Multifunctional intracavity instrument

Abstract

A multifunctional endoluminal instrument for performing an endoluminal procedure includes a hollow handle having a front end and a rear end, a connecting rod having a sleeve and connected to the front end of the hollow handle, a universal joint having a hollow spherical head and a base, where the spherical head is pivotally connected to the sleeve of the connecting rod, and a top piece detachably connected to the universal joint base.

Description

[0001] Related Applications

[0002] This application claims priority to U.S. Provisional Patent Application No. 63 / 438793, filed on January 13, 2023, entitled "Endoscopic Accessories Attached to a Novel Device and Methods of Use Thereof in Periodontal Disease", and to U.S. Provisional Patent Application No. 63 / 465540, filed on May 11, 2023, entitled "Novel Dental Equipment with Direction Fixation, Inflation, and Suction Functions". The entire contents of each of the above patent applications are incorporated herein by reference for all purposes. Technical Field

[0003] The present invention relates to an instrument for use within a body cavity, and more particularly, to a multi-functional intra-cavity instrument for dental, sinus surgery, soft tissue, surgical procedures, and tooth preparation. Background Art

[0004] One of the most important and delicate procedures in the dental field is the cleaning or extraction of diseased root canals. The process of endodontic surgery includes steps such as raising a flap, resecing the root tip, removing diseased tissue and infection, filling with appropriate materials, and closing the incision.

[0005] In the prior art, dentists must insert an oral endoscope into the oral cavity to take pictures of the oral cavity. However, oral endoscopes usually only have a camera function and do not have the effect of cleaning teeth. Therefore, dentists must often stop to check and replace instruments for different surgical steps. This step can prolong the surgical time, cause discomfort to the patient, and may also cause disadvantages such as bacterial infection. In addition, whether it is the oral cavity, nasal cavity, or other narrow and dark cavities, when multiple surgical instruments must be operated simultaneously, such as an endoscope, a periodontal probe, and a water spray pipe filled with cleaning fluid, precision equipment that can provide multi-directional and multi-functional capabilities is needed. Summary of the Invention

[0006] In view of the above problems, the present invention provides a multi-functional intra-cavity instrument that can simultaneously use various intra-cavity surgical related instruments. The multi-functional intra-cavity instrument described in the present invention not only shortens the surgical time, reduces the burden on surgical personnel, but also avoids the risk of infection caused by instrument replacement. In addition, the universal joint described in the present invention can provide multi-directional rotation to reduce the visual dead angle caused by insufficient intra-cavity space.

[0007] The present invention provides a multi-functional intracavitary instrument, which can be used for endodontic surgery or other intracavitary surgeries by replacing different top components. The multi-functional intracavitary instrument of the present invention includes a hollow handle having a front end and a rear end, a connecting rod having a sleeve and connected to the front end of the hollow handle, a universal joint having a hollow spherical head and a base, wherein the spherical head is pivotally connected to the sleeve of the connecting rod, and a top component detachably connected to the base of the universal joint.

[0008] Preferably, the multi-functional intracavitary instrument of the present invention further includes at least one surgical instrument related to the oral cavity or nasal cavity, which can be accommodated in the hollow handle. More preferably, at least one surgical device related to the oral cavity or nasal cavity includes, but is not limited to, an endoscope, an imaging device, a light source, a laser, a curette, an ultrasonic power head, a flushing device or a suction device.

[0009] Preferably, the shape of the connecting rod of the present invention includes tubular, cylindrical, conical, bullet-shaped or frustum-shaped.

[0010] Preferably, the sleeve of the connecting rod of the present invention rotatably accommodates the spherical head of the universal joint.

[0011] Preferably, the front end of the hollow handle of the present invention has a threaded stud, and the bottom end of the connecting rod is provided with an internal thread to be detachably connected to the front end of the hollow handle having the threaded stud.

[0012] Preferably, the universal joint of the present invention is provided with a neck between the hollow spherical head and the base, wherein the diameter of the neck matches the diameter of the sleeve of the connecting rod.

[0013] Preferably, the base of the universal joint of the present invention includes a polygonal portion and a tapered stud, wherein the polygonal portion is located between the neck and at least one pin.

[0014] Preferably, the polygonal portion of the universal joint of the present invention is hexagonal, and the at least one pin has a curved surface.

[0015] Preferably, the top component of the present invention includes a hollow drum, an operating portion and an opening, wherein the operating portion is adjacent to the hollow drum, and the operating portion is configured for surgical operation; the inner wall of the hollow drum is hexagonal to match the shape of the polygonal portion of the universal joint; the opening is adjacent to the operating portion.

[0016] More preferably, the operating portion of the top component is suitable for operating surgery and includes a periodontal probe, a flat drill, a flat knife, a probe, a scraper, a filling instrument, a bite former, a guiding forceps, a periosteal elevator, a periodontal membrane separator, forceps and a retractor.

[0017] More preferably, the periosteal elevator includes De Wijs, Molt, Olsberg, papillas, gingival graft periosteal elevator.

[0018] Preferably, the opening of the top component is configured for at least one instrument for oral or nasal cavity related surgery to perform the surgery.

[0019] Preferably, the multifunctional intracavitary instrument of the present invention further includes a tail cap, which is connected to the rear end of the hollow handle.

[0020] Preferably, the material of the top component is made of an elastic material, and the top component has a first channel and two second channels, wherein the first channel is located between the two second channels, and the two second channels are adapted for metal wires to help maintain the shape of the top component.

[0021] More preferably, the elastic material includes silicone or shape memory metal.

[0022] Preferably, the materials of the hollow handle, the connecting rod and the universal joint are all light guiding materials.

[0023] In another embodiment of the present invention, the multifunctional intracavitary instrument further includes a control valve for regulating the ventilation and liquid volume. The control valve has a drum and a roller, wherein the drum is connected to the front end of the hollow handle, and the roller partially slides out of the drum.

[0024] Preferably, the drum of the present invention includes a front end, a rear end, a cross channel and at least one through pipe, wherein the cross channel extends longitudinally from the front end of the drum to the rear end, and the cross channel includes a first groove, a second groove, a third groove and a slot opposite to the third groove, wherein the first groove is relative to the second groove, and the third groove is located between the first groove and the second groove; at least one through pipe is formed longitudinally through the drum.

[0025] More preferably, the front end of the drum of the present invention is provided with a first front opening, a second front opening opposite to the first front opening, and a third front opening close to the first front opening; the rear end of the drum has a first rear opening, a second rear opening opposite to the first rear opening, and a third rear opening close to the first rear opening.

[0026] Preferably, the first front opening and the third front opening of the present invention are respectively communicated with the first rear opening; the second front opening is respectively communicated with the second rear opening and the third rear opening.

[0027] Preferably, the roller of the present invention is cross-shaped and includes a first arm and a second arm, the first arm and the second arm are horizontally symmetrical; the ends of the first arm and the second arm are spherical to respectively adapt to the shapes of the first groove and the second groove of the drum.

[0028] Preferably, the first arm of the roller of the present application is located in the first groove and is configured to slide between the front end and the rear end of the drum; similarly, the second arm of the roller is located in the second groove and is configured to slide between the front end and the rear end of the drum.

[0029] Preferably, the drum of the present invention further includes a guiding portion, which can rotate and slide in the third groove of the drum, and the guiding portion partially protrudes from the slot.

[0030] More preferably, the multifunctional intracavitary instrument of the present invention further includes a first pipe and a second pipe, wherein the first pipe is disposed in the hollow handle and passes from the first rear opening to the third front opening; the second pipe can be disposed in the hollow handle and passes from the second front opening to the third rear opening.

[0031] Preferably, the materials of the hollow handle, the connecting rod, the universal joint, the top member and the control valve are all light guiding materials.

[0032] In another embodiment of the present invention, the connecting rod of the multifunctional intracavitary instrument further includes a retractor, which is disposed near the sleeve.

[0033] Preferably, the shape of the retractor includes a circle, an ellipse, a bell shape, a water droplet shape or an axe shape.

[0034] More preferably, one end of the retractor is provided with two pins and a notch located between the two pins.

[0035] Other aspects and advantages of the present disclosure will be apparent from the following detailed description, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is a schematic diagram of a multifunctional intracavitary instrument according to a first embodiment of the present invention.

[0037] Figure 2 is an exploded view of a multifunctional intracavitary instrument according to a first embodiment of the present invention.

[0038] Figure 3A is a sectional view of a multifunctional intracavitary instrument according to a first embodiment of the present invention.

[0039] Figure 3B is a sectional view of a multifunctional intracavitary instrument according to a first embodiment of the present invention.

[0040] Figure 4 is an exploded view of the universal joint and the top member of a multifunctional intracavitary instrument according to a first embodiment of the present invention.

[0041] Figure 5 is a sectional view of a multifunctional intracavitary instrument according to a first embodiment of the present invention.

[0042] Figure 6 Schematic diagram of a multi-functional intracavitary instrument according to the first embodiment of the present invention, wherein the multi-functional intracavitary instrument is provided with a flat knife.

[0043] Figure 7 Schematic diagram of a multi-functional intracavitary instrument according to the first embodiment of the present invention, wherein the multi-functional intracavitary instrument is provided with a flat drill.

[0044] Figure 8 Schematic diagram of a multi-functional intracavitary instrument according to the first embodiment of the present invention, wherein the multi-functional intracavitary instrument is provided with a periodontal probe.

[0045] Figure 9A Schematic diagram of another type of top component according to the first embodiment of the present invention.

[0046] Figure 9B Top view of the hollow drum of the top component according to the first embodiment of the present invention.

[0047] Figure 9C Schematic diagram of the top component connected to a universal joint according to the first embodiment of the present invention.

[0048] Figure 10 Schematic diagram of a multi-functional intracavitary instrument according to the second embodiment of the present invention, wherein the multi-functional intracavitary instrument is provided with a control valve.

[0049] Figure 11 Exploded view of a multi-functional intracavitary instrument according to the second embodiment of the present invention.

[0050] Figure 12 Cross-sectional view of the drum and roller of a multi-functional intracavitary instrument according to the second embodiment of the present invention.

[0051] Figure 13A Schematic diagram of the drum of a multi-functional intracavitary instrument according to the second embodiment of the present invention.

[0052] Figure 13B Schematic diagram of the drum of a multi-functional intracavitary instrument according to the second embodiment of the present invention.

[0053] Figure 14 Schematic diagram of the roller of a multi-functional intracavitary instrument according to the second embodiment of the present invention.

[0054] Figure 15A Schematic diagram of the control valve of a multi-functional intracavitary instrument according to the second embodiment of the present invention.

[0055] Figure 15B Schematic diagram of the control valve of a multi-functional intracavitary instrument according to the second embodiment of the present invention.

[0056] Figure 16A Schematic diagram of a retractor of a multi-functional intracavitary instrument according to the fourth embodiment of the present invention.

[0057] Figure 16B Schematic diagram of a retractor of a multi-functional intracavitary instrument according to the second embodiment of the present invention.

[0058] Figure 16C Exploded view of a multi-functional intracavitary instrument according to the second embodiment of the present invention. Detailed implementation manners

[0059] The terms used in the following description are intended to be interpreted in the broadest reasonable manner, even when these terms are used in conjunction with the detailed description of certain specific embodiments of the technology. Some terms may even be emphasized below; however, any terms intended to be interpreted in a restrictive manner will be clearly defined in this detailed implementation manners section. The components and implementations of the drilling shield according to the present disclosure can be illustrated in the following drawings and embodiments. However, the size and shape of the drilling shield shown in the drawings do not limit the features of the present disclosure.

[0060] In the first embodiment of the present invention, a multi-functional intracavitary instrument for performing oral or nasal surgery is provided. Please refer to Figure 1 and Figure 2 , the first embodiment of the multi-functional instrument described in the present invention includes a hollow grip 10, a connecting rod 20, a universal joint 30, a top member 40, and a tail cap 50.

[0061] The hollow grip 10 has a front end 11 and a rear end 12. Preferably, the front end 11 of the hollow grip 10 has a threaded stud 111. In this embodiment, at least one oral or nasal surgery instrument can be accommodated in the hollow grip 10. More preferably, at least one oral or nasal surgery instrument includes, but is not limited to, an endoscope, an imaging device, a light source, a laser, a curette, an ultrasonic power head, a flushing device, or a suction device.

[0062] As Figure 3A and 3B shown, the connecting rod 20 includes a sleeve 21 and a bottom end 22, wherein the bottom end 22 is connected to the front end 11 of the hollow grip 10. Preferably, the shape of the connecting rod 20 includes, but is not limited to, tubular, cylindrical, conical, bullet-shaped, or frustum-shaped. Preferably, the bottom end 22 of the connecting rod 20 has an internal thread 221 for detachably connecting to the hollow grip 10 through the threaded stud 111.

[0063] As Figure 3A , Figure 3B and Figure 4As shown, the universal joint 30 has a hollow spherical head 31 and a base 32, wherein the hollow spherical head 31 is pivotally connected to the sleeve 21 of the connecting rod 20 detachably for rotation in all directions. The universal joint 30 also has a neck 33 between the hollow head 31 and the base 32, and the diameter of the neck 33 matches the diameter of the sleeve 21 of the connecting rod 20. Preferably, the base 32 of the universal joint 30 includes a polygonal portion 321 and a tapered stud 322, and the polygonal portion 321 is located between the neck 33 and at least one stud 322. In this embodiment, the polygonal portion 321 is a hexagon, and at least one stud 322 is two studs and has a curved surface. When the universal joint 30 is pivotally connected to the connecting rod 20 and the threaded stud 111 of the hollow grip 10 is adjacent to the hollow spherical head 31, the hollow spherical head 31 of the universal joint 30 is fixed. When the universal joint 30 is pivotally connected to the connecting rod 20 but the threaded stud 111 of the hollow grip 10 is not adjacent to the hollow spherical head 31, the universal joint 30 can be rotated to a suitable angle or direction based on the sleeve 21 of the connecting rod 20 as required. The rotatability of this structure provides flexibility for some difficult-to-observe angles, and dentists can directly observe the image of the treatment site through an endoscope or as described above through an endoscope. The size, angle, and position of the endoscope can be adjusted according to the patient's condition, such as the position of the treatment site and the depth of the periodontal pocket.

[0064] As Figure 4 and Figure 5 shown, the top member 40 is detachably connected to the base 32 of the universal joint 30. The top member 40 has a hollow drum 41, an operating portion 42, and an opening 43, and the inner wall of the hollow drum 41 is in a polygonal shape to match the shape of the polygonal portion 321 of the universal joint 30. In this embodiment, the inner wall of the hollow drum 41 is a hexagon. The operating portion 42 is adjacent to the hollow drum 41, and the operating portion 42 can be used to operate on the surgery, including but not limited to periodontal probes, flat drills, flat knives, probes, scrapers, filling instruments, bite formers, guiding forceps, periosteal elevators, periodontal membrane separators, forceps, retractors, or aspiration probes. Preferably, the periosteal elevator includes De Wijs, Molt, Olsberg, papillas, gingival graft periosteal elevator. As Figure 6 shown, the operating portion 42 of the top member 40 is a flat knife 42A. As Figure 7 shown, the operating portion 42 of the top member 40 is a flat drill 42B. As Figure 8As shown, the operating portion 42 of the top member 40 is a periodontal probe 42C, which is color-coded and has a calibration range of 1 millimeter (mm) to 15 mm. The opening 43 is near the operating portion 42 and can be configured to at least one instrument for oral or nasal cavity-related surgery to perform related steps of the surgery. At least one oral or nasal cavity-related surgical instrument can be accommodated in the tubular channel formed by connecting the hollow grip 10, the connecting rod 20, the universal joint 30, and the top member 40 to perform its function through the opening 43. In another example, the end of the operating portion 42 of the top member 40 is in the shape of a circular plate. In another example, the end of the operating portion 42 of the top member 40 is in the shape of a sphere.

[0065] The tail cap 50 is connected to the rear end 12 of the hollow grip 10.

[0066] In another embodiment according to the present invention, the multi-functional intracavitary instrument according to the first embodiment can be performed by using the top member 40 with a periodontal probe 42C to measure the sulcus or periodontal pocket depth. For example, healthy gums usually have a gingival sulcus depth of 1 mm to 3 mm. The hollow grip 10 of the multi-functional intracavitary instrument described in the first embodiment of the present invention is equipped with tools related to periodontal surgery, including but not limited to an endoscope, an imaging device, a light source, a laser, and a suction device. That is, the above-mentioned tools related to periodontal surgery can be used for multi-functional periodontal examinations through the opening 43 of the top member. In addition, the universal joint 30 of the present invention can provide multi-directional examinations during periodontal examinations and surgeries.

[0067] In a further embodiment according to the present invention, the multi-functional intracavitary instrument according to the first embodiment can be performed by using the top member 40 with a suction probe. In addition to blowing or suctioning to avoid atomization or liquid splashing onto the lens of the endoscope, the blood, water, or tissue fluid at the affected area can also be sucked away or blown away through the suction tip to keep the field of view clean and is suitable for opening the gingival area.

[0068] In other embodiments according to the present invention, the multi-functional intracavitary instrument such as Figures 9A to 9CAs shown, the material of the top member 40 is made of an elastic material. Preferably, the elastic material includes, but is not limited to, silicone and shape memory metal. For example, the shape memory metal is an alloy that includes, but is not limited to, nickel, manganese, titanium, copper, aluminum, or gallium. The top member 40 has a first channel 44 and two second channels 45. The first channel 44 is located between the two second channels 45. The first channel 44 is suitable for a lens for observing a sealed cavity, including, but not limited to, an endoscope and a throat lens. The two second channels 45 are suitable for a wire that is easy to bend and has a shape memory function, which helps to shape the top member 40. More specifically, the wire includes, but is not limited to, an alloy wire, a steel wire, or a copper wire. Generally speaking, the alloy wire includes, but is not limited to, an iron alloy, a nickel-titanium alloy, a copper-zinc-aluminum alloy, a copper-aluminum-nickel alloy, or an iron-manganese-silicon alloy. The inner wall of the hollow drum 41 of the top member 40 is hexagonal in shape, and the polygonal portion 321 of the base 32 is also hexagonal. Therefore, the top member 40 can be detachably connected to the base 32 of the universal joint 30.

[0069] The present invention also provides a second embodiment of a multi-functional surgical instrument for oral or nasal surgery. As Figure 10 and Figure 11 shown, the multi-functional surgical instrument further includes a control valve 60 for regulating the ventilation and liquid volume. The control valve 60 has a drum 61 and a roller 62, wherein the drum 61 is connected to the front end 11 of the hollow handle 10, and the roller 62 partially slides out of the drum 61. As Figure 11 、 Figure 12 A and Figure 12As shown in FIG. B, the drum 61 has a front end 611, a rear end 612, a cross-channel 613, and at least one through-tube 615. The cross-channel 613 extends longitudinally from the front end 611 of the drum 61 to the rear end 612, and at least one through-tube 615 is formed by passing through the drum 61 longitudinally. The cross-channel 613 has a first groove 613A, a second groove 613B, a third groove 613C, and a slot 614. The first groove 613A is relative to the second groove 613B, the third groove 613C is located between the first groove 613A and the second groove 613B, and the slot 614 is relative to the third groove 613C. In this embodiment, the front end 611 of the drum 61 has a first front opening 616A, a second front opening 616B, and a third front opening 616C. The first front opening 616A is relative to the second front opening 616B, the third front opening 616C is adjacent to the first front opening 616A, and the first front opening 616A and the second front opening 616B can accommodate the roller 62. The rear end 612 of the drum 61 has a first rear opening 617A, a second rear opening 617B, and a third rear opening 617C. The second rear opening 617B is relative to the first rear opening 617A, the third rear opening 617C is adjacent to the first rear opening 617A, and the first rear opening 617A and the second rear opening 617B can accommodate the roller 62. The first front opening 616A and the third front opening 616C are respectively in communication with the first rear opening 617A; the second front opening 616B is respectively connected to the second rear opening 617B and the third rear opening 617C in communication.

[0070] As Figure 12 and 14 shown, the roller 62 is cross-shaped and includes a first arm 621 and a second arm 622. The first arm 621 and the second arm 622 are horizontally symmetric. The ends of the first arm 621 and the second arm 622 are spherical to respectively adapt to the shapes of the first groove 613A and the second groove 613B of the drum 61. In this embodiment, the first arm 621 of the roller 62 is located in the first groove 613A, enabling the roller 62 to slide between the front end 611 and the rear end 612 of the drum 61; similarly, the second arm 622 of the roller 62 is located in the second groove 613B, enabling the roller 62 to slide between the front end 611 and the rear end 612 of the drum 61. The roller 62 further includes a guide 623, which is located between the first arm 621 and the second arm 622. The guide 623 is configured to rotate and slide in the third groove 613C of the drum 61, and the guide 623 partially protrudes from the slot 614.

[0071] As Figure 15A and Figure 15BAs shown, the multifunctional intracavitary instrument further includes a first conduit 70 and a second conduit 80. The first conduit 70 is disposed in the hollow grip 10 and passes through from the first rear opening 617A to the third front opening 616C. The second conduit 80 is disposed in the hollow grip 10 and passes through from the third rear opening 617C through the second front opening 616B. The first conduit 70 and the second conduit 80 can be respectively connected to instruments for pumping or inhaling gases and fluids, and both the first conduit 70 and the second conduit 80 are suitable for fluids and / or gases. In a preferred embodiment, the gases related to dental, nasal or cavity surgeries include, but are not limited to, hydrogen, oxygen, nitrous oxide or other gases used in surgeries. The liquids related to dental surgeries, nasal or cavity surgeries include, but are not limited to, water, mouthwash, sodium hypochlorite solution or other liquids or drugs suitable for nasal or cavity surgeries.

[0072] In this embodiment, the second conduit 80 is located in the drum 61 and passes through from the third rear opening 617C through the second front opening 616B. When the user slides the roller 62 forward to slide the guide 623 into the third groove 613C, the second arm 622 moves from the rear end 612 to the front end 611 and abuts against the second conduit 80 to reduce or stop the flow of fluid through the second conduit 80. The first conduit 70 is located in the drum 61 and passes through from the first rear opening 617A through the third front opening 616C. The first conduit 70 is connected to a suction device and can suck the liquid and air in the cavity. The second conduit 80 is connected to a pump and is used to pump out the liquid or air in the cavity. For example, when the user slides the roller 62 forward to slide the guide 623 into the third groove 613C, the second arm 622 moves from the rear end 612 to the front end 611 and presses against the second conduit 80 to move, so as to reduce or stop the flow of fluid or air through the second conduit 80( Figure 15A ). When the user slides the roller 62 backward to slide the guide 623 into the third groove 613C, the first arm 621 moves from the front end 611 to the rear end 612 and presses against the first conduit 70 to move, so as to reduce or stop the suction of fluid or air through the first conduit 70( Figure 15B ).

[0073] According to a second embodiment of the present invention, the multi-functional intracavitary instrument can be used in sinus surgery, especially in conjunction with Caldwell Luc surgery (CWS). In a preferred embodiment, the drum 61 includes two through tubes 615, one of which can accommodate an endoscope and the other can accommodate an optical fiber. The second tube 80 can be filled with a physiological saline solution and an adrenaline solution in a ratio of 1:100,000. For example, during CWS, the submucosa of the patient is infiltrated with the above solution through the second tube 80 of the multi-functional intracavitary instrument of the present invention to help reduce bleeding. When a 1.5 mm opening is made in the anterior wall of the maxillary sinus with an electro-cutting drill or a perforator and a hammer, and then the sinus opening is enlarged with a perforating forceps, the multi-functional intracavitary instrument with an endoscope and an optical fiber of the present invention can be used to examine the sinuses.

[0074] According to a third embodiment of the present invention, the materials of the hollow handle 10, the connecting rod 20, the universal joint 30, the top member 40, and the control valve 60 are all light guiding materials, including but not limited to polymers such as propylene, polymethyl methacrylate (PMMA), polycarbonate, or glass. When at least one oral or nasal cavity related surgical instrument is a light source and is accommodated in the hollow handle 10, light can pass through the front end 111 of the hollow handle 10, the connecting rod 20, the universal joint 30, the top member 40, and the control valve 60 to provide illumination for the narrow cavity.

[0075] As Figure 16A and Figure 16B shown, according to a fourth embodiment of the present invention, the connecting rod 20 further includes a retractor 23 near the sleeve 21. More specifically, as Figure 16C shown, when the connecting rod 20 is connected to the universal joint 30 through the hollow head 31, the position of the retractor 23 of the connecting rod does not affect the rotation of the universal joint 30. Preferably, the shape of the retractor 23 includes but is not limited to circular, oval, bell-shaped, drop-shaped, or axe-shaped. More preferably, one end of the retractor 23 has two pins 231, and a notch 232 is provided between the two pins 231. When the two pins 231 extend in a direction away from each other, it can be used for a wider cavity or retract more tissues or organs. When the multi-functional intracavitary instrument of the present invention is used in dental surgery, the retractor 23 of the connecting rod 20 can be used to retract or protect soft tissues or structures during the surgical procedure to increase the visibility of the surgical site. In addition, the retractor 23 can also be used to separate the edges of the surgical incision / wound or keep certain organs and tissues separated during the surgical procedure.

[0076] For those skilled in the art, various modifications to these embodiments will be apparent, and the novel principles and concepts disclosed herein can be applied to other embodiments without the use of innovative techniques. The claimed subject matter is not limited to the embodiments shown herein, but should be accorded the broadest scope consistent with the principles and novel features disclosed herein. Other embodiments are considered to be within the spirit and true scope of the disclosed subject matter. Accordingly, the present disclosure encompasses modifications and variations within the scope of the appended claims and their equivalents.

Claims

1. A multi-functional intracavitary instrument for intracavitary surgery, comprising a hollow handle having a front end and a rear end; a connecting rod having a sleeve and connected to the front end of the hollow handle; a universal joint having a hollow spherical head and a base, wherein the spherical head is pivotally connected to the sleeve of the connecting rod; and, a top member detachably connected to the base of the universal joint.

2. The multi-functional intracavitary instrument according to claim 1, further comprising at least one surgical instrument related to the oral cavity or nasal cavity, which can be accommodated in the hollow handle.

3. The multi-functional intracavitary instrument according to claim 2, wherein at least one surgical device related to the oral cavity or nasal cavity includes an endoscope, an imaging device, a light source, a laser, an ultrasonic power head, a flushing device or a suction device.

4. The multi-functional intracavitary instrument according to claim 1, wherein the shape of the connecting rod includes tubular, cylindrical, conical, bullet-shaped or frustum-shaped.

5. The multi-functional intracavitary instrument according to claim 1, wherein the sleeve of the connecting rod rotatably accommodates the spherical head of the universal joint.

6. The multi-functional intracavitary instrument according to claim 1, wherein the front end of the hollow handle has a threaded stud, and the bottom end of the connecting rod has an internal thread to be detachably connected to the front end of the hollow handle having the threaded stud.

7. The multi-functional intracavitary instrument according to claim 1, wherein the universal joint has a neck between the hollow spherical head and the base, and the diameter of the neck matches the diameter of the sleeve of the connecting rod.

8. The multi-functional intracavitary instrument according to claim 1, wherein the base of the universal joint has a polygonal portion and a tapered stud, and the polygonal portion is located between the neck and at least one pin.

9. The multi-functional intracavitary instrument according to claim 8, wherein the polygonal portion of the universal joint is hexagonal, and the at least one pin has a curved surface.

10. The multi-functional intracavitary instrument according to claim 9, wherein the top member has a hollow drum, an operating portion and an opening, wherein the operating portion is adjacent to the hollow drum and is configured for surgical operations; the inner wall of the hollow drum is hexagonal to match the shape of the polygonal portion of the universal joint; the opening is adjacent to the operating portion.

11. The multi-functional intracavitary instrument according to claim 10, wherein the operating portion of the top member includes a periodontal probe, a flat drill, a flat knife, a probe, a scraper, a filling instrument, a bite former, a guiding forceps, a periosteal elevator, a periodontal membrane separator, forceps, a retractor and a suction probe.

12. The multi-functional intracavitary instrument according to claim 10, wherein the opening of the top member is configured for at least one instrument related to oral cavity or nasal cavity surgery to perform surgery.

13. The multi-functional intracavitary instrument according to claim 1, further comprising a tail cap connected to the rear end of the hollow handle.

14. The multi-functional intracavitary instrument according to claim 1, wherein the material of the top member is made of an elastic material, and the top member has a first channel and two second channels, wherein the first channel is located between the two second channels, and the two second channels are adapted for metal wires to help maintain the shape of the top member.

15. The multi-functional intracavitary instrument according to claim 14, wherein the elastic material includes silicone or shape memory metal.

16. The multi-functional intracavitary instrument according to claim 1, wherein the materials of the hollow handle, the connecting rod, the universal joint, and the top member are all light guiding materials.

17. The multi-functional intracavitary instrument according to claim 1, wherein the connecting rod further has a retractor near the sleeve.

18. The multi-functional intracavitary instrument according to claim 17, wherein the shape of the retractor includes circular, oval, bell-shaped, teardrop-shaped, or ax-shaped.

19. The multi-functional intracavitary instrument according to claim 17, wherein one end of the retractor has two pins and a notch located between the two pins.

20. A multi-functional intracavitary instrument for intracavitary surgery, comprising a hollow handle having a front end and a rear end; a connecting rod having a sleeve and connected to the front end of the hollow handle; a universal joint having a hollow spherical head and a base, wherein the spherical head is pivotally connected to the sleeve of the connecting rod; a top member detachably connected to the base of the universal joint; and, a control valve having a drum connected to the front end of the hollow handle; and, a roller partially slidably extending outside the drum.

21. The multi-functional intracavitary instrument according to claim 20, wherein the drum has a front end and a rear end; a cross-channel extending longitudinally from the front end to the rear end of the drum; and at least one through-tube formed longitudinally through the drum; Among them, The cross-channel includes a first groove, a second groove, a third groove, and a slot, the first groove is relative to the second groove, the third groove is located between the first groove and the second groove, and the slot is relative to the third groove.

22. The multi-functional intracavitary instrument according to claim 20, wherein the front end of the drum has a first front opening, a second front opening opposite to the first front opening, and a third front opening near the first front opening; the rear end of the drum has a first rear opening, a second rear opening opposite to the first rear opening, and a third rear opening near the first rear opening.

23. The multi-functional intracavitary instrument according to claim 22, wherein the first front opening and the third front opening are respectively in communication with the first rear opening; the second front opening is respectively in communication with the second rear opening and the third rear opening.

24. The multi-functional intracavitary instrument according to claim 22, wherein the roller is cross-shaped and includes a first arm and a second arm, and the second arm is horizontally symmetric with the first arm; the ends of the first arm and the second arm are spherical, respectively adapting to the shapes of the first groove and the second groove of the drum.

25. The multi-functional intracavitary instrument according to claim 24, wherein the first arm of the roller is located in the first groove and is configured to slide between the front end and the rear end of the drum; the second arm of the roller is located in the second groove and is configured to slide between the front end and the rear end of the drum.

26. The multi-functional intracavitary instrument according to claim 25, wherein the roller further includes a guiding portion, and the guiding portion rotates and slides in the third groove of the drum, and the guiding portion partially protrudes from the slot.

27. The multi-functional intracavitary instrument according to claim 26, which further includes a first pipe and a second pipe, wherein the first pipe is disposed in the hollow grip and passes from the first rear opening to the third front opening; the second pipe is disposed in the hollow grip and passes from the second front opening to the third rear opening.

28. The multi-functional intracavitary instrument according to claim 20, which further includes at least one surgical instrument related to the oral cavity or nasal cavity, accommodated in at least one through pipe of the drum.

29. The multi-functional intracavitary instrument according to claim 28, wherein at least one surgical instrument related to the oral cavity or nasal cavity includes an endoscope, an imaging device, a light source, a laser, an ultrasonic power head, a flushing device or a suction device.

30. The multi-functional intracavitary instrument according to claim 20, wherein the shape of the connecting rod includes tubular, cylindrical, conical, bullet-shaped or frustum-shaped.

31. The multi-functional intracavitary instrument according to claim 20, wherein the connecting rod is adapted to rotatably accommodate the spherical head of the universal joint.

32. The multi-functional intracavitary instrument according to claim 20, wherein the front end of the hollow grip has a threaded stud, and the bottom end of the connecting rod has an internal thread for detachably connecting with the front end of the hollow grip having the threaded stud.

33. The multi-functional intracavitary instrument according to claim 20, wherein the universal joint has a neck between the hollow spherical head and the base, and the diameter of the neck matches the diameter of the sleeve of the connecting rod.

34. The multi-functional intracavitary instrument according to claim 20, wherein the base of the universal joint has a polygonal portion and a tapered stud, and the polygonal portion is located between the neck and at least one pin.

35. The multi-functional intracavitary instrument according to claim 34, wherein the polygonal portion is hexagonal, and the at least one pin has a curved surface.

36. The multi-functional intracavitary instrument according to claim 35, wherein the top member has a hollow drum, an operating portion, and an opening, wherein the operating portion is adjacent to the hollow drum, and the operating portion is configured for surgical operations; the inner wall of the hollow drum is hexagonal to match the shape of the polygonal portion of the universal joint; the opening is adjacent to the operating portion.

37. The multi-functional intracavitary instrument according to claim 36, wherein the operating portion suitable for performing surgeries includes a periodontal probe, a flat drill, a flat knife, a probe, a curette, a filling instrument, a bite former, a guiding forceps, a periosteal elevator, a periodontal membrane separator, forceps, a retractor, and a suction probe.

38. The multi-functional intracavitary instrument according to claim 36, wherein the opening of the top member is configured for an instrument for at least one oral or nasal cavity-related surgery to perform the surgery.

39. The multi-functional intracavitary instrument according to claim 20, further comprising a tail cap, and the tail cap is connected to the rear end of the hollow handle.

40. The multi-functional intracavitary instrument according to claim 20, wherein the material of the top member is made of an elastic material, and the top member has a first channel and two second channels, wherein the first channel is located between the two second channels, and the two second channels are suitable for metal wires to help maintain the shape of the top member.

41. The multi-functional intracavitary instrument according to claim 40, wherein the elastic material includes silicone or shape memory metal.

42. The multi-functional intracavitary instrument according to claim 20, wherein the materials of the hollow handle, the connecting rod, the universal joint, and the top member are all light guiding materials.

43. The multi-functional intracavitary instrument according to claim 20, wherein the connecting rod has a retractor near the sleeve.

44. The multi-functional intracavitary instrument according to claim 43, wherein the shape of the retractor includes circular, oval, bell-shaped, teardrop-shaped, or ax-shaped.

45. The multi-functional intracavitary instrument according to claim 43, wherein one end of the retractor is provided with two pins and a notch located between the two pins.

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