A signal access device and an endoscope system

Abstract

This utility model relates to a signal access device and an endoscope system. The signal access device includes a host interface mounted on the endoscope main unit and a connector for connecting to an operating handle. The connector includes a housing and a connection port on the housing. The connector also has a locking structure for locking the connection between the connector and the host interface. The locking structure includes a latch on the housing and a latch on the outer wall of the connection port. A locking groove is provided on the inner wall of the host interface at a position corresponding to the locking part of the latch. This utility model's signal access device not only has a simple structure and lower manufacturing cost, but also better waterproofing and sealing performance.

Description

Technical Field

[0001] This utility model relates to an endoscope device, specifically to a signal access device and an endoscope system. Background Technology

[0002] An endoscope host device provides illumination for the endoscope and processes and displays acquired images. The endoscope connects to the endoscope host device via a cable, which has a connector, and the endoscope host device has a corresponding connector socket. Signal transmission between the endoscope and the endoscope host device is achieved by inserting the connector into the connector socket. To this end, patent application CN110119025A discloses a "transmission connector, transmission socket, and endoscope transmission assembly." The transmission connector includes a housing assembly with a first inner cavity, a photoelectric conversion assembly, an electrical signal connection terminal, and a shielding assembly. The photoelectric conversion assembly is disposed within the first inner cavity and is used to connect to the proximal end of an optical fiber to convert the optical signal transmitted by the optical fiber into an electrical signal, which is then transmitted to the outside through the electrical signal connection terminal. The shielding assembly provides electromagnetic shielding and heat dissipation for the photoelectric conversion assembly. This configuration ensures that the conversion between optical and electrical signals is completed inside the housing assembly, avoiding the need to plug and unplug the optical fiber connector, which could lead to contamination of the connector and affect image quality. It retains the fiber optic signal transmission capability, allowing for a smaller insertion diameter, while also employing electrical signal connection terminals for external electrical signal output, thus improving reliability. Furthermore, the transmission connector eliminates the need for potting encapsulation, enhancing maintainability and reducing operating costs.

[0003] However, after the aforementioned transmission connector is inserted into the transmission socket of the endoscope host device, only signal transmission can be achieved. Since the water pipe, sewage pipe and air pipe in the endoscope are independent of each other, additional wiring is required to connect them to other devices, which makes the wiring structure particularly complex.

[0004] To this end, a utility model patent with authorization announcement number CN 220475009U discloses "a signal access device for an endoscope host". The signal access device includes a host end interface on the endoscope host and a connector for connecting to the endoscope. The connector includes a housing and a connection port on the housing. The connection port includes a signal connection end, a water connection end, a vent connection end, a suction connection end, and a water injection connection end. When the connector is installed on the host end interface, the signal connection end engages with the signal interface on the host end interface. With the above configuration, before installing the connector on the host end interface, the inlet and outlet of the water connection end, vent connection end, suction connection end, and water injection connection end on the connector can be connected to the corresponding pipes first, and then the connector can be installed on the host end interface to achieve the engagement of the signal connection end with the signal interface on the host end interface. This makes the entire installation process particularly simple and quick, and the circuit structure is also more concise.

[0005] However, the above-mentioned signal access device has the following drawbacks:

[0006] The aforementioned signal access device also includes a locking structure on the connector for locking the connection between the connector and the host interface. The locking structure includes a latch hinged to the housing and a pressing member for driving the latch to rotate. The latch includes a locking part, a rotating part, and a pressing part. The rotating part is located between the locking part and the pressing part. The rotating part is hinged to the housing. The locking part extends beyond the exterior of the housing. The housing has a clearance groove for avoiding the locking part. The host interface has a corresponding position to the locking part. The connector has a locking groove; the pressing element is used to move the pressing part downwards, causing the locking part to disengage from the locking groove; when the connector is installed on the host interface, the locking part enters the locking groove, locking the connection between the connector and the host interface; when the connector needs to be removed, the pressing element simply moves the pressing part downwards, causing the latch to rotate around the axis in the opposite direction to the pressing direction, thus disengaging the locking part from the locking groove, and then the connector can be pulled out. However, the above structure makes the connector structure particularly complex, which not only increases manufacturing costs but also reduces the connector's waterproof performance. Utility Model Content

[0007] The present invention aims to overcome the shortcomings of the prior art and provide a signal access device that is not only simple in structure and lower in manufacturing cost, but also has better waterproof performance.

[0008] The second objective of this invention is to disclose an endoscope system that uses the aforementioned signal access device.

[0009] The technical solution of this utility model to solve the problem of the prior art is:

[0010] A signal access device includes a host interface mounted on an endoscope host and a connector connected to an operating handle. The connector includes a housing and a connection port on the housing. The connector also has a locking structure for locking the connection between the connector and the host interface. The locking structure includes a latch on the housing and the latch on the outer wall of the connection port. A locking groove is provided on the inner wall of the host interface at a position corresponding to the locking part of the latch.

[0011] Preferably, multiple sets of guide structures are provided between the connection port and the host interface. The guide structure includes a guide groove on the outer wall of the connection port and a guide rib on the inner wall of the host interface that cooperates with the guide groove.

[0012] Preferably, a signal connector is provided at the center of the connection port; a signal interface is provided at the corresponding position of the signal connector on the host interface; when the connection connector is installed on the host interface, the signal connector mates with the signal interface on the host interface.

[0013] Preferably, the outer casing is further provided with a water connection end, an air connection end, a sewage suction connection end, and a water injection connection end.

[0014] An endoscope system includes an endoscope main unit and an operation execution device connected to the endoscope main unit, wherein...

[0015] The operating device includes an operating handle, an insertion tube, a snake skeleton, and a tip. An insertion tube adapter is provided between the insertion tube and the snake skeleton; a tip adapter is provided between the tip and the snake skeleton. The insertion tube adapter includes a first connecting tube, one end of which is connected to the snake skeleton, and the other end of which is connected to the insertion tube. A first positioning structure is provided between the insertion tube adapter and the snake skeleton. The tip adapter includes a second connecting tube, one end of which is connected to the snake skeleton, and the other end of which is connected to the tip.

[0016] The endoscope main unit and the operating handle are connected via the signal access device.

[0017] Preferably, the endoscope host includes a host and a display touch screen disposed on the host, wherein the display touch screen is mounted on the housing of the host via a rotating connection device.

[0018] Preferably, the first connecting tube is a stepped shaft structure, wherein the end with the smaller diameter in the first connecting tube is a snake-bone connecting end, which is connected to the snake bone; the end with the larger diameter in the first connecting tube is an insertion tube connecting end, which is connected to the insertion tube.

[0019] Preferably, the first positioning structure includes multiple sets of first positioning grooves arranged in a circular pattern on the snake bone connecting end; the first positioning grooves extend axially; and the snake bone is provided with a first positioning part that cooperates with the first positioning groove.

[0020] Preferably, the operating handle includes a housing, a pulley assembly mounted on the housing, a rotating device for driving the pulleys in the pulley assembly to rotate, and a braking device for braking the rotating device. The pulleys are in two sets, each set having a pull groove. A steel wire rope is installed in the pull groove, with both ends of the steel wire rope entering corresponding wire rope holes in the snake-like structure.

[0021] Preferably, a spring tube mounting seat is provided inside the housing, and the spring tube mounting seat is installed inside the housing. The spring tube mounting seat is provided with multiple metal tubes and multiple spring tubes. The spring tube fixing seat is provided with multiple sets of through holes, and the multiple sets of through holes all penetrate the spring tube fixing seat. The multiple sets of spring tubes all pass through the corresponding through holes. The metal tube is sleeved on the outside of the spring tube, and the end of the metal tube away from the through hole is welded to the spring tube. The lower end of the wire rope enters the corresponding spring tube and extends along the extension direction of the spring tube. The outer diameter of the metal tube is larger than the inner diameter of the through hole.

[0022] Compared with the prior art, this utility model has the following advantages:

[0023] The connector in the signal access device of this invention features a latch that engages with a locking groove in the host interface of the endoscope host, allowing the connector to be installed within the host interface. Since the outer surface of the connector lacks any unlocking mechanism, external force is required to disassemble the latch from the locking groove. This structure simplifies the connector's design, thereby reducing the manufacturing cost of the signal access device. Furthermore, because the outer surface of the connector lacks any unlocking mechanism, internal moisture will not leak from the gap between the unlocking mechanism and the outer shell, ensuring the connector's airtightness. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the connection connector in the signal access device of this utility model.

[0025] Figure 2 This is a schematic diagram of the host interface in the signal access device of this utility model.

[0026] Figure 3 This is a schematic diagram of the endoscope system.

[0027] Figure 4 This is a three-dimensional structural diagram of the operating actuator.

[0028] Figure 5 This is a cross-sectional view of the operating handle.

[0029] Figure 6 A perspective view of the Bourdon tube mounting bracket.

[0030] Figures 7-9 These are structural schematic diagrams of the insertion tube adapter from three different perspectives.

[0031] Figures 10-11 These are structural schematic diagrams of the front-end adapter from two different perspectives.

[0032] Figures 12-13 This is a schematic diagram of the structure from two different perspectives of the tip.

[0033] Figure 14 This is a schematic diagram of the snake skeleton. Detailed Implementation

[0034] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of the present invention is not limited thereto.

[0035] Example 1

[0036] See Figures 1-2The signal access device of this utility model includes a host interface 7 disposed on an endoscope host 8 and a connecting connector 6 connected to an operating handle 1. The connecting connector 6 includes a housing 601 and a connecting port 602 disposed on the housing 601. The connecting connector 6 is also provided with a locking structure for locking the connection between the connecting connector 6 and the host interface 7. The locking structure includes a latch 603 disposed on the housing 601. The latch 603 is disposed on the outer wall of the connecting port 602. A locking groove 701 is provided on the inner wall of the host interface 7 at a position corresponding to the locking part of the latch 603. By inserting the connecting connector 6 into the host interface 7, the locking part of the latch 603 engages with the locking groove 701 on the inner wall of the host interface 7, thereby fixing the connecting connector 6.

[0037] In addition, to ensure installation accuracy, multiple sets of guide structures are provided between the connection port 602 and the host interface 7. The guide structure includes a guide groove 604 on the outer wall of the connection port 602 and a guide rib 702 on the inner wall of the host interface 7 that cooperates with the guide groove 604. By providing the guide structure, the connection connector 6 can be guided so that the latch 603 on the connection connector 6 cooperates with the locking groove 701 on the host interface 7.

[0038] See Figures 1-2 A signal connector is provided at the center of the connection port 602; a signal interface is provided at the corresponding position of the signal connector on the host interface 7; when the connection connector 6 is installed on the host interface 7, the signal connector cooperates with the signal interface on the host interface 7.

[0039] See Figures 1-2 The outer casing 601 is also provided with a water connection end, an air connection end, a sewage suction connection end and a water injection connection end.

[0040] Example 2

[0041] See Figures 3-14The endoscope system of this utility model includes an endoscope host 8 and an operation execution device connected to the endoscope host 8. The operation execution device includes an operating handle 1, an insertion tube, a snake bone 5, and a tip 4. An insertion tube adapter 2 is provided between the insertion tube and the snake bone 5. A tip adapter 3 is provided between the tip 4 and the snake bone 5. The insertion tube adapter 2 includes a first connecting tube, one end of which is connected to the snake bone 5, and the other end is connected to the insertion tube. A first positioning structure is provided between the insertion tube adapter 2 and the snake bone 5. The tip adapter 3 includes a second connecting tube, one end of which is connected to the snake bone 5, and the other end is connected to the tip 4. The endoscope host 8 and the operating handle 1 are connected through the signal access device described in Embodiment 1.

[0042] See Figures 3-14 The endoscope host 8 includes a host and a display touch screen 9 disposed on the host. The display touch screen 9 is mounted on the housing of the host via a rotating connection device. In this embodiment, the specific structure of the endoscope host 8 can be implemented with reference to the "An Endoscope Host" disclosed in the utility model patent with authorization announcement number CN 221635700U.

[0043] See Figures 3-14 The first connecting tube has a stepped shaft structure, wherein the smaller diameter end of the first connecting tube is the snake bone connecting end, which is connected to the snake bone 5; the larger diameter end of the first connecting tube is the insertion tube connecting end, which is connected to the insertion tube.

[0044] See Figures 3-14 The first positioning structure includes multiple sets of first positioning grooves 201 arranged in a circle on the snake bone connecting end; the first positioning grooves 201 extend axially; the snake bone 5 is provided with a first positioning part that cooperates with the first positioning grooves 201; during installation, the multiple sets of first positioning grooves 201 on the snake bone connecting end cooperate with the multiple sets of first positioning parts on the snake bone 5, thereby realizing the positioning between the snake bone 5 and the insertion tube adapter 2;

[0045] In this embodiment, the snake bone 5 and the insertion tube adapter 2 can be bonded together with adhesive or connected by snap-fit; the insertion tube and the insertion tube adapter 2 can be bonded together with adhesive or connected by snap-fit.

[0046] See Figures 3-14The snake bone connecting end is provided with four sets of wire rope threading holes 202, which are arranged in a circle. Each set of wire rope threading holes 202 is located between two adjacent first positioning grooves 201. By providing four sets of wire rope threading holes 202, the wire rope 106 can pass through, so that the operating handle 1 can control the bending direction of the snake bone 5.

[0047] See Figures 3-14 The second connecting tube is a stepped shaft structure, wherein the end with the larger diameter in the second connecting tube is the tip connection end; the tip connection end is connected to the tip 4; the end with the smaller diameter in the second connecting tube is the snake bone connection end, and the snake bone connection end is connected to the snake bone 5.

[0048] In this embodiment, the snake bone 5 and the tip adapter 3 can be bonded together with adhesive or connected by snap-fit; the tip 4 and the tip adapter 3 can be bonded together with adhesive or connected by snap-fit.

[0049] See Figures 3-14 A second positioning structure is provided between the tip adapter 3 and the tip 4; the second positioning structure includes a second positioning part 301 provided at the tip connection end, and a second positioning groove 401 provided on the tip 4 that cooperates with the second positioning part 301; during installation, the second positioning part 301 at the tip connection end is engaged with the second positioning part 301 on the tip 4, thereby realizing the positioning between the tip 4 and the tip adapter 3.

[0050] See Figures 3-14 The tip 4 is provided with a water nozzle 404, a water / air nozzle 406, a lens mounting hole 403, a light source mounting hole 402, and an instrument channel 405. The light source mounting holes 402 are in two sets, symmetrically arranged on both sides of the lens mounting hole 403. The water / air nozzle 406 is curved to ensure sufficient installation space for the internal water and air pipes, and to ensure that the water volume and air pressure are within the parameter range. It also constrains the water or air flow, allowing it to be sprayed precisely horizontally or downwards onto the lens. The outlet of the water / air nozzle 406 faces the lens mounting hole 403.

[0051] In this embodiment, an LED light is installed in the light source mounting hole 402, and a camera is installed in the lens mounting hole 403; both the LED light and the camera are waterproof.

[0052] See Figures 3-14The operating handle 1 includes a housing 101, a pull-wire wheel assembly mounted on the housing 101, a rotating device for driving the pull-wire wheels in the pull-wire wheel assembly to rotate, and a braking device for braking the rotating device. The pull-wire wheels are in two sets, each set having a pull-wire groove. A steel wire rope 106 is installed in the pull-wire groove, with both ends of the steel wire rope 106 entering the corresponding steel wire rope threading holes 202 in the snake-like structure 5.

[0053] In this embodiment, the specific structure of the pull wheel assembly, rotating device, and braking device can be implemented with reference to existing patents, such as the specific structure of the pull wheel assembly, rotating device, and braking device in the endoscope operating handle disclosed in the utility model patent with authorization announcement number CN222722982U, "An Endoscope Water-Air Switching Valve and Endoscope Operating Handle".

[0054] See Figures 3-14 The housing 101 contains a spring tube mounting base 105, which is installed within the housing 101. The spring tube mounting base 105 has multiple metal tubes 109 and multiple spring tubes 107. The spring tube 107 mounting base has multiple sets of through holes, all of which penetrate the spring tube 107 mounting base. Each set of spring tubes 107 passes through a corresponding through hole. A metal tube 109 is fitted over the outside of each spring tube 107, and the outer diameter of the metal tube 109 is larger than the inner diameter of the through hole. Furthermore, the end of the metal tube 109 furthest from the through hole is connected to the spring tube. The tube 107 is welded; welding makes the connection between the spring tube 107 and the metal tube 109 more secure; in addition, before welding, inserting a ceramic rod can prevent the tin from hardening after cooling and damaging the steel wire rope 106, thus ensuring the smoothness of the inner wall of the spring tube 107. After welding, the ceramic rod is pulled out; the lower end of the steel wire rope 106 enters the corresponding spring tube 107 and extends along the extension direction of the spring tube 107; by setting the spring tube mounting seat 105, the four spring tubes 107 can have their own tracks to prevent the spring tubes 107 from rubbing against each other and causing damage.

[0055] In this embodiment, the number of spring tubes 107, metal tubes 109, and through holes are all the same.

[0056] See Figures 3-14The housing 101 also includes a water-air connector valve 104, a liquid suction button 103, a clamp tee tube 108, and multiple function buttons 102; the above structures can be implemented with reference to existing devices. The above is a preferred embodiment of the present invention, but the embodiments of the present invention are not limited to the above content. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present invention should be considered equivalent substitutions and are included within the protection scope of the present invention.

Claims

1. A signal access device, characterized in that, The device includes a host interface mounted on an endoscope host and a connector for connecting to the endoscope. The connector includes a housing and a connection port on the housing. The connector also has a locking structure for locking the connection between the connector and the host interface. The locking structure includes a latch on the housing and the latch on the outer wall of the connection port. The inner wall of the host interface has a locking groove at a position corresponding to the locking part of the latch.

2. The signal access device according to claim 1, characterized in that, Multiple sets of guide structures are provided between the connection port and the host interface. The guide structure includes a guide groove on the outer wall of the connection port and a guide rib on the inner wall of the host interface that cooperates with the guide groove.

3. The signal access device according to claim 2, characterized in that, A signal connector is provided at the center of the connection port; a signal interface is provided at the corresponding position of the signal connector on the host interface; when the connection connector is installed on the host interface, the signal connector mates with the signal interface on the host interface.

4. The signal access device according to claim 1, characterized in that, The outer casing is also provided with a water connection end, an air connection end, a sewage suction connection end, and a water injection connection end.

5. An endoscope system, characterized in that, It includes an endoscope main unit and an operation execution device connected to the endoscope main unit, wherein, The operating device includes an operating handle, an insertion tube, a snake skeleton, and a tip. An insertion tube adapter is provided between the insertion tube and the snake skeleton; a tip adapter is provided between the tip and the snake skeleton. The insertion tube adapter includes a first connecting tube, one end of which is connected to the snake skeleton, and the other end of which is connected to the insertion tube. A first positioning structure is provided between the insertion tube adapter and the snake skeleton. The tip adapter includes a second connecting tube, one end of which is connected to the snake skeleton, and the other end of which is connected to the tip. The endoscope main unit and the operating handle are connected by the signal access device according to any one of claims 1-4.

6. The endoscope system according to claim 5, characterized in that, The endoscope host includes a host and a display touch screen mounted on the host, wherein the display touch screen is mounted on the housing of the host via a rotating connection device.

7. The endoscope system according to claim 5, characterized in that, The first connecting tube has a stepped shaft structure, wherein the smaller diameter end of the first connecting tube is the snake bone connecting end, which is connected to the snake bone; the larger diameter end of the first connecting tube is the insertion tube connecting end, which is connected to the insertion tube.

8. The endoscope system according to claim 6, characterized in that, The first positioning structure includes multiple sets of first positioning grooves arranged in a circle on the connecting end of the snake bone; the first positioning grooves extend axially; and the snake bone is provided with a first positioning part that cooperates with the first positioning groove.

9. The endoscope system according to claim 6, characterized in that, The operating handle includes a housing, a pulley assembly mounted on the housing, a rotating device for driving the pulleys in the pulley assembly to rotate, and a braking device for braking the rotating device. The pulleys are in two sets, each set having a pull groove. A steel wire rope is installed in the pull groove, with both ends of the steel wire rope entering corresponding wire rope holes in the snake bone.

10. The endoscope system according to claim 9, characterized in that, A spring tube mounting base is provided inside the housing, and the spring tube mounting base is installed inside the housing. The spring tube mounting base is provided with multiple metal tubes and multiple spring tubes. The spring tube fixing base is provided with multiple sets of through holes, and the multiple sets of through holes all penetrate the spring tube fixing base. The multiple sets of spring tubes all pass through the corresponding through holes. The metal tube is sleeved on the outside of the spring tube, and the end of the metal tube away from the through hole is welded to the spring tube. The lower end of the steel wire rope enters the corresponding spring tube and extends along the extension direction of the spring tube. The outer diameter of the metal tube is larger than the inner diameter of the through hole.

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