Dual lumen electrical snare

Abstract

The utility model relates to a kind of double-cavity electric snare, including double-cavity pipe, the two pipe cavities of double-cavity pipe are liquid medicine cavity and electric cutting cavity respectively, cable is arranged in electric cutting cavity, and the front end of cable is connected with sleeve ring;Liquid injection connector, double-cavity pipe rear end is inserted into liquid injection connector and does fixed connection, the liquid injection channel of liquid injection connector is communicated with liquid medicine cavity, the rear end of liquid injection connector is connected with handle assembly, the rear end of cable passes through liquid injection connector and is connected with the slip ring of handle assembly;Spray head, spray head is located in liquid medicine cavity and is set in liquid medicine cavity front end, and liquid medicine in liquid medicine cavity is sprayed forward by spray head.Using double-cavity integration design, the function of resection and liquid spraying is combined, compared with ordinary electric snare, the double-cavity electric snare of the utility model avoids step-by-step operation in traditional surgical procedure, improves surgical efficiency, greatly improves the smoothness and efficiency of operation.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, specifically to a dual-cavity electric coil device. Background Technology

[0002] When using a common electric snare to remove polyps, the lesion boundary must first be stained with a disposable endoscopic spray tube (such as indigo carmine or methylene blue), and then the electric snare is used to remove the polyp. After removal, the wound is sprayed with hemostatic drugs or rinsed with saline.

[0003] Traditional electric snares and spray pipes need to be operated separately, requiring repeated instrument changes during surgery, which affects surgical efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a dual-cavity electric snare device to solve the technical problem that the electric snare device and the spray tube need to be operated separately when removing polyps with the traditional electric snare device, which affects the efficiency of the operation.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A dual-cavity electric coil device is provided, comprising:

[0007] A dual-lumen tube, wherein the two lumens of the dual-lumen tube are a drug solution chamber and an electrocautery chamber, and a cable is threaded through the electrocautery chamber, with a collar connected to the front end of the cable;

[0008] The liquid injection connector has the rear end of the dual-lumen tube inserted into it and fixedly connected. The liquid injection channel of the liquid injection connector is connected to the liquid cavity. The rear end of the liquid injection connector is connected to the handle assembly. The rear end of the cable passes through the liquid injection connector and is connected to the slip ring of the handle assembly.

[0009] A spray head is located inside the liquid chamber and positioned at the front end of the liquid chamber, through which the liquid in the liquid chamber is sprayed forward.

[0010] Furthermore, the spray head includes

[0011] A fixing sleeve is sealed and fixedly installed inside the liquid cavity, and the fixing sleeve has a core cavity and a spray cavity;

[0012] The spray core is disposed inside the core cavity, and a spiral flow channel is formed between the outer wall of the spray core and the inner wall of the core cavity. The spray cavity is connected to the drug liquid cavity through the spiral microflow channel.

[0013] Furthermore, the outer wall of the spray core is provided with at least three spiral grooves, and a spiral flow channel is formed between the spiral grooves and the inner wall of the core cavity.

[0014] Furthermore, the spray cavity includes a spray hole, a front conical hole, and a rear conical hole, with the rear conical hole connected to the core cavity.

[0015] Furthermore, the outer wall of the fixing sleeve is provided with multiple sealing ridges.

[0016] Furthermore, the rear end of the dual-lumen tube is inserted into the injection connector and fixed with adhesive.

[0017] Furthermore, both connectors of the injection fitting are Luer connectors.

[0018] The beneficial effects of this utility model are:

[0019] This utility model's dual-cavity electric snare adopts a dual-cavity integrated design, combining the functions of resection and drug spraying. Compared with ordinary electric snares, this utility model's dual-cavity electric snare avoids the step-by-step operation in the traditional surgical procedure, improves surgical efficiency, and greatly enhances the smoothness and efficiency of the operation. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the dual-cavity electric coil device of this utility model;

[0022] Figure 2 This is a schematic diagram of the head of the dual-cavity electric coil device of this utility model;

[0023] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 It is a 3D view of the spray head;

[0025] Figure 5 This is a half-section view of the spray head;

[0026] Figure 6 This is a connection diagram between the double-lumen tube and the injection port;

[0027] Among them, 1. double-lumen tube, 11. cable, 12. collar;

[0028] 2. Handle assembly; 21. Slip ring; 22. Electrode plug; 23. Handle lever; 24. Knob;

[0029] 3. Injection connector; 31. Injection channel;

[0030] 4. Fixing sleeve; 41. Core cavity; 42. Spray cavity; 43. Sealing ridge;

[0031] 5. Spray core, 51. Spiral groove. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] This application provides a dual-cavity electric coil device, which will be described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments of this application. Furthermore, the descriptions of each embodiment have their own emphasis; parts not described in detail in a certain embodiment can be referred to in the relevant descriptions of other embodiments.

[0034] To address the technical problem in existing technologies where the electric snare and spray tube need to be operated separately when removing polyps, thus affecting surgical efficiency, an embodiment of this application provides a dual-lumen electric snare. This is described in detail below.

[0035] like Figures 1 to 6 As shown, a dual-cavity electric coil device includes...

[0036] The double-lumen tube 1 has two lumens, namely a drug solution chamber and an electrocautery chamber. A pull cable 11 is threaded through the electrocautery chamber, and a collar 12 is connected to the front end of the pull cable 11.

[0037] Injection connector 3, the rear end of the double-lumen tube 1 is inserted into injection connector 3 and fixedly connected, the injection channel 31 of injection connector 3 is connected to the drug cavity, the rear end of injection connector 3 is connected to handle assembly 2, and the rear end of pull cable 11 passes through injection connector 3 and is connected to slip ring 21 of handle assembly 2.

[0038] A spray head is located inside the liquid chamber and positioned at the front end of the liquid chamber, through which the liquid in the liquid chamber is sprayed forward.

[0039] Specifically, as an optional implementation method in this embodiment, such as Figure 4 and Figure 5 As shown, the spray head includes a fixing sleeve 4, which is sealed and fixedly installed in the liquid chamber. The fixing sleeve 4 has a core cavity 41 and a spray cavity 42.

[0040] The spray core 5 is disposed inside the core cavity 41. A spiral flow channel is formed between the outer wall of the spray core 5 and the inner wall of the core cavity 41. The spray cavity 42 is connected to the liquid medicine cavity through the spiral microflow channel.

[0041] Specifically, as an optional implementation method in this embodiment, such as Figure 4and Figure 5 As shown, the outer wall of the spray core 5 is provided with at least three spiral grooves 51, and the spiral grooves 51 form a spiral flow channel between the inner wall of the core cavity 41.

[0042] The three-coil spiral microchannel design allows the liquid to be sprayed evenly through multi-stage shearing action as it passes through the spiral channel.

[0043] Specifically, as an optional implementation method in this embodiment, such as Figure 5 As shown, the spray cavity 42 includes a spray hole, a front conical hole and a rear conical hole, and the rear conical hole is connected to the core cavity 41.

[0044] The rear conical orifice design facilitates the input of the liquid into the spray nozzle, which is a cylindrical orifice. The front conical orifice design can increase the atomized spray coverage area by 40% compared to ordinary nozzles, and avoids the endoscopic field of view caused by the accumulation of large droplets.

[0045] Specifically, as an optional implementation method in this embodiment, such as Figure 4 As shown, the outer wall of the fixing sleeve 4 is provided with 2-3 sealing ridges 43.

[0046] The sealing ridge 43 is annular, which allows the fixing sleeve 4 to be interference-fitted in the liquid cavity, thus enhancing the sealing performance.

[0047] Specifically, as an optional implementation method in this embodiment, such as Figure 6 As shown, the rear end of the dual-lumen tube 1 is inserted into the injection connector 3 and fixed with glue.

[0048] Specifically, as an optional implementation method in this embodiment, such as Figure 6 As shown, both connectors of the injection connector 3 are Luer connectors. The use of Luer connectors facilitates quick and easy connection of the injection device and the handle assembly 2.

[0049] The handle assembly 2 in this embodiment is prior art. It includes a knob 24, a handle rod 23 and a slip ring 21. The slip ring 21 is connected to a cable 11 and an electrode plug 22 is provided on the slip ring 21. The handle rod 23 is connected to the liquid injection connector 3 by rotation.

[0050] For details on handle assembly 2, please refer to the prior patent, CN222899279U Adjustable Bending Electric Ring Sleeve.

[0051] The working principle of this utility model dual-cavity electric snare device is as follows: the product enters the human body through the endoscope channel, the head of the product is aligned with the lesion, and indigo carmine is sprayed through the spray head at the head to mark the lesion, so that the target tissue is clearly stained. The snare 12 is wrapped around the lesion and connected to a high-frequency electrosurgical unit to remove the target tissue and complete the surgery.

[0052] This utility model of a dual-cavity electric coil holder has the following advantages:

[0053] 1. It combines cutting and spraying functions, breaking the traditional mode where the electric snare and spraying pipe need to be operated separately and the instruments need to be changed repeatedly.

[0054] 2. The electrocautery chamber and the drug solution chamber are completely independent channels inside the instrument, ensuring that the drug solution will not contaminate the collar 12 and also preventing the drug solution from deteriorating due to the action of electric current.

[0055] 3. Optimize the spraying position. The spray head is designed at the head of the snare to ensure that the spray can directly cover the operating area. Multi-mode spraying is supported by adjusting the nozzle structure (atomizing nozzle, direct spray nozzle) and various types of liquids (physiological saline, hemostatic agent, sclerosing agent, staining agent).

[0056] How to use the dual-cavity electric coil device of this utility model:

[0057] 1. Instrument insertion: Align the product tip with the lesion, connect the infusion device, and spray indigo carmine or methylene blue to mark the lesion.

[0058] 2. Resection procedure: Push the slip ring 21 to open the sheath, then bring the sheath close to and enclose the target tissue. Pull the slip ring 21 to tighten the collar 12 and constrict the tissue. Connect the high-frequency electrosurgical unit, perform electrocoagulation followed by electroresection to separate the target tissue from the remaining tissue.

[0059] 3. Using an infusion setter connected to infusion connector 3, spray saline solution or a coagulation solution onto the surgical wound to rinse and stop bleeding by constricting blood vessels.

[0060] 4. Instrument withdrawal: Pull the slip ring 21, the collar 12 retracts into the outer tube, withdraw the product from the endoscope, and use the mesh forceps to remove the polyp.

[0061] All the devices (parts whose specific structures are not specified) selected in this application are general standard parts or parts known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0062] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0063] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0064] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Additionally, the shown or discussed mutual couplings, direct couplings, or communication connections may be through some communication interfaces; indirect couplings or communication connections between devices or units may be electrical, mechanical, or other forms.

[0065] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0066] In addition, in the various embodiments of this utility model, each functional unit can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0067] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A dual-cavity electric coil device, characterized in that, include A double-lumen tube (1) has two lumens, namely a drug solution chamber and an electrocautery chamber, and a cable (11) is threaded through the electrocautery chamber. The front end of the cable (11) is connected to a collar (12). The liquid injection connector (3) is inserted into the liquid injection connector (3) and fixedly connected at the rear end of the double-lumen tube (1). The liquid injection channel (31) of the liquid injection connector (3) is connected to the liquid cavity. The rear end of the liquid injection connector (3) is connected to the handle assembly (2). The rear end of the cable (11) passes through the liquid injection connector (3) and is connected to the slip ring (21) of the handle assembly (2). A spray head is located inside the liquid chamber and positioned at the front end of the liquid chamber, through which the liquid in the liquid chamber is sprayed forward.

2. The dual-cavity electric coil device according to claim 1, characterized in that, The spray head includes A fixed sleeve (4) is sealed and fixedly installed inside the liquid cavity. The fixed sleeve (4) has a core cavity (41) and a spray cavity (42). The spray core (5) is disposed in the core cavity (41). A spiral flow channel is formed between the outer wall of the spray core (5) and the inner wall of the core cavity (41). The spray cavity (42) is connected to the liquid medicine cavity through the spiral micro-flow channel.

3. The dual-cavity electric coil device according to claim 2, characterized in that, The outer wall of the spray core (5) is provided with at least three spiral grooves (51), and a spiral flow channel is formed between the spiral grooves (51) and the inner wall of the core cavity (41).

4. The dual-cavity electric coil device according to claim 2, characterized in that, The spray cavity (42) includes a spray hole, a front conical hole and a rear conical hole, the rear conical hole being connected to the core cavity (41).

5. The dual-cavity electric coil holder according to claim 2, characterized in that, The outer wall of the fixing sleeve (4) is provided with multiple sealing ridges (43).

6. The dual-cavity electric coil device according to claim 1, characterized in that, The rear end of the double-lumen tube (1) is inserted into the liquid injection connector (3) and fixed with glue.

7. The dual-cavity electric coil holder according to claim 1, characterized in that, Both connectors of the injection connector (3) are Luer connectors.

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