Endoscope and endoscope system
By installing insulating components at key locations on the endoscope, the problem of leakage current during the use of high-frequency electrosurgical units was solved, achieving improved safety and cost control.
Patent Information
- Application Number
- CN202422462317.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-10-11
AI Technical Summary
Existing endoscopes are prone to generating high-frequency leakage current when using high-frequency electrosurgical units, which can lead to potential patient burns and environmental pollution. Current technologies are unable to effectively suppress this problem.
Insulating components, such as insulating rubber sheets, insulating rings, insulating sleeves, insulating fixing plates, and silicone gaskets, are installed at the endoscope's tube, suction tube, and pipe connectors to enhance insulation and suppress leakage current.
Without altering the original structure and materials of the endoscope, high-frequency leakage current is effectively suppressed, improving safety, meeting current measurement standards, and reducing production costs.
Smart Images
Figure CN223529415U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of medical endoscopy technology, and more particularly to an endoscope and an endoscopy system. Background Technology
[0002] Endoscopes are often used in conjunction with high-frequency devices to achieve the therapeutic effects of high-frequency electrosurgery. Endoscopes should meet the relevant testing standards for thermal hazards and other dangers caused by interconnection with high-frequency surgical equipment.
[0003] The test was conducted according to the capacitive coupling high-frequency current measurement scheme specified in the standard, which is as follows: Figure 1 The high-frequency surgical device 1 is placed on an insulated workbench 2. Two power lines are led out from the high-frequency surgical device 1: a first power line 101 and a second power line 102. The distance between the first power line 101 and the second power line 102 is 0.5m. The first power line 101 is connected to one end of the endoscope 3. The external conductive portion 301 of the endoscope 3 is connected to the second power line 102 via a first non-inductive resistor 4, a high-frequency oscilloscope 5, and a neutral electrode 6. The endoscope 3 is connected to a high-frequency electrosurgical unit 302 and a side-exit cable 303. The endoscope 3 is wrapped with a metal foil 7. The distance between the metal foil 7 and the first power line 101 is 0.25m, and the distance between the metal foil 7 and the second power line 102 is 0.75m. The metal foil 7 is connected to the second power line 102 via a second non-inductive resistor 8.
[0004] The measurement result of capacitively coupled high-frequency current should not exceed the limit of 50mA to prevent excessive leakage current from burning patients or polluting the environment.
[0005] How to suppress the high-frequency leakage current generated by the endoscope is the technical problem to be solved in this application. Utility Model Content
[0006] The purpose of this application is to provide an endoscope and an endoscope system to suppress high-frequency leakage current generated by the endoscope.
[0007] To achieve the above objectives, the embodiments of this application adopt the following technical solutions.
[0008] In a first aspect, embodiments of this application provide an endoscope, including a channel tube, a tube connector, a suction tube, an insertion tube, a housing, and an insulating assembly;
[0009] The clamp tube, the pipe connector, the suction tube, and the insulation assembly are disposed within the housing;
[0010] The clamp tube is connected to the first port of the pipe connector, the second port of the pipe connector is connected to the suction tube, and the third port of the pipe connector is connected to the insertion tube.
[0011] The insulating component is located in at least one of the following locations:
[0012] Between the clamp tube and the outer shell, between the suction tube and the outer shell, and between the pipe connector and the outer shell.
[0013] Compared with the prior art, this application has the following advantages:
[0014] The endoscope provided in this application embodiment can enhance its insulation and suppress high-frequency leakage current caused by high-frequency electrosurgical procedures by installing insulating components at appropriate locations, without changing the original structure, size, and materials of the endoscope's forceps tube and suction tube. Installing insulating components at multiple locations enables endoscopes that originally did not meet standard leakage current requirements to meet those requirements, thus improving safety at a low cost.
[0015] Optionally, the insulating component includes an insulating sheet, which is located at least in one of the following positions:
[0016] Between the clamp tube and the outer shell, between the suction tube and the outer shell, and between the pipe connector and the outer shell.
[0017] Insulating rubber sheets are a mature type of insulating component with low cost, which helps improve production efficiency.
[0018] Optionally, the insulating component includes an insulating ring;
[0019] The insulating ring is fitted onto the clamp tube.
[0020] The insulating ring can suppress leakage current caused by the capacitance between the object inside the clamp tube and the object outside the clamp tube.
[0021] Optionally, the end of the clamp tube away from the pipe connector is connected to the clamp opening, and the insulating ring is sleeved on the clamp tube at a first position, the distance between the first position and the clamp opening being less than the distance between the first position and the pipe connector.
[0022] Insulating rings can be fitted onto critical locations in the clamping tube to effectively suppress leakage current.
[0023] Optionally, at least a portion of the suction tube is suspended.
[0024] The insulating component includes a first insulating sleeve; the first insulating sleeve is fitted onto the suction tube.
[0025] Suspending the suction tube in the air can increase the insulation around the suction tube by utilizing the air.
[0026] The first insulating sleeve can suppress leakage current caused by the capacitance between the object inside the suction tube and the object outside the suction tube.
[0027] Optionally, the insulation assembly includes an insulation fixing plate;
[0028] The pipe connector is fixedly connected to the outer casing via the insulating fixing plate.
[0029] Insulating fixing plates can fix parts such as pipe fittings and pipe connectors, preventing leakage current crosstalk caused by displacement of these parts.
[0030] Optionally, the insulating assembly includes a second insulating sleeve;
[0031] The endoscope also includes a metal connector and internal parts, the metal connector being used to install the internal parts to the housing; the second insulating sleeve is fitted onto the metal connector.
[0032] Internal components may include circuit boards and other circuit components. Metal connectors may be studs, which can promote the discharge of static electricity from the circuit and prevent static electricity from damaging the circuit. At the same time, the second insulating sleeve can suppress the high-frequency leakage current generated by the capacitance between the metal connector and other objects.
[0033] Optionally, the insulating component includes a silicone sealing gasket;
[0034] The silicone sealing gasket is located between the ferrule and the pipe connector.
[0035] Silicone gaskets can isolate conduits and pipe fittings, especially when the conduits or pipe fittings have metal parts. Silicone gaskets can isolate the metal parts and suppress high-frequency leakage currents generated between the metal parts and other parts.
[0036] Optionally, the insulating assembly includes an insulating rubber sheet, an insulating ring, a first insulating sleeve, a second insulating sleeve, an insulating fixing plate, a silicone sealing gasket, metal connectors, and internal parts;
[0037] The insulating rubber sheet is located between the clamp tube and the outer shell, between the suction tube and the outer shell, and between the pipe connector and the outer shell;
[0038] The insulating ring is sleeved on the clamp tube;
[0039] At least a portion of the suction tube is suspended in the air; the first insulating sleeve is fitted over the suction tube;
[0040] The pipe connector is fixedly connected to the outer casing via the insulating fixing plate;
[0041] The metal connector is used to install the internal parts to the housing; the second insulating sleeve is fitted onto the metal connector;
[0042] The silicone sealing gasket is located between the ferrule and the pipe connector;
[0043] The pipe connector is a tee fitting.
[0044] T-fittings can achieve the connection of three pipes—the channel pipe, the suction pipe, and the insertion pipe—at low cost.
[0045] If additional piping is required, the pipe fittings can be configured as four-way fittings, etc.
[0046] Secondly, embodiments of this application provide an endoscope system comprising a high-frequency electrosurgical unit and an endoscope as described in the first aspect. The high-frequency electrosurgical unit is used to enter through the clamping tube and exit through the insertion tube.
[0047] The beneficial effects of the endoscopic system are consistent with those of the endoscopes described above. Attached Figure Description
[0048] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0049] Figure 1 This is a schematic diagram of a capacitively coupled high-frequency current measurement scheme for endoscopes in the prior art.
[0050] Figure 2 A schematic diagram of an endoscope provided in an embodiment of this application;
[0051] Figure 3 A schematic diagram of the tubing connection of an endoscope provided in an embodiment of this application;
[0052] Figure 4 A schematic diagram of an insulating ring sleeved on a clamping tube, provided for an embodiment of this application;
[0053] Figure 5 A schematic diagram illustrating the use of a silicone sealing gasket to isolate a pipe and a pipe connector, as provided in an embodiment of this application.
[0054] Figure 6 A schematic diagram of an insulating fixing plate for fixing a pipe connector provided in an embodiment of this application;
[0055] Figure 7 This is a schematic diagram of an insulating diaphragm at an suction port, provided in an embodiment of this application.
[0056] Explanation of reference numerals in the attached figures:
[0057] 1. High-frequency surgical equipment
[0058] 101 First Power Line
[0059] 102 Second power cord
[0060] 2 Insulated workbench
[0061] 3. Endoscope
[0062] 301 Exposed conductive parts
[0063] 302 High-Frequency Electrosurgical Unit
[0064] 303 side exit line
[0065] 4 First non-inductive resistor
[0066] 5. High-frequency oscilloscope
[0067] 6 Neutral electrodes
[0068] 7 metal foil
[0069] 8 Second non-inductive resistor
[0070] 9. Pliers and pipes
[0071] 10 Pipe fittings
[0072] 11 Suction tube
[0073] 12 Insertion tube
[0074] 13. Outer shell
[0075] 131 Pliers
[0076] 1311 Stopper
[0077] 1312 plug connector
[0078] 132 Suction Port
[0079] 14 Insulation components
[0080] 141 Insulating rubber sheet
[0081] 142 Insulating Ring
[0082] 144 Insulation Fixing Plate
[0083] 146 Silicone Sealing Gasket
[0084] 147 Insulating spacer
[0085] 15 Metal connectors Detailed Implementation
[0086] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only some embodiments of this application, not all embodiments. The components of the embodiments of this application described in the accompanying drawings can generally be arranged and designed in various different configurations.
[0087] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0088] In the description of this application, it should be noted that:
[0089] Relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations;
[0090] "Connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium.
[0091] Because endoscopes contain metallic materials in their casings and other parts, they can form capacitance with other components. This is especially true when using high-frequency electrosurgical units, where the electrosurgical unit and the conductive metallic parts of the endoscope can create capacitance, easily generating high-frequency leakage current. This leakage current may burn the patient or pollute the environment.
[0092] In order to suppress the high-frequency leakage current generated by the endoscope, this application provides an endoscope having a structure for suppressing high-frequency leakage current.
[0093] See also Figure 2 The endoscope includes a housing 13. Figure 2 The right side of the outer shell 13 is the insertion tube 12. One end of the insertion tube 12 is connected to the outer shell 13, and the end of the insertion tube 12 away from the outer shell 13 can be used to enter the human body cavity.
[0094] The outer casing 13 is provided with a clamping port 131 and a suction port 132.
[0095] A plug can be installed at the forceps opening 131. Opening the plug allows instruments such as a high-frequency electrosurgical unit to be inserted into the forceps opening 131. The high-frequency electrosurgical unit and other instruments extend from the end of the insertion tube 12 away from the outer shell 13, thereby enabling surgical treatment and other operations.
[0096] The suction port 132 can be connected to a suction pump, which can draw out body fluids through the suction port 132.
[0097] refer to Figure 3 , Figure 3 A portion of the housing 13 is concealed to reveal some of the internal structures. The endoscope also includes a forceps tube 9, a tube connector 10, a suction tube 11, and an insulation assembly 14. The forceps tube 9, the tube connector 10, the suction tube 11, and the insulation assembly 14 are disposed within the housing 13.
[0098] The pipe connector 10 connects three pipes: the clamp pipe 9, the suction pipe 11, and the insertion pipe 12. Therefore, the pipe connector 10 can be a tee fitting. The clamp pipe 9 is connected to the first port of the pipe connector 10, and the second port of the pipe connector 10 is connected to the suction pipe 11. Figure 3 The section of the suction tube 11 connected to the second port of the pipe connector 10 is not shown (a section of the suction tube 11 is shown to show the insulation assembly 14). The third port of the pipe connector 10 is connected to the insertion tube 12. If other pipes need to be connected, the pipe connector 10 can also be a four-way fitting, etc.
[0099] The insulating component 14 can be positioned in various ways, and the insulating component 14 is located in at least one of the following positions: between the clamp tube 9 and the housing 13, between the suction tube 11 and the housing 13, and between the pipe connector 10 and the housing 13.
[0100] Figure 3 In this configuration, the insulating component 14 is an insulating rubber sheet. The insulating rubber sheet can be positioned in several ways: it can be positioned solely between the clamping tube 9 and the outer casing 13; it can be positioned solely between the suction tube 11 and the outer casing 13; it can be positioned solely between the pipe connector 10 and the outer casing 13; it can be positioned between both the clamping tube 9 and the outer casing 13 and between the suction tube 11 and the outer casing 13; it can be positioned between both the clamping tube 9 and the outer casing 13 and between the pipe connector 10 and the outer casing 13; it can be positioned between both the suction tube 11 and the outer casing 13 and between the pipe connector 10 and the outer casing 13; it can be positioned between the clamping tube 9 and the outer casing 13, between the suction tube 11 and the outer casing 13, and between the pipe connector 10 and the outer casing 13.
[0101] The insulating sheet can be a flat sheet, a curved sheet, or a flat sheet bent at an angle. Example Figure 3In this context, the insulating rubber sheet is a flat plate bent at a 90° angle. At this angle, an insulating rubber sheet can block leakage current generated by the pipe connector 10 and other objects on both sides.
[0102] Insulating rubber sheets, also known as rubber plates, are sheet-like products with a certain thickness and large area, made primarily of rubber (which may contain reinforcing materials such as fabric or thin metal sheets) through vulcanization. Using rubber sheets, a mature technology for insulating components, is cost-effective and helps improve production efficiency.
[0103] refer to Figure 4 , Figure 4 Hidden Figure 3 The plug 1311 and plug connector 1312 are shown to illustrate the clamp tube 9. The insulation assembly 14 may include an insulating ring 142 that is fitted onto the clamp tube 9.
[0104] The insulating ring 142 can be made of plastic or rubber. The insulating ring 142 can improve the insulation performance between the clamp tube 9 and other objects, and can also improve the insulation performance between objects inside and outside the clamp tube 9 and other objects.
[0105] The insulating ring 142 can cover a critical section of the clamping tube 9, or it can cover the entire middle section of the clamping tube 9 except for both ends. Multiple insulating rings can also be used to cover different sections of the clamping tube 9.
[0106] like Figure 4 The insulating ring 142 can be fitted onto the first position of the clamp tube 9, and the distance between the first position and the clamp opening is less than the distance between the first position and the pipe connector 10. The insulating ring 142 at the first position can effectively prevent leakage current between the outer shell 13 and the clamp tube 9, and does not require covering a long section of the clamp tube 9, thus not occupying a large volume.
[0107] refer to Figure 5 , Figure 5 An embodiment of the clamp tube 9 and the pipe connector 10 is shown. The insulating component 14 may also include a silicone gasket 146, which is located between the clamp tube 9 and the pipe connector 10 and provides an isolation effect between the clamp tube 9 and the pipe connector 10.
[0108] refer to Figure 6 The insulation assembly 14 may also include an insulation fixing plate 144, through which the pipe connector 10 is fixedly connected to the housing 13. Figure 6 The pipe connector 10 and the insulating rubber sheet 141 can be fixed together to the insulating fixing plate 144 by two screws.
[0109] The insulating fixing plate 144 can fix parts such as pipe connector 10. Fixing the pipe connector 10 can stabilize the position of the clamp tube 9 and suction tube 11, and can suppress leakage current crosstalk caused by displacement or vibration of parts such as pipe connector 10, clamp tube 9 and suction tube 11.
[0110] refer to Figure 7 , Figure 7 Part of the outer casing 13 is concealed to reveal a portion of the structure of the suction tube 11 at the suction port 132, as shown below. Figure 7 At least a portion of the suction tube 11 is suspended in the air, which allows for increased insulation around the suction tube 11. One end of the suction tube 11 is connected to the suction port 132, and the other end is connected to the pipe connector 10. Except for the middle section at both ends, the suction tube 11 can be suspended in the air.
[0111] The insulation assembly 14 may also include a first insulating sleeve; the first insulating sleeve is fitted over the suction tube 11. The first insulating sleeve can further isolate leakage current between the suction tube 11 and external parts, or leakage current between an object inside the suction tube 11 and external parts.
[0112] like Figure 7 A metal connector 15 can be provided inside the outer casing 13. The metal connector 15 can be a screw, stud, etc. The metal connector 15 is used to install the internal parts to the outer casing 13, and plays the role of fixing the handle cover, connecting the handle metal bracket and the ball head metal plate for static electricity conduction.
[0113] The insulating component 14 may include a second insulating sleeve that is fitted onto the metal connector 15 and can suppress high-frequency leakage current generated by capacitance between the metal connector 15 and other objects.
[0114] like Figure 7 The insulating component 14 may include an insulating spacer 147. The insulating spacer 147 may have holes corresponding to the positions of the three metal connectors 15, so as to be fixed by the metal connectors 15. The insulating spacer 147 may be placed between the suction tube 11 and other parts (other parts such as the handle metal bracket, the base metal chassis, etc.) to suppress the high-frequency leakage current generated by the capacitance between the suction tube 11 and other parts.
[0115] Based on the above embodiments, this application also provides an endoscope system, which includes a high-frequency electrosurgical unit and the endoscope described above. The high-frequency electrosurgical unit can enter from the forceps tube 9 and extend from the insertion tube 12.
[0116] In summary, this application proposes an endoscope and an endoscope system. Without altering the original structure, size, and materials of the endoscope's forceps tube and suction tube, insulating components can be installed at appropriate locations, enhancing the endoscope's insulation, suppressing high-frequency leakage current caused by high-frequency electrosurgical procedures, and reducing implementation costs.
[0117] The apparatus and system embodiments described above are merely illustrative. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement these embodiments without any creative effort.
[0118] The above are merely preferred embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. An endoscope, characterized in that, Includes pipe fittings, pipe connectors, suction tubes, insertion tubes, housings, and insulation components; The clamp tube, the pipe connector, the suction tube, and the insulation assembly are disposed within the housing; The clamp tube is connected to the first port of the pipe connector, the second port of the pipe connector is connected to the suction tube, and the third port of the pipe connector is connected to the insertion tube. The insulating component is located in at least one of the following locations: Between the clamp tube and the outer shell, between the suction tube and the outer shell, and between the pipe connector and the outer shell.
2. The endoscope as described in claim 1, characterized in that, The insulating component includes an insulating rubber sheet.
3. The endoscope as described in claim 1, characterized in that, The insulating component includes an insulating ring; The insulating ring is fitted onto the clamp tube.
4. The endoscope as described in claim 3, characterized in that, The end of the clamp tube away from the pipe connector is connected to the clamp opening. The insulating ring is sleeved on the clamp tube at a first position. The distance between the first position and the clamp opening is less than the distance between the first position and the pipe connector.
5. The endoscope as described in claim 1, characterized in that, At least a portion of the suction tube is suspended in the air; The insulating component includes a first insulating sleeve; the first insulating sleeve is fitted onto the suction tube.
6. The endoscope as described in claim 1, characterized in that, The insulating assembly includes an insulating fixing plate; The pipe connector is fixedly connected to the outer casing via the insulating fixing plate.
7. The endoscope as described in claim 1, characterized in that, The insulating component includes a second insulating sleeve; The endoscope also includes a metal connector and internal parts, the metal connector being used to install the internal parts to the housing; the second insulating sleeve is fitted onto the metal connector.
8. The endoscope as described in claim 1, characterized in that, The insulating component includes a silicone sealing gasket; The silicone sealing gasket is located between the ferrule and the pipe connector.
9. The endoscope as described in claim 1, characterized in that, The insulating assembly includes an insulating rubber sheet, an insulating ring, a first insulating sleeve, a second insulating sleeve, an insulating fixing plate, a silicone sealing gasket, metal connectors, and internal parts. The insulating rubber sheet is located between the clamp tube and the outer shell, between the suction tube and the outer shell, and between the pipe connector and the outer shell; The insulating ring is sleeved on the clamp tube; At least a portion of the suction tube is suspended in the air; the first insulating sleeve is fitted over the suction tube; The pipe connector is fixedly connected to the outer casing via the insulating fixing plate; The metal connector is used to install the internal parts to the housing; the second insulating sleeve is fitted onto the metal connector; The silicone sealing gasket is located between the ferrule and the pipe connector; The pipe connector is a tee fitting.
10. An endoscope system, characterized in that, The endoscope system includes a high-frequency electrosurgical unit and an endoscope as described in any one of claims 1 to 9, wherein the high-frequency electrosurgical unit is used to enter through the forceps cannula and extend from the insertion tube.