Endoscope system having multiple connection interfaces connected to different video data signal sources

Abstract

An endoscope is described having a tip portion having a viewing element coupled to a CMOS image sensor and / or a CCD image sensor for converting light captured by the viewing element into digital and / or analog signals. A main connector is coupled to the tip portion for transmitting the signals to a main control unit of the endoscope. The main connector includes a pad for transmitting digital signals provided by the CMOS image sensor to a push-pin probe in a receptacle of the main control unit. The main connector also includes another interface for transmitting analog signals to the main control unit.

Description

[0001] This application is a divisional application of Chinese application with application number 201780038572.0, filed on May 23, 2017, and titled "Endoscope system with multiple connection interfaces connected to different video data signal sources."

[0002] Cross Reference To

[0003] This specification is dependent on U.S. Provisional Application No. 62 / 352,898, filed on June 21, 2016, titled "Control unit and connector for detecting and connecting different types of endoscopes."

[0004] As to priority, this application is related to U.S. Patent Application No. 14 / 468,189, filed on August 26, 2014, titled "System of master connector and master control unit for connecting and disconnecting endoscopes," assigned U.S. Patent Publication No. 20150057500, which in turn is dependent on U.S. Provisional Application No. 61 / 870,144, filed on August 26, 2013, and U.S. Provisional Application No. 61 / 968,436, filed on March 21, 2014, both with the same title.

[0005] The entire contents of the above-listed applications are incorporated herein by reference. TECHNICAL FIELD

[0006] This specification relates generally to endoscopes, and more particularly to a master control unit for detecting and responding to different types of image sensors located within an endoscope. BACKGROUND

[0007] Endoscopes have gained high recognition in the medical community because they provide a way to perform surgery with minimal patient trauma and at the same time enable a physician to view the internal anatomy of a patient. Over the years, many endoscopes have been developed and categorized according to specific applications, such as cystoscopy, colonoscopy, laparoscopy, upper gastrointestinal (GI) endoscopy, etc. Endoscopes can be inserted into a natural orifice of the human body or through an incision in the skin.

[0008] Some endoscopes have a viewing element for viewing internal organs, such as the colon, and an illuminator for illuminating the field of view of the viewing element. The viewing element and the illuminator are located in the tip of the endoscope and are used to capture images of the internal walls of the body cavity being scanned by the endoscope. The captured images are sent through one of the channels present in the scope shaft to a control unit coupled to the endoscope for display on a screen coupled to the control unit. During an endoscopic procedure, the operating physician guides the endoscope within the patient's body by using the captured images displayed on the screen coupled to the control unit as a guide.

[0009] Endoscopes capture images of internal organs by means of one or more viewing elements, such as a camera placed in the tip portion. Each viewing element is coupled to an image sensor to convert the light captured by the viewing element into at least one image. The image sensor can be a charge-coupled device (CCD) or a complementary metal-oxide semiconductor (CMOS) image sensor, or other suitable device having a light-sensitive surface that can be used to capture images. Signals, such as analog or digital signals generated by the image sensor, are transmitted through the main connector of the endoscope to a main control unit for display on a screen coupled to the main control unit. CCD-based endoscopes are equipped with a main connector having a push / pull electrical connector, such as connectors, which are well known in the art. The connector is fitted to a corresponding connector interface provided on the main control unit of the endoscope to transmit analog image signals with a bandwidth of 1 / 3 GHz. However, CMOS image sensors generate digital image / video signals having a bandwidth of 1.5 GHz or higher order, which is very high compared to the signals generated by CCD image sensors, and thus cannot be transmitted via the standard interface.

[0010] Therefore, there is a need for a main control unit interface and / or adapter that can support both CCD and CMOS-based main connector fittings in an endoscope.

[0011] There is also a need for a high-speed transmission interface that preserves the integrity of the signals and does not cause signal distortion that can be possible with CMOS-based endoscopes. SUMMARY

[0012] The present specification discloses an endoscope system comprising: an endoscope comprising a tip portion having at least one viewing element; a main connector coupled to the tip portion and configured to receive and transmit a first set of video data signals originating from the at least one viewing element, wherein the main connector comprises at least one pad; and a control unit comprising a receptacle located on an outer surface of the control unit and configured to receive the main connector, wherein the receptacle has a first area, wherein the first area comprises at least one probe, wherein the at least one probe comprises a spring-loaded needle, and wherein upon attachment of the main connector to the receptacle, the at least one probe is compressed against the at least one pad.

[0013] Optionally, the at least one pad is planar and metallic.

[0014] Optionally, the first area comprises a light guide, a gas channel, and a second probe.

[0015] Optionally, the main connector includes a second pad, wherein after the main connector is attached to the receptacle, the second probe is pressed against the second pad such that the second probe is compressed.

[0016] Optionally, the receptacle further includes a second region and wherein the second region includes a multi-pin interface configured to receive a second set of video data signals, and wherein the second set of video data signals has a lower bandwidth than a bandwidth of the first set of video data signals.

[0017] Optionally, the first set of video data signals is generated by a CMOS sensor in the at least one viewing element and has a bandwidth greater than 1 GHz.

[0018] Optionally, the second set of video data signals is generated by a CCD sensor in the at least one viewing element and has a bandwidth less than 0.5 GHz.

[0019] Optionally, the first region includes a light guide, a gas channel, a second probe, and a third probe, wherein the at least one probe, the second probe, and the third probe are positioned circumferentially around at least one of the light guide and the gas channel, and wherein each of the second probe and the third probe includes a spring-loaded pin.

[0020] Optionally, the main connector includes a second pad and a third pad, and wherein after the main connector is attached to the receptacle, the second probe is pressed against the second pad such that the second probe is compressed, and the third probe is pressed against the third pad such that the third probe is compressed.

[0021] The present specification also discloses an endoscope system, comprising: an endoscope including a tip portion having a first viewing element and a second viewing element; a main connector coupled with the tip portion and configured to receive and transmit a first set of video data signals originating from the first viewing element and a second set of video data signals originating from the second viewing element, wherein the main connector includes a first pad in data communication with the first viewing element, and a second pad in data communication with the second viewing element; and a control unit including a receptacle on an outer surface of the control unit and configured to receive the main connector, wherein the receptacle has a first region, wherein the first region includes a first probe and a second probe, wherein each of the first probe and the second probe includes a spring-loaded pin, and wherein after the main connector is attached to the receptacle, the first probe is pressed against the first pad such that the first probe is compressed, and the second probe is pressed against the second pad such that the second probe is compressed.

[0022] Optionally, each of the first pad and the second pad is planar and metallic.

[0023] Optionally, the receptacle further comprises a second region and wherein the second region comprises a multi-pin interface configured to receive a third set of video data signals and the third set of video data signals has a lower bandwidth than a bandwidth of the first set of video data signals or a bandwidth of the second set of video data signals.

[0024] Optionally, the first set of video data signals is generated by a CMOS sensor and has a bandwidth greater than 1 GHz.

[0025] Optionally, the third set of video data signals is generated by a CCD sensor and has a bandwidth less than 0.5 GHz.

[0026] The present specification also discloses an endoscope control unit configured to attach to and be in data communication with an endoscope, the endoscope control unit comprising: a receptacle located on an outer surface of the control unit and configured to receive a main connector of the endoscope; a first region located within an exterior of the receptacle, wherein the first region comprises a first probe, wherein the first probe comprises a spring-loaded pin configured to receive a first set of video data signals having a first bandwidth; a second region located within the exterior of the receptacle and separate from the first region, wherein the second region comprises an interface configured to receive a second set of video data signals having a second bandwidth.

[0027] Optionally, the interface of the second region comprises a multi-pin interface configured to attach to a complementary multi-pin interface in the connector of the endoscope.

[0028] Optionally, the first probe is configured to compress after attaching the receptacle to the connector of the endoscope.

[0029] Optionally, the first set of video data signals comprises digital data having a bandwidth greater than 1 GHz.

[0030] Optionally, the second set of video data signals comprises digital data having a bandwidth less than 0.5 GHz.

[0031] Optionally, the first region further comprises a light guide, a gas channel, a second probe, and a third probe, wherein the first probe, the second probe, and the third probe are positioned circumferentially around at least one of the light guide and the gas channel, and wherein each of the second probe and the third probe comprises a spring-loaded pin.

[0032] The present specification also discloses an endoscope comprising: a tip portion comprising a plurality of viewing elements coupled with at least one CMOS image sensor for converting light captured by the viewing elements into a digital signal representing at least one image; and a main connector coupled with the tip portion for transmitting the digital signal to a main control unit of the endoscope, the main connector comprising: a plurality of pads for transmitting the digital signal to a plurality of probes provided on a main connector housing of the main control unit, the probes comprising spring-loaded tips that push against the pads during transmission of the digital signal.

[0033] Optionally, the viewing elements are cameras.

[0034] Optionally, the digital signal generated by the CMOS sensor is a high-speed signal having a bandwidth of 1.5 GHz.

[0035] Optionally, the number of pads provided on the main connector corresponds to the number of probes provided on the main connector housing.

[0036] Optionally, each pad is provided on the main connector in alignment with a corresponding probe on the main connector housing of the main control unit.

[0037] The present specification also discloses a main connector of an endoscope coupled with a tip portion comprising: a plurality of viewing elements coupled with at least one CMOS image sensor for converting light captured by the viewing elements into a digital signal representing at least one image, wherein the main connector comprises a plurality of pads for transmitting the digital signal to a plurality of probes provided on a main connector housing of the main control unit, and wherein the probes comprise spring-loaded tips that push against the pads during transmission of the digital signal.

[0038] The present specification also discloses a control unit for coupling with a main connector of an endoscope, the control unit comprising one or both of a CCD-based sensor and a CMOS-based sensor for converting light captured by one or more viewing elements of the endoscope into a signal representing at least one image, the control unit comprising a plurality of probes for receiving the signal from the endoscope via the main connector, the main connector comprising one or more pads for transmitting the signal, the probes comprising spring-loaded tips that push against the pads during transmission of the signal.

[0039] The present specification also discloses an endoscope comprising: a tip portion comprising a plurality of viewing elements coupled to at least one or both of a CMOS image sensor and a CCD image sensor for converting light captured by the viewing elements into digital and / or analog signals; and a main connector coupled to the tip portion for transmitting the signals to a main control unit of the endoscope, wherein the main connector comprises: a plurality of pads for transmitting digital signals provided by the CMOS image sensor to a plurality of probes provided on a main connector housing of the main control unit; and a connector for transmitting analog signals provided by the at least one image sensor having a bandwidth of less than 0.5 GHz via the main connector housing of the main control unit.

[0040] Optionally, the viewing elements are cameras.

[0041] Optionally, the digital signals generated by the CMOS sensor are high speed signals having a bandwidth of 1.5 GHz.

[0042] Optionally, the main connector comprises a plurality of pads for transmitting the digital signals to a plurality of probes provided on a main connector housing of the main control unit, the probes comprising spring loaded tips that push against the pads during transmission of the digital signals.

[0043] Optionally, the main connector comprises a plurality of pads for transmitting the digital signals to a plurality of twisted pair cables provided on a main connector housing of the main control unit.

[0044] Optionally, the number of pads provided on the main connector corresponds to the number of probes provided on the main connector housing.

[0045] Optionally, each pad is positioned on the main connector in alignment with a corresponding probe on the main connector housing of the main control unit.

[0046] The present specification also discloses an endoscope comprising: a tip portion comprising a plurality of viewing elements coupled to at least one image sensor for converting light captured by the viewing elements into signals, and a main connector coupled to the tip portion for transmitting the signals to a main control unit of the endoscope; the main connector comprising: a connector for transmitting analog signals provided by the at least one image sensor via a main connector housing of the main control unit, and at least one pad for transmitting digital signals provided by the at least one image sensor to at least one probe provided on the main connector housing of the main control unit.

[0047] Optionally, the at least one image sensor is a CMOS sensor. Still optionally, the at least one image sensor is a CCD sensor.

[0048] Optionally, the at least one probe is adapted to be connected to at least one connection means for transmitting digital signals provided by the CMOS image sensor. Still optionally, the connection means can be one of a spring loaded pogo pin probe, a coaxial probe or a twisted pair.

[0049] The present specification also discloses an endoscope comprising: a tip portion comprising at least one viewing element coupled to an image sensor for converting light captured by the at least one viewing element into a signal, and a main connector coupled to the tip portion for transmitting the signal to a main control unit of the endoscope, wherein the main connector comprises: a connector for transmitting analog signals provided by the image sensor via a main connector housing of the main control unit, and at least one pad for transmitting digital signals provided by the image sensor to at least one probe provided on the main connector housing of the main control unit.

[0050] Optionally, the at least one image sensor is a CMOS sensor. Still optionally, the at least one image sensor is a CCD sensor.

[0051] Optionally, the at least one probe is adapted to be connected to at least one connection means for transmitting digital signals provided by the CMOS image sensor. Still optionally, the connection means can be one of a spring loaded pogo pin probe, a coaxial probe or a twisted pair.

[0052] The present specification also discloses a control unit for coupling to a main connector of an endoscope, comprising one or both of a CCD-based sensor and a CMOS-based sensor for converting light captured by one or more viewing elements of the endoscope into a digital and / or analog signal representing at least one image, the control unit comprising a plurality of probes for receiving the digital and / or analog signal originating from the endoscope via the main connector, the main connector comprising one or more pads for transmitting the digital and / or analog signal, the probes comprising spring loaded tips for pushing against the pads during transmission of the digital and / or analog signal.

[0053] The above and other embodiments of the present specification will be more fully described in the following detailed description of the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0054] These and other characteristics and advantages of the present specification will become better understood with regard to the following detailed description of the drawings and specific embodiments, when considered in connection with the accompanying drawings, in which:

[0055] Figure 1A a semi-schematic view of a multi-camera endoscopy system according to some embodiments is shown;

[0056] Figure 1BFigure 1 shows a perspective view of one embodiment of a front panel of a main control unit of a multi-camera endoscopy system;

[0057] Figure 2A Figure 2 shows a system for connecting a main connector to a main control unit of an endoscope according to one embodiment of the present specification;

[0058] Figure 2B Figure 3 shows a main connector securely connected to a main control unit according to one embodiment of the present specification;

[0059] Figure 3 Figure 4 shows a main connector housing on a front panel of a main control unit of an endoscope;

[0060] Figure 4 Figure 5 shows a main connector of an endoscope;

[0061] Figure 5A Figure 6 shows a main connector housing / socket of a main control unit interchangeably compatible with a CCD-based endoscope and a CMOS-based endoscope according to one embodiment of the present specification;

[0062] Figure 5B Figure 7 shows a main connector housing / socket of a main control unit interchangeably compatible with a CCD-based endoscope and a CMOS-based endoscope according to one embodiment of the present specification;

[0063] Figure 5C Figure 8 is a diagram of a probe employed in a main connector housing according to one embodiment of the present specification;

[0064] Figure 6A Figure 9 is a diagram of a main connector of an endoscope comprising a CMOS sensor according to one embodiment of the present specification;

[0065] Figure 6B Figure 10 is a diagram of a main connector of an endoscope comprising a CMOS sensor according to one embodiment of the present specification;

[0066] Figure 7 It is detailed how the video controller or controller circuit board of the main controller of the endoscope is operatively connected with the endoscope and its display unit; and

[0067] Figure 8 Figure 11 is a flow chart showing a method of detecting and transmitting from an endoscope to a main control unit signals captured using a CCD or CMOS sensor coupled to a viewing element of the endoscope according to one embodiment of the present specification. DETAILED DESCRIPTION

[0068] The present specification provides an endoscope that uses a CMOS sensor in conjunction with a camera to capture images of internal organs and convert them into digital data. In one embodiment, the present specification provides a main control unit that includes an electrical interface for recognizing and subsequently connecting with a CMOS sensor based endoscope as well as a CCD sensor based endoscope. In one embodiment, the present specification provides a main connector for a CMOS based endoscope that includes a connector pad for connecting with a probe provided on a main control unit of the endoscope. In some embodiments, the probe is a spring loaded push needle probe. In some embodiments, the present specification describes a main connector that is capable of securely connecting with a high speed transmission interface provided in the main control unit. It should be understood that the term "pad" or "pads" refers to one or more flat surfaces, preferably metallic, that are configured to interface with the probes described herein.

[0069] It should also be understood that the flat pad surface, with or without any extensions or members that surround the periphery of the pad, is configured to compress the probe, thereby establishing a data connection.

[0070] It is noted that the term "endoscope" as described herein can refer specifically to a colonoscope, but is not limited to a colonoscope, according to some embodiments. The term "endoscope" can refer to any instrument that is used to examine the interior of a hollow organ or body cavity.

[0071] It is also noted that the various terms described below that appear in the present specification can be used interchangeably or refer to similar components and should in no way be construed as limiting:

[0072] • "utility tube / cable" can also be referred to as an "umbilical tube / cable".

[0073] • "main control unit" can also be referred to as a "controller unit", "main controller" or "fuse box".

[0074] • "viewing element" can also be referred to as an image capture device / component, viewing component, camera, video camera or camcorder.

[0075] This specification is directed to a number of embodiments. The following disclosure is provided in order to enable ordinary skilled persons in the art to practice the specification. Language used in this specification should not be used to limit the scope of claims beyond the ordinary meaning of terms used in the art. The general principles defined herein can be applied to other embodiments and applications without departing from the spirit and scope of the specification. Moreover, terminology and phraseology used should not be taken to be limiting unless otherwise indicated. The specification should be taken as including all possible alternatives, modifications, and equivalents within the scope of the concepts disclosed and depending on the terms used in the claims. For the sake of clarity, details relating to technical material that is known in the technical field related to the specification have not been described in detail so as not to unnecessarily obscure the present specification.

[0076] In the description and claims of the application, each of the words "comprise" "include" and "have", and forms of the above terms, does not exclude the presence of other elements or limit the scope of the application. In this document, the word "adaptable" is used to mean that the particular implementation can be adapted to operate in accordance with the teachings herein. In this document, the word "adapted" is used to mean "programmed" and variations thereof include being adapted to, or otherwise modified to, operate in accordance with the teachings herein.

[0077] Reference is now made to the following description taken in conjunction with the accompanying drawings, in which: Figure 1A which shows a multi-viewing element endoscopy system 100. The system 100 can include a multi-viewing element endoscope 102. The multi-viewing element endoscope 102 can include a handle 104 from which an elongated shaft 106 emerges. The elongated shaft 106 terminates at a tip portion 108 that is steerable by a bending section 110. The handle 104 can be used to manipulate the elongated shaft 106 within a body lumen. The handle can include one or more buttons and / or knobs and / or switches 105 that control the bending section 110 as well as functions such as fluid injection and suction. The handle 104 can also include at least one, and in some embodiments, one or more working channel openings 112 through which surgical tools can be inserted, and one or more side service channel openings.

[0078] A utility cable 114, also referred to as an umbilical, can be connected between the handle 104 and a main control unit 199. In embodiments, the utility cable 114 is connected with the main control unit 199 via a main connector (shown in Figure 2A ). The utility cable 114 can include one or more fluid channels and one or more electrical channels therein. The electrical channels can include at least one data cable for receiving video signals from the forward and side viewing elements, and at least one power cable for providing power to the viewing elements and discrete illuminators.

[0079] The main control unit 199 contains controls needed to display images and / or video streams of internal organs captured by the endoscope 102. The main control unit 199 can manage the transmission of power to the tip portion 108 of the endoscope 102, such as for the viewing elements and illuminators of the tip portion. The main control unit 199 can also control one or more fluid, liquid, and / or suction pumps that supply corresponding functionality to the endoscope 102. To interact with the main control unit 199, one or more input devices 118, such as a keyboard, touch screen, etc., can be connected to the main control unit 199. In Figure 1A In the embodiment shown in FIG. 1, the main control unit 199 includes a screen / display 120 for displaying operational information about the endoscopy procedure when using the endoscope 102. The screen 120 can be configured to display images and / or video streams received from the viewing elements of the multi-viewing element endoscope 102. The screen 120 can also be operated to display a user interface for allowing a human operator to set various characteristics of the endoscopy system.

[0080] Alternatively, the images and / or video streams received from the different viewing elements of the multi-viewing element endoscope 102 can be displayed side-by-side or interchangeably on at least one monitor (not shown) by uploading the information from the main control unit 199 (i.e., the operator can manually switch between views from the different viewing elements). Alternatively, the images and / or video streams can be processed with the main control unit 116 to combine them into a single panoramic video frame based on the overlap between the viewing fields of the viewing elements. In one embodiment, two or more displays can be connected to the main control unit 199, each for displaying a video stream from a different viewing element of the multi-viewing element endoscope 102. This main control unit 199 is described in U.S. Patent Application No. 14 / 263,896, filed April 28, 2014, entitled "Video Processing in Compact Multi-Viewing Element Endoscopy Systems," which is incorporated by reference herein in its entirety.

[0081] Figure 1B A perspective view showing one embodiment of a control panel of a main control unit of a multi-camera endoscopy system. As shown in Figure 1B The control panel 101 contains a main connector housing 103 having a front panel 107. The front panel 107 of the main connector housing includes a first portion 111 containing a light guide opening 113 and a gas channel opening 115, and a second portion 117 including a utility cable opening 119. The light guide opening 113 and the gas channel opening 115 are configured to receive and connect a light guide and a gas channel, respectively, on the main connector, and the utility cable opening 119 is configured to receive and connect an electrical connector of the endoscope. A switch 121 is used to turn the main control unit on and off.

[0082] Figure 2A A main connector proximate to a main control unit is shown in accordance with one embodiment of the present specification. As shown, main connector 202 includes a jet connector 204, where jet connector 204 is typically connected to a fluid supply to provide fluid to a jet opening in the tip of an endoscope; a water bottle connector 206, where water bottle connector 206 is typically connected to a water supply, such as a water bottle or a hospital facility to provide fluid to an insufflation and / or irrigation system placed within the tip of an endoscope; an electrical connector 208, where electrical connector 208 connects between electronic components within the endoscope, such as but not limited to sensors, illuminators, the handle of the endoscope, and the main control unit to provide electricity to the various components; a gas channel 210, where gas channel 210 typically provides a flow of gas to the tip of the endoscope; and a light guide needle 212. Main connector 202 is connected to utility cable 214. Main control unit 216 includes a front panel 218 having a screen 220 for operational information about the endoscopy procedure when using the endoscope. Main control unit 216 also includes a main connector housing 222 for receiving main connector 202. Main connector housing 222 includes a first portion 224 for connecting to light guide needle 212 and gas channel 210; and a second portion 226 for receiving electrical connector 208. Front panel 218 also includes a button 228 for turning the main control unit 216 on and off.

[0083] Figure 2B A main connector securely connected to a main control unit is shown in accordance with one embodiment of the present specification. Referring to Figure 2A and 2B In various embodiments, main connector 202 is connected to main control unit 216 when light guide needle 212 and gas channel 210 are inserted into the light guide opening and gas channel opening, respectively, placed within the first portion 224 opening of main connector housing 222. In addition, electrical connector 208 is inserted into the second portion 226 opening of main connector housing 222.

[0084] Figure 3 A main connector housing / receptacle on the front panel of the main control unit of an endoscope is shown. Figure 4 A main connector of an endoscope is shown. Referring to Figure 3 and 4 The front panel 301 of the main control unit includes a receptacle 302 that includes two portions, a first portion that includes a light guide opening 304 and a gas channel opening 306, and a second portion that includes a utility cable opening 308. Gas channel opening 306 receives and connects to a gas channel (shown in Figure 2A ) and utility cable opening 308 receives and connects to a main connector (shown in Figure 2A ). In embodiments, utility cable opening 308 includes a push / pull electrical connector interface, such as Connector interfaces are well known in the art. Endoscopes, including observation elements connected to a CCD sensor, are equipped with... Connector, which is used via having The practical cable opening 308 of the connector interface transmits the analog image signals captured by the observation element and CCD sensor to the main control unit.

[0085] However, endoscopes, including those with CMOS sensors connected to observation elements used to capture images and videos of internal organs scanned during endoscopic examination, require a separate connection interface for transmitting the captured digital signals, because these signals cannot be transmitted via... The interface transmits the signal. In one embodiment, the interface includes a probe for transmitting such a signal (see reference). Figure 5A The described option can also be set on socket 302 and referenced. Figure 5A The receptacle 302 may also include a locking element, such as, but not limited to, a mechanical lever, which is adjusted to mechanically engage the main connector to the receptacle 302 and disengage the main connector from the receptacle 302.

[0086] As in Figure 4 As shown, the main connector 410 includes a jet connector 412, a water bottle connector 414, and an electrical connector 416. See also... Figure 3 and 4 In one embodiment, the electrical connector 416 includes, but is not limited to, Connector 418, which connects to a utility cable opening 308 on a socket 302 located on the front panel 301 of the endoscope's main control unit. Connector interfaces are used for connection. It should be noted that, as described in further detail below, electrical connector 416 may also include a connector interface capable of connecting a CMOS image-based endoscope device. Electrical connector 416 connects electronic components within the endoscope, such as, but not limited to, sensors, illuminators, and the endoscope handle, to the main control unit via utility cable 420. Utility cable 420 may include one or more fluid channels and one or more electrical channels. The electrical channels may include at least one data cable for receiving video signals from forward and at least one lateral observation element, and at least one power cable for providing power to the observation element and discrete illuminator. In endoscopes including CCD sensors coupled to the observation element, the data cable is connected via… Connector 418 transmits the analog image signal captured by the observation element to the main control unit. Connector 418 and socket 302 located on the main control unit Connector interface 308 is connected. In various embodiments, the data cable of utility cable 420 is also connected via a connection tool, such as the main connector and socket provided on the main control unit. Figure 5A , 5B The digital signals provided by the CMOS sensors located at the end of the endoscope, as described in 5C, are transmitted to the main connector and subsequently to the main control unit.

[0087] The main connector 410 also includes a gas channel 422 connected to a gas channel opening 306; and a light guide pin 424 that enters a light guide opening 304 in the socket 302 to connect the main connector 410 to the main control unit. The main connector also includes a pin 426 capable of securely locking the main connector 410 to a utility cable opening 308. Furthermore, in an embodiment, a connector cover cup may be provided to cover the electrical connector 416 during endoscope reprocessing cycles (cleaning / rinsing) to keep the endoscope waterproof.

[0088] Figure 5A This diagram illustrates a main connector housing for a main control unit compatible with both CCD-based and CMOS-based endoscopes, according to one embodiment of this specification. A socket 500 is disposed on the main control unit of the endoscope system, as shown in... Figure 1B , 2A As shown in Figures 2B and 3, the socket 500 includes a first portion 502 and a second portion 510. In various embodiments, the second portion 510 includes a multi-pin analog interface 512 (…). Figure 3 308), such as An interface is provided for transmitting analog signals captured by a CCD sensor connected to the endoscope's observation element to the main control unit. The first portion 502 includes openings 504 and 506 for connecting to a light guide pin and a gas channel, respectively, of the endoscope's main connector. Furthermore, since the socket 500 is compatible with endoscopes having a CMOS sensor connected to an observation element / camera, the first portion 502 also includes at least one probe 508 for transmitting high-frequency digital image and video signals captured by the CMOS sensor and observation element to the main control unit. In an embodiment, the at least one probe is preferably a spring-loaded push-pin probe.

[0089] More generally, the host connector housing 500 configured to receive the proximal end of an endoscope includes two distinct connection areas separated by a planar portion of the housing 500. The first connection area includes portions 504 and 506 for connecting with the light guide needle and gas channel, respectively, of the host connector of the endoscope. One or more interfaces 508 are positioned circumferentially around the light guide needle and gas channel, the interface 508 configured to receive digital data of bandwidth 1 GHz or greater originating from one or more complementary interfaces located in the host connector of the endoscope. In one embodiment, an exemplary interface includes a coaxial probe interface having a spring-loaded signal pin that compresses upon coupling with a complementary pad in the host connector of the endoscope and is adapted to receive digital transmissions of bandwidth greater than 1 GHz. In one embodiment, an exemplary interface includes a probe interface having a spring-loaded push pin. In another embodiment, an exemplary interface includes a coaxial female receptacle that receives a complementary male coaxial single pin connector and is optimized to receive digital signals of greater bandwidth than the data transmissions in the second area. However, the probe compression and pad combination is preferred because it eliminates the need for the user to precisely align multiple extension members with multiple holes to achieve the necessary assembly. Conversely, using compressible pins and pads, when properly mated with other components such as the light guide, gas channel, and second area analog connections, automatically achieve the digital data connection in the first area.

[0090] The second connection area includes a receptacle interface adapted to connect to and receive data through one or more multi-pin analog connectors. An exemplary interface includes a multi-pin interface that receives a single coaxial push-pull multi-pin connector and is adapted to receive analog transmissions of bandwidth less than 0.5 GHz. In another embodiment, an exemplary interface includes a multi-pin interface that receives a single coaxial push-pull multi-pin connector and is optimized to receive analog signals of bandwidth less than the data transmissions in the first area.

[0091] It should be understood that the light guide needle and gas channel can be located in the second area instead of the first area, the light guide needle can be located in the second area and the gas channel in the first area, or the light guide needle can be located in the first area and the gas channel in the second area. It should also be understood that the location of the planar pad structure in the endoscope connector configured to mate with the spring-loaded pin probe in the first area of the receptacle can be switched, thereby placing the planar pad structure in the receptacle and the spring-loaded pin in the endoscope connector.

[0092] In one embodiment, the first portion 502 includes at least two probes 508 (one for each viewing element / camera of the endoscope) for transmitting high speed image and video data captured using CMOS sensors from the endoscope to the main control unit via the socket 500. In one embodiment, the first portion 502 includes at least three probes 508 (one for each viewing element / camera of the endoscope) for transmitting high speed image and video data captured using CMOS sensors from the endoscope to the main control unit via the socket 500. In various embodiments, the probes 508 can be placed in any location on the socket 500.

[0093] Figure 5B Another exemplary location of the probe 508 shown in FIG. 5B is shown in accordance with one embodiment of the present specification. As shown in FIG. 5B, the probe 508 is located in the second portion 510, which also includes an electrical push / pull multi-pin interface 512 for connecting with the main connector of a CCD-based endoscope. The probe 508 transmits high speed image and video data captured using CMOS sensors from the endoscope to the main control unit via the socket 500. Figure 5A Figure 5B Another exemplary location of the probe 508 shown in FIG. 5B is shown in accordance with one embodiment of the present specification. As shown in FIG. 5B, the probe 508 is located in the second portion 510, which also includes an electrical push / pull multi-pin interface 512 for connecting with the main connector of a CCD-based endoscope. The probe 508 transmits high speed image and video data captured using CMOS sensors from the endoscope to the main control unit via the socket 500.

[0094] In one embodiment, the probe 508 has an impedance of 50 ohms, is capable of transmitting high speed signals in the range of 0 to 2 GHz capacity without compromising signal integrity and includes a spring loaded tip. In embodiments, any commonly available probe capable of transmitting high speed signals of about 2 GHz can be employed in the main connector housing / socket 500. In one embodiment, a probe designed to achieve a spring loaded connection to a Subminiature version A (SMA) socket can be employed, as this eliminates the need for a sacrificial plug and socket. In one exemplary embodiment, a probe having the following specifications can be employed:

[0095] • Impedance: 50 ohms;

[0096] • Operating travel: 4.24 mm (0.167");

[0097] • Spring force of outer shield over operating travel: 57 g (2.0 oz);

[0098] • Spring force of inner contact over operating travel: 113 g (4.0 oz);

[0099] • Current rating (DC): 3 Amp;

[0100] • Maximum frequency (3 db c / o): 2.5 GHz;

[0101] • YSWR: 1.15:1 @ 1 GHz; ​

[0102] • Insertion loss: 0.13 db @ 1 Ghz;

[0103] • Required tail connector: SMB plug.

[0104] Figure 5C A schematic diagram showing a probe employed in a main connector housing according to one embodiment of the present specification. The probe 508 comprises a spring-loaded tip portion 514 and an insulator portion 516 surrounded by a metal shield 518. The probe 508 transmits high speed digital images and video signals captured by a CMOS sensor disposed in the tip portion of the endoscope to the main connector of the endoscope via a utility cable and then to the main control unit of the endoscope via an SMA connector disposed within a receptacle 500 into which the distal end 520 of the probe 508 is fitted. In various embodiments, the same utility cable used to transmit images captured by a CCD sensor of the endoscope to the control unit is used to transmit high speed digital images and video signals captured by a CMOS sensor disposed in the tip of the endoscope to the control unit.

[0105] Figure 6A and 6B A main connector of an endoscope comprising a CMOS sensor according to one embodiment of the present specification is shown. As shown in Figure 6A , the main connector 600 comprises a first portion 602 which further comprises at least one light guide pin 604 which fits into a light guide pin opening on the main control unit (such as the opening 504 shown in Figure 5A ) and a gas channel 606 which fits into a gas channel opening on the main control unit (such as the opening 506 shown in Figure 5A ). The first portion 602 is further fitted with one or more spacers 608 such that each spacer is placed in alignment with a probe disposed on the receptacle of the main control unit of the endoscope (such as the probe 508 shown in Figure 5A ). The main connector 600 can further comprise a second portion 612 which comprises a connector 610.

[0106] Figure 6B A main connector 600 comprising a first portion 602 which further comprises at least one light guide pin 604 which fits into a light guide pin opening on the main control unit (such as the opening 504 shown in Figure 5B ) and a gas channel 606 which fits into a gas channel opening on the main control unit (such as the opening 506 shown in Figure 5B ). The second portion 612 of the main connector 600 comprises The connector 610 is also provided with one or more spacers 608, such that each spacer is placed in alignment with a probe provided on the socket of the main control unit of the endoscope, such as the probe 508 shown in Figure 5B Between each medical procedure, the endoscope must be reprocessed, which can include cleaning the endoscope using chemical components and preparing it for the next patient. In various embodiments, the spacers 608 are resistant to changes or damage caused by any chemicals used to reprocess the endoscope. In various embodiments, the spacers 608 are commonly available and include a metal coating / cap that is used to establish an electrical connection with the end of a cable, such as but not limited to a coaxial cable. In one embodiment, the spacers 608 are covered with gold to enable connectivity.

[0107] When the connector 600 is connected to the socket of the main control unit, such as shown in Figure 5A 、 5B The spacers 608 press against the spring-loaded end of the probe, which results in a secure connection through which high-speed signals originating from the CMOS sensor employed in the end of the endoscope can be transmitted to the main control unit. The high-speed signals are carried from the viewing element to the spacers 608 via utility cables (shown in Figure 1A ; and from the spacers 608 to the main control unit via cables through the probes provided on the socket.

[0108] In various embodiments, the number of spacers 608 provided on the main connector 600 corresponds to the number of probes provided on the main control unit. In the embodiments shown in Figure 5A 、 5B and 6A, 6B, each probe and spacer pair is coupled with a viewing element placed in the end portion of the endoscope to transmit images / video captured by the viewing element to the main control unit. The main connector of an endoscope employing only a CCD-based image sensor is not provided with spacers 608. Image data originating from such an endoscope is transmitted to the main control unit via a connector 610 provided on the second portion 612 of the main connector 600. In one embodiment, any other suitable connection element can be used instead of the spacers 608 for carrying high-speed signals originating from the CMOS sensor employed in the end of the endoscope to the main control unit via the main connector.

[0109] In another embodiment, twisted pair cables, which are well known in the art, can be used instead of coaxial cables for carrying high-frequency digital images and video signals captured by the CMOS sensor and viewing element to the main control unit. A twisted pair cable is a wiring in which two conductors of a single circuit are twisted together for canceling electromagnetic interference (EMI) originating from external sources. Reference is made to Figure 5Aand 5B In one embodiment, the first portion 502 includes at least one twisted pair wire for transmitting high speed video data from the endoscope to the main control unit via the socket 500.

[0110] As can be apparent to those skilled in the art, in various embodiments, other suitable tools can be provided on the endoscope connector and the socket to transmit high speed video data from the CMOS sensor of the endoscope to the main control unit along with the connector; such that the endoscope and the socket are compatible with both CCD and CMOS sensors.

[0111] Figure 7 The video controller or controller circuit board 720 of the main controller of the endoscope is described in detail as to how it is operatively connected to the endoscope 710 and the display unit 750. Referring to Figure 7 The video controller / controller circuit board 720 includes a camera board 721 that controls the power supply to the LEDs 711, transmits control of the operation of the image sensor 712 (including one or more cameras) in the endoscope, and converts the video front signal from the image sensor into a standard video signal. The image sensor 712 can be a charge-coupled device (CCD) or a complementary metal-oxide semiconductor (CMOS) imager. The camera board 721 receives the video front signal 713 produced by the CCD imager and other remote commands 714 from the endoscope 710.

[0112] The controller circuit board 720 also includes elements for processing the video obtained from the image sensor 712 by the camera board 721, as well as other elements for system monitoring and control.

[0113] These elements are connected to the substrate module 752, which is a PCB. In one embodiment, the elements that are ICs (integrated circuits) are connected by soldering, the element 726 (SOM or modular system) is connected by mounting, and all other elements are connected by means of cables.

[0114] The various elements on the substrate module 9052 are described as follows:

[0115] FPGA (Field Programmable Gate Array) 723:

[0116] The FPGA 723 is a logic device that is programmed specifically for the requirements of the system and performs tasks that can be classified by two types: logic tasks that are preferably implemented by hardware (as opposed to software), and logic tasks related to video image processing. In one embodiment, the substrate module 752 includes one or more double data rate type three synchronous dynamic random access memory modules (DDR3) 733 in communication with the FPGA 723.​

[0117] Logic tasks, preferably implemented in hardware, include, but are not limited to:

[0118] • Initialization of some ICs of the base board modules 752 upon power up of the system;

[0119] • Monitoring of the buttons 740 on the front panel 735 for white balance, LED on / off, air flow, and power on / off;

[0120] • Using a watchdog mechanism to monitor the correct operation of the SOM 726;

[0121] • Backing up some system parameters (e.g., air flow level) even when the system is turned off; and

[0122] • Communicating with the camera board 721.

[0123] Logic tasks, implemented in software or hardware, related to video image processing include, but are not limited to:

[0124] • Multiplexing of video inputs - each of the multiple imaging elements has several video interfaces, which are multiplexed via the video input interface 751. In addition, several auxiliary devices are multiplexed via the auxiliary devices video input interface 725.

[0125] • Playback output and DSP record input of an optional Digital Signal Processor (DSP) 722.

[0126] • Output of internal video test patterns to multiple displays via the video output interface 724.

[0127] • Conversion of camera video standards to display video standards.

[0128] • OSD (On Screen Display) insertion, also known as graphic overlay.

[0129] • PIP (Picture in Picture).

[0130] • Stiching of images from several cameras into one image displayed on a single screen.

[0131] • Image adjustments, such as brightness, contrast, etc.

[0132] DSP (Digital Signal Processor) 722:

[0133] The DSP 722 is used to record compressed (encoded) video and to play back decompressed (decoded) video. In one embodiment, the standard for compressing video is H264 or equivalent (such as MPEG).

[0134] In operation, the FPGA 723 selects the desired video to be recorded for the DSP 722, i.e. either one of the inputs, or more likely a copy of one or more of the screens. In the latter case, this includes the OSD and format conversion. In the possible case of a screen format different from the video input format required by the DSP 722, the FPGA 723 also converts the format of the screen to the required DSP 722 format and simultaneously transfers the video to the DSP 722.

[0135] The auxiliary video input interface 725:

[0136] In one embodiment, the video input to the auxiliary video input interface 725 can include analog video such as CVBS (color, video, blanking, sync), S-Video or YPBPR format or digital video (DVI) and can be displayed as such.

[0137] The SOM (System on a Module) 726:

[0138] The SOM 726 provides an interface to input devices such as a keyboard, a mouse and a touch screen via the touch I / F 727. Through these input devices, together with the buttons 740 in the front panel 735, the user controls the functions and operating parameters of the system. In one embodiment, a Peripheral Component Interconnect Express (PCIe) bus connects the SOM 726 with the FPGA 723. The most common data traffic types on the PCIe are:

[0139] a. SOM 726 to FPGA 723: commands (e.g. when the user changes operating parameters); and

[0140] b. FPGA 723 to SOM 726: register values which provide an indication of the internal status and captured images.

[0141] Other functions:

[0142] The controller circuit board 720 can also control one or more fluid, liquid and / or suction pumps which supply the corresponding functions to the endoscope 730 through the pneumatic I / F 728, the pump 729 and the check valve 730. The controller circuit board 720 also includes an on-board power supply 745 and a front panel 735 which provides the user with operating buttons 740.

[0143] The camera board 721 receives video signal 713, which in one embodiment includes three video feeds corresponding to video captures from three endoscope end-effector viewing elements (one forward-looking and two side-looking viewing elements), as generated by image sensor 712. In one embodiment, the three video feed captures corresponding to the three endoscope end-effector viewing elements (forward-looking, left-side-looking, and right-side-looking viewing elements) are displayed on three separate monitors.

[0144] Figure 8 This is a flowchart illustrating a method for detecting and transmitting signals captured by a CCD or CMOS sensor coupled to the observation element of the endoscope, according to one embodiment of this specification, from an endoscope to a main control unit. In various embodiments, the endoscope is provided with means for transmitting analog signals captured by a CCD sensor and high-speed digital signals captured by a CMOS sensor, and the main control unit is provided with means for receiving both types of signals. In embodiments, by using a method including... Connectors (such as in) Figures 6A-6B As shown Connector 610) and one or more gaskets (such as in Figures 6A-6B The gasket 608 shown connects the endoscope to the main control unit; and the main control unit includes a socket having Interfaces (such as in) Figures 5A-5B As shown Interface 512) and at least one probe (such as in Figures 5A-5B The probe shown is 508 or a twisted pair cable.

[0145] In step 802, the endoscope's main connector is inserted into the socket of the main control unit to transmit signals captured by the endoscope's observation element, which is connected to a CMOS or CCD sensor, to the main control unit. In step 804, it is determined whether at least one gasket of the connector aligns with a probe, such as a spring-loaded push-pin probe or a twisted-pair cable, present on the socket of the main connector. If at least one gasket of the connector aligns with the probe or twisted-pair cable present on the socket, then in step 806, it is determined that the endoscope includes a CMOS sensor. Next, in step 808, high-speed image and video digital signals captured by the CMOS sensor connected to the endoscope's observation element are transmitted to the main control unit via the connection between the gasket on the connector and the probe or twisted-pair cable on the socket. If at least one gasket of the connector is not aligned with the probe or twisted-pair cable present on the socket, then in step 810, it is determined that the endoscope includes a CCD sensor. Next, in step 812, the high-speed image and video digital signals captured by the CMOS sensor, which is connected to the endoscope's observation element, are transmitted via the connection between the gasket on the connector and the probe or twisted-pair cable on the socket. Connectors and sockets The connection between the interfaces will be transmitted to the main control unit by using the analog signal captured by the CCD sensor coupled with the viewing element of the endoscope.

[0146] The above examples are merely illustrative of the many applications of the present system. Although only a few embodiments of the present system have been described herein, it should be understood that the present system might be embodied in many other specific forms without departing from the spirit or scope of the present system. Therefore, the present examples and embodiments are to be considered as illustrative and not restrictive, and the present system can be modified in many ways within the scope of the appended claims.

Claims

1. An endoscope control unit, comprising: A socket configured to receive a connector for a medical device; The first region of the socket includes a first probe and a light guide, the first probe being configured to receive a first set of video data signals having a first bandwidth, and the first probe including a spring-loaded pin. and The second region of the socket, spaced apart from the first region, includes an interface configured to receive a second set of video data signals having a second bandwidth.

2. The control unit of claim 1, wherein the second region includes a multi-pin interface configured to attach to a complementary multi-pin interface in a connector of the medical device.

3. The control unit of claim 1, wherein the first probe is configured to be compressed when the socket is attached to the connector of the medical device.

4. The control unit according to claim 1, wherein the first bandwidth is greater than the second bandwidth.

5. The control unit according to claim 4, wherein the first bandwidth is greater than 1 GHz and the second bandwidth is less than 0.5 GHz.

6. The control unit of claim 1, wherein the first region further comprises a gas channel, a second probe, and a third probe, wherein the first probe, the second probe, and the third probe are circumferentially positioned around at least one of the light guide and the gas channel, and wherein the second probe and the third probe each comprise a spring-loaded pin.

7. The control unit according to claim 1, wherein the medical device is an endoscope.

8. An endoscope control unit, comprising: The socket, configured as a main connector for receiving medical devices, wherein: The medical device includes a distal portion having at least one observation element. The socket has: 1) a first region including a light guide and at least one probe configured to receive a first set of video data signals, wherein the at least one probe includes a spring-loaded pin; and 2) a second region configured to receive a second set of video data signals, wherein the second set of video data signals has a bandwidth lower than that of the first set of video data signals. The main connector is configured to receive and transmit the first set of video data signals from the at least one viewing element, and When the main connector is attached to the socket, the at least one probe abuts against at least one pad of the main connector, wherein the main connector is configured to transmit the first set of video data signals through the at least one pad.

9. The control unit of claim 8, wherein the at least one probe is compressed when the main connector is attached to the socket.

10. The control unit of claim 8, wherein the second region includes a multi-pin interface.

11. The control unit of claim 8, wherein the first set of video data signals comprises digital data with a bandwidth greater than 1 GHz.

12. The control unit of claim 11, wherein the second set of video data signals comprises digital data with a bandwidth of less than 0.5 GHz.

13. The control unit of claim 8, wherein the first region further comprises a gas channel, a second probe and a third probe, wherein the at least one probe is a first probe, wherein the first probe, the second probe and the third probe are circumferentially positioned around at least one of the light guide and the gas channel, and wherein the second probe and the third probe each comprise a spring-loaded pin.

14. The control unit of claim 8, wherein the medical device is an endoscope.

15. An endoscope control unit, comprising: A socket configured to receive a connector for a medical device; The first region of the socket, wherein the first region includes a light guide and at least one probe configured to receive a first set of video data signals having a first bandwidth, and the at least one probe includes a spring-loaded pin; and A second region of the socket, spaced apart from the first region, includes an interface configured to receive a second set of video data signals having a second bandwidth, wherein the second bandwidth is lower than the first bandwidth.

16. The control unit of claim 15, wherein the second region includes a multi-pin interface configured to attach to a complementary multi-pin interface in a connector of the medical device.

17. The control unit of claim 15, wherein the first set of video data signals comprises digital data with a bandwidth greater than 1 GHz.

18. The control unit of claim 17, wherein the second set of video data signals comprises digital data with a bandwidth of less than 0.5 GHz.

Images