WO2019120075A1

WO2019120075A1 - Temporomandibular joint distractor and temporomandibular joint pressing device

Info

Publication number: WO2019120075A1
Application number: PCT/CN2018/119216
Authority: WO
Inventors: 罗毅; 方伟
Original assignee: 上海微创骨科医疗科技有限公司
Priority date: 2017-12-20
Filing date: 2018-12-04
Publication date: 2019-06-27
Also published as: CN108175637B; BR112020008883A2; CN108175637A

Abstract

A temporomandibular joint distractor and a temporomandibular joint pressing device (20). The temporomandibular joint pressing device (20) is for enlarging the temporomandibular joint space and comprises: an installation base (50); at least one pressing structure (21) and at least one adjustment structure (22) installed on the installation base (50). The pressing structure (21) comprises a pressing part (211) and a connecting part (212). The pressing part (211) is connected to the adjustment structure (22) via the connecting part (212), such that, under the action of the adjustment structure (22), the connecting part (212) drives the pressing part (211) to move to a temporomandibular joint of a patient and to press down on the temporomandibular joint. The temporomandibular joint pressing device (20) adjusts, via the adjustment structure (22), the position of the pressing structure (21) relative to the temporomandibular joint, so as to enable the pressing structure (21) to press down on the temporomandibular joint of the patient so as to stretch the temporomandibular joint space to a certain degree, allowing the patient to open their mouth to a larger angle and thus achieving greater convenience in the use of the temporomandibular joint distractor.

Description

Temporomandibular joint retractor and temporomandibular joint compression device

Technical field

The present application relates to the field of medical device technology, and in particular to a temporomandibular joint retractor and a temporomandibular joint pressing device.

Background technique

Temporomandibular joint dysfunction is one of the most common clinical diseases. It is listed as the fourth oral epidemic affecting human health by WHO. The temporomandibular joint dysfunction syndrome refers to pain, squeaking, muscle soreness in the temporomandibular joint area. A syndrome of a series of symptoms such as fatigue, limited mouth opening, and temporomandibular joint dysfunction. Some cases have repeated episodes, prolonged, and prolonged unhealed, seriously affecting masticatory muscles and language function. From the perspective of modern medicine, the cause of this disease is more complicated and it is still unclear.

It is currently believed to be related to factors such as emotional instability, physical weakness, disordered tooth occlusion, and trauma. These factors affect the normal structure of the mandibular joint or cause the coordinated movement of the ligaments to the muscles attached to the joint structure. The existing treatment methods mainly include light, electricity, needle, injection, physical therapy, etc.; for example, super laser treatment instrument, temporomandibular arthroscopy, acupuncture combined with ultrashort wave therapy, super laser irradiation combined with local injection of temporomandibular joint, thorn blood plus Treatment methods such as warm-needle treatment, each of which has advantages and disadvantages, is suitable for different groups of people.

In addition, the traction device can also be used to exercise the patient's occlusion. However, the current temporomandibular joint traction device cannot perform the pre-opening operation of the temporomandibular joint of the patient, so that the temporomandibular joint can not be opened at a good angle. The patient's mouth is either discomforted due to being stiffened.

Summary of the invention

Based on this, it is necessary to solve the problem that the temporomandibular joint traction device can not open the gap in the temporomandibular joint and affect the distraction effect of the temporomandibular joint traction device, and provide a sputum that can open the temporomandibular joint. A jaw joint pressing device and a temporomandibular joint retractor including the temporomandibular joint pressing device.

A temporomandibular joint pressing device for pulling apart a gap between the temporomandibular joints, comprising a mounting seat and at least one pressing structure and at least one adjusting structure mounted on the mounting seat, the pressing structure comprising a pressing member and a connecting member, the pressing member is connected to the adjusting structure through the connecting member, wherein the connecting member drives the pressing member to move to a user's jaw joint and push down under the action of the adjusting structure Jaw joints.

In one embodiment, the adjustment structure includes a driving assembly and a rotating assembly; the rotating assembly includes a first rotating member mounted on the mounting seat; the driving assembly is adapted to drive the first rotating member to rotate One end of the connecting member is connected to the first rotating member, and the other end is connected to the pressing member to drive the first rotating member when the driving assembly drives the first rotating member to rotate The connector rotates downward to cause the pressing member to push the jaw joint downward.

In one embodiment, the pressing member includes a pressing portion and an adjusting portion, the adjusting portion is screwed to the connecting member, and the pressing portion is disposed on the adjusting portion to be opposite to the adjusting portion The movement of the connector resists the temporomandibular joint.

In one embodiment, the adjusting portion is a screwing screw, and the pressing portion is an elastic ball, and the screwing screw is detachably coupled to the elastic ball.

In one embodiment, the first rotating member includes a first rotating wheel, a sidewall of the first rotating wheel has a first cutting plane, and the first cutting surface is away from a side of the driving assembly. A first hook-shaped abutment is retained; the drive assembly includes an axially movable abutment adapted to abut the first hook-shaped abutment.

In one of the embodiments, the mounting seat is provided with a wheel base that supports the first rotating wheel through a rotating shaft.

In one embodiment, the driving assembly includes: an outer tube, a knob, a driving screw and the abutting member; the outer tube is fixedly connected to the mounting seat; and the driving screw is screwed to the outer tube And one end of the driving screw is connected to the knob, and the other end is connected to the abutting member; when the knob is screwed, the driving screw can press the first hook through the abutting member The abutting portion is configured to cause the first rotating wheel to drive the connecting member to rotate.

In one embodiment, the abutting member has a wedge shape at one end of the first hook abutting portion.

In one embodiment, the outer peripheral wall of the first rotating wheel is provided with a radially extending connecting shaft, and the connecting member is detachably sleeved on the connecting shaft.

Correspondingly, the present application further provides a temporomandibular joint retractor comprising a occlusion portion and the above-mentioned temporomandibular joint pressing device, the occlusal portion including a first mouthpiece piece and a second mouthpiece piece; the first bite The mouth piece is opposite to the second mouthpiece piece to suit the mouth of the user.

In one embodiment, the temporomandibular joint retractor further includes a first adjustment handle and a second adjustment handle; the first mouthpiece piece is coupled to the mount by a rotating structure, and the second mouthpiece piece is The mounts are connected, and the first mouthpiece piece can be moved closer to or away from the second mouthpiece piece and rotate at an angle to act on the first adjustment handle and the second adjustment handle The first adjusting handle and the second adjusting handle are respectively used for adjusting the disengaging strength of the two sides of the engaging portion.

In one embodiment, the rotating structure includes two second rotating members; two of the second rotating members are arranged side by side along their rotation axes and are respectively rotatably connected to the mounting seat, and two of the second rotating members The rotating members are respectively connected to both sides of the first mouthpiece piece; the second mouthpiece piece is connected to the mounting seat to rotate when the two second rotating pieces are respectively rotated relative to the mounting seat The two second rotating members drive the first mouthpiece piece to rotate relative to the second mouthpiece piece.

In one embodiment, the first adjustment handle and the second adjustment handle are respectively disposed corresponding to the two second rotation members; the first adjustment handle and the second adjustment handle each include a ejector And an elastic member and an adjusting member; one end of the jack is offset from the rotating axis of the second rotating member on the second rotating member, and the elastic member is used to abut the top rod a rotating member for driving the second rotating member to rotate relative to the mounting seat to open the engaging portion; the adjusting member is movable relative to the plunger to abut the elastic member against the jack And adjusting the stretching force of the elastic member to extend the occlusal portion through the ejector rod.

In one embodiment, the second rotating member includes a second rotating wheel, one end of the top rod abuts the elastic member, and the other end of the top rod is rotatably connected to the second rotating wheel And the connection between the jack and the second runner is offset from the rotation axis of the second runner.

In one embodiment, the first adjustment handle and the second adjustment handle further comprise a handle housing coupled to the mount, the handle housing having a hollow tubular structure; the adjustment member, The elastic member and the ejector are sequentially disposed in the handle housing along the axial direction of the handle housing.

In one embodiment, the adjustment member includes a screw that is inserted into the handle housing and is screwed with the handle housing to screw the screw relative to the handle housing. The screw moves in the axial direction of the handle housing to drive the jack to press the second rotating member through the elastic member.

In one embodiment, the temporomandibular joint retractor further includes: a rotating structure, a first adjustment handle and a second adjustment handle; wherein the rotation structure comprises two second rotation members mounted on the mount, The rotation axes of the two second rotating members are largely coincident; the first mouthpiece piece and each of the second rotating pieces are respectively connected by a curved rod, and the second mouthpiece piece is connected with the mounting seat; The first adjusting handle is for elastically driving the rotation of one of the second rotating members, and the second adjusting handle is for elastically driving the rotation of the other of the second rotating members, so that the first mouthpiece piece can be opposite The second mouthpiece piece is opened, and the first mouthpiece piece can be closed in a direction close to the second mouthpiece piece under an external force.

In one embodiment, each of the second rotating members includes: a second rotating wheel supported by the mounting seat by a pin; each of the curved bars and the corresponding second a rotating wheel connection; the first adjusting handle and the second adjusting handle each comprise: a tubular housing mounted to the mounting seat; an adjusting member, an elastic member and a ejector rod sequentially sleeved in the tubular housing The adjustment member is screwed to the tubular housing and a first end of the adjustment member projects out of the tubular housing; a second end of the plunger extends out of the tubular housing and corresponds to The second rotating wheel is connected, the connecting point of the second end of the jack and the corresponding second rotating wheel is offset from the rotating axis of the second rotating wheel; the elastic member is located at the adjusting part The two ends are between the first end of the jack.

In one embodiment, the mounting seat is provided with two hollow supporting seats, and a second rotating wheel is mounted in one of the supporting seats through the pin; the housing of each of the supporting seats is provided with And a mounting notch, the swinging notch is configured to limit a range of a rotation angle of the crank rod, and the jack is connected to the second rotating wheel through the mounting slot.

In one embodiment, each of the second rotating wheels is respectively disposed with a driving arm protruding from the outer peripheral wall of the second rotating wheel, and the driving arm protrudes from the swinging notch, and the driving arm and the driving arm The curved rods are connected.

In one embodiment, the outer circumference of the second rotating wheel is provided with a second hook-shaped abutting portion, and the second end of the top rod abuts in the second hook-shaped abutting portion.

In one embodiment, the outer circumference of the second reel is provided with a second cutting surface, and the second hook abutting portion is disposed on a side of the second cutting plane away from the ejector rod.

In one of the embodiments, the second end of the jack is wedge shaped.

In one embodiment, the first end of the adjusting member is provided with a knob; the tubular housing is provided with a dial corresponding to one end of the adjusting member, and the knob is provided with a pointer or a mark.

In one embodiment, the elastic member is a spring, and a pressing block is disposed between the second end of the adjusting member and the spring; the pressing block is provided with a limit for accommodating the end of the adjusting member a groove, and the compact is provided with a cylindrical portion for arranging the spring.

The temporomandibular joint retractor and the temporomandibular joint pressing device have a pressing structure and an adjusting structure, and adjust the structure to adjust the position of the pressing structure relative to the temporomandibular joint, thereby causing the pressing structure to pull down the temporomandibular joint of the user The jaw joint is opened to a certain gap, which is convenient for the user to open the mouth at a larger angle, so that the temporomandibular joint tractor can easily open the mouth of the user at a large angle.

DRAWINGS

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings to be used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present application, and those skilled in the art can obtain drawings of other embodiments according to the drawings without any creative work.

1 is a schematic view showing the structure of a temporomandibular joint retractor according to an embodiment;

2 is a top plan view of the temporomandibular joint retractor shown in FIG. 1;

Figure 3 is a partial structural schematic view of the temporomandibular joint retractor shown in Figures 1 and 2;

4 is a side elevational view showing the temporomandibular joint pressing device of the temporomandibular joint retractor shown in FIG. 3;

Figure 5 is a schematic structural view of the first reel shown in Figures 3 and 4;

6 is a cross-sectional view showing a first adjustment handle/second adjustment handle and a rotating structure in an embodiment;

Figure 7 is a schematic view showing the installation of the first adjustment handle/second adjustment handle and the rotating structure shown in Figure 6;

FIG. 8 is a schematic structural view of the second reel shown in FIG. 7.

Detailed ways

In order to facilitate the understanding of the present application, the present application will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present application are given in the accompanying drawings. However, the application can be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be more thorough and comprehensive.

It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or the element can be present. When an element is considered to be "connected" to another element, it can be directly connected to the other element or. The terms "inner", "outside", "left", "right", and the like, as used herein, are for the purpose of illustration and are not intended to be the only embodiment.

1 and 2, a temporomandibular joint retractor according to an embodiment of the present application includes a occlusion portion 10, a temporomandibular joint pressing device 20, a first adjustment handle 30, a second adjustment handle 40, and a mounting seat 50. .

The occlusal portion 10 includes a first mouthpiece piece 11 and a second mouthpiece piece 12. The first mouthpiece piece 11 and the second mouthpiece piece 12 are oppositely disposed on the mounting seat 50, and the first mouthpiece piece 11 and the second mouthpiece piece 12 are relatively movable to fit the user's mouth to open the user. Oral, temporomandibular joint traction exercise. In this embodiment, the temporomandibular joint pressing device 20 is oppositely disposed on both sides of the occlusal portion 10 by the mounting seat 50 so as to oppose the temporomandibular joint of the user, thereby pressing the temporomandibular joint, more specifically, pressing down. The mandible connected to the jaw joint opens a gap between the temporomandibular joint (ie, between the mandible and the tibia through the temporomandibular joint), making it easier for the user's mouth to open, thereby facilitating the occlusal portion 10 easier. Extend the user's mouth at a large angle. It will be understood that the two sides herein (eg, the sides of the occlusal portion 10) refer to the left and right sides of the user's mouth.

It should be noted that, in the present embodiment, the first adjusting handle 30 and the second adjusting handle 40 are respectively extended by the adjustment of the first adjusting handle 30 and the second adjusting handle 40, and the first adjusting handle 30 and the second adjusting handle 40 are respectively disposed on both sides of the engaging portion 10. , respectively, for adjusting the stretching force on both sides of the occlusal portion 10 to meet the user's exercise needs.

As shown in FIG. 2, the temporomandibular joint pressing device 20 includes a mount 50 and at least one pressing structure 21 and at least one adjustment structure 22 mounted on the mount 50. When the two pressing structures 21 and the two adjusting structures 22 are disposed on the mount 50, as shown, a pair of pressing structures 21 and adjusting structures 22 are disposed on one side, and another pair of pressing structures 21 and adjusting structures 22 are disposed on On the other side, to correspond to the temporomandibular joint on both sides of the user. The pressing structure 21 includes at least one pressing member 211 and a connecting member 212. The pressing member 211 is connected to the adjusting structure 22 through the connecting member 212. Under the action of the adjusting structure 22, the connecting member 212 drives the pressing member 211 to move to the user. At the jaw joint and push down the mandibular joint of the temporomandibular joint, the gap between the temporomandibular joints is opened, that is, the temporomandibular joint is opened, and the user with restricted opening is made to open the mouth. In this embodiment, the pressing member 211 includes a pressing portion 211a and an adjusting portion 211b. The adjustment portion 211b is screwed to the connector 212, and the pressing portion 211a is provided on the adjustment portion 211b and is adapted to be in contact with the user's face. By screwing the adjustment portion 211b, the adjustment portion 211b is axially movable and drives the pressing portion 211a to move, so that the pressing portion 211a can approach the user's face and thereby press the temporomandibular joint or away from the user's face. When the pressing portion 211a is pressed against the temporomandibular joint, the connecting member 212 is driven to move downward by the adjusting structure 22, so that the pressing portion 211a can be pushed downward to push the mandibular joint of the temporomandibular joint, and the temporomandibular joint can be pulled apart, thereby It is relatively easy for the user to open the mouth, and it is convenient for the occlusion portion 10 to open the user's mouth for the temporomandibular joint traction exercise.

It should be noted that the pressing member 211 may be a screwing bolt having an indenter at the end, and the pressing head is, for example, a ball made of rubber, silica gel or other elastic plastic material, and the pressing head can function as the pressing portion 211a. effect. The indenter is configured to be in a structure and material suitable for contact with a human face to press the temporomandibular joint and push down the mandible of the temporomandibular joint under the action of the connecting member 212 to thereby open the gap between the temporomandibular joints. The stud portion of the screw bolt functions as the adjusting portion 211b. Since the stud portion of the screw bolt is screwed to the connecting member 212, the relative position of the pressing head and the user's face can be adjusted by screwing the screw. The indenter is brought against the user's temporomandibular joint or the indenter is removed from the user's temporomandibular joint.

In some embodiments, the indenter and the screw bolt can be mated with threads or other detachable connections such that the indenter can be removed from the screw bolt, and the screw bolt can be removed from the connector 212 to meet different demand. For example, one temporomandibular joint pressing device 20 may be provided with only one pressing member 211. When the temporomandibular joint on the left side of the user needs to be pushed down, the pressing member 211 can be assembled to the connector 212 on the left side of the user, so that the ram is aligned with the temporomandibular joint portion on the left side of the user; accordingly, it needs to be pushed down. When the temporomandibular joint on the right side of the user, the pressing member 211 can be assembled to the connecting member 212 on the right side of the user, so that the pressing head is aligned with the temporomandibular joint portion on the right side of the user, that is, the mounting position of the pressing head faces The temporomandibular joint that needs treatment. If the temporomandibular joints on both sides need to be pulled down a certain gap, at this time, the connecting members 212 of the left and right sides of the user are provided with the mounting members 211, so that the pressing portions 211a of the pressing members 211 located on both sides of the user are respectively pressed on both sides of the user. At the temporomandibular joint, the specific operation will not be repeated here.

In the above embodiment, the connecting member 212 serves as a transmission structure that transmits the force of the adjustment mechanism to the pressing member 211 and pushes the pressing member 211 downward to push the temporomandibular joint, and may be a rod-like structure similar to the force arm. The adjusting structure 22 drives the connecting member 212 to push the pressing member 211 to press the temporomandibular joint in various ways. For example, the adjusting structure 22 can pull the pressing member 211 down the temporomandibular joint by applying a pulling force to the connecting member 212 in a certain direction. It is also possible to drive the pressing member 211 to move along a certain movement trajectory by driving the connecting member 212, so that the pressing member 211 exerts a downward moving thrust at the temporomandibular joint, thereby pulling the temporomandibular joint into a certain gap. In some embodiments, the adjustment structure 22 drives the connecting rod to rotate relative to the mounting seat 50 such that the pressing member 211 can move up and down relative to the occlusal portion 10 connected to the mounting seat 50 to move the pressing member 211 to the user's temporomandibular joint and Lower the temporomandibular joint. Further, the adjustment structure 22 will be used to drive the pressing member 211 to rotate relative to the mounting seat 50 through the connecting member 212 as an example for further explanation.

2, the adjustment structure 22 includes a drive assembly 221 and a rotary assembly 222 having at least a first rotating member mounted on the mounting base 50, the drive assembly 221 being adapted to drive the first rotating member to rotate. One end of the connecting member 212 is connected to the first rotating member, and the other end is connected to the pressing member 211. When the driving assembly 221 drives the first rotating member to rotate, the first rotating member drives the connecting member 212 to rotate downward to press the pressing member 211 to press the jaw joint. In some embodiments, in the initial state, the driving assembly 221 does not apply force to the first rotating member and does not interfere with the movement of the first rotating member, and the user bites the engaging portion 10 to fix the relative position of the mounting seat 50 to the user's face. The connector 212 can be manually rotated about the axis of rotation of the first rotating member to the temporomandibular joint and the pressing member 211 abuts against the temporomandibular joint. Then, the first rotating member is driven to rotate by the driving component 221, and the first rotating member drives the connecting member 212 to rotate downward, and the connecting member 212 drives the pressing member 211 to press the mandible of the temporomandibular joint to open the temporomandibular joint. The gap is convenient for the user to open the mouth, making it easier for the occlusal portion 10 of the temporomandibular joint retractor to open the mouth of the user.

As shown in FIG. 3 to FIG. 5, the first rotating member includes a first rotating wheel 2222, and the side wall of the first rotating wheel 2222 has a cutting surface 2222a parallel to the axial direction of the first rotating wheel 2222, and the cutting surface 2222a An abutting portion (first hook-shaped abutting portion) 2222b is reserved on a side away from the driving unit 221, and the abutting portion 2222b has an arc-shaped hook shape. In this embodiment, since the abutting portion 2222b is disposed on the side of the cutting surface 2222a away from the driving unit 221, that is, the abutting portion 2222b is offset from the rotation axis of the first rotating wheel 2222, and thus, the abutting portion 2222b is applied. When the force is not along the rotation axis, since the force has an eccentric force in the direction of the rotation axis of the first reel 2222, the first reel 2222 rotates about its rotation axis, thereby driving the connecting member 212 to drive the pressing member 211. The axis of rotation of the first wheel 2222 rotates, creating a compressive force on the temporomandibular joint. Specifically, since the pressing member 211 is rotated about the rotation axis of the first rotating wheel 2222 by the connecting member 212, when the pressing member 211 is rotated downward, there is a downward force component, and there is also a The forward force component is such that the downward pressure direction applied by the pressing member 211 is adapted to the trajectory of the temporomandibular joint, thereby facilitating the temporomandibular joint to be opened more easily, thereby making the temporomandibular joint tractor easier to open. The user's mouth can avoid the patient's discomfort caused by the strong expansion.

As shown in FIG. 4, the drive assembly 221 includes an outer tube 221a, a knob 2211, a drive screw 2213, and an abutment member 2214. One end of the driving screw 2213 is fixedly connected to the knob 2211, and the other end is provided with an abutting member 2214. The abutting member 2214 abuts against the abutting portion 2222b of the first rotating wheel 2222, and the abutting portion 2222b preferably catches the abutting member 2214. The end. When the knob 2211 is screwed, the driving screw 2213 moves axially to protrude toward the first rotating wheel 2222, so that the abutting member 2214 presses against the abutting portion 2222b, and the driving screw 2213 continues to protrude, thereby causing the first rotating wheel 2222 to rotate. Then, the connecting member 212 connected to the first rotating wheel 2222 is rotated downward, so that the pressing member 211 is pressed down to the temporomandibular joint. It should be noted that, in some embodiments, the driving screw 2213 can be axially mounted in a hollow outer tube 221a through the fixing block 2212, and the driving screw 2213 is screwed to the fixing block 2212. The fixing block 2212 can pass through the top wire or the screw. The locking member is fixed in the outer tube 221a. The knob 2211 is located outside the first end of the outer tube 221a away from the first reel 2222, and the second end of the outer tube 221a is fixed to the mount 50. Thus, when the knob 2211 is screwed, the driving screw 2213 is screwed into the fixed block 2212 and moves axially along the outer tube 221a, so that the abutting member 2214 is pressed against the abutting portion 2222b under the driving of the driving screw 2213 to make the first turn. The wheel 2222 drives the connector 212 to rotate downwardly, pulling down the temporomandibular joint; or, by twisting the knob 2211 in reverse, to allow the connector 212 to rotate upward.

As shown in FIG. 5, the abutting portion 2222b is provided with a groove 2222c on one side of the abutting member 2214, and the end of the abutting member 2214 adjacent to the first rotating wheel 2222 is wedge-shaped, and the tip end of the wedge extends into the groove 2222c, and The wedge-shaped tip end region can reliably contact the groove wall of the groove 2222c, thereby preventing the abutting member 2214 from slipping off the abutting portion 2222b during the rotation of the first rotating member 2222 relative to the mounting seat 50, thereby affecting the use. . In addition, in the present embodiment, the first reel 2222 can be rotatably connected to the wheel base 2221 connected to the mounting seat 50 via a rotating shaft 2223 mounted on the central hole 2222d thereof, and the first rotating wheel 2222 is disposed opposite to the driving assembly 221 and The abutting portion 2214 abuts against the abutting portion 2222b of the first rotating wheel 2222 to press the abutting portion 2222b of the first rotating wheel 2222 by the driving screw 2213 to drive the abutting member 2214 when the knob 2211 of the driving unit 221 is screwed. In turn, the first rotating wheel 2222 drives the connecting member 212 to rotate downwardly around the mounting seat 50 to press the jaw joint through the pressing member 211 connected to the connecting member 212, thereby facilitating the engaging portion 10 to open the user's mouth. Traction of the temporomandibular joint.

Preferably, the abutment member 2214 is provided with a bore for receiving the end of the drive screw 2213 within which the drive screw 2213 can be rotated. Thus, when the drive screw 2213 is rotated to urge the abutment member 2214 to move axially, the abutment member 2214 does not have to rotate itself.

It should be noted that the connecting member 212 and the first rotating wheel 2222 can be assembled by detachably connecting, for example, a connecting shaft 213 is disposed on the first rotating wheel 2222, and the connecting shaft 213 is located at the first rotating wheel 2222. The outer peripheral wall and extending in the radial direction, the connecting member 212 is detachably coupled to the connecting shaft 213 to facilitate replacement of the connecting member 212. In this embodiment, the connecting member 212 may be a hollow tubular structure or a solid rod-like structure, and the solid rod-shaped structure is provided with an insertion hole at an end away from the mounting pressing member 211, so as to realize the connection of the connecting member 212 by means of The connecting shafts 213 on the first reel 2222 are detachably connected. In this way, the extension length of the connecting member 212 can be adjusted by adjusting the depth of the insertion, so that the pressing member 211 can pass through the temporomandibular joint when the rotation axis of the first rotating wheel 2222 is rotated, thereby achieving depression of the temporomandibular joint. . In the embodiment, the through hole 212a may be opened at the place where the connecting member 212 and the connecting shaft 213 are inserted, so that the locking member 213a such as a top wire or a screw passes through the through hole 212a to lock the adjusted position. It is avoided that the connecting member 212 is loosened when the jaw joint is pushed down by the pressing member 211 to affect the effect. In other embodiments, the connecting member 212 is a telescopic rod, and the telescopic rod is provided with a fastener for locking the length of the connecting member 212. The fastener may be a top wire or a bolt. 211 is adjusted to a suitable position and locked, and will not be repeated here.

As shown in FIG. 1 and FIG. 2, in some embodiments, the first mouthpiece piece 11 and the second mouthpiece piece 12 are rotatably connected by the rotating structure 60. Specifically, the first mouthpiece piece 11 is rotated. The structure 60 is rotatably coupled to the mount 50, and the second mouthpiece piece 12 is coupled to the mount 50. In addition, when the user uses the temporomandibular joint retractor, the user's upper and lower jaws bite on the first mouthpiece piece 11 and the second mouthpiece piece 12, respectively, in the process of closing or expanding the occlusion portion 10, the first bite The mouth piece 11 is rotatable relative to the second mouthpiece piece 12. Specifically, the first mouth piece piece 11 can be moved closer to or away from the second mouthpiece piece 12 and rotate at a certain angle so that the occlusal portion 10 and the mouth of the user are opened. The closing action is kept in harmony, so that it is convenient to open the user's mouth for the temporomandibular joint traction exercise to improve the range of motion of the user's mouth opening.

The rotating structure 60 includes two second rotating members, and the rotation of the two second rotating members can be implemented separately. Specifically, one second rotating member is coupled to one side of the first mouthpiece piece 11, and the other second rotating member is coupled to the other side of the first mouthpiece piece 11. The second mouthpiece piece 12 is connected to the mounting seat 50. Since the rotation of the two second rotating parts relative to the mounting seat 50 can be separately performed, the rotation of the mounting seat 50 opposite to the two second rotating parts can be controlled separately. Different spreading forces are formed on both sides of the first mouthpiece piece 11. It should be noted that the two second rotating members are largely coincident with respect to the axis of rotation of the mounting seat 50, that is, the two second rotating members are spaced apart in the direction of the axis of rotation of the large body to be placed in the first mouthpiece. Both sides of the sheet 11. In this way, it is ensured that when the first mouthpiece piece 11 is rotated relative to the second mouthpiece piece 12, the two sides have better coordination without causing the rotation structure 60 to close or expand when the occlusal part 10 is closed due to the inconsistent rotation axis. The range of activities is limited, affecting the effect of temporomandibular joint traction exercise.

It should be noted that the two sides of the first mouthpiece piece 11 can be respectively connected to the second rotating parts on both sides through the curved rod 11a. Specifically, the curved rod 11a is divided into a first curved rod and a second curved rod, and one side of the first mouthpiece piece 11 is connected to the second rotating member on one side by the first curved rod, and the other of the first mouthpiece piece 11 One side is connected to the second rotating member on the other side by the second curved rod. The two sides of the second mouthpiece piece 12 can also be connected to the mounting seat 50 through the connecting rod 12a. In some embodiments, the supporting rod 50a can also be disposed on the mounting seat 50, and the connecting rod 12a is mounted on the supporting rod 50a. It is fixed on the support rod 50a so that the second mouthpiece piece 12 and the mounting seat 50 have a suitable mounting distance, so that the first mouthpiece piece 11 and the second mouthpiece piece 12 are opposed to each other so that the occlusal part 10 can be wound around the second The rotation axis of the rotating member is engaged or opened, which is adapted to the closing and opening of the mouth of the user, thereby satisfying the needs of the temporomandibular joint traction exercise.

In some embodiments, the first adjusting handle 30 and the second adjusting handle 40 are respectively disposed in one-to-one correspondence with the two second rotating members, the first adjusting handle 30 is for elastically driving the rotation of one second rotating member, and the second adjusting The handle 40 is used for elastically driving the rotation of the other second rotating member, so that the first mouthpiece piece 11 can be opened relative to the second mouthpiece piece 12, and the first mouthpiece piece 11 can be moved closer to the second bit under the action of an external force. The direction of the mouth piece 12 is closed. Specifically, the first adjusting handle 30 and one of the second rotating members are disposed on the same side of the first mouthpiece piece 11. Correspondingly, the second adjusting handle 40 and the other second rotating piece are disposed on the first mouthpiece piece. The other side of 11. In this way, the second rotating member located on both sides of the first mouthpiece piece 11 can be adjusted by the first adjusting handle 30 and the second adjusting handle 40, respectively, so that the second rotating parts on both sides can be opened with different strengths. a mouthpiece piece 11, and when the user bites the first mouthpiece piece 11 and the second mouthpiece piece 12 to perform the temporomandibular joint traction exercise, the occlusal part 10 provides a suitable traction force to both sides of the user's mouth, thereby Sexual improvement improves the side of the disease and improves traction. It should be noted that “elastic drive” herein means that the driving process is implemented by the movement and/or deformation of the elastic element to cause the corresponding second rotating member to rotate in the first direction, when the second rotating member is driven. After being in position, the second rotating member can further elastically deform the elastic member to generate a second direction of rotation under the action of an external force (for example, a user's bite force), and the second direction is opposite to the first direction of rotation.

It should be noted that the first adjustment handle 30 and the second adjustment handle 40 can adopt the same configuration, so as to facilitate the uniform adjustment standard, and achieve precise adjustment of the expansion force on both sides of the occlusal portion 10, and adapt to the temporomandibular joint traction exercise. Need.

In some embodiments, the first mouthpiece piece 11 can be rotated relative to the curved bar 11a, and the second mouthpiece piece 12 can be rotated relative to the link 12a such that the occlusal portion 10 is more easily adapted to different people and different mouth shapes. In some preferred embodiments, the nip 10 is formed from a flexible material such as plastic or the like. In order to further enhance the degree of fit of the occlusal portion 10 to the oral cavity, the first mouthpiece piece 11 and the second mouthpiece piece 12 are provided with a plurality of through holes or grooves, so that the first mouthpiece piece 11 and the second mouthpiece piece 12 are provided. It is more prone to elastic deformation.

As shown in connection with FIG. 6, in some embodiments, the first adjustment handle 30 and the second adjustment handle 40 each include a jack 3, an elastic member, and an adjustment member. One end 3b of the jack 3 is offset from the axis of rotation of the second rotating member against the second rotating member, and the elastic member is used for abutting the jack 3 against the second rotating member to drive the second rotating member to rotate about its own axis of rotation. Further, the nip portion 10 is opened. The adjusting member is movable relative to the ejector pin 3 to abut the elastic member against the ejector pin 3 to adjust the urging force of the elastic member to disengage the occlusal portion 10 via the ejector pin 3.

Specifically, since the position at which the ejector rod 3 abuts against the second rotating member is offset from the rotation axis of the second rotating member, and the elastic member applies an elastic force to the ejector rod 3, the ejector rod 3 can drive the second rotating member relative to each other. The mount 50 is rotated to open the nip portion 10. In the present embodiment, since the ram 3 is elastically pressed against the second rotating member by the elastic member, that is, the temporomandibular joint retractor can drive the occlusal portion 10 to open the user's mouth by the elastic force of the elastic member. In the traction exercise on the temporomandibular joint, it can be understood that the greater the compression deformation of the elastic member, the greater the strength of the rotating member 52 to open the first mouthpiece piece 10. In addition, the elastic force provided by the elastic member has a better flexibility effect. Specifically, the user can close the occlusal portion 10 by closing, and then rotate the second rotating member relative to the mounting seat 50 in the opposite direction and pass through the top. The rod 3 presses the elastic member to prevent the user's mouth from being strongly stretched and held at a rigid opening angle to cause discomfort.

In the above embodiment, the adjusting member is movable relative to the jack 3, and the elastic member is abutted against the one end 3a of the jack 3 to adjust the supporting force of the elastic member to extend the engaging portion 10 via the jack 3. Specifically, when the adjusting member moves toward the jack 3, a pressing force is formed on the elastic member to force the elastic member to abut against the jack 3, and the jack 3 pushes the rotating member 52 to rotate in the opening direction with the first nozzle blade 11 Further, the occluding portion 10 is opened at a certain angle. Specifically, as the elastic member gradually moves toward the jack 3, the angle at which the engaging portion 10 is distracted will also gradually increase in the spanning range until it is limited to the maximum opening angle. It can be understood that no matter whether the occlusal portion 10 is expanded to the maximum opening angle, as the compression deformation of the elastic member increases, the elastic force that the user mouth needs to overcome to engage the nip portion 10 is also greater.

It can be understood that when the temporomandibular joint tractor is used for the traction exercise, the user's mouth bites on the occlusal portion 10, and the force acting on the occlusal portion 10 by the user's mouth interacts with the urging force of the occlusal portion 10. force. In the temporomandibular joint retractor of the present application, the force of the elastic member acting on the second rotating member via the ejector rod 3 is adjusted by the adjusting member, so that the occlusal portion 10 can be opened at different degrees to open the temporomandibular joint Traction exercise. It can be understood that the disengagement force on both sides of the occlusal portion 10 can be adaptively adjusted by the separate adjustment of the first adjustment handle 30 and the second adjustment handle 40 respectively, and the actual diseased side of the user is trained by the targeted traction. Or according to the needs of different users, adapt to improve traction.

As further shown in Figures 6 and 7, the first adjustment handle 30 and the second adjustment handle 40 each include a handle housing 4 that is coupled to the mount 50. The handle housing 4 is a hollow tubular housing. The adjusting member, the elastic member and the ejector rod 3 are sequentially disposed in the handle housing 4 along the axial direction of the handle housing 4, and the end portion of the top rod extending from the handle housing 4 is in contact with the corresponding second rotating wheel 62, and the top The point of attachment of the rod to the corresponding second wheel 62 is offset from the axis of rotation of the second wheel 62. It should be noted that the adjusting member can move along the axial direction of the handle housing 4, so that the elastic member can be abutted against the jack 3 so that the jack 3 moves axially and drives the second rotating member to rotate relative to the mounting seat 50 to open. The occlusal portion 10 causes the user's mouth to open to perform traction exercise on the temporomandibular joint.

In the above embodiment, the elastic member may be the spring 2, and the adjusting member may be the screw 1. One end of the spring 2 is sleeved on one end of the jack 3 away from the second rotating member, and the other end is abutted against the screw 1 through the pressing block 5. In this embodiment, the ejector pin 3 is formed with a limiting step against the spring 2, and the end of the pressing block 5 away from the spring 2 is formed with a limiting boss 5a extending in the radial direction, and the spring 2 is sleeved on the column of the pressing block 5. The shape portion is in contact with the limiting boss 5a, thereby restraining the spring 2 between the pressing block 5 and the jack 3. In the present embodiment, the end of the pressing block 5 facing the screw 1 is opened in the axial direction, and the screw 1 is preferably rotatably inserted into the limiting groove 5b. Thus, when the screw 1 is axially moved in the direction of the ram 3 by the rotation, the pressure block 5 can be axially moved at the same time without rotation, and the screw 1 can be prevented from slipping off the pressure block 5 when rotating relative to the handle housing 4, affecting use.

The screw 1 is inserted into the handle housing 4 and screwed to the handle housing 4. When the screw 1 is screwed, the screw 1 moves axially along the handle housing 4, and the plunger 3 can be driven by the pressing block 5 and the elastic member. Pressing the second rotating member. It should be noted that the screw 1 protrudes from the handle housing 4 and is away from the end of the elastic member. A knob 7 can be disposed to screw the screw 1 to rotate the screw 1 relative to the handle housing 4, thereby connecting the screw 1 along the threaded portion thereof. The axial movement of the handle housing 4. In other embodiments, the screwed connection of the screw 1 to the handle housing 4 can also be achieved by providing a connector having an internal thread such as a nut 6 in the handle housing 4, which will not be described again.

As shown in FIG. 6 and FIG. 7, in the above embodiment, the second rotating member and the first rotating member may have the same structure. The second rotating member includes a second rotating wheel 62, and the structure of the second rotating wheel 62 is the same as that of the first rotating wheel 2222. Specifically, the side wall of the second rotating wheel 62 has a cutting surface 62a parallel to the axial direction of the second rotating wheel 62, and an abutting portion is reserved on the side of the cutting surface 62a away from the ejector rod 3 (second a hook-shaped abutting portion 62b, the abutting portion 62b is in the shape of an arc hook, and the abutting portion 62b is opposed to the jack 3, and the abutting portion 62b preferably catches the end portion of the jack 3 so that the adjusting member passes through the elastic member When the driving ram 3 presses against the rotating member 52, the ram 3 reliably abuts against the abutting portion 62b, and the rotating member 52 is rotated relative to the mounting seat 50. Since the cutting surface 62a is provided on the side wall of the second reel 62, that is, the second reel 62 is partially cut away, a rotating structure 50 having a non-complete circular shape is formed, so that the ejector pin 3 does not need to be installed in the first The axial end face of the second runner 62 can be disposed at a position between the axial end faces of the second runner 62 to reduce the installation space, making the structure lighter and more convenient for use.

As shown in FIG. 8, in the above embodiment, the abutting portion 62b is provided with a groove 62c toward one side of the jack 3, and the end 3b of the jack 3 near the second wheel 62 is wedge-shaped, and the tip end of the wedge is pressed against In the groove 62c, the wedge-shaped tip end region can maintain a reliable contact with the groove wall of the groove 62c, thereby preventing the ram 3 from the abutting portion 62b during the rotation of the ram 13 driving the second rotator 62 relative to the mounting seat 50. Slip off and affect the use.

It should be noted that the second connection between the second reel 62 and the mounting seat 50 can be achieved by various means, for example, the second reel 62 is directly rotatably connected to the mounting seat 50 through the pin, due to the second mouthpiece The piece 12 is fixed on the mounting seat 50. When the second rotating wheel 62 rotates relative to the mounting seat 50, the first mouthpiece piece 11 connected to the second rotating wheel 62 can be moved relative to the second mouthpiece piece 12 to realize the occlusal part. 10 closed. In some embodiments, the second reel 62 can also be rotatably mounted to the mount 50 via the support base 61. For example, the second reel 62 can be rotatably disposed on the support base 61 by a pin structure. The support base 61 is fixed to the mount 50, and thus the second rotor 62 can be rotatably connected to the mount 50. In this embodiment, the second reel 62 is provided with a shaft hole 62d through which the pin shaft 63 passes, so that the pin 63 passing through the shaft hole 62d can rotationally connect the second reel 62 to the support base 61.

In another preferred embodiment, the structure of the runner and the linkage can be designed to perform the functions of the second rotor 62 and the wedge-shaped ram 3 in the above embodiment. For example, one end of the connecting rod is fixed to the ejector rod 3, and the other end is rotatably connected with the rotating wheel. In addition, the connecting point of the connecting rod and the rotating wheel is offset from the rotation axis of the rotating wheel, and further, the driving rod is relatively rotated at the ejector rod 3. When the wheel is in motion, the runner will rotate relative to the mounting seat 50 under the action of the connecting rod, and can also play the role of stretching the occlusal portion 10 to perform the temporomandibular joint. Of course, the first reel 2222 and the abutting member 2214 can also be used to drive the pair of connecting members 21, which will not be described again.

In some embodiments, the driving arm 621 may also be disposed at a position offset from the rotation axis thereof on the second reel 62. The driving arm 621 protrudes outward from the outer peripheral wall of the second reel, and the curved rod 11a is connected to the driving arm 621. In this way, the need for the second reel 62 to drive the first mouthpiece piece 11 via the curved rod 11a to rotate the first mouthpiece piece 11 about the rotation axis of the second reel 62 relative to the second mouthpiece piece 12 can be satisfied. In addition, the connecting rod 12a connecting the second mouthpiece piece 12 and the mounting seat 50 may also be curved so that the first adjusting handle 30 and the second adjusting handle 40 on both sides are disposed at an appropriate distance, thereby facilitating the operation. In addition, a stay 50a may be disposed on the mounting seat 50, one end of the connecting rod 12a is connected to the stay 50a, and the other end is connected to the second mouthpiece piece 12 to connect the first mouthpiece piece 11 and the second mouthpiece The piece 12 is reasonably disposed at a distance from the axis of rotation of the second reel 62, thereby ensuring that the occlusal portion 10 has a large opening extent to ensure that the occlusal portion 10 can fully open the user's mouth and adapt to the temporomandibular joint traction. The need for exercise.

As shown in FIG. 6 , in some embodiments, the support base 61 has a hollow cylindrical structure, and the support base 61 is provided with a swinging notch 61 a and a mounting notch 61 b to provide an active space for the driving arm 621 and the jack 3 . Thereby preventing interference with the support base 61. In addition, the driving arm 621 protrudes from the swinging notch 61a, and the range of the swinging angle of the driving arm 621 and the curved rod 11a can be restricted by the groove wall of the swinging notch 61a, thereby limiting the maximum opening angle of the first mouthpiece piece 11, and further The maximum opening angle of the nip 10 is limited. The jack 3 is inserted into the support base 61 through the mounting slot 61b to be coupled to the second runner 62. The support structure 61 of the tubular structure is similar to the shape of the second runner 62, so that the structure can be made more compact, and the foreign object can be prevented from sticking to the second runner 62 to affect the use effect; it should be noted that the installation is used for installation. The structure of the wheel base 2223 of the first reel 2222 can also adopt the structure of the support base 61, so that the first reel 2222 can also be rotatably assembled to the mounting seat 50, and the external object can be prevented from interfering with the first. The effect of the rotation effect of the runner 2222 will not be repeated here.

As shown in FIG. 6 and FIG. 7 , in some embodiments, the end of the handle housing 4 adjacent to the knob 7 is provided with a dial 8 having a scale, and the knob 7 is provided with a pointer or a mark so that the knob 7 is screwed relative to the screw 1 When the handle housing 4 is rotated, the rotation amplitude of the knob 7 can be conveniently viewed, and the adjustment of the strength of the expansion of the occlusal portion 10 can be measured. For example, a scale from 0 to 10 is indicated in the clockwise direction on the code wheel 8, indicating that there are 10 gear positions, and the screw 1 can be biased without applying force to the second rotor 62 to make the nip portion 10 in the natural occlusion state. The position is defined as 0, so that when the knob 7 is screwed to move the screw 1 along the handle housing 4 to gradually open the occlusion portion 10, the change in the stretching force can be measured by the gear position on the code wheel 8, and then The expansion force of the occlusal portion 10 is quantified so that the doctor can accurately adjust the stretching force on both sides of the occlusal portion 10 according to actual needs. In another embodiment, the scale mark can also be set at the opposite position at the same time, so that the design can not only facilitate the doctor to adjust the opening force of the occlusal portion 10, but also facilitate the user to adjust the stretching force.

Compared with the prior art, the present application has the following technical effects:

First, the temporomandibular joint retractor can press the temporomandibular joint through the pressing structure 21 in the temporomandibular joint pressing device 20, and the temporomandibular joint is pulled apart by the adjustment structure, thereby facilitating the user to open the mouth. The temporomandibular joint retractor makes it easier to open the user's mouth for the temporomandibular joint traction exercise, and avoids the problem of strong discomfort caused by the strong opening of the user's mouth.

Secondly, the temporomandibular joint retractor adjusts the disengaging strengths of the two sides of the occlusal portion by the first adjusting handle 30 and the second adjusting handle 40 respectively disposed on both sides of the occluding portion 10, so as to open the flank The strength adapts to the patient's occlusion exercise needs, and the patient is subjected to targeted traction exercise to improve the traction effect.

Thirdly, the temporomandibular joint retractor rotates the second reel 62 by the ram 3 to realize the rotation of the first mouthpiece 11 in a direction away from the second mouthpiece 12, which is in accordance with the human jaw. The normal movement of the joints.

Fourth, the temporomandibular joint tractor involves the visualization code wheel 8 on both sides to realize the quantification of the distracting force, which is convenient for operation and recording, and is convenient for the patient to use the retractor for a long time according to the condition or treatment. Differentiate the operation.

Fifth, the temporomandibular joint retractor provides the patient with the function of passively opening the mouth and actively closing the mouth. During the traction process, if the patient feels uncomfortable and difficult to adapt, the force can be bitten, and the angle of the opening will become smaller. The patient can actively adjust the training force according to his own adaptability.

The technical features of the above embodiments may be arbitrarily combined. For the sake of brevity of description, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, It is considered to be the range described in this specification.

The above embodiments are merely illustrative of several embodiments of the present application, and the description thereof is more specific and detailed, but is not to be construed as limiting the scope of the claims. It should be noted that a number of variations and modifications may be made by those skilled in the art without departing from the spirit and scope of the present application. Therefore, the scope of the invention should be determined by the appended claims.

Claims

A temporomandibular joint pressing device, comprising: a mounting seat and at least one pressing structure and at least one adjusting structure mounted on the mounting seat, the pressing structure comprising a pressing member and a connecting member, the pressing member passing The connecting member is connected to the adjusting structure, so that the connecting member drives the pressing member to move to the user's temporomandibular joint and push the temporomandibular joint downward under the action of the adjusting structure.
The temporomandibular joint pressing device according to claim 1, wherein

The adjustment structure includes a drive assembly and a rotating assembly;

The rotating assembly includes a first rotating member mounted on the mounting seat; the driving assembly is adapted to drive the first rotating member to rotate;

One end of the connecting member is connected to the first rotating member, and the other end is connected to the pressing member to drive the first rotating member to drive the connection when the driving assembly drives the first rotating member to rotate. The piece rotates downward to push the pressing member downward to push the jaw joint.
The temporomandibular joint pressing device according to claim 2, wherein the pressing member includes a pressing portion and an adjusting portion, the adjusting portion is screwed to the connecting member, and the pressing portion is provided at the adjusting portion Upper to press the temporomandibular joint with the movement of the adjustment portion relative to the connecting member.
The temporomandibular joint pressing device according to claim 3, wherein the adjusting portion is a screwing screw, and the pressing portion is an elastic ball, and the screwing screw is detachably coupled to the elastic ball.
The temporomandibular joint pressing device according to any one of claims 2 to 4, characterized in that

The first rotating member includes a first rotating wheel, a sidewall of the first rotating wheel has a first cutting surface, and a first hook-shaped surface is reserved on a side of the first cutting surface away from the driving component Connection

The drive assembly includes an axially movable abutment adapted to abut the first hook abutment.
The temporomandibular joint pressing device according to claim 5, wherein the mounting seat is provided with a wheel base, and the wheel base supports the first rotating wheel through a rotating shaft.
The temporomandibular joint pressing device according to claim 5, wherein the driving assembly comprises: an outer tube, a knob, a driving screw and the abutting member; the outer tube is fixedly connected with the mounting seat; The driving screw is screwed to the outer tube; and one end of the driving screw is connected to the knob, and the other end is connected to the abutting member; when the knob is screwed, the driving screw can be The abutting member presses the first hook-shaped abutting portion to cause the first rotating wheel to drive the connecting member to rotate.
The temporomandibular joint pressing device according to claim 5, wherein one end of the abutting member against the first hook-shaped abutting portion has a wedge shape.
The temporomandibular joint pressing device according to claim 5, wherein the outer peripheral wall of the first rotating wheel is provided with a radially extending connecting shaft, and the connecting member is detachably sleeved on the connecting shaft on.
A temporomandibular joint retractor comprising a occlusal portion and a temporomandibular joint pressing device according to any one of claims 1-9, wherein the occlusal portion comprises a first mouthpiece piece and a second mouthpiece piece The first mouthpiece piece is opposite to the second mouthpiece piece to conform to the mouth of the user.
The temporomandibular joint retractor according to claim 10, further comprising a first adjustment handle and a second adjustment handle; the first mouthpiece piece being coupled to the mount by a rotating structure, the a second mouthpiece piece is coupled to the mounting seat, and the first mouthpiece piece is movable toward or away from the second mouthpiece piece and is rotated at an angle to the first adjustment handle and the first The two adjusting handles are opened, and the first adjusting handle and the second adjusting handle are respectively used for adjusting the stretching force of the two sides of the engaging portion.
The temporomandibular joint retractor according to claim 11, wherein said rotating structure comprises two second rotating members; two of said second rotating members are arranged side by side along their rotational axes and respectively associated with said mount Rotating connection, and two of the second rotating members are respectively connected to two sides of the first mouthpiece piece; the second mouthpiece piece is connected with the mounting seat to be in two of the second When the rotating members are respectively rotated relative to the mounting seat, the two second rotating members rotate the first mouthpiece piece relative to the second mouthpiece piece.
The temporomandibular joint retractor according to claim 12, wherein the first adjustment handle and the second adjustment handle are respectively disposed corresponding to the two second rotation members; the first adjustment handle and The second adjusting handles each include a jack, an elastic member and an adjusting member; one end of the jack is offset from the rotating axis of the second rotating member on the second rotating member, and the elastic member is used for Abutting the ram against the second rotating member to drive the second rotating member to rotate relative to the mounting seat to open the occlusion portion; the adjusting member is movable relative to the ejector rod The elastic member abuts against the ejector pin to adjust the urging force of the elastic member to open the occlusal portion via the ejector pin.
The temporomandibular joint retractor according to claim 13, wherein said second rotating member comprises a second rotating wheel, one end of said plunger is offset from said elastic member, and the other end of said plunger is The second rotating wheel is rotatably coupled, and a connection of the ejector pin and the second rotating wheel is offset from an axis of rotation of the second rotating wheel.
The temporomandibular joint retractor according to claim 13 or 14, wherein the first adjustment handle and the second adjustment handle further comprise a handle housing coupled to the mount, the handle shell The body has a hollow tubular structure; the adjusting member, the elastic member and the ejector are sequentially disposed in the handle housing along the axial direction of the handle housing.
The temporomandibular joint retractor according to claim 15, wherein the adjusting member comprises a screw inserted into the handle housing and screwed to the handle housing to oppose the handle When the housing screws the screw, the screw moves in the axial direction of the handle housing to drive the jack to press the second rotating member through the elastic member.
The temporomandibular joint retractor according to claim 10, further comprising: a rotating structure, a first adjustment handle and a second adjustment handle;

Wherein the rotating structure comprises two second rotating members mounted on the mounting seat, the rotation axes of the two second rotating members are largely coincident;

The first mouthpiece piece and each of the second rotating pieces are respectively connected by a curved rod, and the second mouthpiece piece is connected with the mounting seat;

The first adjustment handle is for elastically driving the rotation of one of the second rotation members, and the second adjustment handle is for elastically driving the rotation of the other of the second rotation members, so that the first mouthpiece piece can The second mouthpiece piece is opened, and the first mouthpiece piece can be closed in a direction close to the second mouthpiece piece by an external force.
The temporomandibular joint retractor according to claim 17, wherein

Each of the second rotating members includes: a second rotating wheel, the second rotating wheel is supported by the mounting seat by a pin; each of the curved rods is connected with a corresponding second rotating wheel;

The first adjustment handle and the second adjustment handle each include: a tubular housing mounted to the mounting seat; an adjusting member, an elastic member and a ejector rod sequentially sleeved in the tubular housing; a piece is screwed to the tubular housing and a first end of the adjusting member projects out of the tubular housing; a second end of the jack extends from the tubular housing and corresponds to the second turn The wheel is connected, the connection point of the second end of the jack and the corresponding second wheel is offset from the rotation axis of the second wheel; the elastic member is located at the second end of the adjusting member Between the first ends of the ram.
The temporomandibular joint retractor according to claim 18, wherein the mounting seat is provided with two hollow supporting seats, and a second rotating wheel is mounted in one of the supporting seats through the pin; The housing of the support base is provided with a swinging notch and a mounting slot for limiting a range of rotation angles of the curved rod, and the top rod passes through the mounting slot and the second The runners are connected.
The temporomandibular joint retractor according to claim 19, wherein each of the second rotating wheels is respectively disposed with a driving arm protruding from an outer peripheral wall of the second rotating wheel, and the driving arm is swung from the swinging arm The slot extends and the drive arm is coupled to the crank.
The temporomandibular joint retractor according to claim 18, wherein the outer circumference of the second reel is provided with a second hook-shaped abutting portion, and the second end of the ram is abutted against the second Inside the hook-shaped abutment.
The temporomandibular joint retractor according to claim 21, wherein an outer circumference of the second reel is provided with a second cutting surface, and the second hook abutting portion is disposed at a distance of the second cutting surface One side of the ejector.
The temporomandibular joint retractor according to claim 21, wherein the second end of the ram is wedge-shaped.
The temporomandibular joint retractor according to claim 18, wherein the first end of the adjusting member is provided with a knob; the tubular housing is provided with a dial corresponding to one end of the adjusting member, and the knob is Set with a pointer or logo.
The temporomandibular joint retractor according to claim 18, wherein the elastic member is a spring, and a pressing block is disposed between the second end of the adjusting member and the spring; the pressing block is provided for A limiting groove for accommodating the end of the adjusting member, and the pressing block is provided with a cylindrical portion for arranging the spring.