Three-way valve structure suitable for endoscopic surgery

Abstract

The utility model provides a three-way valve structure suitable for endoscopic surgery, which relates to the field of medical instruments and comprises a three-way shaft body, an inner cavity of the three-way shaft body is a working channel, and the working channel penetrates through two ends of the three-way shaft body; a mounting ring groove is formed in the inner wall of the first end of the three-way shaft body, and the mounting ring groove communicates with the working channel; the switch valve is arranged on the side wall of the three-way shaft body, an inner cavity of the switch valve is a switch channel, and the switch channel is communicated with the working channel; a mounting groove is formed in the three-way shaft body, the gasket, the gasket and the pushing piece are arranged in the mounting groove, the gasket is located between the gasket and the pushing piece, and the pushing piece is in threaded connection with the three-way shaft body and extrudes the gasket, so that the inner diameter of the gasket is reduced, and an object is locked; and the three-way shaft body is made of a metal material. The three-way valve has the effect that the three-way valve is convenient to disassemble.

Description

Technical Field

[0001] This application relates to the field of medical devices, and particularly to a three-way valve structure applicable to endoscopic surgery. Background Art

[0002] Three-way valves are generally used in conjunction with other medical devices for purposes such as injecting, infusing, transfusing, detecting, or drawing blood from patients, and their applications in the medical field are very extensive.

[0003] In endoscopic surgery, a three-way valve for guiding and locking guide wires is often used. However, in the prior art, since the three-way valve is made of plastic material and cannot withstand repeated sterilization, it is discarded after being used in a disposable manner, resulting in excessive waste. Utility Model Content

[0004] In order to facilitate the disassembly of the three-way valve and thus achieve repeated use, this application provides a three-way valve structure applicable to endoscopic surgery.

[0005] To solve the above problems, the technical solution of the present utility model is as follows:

[0006] A three-way valve structure applicable to endoscopic surgery includes:

[0007] A three-way shaft body, the inner cavity of the three-way shaft body is a working channel, and the working channel penetrates through both ends of the three-way shaft body; an installation ring groove is provided on the inner wall of the first end of the three-way shaft body, and the installation ring groove communicates with the working channel;

[0008] A switching valve, which is arranged on the side wall of the three-way shaft body, and the inner cavity of the switching valve is a switching channel, and the switching channel communicates with the working channel;

[0009] A washer, a gasket, and a pusher. The washer and the gasket are both arranged in the installation groove, and the gasket is located between the washer and the pusher. The pusher is threadedly connected to the three-way shaft body and squeezes the washer, so that the inner diameter of the washer is reduced to lock the object;

[0010] Among them, the three-way shaft body is made of a metal material.

[0011] For the three-way valve structure applicable to endoscopic surgery of the present utility model, the pusher includes a locking nut and a pushing ring; the inner wall of the locking nut is threadedly connected to the outer side wall of the three-way shaft body, the pushing ring is located in the installation through groove and extends along the outside of the three-way shaft body, and a fixing member is provided between the locking nut and the pushing ring;

[0012] Among them, the pushing ring abuts against the gasket.

[0013] The three-way valve structure applicable to endoscopic surgery of the present utility model, wherein the fixing member includes a fixing bolt which passes through the lock nut, and the fixing bolt is threadedly connected to the push ring.

[0014] The three-way valve structure applicable to endoscopic surgery of the present utility model, wherein the washer, the gasket, the push member and the three-way shaft body are coaxially arranged.

[0015] The three-way valve structure applicable to endoscopic surgery of the present utility model, wherein a first fixing ring groove is formed on the inner bottom wall of the installation groove, and a first fixing convex ring is arranged on the first end face of the washer contacting the inner bottom wall of the installation groove, and the first fixing convex ring is located in the first fixing ring groove.

[0016] The three-way valve structure applicable to endoscopic surgery of the present utility model, wherein a second fixing convex ring is arranged on the second end face of the washer contacting the gasket, and a second fixing ring groove is formed on the first end face of the gasket contacting the washer, and the second fixing convex ring is located in the second fixing ring groove.

[0017] The three-way valve structure applicable to endoscopic surgery of the present utility model, wherein a third fixing convex ring is arranged on the second end face of the gasket contacting the push ring, and a third fixing ring groove is formed on the first end face of the push ring connecting the gasket; the third fixing convex ring is located in the third fixing ring groove.

[0018] The three-way valve structure applicable to endoscopic surgery of the present utility model, wherein a first connecting ring is arranged on the inner wall of the lock nut, and a second connecting ring is arranged on the outer side wall of the first end of the three-way shaft body. The first connecting ring is located between the switch valve connecting the three-way shaft body and the second connecting ring to achieve anti-detachment;

[0019] Wherein, the outer side walls of the lock nut and the second connecting ring are threadedly connected.

[0020] The three-way valve structure applicable to endoscopic surgery of the present utility model, wherein the washer is made of silica gel material.

[0021] The three-way valve structure applicable to endoscopic surgery of the present utility model, wherein a Luer connector nut is arranged on the second end of the three-way shaft body.

[0022] Due to the adoption of the above technical solutions, the present utility model has the following advantages and positive effects compared with the prior art:

[0023] First, in this solution, the push member is threadedly connected to the three-way shaft body. On the one hand, the push member can be fixed to the three-way shaft body, and on the other hand, it can move in the axial direction of the three-way shaft body, thereby realizing the push member pressing the gasket and the washer, achieving the effect of deforming the washer; due to the deformation of the washer, the inner diameter of the washer is reduced, thereby achieving the purpose of locking the object.

[0024] Since the connection between the pushing part and the three-way shaft body is detachable, the washer and the gasket are fixed in a pressing manner by the pushing part, so that the washer and the gasket can also be detached, which is convenient for later cleaning and reuse.

[0025] The three-way shaft body is made of metal material, and since the metal material can be sterilized repeatedly, it can be reused.

[0026] Second, the first fixing convex ring is located in the first fixing ring groove, so that the washer is positioned in the installation through groove; the second fixing convex ring is located in the second fixing ring groove, so that the gasket is positioned on the washer; the third fixing convex ring is located in the third fixing ring groove, so that the pushing part is positioned on the gasket, which makes the pushing part more stable during the extrusion process. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of the overall structure of the three-way valve structure applicable to endoscopic surgery in the embodiment of the present application

[0028] Figure 2 Cross-sectional view of the three-way valve structure applicable to endoscopic surgery in the embodiment of the present application

[0029] Description of reference numerals: 1. Three-way shaft body; 2. Installation ring groove; 3. Switch valve; 4. Washer; 5. Gasket; 6. Locking nut; 8. Pushing ring; 9. Fixed bolt; 10. First fixing ring groove; 11. First fixing convex ring; 12. Second fixing convex ring; 13. Third fixing convex ring; 14. Luer connector nut. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The following further describes in detail a three-way valve structure applicable to endoscopic surgery proposed by the present invention in conjunction with the accompanying drawings and specific embodiments. According to the following description and the claims, the advantages and features of the present invention will be clearer.

[0031] Refer to Figures 1 to 2 , the present application provides a three-way valve structure applicable to endoscopic surgery, including a three-way shaft body 1, a switch valve 3, a washer 4, a gasket 5 and a pushing part. The inner cavity of the three-way shaft body 1 is a working channel, and the working channel penetrates through both ends of the three-way shaft body 1; an installation ring groove 2 is formed on the inner wall of the first end of the three-way shaft body 1 (the other end of the three-way shaft body 1 is the second end of the three-way shaft body 1), and the installation ring groove 2 communicates with the working channel. The switch valve 3 is arranged on the side wall of the three-way shaft body 1, and the inner cavity of the switch valve 3 is a switch channel, and the switch channel communicates with the working channel. The washer 4 and the gasket 5 are both arranged in the installation groove, and the gasket 5 is located between the washer 4 and the pushing part. The pushing part is threadedly connected to the three-way shaft body 1 and squeezes the washer 4, so that the inner diameter of the washer 4 is reduced to lock the object. Among them, the three-way shaft body 1 is made of metal material.

[0032] Further setting: The pusher moves along the axis direction of the three-way shaft body 1 in a threaded connection manner. Thus, the axis directions of both the washer 4 and the gasket 5 are parallel to the axis direction of the three-way shaft body 1.

[0033] Further setting: The on-off valve 3 includes an on-off valve body and an on-off valve stem. The on-off valve stem is arranged on the valve body and realizes the rotation effect, and then realizes the opening or closing of the on-off channel.

[0034] Further setting: Compared with the traditional three-way method using plastic, in this solution, the three-way shaft body 1, the on-off valve 3 and the pusher are all made of metal materials, and then the sterilization can be repeated and reused.

[0035] To sum up, in this solution, the pusher is threadedly connected to the three-way shaft body 1. On the one hand, the pusher can be fixed on the three-way shaft body 1, and on the other hand, it can move in the axis direction of the three-way shaft body 1, and then the pusher can compress the gasket 5 and the washer 4 to achieve the effect of deforming the washer 4; due to the deformation of the washer 4, the inner diameter of the washer 4 is reduced, and then the purpose of locking the object is achieved.

[0036] Since the connection between the pusher and the three-way shaft body 1 is detachable, the gasket 4 and the gasket 5 are fixed by the pusher in a compressed manner, and then the gasket 4 and the gasket 5 can also be detached, so it is convenient for later cleaning and repeated use.

[0037] The following further describes the specific structure of the three-way valve structure applicable to endoscopic surgery in this embodiment:

[0038] In this embodiment, the pusher includes a locking nut 6 and a pushing ring 8; the inner wall of the locking nut 6 is threadedly connected to the outer wall of the three-way shaft body 1, the pushing ring 8 is located in the installation through groove and extends along the outside of the three-way shaft body 1, and a fixing member is arranged between the locking nut 6 and the pushing ring 8; wherein, the pushing ring 8 abuts against the gasket 5.

[0039] Further setting: The inner side wall of one end of the locking nut 6 is in contact with the outer side wall of one end of the pushing ring 8, and there is an interval between the inner side wall of the other end of the locking nut 6 and the outer side wall of the other end of the pushing ring 8, and a connecting through groove is formed; wherein, the first end of the three-way shaft body 1 is located in the connecting through groove.

[0040] Further setting: The inner wall of one end of the pushing ring 8 away from the gasket 5 is provided with an inclined ring surface, and the diameter of the inclined ring surface gradually increases from the second end of the three-way shaft body 1 to the first end of the three-way shaft body 1.

[0041] In this embodiment, the fixing member includes a fixing bolt 9, the fixing bolt 9 passes through the locking nut 6, and the fixing bolt 9 is threadedly connected to the pushing ring 8.

[0042] For the overall installation process, first install the washer 4 in the installation through groove, then install the gasket 5 on the washer 4, place the push ring 8 into the installation through groove, and press the push ring 8 against the gasket 5; the fixing bolt 9 fixedly connects the locking nut 6 and the push ring 8. At this time, rotating the locking nut 6 can realize the movement of the push ring 8 along the axis of the three-way shaft body 1, and then realize the extrusion of the washer 4.

[0043] In this embodiment, the washer 4, the gasket 5, the pusher and the three-way shaft body 1 are coaxially arranged.

[0044] In this embodiment, a first fixing ring groove 10 is formed on the inner bottom wall of the installation groove, and a first fixing convex ring 11 is arranged on the first end face of the washer 4 in contact with the inner bottom wall of the installation groove. The first fixing convex ring 11 is located in the first fixing ring groove 10.

[0045] Furthermore, the first fixing convex ring 11 and the washer 4 are coaxially arranged, and the first fixing convex ring 11 and the washer 4 are integrally formed.

[0046] In this embodiment, a second fixing convex ring 12 is arranged on the second end face of the washer 4 in contact with the gasket 5, and a second fixing ring groove is formed on the first end face of the gasket 5 in contact with the washer 4. The second fixing convex ring 12 is located in the second fixing ring groove.

[0047] Furthermore, the second fixing convex ring 12 and the washer 4 are coaxially arranged, and the second fixing convex ring 12 and the washer 4 are integrally formed.

[0048] In this embodiment, a third fixing convex ring 13 is arranged on the second end face of the gasket 5 in contact with the push ring 8, and a third fixing ring groove is formed on the first end face of the push ring 8 connected to the gasket 5; the third fixing convex ring 13 is located in the third fixing ring groove.

[0049] Furthermore, the third fixing convex ring 13 and the gasket 5 are coaxially arranged, and the third fixing convex ring 13 and the gasket 5 are integrally formed.

[0050] In summary, the first fixing convex ring 11 is located in the first fixing ring groove 10, so that the washer 4 is positioned on the installation through groove; the second fixing convex ring 12 is located in the second fixing ring groove, so that the gasket 5 is positioned on the washer 4; the third fixing convex ring 13 is located in the third fixing ring groove, so that the pusher is positioned on the gasket 5, and then the pusher is more stable during the extrusion process.

[0051] In this embodiment, a first connecting ring is arranged on the inner wall of the locking nut 6, and a second connecting ring is arranged on the outer side wall of the first end of the three-way shaft body 1. The first connecting ring is located between the connection of the switching valve 3 and the three-way shaft body 1 and the second connecting ring to achieve anti-dropping; among them, the outer side walls of the locking nut 6 and the second connecting ring are threadedly connected.

[0052] Further explanation, the first connecting ring and the locking nut 6 are integrally formed, and the second connecting ring and the tee shaft body 1 are integrally formed.

[0053] In this embodiment, the gasket 4 is made of silicone material.

[0054] Further explanation, since this solution is convenient for disassembly and cleaning, the material of the tee shaft body 1 can be selected as a metal material, and the pusher can also be selected as a metal material to improve the quality of the three-way valve.

[0055] In this embodiment, a Luer connector nut 14 is provided on the second end of the tee shaft body 1.

[0056] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, provided that these changes fall within the scope of the claims of the present invention and their equivalent technologies, they still fall within the protection scope of the present invention.

Claims

1. A three-way valve structure applicable to endoscopic surgery, characterized in that, Including, A three-way shaft body, the inner cavity of the three-way shaft body is a working channel, and the working channel penetrates through both ends of the three-way shaft body; an installation ring groove is formed on the inner wall of the first end of the three-way shaft body, and the installation ring groove communicates with the working channel; A switching valve is arranged on the side wall of the three-way shaft body, and the inner cavity of the switching valve is a switching channel, and the switching channel communicates with the working channel; A washer, a gasket and a pushing member, the washer and the gasket are both arranged in the installation groove, and the gasket is located between the washer and the pushing member, and the pushing member is threadedly connected to the three-way shaft body and squeezes the washer, so that the inner diameter of the washer is reduced to lock the object; Wherein, the three-way shaft body is made of a metal material.

2. The three-way valve structure applicable to endoscopic surgery according to claim 1, characterized in that The pushing member includes a locking nut and a pushing ring; the inner wall of the locking nut is threadedly connected to the outer side wall of the three-way shaft body, the pushing ring is located in the installation through groove and extends along the outside of the three-way shaft body, and a fixing member is arranged between the locking nut and the pushing ring; Wherein, the pushing ring abuts against the gasket.

3. The three-way valve structure applicable to endoscopic surgery according to claim 2, wherein, The fixing member includes a fixing bolt, the fixing bolt passes through the locking nut, and the fixing bolt is threadedly connected to the pushing ring.

4. The three-way valve structure applicable to endoscopic surgery according to claim 1, characterized in that The washer, the gasket, the pushing member and the three-way shaft body are coaxially arranged.

5. The three-way valve structure applicable to endoscopic surgery according to claim 1, wherein, A first fixing ring groove is formed on the bottom wall of the installation groove, and a first fixing convex ring is arranged on the first end face of the washer contacting the bottom wall of the installation groove, and the first fixing convex ring is located in the first fixing ring groove.

6. The three-way valve structure applicable to endoscopic surgery according to claim 1, characterized in that, A second fixing convex ring is arranged on the second end face of the washer contacting the gasket, a second fixing ring groove is formed on the first end face of the gasket contacting the washer, and the second fixing convex ring is located in the second fixing ring groove.

7. The three-way valve structure applicable to endoscopic surgery according to claim 2, characterized in that, A third fixing convex ring is arranged on the second end face of the gasket contacting the pushing ring, and a third fixing ring groove is formed on the first end face of the pushing ring connecting the gasket; the third fixing convex ring is located in the third fixing ring groove.

8. The three-way valve structure applicable to endoscopic surgery according to claim 2, characterized in that, A first connecting ring is arranged on the inner wall of the locking nut, and a second connecting ring is arranged on the outer side wall of the first end of the three-way shaft body. The first connecting ring is located between the connection of the switching valve and the three-way shaft body and the second connecting ring to prevent falling off; Wherein, the outer side walls of the locking nut and the second connecting ring are threadedly connected.

9. The three-way valve structure applicable to endoscopic surgery according to claim 1, characterized in that, The material of the washer is a silicone material.

10. The three-way valve structure applicable to endoscopic surgery according to claim 1, wherein, A Luer connector nut is arranged on the second end of the three-way shaft body.

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