Novel universal opening angle spreader

Abstract

The utility model discloses a novel universal opening angle spreader which comprises a guide rail and an adjusting part which are in sliding fit with each other, a first spreading frame is arranged at the end, away from the adjusting part, of the guide rail, a second spreading frame is arranged on the adjusting part, the lower end of the first spreading frame is connected with a first drag hook piece, and the lower end of the second spreading frame is connected with a second drag hook piece. The first distraction frame and the first drag hook piece are movably connected through a universal connecting assembly, the second distraction frame and the second drag hook piece are movably connected through a universal connecting assembly, so that the first drag hook piece and the second drag hook piece are driven by the universal connecting assemblies to achieve multi-angle adjustment, and at least one end of the guide rail is provided with a handle. An adjustable fixing mechanism is introduced, the guide rail and the adjusting part are matched for distance adjustment, the universal connecting assembly drives the drag hook piece to conduct multi-angle adjustment, a doctor can adjust the position and tension of the drag hook according to the oral cavity structure of a patient and the operation requirement, in addition, the illumination function is further integrated, a better operation view is provided for the doctor, and the operation efficiency is improved. And the use experience of the user can be better improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to oral cavity medical instrument technical field, especially a kind of novel universal mouth corner spreader. BACKGROUND

[0002] At present, in order to provide clear surgical field in oral cavity medical operation, mouth corner drag hook is often used to pull open the mouth corner of patient, and the traditional mouth corner drag hook is mostly simple metal or plastic product, which is physically fixed on the mouth corner of patient to keep the mouth open. Although these tools meet the basic needs of surgery to some extent, they have some obvious deficiencies in design and function.

[0003] The existing mouth corner drag hook for oral cavity medical operation usually has the following problems: 1. The material and design of the traditional mouth corner drag hook often ignore the comfort of the patient. During the long operation process, the hard material may cause compression and damage to the patient's oral tissue, causing discomfort or even pain. 2. The fixing method of the existing drag hook is primitive, which may shift during the operation process, affecting the stability and accuracy of the operation. 3. Some drag hooks lack adjustment mechanism and are difficult to adapt to the changes of different patient's oral size and operation requirements. In summary, the traditional mouth corner drag hook cannot fully meet the clinical needs due to one or more of the above design deficiencies, thereby affecting the overall quality of oral cavity medical operation.

[0004] Therefore, in view of the limitations of the prior art, a new type of universal mouth corner spreader is needed to improve the comfort of the patient, enhance the stability during the operation process, and provide more flexible adjustment function to solve the above problems. SUMMARY

[0005] To solve the above technical problems, the present application discloses a new type of universal mouth corner spreader, which comprises a guide rail and an adjusting part that slide with each other, the guide rail is provided with a first spreader at one end away from the adjusting part, and the adjusting part is provided with a second spreader;

[0006] The first spreader is connected to a first drag hook at its lower end, and the second spreader is connected to a second drag hook at its lower end. The first spreader and the first drag hook, and the second spreader and the second drag hook are connected by a universal connecting assembly, so that the first drag hook and the second drag hook can be adjusted at multiple angles under the driving of the universal connecting assembly.

[0007] At least one end of the guide rail is provided with a handle.

[0008] Further, the adjusting part comprises an adjusting part, a stopper and a moving arm.

[0009] The adjusting member is arranged to drive the moving arm to displace along the guide rail by rotating, the second distraction frame is arranged on the moving arm, and the first distraction frame and the second distraction frame are arranged to increase or decrease the distance under the rotation of the adjusting member, so that the distance between the first hook member and the second hook member is adjusted.

[0010] The stopper is used for limiting and fixing the adjusting part.

[0011] Further, the guide rail is a tooth-shaped rail.

[0012] One end of the adjusting member is provided with a gear meshing with the tooth-shaped rail, and the other end is provided with an adjusting handle capable of driving the gear to rotate, and the adjusting member can displace along the guide rail under the cooperation of the moving arm and the stopper.

[0013] Further, the gear is arranged as a circular external gear.

[0014] Further, the universal connecting assembly comprises a spherical connecting rod, a spherical bushing and a locking member.

[0015] One end of the spherical connecting rod is fixed to the first distraction frame or the second distraction frame, and the other end is movably installed in the spherical bushing, when the angle adjustment of the first hook member or the second hook member is completed, the locking member cooperates with the spherical bushing to abut against the spherical end of the spherical connecting rod and is locked.

[0016] Further, one end of the locking member is in the form of a hand wheel, and the other end is in the form of a bolt and penetrates from the side wall of the spherical bushing to abut against the spherical end of the spherical connecting rod.

[0017] An open slot is arranged on the side wall of the spherical bushing, and the connecting rod end of the spherical connecting rod can displace along the open slot guided by the spherical end of the spherical connecting rod; a tapered chute is arranged on the upper end of the spherical bushing, and the connecting rod end of the spherical connecting rod can be angle-adjusted in the tapered chute.

[0018] Further, the first hook member and the second hook member are both provided with a pulling piece.

[0019] Further, the pulling piece is arranged in the form of a semicircular arc conforming to the curve of the soft tissue in the oral cavity, and a chamfer is arranged at the edge of the pulling piece.

[0020] Further, an anti-skid groove is arranged on the handle.

[0021] Further, the illumination device is arranged on the guide rail between the first distraction frame and the second distraction frame.

[0022] The present application provides a new universal oral corner distraction device, which at least brings the following beneficial effects:

[0023] The application can adjust the position and tension of the hook according to the oral structure of the patient and the operation demand of the doctor by introducing an adjustable fixing mechanism, cooperating the distance adjustment of the guide rail and the adjusting part, and driving the multi-angle adjustment of the hook piece by the universal connecting assembly. In addition, the application also integrates the lighting function to provide a better operation field for the doctor, which can better improve the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions and advantages of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0025] Figure 1 The application relates to a three-dimensional schematic view of a universal mouth corner spreader.

[0026] Figure 2 The application relates to a sectional view of an adjusting part and a universal connecting assembly.

[0027] Figure 3 The application relates to a front view of an adjusting part.

[0028] Figure 4 The application relates to a front view of a universal mouth corner spreader.

[0029] Figure 5 The application relates to a rear view of a universal mouth corner spreader.

[0030] Figure 6 The application relates to a left view of a universal mouth corner spreader.

[0031] Figure 7 The application relates to a right view of a universal mouth corner spreader.

[0032] Figure 8 The application relates to a top view of a universal mouth corner spreader.

[0033] In the figure: 1 - adjusting part; 11 - second spreader; 12 - second hook piece; 13 - adjusting part; 131 - adjusting handle; 132 - gear / circular external gear; 14 - stopper; 15 - moving arm;

[0034] 2 - guide rail / toothed track; 21 - first spreader; 22 - first hook piece; 221 - pulling piece; 2211 - chamfer;

[0035] 3 - universal joint assembly; 31 - spherical connecting rod; 32 - spherical bushing; 321 - open slot; 322 - tapered chute; 33 - locking member; 331 - latch;

[0036] 4 - handle; 41 - anti-skid groove;

[0037] 5 - lighting device. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0039] The term "one embodiment" or "an embodiment" as used herein means that a particular feature, structure, or characteristic described can be included in at least one implementation of the present application. In the description of the application, it should be understood that the terms "upper" and "lower", "top" and "bottom", and the like, are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features. Moreover, the terms "first", "second", and the like are used to distinguish similar objects, and do not necessarily be used to describe a particular order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0040] Reference should be made to Figures 1-8As shown, a new type of universal mouth corner dilator includes a guide rail 2 and an adjusting part 1 that are slidably matched with each other, the guide rail 2 is provided with a first dilator frame 21 at one end away from the adjusting part 1, the adjusting part 1 is provided with a second dilator frame 11, in this way, the distance between the first dilator frame 21 and the second dilator frame 11 is adjusted by guiding and sliding the adjusting part 13 on the guide rail 2. At the same time, the first dilator frame 21 is connected with a first pull hook part 22 at the lower end, the second dilator frame 11 is connected with a second pull hook part 12 at the lower end, the first dilator frame 21 and the first pull hook part 22 are movably connected through an adjustable universal connecting assembly 3, and the second dilator frame 11 and the second pull hook part 12 are also movably connected through an adjustable universal connecting assembly 3, so that the first pull hook part 22 and the second pull hook part 12 can be adjusted at multiple angles under the driving of the respective universal connecting assembly 3. In this way, the adjustable fixing mechanism is introduced, the guide rail 2 and the adjusting part 1 cooperate to adjust the distance, and the universal connecting assembly 3 drives the pull hook part to adjust at multiple angles, so that the doctor can adjust the position and tension of the pull hook according to the oral structure of the patient and the operation demand. Of course, in order to facilitate the operator to grasp, at least one end of the guide rail 2 is provided with a handle 4. It can be understood that the first pull hook part 22 and the second pull hook part 12 are symmetrically arranged to fit the shape of the oral cavity and facilitate the dilatation of the mouth corner.

[0041] Based on the above technical scheme, the adjusting part 1 specifically includes an adjusting part 13, a stopper 14 and a moving arm 15. Among them, the adjusting part 13 is arranged to drive the moving arm 15 to displace along the guide rail 2 by rotating, the second dilator frame 11 is arranged on the moving arm 15, and the first dilator frame 21 and the second dilator frame 11 realize the increase and decrease of the distance under the rotation of the adjusting part 13, so that the distance between the first pull hook part 22 and the second pull hook part 12 is adjusted. It can be understood that any structure that can realize the above function in the prior art can be adopted.

[0042] At the same time, in order to better fix the distance between the first dilator frame 21 and the second dilator frame 11, the preferred stopper 14 is arranged for limiting and fixing, of course, various automatic stoppers 14 can be adopted in the present application, including but not limited to elastic buckle stoppers 14.

[0043] Specifically, the guide rail 2 is a tooth-shaped rail 2, one end of the adjusting part 13 is provided with a gear 132 that meshes with the tooth-shaped rail 2, the other end is provided with an adjusting handle 131 that can drive the gear 132 to rotate, and the adjusting part 13 can guide and displace along the guide rail 2 and be limited under the cooperation of the moving arm 15 and the stopper 14.

[0044] Similarly, the gear 132 is arranged as a circular external gear 132, which can better realize the purpose of rotating to adjust the distance.

[0045] On this basis, the universal connecting assembly 3 comprises a spherical connecting rod 31, a spherical bushing 32 and a locking piece 33. The spherical connecting rod 31 is fixed at one end to the first or second spreader 21 or 11 and movably installed at the other end in the spherical bushing 32. When the angle adjustment of the first or second hook 22 or 12 is completed, the locking piece 33 cooperates with the spherical bushing 32 to abut against and lock the spherical end of the spherical connecting rod 31.

[0046] Further, preferably, one end of the locking piece 33 is in the form of a hand wheel for easy gripping and adjustment, and the other end is in the form of a latch 331 which penetrates from the side wall of the spherical bushing 32 to abut against the spherical end of the spherical connecting rod 31. When the angle of the hook is adjusted, the latch 331 abutting against the spherical end of the spherical connecting rod 31 can well fix the universal connecting assembly 3 and thus fix the direction of the hook;

[0047] In the preferred embodiment, in order to make the angle of the hook more stable and orderly, the side wall of the spherical bushing 32 is provided with an open slot 321, and the connecting rod end of the spherical connecting rod 31 can be guided and displaced along the open slot 321 around the spherical end of the spherical connecting rod 31. Similarly, the upper end of the spherical bushing 32 is provided with a tapered inclined slot 322, and the connecting rod end of the spherical connecting rod 31 can be angle-adjusted in the tapered inclined slot 322.

[0048] It can be understood that the first and second hooks 22 and 12 are each provided with a pulling piece 221 for fixing the contact surface of the hook with the mouth.

[0049] Correspondingly, the pulling piece 221 is in the form of a semicircular arc which conforms to the curve of the soft tissue of the oral cavity, and the edge of the pulling piece 221 is provided with a chamfer 2211, so that the pulling piece 221 of the hook can better conform to the curve of the soft tissue of the oral cavity, and the contact area of the pulling piece 221 with the mouth of the user can be increased, thereby providing the user with better comfort and stability of the oral cavity.

[0050] For the purpose of stable gripping, the handle 4 is provided with an anti-skid groove 41 for providing better anti-skid effect of gripping, and the whole is more aesthetically pleasing and simple.

[0051] Further, in order to facilitate the tightening operation, the present application further comprises a lighting device 5 which is arranged on the guide rail 2 between the first and second spreaders 21 and 11. The present application integrates the lighting function to provide a better surgical field for the doctor. The lighting device can adopt the structure of the existing technology which can provide a light source.

[0052] The present application provides a new universal mouth corner spreader which at least brings the following beneficial effects:

[0053] 1. An adjustable fixing mechanism is introduced, and the doctor can adjust the position and tension of the hook according to the oral structure of the patient and the surgical requirements.

[0054] 2、Gear and toothed guide rail matching structure sliding rail and automatic stopper provide more accurate positioning for the position adjustment of the pull hook, the universal mechanism makes the adjustment of the position of the pull hook more flexible, and thus the application is more promotional;

[0055] 3、The handles arranged at both ends of the guide rail realize left and right operation fast switching, and the doctor can realize the operation of upward and downward propping open of the corners of the mouth without changing the body position;

[0056] 4、The pulling piece is arranged in a semicircular arc shape and is chamfered at the edge, better fits the curve shape of the soft tissue of the oral cavity, can provide better user comfort, and in addition, integrates the lighting function, provides a better surgical field of view for the doctor.

[0057] The above is only the preferred embodiment of the application, and it should be pointed out that for ordinary skilled persons in the technical field, several improvements and replacements can be made without departing from the technical principles of the application, and these improvements and replacements should be regarded as the protection scope of the application.

Claims

1. A new universal corner stent, characterized in that: The device comprises a guide rail and an adjusting part which are in mutual sliding fit, the guide rail is provided with a first opening rack at one end away from the adjusting part, and the adjusting part is provided with a second opening rack; The lower end of the first opening rack is connected with a first pull hook, the lower end of the second opening rack is connected with a second pull hook, and the first opening rack and the first pull hook and the second opening rack and the second pull hook are movably connected through a universal connecting assembly, so that the first pull hook and the second pull hook are adjusted at multiple angles under the driving of the universal connecting assembly. At least one end of the guide rail is provided with a handle.

2. A new type of universal corner angle dilator according to claim 1, characterized in that, The adjusting part comprises an adjusting member, a stopper and a moving arm; The adjusting member is arranged to drive the moving arm to displace along the guide rail through rotation, the second opening rack is arranged on the moving arm, and the first opening rack and the second opening rack are adjusted in distance under the rotation of the adjusting member, so that the distance between the first pull hook and the second pull hook is adjusted. The stopper is used for limiting and fixing the adjusting part.

3. A new type of universal corner angle dilator according to claim 2, characterized in that, The guide rail is a tooth-shaped rail; One end of the adjusting member is provided with a gear which is engaged with the tooth-shaped rail, and the other end is provided with an adjusting handle which can drive the gear to rotate, and the adjusting member can displace and be limited along the guide rail under the cooperation of the moving arm and the stopper.

4. A new type of universal corner angle dilator according to claim 3, characterized in that, The gear is arranged as a circular external gear.

5. A new type of universal corner angle dilator as claimed in claim 1, wherein, The universal connecting assembly comprises a spherical connecting rod, a spherical bushing and a locking member; One end of the spherical connecting rod is fixed to the first opening rack or the second opening rack, and the other end is movably mounted in the spherical bushing, when the first pull hook or the second pull hook is adjusted in angle, the locking member is matched with the spherical bushing to abut against the spherical end of the spherical connecting rod and is locked and limited.

6. A new type of universal corner angle dilator as claimed in claim 5, wherein, One end of the locking member is in the form of a hand wheel, and the other end is in the form of a bolt which penetrates the side wall of the spherical bushing to abut against the spherical end of the spherical connecting rod. An open groove is arranged on the side wall of the spherical bushing, the connecting rod end of the spherical connecting rod can displace along the open groove guided by the spherical end of the spherical connecting rod, and a tapered chute is arranged on the upper end of the spherical bushing, the connecting rod end of the spherical connecting rod can be adjusted in angle in the tapered chute.

7. A new type of universal corner angle dilator as claimed in claim 1, wherein, The first pull hook and the second pull hook are both provided with a pulling piece.

8. A new type of universal corner angle dilator as claimed in claim 7, wherein, The pulling piece is arranged in the form of a semicircular arc which is matched with the curve of the soft tissue in the oral cavity, and a chamfer is arranged at the edge of the pulling piece.

9. A new type of universal corner stent according to claim 1, characterized in that, A non-slip groove is arranged on the handle.

10. A new type of universal corner grommet spreader as claimed in any one of claims 1 to 9, wherein, An illuminating device is further arranged on the guide rail between the first opening rack and the second opening rack.

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