Dual-purpose switching suction device for discharging liquid and gas in operation

Abstract

The embodiment of the utility model provides a dual-purpose switching suction device for discharging liquid and gas in an operation, and is applied to the technical field of medical instruments. The suction device comprises a special-shaped tube which comprises a first guide tube and a second guide tube connected to one end of the first guide tube, and the diameter of the second guide tube is smaller than that of the first guide tube; the outer sleeve is detachably installed on the special-shaped pipe and wraps the outer side of the second guide pipe, and an interlayer is formed between the inner diameter of the outer sleeve and the outer diameter of the second guide pipe; the telescopic exhaust hood is telescopically arranged in an interlayer formed between the second guide pipe and the outer sleeve, when the telescopic exhaust hood extends out of the interlayer, the telescopic exhaust hood can be formed, and when the telescopic exhaust hood retracts into the interlayer, the telescopic exhaust hood can be folded and stored; and the operation part is fixedly connected to the telescopic exhaust hood and penetrates through a through groove in the outer wall of the outer sleeve. The device is simple and novel in structure, convenient to operate and low in cost, the dual functions of efficient smoke suction and liquid suction are integrated, and the operation time is shortened.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to a suction device capable of switching between liquid and gas discharge during surgery. Background Art

[0002] During clinical surgery, electroresection produces odorous gases caused by tissue burning. On the one hand, the odorous gases form smoke that affects the doctor's field of vision during the operation. On the other hand, patients and doctors will feel uncomfortable and their health will be harmed after inhaling them into their respiratory tracts. The existing liquid suction tubes are too single-function and can only suck liquids used in surgery, such as cleaning liquids and blood.

[0003] However, when smoke needs to be sucked out, another umbrella-shaped cover needs to be installed, which is complicated to operate and takes time, which increases the burden on medical staff, prolongs the operation time, and reduces the efficiency of the operation. Utility Model Content

[0004] The utility model provides a suction device for switching between liquid and gas discharge during surgery, which solves the technical problems that the existing suction tube has a single function and needs to assemble other accessories when it is needed to collect the odorous gas generated by tissue burning during surgery, which increases the workload of medical staff, prolongs the operation time, and reduces the operation efficiency.

[0005] A suction device for switching between liquid and gas discharge during surgery, comprising:

[0006] A special-shaped tube, comprising a first conduit and a second conduit connected to one end of the first conduit, wherein the diameter of the second conduit is smaller than that of the first conduit; wherein the port of the first conduit away from the second conduit serves as a gas or liquid discharge port and is connected to a negative pressure device, and the port of the second conduit away from the first conduit serves as a gas or liquid suction port;

[0007] An outer sleeve, which is detachably mounted on the special-shaped tube and covers the outside of the second conduit, and forms a sandwich between its inner diameter and the outer diameter of the second conduit;

[0008] A retractable smoke exhaust hood is retractably arranged in the interlayer formed between the second conduit and the outer sleeve, and can form a smoke exhaust hood when it is extended out of the interlayer, and can be folded and stored when it is retracted into the interlayer;

[0009] The operating part is fixedly connected to the telescopic smoke exhaust hood and passes through the through slot on the outer wall of the outer sleeve.

[0010] Furthermore, the retractable smoke exhaust hood comprises:

[0011] A plurality of elastic threads, including a straight thread located on the interlayer side and an arc-shaped thread integrally formed at one end of the straight thread;

[0012] The elastic film is wrapped and fixed on the outer sides of the plurality of elastic wires. When the arc-shaped wires extend out of the interlayer, the elastic film is stretched out to form a trumpet shape under the action of elastic force, and the side of the elastic film close to the straight wires will never separate from the interlayer.

[0013] Furthermore, the operating part is one and is installed on one of the straight wires of the elastic wire.

[0014] Furthermore, a sealing filler is provided between the outer wall of the second duct and the retractable smoke exhaust hood.

[0015] Furthermore, the end of the outer sleeve close to the first catheter is connected to the first catheter via a thread or a clamping component.

[0016] Furthermore, when a threaded connection is selected, an inner thread is provided at the end of the outer sleeve close to the first conduit, and an outer thread is provided at the outer side of the end of the first conduit close to the second conduit, and the inner thread is meshed with the outer thread.

[0017] Furthermore, sealing rings are provided between the outer diameters of both ends of the straight wire and the outer sleeve.

[0018] Furthermore, an inner thread is provided at the end of the outer sleeve close to the first conduit, and an outer thread is provided on the special-shaped tube, and the inner thread is meshed with the outer thread to realize a detachable connection between the outer sleeve and the special-shaped tube.

[0019] Furthermore, the external thread is arranged on the outer side of the end of the first conduit close to the second conduit.

[0020] Furthermore, the end of the outer sleeve close to the first conduit and the second conduit are connected to each other in a detachable manner via a clamping component.

[0021] Furthermore, the second catheter extends out of the port of the outer sleeve by a certain length or the port of the second catheter is flush with the port of the outer sleeve.

[0022] Furthermore, the through groove is a strip groove and is arranged along the length direction of the outer sleeve.

[0023] Furthermore, the through groove is an arc-shaped groove and is arranged along the length direction of the outer sleeve.

[0024] Furthermore, the length of the attraction device is 150-200 mm.

[0025] Compared with the prior art, the beneficial effects of the utility model are:

[0026] The utility model has a simple and novel structure, is easy to operate and has low cost. Although it is a disposable medical product, it can be used to absorb liquids and can also be switched to absorb smoke generated by tissue cutting, etc. It can be switched repeatedly, which further reduces the cost. It integrates the dual functions of efficient smoking and liquid absorption, effectively reduces the workload of medical staff during surgery, has simple switching operation, shortens the operation time, and is very practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. The accompanying drawings are used to better understand the present solution and do not constitute a limitation of the present disclosure. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, among which:

[0028] Figure 1 A schematic diagram showing the appearance of a suction device for switching between liquid and gas discharge during surgery according to an embodiment of the utility model is shown;

[0029] Figure 2 A schematic diagram showing the appearance of a smoke exhaust hood in a suction device capable of switching between liquid and gas exhaust during surgery according to an embodiment of the utility model when it is extended;

[0030] Figure 3 A vertical cross-sectional view of a suction device for switching between liquid and gas discharge during surgery according to an embodiment of the utility model is shown;

[0031] Figure 4 Shows Figure 1 The enlarged schematic diagram of the middle A part;

[0032] Figure 5 Shows Figure 2 The enlarged schematic diagram of the middle part B;

[0033] Figure 6 Shows Figure 3 Enlarged schematic diagram of part C in the middle.

[0034] Description of reference numerals:

[0035] 1: special-shaped tube, 11: first conduit, 12: second conduit, 2: outer sleeve, 3: retractable smoke exhaust hood, 31: elastic wire, 311: straight wire, 312: curved wire; 32: elastic membrane, 4: operating part. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present disclosure belongs. It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", "fourth", etc. are used only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0039] The following is a detailed description of a suction device for switching between liquid and gas discharge during surgery according to an embodiment of the utility model in conjunction with the accompanying drawings:

[0040] like Figure 1-6 As shown, a suction device for switching between liquid and gas discharge during surgery includes: a special-shaped tube 1, including a first catheter 11 and a second catheter 12 connected to one end of the first catheter 11, the diameter of the second catheter 12 is smaller than the first catheter 11; wherein the port of the first catheter 11 away from the second catheter 12 serves as a gas or liquid discharge port and is connected to a negative pressure device, and the port of the second catheter 12 away from the first catheter 11 serves as a gas or liquid suction port; wherein the outer diameter of the first catheter 11 is about 100 mm, and the outer diameter of the second catheter 12 is about 5 mm.

[0041] An outer sleeve 2 is detachably mounted on the special-shaped tube 1 and covers the outer side of the second conduit 12, and a sandwich is formed between its inner diameter and the outer diameter of the second conduit 12, wherein the outer diameter of the outer sleeve 2 is about 100 mm, and the spacing of the sandwich is 1-2 mm;

[0042] A retractable smoke exhaust hood 3 is retractably arranged in the interlayer formed between the second conduit 12 and the outer sleeve 2, and can form a smoke exhaust hood when it is extended out of the interlayer, and can be folded and stored when it is retracted into the interlayer;

[0043] The operating part 4 is fixedly connected to the telescopic smoke exhaust hood 3 and passes through the through slot on the outer wall of the outer sleeve 2.

[0044] Furthermore, the retractable smoke exhaust hood 3 comprises:

[0045] There are several elastic wires 31, including a straight wire 311 located on the interlayer side and a curved wire 312 integrally formed at one end of the straight wire;

[0046] The elastic film 32 is wrapped and fixed on the outer sides of the plurality of elastic threads 31. Figure 5 As shown, optionally, the elastic membrane 32 is made of silicone material. When the arc-shaped wire 312 extends out of the interlayer, the elastic membrane 32 is stretched out to form a trumpet shape under the action of elastic force, and the side of the elastic membrane close to the straight wire will never be separated from the interlayer, thereby expanding the diameter of the smoke suction port while ensuring the negative pressure effect, improving the smoke suction effect, and effectively reducing the diffusion of smoke.

[0047] Furthermore, sealing rings are provided between the outer diameters of both ends of the straight wire and the outer sleeve to improve the sealing between the through groove at the operating part and the interlayer to prevent leakage due to the liquid flowing back along the interlayer through the through groove on the outer sleeve when the suction device is tilted when the liquid is sucked.

[0048] Further, the operating part 4 is one and is installed on one of the straight wires 311 of the elastic wire 31. Of course, in some embodiments, multiple, for example, two, operating parts can be provided, respectively provided on different straight wires 311, for easy operation.

[0049] In some embodiments, the elastic membrane 32 may be replaced by a non-elastic membrane, which can also be stretched by elastic wire to form an umbrella-shaped trumpet mouth.

[0050] Furthermore, a sealing filler is provided between the outer wall of the second duct 12 and the retractable smoke exhaust hood 3, which can further improve the negative pressure effect of the bell mouth and effectively expand the external smoke flow into the bell mouth.

[0051] Furthermore, the end of the outer sleeve 2 close to the first catheter 11 is connected to the first catheter 11 through a thread or a clamping component.

[0052] Furthermore, when a threaded connection is selected, an inner thread is provided at the end of the outer sleeve 2 close to the first conduit 11, and an outer thread is provided at the outer side of the end of the first conduit 11 close to the second conduit 12, and the inner thread is meshed with the outer thread.

[0053] Furthermore, the second conduit 12 extends out of the port of the outer sleeve 2 by a certain length (e.g. Figure 4 As shown), or the port of the second conduit 12 is flush with the port of the outer sleeve 2.

[0054] Furthermore, the through groove is a strip groove and is arranged along the length direction of the outer sleeve.

[0055] Furthermore, the through groove is an arc-shaped groove and is arranged along the length direction of the outer sleeve.

[0056] Furthermore, the entire length of the attraction device is 150-200 mm.

[0057] The present invention is a dual-purpose suction device for liquid and gas discharge during surgery. When the liquid during surgery needs to be sucked, the medical staff first connects the first catheter 11 of the suction device to the liquid suction device, operates the operating part 4 to make it in the uppermost position, at which time the retractable smoke exhaust hood 3 is stored in the interlayer between the outer sleeve 2 and the second catheter 12, and starts the liquid suction device to suck the liquid during surgery;

[0058] When the odorous gas of tissue burning is generated during the electroresection during the operation, the first conduit 11 of the suction device is first connected to the gas suction device, and the operating part 4 is operated to be in the lowest position. At this time, the telescopic smoke exhaust hood 3 extends out of the interlayer between the outer sleeve 2 and the second conduit 12 to form a trumpet shape, and the gas suction device is started to suck the odorous gas generated during the operation;

[0059] If it is necessary to repeatedly aspirate gas or liquid during the entire operation, the above operation can be repeated and the operating part 4 can be switched back and forth to achieve the purpose.

[0060] The inhalation device of the utility model is a disposable medical device that can be discarded after the entire operation is completed. It has a simple structure and low cost. Since it integrates the dual functions of efficient smoking and liquid suction, it further reduces the cost and effectively reduces the workload of medical staff during the operation. The switching operation is simple, which shortens the operation time.

[0061] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be performed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0062] The above specific implementations do not constitute a limitation on the protection scope of the present utility model. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A suction device for switching between liquid and gas discharge during surgery, characterized in that: include: A special-shaped tube, comprising a first conduit and a second conduit connected to one end of the first conduit, wherein the diameter of the second conduit is smaller than that of the first conduit; wherein the port of the first conduit away from the second conduit serves as a gas or liquid discharge port and is connected to a negative pressure device, and the port of the second conduit away from the first conduit serves as a gas or liquid suction port; An outer sleeve, which is detachably mounted on the special-shaped tube and covers the outside of the second conduit, and forms a sandwich between its inner diameter and the outer diameter of the second conduit; A retractable smoke exhaust hood is retractably arranged in the interlayer formed between the second conduit and the outer sleeve, and can form a smoke exhaust hood when it is extended out of the interlayer, and can be folded and stored when it is retracted into the interlayer; The operating part is fixedly connected to the telescopic smoke exhaust hood and passes through the through slot on the outer wall of the outer sleeve.

2. The suction device according to claim 1, characterized in that: The retractable smoke exhaust hood comprises: A plurality of elastic threads, including a straight thread located on the interlayer side and an arc-shaped thread integrally formed at one end of the straight thread; The elastic film is wrapped and fixed on the outer sides of the plurality of elastic wires. When the arc-shaped wires extend out of the interlayer, the elastic film is stretched out to form a trumpet shape under the action of elastic force, and the side of the elastic film close to the straight wires will never separate from the interlayer.

3. The suction device according to claim 2, characterized in that: The operating part is one and is installed on one of the straight wires of the elastic wire.

4. The suction device according to claim 1, characterized in that: A sealing filler is arranged between the outer wall of the second conduit and the telescopic smoke exhaust hood.

5. The suction device according to claim 1, characterized in that: The end of the outer sleeve close to the first catheter is connected to the first catheter through a thread or a clamping component.

6. The suction device according to claim 5, characterized in that: When the threaded connection is selected, the end of the outer sleeve close to the first conduit is provided with an internal thread, and the outer side of the end of the first conduit close to the second conduit is provided with an external thread, and the internal thread is meshed with the external thread.

7. The suction device according to claim 2, characterized in that: Sealing rings are arranged between the outer diameters of both ends of the straight wire and the outer sleeve.

8. The suction device according to claim 1, characterized in that: The second conduit extends out of the port of the outer sleeve by a certain length or the port of the second conduit is flush with the port of the outer sleeve.

9. The suction device according to claim 1, characterized in that: The through groove is a strip-shaped groove and is arranged along the length direction of the outer sleeve.

10. The suction device according to claim 1, characterized in that: The through groove is an arc-shaped groove and is arranged along the length direction of the outer sleeve.

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