HK1189788B - Laparoscope system - Google Patents

Abstract

A visual system for laparoscopy comprising a visual device having a visual head member and an elongated connector; a manipulation device having a handheld operation portion, an insertion portion and a first contact element; and an external device comprising means to communicate with the vision head member, via the first contact element, when the elongated connector is mounted in an lumen of the insertion portion. The insertion portion of the manipulation device is configured to be extendable out from a body cavity through an airtight passage whereby the elongated connector is configured to be slidably mounted into the lumen of the insertion portion outside of the body cavity upon the insertion portion is withdrawn into the body cavity.

Description

Laparoscope system

Technical Field

The present invention relates generally to endoscopic systems, and in particular to micro-laparoscopic systems and methods of configuring the same.

Background

Laparoscopic or minimally invasive surgery involves the use of several relatively small incisions deep into the abdominal cavity through which different types of instruments and accessories are introduced and used for different surgical procedures (which are typically performed from endoscopic images). Although generally considered superior to open surgery in several respects, the use of multiple 5-15mm incisions still results in local pain, scarring and complications that may be associated with the incision (e.g., hernia at the scar), and requires one or two assistants in addition to the surgeon. For example, laparoscopic methods and surgical devices are described in U.S. patents 5980493, 7593777, and 7316699 (the disclosures of which are incorporated herein by reference in their entirety), the disclosures of which are incorporated herein by reference.

In a relatively new laparoscopic approach, commonly referred to as "needle laparoscopy", the laparoscopic wounds are replaced with small incisions, typically 2-3mm in diameter. A thin catheter is inserted into a small incision and a microsurgical instrument is deployed and manipulated through the catheter. These small instruments have very slender tips that make dissection and tissue manipulation more difficult. Furthermore, the tendency of the instrument tip to break is great and the removal of the tip is very cumbersome and difficult. Needle laparoscopic surgery is performed under visualization conditions created by a small television camera, which replaces the generally large-sized conventional laparoscope (typically 5-10mm in diameter) and contains the illumination function, and is typically introduced through an umbilical hole through a large trocar unit (trocarunit). Due to their small size, small video cameras (typically 3mm or less in diameter) are considered to have a poor ability to capture and transmit High Definition (HD) visual data relative to conventional laparoscopes. The small camera is subject to a smaller size video sensor that it carries, and the reduction in the number of active pixels allows the smaller size video sensor to provide smaller resolution. To achieve HD video resolution using a pixel size of about 5 μm, the diameter of the smallest active sensor surface should be about 8mm, whereas in a red-green-blue (RGB) format using a pixel size of about 2.5 μm, the diameter of the smallest active sensor area should be at least about 4 mm.

Due to the small effective size of the pixels, it can also be understood that the amount of collected illumination or flow is poor, thus further affecting video quality. Because of the excessive reduction in transmitted light caused by conventional laparoscopic recessed illumination, current needle laparoscopic methods employ a plurality of fine optical fibers to transmit illumination from an external illumination source into the body cavity.

Small cameras are also subject to a small field-of-view (FOV) due to their use of small diameter objectives, which typically provides a field of view between 75-90 ° in standard laparoscopes. In addition, surgeons also prefer a large depth-of-field (DOF), which may be subject to a small lens, so that tissues and organs in the background will not be too blurred to be identified and monitored at target locations within the focal distance.

Disclosure of Invention

Accordingly, embodiments of the present invention seek to mitigate, alleviate or eliminate one or more deficiencies, disadvantages or issues in the art, such as the above-identified, singly or in any combination by providing a device, a system and a method according to the appended patent claims.

In one aspect of the present invention, a vision apparatus for laparoscopy is provided. The vision device is part of a vision system. The ocular device includes an elongated connector for conducting a signal (e.g., a digital signal). The elongated connector has a distal end and a proximal end and is configured to: is slidably arranged at least partly inside the insertion portion of the operating device. The insertion portion may be an elongate hollow needle. The vision device further includes a vision head component including an image capture device and an illumination source. The vision head member is attached to a distal end of the elongated connector and the elongated connector facilitates direct communication with at least one joint element of the operation device.

In one embodiment of the ocular device, the elongated connector is an elongated Printed Circuit Board (PCB). The elongate connector may be at least 5cm, optionally at least 10cm, optionally at least 15cm, optionally at least 20cm, optionally between 15cm and 35cm or higher or lower or intermediate.

In one embodiment of the ocular device, the proximal end of the elongated connector has a second tab element. The second connector element may comprise an image acquisition connector and/or an illumination connector and/or a power connector. The second joint element is connected to the first joint element of the operator.

In an embodiment of the visual device, the image acquisition device comprises an image sensor and/or a lens. A lens may also mean a lens system comprising more than one lens element.

In one embodiment of the ocular device, the active area size of the image sensor is equal to or greater than the outer diameter of the elongated connector. Further, the lens has a diameter equal to or greater than an outer diameter of the elongated connector. Preferably, the sensor is configured to provide a high definition image. For example, large sensors and/or lenses have the ability to have a better field of view and depth of field.

In one embodiment of the visual device, the illumination source is a Light Emitting Diode (LED). The illumination source is configured directly at the vision head member to provide improved illumination capabilities. The LEDs may be white light LEDs or LEDs with a narrow spectrum around a preferred wavelength.

In an embodiment of the visual device, the illumination source is placed at a distance from an objective opening of the image acquisition device. When positioned at a distance from the objective opening, the vision head component may further comprise means for collecting, reflecting and/or projecting at least a portion of the light generated by the illumination source towards the target.

In one embodiment of the visual device, the means for collecting, reflecting and/or projecting may be a reflector having a deployable structure.

In one embodiment of the ocular device, the reflector may be expandable and/or contractible between a smaller diameter and a larger diameter. The reflector may be, for example, an iris-shaped design comprising a plurality of rigid or semi-rigid members.

In one embodiment of the visualization device, the illumination source is coupled to a plurality of optical fibers, the optical fibers being disposed over and along a length of the visualization head member.

In one embodiment of the ocular device, the plurality of optical fibers may be positioned over the deployable member, thereby allowing light to be projected in a cone.

In one embodiment of the ocular device, the maximum outer diameter of the elongated connector is 3 mm.

In one embodiment of the ocular device, the elongated connector has an outer diameter of 0.1-0.3mm, the outer diameter of the elongated connector being smaller than the outer diameter of the insertion portion.

In one embodiment of the vision apparatus, the image capture device provides a field of view of 70-140. The image capture device may also be configured to provide a depth of field of 1cm-30 cm.

In one embodiment of the ocular device, the elongated connector is non-rigid.

In one embodiment of the ocular device, the ocular head member has a diameter substantially larger than a diameter of the insertion portion.

In one embodiment of the ocular device, the ocular head member has a diameter of at least 5 mm.

A second aspect of the present invention provides an operating device for laparoscopy. The manipulation device includes an insertion portion having a distal end, a proximal end, and a lumen. The lumen extends axially for at least part of the length of the insertion portion. The insertion portion is rigid. The insertion portion may be a hollow needle. The insertion portion may provide protection and/or reinforcement to the elongated connector when the insertion portion receives the elongated connector.

The operation device further includes a handheld operation portion having a communication unit for communicating with an external device. The external device may be a power source, an electrical signal device, an image signal device, a video receiver, or other device. The operating device also includes a joint element for facilitating direct communication to a vision head member of a vision device. The handheld operating portion is disposed at a proximal end of the insertion portion and an opening is disposed at a distal end of the insertion portion to slidably position an elongated connector of the ocular device inside an inner lumen of the insertion portion.

In an embodiment of the operating device, the joint element is arranged inside the hand-held operating part.

In one embodiment of the operating device, the communication unit may be a cable or a connector for a cable. Additionally and/or alternatively, the communication unit may also provide a wireless connection to an external device.

In an embodiment of the handling device the outer diameter of the insertion portion is 0.5-3 mm. The effective surface size of the sensor and/or the lens diameter (any of which may be configured in the vision head) may be larger than the maximum outer diameter of the operation device.

In an embodiment of the operation device, the inner diameter of the lumen is 0.1-0.3mm smaller than the outer diameter of the insertion portion.

In one embodiment of the operation device, the insertion portion comprises a sharpened distal end capable of piercing body tissue.

In one embodiment of the handling device, the insertion portion provides support and rigidity to the elongated connector when the elongated connector is received in the insertion portion.

In one embodiment of the operation device, the operation device is configured to be elongated long enough for operating the vision head to any position/direction in the cavity and to protrude from the body via a remote sealed channel.

Another aspect of the present invention provides a vision system for laparoscopy. The vision system includes a vision device having a vision head member and an elongated connector, an operating device, and an external device; the operating device has a hand-held operating part, an insertion part and a first joint element; the external device comprises means for communicating with the vision head member via the first connector element when the elongated connector is mounted in the lumen of the insertion portion.

The insertion portion of the operation device is configured to be extendable from the body cavity through the sealing channel, whereby the elongated connector is configured to be slidably mounted into the lumen of the insertion portion outside the body cavity, the elongated connector being retracted into the body cavity by means of the insertion portion.

Another aspect of the invention provides a method of installing a vision system including an operating device having an insertion portion and a first joint element and connectable with a vision device having a vision head member. The method of installation includes extending the distal end of the insertion portion from the body cavity through the sealed passageway. The sealed passage extends from an interior of the body cavity to an exterior of the body cavity. The inner diameter of the sealing channel is greater than the largest diameter of the vision head member. The method further includes coupling the ocular device to the operator and retracting the ocular device through the sealed passageway into the cavity.

In one embodiment of the method, the vision device is a rigid laparoscopic or laparoscopic camera.

In one embodiment of the method, the vision head component comprises at least one of a lens, a vision signal conductor, a digital signal conductor, a Printed Circuit Board (PCB).

In an embodiment of the method, the maximum diameter of the insertion portion is equal to or less than 3 mm.

In one embodiment of the method, the vision head component comprises at least one of a lens, an image sensor, and an illumination source.

In one embodiment of the method, further comprising: passing a sealing sleeve telescopically through the sealing passage into the lumen until adjacent the distal end of the insertion portion, the sleeve having a minimum inner diameter equal to or greater than the maximum diameter of the vision head member.

In one embodiment of the method, an extension of the distal end of the insertion portion passes through the sealing sleeve.

In one embodiment of the method, the vision head member is configured to connect to an elongated connector that is slidably mounted into the lumen of the insertion portion and that includes at least one PCB and/or at least one second tab element configured on a proximal end of the elongated connector.

In an embodiment of the method, the vision system further comprises a control unit and/or a display device connectable to the insertion portion.

In one embodiment of the method, the connecting of the visual device to the operating device comprises: slidably mounting a proximal end of the elongated connector into the lumen of the insertion portion and connecting the control unit and/or the display device to the insertion portion and/or the visualization device for direct communication with the at least one second connector element.

One aspect of the present invention provides an alternative manipulation device for laparoscopy. The operating device includes an elongated connector for conducting signals. The operation device has a distal end and a proximal end. Furthermore, the operating device comprises a hand-held operating part having a communication unit for communicating with an external device and a joint element for direct connection to the visual head. The hand-held operative portion is disposed at a proximal end of the insertion portion and the vision head member is detachable at a distal end of the insertion portion.

Additionally, the manipulator may include an additional rigid insertion portion that receives the elongated connector to support the elongated connector.

An aspect of the present invention provides an alternative vision system having a proximal end and a distal end. The vision system includes a handheld operating portion disposed at a proximal end of the vision system and a vision head member disposed at a distal end of the vision system. The system further includes an elongated connector configured for conducting digital signals between the vision head member and the handheld operating portion. The system also includes an external device comprising a device in communication with the vision head member via a first joint element arranged in the vision system.

The vision system may be mounted by extending a distal end of the vision system out of the body cavity through a sealed channel, thereby causing the vision head member to be detached from the first joint element at the distal end of the elongated connector. Alternatively, the elongated connector is pre-connected to the vision head member and the proximal end of the elongated connector is slidably connected to a first joint element juxtaposed to the hand-held operating portion.

In both cases, direct communication between the vision head member and the external device is facilitated by means of a connection, after which the vision head member is retracted into the cavity through a sealed passage.

It should be emphasized that the term "comprises/comprising" when used in this specification is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps, components or groups thereof.

Drawings

Some embodiments of the invention are described herein by way of example only and with reference to the accompanying drawings. With specific reference now to the drawings in detail, it is stressed that the particulars shown are by way of example and for purposes of illustrative discussion of the embodiments of the present invention. In this regard, it will be apparent to those skilled in the art from this description, taken in conjunction with the accompanying drawings, how embodiments of the present invention may be practiced.

In the drawings:

1A-D diagrammatically illustrate different configuration stages of a conceptual vision system, in accordance with embodiments of the invention;

FIG. 2 diagrammatically illustrates a first exemplary vision system, according to embodiments of the invention;

3A-C diagrammatically illustrate perspective and cross-sectional views of an exemplary laparoscopic insertion unit, in accordance with embodiments of the present invention;

4A-D illustrate different stages of configuration of the exemplary vision system of FIG. 2, in accordance with embodiments of the present invention;

FIG. 5 diagrammatically illustrates a second exemplary vision system, according to embodiments of the invention;

FIG. 6 diagrammatically illustrates a third exemplary vision system, according to embodiments of the invention;

FIG. 7 diagrammatically illustrates a fourth exemplary vision system, according to embodiments of the invention;

FIG. 8 diagrammatically shows a partial cross-sectional view of an exemplary laparoscopic insertion unit including an illumination reflector, in accordance with embodiments of the present invention;

FIG. 9 diagrammatically illustrates a partial cross-sectional view of an exemplary laparoscopic insertion unit including an illumination fiber, in accordance with embodiments of the present invention;

10A-B illustrate an exemplary embodiment of a visualization device having an elongated connector with a visualization head member at one end and a male connector at the other end;

FIG. 11 illustrates an exemplary embodiment of a steering device; and

fig. 12A-B illustrate an exemplary embodiment of the system before a vision device is slidably coupled to the effector.

Detailed Description

It is understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention. It should also be noted that, as used herein and in the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a lens" is a reference to one or more lenses and equivalents thereof known to those skilled in the art.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Embodiments of the present invention and various features and advantageous details of the invention are described more fully with reference to the non-limiting embodiments and examples described and/or illustrated in the accompanying drawings and detailed description that follow. It should be noted that the features illustrated in the drawings are not necessarily drawn to scale and features of one embodiment may be employed with other embodiments as would be known to one of ordinary skill in the art, even if not explicitly stated herein. Descriptions of well-known components and processing techniques may be omitted so as to not unnecessarily obscure the embodiments of the invention. The examples used herein are intended merely to facilitate an understanding of embodiments of the invention and to further enable those skilled in the art to practice the embodiments of the invention. Accordingly, the examples and embodiments herein should not be construed as limiting the scope of the invention, which is defined solely by the appended claims and applicable law. Moreover, it should be noted that like reference numerals refer to like parts throughout the several views of the drawings.

In some instances, the preferred embodiments may be described in the context of an exemplary laparoscopic imaging system for purposes of illustration and understanding. However, the present invention is not limited to the specifically described devices and systems, and may be adapted for various applications without departing from the overall scope of the invention.

In one aspect of certain embodiments of the present invention, there is provided a laparoscopic system capable of acquiring images in a body cavity of a patient during laparoscopic surgery, the laparoscopic system comprising a mini-laparoscopic sized elongated body (typically 3mm or less in diameter) detachably connected to a conventionally sized laparoscopic insertion unit or camera. After the first penetration into the body cavity using the elongated body at the selected entry point, the elongated body and the conventionally sized camera are connectable in the body cavity, leaving only minimal puncture/incision marks for the penetration and avoiding potential complications and/or hazards associated with conventionally sized trocar ports in conventional laparoscopic procedures. Because of the small diameter of the elongate body, the elongate body is more likely to be introduced at an access point through the anterior abdominal wall, which would otherwise be avoided based on clinical and aesthetic considerations (e.g., in conventional laparoscopic surgery). Although in laparoscopic surgery, the laparoscope is introduced through a large trocar, usually through an incision in the umbilicus, the laparoscopic system may advantageously be positioned in different locations. For example, in a cholecystectomy procedure, the camera may advantageously be positioned at the left upper abdomen of the abdominal cavity, whereas in a colon procedure, the camera may advantageously be positioned close to the incision in the upper abdomen. In addition to the advantages of forming a small size and (optionally) traceless access port, this displaced laparoscopic positioning frees up space in the main umbilical trocar to insert large size instruments (e.g., aspirators, forceps and staplers) into the body cavity.

Optionally, two or more cameras are introduced and mounted in the body cavity at different positions and/or orientations, optionally provided with at least one camera in addition to a conventional laparoscope arranged in the main trocar. The use of two or more cameras and/or laparoscopes (configured at a distance of a few centimeters from each other) can help to obtain high quality three-dimensional images (3 d image). In some embodiments, the at least two cameras are configured to be spaced apart by 7cm or more (considered as the minimum focal length of the human eye).

In some embodiments the present invention relates to a laparoscopic system configured for optional installation and/or wandering within a body cavity, which is then activated for monitoring a surgical procedure. After the surgical procedure is completed, the system may then be disassembled in/through the body cavity, and the components of the system may be removed. In some embodiments, the system comprises at least two components of differing size and/or shape that are delivered into the body cavity through different openings of the body cavity (optionally, surgical openings formed by pre-shaping or actually by frontal tip puncture). In some embodiments, the laparoscopic system comprises an elongated body capable of being removably connected to a conventionally sized camera head. In some embodiments, a first component or member of the laparoscopic system (e.g., the elongate body) is introduced into the lumen at an entry point, then extends out of the lumen and/or out of the patient's body at a second point, then attaches with a second component or member (e.g., the camera) and is retracted into the lumen. In some embodiments, the delivery and/or installation of the system components is monitored using a secondary vision system and/or by an optional camera of the laparoscopic system. The same camera may be first introduced into a patient's body cavity through a main wound (e.g., a wound/trocar at an umbilical location) to help select an entry point for the camera elongated body and monitor the penetration and entry of the elongated body; the same camera is then attached to the elongated body by first being pulled back from the body cavity and attached at the back side of the elongated body (e.g., outside of the patient's body).

In some embodiments, the system comprises a low profile member accessed through a first smaller opening (optionally 3mm or less in diameter) and a second wide profile member accessed through a second larger opening (optionally 5mm or more in diameter). In some embodiments, the laparoscopic system comprises an elongated hollow needle having an outer diameter equal to or less than 3mm, optionally configured for being pierced through a tissue layer (e.g., skin tissue and/or connective tissue) into the body cavity. In some embodiments, the hollow needle is rigid or semi-rigid.

In some embodiments, the laparoscopic system further comprises a camera, the camera comprising at least one of: an image sensor, a lens, and an illumination source. In an embodiment of the invention, the camera is sized to contain at least one medium or large image sensor, optionally a high definition image sensor, having a pixel size of at least 2.5 μm (optionally at least 4 μm pixels). The camera may allow high definition video or real-time projection on a large screen or television using selected DOF and contrast, thereby allowing high quality monitoring of the surgical procedure through the workgroup. In some embodiments, the camera has a diameter of 5mm or greater (optionally, between 8-10mm or greater). In some embodiments, the camera includes a lens (e.g., an objective lens, optionally in combination with more optical elements), optionally allowing a field of view of about 75 ° or more (optionally 90 ° or more, or higher, or lower, or intermediate). In some embodiments, the DOF is selected to cover the abdominal cavity. Preferably, the DOF may be 1cm-3 cm. In some embodiments of the invention, the camera further comprises at least one illumination source, optionally a plurality of illumination sources (optionally LED-type).

In some embodiments, the camera is capable of acquiring and/or recording at least one of the following images: video images, ultrasound images and/or infrared images (e.g., for the observation of tumors or masses in tissue or for the observation of blood tissue), optical coherence tomography images, labeled antibody images, or other images.

In some exemplary embodiments of the invention, the camera is configured to be connected (optionally at a rear end thereof) to an elongate connector having at least one tab configured on a free end thereof. The elongated connector may be designed to make an electrical connection directly between the camera head, which is located at any selected point in the body cavity and/or away from the wall of the body cavity, and a power source, which is arranged outside the body of the patient. Configuring the elongated connector to connect at least one illumination source with the external power source, the illumination source configured to have or be configured in the camera. Optionally, the elongate connector is slidably mounted in the hollow needle. In some embodiments, the elongated connector, once installed in the hollow needle, may facilitate connectability with an external device (e.g., a power source, an electrical signal device, an image signal device, a video receiver, or other device). Alternatively or additionally, the camera head may or may not include a mountable elongate connector, but the camera head may be wired or wirelessly connected to an external source or receiver.

In some embodiments, the system further comprises and/or is connectable to a camera control unit and/or a display device; the camera control unit and/or display means comprises means for communicating with at least one connector when the elongate connector is mounted in the needle.

The present invention also relates in some embodiments to a method of installing and/or configuring a vision device comprising an elongated body connectable to a wide vision head in a sealed cavity (optionally a body cavity), the method comprising: passing the distal end of the elongated body into the lumen through a first micro-puncture; configuring a closed channel penetrating through a second puncture hole, wherein the inner diameter of the closed channel is larger than the maximum diameter of the visual head; extending the distal end of the elongated body out of the lumen through the closed channel; attaching the vision head to the elongated body; and retracting the ocular device into the cavity.

In some embodiments, the vision head is configured to connect to an elongate connector that is slidably mounted to the channel (optionally the lumen) of the elongate body and comprises at least one PCB and/or at least one tab configured on a free end thereof. In some embodiments, the visualization device further comprises a control unit and/or a display device connectable to the elongated body and/or the visualization head.

Optionally, attaching the vision head to the elongated body comprises the steps of: slidably mounting a free end of the elongate connector in the channel of the elongate body; and connecting the control unit and/or display device to the elongated body and/or vision head for direct communication with at least one connector.

Referring now to the drawings, FIGS. 1A-D illustrate different stages of configuration of a conceptual vision system 1000, according to embodiments of the invention. The system 1000 is configured before being used in a body cavity (e.g., in an abdominal cavity CAV). The system 1000 may include any endoscope or laparoscope associated with a vision device (e.g., a rigid rod lens endoscope) that may be connected to a video recording camera located outside the body; or alternatively, the endoscope or laparoscope may be connected to an invasive camera unit adapted to record video images from the CAV.

The system 1000 includes an elongated body 1100, the elongated body 1100 including means for image acquisition and/or image transmission from an image source (e.g., illuminated internal organs) located in a body cavity CAV to an image receptor (not shown) located outside the body, which may be a human eye, a solid state sensor, a camera, a video display device, or other device. In some embodiments, the elongated body 1100 is particularly thin in size for currently known laparoscopes to cause minimal damage to body tissue when puncturing and/or manipulating through a wound or incision in tissue surrounding the abdominal cavity. The elongate body 1100 may have a maximum diameter equal to or less than 5mm, optionally the maximum diameter is equal to or less than 3mm, optionally the maximum diameter is equal to or less than 1.5mm, or the maximum diameter is higher or lower than or intermediate to an intermediate value.

In some embodiments, the system 1000 is fully operable only when engaged with a head 1200 detachably connected to a distal tip of the elongate body 1100. The head 1200 may include any function or element as appropriate and/or desired for operation of the system 1000, such as a camera, a lens, an illumination source, or any combination thereof. In some embodiments, it may be necessary to incorporate system components, such as system head 1200, that are substantially larger in size than the relevant dimensions of the elongated body 1100. In some exemplary embodiments, the maximum diameter of the system head 1200 is equal to or greater than 3mm, optionally equal to or greater than 5mm, optionally equal to or greater than 10mm, or higher or lower than or intermediate. In some embodiments, the head 1200 is configured to be transferable through a conventionally-sized laparoscopic trocar unit, such as trocar 100 (shown in fig. 1C), the trocar 100 having a minimum inner diameter equal to or greater than 5mm, optionally equal to or greater than 10 mm.

In fig. 1A, the system elongated body 1100 is positioned after insertion into the abdominal cavity CAV and prior to attachment of the system head 1200. Optionally, the trocar 100 may house a second vision unit (e.g., an endoscope (not shown)) that is operable to monitor at least a portion of the surgical procedure or only the stage of configuration of the vision system 1000 in the CAV. To attach the head 1200 to the distal end of the elongate body 1100, the surgeon needs to pass the elongate body 1100 through the lumen of the trocar 100 leading from the CAV to the extracorporeal environment (as shown in fig. 1B) and align the lens of the endoscope (or "toward the eye" thereof). The endoscope is withdrawn before or during the passage of the body 1100 through the lumen of the trocar 100. Next, as shown in fig. 1C, the head 1200 is attached (optionally, manually attached) to the body 1100. The complete vision system 1000 is then pulled back into the abdominal cavity CAV and the surgical procedure can begin. Alternatively, the system head 1200 may be used in place of an endoscope to monitor and assist in the selection of an entry point and the travel of the elongate body 1100 (which is connected to the system head 1200 outside of the patient's body) in or through the trocar 100.

In some embodiments, the trocar 100 incorporates a sealed two-way valve or other sealing mechanism (not shown) capable of allowing instruments to travel in both directions through the sealed two-way valve or other sealing mechanism without complete or significant loss of gas/air (typically but not necessarily CO 2) previously introduced into the abdominal cavity CAV. The trocar 100 may be of any preferred size and is typically between 3-20mm in diameter, alternatively about 10mm or 12mm in diameter (e.g., similar in size to a conventional laparoscopic wound). The trocar 100 may be sized (e.g., minimum cross-section) to: a large number of surgical tools in a particular kit may be accommodated.

In some embodiments, the elongate body 1100 comprises a distal tip. The elongate body 1100 tip may optionally be pointed and/or chamfered so as to allow for easier engagement of at least one tissue piercing hole with the head 1200. Optionally, the tip is a pneumoperitoneum needle (Veresneedle) that allows penetration through skin and abdominal wall tissue while preventing injury to the viscera (e.g., bowel) when not "defensive". Optionally, the elongated body 1100 includes interlocking means (threads or slots for snap-locking) at its distal tip for securely connecting with the head 1200 or alternatively, securely connects with the head 1200 using friction means, pressure means, or any other means known in the art.

As known to those skilled in the art, at least a portion of the device is made of a rigid or semi-rigid biocompatible material and may comprise a stainless steel ceramic material, optionally hardened or reinforced by a carbon coating or carbon fiber, a plastic/polymer material (e.g., Polyetheretherketone (PEEK)), a composite material (e.g., carbon epoxy), or any combination thereof.

Referring now to fig. 2, fig. 2 diagrammatically illustrates a first exemplary vision system 2000, in accordance with embodiments of the present invention. In some embodiments, the system 2000 generally comprises: operating means 2100, said operating means 2100 being similar in at least some respects to the previously described elongate body 1100; a laparoscopic insertion unit 2200, the laparoscopic insertion unit 2200 being detachably connected with the operating member 2100; and an external vision unit 2300, the external vision unit 2300 being connected with the operating part 2100 and/or the laparoscopic insertion unit 2200 through at least one wired or wireless connector (e.g., an image collecting cable 2130).

In some embodiments, the operating member 2100 includes an insertion portion 2110, optionally the insertion portion 2110 is rigid or semi-rigid in length and outer diameter, which facilitates manual operation within a body cavity, optionally the insertion portion 2110 allows advancement and/or orientation to any location within the associated body cavity. The insertion portion 2110 is connected to a hand-held operation portion 2120. In some embodiments, the insertion portion 2110 includes a pointed and/or chamfered distal tip. Alternatively or additionally, the insertion portion 2110 is configured for passage through a laparoscopic trocar. In some embodiments, the insertion portion 2110 is configured for enclosing and/or facilitating strength of an image capture device attached thereto. In some embodiments, the insertion portion 2110 includes an inner cavity having a minimum diameter and an opening at a distal end of the insertion portion 2110 that allows for insertion and for closure of a longitudinal insert, the opening having a maximum outer diameter that is equal to or less than the minimum diameter of the inner cavity.

In some embodiments, the maximum cross-sectional diameter of the insertion portion 2110 may be 0.5-5mm, optionally 1-2.5mm, optionally about 1mm, about 1.5mm, or about 2mm or higher or lower or intermediate values. In some embodiments, the insertion portion 2110 includes a lumen having an inner diameter that is 0.1-0.3mm smaller than its outer diameter. For example, the insertion portion 2110 may have an outer diameter of 2.2mm and an inner diameter of 2.05 mm. The length of the insertion portion 2110 may be between 15-50cm, and optionally the kit may comprise several lengths for each patient size, for example, a length of 20cm for infants, 27cm for middle size adults and 45cm for large size adults.

In some embodiments, the laparoscopic insertion unit 2200 is a rigid rod lens laparoscope. Alternatively, the laparoscopic insertion unit 2200 is a camera-type laparoscope, and optionally, the laparoscopic insertion unit 2200 includes a digital camera. In some embodiments, the laparoscopic insertion unit 2200 includes an image capture device 2210, the image capture device 2210 being coupled (optionally, detachably coupled) to the elongated connector 2220. In some embodiments, the image capture device 2210 includes at least one solid state sensor (e.g., a Charge Coupled Device (CCD) or a Complementary Metal Oxide Semiconductor (CMOS)), and optionally, the image capture device 2210 further includes at least one lens and/or other optical elements, and/or at least one illumination source or projector (e.g., a light-emitting diode (LED) illuminator). The elongated connector 2220 allows video signals and/or image signals and/or digital signals and/or electrical current and/or illumination to be transmitted along its length in at least one direction. In some embodiments, the elongated connector comprises at least one Printed Circuit Board (PCB) and/or an optical fiber and/or a communications cable. Optionally, the elongated connector 2220 is non-rigid and increases the mechanical life/strength of the elongated connector 2220 when enclosed in the insertion portion 2110. In some embodiments, the elongated connector 2220 includes a conductive contact at least at one end thereof. In some embodiments, the elongated connector 2220 comprises a jacket or sleeve (not shown) having an inner or outer diameter of between 0.5-2.5mm, for example, an inner diameter of 1.8mm and an outer diameter of 2mm, wherein the sleeve or sleeve should be capable of enclosing at least one elongated PCB and be mountable into the insertion portion 2110 having an inner diameter equal to 2mm or slightly larger than 2 mm.

In some embodiments, when properly installed in the operating member 2100, the laparoscopic insertion unit 2200 may be connected to an external vision unit 2300, optionally through the image acquisition cable 2130, allowing for control, display, recording and/or other functions to be performed from outside the patient's body. The external visual unit 2300 includes, in some embodiments, a camera control unit 2310 (CCU) and a display device 2320, and is (optionally) interconnectable with a communication cable 2330. In some embodiments, CCU2310 includes a signal processing device with image processing circuitry. The CCU2310 may be configured to generate a video signal based on the transmitted image signal and output the video signal to the display device 2320.

Referring now to fig. 3A-C, fig. 3A-C schematically illustrate perspective and cross-sectional views of an exemplary laparoscopic insertion unit 3000, in accordance with an embodiment of the present invention. As shown in fig. 3A, the laparoscopic insertion unit 3000 is similar to the unit 2200 described previously, including an exemplary image capture device or camera 3100 and an exemplary connector unit 3200. In an embodiment and as shown in fig. 3B (fig. 3B schematically shows a cross-sectional view of a distal portion of the laparoscopic insertion unit 3000), the exemplary camera 3100 comprises a housing 3110, a lens 3120 having at least one optical element, at least one LED3130 (two LEDs in this example), and an image sensor circuit 3140 (optionally comprising at least one CCD or CMOS sensor). In some embodiments, the lens 3120 allows a viewing angle or field of view of between 70 ° and 140 ° (optionally between 90 ° and 110 °), however, different camera and/or lens connections may be provided in the provided kit, which differ in viewing angle. In some embodiments, the camera 3100 has a field of view distance between 0.1 and 40cm (alternatively between 1 and 20 cm). In some embodiments, the camera 3100 further includes a passive or active cooling device (not shown) for the LED 3130.

In embodiments and as shown in fig. 3C, 3A and 3C (fig. 3C schematically shows a cross-sectional view of the connector unit 3200), the connector unit 3200 comprises a sleeve 3210 enclosing a longitudinal printed circuit board PCB, in this example a single image capturing PCB3220 and a two LED PCB 3230. Alternatively, at least one of the PCBs is substantially shorter, however other means (such as wires) used to transmit signals traverse the length of the connector unit 3200. The image capture PCB3220 is configured to: when properly contacted by sensor-PCB connector 3150 and image capture connector 3240, power and/or image signals and/or digital content are transferred from circuitry 3140 to an external CCU (not shown) and/or power source, and/or vice versa, from the external CCU and/or power source to circuitry 3140. Optionally, at least 10 sensor-PCB connectors 3150 are used (e.g., 14 connectors are used). The LED and PCB3230 is configured to: when properly contacted with each of the LED-PCB connector 3160 and the LED-power connector 3250, power from an external power source (not shown) is transmitted to the LED 3130. Alternatively, a power cord, which is a replacement for the PCB3230 of the LED and the connector 3160, is connected (e.g., soldered) to the LED3130 and passes over and along the image capture PCB3220 to the proximal end where it is connected to a short PCB connector. In a third alternative embodiment, the camera 3100 includes a power supply (not shown) for powering the LED3130 and/or the electrical circuitry 3140.

In some embodiments, the LED3130 projects illumination light towards a target object in a body cavity; the illumination light is then reflected back through the lens 3120 to be collected by the circuitry 3140 and captured as a digital image. The digital image is then transmitted via the image capture PCB3220 to an external CCU (not shown) located outside the body lumen.

Referring now to fig. 4A-D, fig. 4A-D illustrate various stages of configuration of an exemplary vision system 2000 (previously shown in fig. 2) in the body cavity CAV (optionally, the body cavity has been previously inflated), in accordance with embodiments of the present invention. In some embodiments, the operational component 2100 of the system 2000 is introduced shallowly into the CAV in order to avoid any unnecessary damage to the viscera. The working member 2100 may be pierced through a layer of tissue into a CAV or inserted through a pre-made incision or a specialized trocar (not shown). The laparoscopic trocar 2400 is also introduced into the CAV, (optionally, introduced through the umbilicus). In some embodiments, the trocar 2400 is configured to: allowing bi-directional travel therethrough from inside to outside and from outside to inside with minimal leakage of gas left in the CAV. The trocar 2400 includes or is configured to: allowing passage of the inner retractable sleeve 2450, the sleeve 2450 can be extended, oriented and manipulated into multiple positions in a CAV. A laparoscope 2500 is inserted through the trocar 2400 to allow the vision system 2000 to be configured for visualization. The laparoscope 2500 may be any type of laparoscope and may optionally include a laparoscope insertion unit 2200 that is used by other components of the system 2000 during later deployment.

As shown in fig. 4A, the laparoscope 2500 is used to scan the perimeter of a CAV for the distal tip of the operational component 2100. In fig. 4B, the telescoping sleeve 2450 (optionally with laparoscope 2500 enclosed therein) is then extended until it abuts or contacts the extended distal tip of the operative member 2100. Alternatively, the retractable sleeve 2450 extends towards a selection point located on the periphery of the CAV and pushes it outwards to visually show the entry point where the operating member 2100 can penetrate.

The inner diameter (e.g., lumen diameter) of the retractable sleeve 2450 can be about 3-15mm, or alternatively about 10 mm; and the outer diameter of the retractable sleeve 2450 can be about 4-20 mm. In some embodiments, additionally or alternatively, other positioning and/or guiding and/or clamping and/or connecting means (not shown) may also be used with respect to the retractable sleeve 2450 to position and/or guide and/or clamp the distal end of the operating member 2100 in a CAV and assist or for moving the distal end of the operating member 2100 through the trocar 2400 into an extracorporeal environment.

Once in direct contact, the operating member 2100 can be pushed into the retractable sleeve 2450 and through the retractable sleeve 2450 until extended out of the CAV and the patient's body, as shown in fig. 4C. When the operating member 2100 is pushed or before being introduced into the retractable sleeve 2450, the laparoscope 2500 is removed. Next, the laparoscopic insertion unit 2200 is introduced into the operating part 2100 to install the vision system 2000. As shown in fig. 4D, the system 2000 can then be retracted into the CAV and the trocar 2400 allowed to be selectively used to access elements through the trocar 2400 and to place the subsequent surgical procedure under visual monitoring.

Referring now to fig. 5, fig. 5 schematically illustrates a second exemplary vision system 4000, in accordance with an embodiment of the present invention. The system 4000 comprises an operating member 4100, which operating member 4100 comprises a rigid elongated connector 4110, a handheld operating part 4120 and an image acquisition cable 4130 connectable to an external visual unit (not shown). The system 4000 further includes a camera 4200 removably connectable to the elongated connector 4110. In some embodiments, the diameter of the camera 4200 is substantially larger than the diameter of the elongated connector 4110. In some embodiments, the camera 4200 is similar in design/operation to the previously described camera 3100, although the camera 4200 may vary in the type and method of connection between it and the elongated connector. The installation and/or operation of the system 4000 may be similar to the installation and/or operation of the system 2000.

Alternatively, the elongated connector 4110 may be housed in an insert portion for protection and/or added rigidity.

Referring now to fig. 6, fig. 6 diagrammatically illustrates a third exemplary vision system 5000 according to embodiments of the invention. The system 5000 is a rigid rod lens laparoscope, the system 5000 comprising a thin rigid laparoscope unit 5100; the laparoscopic unit 5100 includes: a rigid insert portion 5110, the insert portion 5110 selectively enclosing an image conductor (e.g., containing an optical carrier and lens); a hand-held operation portion 5120, the hand-held operation portion 5120 being selectively detachably connectable to the video camera 5140; and an image capturing cable 5130, the image capturing cable 5130 being connectable to an external vision unit (not shown). The system 5000 further includes a removably attachable illumination sleeve 5200, the illumination sleeve 5200 having a substantially larger diameter relative to a thin rigid laparoscopic unit 5100. In some embodiments, the illumination sleeve 5200 includes an inner cavity or aperture having a diameter substantially similar to an outer diameter of a distal portion of the insertion portion 5110, and the illumination sleeve 5200 is configured to be disposed on the distal portion of the insertion portion 5110. In some embodiments, the illumination sleeve 5200 is self-powered or powered by an external power source that can be connected via the rigid insertion portion 5110. The installation and/or operation of the system 5000 is similar to that of the system 2000.

Referring now to fig. 7, fig. 7 schematically illustrates a fourth exemplary vision system 6000, in accordance with an embodiment of the present invention. Similar to the system 5000, the system 6000 is also a rigid rod lens laparoscope, the system 6000 comprising an elongated rigid laparoscope unit 6100; the laparoscope unit 6100 includes: a rigid insert portion 6110, the rigid insert portion 6110 selectively enclosing a bundle of mapping wires and light wires (not shown); a handheld operation portion 6120, the handheld operation portion 6120 being selectively detachably connectable to the video camera 6150; an image acquisition cable 6130 connectable to an external vision system (not shown); and an illumination cable 6140 connectable to an external illumination source (not shown). The system 6000 further includes a detachably attachable distal rod lens 6200, the rod lens 6200 having a substantially larger diameter relative to the slim laparoscopic unit 6100. In some embodiments, the distal rod lens 6200 has a larger viewing angle than a rod lens of smaller diameter (e.g., a lens enclosed in the insertion portion 6110) and achieves. The installation and/or operation of the system 6000 is similar to that of the system 2000.

In some embodiments of the present invention, the laparoscopic insertion unit and/or the camera head may comprise at least one illumination source configured as an integral part or potentially an additional component. In some embodiments, for example to improve visualization and/or video quality parameters, it may be preferable to project more light to the target object, so larger illumination sources (e.g., LEDs) and/or a larger number of illumination sources may be delivered with the laparoscopic insertion unit. Alternatively, or additionally, it may be desirable to reduce/minimize the heat generated by the illumination source proximate to the lens/object and/or any temperature sensitive components. Alternatively, or additionally, it may be desirable to reduce/minimize the diameter of the unit, for example, so that the diameter of the unit is only slightly larger than the enclosed lens/object.

In some embodiments of the present invention, in accordance with any of the above considerations and/or any other considerations, there is provided a laparoscopic insertion unit (or camera) that includes one or more illumination sources located at a location remote from the lens/subject opening (optionally, remote from the rear). In some variations of this embodiment, the device may be configured to collect, reflect and/or project most or all of the light generated by the illumination source towards a particular target (optionally, in front of and/or radially away from the object/lens).

Referring now to fig. 8, fig. 8 diagrammatically illustrates a partial cross-sectional view of an exemplary laparoscopic insertion unit 7100, the laparoscopic insertion unit 7100 including an illumination reflector 7130 (shown in cross-sectional view), in accordance with embodiments of the present invention. The laparoscopic insertion unit 7100 includes a wide video camera body 7110 (shown in non-cutaway side view), which video camera body 7110 may enclose a lens/object, image sensor and electronics configured to connect with an elongated connector unit 7140 (partially shown). The distal end of the camera body 7110 has a smaller diameter portion 7112, and the smaller diameter portion 7112 connects to or surrounds the proximal end of the connector unit 7140. A plurality of illumination sources (although one may be sufficient) 7120 are disposed on the outer circumference of the smaller section 7112, and optionally, but not necessarily, the plurality of illumination sources 7120 do not exceed the maximum diameter of the main body 7110. The illumination source may be set to: pointing radially outward in the opposite direction (towards the connector unit 7140) or at any angle. In an exemplary embodiment, the illumination source is an LED light source that is electrically connected to a power source (not shown) disposed outside the patient's body via the connector unit 7140 and along its length. In some embodiments, the reflector 7130 is designed and shaped to: when configured, a majority of the light generated by the illumination source 7120 is reflected. In some embodiments, the reflector 7130 includes an inner surface 7132, the inner surface 7132 is made of or coated with a reflective material known in the art. The reflector 7130 is shaped to collect and/or concentrate scattered light originating from the plurality of illumination sources 7120 towards a selected target area. The reflector 7130 may be rigid, semi-rigid, or resilient; the reflector 7130 can be integrally formed or mounted, or the reflector 7130 can also comprise a plurality of components (e.g., a rainbow-like design comprising a plurality of rigid or semi-rigid members; not shown). In some embodiments, the reflector 7130 can expand and/or contract between a smaller diameter and a larger diameter. Illustratively, the smaller diameter may be smaller than, substantially equal to, or slightly larger than the diameter of the camera head body 7110, such that when in position inside a patient's body cavity, the smaller introduction size may be maintained and later selectively or predetermined, automatically, or on demand flared.

Fig. 9 diagrammatically shows a partial cross-sectional view of another exemplary laparoscopic insertion unit 7200, the laparoscopic insertion unit 7200 including an illumination fiber 7230, according to an embodiment of the present invention. Similar to the unit 7100, the laparoscopic insertion unit 7200 includes a wide camera body 7210, the camera body 7210 including a smaller sized distal portion 7212 and being coupled to an elongated connector unit 7240. A plurality of illumination sources 7220 are likewise positioned on the circumference of the smaller portion 7212. A plurality of optical fibers 7230 are disposed on the camera body 7210 in the longitudinal direction of the camera body 7210 instead of a reflection means, thereby allowing light to travel from the illumination source 7220 at the distal end toward the camera body 7210 in the forward direction. Multiple optical fibers may be used to transmit light from a single illumination source. The optical fiber may be placed over an inflatable member (not shown), thereby allowing light to be projected in a cone-like fashion.

Fig. 10A and 10B illustrate an exemplary camera unit and embodiment of a male connector 8100 having a self-illuminating vision head 8130 connected to an elongated inner rod 8120, the male connector 8100 being an elongated connector having a male connection portion 8110. The vision head 8130 has a camera unit 8140 and two illumination LEDs 8150. The male connector 8110 in this embodiment is a non-optical connector (e.g., a conductive connector for power, control, and information transfer). The use of a non-optical connector allows the inner elongate shaft 8120 to be small in cross-section and can therefore be advantageously used for scarless laparoscopic surgery.

Fig. 11 shows an exemplary operating member 8200 in which the rigid insertion portion is an outer rod 8210 (e.g., a needle). The rigid insertion portion is configured to provide rigid support for the elongated connector. The operating member 8200 further includes a hand-held operating portion such as a handle 8220. A female connector 8230 is located inside the handle 8220 to connect the camera to the male connector portion 8110 of the male connector 8100. In addition, the handle 8200 has a video control cable connector 8240 for connecting the vision head 8130 with an external vision unit (e.g., a screen). Alternatively, the handle 8220 may be equipped with a wireless communication unit for transmitting signals to an external visual unit instead of the video control cable connector 8240.

Fig. 12A and 12B illustrate an exemplary assembly 8300 of the camera and the male connector 8100 with an operational component 8200. The inner rod 8210 is pushed into the outer rod (e.g., needle) 8210 with the male connector 8110 until the male connector 8110 connects with the female connector 8230 inside the handle 8220. When connected, a majority of the inner rod 8120 is received within the outer rod 8210. Installation of the assembly 8300 is guided by the outer rod 8210 extending out of the body cavity through a sealed passageway, as previously described herein.

By way of non-limiting example, the exemplary embodiment shown in fig. 10-12 may have a vision head 8130 with a maximum outer diameter of 10mm and a maximum length of 60mm, while the maximum outer diameter of the outer rod 8210 is only 2.8 mm. The vision head 8130 (except for the two LEDs 8150) and the camera unit 8140 are assembled together (the camera unit 8140 is a state of the art high definition sensor). Each component of the mount 8300 is designed to be: cleaned and sterilized after each operation.

While the invention has been described in conjunction with specific embodiments, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. Accordingly, the present invention is intended to embrace all such alterations, modifications and variations that fall within the spirit and full scope of the appended claims.

All publications, patents and patent applications mentioned in this specification are herein incorporated in their entirety by reference into the specification, to the same extent as if each individual publication, patent or patent application was specifically and individually indicated to be incorporated herein by reference. In addition, citation or identification of any reference in this application shall not be construed as an admission that such reference is available as prior art to the present invention. For the section headings used, the headings should not be construed as necessarily limiting.

Claims (10)

1. A method of installing a vision system, the vision system comprising: an operating device having an insertion portion and a first joint element and connectable with a vision device having a vision head member and an elongated connector, the method comprising:

extending the distal end of the insertion portion, which has been inserted through a first point of a cavity wall and into the sealed cavity, out of the sealed cavity through a sealed passageway mounted at a second point of the cavity wall; the sealing channel extending from the interior of the cavity to the exterior of the cavity, the sealing channel having an inner diameter greater than the maximum diameter of the vision head member;

connecting the visual device to the operating device, the connecting comprising: slidably mounting the proximal end of the elongated connector into the inner lumen of the insertion portion as the distal end of the insertion portion extends from the lumen through the second point of the lumen wall; and

retracting the visual device into the cavity through the sealed channel mounted at a second point of the cavity wall.

2. The method of claim 1, wherein the vision device comprises a camera for recording video images, ultrasound images, or infrared images.

3. The method of claim 1, wherein the vision head component comprises at least one of a lens, a vision signal conductor, a digital signal conductor, a Printed Circuit Board (PCB).

4. The method according to claim 1, wherein the maximum outer diameter of the insertion portion is equal to or less than 3mm,

and wherein the vision head member has a diameter of at least 5 mm.

5. The method of claim 1, wherein the vision head component comprises an image sensor,

and wherein the image sensor has an active area size equal to or greater than the outer diameter of the elongated connector.

6. The method of claim 1, further comprising:

passing an inner retractable sleeve through the sealed passageway into the cavity until an end of the inner retractable sleeve is adjacent to the distal end of the insertion portion, the inner retractable sleeve having a minimum inner diameter equal to or greater than the maximum diameter of the vision head member.

7. The method of claim 6, wherein the distal end of the insertion portion extends through the inner retractable sleeve.

8. The method of claim 1, wherein the elongated connector comprises at least one PCB and/or at least one second tab element configured on a proximal end of the elongated connector.

9. The method of claim 8, wherein the vision system further comprises a control unit and/or a display device connectable to the insertion portion.

10. The method of claim 9, wherein the connection of the visual device to the operating device comprises:

connecting the control unit and/or the display device to the insertion portion and/or the visual device for direct communication with the at least one second joint element.