Camera integrated device and method for maxillary sinus mucosa elevation and synthetic bone delivery

Abstract

The application discloses a camera integrated device and method for maxillary sinus mucosa lifting and synthetic bone delivery, which comprises a main handle, an operation tube installed at the front end of the main handle, a male connector socket installed at the rear end of the main handle, and a camera module installed inside the front end of the operation tube; a transparent protective cover is combined with the front end of the operation tube, and an umbrella-shaped outer edge is arranged on the outer edge of the front end of the operation tube, which is used for controlling the lifting of the maxillary sinus mucosa and providing structural support for the transparent protective cover. The application combines the visual camera module with the sinus mucosa lifting tool, so that real-time observation of the mucosa and the operation area can be realized during the maxillary sinus mucosa lifting process. By providing direct visual guidance, more accurate control of the lifting force and direction of the mucosa is realized, so that the risk of mucosa perforation is effectively reduced, and the safety of the operation is improved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a camera-integrated device and method for maxillary sinus mucosal elevation and synthetic bone delivery. Background Technology

[0002] Maxillary sinus lift is commonly used to increase alveolar bone height in the posterior maxillary region to facilitate dental implant placement. This procedure is suitable for cases with sinus pneumatization, alveolar ridge resorption, or insufficient residual bone height. During the procedure, the maxillary sinus mucosa is gently elevated, and synthetic bone graft material is placed to promote bone regeneration and improve implant stability. Typically, maxillary sinus lift is performed without direct visualization, relying primarily on tactile feedback and preoperative imaging techniques, such as cone-beam computed tomography (CBCT), to assess sinus anatomy and residual bone volume. While preoperative imaging provides valuable anatomical information, it cannot provide real-time feedback on the mucosal condition, position, or distribution of bone graft material during the procedure. This lack of direct visualization increases the risk of intraoperative complications, including mucosal perforation, uneven placement, or displacement of the bone graft material.

[0003] To improve surgical safety and ease of operation, several technical solutions have been proposed. A hydraulically assisted and visually assisted lifting device (CN117481850A) aims to improve membrane control through fluid pressure and monitoring. A multifunctional maxillary sinus endoscope (CN118203290A) integrating visualization, irrigation, suction, and operation channels (007) enables intraoperative observation. A navigation system (CN118697503A) enhances spatial guidance and depth control during mucosal dissection. A handheld, portable, high-definition visual endoscope for maxillary sinus foreign body retrieval (CN120732342A) integrating imaging and operation functions improves visualization and ease of operation. Some devices are designed for specific tasks, such as the maxillary sinus fungal surgery fiber optic endoscope powered brush device (CN117752385A), the maxillary sinus forceps with suction and irrigation functions (CN221105953U), and the optical navigation probe (CN119679518A), each addressing different problems in sinus surgery.

[0004] However, current technologies typically focus only on single improvements or partial integration of visualization with surgical procedures, often separating visualization from mucosal elevation or bone grafting. This results in complex surgical instruments, cumbersome procedures, and intermittent monitoring at critical stages. Existing tools lack the coordinated integration of controlled mucosal elevation, guided bone grafting, and continuous real-time visualization within a single instrument. Frequent instrument changes and reliance on operator experience can affect the accurate assessment of mucosal integrity and graft placement, thereby reducing surgical efficiency and increasing risks.

[0005] Therefore, there is still a need for an integrated maxillary sinus lift tool that can achieve controlled mucosal elevation, guided bone graft filling, and continuous intraoperative visualization with a single handheld tool, in order to improve surgical precision, operational efficiency, and patient safety. Summary of the Invention

[0006] The purpose of this invention is to address the technical deficiencies in the prior art by providing a camera-integrated device for maxillary sinus mucosal elevation and synthetic bone delivery.

[0007] Another object of the present invention is to provide a method of using the above-described device.

[0008] The technical solution adopted to achieve the purpose of this invention is: A camera-integrated device for elevating the maxillary sinus mucosa and delivering synthetic bone includes a main handle, an operating tube installed at the front end of the main handle, a male connector socket installed at the rear end of the main handle, and a camera module installed inside the front end of the operating tube. A transparent protective cover is affixed to the front opening of the operating tube, and an umbrella-shaped outer edge is provided around the outer edge of the front opening of the operating tube to control the elevation of the maxillary sinus mucosa and provide structural support for the transparent protective cover.

[0009] In the above technical solution, the front end of the operating tube is provided with a mounting slot for accommodating the camera module, and the camera module passes through the mounting slot.

[0010] In the above technical solution, a cylindrical insert is provided inside the transparent protective cover. The cylindrical insert is inserted into the mounting groove, and the transparent protective cover is placed on the operating tube by the cylindrical insert.

[0011] In the above technical solution, the camera module includes an imaging sensor and one or more illumination elements. Preferably, the illumination elements are arranged around the imaging sensor or a portion of the illumination elements are arranged around the imaging sensor and another portion is integrated into the imaging sensor. The illumination elements are light-emitting diodes.

[0012] In the above technical solution, the operating tube and the main handle are hollow and connected to each other, forming a channel for the main handle wire to pass through. The camera module is electrically connected to the connector on the male connector socket through the main handle wire to realize power supply and signal transmission.

[0013] In the above technical solution, the outer surface of the main handle is provided with multiple grooves.

[0014] In the above technical solution, the male connector socket includes a male connector socket back cover and multiple connector pins disposed on the male connector socket back cover, and an alignment block is provided at the rear end of the male connector socket back cover.

[0015] In the above technical solution, the male connector socket is electrically connected to the female connector plug. The female connector plug is provided with an alignment slot for alignment block to be inserted. The inlet end of the female connector plug is provided with multiple hollow metal connector elements for connector pins to be inserted. The connector pins and the hollow metal connector elements constitute a connector element, thereby realizing the electrical connection between the male connector socket and the female connector plug.

[0016] In the above technical solution, the female connector plug is electrically connected to the external interface component, which includes a module housing, a PCB module installed inside the module housing, a USB Type-C cable connector and a USB bus cable that are electrically connected to the PCB module in sequence.

[0017] In the above technical solution, an inverted U-shaped outer cover is fitted onto the module housing. The inner sides of the inverted U-shaped outer cover are respectively provided with semi-cylindrical guide strips along the length of the module housing. Sliding grooves are provided on the outer surfaces of the opposite sides of the module housing for the semi-cylindrical guide strips to slide. The opening and closing of the inverted U-shaped outer cover onto the module housing is achieved by the sliding of the semi-cylindrical guide strips on the sliding grooves.

[0018] Another aspect of the invention includes a method of using the device, in which the main handle is held to guide the front end of the operating tube into the surgical site adjacent to the maxillary sinus, the maxillary sinus mucosa is lifted by the umbrella-shaped outer edge, and real-time images of the mucosa are captured by the camera module to detect mucosal perforation or improper filling of synthetic bone material during the operation, so as to make corresponding adjustments; while continuously monitoring the integrity of the mucosa and the distribution of bone graft, synthetic bone material is filled into the maxillary sinus cavity, and real-time images are displayed on an external display device during the operation.

[0019] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention combines a visualization camera module with a sinus membrane lifting tool, enabling real-time observation of the mucosa and the manipulation area during maxillary sinus mucosal lifting. By providing direct visual guidance, it achieves more precise control over the lifting force and direction, effectively reducing the risk of membrane perforation and improving surgical safety.

[0020] 2. The integrated device design of the present invention reduces the need for repeated replacement of surgical tools, simplifies the operation procedure, shortens the operation time, and improves the operation efficiency.

[0021] 3. This invention enables more precise positioning and control of the filling of synthetic bone graft material within the sinus cavity, thereby improving the stability and predictability of surgical outcomes.

[0022] 4. The overall structural design of this invention effectively overcomes the technical limitations of traditional maxillary sinus lift techniques, which lack intraoperative visualization, and provides an improved technical solution for maxillary sinus lift surgery. Attached Figure Description

[0023] Figure 1 The diagram shows the structure of the lifting device of the present invention, wherein (a) is a front view; (b) is a rear view; (c) is multiple views of the male connector socket; (d) is an exploded view; and (e) is a cross-sectional view of the main handle.

[0024] Figure 2 The diagram shows a partial structural schematic of the lifting device of the present invention, wherein (a) is an exploded view of the operating tube end; (b) is a schematic diagram of the camera module; (c) is a schematic diagram of the transparent protective cover; and (d) is a cross-sectional view of the operating tube.

[0025] Figure 3 The components related to electrical connection and signal transmission of the lifting device of the present invention are shown in (a) an exploded view of the rear end of the main handle; (b) a schematic diagram of the female connector; and (c) a schematic diagram of the overall structure of the external interface component.

[0026] Figure 4 The diagram shows the structure of the external interface component, where (a) is a top view; (b) is a side view; (c) is an exploded view; and (d) is a schematic diagram of the external interface component structure.

[0027] Among them, 001, operating tube; 002, camera module; 003, imaging sensor; 004, illumination element; 005, transparent protective cover; 006, cylindrical insert; 007, channel; 008, main handle cable; 009, umbrella-shaped outer edge; 101, main handle; 102, groove; 103, male connector socket back cover; 104, alignment block; 105, connector pin; 106, conductive metal pin; 107, cavity; 108, socket; 109, alignment slot; 110, female connector plug; 111, connection end; 112, hollow metal connector element; 113, outlet; 114, wire; 115, module shell; 116, PCB module; 117, PCB drill hole; 118, through hole; 119, USB Type-C mounting connector; 120, USB opening; 121, connector interface; 122, inverted U-shaped housing cover; 123, semi-cylindrical guide bar; 124, slide groove; 125, USB Type-C cable connector; 126, USB Type-C pin; 127, USB bus cable. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0029] like Figures 1-4 As shown, a camera-integrated maxillary sinus lift device for mucosal elevation and synthetic bone delivery includes a main handle 101, an operating tube 001 installed at the front end of the main handle 101, a male connector socket installed at the rear end of the main handle 101, and a camera module 002 installed inside the front end of the operating tube 001. The operating tube 001 has an umbrella-shaped outer edge 009 at its front end, which controls the elevation of the maxillary sinus mucosa and assists in the delivery of synthetic bone material into the maxillary sinus cavity. This also enhances the mechanical strength of the operating tube 001. The front end of the operating tube 001 has a mounting groove 007 for accommodating the camera module 002, which passes through the groove. A transparent protective cover 005 is affixed to the front end of the operating tube 001, with the umbrella-shaped outer edge 009 providing structural support for the cover. The transparent protective cover 005 allows for optical transmission while protecting the camera module 002 from contamination by saliva, blood, synthetic bone material, irrigation fluid, and other contaminants encountered during the procedure.

[0030] Furthermore, such as Figure 2 As shown in (c), the transparent protective cover 005 is made of an optically transparent and biocompatible material, preferably tempered glass. A cylindrical insert 006 is provided inside the transparent protective cover 005. The cylindrical insert 006 can be inserted into the mounting groove 007, allowing the transparent protective cover 005 to be placed on the operating tube 001, thereby ensuring precise alignment and secure mechanical fixation of the transparent protective cover 005 relative to the camera module 002 and the operating tube 001. The transparent protective cover 005, made of tempered glass or other optically transparent and biocompatible materials, ensures both mechanical durability and optical clarity. Therefore, the transparent protective cover 005 serves both as a visual window for imaging and as a protective barrier for the camera module 002.

[0031] like Figure 2 As shown in (b), the camera module 002 includes an imaging sensor 003 and one or more illumination elements 004. Preferably, the illumination elements 004 are arranged around the imaging sensor 003, or a portion of the illumination elements 004 are arranged around the imaging sensor 003 and another portion is integrated into the imaging sensor 003 (thereby increasing its overall size, and consequently increasing the size of the operating tube 001). The illumination elements 004 are light-emitting diodes (LEDs) used to illuminate the operating area. In this embodiment, four LEDs are preferred.

[0032] Furthermore, such as Figure 2As shown, the operating tube 001 and the main handle 101 are integrally formed. Preferably, the operating tube 001 and the main handle 101 are mechanically connected, detachably connected, welded, or otherwise connected. The operating tube 001 can be provided as a separate component, enabling interchangeability of the operating tube 001 configuration to accommodate camera modules 002 of different sizes, optical configurations, or illumination devices, while maintaining compatibility with the main handle 101. This modular structure allows for the selection of a suitable operating tube 001 based on specific clinical needs or imaging configurations without modifying the device body. The operating tube 001 has a hollow interior forming a cavity, and the main handle 101 has a hollow interior forming a cavity 107. These two cavities are connected, forming a channel 007 through which the main handle wire 008 passes. The camera module 002 is electrically connected to a connector on a male connector socket via the main handle wire 008, thereby achieving power supply and signal transmission.

[0033] Furthermore, such as Figure 1 As shown, the main handle 101 is elongated to facilitate controlled surgical operations. Preferably, the outer surface of the main handle 101 is provided with a plurality of grooves 102, which provide enhanced ergonomic features, including improved grip stability, tactile feedback, and reduced hand fatigue during prolonged surgical operations.

[0034] Furthermore, such as Figure 1 As shown in (b), the male connector socket includes a male connector socket back cover 103 and a plurality of connector pins 105 disposed on the male connector socket back cover 103. Preferably, there are six connector pins 105, of which four pins are configured to electrically connect to the camera module 002, and the other two pins are configured to electrically connect to the illumination element 004 of the camera module 002. To ensure proper connection with the female connector plug 110, an alignment block 104 is provided at the rear end of the male connector socket back cover 103. The alignment block 104 ensures that the male connector socket back cover 103 is inserted into the corresponding female connector plug 110 in a predetermined orientation, thereby preventing incorrect electrical alignment. Each connector pin 105 includes a conductive metal pin 106 with a rounded head. Figure 3 As shown, the rear end of each connector pin 105 is designated by reference numeral 106 to indicate its electrical termination characteristics. Preferably, the connection end of the pin to the male connector socket cover is cylindrical, with its free end being semi-cylindrical or flat to facilitate wire connection. The wire is mechanically fixed by soldering and electrically connected to the conductive metal pin 106, thereby electrically connecting the pin to the camera module 002 and the associated lighting element 004.

[0035] Furthermore, such as Figure 3As shown, the female connector plug 110 and the male connector socket mechanically and electrically engage to establish electrical contact. To ensure correct orientation and reliable electrical alignment, the female connector plug 110 is provided with an alignment groove 109 for the alignment block 104 to be inserted. The engagement of the alignment block 104 and the alignment groove 109 prevents rotational misalignment and ensures the correct positioning of the connector pins 105 during insertion. The inlet end of the female connector plug 110 has multiple sockets 108, in which hollow metal connector elements 112 for the connector pins 105 to be inserted are installed. The connector pins 105 and the hollow metal connector elements 112 constitute a connector element, realizing the electrical connection between the male connector socket and the female connector plug 110. This provides electrical communication for the camera module 002. The outer diameter of the connection end 111 of the female connector plug 110 and the male connector socket is slightly smaller than the inner diameter of the male connector socket 103, thereby ensuring a secure mechanical interference fit while achieving smooth insertion and removal.

[0036] like Figure 3 and Figure 4 As shown, electrical communication between the female connector plug 110 and downstream electronic circuitry is achieved by a wire 114 connected to the connector elements. The wire 114 extends from an outlet 113 at the end of the female connector plug 110, the diameter of which matches the diameter of the wire 114 to provide stress relief and maintain mechanical stability at the outlet. The wire 114 is electrically connected to an external interface assembly, which includes a module housing 115, a camera interface printed circuit board module (PCB module) 116 mounted within the module housing 115, a USB Type-C cable connector 125, and a USB bus cable 127, which are sequentially electrically connected to the PCB module 116. The camera interface printed circuit board (PCB) module receives image data from the camera module 002 and transmits the data to external devices. The PCB module 116 is mounted within the module housing 115, which protects the PCB and provides mechanical support.

[0037] Furthermore. For example... Figure 4 As shown in (a), PCB module 116 connects camera module 002 to an external display device for real-time monitoring of maxillary sinus lift surgery. PCB module 116 acts as a central control and interface unit, powering camera module 002, driving the illumination LEDs, and enabling real-time image data acquisition and high-speed serial data transmission via a Universal Serial Bus (USB) interface. This PCB module 116 supports fast and stable data transmission using USB Type-C. PCB module 116 includes a USB Type-C PCB mounting connector 119 directly soldered onto the PCB for external connections.

[0038] Furthermore, the outer surface of the PCB module 116 is provided with multiple PCB drill holes 117 to ensure precise positioning and secure mechanical fixation of the PCB module 116 within the module housing 115. In addition, the PCB module 116 is provided with six through holes 118 for electrical connection and soldering of the camera module 002's wiring to the circuitry of the PCB module 116. The PCB module 116 is mounted within the module housing 115, which provides mechanical protection and structural support. The module housing 115 is provided with one or more USB openings 120 for the connector interface 121 to pass through. The connector interface 121 electrically connects to a USB Type-C cable connector 125, which connects to an external display or computing device. With this configuration, the PCB module 116 enables communication between the camera module 002 and external devices without the need for dedicated imaging hardware. Preferably, the electrical communication between the USB Type-C mounting connector 119 on the PCB module 116 and the external USB Type-C cable connector 125 enables data transmission and power supply. Specifically, the USB Type-C cable connector 125 has a USB Type-C pin 126 at its end, which is inserted into the connector interface 121 to connect the USB Type-C cable connector 125 to the USB Type-C mounting connector 119. The USB Type-C cable connector 125 establishes communication and data transmission between the PCB module and the external display or processing device via a USB bus cable 127.

[0039] like Figure 4 As described in (c), the module housing 115 is covered by an inverted U-shaped housing cover 122. The inverted U-shaped housing cover 122 has semi-cylindrical guide strips 123 on opposite sides of its interior, extending along the length of the module housing 115. Sliding grooves 124 are provided on the outer surfaces of opposite sides of the module housing 115 for the semi-cylindrical guide strips 123 to slide. The inverted U-shaped housing cover 122 opens and closes over the module housing 115 by sliding the semi-cylindrical guide strips 123 on the sliding grooves 124, facilitating easy opening and closing during routine maintenance and replacement while maintaining mechanical stability and alignment.

[0040] Further PCB module 116 includes structural features such as predefined mounting holes for precise positioning within the housing, and pads or vias for electrical interconnection with the camera and LED circuitry. Simultaneously, the circuitry of PCB module 116 can be configured or adjusted to provide optimal illumination intensity for the LED module while ensuring stable camera operation.

[0041] The method of using the lifting device is as follows: Hold the main handle 101 and introduce the front end of the operating tube 001 into the surgical site adjacent to the maxillary sinus. Lift the maxillary sinus mucosa through the umbrella-shaped outer edge 009. At the same time, the camera module 002 captures real-time images of the mucosa to detect mucosal perforation or improper filling of synthetic bone material during the operation, so as to make corresponding adjustments. While continuously monitoring the integrity of the mucosa and the distribution of bone graft, synthetic bone material is filled into the maxillary sinus cavity. Real-time images are displayed on an external display device during the operation. Patients and doctors can adjust the mucosal lifting or synthetic bone material delivery based on the feedback of real-time images, and selectively record images for postoperative review.

[0042] The above description is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A camera-integrated device for maxillary sinus mucosal elevation and synthetic bone delivery, characterized in that, It includes a main handle, an operating tube installed at the front end of the main handle, a male connector socket installed at the rear end of the main handle, and a camera module installed inside the front end of the operating tube; a transparent protective cover is covered on the front end of the operating tube, and an umbrella-shaped outer edge is provided on the outer edge of the front end of the operating tube to control the elevation of the maxillary sinus mucosa and provide structural support for the transparent protective cover.

2. The camera integration device according to claim 1, characterized in that, The front end of the operating tube is provided with a mounting slot for accommodating the camera module, and the camera module passes through the mounting slot.

3. The camera integration device according to claim 1, characterized in that, The transparent protective cover has a cylindrical insert inside. The cylindrical insert is inserted into the mounting groove, and the transparent protective cover is placed on the operating tube by the cylindrical insert.

4. The camera integration device according to claim 1, characterized in that, The camera module includes an imaging sensor and one or more illumination elements. Preferably, the illumination elements are arranged around the imaging sensor or a portion of the illumination elements are arranged around the imaging sensor and another portion is integrated into the imaging sensor. The illumination elements are light-emitting diodes.

5. The camera integration device according to claim 1, characterized in that, The operating tube and the main handle are hollow and connected to each other, forming a channel for the main handle wires to pass through. The camera module is electrically connected to the connector on the male connector socket through the main handle wires to achieve power supply and signal transmission. The outer surface of the main handle is provided with multiple grooves.

6. The camera integration device according to claim 1, characterized in that, The male connector socket includes a male connector socket back cover and a plurality of connector pins disposed on the male connector socket back cover, wherein an alignment block is provided at the rear end of the male connector socket back cover.

7. The camera integration device according to claim 1, characterized in that, The male connector socket is electrically connected to the female connector plug. The female connector plug is provided with an alignment slot for alignment block to be inserted. The inlet end of the female connector plug is provided with multiple hollow metal connector elements for connector pins to be inserted. The connector pins and the hollow metal connector elements constitute a connector element, thereby realizing the electrical connection between the male connector socket and the female connector plug.

8. The camera integration device according to claim 1, characterized in that, The female connector plug is electrically connected to an external interface assembly, which includes a module housing, a PCB module installed inside the module housing, a USB Type-C cable connector and a USB bus cable that are electrically connected in sequence to the PCB module.

9. The camera integration device according to claim 1, characterized in that, The module housing is covered with an inverted U-shaped housing cover. The inverted U-shaped housing cover has semi-cylindrical guide strips on opposite sides inside, which are arranged along the length of the module housing. The outer surfaces on opposite sides of the module housing are respectively provided with sliding grooves for the semi-cylindrical guide strips to slide. The inverted U-shaped housing cover opens and closes to the module housing by sliding the semi-cylindrical guide strips on the sliding grooves.

10. The method of using the camera integration device as described in any one of claims 1 to 9, characterized in that, Holding the main handle, the operator guides the tip of the operating tube into the surgical site adjacent to the maxillary sinus. The maxillary sinus mucosa is lifted by the umbrella-shaped outer edge, while the camera module captures real-time images of the mucosa to detect mucosal perforation or improper filling of synthetic bone material during the operation, so as to make corresponding adjustments. While continuously monitoring mucosal integrity and bone graft distribution, synthetic bone material is filled into the maxillary sinus cavity, and real-time images are displayed on an external display device during the operation.

Images