Tube connector and tube with connector

Abstract

The invention provides a tube connector and a tube with the connector, which can accurately align the front end position of a medical tube when the medical tube is installed. A tube connector (12) for connecting a medical tube (11) to a medical device, the tube connector (12) being provided with: a female member (21) into which the medical tube (11) is inserted; a male member (22) screwed to the female member (21); and a gasket (23) which is housed in the female member (21), deforms in accordance with the screwing of the male member (22) with respect to the female member (21), and fixes the medical tube (11) by means of the deformation, in which at least the male member (22) among the female member (21) and the male member (22) has translucency.

Description

(19) State Intellectual Property Office (12) Invention Patent Application (10) Application Publication Number (43) Application Publication Date (21) Application Number 202511623527.4 (22) Application Date 2025.11.07 (30) Priority Data 2024-201799 2024.11.19 JP (71) Applicant Hirakawa Futek Co., Ltd. Address Japan (72) Inventor Sakamoto Shoko Ejun (74) Patent Agency Beijing J&J Intellectual Property Agency Co., Ltd. 11227 Patent Attorney Jiang Yue (51) Int.Cl. A61M 39 / 10 (2006.01) A61B 1 / 00 ​​(2006.01) A61M 25 / 00 (2006.01) (54) Title of Invention: Tube Connector and Tube with Connector (57) Abstract: This invention provides a tube connector and a tube with connector that enable accurate alignment of the front end of a medical tube during installation. The tube connector (12) connects a medical tube (11) to a medical device. The tube connector (12) comprises: a female part (21) into which the medical tube (11) is inserted; a male part (22) that screws into the female part (21); and a washer (23) housed in the female part (21) and deforms with the screwing of the male part (22) relative to the female part (21), thereby fixing the medical tube (11) by deformation. At least the male part (22) of the female part (21) and the male part (22) is light-transmitting. Claims 1 page, Description 6 pages, Drawings 7 pages, CN 122057161 A 2026.05.19 CN 1 22 05 71 61 A 1. A tube connector for connecting a medical tube to a medical device, characterized in that the tube connector comprises: a first component for inserting the medical tube; a second component for screwing into the first component; and a washer housed in the first component and deforming with the screwing of the second component relative to the first component, thereby fixing the medical tube by the deformation, wherein at least the second component is light-transmitting. 2. The tube connector according to claim 1, characterized in that a tube limiting portion is formed in the second component for abutting the front end of the medical tube inserted into the first component. 3. The tube connector according to claim 1 or 2, characterized in that the first component and the second component are light-transmitting. 4. A tube connector for connecting a medical tube to a medical device, characterized in that the tube connector comprises: a first component for inserting the medical tube; a second component for screwing into the first component; and a washer housed in the first component and changing with the screwing of the second component relative to the first component.The medical tube is shaped and fixed by the deformation, and a light-transmitting portion is formed in the second component, which allows visual confirmation of the position of the front end of the medical tube inside. 5. A tube with a connector, characterized in that the tube with connector comprises a medical tube and a tube connector for connecting the medical tube to a medical device, the tube connector comprising: a first component for inserting the medical tube; a second component for screwing with the first component; and a washer housed in the first component and deforming with the screwing of the second component relative to the first component, and fixing the medical tube by the deformation, wherein at least the second component is light-transmitting. 6. A tube with a connector, characterized in that the tube with a connector comprises a medical tube and a tube connector for connecting the medical tube to a medical device, the tube connector comprising: a first component for inserting the medical tube; a second component for screwing into the first component; and a washer housed in the first component and deforming with the screwing of the second component relative to the first component, thereby fixing the medical tube by the deformation, and a light-transmitting portion formed in the second component for visually confirming the position of the front end of the medical tube inside. Claims 1 / 1 page 2 CN 122057161 A Tube connector and tube with connector Technical Field

[0001] The present invention relates to tube connectors and tubes with connectors. Background Art

[0002] Conventionally, as a tube connector, there exists a tube connector consisting of a first part (compression part) and a second part (body). A medical tube (catheter) is fixed by screwing the first part and the second part together and compressing and deforming a gasket (sealant) using these two parts (see Patent Document 1). This tube connector includes a first part and a second part, each having an internally and externally threaded connection, and a gasket mounted on the first part. After inserting the medical tube into the through hole of the gasket, the first part and the second part are screwed together to compress the gasket using these two parts. Thus, the medical tube is fixed using the gasket, which deforms due to compression. Because the medical tube is fixed by the deformation of the gasket accompanying the screwing together of the first and second parts, the medical tube can be installed easily and liquid-tightly.

[0003] Patent Document 1: Japanese Patent Application Publication No. 54-21087

[0004] However, conventional tube connectors have the following problem: when installing medical tubes, it is impossible to determine where to insert the tip of the medical tube, thus making it impossible to accurately align the tip of the medical tube. This results in problems such as insufficient insertion of the medical tube causing it to detach from the tube connector, and over-insertion causing the tip of the medical tube to interfere with other components. Summary of the Invention

[0005] Therefore, the object of the present invention is to provide a tube connector and a tube with a connector that can accurately align the front end of a medical tube during installation.

[0006] To achieve the above object, the present invention provides a tube connector that connects a medical tube to a medical device, characterized in that the tube connector comprises: a first component for inserting the medical tube; a second component that screws into the first component; and a washer housed in the first component and deforms as the second component screws into the first component, thereby fixing the medical tube by the deformation, wherein at least the second component is light-transmitting.

[0007] In addition, in order to achieve the above-mentioned objective, the present invention provides a tube connector that connects a medical tube to a medical device. The tube connector is characterized in that it comprises: a first component for inserting the medical tube; a second component that screws into the first component; and a washer that is housed in the first component and deforms as the second component screws into the first component, thereby fixing the medical tube by the deformation. A light-transmitting portion is formed in the second component, which allows the front end position of the medical tube inside to be visually confirmed.

[0008] In addition, in order to achieve the above-mentioned objective, the present invention provides a tube with a connector, characterized in that the tube with a connector comprises a medical tube and a tube connector for connecting the medical tube to a medical device, the tube connector comprising: a first component for inserting the medical tube; a second component for screwing into the first component; and a washer housed in the first component and deforming as the second component screws into the first component, thereby fixing the medical tube by the deformation, wherein at least the second component is light-transmitting.

[0009] In addition, in order to achieve the above-mentioned objective, the present invention provides a tube with a connector, characterized in that the tube with connector (page 1 / 6 of the specification, CN 122057161 A) includes a medical tube and a tube connector for connecting the medical tube to a medical device. The tube connector has: a first part for inserting the medical tube; a second part for screwing with the first part; and a washer housed in the first part, which deforms with the screwing of the second part relative to the first part and fixes the medical tube by the deformation. A light-transmitting portion is formed in the second part, which allows visual confirmation of the position of the front end of the medical tube inside.

[0010] The tube connector and the tube with connector according to the present invention can accurately align the front end of the medical tube when installing the medical tube. Brief Description of the Drawings

[0011] FIG1 shows a tube with connector according to an embodiment of the present invention, in which the medical tube is installed on a medical device.Figure 2(a) shows the front view of the tube connector in its current state, and Figure 2(b) shows the front view of the medical tube detached from the tube connector.

[0012] Figure 2(a) is a sectional view along line A-A of the tube connector, Figure 2(b) is a sectional view along line B-B-B of the tube connector, and Figure 2(c) is an enlarged view of the main part of Figure 2(b) around the engaging protrusion and the anti-detachment part.

[0013] Figure 3 shows the front view (a), right side view (b), and left side view (c) of the male component.

[0014] Figure 4 is a side view (a) and a sectional view (b) along line C-D of the O-ring during pressing by the pressing part.

[0015] Figure 5 shows the front view (a), right side view (b), and left side view (c) of the female component.

[0016] Figure 6 is an explanatory diagram showing the tube installation operation.

[0017] FIG7(a) is a front view of the tube connector of the first modified example, and FIG7(b) is a front view of the tube connector of the second modified example. Explanation of reference numerals

[0018] 1... tube with connector; 11... medical tube; 12... tube connector; 21... female part; 22... male part; 23... O-ring; 56... tube limiting part; D... medical device. Detailed Description

[0019] Hereinafter, a tube connector according to an embodiment of the present invention and a tube with connector including the tube connector will be described with reference to the accompanying drawings. The tube with connector is a medical tube used inside or outside the human body with a tube connector attached. In particular, the tube with connector adopts a configuration in which the position of the internal medical tube can be visually confirmed for the tube connector. In addition, as shown in the accompanying drawings, left and right, front and back, and up and down will be defined for the following description. In addition, in this embodiment, the left and right direction is consistent with the axis of the tube connector, and the direction orthogonal to the axis of the tube connector is the shearing direction of the tube connector.

[0020] (Composition of the tube with connector)

[0021] As shown in FIG1, the tube 1 with connector includes a medical tube 11 and a tube connector 12 for connecting the medical tube 11 to a medical device D. The medical tube 11 is connected to the medical device D by inserting the end of the medical tube 11 into the tube connector 12 and fixing it, and connecting the tube connector 12 to the medical device D. In this embodiment, the tube 1 with connector and the tube connector 12 are exemplified as drainage tube 1 and drainage tube connector 12 for endoscopic biliary / pancreatic duct drainage. Therefore, the medical device D for connecting the medical tube 11 is assumed to be a syringe, a drainage bag (sterilized bag), etc.

[0022] The medical tube 11 is a colored tube with an external color. In this embodiment, for example, it is assumed to be inserted into the patient's body. (Instruction manual page 2 / 6 4 CN 122057161 A)The catheter. That is, in this embodiment, one side of the medical tube 11 is inserted into the patient's body, and the other end of the medical tube 11 is fixed to the tube connector 12 outside the patient's body.

[0023] (Composition of the tube connector)

[0024] As shown in FIG1 and FIG2, the tube connector 12 is generally formed in the shape of a gourd and includes: a female part 21 on the right side for inserting the medical tube 11; a male part 22 on the left side for screwing with the female part 21; and an O-ring 23, which is housed in the female part 21 and deforms as the male part 22 is screwed relative to the female part 21, and fixes (holds) the medical tube 11 by this deformation. The female part 21 is an example of the first part, and the male part 22 is an example of the second part. In addition, the O-ring 23 is an example of a gasket that deforms with the screwing of the female part 21 and the male part 22 and fixes the medical tube 11 by this deformation. In addition, the O-ring 23 is a synthetic rubber annular gasket with a circular cross-section.

[0025] As shown in FIG. 3, the male component 22 has: a male component body 31; a shaft-shaped portion 32 protruding to the right from the male component body 31; a device connection portion 33 protruding to the left from the male component body 31 and connecting to the medical device D; and a through hole 34 passing through the male component body 31, the shaft-shaped portion 32, and the device connection portion 33. The male component body 31, the shaft-shaped portion 32, the device connection portion 33, and the through hole 34 are formed on the same axis. In addition, the device connection portion 33 has threads for connection, etc., and can be directly connected to the medical device D, or it can be connected to the medical device D via a connector prepared separately.

[0026] A screw-on gripping portion 37 for screwing the male component 22 and the female component 21 is formed on the outer peripheral surface 36 of the male component body 31. The screw-on grip 37 is constructed by a handle structure consisting of six circumferentially arranged recesses 37a (finger hooks), and is disposed at a position separating from the right end of the outer peripheral surface 36 to the left. The separation distance L1 of the screw-on grip 37 relative to the right end is only required to be such that the tip of the finger holding the grip does not extend beyond the right end of the outer peripheral surface 36 when the grip is held from the left. For example, it is preferably 0.95 mm or more. In addition, each recess 37a is formed, for example, into a teardrop shape with the right side as the front end.

[0027] In addition, the outer peripheral surface 36 of the male component body 31 is configured such that the right end is tapered at the front end and the shape of the right end is a perfect circle.

[0028] As shown in Figures 2 and 3, the shaft-shaped portion 32 has: a cylindrical shaft-shaped portion body 41; a pressing portion 42 formed at the right end of the shaft-shaped portion body 41, which presses the O-ring 23 as the female component 21 and male component 22 are screwed together; a male-side threaded portion 43 formed on the outer peripheral surface of the shaft-shaped portion body 41 in a manner adjacent to the left side of the pressing portion 42; and an engaging protrusion 44 for engaging with the male-side threaded portion 43.The threaded portion 43 is formed adjacent to the left side of the outer peripheral surface of the shaft-shaped body 41. The male threaded portion 43 is screwed into the female threaded portion 71 (described later) of the female component 21.

[0029] As shown in FIG2 (c), the engaging protrusion 44 is formed by protruding radially over the entire circumference of the shaft-shaped body 41 and is formed in a trapezoidal cross-section. Although details will be described later, the engaging protrusion 44 and the anti-dislodgement portion 72 (described later) of the female component 21 constitute a separation suppression structure.

[0030] As shown in FIG3 and FIG4, the pressing portion 42 has six pressing members 51 arranged at predetermined intervals in the circumferential direction, which press the O-ring 23 through which the medical tube 11 is inserted. Specifically, the O-ring 23 is pressed at six points at intervals along the circumferential direction by the six pressing members 51. As shown in Figure 4(b), the O-ring 23 can be significantly deformed at these six points, and the holes of the O-ring 23 are approximately hexagonal. Therefore, relative to the medical tube 11 inserted into the holes of the O-ring 23, the O-ring 23 is pressed only at the six points corresponding to the pressing members 51, so the wall of the tube body (e.g., the outer tube) in the medical tube 11 protrudes towards the unpressed portion (the portion corresponding to the interval), and the tube body is approximately hexagonal. This prevents the medical tube 11 from becoming blocked and allows for stable fixation of the medical tube 11. Furthermore, it is preferable that each interval of the six pressing members 51 has a width equal to (approximately the same) in the circumferential direction as the circumferential width of each pressing member 51. For example, it is preferable that each interval of the six pressing members 51 has a width in the circumferential direction that is at least 0.8 times and less than 1.2 times the circumferential width of each pressing member 51. (See page 3 / 6 of the specification, CN 122057161 A)

[0031] Furthermore, as shown in FIG4(a), each pressing member 51 of the pressing part 42 has a pressing surface 51a formed parallel to the shearing direction of the tube connector 12. That is, the pressing surface 51a of the pressing part 42 is a surface that is approximately perpendicular to the axial direction of the tube connector 12.

[0032] As shown in FIGS. 2 and 3, the through hole 34 functions as an insertion hole for inserting the medical tube 11 and as a connecting flow path that connects the internal flow path of the medical tube 11 to the medical device D. That is, it is configured such that when the medical tube 11 is inserted into the tube connector 12 and fixed, the internal flow path of the medical tube 11 is liquid-tightly connected to the medical device D through the through hole 34 of the tube connector 12, thereby connecting the medical tube 11 to the medical device D.

[0033] In addition, a tube limiting portion 56 is formed at the axial middle position of the through hole 34. The tube limiting portion 56 is formed as a narrow portion of the through hole 34 and is used to abut the front end of the medical tube 11 inserted into the mother component 21. The tube limiting portion 56 is an annular rib protruding from the inner circumferential surface of the through hole 34, and the annular right surface of the tube limiting portion 56 becomes the abutment surface for the medical tube 11 to abut.Furthermore, the inner diameter of the tube limiting portion 56 is formed to be smaller than the outer diameter of the medical tube 11 but larger than the inner diameter of the medical tube 11. Thus, the tube limiting portion 56 functions as a limiter to prevent the tip of the medical tube 11 from being inserted beyond a predetermined insertion position, and also functions as a positioning portion to position the tip of the medical tube 11 by abutting against it when it is inserted into the tube connector 12. Therefore, by providing the tube limiting portion 56, the alignment of the tip of the medical tube 11 inserted into the tube connector 12 can be easily achieved.

[0034] Furthermore, the male component 22 (male component body 31, shaft-shaped portion 32, and device connection portion 33) is formed of a translucent resin material, making it light-transmitting. Therefore, the male component 22 is configured such that the tip of the medical tube 11 inside can be visually confirmed. Therefore, the alignment of the tip of the medical tube 11 inserted into the tube connector 12 can be performed more easily and accurately.

[0035] (Composition of the female component)

[0036] As shown in FIG5, the female component 21 is formed into a cylindrical shape with a tapered front end. A screw-on grip 62 for screwing the male component 22 into the female component 21 is formed on the outer peripheral surface 61 of the female component 21. The screw-on grip 62 is formed by a handle structure consisting of six recesses 62a (finger hooks) arranged circumferentially, and is disposed on the outer peripheral surface 61 at a position separating from the left end to the right. The separation distance L2 of the screw-on grip 62 relative to the left end is only required to be such that the tip of the finger holding the grip does not extend beyond the left end of the outer peripheral surface 61 when the grip is held from the right side. For example, it is preferably 0.95 mm or more. In addition, each recess 62a is formed, for example, into a teardrop shape with the left side as the front end side. When screwing the male component 22 relative to the female component 21, one hand holds the screw-on gripping part 62 of the female component 21 in the form of hooking fingers into the recess 62a and pinching, and the other hand holds the screw-on gripping part 37 of the male component 22 in the form of hooking fingers into the recess 37a and pinching, so that the male component 22 is rotated relative to the female component 21, thereby screwing the male component 22 into the female component 21.

[0037] In addition, the outer peripheral surface 61 of the female component 21 is configured such that the left end is tapered at the front end, and the shape of the left end is a perfect circle with the same diameter as the right end of the male component body 31. According to the shape of the left end of the outer peripheral surface 61 of the female component 21 and the shape of the right end of the outer peripheral surface 36 of the male component 22, a recess is formed in the center of the tube connector 12 in the left-right direction, and this recess serves as a connector gripping part for integrally holding the tube connector 12.

[0038] On the other hand, as shown in Figures 2 and 5, inside the mother component 21, an insertion hole 66 for inserting the medical tube 11 from the right side and a conical seating portion 67 connected to the left side of the insertion hole 66 and where the O-ring 23 sits are formed coaxially.And a receiving hole portion 68 connected to the left side of the seating portion 67 and accommodating the shaft-shaped portion 32 of the male component 22.

[0039] A female threaded portion 71 is formed on the inner circumferential surface of the receiving hole portion 68, which engages with the male threaded portion 43 of the male component 22; and an anti-detachment portion 72 is separately disposed on the left side of the female threaded portion 71 and locks the engaging protrusion 44 of the male component 22. The male component 22 is engaged with the female threaded portion 71 of the female component 21 by engaging the male threaded portion 43 of the male component 22 with the female threaded portion 71 of the female component 21.

[0040] As shown in FIG2 (c), the anti-detachment portion 72 is formed by protruding radially throughout the entire circumference of the receiving hole portion 68 and is formed in a trapezoidal cross-section shape. Furthermore, the anti-detachment part 72 is configured such that its right surface 72a serves as a locking surface that engages the left surface 44a of the engaging protrusion 44 of the male part 22 in the separation direction (leftward direction) relative to the female part 21. This right surface 72a restricts the separation of the male part 22 from the female part 21 by contacting the left surface 44a of the engaging protrusion 44 and engaging the engaging protrusion 44 in the separation direction. Thus, by providing a portion for the engagement of the female part 21 and the male part 22 separately from the threaded portions 43 and 71, even if the engagement of the threaded portions 43 and 71 is loosened and disengaged, separation of the female part 21 and the male part 22 can be suppressed, preventing accidental separation of the female part 21 and the male part 22. Furthermore, it is preferable that the separation distance between the female threaded portion 71 and the anti-detachment portion 72 is greater than or equal to the length of the male threaded portion 43, so that even if the threads 43 and 71 are disengaged, the separation of the female component 21 and the male component 22 can be suppressed.

[0041] In addition, the right surface 72a of the anti-detachment portion 72 is an inclined surface that rises radially inward toward the left (separation direction). Therefore, by forcefully pulling the male component 22 relative to the female component 21 toward separation, the male component 22 can be intentionally separated from the female component 21.

[0042] As shown in FIG2, the seating portion 67 has an inclined (conical) seating surface 67a that is formed to be inclined radially outward and downward toward the left, so that the O-ring 23 sits on the seating surface 67a. That is, the seating surface 67a of the seating portion 67 is formed to be inclined from a plane parallel to the pressing surface 51a of the pressing portion 42 toward the medical tube 11. As shown in Figure 4(a), the pressing surface 51a of the pressing part 42 is formed parallel to the shearing direction, and the sitting surface 67a of the O-ring 23 is an inclined surface tilted towards the medical tube 11. Therefore, if the O-ring 23 sitting on the sitting surface 67a is pressed by the pressing part 42, stress is generated relative to the O-ring 23 towards the medical tube 11, and the O-ring 23 deforms significantly towards the medical tube 11. Thus, the medical tube 11 can be securely fixed.

[0043] Furthermore, the female component 21 is formed of a translucent resin material, making it translucent. Thus, the female component 21 is configured such that the medical tube 11 and O-ring 23 inside can be visually confirmed.

[0044] Next, referring to FIG6, the tube installation operation of installing the medical tube 11 onto the tube connector 12 will be described. As shown in FIG6(a), the tube installation operation is performed with the female component 21 and the male component 22 engaged by the anti-detachment part 72, that is, with the shaft-shaped part 32 of the male component 22 accommodated in the receiving hole 68 of the female component 21 and the engaging protrusion 44 located to the right of the anti-detachment part 72.

[0045] In the tube installation operation, firstly, as shown in FIG6(b), the front side of the medical tube 11 is inserted into the interior of the female component 21 and the male component 22 through the insertion hole 66 of the female component 21, so that the medical tube 11 is inserted through the hole of the O-ring 23. At this time, the front end of the medical tube 11 is aligned by bringing it into contact with the tube restriction part 56. Furthermore, since the female component 21 and male component 22 are translucent, alignment can be performed while visually confirming the position of the front end of the medical tube 11.

[0046] After inserting the medical tube 11, as shown in FIG6(c), the male component 22 is screwed relative to the female component 21, thereby securing the medical tube 11 using the O-ring 23. That is, if the male component 22 is screwed relative to the female component 21 using the male-side threaded part 43 and the female-side threaded part 71, the pressing part 42 presses down on the O-ring 23, causing the O-ring 23 to deform inwards, thus securing the medical tube 11 through which the O-ring 23 is inserted. At this time, the pressing surface 51a of the pressing part 42 (6 pressing members 51) is parallel to the shearing direction, while the sitting surface 67a of the sitting part 67 is formed in an inclined shape. As shown in FIG4(a), this promotes the deformation of the O-ring 23 radially inward, thereby firmly fixing the medical tube 11. In addition, by pressing the O-ring 23 with the 6 pressing members 51 arranged at intervals in the circumferential direction, as shown in FIG4(b), the O-ring 23 deforms significantly radially inward only at the position of the pressing member 51. As a result, the O-ring 23 only presses the outer circumferential surface of the medical tube 11 at the position corresponding to the pressing member 51. Therefore, the wall of the medical tube 11 can be allowed to escape towards the unpressed part (the part corresponding to the interval) in the instruction manual (page 5 / 6, CN 122057161 A), thus preventing the medical tube 11 from becoming blocked. This concludes the tube installation operation.

[0047] (Effects and Effects of the Embodiment)

[0048] As described above, since the male component 22 is light-transmitting, the medical tube 11 inside the male component 22 can be visually inspected. Therefore, when installing the medical tube, it is possible to visually inspect it.The front end of the medical tube 11 is aligned with the front end position of the tube. Therefore, when installing the medical tube, the front end position of the medical tube can be accurately aligned.

[0049] Furthermore, since the mother component 21 is transparent, the medical tube 11 and O-ring 23 inside the mother component 21 can be visually confirmed. Therefore, the position and state of the medical tube 11 and O-ring 23 inside the mother component 21 can be confirmed.

[0050] Furthermore, since both the mother component 21 and the male component 22 are transparent, it is easy to confirm whether the medical tube 11 is inserted into the O-ring 23.

[0051] In addition, by providing the tube limiting part 56, it is possible to prevent the medical tube 11 from being over-inserted, causing interference between the front end of the medical tube 11 and the medical device D.

[0052] Furthermore, by making the inner diameter of the tube limiting portion 56 smaller than the outer diameter of the medical tube 11 and larger than the inner diameter of the medical tube 11 (the tube body), it is possible to maintain the limiting function of the tube limiting portion 56 while preventing the flow path from narrowing at the tube limiting portion 56.

[0053] (Regarding other embodiments)

[0054] Embodiments of the present invention have been described above, but the above embodiments do not limit the invention involved in the technical solution. In addition, it should be noted that the combination of features described in the embodiments is not all necessary for the means to solve the problem of the invention. The present invention can be implemented by appropriate modifications without departing from its spirit.

[0055] For example, in the above embodiments, the female component 21 and the male component 22 are semi-transparent, but it is not limited to this as long as the female component 21 and the male component 22 are transparent. That is, as shown in FIG7(a), the female component 21 and the male component 22 can be transparent.

[0056] In addition, in the above embodiment, both the female component 21 and the male component 22 are light-transmitting, but it is also possible for only one of the female component 21 and the male component 22 to be light-transmitting.

[0057] In addition, in the above embodiment, the male component 22 is entirely light-transmitting, but it is also possible for only a part of the male component 22 to be light-transmitting. That is, as shown in FIG7(b), it is also possible for the male component 22 to have a transparent or semi-transparent portion, i.e., a light-transmitting portion 81, which allows the front end of the medical tube 11 inside to be visually confirmed. In this case, as shown in FIG7(b), it is preferable that the light-transmitting portion 81 is arranged around the tube restricting portion 56 in the left-right direction.

[0058] In addition, in the above embodiment, the side connected to the medical tube 11 is the female component 21, and the side connected to the medical device D is the male component 22, but it is also possible for the component connected to the medical device D to be the female component 21, and the side connected to the medical tube 11 to be the male component 22.

[0059] Furthermore, in the above embodiments, a tube 1 with a connector and a tube connector 12 for drainage in biliary / pancreatic duct drainage of an endoscope are exemplified, but the invention is not limited thereto. That is, the invention can also be applied to tube 1 with a connector and tube connector 12 used for purposes other than drainage.

[0060] Furthermore, in the above embodiments, a catheter inserted into a patient's body is exemplified as medical tube 11, but the invention can also be applied to medical tube 11 used externally. That is, the invention can also be applied to the tube 1 with a connector and the tube connector 12 of the medical tube 11 used externally. The present invention provides a tube connector and a tube with the connector, which can accurately align the front end position of a medical tube when the medical tube is installed. A tube connector (12) for connecting a medical tube (11) to a medical device, the tube connector (12) being provided with: a female member (21) into which the medical tube (11) is inserted; a male member (22) screwed to the female member (21); and a gasket (23) which is housed in the female member (21)and deformed along with the screwing of the male member (22) with respect to the female member (21), and fixes the medical tube (11) by means of the deformation, in which at least the male member (22) among the female member (21) and the male member (22) has translucency. Abstract

Claims

1. A tube connector for connecting medical tubes to medical devices, characterized in that, The tube connector includes: The first component is for inserting the medical tube; The second component screws into the first component; and A gasket, housed in the first component, deforms as the second component screws onto the first component, and secures the medical tubing by this deformation. At least the second component of the first component and the second component is light-transmitting.

2. The tube connector according to claim 1, characterized in that, The second component has a tube limiting portion for the front end of the medical tube inserted into the first component to abut against.

3. The tube connector according to claim 1 or 2, characterized in that, The first component and the second component are transparent.

4. A tube connector for connecting medical tubes to medical devices, characterized in that, The tube connector includes: The first component is for inserting the medical tube; The second component screws into the first component; and A gasket, housed in the first component, deforms as the second component screws onto the first component, and secures the medical tubing by this deformation. The second component has a light-transmitting portion that allows visual confirmation of the position of the front end of the medical tube inside.

5. A tube with a connector, characterized in that, The tube with connector includes a medical tube and a tube connector for connecting the medical tube to a medical device. The tube connector has: The first component is for inserting the medical tube; The second component screws into the first component; and A gasket, housed in the first component, deforms as the second component screws onto the first component, and secures the medical tubing by this deformation. At least the second component of the first component and the second component is light-transmitting.

6. A tube with a connector, characterized in that, The tube with connector includes a medical tube and a tube connector for connecting the medical tube to a medical device. The tube connector has: The first component is for inserting the medical tube; The second component screws into the first component; and A gasket, housed in the first component, deforms as the second component screws onto the first component, and secures the medical tubing by this deformation. The second component has a light-transmitting portion that allows visual confirmation of the position of the front end of the medical tube inside.

Images