Double-channel fluid control device and surgical instrument

Abstract

The utility model relates to a double-channel fluid control device, which comprises a valve body and a valve core, the valve core is rotatably arranged in the valve body, a first channel and a second channel are arranged in the valve core in a staggered manner, the first channel comprises a first opening and a second opening, the second channel comprises a third opening and a fourth opening, and the third opening is communicated with the fourth opening. The first opening, the second opening, the third opening and the fourth opening are formed in the peripheral side of the valve element, the valve body is provided with at least one first connector and at least one second connector, the first connector corresponds to the first opening and / or the third opening, the second connector corresponds to the second opening and / or the fourth opening, and the valve element rotates to control connection or disconnection between the first connector and the second connector. The first connector is communicated with the second connector through the first channel or the second channel. Two kinds of fluid are conveyed through the two channels of the valve element respectively, cross contamination is avoided, and blocking is not prone to occurring; in addition, by reducing valve body connectors, the number of catheters can be reduced, and the internal space of the surgical instrument is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field, especially a kind of double-channel fluid control device and surgical instrument. BACKGROUND

[0002] Surgical instrument is the surgical instrument commonly used in surgical operation. Surgical instrument needs to be washed or pumped in use, so fluid needs to pass through surgical instrument. For example, suction ablation electrode device, when washing, washing liquid is sprayed to the operation site after passing through the device; when pumping, the blood and other tissue fluids of the operation site are sucked away through the device, so a control device is provided in the device to control the washing and pumping operations. The existing control device is usually equipped with a control valve, and a fluid passage is provided in the control valve. For example, the patent with publication number CN113143452A discloses an ablation electrode device with washing and pumping functions, which is provided with a passage in the valve core. The passage is switched on and off by moving the valve core. However, in the above technical solution, the fluid may leave residues in the passage of the valve core, and the use of a common passage may cause blockage and cross-contamination of the two fluids. SUMMARY

[0003] The utility model discloses a kind of double-channel fluid control devices that can reduce cross-contamination, not easy to block, and more stable sealing.

[0004] The specific technical solutions are as follows: a double-channel fluid control device, comprising a valve body and a valve core, the valve core is rotatably arranged in the valve body, the valve core is provided with a first passage and a second passage, the first passage and the second passage are arranged in a staggered manner, the first passage comprises a first opening and a second opening, the second passage comprises a third opening and a fourth opening, the first to fourth openings are arranged on the side of the valve core, the valve body is provided with at least one first interface and at least one second interface, the first interface and the first opening and / or the third opening are correspondingly arranged, the second interface is correspondingly arranged with the second opening and / or the fourth opening, the valve core is rotatable to control the communication or blockage between the first interface and the second interface, and the first interface and the second interface are communicated through the first passage or the second passage.

[0005] In some embodiments, the first passage and the second passage are arranged in parallel, the first opening and the second opening are located on the same radial section, and the third opening and the fourth opening are located on another radial section.

[0006] In some embodiments, the first passage and the second passage are V-shaped, and the first opening to the fourth opening are circular holes with the same structure.

[0007] In some embodiments, the valve body comprises two first interfaces and two second interfaces, the two first interfaces are correspondingly arranged with the first and third openings respectively, and the two second interfaces are correspondingly arranged with the second and fourth openings respectively.

[0008] In some embodiments, the first to fourth openings are misaligned, two first interfaces are arranged side by side on one side of the valve body, and two second interfaces are arranged side by side on the other side of the valve body.

[0009] In some embodiments, the second opening and the fourth opening are strip-shaped holes, the second opening and the fourth opening have an overlapping part in the circumferential trajectory of the valve core, the valve body is provided with one second interface, and the second interface communicates with the second opening or the fourth opening.

[0010] In some embodiments, the second opening and the fourth opening each have an extension part, and the extension part is located on the same radial section as the second interface.

[0011] In some embodiments, the strip-shaped hole is arranged in the axial direction of the valve core, the valve core is arranged in a cylindrical hole of the valve body, the valve core is provided with an operating rod, and the limiting rods at both ends of the operating rod are located in limiting grooves of the valve body.

[0012] A surgical instrument comprises a main body, and a lower conduit and an upper conduit arranged in the main body, the upper conduit and the lower conduit being connected or disconnected through a double-channel fluid control device.

[0013] In some embodiments, the lower conduit has two lower conduits, the two lower conduits are respectively connected with the first interface, the upper conduit has at least one upper conduit, and the upper conduit is connected with the second interface.

[0014] The technical effects of the utility model: the double-channel fluid control device and the surgical instrument of the utility model embodiment two fluids are respectively conveyed through two channels of the valve core, cross contamination is avoided, and blockage is not easy; in addition, by reducing the valve body interface, the number of conduits can be reduced, and the internal space of the surgical instrument is saved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0016] Figure 1 It is a schematic view of the double-channel fluid control device of the utility model embodiment one.

[0017] Figure 2 It is a schematic view of the valve core of the utility model embodiment one.

[0018] Figure 3 It is a perspective view of the valve core of the utility model embodiment one.

[0019] Figure 4is another schematic view of the valve core of the embodiment one of the utility model.

[0020] Figure 5 is a sectional view of the valve core of the embodiment one of the utility model.

[0021] Figure 6 is a schematic view of the valve body of the embodiment one of the utility model.

[0022] Figure 7 is a schematic view of the double channel fluid control device of the embodiment two of the utility model.

[0023] Figure 8 is a schematic view of the valve core of the embodiment two of the utility model.

[0024] Figure 9 is another schematic view of the valve core of the embodiment two of the utility model.

[0025] Figure 10 is a schematic view of the second opening and the fourth opening of the embodiment two of the utility model.

[0026] Figure 11 is a schematic view of the surgical instrument of the double channel fluid control device of the embodiment one of the utility model.

[0027] Figure 12 is a schematic view of the surgical instrument of the double channel fluid control device of the embodiment two of the utility model. DETAILED DESCRIPTION

[0028] The technical scheme of the utility model will be described clearly and completely below in combination with the drawings, obviously, the described embodiments are a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the protection scope of the utility model.

[0029] In the description of the utility model, it needs to be explained that the orientation or position relation indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relation based on the drawing shown, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, cannot be understood as the limitation to the utility model. In addition, the terms "first", "second", "third" are only for the description purpose, and cannot be understood as indicating or implying the relative importance.

[0030] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "installation", "link", "connection" should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can pass through the intermediate medium indirectly connected, can be two elements inside the communication.For the ordinary skilled person in the art, the above-mentioned terms can be understood in the specific meaning in the utility model according to the specific circumstances.

[0031] The specific embodiments of the utility model are described in detail below in combination with the drawings.It should be understood that the specific embodiments described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model.

[0032] <Embodiment one>

[0033] As Figures 1 to 6 The utility model discloses a kind of double-channel fluid control devices, including valve body 1 and valve core 2, valve core 2 rotationally arranged in valve body 1.The valve core 2 is equipped with first channel 21 and second channel 22, first channel 21 and second channel 22 are misaligned and set, so that first, second channel becomes independent channel each other.First channel 21 includes first opening 31 and second opening 32, first, second opening is used to input or output fluid respectively.Second channel 22 includes third opening 33 and fourth opening 34, third, fourth opening is used to input or output fluid respectively.First to fourth opening is arranged in the side of valve core 2, the valve body 1 is equipped with at least one first interface 11 and at least one second interface 12, first interface 11 and first opening 31 and / or third opening 33 are correspondingly arranged, second interface 12 and second opening 32 and / or fourth opening 34 are correspondingly arranged, valve core 2 rotates and controls the communication or block between first interface 11 and second interface 12, first interface 11 and second interface 12 are communicated by first channel 21 or second channel 22.In the above technical scheme, the fluid of first interface 11 can flow through valve core 2 by first channel 21 or second channel 22, and then enter second interface 12;Similarly, fluid can also be introduced into second interface 12, and be communicated by first interface 11 through first or second channel.The fluid between first interface 11 and second interface 12 can be communicated by first or second channel, and the fluid in valve core 2 can be prevented from being mixed and contaminated by switching through the rotation of valve core 2 and through two independent channels.In addition, each fluid is separately passed through first and second channels, so it is not easy to be blocked.

[0034] In this embodiment, the first channel 21 and the second channel 22 are arranged in parallel, the first opening 31 and the second opening 32 are located on the same radial section A, and the third opening 33 and the fourth opening 34 are located on another radial section B. Sections A and B are parallel, allowing fluid to pass through the valve core quickly. The first channel 21 and the second channel 22 are V-shaped, and the first to fourth openings are circular holes with identical structures, which facilitates processing and manufacturing. The valve body 1 includes two first interfaces 11 and two second interfaces 12. The two first interfaces 11 are respectively arranged to correspond to the first and third openings, and the two second interfaces 12 are respectively arranged to correspond to the second and fourth openings. In the above technical solution, the two fluids can flow through the first and second interfaces through the first channel 21 and the second channel 22, respectively. The first to fourth openings are staggered, with the two first interfaces 11 arranged side by side on one side of the valve body and the two second interfaces 12 arranged side by side on the other side. Through the above technical solution, the first channel 21 and the second channel 22 can switch between different first and second interfaces by rotating the valve core 2. Specifically, the valve core 2 rotates, aligning the first opening 31 with the first interface M1 and the second opening 32 with the second interface M2. At this point, the two openings of the second channel 22 are dislocated and disconnected from the first interface M3 and the second interface M4, allowing fluid to flow only through the first channel 21. In other words, the rotation of the valve core 2 can control the connection of the first channel 21, the connection of the second channel 21, or both channels. The valve core 2 is disposed in the cylindrical hole 13 of the valve body 1. The valve core 2 is provided with an operating rod 23. The limiting rods 24 at both ends of the operating rod 23 are located in the limiting grooves 14 of the valve body 1.

[0035] <Example 2>

[0036] like Figures 7 to 10 As shown, the difference between this embodiment and the first embodiment is that the second opening 32 and the fourth opening 34 of this embodiment are strip-shaped holes. The second opening 32 and the fourth opening 34 have an overlapping portion 35 in the circumferential trajectory of the valve core. The rotation trajectory of the second opening 32 covers a range between S1 and S3, and the rotation trajectory of the fourth opening 34 covers a range between S2 and S4. They have an overlapping range. When the second interface 12 is set in the overlapping range, the first opening or the second opening can be connected to the second interface 12 by rotating the valve core. The valve body 1 is provided with a second interface 12, and the second interface 12 is connected to the second opening 32 or the fourth opening 34. Through the above technical solution, the first and second channels can share a second interface 12, reducing the number of interfaces.

[0037] In this embodiment, the second opening 32 and the fourth opening 34 each have an extension portion 36. The extension portion 36 and the second port 12 are located on the same radial cross-section. When the extension portion 36 of the second opening 32 is aligned with the second port 12, the first channel 21 is connected and the second channel 22 is disconnected. When the extension portion 36 of the fourth opening 34 is aligned with the second port 12, the second channel 22 is connected and the first channel 21 is disconnected. The strip-shaped hole is arranged along the axial direction of the valve core.

[0038] A surgical instrument includes a main body 30, and a lower conduit 4 and an upper conduit 5 disposed within the main body 30. The upper conduit 4 and the lower conduit 5 are connected or disconnected via the dual-channel fluid control device of the first or second embodiment. The surgical instrument of this embodiment is an ablation electrode device. There are two lower conduits 4, each connected to a first interface 11. There is at least one upper conduit 5, each connected to a second interface 12. The two lower conduits 4 allow two fluids to pass through.

[0039] like Figure 11 The figure shows a surgical instrument using a dual-channel fluid control device according to Example 1. Two lower conduits 4 are connected to two first interfaces 11, respectively, and two upper conduits 5 are connected to two second interfaces 12, respectively. Irrigation fluid for the ablation and flushing electrode device enters through a lower conduit 4, passes through a first channel 21, and then enters one upper conduit 5 for output. Aspiration fluid for the ablation and flushing electrode device enters through another upper conduit 5, passes through a second channel 22, and then enters another lower conduit 4 for output. This means that the flow directions of the irrigation and aspiration fluids are opposite, and the flow of the fluids is controlled by the rotation of the valve core. Because two upper conduits 5 are required, the main body needs to be larger to accommodate the upper conduits; otherwise, bending and folding of the conduits can easily lead to clogging.

[0040] like Figure 12 The figure shows a surgical instrument using the dual-channel fluid control device of the second embodiment. The difference is that only one upper conduit 5 is needed, and the suction fluid and the flushing fluid are shared, thereby reducing one upper conduit 5 and saving internal space.

[0041] In this embodiment, a dual-channel fluid control device and surgical instrument respectively transport two fluids through two channels of the valve core, avoiding cross contamination and not prone to clogging; in addition, by reducing the valve body interface, the number of catheters can be reduced, saving internal space of the surgical instrument.

[0042] The above describes a dual-channel fluid control device and surgical instrument of the present invention. However, the present invention is not limited to the specific embodiments described above and may be modified or altered in various ways without departing from the scope of the claims. The present invention includes any modifications and alterations within the scope of the claims.

[0043] Finally, it should be noted that: the above embodiments are used to illustrate the technical solutions of the utility model, but not limited to them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A dual-channel fluid control device, comprising a valve body and a valve core, wherein the valve core is rotatably arranged in the valve body, characterized in that: A first channel and a second channel are provided in the valve core, and the first channel and the second channel are staggered. The first channel includes a first opening and a second opening, and the second channel includes a third opening and a fourth opening. The first to fourth openings are arranged on the circumferential side of the valve core. The valve body is provided with at least one first interface and at least one second interface. The first interface and the first opening and / or the third opening are arranged correspondingly, and the second interface and the second opening and / or the fourth opening are arranged correspondingly. The rotation of the valve core controls the connection or blocking between the first interface and the second interface, and the first interface and the second interface are connected through the first channel or the second channel.

2. The dual-channel fluid control device according to claim 1, characterized in that: The first channel and the second channel are arranged in parallel, the first opening and the second opening are located on the same radial section, and the third opening and the fourth opening are located on another radial section.

3. The dual-channel fluid control device according to claim 2, characterized in that: The first channel and the second channel are V-shaped, and the first opening to the fourth opening are circular holes with the same structure.

4. The dual-channel fluid control device according to claim 3, characterized in that: The valve body includes two first interfaces and two second interfaces. The two first interfaces are respectively arranged corresponding to the first and third openings, and the two second interfaces are respectively arranged corresponding to the second and fourth openings.

5. The dual-channel fluid control device according to claim 4, characterized in that: The first to fourth openings are staggered, with the two first interfaces arranged side by side on one side of the valve body, and the two second interfaces arranged side by side on the other side of the valve body.

6. The dual-channel fluid control device according to claim 2, characterized in that: The second opening and the fourth opening are strip-shaped holes, and the second opening and the fourth opening have an overlapping portion in the circumferential trajectory of the valve core. The valve body is provided with a second interface, and the second interface is communicated with the second opening or the fourth opening.

7. The dual-channel fluid control device according to claim 6, characterized in that: The second opening and the fourth opening each have an extension portion, and the extension portion and the second interface are located on the same radial cross section.

8. The dual-channel fluid control device according to claim 7, characterized in that: The strip-shaped hole is arranged along the axial direction of the valve core, and the valve core is arranged in the cylindrical hole of the valve body. The valve core is provided with an operating rod, and the limiting rods at both ends of the operating rod are located in the limiting grooves of the valve body.

9. A surgical instrument comprising a main body, and a lower conduit and an upper conduit arranged in the main body, characterized in that: The upper conduit and the lower conduit are connected or disconnected by the dual-channel fluid control device according to any one of claims 1 to 8.

10. The surgical instrument according to claim 9, wherein There are two lower conduits, which are respectively connected to the first interface. There is at least one upper conduit, which is connected to the second interface.

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