Surgical drape retractor system with integrated oxygen delivery and carbon dioxide capture

Abstract

A surgical drape retractor system includes a head engaging portion configured to engage and conform to a patient's facial anatomy, a drape retracting portion operatively connected thereto for distancing a surgical drape from the airway region, and a fastening portion for secure attachment. A frame structurally connects the head engaging and drape retracting portions, providing necessary rigidity and spacing. Integrated oxygen delivery and carbon dioxide capture portions enable supplemental oxygen administration and exhaled gas monitoring via ports positioned within a cavity formed between the drape, patient face, and device. The system is manufacturable as a single molded unit or assembled components, offered in various sizes, and combinable in kits with surgical drapes and respiratory tubing. This design improves surgical field accessibility, patient comfort, and clinical workflow for ophthalmic and other head and neck surgical procedures.

Description

[0001] SURGICAL DRAPE RETRACTOR SYSTEM WITH INTEGRATED OXYGEN DELIVERY AND CARBON DIOXIDE CAPTURE

[0002] CROSS-REFERENCE TO RELATED APPLICATIONS

[0003] This application claims the benefit of U.S. Provisional Patent Application No. 63 / 750,209, filed Jan. 27, 2025, under 35 U.S.C. §119(e). The entirety of that provisional application is incorporated herein by reference in its entirety for all purposes.

[0004] BACKGROUND

[0005] Surgical drape retractors are medical devices that may be used to maintain a sterile and unobstructed surgical field during procedures such as ophthalmic surgery. These devices can function to hold a surgical drape away from a patient’s nose and mouth, thereby improving visibility and access for the surgical team while also enhancing patient comfort. In typical surgical settings, a surgical drape is placed over the patient’s head and face to isolate the surgical site, and a retractor may be employed to prevent the drape from contacting the patient’s airway and facial features. Existing surgical drape retractors are often secured to the patient’s cheeks using adhesives, which can result in skin irritation, slippage, or require time-consuming placement and adjustment steps. In addition, patients are commonly fitted with a separate nasal cannula to provide supplemental oxygen during surgery, which introduces further complexity and may cause additional discomfort or skin irritation.

[0006] There remains a need for improved surgical drape retractor systems that can address these challenges by providing secure and comfortable engagement with the patient’s anatomy, minimizing the risk of slippage or skin irritation, and streamlining the surgical preparation process. In some cases, it may be desirable to integrate additional features, such as oxygen delivery and carbon dioxide capture, into a single device to reduce the number of components required and further enhance workflow efficiency in the surgical environment.

[0007] SUMMARY

[0008] The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed subject matter. This summary is not an extensive overview, and it is not intended to identify key / critical elements or to delineate the scope thereof. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.

[0009] Features from any of the above-mentioned embodiments may be used in combination with one another in accordance with the general principles described herein. These and otherembodiments, features, and advantages will be more fully understood upon reading the following detailed description in conjunction with the accompanying drawings and claims. Surgical procedures, particularly in ophthalmic settings, often require the use of surgical drapes to maintain a sterile field and protect the patient. However, conventional surgical drape retractors and separate nasal cannulas can present challenges, including inefficient workflow, patient discomfort, risk of skin irritation, and difficulties in maintaining optimal drape positioning. Existing solutions typically rely on adhesive-based retractors that attach to the patient’s cheeks, which may not provide adequate stability, can be time-consuming to apply, and may cause slippage or skin reactions. Additionally, the use of a separate nasal cannula for oxygen delivery introduces further complexity and can contribute to patient discomfort or movement during surgery.

[0010] To address these and other issues, embodiments described herein provide a surgical drape retractor system that integrates multiple functional components into a single device. In some embodiments, the system includes a head engaging portion configured to conform to and engage a region of the patient’s head or face, such as the chin, jaw, cheeks, mouth, lips, nose, forehead, or neck. The head engaging portion may be molded for anatomical fit and comfort, and in certain examples, incorporates a concave chin cup that stabilizes the device by engaging the underside, lateral, and forward-facing portions of the chin. This arrangement helps to minimize slippage and distribute pressure evenly, improving both security and comfort for the patient.

[0011] Connected to the head engaging portion is a drape retracting portion, which projects anteriorly to lift and support the surgical drape away from the patient’s nose and mouth. The drape retracting portion may take the form of a post, which can be linear, tubular, or curved, and may include a tip designed to either reduce friction with the drape or enhance grip, for example through the use of a convex shape or adhesive. In some examples, the drape retracting portion comprises a duckbill structure with a hyperbolic paraboloid, triangular, polygonal, or rounded shape, providing additional surface area and rigidity for drape support. The combination of these elements forms a cavity between the drape, the patient’s face, and the retractor, which can be used to contain and manage the flow of oxygen and carbon dioxide around the patient’s airway.

[0012] The system further includes a fastening portion that secures the device to the patient. In some embodiments, the fastening portion comprises holes on the left and right sides of the frame through which an adjustable strap is threaded. The strap may be elastic and equipped with aglets to prevent accidental disconnection, and alternative fastening mechanisms such asadhesives or snap-fit connectors may also be used. The frame, which connects the head engaging and drape retracting portions, is typically positioned to provide structural rigidity and maintain spacing, and may be formed with a concave shape or increased thickness for added strength.

[0013] Integrated into the device are an oxygen delivery portion and a carbon dioxide capture portion. The oxygen delivery portion provides fluid communication from an external oxygen source to the patient’s nostrils, typically via a port, supply tubing, and a universal or threaded connector. The carbon dioxide capture portion is configured to capture exhaled carbon dioxide from the patient’s nostrils, using a similar arrangement of a port, monitoring line, and connector compatible with standard monitoring equipment. These gas management features may be positioned on the drape retracting portion or molded into the duckbill, and can be arranged to provide direct and efficient delivery and capture of respiratory gases within the cavity formed by the device and drape.

[0014] The surgical drape retractor system may be manufactured as a single unitary component or as a set of discrete components that are attached or bonded together. Suitable materials include plastics such as polypropylene, polyethylene, ABS, or polycarbonate, as well as resins, rubbers, metals, foams, composites, ceramics, or bioplastics. The device may be produced using injection molding or other molding techniques, and may be offered in multiple sizes or as a universal fit to accommodate a range of patient anatomies. In some embodiments, the system is provided as a kit that includes both the retractor and a surgical drape, further streamlining the preparation process. The device may also be used in conjunction with a nasal cannula if desired.

[0015] By integrating drape retraction, secure anatomical engagement, adjustable fastening, and respiratory gas management into a single device, the disclosed system improves workflow efficiency, enhances patient comfort, reduces the risk of skin irritation, and provides a more stable and effective solution for maintaining a clear surgical field during ophthalmic and other procedures. Unlike existing surgical drape retractors, which merely lift a drape, and unlike nasal cannulas that separately manage respiratory gases, the disclosed system uniquely integrates drape retraction, anatomical head engagement, and respiratory gas delivery and capture into a single, unified device. No known prior devices simultaneously stabilize the drape, conform to the chin, and provide both oxygen delivery and carbon dioxide capture within a defined cavity adjacent the patient’s airway. The combination of drape support + oxygen delivery + CO2 capture in one device eliminates the need for separate attachment andadjustment of nasal cannulas and independent drape retractors. This significantly reduces setup time and addresses workflow inefficiencies not solved by prior devices.

[0016] Various features and configurations described herein may be combined as appropriate to address the needs of different surgical environments and patient populations.

[0017] BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present embodiments are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which like reference numerals refer to similar elements and in which:

[0019] FIG. 1 is a side cross-sectional view of a patient prepared for ophthalmic surgery, showing a surgical drape retractor positioned beneath the surgical drape adjacent to the patient’s lower face. The device comprises a head engaging portion contoured to cradle the patient’s chin, a drape retracting portion projecting anteriorly to lift the surgical drape away from the nose and mouth, a rigid frame providing structural support and spacing, and a fastening portion extending laterally for strap attachment. Integrated oxygen delivery and carbon dioxide capture portions are oriented toward the nostril region within the cavity formed by the drape and device. Coordinate axes indicate anatomical directions.

[0020] FIG. 2 is a closeup view of a side cross-sectional view of a patient fitted with a surgical drape retractor supporting a surgical drape and providing integrated oxygen delivery and carbon dioxide capture near the patient’s nostrils.

[0021] FIG. 3 is a perspective view of a patient fitted with the surgical drape retractor, highlighting the cavity formed between the drape, retractor, and patient face that contains delivered oxygen and captures exhaled carbon dioxide. The chin cup conforms to the patient’s chin, with a frame supporting the anterior drape retracting duckbill, and adjustable strap-fastening holes positioned laterally. Oxygen and carbon dioxide ports with respective connectors interface with external supply and monitoring lines.

[0022] FIG. 4 is a perspective view of the surgical drape retractor illustrating a chin-mounted head engaging portion, a curved frame extending upward to support a laterally broad duckbill drape retracting portion, multiple vertical strap holes for fastening, and integrated oxygen delivery and carbon dioxide capture ports positioned on the duckbill underside.

[0023] FIG. 5 is a front perspective view of a surgical drape retractor showing a chin-engaging portion, a drape-supporting duckbill portion, and integrated oxygen delivery and carbon dioxide capture ports.

[0024] FIG. 6 is a perspective view of a surgical drape retractor showing the chin cup contoured to cradle the chin, broad duckbill drape support forming a cavity above the nose and mouth, strapholes arranged on lateral frame periphery, and adjacent oxygen and carbon dioxide ports integrated into the device.

[0025] FIG. 7A is a perspective view of a surgical drape retractor showing the integrated oxygen delivery and carbon dioxide capture portions oriented in an inline and centered orientation. FIG. 7B is a front perspective view of the surgical drape retractor showing the integrated oxygen delivery and carbon dioxide capture portions oriented in an inline and centered orientation.

[0026] FIG. 8 is a side view of a patient wearing a surgical drape retractor positioned on the chin with a forwardly extending drape-retracting post.

[0027] FIG. 9 is a perspective view of a surgical drape retractor showing a chin-engaging portion with strap fastening holes and an elongated drape-retracting post.

[0028] FIG. 10 is a side view of a patient wearing a surgical drape retractor positioned on the chin with an anteriorly extending drape-supporting post adjacent the nose.

[0029] FIG. 11 is a perspective view of a surgical drape retractor showing a chin-mounted head engaging portion with integrated drape retracting, fastening, oxygen delivery, and carbon dioxide capture features. The surgical drape retractor is illustrated with an interface for attachment to a removable elongated drape-retracting post.

[0030] DETAILED DESCRIPTION

[0031] Before the present compositions, articles, devices, and / or methods are disclosed and described, it is to be understood that the aspects described below are not limited to specific methods as such may, of course, vary. It is also to be understood that the terminology used herein is for the purpose of describing particular aspects only and is not intended to be limiting.

[0032] The foregoing description of various aspects, embodiments, and features is intended to illustrate, but not to limit, the scope of the embodiments. It will be appreciated by those skilled in the art that various features disclosed herein may be combined or modified without departing from the spirit and scope of the embodiments. Unless otherwise indicated, the description of an embodiment is not meant to restrict the embodiment to that specific form, and all variations, modifications, and combinations within the scope of the appended claims are contemplated. Any reference to “an embodiment,” “example,” or “aspect” means that a particular feature, structure, or characteristic described in connection with that embodiment may be included in one or more other embodiments, alone or in combination, unless explicitly stated otherwise. The embodiment encompasses all such permutations and equivalents thereof.

[0033] For purposes of reading the description of the various implementations below, the following descriptions of the sections of the Specification and their respective contents may be helpful:FIG. l is a side view of a patient prepared for ophthalmic surgery, illustrating a surgical drape retractor supporting a surgical drape near the patient’s face. The surgical drape retractor 10 is mounted under the drape at the lower face region. The surgical drape retractor 10 includes a head engaging portion 100, a drape retracting portion 200, a fastening portion 300, a frame 400, a oxygen delivery portion 500, and a carbon dioxide capture portion 600). In use, the head engaging portion 100 and the fastening portion 300 cooperate to secure the surgical drape retractor 10 onto the patient 20 in the X-direction (left to right), Y-direction (anterior to posterior), and Z-direction (inferior to superior). Subsequent paragraphs will discuss each group of components in further detail.

[0034] The head engaging portion 100, as illustrated in FIG. 1, is configured to engage and support a region of the patient’s head and face to stabilize the surgical drape retractor 10 during use. The term “head engaging portion,” as used herein, refers to a structural component of the system that is shaped and arranged to contact, conform to, and support at least a portion of the patient’s head or facial anatomy, thereby providing a secure and stable mounting location for the device while minimizing unwanted movement during a procedure. The head engaging portion 100 may be contoured, molded, or otherwise formed to correspond to anatomical features such as the chin, jaw, cheeks, mouth, upper or lower lip, nose, forehead, neck, or any combination thereof. Examples of the head engaging portion may include, without limitation, a concave chin cup, a molded facial support, a flexible or semi-rigid anatomical cradle, or other engagement features that are adapted to distribute pressure and maintain the device in a desired position on the patient’s anatomy. In some embodiments, the head engaging portion 100 is configured to reduce slippage and enhance comfort by distributing contact forces over a broad area of skin, and may be fabricated from materials selected to provide flexibility, pliability, or cushioning. The head engaging portion 100 may further cooperate with other components of the system, such as the fastening portion 300, to secure the device in multiple spatial directions and to accommodate a range of patient anatomies. The drape retracting portion 200 is operatively connected to the head engaging portion 100 and is configured to project anteriorly from the patient’s face, thereby lifting and supporting the surgical drape 30 away from the patient’s nose and mouth to create an unobstructed region for breathing and surgical access. The term “drape retracting portion” generally refers to any extension or structure that is adapted to maintain a separation between the surgical drape and the patient’s facial features. Examples of the drape retracting portion may include, without limitation, a post, a duckbill, or a curved extension that elevates the drape in the anterior direction. The frame 400 is positioned between the head engaging portion 100 and the drape retracting portion 200, and is configured to providestructural support, spacing, and rigidity to the overall device. The term “frame,” as used herein, refers to a load-bearing element that connects and spaces apart other portions of the system while maintaining the desired orientation and mechanical stability. Examples of the frame may include, without limitation, a concave or thickened structural member, a molded rib, or a rigid support element that extends between the head engaging and drape retracting portions. Together, these components cooperate to engage the patient’s anatomy, maintain the surgical drape in a spaced relationship from the face, and provide the necessary rigidity and stability for reliable operation during ophthalmic procedures.

[0035] In preparation for surgery, the surgical drape retractor 10 is mounted and fastened to a patient 20, as shown in FIG. 1 and FIG. 2. In some embodiments, an oxygen (02) supply line and a carbon dioxide (CO2) monitoring line may be connected to the surgical drape retractor 10 prior to placement of the surgical drape 30. Once the device is secured, the surgical drape 30 is drawn over the patient 20 such that the surgical drape retractor 10 is positioned beneath the drape and adjacent to the patient’s lower face region. The surgical drape retractor 10 contacts and supports the surgical drape 30, thereby spacing the drape away from the patient’s nostrils 24 and mouth to maintain an unobstructed airway and facilitate access to the surgical site. The arrangement of the drape retractor 10, the patient’s facial anatomy, and the overlying surgical drape 30 defines a cavity 700, as illustrated in FIG. 2, which is configured to substantially contain and direct the flow of oxygen delivered to the patient and to substantially capture exhaled carbon dioxide for monitoring. The cavity 700 provides a controlled environment in which respiratory gases may be efficiently managed during the procedure, with the oxygen delivery portion supplying 02 into the cavity and the carbon dioxide capture portion facilitating removal of exhaled CO2 from the cavity 700. This configuration supports both patient safety and surgical workflow by integrating respiratory gas management with surgical drape retraction in a single device.

[0036] The surgical drape retractor 10, as shown in FIG. 1 and FIG. 2, includes a head engaging portion 100 configured to engage a patient’s head 21 and face 22, providing a stable mounting region that conforms to the patient’s anatomy to minimize movement during use. The drape retracting portion 200, illustrated in FIG. 1 and FIG. 2, is operatively connected to the head engaging portion 100 and is configured to distance a surgical drape 30 from a portion of the patient’s head 20, thereby creating a space above the patient’s airway and facial features to facilitate unobstructed breathing and surgical access. The fastening portion 300, depicted in FIG. 1 and FIG. 2, is connected to the head engaging portion 100 and is configured to fasten the device to the patient’s face 22, securing the retractor in position and accommodating a range of patientanatomies through adjustable or alternative fastening mechanisms. These components cooperate to maintain the surgical drape in a spaced relationship relative to the patient’s face while providing secure and comfortable engagement with the patient’s head, supporting both patient safety and surgical workflow.

[0037] In some examples, as shown in FIG. 1, FIG. 3, FIG. 4, FIG. 5, FIG. 6, FIG. 7A, and FIG. 7B, the surgical drape retractor 10 includes a frame 400 positioned between the head engaging portion 100 and the drape retracting portion 200. The frame 400 is configured to connect the head engaging portion 100 and the drape retracting portion 200, thereby providing structural integrity and maintaining a fixed spatial relationship between these portions. The frame 400 may also connect the fastening portion 300 to the head engaging portion 100 and the drape retracting portion 200, enabling secure attachment of the fastening mechanism while distributing mechanical loads across the device. In some embodiments, the frame 400 is arranged to distance the head engaging portion 100 from the drape retracting portion 200, establishing a defined separation that supports the elevation of the surgical drape above the patient’s face. The frame 400 may further be configured to distance the fastening portion 300 from the patient’s face 22, which may reduce localized pressure and enhance patient comfort by minimizing direct contact between the fastening elements and the skin. The frame 400 may be formed with a concave or contoured profile to follow the anatomical curvature of the patient’s lower face and chin, and may have a thickness or rigidity that differs from adjacent portions to optimize both strength and flexibility. In some embodiments, the frame 400 is fabricated from a material selected to provide sufficient rigidity for maintaining the orientation of the drape retracting portion 200, while allowing the head engaging portion 100 to remain flexible or compliant for improved comfort. The arrangement of the frame 400 within the device supports the overall stability of the surgical drape retractor 10 during use and facilitates integration of the fastening, drape retracting, and head engaging portions into a unified structure.

[0038] The oxygen delivery portion 500, as illustrated in FIG. 2, FIG. 3, FIG. 4, FIG. 5, FIG. 6, FIG.

[0039] 7 A, and FIG. 7B, is configured to provide fluid communication from an oxygen source 550 to the patient’s nostrils 24. The oxygen delivery portion 500 includes a port 510 that is arranged to direct oxygen toward the region adjacent the patient’s nostrils, facilitating efficient delivery of supplemental oxygen during surgical procedures. The port 510 is connected to an oxygen delivery and supply tubing 520, which may be flexible and compatible with standard oxygen supply equipment. In some embodiments, the oxygen delivery portion 500 further comprises a male connector 530 that may have a barbed shape, where the barbs are configured to engagewith the inner surface of a corresponding female connector on the oxygen supply tubing 520 to provide a secure attachment and minimize the risk of disconnection during use. The barbs may be spaced along the length of the connector to enhance retention and accommodate variations in tubing diameter. In some embodiments, the male connector 530 may alternatively include a ribbed, threaded, or tapered configuration, each of which may be selected to provide compatibility with different types of oxygen supply tubing and to facilitate a reliable and leakresistant connection. The arrangement of the oxygen delivery portion 500 may be selected to optimize the flow of oxygen into a cavity formed between the surgical drape, the patient’s face, and the drape retracting portion, thereby supporting patient respiration and maintaining a controlled environment for gas exchange during the procedure. In some examples, as illustrated in FIGS. 7A and 7B, the oxygen delivery portion 500 is centered within the drape retracting portion 200, such that the port 510 is positioned equidistant from the lateral edges of the drape retracting portion 200. This arrangement may facilitate direct alignment of the oxygen delivery port with the patient's nostrils when the device is mounted, supporting efficient and uniform distribution of oxygen within the cavity formed between the drape, the patient's face, and the drape retracting portion. The centered configuration may also optimize the integration of the oxygen delivery portion 500 with other components, such as the carbon dioxide capture portion 600, and may contribute to balanced support and stability of the drape retracting portion 200 during use.

[0040] The carbon dioxide capture portion 600, as illustrated in FIG. 2, FIG. 3, FIG. 4, FIG. 5, FIG.

[0041] 6, FIG. 7A, FIG. 7B, and FIG. 11, is configured to capture carbon dioxide exhaled from the patient’s nostrils 24. The carbon dioxide capture portion 600 includes a port 610 that is arranged to receive exhaled gas from the region adjacent the patient’s nostrils. The port 610 is connected to a carbon dioxide monitoring line 620, which provides a pathway for the exhaled carbon dioxide to be transported from the port 610 to external carbon dioxide monitoring equipment. In some embodiments, the carbon dioxide capture portion 600 further comprises a male connector 630, which is shaped and sized to engage a corresponding female connector on the carbon dioxide monitoring line 620, facilitating secure attachment and compatibility with a variety of monitoring systems. In some examples, the connector 630 is threaded. In other examples, the connector 630 may be formed as a barbed, ribbed, or tapered connector to provide compatibility with various types of carbon dioxide monitoring lines. The connector 630 may also be configured as a universal connector, a quick-connect fitting, or a press-fit connector to accommodate different equipment standards and facilitate secure attachment and detachment during clinical use. The arrangement of the carbon dioxide capture portion 600may be selected to optimize the capture of exhaled gas within a cavity formed between the surgical drape, the patient’s face, and the drape retracting portion, thereby supporting accurate monitoring of the patient’s respiratory status during surgical procedures. In some examples, the carbon dioxide capture portion 600 is positioned on the drape retracting portion 200 or molded into a duckbill 220, allowing the port 610 to be located in close proximity to the patient’s nostrils for efficient gas capture. The configuration of the carbon dioxide capture portion 600 may be adapted to accommodate different patient anatomies and procedural requirements, ensuring reliable operation across a range of clinical scenarios. In some examples, as illustrated in FIGS. 7A and 7B, the carbon dioxide capture portion 600 is centered within the drape retracting portion 200, such that the port 610 is positioned equidistant from the lateral edges of the drape retracting portion 200. This arrangement may facilitate direct alignment of the carbon dioxide capture port with the patient's nostrils when the device is mounted, supporting efficient and uniform capture of carbon dioxide within the cavity formed between the drape, the patient's face, and the drape retracting portion. The centered configuration may also optimize the integration of the carbon dioxide capture portion 600 with other components, such as the oxygen delivery portion 500, and may contribute to balanced support and stability of the drape retracting portion 200 during use. In some examples, the oxygen delivery portion 500 is positioned between the carbon dioxide capture portion 600 and the head engaging portion 100. In some examples, the carbon dioxide capture portion 600 is positioned between the oxygen delivery portion 500 and the head engaging portion 100.

[0042] The head engaging portion 100, as illustrated in FIG. 1, FIG. 2, FIG. 3, FIG. 4, FIG. 5, FIG. 6, FIG. 7A, FIG. 7B, FIG. 8, FIG. 9, FIG. 10, and FIG. 11, is configured to engage a patient’s face 22 and to provide a stable mounting interface for the surgical drape retractor 10 during use. The head engaging portion 100 contacts the patient’s skin and is shaped to conform to anatomical features of the face, such as the chin, j awline, or adjacent facial regions, to promote secure positioning and minimize unwanted movement. In use, the head engaging portion 100 and the fastening portion 300 cooperate to secure the surgical drape retractor 10 onto the patient 20 in the X-direction (left to right), Y-direction (anterior to posterior), and Z-direction (inferior to superior). The configuration of the head engaging portion 100 may be adapted to distribute contact forces over a broad area of skin, thereby reducing localized pressure points and enhancing patient comfort. In some embodiments, the head engaging portion 100 is fabricated from a flexible or pliable material to further improve conformity to the patient’s facial contours and to accommodate variations in anatomy. The arrangement of the head engaging portion 100, in conjunction with the fastening portion 300, supports reliable retention of the devicethroughout the duration of the surgical procedure and assists in maintaining the intended spatial relationship between the surgical drape, the patient’s airway, and the retractor system.

[0043] In some examples, the head engaging portion is molded to conform to the shape of the human face. Conforming to the shape of the human anatomy may improve patient comfort because the molded shape matches the contours and profile of the human face, which may minimize localized areas of increased pressure on the patient’s skin. By distributing pressure across a larger surface area, the head engaging portion may reduce the likelihood of discomfort or skin irritation during use. In some embodiments, the molded configuration of the head engaging portion may also enhance the stability of the surgical drape retractor by reducing slippage or movement relative to the patient’s skin. The anatomical conformity may facilitate rapid and accurate positioning of the device on the patient’s face, which may improve workflow efficiency in surgical settings and reduce the need for repeated adjustments. Additionally, the head engaging portion may be fabricated from materials selected to provide flexibility or cushioning, further supporting comfort and secure engagement with a variety of patient anatomies. The combination of anatomical conformity and material selection may enable the surgical drape retractor to maintain a stable position throughout the procedure while minimizing patient discomfort and supporting reliable operation.

[0044] Conforming to the shape of the human anatomy reduces slippage between the surgical drape retractor 10 and the patient’s skin. Distributing pressure across a larger area of skin also improves tactility and adhesion to the patient’s skin and reduces slippage or movement of the surgical drape retractor 10. In some embodiments, the anatomical conformity of the head engaging portion enables the device to maintain a stable position even when the patient’s facial features vary, such as differences in chin prominence, jawline contour, or cheek structure. By matching the contours of the patient’s face, the device may achieve enhanced surface contact, which may further minimize localized pressure points and promote uniform load distribution. This configuration may be particularly advantageous during lengthy procedures, as it may reduce the likelihood of device migration or the need for intraoperative adjustment. Additionally, improved adhesion and reduced slippage may contribute to maintaining a consistent spatial relationship between the surgical drape, the patient’s airway, and the retractor, thereby supporting both patient safety and surgical workflow.

[0045] Conforming to the shape of the human anatomy improves setup time. For example, the surgical drape retractor 10 may be rapidly positioned in the intended location on the patient’s face with minimal adjustment, which may enhance workflow efficiency during surgical procedures. In some embodiments, the anatomical conformity of the device enables the surgical staff to alignand secure the retractor 10 without the need for repeated repositioning, as the molded contours guide the device into the correct orientation relative to the patient’s facial features. This may reduce the overall preparation time required prior to draping and may support a more streamlined surgical workflow. Additionally, the ability to achieve a consistent and reproducible fit across a range of patient anatomies may further minimize intraoperative interruptions associated with device slippage or discomfort, thereby supporting both patient safety and procedural efficiency.

[0046] In some examples, the head engaging portion 100 includes a chin cup 110, as illustrated in FIG.

[0047] 2, FIG. 3, FIG. 4, FIG. 5, FIG. 6, FIG. 7A, and FIG. 7B. The chin cup 110 is formed with a concave shape that is configured to engage and cradle a patient’s chin 26, providing a stable mounting interface for the surgical drape retractor. The concave geometry of the chin cup 110 may be adapted to conform to the anatomical contours of the underside, lateral, and forwardfacing regions of the chin, thereby distributing contact forces over a broad area and minimizing localized pressure points. This arrangement may inhibit slippage of the device in multiple spatial directions and enhance patient comfort during use. In some embodiments, the chin cup 110 is fabricated from a flexible or pliable material to further improve conformity to the patient’s anatomy and accommodate variations in chin shape and size. The engagement of the chin cup 110 with the patient’s chin 26 may also cooperate with other components, such as the fastening portion 300, to secure the device in position and maintain the intended spatial relationship between the surgical drape, the patient’s airway, and the retractor system throughout the duration of the procedure.

[0048] In some examples, the head engaging portion 100 is not limited to a chin cup 110 and may include any structure configured to engage a region of the patient’s head or face to stabilize the surgical drape retractor 10. For example, the head engaging portion 100 may include a molded support that conforms to the jawline, a contoured pad that engages the cheeks, a flexible cradle that seats against the upper or lower lip, a curved extension that rests along the nose or forehead, or a band that wraps partially around the neck. In some embodiments, the head engaging portion 100 may combine multiple engagement features, such as a chin cup with lateral cheek supports or a jawline cradle with a forehead contact region, to provide additional stability and accommodate variations in patient anatomy.

[0049] In some examples, the head engaging portion 100 anatomically engages and stabilizes one or more regions of a patient’s head or face. The one or more regions include but is not limited to chin, cheeks, jaw, lips, nose, forehead, neck, scalp, temple, or combinations thereof, without limitation to concavity or specific cup geometry.In some examples, it is preferred that the surgical drape retractor 10 is positioned as far as possible from the surgical site while concurrently being close to the nose 23 of the patient 20. This arrangement allows the device to provide an unobstructed working area for the surgeon by maximizing the available space between the surgical drape and the operative field. A head engaging portion 100 that includes a chin cup 110 may be configured to engage the underside, lateral, and forward-facing regions of the patient’s chin 26, thereby providing a secure and stable region on the patient’s face 22 to mount the surgical drape retractor 10. By positioning the device on the chin, the retractor may be maintained at a relatively close distance to the nose 23 of the patient 20, which facilitates efficient delivery of oxygen to the patient’s airway through the integrated oxygen delivery portion 500. At the same time, the placement of the device away from the surgical site, such as the eye region in ophthalmic procedures, ensures that the retractor does not interfere with the surgeon’s access or visibility. This configuration may also reduce the likelihood of accidental contact between surgical instruments and the retractor, further supporting a clear and stable operative field. The combined effect of these features is to provide sufficient room for the surgeon to perform surgery while maintaining the necessary proximity to the patient’s nose for respiratory gas management. In some embodiments, the chin cup 110 may be contoured or padded to enhance comfort and stability, and the overall geometry of the head engaging portion 100 may be adapted to accommodate variations in patient anatomy while ensuring reliable positioning of the surgical drape retractor 10 throughout the procedure.

[0050] In some examples, as illustrated in FIG. 2, FIG. 3, FIG. 4, FIG. 5, FIG. 6, FIG. 7A, and FIG.

[0051] 7B, the chin cup 110 is configured to contact an underside, lateral side portions, a forwardfacing portion of the patient’s chin 26, or a combination thereof. The chin cup 110 may be contoured to conform to the anatomical curvature of the chin, thereby providing a stable interface that resists displacement in multiple directions. In certain embodiments, the chin cup 110 is shaped to cradle the underside of the chin while extending laterally to engage the sides of the chin, and may further include a forward-facing surface that abuts the anterior aspect of the chin. This configuration may inhibit movement of the device in the left-right, anterior-posterior, and inferior-superior directions. The engagement of the chin cup 110 with these regions of the chin may distribute contact forces across a broad area, reducing localized pressure and enhancing comfort for the patient. In some embodiments, the chin cup 110 is fabricated from a pliable or cushioned material to further improve conformity to the patient’s anatomy and minimize the risk of slippage or discomfort during use. The design of the chincup 110 may be adapted to accommodate variations in chin size and shape, supporting secure and consistent positioning of the surgical drape retractor across a range of patient anatomies. In some examples, as illustrated in FIG. 2, FIG. 3, FIG. 4, FIG. 5, FIG. 6, FIG. 7A, and FIG.

[0052] 7B, the chin cup 110 is configured to contact both an underside, lateral side portions, and a forward-facing portion of the patient’s chin 26. This multi-surface engagement may provide a stable interface that distributes contact forces across a broad region of the chin, which may reduce localized pressure and enhance comfort during use. By engaging the underside, lateral, and forward-facing portions of the chin, the chin cup 110 may inhibit displacement of the surgical drape retractor in multiple spatial directions, including the X-direction (left to right), Y-direction (anterior to posterior), and Z-direction (inferior to superior). Such a configuration may be particularly advantageous in maintaining the intended position of the device throughout a surgical procedure, even in the presence of patient movement or adjustments to the surgical drape. In some embodiments, the chin cup 110 may be contoured or padded to further conform to variations in chin anatomy, thereby supporting a secure fit for a wide range of patients. The cooperation between the chin cup 110 and other components of the head engaging portion 100 may facilitate reliable retention of the surgical drape retractor and contribute to the overall stability and effectiveness of the system during clinical use.

[0053] The head engaging portion 100 is not limited to a chin cup 110 and may include one or more components configured to physically engage regions of the patient’s anatomy. In some examples, includes flexible cradles, pads, or adjustable supports. In some examples, the head engaging portion 100 may be shaped or contoured to engage the patient’s mouth, cheeks, jaw, upper lip, lower lip, lips, nose, forehead, neck, or any combination of these regions, as well as positions intermediate to these anatomical landmarks. The configuration of the head engaging portion 100 may be adapted to conform to the contours of the selected region or regions, thereby providing a stable interface for mounting the surgical drape retractor 10. For example, the head engaging portion 100 may include molded or padded surfaces that are shaped to cradle the jawline, cup the cheeks, or rest against the forehead or neck, depending on the intended application and patient anatomy. In some embodiments, the head engaging portion 100 may incorporate multiple engagement surfaces or adjustable features to accommodate variations in patient size, shape, or surgical requirements. This versatility allows the surgical drape retractor 10 to be positioned on different areas of the face or head, or in a manner that engages multiple regions simultaneously, thereby supporting secure retention and minimizing the risk of slippage or discomfort during use. The design may also facilitate rapid and reproducible placement of the device, supporting workflow efficiency and adaptability across a range of clinical scenarios.The drape retracting portion 200, as illustrated in FIG. 1, FIG. 2, FIG. 3, FIG. 4, FIG. 5, FIG.

[0054] 6, FIG. 7A, FIG. 7B, FIG. 8, FIG. 9, FIG. 10, and FIG. 11, is connected to the head engaging portion 100. In use, the drape retracting portion 200 is configured to distance a surgical drape 30 from a portion of the patient’s head. The drape retracting portion 200 may extend anteriorly from the head engaging portion 100 and is arranged to contact and support the surgical drape 30, thereby maintaining a separation between the drape and the patient’s facial features such as the nose and mouth. This configuration creates a space beneath the drape that facilitates unobstructed breathing and surgical access. The drape retracting portion 200 may be formed as a post, duckbill, or other structural extension, and may be shaped to optimize the elevation and stability of the drape during use. In some embodiments, the geometry and material properties of the drape retracting portion 200 are selected to provide sufficient rigidity for supporting the drape while accommodating variations in patient anatomy and surgical requirements. The arrangement of the drape retracting portion 200 in relation to the head engaging portion 100 supports the overall function of the device by ensuring that the surgical drape is reliably spaced away from the patient’s airway and operative field.

[0055] The drape retracting portion 200, as illustrated in FIG. 2, FIG. 3, FIG. 4, FIG. 5, FIG. 6, FIG.

[0056] 7 A, FIG. 7B, FIG. 8, FIG. 9, FIG. 10, and FIG. 11, includes an extension that projects in the Y-direction, corresponding to the anterior to posterior orientation, and is spaced away from the patient’s face 22. In use, when the surgical drape 30 is positioned over the patient’s face 22, the drape retracting portion 200 is arranged to contact the surgical drape 30 and elevate it in the Y-direction, thereby lifting the surgical drape 30 and positioning it away from the patient’s nostrils 24. The extension of the drape retracting portion 200 may be configured as a post, duckbill, or other structural feature, and may possess a geometry selected to optimize the elevation and support of the drape. In some embodiments, the drape retracting portion 200 is dimensioned to provide a defined clearance above the patient’s airway, facilitating unobstructed respiration and access to the surgical site. The arrangement of the drape retracting portion 200, in combination with the head engaging portion 100 and frame 400, may be adapted to accommodate variations in patient anatomy and surgical requirements, ensuring that the surgical drape 30 remains reliably spaced from the patient’s facial features throughout the procedure. This configuration may also contribute to the formation of a cavity between the drape, the patient’s face, and the drape retracting portion 200, which may be used to manage the flow of respiratory gases during surgery.

[0057] In some examples, as illustrated in FIG. 2, FIG. 8, and FIG. 10, the drape retracting portion 200 elevates the surgical drape 30 in the Y-direction such that the surgical drape 30 is positionedaway from both the patient’s nostrils 24 and lips 28. The drape retracting portion 200 may be dimensioned and oriented to provide a clearance above the patient’s airway, thereby creating an unobstructed space for respiration and facilitating access to the surgical site. This spatial separation may reduce the risk of the drape contacting or obstructing the patient’s nose or mouth during the procedure. In certain embodiments, the drape retracting portion 200 is configured to maintain the surgical drape 30 at a height that allows for the formation of a cavity between the drape, the patient’s face, and the drape retracting portion, supporting the management of respiratory gases within this region. The arrangement of the drape retracting portion 200 may be adapted to accommodate variations in patient anatomy, surgical positioning, or drape material, ensuring that the drape remains reliably spaced from the nostrils and lips throughout the duration of the procedure.

[0058] In some examples, the drape retracting portion 200 extends a distance of 2 to 3 inches in the Y-direction away from the head engaging portion 100. This extension is configured to provide a defined clearance between the surgical drape and the patient’s facial features, supporting the drape in a position that maintains an unobstructed airway and facilitates surgical access. Accordingly, in use, the drape retracting portion 200 elevates the surgical drape a distance of approximately 2 to 3 inches above the patient’s nose and mouth, creating a space that reduces the likelihood of the drape contacting or obstructing the patient’s airway. In some embodiments, the drape retracting portion 200 is dimensioned such that the surgical drape 30 may rest upon the tip of the patient’s nose 23 and cheeks 25, providing both support for the drape and stability for the device. In other embodiments, the drape retracting portion 200 extends a distance from the head engaging portion 100 such that the end of the drape retracting portion 200 is positioned at a location in the Y-direction that is substantially aligned with the patient’s nose 23. This arrangement may be selected to optimize both the elevation of the drape and the proximity of integrated features, such as oxygen delivery and carbon dioxide capture ports, to the patient’s nostrils. The specific distance that the drape retracting portion 200 extends may be varied to accommodate differences in patient anatomy, surgical positioning, or procedural requirements, ensuring that the device provides reliable drape support and airway clearance across a range of clinical scenarios. In some embodiments, the geometry of the drape retracting portion 200 may be further adapted to provide additional clearance above the patient’s nose, such as by extending the portion more than 3 inches or by incorporating a curved or angled configuration that positions the drape at a greater height or distance from the face. The spatial relationship established by the drape retracting portion 200, in combination with the head engaging portion100, supports the formation of a cavity between the drape, the patient’s face, and the retractor, which may be used for the delivery and capture of respiratory gases during surgery.

[0059] In some examples, the drape retracting portion 200 elevates the surgical drape 30 a distance of greater than 3 inches. In certain embodiments, the drape retracting portion 200 is dimensioned and oriented to position the surgical drape 30 at a height that allows the drape to be spaced above the tip of the patient’s nose 23, thereby creating a clearance that supports unobstructed airflow and access to the patient’s airway. The elevation provided by the drape retracting portion 200 may be selected based on patient anatomy, surgical requirements, or drape material, and may be adapted to ensure that the drape does not contact or rest directly upon the patient’s nose or mouth. In some configurations, the drape retracting portion 200 is shaped or contoured to maintain the drape at a consistent height above the facial features, which may facilitate the formation of a cavity for respiratory gas management and reduce the likelihood of the drape shifting during the procedure. The spatial separation established by the drape retracting portion 200 may be further optimized to accommodate variations in patient positioning or surgical technique, supporting both patient comfort and procedural efficiency.

[0060] In some examples, the drape retracting portion 200 has a length effective to separate a surgical drape from at least a portion of the patient’s face. In some examples, the drape retracting portion 200 has a length that is similar to the length of the patient's nose. In some examples, the drape retracting portion 200 has a length that preserves a fluidic volume of the cavity 700 that is necessary to perform the surgical procedure.

[0061] FIG. 8 illustrates an embodiment in which the drape retracting portion 200 includes a post 210 that extends away from the head engaging portion 100. The post 210 may be configured in a variety of shapes, including a substantially linear, semicylindrical tubular, or tubular form, and is dimensioned to project anteriorly from the head engaging portion 100 to support and elevate the surgical drape above the patient’s nose and mouth. The orientation and length of the post 210 may be selected to provide an optimal clearance between the surgical drape and the patient’s facial features, thereby facilitating unobstructed breathing and surgical access. In some embodiments, the post 210 is positioned to extend parallel to the Y-direction, or may be angled toward the patient’s nose to accommodate variations in patient anatomy or surgical requirements. The tip 212 of the post 210 may be configured with a friction reducing or friction enhancing surface, such as a convex shape or an adhesive, to either allow the drape to move relative to the device or to inhibit such movement as needed. The post 210 may be fabricated from a material selected to provide sufficient rigidity for drape support while maintaining compatibility with the overall structure of the drape retracting portion 200. This configurationenables the drape retracting portion 200 to reliably maintain the surgical drape in a spaced relationship from the patient’s airway, supporting both patient safety and procedural efficiency. The distance that the drape retracting portion 200 elevates the surgical drape 30 may vary based on the age, size, anatomy, or other patient-specific characteristics, as well as the requirements of the particular medical procedure being performed. As illustrated in FIG. 8, FIG. 9, and FIG.

[0062] 10, the drape retracting portion 200 may be dimensioned and oriented to provide sufficient clearance between the surgical drape 30 and the patient’s facial features, such as the nose and mouth, to accommodate a range of anatomical variations and procedural needs. In some embodiments, the length and angle of the drape retracting portion 200 may be selected to ensure that the surgical drape 30 is reliably elevated above the airway region, thereby supporting unobstructed breathing and surgical access. The adaptability of the drape retracting portion 200, as shown in these figures, allows the device to be used effectively across a diverse patient population and for different types of surgical interventions.

[0063] In some examples, the post 210 has a substantially linear shape, as illustrated in FIG. 8, FIG.

[0064] 9, and FIG. 10. The post 210 may be configured as a long and narrow extension relative to the head engaging portion 100, projecting anteriorly to support and elevate the surgical drape above the patient’s nose and mouth. In certain embodiments, the post 210 is formed with a semicylindrical tubular shape, as depicted in FIG. 9, providing structural rigidity while maintaining a lightweight profile. In other embodiments, the post 210 may be configured with a fully tubular shape, as shown in FIG. 9 and FIG. 10, which may further enhance the strength and stability of the drape retracting portion 200. The geometry of the post 210 may be selected to optimize the elevation and support of the surgical drape, accommodate variations in patient anatomy, and facilitate integration with other components of the surgical drape retractor system.

[0065] In some examples, as illustrated in FIG. 8, FIG. 9, and FIG. 10, the post 210 extends substantially straight from the head engaging portion 100 such that the post 210 is positioned parallel to the bottom portion of the patient’s chin 26 and extends parallel to the Y-direction when in use. In other examples, as depicted in FIG. 8, the post 210 is positioned such that the post 210 is angled toward the patient’s nose 23 when in use. In these configurations, the post 210 is angled relative to the head engaging portion 100 so that the post 210 extends at an angle relative to the bottom portion of the patient’s chin 26 and at an angle relative to the Y-direction. The orientation and angle of the post 210 may be selected based on patient anatomy or procedural requirements to optimize the spacing of the surgical drape above the airway and to accommodate variations in facial structure. In some embodiments, the post 210 may beconfigured to provide a direct path for the drape retracting portion 200 to support the surgical drape in a manner that maintains a consistent and reliable clearance above the patient’s nose and mouth, as shown in the referenced figures. The ability to adjust the orientation of the post 210 enables the surgical drape retractor system to be adapted for use across a range of patient anatomies and surgical scenarios, supporting both patient comfort and procedural efficiency. In some examples, the drape retracting portion 200 has a curved shape. For example, the post 210 may be configured to curve in a direction toward the patient’s nose 23, as illustrated in FIG. 8, FIG. 9, and FIG. 10. The curvature of the post 210 may be selected to optimize the spatial relationship between the drape retracting portion 200 and the patient’s airway, facilitating reliable support and elevation of the surgical drape above the nose and mouth. This curved configuration may enhance the ability of the device to conform to variations in patient anatomy and surgical positioning, ensuring that the surgical drape is consistently maintained at a desired clearance from the facial features. In some embodiments, the curvature of the post 210 may also contribute to the formation of a cavity for oxygen delivery and carbon dioxide capture, as described in connection with the integrated gas management features of the system. The arrangement of the curved post 210 within the drape retracting portion 200 may be adapted to accommodate different drape materials, patient sizes, or procedural requirements, supporting both patient comfort and surgical workflow efficiency.

[0066] In some examples, the tip 212 of the post 210 has a friction reducing shape, surface, or texture. For example, the tip 212 of the post 210 may have a round and outwardly convex shape, as depicted in FIG. 8, FIG. 9, and FIG. 10. The tip 212 is configured to contact the surgical drape 30, and the convex geometry is selected to reduce the contact area with the surgical drape 30, thereby reducing friction between the surgical drape 30 and the post 210. This reduction in friction allows the surgical drape 30 to move relative to the surgical drape retractor 10 during use, which may reduce the transmission of tugging or pulling forces from the drape to the retractor. For instance, if the surgical drape 30 shifts or is manipulated during surgery, the reduced friction at the tip 212 enables the drape 30 to slide over the post 210 rather than transmitting force that could displace the surgical drape retractor 10 or cause movement of the patient’s head, which may be undesirable in the surgical setting. The configuration of the tip 212, as shown in FIG. 8, FIG. 9, and FIG. 10, may be adapted to accommodate different drape materials or surgical conditions, supporting reliable drape retraction while minimizing the risk of unintended patient movement or device displacement.

[0067] In some examples, the drape retracting portion 10 includes a friction enhancing shape, surface, or texture configured to inhibit movement of the surgical drape 30 relative to the surgical draperetractor 10. For instance, as illustrated in FIG. 8, FIG. 9, and FIG. 10, an adhesive may be positioned on the tip 212 of the post 210 to adhere the surgical drape 30 to the surgical drape retractor 10. The use of an adhesive or other friction enhancing feature at the interface between the post 210 and the surgical drape 30 may provide additional stability by reducing the likelihood of the drape shifting during a procedure. This configuration may be particularly advantageous in maintaining the intended spatial relationship between the drape and the patient’s airway, as well as supporting a consistent cavity for respiratory gas management as described in connection with other figures. In some embodiments, the friction enhancing feature may comprise a textured or patterned surface, a high-friction coating, or a material selected to increase the coefficient of friction at the contact area. The arrangement of these features, as depicted in FIG. 8, FIG. 9, and FIG. 10, may be adapted to accommodate different drape materials and procedural requirements, ensuring reliable retention of the drape throughout the duration of the surgical procedure.

[0068] In some examples, the drape retracting portion 200 may include a duckbill 220 that is laterally wider and flatter than a semicylindrical tubular post 210, as depicted in FIG. 3, FIG. 4, FIG. 5, and FIG. 6. The duckbill 220 may be formed with a hyperbolic paraboloid shape that is rounded, semicircular, and has a convex surface that gradually recedes toward the head engaging portion 100 and frame 400, as shown in FIG. 3 and FIG. 4. In some embodiments, the duckbill 220 may have a triangular or polygonal shape rather than a rounded or semicircular configuration, providing alternative geometries for supporting the surgical drape. The laterally expanded and contoured structure of the duckbill 220 may enhance the ability of the drape retracting portion 200 to support and elevate the surgical drape 30, forming a cavity above the patient’s nose and mouth for respiratory gas management. The arrangement and geometry of the duckbill 220 may be selected to optimize rigidity, drape support, and integration with other features such as the oxygen delivery portion 500 and carbon dioxide capture portion 600, as further illustrated in FIG. 3 through FIG. 6.

[0069] In some examples, the duckbill 220 is formed using a thickness of material that differs from the head engaging portion 100. For example, the duckbill 220 may have a greater material thickness than the head engaging portion 100 to provide increased rigidity and strength to the drape retracting portion 200, thereby supporting the surgical drape 30 during surgery. As illustrated in FIG. 3, FIG. 4, FIG. 5, and FIG. 6, the increased thickness of the duckbill 220 may be selected to ensure that the drape retracting portion 200 maintains its structural integrity when subjected to the weight or tension of the surgical drape 30, reducing the risk of deformation or collapse. In some embodiments, the head engaging portion 100 may be formedwith a thinner and more flexible material to enhance comfort and conformity to the patient's facial anatomy, while the duckbill 220 is configured with a thicker and more rigid construction to provide stable support for the drape. This differentiation in material thickness between the duckbill 220 and the head engaging portion 100 may optimize both patient comfort and device performance during use.

[0070] The duckbill 220 is configured to contact and support the surgical drape 30, as illustrated in FIG. 3, FIG. 4, FIG. 5, and FIG. 6, and in cooperation with the surgical drape 30 and the patient’s face 22, defines a cavity 700. This cavity 700 is formed between the underside of the surgical drape 30, the patient’s skin, and the surface of the duckbill 220 that faces the patient’s nose 23. Within this cavity 700, oxygen (02) delivered by the oxygen delivery portion 500 and carbon dioxide (CO2) exhaled by the patient 20 are substantially contained during use, as depicted in FIG. 2. The arrangement of the duckbill 220 and the surgical drape 30 inhibits the escape of 02 and CO2 into the ambient environment by providing a physical barrier at the interface between the drape retracting portion 200 and the surgical drape 30. The cavity 700 is configured to ensure that 02 is directed toward and available for inhalation by the patient 20 throughout the surgical procedure, while also facilitating the capture of exhaled CO2 by the carbon dioxide capture portion 600 for monitoring purposes. The extent and geometry of the cavity 700, as shown in the referenced figures, are selected to optimize the containment and management of respiratory gases, thereby supporting both patient safety and the effective operation of the integrated oxygen delivery and carbon dioxide capture features of the system. The surgical drape 30 contacts the duckbill 220 along the outer perimetric edge of the duckbill 220, as illustrated in FIG. 3, FIG. 4, FIG. 5, and FIG. 6. The contact between the edge of the duckbill 220 and the surgical drape 30 is configured to inhibit a free flow of 02 away from the patient’s nose 23 and the free flow of CO2 away from the CO2 capture portion 600. This arrangement forms a substantially enclosed cavity beneath the drape, which supports the management of respiratory gases by directing oxygen delivered from the oxygen delivery portion 500 toward the patient’s nostrils and by facilitating the capture of exhaled carbon dioxide by the carbon dioxide capture portion 600. The geometry and positioning of the duckbill 220, in cooperation with the surgical drape 30, are selected to maintain a controlled environment within the cavity, thereby reducing the loss of oxygen to the ambient surroundings and minimizing the escape of exhaled carbon dioxide, as further depicted in FIG. 2. This configuration may enhance the efficiency of respiratory gas delivery and capture during surgical procedures and supports the overall function of the integrated surgical drape retractor system.In some examples, the drape retracting portion 200 includes any extension or structure configured to maintain a separation between the surgical drape and the patient’s facial features. The drape retracting portion 200 may include posts, plates, arches, or other forms, and not limited to specific geometries or orientations. The drape retracting portion 200 may be formed as a post, duckbill, or other projection that extends anteriorly from the head engaging portion 100 to support and elevate the surgical drape above the nose, mouth, or other regions of the patient’s face. The geometry of the drape retracting portion 200 may be linear, curved, tubular, or shaped to provide a broad or contoured surface for drape support, and may be adapted to accommodate various patient anatomies and surgical requirements. The drape retracting portion 200 may further include features such as a friction reducing tip, a friction enhancing surface, or an adhesive region to control the interaction between the device and the surgical drape. In some embodiments, the drape retracting portion 200 is integrated with additional components, such as oxygen delivery and carbon dioxide capture ports, to facilitate respiratory gas management within a cavity formed between the drape, the patient’s face, and the retractor. The arrangement and configuration of the drape retracting portion 200 may be selected to optimize both the stability of the drape and the comfort of the patient, supporting reliable separation of the drape from the airway and surgical field during use.

[0071] In some examples, the drape retracting portion 200 extends from the head engaging portion and supports and spaces a surgical drape from a patient’s head. The drape retracting portion has a shape selected from post, plate, arch, flange, or combinations thereof, and a tip comprising a surface or feature configured to modulate friction with the surgical drape. The surface or feature to modulate frictional interaction with a surgical drape includes but is not limited to friction reducing, friction enhancing, adhesive, or textured surfaces.

[0072] In some examples, the fastening portion 300 includes holes 310 formed within the surgical drape retractor 10 and a strap 320 that is laced through at least one of the holes 310. The holes 310 are formed on the left and right sides of the frame 400, as illustrated in FIG. 3, FIG. 4, FIG.

[0073] 5, and FIG. 6. In some examples, the holes 310 are symmetrically positioned on the left and right sides of the surgical drape retractor 10 to facilitate even distribution of tension when the strap 320 is secured around the patient's head. In certain embodiments, the surgical drape retractor 10 includes multiple holes 310 on both the left and right sides to provide adjustability and improve fitment for a range of patient anatomies, as depicted in FIG. 3 and FIG. 5. This arrangement allows the strap 320 to be threaded through different holes 310 to accommodate variations in head size and shape, thereby enhancing the versatility and securement of the device during use. The configuration of the fastening portion 300, including the placement andnumber of holes 310, may be selected to optimize both ease of application and stability of the surgical drape retractor 10 throughout the duration of a surgical procedure.

[0074] In use, the strap 320 extends around the backside of the patient’s head to secure the surgical drape retractor 10 to the patient’s face 22, as illustrated in FIG. 2. In some examples, the strap 320 is elastic and allows the strap 320 to extend and contract, accommodating various head sizes and shapes while maintaining a secure fit. For example, during surgical preparation, the strap 320 may be extended over and across the backside of the patient’s head 20 when positioning the surgical drape retractor 10 onto the patient 20, as depicted in FIG. 1. The strap 320 provides tension to secure the surgical drape retractor 10 onto the patient 20, and in some embodiments, this tension aids in keeping the patient’s mouth closed, which may be desirable during certain procedures. Tension within the strap 320 is adjustable by pulling the strap 320 through the hole 310, as shown in FIG. 2, FIG. 3, FIG. 4, FIG. 5, and FIG. 6, allowing for customized fitment and securement based on individual patient anatomy and clinical requirements. The arrangement of the strap 320 and holes 310 supports rapid application and removal of the device, and the elastic nature of the strap 320 may further enhance patient comfort by distributing pressure evenly around the head. This fastening configuration enables the surgical drape retractor 10 to remain stably positioned throughout the duration of the procedure, minimizing the risk of slippage or displacement even if the patient moves or if adjustments to the surgical drape are required.

[0075] In some examples, the ends of the strap 320 include an aglet 330 that is configured to allow the ends of the strap 320 to be laced through the holes 310, as illustrated in FIG. 2, FIG. 3, FIG. 4, FIG. 5, and FIG. 6. The aglet 330 may be dimensioned to provide an obstruction that prevents the end of the strap 320 from moving fully through the hole 310, thereby inhibiting disconnection of the strap 320 from the surgical drape retractor 10 during use. For example, the aglet 330 may have a diameter that is similar in size to the holes 310, which allows the end of the strap 320 to be inserted into the hole 310 but resists withdrawal when pulled in the opposite direction, as depicted in FIG. 2. This configuration supports secure retention of the strap 320 and facilitates rapid assembly and adjustment of the fastening portion 300. In some embodiments, the aglet 330 may be formed from a rigid or semi-rigid material to maintain its shape and function as an effective stop. The arrangement of the aglet 330 and strap 320, in combination with the holes 310, enables the fastening portion 300 to be easily applied and removed while minimizing the risk of accidental disconnection, thereby supporting reliable fixation of the surgical drape retractor 10 on the patient throughout the duration of theprocedure. The integration of these features, as shown in FIG. 2 through FIG. 6, enhances both the security and adjustability of the device for a range of patient anatomies.

[0076] In some examples, the fastening portion 300 includes an adhesive (not shown) that fastens the surgical drape retractor 10 to the patient 20. For example, the fastening portion 300 may include a double-sided tape that contacts the patient’s skin on one side and the surgical drape retractor 10 on the other side. The adhesive may be positioned on regions of the fastening portion 300 that are configured to interface with the patient’s face, such as along the lateral or inferior edges, to provide a secure attachment and inhibit movement of the device during use. The use of adhesive fastening may be particularly advantageous in situations where strap-based or mechanical fastening is not preferred or where additional retention is desired to supplement other securing mechanisms. The adhesive may be provided in a removable or replaceable format to accommodate single-use or multi-use applications. As illustrated in FIG. 2, FIG. 3, FIG. 4, FIG. 5, and FIG. 6, the fastening portion 300 may be integrated with other securing features, such as strap holes or connectors, allowing the adhesive to function in conjunction with or independently of alternative fastening elements. The configuration and placement of the adhesive may be adapted to accommodate variations in patient anatomy and to minimize the risk of skin irritation, supporting both secure retention and patient comfort during surgical procedures.

[0077] In some examples, the fastening portion 300 includes snap-fit or press-fit connectors (not shown). For example, the fastening portion 300 may include male connectors 350 that are formed on the surgical drape retractor 10, as shown in FIG. 3 and FIG. 4. The ends of the strap 320 may include female connectors that are configured to engage and connect to the male connectors 350 by snap-fit or press-fit engagement. This arrangement may facilitate rapid attachment and detachment of the strap 320 to the surgical drape retractor 10, supporting ease of use and adjustability for a range of patient anatomies. The snap-fit or press-fit connectors may be positioned on the lateral regions of the fastening portion 300 or frame 400, as depicted in the referenced figures, to enable secure retention of the strap 320 while minimizing bulk and interference with other device components. In some embodiments, the connectors may be designed to provide tactile feedback or an audible click upon engagement, ensuring that the strap 320 is reliably secured during use. The integration of snap-fit or press-fit connectors with the fastening portion 300, as illustrated in FIG. 3 and FIG. 4, may enhance both the stability and user-friendliness of the surgical drape retractor system.

[0078] In some examples, the fastening portion 300 includes any mechanism configured to secure the device to the patient, including but not limited to straps, bands, adhesives, hook-and-loopfasteners, clips, snaps, press-fit connectors, magnetic fasteners, or combinations thereof, to secure the device to the patient’s head or face.

[0079] In some examples, the surgical drape retractor 10 includes the frame 400. The frame 400 is positioned between the head engaging portion 100 and the drape retracting portion 200, as illustrated in FIG. 1, FIG. 3, FIG. 4, FIG. 5, and FIG. 6. The frame 400 provides a structure that connects the head engaging portion 100 and the drape retracting portion 200, supporting the overall integrity of the device. In certain embodiments, the frame 400 is formed in a concave shape that extends outwardly beyond the chin cup 110, as shown in FIG. 3 and FIG. 4, to provide clearance between the patient 20 and the frame 400 such that the frame 400 does not contact the patient’s face. The concave configuration of the frame 400 may be selected to follow the anatomical curvature of the lower face and chin, optimizing both comfort and stability. The frame 400 may have a thickness or rigidity that differs from adjacent portions, as depicted in FIG. 4 and FIG. 5, to provide additional strength for supporting the drape retracting portion 200 and for maintaining the spatial relationship between the components. In some embodiments, the frame 400 also serves as a mounting region for the fastening portion 300, with strap holes 310 formed on the left and right sides to facilitate secure attachment of a strap 320, as seen in FIG. 3, FIG. 4, FIG. 5, and FIG. 6. The arrangement of the frame 400 within the surgical drape retractor 10 supports the integration of the head engaging portion 100, drape retracting portion 200, and fastening portion 300 into a unified structure that maintains spacing, rigidity, and reliable positioning during use.

[0080] In some examples, the frame 400 is any structure or region providing rigidity and spacing between portions of the device, which could include integrated ribs, flexible arms, or distributed supports, not limited to a specific shape or thickness. The frame 400 may be configured as a concave or contoured member that follows the anatomical curvature of the lower face and chin, or as a thickened structural element extending between the head engaging portion and the drape retracting portion. In certain embodiments, the frame 400 may incorporate features such as molded ribs for reinforcement, flexible arms to accommodate anatomical variation, or distributed supports to maintain the spatial relationship between the head engaging portion, drape retracting portion, and fastening portion. The frame 400 may further serve as a mounting region for additional components, including strap holes for the fastening portion or integrated ports for oxygen delivery and carbon dioxide capture. The material and geometry of the frame 400 may be selected to provide sufficient rigidity for supporting the drape retracting portion and maintaining device orientation, while also allowing for flexibility or compliance in regions that contact the patient. This structural configurationenables the frame 400 to support the overall integrity and stability of the surgical drape retractor system during use, and to facilitate integration of the various functional components described herein.

[0081] In some examples, the frame 400 is formed using a thickness of material that differs from the head engaging portion 100 and the drape retracting portion 200. For example, the frame 400 may have a greater material thickness than the head engaging portion 100 and the drape retracting portion 200 to provide rigidity and strength to the surgical drape retractor 10. The increased thickness of the frame 400 provides strength and rigidity to the holes 310 that are formed on left and right sides of the frame 400. As illustrated in FIG. 3, FIG. 4, FIG. 5, and FIG. 6, the frame 400 is positioned as a structural element that extends between the head engaging portion 100 and the drape retracting portion 200, supporting the overall integrity of the device and maintaining the spatial relationship between these portions. In these figures, the frame 400 is shown with a concave or contoured profile that follows the anatomical curvature of the lower face and chin, and is offset from the patient-contacting surfaces to minimize direct contact and enhance comfort. The frame 400 may also serve as a mounting region for the fastening portion 300, with strap holes 310 integrated into the frame to facilitate secure attachment of a strap 320. The arrangement and material selection of the frame 400 may be adapted to optimize both strength and flexibility, providing sufficient rigidity for drape support while allowing the head engaging portion 100 to remain flexible or compliant. This differentiation in material thickness and structural configuration, as depicted in the referenced figures, supports the stability, durability, and reliable operation of the surgical drape retractor 10 during use.

[0082] In some examples, the head engaging portion 100 has a thinner material thickness than the drape retracting portion 200, the fastening portion 300, and the frame 400. The thinner material of the head engaging portion 100 may provide flexibility and pliability, which may enhance comfort when the device is in contact with the patient’s skin. This configuration allows the head engaging portion 100 to conform to the anatomical contours of the patient’s face, distributing pressure over a broader area and reducing localized pressure points. As illustrated in FIG. 3, FIG. 4, FIG. 5, and FIG. 6, the head engaging portion 100 and the chin cup 110 are shown with a thinner and more compliant structure relative to the thicker and more rigid frame 400 and drape retracting portion 200. The increased flexibility of the head engaging portion 100 may support improved fit and stability across a range of patient anatomies, while the greater rigidity of the frame 400 and drape retracting portion 200 provides structural support for drape elevation and secure fastening. This differentiation in material thickness andmechanical properties among the various portions of the device may optimize both patient comfort and the overall performance of the surgical drape retractor system.

[0083] In some examples, the head engaging portion 100 is connected directly to the drape retracting portion 200. As illustrated in FIG. 8, FIG. 9, and FIG. 10, this direct connection may be formed as a continuous or integrally molded structure in which the head engaging portion 100 transitions into the drape retracting portion 200 without an intervening frame or separate connecting element. The direct connection between these portions may provide a streamlined and compact device profile, supporting ease of manufacturing and application to the patient. In certain embodiments, the head engaging portion 100, such as a chin cup 110, is shaped to cradle the patient’s chin and is joined at its anterior or superior edge to a drape retracting portion 200 that extends forward or upward to support the surgical drape. The geometry and orientation of the connection may be adapted to maintain the intended spacing between the drape and the patient’s airway, while ensuring stable engagement with the patient’s facial anatomy. This configuration may be particularly advantageous in single-piece or unitary designs, where the elimination of additional frame components simplifies assembly and may enhance the comfort and stability of the device during use.

[0084] In some examples, the oxygen delivery portion 500 and the carbon dioxide capture portion 600 may be positioned on the drape retracting portion 200, as illustrated in FIG. 3, FIG. 4, FIG. 5, and FIG. 6. In certain embodiments, these portions may be molded into the duckbill 220, providing an integrated structure that supports both respiratory gas management and drape elevation. The arrangement of the oxygen delivery portion 500 and the carbon dioxide capture portion 600 on the drape retracting portion 200 or within the duckbill 220 allows for direct alignment of the gas ports with the patient’s nostrils, optimizing the delivery of oxygen and the capture of exhaled carbon dioxide. This configuration may enhance the efficiency and reliability of respiratory gas exchange during surgical procedures by minimizing the distance between the gas ports and the patient’s airway. The integration of these features within the drape retracting portion 200 or the duckbill 220 also supports a compact device profile and facilitates ease of use, as depicted in the referenced figures.

[0085] In use, the oxygen delivery portion 500 and the carbon dioxide capture portion 600 are positioned at a distance from the patient’s face 22 that provides a substantially direct fluid flow to and from the patient’s nostrils 24, as illustrated in FIG. 2, FIG. 3, FIG. 4, FIG. 5, and FIG.

[0086] 6. The oxygen delivery portion 500 is configured to provide fluid communication from an oxygen source to the patient’s nostrils 24, enabling efficient delivery of supplemental oxygen within a cavity formed between the surgical drape, the patient’s face, and the drape retractingportion. The carbon dioxide capture portion 600 is arranged to capture carbon dioxide exhaled from the patient’s nostrils, facilitating removal of exhaled gases for monitoring or evacuation. In some embodiments, the oxygen delivery portion 500 and the carbon dioxide capture portion 600 are integrated into the drape retracting portion or molded into a duckbill structure, as depicted in FIG. 3 through FIG. 6, allowing the ports to be located in close proximity to the patient’s nostrils for optimal gas exchange. This arrangement supports efficient respiratory gas management during surgical procedures by directing oxygen flow toward the airway and capturing exhaled carbon dioxide within the defined cavity, as further shown in the side cross-sectional view of FIG. 2.

[0087] The oxygen delivery portion 500 includes a port 510 that is tubular and hollow, as illustrated in FIG. 2, FIG. 3, FIG. 4, FIG. 5, and FIG. 6. The port 510 is configured to direct oxygen toward the region adjacent the patient’s nostrils, supporting efficient delivery of supplemental oxygen within the cavity formed between the surgical drape, the patient’s face, and the drape retracting portion. The oxygen delivery portion 500 further includes a male connector 530, which is shaped and sized to connect to a female end of an oxygen delivery and supply tubing 520 that is coupled to oxygen delivery equipment. As shown in FIG. 3, FIG. 4, and FIG. 6, the male connector 530 may have a barbed, ribbed, or threaded configuration to provide a secure and universal attachment to a range of standard oxygen supply tubing. The arrangement of the port 510, tubing 520, and male connector 530 is selected to facilitate reliable fluid communication from an external oxygen source to the patient’s nostrils, minimize the risk of disconnection, and support compatibility with commonly used oxygen delivery systems in clinical environments.

[0088] In some examples, the oxygen delivery portion 500 and / or the carbon dioxide capture portion 600 is positioned on or integrated with at least one component of the surgical drape retractor 10. The oxygen delivery portion 500 may be arranged on the drape retracting portion 200, such as within or adjacent to a duckbill 220 or post 210, to facilitate direct alignment of the oxygen port 510 with the patient’s nostrils for efficient oxygen delivery. Similarly, the carbon dioxide capture portion 600 may be positioned on the drape retracting portion 200 or molded into the duckbill 220, with the carbon dioxide port 610 oriented toward the region beneath the elevated drape to capture exhaled gas from the patient’s airway. In some embodiments, the oxygen delivery portion 500 and the carbon dioxide capture portion 600 are located on opposite lateral sides of the drape retracting portion 200 or are vertically aligned, with the carbon dioxide capture portion 600 above the oxygen delivery portion 500, to optimize gas flow management within the cavity formed by the drape, the patient’s face, and the retractor. The integration orpositioning of these portions may be adapted to accommodate various device configurations, such as unitary molded designs or assemblies of discrete components, ensuring compatibility with standard oxygen supply tubing and carbon dioxide monitoring lines. This arrangement supports secure attachment, efficient gas exchange, and reliable operation of the surgical drape retractor system during clinical use.

[0089] In some examples, the oxygen delivery portion 500 and / or the carbon dioxide capture portion 600 are shaped and positioned to be connected to and compatible with any standard or proprietary oxygen supply or CO2 monitoring tubing. The connectors associated with these portions may include universal, threaded, barbed, ribbed, or tapered configurations to accommodate a variety of tubing types used in clinical environments. In certain embodiments, the oxygen delivery portion 500 and the carbon dioxide capture portion 600 are arranged to facilitate secure and leak-resistant attachment to external supply and monitoring lines, supporting reliable fluid communication during use. The design may further include features such as quick-connect or press-fit interfaces to streamline setup and removal, and the spatial orientation of the ports may be selected to minimize kinking or obstruction of connected tubing. In some cases, the system may be adapted to support simultaneous connection to multiple types of respiratory management equipment, thereby enhancing compatibility with a range of surgical and monitoring protocols.

[0090] In some examples, the surgical drape retractor 10 is formed to accommodate respiratory management and patient monitoring devices or systems. The configuration of the device may include features such as integrated ports, channels, or mounting regions that are dimensioned and positioned to enable secure attachment and fluid communication with external oxygen supply lines, carbon dioxide monitoring lines, or other respiratory support equipment. In certain embodiments, the surgical drape retractor 10 may further comprise structural adaptations that facilitate the routing, stabilization, or protection of tubing and connectors associated with respiratory or monitoring systems, thereby supporting reliable operation during surgical procedures. The arrangement of these features may be selected to ensure compatibility with a range of standard or proprietary respiratory management and patient monitoring devices, allowing the surgical drape retractor 10 to be readily integrated into existing clinical workflows and equipment setups. In some cases, the device may be configured to support additional sensors or monitoring modules, such as temperature probes or pulse oximetry sensors, by providing dedicated attachment points or passages that maintain the intended positioning and function of these components during use.The carbon dioxide capture portion 600 includes a port 610 that is tubular and hollow, as illustrated in FIG. 2, FIG. 3, FIG. 4, FIG. 5, and FIG. 6. The port 610 is configured to receive exhaled carbon dioxide from the region adjacent the patient’s nostrils and to direct the gas into a carbon dioxide monitoring line 620. The carbon dioxide capture portion 600 further includes a male connector 630, which is shaped and sized to connect to a female end of the carbon dioxide capture tubing 620 that is coupled to carbon dioxide capture and monitoring equipment. In some embodiments, as depicted in FIG. 3, FIG. 4, and FIG. 6, the connector 630 may be threaded to provide a secure and leak-resistant attachment to a variety of standard monitoring lines. The male connector 630 may also be configured as a barbed, ribbed, or tapered connector to ensure compatibility with different types of carbon dioxide monitoring equipment. The arrangement of the carbon dioxide capture portion 600, including the port 610 and connector 630, is selected to facilitate efficient and reliable capture of exhaled carbon dioxide for monitoring purposes, supporting integration with standard clinical equipment and enhancing the overall functionality of the surgical drape retractor system.

[0091] As illustrated in FIG. 2, FIG. 3, FIG. 4, FIG. 5, and FIG. 6, the port 510 of the oxygen delivery portion 500 and the port 610 of the carbon dioxide capture portion 600 have different lengths. The port 510 of the oxygen delivery portion 500 is greater in length than the port 610 of the carbon dioxide capture portion 600. The lengths of the ports 510, 610 may differ to aid connecting of the oxygen delivery and supply tubing 520 and the carbon dioxide monitoring line 620. That is, the differing lengths may prevent interference of the oxygen delivery and supply tubing 520 when connecting the carbon dioxide monitoring line 620 and vice versa. In some examples, the port 510 of the oxygen delivery portion 500 is shorter in length than the port 610 of the carbon dioxide capture portion 600. In some examples, the port 510 of the oxygen delivery portion 500 is equal in length than the port 610 of the carbon dioxide capture portion 600. In some examples, where the port 510 of the oxygen delivery portion 500 is equal in length than the port 610 of the carbon dioxide capture portion 600, the distance between the port 510 of the oxygen delivery portion 500 and the port 610 of the carbon dioxide capture portion 600 may increase to prevent interference of the oxygen delivery and supply tubing 520 when connecting the carbon dioxide monitoring line 620 and vice versa.

[0092] In some examples, the inner diameter of the port 510 of the oxygen delivery portion 500 is similar in diameter to the inner diameter of the port 610 of the carbon dioxide capture portion 600. The dimensions of the ports 510, 610 may be optimized according to the diameters of the oxygen delivery and supply tubing 520 and the carbon dioxide monitoring line 620.In some examples, the inner surface of the ports 510, 610 has a draft angle of 0.5 degrees. The draft angle reduces the risk of product damage and product ejection defects during manufacturing. In some examples, the inner surface of the ports 510, 610 has no draft angle. In some examples, the oxygen delivery portion 500 and the carbon dioxide capture portion 600 are positioned on opposite sides of the post 210 of the drape retracting portion 200, as illustrated in FIG. 11. This arrangement may facilitate direct alignment of the respective ports with the patient’s nostrils when the device is mounted, supporting efficient delivery of oxygen and capture of exhaled carbon dioxide within the cavity formed by the drape, the patient’s face, and the drape retracting portion. The spatial separation of the oxygen delivery portion 500 and the carbon dioxide capture portion 600 on the right and left sides of the post 210 may also reduce the risk of cross-interference between the gas flows, thereby enhancing the reliability of both oxygen administration and carbon dioxide monitoring during use. The configuration of these components, as depicted in the referenced figures, may be adapted to accommodate a range of patient anatomies and procedural requirements while supporting secure integration with standard oxygen supply and carbon dioxide monitoring equipment.

[0093] In some examples, the elongated drape-retracting post 210 may be removable from the head engaging portion 100, as illustrated in FIG. 11. As shown, the surgical drape retractor is illustrated with an interface for attachment to a removable elongated drape-retracting post. The interface for attachment may include but is not limited to nut and bolt fastener that secures the elongated drape-retracting post 210 to the head engaging portion 100, as illustrated in FIG. 11. In some examples, as illustrated in FIGS. 7A and 7B, the oxygen delivery portion 500 and the carbon dioxide capture portion 600 are positioned in an inline and centered orientation on the drape retracting portion 200, with the carbon dioxide capture portion 600 located above the oxygen delivery portion 500. That is, the axes upon which the ports 510, 610 extend are parallel and coplanar. Accordingly, when the surgical drape retractor 10 is positioned on the patient, the oxygen delivery portion 500 and the carbon dioxide capture portion 600 are oriented one above the other in the Y-direction. The oxygen delivery portion 500 and the carbon dioxide capture portion 600 are oriented along a centerline of the surgical drape retractor 10.

[0094] This arrangement may facilitate efficient management of respiratory gases by aligning the respective ports in close proximity to the patient’s nostrils, thereby supporting direct delivery of oxygen and capture of exhaled carbon dioxide within the cavity formed between the surgical drape, the patient’s face, and the drape retracting portion. The inline, centered, and vertical configuration may also prevent movement and shifting of the surgical drape retractor 10 when the ports 510, 610 are connected to the oxygen supply tubing 520 and the carbon dioxidemonitoring line 620. For example, forces on one or both of the oxygen delivery portion 500 and the carbon dioxide capture portion 600 caused by the oxygen supply tubing 520 and the carbon dioxide monitoring line 620, respectively, may cause pulling on and shifting of the surgical drape retractor 10 during surgery and while the surgical drape retractor 10 is worn by the patient. The inline, centered, and vertical configuration of the oxygen delivery portion 500 and the carbon dioxide capture portion 600 may limit shifting of the surgical drape retractor 10, for example in the X-direction, Y-direction, and / or Z-direction, by centering the forces along the centerline of the surgical drape retractor 10. This arrangement neutralizes asymmetric forces from connected tubing and uniquely prevents lateral shifting of the device — an issue unaddressed in prior respiratory support systems, nasal cannulas, or drape retractors.

[0095] The inline, centered, and vertical configuration may also optimize the spatial relationship of the gas management features relative to the drape and patient anatomy, reducing the risk of interference between the oxygen and carbon dioxide pathways. In some embodiments, the inline, centered, and vertical alignment of the oxygen delivery portion 500 and the carbon dioxide capture portion 600 may be integrated into a duckbill structure of the drape retracting portion 200, further enhancing the stability and compactness of the device. The arrangement may be selected to accommodate variations in patient anatomy and surgical positioning, ensuring reliable operation and compatibility with standard oxygen supply and carbon dioxide monitoring equipment. This configuration supports a streamlined and effective approach to respiratory gas management during surgical procedures.

[0096] FIGS. 7A and 7B illustrate the oxygen delivery portion 500 positioned closer to the patent than the carbon dioxide capture portion 600. In other words, FIGS. 7A and 7B illustrate the oxygen delivery portion 500 positioned on the drape retracting portion 200 along the Y-direction at a position that is closer to the head engaging portion 100 than the carbon dioxide capture portion 600. However, in some examples, the carbon dioxide capture portion 600 may be positioned on the drape retracting portion 200 along the Y-direction at a position that is closer to the head engaging portion 100 than the oxygen delivery portion 500. That is, the positions of the oxygen delivery portion 500 and the carbon dioxide capture portion 600 may be reversed.

[0097] In some examples, the oxygen delivery portion 500 and the carbon dioxide capture portion 600 include one or more features configured to deliver oxygen to and / or capture exhaled carbon dioxide from the patient’s airway. The oxygen delivery portion 500 may include a port, tubing, and a connector that is arranged to provide fluid communication from an external oxygen source to the region adjacent the patient’s nostrils, thereby facilitating the administration of supplemental oxygen during a surgical procedure. The carbon dioxide capture portion 600 mayinclude a port, a monitoring line, and a connector that is arranged to capture exhaled carbon dioxide from the vicinity of the patient’s nostrils and direct it to external monitoring equipment for analysis. In some embodiments, these portions may be integrated into the drape retracting portion or molded into a duckbill structure, with the ports positioned to provide direct and efficient delivery and capture of respiratory gases within the cavity formed by the device and the surgical drape. The connectors for both the oxygen delivery portion and the carbon dioxide capture portion may be configured as universal, threaded, barbed, or ribbed to ensure compatibility with a variety of clinical equipment and to provide secure attachment during use. The arrangement of these features may be selected to optimize the management of respiratory gases, support patient safety, and facilitate workflow efficiency in the surgical environment. In some examples, the surgical drape retractor 10 may be used in conjunction with a nasal cannula configured to deliver oxygen to the patient 20. The patient 20 may wear a nasal cannula that provides oxygen while also wearing the surgical drape retractor 10. This arrangement may be selected in clinical scenarios where supplemental oxygen delivery via a nasal cannula is preferred or required due to patient-specific considerations or procedural protocols. The surgical drape retractor 10 is configured to accommodate the presence of a nasal cannula without interfering with its function or placement, thereby supporting simultaneous use of both devices. In some embodiments, the anatomical conformity and spatial arrangement of the head engaging portion 100 and drape retracting portion 200 allow the nasal cannula to be positioned on the patient’s face and nostrils while maintaining the intended spacing of the surgical drape above the airway. The device may be adapted to ensure that the cannula tubing is not compressed or displaced by the retractor, and that oxygen flow to the patient is not impeded. This compatibility with nasal cannula use may provide flexibility for surgical teams to select the most appropriate oxygen delivery modality for each patient while benefiting from the drape retraction and airway management features of the system.

[0098] In some examples, the surgical drape retractor 10 is molded as a single unitary component, as illustrated in FIG. 3, FIG. 4, FIG. 5, and FIG. 6. The surgical drape retractor 10 may be formed from a moldable material such as plastic, resin, rubber, metal, foam, composite materials, ceramics, natural moldable materials, or bioplastics, among others. The selection of material may be based on desired properties such as rigidity, flexibility, biocompatibility, or ease of sterilization. In certain embodiments, the molding process enables the integration of multiple functional features, including the head engaging portion, drape retracting portion, fastening portion, frame, oxygen delivery portion, and carbon dioxide capture portion, into a single continuous structure. This unitary construction may improve manufacturing efficiency, reduceassembly steps, and enhance the structural integrity of the device. The molded design may also facilitate the formation of complex geometries, such as contoured surfaces for anatomical conformity or integrated ports for gas management, as depicted in the referenced figures. The ability to produce the surgical drape retractor 10 as a single molded component supports consistent quality and may simplify logistics for clinical use.

[0099] In some examples, the surgical drape retractor 10 is molded from plastic materials. Plastic materials may include polypropylene (PP), polyethylene (PE), acrylonitrile butadiene styrene (ABS), polycarbonate (PC), or other suitable polymers, but are not limited to only the listed materials. The use of moldable plastics may provide benefits such as sterility and suitability for medical applications, cost-effectiveness, and the ability to be shaped into complex designs using molding techniques. As illustrated in FIG. 3, FIG. 4, FIG. 5, and FIG. 6, the device may be formed with intricate contours, integrated ports, and structural features that support both patient comfort and functional requirements. The molding process may enable the integration of the head engaging portion, drape retracting portion, fastening portion, frame, oxygen delivery portion, and carbon dioxide capture portion into a single continuous structure or as discrete components that are subsequently assembled. The selection of plastic materials may also allow for the use of soft, pliable regions in areas that contact the patient’s skin, while providing increased rigidity in regions requiring structural support, as depicted in the referenced figures. This versatility in material selection and molding approach may facilitate the production of devices that are both comfortable for the patient and robust in clinical use. In some examples, the surgical drape retractor 10 is molded using an injection molding process with plastic materials, as illustrated in FIG. 3, FIG. 4, FIG. 5, and FIG. 6. The injection molding process may enable the formation of complex geometries and integrated features, such as contoured head engaging portions, drape retracting portions, fastening portions, frames, and integrated oxygen delivery and carbon dioxide capture ports. The use of injection molding may facilitate the production of a single unitary component or discrete components that are subsequently assembled, supporting both manufacturing efficiency and consistency in device quality. The figures referenced demonstrate various molded configurations, including the integration of strap holes, chin cups, duckbill structures, and gas management ports, which may be achieved through precise control of material flow and mold design during the injection molding process. This approach allows for the selection of plastics with desired properties such as rigidity, flexibility, and biocompatibility, supporting both patient comfort and device performance in clinical use.In some examples, the surgical drape retractor 10 is formed from a biocompatible material suitable for medical devices, using any manufacturing method appropriate for the selected material. The biocompatible material may be selected to ensure compatibility with patient skin and mucosal surfaces, and may include plastics, resins, rubbers, metals, foams, composites, ceramics, or bioplastics, among others. The choice of material may be based on factors such as mechanical strength, flexibility, sterilizability, and patient comfort. Manufacturing methods suitable for forming the surgical drape retractor 10 may include injection molding, compression molding, extrusion, additive manufacturing, machining, or other processes that are compatible with the selected material and the intended device geometry. In some embodiments, the device may be produced as a single unitary component or as an assembly of discrete components that are attached or bonded together. The use of biocompatible materials and appropriate manufacturing methods supports the safe and effective use of the surgical drape retractor 10 in clinical environments, and enables the device to be tailored for single-use or reusable applications as required by surgical protocols.

[0100] In some examples, the plastic material is a soft plastic that is elastic and pliable to the touch so that the pressure on the patient’s chin 26 is spread over a larger area. The surgical drape retractor 10 may include a pliable plastic such that the head engaging portion 100 and the chin cup 110 minimize pressure points of peak pressure on the patient’s skin, as illustrated in FIG. 3, FIG.

[0101] 4, FIG. 5, and FIG. 6. Minimizing peak pressure points and distributing pressure across a larger area of skin improves comfort of the surgical drape retractor 10 when in use. Distributing pressure across a larger area of skin also improves tactility and adhesion to the patient’s skin and may reduce slippage or movement of the surgical drape retractor 10. In some embodiments, the use of a soft, pliable plastic for the head engaging portion 100 and chin cup 110 enables the device to conform more closely to the anatomical contours of the patient’s face, further enhancing comfort and stability during clinical use. The flexibility provided by such materials may also facilitate rapid and secure placement of the device, as the head engaging portion 100 can adapt to variations in chin size and shape, supporting a secure fit across a range of patient anatomies. The integration of soft, pliable materials in regions of the device that contact the patient’s skin, as shown in FIG. 3 through FIG. 6, may also contribute to improved patient tolerance during lengthy procedures by reducing the likelihood of localized discomfort or skin irritation.

[0102] In some examples, the surgical drape retractor is formed using separate components that are attached, bonded, or fastened together. Each of the head engaging portion 100, the drape retracting portion 200, the fastening portion 300, the frame 400, or any combination thereofmay be provided as a separate and discrete component that is subsequently joined to the other components to form the assembled device. For instance, the head engaging portion 100 may be manufactured as an individual element designed to conform to a selected region of the patient’s anatomy, while the drape retracting portion 200 may be fabricated as a distinct structure configured to support and elevate the surgical drape. The fastening portion 300, which may include strap holes, straps, or alternative securing mechanisms, can likewise be produced as a separate component and attached to the frame 400 or other regions of the device. The frame 400 may be formed as a rigid or semi-rigid support element and connected to the head engaging portion 100 and drape retracting portion 200 to provide structural integrity and maintain the desired spatial relationships between the components. These discrete components may be joined using bonding techniques such as adhesive application, ultrasonic welding, or thermal bonding, or may be fastened together using mechanical connectors, snap-fit features, or press-fit arrangements. In some embodiments, the modular construction of the surgical drape retractor enables customization or interchangeability of components to accommodate different patient anatomies, procedural requirements, or material preferences. This approach may facilitate manufacturing flexibility, repair or replacement of individual parts, and adaptation of the device for various clinical scenarios, while maintaining the overall functionality and stability of the assembled surgical drape retractor system.

[0103] In some examples, the surgical drape retractor 10 is provided in multiple sizes to accommodate patients of various age, size, anatomy, or other physiological characteristics. The availability of multiple sizes may enable selection of a device that conforms more closely to the facial features and dimensions of individual patients, thereby supporting secure engagement and comfort during use. Alternatively, in some examples, the surgical drape retractor 10 is provided in a single size that is configured to accommodate a broad range of patient anatomies. The universal sizing approach may be achieved through the use of flexible or adjustable features, such as an elastic fastening strap or contoured head engaging portion, which may adapt to variations in chin, jaw, or facial structure. In either configuration, the sizing of the surgical drape retractor 10 may be selected to ensure that the device maintains reliable spacing of the surgical drape from the patient’s airway and supports integration with other components, such as the drape retracting portion, fastening portion, and gas management features. The ability to provide the device in multiple sizes or as a universal fit may facilitate use across diverse patient populations and clinical environments, supporting workflow efficiency and patient safety. In some examples, the surgical drape retractor 10 is provided as a kit or system of components that includes the surgical drape retractor 10 and the surgical drape 30. The kit may beconfigured to supply all necessary elements for surgical drape management in a single package, thereby facilitating streamlined preparation and reducing the need for separate procurement of individual components. By providing both the surgical drape retractor 10 and the surgical drape 30 together, the kit may improve workflow efficiency for surgical centers and support consistent application of the device in clinical settings. The inclusion of both components in a single kit may also reduce inventory complexity and support cost-effective distribution, as surgical centers are able to obtain a complete set of compatible elements without sourcing each item separately. In some embodiments, the kit may further include instructions for use or additional accessories as required for specific surgical procedures, further enhancing convenience and standardization for end users. In some examples, the kit may also include oxygen supply tubing 520 and CO2 monitoring line 620, which are configured to connect to the respective oxygen delivery portion and carbon dioxide capture portion of the surgical drape retractor system to facilitate direct integration with external oxygen supply and carbon dioxide monitoring equipment. The inclusion of these components in the kit may support streamlined setup and compatibility with standard clinical devices, ensuring that the system is ready for immediate use upon opening and reducing the need for additional procurement or assembly steps by the surgical team.

[0104] In some examples, the surgical drape retractor 10 is provided as a kit or system of components that is adaptable for use with a range of patient anatomies and surgical environments, optionally provided with additional components or accessories as needed. The kit may include the surgical drape retractor 10 in one or more sizes, a surgical drape 30 configured for compatibility with the retractor, and may further comprise oxygen supply tubing 520 and carbon dioxide monitoring line 620 for direct connection to the oxygen delivery portion 500 and carbon dioxide capture portion 600, respectively. In some embodiments, the kit may also include alternative fastening elements such as additional straps 320, adhesive pads, or snap-fit connectors to accommodate user preference or specific procedural requirements. The inclusion of these components in a single kit may facilitate efficient preparation and setup in the clinical environment, supporting rapid adaptation to different patient anatomies and surgical workflows. The kit may be supplied in sterile packaging and may include instructions for assembly and use, ensuring that all necessary elements for drape retraction and respiratory gas management are readily available to the surgical team.

[0105] As a result of the surgical drape retractor 10 described in the present disclosure, ophthalmic surgical procedures, such as cataract surgery, may be performed with improved efficiency due to a reduction in patient preparation time. The system enables the patient to be fitted with asingle integrated device, rather than requiring separate placement of both a surgical drape retractor and a nasal cannula, thereby streamlining the setup process. As illustrated in FIG. 1 and FIG. 2, the surgical drape retractor 10 is configured to be positioned beneath the surgical drape 30 and adjacent to the patient’s lower face, providing both drape support and respiratory gas management in a unified structure. The integration of features such as the head engaging portion 100, drape retracting portion 200, fastening portion 300, frame 400, oxygen delivery portion 500, and carbon dioxide capture portion 600, as shown in FIG. 3 through FIG. 6, allows for a single-step application that secures the device to the patient and establishes fluid communication for oxygen delivery and carbon dioxide capture. This arrangement not only reduces the number of components required but also minimizes the risk of device misplacement or interference during surgery. By consolidating these functionalities, the surgical drape retractor 10 supports a more efficient workflow for the surgical team, enhances patient comfort, and maintains a clear and unobstructed surgical field throughout the procedure.

[0106] The surgical drape retractor 10 is configured to provide increased space for the surgeon to perform procedures relative to commercially-available surgical drape retractors, as the device is positioned on the patient’s chin 26 rather than on the cheek. By locating the retractor on the chin, the distance from the surgical site — such as the ocular region in ophthalmic surgery — to the chin is greater than the distance from the surgical site to the cheek, thereby increasing the available working area for the surgeon. This spatial arrangement is illustrated in FIG. 1, FIG.

[0107] 2, FIG. 8, and FIG. 10, which show the surgical drape retractor 10 mounted beneath the chin and extending anteriorly to support the surgical drape away from the nose and mouth. The increased clearance provided by the chin-mounted configuration reduces the likelihood of interference between the device and surgical instruments, enhances the surgeon’s access to the operative field, and supports an unobstructed view of the surgical site. As a result, the design of the surgical drape retractor 10 contributes to improved ergonomics and workflow efficiency during surgical procedures.

[0108] Efficiency is also improved because the surgical drape retractor 10 is more easily fitted to patients. The surgical drape retractor 10 is configured to be strapped onto the patient’s head, as illustrated in FIG. 2, rather than being adhered to the patient’s cheek as with some commercially available devices. This strap-based arrangement allows for rapid application and removal, supporting workflow efficiency during surgical preparation. The flexible strap 320, shown in FIG. 2, enables adjustment of the surgical drape retractor 10 to accommodate a range of head sizes and shapes, providing a secure and comfortable fit for different patients. In contrast, adhesive-based retractors may not be re-adhered to the patient after being initially applied,which can complicate repositioning or adjustment if needed. The use of an adjustable strap 320 thus supports both ease of use and adaptability, reducing setup time and facilitating consistent placement of the device across a variety of clinical scenarios.

[0109] The surgical drape retractor 10 may enhance patient comfort by minimizing direct contact between adhesives and the patient’s skin, as illustrated in FIG. 2. In some embodiments, the device is configured to be secured using a strap-based fastening portion 300, which may reduce or eliminate the need for adhesive-based attachment methods that can cause skin irritation, redness, or mild allergic reactions. By employing a chin-mounted head engaging portion 100 and a contoured chin cup 110, as depicted in FIG. 2, the device distributes pressure over a broader area of the patient’s face, further reducing the risk of localized skin irritation. Additionally, the integration of an oxygen delivery portion 500 within the device, as shown in FIG. 2, may reduce reliance on a separate nasal cannula, thereby decreasing the likelihood of skin irritation or discomfort around the patient’s nose. Limiting sources of skin irritation, particularly in sensitive facial regions, may also reduce involuntary patient movement during surgery, supporting both patient safety and procedural stability.

[0110] The surgical drape retractor 10 reduces costs for surgical centers because it may eliminate the need to purchase both a surgical drape retractor and a nasal cannula for each procedure, as the integrated system is configured to provide both drape retraction and respiratory gas management in a single device. This consolidation of functions is illustrated in FIG. 1 through FIG. 7B, which depict the arrangement and integration of the head engaging portion, drape retracting portion, fastening portion, frame, oxygen delivery portion, and carbon dioxide capture portion within the device. By utilizing a single device that incorporates these features, surgical centers may streamline procurement, inventory management, and preparation processes, thereby reducing operational complexity. The cost savings realized through the use of the surgical drape retractor 10 may be significant, particularly for surgical centers that perform thousands of surgeries per year, as the reduction in required components and associated preparation time can result in both direct and indirect financial benefits. The figures referenced further demonstrate how the device is adapted for efficient application and reliable operation in clinical environments, supporting both economic and workflow advantages. The surgical drape retractor system described herein is not limited to ophthalmic surgery and may be adapted for use in a wide variety of surgical and clinical procedures requiring secure drape management and respiratory gas control around the patient’s head and face. Suitable alternative applications include, but are not limited to, ear, nose, and throat (ENT) surgeries, dental and maxillofacial interventions, neurosurgical procedures involving the craniofacialregion, plastic and reconstructive surgeries, emergency and trauma care, pediatric surgical settings, and sedation-assisted minor operations. The device’s anatomical conformity, adjustable fastening, and integrated oxygen delivery and carbon dioxide capture features enable flexible deployment across diverse clinical environments, supporting enhanced patient comfort, optimized surgical access, and streamlined workflow. Additionally, the system’s modular design allows for further customization to meet the needs of emerging surgical techniques and patient populations beyond those explicitly disclosed, encompassing all such procedures and related applications within the scope of this disclosure.

Claims

CLAIMS1. A surgical drape retractor device, comprising:a head engaging portion configured to engage a patient’s head and face;a drape retracting portion operatively connected to the head engaging portion and configured to distance a surgical drape from a portion of the patient’s head;a fastening portion operatively connected to the head engaging portion and configured to fasten the device to the patient’s face;a frame positioned between the head engaging portion and the drape retracting portion, the frame configured to connect the head engaging portion and the drape retracting portion and provide spacing and rigidity;an oxygen delivery portion configured to provide fluid communication from an oxygen source to the patient’s nostrils; anda carbon dioxide capture portion configured to capture exhaled carbon dioxide from the patient’s nostrils.

2. The device of claim 1, wherein the head engaging portion comprises a chin cup having a concave shape configured to engage an underside, lateral side, or forward-facing portion of the patient’s chin.

3. The device of claim 1, wherein the drape retracting portion comprises a duckbill having a hyperbolic paraboloid, triangular, polygonal, or rounded shape, and configured to form a cavity with the surgical drape and the patient’s face for management of oxygen and carbon dioxide.

4. The device of claim 1, wherein the fastening portion comprises strap holes positioned on left and right sides of the frame and a strap laced through at least one of the strap holes.

5. The device of claim 4, wherein the strap is elastic and comprises aglets at ends of the straps to prevent disconnection from the device.

6. The device of claim 1, wherein the oxygen delivery portion and the carbon dioxide capture portion are positioned on the drape retracting portion.

7. The device of claim 1, wherein the oxygen delivery portion comprises a port, oxygen delivery and supply tubing, and a male connector configured to connect to an oxygen source.

8. The device of claim 1, wherein the carbon dioxide capture portion comprises a port, a carbon dioxide monitoring line, and a male connector configured to connect to carbon dioxide monitoring equipment.

9. The device of claim 1, wherein the device is molded as a single unitary component or as separate components attached or bonded together.

10. The device of claim 1, wherein the device is formed from a material selected from the group consisting of plastic, resin, rubber, metal, foam, composite, ceramic, and bioplastic.

11. The device of claim 1, wherein the device is produced by injection molding.

12. The device of claim 1, wherein the device is provided in multiple sizes or as a single universal size.

13. The device of claim 1, wherein the device is configured to be positioned on the chin, mouth, cheeks, jaw, upper lip, lower lip, nose, forehead, neck, or any combination thereof.

14. The device of claim 1, wherein the device is provided as a kit including the surgical drape.

15. The device of claim 14, wherein the kit includes:oxygen supply tubing connectable to the oxygen delivery portion; anda carbon dioxide monitoring line connectable to the carbon dioxide capture portion.

16. A method of preparing a patient for surgery, comprising:positioning a surgical drape retractor on a region of the patient’s head or face using a head engaging portion configured to engage and conform anatomically to the patient’s facial features;fastening the surgical drape retractor to the patient’s head or face with a fastening portion operatively connected to the head engaging portion;elevating and supporting a surgical drape away from the patient’s nostrils and mouth using a drape retracting portion operatively connected to the head engaging portion, thereby creating a cavity between the drape, the patient’s face, and the retractor;delivering oxygen to the patient’s nostrils through an oxygen delivery portion integrated with the surgical drape retractor and positioned within the cavity; andcapturing exhaled carbon dioxide from the patient’s nostrils through a carbon dioxide capture portion integrated with the surgical drape retractor and positioned within the cavity.

17. A surgical drape retractor device, comprising:a head engaging portion configured to engage a patient’s chin;a drape retracting portion operatively connected to the head engaging portion and configured to distance a surgical drape from a portion of the patient’s head; anda fastening portion operatively connected to the head engaging portion and configured to fasten the device to the patient’s face,wherein the head engaging portion is molded to conform to a shape of the patient’s chin.

18. The device of claim 17, wherein the device is configured to be used in conjunction with a nasal cannula.

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