A stripping device for stripping maxillary sinus mucosa and its use

Abstract

The present invention relates to the field of medical devices, and in particular to a stripping device for stripping the maxillary sinus mucosa and its use. The stripping device for the maxillary sinus mucosa comprises a stripping head and a rotating component connected to the stripping head. The present invention changes the appearance of the stripping device by mechanical rotation, specifically by driving the direction of the stripping head to change through the rotation of the rotating component, so that after the stripping device enters the implantation socket through the alveolar ridge top, the doctor can change the angle of the stripping head and effectively strip the maxillary sinus mucosa by simply rotating the control handle connected to the gear. In addition, the length of the stripping head is the same or different from that of the rotating component, preferably different, so as to facilitate the user to replace instruments during maxillary sinus surgery.

Description

Technical Field

[0001] The present invention relates to the field of medical instruments, and in particular to a stripping device for stripping maxillary sinus mucosa and a use thereof. Background Art

[0002] When a patient's maxillary posterior teeth are missing, the bottom wall of the maxillary sinus will drop to the position of the original root of the missing tooth. If an implant is implanted at this time, it may penetrate the maxillary sinus wall. For this reason, it is often necessary to transplant some synthetic bone substitutes to lift it to its original position, so that the implant can be kept in the maxillary bone. This surgical process is called maxillary sinus lift. At present, the most commonly used dental implant surgery for patients with insufficient bone volume in the maxillary sinus area is maxillary sinus lift, including intra-maxillary sinus lift and extra-maxillary sinus lift. Among them, intra-maxillary sinus lift is also called trans-alveolar ridge maxillary sinus lift, which is usually incorporated into the first stage of implant placement and does not require additional surgeries. Intra-maxillary sinus lift has the advantages of simple operation, short operation time, and less edema, but its disadvantage is that the operation cannot be performed under direct vision. If the operation is wrong, it will easily lead to rupture of the maxillary sinus mucosa. Although the maxillary sinus lift can be performed under direct vision, it has extremely high technical requirements. During the operation, the maxillary sinus will also experience respiratory floating, which is quite difficult and requires the physician to have rich clinical experience and excellent professional skills.

[0003] Traditional transalveolar ridge maxillary sinus lift surgery is usually performed using the percussion method or the water pressure method. The percussion method is to use straight or curved osteotome with different diameters to separate the maxillary sinus mucosa from the maxillary sinus floor through the top punching technique; while the water pressure method is to use water pressure to separate the maxillary sinus mucosa from the maxillary sinus floor. Although both methods are currently widely used in clinical practice, there is still a risk of maxillary sinus mucosal perforation under blind conditions. In particular, when there are partitions or bone ridges in the maxillary sinus cavity, the chance of perforation will be greatly increased. Summary of the invention

[0004] In order to improve the deficiencies of the prior art, the present invention provides a stripping device for the maxillary sinus mucosa, comprising a stripping head and a rotating component connected to the stripping head.

[0005] According to an embodiment of the present invention, the rotating member is used to change the direction of the stripping head by rotation.

[0006] According to an embodiment of the present invention, the rotating component can rotate so that the central axis of the stripping head and the central axis of the stripping device form an angle of 0° to 90° in the direction toward the stripping head, for example, 0°, 1°, 2°, 3°, 4°, 5°, 10°, 15°, 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, 65°, 70°, 75°, 80°, 85° or 90°.

[0007] According to an embodiment of the present invention, the rotating component includes a housing and a gear transmission device disposed in the housing.

[0008] According to an embodiment of the present invention, the housing of the rotating component may include more than two housing components, such as two or three housing components.

[0009] According to an embodiment of the present invention, a gear transmission device is independently arranged in each of the housing components.

[0010] According to a preferred embodiment of the present invention, the housing comprises a first housing component and a second housing component, wherein a first gear transmission device is disposed in the first housing component, and a second gear transmission device is disposed in the second housing component.

[0011] Further exemplarily, the housing may also include a first housing component, a second housing component and a third housing component, wherein the first housing component is provided with a first gear transmission device, the second housing component is provided with a second gear transmission device, and the third housing component is provided with a third gear transmission device.

[0012] More preferably, when the housing of the rotating component comprises more than two housing components, the first housing component is connected to the stripping head.

[0013] According to an embodiment of the present invention, when the housing of the rotating component includes more than two housing components, adjacent housing components may be nested with each other or connected via rolling bearings.

[0014] According to an embodiment of the present invention, at least a portion of each of the housing components is a tubular structure. Preferably, each of the housing components is a tubular structure as a whole.

[0015] According to an embodiment of the present invention, the portions where adjacent housing components are nested with each other or connected via rolling bearings are tubular structures, and the cross-section of the tubular structure is elliptical.

[0016] According to an embodiment of the present invention, the stripping head is detachably connected to the rotating component, and / or the stripping head and the rotating component are of the same or different lengths, thereby facilitating the user to replace the stripping head during maxillary sinus surgery.

[0017] According to the embodiment of the present invention, there is no limitation on the specific structure of the gear transmission device, as long as it can realize the rotation of the housing assembly and the rotating component through the rotation of the gear. As an example, each of the gear transmission devices can be an internal gear transmission device.

[0018] According to an embodiment of the present invention, each of the gear transmission devices may include a first gear fixed to an inner wall of the housing assembly and a second gear meshing with the first gear.

[0019] According to an embodiment of the present invention, in each of the gear transmission devices, the first gear is fixed to the inner wall of the housing assembly, and the second gear can rotate along the teeth meshing with the first gear.

[0020] According to an embodiment of the present invention, when the central axis of the stripping head forms an angle greater than 0° with the central axis of the stripping device, the axis of the first gear in each of the gear transmission devices is not parallel to the axis of the housing assembly. Preferably, in each of the gear transmission devices, the axis of the first gear in the gear transmission device and the axis of the housing assembly form different angles in the direction toward the stripping head.

[0021] According to an embodiment of the present invention, the axes of the second gears in different housing assemblies may be parallel or non-parallel.

[0022] According to an embodiment of the present invention, the stripping device further comprises a control device.

[0023] According to an embodiment of the present invention, the control device may be connected to the second gear in each of the gear transmission devices to control the movement of the second gear.

[0024] Alternatively, according to an embodiment of the present invention, the control device may further include a driving device to provide a driving force for the movement of the second gear. For example, the control device is connected to the driving device, and the driving device is connected to the second gear in each of the gear transmission devices to drive the movement of the second gear.

[0025] According to an embodiment of the present invention, the number of the control devices may be one, two or more. As an example, the number of the control devices is the same as the number of the gear transmission devices, so as to control different gear transmission devices respectively.

[0026] According to an embodiment of the present invention, the driving device can be selected from an electric or manual driving device, such as a micro motor or an adjusting wheel.

[0027] According to an embodiment of the present invention, the control device or the driving device may be connected to the second gear via a connecting rod.

[0028] According to an embodiment of the present invention, the control device or driving device can be selected from electric or manual devices, such as a control handle and / or an electric controller.

[0029] According to an embodiment of the present invention, the diameter of each of the first gears is the same or different, and the diameter of each of the second gears is the same or different.

[0030] According to an embodiment of the present invention, the stripping device further comprises a handheld component, wherein the stripping head and the handheld component are respectively connected to two ends of the rotating component.

[0031] According to an embodiment of the present invention, the outer surface of the stripping head is a smooth surface.

[0032] Preferably, the outer surface of the stripping head, the rotating component and / or the handheld component may be a smooth surface.

[0033] According to an embodiment of the present invention, the stripping head, the rotating component and / or the handheld component of the stripping device are made of metal material. Preferably, the metal material is selected from at least one of titanium, titanium alloy and stainless steel.

[0034] According to an embodiment of the present invention, the control device is located inside or outside the exfoliation device, for example inside or outside the handpiece.

[0035] According to the embodiment of the present invention, there is no particular limitation on the shape of the stripping head. For example, the stripping head may be flat, conical, wedge-shaped or other shapes suitable for stripping the maxillary sinus mucosa.

[0036] According to an embodiment of the present invention, there is no particular limitation on the length of the stripping head, for example, it may be 1-10 mm, preferably 3-6 mm, such as 3 mm, 4 mm or 5 mm.

[0037] According to an embodiment of the present invention, there is no particular limitation on the length of the rotating member, for example, it may be 1-10 mm, preferably 3-10 mm, such as 4 mm, 5 mm or 6 mm.

[0038] According to an embodiment of the present invention, the total length of the stripping head and the rotating component is 3-15 mm, preferably 5-12 mm, for example 8 mm, 10 mm, 12 mm.

[0039] The present invention also provides an application of the above-mentioned stripping device in separating mucosa, for example, in stripping maxillary sinus mucosa.

[0040] Beneficial Effects

[0041] The present invention changes the appearance of the stripping device by mechanical rotation, specifically by driving the direction of the stripping head to change through the rotation of the rotating component, so that after the stripping device enters the implantation socket through the alveolar ridge top, the doctor can change the angle of the stripping head by simply rotating the control handle connected to the gear, and effectively strip the maxillary sinus mucosa, avoiding the risk of maxillary sinus mucosa rupture caused by the limitation of the instrument itself. In addition, the stripping head and the rotating component are the same or different in length, preferably different, so that it is convenient for users to replace instruments during maxillary sinus surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of the structure of the stripper used for stripping the maxillary sinus mucosa in Examples 1, 3 and 4 of the present invention;

[0043] Figure 2 This is a schematic diagram of the structure of the rotating component viewed from the position of the stripping head in Embodiment 1-4 of the present invention;

[0044] Figure 3 Schematic diagram of the structure of the stripper used for stripping the maxillary sinus mucosa in Example 2 of the present invention.

[0045] in, Figure 1 and 2 The reference numerals have the following meanings: 1 - stripping head, 2 - rotating part, 3 - hand-held part, 4 - housing of rotating part, 5 - gear transmission device, 51 - first gear transmission device, 52 - second gear transmission device, 6 - control handle, 7 - connecting rod;

[0046] Figure 3 The reference numerals have the following meanings: 1 - stripping head, 2 - rotating part, 3 - handheld part, 4 - housing of rotating part, 5 - gear transmission device, 51 - first gear transmission device, 52 - second gear transmission device, 6 - micro motor and controller, 7 - connecting rod. DETAILED DESCRIPTION

[0047] The structure and application of the present invention will be further described in detail below in conjunction with specific embodiments. It should be understood that the following embodiments are only exemplary descriptions and explanations of the present invention and should not be construed as limiting the scope of protection of the present invention. All technologies implemented based on the above content of the present invention are included in the scope that the present invention is intended to protect.

[0048] Example 1

[0049] See also Figure 1 and Figure 2As shown, this embodiment provides a stripper for stripping the maxillary sinus mucosa, the stripper comprises a stripping head 1, a rotating part 2 and a handheld part 3 connected in sequence, the outer surfaces of the stripping head 1, the rotating part 2 and the handheld part 3 are all smooth, the stripping head 1 is a flat structure, the length of the stripping head 1 is 3-10mm, the length of the rotating part 2 is 3-10mm, the total length of the stripping head 1 and the rotating part 2 is 3-15mm, and the length of the stripping head 1 and the rotating part 2 is the same or different, so that the stripping operation can be performed in the maxillary sinus after bending. In this embodiment, the length of the stripping head 1 is 3mm, and the length of the rotating part 2 is 4mm.

[0050] The rotating part 2 includes a housing 4, which includes a first housing and a second housing (not shown). A gear transmission device 5 is disposed inside the housing 4, and the gear transmission device 5 includes two sets of gear transmission devices disposed inside the housing, including: a first gear transmission device 51 disposed inside the first housing and in contact with the stripping head, and a second gear transmission device 52 located at the end of the first gear transmission device 51 and disposed inside the second housing.

[0051] The first housing and the second housing are both tubular structures with elliptical cross-sections, and they can be nested in each other or connected via rolling bearings.

[0052] The first gear transmission device 51 and the second gear transmission device 52 are each independently an internal gear transmission device, and each includes a first gear fixed to the inner wall of the first shell and the inner wall of the second shell, and a second gear meshing with the first gear. The first gear is fixed to the inner wall of the shell assembly, and the second gear can rotate along the teeth meshing with the first gear.

[0053] When the central axis of the stripping head forms an angle greater than 0° with the central axis of the stripping device, the axis of the first gear in each of the gear transmission devices is not parallel to the axis of the housing assembly. Preferably, in each of the gear transmission devices, the axis of the first gear in the gear transmission device and the axis of the housing assembly form different angles in the direction toward the stripping head.

[0054] The stripping head is detachably connected to the rotating component, and / or the stripping head and the rotating component have the same or different lengths, so that it is convenient for the user to replace the stripping head during maxillary sinus surgery.

[0055] Two manual control handles 6 are provided at the bottom of the handheld component 3, and each control handle 6 is connected to the second gear in the first gear transmission device 51 or the second gear transmission device 52 through a connecting rod 7. When in use, the user rotates one of the control handles 6 to rotate the corresponding second gear connected to the connecting rod 7, thereby driving the housing 4 to rotate, so that the bending angle of the stripping head 1 changes, and then the angle of the stripping head 1 is changed without changing the position of the handheld component 3, so as to effectively strip the mucosa.

[0056] Example 2

[0057] See also Figure 2 and Figure 3 As shown, this embodiment provides a stripper for stripping the maxillary sinus mucosa, the stripper comprises a stripping head 1, a rotating part 2 and a handheld part 3 connected in sequence, the outer surfaces of the stripping head 1, the rotating part 2 and the handheld part 3 are all smooth, the stripping head 1 is a flat structure, the length of the stripping head 1 is 3-10mm, the length of the rotating part 2 is 3-10mm, the total length of the stripping head 1 and the rotating part 2 is 3-15mm, and the length of the stripping head 1 and the rotating part 2 is the same or different, so that the stripping operation can be performed in the maxillary sinus after bending. In this embodiment, the length of the stripping head 1 is 3mm, and the length of the rotating part 2 is 4mm.

[0058] The rotating part 2 includes a housing 4, which includes a first housing and a second housing (not shown). A gear transmission device 5 is disposed inside the housing 4, and the gear transmission device 5 includes two sets of gear transmission devices disposed inside the housing, including: a first gear transmission device 51 disposed inside the first housing and in contact with the stripping head, and a second gear transmission device 52 located at the end of the first gear transmission device 51 and disposed inside the second housing.

[0059] The first housing and the second housing are both tubular structures with elliptical cross-sections, and they can be nested in each other or connected via rolling bearings.

[0060] The first gear transmission device 51 and the second gear transmission device 52 are each independently an internal gear transmission device, and each includes a first gear fixed to the inner wall of the first shell and the inner wall of the second shell, and a second gear meshed with the first gear. The first gear is fixed to the inner wall of the shell assembly, and the second gear can rotate along the teeth meshed with the first gear.

[0061] When the central axis of the stripping head forms an angle greater than 0° with the central axis of the stripping device, the axis of the first gear in each of the gear transmission devices is not parallel to the axis of the housing assembly. Preferably, in each of the gear transmission devices, the axis of the first gear in the gear transmission device and the axis of the housing assembly form different angles in the direction toward the stripping head.

[0062] The stripping head is detachably connected to the rotating component, and / or the stripping head and the rotating component have the same or different lengths, so that it is convenient for the user to replace the stripping head during maxillary sinus surgery.

[0063] Different from the first embodiment, the manual control handle 6 provided at the bottom of the hand-held component 3 is replaced with a micro motor and a controller in the present embodiment, and is connected to the second gear in the first gear transmission device 51 or the second gear transmission device 52 through a connecting rod 7. When in use, the user rotates the corresponding second gear connected to the connecting rod 7 through the controller and the micro motor, thereby driving the housing 4 to rotate, so that the bending angle of the stripping head 1 changes, and then the angle of the stripping head 1 is changed without changing the position of the hand-held component 3, so as to effectively strip the mucosa.

[0064] Alternatively, two groups of micro motors and controllers may be provided at the bottom of the handheld component 3 to independently control the second gear in the first gear transmission device 51 or the second gear transmission device 52 through the connecting rod 7. Alternatively, two groups of micro motors and an integrated group of controllers may be provided at the bottom of the handheld component 3, and the two groups of micro motors may be independently controlled by the controller, thereby controlling the second gear in the first gear transmission device 51 or the second gear transmission device 52 through the connecting rod 7.

[0065] Example 3

[0066] See also Figure 1 and Figure 2 As shown, this embodiment provides a stripper for stripping the maxillary sinus mucosa, the stripper comprising a stripping head 1, a rotating component 2 and a hand-held component 3 connected in sequence, the outer surfaces of the stripping head 1, the rotating component 2 and the hand-held component 3 are all smooth surfaces, the stripping head 1 is a flat structure, the length of the stripping head 1 is 4 mm, and the length of the rotating component 2 is 5 mm.

[0067] The rotating part 2 includes a housing 4, which includes a first housing and a second housing (not shown). A gear transmission device 5 is disposed inside the housing 4, and the gear transmission device 5 includes two sets of gear transmission devices disposed inside the housing, including: a first gear transmission device 51 disposed inside the first housing and in contact with the stripping head, and a second gear transmission device 52 located at the end of the first gear transmission device 51 and disposed inside the second housing.

[0068] The first housing and the second housing are both tubular structures with elliptical cross-sections, and they can be nested in each other or connected via rolling bearings.

[0069] The first gear transmission device 51 and the second gear transmission device 52 are each independently an internal gear transmission device, and each includes a first gear fixed to the inner wall of the first shell and the inner wall of the second shell, and a second gear meshing with the first gear. The first gear is fixed to the inner wall of the shell assembly, and the second gear can rotate along the teeth meshing with the first gear.

[0070] When the central axis of the stripping head forms an angle greater than 0° with the central axis of the stripping device, the axis of the first gear in each of the gear transmission devices is not parallel to the axis of the housing assembly. Preferably, in each of the gear transmission devices, the axis of the first gear in the gear transmission device and the axis of the housing assembly form different angles in the direction toward the stripping head.

[0071] The stripping head is detachably connected to the rotating component, and / or the stripping head and the rotating component have the same or different lengths, so that it is convenient for the user to replace the stripping head during maxillary sinus surgery.

[0072] Two manual control handles 6 are provided at the bottom of the handheld component 3, and each control handle 6 is connected to the second gear in the first gear transmission device 51 or the second gear transmission device 52 through a connecting rod 7. When in use, the user rotates one of the control handles 6 to rotate the corresponding second gear connected to the connecting rod 7, thereby driving the housing 4 to rotate, so that the bending angle of the stripping head 1 changes, and then the angle of the stripping head 1 is changed without changing the position of the handheld component 3, so as to effectively strip the mucosa.

[0073] Example 4

[0074] See also Figure 1 and Figure 2 As shown, this embodiment provides a stripper for stripping the maxillary sinus mucosa, the stripper comprising a stripping head 1, a rotating component 2 and a hand-held component 3 connected in sequence, the outer surfaces of the stripping head 1, the rotating component 2 and the hand-held component 3 are all smooth surfaces, the stripping head 1 is a flat structure, the length of the stripping head 1 is 5 mm, and the length of the rotating component 2 is 6 mm.

[0075] The rotating part 2 includes a housing 4, which includes a first housing and a second housing (not shown). A gear transmission device 5 is disposed inside the housing 4, and the gear transmission device 5 includes two sets of gear transmission devices disposed inside the housing, including: a first gear transmission device 51 disposed inside the first housing and in contact with the stripping head, and a second gear transmission device 52 located at the end of the first gear transmission device 51 and disposed inside the second housing.

[0076] The first housing and the second housing are both tubular structures with elliptical cross-sections, and they can be nested in each other or connected via rolling bearings.

[0077] The first gear transmission device 51 and the second gear transmission device 52 are each independently an internal gear transmission device, and each includes a first gear fixed to the inner wall of the first shell and the inner wall of the second shell, and a second gear meshing with the first gear. The first gear is fixed to the inner wall of the shell assembly, and the second gear can rotate along the teeth meshing with the first gear.

[0078] When the central axis of the stripping head forms an angle greater than 0° with the central axis of the stripping device, the axis of the first gear in each of the gear transmission devices is not parallel to the axis of the housing assembly. Preferably, in each of the gear transmission devices, the axis of the first gear in the gear transmission device and the axis of the housing assembly form different angles in the direction toward the stripping head.

[0079] The stripping head is detachably connected to the rotating component, and / or the stripping head and the rotating component have the same or different lengths, so that it is convenient for the user to replace the stripping head during maxillary sinus surgery.

[0080] Two manual control handles 6 are provided at the bottom of the handheld component 3, and each control handle 6 is connected to the second gear in the first gear transmission device 51 or the second gear transmission device 52 through a connecting rod 7. When in use, the user rotates one of the control handles 6 to rotate the corresponding second gear connected to the connecting rod 7, thereby driving the housing 4 to rotate, so that the bending angle of the stripping head 1 changes, and then the angle of the stripping head 1 is changed without changing the position of the handheld component 3, so as to effectively strip the mucosa.

[0081] The above examples are used to illustrate the specific implementation of the present invention. However, the protection scope of the present invention is not limited to the above exemplary implementation. Any modification, equivalent substitution, improvement, etc. made by those skilled in the art within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A device for stripping the maxillary sinus mucosa, characterized in that: The stripping device comprises a stripping head and a rotating component connected to the stripping head; the rotating component is used to change the direction of the stripping head by rotation; the rotating component can rotate so that the central axis of the stripping head and the central axis of the stripping device form an angle of 0° to 90° in the direction toward the stripping head; the rotating component comprises a housing and a gear transmission device arranged in the housing; the housing of the rotating component comprises more than two housing components, each of which is independently provided with a gear transmission device; at least a part of each of the housing components is a tubular structure; The stripping device further comprises a handheld component, wherein the stripping head and the handheld component are respectively connected to two ends of the rotating component.

2. The stripping device according to claim 1, characterized in that: Adjacent housing components are nested in each other or connected via rolling bearings.

3. The stripping device according to claim 1, characterized in that: The housing comprises a first housing component and a second housing component, wherein a first gear transmission device is arranged in the first housing component, and a second gear transmission device is arranged in the second housing component.

4. The stripping device according to claim 1, characterized in that: The housing comprises a first housing component, a second housing component and a third housing component, wherein a first gear transmission device is arranged in the first housing component, a second gear transmission device is arranged in the second housing component, and a third gear transmission device is arranged in the third housing component.

5. The stripping device according to claim 3, characterized in that: The first housing component is connected to the stripping head.

6. The stripping device according to claim 1, characterized in that: Each of the housing components is a tubular structure as a whole.

7. The stripping device according to claim 1, characterized in that: The parts where adjacent housing components are nested with each other or connected by rolling bearings are tubular structures, and the cross section of the tubular structure is elliptical.

8. The stripping device according to any one of claims 1 to 6, characterized in that: The stripping head is detachably connected to the rotating component, and / or the stripping head and the rotating component have the same or different lengths, so that it is convenient for the user to replace the stripping head during maxillary sinus surgery.

9. The stripping device according to any one of claims 1 to 6, characterized in that: Each of the gear transmission devices is an internal gear transmission device.

10. The stripping device according to any one of claims 1 to 6, characterized in that: Each of the gear transmission devices includes a first gear fixed to the inner wall of the housing assembly and a second gear meshing with the first gear.

11. The stripping device according to any one of claims 1 to 6, characterized in that: When the central axis of the stripping head forms an angle greater than 0° with the central axis of the stripping device, the axis of the first gear in each of the gear transmission devices is not parallel to the axis of the housing assembly.

12. The stripping device according to any one of claims 1 to 6, characterized in that: In each of the gear transmission devices, the angles formed by the axis of the first gear in the gear transmission device and the axis of the housing assembly in the direction toward the stripping head are different.

13. The stripping device according to any one of claims 1 to 6, characterized in that: The stripping device further comprises a control device connected to the second gear in each of the gear transmission devices to control the movement of the second gear.

14. The stripping device according to claim 13, characterized in that: The control device is located inside or outside the stripping device.

15. The stripping device according to claim 13, characterized in that: The control device is located inside the handheld component or outside the handheld component.

16. The stripping device according to any one of claims 1 to 6, characterized in that: The length of the stripping head is 1-10 mm, and the length of the rotating component is 1-10 mm.

17. The stripping device according to claim 16, characterized in that: The total length of the stripping head and the rotating component is 3-15 mm.

Images