Push-on y-connector

Abstract

This utility model discloses a press-type Y-type connector, comprising: a Y-valve body, a connecting cap, a valve cap, a guide, and a rotary joint assembly. The Y-valve body includes a first connecting end, a main body section, and a second connecting end. The Y-valve body has a first channel and a second channel, wherein the diameter of the first channel is larger than that of the second channel, and the connection between the first channel and the second channel forms an abutting slope. The guide is disposed in the first channel and abuts against the abutting slope; the guide has a guide channel that penetrates its interior. In this technology, by modifying the shape of the cavity of the Y-type connector body and adding a guide, the gap between the guide and the second channel is minimized. The guide has a tapered channel and a cylindrical channel. If a guide wire is inserted by the rotary joint assembly, the guide wire passes through the second channel, the tapered channel, the cylindrical channel, and the first tube, avoiding the situation where the guide wire gets stuck and cannot pass through, thus improving the guide wire throughput.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a press-type Y-type connector. Background Technology

[0002] Interventional therapy, guided by imaging medicine, involves creating tiny channels (a few millimeters or even smaller) in the skin or blood vessels, or through existing pathways in the body, to deliver specialized catheters (guidewires) or instruments to the affected area for treatment. For example, a catheter may be inserted through a blood vessel to the heart for angiography, diagnosis, treatment, or tissue collection. It is an emerging treatment method between surgery and internal medicine. Percutaneous angioplasty is a technique for treating coronary artery disease. During the procedure, a small incision is made in the blood vessel, and a balloon-dilatated catheter is inserted percutaneously through a peripheral artery to reach the narrowed segment of the coronary artery. Under the guidance and monitoring of medical imaging equipment, a diluted contrast agent is used to inflate the balloon, dilating the narrowed area of ​​the coronary artery or the area of ​​bypass graft stenosis, increasing myocardial blood flow and improving blood flow. In percutaneous angioplasty, the Y-connector is an essential instrument for interventional therapy. Its main functions are to assist in the delivery of contrast agents, guidewires, or other medical devices during the interventional procedure, and to control blood backflow and provide fluid access for the interventional system when using guiding or dilating catheters.

[0003] Y-type connectors are divided into three types: three-pronged Y-type connectors, rotary Y-type connectors, and press-type Y-type connectors. Among them, press-type Y-type connectors have the advantages of being operable with one hand, quick hemostasis, and precise fit.

[0004] The structure of the existing press-type Y-type connector is as follows: Figure 1 As shown, the tube 21' of the valve cap end 2' extends into the cavity 200 of the Y-type connector. When a thin guide wire is inserted from the valve cap end 2', it can smoothly pass through the end of the Y-type connector away from the valve cap end 2'. However, in clinical use, sometimes it is necessary for the guide wire to be inserted from the end of the Y-type connector away from the valve cap end 2' and pass through the valve cap end 2'. At this time, the guide wire is easy to get stuck in the first gap 201 between the tube and the inner wall of the cavity of the Y-type connector. The guide wire gets stuck and cannot pass through the valve cap end 2', which causes trouble for clinical use. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a press-type Y-type connector, which aims to solve the technical problem that the guide wire is prone to jamming and cannot pass out from the valve cap end when it is inserted from the end of the Y-type connector away from the valve cap end.

[0006] This utility model discloses a press-type Y-type connector, including: a Y-valve body, a connecting cap, a valve cap, a guide, and a rotary joint assembly. The Y-valve body includes a first connecting end, a main body section, and a second connecting end. The Y-valve body has a first channel and a second channel, wherein the diameter of the first channel is larger than that of the second channel, and the connection between the first channel and the second channel forms an abutting slope. The connecting cap is detachably connected to the first connecting end and has a first hole. The rotary joint assembly is connected to the second connecting end. The guide is located in the first channel and abuts against the abutting slope. The guide has a guide channel that penetrates its interior. The valve cap has a first tube. When the valve cap is placed on the outside of the connecting cap, the first tube passes through the first hole and enters the interior of the first channel. The end of the first tube away from the valve cap abuts against the guide. The first tube, the guide channel, and the second channel are connected.

[0007] The guide member is cylindrical, with a tapered portion at one end. The outer wall of the guide member has multiple ribs arranged along the axial direction of the guide member. The ends of the ribs have tapered ends that are adapted to the tapered portion and abut against the inclined surface.

[0008] Preferably, the number of ribs is three.

[0009] Specifically, the guide channel includes a conical channel and a cylindrical channel. The larger end of the conical channel is connected to the second channel, the smaller end of the conical channel is connected to the cylindrical channel, and the cylindrical channel is connected to the first channel.

[0010] The connecting cap has an H-shaped cross-section and includes a first connecting ring, a second connecting ring, and a connecting plate. The first connecting ring and the second connecting ring are respectively located on opposite sides of the connecting plate. The end of the first connecting ring abuts against the valve cap. The first hole is located at the center of the connecting plate. The second connecting ring is threadedly connected to the first connecting end.

[0011] The valve cap includes a first cover plate and a first sleeve. The first cover plate covers one end of the first sleeve. A first connecting hole is provided at the center of the first cover plate. A first tube body is connected to the first connecting hole. The first tube body is located inside the first sleeve and is coaxially arranged with the first sleeve.

[0012] The rotary joint assembly includes a rotary joint and a sealing ring. The rotary joint is connected to the second connecting end, and the sealing ring is located at the connection between the second connecting end and the rotary joint.

[0013] The second connecting end includes: a connecting pipe and a first annular protrusion and a second annular protrusion wrapped around the connecting pipe. The connecting pipe is connected to the main body section of the Y valve body. A first groove is formed between the first annular protrusion and the second annular protrusion. The rotary joint includes: a connecting shell and a third joint end. The inner wall of the connecting shell is provided with an arc-shaped protrusion that matches the first groove. The arc-shaped protrusion is engaged with the first groove to achieve a mating connection between the connecting shell and the second connecting end.

[0014] The second connecting end also includes a connector, which protrudes from the connecting pipe and communicates with the connecting pipe; the connecting shell is provided with a connecting groove, which extends into the rotary joint along the extending direction of the second connecting end, and the connecting groove and the connector are connected in a mating manner.

[0015] Both the connector and the connecting groove are stepped and abut against each other for limiting.

[0016] The present invention discloses a press-type Y-type connector, comprising: a Y-valve body, a connecting cap, a valve cap, a guide, and a rotary joint assembly. The Y-valve body includes a first connecting end, a main body section, and a second connecting end. The Y-valve body has a first channel and a second channel, wherein the diameter of the first channel is larger than that of the second channel, and the connection between the first channel and the second channel forms an abutting slope. The connecting cap is detachably connected to the first connecting end and has a first hole. The rotary joint assembly is connected to the second connecting end. The guide is disposed in the first channel and abuts against the abutting slope. The guide has a guide channel penetrating its interior. The valve cap has a first tube. When the valve cap is placed on the outside of the connecting cap, the first tube passes through the first hole and enters the interior of the first channel. The end of the first tube abuts against the guide. The first tube, the guide channel, and the second channel are connected. In this technology, by modifying the shape of the main cavity of the press-type Y-shaped connector and adding a guide, the guide is set to abut against the abutting inclined surface, so that the gap between the guide and the second channel is minimized. The guide is equipped with a conical channel and a cylindrical channel. In clinical use, if the guide wire is inserted by the rotary joint assembly, the guide wire will pass through the second channel, the large end of the conical channel, the small end of the conical channel, the cylindrical channel, and the first tube, avoiding the situation where the guide wire gets stuck and cannot pass through, thus improving the guide wire pass rate. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without any innovative effort.

[0018] Figure 1 This is a partial structural diagram of a press-type Y-type connector in the prior art;

[0019] Figure 2 This is an overall structural diagram of the push-button Y-type connector disclosed in the embodiments of this utility model;

[0020] Figure 3 This is a cross-sectional view of the push-button Y-type connector disclosed in the embodiments of this utility model;

[0021] Figure 4 The embodiments disclosed herein Figure 2 Enlarged view of the structure of section A;

[0022] Figure 5 This is a structural diagram of the guide component disclosed in the embodiments of this utility model;

[0023] Figure 6 The embodiments disclosed herein Figure 2 Enlarged view of the structure of section B;

[0024] Figure label:

[0025] 2', Valve cap end; 21', Pipe body; 200, Cavity; 201, First gap; 1, Y valve body; 11, First connecting end; 12, Main body section; 13, Second connecting end; 131, Connecting pipe; 132, First annular protrusion; 133, Second annular protrusion; 134, First groove; 135, Connector; 14, First channel; 141, Abutting slope; 15, Second channel; 2, Valve cap; 21, First pipe body; 22, First cover plate; 221, First connecting hole; 23, First sleeve; 231 1. First opening; 24. Anti-slip stripes; 3. Rotary joint assembly; 31. Rotary joint; 311. Connecting shell; 3111. Arc-shaped convex strip; 3112. Connecting groove; 312. Third joint end; 32. Sealing ring; 4. Connecting cap; 41. First connecting ring; 42. Connecting plate; 421. First hole; 43. Second connecting ring; 5. Guide component; 51. Guide channel; 512. Conical channel; 511. Cylindrical channel; 52. Conical part; 53. Rib; 531. Exhaust gap; 532. Conical end; Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] It should be understood that, when used in this specification and the appended claims, the terms “comprising” and “including” indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0028] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0029] It should also be further understood that the terms "and" and "or" as used in this specification and the appended claims refer to any combination of one or more of the associated listed items and all possible combinations, and include such combinations.

[0030] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

[0031] This utility model discloses a press-type Y-type connector, such as Figure 2-3As shown, the device includes: a Y-valve body 1, a connecting cap 4, a valve cap 2, a guide 5, and a rotary joint assembly 3. The Y-valve body 1 includes a first connecting end 11, a main body section 12, and a second connecting end 13 that are internally connected. The Y-valve body 1 has a first channel 14 and a second channel 15 that are internally connected. The diameter of the first channel 14 is larger than that of the second channel 15, and the connection between the first channel 14 and the second channel 15 forms an abutting slope 141. The connecting cap 4 is detachably connected to the first connecting end 11 and has a first hole 421. The rotary joint assembly 3 is detachably connected to the second connecting end 13, and the rotary joint assembly... The interior of component 3 is connected to the second channel 15. The guide component 5 is located inside the first channel 14 and abuts against the inclined surface 141. The guide component 5 has a guide channel 51 that runs through its interior. The valve cap 2 has a first tube 21. When the valve cap 2 is placed on the outside of the connecting cap 4, the first tube 21 passes through the first hole 421 and enters the interior of the first channel 14. The end of the first tube 21 away from the valve cap abuts against the guide component 5. The first tube 21, the guide channel 51, and the second channel 15 are connected. Specifically, the first tube 21 has a first tube channel, and the first tube channel, the guide channel 51, and the second channel 15 are connected. In clinical application, the guide wire can be inserted through the first tube 21 and pass through the guide channel 51, the second channel 15, and the rotary joint assembly 3, or the guide wire can be inserted through the rotary joint assembly 3 and pass through the second channel 15, the guide channel 51, and the first tube 21. The outer wall of the valve cap 2 is also provided with anti-slip stripes 24 to facilitate the user's grip and operation.

[0032] The guide member 5 is cylindrical, such as Figure 5 As shown, one end of the guide member 5 is provided with a tapered portion 52, and the outer wall of the guide member 5 is provided with multiple ribs 53. The ribs 53 are arranged along the axial direction of the guide member 5. In this embodiment, the end of the rib 53 is provided with a tapered end 532 that is adapted to the tapered portion 52. The tapered end 532 abuts against the abutting inclined surface 141 to minimize the gap between the guide member 5 and the second channel 15. The guide channel 51 includes a tapered channel 512 and a cylindrical channel 511. The large end of the tapered channel 512 The tapered channel 512 is connected to the second channel 15. The small end of the tapered channel 512 is connected to the cylindrical channel 511. The cylindrical channel 511 is connected to the first channel 14. When the guide wire is inserted by the rotary joint assembly 3, it passes through the second channel 15, the large end of the tapered channel 512, the small end of the tapered channel 512, the cylindrical channel 511, and the first tube 21 in sequence. The large end of the tapered channel 512 can facilitate the guide wire to enter the guide channel 51, avoiding the situation where the guide wire is stuck or cannot pass through the guide member 5.

[0033] In this embodiment, there are three ribs 53. The number of ribs 53 should not be too many. By setting an appropriate number of ribs 53, an exhaust gap 531 can be formed between the outer wall of the guide member 5 and the inner wall of the first channel 14 to facilitate exhaust.

[0034] The cross-section of connector 4 is H-shaped, such as... Figure 4 As shown, the connecting cap 4 includes: a first connecting ring 41, a second connecting ring 43, and a connecting plate 42. The first connecting ring 41 and the second connecting ring 43 are respectively disposed on opposite sides of the connecting plate 42. The end of the first connecting ring 41 abuts against the valve cap 2. The first hole 421 is disposed at the center of the connecting plate 42. The second connecting ring 43 is threadedly connected to the first connecting end 11. Specifically, the inner side of the second connecting ring 43 is provided with an internal thread (not shown in the figure) for connecting the first connecting end 11, and the outer side of the first connecting end 11 is provided with an external thread that matches the internal thread. The detachable connection between the second connecting ring 43 and the first connecting end 11 is achieved through the connection of the internal thread and the external thread.

[0035] Specifically, the valve cap 2 includes a first cover plate 22 and a first sleeve 23. The first cover plate 22 covers one end of the first sleeve 23. A first connecting hole 221 is provided at the center of the first cover plate 22. A first tube 21 is connected to the first connecting hole 221. The first tube 21 is located inside the first sleeve 23 and is coaxially arranged with the first sleeve 23 so that when the valve cap 2 is covered on the outside of the connecting cap 4, the inner wall of the valve cap 2 and the outer wall of the connecting cap 4 are evenly stressed, thus extending the product's service life. The first sleeve 23 includes a first opening 231. Specifically, the first tube 21 is arranged facing the first opening 231. During installation, the first sleeve 23 is fitted onto the outside of the connecting cap 4 through the first opening 231. The first tube 21 extends into the first channel 14 through the first hole 421 and abuts against the guide 5 for limitation.

[0036] Rotary joint assembly 3 includes: a rotary joint 31 and a sealing ring 32, such as Figure 6 As shown, the rotary joint 31 is connected to the second connecting end 13. The sealing ring 32 is located at the connection between the second connecting end 13 and the rotary joint 31. By setting the sealing ring 32, the second connecting end 13 and the rotary joint 31 are connected to each other. The sealing ring 32 is squeezed to deform it. The sealing ring 32 can fill the gap between the second connecting end 13 and the rotary joint 31, ensuring a sealed connection between the second connecting end 13 and the rotary joint 31.

[0037] The second connecting end 13 includes: a connecting pipe 131 and a first annular protrusion 132 and a second annular protrusion 133 wrapped around the connecting pipe 131. The connecting pipe 131 is connected to the main body section 12 of the Y valve body 1. A first groove 134 is formed between the first annular protrusion 132 and the second annular protrusion 133. The rotary joint 31 includes: a connecting shell 311 and a third joint end 312. Specifically, the inner wall of the connecting shell 311 is provided with an arc-shaped protrusion 3111 that is adapted to the first groove 134. The arc-shaped protrusion 3111 is engaged with the first groove 134 to realize the connection between the connecting shell 311 and the second connecting end 13.

[0038] The second connecting end 13 also includes a connector 135, which protrudes from the connecting pipe 131 and communicates with the connecting pipe 131; the connecting shell 311 is provided with a connecting groove 3112, which extends into the rotary joint 31 along the extending direction of the second connecting end 13, and the connecting groove 3112 is connected to the connector 135.

[0039] Both the connector 135 and the connecting groove 3112 are stepped and abut against each other for limiting. Specifically, the connector 135 protrudes from the end of the connecting pipe 131 and the interior of the connector 135 is connected to the interior of the connecting pipe 131. The diameter of the connector 135 is smaller than that of the connecting pipe 131 so that the connection between the connector 135 and the connecting pipe 131 forms a stepped shape. The connecting shell 311 is provided with a matching stepped connecting groove 3112 so that the connector 135 and the stepped connecting groove 3112 mutually limit and abut against each other. The sealing ring 32 is provided at the step of the connector 135 and the connecting groove 3112.

[0040] In a specific embodiment, the guide member 5 is installed in the first channel 14, with the tapered portion 52 of the guide member 5 facing the second channel 15, until the guide member 5 abuts against the abutting inclined surface 141, and the outer wall of the rib 53 of the guide member 5 abuts against the inner wall of the first channel 14. The connecting cap 4 is screwed to the first connecting end 11 of the Y valve body 1, and the valve cap 2 is fitted onto the outside of the connecting cap 4 through the first opening 231. The first tube 21 is inserted into the second channel 15 through the first hole 421 of the connecting cap 4. The second connecting end 13 of the Y valve body 1 is inserted into the connecting shell 311, and the connecting head 135 is inserted into the connecting groove 3112. The sealing ring 32 is tightly set at the step between the connecting head 135 and the connecting groove 3112. The arc-shaped protrusion 3111 is engaged with the first groove 134 to achieve the limiting engagement between the second connecting end 13 and the rotary joint 31. After installation, the first pipe body 21 and the cylindrical channel are... 511, the small end of the tapered channel 512, the large end of the tapered channel 512, the second channel 15, and the rotary joint 31 are connected; in clinical use, the guidewire can not only be inserted through the first connecting hole 221 and the first tube 21, and pass through the guide channel 51, the second channel 15, and the rotary joint 31, but also be inserted through the rotary joint 31, and pass through the second channel 15, the guide channel 51, and the first tube 21. In this embodiment, by setting the tapered channel 512, the large end of the tapered channel 512 is connected to the second channel 15, and the small end of the tapered channel 512 is connected to the cylindrical channel 511. The guidewire is inserted from the rotary joint assembly 3 and passes through the second channel 15, the large end of the tapered channel 512, the small end of the tapered channel 512, the cylindrical channel 511, and the first tube 21 in sequence. The large end of the tapered channel 512 can facilitate the guidewire entering the guide channel 51, avoiding the situation where the guidewire gets stuck and cannot pass through the guide member 5.

[0041] The present invention discloses a press-type Y-type connector, comprising: a Y-valve body, a connecting cap, a valve cap, a guide, and a rotary joint assembly. The Y-valve body includes a first connecting end, a main body section, and a second connecting end. The Y-valve body has a first channel and a second channel, wherein the diameter of the first channel is larger than that of the second channel, and the connection between the first channel and the second channel forms an abutting slope. The connecting cap is detachably connected to the first connecting end and has a first hole. The rotary joint assembly is tightly fitted to the second connecting end. The guide is disposed in the first channel and abuts against the abutting slope. The guide has a guide channel that penetrates its interior. The valve cap has a first tube. When the valve cap is placed on the outside of the connecting cap, the first tube passes through the first hole and enters the interior of the first channel. The end of the first tube abuts against the guide. The first tube, the guide channel, and the second channel are connected. In this technology, by modifying the shape of the main cavity of the press-type Y-shaped connector and adding a guide, the guide abuts against the inclined surface, minimizing the gap between the guide and the first and second channels. The guide has a conical channel and a cylindrical channel inside. In clinical use, if the guide wire is inserted by the rotary connector assembly, the guide wire passes through the second channel, the large end of the conical channel, the small end of the conical channel, the cylindrical channel, and the first tube, avoiding the situation where the guide wire gets stuck and cannot pass through, thus improving the guide wire pass rate.

[0042] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent modifications or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A press-type Y-type connector, characterized in that, include: The Y-valve body comprises a connecting cap, a valve cap, a guide, and a rotary joint assembly. The Y-valve body includes a first connecting end, a main body section, and a second connecting end. The Y-valve body has a first channel and a second channel, wherein the diameter of the first channel is larger than that of the second channel and the connection between the first channel and the second channel forms an abutting slope. The connecting cap is detachably connected to the first connecting end and has a first hole. The rotary joint assembly is connected to the second connecting end. The guide is located in the first channel and abuts against the abutting slope. The guide component has a guide channel that runs through its interior; The valve cap is provided with a first tube body. When the valve cap is placed on the outside of the connecting cap, the first tube body passes through the first hole and enters the interior of the first channel. The end of the first tube body away from the valve cap abuts against the guide member. The first tube body, the guide channel, and the second channel are connected.

2. The press-type Y-connector according to claim 1, characterized in that, The guide is cylindrical, with a tapered portion at one end. The outer wall of the guide has multiple ribs arranged along the axial direction of the guide. The ends of the ribs have tapered ends that are adapted to the tapered portion and abut against the inclined surface.

3. The press-type Y-connector according to claim 2, characterized in that, The number of ribs is three.

4. The press-type Y-connector according to claim 1, characterized in that, The guide channel includes a conical channel and a cylindrical channel. The larger end of the conical channel is connected to the second channel, the smaller end of the conical channel is connected to the cylindrical channel, and the cylindrical channel is connected to the first channel.

5. A press-type Y-type connector according to claim 2, characterized in that, The connecting cap has an H-shaped cross-section and includes a first connecting ring, a second connecting ring, and a connecting plate. The first connecting ring and the second connecting ring are respectively located on opposite sides of the connecting plate. The end of the first connecting ring abuts against the valve cap. The first hole is located at the center of the connecting plate. The second connecting ring is threadedly connected to the first connecting end.

6. A press-type Y-connector according to claim 1, characterized in that, The valve cap includes a first cover plate and a first sleeve. The first cover plate covers one end of the first sleeve. A first connecting hole is provided at the center of the first cover plate. A first tube body is connected to the first connecting hole. The first tube body is located inside the first sleeve and is coaxially arranged with the first sleeve.

7. A press-type Y-connector according to claim 1, characterized in that, The rotary joint assembly includes a rotary joint and a sealing ring. The rotary joint is connected to the second connecting end, and the sealing ring is located at the connection between the second connecting end and the rotary joint.

8. A press-type Y-connector according to claim 7, characterized in that, The second connecting end includes: a connecting pipe and a first annular protrusion and a second annular protrusion wrapped around the connecting pipe. The connecting pipe is connected to the main body section of the Y valve body. A first groove is formed between the first annular protrusion and the second annular protrusion. The rotary joint includes: a connecting shell and a third joint end. The inner wall of the connecting shell is provided with an arc-shaped protrusion that matches the first groove. The arc-shaped protrusion is engaged with the first groove to achieve a mating connection between the connecting shell and the second connecting end.

9. A press-type Y-type connector according to claim 7, characterized in that, The second connecting end also includes a connector, which protrudes from the connecting pipe and communicates with the connecting pipe; the connecting shell is provided with a connecting groove, which extends into the rotary joint along the extending direction of the second connecting end, and the connecting groove and the connector are connected in a mating manner.

10. A press-type Y-connector according to claim 9, characterized in that, Both the connector and the connecting groove are stepped and abut against each other for limiting.

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