Endoscope, detachable endoscope shaft and endoscope assembly

Abstract

Some embodiments of the present disclosure relate to a removable endoscope shaft assembly including a removable endoscope shaft. In one embodiment, an endoscope assembly comprises: an endoscope housing comprising a distal connector, the distal connector comprising a first circuit configured to receive one or more image signals or to supply power from the endoscope housing; and a removable endoscope shaft, the removable endoscope shaft comprising: a distal section configured to be inserted into a patient's cavity; an attachment section, the attachment section being proximal to the distal section, the attachment section being configured to be removably coupled to an instrument or an adapter; and a proximal connector configured to be removably and electrically coupled to the distal connector, the proximal connector including a second circuit configured to be electrically coupled to the first circuit.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to U.S. Provisional Patent Application No. 63 / 256,390, filed on October 15, 2021, and entitled “DETACHABLE ENDOSCOPE SHAFTWITH IMAGE SENSOR,” the entire contents of which are incorporated herein by reference. Background Art

[0003] An endoscope is a tubular, lighted instrument with an eyepiece or camera that is used to view the inside of a body cavity during a procedure called endoscopy. During a medical procedure performed with an instrument inserted into a patient's body cavity, an endoscope can be used to visualize the medical instrument and the body cavity during the procedure. For example, an endoscope can be used to allow a physician to observe tissue or other material within a cavity or anatomical space of a patient while removing tissue from the cavity or anatomical space using suction forceps or grasping forceps.

[0004] In procedures that utilize a medical device in conjunction with an endoscope, the endoscope is typically a rigid or flexible tool that is manipulated separately from the medical device. During the procedure, the medical staff holds and guides the endoscope with one hand, and holds and guides the instrument used to treat the patient with the other hand. Depending on the anatomical space to be visualized, the doctor will use a rigid or flexible endoscope. For example, pulmonologists and gastroenterologists use flexible endoscopes, and orthopedic surgeons typically use rigid endoscopes, while otolaryngologists use rigid or flexible endoscopes depending on the surgical application. When an endoscope is used with other surgical instruments in a confined space, there is often interference between the endoscope and the instrument when attempting to manipulate within the same anatomical space. This is sometimes referred to as "sword fighting" and can make the surgical procedure more technically difficult and sometimes requires another incision or access port to overcome. This is particularly true during orthopedic arthroscopy or when operating at the back of the nasal cavity.

[0005] Current implementations of rigid endoscopes have significant limitations in visualization of patient cavities during procedures. Angled rigid scope visualization often distorts the surgeon's perspective and is cumbersome to use in conjunction with auxiliary instruments. Surgeons attempting to perform tasks in small cavities or areas that are difficult to reach with instruments are often hampered by the rigidity and viewing angles of the endoscope. This is particularly true when attempting to operate within the frontal and maxillary sinuses. In pediatric cases, there is often insufficient space to simultaneously insert multiple instruments into the nasal passages or sinus openings. Furthermore, during direct laryngoscopy procedures, the multiple instruments inserted into the lumen of the rigid laryngoscope make direct visualization of the endoscope, camera attachments, and surrounding instruments very difficult.

[0006] Similarly, current embodiments of flexible endoscopes also have their own set of problems. In some current flexible endoscope systems on the market, tools are advanced through tiny instrument channels incorporated within the length of the flexible endoscope. In such systems, the size of the tools is limited to the diameter of the endoscope channel, and thus greatly restricts the tool sizes and options available for endoscopic tissue manipulation. Attaching a conventional flexible endoscope externally to surgical instruments or devices is difficult because it is hard to stabilize the endoscope body, the endoscope hangs at the back of the instrument, and the endoscope is not easily connected or transferred from one instrument to another. Using currently available flexible endoscopes requires two hands: one hand to manipulate tip flexion while the other hand stabilizes the tip and the flexible shaft.

[0007] As described above, current embodiments of endoscopes have limitations regarding their use in conjunction with other instruments during procedures. Rigid endoscopes cannot bend to effectively visualize a patient's body cavity, while flexible endoscopes cannot be effectively stabilized or easily combined with other internally or externally applied instruments. In many cases, it may be difficult for an endoscope to visualize the grasping or removal of tissue, and in some hard-to-reach areas (such as the maxillary and frontal sinuses), such procedures are typically performed blindly, resulting in incomplete tissue removal.

[0008] To overcome some of these limitations in flexible and rigid endoscope designs and functions, U.S. Patent No. 10,512,391 introduced an improved flexible-rigid hybrid design for an endoscope that has instrument attachment capabilities for removably coupling and decoupling the endoscope to the proximal handle portion and / or distal tool portion of various different surgical instruments. However, in many surgical specialties, there is still a need for updated and simplified methods for attaching endoscopes to various surgical instruments. Summary of the Utility Model

[0009] This disclosure describes different attachment mechanisms for attaching an endoscope shaft to various instruments. The endoscope shaft can be permanently or temporarily modified in ways that allow for quick attachment to instruments (such as surgical tools) and are further detailed below. Additionally, various adapters are presented that will facilitate the attachment of the endoscope shaft to surgical instruments. Different instrument types and modifications that allow for endoscope attachment are also provided. Furthermore, various endoscope assemblies with detachable endoscope shafts are described herein.

[0010] There is a need for improved mechanisms for attaching different types of endoscopes to instruments. To this end, embodiments of this disclosure relate to endoscope shaft designs and attachment adapters that can be removably or permanently coupled to an endoscope or surgical instrument in various ways and configurations.

[0011] As described further below, the endoscope shaft attachment adapter can be advanced over the shaft of the endoscope and secured at the proximal end of the endoscope shaft (e.g., by connecting it to the distal end of the endoscope handle / endoscope head). The endoscope attachment "sleeve" adapter includes a rigid attachment segment that includes means for coupling the endoscope to the instrument at multiple longitudinal positions. The endoscope attachment adapter can also be configured such that the endoscope can be attached to the instrument at multiple different circumferential positions. For example, the endoscope attachment adapter can be configured to rotate about its longitudinal axis, and / or the endoscope attachment adapter can have attachment means circumferentially spaced about the rigid attachment segment.

[0012] Although the channel housing attachment mechanism described in U.S. Patent No. 10,512,391 is functional and generally adequate, it may allow excessive movement of the mirror within the channel due to the inherent play in the movement of the lever arm when it engages the mirror. Additionally, it may require an overly elongated channel to accommodate the mechanics and length of the side button and mirror engagement lever.

[0013] Originally described for use with a hybrid rigid / flexible endoscope, the ability to adapt a conventional rigid or flexible endoscope to work with the attachment mechanism described in U.S. Patent No. 10,512,391 would be advantageous. Existing disclosures show that the slotted / grooved rectangular proximal attachment portion of the endoscope shaft is a rigid extension of the endoscope housing. Endoscopes of conventional designs that do not incorporate such a proximal shaft attachment configuration typically have a smooth circumferential shaft, making it difficult to attach to instruments. Such conventional endoscopes would require an adapter sleeve to convert the smooth endoscope shaft into a shape and configuration that allows attachment to the instrument in a manner similar to that previously described. These attachment adapter sleeves can slide over the smooth endoscope shaft and be secured to the endoscope housing via a coupler. Different embodiments may require rigid, extensible, articulating, or flexible sleeve adapters.

[0014] When attaching the endoscope to a surgical device externally, the orientation of the image relative to the mirror and the instrument handle must be maintained or adjusted as needed to maintain an adequate user display orientation. If the user rotates the handle position, the image will rotate accordingly since the endoscope is secured to the instrument device. It is also beneficial to have the ability to mechanically rotate and redirect the image when the endoscope is secured to the surgical tool via the attachment mechanism described herein. Such an application would require the endoscope shaft (whether rigid, flexible, or hybrid) to rotate circumferentially within the sleeve adapter depending on the application.

[0015] The present disclosure also includes a scope shaft that is removably or permanently secured to the endoscope housing. Such an endoscope and endoscope shaft configuration can be disposable or remain reusable and will contain the necessary optical and mechanical configurations to allow instrument attachment and transmission of optical signals from the distal tip of the endoscope to the proximal endoscope housing. Removable shafts, sleeve adapters, or permanent shaft designs are also contemplated that are used to change the shape, angulation, or configuration of the scope shaft, converting a flexible scope shaft (or a portion thereof) to a more rigid scope shaft, or converting a flexible or hybrid shaft to an articulating shaft using a single or multiple articulating units. Articulating endoscopes produced as a result of an integrally manufactured unit or a removable articulating shaft or articulating sleeve adapter will allow for adjustable angulation of the endoscope housing away from the long axis of the endoscope shaft, such as required during direct surgical laryngoscopy. The design of the articulating shaft can also enable the scope to rotate within the lumen of the articulating shaft or adapter.

[0016] Endoscope shafts with custom shapes and contours may be useful when attaching an endoscope to various surgical instrument housings or devices. Such devices may include surgical coblation or plasma rods, inflatable balloons, electrocautery devices, lasers, cannulas, syringes, robotic tools, articulating forceps, articulating cannulas, ultrasound probes, surgical staplers, snares, and the like. The irregular shapes or contours of these instruments / housings may hinder the attachment of the endoscope shaft and the attached endoscope housing to the instrument, thereby interfering with the proper use, mechanics, or visual visualization of the instrument. Existing instruments whose shapes cannot adapt to the linear nature of the endoscope may need to be significantly redesigned.

[0017] Redesign costs may prevent instrument manufacturers from making the necessary design modifications to allow endoscope attachment. A channel adapter capable of receiving and securing an endoscope shaft proximally and / or distally could be clamped to such a device in a custom manner and would make this endeavor more feasible and cost-effective.

[0018] By using the endoscope attachment adapter described herein, various technical advantages can be achieved. First, the adapter can be used to retrofit an existing (rigid or flexible) endoscope with a rigid attachment segment. When retrofitted onto an endoscope, the adapter can provide an improved and simplified mechanism for removably coupling an endoscope to and detaching a variety of different instruments. For example, the adapter can be retrofitted onto an existing flexible endoscope to convert it into a flexible-rigid hybrid endoscope that has the advantages of a flexible distal shaft segment and a rigid proximal shaft segment with an instrument attachment mechanism.

[0019] The modified adapter can provide a variety of advantages for both doctors and patients. For example, by providing a quick, simplified, and reliable mechanism for removably coupling an endoscope to an instrument, the adapter can save time for both doctors and patients. In addition, the adapters described herein can be adapted to removably couple to a variety of different instrument types, which can provide additional cost savings and convenience. It can allow a doctor to use the endoscope with a variety of different instruments in a single-handed manner to facilitate patient procedures. The removable disposable endoscope and adapter shaft configuration will avoid the need for repeated sterilization, thereby improving the efficiency of the operating room and the case turnover rate. In some cases, this can eliminate the requirement for a second medical staff member to assist with the procedure and can allow for more office-based surgeries, which can reduce the cost of various procedures.

[0020] In addition, the adapter design and shaft configuration described herein can improve patient comfort by eliminating the need to simultaneously insert the endoscope and the instrument separately into a body orifice (e.g., the nose or throat). In addition, the adapter design can improve surgical access, visualization, and instrumentation within anatomically difficult-to-reach locations such as the nasopharynx, frontal sinus, anterior maxillary sinus, base of the tongue, orthopedic joint spaces, uterus, abdomen, bladder, etc.

[0021] In a further embodiment, the rigid attachment segment of the endoscope shaft or sleeve adapter can include an improved design for engaging the endoscope within the instrument channel.

[0022] In an even further embodiment, the rigid attachment segment of the shaft or sleeve adapter can be articulated, allowing for a change in the shape of the rigid shaft to accommodate the different shapes and contours of surgical instruments, without allowing flaccidity, which can destabilize the scope when attached to the instrument.

[0023] In an even further embodiment, a sleeve adapter is also described for providing aspiration and / or irrigation to the distal aspect of the endoscope tip or for facilitating attachment of the distal aspect (whether flexible or rigid) of the endoscope shaft to an instrument or instrument shaft.

[0024] In further embodiments, a disposable and / or removable rigid, flexible, or hybrid endoscope shaft can be inserted into an otherwise disposable or reusable endoscope housing or a rigid attachment segment extending from the housing. The disposable shaft can include various instrument channel connectors for attaching external instrument configurations to the distal or proximal endoscope shaft. In other embodiments, the removable endoscope shaft can include other adapter features described herein. For example, a suction or irrigation channel can be incorporated into the removable shaft. Some disposable shafts can be hinged, extendable, articulated, or irregularly contoured, among other features. Incorporating one or more adapter features into a disposable endoscope shaft to which instruments can be attached can eliminate the need for utilizing additional adapters.

[0025] In one embodiment, an endoscope includes: a housing including a light source and a circuit for receiving an image signal; a proximal attachment segment coupled to and extending from the housing, the proximal attachment segment being configured to be removably coupled to an instrument or adapter; and a detachable endoscope shaft configured to be optically, electrically, and mechanically coupled to a distal end of the proximal attachment segment such that the endoscope shaft receives light transmitted by the light source and transmits the image signal to the circuit.

[0026] In some embodiments, the interior of the distal end of the proximal attachment segment includes: a first lighting coupling, which is used to optically couple the second lighting coupling of the detachable endoscope shaft to the light source; and one or more first electrical contacts; and the proximal end of the detachable endoscope shaft includes an endoscope connector segment, which includes: the second lighting coupling; and an image module connector, which includes one or more second electrical contacts, which are configured to contact the one or more first electrical contacts to form an electrical connection between the circuit of the housing and the detachable endoscope shaft.

[0027] In some embodiments, the distal end of the proximal attachment segment further comprises a receiving portion; and the endoscope connector segment further comprises: a mechanical connector configured to achieve a snap connection with the receiving portion.

[0028] In some embodiments, the distal end of the detachable endoscope shaft includes an image sensor electrically coupled to the one or more second electrical contacts.

[0029] In some embodiments, the proximal attachment segment is a rigid attachment segment, the surface of the rigid attachment segment comprising a groove and a section adjacent to the groove, the section protruding relative to the groove and comprising a concave notch or protrusion.

[0030] In some embodiments, the proximal attachment segment is a rigid attachment segment, and the surface of the rigid attachment segment includes a plurality of grooves and a plurality of segments that alternate along the longitudinal length of the rigid attachment segment; each of the segments projects relative to the grooves and includes a recessed notch or protrusion; and the plurality of segments and the plurality of grooves are configured such that the instrument or the adapter can be coupled to the endoscope at a plurality of longitudinal positions.

[0031] In some embodiments, the rigid attachment segment is fixed to the housing.

[0032] In some embodiments, the rigid attachment segment is removably coupled to the housing via an adapter.

[0033] In some embodiments, the rigid attachment segment is capable of rotating about its longitudinal axis.

[0034] In one embodiment, a detachable endoscope shaft includes: a distal end that includes an image sensor; and a proximal end that includes an endoscope connector segment configured to removably, mechanically, electrically, and optically couple the endoscope shaft to an endoscope housing, the endoscope connector segment including: an illumination coupler configured to optically couple the detachable endoscope shaft to a light source of the endoscope housing; and an image module connector that includes one or more first electrical contacts electrically coupled to the image sensor, the one or more first electrical contacts being configured to contact one or more second electrical contacts to form an electrical connection between a circuit of the endoscope housing and the detachable endoscope shaft.

[0035] In some embodiments, the detachable endoscope shaft further includes an illumination channel that begins at the illumination coupler and ends at an opening at the distal end of the endoscope shaft, the opening at the distal end being adapted to emit light to illuminate a sample, and the image sensor being adapted to collect light reflected by the sample.

[0036] In some embodiments, the detachable endoscope shaft further includes an attachment segment that is distal to the endoscope connector segment, the attachment segment being configured to be removably coupled to an instrument or an adapter.

[0037] In some embodiments, the attachment segment is a rigid attachment segment, and the surface of the rigid attachment segment includes grooves and segments adjacent to the grooves, the segments projecting relative to the grooves and including a recessed notch or protrusion.

[0038] In some embodiments, the attachment segment is a rigid attachment segment, the surface of the rigid attachment segment comprising a plurality of grooves and a plurality of segments alternating along the longitudinal length of the rigid attachment segment; each of the segments protrudes relative to the grooves and comprises a recessed notch or protrusion; and the plurality of segments and the plurality of grooves are configured to enable the instrument or the adapter to be coupled to the endoscope at a plurality of longitudinal positions.

[0039] In some embodiments, the endoscope connector segment further comprises a mechanical connector configured to achieve a snap-fit connection.

[0040] In some embodiments, the mechanical connector includes a circumferential groove that allows for a snap-fit connection to the receiving portion.

[0041] In some embodiments, the mechanical connector comprises an elongated rectangular protrusion along a surface of the endoscope connector segment.

[0042] In one embodiment, an endoscope assembly includes: an endoscope housing, the endoscope housing including a distal connector, the distal connector including a first circuit, the first circuit being configured to receive one or more image signals or supply power from the endoscope housing; and a detachable endoscope shaft, the detachable endoscope shaft including: a distal segment, the distal segment being configured to be inserted into a patient cavity; an attachment segment, the attachment segment being proximal to the distal segment, the attachment segment being configured to be removably coupled to an instrument or adapter; and a proximal connector, the proximal connector being configured to be removably and electrically coupled to the distal connector, the proximal connector including a second circuit configured to be electrically coupled to the first circuit.

[0043] In some embodiments, the detachable endoscope shaft further comprises one or more image sensors configured to generate the one or more image signals; the second circuit is configured to transmit the one or more image signals to the first circuit; and the first circuit is configured to receive the one or more image signals.

[0044] In some embodiments, the one or more image signals include a first image signal and a second image signal; the one or more image sensors include a first image sensor for generating the first image signal and a second image sensor for generating the second image signal; the first circuit includes one or more first electrical contacts for receiving the first image signal and one or more second electrical contacts for receiving the second image signal; the second circuit includes one or more third electrical contacts for transmitting the first image signal and one or more fourth electrical contacts for transmitting the second image signal; the one or more first electrical contacts and the one or more third electrical contacts are removably coupled; and the one or more second electrical contacts and the one or more fourth electrical contacts are removably coupled.

[0045] In some embodiments, the first circuit includes a first set and a second set of opposing electrical contacts, and the second circuit includes a third set of electrical contacts configured to slidably connect between the first set and the second set of opposing electrical contacts.

[0046] In some embodiments, the endoscope housing further includes a light source; and the distal connector further includes an illumination coupler to optically couple the light source to the detachable endoscope shaft via the proximal connector.

[0047] In some embodiments, the distal connector further includes a groove or a protrusion to mechanically couple the distal connector to the proximal connector.

[0048] In some embodiments, the endoscope assembly further includes a sleeve adapter removably coupled to the detachable endoscope shaft, the sleeve adapter including: a proximal connector coupled to the attachment segment; and a cannula extending distally from the proximal connector, through which the distal segment slides when the sleeve adapter is removably coupled to the detachable endoscope shaft.

[0049] In some embodiments, the cannula of the sleeve adapter is stiffer than the distal segment and is configured to assist in guiding the detachable endoscope shaft.

[0050] In some embodiments, the sleeve adapter further includes a suction or irrigation port coupled to the interior of the cannula.

[0051] In some embodiments, the attachment segment includes a first repeating feature for coupling to the instrument in one or more longitudinal positions; and the sleeve adapter further includes a second repeating feature for coupling to the instrument in one or more additional longitudinal positions.

[0052] In some embodiments, the distal segment includes one or more light sources; and when the first circuit is electrically coupled to the second circuit, the first circuit is configured to supply power from the endoscope housing to the detachable endoscope shaft to power the one or more light sources.

[0053] In some embodiments, the first circuit is configured to both receive one or more image signals and supply power from the endoscope housing to the detachable endoscope shaft to power one or more components of the detachable endoscope shaft.

[0054] In one embodiment, a detachable endoscope shaft includes a distal segment configured to be inserted into a patient cavity; an attachment segment proximal to the distal segment, the attachment segment configured to be removably coupled to an instrument or adapter; and a proximal connector configured to be removably and electrically coupled to a distal connector of an endoscope housing, the proximal connector including a first circuit configured to be electrically coupled to a second circuit of the endoscope housing to receive power from the endoscope housing and / or transmit one or more image signals to the endoscope housing.

[0055] Other features and aspects of the disclosed technology will become apparent from the following detailed description in conjunction with the accompanying drawings, which illustrate features according to embodiments of the disclosed technology by way of example. This summary is not intended to limit the scope of any utility model described herein, which is defined by the claims and equivalents.

[0056] It should be appreciated that all combinations of the above concepts (provided that these concepts are not mutually inconsistent) are considered to be part of the inventive subject matter disclosed herein. In particular, all combinations of the claimed subject matter appearing at the end of this disclosure are considered to be part of the inventive subject matter disclosed herein. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] The present disclosure according to one or more embodiments will be described in detail with reference to the following figures. These figures are provided for illustration purposes only and only depict example embodiments. In addition, it should be noted that for clarity and ease of illustration, the elements in the figures are not necessarily drawn to scale.

[0058] Some of the figures included herein illustrate various embodiments of the disclosed technology from different viewing angles. Although the accompanying descriptive text may refer to views such as "top view," "bottom view," or "side view," these references are merely descriptive and do not imply or require that the disclosed technology be implemented or used in a specific spatial orientation unless expressly stated otherwise.

[0059] Figure 1A A side view of an endoscopic attachment adapter according to some embodiments of the present disclosure is shown.

[0060] Figure 1B Shown is Figure 1A a perspective view of the endoscopic attachment adapter.

[0061] Figure 1C Shown is Figure 1A an exploded perspective view of the endoscopic attachment adapter.

[0062] Figure 1D Shown is Figure 1A a cross-sectional view of the endoscopic attachment adapter.

[0063] Figure 2A A side view of another endoscopic attachment adapter according to some embodiments of the present disclosure is illustrated.

[0064] Figure 2B Shown is Figure 2A a perspective view of the endoscopic attachment adapter.

[0065] Figure 3A An endoscope according to some embodiments of the present disclosure that can be coupled to an endoscopic adapter is shown, where the endoscopic adapter is not coupled to the endoscope.

[0066] Figure 3B Shown is Figure 3A the endoscope with the endoscopic adapter coupled thereto.

[0067] Figure 4 An endoscopic attachment adapter according to some embodiments of the present disclosure that is removably coupled to an endoscope with a flexible shaft is shown.

[0068] Figure 5 A fixed endoscopic attachment adapter according to some embodiments of the present disclosure is shown.

[0069] Figure 6 Another fixed endoscopic attachment adapter according to some embodiments of the present disclosure is shown.

[0070] Figure 7A A device housing to which an endoscopic attachment adapter according to some embodiments of the present disclosure can be removably coupled is shown.

[0071] Figure 7B Shown is a Figure 7A device housing of a rigid attachment segment removably coupled to the adapter.

[0072] Figure 8AShows an H-channel adapter according to some embodiments of the present disclosure, which can be removably coupled to an endoscopic shaft, an endoscopic attachment adapter, and / or an attachment segment of an endoscopic instrument tool.

[0073] Figure 8B Shows the Figure 8A H-channel adapter attached to the distal end of the endoscopic attachment adapter.

[0074] Figure 9A Shows an endoscope coupled to an instrument via an H-channel adapter according to some embodiments of the present disclosure.

[0075] Figure 9B Shows an endoscope coupled to an instrument and an instrument shaft according to some embodiments of the present disclosure.

[0076] Figure 10A Shows a perspective view of an H-channel adapter according to some embodiments of the present disclosure, which can be removably coupled to an endoscopic attachment adapter and an endoscopic instrument tool.

[0077] Figure 10B Shows the Figure 10A side view of the H-channel adapter.

[0078] Figure 11 Shows a side view of a component including the Figure 10A H-channel adapter according to some embodiments of the present disclosure, which is removably coupled to an endoscope and a forceps instrument.

[0079] Figure 12 Shows a part of an endoscopic shaft or an endoscopic attachment adapter according to some embodiments of the present disclosure, which is rectangular and includes a hinge joint.

[0080] Figure 13 Shows a part of an endoscopic shaft or an endoscopic attachment adapter according to some embodiments of the present disclosure, which includes a ball-and-socket hinge.

[0081] Figure 14A Shows a perspective view of another endoscopic attachment adapter according to some embodiments of the present disclosure.

[0082] Figure 14B Shows the Figure 14A perspective view of the endoscopic attachment adapter.

[0083] Figure 14C Shows the Figure 14B cross-sectional view of the endoscopic attachment adapter.

[0084] Figure 15AA perspective view of an endoscopic attachment adapter with an integrated cannula according to some embodiments of the present disclosure is shown, and the integrated cannula can be used to flush or clean the tip of an endoscope.

[0085] Figure 15B is shown Figure 15A A cross-sectional view of the endoscopic attachment adapter.

[0086] Figure 16A A perspective view of an endoscope according to some embodiments of the present disclosure is shown, and the endoscope includes a detachable endoscope shaft coupled to a rigid attachment segment.

[0087] Figure 16B is shown Figure 16A A front view of the endoscope.

[0088] Figure 16C is shown Figure 16A A side view of the endoscope.

[0089] Figure 16D is shown Figure 16A A side view of the endoscope, wherein the detachable endoscope shaft is separated from the rigid attachment segment of the endoscope.

[0090] Figure 17A A perspective view of a detachable endoscope shaft according to some embodiments of the present disclosure is shown.

[0091] Figure 17B is shown Figure 17A Multiple side views of the detachable endoscope shaft.

[0092] Figure 17C is shown Figure 17A A top view of the endoscopic connector segment of the detachable endoscope shaft.

[0093] Figure 17D is shown Figure 17A A perspective view of the endoscopic connector segment of the detachable endoscope shaft.

[0094] Figure 17E is shown Figure 17A A side view of the endoscopic connector segment of the detachable endoscope shaft.

[0095] Figure 17F is shown Figure 17A A front view of the endoscopic connector segment of the detachable endoscope shaft.

[0096] Figure 18 An enlarged cross-sectional view of the mating connection between the endoscopic connector segment of the detachable endoscope shaft and the distal end of the proximal attachment segment of the endoscope according to some embodiments of the present utility model is shown.

[0097] Figure 19A Illustrated is an electrical coupling between a detachable endoscope shaft and a proximal attachment section / endoscope housing using internal sliding contacts according to some embodiments of the present disclosure.

[0098] Figure 19B Illustrated is an electrical coupling between a detachable endoscope shaft and a proximal attachment section / endoscope housing using internal sliding contacts according to some embodiments of the present disclosure.

[0099] Figure 20A Illustrated is an electrical coupling between a detachable endoscope shaft and a proximal attachment section / endoscope housing using internal compression contacts according to some embodiments of the present disclosure.

[0100] Figure 20B Illustrated is an electrical coupling between a detachable endoscope shaft and a proximal attachment section / endoscope housing using internal compression contacts according to some embodiments of the present disclosure.

[0101] Figure 21A A side view of an endoscope according to some embodiments of the present disclosure is shown, the endoscope including an endoscope housing and a detachable endoscope shaft configured to be removably coupled.

[0102] Figure 21B Shown after the endoscope housing and the detachable endoscope shaft are removably coupled Figure 21A endoscope.

[0103] Figure 21C Shown Figure 21A Perspective view of an endoscope housing and a connector segment of a detachable endoscope shaft.

[0104] Figure 21D Shown Figure 21A Another perspective view of an endoscope housing and a connector segment of a detachable endoscope shaft.

[0105] Figure 22A A removable endoscope shaft assembly including an endoscope housing, a detachable endoscope shaft, and a sleeve adapter is shown according to some embodiments of the present disclosure.

[0106] Figure 22B Shown after the endoscope housing, detachable endoscope shaft and sleeve adapter are coupled together Figure 22A Removable endoscope shaft assembly.

[0107] Figure 23A An irrigation or aspiration sleeve adapter removably coupled to a detachable endoscope shaft is shown in accordance with some embodiments of the present invention.

[0108] Figure 23B is shown in which it is removably coupled toFigure 23A after the detachable endoscope shaft Figure 23A a flushing or aspiration sleeve adapter

[0109] Figure 24 Depicts an attachment segment extension adapter removably coupled to a detachable endoscope shaft according to some embodiments of the present disclosure.

[0110] The drawings are not exhaustive and do not limit the present disclosure to the precise forms disclosed. Detailed Description

[0111] Figures 1A - 1D Depicts an endoscope attachment adapter 100 according to an embodiment of the present disclosure. Figure 1A Illustrates a side view of the adapter 100, Figure 1B illustrates a perspective view of the adapter 100, Figure 1C illustrates an exploded perspective view of the adapter 100, and Figure 1D illustrates a cross-sectional view of the adapter 100. The adapter 100 includes a stationary coupler 110, a rotatable joint 120, and a rigid attachment segment 130.

[0112] At the proximal end of the adapter 100 is an opening 111 through the connector 110. At the distal end of the adapter 100 is an opening 141. The opening 141 may begin at the distal end of the rigid attachment segment 130. From the opening 111 to the opening 141 is a passageway 175 extending through the coupler 110 and the rigid attachment segment 130. The shaft of the endoscope can be passed through the passageway 175, starting at the opening 111 and moving through the opening 141. Once the endoscope shaft has been passed through the passageway of the adapter 100, the adapter 100 can be secured at the proximal end of the endoscope shaft by removably coupling the adapter connector 110 (e.g., coupling to an endoscope connector). The two connectors can be secured via one or more suitable coupling mechanisms, which include a twist-lock mechanism, an interference fit, a suction fit, a magnetic mechanism, and / or some other mechanism. Although in this example, the coupler 110 is illustrated as a female coupler configured to connect to a male coupler (e.g., at the proximal end of the endoscope shaft), in other embodiments, the coupler 110 can be a male coupler configured to connect to a female coupler (e.g., at the proximal end of the endoscope shaft).

[0113] In this example, the rigid attachment segment 130 is quadrilateral, having a square cross-section. In other embodiments, the rigid attachment segment 130 may have a different rectangular, circular, or other geometric cross-section. Formed on one of the four sides of the segment 130 are a plurality of grooves / slots 133 and a plurality of segments 131 protruding from the grooves 133, each of the segments 131 having a recessed notch or cavity 132. In this example, the plurality of grooves 133 and the plurality of segments 131 alternate along the longitudinal length of the segment 130. As described further below, at least one groove 133 and at least one segment 131 (e.g., a groove 133 adjacent to a segment 131) can be used to couple the adapter 100 to the channel of an instrument at a specific longitudinal position. In this manner, an endoscope with a secure adapter 100 can be coupled to the channel of an instrument at a specific longitudinal position. The number of grooves 133 and the number of segments 131 can depend on the desired amount of longitudinal adjustment required to couple the adapter 100 to the instrument, as well as the increment of each longitudinal adjustment. The number of grooves 133 and the number of segments 131 may also depend on the width of each groove 133 and the width of each segment 131. In some embodiments, the rigid attachment segment 130 may have 1 to 30 grooves 133 and 1 to 30 segments 131. In some embodiments, to provide a more secure connection between the endoscope shaft (with the adapter) and the instrument, multiple grooves 133 and multiple segments 131 may be used to connect to the instrument. Although the grooves 133 and segments 131 are formed on only one side of the segment 130 in this example, in other embodiments described further below, they may be formed on two sides, three sides, or all four sides.

[0114] In alternative embodiments, the rigid attachment segment 130 can utilize some other suitable rigid attachment mechanism capable of attaching the endoscope with the adapter to the instrument. For example, the adapter can utilize a magnetic attachment mechanism, a snap on attachment mechanism, a top-down ratchet mechanism, an insertion ratchet mechanism, and / or an insertion twist mechanism, as further described in U.S. Patent No. 10,512,391 (which is incorporated herein by reference in its entirety). It should be noted that the present disclosure is not limited to the particular attachment mechanism described and illustrated herein, and other mechanisms for removably coupling a flexible-rigid endoscope to an instrument are contemplated.

[0115] like Figures 1B - 1CAs depicted, the rotatable joint 120 positioned between the rigid attachment segment 130 and the coupler 110 enables the adapter 100 to rotate about its longitudinal axis (e.g., rotation of the rigid attachment segment 130 relative to the coupler 110). In this manner, the endoscope can be removably coupled to the instrument via the rigid attachment segment 130 at multiple different circumferential positions. Additionally, after coupling, the instrument can be rotated relative to the endoscope, thereby allowing adjustment of the endoscope image. The rotatable joint 120 can be configured to rotate continuously 360 degrees or in step-degree increments. For example, depending on the desired number of possible circumferential position adjustments, it can be configured to rotate in step increments of 10°, 15°, 20°, 30°, 40°, 45°, 60°, 72°, 90°, 120°, or 180°.

[0116] In this example, a twist-type male / female attachment mechanism is used to secure the coupler 110 to the endoscope housing. The locking screw 140 is used to secure the female coupler 110 to the male coupler of the endoscope housing (e.g., Figure 3A , 520). For example, the locking screw 140 can engage a groove in the male coupler. The rotatable circular joint 120 is fused to the rigid attachment segment 130. The rotatable joint engages the coupler 110 through the circular extension 144 of the rigid attachment segment 130 and a connector channel 175 passing through its center. A small circumferential lip 145 on the proximal end of the circular extension 144 engages a wider circumferential lip 146 within the distal opening of the coupler housing in a manner that allows rotational movement of the joint. The circular rotatable joint 120 includes a series of small circular holes 143 disposed along the perimeter of its inner surface. The angular position of the rotatable joint is stabilized by a small piece 142 that is pressed into the hole 143 by a spring 141, which is contained within a channel 147 located within the coupler housing 110. When the coupler is secured to the endoscope, a forceful rotation of the attachment segment relative to the coupler causes the piece to compress the spring as it moves out of the hole it occupies. As the rotation continues, the compressed spring pushes the piece into the next hole, thereby stabilizing its new position.

[0117] Figures 2A - 2B Another example endoscope attachment adapter 200 according to an embodiment of the present disclosure is illustrated. Figure 2A A side view of the adapter 200 is illustrated, Figure 2BA perspective view of an adapter 200 is shown. The adapter 200 includes a stationary coupler 210, a rotatable joint 220, a rigid attachment segment 230, and a distal segment 240. The distal segment 240 can vary in length and can be rigid or flexible. In this example, after the attachment adapter is coupled to the endoscope (e.g., by passing the endoscope through a channel extending through the coupler 210, the joint 220, the rigid attachment segment 230, and the distal segment 240), the inclusion of the additional distal segment 240 can help further stabilize the endoscope and the attachment adapter. This can be particularly advantageous when threading the adapter through a flexible endoscope. For example, by varying the length of the distal segment 240 and the rigid attachment segment 230, a flexible endoscope can be converted into a rigid endoscope or a hybrid endoscope having rigid or flexible segments of varying lengths. In some embodiments, the distal section 240 can incorporate a circular notch or other means by which other sleeve adapters further distal to the distal section 240 can be secured. Such other adapters can include, but are not limited to, flexible or rigid sleeve adapters that incorporate suction / irrigation capabilities and / or sleeve adapters with attached channels, tubes, magnets, clamp(s), suction cup(s), "zipper" mechanisms, or other mechanisms for securing the distal end of the endoscope and sleeve adapter to an instrument shaft or device.

[0118] As can be seen from the above examples, the adapter can use any suitable mechanism that can be actuated to lock the adapter to the endoscope housing (e.g., screws, slidable controls, depressible controls, magnetism, torsion spring tension, etc.).

[0119] Figures 3A - 3B An endoscope 500 is depicted to which an endoscope adapter may be coupled in accordance with an embodiment of the present disclosure. The endoscope 500 includes a shaft 510, a connector 520 adjacent a proximal end of the shaft 510, and an endoscope head and / or handle 530 adjacent the connector 520. The shaft 510 may be rigid, flexible (e.g., bendable), removable, disposable, or it may be partially rigid, flexible, or malleable (a hybrid). Figure 3B As shown, the shaft 510 can be passed through the channel of the adapter 200 and the connector 210 of the adapter 200 can be secured to the connector 520 of the endoscope 500. Figure 3B 500, it should be understood that any of the aforementioned adapters (e.g., 100, 200, etc.) can be removably coupled to the endoscope 500. It should be further understood that any of the aforementioned adapters can include a rotatable joint, or alternatively be attached to the endoscope in a fixed manner that cannot be manually rotated along its longitudinal axis.

[0120] In some embodiments, the endoscope shaft (flexible, rigid, or hybrid) itself can be detachable and reattached from the endoscope head or rigid attachment segment. Such a removable shaft can be capable of receiving an adapter coupler as described herein, or can alternatively already have an adapter configuration 200 as part of its shaft structure. Removable shaft configurations of varying sizes, shapes, profiles, stiffnesses, and lengths of attachment segments with instrument attachment capabilities will allow for custom configurations of single-use, disposable sterile shafts and instrument attachments, depending on the surgical application.

[0121] Once the adapter 200 is secured to the endoscope 500 (e.g., Figure 3B ), the endoscope 500 can be removably coupled to a channel of an instrument (discussed further below) at a plurality of different longitudinal positions via the rigid attachment section 230 and / or at a plurality of different circumferential positions via the rotatable joint 220. Although in this example, the adapter 200 includes a rotatable joint for manually rotating the endoscope for image orientation and / or positioning, alternative embodiments described below describe adapters without a rotatable joint that may instead rely on digital image rotation.

[0122] Figure 4 An endoscope attachment adapter 650 is depicted removably coupled to an endoscope 600 with a flexible shaft 610. In this example, an angled distal portion 640 of the adapter 650 causes the endoscope shaft 610 to bend 90 degrees after the adapter 650 is coupled to the endoscope. In other embodiments, the endoscope shaft can exhibit multiple bends.

[0123] As described above, in some embodiments, the endoscope attachment adapter can be configured to be fixed in place, rather than being able to rotate about its longitudinal axis. In this case, the adapter may not include a rotatable joint (e.g., rotatable joint 120). Figure 5 One such example of a fixed endoscope attachment adapter 900 is depicted. In adapter 900, the rigid attachment segment is quadrilateral, having a square cross-section. In contrast to rigid attachment segment 130, the attachment mechanism is formed on multiple sides (e.g., two, three, or all four sides) of the rigid attachment segment of adapter 900. That is, a plurality of grooves 933 and a plurality of segments 931 are formed on each of the multiple sides of the rigid attachment segment, each of the segments 931 having a recessed notch or aperture 932. Thus, even though adapter 900 is not rotatable about a rotatable joint, it can still be used to couple an endoscope to an instrument channel at multiple circumferential positions due to the attachment segments being formed on the rigid attachment segment.

[0124] Figure 6Depicts another example of a fixed endoscope attachment adapter 1000. As depicted, the adapter 1000 includes a connector 1010, a rigid attachment segment 1020, and a distal segment 1030. In some embodiments, the distal segment 1030 may be omitted. In the adapter 1000, the rigid attachment segment 1020 is quadrilateral with a square cross-section. In contrast to the rigid attachment segment 1030, attachment mechanisms are formed on multiple sides (e.g., two sides, three sides, or all four sides) of the rigid attachment segment 1020. That is, a plurality of grooves 1023 and a plurality of segments 1022 are formed on each of the multiple sides of the segment 1020, and each of the segments 1022 has a recessed notch or cavity 1021. In some cases, the segment 1030 may be configured to receive an adapter sleeve for effecting attachment of the distal mirror shaft to an instrument, allowing aspiration / irrigation to clean the endoscope tip, providing a conduit for delivering electrical current to the mirror or instrument tip, and so on.

[0125] Figure 7A Depicts an instrument housing 1100 according to an embodiment of the present disclosure to which an endoscope attachment adapter (e.g., adapter 100) may be removably coupled. The instrument housing 1100 may be integrated near the top, on the side, or below the handle portion of the instrument or instrument shaft. For example, the instrument housing 1100 may be part of an instrument handle, such as a bipolar aspiration cautery, a coblation wand, a laryngeal forceps, a sinus forceps, an orthopedic articulating forceps, a laryngeal syringe gun, an endoscopic eustachian tube balloon dilator, an endoscopic tracheal dilator, an endoscopic transoral esophageal balloon dilator, an injection syringe, or some other instrument. The housing 1100 secures the adapter 100 to the instrument using a top-loading ratchet mechanism. Thus, an endoscope with a coupled adapter 100 may be removably coupled in a top-down manner by pushing the proximal end of the endoscope shaft with the adapter (i.e., pushing the rigid attachment segment 130) downward into the open channel 1130 of the housing 1100.

[0126] As depicted, the inner surface of the housing 1100 includes an open channel 1130, ridges, pins or protrusions 1110, and spring-loaded protrusions (e.g., spring-loaded balls) 1120. The rigid attachment segment 130 can be secured in place by: i) pushing it downward along the openings of two adjacent grooves 133 into the open channel 1130; and ii) sliding the rigid attachment segment 130 relative to the open channel 1100 to position each ridge 1110 within a corresponding groove 133 of the adjacent grooves 133 such that the protruding portions 138 of the segment 131 adjacent to the grooves 133 prevent lifting of the rigid attachment segment 130 (i.e., they block the ridges 1110). Additionally, when the assembly slides, the spring-loaded protrusions 1120 can be secured within the notches / cavities 132 of the segment 131 positioned between two grooves 133. To reposition the rigid attachment segment 130 at a different longitudinal position, the above operations can be reversed (i.e., it can be slid out, lifted, and secured along other grooves 133). As an illustration, Figure 7B a housing 1100 of a rigid attachment segment 130 removably coupled to an adapter 100 is shown. In an alternative embodiment, the positions of the spring-loaded protrusions 1120 and the notches / cavities 132 can be reversed, i.e., the notch 132 is part of the housing 1100 and the spring-loaded protrusion is part of the adapter 100.

[0127] By utilizing this attachment mechanism, the endoscope can be quickly secured within the instrument housing 1100 at a specific longitudinal position without the need for an elongated open channel 1130. Compared to the push-button / lever mechanism described previously in U.S. Patent No. 10,512,391, this type of attachment mechanism can eliminate any wobbling of the endoscope shaft within the open channel 1100 and allow the open channel to be shortened. Additionally, the top-loading ratchet mechanism described herein provides a quick and simple means for securing the endoscope to the instrument. The coupling, decoupling, and / or repositioning of the endoscope within the instrument is merely a matter of lifting / lowering and sliding such that the ridges 1110 are inserted into a specific set of grooves 133 and the spring-loaded protrusions 1120 are secured within specific notches 132.

[0128] Figure 8AIllustrated is an H-channel adapter 1300 according to an embodiment of the present disclosure. The H-channel adapter 1300 can be removably coupled to an endoscope shaft, an endoscope attachment adapter (such as adapter 100), and / or an attachment segment of an endoscope instrument tool. As depicted, the H-channel adapter 1300 includes an upper open channel 1310 and a lower open channel 1320 opposite the upper open channel 1310. The upper open channel 1310 is for removably coupling the H-channel adapter 1300 to the endoscope attachment adapter 100, and the lower open channel 1320 is for removably coupling the H-channel adapter 1300 to the endoscope instrument tool.

[0129] The inner surface of the upper open channel 1310 includes ridges or protrusions 1312 and spring-loaded protrusions (e.g., spring-loaded balls) 1311. The rigid attachment segment 130 can be secured in place by: i) pushing it downward along the openings of two adjacent grooves 133 into the upper open channel 1310; and ii) sliding the rigid attachment segment 130 relative to the open channel 1310 to position each ridge 1312 within a corresponding one of the adjacent grooves 133 such that the protruding portions 138 of the segment 131 adjacent to the grooves 133 prevent lifting of the rigid attachment segment 130 (i.e., they block the ridges 1312). Additionally, when the assembly slides, the spring-loaded protrusions 1311 can be secured within notches / cavities 132 of the segment 131 positioned beside the two grooves 133. In some embodiments of semi-rigid or plastic channels and shafts, rounded protrusions can suffice in place of the spring-loaded protrusions. Figure 8B An example of the H-channel adapter 1300 attached to the distal end of an endoscope attachment adapter 1350 is depicted.

[0130] The inner surface of the lower open channel 1320 includes side rails 1321 for slidably coupling an instrument tool. For example, a clamp, a suction device, a gripper, a culture tool, a fastener, a stapler, or some other instrument tool includes side grooves or longitudinal slots to engage the side rails 1321, thereby allowing attachment to the underside of the endoscope via the lower open channel 1320. Although a sliding mechanism for coupling the lower open channel 1320 to the instrument tool is illustrated, it should be understood that any suitable coupling mechanism can be utilized.

[0131] By utilizing an H-channel adapter 1300 that can be removably attached to an endoscopic attachment adapter (e.g., adapter 100) at a convenient longitudinal location, instrument tools can be attached in a suitable position below the endoscope using adapter 100 and the H-channel adapter 130. By incorporating a number of instrument channels that are offset from each other into the same adapter, multiple instruments can be attached to the endoscope simultaneously. This will be beneficial when performing rigid laryngoscopy, where a forceps, a suction device, a laser, and an endoscope may need to work together simultaneously through a single rigid tube.

[0132] In other embodiments, other adapters having two or more channels that are offset from each other by 90 degrees side by side or in other offset manners can be used.

[0133] Figure 9A An endoscope 1410 coupled to an instrument 1430 via an H-channel adapter 1600 according to an embodiment of the present disclosure is depicted. The distal shaft 1420 of the instrument 1430 is shown extending below the endoscope shaft 1440. The proximal shaft 1445 of the instrument 1430 is connected to the endoscope 1410 via the H-channel adapter 1600 and a rigid attachment segment on the shaft of the endoscope (e.g., the rigid attachment segment 130 of adapter 100), as described above. The rigid attachment segment can be a proximal portion of an adapter (e.g., adapter 100) that is coupled to the shaft of the endoscope 1410 or a part that is integrated into the proximal portion of the shaft of the endoscope 1410.

[0134] Figure 9B An endoscope 1480 coupled to an instrument 1450 and an instrument shaft 1460 according to an embodiment of the present disclosure is depicted. The top portion of the instrument 1450 includes an open channel that is coupled to the endoscope 1410 via a rigid attachment segment on the shaft of the endoscope (e.g., the rigid attachment segment 130 of adapter 100), as described above. The rigid attachment segment can be a proximal portion of an adapter (e.g., adapter 100) that is coupled to the shaft of the endoscope 1480 or a part that is integrated into the proximal portion of the shaft of the endoscope 1480. In this embodiment, the instrument 1450 includes a handle mechanism 1455 to actuate a tool tip 1470 attached to the instrument shaft 1460. In this way, the instrument and the scope are connected, and the tool is actuated in a linear, streamlined manner (with the hand placed on the top rather than below the instrument), avoiding the need for a large handle that is angled away from the scope. Additionally, this embodiment has the advantage of not requiring a separate H-channel adapter. Instead, the upper channel for coupling to the endoscope is integrated into the instrument 1450.

[0135] Figures 10A - 10BIllustrated is an H-channel adapter 1600 according to an embodiment of the present disclosure. The H-channel adapter 1600 may be removably coupled to an endoscope attachment adapter (e.g., adapter 100) and an endoscope instrument tool. As depicted, the H-channel adapter 1600 includes an upper open channel 1610 and a lower open channel 1620 opposite the upper open channel 1610. The upper open channel 1610 is for removably coupling the H-channel adapter 1600 to an endoscope attachment adapter or instrument, and the lower open channel 1620 is for removably coupling the H-channel adapter 1600 to an endoscope attachment adapter or instrument. In alternative embodiments, there may be three or more channels integrated into the same adapter and offset from each other at different angles. Such embodiments would allow multiple instruments and / or endoscopes to be attached together simultaneously.

[0136] The inner surface of the upper open channel 1610 includes ridges or protrusions 1612 and spring-loaded protrusions (e.g., spring-loaded balls) 1611. The rigid attachment segment 130 can be secured in place by: i) pushing it downward along the openings of two adjacent grooves 133 into the upper open channel 1610; and ii) sliding the rigid attachment segment 130 relative to the open channel 1610 to position each ridge 1612 within a corresponding one of the adjacent grooves 133 such that the protruding portions 138 of the section 131 adjacent to the grooves 133 prevent lifting of the rigid attachment portion 130 (i.e., they block the ridges 1612). Additionally, when the assembly slides, the spring-loaded protrusions 1611 can be secured within the notches / cavities 132 of the section 131 positioned next to the two grooves 133.

[0137] Similar to the upper open channel 1610, the inner surface of the lower open channel 1620 includes ridges or protrusions 1612 and spring-loaded protrusions 1611. In alternative embodiments, one or both of the channels 1610 and 1620 may include at least two spring-loaded protrusions 1611. In alternative embodiments, one or both of the channels 1610 and 1620 may include notches or non-spring-loaded protrusions instead of the spring-loaded protrusions 1611.

[0138] Figure 11An H-channel adapter 1600 for removably coupling an endoscope 1710 and a forceps instrument 1720 is depicted, according to an embodiment of the present disclosure. As depicted, the upper open channel 1610 of the H-channel adapter 1600 is removably coupled to the rigid attachment section 130 of the endoscope attachment adapter 100, and the lower open channel 1620 of the H-channel adapter 1600 is removably coupled to the handle portion of the forceps instrument 1720. By removably coupling the endoscope 1710 to the forceps instrument 1720 using the H-channel adapter 1600, the distal portion 1711 of the endoscope 1710 can be conveniently positioned adjacent to the tool portion 1721 of the forceps instrument 1720 to capture appropriate images of the patient's cavity. Additionally, various other instruments can be removably coupled to the lower channel 1620 of the H-channel adapter 1600.

[0139] In certain embodiments, it may be advantageous for a rigid proximal attachment segment (e.g., segment 130) of an endoscope adapter (e.g., adapter 100) to be threaded onto a flexible shaft or endoscope shaft to include one or more hinges that allow the shape of the endoscope shaft and adapter to be changed to accommodate different shapes and contours of surgical instruments without allowing for looseness that would destabilize the scope when attached to the instrument. To this end, Figure 12 Depicted is a portion of an endoscope shaft or attachment adapter 2300 that is rectangular and includes a hinge 2310. In this embodiment, the hinge 2310 utilizes a joint that enables the portion of the adapter 2300 to pivot or rotate about a single plane. Figure 13 Depicted is a portion of an endoscope attachment adapter 2400 that is rectangular and includes a ball and socket hinge 2410. In this embodiment, the ball and socket hinge 2410 enables the portion of the adapter 2400 to pivot or rotate about both the horizontal and vertical planes. Figures 12 - 13 Two example hinge joints that may be utilized are illustrated, but it will be appreciated that other suitable hinge joints may be used.

[0140] By utilizing an articulated adapter, different advantages can be achieved depending on the instrument and application. For example, the head of an endoscope can be angled away from the instrument (e.g., 10-90 degrees). This can enable the endoscope to be attached to instruments or devices that must remain straight to function. As another example, the adapter can be articulated in two or three positions to allow the scope to bend around the instrument's head. Furthermore, articulated segments can enable attachment to instruments of various profiles.

[0141] Figures 14A - 14C Another embodiment of an endoscope attachment adapter 2500 is depicted in accordance with an embodiment of the present disclosure. Figures 14A - 14B A perspective view of the adapter 2500 is shown, and Figure 14CIllustrated is a cross-sectional view of adapter 2500. Adapter 2500 includes coupler 2510, rotatable joint 2520, hinge joint 2540, and rigid attachment segment 2530.

[0142] At the proximal end of adapter 2500 is opening 2511 through connector 2510. At the distal end of adapter 2500 is opening 2541. Opening 2541 may begin at the distal end of rigid attachment segment 2530. Extending from opening 2511 to opening 2541 is channel 2575 through the length of adapter 2500. The flexible shaft of an endoscope may be passed through channel 2575, starting at opening 2511 and moving through opening 2541. Once the endoscope shaft has been passed through the channel of adapter 2500, adapter 2500 may be secured at the proximal end of the endoscope shaft by removably coupling adapter connector 2510 (e.g., coupling to an endoscope connector). The two connectors may be secured in a manner similar to that described above with reference to connector 110 of adapter 100.

[0143] Rigid attachment segment 2530 is quadrilateral with a square cross-section. In other embodiments, rigid attachment segment 2530 may have a different rectangular cross-section or a circular cross-section. Formed on the surface of one of the four sides of segment 2530 are a plurality of grooves / slots 2533 and a plurality of segments 2531 protruding relative to grooves 2533, each of segments 2531 having a recessed notch or cavity 2532. Rigid attachment segment 2530 may be used to couple adapter 2500 to an instrument in a manner similar to that discussed above with reference to adapter 100.

[0144] Positioned between hinge joint 2540 and coupler 2510, rotatable joint 2520 enables adapter 2500 to rotate about its longitudinal axis. Rotatable joint 2520 may be implemented in a manner similar to that discussed above with reference to rotatable joint 120. Hinge joint 2540 coupled between rigid attachment segment 2530 and coupler 2510 enables rigid attachment segment 2530 to be additionally angled. By utilizing the combination of hinge joint 2540 and rotatable joint 2530 in this example, additional degrees of freedom are provided in positioning adapter 2500. Adding several hinge joints 2540 in series allows for even greater variation in the profile of the attachment shaft.

[0145] Figures 15A - 15BA perspective view and a cross-sectional view of an endoscopic attachment adapter 2700 with an integrated cannula are shown. The integrated cannula can be used to flush / clean the tip of the endoscope. The aspiration / irrigation port 2720 will be connected proximally via an irrigation or aspiration conduit to an aspiration / irrigation pump activated by a foot or hand control. On the distal lower surface of the distal end 2740 of the cannula adapter 2700, there may be one or more instrument attachment connectors 2745 for securing the adapter to the instrument shaft in one or more orientations. Magnets incorporated within the cannula adapter or the instrument shaft can also be used to attach the distal cannula adapter to the instrument shaft. In his example, the cannula adapter can slide over a rigid, flexible, or hybrid endoscopic shaft, be connected via a connector 2710 to an endoscopic coupler located on the distal endoscopic housing, and can have a rotational capability. The distal segment of the cannula (i.e., the portion of the cannula that extends distally from the rectangular attachment portion 2730 of the adapter) can also be rigid, flexible, or hybrid.

[0146] Although, so far, the embodiments have been mainly described in the context of endoscopic attachment adapters removably coupled to and / or used with endoscopes and / or instruments for endoscopes, it should be understood that some of the adapter embodiments described herein and their associated technical advantages can be achieved by directly incorporating their features into endoscopes and / or endoscopic instruments (whether disposable or reusable). For example, a flexible-rigid hybrid endoscope (e.g., an endoscope having a shaft with a flexible distal end and a rigid proximal end) or a rigid endoscope (e.g., an endoscope having a rigid shaft) can have an endoscopic shaft with an integrated proximal attachment segment structurally similar to the adapter 100, adapter 200, adapter 900, adapter 1000, adapter 2500, or adapter 2700. In such an embodiment, since the structural features of the adapter are incorporated into the endoscope (e.g., at the proximal end of the endoscopic shaft), the endoscopic connector of the adapter (e.g., 110) can be eliminated.

[0147] For example, the proximal segment of the endoscope shaft can have a rectangular cross-section, similar to the cross-section described above for adapter 100, with a plurality of grooves / slots 133 and a plurality of segments 131 formed on at least one of the four sides, each of the segments 131 having a recessed notch or cavity 132. In such an embodiment, the advantages of such a top-down ratchet attachment design can be achieved by integrating them directly into the proximal attachment segment of the endoscope shaft. Additionally, the endoscope shaft can be configured to rotate about a rotatable joint. Moreover, the endoscope shaft can be configured to be coupled to the instrument housing 1100, the H-channel adapter 1300, or the H-channel adapter 1600. Additionally, the proximal attachment segment of the endoscope shaft can itself include one or more hinges, allowing the shape of the endoscope shaft to be changed to accommodate the different shapes and profiles of surgical instruments without allowing slack that would destabilize the scope when attached to the instrument.

[0148] Figures 16A - 16D An endoscope housing 870 is depicted having a rigid rectangular proximal attachment segment 2910 and a detachable endoscope shaft 2920, in accordance with some embodiments of the present disclosure. The proximal attachment segment 2910 can be attached to an instrument or adapter in a manner similar to that described above with reference to, for example, adapter 100. However, it is envisioned that other proximal attachment segments as described above or otherwise can be coupled to the detachable endoscope shaft 2920.

[0149] As depicted by Figure 16D the detachable shaft 2920 is configured to be directly and removably inserted into the distal end of the proximal attachment segment 2910. In other configurations (not shown), the detachable shaft 2920 can include the rigid rectangular proximal attachment segment 2910. In such an embodiment, the combined distal and proximal shaft segments will be removably inserted into or onto the endoscope housing 870. Various lengths of detachable endoscope shafts and included segments are envisioned. In some embodiments, the endoscope housing and / or the endoscope shaft can be disposable. In other embodiments, the detachable shaft can be specialized in a way that changes its longitudinal configuration, distal or proximal instrument attachment mechanism, diameter, image resolution, number of cameras, viewing angle, cross-sectional shape (flat, round, oval, polygonal), flexibility, articulation or internal channel or hardware configuration.

[0150] Figures 17A - 17BDepicts components of a detachable endoscope shaft 2920 in accordance with some embodiments of the present disclosure. During operation of the endoscope, light emitted from a light source (e.g., an LED light source) contained within the endoscope housing 970 is transmitted through a proximal illumination coupler 2930 within the proximal end 2935 of the endoscope shaft 2920. The light travels through the shaft 2920 via an illumination channel 2940 that terminates at the distal segment 2945 of the shaft 2920. The illumination channel 2940 can be a molded illumination tube or an optical fiber. Alternatively, in other embodiments (not shown), the light source can be integrated internally and / or externally into the detachable endoscope shaft 2920. In such embodiments, the light source can be a separate LED, or an LED combined with an optical fiber positioned within or near the distal end of the endoscope shaft 2920 (e.g., near the camera sensor 2950, in a different channel such that the light emitted by the light source does not interfere with the operation of the camera sensor) or in some other section of the endoscope shaft 2920. Depending on the location of the light source within the detachable endoscope shaft 2920, such embodiments can shorten or remove the illumination channel 2940 (e.g., the molded illumination tube). To supply power to the light source to make it operable in such embodiments, the endoscope housing can provide power to the light source (and the image sensor) via a separate power line or via power line communication.

[0151] A camera sensor 2950 located at the distal tip of the endoscope shaft 2920 is electrically connected to a camera module connector 2955 located at the proximal end of the endoscope shaft. Immediately distal to the camera module connector 2955 is a mirror connector segment 2960, which together with the camera module connector 2955 is inserted via Figure 18 the internal channel 2975 into a proximal rigid attachment segment 2910 extending from the endoscope housing 870 to mechanically and electrically couple the endoscope shaft 2920 to the endoscope housing 970.

[0152] Figures 17C - 17F Depicts a larger scale view of the mirror connector segment 2960. Within the proximal aspect of the mirror connector segment 2960, immediately behind the camera module connector 2955 is a circumferential groove 2970 that allows for a snap fit connection to a female receiving portion 2975 located on the distal aspect of the rigid proximal segment. An elongate rectangular protrusion 2980 rests along the top surface of the mirror connector segment 2960 and is used to facilitate one-way installation for keying the proximal endoscope shaft into the proximal rigid segment or the endoscope housing. In other embodiments, one or more other protrusions resting along the surface of the mirror connector segment can facilitate installation. In other embodiments, the orientation of the elongate rectangular protrusion 2980 can be reversed and incorporated within the female receiving portion 2975 and electrical contacts 2990 located on the proximal end of the detachable shaft 2920.

[0153] Figure 18 An exploded cross-sectional view of a mating connection 2985 between a detachable mirror connector segment 2960 and the distal end of a proximal attachment segment 2910 is shown. As depicted, the mirror connector segment 2960 is inserted into a female receiving portion 2975 of the proximal attachment segment 2910. During insertion, one or more electrical contacts 2990 within a camera module interface in the proximal attachment segment press against one or more electrical contacts along the top surface of the inserted camera module connector 2955. Once the electrical connection is secure, camera signals (e.g., image data) collected via the camera sensor 2950 can travel to a processor located within the endoscope housing. Additionally, a proximal illumination coupler 2930 within the proximal end 2935 is optically coupled to an illumination coupler 2936 within the interior of the proximal attachment segment. Thus, after the optical connection, light emitted from a light source (e.g., an LED light source) contained within the endoscope housing 970 is transmitted through the illumination coupler 2936 and then through the proximal illumination coupler 2930. Further, an elongate rectangular protrusion 2980 is mechanically coupled within the proximal rigid segment. Spring-loaded balls or other protrusions (not shown) within the female receiving portion can reversibly engage circumferential grooves 2970 to further secure the mechanical connection. Thus, after the removable connection, the endoscope shaft 2920 can be electrically, optically, and mechanically coupled to the proximal attachment segment.

[0154] In configurations where the detachable shaft 2920 includes a proximal attachment segment 2910 (not shown herein), it should be understood that the illustrated connection components (e.g., electrical contacts 2990, female receiving portion 2975, illumination coupler 2936, etc.) at the distal end of the proximal attachment segment 2910 can alternatively be included within the distal end of the endoscope housing 870. In such an embodiment, the detachable mirror connector segment 2960 of the shaft 2920 can be proximal to the proximal attachment segment 2910.

[0155] In configurations where the light source is integrated into the detachable endoscope shaft 2920 (e.g., as one or more LEDs at the distal tip), the illumination couplers (e.g., illumination couplers 2930, 2936) can be omitted, and there is no need to optically couple the detachable endoscope shaft to the endoscope housing. In such cases, when the endoscope shaft is electrically connected via, for example, the connector 2955, the endoscope housing 970 can supply power to the light source of the endoscope shaft. In some cases, additional connections can be used to supply power. The endoscope housing 970 can supply power via an integrated battery, an AC / DC power supply, or some other suitable power source.

[0156] Figures 19A - 19B and Figures 20A - 20BTwo additional examples of electrical couplings that can be used to electrically couple a detachable endoscope shaft to a proximal attachment segment / endoscope housing according to some embodiments of the present disclosure are illustrated. In these examples, the detachable endoscope shaft and the endoscope housing are electrically coupled but not optically coupled.

[0157] Figures 19A - 19B The electrical coupling between a detachable endoscope shaft and a proximal attachment segment / endoscope housing using internal sliding contacts is depicted. During the mating connection between the detachable scope connector segment and the distal end of the proximal attachment segment or endoscope housing, one or more electrical contacts of a camera module connector 3055 located at the proximal end of the endoscope shaft slide between two sets of electrical contacts, one set above and one set below, of a camera module connector 3099 within the proximal attachment segment or endoscope housing. In this manner, multiple camera sensors arranged within or along the shaft 2920 can be powered and their signals transmitted simultaneously to the endoscope housing. It should be noted that other configurations for the electrical connection of connector 2955 are contemplated. Such configurations (such as circular, oval, cross-shaped, T-shaped, etc.) can allow for the simultaneous connection of three or more camera modules.

[0158] Figures 20A - 20B The electrical coupling between the detachable endoscope shaft and the proximal attachment segment / endoscope housing is depicted using internal spring-compressed contacts. During the mating connection between the detachable scope connector segment and the distal end of the proximal attachment segment or endoscope housing, one or more electrical contacts of the camera module connector 3199 within the proximal attachment segment or endoscope housing are pressed against one or more electrical contacts of the camera module connector 3155 located at the proximal end of the endoscope shaft. Although this example shows the male electrical contacts on the camera module connector 3199 being inserted into the corresponding female electrical contacts of the camera module connector 3155, the female and male electrical contacts can be reversed.

[0159] Figures 21A - 21D An endoscope according to some embodiments of the present disclosure is depicted that includes an endoscope housing 3270 and a detachable endoscope shaft 3220 configured to be removably coupled. In this example, the endoscope housing 3270 and the detachable endoscope shaft 3220 are configured to be mechanically, electrically, and optically coupled.

[0160] The detachable endoscope shaft 3220 includes a distal segment 3221, a proximal attachment segment 3222, and a scope connector segment 3230 proximal to the proximal attachment segment 3222. The proximal attachment segment 3222 can be attached to an instrument or adapter in a manner similar to that described above. The scope connector segment 3230 is configured to be removably, electrically, optically, and mechanically coupled to an endoscope housing connector segment 3280 on the distal end of the endoscope housing 3270. Figures 21C - 21D This coupling is illustrated in more detail.

[0161] During coupling, the endoscope housing connector segment 3280 is inserted into the opening of the scope connector segment 3230. The endoscope housing connector segment 3280 includes a groove 3282 that slidably receives an elongated rectangular protrusion / rod 3322 in the interior of the scope connector segment 3230, which helps to secure the mechanical connection between the detachable endoscope shaft 3220 and the endoscope housing 3270.

[0162] During insertion, one or more electrical contacts 3281 on the underside of the endoscope housing connector segment are electrically coupled to one or more electrical contacts 3231 within the interior of the scope connector segment 3230. Once the electrical connection is secured, image signals (e.g., image data) can travel between the endoscope shaft 3220 and the endoscope housing 3270. In embodiments where one or more image sensors or LEDs are within the detachable endoscope shaft 3220 (e.g., near the distal end of the distal segment 3221), image signals collected via the image sensor(s) can travel to the endoscope housing 3270 for further processing. In a similar manner, electrical power can be transmitted distally to power any LEDs within the endoscope shaft. In embodiments where the detachable endoscope shaft 3220 includes multiple image sensors, separate sets of electrical contacts located on each segment 3230, 3280 can be used to separately couple the signals from each image sensor(s). For example, where two image sensors are included, the scope connector segment 3230 may include two sets of electrical contacts (e.g., top and bottom rows of contacts 3231) that couple to corresponding two sets of electrical contacts (e.g., top and bottom rows of contacts 3281) of the endoscope housing connector segment 3280. Various other electrical configurations are also contemplated.

[0163] exist Figures 21C - 21DAlso illustrated therein is the illumination coupler 3283 of the endoscope housing connector segment 3280, which is optically coupled to an illumination coupler (not shown) of the mirror connector segment 3230. Thus, after the optical connection, light emitted from a light source (e.g., an LED light source) contained within the endoscope housing 3270 is transmitted through the illumination coupler 3283 and then through the detachable endoscope shaft 3220 (e.g., via an illumination channel terminating at the distal end of the shaft 3220).

[0164] As depicted, the profile of the endoscope housing connector 3280 of the endoscope housing 3270 provides a surface that is relatively easy to clean after operation, thereby improving the usability and ergonomics of the endoscope assembly.

[0165] In an alternative embodiment, the endoscope shaft 3220 may include optical fibers for delivering an image from the endoscope shaft 3220 to one or more image sensors contained within the endoscope housing 3270. In such an embodiment, the electrical connection may optionally be omitted and replaced by an optical fiber connection between segments 3230 and 3280 (e.g., the contacts 3231 and 3281 are replaced by optical fiber coupling components on each connector). Alternatively, the electrical connection may be maintained solely for the purpose of supplying power from the endoscope housing 3270 to one or more light sources and / or other components of the endoscope shaft 3220.

[0166] In some embodiments, additional mechanical attachment mechanisms or adapters may be used to further expand the usability and / or configurability of an endoscope with a detachable shaft. For example, Figures 22A - 22B A removable endoscope shaft assembly including an endoscope housing 3270, a detachable endoscope shaft 3220, and a sleeve adapter 3290 is depicted. The sleeve adapter 3290 includes a cannula 3291 and a connector 3292. The sleeve adapter 3291 may be removably coupled to the detachable endoscope shaft 3220 by sliding the distal segment 3221 through an opening / channel extending through the cannula 3291 from the connector 3292 and securing the connector 3292 to the proximal attachment segment 3222. In some embodiments, during operation, the sleeve adapter 3291 may serve as a stiffening cannula in a straight, curved, or irregular configuration that facilitates the guidance of the flexible endoscope shaft with or without an instrument attached to the attachment segment. The cannula 3291 may be extensible or magnetic.

[0167] During operation, the sleeve adapter 3291 may serve as a stiffening cannula that facilitates the guidance of the flexible endoscope shaft. The cannula 3291 may be extensible.

[0168] Figures 23A - 23BDepicted is an irrigation or suction sleeve adapter 3310 removably coupled to a detachable endoscope shaft 3220, according to some embodiments of the present disclosure. The irrigation or suction sleeve adapter 3310 adds additional irrigation and / or suction capabilities via a cannula 3313 that slides over the distal segment 3221. The cannula 3313 can be used to irrigate / clean the tip of the endoscope shaft 3320. The suction / irrigation port 3311 is proximally connected to a suction / irrigation pump activated by a foot or handheld control via an irrigation or suction tube. The irrigation or suction sleeve adapter 3310 can be secured to the detachable endoscope shaft 3220 by coupling one or more connectors 3312 of the adapter 3310 to the proximal attachment segment 3222.

[0169] Figure 24 Depicted is an attachment segment extension adapter 3400 removably coupled to a detachable endoscope shaft 3220, according to some embodiments of the present disclosure. After the adapter 3400 is secured to the detachable endoscope shaft 3220 by coupling one or more connectors 3412 of the adapter 3400 to the proximal attachment segment 3222, features of the proximal attachment segment 3222 can be extended by corresponding features in the attachment segment 3422 of the adapter 3400, thereby providing additional flexibility (e.g., longitudinal positioning) for attaching instruments or adapters as described above.

[0170] The endoscopes, attachment mechanisms, and instruments described herein can be used for any suitable application. For example, they can be used for surgical applications in otolaryngology (ENT). They can also be used in other surgical procedures and medical specialties (such as general surgery, gastroenterology, pulmonology, urology, plastic surgery, neurosurgery, obstetrics and gynecology (OB / GYN), and orthopedics) for applications such as surgical anastomosis, tissue ablation, and arthroscopic surgery. Commercial, non-surgical applications of the technology disclosed herein are also applicable.

[0171] Although described above with reference to various example embodiments, it should be understood that the various features, aspects, and functions described in one or more of the individual embodiments are not limited to their applicability to the specific embodiment in which they are described, but can be applied alone or in various combinations to one or more of the other embodiments of the application, whether or not such embodiments are described and whether or not such features are present as part of the described embodiment. Accordingly, the breadth and scope of the present application should not be limited by any of the above-described example embodiments.

[0172] As used throughout this disclosure (including the claims), the terms "substantially" and "about" are used to describe and account for small fluctuations, such as due to variations in processing. For example, they can refer to less than or equal to ±5%, such as less than or equal to ±2%, such as less than or equal to ±1%, such as less than or equal to ±0.5%, such as less than or equal to ±0.2%, such as less than or equal to ±0.1%, such as less than or equal to ±0.05%.

[0173] To the extent applicable, the terms "first", "second", "third", etc. in this document are used only to show the corresponding objects described by these terms as separate entities, and do not imply an order in time unless otherwise expressly stated herein.

[0174] Unless otherwise expressly stated, the terms and phrases used in this document and their variants should be construed as open-ended rather than restrictive. As examples of the foregoing: the term "comprising" should be understood to mean "including but not limited to" and the like; the term "example" is used to provide some instances of the item being discussed, rather than an exhaustive or restrictive list; the term "a" or "an" should be understood to mean "at least one", "one or more" and the like; adjectives such as "conventional", "typical", "normal", "standard", "known" and terms with similar meanings should not be construed as limiting the item being described to a given time period or to items available at a given time, but should be understood to cover conventional, typical, normal or standard techniques available or known at any time now or in the future. Similarly, where this document refers to techniques that would be obvious or known to a person of ordinary skill in the art, such techniques cover those that are obvious or known to a person of skill in the art at any time now or in the future.

[0175] In some cases, the presence of broadened words and phrases (such as "one or more", "at least", "but not limited to" or other similar phrases) should not be construed to mean that a narrower case was intended or required in instances where such broadened phrases may not be present. The use of the term "module" does not imply that the components or functions described or claimed as part of the module are all configured in a common enclosure. In fact, any one or all of the various components of a module (whether control logic or other components) can be combined in a single enclosure or maintained separately, and can further be distributed in multiple groupings or enclosures or across multiple localities.

[0176] Furthermore, the various embodiments described herein are described with reference to example block diagrams, flow charts, and other illustrations. As will become apparent to those skilled in the art upon reading this document, the illustrated embodiments and their various alternatives may be implemented without limitation to the illustrated examples. For example, the block diagrams and accompanying descriptions should not be construed as mandating a specific architecture or configuration.

[0177] Although various embodiments of the present disclosure have been described above, it should be understood that they are presented by way of example only and not by way of limitation. Similarly, various schematic diagrams may depict example architectures or other configurations of the present disclosure, which is done to help understand the features and functions that may be included in the present disclosure. The present disclosure is not limited to the example architectures or configurations shown, but various alternative architectures and configurations may be used to implement the desired features. In fact, it will be apparent to those skilled in the art how to implement alternative functional, logical or physical partitions and configurations to implement the desired features of the present disclosure. In addition, a variety of different component module names other than those described herein may be applied to the various partitions. In addition, with respect to flow charts, operational descriptions, and method claims, unless the context otherwise dictates, the order in which the steps are presented herein should not mandate that the various embodiments perform the functions in the same order.

Claims

1. An endoscope, characterized in that Comprising: A housing, said housing including a light source and a circuit for receiving an image signal; A proximal attachment segment, said proximal attachment segment being coupled to said housing and extending from said housing, said proximal attachment segment being configured to be removably coupled to an instrument or an adapter; And A detachable endoscope shaft, said detachable endoscope shaft being configured to be optically, electrically, and mechanically coupled to the distal end of said proximal attachment segment, such that the endoscope shaft receives light transmitted by the light source and transmits the image signal to the circuit.

2. The endoscope according to claim 1, characterized in that Wherein: The interior of the distal end of said proximal attachment segment includes: A first illumination coupler for optically coupling a second illumination coupler of the detachable endoscope shaft to the light source; and One or more first electrical contacts; and The proximal end of the detachable endoscope shaft includes an endoscope connector segment, said endoscope connector segment including: The second illumination coupler; and An image module connector including one or more second electrical contacts configured to contact the one or more first electrical contacts to form an electrical connection between the circuit of the housing and the detachable endoscope shaft.

3. The endoscope according to claim 2, characterized in that Wherein: The distal end of said proximal attachment segment further includes a receiving portion; and The endoscope connector segment further includes: a mechanical connector configured to effect a snap connection with the receiving portion.

4. The endoscope according to claim 2, characterized in that Wherein the distal end of the detachable endoscope shaft includes an image sensor electrically coupled to the one or more second electrical contacts.

5. The endoscope according to claim 1, wherein Wherein: The proximal attachment segment is a rigid attachment segment, the surface of the rigid attachment segment including a groove and a section adjacent to the groove, the section protruding relative to the groove and including a recessed notch or protrusion.

6. The endoscope according to claim 1, characterized in that Wherein: The proximal attachment segment is a rigid attachment segment, the surface of the rigid attachment segment including a plurality of grooves and a plurality of sections alternating along the longitudinal length of the rigid attachment segment; Each of the sections protrudes relative to the groove and includes a recessed notch or protrusion; and The plurality of sections and the plurality of grooves are configured such that the instrument or the adapter can be coupled to the endoscope at a plurality of longitudinal positions.

7. The endoscope according to claim 6, characterized in that Wherein the rigid attachment segment is fixed to the housing.

8. The endoscope according to claim 6, wherein Wherein the rigid attachment segment is removably coupled to the housing via an adapter.

9. The endoscope according to claim 6, characterized in that Wherein the rigid attachment segment can rotate about its longitudinal axis.

10. A detachable endoscope shaft, characterized in that Comprising: A distal end including an image sensor; A proximal end including an endoscope connector segment configured to removably, mechanically, electrically, and optically couple the endoscope shaft to an endoscope housing, the endoscope connector segment including: An illumination coupler for optically coupling the detachable endoscope shaft to the light source of the endoscope housing; and An image module connector, the image module connector including one or more first electrical contacts electrically coupled to the image sensor, the one or more first electrical contacts configured to contact one or more second electrical contacts to form an electrical connection between a circuit of the endoscope housing and the detachable endoscope shaft; and An attachment segment, the attachment segment being distal to the endoscope connector segment, the attachment segment configured to removably couple to an instrument or an adapter.

11. The detachable endoscope shaft according to claim 10, wherein Further comprising: an illumination channel, the illumination channel beginning at the illumination coupler and ending at an opening at the distal end of the endoscope shaft, the opening at the distal end being adapted to emit light to illuminate a sample, and the image sensor being adapted to collect light reflected by the sample.

12. The detachable endoscope shaft according to claim 10, wherein Wherein: The attachment segment is a rigid attachment segment, the surface of the rigid attachment segment including a groove and a section adjacent to the groove, the section protruding relative to the groove and including a recessed notch or protrusion.

13. The detachable endoscope shaft according to claim 10, wherein Wherein: The attachment segment is a rigid attachment segment, the surface of the rigid attachment segment including a plurality of grooves and a plurality of sections alternating along the longitudinal length of the rigid attachment segment; Each of the sections protrudes relative to the groove and includes a recessed notch or protrusion; and The plurality of sections and the plurality of grooves are configured such that the instrument or the adapter can be coupled to the endoscope at a plurality of longitudinal positions.

14. The detachable endoscope shaft according to claim 10, wherein Wherein the endoscope connector segment further comprises: a mechanical connector, the mechanical connector configured to effect a snap connection.

15. The detachable endoscope shaft according to claim 14, characterized in that Wherein the mechanical connector includes a circumferential groove that allows the snap connection with a receiving portion.

16. The detachable endoscope shaft according to claim 14, wherein Wherein the mechanical connector includes an elongated rectangular protrusion along the surface of the endoscope connector segment.

17. An endoscope assembly, characterized in that Comprising: An endoscope housing, the endoscope housing including a distal connector, the distal connector including a first circuit configured to receive one or more image signals or supply power from the endoscope housing; And A detachable endoscope shaft, the detachable endoscope shaft including: A distal segment configured to be inserted into a patient cavity; An attachment segment proximal to the distal segment, the attachment segment configured to removably couple to an instrument or an adapter; and A proximal connector configured to removably and electrically couple to the distal connector, the proximal connector including a second circuit configured to be electrically coupled to the first circuit.

18. The endoscopic assembly according to claim 17, wherein Wherein: The detachable endoscope shaft further includes one or more image sensors configured to generate the one or more image signals; The second circuit is configured to transmit the one or more image signals to the first circuit; and The first circuit is configured to receive the one or more image signals.

19. The endoscope assembly according to claim 18, wherein Wherein: The one or more image signals include a first image signal and a second image signal; The one or more image sensors include a first image sensor for generating the first image signal and a second image sensor for generating the second image signal; The first circuit includes one or more first electrical contacts for receiving the first image signal and one or more second electrical contacts for receiving the second image signal; The second circuit includes one or more third electrical contacts for transmitting the first image signal and one or more fourth electrical contacts for transmitting the second image signal; The one or more first electrical contacts and the one or more third electrical contacts are removably coupled; and The one or more second electrical contacts and the one or more fourth electrical contacts are removably coupled.

20. The endoscope assembly according to claim 17, wherein Wherein the first circuit includes a first set and a second set of opposing electrical contacts, and the second circuit includes a third set of electrical contacts configured to slidably connect between the first set and the second set of opposing electrical contacts.

21. The endoscope assembly according to claim 17, wherein Wherein: The endoscope housing further includes a light source; and The distal connector further includes an illumination coupler to optically couple the light source to the detachable endoscope shaft via the proximal connector.

22. The endoscope assembly according to claim 21, wherein Wherein the distal connector further includes a groove or a protrusion to mechanically couple the distal connector to the proximal connector.

23. The endoscopic assembly according to claim 17, wherein Also included is a sleeve adapter for removably coupling to the detachable endoscope shaft, the sleeve adapter including: A proximal connector for coupling to the attachment segment; and A cannula extending distally from the proximal connector, through which the distal segment slides when the sleeve adapter is removably coupled to the detachable endoscope shaft.

24. The endoscope assembly according to claim 23, wherein Wherein the cannula of the sleeve adapter is stiffer than the distal segment and is configured to facilitate guiding the detachable endoscope shaft.

25. The endoscope assembly according to claim 23, wherein Wherein the sleeve adapter further includes a suction or irrigation port coupled to the interior of the cannula.

26. The endoscope assembly according to claim 23, wherein Wherein: The attachment segment includes a first repeating feature for coupling to the instrument in one or more longitudinal positions; and The sleeve adapter further includes a second repeating feature for coupling to the instrument in one or more additional longitudinal positions.

27. The endoscopic assembly according to claim 17, wherein Wherein: The distal segment includes one or more light sources; and When the first circuit is electrically coupled to the second circuit, the first circuit is configured to supply power from the endoscope housing to the detachable endoscope shaft to power the one or more light sources.

Images