Negative pressure drainage rapid switching device for multi-endoscope surgical instrument

Abstract

The utility model belongs to the technical field of surgical instruments, and particularly relates to a negative pressure drainage rapid switching device of a multi-endoscope surgical instrument. Comprising a surgical instrument group, an aspirator and a switching module, the surgical instrument set comprises a plurality of surgical instruments which need to be in butt joint with the aspirator through the switching module. The transfer module comprises a transfer main body, and a main pipe and a transfer pipe which are arranged in the transfer main body; instrument butt-joint ports are arranged around the front end of the transfer main body by taking the shaft hole as a circle center to butt different surgical instruments; the main pipe can rotate in the transfer main body; a liquid outlet is formed in the rear end of the main pipe and is butted with an aspirator; the conversion pipe is integrally butted to the main pipe, the space in the pipe is through, and a liquid inlet is formed in the front end; when the main pipe is rotated, the liquid inlet of the conversion pipe can be in butt joint with each instrument butt joint port in a switching mode. The multi-way switch has the advantages that surgical instruments can be quickly switched and adjusted in a pollution-free manner according to surgical conditions through the adjustable multi-way switch, the operation is simple, safe and reliable, the surgical smoothness is improved, and the surgical speed can be greatly increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of surgical instruments, and in particular relates to a negative pressure drainage quick switching device for multi-cavity surgical instruments. Background Art

[0002] With the continuous development of medical technology, laparoscopic surgery is becoming more and more popular due to its advantages of less trauma, less bleeding, and faster recovery. In laparoscopic surgery, instruments such as puncture cannulas, planing handles, and plasma ablation electrodes are used. These instruments need to be connected to a suction device when used during surgery. When the suction connector is replaced while the instrument is being replaced, the water in the instrument will flow out, which may cause contamination of the operating table. For this reason, a simple and adjustable device for switching instruments needs to be designed. Utility Model Content

[0003] The utility model aims to provide a multi-cavity surgical instrument negative pressure drainage quick switching device which is easy to operate, low in cost and can be quickly adjusted according to surgical requirements.

[0004] The multi-cavity surgical instrument negative pressure drainage rapid switching device provided by the utility model comprises a surgical instrument set, an aspirator and a switching module;

[0005] The surgical instrument set includes a number of different surgical instruments that need to be connected to the aspirator via a transfer module; for example: a puncture cannula, a shaver handle, a plasma ablation electrode, etc.;

[0006] The transfer module includes a transfer body and a converter arranged in the transfer body;

[0007] The transfer body is hollow, and corresponding axial holes are provided at the center positions of the front and rear ends of the transfer body; wherein:

[0008] The front end of the transfer body is located near the shaft hole, and a plurality of instrument docking ports are arranged around the shaft hole as the center of the circle, respectively docking different surgical instruments in the surgical instrument group;

[0009] The converter comprises a main pipe and a conversion pipe;

[0010] The main pipe is hollow, and shafts are provided at the front and rear ends. The shafts can be inserted into the shaft holes at the front and rear ends of the transfer body, so that the main pipe can rotate in the transfer body; a liquid outlet is provided at the rear end of the main pipe, which penetrates into the inner space of the main pipe; the liquid outlet is connected to the aspirator;

[0011] The conversion tube is hollow and arranged at the front end of the main pipe, and is integrally connected to the main pipe. The inner spaces of the main pipe and the conversion tube are connected. A liquid inlet is arranged at the front end of the conversion tube.

[0012] When the converter is located in the transfer body, the liquid inlet can switch and seal with each instrument docking port of the transfer body; the liquid inlet of the conversion tube can switch and dock with different instrument docking ports as the converter is rotated.

[0013] In the utility model, a part of the outer shell of the transfer body is opened to expose the instrument docking port and the converter, which is convenient for doctors to operate and observe and confirm the currently switched instrument docking port.

[0014] In the utility model, a limiting protrusion is provided on the conversion tube of the converter; a limiting recessed socket is provided on the transfer body near each device docking port; when the liquid inlet of the conversion tube corresponds to the required device docking port, the limiting protrusion is inserted into the corresponding limiting recessed socket to fix the converter so that it can no longer rotate.

[0015] In the utility model, a spring is provided between the rear end of the converter and the inner side surface of the rear end of the transfer body. When the liquid inlet of the conversion tube and the instrument docking interface are sealed and docked, the spring can support the converter; the converter is moved toward the rear end to compress the spring, so that the limiting protrusion is disengaged from the limiting concave socket, the conversion tube is rotated to switch the instrument docking interface, the converter is released, the spring rebounds, and the limiting protrusion automatically falls into the limiting concave socket corresponding to the switched instrument docking interface.

[0016] In the utility model, a sealing rubber ring is provided at the device docking interface inside the transfer body, or a sealing rubber ring is provided at the liquid inlet of the conversion tube.

[0017] In the utility model, the liquid outlet at the rear end of the main pipe is connected to the suction device through a transfer pipe; the transfer pipe is connected to the liquid outlet of the main pipe, and the front end of the transfer pipe is inserted into the liquid outlet at the rear end of the main pipe so that the main pipe can keep rotating, and the rear end of the transfer pipe is connected to the suction device.

[0018] In the utility model, the transfer tube is divided into a front section, a middle section, and a rear section, and the interior is integrally connected;

[0019] The front section is a straight tube, the outer diameter of which matches the inner diameter of the main tube. The front section can be inserted into the main tube and serves as a rotating shaft for the main tube to rotate.

[0020] The diameter of the middle section is larger than that of the front section and the rear section, and is provided with a protruding positioning pile. The outer side surface of the rear end of the transfer body is located around the shaft hole and is provided with a positioning bayonet. After the transfer tube is partially inserted into the shaft hole, the transfer tube is rotated, and the positioning pile can be laterally transferred into the positioning bayonet, thereby forming the positioning of the transfer tube, and the transfer tube cannot be pulled out of the transfer body;

[0021] The rear section is a straight tube, connected to the suction device;

[0022] The spring has an outer diameter smaller than the diameter of the middle section and an inner diameter larger than the diameter of the front section. The spring can be sleeved on the front section and located between the front end surface of the middle section and the rear end surface of the main pipe.

[0023] In the utility model, the transfer tube is divided into a front section, a middle section, and a rear section, and the interior is integrally connected;

[0024] The front section is a straight tube, the outer diameter of which matches the inner diameter of the main tube. The front section can be inserted into the main tube and serves as a rotating shaft for the main tube to rotate.

[0025] The middle section has a larger diameter than the front section and the rear section, and is provided with an external thread. The rear axle hole of the transfer body is provided with a matching internal thread, and the middle section can be screwed into the rear axle hole of the transfer body and fixed;

[0026] The rear section is a straight tube, connected to the suction device;

[0027] The spring has an outer diameter smaller than the diameter of the middle section and an inner diameter larger than the diameter of the front section. The spring can be sleeved on the front section and located between the front end surface of the middle section and the rear end surface of the main pipe.

[0028] In the utility model, a one-way valve is provided at the pipe opening of the rear section.

[0029] When the utility model is used, the adapter module serves as a multi-way switch to connect the suction device and the surgical instrument group. By controlling the conversion tube to switch to different instrument docking ports, the suction device and different surgical instruments can be docked, and the surgical instruments can be switched to be used promptly and quickly without leakage pollution.

[0030] The utility model has the advantages that the adjustable multi-way switch can quickly and pollution-freely switch and adjust the surgical instruments according to the surgical situation, the operation is simple, safe and reliable, the smoothness of the operation is improved, and the speed of the operation can be greatly accelerated. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the overall module structure of the utility model.

[0032] Figure 2 It is an exploded schematic diagram of the front-end angle adapter module structure of the embodiment.

[0033] Figure 3 It is a schematic diagram of the explosion of the rear end angle adapter module structure of the embodiment.

[0034] Figure 4 It is a schematic diagram of the assembly state of the front-end angle conversion module of the embodiment.

[0035] Figure 5 It is a schematic diagram of the assembly state of the rear end angle conversion module of the embodiment.

[0036] Figure 6It is an overall schematic diagram of connecting two surgical instruments according to an embodiment.

[0037] The numbers in the figure are: 1 is the surgical instrument group, 2 is the suction device, 3 is the adapter module, 4 is the transfer body, 5 is the converter, 6 is the shaft hole, 7 is the instrument docking port, 8 is the main pipe, 9 is the conversion tube, 10 is the limiting protrusion, 11 is the limiting concave socket, 12 is the pin shaft, 13 is the pin shaft hole, 14 is the rotation limiting protrusion, 15 is the liquid outlet, 16 is the liquid inlet, 17 is the transfer tube, 18 is the sealing rubber ring, 19 is the spring, 20 is the positioning pile, 21 is the positioning bayonet, 22 is the transparent material baffle, and 23 is the plug. DETAILED DESCRIPTION

[0038] The utility model comprises a surgical instrument set 1, a suction device 2 and a switching module 3, wherein the surgical instrument set 1 and the suction device 2 are connected via the switching module 3; Figure 1 shown.

[0039] The surgical instrument set 1 includes a number of different surgical instruments that need to be connected to the aspirator via the adapter module 3; for example, three surgical instruments, namely, a puncture cannula, a shaver handle and a plasma ablation electrode, are required for use in a surgical setting.

[0040] The transfer module 3 includes a transfer body 4 and a converter 5 disposed in the transfer body 4;

[0041] The transfer body 4 is a hollow cylinder, and corresponding shaft holes 6 are provided at the center positions of the front and rear ends of the transfer body 4; wherein:

[0042] The front end of the transfer body 4 is located near the shaft hole 6, and three instrument docking ports 7 are arranged around the shaft hole 6 as the center of the circle, respectively docking different surgical instruments in the surgical instrument group, and each instrument docking port 7 is provided with a sealing rubber ring 18;

[0043] The converter 5 includes a main pipe 8 and a conversion pipe 9 .

[0044] The main pipe 8 is a cylindrical pipe, which is hollow. The main pipe 8 is hollow, and shafts are provided at both the front and rear ends. The shafts can be inserted into the shaft holes 6 at the front and rear ends of the transfer body 4, so that the main pipe 8 can rotate in the transfer body 4. Specifically:

[0045] The front end of the main pipe 8 is closed, and a concave cylindrical pin hole 13 is provided in the center; another cylindrical pin 12 is provided as a front shaft rod, and two rotation-limiting protrusions 14 are provided on the surface of the cylinder, and two limiting notches are provided on the corresponding shaft hole 6 at the front end of the transfer body 4. When the pin 12 is inserted into the shaft hole 6 at the front end, the rotation-limiting protrusion 14 can match the insertion limiting notch, so that the pin 12 is fixed relative to the transfer body 4 and cannot rotate, and the end of the pin 12 extending into the transfer body 4 is inserted into the pin hole 13 of the main pipe 8;

[0046] The rear end of the main pipe 8 is opened as a liquid outlet 15, which penetrates into the inner space of the main pipe 8; the liquid outlet 15 at the rear end of the main pipe 8 is connected to the suction device 2 through a transfer pipe 17; the front end of the transfer pipe 17 is inserted into the liquid outlet 15, so that the main pipe 8 can keep rotating, that is, the transfer pipe 17 serves as a rear shaft; the rear end of the transfer pipe 17 is connected to the suction device 2; Figure 2 , Figure 3 As shown; specifically:

[0047] The transfer tube 17 is divided into a front section, a middle section, and a rear section, and the interior is integrally connected;

[0048] The front section is a straight tube, the outer diameter of which matches the inner diameter of the main tube 8. The front section can be inserted into the main tube 8 through the liquid outlet 15 and serves as a rotating shaft for the main tube 8 to rotate.

[0049] The diameter of the middle section is larger than that of the front section and the rear section, and a protruding positioning pile 20 is provided. The outer side surface of the rear end of the transfer body 4 is located around the shaft hole 6 and is provided with a positioning bayonet 21. After the transfer tube 17 is partially inserted into the shaft hole, the transfer tube 17 is rotated, and the positioning pile 20 can be laterally transferred into the positioning bayonet 21, thereby forming the positioning of the transfer tube 17, and the transfer tube 17 cannot be pulled out of the transfer body 4; Figure 5 As shown;

[0050] The rear section is a straight tube, and a one-way valve is provided at the tube mouth of the rear section, which is connected to the suction device 2; the one-way valve adopts a conventional one-way valve structure;

[0051] For example: a one-way sheet structure can be used, with a structural rib at the pipe mouth and a raised hemisphere in the center. The one-way sheet is a rubber round sheet with a hole in the center. The hole diameter is smaller than the raised hemisphere, but it can be expanded to deform so that it can be clamped on the raised hemisphere and tightly cover the entire rear pipe mouth at the same time, thereby forming a recommended one-way valve structure. Liquid can only flow from the surgical instrument side to the suction device, and the rubber one-way sheet will be flushed and folded to expose the rear pipe mouth. When the suction device flows back from one side to the surgical instrument side, the liquid on the back of the rubber one-way sheet is squeezed and flattened to seal the rear pipe mouth, thereby preventing the suction device liquid from flowing back into the surgical instrument group.

[0052] The conversion tube 9 is hollow and arranged parallel to the front end of the main tube 8, and connected as one body. The inner spaces of the main tube 8 and the conversion tube 9 are connected. A liquid inlet 16 is arranged at the front end of the conversion tube 9.

[0053] When the converter 5 is located in the transfer body 4 , the liquid inlet 16 can switch and seal with each instrument docking port 7 of the transfer body 4 ; the liquid inlet 16 of the conversion tube 9 can switch and dock with different instrument docking ports 7 as the converter 5 is rotated.

[0054] The conversion tube 9 is provided with a limiting protrusion 10; the transfer body 4 is provided with a limiting concave socket 11 near each device docking port 7; when the liquid inlet 16 of the conversion tube 9 corresponds to the required device docking port 7, the limiting protrusion 10 is inserted into the corresponding limiting concave socket 11 to fix the converter 5 so that it cannot rotate; Figure 4 As shown;

[0055] A spring 19 is provided between the rear end of the main pipe 8 of the converter 5 and the inner side surface of the rear end of the transfer body 4. The outer diameter of the spring 19 is smaller than the diameter of the middle section of the transfer pipe 17, and the inner diameter is larger than the diameter of the front section. The spring 19 can be sleeved on the front section and located between the front end surface of the middle section and the rear end surface of the main pipe 8. When the liquid inlet 16 of the conversion pipe 9 and the instrument docking port 7 are sealed and docked, the spring 19 can support the converter 5 and press it tightly against the sealing rubber ring 18 of the instrument docking port 7.

[0056] The limiting protrusion 10 is moved to move the converter 5 to the rear end, compressing the spring 19 so that the limiting protrusion 10 is disengaged from the limiting concave socket 11, and the conversion tube 9 is rotated to switch the instrument docking port 7, releasing the converter 5, and the spring 19 rebounds, and the limiting protrusion 10 automatically falls into the limiting concave socket 11 corresponding to the switched instrument docking port 7.

[0057] The transfer body 4 has a partial opening in the outer shell to expose the instrument docking port 7 and the converter 5, which is convenient for doctors to operate and observe to confirm the instrument docking port 7 currently switched to the converter tube 9. A transparent material baffle 22 can be set at the opening position of the partial area, and a conventional detachable buckle structure can be used, which can not only limit the travel of the converter 5 compression spring 19, but also act as a baffle protection to reduce the opening area of ​​the area; after removing the transparent material baffle 22, it is convenient for internal components to be assembled.

[0058] The front end of the transfer body 4 is provided with a protruding end surface of an externally threaded tube for docking at a position corresponding to the instrument docking port 7. The pipeline of the surgical instrument is docked with the externally threaded tube, so that the surgical instrument is connected to the inner cavity of the converter 5 in the transfer body 4 and is transferred to the aspirator 2. When a surgical instrument is reduced, the redundant externally threaded tube can be plugged with a plug 23 to prevent the aspirator 2 from empty suction due to misoperation.

[0059] In addition, the middle section can be provided with an external thread, and the rear axle hole of the transfer body is provided with a matching internal thread. The middle section can be screwed into the rear axle hole of the transfer body through the thread for connection, which simplifies the mold design and the conventional design is not repeated.

[0060] When the utility model is used, the adapter module is used as a multi-way switch to connect the suction device and the surgical instrument group. By controlling the conversion tube to switch to different instrument docking ports, the suction device and different surgical instruments can be docked, and the surgical instruments can be switched in time and quickly without leakage pollution. The utility model can quickly and pollution-freely switch and adjust the surgical instruments according to the surgical situation through the adjustable multi-way switch. The operation is simple, safe and reliable, and the smoothness of the operation is improved, which can greatly speed up the operation.

[0061] Although the above methods are illustrated and described as a series of structures for simplicity of explanation, it should be understood and appreciated that these methods are not specifically limited because according to one or more embodiments, some structures may occur in different orders and / or concurrently with other actions from those illustrated and described herein or not illustrated and described herein but understandable to those skilled in the art.

[0062] The previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to other variations without departing from the spirit or scope of the disclosure. Thus, the disclosure is not intended to be limited to the examples and designs described herein, but should be granted the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multi-cavity surgical instrument negative pressure drainage rapid switching device, characterized in that: Including surgical instrument set, suction device and transfer module; The surgical instrument set includes a number of different surgical instruments that need to be connected to the suction device via a transfer module; the transfer module includes a transfer body and a converter arranged in the transfer body; The transfer body is hollow, and corresponding axial holes are provided at the center positions of the front and rear ends of the transfer body; wherein: The front end of the transfer body is located near the shaft hole, and a plurality of instrument docking ports are arranged around the shaft hole as the center of the circle, respectively docking different surgical instruments in the surgical instrument group; The converter comprises a main pipe and a conversion pipe; The main pipe is hollow, and shafts are provided at the front and rear ends. The shafts can be inserted into the shaft holes at the front and rear ends of the transfer body, so that the main pipe can rotate in the transfer body; a liquid outlet is provided at the rear end of the main pipe, which penetrates into the inner space of the main pipe; the liquid outlet is connected to the aspirator; The conversion tube is hollow and arranged at the front end of the main pipe, and is integrally connected to the main pipe. The inner spaces of the main pipe and the conversion tube are connected. A liquid inlet is arranged at the front end of the conversion tube. When the converter is located in the transfer body, the liquid inlet can switch and seal with each instrument docking port of the transfer body; the liquid inlet of the conversion tube can switch and dock with different instrument docking ports as the converter is rotated.

2. The multi-cavity surgical instrument negative pressure drainage rapid switching device according to claim 1, characterized in that: Part of the outer shell of the transfer body is opened to expose the instrument docking port and the converter; It is convenient for doctors to operate and observe and confirm the currently switched instrument interface.

3. The multi-cavity surgical instrument negative pressure drainage rapid switching device according to claim 2, characterized in that: A limiting protrusion is provided on the conversion tube of the converter; a limiting recessed socket is provided on the transfer body near each instrument docking port; when the liquid inlet of the conversion tube corresponds to the required instrument docking port, the limiting protrusion is inserted into the corresponding limiting recessed socket to fix the converter so that it can no longer rotate.

4. The multi-cavity surgical instrument negative pressure drainage rapid switching device according to claim 3, characterized in that: A spring is provided between the rear end of the converter and the inner side surface of the rear end of the transfer body. When the liquid inlet of the conversion tube and the instrument docking interface are sealed and docked, the spring can support the converter; the converter is moved toward the rear end to compress the spring, so that the limiting protrusion is disengaged from the limiting concave socket, the conversion tube is rotated to switch the instrument docking interface, the converter is released, the spring rebounds, and the limiting protrusion automatically falls into the limiting concave socket corresponding to the switched instrument docking interface.

5. The multi-cavity surgical instrument negative pressure drainage rapid switching device according to claim 4, characterized in that: The instrument docking interface inside the transfer body is provided with a sealing rubber ring, or the liquid inlet of the conversion tube is provided with a circle of sealing rubber ring.

6. The multi-cavity surgical instrument negative pressure drainage rapid switching device according to claim 4, characterized in that: The liquid outlet at the rear end of the main pipe is connected to the suction device through a transfer pipe; the transfer pipe is connected to the liquid outlet of the main pipe, and the front end of the transfer pipe is inserted into the liquid outlet at the rear end of the main pipe so that the main pipe can keep rotating, and the rear end of the transfer pipe is connected to the suction device.

7. The multi-cavity surgical instrument negative pressure drainage rapid switching device according to claim 6, characterized in that: The transfer tube is divided into a front section, a middle section, and a rear section, and the interior is integrally connected; The front section is a straight tube, the outer diameter of which matches the inner diameter of the main tube. The front section can be inserted into the main tube and serves as a rotating shaft for the main tube to rotate. The diameter of the middle section is larger than that of the front section and the rear section, and is provided with a protruding positioning pile. The outer side surface of the rear end of the transfer body is located around the shaft hole and is provided with a positioning bayonet. After the transfer tube is partially inserted into the shaft hole, the transfer tube is rotated, and the positioning pile can be laterally transferred into the positioning bayonet, thereby forming the positioning of the transfer tube, and the transfer tube cannot be pulled out of the transfer body; The rear section is a straight tube, connected to the suction device; The spring has an outer diameter smaller than the diameter of the middle section and an inner diameter larger than the diameter of the front section. The spring can be sleeved on the front section and located between the front end surface of the middle section and the rear end surface of the main pipe.

8. The multi-cavity surgical instrument negative pressure drainage rapid switching device according to claim 6, characterized in that: The transfer tube is divided into a front section, a middle section, and a rear section, and the interior is integrally connected; The front section is a straight tube, the outer diameter of which matches the inner diameter of the main tube. The front section can be inserted into the main tube and serves as a rotating shaft for the main tube to rotate. The middle section has a larger diameter than the front section and the rear section, and is provided with an external thread. The rear axle hole of the transfer body is provided with a matching internal thread, and the middle section can be screwed into the rear axle hole of the transfer body and fixed; The rear section is a straight tube, connected to the suction device; The spring has an outer diameter smaller than the diameter of the middle section and an inner diameter larger than the diameter of the front section. The spring can be sleeved on the front section and located between the front end surface of the middle section and the rear end surface of the main pipe.

9. The multi-cavity surgical instrument negative pressure drainage rapid switching device according to claim 7 or 8, characterized in that: A one-way valve is arranged at the position of the rear pipe opening.

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