Auxiliary fixator for free gingival transplantation operation

Abstract

The invention relates to the technical field of dental surgery assistive devices, in particular to an auxiliary fixator for a free gum transplantation surgery, which is characterized in that a mounting frame is fixedly arranged at the front end of the upper surface of a base, two mounting shafts are bilaterally symmetrically and rotatably arranged on the mounting frame through bearings, a supporting arm is rotatably arranged on a rotating arm through a rotating shaft, and a mounting seat is fixedly arranged at one end of the supporting arm; the tension spring is fixedly arranged at the end, away from the mounting shaft, of the rotary arm, the other end of the tension spring is fixedly arranged at the end, away from the mounting base, of the supporting arm, the spline sleeve is rotationally arranged on the mounting base through a bearing, the upper end of the spline sleeve is open, and the spline shaft is movably inserted into the upper end opening of the spline sleeve. The side pillow is rotationally arranged at one end of the connecting arm away from the spline shaft through a rotating shaft; by arranging the clamping structure with the elastic moving space, the head of a user is fixed and limited, and the situation that the head of the user shakes in the operation process and influences the operation is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of dental surgical aids, and in particular to an auxiliary fixator for free gingival transplantation surgery. Background Art

[0002] Free gingiva is a part of soft tissue on the outside of the gum that is not in contact with the gingival pit and wrapped around the outside of the tooth root. Its function is to cover the outside of the tooth root to protect and support the tooth root and gingival pit. Free gingiva plays an important role in dental tissue. In severe tartar disease, necrosis of the free gingiva is likely to occur, and surgical repair of the free gingiva is required at this time. Usually free gingiva surgery is an autologous transplantation surgery, which requires the healthy free gingiva of the body to be transplanted to the diseased site through surgery. Usually the width of the free gingiva is 1-2mm, which requires the doctor to perform delicate operations during the operation, and the patient's head and mouth need to be fixed as much as possible during the operation to prevent the patient's body shaking from affecting the accuracy of the operation. Based on the above problems, it is necessary to design corresponding auxiliary fixing devices to assist in the fixation and positioning of the patient. Summary of the invention

[0003] The purpose of the present invention is to address the defects and shortcomings of the prior art and to provide an auxiliary fixator for free gingival transplantation surgery, which achieves fixed positioning of the user's head by setting a clamping structure with an elastic activity space, thereby preventing the user from being affected by the operation due to shaking of the head during the operation.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] It includes the base, it also contains:

[0006] A clamping and mounting mechanism, wherein the clamping and mounting mechanism is arranged on the base;

[0007] A support and limit mechanism is provided on the clamping and mounting mechanism.

[0008] Preferably, the clamping and mounting mechanism comprises:

[0009] A mounting frame, the mounting frame is fixedly arranged on the front end of the upper surface of the base;

[0010] Installation shafts, the installation shafts are two and are symmetrically arranged on the installation frame through bearings;

[0011] A support arm, wherein the support arm is rotatably mounted on the rotary arm via a rotating shaft;

[0012] A mounting seat, wherein the mounting seat is fixedly arranged on one end of the support arm, and the lower surface of the mounting seat is movably abutted against the upper surface of the base;

[0013] A tension spring is fixedly arranged on one end of the rotary arm away from the mounting shaft, and the other end of the tension spring is fixedly arranged on one end of the support arm away from the mounting seat.

[0014] Preferably, the support and limiting mechanism comprises:

[0015] A spline sleeve, wherein the spline sleeve is screwed onto the mounting seat via a bearing, and the upper end of the spline sleeve is opened;

[0016] A spline shaft, wherein the spline shaft is movably inserted into an upper port of the spline sleeve;

[0017] A connecting arm, wherein the connecting arm is fixedly arranged on the spline shaft;

[0018] A side pillow is rotatably arranged on an end of the connecting arm away from the spline shaft through a rotating shaft.

[0019] Preferably, a worm is rotatably mounted on the mounting frame via a bearing, a worm wheel is fixedly mounted on one of the two mounting shafts, the worm and the worm wheel are meshed, a spur gear is fixedly mounted on the mounting shaft, and the spur gears on the two mounting shafts are meshed with each other.

[0020] Preferably, a ratchet is fixedly provided on the spline sleeve, and an elastic pawl is fixedly provided on the mounting seat, and the elastic pawl is meshed with the ratchet.

[0021] Preferably, springs are provided on the side walls of the side pillow on both sides of the connecting arm, and one end of the spring away from the side pillow is fixedly provided on the connecting arm.

[0022] Preferably, a limiting groove is provided on the base, and the limiting groove is arranged between the left and right side pillows, and a limiting guard plate is fixedly provided on the mounting frame, and the limiting guard plate is arranged in front of the limiting groove.

[0023] Preferably, a neck pillow is provided on the rear side wall of the base, and the neck pillow is arranged behind the limiting groove, and clamping pillows are symmetrically provided on the left and right side walls of the neck pillow through a rotating shaft.

[0024] Preferably, a support seat is fixedly provided on the rear side wall of the base, and a supporting threaded rod is symmetrically provided on the support seat through a bearing, a supporting threaded sleeve is fixedly provided on the inner wall of the neck pillow, the supporting threaded rod is inserted in the lower port of the supporting threaded sleeve through a threaded connection, a lifting threaded rod is symmetrically provided on the support seat through a bearing, a lifting threaded sleeve is provided on the lifting threaded rod through a threaded connection, the side wall of the lifting threaded sleeve is abutted against the inner side wall of the clamping pillow, and the upper end of the lifting threaded sleeve is abutted against the upper inner side wall of the clamping pillow, a driving shaft is rotated on the support seat through a bearing, a bevel gear set is used for transmission between the lower end of the supporting threaded rod and the driving shaft, and a bevel gear set is used for transmission between the lower end of the lifting threaded rod and the driving shaft.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. This solution provides a base with a limit slot, and provides openable and closable side pillows on the left and right sides of the upper limit slot of the base, a liftable neck pillow is provided behind the upper limit slot of the base, and a closable clamping pillow is provided on the left and right sides of the neck pillow, thereby realizing auxiliary fixation of the user's head during free gingival surgery;

[0027] 2. This scheme sets two swing arms through the installation shaft of the linkage transmission, and sets a support arm on the swing arm, and pulls the swing arm and the support arm through a tension spring to realize the free rotation of the support arm within a certain range, sets a mounting seat on the support arm to install the connecting arm, and rotates a side pillow on the connecting arm, and pulls the side pillow and the connecting arm through a group of two springs to realize the swinging, rotation and resetting of the side pillow, so as to achieve the movement space of the user's head within a certain range when the user's head is clamped by the side pillow, and reset by tensioning the spring and the tension spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the present invention.

[0029] Figure 2 yes Figure 1 Upper side view of .

[0030] Figure 3 yes Figure 1 Left side view of .

[0031] Figure 4 yes Figure 1 Figure 1. The rear side view.

[0032] Figure 5 It is a structural schematic diagram of the rotary arm, support arm, connecting arm and side pillow in the present invention.

[0033] Figure 6 It is a structural schematic diagram of a base, a neck pillow and a clamping pillow in the present invention.

[0034] Figure 7 yes Figure 6 Figure 1. The rear side view.

[0035] Figure 8 It is a structural schematic diagram of a neck pillow and a clamping pillow in the present invention.

[0036] Description of reference numerals:

[0037] Base 1, clamping and mounting mechanism 2, mounting frame 2-1, mounting shaft 2-2, swing arm 2-3, support arm 2-4, mounting seat 2-5, tension spring 2-6, support and limiting mechanism 3, spline sleeve 3-1, spline shaft 3-2, connecting arm 3-3, side pillow 3-4, worm 4, worm wheel 5, spur gear 6, ratchet 7, elastic pawl 8, spring 9, limiting groove 10, limiting guard plate 11, neck pillow 12, clamping pillow 13, support seat 14, supporting threaded rod 15, supporting threaded sleeve 16, lifting threaded rod 17, lifting threaded sleeve 18, driving shaft 19, transmission shaft 20. DETAILED DESCRIPTION

[0038] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. The preferred embodiments in the description are only used as examples, and all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present invention.

[0039] like Figure 1-8 As shown, this specific implementation adopts the following technical solutions:

[0040] It comprises a base 1, which also comprises:

[0041] A clamping and mounting mechanism 2, wherein the clamping and mounting mechanism 2 is arranged on the base 1;

[0042] A support and limit mechanism 3, wherein the support and limit mechanism 3 is arranged on the clamping and mounting mechanism 2;

[0043] The clamping and mounting mechanism 2 comprises:

[0044] A mounting frame 2-1, wherein the mounting frame 2-1 is fixedly arranged at the front end of the upper surface of the base 1;

[0045] Installation shafts 2-2, the installation shafts 2-2 are two and are symmetrically arranged on the installation frame 2-1 through bearings;

[0046] The swing arm 2-3 is two and is symmetrically fixed on the mounting shaft 2-2 on the left and right sides;

[0047] A support arm 2-4, wherein the support arm 2-4 is rotatably mounted on the rotary arm 2-3 via a rotating shaft;

[0048] A mounting seat 2-5, wherein the mounting seat 2-5 is fixedly disposed on one end of the support arm 2-4, and a lower surface of the mounting seat 2-5 is movably disposed against an upper surface of the base 1;

[0049] A tension spring 2-6, wherein the tension spring 2-6 is fixedly arranged on one end of the swing arm 2-3 away from the mounting shaft 2-2, and the other end of the tension spring is fixedly arranged on one end of the support arm 2-4 away from the mounting seat 2-5;

[0050] A worm 4, wherein the worm 4 is rotatably mounted on the mounting frame 2-1 via a bearing;

[0051] A worm wheel 5, wherein the worm wheel 5 is fixedly arranged on one of the mounting shafts 2-2, and the worm wheel 5 and the worm 4 are meshed with each other;

[0052] Spur gear 6, the spur gear 6 is sleeved and fixed on the mounting shaft 2-2, and the two spur gears 6 are meshed with each other;

[0053] The support and limiting mechanism 3 comprises:

[0054] A spline sleeve 3-1, wherein the spline sleeve 3-1 is screwed onto the mounting seat 2-5 via a bearing, and the upper end of the spline sleeve 3-1 is opened;

[0055] A spline shaft 3-2, wherein the spline shaft 3-2 is movably inserted into the upper port of the spline sleeve 3-1;

[0056] A connecting arm 3-3, wherein the connecting arm 3-3 is fixedly arranged on the spline shaft 3-2;

[0057] A side pillow 3-4, wherein the side pillow 3-4 is rotatably mounted on the connecting arm 3-3 at one end away from the spline shaft 3-2 via a rotating shaft;

[0058] Ratchet 7, the ratchet 7 is sleeved and fixed on the spline sleeve 3-1;

[0059] An elastic pawl 8, wherein the elastic pawl 8 is fixedly arranged on the side wall of the mounting seat 2-5, and the elastic pawl 8 is engaged with the ratchet wheel 7;

[0060] Spring 9, wherein two springs 9 are in a group and are located at the front and rear sides of the connecting arm 3-3 and fixedly arranged on the side wall of the side pillow 3-4, and one end of the spring 9 away from the side pillow 3-4 is fixedly arranged on the connecting arm 3-3;

[0061] A limit guard plate 11, wherein the limit guard plate 11 is fixedly arranged on the rear side wall of the mounting frame 2-1, and a limit groove 10 is integrally formed on the base 1 between the left and right side pillows 3-4, and the limit guard plate 11 is arranged in front of the limit groove 10;

[0062] A support seat 14, wherein the support seat 14 is fixedly disposed on the rear side wall of the base 1;

[0063] A supporting threaded rod 15, wherein the supporting threaded rod 15 is screwed onto the supporting seat 14 via a bearing;

[0064] A supporting threaded sleeve 16, wherein the supporting threaded sleeve 16 is sleeved on the supporting threaded rod 15 through a threaded connection;

[0065] A neck pillow 12, wherein the neck pillow 12 is fixedly arranged on the supporting threaded sleeve 16, and the neck pillow 12 is arranged behind the limiting groove 10, and the front side wall of the neck pillow 12 is movably arranged on the rear side wall of the base 1;

[0066] A clamping pillow 13, wherein the clamping pillow 13 is two and symmetrically disposed at the left and right ends of the neck pillow 12 through a rotating shaft, and the front side wall of the clamping pillow 13 is movably disposed against the rear side wall of the base 1;

[0067] Lifting threaded rods 17, wherein the lifting threaded rods 17 are two and are symmetrically disposed on the left and right ends of the support seat 14 through bearings;

[0068] A lifting threaded sleeve 18, wherein the lifting threaded sleeve 18 is sleeved on the lifting threaded rod 17 through a Luvoun screw connection, and the left and right lifting threaded sleeves 18 are respectively inserted into the left and right clamping pillows 13, the side wall of the lifting threaded sleeve 18 is movably abutted against the inner side wall of the clamping pillow 13, and the upper end of the lifting threaded sleeve 18 is movably abutted against the upper inner side wall of the clamping pillow 13;

[0069] The pitch of the thread groove of the lifting threaded rod 17 is greater than the pitch of the thread of the supporting threaded rod 15, so that when the lifting threaded rod 17 and the supporting threaded rod 15 rotate with the same power, the stroke of the lifting threaded sleeve 18 is greater than the stroke of the supporting threaded sleeve 16;

[0070] The driving shaft 19 is rotatably mounted on the supporting seat 14 through a bearing, and the lower end of the lifting threaded rod 17 and the lower end of the supporting threaded rod 15 are both connected to the driving shaft 19 through a bevel gear set;

[0071] The transmission shaft 20 is rotatably mounted on the base 1 through a bearing, and the front end of the transmission shaft 20 is extended in front of the base 1, and the rear end of the transmission shaft 20 is connected to the drive shaft 19 through a bevel gear set.

[0072] When using the device, the movable ends of the swing arm 2-3 and the support arm 2-4 are pulled by the tension spring 2-6, so that the left and right support arms 2-4 drive the side pillow 3-4 to be clamped in the middle, and the front and rear ends of the side pillow 3-4 are pulled by a group of two springs 9 to achieve a tension balance state of the front and rear ends of the side pillow 3-4 on the connecting arm 3-3; the user places the head in the limit groove 10, and makes the user's neck above the neck pillow 12, and pulls the connecting arm 3-3 according to the user's head position, so that the connecting arm 3-3 rotates with the spline sleeve 3-1 as the axis, so that the connecting arm 3-3 drives the side pillow 3-4 to move and adjust the front and rear positions of the side pillow 3-4, and when the connecting arm 3-3 rotates, the spline sleeve 3-1 drives the ratchet 7 to rotate, and The ratchet wheel 7 is clamped by the elastic pawl 8 to achieve a fixed single-stage rotation angle limit of the connecting arm 3-3, and then the worm 4 is rotated to drive one of the two mounting shafts 2-2 to rotate through the meshing worm wheel 5. The two mounting shafts 2-2 rotate through the meshing spur gear 6 to achieve the same speed and opposite direction rotation of the two mounting shafts 2-2, and the mounting shaft 2-2 drives the swing arm 2-3 to rotate, and the swing arm 2-3 pulls the support arm 2-4 to rotate through the tension spring 2-6, and drives the mounting seat 2-5 to move through the support arm 2-4, and the mounting seat 2-5 drives the side pillow 3-4 to move through the connecting arm 3-3, so that the user's head is clamped and limited by the side pillow 3-4. When the user's head shakes, the side pillow 3-4 is pulled by the front and rear two springs 9 and is aligned with the connecting arm The shaft of 3-3 is used as a support to realize the left and right swinging activities of the front and rear ends of the side pillow 3-4, and when the front and rear ends of the side pillow 3-4 swing, they are pulled by the spring 9, so that after the side pillow 3-4 is forced to swing, the spring 9 is pulled and tensioned, and after the force is unloaded, the side pillow 3-4 is pulled back to its original position by the spring 9. When the user's head pushes the side pillow 3-4 to swing left and right, the side pillow 3-4 is driven to rotate by the connecting arm 3-3 and the mounting seat 2-5, and at this time, the support arm 2-4 rotates with the connecting shaft with the swing arm 2-3 as a support and tightens the tension spring 2-6, so that after the force is unloaded, the support arm 2-4 is pulled back to its original position by the tension spring 2-6, that is, the side pillow 3-4 is driven back to its original position; the rotating transmission shaft 20 drives the driving shaft 19 to rotate, so that the driving shaft 19 drives The dynamic supporting threaded rod 15 and the lifting threaded rod 17 rotate, the supporting threaded rod 15 rotates and pushes the supporting threaded sleeve 16 to move, so that the supporting threaded sleeve 16 pushes the neck pillow 12 to move and at the same time drives the clamping pillow 13 to move synchronously through the neck pillow 12, the lifting threaded rod 17 pushes the lifting threaded sleeve 18 to move, thereby synchronously pushing the clamping pillow 13 to rotate through the lifting threaded sleeve 18, and, when the supporting threaded sleeve 16 and the lifting threaded sleeve 18 rise, the upward moving speed of the lifting threaded sleeve 18 is greater than the rising moving speed of the supporting threaded sleeve 16, so that the neck pillow 12 rises and at the same time, the clamping pillows 13 on both sides are rotated toward the middle and clamped, conversely, when the neck pillow 12 descends, the clamping pillow 13 opens and releases to both sides.

[0073] Compared with the prior art, the present invention has the following beneficial effects:

[0074] 1. The device realizes clamping and fixing of the user's head by setting side pillows 3-4 and cooperating with the limiting groove 10 on the base 1. At the same time, a lifting and moving neck pillow 12 is set on the base 1, and a clamping pillow 13 is set on the neck pillow 12 to support and clamp the user's neck in the lateral direction, thereby realizing auxiliary fixation of the user's head during free gingival surgery;

[0075] 2. The device is provided with a support arm 2-4, and a support arm 2-4 having a movable end pulled by a tension spring 2-6 is provided on the support arm 2-4, so that a connecting arm 3-3 is provided on the support arm 2-4 through a mounting seat 2-5, and a side pillow 3-4 is provided on the connecting arm 3-3 and pulled by a spring 9, so that the side pillow 3-4 can be swung, and the movable space of the user's head can be maintained when the side pillow 3-4 clamps the user's head.

[0076] For those skilled in the art, they can modify the technical solutions described in the aforementioned embodiments and make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An auxiliary fixator for free gingival transplantation surgery, comprising a base (1), characterized in that: It also contains: A clamping and mounting mechanism (2), wherein the clamping and mounting mechanism (2) is arranged on the base (1); A support and limit mechanism (3), wherein the support and limit mechanism (3) is arranged on the clamping and mounting mechanism (2).

2. The auxiliary fixator for free gingival transplantation surgery according to claim 1, characterized in that: The clamping and mounting mechanism (2) comprises: A mounting frame (2-1), wherein the mounting frame (2-1) is fixedly arranged at the front end of the upper surface of the base (1); Installation shafts (2-2), the installation shafts (2-2) being two and symmetrically disposed on the installation frame (2-1) through bearings; A support arm (2-4), wherein the support arm (2-4) is rotatably mounted on the rotary arm (2-3) via a rotating shaft; A mounting seat (2-5), wherein the mounting seat (2-5) is fixedly arranged on one end of the support arm (2-4), and the lower surface of the mounting seat (2-5) is movably abutted against the upper surface of the base (1); A tension spring (2-6) is fixedly arranged on one end of the rotary arm (2-3) away from the mounting shaft (2-2), and the other end of the tension spring (2-6) is fixedly arranged on one end of the support arm (2-4) away from the mounting seat (2-5).

3. The auxiliary fixator for free gingival transplantation surgery according to claim 2, characterized in that: The support and limiting mechanism (3) comprises: A spline sleeve (3-1), wherein the spline sleeve (3-1) is rotatably mounted on the mounting seat (2-5) via a bearing, and the upper end of the spline sleeve (3-1) is opened; A spline shaft (3-2), wherein the spline shaft (3-2) is movably inserted into an upper port of the spline sleeve (3-1); A connecting arm (3-3), wherein the connecting arm (3-3) is fixedly arranged on the spline shaft (3-2); A side pillow (3-4) is rotatably arranged on an end of the connecting arm (3-3) away from the spline shaft (3-2) via a rotating shaft.

4. The auxiliary fixator for free gingival transplantation surgery according to claim 3, characterized in that: A worm (4) is rotatably mounted on the mounting frame (2-1) via a bearing, a worm wheel (5) is fixedly mounted on one of the two mounting shafts (2-2), the worm (4) and the worm wheel (5) are meshed, a spur gear (6) is fixedly mounted on the mounting shaft (2-2), and the spur gears (6) on the two mounting shafts (2-2) are meshed with each other.

5. The auxiliary fixator for free gingival transplantation surgery according to claim 4, characterized in that: A ratchet (7) is fixedly arranged on the spline sleeve (3-1), and an elastic pawl (8) is fixedly arranged on the mounting seat (2-5), and the elastic pawl (8) is meshed with the ratchet (7).

6. The auxiliary fixator for free gingival transplantation surgery according to claim 5, characterized in that: Springs (9) are arranged on the side walls of the side pillow (3-4) on both sides of the connecting arm (3-3), and one end of the spring (9) away from the side pillow (3-4) is fixedly arranged on the connecting arm (3-3).

7. The auxiliary fixator for free gingival transplantation surgery according to claim 6, characterized in that: The base (1) is provided with a limiting groove (10), and the limiting groove (10) is arranged between the left and right side pillows (3-4); a limiting guard plate (11) is fixedly arranged on the mounting frame (2-1), and the limiting guard plate (11) is arranged in front of the limiting groove (10).

8. The auxiliary fixator for free gingival transplantation surgery according to claim 7, characterized in that: A neck pillow (12) is arranged on the rear side wall of the base (1), and the neck pillow (12) is arranged behind the limiting groove (10). A clamping pillow (13) is symmetrically arranged on the left and right side walls of the neck pillow (12) through a rotating shaft.

9. The auxiliary fixator for free gingival transplantation surgery according to claim 8, characterized in that: A support seat (14) is fixedly arranged on the rear side wall of the base (1), and a support threaded rod (15) is symmetrically arranged on the support seat (14) through a bearing, and a support threaded sleeve (16) is fixedly arranged on the inner wall of the neck pillow (12), and the support threaded rod (15) is inserted into the lower port of the support threaded sleeve (16) through a threaded connection, and a lifting threaded rod (17) is symmetrically arranged on the support seat (14) through a bearing, and the lifting threaded rod (17) is screwed on the lifting threaded rod (17) through a threaded connection. A lifting thread sleeve (18) is sleeved, the side wall of the lifting thread sleeve (18) is abutted against the inner wall of the clamping pillow (13), and the upper end of the lifting thread sleeve (18) is abutted against the upper inner wall of the clamping pillow (13), a driving shaft (19) is rotatably arranged on the support seat (14) through a bearing, a bevel gear set is used to drive the lower end of the supporting thread rod (15) and the driving shaft (19), and a bevel gear set is used to drive the lower end of the lifting thread rod (17) and the driving shaft (19).

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