-2 can be applied to the chip of any other embodiment.

Embodiment 3-3
17A is a perspective view seen from above the chip 330 according to Embodiment 3-3 of the present invention, FIG. 17B is a perspective view seen from below, FIG. 17C is a side view thereof, FIG. 17D is a sectional view thereof, FIG. 17E is a bottom view thereof.

In Embodiment 3-3, the screw structure provided on the outer peripheral surface of the cylindrical portion 111 has four screw protrusions (screw structure) extending within an angle range of less than 90 degrees with respect to the central axis 330a. ) 332, which is different from the embodiment 3-2 in which the two screw protrusions 322 extend within an angle range of 90 degrees or more and less than 180 degrees with respect to the central axis. The chip 330 is made of the water-absorbing material described in Embodiment 1-1, and the whole is integrally manufactured as one component.

The usage method of the chip 330 of this embodiment is the same as that of the chip 320 of the embodiment 3-2. The screw-like protrusion 332 of the present embodiment does not go around the cylindrical portion 111, and the length thereof is shorter than the male screw 312 of the embodiment 3-1. Therefore, the sliding resistance with respect to the female screw 915 is smaller in the screw-like projection 332 of the present embodiment 3-3 than the male screw 312 of the embodiment 3-1. Therefore, similarly to the embodiment 3-2, the burden on the operator when cleaning the male connector 950 can be reduced.

The cylindrical portion 111 is provided with two screw protrusions 322 in the embodiment 3-2 and four screw protrusions 332 in the embodiment 3-3. It is not limited and is arbitrary. Preferably, two or more screw-shaped protrusions are provided at equiangular intervals with respect to the center axis of the chip. The angle at which one screw-like projection extends with respect to the center axis of the chip can also be set arbitrarily. The upper limit of the angle of the spiral projection is not limited, but is preferably less than 180 degrees, more preferably less than 120 degrees, and particularly preferably less than 90 degrees. The lower limit of the angle of the spiral projection is not limited, but is preferably 10 degrees or more, more preferably 30 degrees or more, and particularly preferably 45 degrees or more. In general, when the angle of the screw-shaped protrusion is reduced, the amount of liquid material absorbed by the screw-shaped protrusion is reduced.

As long as the screwing structure provided on the outer peripheral surface of the cylindrical portion 111 can be screwed with the female screw 915 of the male connector 950, the male screw 312 of the embodiment 3-1 or the embodiments 3-2 and 3-3 are used. It is not limited to the

spiral projections

322 and 332 extending along the spiral. For example, it may be a simple protrusion that protrudes in a dome shape from the outer peripheral surface of the cylindrical portion 111. In this case, the number of protrusions is arbitrary, but preferably two or more protrusions are provided at equiangular intervals with respect to the central axis of the chip.

Embodiment 3-3 is the same as Embodiment 3-2 except for the above. The description of the embodiment 3-2 can be similarly applied to the embodiment 3-3.

The screw-like protrusions or protrusions (screwed structure) described in Embodiment 3-3 can be applied to the cylindrical portion of the chip according to any other embodiment.

The above embodiments 1 to 3 are merely examples. The present invention is not limited to the above embodiment, and can be modified as appropriate.

In the above embodiment, the tip portion other than the cylindrical portion is also made of a material having water absorption, but the present invention is not limited to this. For example, only the cylindrical portion inserted into the gap 916 of the male connector 950 is made of a material having water absorption, and the other chip portion is made of any material (for example, a material having no water absorption, a high-strength material, etc. Etc.).

The outer diameter and inner diameter of the cylindrical portion 111 can be arbitrarily set as long as they can be inserted into the gap 916 of the male connector 960. For example, the outer diameter of the cylindrical portion 111 may be smaller than the inner diameter of the female screw 915, and the inner diameter of the cylindrical portion 111 may be larger than the maximum outer diameter of the outer peripheral surface 912 of the male member 911. When the cylindrical portion 111 is inserted into the gap 916, even if there is a gap in the radial direction between the cylindrical portion 111 and the female screw 915 and / or between the cylindrical portion 111 and the male member 911, If the cylindrical part 111 is eccentric with respect to the male connector 950, the liquid substance adhering to the inner peripheral surface of the outer cylinder 913 and the outer peripheral surface of the male member 911 can be easily wiped off by the cylindrical part 111.

In the above embodiment, the inner peripheral surface of the cylindrical portion is a cylindrical surface. However, a female tapered surface that fits on the outer peripheral surface (male tapered surface) 912 of the male member 911 inserted into the cylindrical portion (for example, The same taper surface as the female taper surface 922 of the female connector 920 may be used.

In the above embodiment, the cylindrical portion has a hollow cylindrical shape, but a slit (narrow cut) or a hole may be formed in the cylindrical shape. The slits and holes improve water absorption by expanding the effective area of the cylindrical part, secure a flow path for the liquid substance in the gap 916 to flow out of the outer cylinder 913, or the liquid substance and the solid substance contained therein This can be advantageous for improving the wiping effect of the wiping. The slit can be formed, for example, with a predetermined length upward from the tip (lower end) of the cylindrical portion. The hole may be either a through-hole that penetrates the cylindrical part or a non-through hole (that is, a simple recess) that does not penetrate the cylindrical part. The holes may extend within the cylindrical portion along the radial direction, along the longitudinal direction of the chip, or spirally with respect to the central axis of the chip. For example, a hole along the longitudinal direction of the chip may extend from the tip of the cylindrical part to the gripping part, and may further penetrate the chip. The shape of the hole is arbitrary such as a circle, an ellipse, and a slot.

The configuration of the grip portion provided with the cylindrical portion 111 is not limited to the above-described embodiment, and is arbitrary. The shape of the outer peripheral surface of the grip portion is not limited to a cylindrical surface, and may be, for example, an arbitrary polygonal column surface (triangular column surface, quadrangular column surface, hexagonal column surface, octagonal column surface, etc.). A flat surface or a concave surface (including a concave portion) may be provided on the outer peripheral surface of the gripping portion, and a dome-shaped (hemispherical) or rib-shaped projection, or an uneven surface including a convex portion and a concave portion is provided. Also good. The material of the gripping part, the hardness, the outer dimensions, the length along the longitudinal direction of the chip, etc. are also arbitrary. The grip portion may be made of a material different from that of the cylindrical portion 111.

In order to maintain the cleanliness of the cylindrical portion 111, a configuration may be provided in the chip so that the operator does not unnecessarily touch the cylindrical portion 111. This configuration is not limited, but for example, a visual line such as a line along the boundary between the grip portion and the cylindrical portion 111, or coloring the grip portion in a different color from the cylindrical portion 111, etc. It is possible to make the operator recognize the grip portion through, or a convex portion (for example, an annular projection continuous in the circumferential direction) or a concave portion (radially extending) between the grip portion and the tubular portion 111. For example, an annular groove that is continuous in the circumferential direction) is provided, or the outer dimension of the gripping part is made smaller than the cylindrical part 111 so that a step is formed between the gripping part and the cylindrical part 111, The gripping surface 324 (refer to FIG. 16A), a concave / convex shape, or the like is provided to make it difficult for the operator's finger to touch the cylindrical portion 111, or to allow the operator to recognize the gripping portion through touch. May be.

In the above embodiment, the male connector to be cleaned is provided at the upstream end of the catheter inserted into the patient. However, a male connector is not limited to this, For example, the male connector provided in the upstream end of the tube (extension tube) which connects the said catheter and the tube connected to the container may be sufficient.

The chip of the present invention may be a disposable type that is discarded every time the male connector is cleaned, or is repeatedly used for cleaning the male connector by cleaning the male connector, washing with water, and drying. It may be a usage type.

The application field of the present invention is not limited, but can be preferably used as a male connector cleaning tool in accordance with ISO 80369-3. In particular, it is suitable as a cleaning tool for a male connector attached to the upstream end of a catheter inserted into a patient's body for performing enteral nutrition.

110, 120, 130, 140, 210, 220, 230, 310, 320, 330 Wiping tip 111 cylindrical part 112 cylindrical part lumen 132

protrusion

123, 133, 143, 213, 313, 323 gripping part 211 cover cylinder 221 groove (channel formation structure)
312 Male thread (screwed structure)
322, 332 screw projection (screwed structure)
324 Grip surface 950 Male connector 911 Male member 913 Outer cylinder 915 Female screw 916 Clearance between male member and outer cylinder

Claims

A wiping tip for wiping and cleaning a male connector comprising a cylindrical male member, an outer cylinder surrounding the male member, and a female screw provided on an inner peripheral surface of the outer cylinder facing the male member. There,
A cylindrical portion that can be inserted into a gap between the male member and the outer cylinder,
When the cylindrical part is inserted into the gap, the male member is configured to be inserted into the lumen of the cylindrical part,
The wiping tip, wherein the cylindrical part has water absorption.
The wiping tip according to claim 1, wherein the cylindrical portion has a hollow cylindrical shape.
The wiping tip according to claim 1 or 2, wherein a protrusion protruding outward is provided at a tip of the cylindrical portion.
The wiping tip according to claim 3, wherein the protrusion is an annular protrusion that is continuous in a circumferential direction of the cylindrical portion.
A gripping portion provided with the tubular portion;
The wiping tip according to any one of claims 1 to 4, wherein the grip portion has a larger outer diameter than the cylindrical portion.
A gripping portion provided with the tubular portion;
The wiping tip according to any one of claims 1 to 5, wherein the gripping portion is provided with a flat gripping surface.
A cover cylinder surrounding the cylindrical part;
The wipe according to any one of claims 1 to 6, wherein the cover cylinder is configured such that the outer cylinder of the male connector can be inserted between the cylindrical portion and the cover cylinder. Chip.
When the cylindrical part is inserted into the gap between the male member and the outer cylinder, a flow path through which a liquid material flows is formed between the cylindrical part and the male connector. The wiping tip according to any one of claims 1 to 7, wherein a flow path forming structure is provided in the portion.
The wiping tip according to claim 8, wherein the flow path forming structure is a groove provided on an outer peripheral surface or an inner peripheral surface of the cylindrical portion.
The wiping tip according to any one of claims 1 to 9, wherein a screwing structure for screwing with the female screw is provided on an outer peripheral surface of the cylindrical portion.
The wiping tip according to claim 10, wherein the screwing structure is a helical male screw that circulates the cylindrical portion one or more times.
The wiping tip according to claim 10, wherein the screwing structure is a protrusion provided within an angle range of less than 180 degrees with respect to a central axis of the cylindrical portion.