The present specification relates generally to endoscopes, and more specifically, to a main control unit for detecting and responding to different types of image sensors positioned within an endoscope.
Endoscopes have attained great acceptance within the medical community, since they provide a means for performing procedures with minimal patient trauma, while enabling the physician to view the internal anatomy of the patient. Over the years, numerous endoscopes have been developed and categorized according to specific applications, such as cystoscopy, colonoscopy, laparoscopy, upper GI endoscopy and others. Endoscopes may be inserted into the body's natural orifices or through an incision in the skin.
Some endoscopes have viewing elements for viewing an internal organ, such as the colon, and an illuminator for illuminating the field of view of the viewing elements. The viewing elements and illuminators are located in a tip of the endoscope and are used to capture images of the internal walls of the body cavity being endoscopically scanned. The captured images are sent to a control unit coupled with the endoscope via one of the channels present in the scope shaft, for being displayed on a screen coupled with the control unit. During an endoscopic procedure, an operating physician guides the endoscope within a patient's body by using the captured images displayed on the screen coupled with the control unit as a guide.
Endoscopes capture images of internal organs by means of one or more viewing elements such as cameras placed in a tip portion. Each viewing element is coupled with an image sensor to transform that light captured by the viewing element into at least one image. Image sensors may be Charged Coupled Devices (CCD's) or Complementary Metal Oxide Semiconductor (CMOS) image sensors, or other suitable devices having a light sensitive surface usable for capturing an image. Signals such as analog signals or digital signals generated by the image sensors are transmitted to a main control unit via a main connector of the endoscope for display on a screen coupled with the main control unit. CCD based endoscopes are fitted with main connectors having a push/pull electric connector, such as a LEMO® connector, which are commonly known in the art. A LEMO® connector fits into a corresponding LEMO® connector interface provided on a main control unit of the endoscope for transmission of the analog image signals having a bandwidth of ⅓ GHz. However, CMOS image sensors generate digital image/video signals having a bandwidth of the order of 1.5 GHz or more which is very high compared to signals generated by the CCD image sensors, and, as a result cannot be transmitted via a standard LEMO® interface.
There is a therefore a need for a main control unit interface and/or adapter that can support both CCD-based and CMOS-based main connector fittings in endoscopes.
What is also needed is a high-speed transmission interface that maintains signal integrity and does not result in signal distortion that can be employed with CMOS-based endoscopes.
The present specification discloses an endoscope system comprising: an endoscope comprising a tip section having at least one viewing element; a main connector coupled with the tip section and configured to receive and transmit a first set of video data signals from the at least one viewing element wherein the main connector comprises at least one pad; and a control unit comprising a receptacle positioned on an exterior surface of the control unit and configured to receive the main connector, wherein the receptacle has a first region, wherein the first region comprises at least one probe, wherein said at least one probe comprises a spring loaded pin, and wherein, upon attachment of the main connector to said receptacle, the at least one probe abuts the at least one pad such that the at least one probe is compressed.
Optionally, the at least one pad is planar and metallic.
Optionally, the first region comprises a light guide, a gas channel, and a second probe.
Optionally, the main connector comprises a second pad wherein, upon attachment of the main connector to said receptacle, the second probe abuts the second pad such that the second probe is compressed.
Optionally, the receptacle further comprises a second region and wherein said second region comprises a multi-pin interface configured to receive a second set of video data signals and wherein the second set of video data signals have a lower bandwidth than a bandwidth of the first set of video data signals.
Optionally, the first set of video data signals are generated by a CMOS sensor in the at least one viewing element and have a bandwidth greater than 1 GHz.
Optionally, the second set of video data signals are generated by a CCD sensor in the at least one viewing element and have a bandwidth less than 0.5 GHz.
Optionally, the first region comprises a light guide, a gas channel, a second probe, and a third probe, wherein the at least one probe, the second probe and third probe are positioned circumferentially around at least one of the light guide and gas channel and wherein each of the second probe and the third probe comprises a spring-loaded pin.
Optionally, the main connector comprises a second pad and a third pad and wherein, upon attachment of the main connector to said receptacle, the second probe abuts the second pad such that the second probe is compressed and the third probe abuts the third pad such that the third probe is compressed.
The present specification also discloses an endoscope system comprising: an endoscope comprising a tip section having a first viewing element and a second viewing element; a main connector coupled with the tip section and configured to receive and transmit a first set of video data signals from the first viewing element and a second set of video data signals from the second viewing element, wherein the main connector comprises 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 comprising a receptacle positioned on an exterior surface of the control unit and configured to receive the main connector, wherein the receptacle has a first region, wherein the first region comprises a first probe and a second probe, wherein each of the first probe and second probe comprises a spring loaded pin, and wherein, upon attachment of the main connector to said receptacle, the first probe abuts the first pad such that the first probe is compressed and the second probe abuts the second pad such that the second probe is compressed.
Optionally, each of the first pad and second pad is planar and metallic.
Optionally, the receptacle further comprises a second region wherein said 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 have 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.
Optionally, the first set of video data signals are generated by a CMOS sensor and have a bandwidth greater than 1 GHz.
Optionally, the third set of video data signals are generated by a CCD sensor and have a bandwidth less than 0.5 GHz.
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 positioned on an exterior surface of the control unit and configured to receive a main connector of the endoscope; a first region positioned within an exterior face 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 positioned within the exterior face of the receptacle and separated 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.
Optionally, the interface of the second region comprises a multi-pin interface configured attach to a complementary multi-pin interface in a connector of the endoscope.
Optionally, the first probe is configured to be compressed upon attachment of the receptacle to a connector of the endoscope.
Optionally, the first set of video data signals comprise digital data with a bandwidth greater than 1 GHz.
Optionally, the second set of video data signals comprise digital data with a bandwidth less than 0.5 GHz.
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 third probe are positioned circumferentially around at least one of the light guide and gas channel and wherein each of the second probe and the third probe comprises a spring loaded pin.
The present specification also discloses an endoscope comprising: a tip section comprising a plurality of viewing elements coupled with at least one CMOS image sensor for transforming light captured by at least one viewing element into digital signals representing at least one image; and a main connector coupled with the tip section for transmitting the digital signals to a main control unit of the endoscope, the main connector comprising: 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 pushing against the pads during the digital signal transmission.
Optionally, the viewing elements are cameras.
Optionally, the digital signal generated by the CMOS sensor is a high-speed signal having a bandwidth of 1.5 GHz.
Optionally, the number of pads provided on the main connector corresponds to the number of probes provided on the main connector housing.
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.
The present specification also discloses a main connector of an endoscope coupled with a tip section comprising: a plurality of viewing elements coupled with at least one CMOS image sensor for transforming light captured by the viewing element into digital signals representing at least one image, wherein 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, and wherein the probes comprise spring loaded tips pushing against the pads during the digital signal transmission.
The present specification also discloses a control unit for coupling with main connectors of endoscopes comprising one or both of CCD based sensors and CMOS based sensors for transforming light captured by one or more viewing elements of the endoscope into signals representing at least one image, the control unit comprising a plurality of probes for receiving the signals from the endoscope via a main connector comprising one or more pads for transmitting the signals, the probes comprising spring loaded tips pushing against the pads during the signal transmission.
The present specification also discloses an endoscope comprising: a tip section comprising a plurality of viewing elements coupled with at least one or both of a CMOS image sensor and a CCD image sensor for transforming light captured by the viewing element into digital and/or analog signals; and a main connector coupled with the tip section 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 the analog signals having a bandwidth of less than 0.5 GHz provided by the at least one image sensor via the main connector housing of the main control unit.
Optionally, the viewing elements are cameras.
Optionally, the digital signal generated by the CMOS sensor is a high-speed signal having a bandwidth of 1.5 GHz.
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 pushing against the pads during the digital signal transmission.
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.
Optionally, the number of pads provided on the main connector corresponds to the number of probes provided on the main connector housing.
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.
The present specification also discloses an endoscope comprising: a tip section comprising a plurality of viewing elements coupled with at least one image sensor for transforming light captured by the viewing elements into signals, and a main connector coupled with the tip section for transmitting the signals to a main control unit of the endoscope; the main connector comprising: a LEMO® connector for transmitting analog signals provided by the at least one image sensor via the main connector housing of the main control unit, and at least one pad for transmitting digital signals provided by at least one image sensor to at least one probe provided on a main connector housing of the main control unit.
Optionally, the at least one image sensor is a CMOS sensor. Still optionally, the at least one image sensor is a CCD sensor.
Optionally, the at least one probe is adapted to connect with at least one connection means for transmitting digital signals provided by the CMOS image sensor. Still optionally, the connection means may be one of a spring loaded push-pin probe, coaxial probe or twisted pair.
The present specification also disclose an endoscope comprising: a tip section comprising at least one viewing element coupled with an image sensor for transforming light captured by the at least one viewing element into signals, and a main connector coupled with the tip section for transmitting the signals to a main control unit of the endoscope, wherein the main connector comprises: a LEMO® connector for transmitting the analog signals provided by the image sensor via the 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 a main connector housing of the main control unit.
Optionally, the at least one image sensor is a CMOS sensor. Still optionally, the at least one image sensor is a CCD sensor.
Optionally, the at least one probe is adapted to connect with at least one connection means for transmitting digital signals provided by the CMOS image sensor. Still optionally, the connection means may be one of a spring loaded push-pin probe, coaxial probe or twisted pair.
The present specification also discloses a control unit for coupling with main connectors of endoscopes comprising one or both of CCD based sensors and CMOS based sensors for transforming light captured by one or more viewing elements of the endoscope into digital and/or analog signals representing at least one image, the control unit comprising a plurality of probes for receiving the digital and/or analog signals from the endoscope via a main connector comprising one or more pads for transmitting the digital and/or analog signals, the probes comprising spring loaded tips pushing against the pads during the digital and/or analog signal transmission.
The aforementioned and other embodiments of the present specification shall be described in greater depth in the drawings and detailed description provided below.
These and other features and advantages of the present specification will be appreciated, as they become better understood by reference to the following detailed description when considered in connection with the accompanying drawings, wherein:
The present specification provides an endoscope that uses CMOS sensors in conjunction with cameras for capturing images of internal organs and converting the same into digital data. In an embodiment, the present specification provides a main control unit comprising an electrical interface for recognizing and subsequently connecting with both a CMOS sensor-based endoscope as well as a CCD sensor-based endoscope. In an embodiment, the present specification provides a main connector for CMOS based endoscopes comprising connector pads for connecting with probes provided on a main control unit of the endoscope. In some embodiments, the probe is a spring-loaded push-pin probe. In some embodiments, the present specification describes a main connector that can securely connect with a high-speed transmission interface provided in the main control unit. It should be appreciated that the term “pads” or “plurality of pads” refers to one or more planar surfaces, preferably metallic, configured to interface with the probes described herein. It should further be appreciated that the planar pad surface, with or without any extensions or members around a periphery of the pad, is configured to compress the probe, to thereby establish a data connection.
It is noted that the term “endoscope” as mentioned herein may refer particularly to a colonoscope, according to some embodiments, but is not limited only to colonoscopes. The term “endoscope” may refer to any instrument used to examine the interior of a hollow organ or cavity of the body.
It should also be noted that a plurality of terms, as follows, appearing in this specification are used interchangeably to apply or refer to similar components and should in no way be construed as limiting:
The present specification is directed towards multiple embodiments. The following disclosure is provided in order to enable a person having ordinary skill in the art to practice the specification. Language used in this specification should not be interpreted as a general disavowal of any one specific embodiment or used to limit the claims beyond the meaning of the terms used therein. The general principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of the specification. In addition, the terminology and phraseology is used for the purpose of describing exemplary embodiments and should not be considered limiting. Thus, the present specification is to be accorded the widest scope encompassing numerous alternatives, modifications and equivalents consistent with the principles and features disclosed. For purpose of clarity, details relating to technical material that is known in the technical fields related to the specification have not been described in detail so as not to unnecessarily obscure the present specification.
In the description and claims of the application, each of the words “comprise” “include” and “have”, and forms thereof, are not necessarily limited to members in a list with which the words may be associated. It should be noted herein that any feature or component described in association with a specific embodiment may be used and implemented with any other embodiment unless clearly indicated otherwise.
Reference is now made to
A utility cable 114, also referred to as an umbilical tube, may connect between handle 104 and a Main Control Unit 199. In embodiments, utility cable 114 connects with the main control unit 199 via a main connector (shown in
The main control unit 199 contains the controls required for displaying the images and/or video streams of internal organs captured by the endoscope 102. The main control unit 199 may govern power transmission to the endoscope's 102 tip section 108, such as for the tip section's viewing elements and illuminators. The main control unit 199 may further control one or more fluid, liquid and/or suction pump(s), which supply corresponding functionalities to the endoscope 102. One or more input devices 118, such as a keyboard, a touch screen and the like may be connected to the main control unit 199 for the purpose of human interaction with the main control unit 199. In the embodiment shown in
Optionally, the images and/or video streams received from the different viewing elements of the multi-viewing element endoscope 102 may be displayed separately on at least one monitor (not seen) by uploading information from the main control unit 199, either side-by-side or interchangeably (namely, the operator may switch between views from the different viewing elements manually). Alternatively, these images and/or video streams may be processed by the main control unit 116 to combine them into a single, panoramic video frame, based on an overlap between fields of view of the viewing elements. In an embodiment, two or more displays may 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. The main control unit 199 is described in U.S. patent application Ser. No. 14/263,896, entitled “Video Processing in A Compact Multi-Viewing Element Endoscope System”, and filed on Apr. 28, 2014, which is herein incorporated by reference in its entirety.
However, endoscopes comprising CMOS sensors coupled with viewing elements for capturing images and videos of internal body organs that are being endoscopically scanned require a separate connection interface for transmission of the captured digital signals as these signals cannot be transmitted via a LEMO® interface. In an embodiment, an interface (described with reference to
As illustrated in
Main connector 410 further comprises a gas channel 422, which connects with the gas channel opening 306 and a light guide pin 424, which goes into the light guide opening 304 of receptacle 302 in order to connect the main connector 410 with the main control unit. Main connector further comprises pins 426, which enable secure locking of the main connector 410 with the utility cable opening 308. Also in embodiments, a connector cover cup may be provided to cover the electrical connector 416 during reprocessing cycles (washing/cleaning) of the endoscope in order to make the endoscope waterproof.
More generally, the main connector housing 500, which is configured to receive a proximal end of an endoscope, comprises two distinct connection regions that are separated by a planar portion of the housing 500. The first connection region comprises receiving portions 504 and 506 for connecting with a light guide pin and a gas channel, respectively, of a main connector of an endoscope. Positioned circumferentially around the light guide pin and gas channel are one or more interfaces 508 configured to receive digital data having a bandwidth of 1 GHz or more from one or more complementary interfaces positioned in the main connector of an endoscope. In an embodiment, an exemplary interface comprises a coaxial probe interface having a spring-loaded signal pin that compresses upon coupling with a complementary pad in the endoscope main connector and is adapted to receive digital transmissions having bandwidths of more than 1 GHz. In an embodiment, an exemplary interface comprises a probe interface having a spring-loaded push-pin. In another embodiment, an exemplary interface comprises a coaxial female receiver that receives a complementary male coaxial single pin connector and is optimized to receive digital signals having greater bandwidth than the data transmissions in the second region. The probe compression and pad combination is preferred, however, because it obviates the need for a user to precisely align multiple extending members with multiple holes in order to achieve the requisite fit. Rather, using compressible pins and pads, the digital data connections in the first region are automatically achieved when the other components, such as the light guide, gas channel, and second region analog connections, are properly mated.
The second connection region comprises a receiver interface that is adapted to connect to, and receive data through, one or more multi-pin analog connectors. An exemplary interface comprises a multi-pin interface that receives a single coaxial, push-pull, multi-pin connector and is adapted to receive analog transmissions having bandwidths of less than 0.5 GHz. In another embodiment, an exemplary interface comprises a multi-pin interface that receives a single coaxial, push-pull, multi-pin connector and is optimized to receive analog signals having less bandwidth than the data transmissions in the first region.
It should be appreciated that the light guide pin and gas channel could be positioned in the second region, rather than the first, that the light guide pin could be positioned in the second region while the gas channel is in the first region, or that the light guide pin could be positioned in the first region while the gas channel is in the second region. It should further be appreciated that the positions of the planar pad structures in the endoscope connector, configured to mate with the spring-loaded pin probes in the first region of the receptacle, can be switched, thereby placing the planar pad structures in the receptacle and the spring loaded pins in the endoscope connector.
In an embodiment, first section 502 comprises at least two probes 508 (one for each viewing element/camera of the endoscope) for transferring high-speed image and video data captured by using CMOS sensors from the endoscope to the main control unit via the receptacle 500. In an embodiment, first section 502 comprises at least three probes 508 (one for each viewing element/camera of the endoscope) for transferring high-speed image and video data captured by using CMOS sensors from the endoscope to the main control unit via the receptacle 500. In various embodiments, the probes 508 may be placed at any location on the receptacle 500.
In an embodiment, a 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 the signal integrity, and comprises a spring-loaded tip. In embodiments, any commonly available probe capable of transmitting high-speed signals of about 2 GHz may be employed in the main connector housing/receptacle 500. In an embodiment, probes designed to make a spring-loaded connection to sub miniature version A (SMA) sockets may be employed, as this substitutes the need for sacrificial plugs and sockets. In an exemplary embodiment, a probe having the following specifications may be employed:
When the connector 600 is connected to a main control unit's receptacle, such as shown in
In various embodiments, the number of pads 608 provided on main connector 600 corresponds to the number of probes provided on the main control unit. In the embodiment illustrated in
In another embodiment, twisted-pair cabling commonly known in the art may be used for transferring the high frequency digital image and video signals captured by the CMOS sensors and viewing elements to the main control unit, instead of coaxial cables. Twisted pair cabling is a type of wiring in which two conductors of a single circuit are twisted together for the purposes of canceling out electromagnetic (EMI) from external sources. Referring to
As may be apparent to persons of skill in the art, in various embodiments, other suitable means may be provided on the endoscope connector and receptacle, to transfer high speed video data from CMOS sensors of the endoscope to the main control unit, along with a LEMO® connector; thereby making the endoscope and receptacle compatible with both CCD and CMOS sensors.
The camera board 721 receives pre-video signal(s) 713 generated by the CCD imager and also other remote commands 714 from the endoscope 710.
Controller circuit board 720 further comprises elements for processing the video obtained from the image sensors 712 through the camera board 721, as well as other elements for system monitoring and control.
These elements are connected with the Base Board Module 752, which is a PCB. In one embodiment, elements which are ICs (Integrated Circuits) are connected by soldering, element 726 (SOM or System on Module) is connected by mounting, while all other elements are connected by means of cables.
Various elements on the Base Board Module 9052 are described as follows:
FPGA (Field Programmable Gate Array) 723:
FPGA 723 is a logic device programmed specifically for the system requirements and performs tasks that may be categorized by two types: logic tasks which are preferably implemented by hardware (as opposed to software), and logic tasks related to video image processing. In one embodiment, the Base Board 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.
Logic tasks, which are preferably implemented by hardware, include, but are not limited to:
Logic tasks related to video image processing, which are implemented by software or hardware include, but are not limited to:
DSP 722 is used for recording compressed (coded) video and playing back decompressed (decoded) video. In one embodiment, the standard of compressed video is H264 or equivalent (such as MPEG).
Operationally, FPGA 723 selects for the DSP 722 the desired video to be recorded, i.e. any 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 likely case of the screen's format differing from that of DSP's 722 required video input format, the FPGA 723 also converts the screen's format to the desired DSP 722 format while transmitting video to the DSP 722.
Auxiliary Video Input Interface 725:
In one embodiment, the video input to the Auxiliary Video Input Interface 725 may comprise analog video, such as in CVBS (color, video, blanking, sync), S-Video or YPBPR format or digital video (DVI), and may be displayed as such.
SOM (System on Module) 726:
The SOM 726 provides an interface to input devices such as keyboard, mouse, and touchscreen via Touch I/F 727. Through these input devices, together with the buttons 740 in the Front Panel 735, the user controls the system's functionality and operational parameters. In one embodiment, a peripheral component interconnect express (PCIe) bus connects the SOM 726 with the FPGA 723. Most common types of data traffic over the PCIe are:
a. SOM 726 to FPGA 723: Commands (for example, when the user changes operational parameters); and
b. FPGA 723 to SOM 726: Registers values, which provide an indication of the internal status, and captured images.
Other Functionalities:
The controller circuit board 720 may further control one or more fluid, liquid and/or suction pump(s), which supply corresponding functionalities to the endoscope through pneumatic I/F 728, pump 729 and check valve 730. The controller circuit board 720 further comprises an on-board power supply 745 and a front panel 735, which provides operational buttons 740 for the user.
The camera board 721 receives video signal 713 which, in one embodiment, comprises three video feeds, corresponding to video pickups by three endoscopic tip viewing elements (one front and two side-looking viewing elements), as generated by the image sensor 712. In one embodiment, the three video feed pickups, corresponding to the three viewing elements (the front-looking, left-side looking and right-side looking viewing elements) of an endoscopic tip, are displayed on three respective monitors.
At step 802, the main connector of the endoscope is inserted into the receptacle of the main control unit for transferring the signals captured by the viewing elements of the endoscope coupled with either CMOS or CCD sensors, to the main control unit. At step 804, it is determined if at least one pad of the connector is aligned with either a probe, such as a spring-loaded push-pin probe or a twisted pair cable present on the receptacle of the main controller. If at least one pad of the connector is aligned with either a probe or a twisted pair cable present on the receptacle, then at step 806 it is determined that the endoscope comprises CMOS sensors. Next, at step 808, high-speed image and video digital signals captured by using CMOS sensors coupled with the viewing elements of the endoscope are transferred to the main control unit via the connection between the pads on the connector and the probes or the twisted pair cables on the receptacle. If at least one pad of the connector is not aligned with either a probe or a twisted pair cable present on the receptacle, then at step 810 it is determined that the endoscope comprises CCD sensors. Next, at step 812 analog signals captured by using CCD sensors coupled with the viewing elements of the endoscope are transferred to the main control unit via the connection between the LEMO® connector provided on the endoscope's connector and the LEMO® interface provided on the receptacle.
The above examples are merely illustrative of the many applications of the system of present specification. Although only a few embodiments of the present specification have been described herein, it should be understood that the present specification might be embodied in many other specific forms without departing from the spirit or scope of the specification. Therefore, the present examples and embodiments are to be considered as illustrative and not restrictive, and the specification may be modified within the scope of the appended claims.
This application is a continuation of U.S. Nonprovisional patent application Ser. No. 15/602,411, filed May 23, 2017, which claims the benefit of U.S. Provisional Patent Application Ser. No. 62/352,898, filed on Jun. 21, 2016. The present application relates to U.S. patent application Ser. No. 14/468,189, which has been assigned United States Patent Publication Number 20150057500, entitled “System for Connecting and Disconnecting A Main Connector and a Main Control Unit of An Endoscope”, filed on Aug. 26, 2014, which in turn relies on U.S. Patent Provisional Application No. 61/870,144, of the same title, and filed on Aug. 26, 2013 and U.S. Patent Provisional Application No. 61/968,436, of the same title, and filed on Mar. 21, 2014, for priority. The above-listed applications are herein incorporated by reference in their entirety.
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Number | Date | Country | |
---|---|---|---|
20210219823 A1 | Jul 2021 | US |
Number | Date | Country | |
---|---|---|---|
62352898 | Jun 2016 | US |
Number | Date | Country | |
---|---|---|---|
Parent | 15602411 | May 2017 | US |
Child | 17223847 | US |