CN109247962B - Hand-held temporomandibular joint retractor - Google Patents
Hand-held temporomandibular joint retractor Download PDFInfo
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- CN109247962B CN109247962B CN201810963115.9A CN201810963115A CN109247962B CN 109247962 B CN109247962 B CN 109247962B CN 201810963115 A CN201810963115 A CN 201810963115A CN 109247962 B CN109247962 B CN 109247962B
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- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/025—Joint distractors
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Abstract
The invention relates to the technical field of temporomandibular joint retraction, and discloses a handheld retractor for temporomandibular joint openings, which comprises a first retracting mechanism, wherein the first retracting mechanism consists of an upper jaw abutting sheet, a first connecting sheet and a first retracting handle which are integrally formed and sequentially connected, a second retracting mechanism consisting of a lower jaw abutting sheet, a second connecting sheet and a second retracting handle which are integrally formed and sequentially connected is arranged in a first opening of the first retracting mechanism, a fourth opening of the second retracting mechanism is movably sleeved with a connecting shaft, the left end surface of the second retracting mechanism penetrates through the second opening of the first retracting mechanism, the right end surface of the connecting shaft connected with the center of the right end surface of a first shaft base penetrates through a third opening of the first retracting mechanism and is connected with the center of the left end surface of a second shaft base, and a reset spring is arranged between the first retracting handle and the second retracting handle. The invention solves the problem that effective retraction of the maxillomandibular of the temporomandibular joint cannot be realized.
Description
Technical Field
The invention relates to the technical field of temporomandibular joint retraction, in particular to a handheld retractor for temporomandibular joint mouths.
Background
Temporomandibular arthritis, it is a syndrome of pain, movement disorder and other symptoms caused by functional disorder or structural damage of temporomandibular joint, the pain part can be in the joint area or around the joint, and can be accompanied by pressure pain of different weights, joint soreness or pain is especially obvious when chewing and opening mouth, the bounce appears when opening mouth, the sound can occur in different stages of mandibular movement, can be crisp single sound or cracked sound, the common movement disorder is the restriction of opening mouth, the deflection of lower jaw when opening mouth, the restriction of left and right side movements of lower jaw, etc. In addition, there may be associated with the symptoms of temporal pain, dizziness, tinnitus, etc., and the definitive diagnosis and treatment of these conditions usually requires effective retraction of the upper and lower jaws of the temporomandibular joint in the patient to be performed.
The invention provides a handheld retractor for temporomandibular joint mouths, which has the technical advantages of efficiently retracting temporomandibular joints, effectively protecting the inner wall of an oral cavity, effectively protecting lips, effectively retracting the upper jaw and the lower jaw of temporomandibular joints, and effectively stabilizing the retractor.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a handheld retractor for temporomandibular joint mouths, which has the advantages of efficiently retracting temporomandibular joints, effectively protecting the inner wall of an oral cavity, effectively protecting lips, effectively retracting the upper jaw and the lower jaw of temporomandibular joints, and effectively stabilizing the retractor, and solves the problem that the upper jaw and the lower jaw of temporomandibular joints can not be effectively retracted.
(II) technical scheme
In order to realize the purposes of efficiently retracting the temporomandibular joint, effectively protecting the inner wall of the oral cavity, effectively protecting the lips, effectively retracting the upper jaw and the lower jaw of the temporomandibular joint and effectively stabilizing the retractor, the invention provides the following technical scheme:
the handheld retractor for temporomandibular joint openings comprises a first retracting mechanism, the first retracting mechanism consists of an upper jaw abutting piece, a first connecting piece and a first retracting handle which are integrally formed and sequentially connected with each other, the top side of the first retracting mechanism is provided with an arc smooth convex surface, the bottom side of the first retracting mechanism is provided with an arc smooth concave surface, the free end of the upper jaw abutting piece is provided with the arc smooth convex surface, the free end of the upper jaw abutting piece is fixedly connected with the first end surface of the first connecting piece, the top side of the first retracting mechanism is provided with an arc smooth convex surface, the bottom side of the first retracting mechanism is provided with an arc smooth concave surface, the center of the second end of the first retracting mechanism on the two side surfaces of the top and the bottom is provided with a first opening, the second end of the first connecting piece, which is provided with a third opening communicated with the first opening, is fixedly connected with the connecting end surface of the first retracting handle, a tangent line of the The tangent line is arranged at an included angle of 25 degrees, and the tangent line at the center of the arc-shaped smooth convex surface at the top side of the first connecting sheet and the horizontal plane where the top side surface of the first retracting handle is positioned form an included angle of 100 degrees;
a second retracting mechanism which consists of a lower jaw abutting sheet, a second connecting sheet and a second retracting handle which are integrally formed and sequentially connected with each other is arranged in the first opening of the first retracting mechanism, the bottom side of the second retracting mechanism is provided with an arc smooth convex surface, the center of the connecting end surface of the mandible abutting sheet with an arc-shaped smooth concave surface on the top side and an arc-shaped smooth convex surface at the free end is fixedly connected with the second end surface of a second connecting sheet with an arc-shaped smooth convex surface on the bottom side and an arc-shaped smooth concave surface on the top side, the centers of the second ends on the left side surface and the right side surface are provided with fourth openings, the second end surface of the second connecting sheet is fixedly connected with the connecting end surface of a second retracting handle, the tangent line of the center of the arc-shaped smooth convex surface on the bottom side of the mandible sheet and the tangent line of the center of the arc-shaped smooth convex surface on the bottom side of the second connecting sheet form an included angle of 25 degrees, and;
the inner side wall of a fourth opening of the second retracting mechanism which is matched with the first retracting mechanism is movably sleeved with the outer side wall of the axial center of the connecting shaft, the left end face of the connecting shaft penetrates through the second opening of the first retracting mechanism and extends to the left side of the second opening, and the right end face of the connecting shaft which is fixedly connected with the center of the right end face of the first shaft seat penetrates through the third opening of the first retracting mechanism and extends to the right side of the third opening and is fixedly connected with the center of the left end face of the second shaft seat;
a return spring is installed between the center of the top side face of a first retracting handle of the first retracting mechanism and the center of the bottom side face of a second retracting handle of the second retracting mechanism, and the bottom end and the top end of the return spring are fixedly connected with the center of the top side face of the first retracting handle and the center of the bottom side face of the second retracting handle respectively.
Preferably, the upper jaw supporting piece of the first retracting mechanism is provided with a first silica gel sleeve which is arranged in a U shape, the outer side of the top end of the first silica gel sleeve is provided with an arc-shaped smooth convex surface, the outer side of the bottom end of the first silica gel sleeve is provided with an arc-shaped smooth concave surface, the outer side of the closed end of the first silica gel sleeve is provided with an arc-shaped smooth convex surface, the inner side of the bottom end of the first silica gel sleeve is provided with an arc-shaped smooth concave surface, the arc-shaped smooth concave surface and the inner side of the closed end of the first silica gel sleeve are respectively and fixedly connected with the arc-shaped smooth convex surface between the center of the;
the lower jaw supporting sheet of the second retracting mechanism is provided with a U-shaped groove, the bottom end of the lower jaw supporting sheet is provided with an arc smooth convex surface, the top end of the lower jaw supporting sheet is provided with an arc smooth concave surface, the closed end of the lower jaw supporting sheet is provided with a second silica gel sleeve, the arc smooth concave surface at the inner side of the bottom end of the second silica gel sleeve is provided with an arc smooth convex surface, the arc smooth convex surface at the inner side of the top end is provided with an arc smooth concave surface, the arc smooth concave surface at the inner side of the closed end is respectively fixedly connected with the arc smooth convex surface between the bottom side center and the free end of the lower jaw.
Preferably, the bottom side surface of the first retracting handle of the first retracting mechanism is uniformly distributed with first convex-concave grains consisting of convex parts and concave parts which are integrally formed and sequentially connected in a continuous and smooth manner, the cross section of the concave part of the first convex-concave grain is triangular, and the cross section of the convex part is isosceles trapezoid;
the top side surface of a second retracting handle of the second retracting mechanism is uniformly provided with second convex-concave grains which are integrally formed and sequentially connected with one another in a continuous and smooth manner and consist of convex parts and concave parts, the sections of the concave parts of the second convex-concave grains are triangular, and the sections of the convex parts are isosceles trapezoid.
Preferably, a first silica gel pad with a cross section formed by connecting two arcs and an arc-shaped smooth concave surface at the bottom side and an arc-shaped smooth convex surface at the top side is installed on the first connecting plate of the first retracting mechanism, and the arc-shaped smooth concave surface at the bottom side of the first silica gel pad is fixedly connected with the arc-shaped smooth convex surface at the center of the top side of the first connecting plate of the first retracting mechanism;
and a second silica gel pad with a section formed by connecting two arcs and an arc-shaped smooth concave surface at the top side and an arc-shaped smooth convex surface at the bottom side is arranged on a second connecting sheet of the second retracting mechanism, and the arc-shaped smooth concave surface at the top side of the second silica gel pad is fixedly connected with the arc-shaped smooth convex surface at the center of the bottom side of the second connecting sheet of the second retracting mechanism.
Preferably, the arc smooth concave surface at the bottom side of the first retracting handle of the first retracting mechanism is provided with a first anti-slip layer, the top side of the first anti-slip layer is provided with an arc smooth convex surface, the bottom side of the first anti-slip layer is provided with an arc smooth concave surface, and the arc smooth convex surface at the top side of the first anti-slip layer is fixedly connected with the arc smooth concave surface at the center of the bottom side of the first retracting handle of the first retracting mechanism;
the smooth concave surface of the arc on the top side of the second retracting handle of the second retracting mechanism is provided with a second anti-slip layer, the bottom side of the second anti-slip layer is provided with a smooth convex surface of the arc, the top side of the second anti-slip layer is provided with a smooth concave surface of the arc, and the smooth convex surface of the arc on the bottom side of the second anti-slip layer is fixedly connected with the smooth concave surface of the arc at the center of the top side of the second retracting.
Preferably, the internal thread of the threaded hole in the center of the top side surface of the first retracting handle of the first retracting mechanism is connected with the external thread on the external side wall of the axial bottom end of the support column through threads, and the external side wall of the axial top end of the support column is in friction connection with the internal side wall of the fixing hole in the center of the bottom side surface of the second retracting handle of the second retracting mechanism.
Preferably, the outer side wall of the axial center of the connecting shaft is uniformly provided with a concave ring with a radial section arranged in a ring shape, and the difference between the inner circle diameter and the outer circle diameter of the radial section of the concave ring is one fifth of the diameter of the radial section of the connecting shaft.
(III) advantageous effects
Compared with the prior art, the invention provides a handheld retractor for temporomandibular joint, which has the following beneficial effects:
1. the retractor for the mouth is movably sleeved with the outer side wall of the axial center of a connecting shaft through the inner side wall of a fourth opening of a second retracting mechanism which is matched with a first retracting mechanism, the left end face of the connecting shaft penetrates through a second opening of the first retracting mechanism, extends to the left side of the second opening and is fixedly connected with the center of the right end face of a first shaft seat, the right end face of the connecting shaft penetrates through a third opening of the first retracting mechanism, extends to the right side of a third opening and is fixedly connected with the center of the left end face of a second shaft seat, a reset spring is arranged between the center of the top side face of a first retracting handle of the first retracting mechanism and the center of the bottom side face of a second retracting handle of the second retracting mechanism, the reset spring can make the top side face of the first retracting handle and the bottom side face of the second retracting handle move oppositely by utilizing the self elastic action, the distance between the top side face of the first retracting handle and the bottom side face of the second retracting, according to the lever principle, the bottom side surface of the upper jaw abutting piece of the first retracting mechanism is gradually far away from the top side surface of the lower jaw abutting piece of the second retracting mechanism until the distance between the bottom side surface of the upper jaw abutting piece and the top side surface of the lower jaw abutting piece reaches the maximum, the upper jaw of the temporomandibular joint is abutted upwards by the arc-shaped smooth convex surface of the top side of the upper jaw abutting piece, and the lower jaw is abutted downwards by the arc-shaped smooth convex surface of the lower jaw abutting piece, so that the technical effect of efficiently retracting the temporomandibular joint is realized, and the technical problem that effective retracting cannot be realized is solved.
2. This oral retractor, it has the level and smooth convex surface of arc to be U type shape setting and the top outside to install on the upper jaw is supported at first retractor mechanism, the bottom outside has the level and smooth concave surface of arc, the blind end outside has the level and smooth convex surface of arc first silica gel cover, install on the lower jaw is supported at second retractor mechanism and is U type shape setting and the bottom outside has the level and smooth convex surface of arc, the top outside has the level and smooth concave surface of arc, the blind end outside has the level and smooth convex surface of arc second silica gel cover, the first silica gel cover that has the cushioning effect, the upper jaw mucosa and the lower jaw mucosa in the second silica gel cover can effectively protect the oral cavity, reduce the upper jaw and support, the lower jaw supports the upper jaw mucosa in the piece scratch cavity, the lower jaw mucosa, the technological effect of effectively protecting the oral.
3. This oral retractor, constitute and the bottom side has the level and smooth concave surface of arc by two circular arcs connection through installing the section on first connection piece at first retractor mechanism, the top side has the first silica gel pad of the level and smooth convex surface of arc, it connects to constitute and the top side has the level and smooth concave surface of arc by two circular arcs to install the section on the second connection piece of second retractor mechanism, the bottom side has the second silica gel pad of the level and smooth convex surface of arc, the first silica gel pad that has the cushioning effect, second silica gel pad can effectively protect upper lip and lower lip, reduce first connection piece, second connection piece scratch upper lip and lower lip, the technological effect of effectively protecting the lip has been realized.
4. This oral retractor, the internal thread of the screw hole through the top side center of the first handle of retracting through first retractor mechanism passes through threaded interconnection with the external screw thread on the lateral wall of the axial bottom of support column, the lateral wall on support column axial top and the inside wall frictional connection of the fixed orifices of the bottom side center of the second handle of retracting through second retractor mechanism, the bottom of support column is fixed through the screw thread realization with first handle of retracting, the top cover is put in the fixed orifices of the handle is retracted to the second, the support column can make the top side of first handle of retracting and the bottom side of second handle of retracting separate effectively, thereby make the bottom side of the upper jaw support piece of first retractor mechanism keep away from with the top side of the lower jaw support piece of second retractor mechanism, the technological effect of effectively retracting temporomandibular jaw joint.
5. This oral retractor, be the concave ring that the ring shape set up through evenly having seted up radial section on connecting axle axial direction's lateral wall, the difference of the inside and outside diameter of the radial section of concave ring is one fifth of the radial section diameter of connecting axle, the concave ring has increased the thick degree of making on the connecting axle lateral wall, the coefficient of friction between the inside wall of the fourth trompil of the second connection piece of second retractor and the connecting axle axial direction has been improved, the fourth trompil of second retractor on the connecting axle rotation rate has been reduced, the technological effect of effective firm retractor has been realized.
Drawings
FIG. 1 is a schematic view of a hand-held temporomandibular joint oral retractor of the present invention;
FIG. 2 is a schematic view of a first retraction mechanism of the present invention;
FIG. 3 is a schematic structural view of a second retraction mechanism of the present invention;
FIG. 4 is a schematic structural view of a first embodiment of the connecting shaft of the present invention;
FIG. 5 is a left side view of a second embodiment of a handheld temporomandibular joint oral retractor of the invention;
FIG. 6 is a left side view of a third embodiment of a hand-held temporomandibular joint oral retractor of the invention;
fig. 7 is a schematic structural view of a first retracting mechanism, a second retracting mechanism and a supporting column according to the present invention;
fig. 8 is a schematic structural view of a second embodiment of the connecting shaft of the present invention.
The following are marked in the figure: 1-a first retracting mechanism, 101-a first opening, 102-a second opening, 103-a third opening, 104-a first silica gel sleeve, 105-a first convex-concave grain, 106-a first silica gel pad, 107-a first anti-skid layer, 108-a threaded hole;
2-a second retracting mechanism, 201-a fourth opening, 202-a second silica gel sleeve, 203-a second convex-concave grain, 204-a second silica gel pad, 205-a second anti-slip layer and 206-a fixing hole;
3-connecting shaft, 301-first shaft seat, 302-second shaft seat and 303-concave ring;
4-a return spring and 5-a support column.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the hand-held temporomandibular joint opening retractor comprises a first retracting mechanism 1, wherein the first retracting mechanism 1 comprises an upper jaw abutting sheet, a first connecting sheet and a first retracting handle which are integrally formed and sequentially connected with each other, the center of a connecting end surface of the upper jaw abutting sheet with an arc-shaped smooth convex surface on the top side, an arc-shaped smooth concave surface on the bottom side and an arc-shaped smooth convex surface at the free end is fixedly connected with a first end surface of the first connecting sheet with the arc-shaped smooth convex surface on the top side and the arc-shaped smooth concave surface on the bottom side, as shown in fig. 2, a first opening 101 is arranged at the center of a second end on two side surfaces of the top and the bottom, a second opening 102 mutually communicated with the first opening 101 is arranged at the second end on the first connecting sheet with a third opening 103 mutually communicated with the first opening 101, and the second end on the right side surface of the first connecting sheet is fixedly connected with the connecting end surface, the tangent line of the center of the arc-shaped smooth convex surface at the top side of the maxilla piece and the tangent line of the center of the arc-shaped smooth convex surface at the top side of the first connecting piece form an included angle of 25 degrees, and the tangent line of the center of the arc-shaped smooth convex surface at the top side of the first connecting piece and the horizontal plane where the top side of the first retracting handle is located form an included angle of 100 degrees;
a second retractor mechanism 2 consisting of a mandible abutting sheet, a second connecting sheet and a second retractor handle which are integrally formed and sequentially connected with each other is arranged in the first opening hole 101 of the first retractor mechanism 1, the center of the connecting end surface of the mandible abutting sheet with an arc-shaped smooth convex surface at the bottom side, an arc-shaped smooth concave surface at the top side and an arc-shaped smooth convex surface at the free end is fixedly connected with the second end surface of the second connecting sheet with an arc-shaped smooth convex surface at the bottom side and an arc-shaped smooth concave surface at the top side, as shown in fig. 3, the second end surface of the second connecting piece provided with the fourth opening 201 at the center of the second end on the left and right side surfaces is fixedly connected with the connecting end surface of the second retracting handle, the tangent line of the center of the arc-shaped smooth convex surface at the bottom side of the lower jaw piece and the tangent line of the center of the arc-shaped smooth convex surface at the bottom side of the second connecting piece form an included angle of 25 degrees, and the tangent line of the center of the arc-shaped smooth convex surface at the bottom side of the second connecting piece and the horizontal plane where the bottom side surface;
the inner side wall of the fourth opening 201 of the second retracting mechanism 2, which is matched with the first retracting mechanism 1, is movably sleeved with the outer side wall of the axial center of the connecting shaft 3, as shown in fig. 4, the left end surface of the connecting shaft 3, which penetrates through the second opening 102 of the first retracting mechanism 1, extends to the left side of the second opening 102, is fixedly connected with the center of the right end surface of the first shaft base 301, penetrates through the third opening 103 of the first retracting mechanism 1, extends to the right side of the third opening 103, and is fixedly connected with the center of the left end surface of the second shaft base 302;
a return spring 4 is arranged between the center of the top side surface of a first retracting handle of the first retracting mechanism 1 and the center of the bottom side surface of a second retracting handle of the second retracting mechanism 2, and the bottom end and the top end of the return spring 4 are fixedly connected with the center of the top side surface of the first retracting handle and the center of the bottom side surface of the second retracting handle respectively.
Preferably, as shown in fig. 5, the upper jaw supporting piece of the first retracting mechanism 1 is provided with a first silica gel sleeve 104 which is arranged in a U-shape, and has an arc-shaped smooth convex surface on the outer side of the top end, an arc-shaped smooth concave surface on the outer side of the bottom end, and an arc-shaped smooth convex surface on the outer side of the closed end, the arc-shaped smooth concave surface on the inner side of the top end, the arc-shaped smooth convex surface on the inner side of the bottom end, and the arc-shaped smooth concave surface on the inner side of the closed end of the first silica gel sleeve 104 are fixedly connected with the arc-shaped smooth convex surface between the center of the top side and the free end of the upper jaw supporting piece;
install on the lower jaw of second retractor mechanism 2 supports the piece and be the setting of U type shape and the bottom outside has the level and smooth convex surface of arc, the top outside has the level and smooth concave surface of arc, the closed end outside has the level and smooth convex surface of second silica gel cover 202 of arc, the level and smooth concave surface of arc of second silica gel cover 202 bottom inboard, the level and smooth convex surface of arc of top inboard, the level and smooth concave surface of arc respectively with the level and smooth convex surface of arc between the bottom side center of the lower jaw support piece of second retractor mechanism 2 and the free end, the level and smooth concave surface of arc between top side center and the free end, the level and smooth convex surface fixed connection of arc of.
Preferably, the bottom side surface of the first retracting handle of the first retracting mechanism 1 is uniformly distributed with first convex-concave patterns 105 consisting of convex parts and concave parts which are integrally formed and sequentially connected in a continuous and smooth manner, the cross section of the concave part of the first convex-concave pattern 105 is triangular, and the cross section of the convex part is isosceles trapezoid;
the top side surface of the second retracting handle of the second retracting mechanism 2 is evenly distributed with a second convex-concave grain 203 which is formed by a convex part and a concave part which are integrally formed and are sequentially, continuously and smoothly connected, the section of the concave part of the second convex-concave grain 203 is triangular, and the section of the convex part is isosceles trapezoid.
Preferably, as shown in fig. 6, a first silicone pad 106 whose cross section is formed by connecting two arcs and whose bottom side has an arc-shaped smooth concave surface and top side has an arc-shaped smooth convex surface is mounted on the first connecting plate of the first retracting mechanism 1, and the arc-shaped smooth concave surface at the bottom side of the first silicone pad 106 is fixedly connected with the arc-shaped smooth convex surface at the center of the top side of the first connecting plate of the first retracting mechanism 1;
a second silica gel pad 204 with a section formed by connecting two arcs and an arc-shaped smooth concave surface at the top side and an arc-shaped smooth convex surface at the bottom side is arranged on a second connecting sheet of the second retracting mechanism 2, and the arc-shaped smooth concave surface at the top side of the second silica gel pad 204 is fixedly connected with the arc-shaped smooth convex surface at the center of the bottom side of the second connecting sheet of the second retracting mechanism 2.
Preferably, a first anti-slip layer 107 with an arc smooth convex surface on the top side and an arc smooth concave surface on the bottom side is installed on the arc smooth concave surface on the bottom side of the first retracting handle of the first retracting mechanism 1, and the arc smooth convex surface on the top side of the first anti-slip layer 107 is fixedly connected with the arc smooth concave surface in the center of the bottom side of the first retracting handle of the first retracting mechanism 1;
the second anti-slip layer 205 with an arc-shaped smooth convex surface at the bottom side and an arc-shaped smooth concave surface at the top side is installed on the arc-shaped smooth concave surface at the top side of the second retracting handle of the second retracting mechanism 2, and the arc-shaped smooth convex surface at the bottom side of the second anti-slip layer 205 is fixedly connected with the arc-shaped smooth concave surface at the center of the top side of the second retracting handle of the second retracting mechanism 2.
Preferably, as shown in fig. 7, the internal thread of the threaded hole 108 at the center of the top side of the first retracting handle of the first retracting mechanism 1 is connected with the external thread on the external sidewall of the axial bottom end of the supporting column 5 through a thread, and the external sidewall of the axial top end of the supporting column 5 is frictionally connected with the internal sidewall of the fixing hole 206 at the center of the bottom side of the second retracting handle of the second retracting mechanism 2.
Preferably, as shown in fig. 8, the outer side wall of the axial center of the connecting shaft 3 is uniformly provided with a concave ring 303 with a radial section in a circular ring shape, and the difference between the inner and outer diameters of the radial section of the concave ring 303 is one fifth of the diameter of the radial section of the connecting shaft 3.
When the device works, a user holds the bottom side surface of the first retracting handle of the first retracting mechanism 1 and the top side surface of the second retracting handle of the second retracting mechanism 2 with one hand, so that the top side surface of the first retracting handle of the first retracting mechanism 1 and the bottom side surface of the second retracting handle of the second retracting mechanism 2 move oppositely, the distance between the top side surface of the first retracting handle and the bottom side surface of the second retracting handle is gradually reduced, according to the lever principle, the bottom side surface of the upper jaw abutting sheet of the first retracting mechanism 1 and the top side surface of the lower jaw abutting sheet of the second retracting mechanism 2 gradually approach, when the distance between the bottom side surface of the upper jaw abutting sheet and the top side surface of the lower jaw abutting sheet reaches the minimum, the upper jaw abutting sheet of the first retracting mechanism 1 and the lower jaw abutting sheet of the second retracting mechanism 2 are inserted into a human body, so that the arc-shaped convex surfaces of the upper jaw abutting sheet in the oral cavity abut against the upper jaw in the oral cavity and the arc-shaped convex surfaces of the oral, and then slowly releasing the pressure applied to the bottom side surface of the first retracting handle and the top side surface of the second retracting handle, under the elastic action of a return spring 4, moving the top side surface of the first retracting handle and the bottom side surface of the second retracting handle in a back-to-back manner, gradually increasing the distance between the top side surface of the first retracting handle and the bottom side surface of the second retracting handle, gradually separating the bottom side surface of the upper jaw resisting sheet of the first retracting mechanism 1 and the top side surface of the lower jaw resisting sheet of the second retracting mechanism 2 according to a lever principle until the distance between the bottom side surface of the upper jaw resisting sheet and the top side surface of the lower jaw resisting sheet reaches the maximum, abutting the upper jaw of the temporomandibular joint upwards by the arc-shaped smooth convex surface at the top side of the upper jaw resisting sheet, abutting the lower jaw by the arc-shaped smooth convex surface of the lower jaw resisting sheet.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. Hand-held type temporomandibular joint retractor for mouth includes first retractor mechanism (1), its characterized in that: the first retracting mechanism (1) consists of an upper jaw abutting sheet, a first connecting sheet and a first retracting handle which are integrally formed and connected with each other in sequence, the center of the connecting end surface of the upper jaw abutting sheet with an arc smooth convex surface on the top side, an arc smooth concave surface on the bottom side and an arc smooth convex surface at the free end is fixedly connected with the first end surface of the first connecting sheet with an arc smooth convex surface on the top side and an arc smooth concave surface on the bottom side, the center of the second end on the two side surfaces of the top and the bottom of the first connecting sheet is provided with a first opening hole (101), the second end on the left side surface of the first connecting sheet is provided with a second opening hole (102) which is communicated with the first opening hole (101), the second end on the right side surface of the first connecting sheet is provided with a third opening hole (103) which is communicated with the first opening hole (101), and the second, the tangent line of the center of the arc-shaped smooth convex surface at the top side of the maxilla piece and the tangent line of the center of the arc-shaped smooth convex surface at the top side of the first connecting piece form an included angle of 25 degrees, and the tangent line of the center of the arc-shaped smooth convex surface at the top side of the first connecting piece and the horizontal plane where the top side of the first retracting handle is located form an included angle of 100 degrees;
a second retracting mechanism (2) which consists of a lower jaw abutting sheet, a second connecting sheet and a second retracting handle which are integrally formed and sequentially connected with each other is arranged in a first opening (101) of the first retracting mechanism (1), the center of the connecting end surface of the mandible abutting sheet with the arc-shaped smooth convex surface at the bottom side, the arc-shaped smooth concave surface at the top side, the arc-shaped smooth convex surface at the free end and the second end surface of the second connecting sheet with the arc-shaped smooth convex surface at the bottom side are fixedly connected, the second end surface of the second connecting sheet with the fourth opening (201) at the center of the second end on the left side surface and the right side surface is fixedly connected with the connecting end surface of the second retracting handle, the tangent line of the arc-shaped smooth convex surface center at the bottom side of the mandible and the tangent line of the arc-shaped smooth convex surface center at the bottom side of the second connecting sheet form an included angle of 25 degrees, and the tangent line of the arc-shaped smooth convex surface center;
the inner side wall of a fourth opening (201) of a second retractor mechanism (2) which is matched with the first retractor mechanism (1) is movably sleeved with the outer side wall of the axial center of the connecting shaft (3), the left end face of the fourth opening penetrates through a second opening (102) of the first retractor mechanism (1), extends to the left side of the second opening (102), and the right end face of the connecting shaft (3) which is fixedly connected with the center of the right end face of the first shaft base (301) penetrates through a third opening (103) of the first retractor mechanism (1), extends to the right side of the third opening (103), and is fixedly connected with the center of the left end face of the second shaft base (302);
a reset spring (4) is installed between the center of the top side face of a first retracting handle of the first retracting mechanism (1) and the center of the bottom side face of a second retracting handle of the second retracting mechanism (2), and the bottom end and the top end of the reset spring (4) are fixedly connected with the center of the top side face of the first retracting handle and the center of the bottom side face of the second retracting handle respectively.
2. The hand-held temporomandibular joint oral retractor of claim 1, wherein: a first silica gel sleeve (104) which is arranged in a U shape, provided with an arc smooth convex surface on the outer side of the top end, an arc smooth concave surface on the outer side of the bottom end and an arc smooth convex surface on the outer side of the closed end is arranged on the upper jaw abutting piece of the first retracting mechanism (1), the arc smooth concave surface on the inner side of the top end, the arc smooth convex surface on the inner side of the bottom end and the arc smooth concave surface on the inner side of the closed end of the first silica gel sleeve (104) are fixedly connected with the arc smooth convex surface between the center of the top side and the free end of the upper jaw abutting piece of the first retracting mechanism (1), the arc smooth concave surface between the center of the bottom side;
the lower jaw of second retractor mechanism (2) supports and installs on the piece and is the setting of U type shape and the bottom outside has the level and smooth convex surface of arc, the top outside has the level and smooth concave surface of arc, the blind end outside has second silica gel cover (202) of the level and smooth convex surface of arc, the level and smooth concave surface of arc of second silica gel cover (202) bottom inboard, the level and smooth convex surface of arc of top inboard, the level and smooth concave surface of arc inboard of blind end respectively with the level and smooth convex surface of arc between the bottom side center of the lower jaw support piece of second retractor mechanism (2) and the free end, the level and smooth concave surface of arc between top side center and the free end, the level and smooth.
3. The hand-held temporomandibular joint oral retractor of claim 1, wherein: the bottom side surface of a first retracting handle of the first retracting mechanism (1) is uniformly distributed with a first convex-concave pattern (105) consisting of a convex part and a concave part which are integrally formed and sequentially connected in a continuous and smooth manner, the section of the concave part of the first convex-concave pattern (105) is triangular, and the section of the convex part is isosceles trapezoid;
the top side surface of a second retracting handle of the second retracting mechanism (2) is uniformly distributed with second convex-concave grains (203) consisting of convex parts and concave parts which are integrally formed and sequentially connected in a continuous and smooth manner, the section of the concave part of the second convex-concave grains (203) is triangular, and the section of the convex part is isosceles trapezoid.
4. The hand-held temporomandibular joint oral retractor of claim 1, wherein: a first silica gel pad (106) with a cross section formed by connecting two arcs and an arc-shaped smooth concave surface at the bottom side and an arc-shaped smooth convex surface at the top side is arranged on the first connecting sheet of the first retracting mechanism (1), and the arc-shaped smooth concave surface at the bottom side of the first silica gel pad (106) is fixedly connected with the arc-shaped smooth convex surface at the center of the top side of the first connecting sheet of the first retracting mechanism (1);
a second silica gel pad (204) with a section formed by connecting two arcs and an arc-shaped smooth concave surface on the top side and an arc-shaped smooth convex surface on the bottom side is arranged on a second connecting sheet of the second retracting mechanism (2), and the arc-shaped smooth concave surface on the top side of the second silica gel pad (204) is fixedly connected with the arc-shaped smooth convex surface at the center of the bottom side of the second connecting sheet of the second retracting mechanism (2).
5. The hand-held temporomandibular joint oral retractor of claim 1, wherein: the first anti-skid layer (107) with an arc-shaped smooth convex surface on the top side and an arc-shaped smooth concave surface on the bottom side is arranged on the arc-shaped smooth concave surface on the bottom side of the first retracting handle of the first retracting mechanism (1), and the arc-shaped smooth convex surface on the top side of the first anti-skid layer (107) is fixedly connected with the arc-shaped smooth concave surface at the center of the bottom side of the first retracting handle of the first retracting mechanism (1);
and a second anti-skid layer (205) with an arc-shaped smooth convex surface at the bottom side and an arc-shaped smooth concave surface at the top side is arranged on the arc-shaped smooth concave surface at the top side of the second retracting handle of the second retracting mechanism (2), and the arc-shaped smooth convex surface at the bottom side of the second anti-skid layer (205) is fixedly connected with the arc-shaped smooth concave surface at the center of the top side of the second retracting handle of the second retracting mechanism (2).
6. The hand-held temporomandibular joint oral retractor of claim 1, wherein: the internal thread of a threaded hole (108) in the center of the top side face of a first retracting handle of the first retracting mechanism (1) is connected with the external thread on the outer side wall of the axial bottom end of the support column (5) through threads, and the outer side wall of the axial top end of the support column (5) is in friction connection with the inner side wall of a fixing hole (206) in the center of the bottom side face of a second retracting handle of the second retracting mechanism (2).
7. The hand-held temporomandibular joint oral retractor of claim 1, wherein: the outer side wall of the axial center of the connecting shaft (3) is uniformly provided with a concave ring (303) with a radial section in a ring shape, and the difference between the diameters of the inner circle and the outer circle of the radial section of the concave ring (303) is one fifth of the diameter of the radial section of the connecting shaft (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810963115.9A CN109247962B (en) | 2018-08-22 | 2018-08-22 | Hand-held temporomandibular joint retractor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810963115.9A CN109247962B (en) | 2018-08-22 | 2018-08-22 | Hand-held temporomandibular joint retractor |
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| CN109247962A CN109247962A (en) | 2019-01-22 |
| CN109247962B true CN109247962B (en) | 2021-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810963115.9A Active CN109247962B (en) | 2018-08-22 | 2018-08-22 | Hand-held temporomandibular joint retractor |
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| US5183057A (en) * | 1991-07-30 | 1993-02-02 | Syrop Steven B | Fluid motion device (FMD) for exercising the temporomandibular joint |
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| CN201727691U (en) * | 2010-08-04 | 2011-02-02 | 高全文 | Temporomandibular joint opening tractor |
| WO2016135890A1 (en) * | 2015-02-25 | 2016-09-01 | オージー技研株式会社 | Jaw vibrating and traction treatment device |
| CN107970023A (en) * | 2017-11-09 | 2018-05-01 | 代洪波 | Mouth prop with defencive function |
| CN108175457A (en) * | 2017-11-08 | 2018-06-19 | 南京畅丰生物科技有限公司 | Retractor in temporomandibular joint mouth |
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2018
- 2018-08-22 CN CN201810963115.9A patent/CN109247962B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5183057A (en) * | 1991-07-30 | 1993-02-02 | Syrop Steven B | Fluid motion device (FMD) for exercising the temporomandibular joint |
| CN101862214A (en) * | 2010-05-26 | 2010-10-20 | 张益� | Temporal-mandibular joint opening pliers |
| CN201727691U (en) * | 2010-08-04 | 2011-02-02 | 高全文 | Temporomandibular joint opening tractor |
| WO2016135890A1 (en) * | 2015-02-25 | 2016-09-01 | オージー技研株式会社 | Jaw vibrating and traction treatment device |
| CN108175457A (en) * | 2017-11-08 | 2018-06-19 | 南京畅丰生物科技有限公司 | Retractor in temporomandibular joint mouth |
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| CN109247962A (en) | 2019-01-22 |
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Effective date of registration: 20201211 Address after: 450000 No. 1 Cooperative Road, Zhongyuan District, Zhengzhou City, Henan Province Applicant after: ZHENGZHOU CENTRAL Hospital Address before: 515136 maker base, No.21, East 11th lane, Shuangqi Qitou Xinzhai, Tongmeng Town, Chaoyang District, Shantou City, Guangdong Province Applicant before: Li Chanshan |
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