Medical mouth opener for two-way use

Abstract

The present invention discloses a medical mouth opener for bidirectional use, belonging to the field of medical instruments. It comprises an opening part, a tongue depressing part slidably connected to the opening part, and a positioning part for fixing the relative position of the opening part and the tongue depressing part. The opening part comprises a guide plate, an opening bracket for opening and fixing the patient's oral cavity, and a dental tray for clamping the maxillary teeth detachably arranged at the other end of the opening bracket through a clamping device; both ends of the opening bracket can be detachably arranged on the guide plate through a limiting device, and can be arranged on either side of the guide plate; a fixing part is provided at the part where the tongue depressing part extends into the oral cavity, and an aspirator is rotatably connected to the fixing part. The multiple parts of the present invention are detachably connected. It is convenient for doctors to select a suitable opening direction during surgery, and can be reassembled according to their own habits or the patient's conditions, which is quick and convenient; the direction of the aspirator is adjustable, which is more convenient to use, and is suitable for all medical mouth openers.

Description

[0001] The invention belongs to the field of medical instruments and relates to an opener, in particular to a medical opener for bidirectional use. Background Art

[0002] When performing surgery on patients with oropharyngeal diseases, most patients need to be given general anesthesia, and patients after general anesthesia cannot open their mouths on their own. In the prior art, a DAVIS half-mouth opener is usually used to expose the patient's oropharynx. The DAVIS half-mouth opener includes an opening part and a tongue depressor part. The opening part is an integrated structure, wherein the U-part for opening the mouth and being able to fix its position can only open in one direction, i.e., left-hand opening or right-hand opening. The left-hand opening or right-hand opening mouth opener has its own convenience in different surgical operations, but only one set of mouth openers is usually prepared for each operation. Therefore, the mouth opener that opens in one direction during the operation cannot meet the needs of the doctor when treating different lesions. Finding a suitable half-mouth opener will waste a lot of time, and it may even be impossible to replace it due to the lack of sterilized instruments, thereby causing certain impacts on the surgical operation. In addition, the suction device on the tongue depressor part is fixed, and the position of the suction device may hinder the doctor's operation during the operation, bringing many inconveniences to the operation. Summary of the Invention

[0003] In order to solve the above deficiencies in the prior art, the present invention aims to provide a bidirectional medical mouth opener, so that the direction of the opening bracket can be changed according to the doctor's needs during surgery and the direction of the suction device can be freely adjusted.

[0004] To achieve the above object, the technical solutions adopted by the present invention are as follows:

[0005] A bidirectional medical mouth opener comprises an opening member, a tongue depressing member slidably connected to the opening member, and a positioning member for fixing the relative positions of the opening member and the tongue depressing member. The opening member comprises a guide plate, an opening bracket for holding the patient's mouth open and fixed, and a dental tray detachably mounted on the other end of the opening bracket via a clamping device for clamping the maxillary teeth.

[0006] Both ends of the opening bracket can be detachably mounted on the guide plate through a limiting device, and can be mounted on either side of the guide plate;

[0007] The position where the tongue depressing component extends into the oral cavity is provided with a fixing portion, the fixing portion is rotatably connected with a suction device, and the tongue depressing component is slidably connected to the guide plate.

[0008] As a limitation of the present invention: the opening bracket is provided with an arc that fits the patient's face, and the opening bracket is an axisymmetric U-shaped structure.

[0009] As another limitation of the present invention: the limiting device is a hollow tube fixed on the guide plate, and the outer peripheral surfaces of the two ends of the opening bracket are fixed with spring pins for limiting the lengthwise movement of the opening bracket, and the hollow tube is provided with an opening for a card bead for clamping the spring pin.

[0010] As a further limitation of the present invention: a groove is provided on the inner wall of the hollow tube, and convex strips are fixed on the outer peripheral surfaces of the two free ends of the open bracket, and the convex strips are axially symmetrically arranged and match the grooves; the spring pin is fixed on the convex strips.

[0011] As a further limitation of the present invention: the clamping device includes a sleeve matching the cross-section of the end of the open bracket, and the sleeve is provided with an opening for clamping a clamping bead of the spring pin; the dental tray is fixed on the sleeve.

[0012] As a third limitation of the present invention: the fixing portion is a circular tube fixedly arranged on the tongue depressing component, the suction device is inserted into the circular tube, and can rotate in the circular tube.

[0013] As a further limitation of the present invention: the tongue depressor component includes a tongue depressor and a positioning plate, the tongue depressor is provided with an arc adapted to the tongue; the circular tube is fixed on the tongue depressor, and the positioning plate and the guide plate are slidably connected.

[0014] Due to the adoption of the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0015] (1) The opening bracket of the present invention is detachably mounted on the hollow tube of the guide plate and the sleeve connected to the dental tray through a limiting device. When the doctor needs to change the opening direction of the opening bracket, the opening bracket of the U-shaped structure is removed, rotated 180 degrees, and then fixed on the hollow tube and the sleeve again, thereby meeting the needs of different surgical operations and avoiding the disadvantage that the doctor spends time looking for a suitable mouth opener during surgery. The suction device can be rotatably connected to the tongue depressor and can be rotated to different directions according to the doctor's needs. It is fast, convenient and practical.

[0016] (2) The side of the open bracket of the present invention that contacts the patient is provided with an arc that fits the face, which is ergonomic;

[0017] (3) A hollow tube is fixed on the guide plate of the present invention, and the end of the open bracket is inserted into the hollow tube. A spring pin is provided on the open bracket, and an opening is provided on the hollow tube. When the open bracket is inserted into the hollow tube, the card bead of the spring pin is locked into the opening of the hollow tube, thereby limiting the movement of the open bracket in the length direction. When the direction of the open bracket needs to be changed, the card bead on the spring pin is pressed inward to remove the open bracket. The replacement is convenient and fast, and the fixation is accurate.

[0018] (4) The inner wall of the hollow tube of the present invention is provided with a groove, and the opening bracket is provided with a convex strip matching the groove, which can effectively prevent the opening bracket from rotating. When the opening bracket is fixed to the guide plate, it is more secure. The best fixing method for the opening bracket can be found by simply inserting the convex strip into the groove, which is quick and convenient.

[0019] (5) The dental tray of the present invention is fixed on the sleeve, and the sleeve matches the cross-section of the end of the open bracket. The sleeve only needs to be put on the end of the open bracket. When fixing, the sleeve can be fixed by connecting the bead of the spring pin to the opening of the sleeve. It can match the two ends of the open bracket and is easy to disassemble and assemble;

[0020] (6) The fixing portion of the present invention is a round tube, and the suction device is inserted into the round tube and can rotate in the round tube. Because the suction device is not subjected to other forces, the suction device can be directly inserted into the round tube and rotated quickly and flexibly. When the position of the suction device needs to be adjusted, it is convenient for the doctor to operate it during the operation, which facilitates the operation.

[0021] In summary, the multiple components of the present invention are detachably connected, which makes it easy for doctors to choose the appropriate opening direction during surgery. They can be reassembled according to their own habits or the patient's conditions. It is quick and convenient, the position of the suction device is adjustable, and it is more convenient to use. It is suitable for all medical mouth openers. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0023] Figure 1 This is a structural diagram of the opening bracket 12 of an embodiment of the present invention opening the oral cavity to the right;

[0024] Figure 2 This is a structural diagram of the opening bracket 12 of an embodiment of the present invention opening the oral cavity to the left;

[0025] Figure 3 This is a schematic structural diagram of an opening bracket 12 according to an embodiment of the present invention;

[0026] Figure 4 1 is a schematic structural diagram of the embodiment of the present invention when the open bracket 12 is fixed to the sleeve 3 and the hollow tube 6.

[0027] In the figure: 1-opening component, 11-guide plate, 12-opening bracket, 13-dental tray, 2-tongue depressor component, 21-positioning plate, 22-tongue depressor, 3-sleeve, 4-fixing plate, 5-suction device, 6-hollow tube, 7-groove, 8-rib, 9-opening, 10-spring pin, 101-positioning component. DETAILED DESCRIPTION

[0028] The preferred embodiment of the present invention will be described below with reference to the accompanying drawings. It should be understood that the bidirectional medical mouth opener described herein is a preferred embodiment and is only used to illustrate and explain the present invention and does not constitute a limitation of the present invention.

[0029] Example: Medical mouth opener for two-way use

[0030] This embodiment Figure 1-Figure 4 As shown, a bidirectional medical opener comprises an opening member 1, a tongue depressing member 2 slidably connected to the opening member 1, and a positioning member 101 for fixing the relative position of the opening member 1 and the tongue depressing member 2. The sliding connection of this embodiment adopts the connection method of the DAVIS half opener in the prior art, and the relative position of the two is fixed by the positioning member 101. The positioning member 101 also adopts the fixed structure of the DAVIS half opener in the prior art. Because this is not the inventive point of the present invention and the prior art is adopted, it will not be elaborated in detail.

[0031] The opening member 1 comprises a guide plate 11, an opening bracket 12, and a dental tray 13. The opening member 1 slides along the length of the guide plate 11. The opening bracket 12 is an axisymmetric U-shaped structure, used to open and secure the patient's pharynx. It has an arc that conforms to the patient's face. A rectangular convex strip 8 is fixed to the outer circumference of each free end of the opening bracket 12, and the convex strips 8 are located on opposite sides of the U-shaped opening bracket 12. Both ends of the opening bracket 12 can be detachably attached to the guide plate 11 via a stopper and can be installed on either side of the guide plate 11.

[0032] The limiting device is a hollow tube 6 fixed on the guide plate 11. The hollow tube 6 is a hollow circular tube with a groove 7 on the inner wall. The ridge 8 on the opening bracket 12 matches the groove 7. When one free end of the opening bracket 12 is inserted into the hollow tube 6, the ridge 8 on the opening bracket 12 matches the groove 7 on the inner wall of the hollow tube 6, which can limit the circumferential rotation of the opening bracket 12. A spring pin 10 is fixed on the ridge 8 of the opening bracket 12 for limiting the movement of the opening bracket 12 along the length direction of the hollow tube 6. The spring pin 10 adopts the existing technology, including a spring and a bead fixed on one end of the spring. The hollow tube 6 is provided with an opening 9 for clamping the bead of the spring pin 10. The opening 9 is a through hole. When the bead is clamped to the opening 9, the surface of the bead can be exposed at the opening 9, clamping the opening bracket 12.

[0033] The dental tray 13 is detachably mounted on the end of the open bracket 12 not connected to the guide plate 11 by a snap-fit ​​device. The snap-fit ​​device includes a sleeve 3 that matches the cross-section of the end of the open bracket 12. That is, the sleeve 3 is a hollow circular tube and is provided with a groove 7 that matches the ridge 8. The dental tray 13 is fixed to the sleeve 3. Because the ridges 8 at the two free ends of the open bracket 12 are fixed with spring pins 10, the groove 7 of the sleeve 3 is provided with an opening 9 for a bead that engages the spring pin 10, which is used to limit the movement of the sleeve 3 along the length of the open bracket 12. It will be understood by those skilled in the art that the ridges 8 at the two free ends of the open bracket 12 are of the same size and are symmetrically arranged on the inner side of the open bracket 12. The grooves 7 on the hollow tube 6 and the sleeve 3 are of the same size and can match any of the ridges 8. The openings 9 on the hollow tube 6 and the sleeve 3 are of the same size and are both located in the groove 7, corresponding to the positions of the two spring pins 10.

[0034] The tongue depressor 2 includes a positioning plate 21 and a tongue depressor 22. The tongue depressor 22 extends into the oral cavity and is used to press the tongue downward to fully expose the surgical field. The positioning plate 21 is perpendicular to the tongue depressor 22 and is slidably connected to the guide plate 11. The tongue depressor 22 is located outside the oral cavity. The tongue depressor 22 is provided with a curvature that adapts to the tongue. The tongue depressor 22 is provided with a fixing portion. In this embodiment, the fixing portion is a hollow circular tube. The circular tube is fixed to the tongue depressor 22. The hollow circular tube is rotatably connected to the suction device 5. The inner diameter of the hollow circular tube is larger than the outer diameter of the suction device 5. Therefore, the suction device 5 is inserted into the circular tube and can rotate within the circular tube. The doctor can adjust the position of the suction device 5 according to the needs of the operation.

[0035] When using this embodiment, when it is necessary to turn the opening 9 of the opening bracket 12 to the left, one free end of the opening bracket 12 is inserted into the hollow tube 6, and the protrusion 8 on the opening bracket 12 is aligned with the groove 7 of the hollow tube 6. When the spring pin 10 on the protrusion 8 is engaged with the opening 9 of the hollow tube 6, the insertion of the opening bracket 12 is stopped. Then, the sleeve 3 is inserted into the other free end of the opening bracket 12, and the groove 7 on the sleeve 3 is engaged with the protrusion 8 on the other end of the opening bracket 12. When the bead of the spring pin 10 is engaged with the opening 9 of the sleeve 3, the advancement is stopped and the sleeve 3 is fixed to the opening bracket 12. When in use, the dental tray 13 is engaged with the patient's upper incisors, and the positioning plate 22 of the tongue depressor 2 is moved along the guide plate 11 away from the upper incisors until the tongue depressor 21 presses the tongue, so that the surgical field is fully exposed. When the opening 9 of the opening bracket 12 needs to be directed to the right, the other end of the opening bracket 12 is inserted into the hollow tube 6. Because of its symmetrical structure, the curvature of the opening bracket 12 still fits the face.

Claims

1. A two-way medical mouth opener, comprising an opening member, a tongue depressing member slidably connected to the opening member, and a positioning member for fixing the relative positions of the opening member and the tongue depressing member, characterized in that: The opening component includes a guide plate, an opening bracket for opening and fixing the patient's oral cavity, and a dental tray detachably arranged at the other end of the opening bracket through a clamping device for clamping the maxillary teeth; Both ends of the opening bracket can be detachably arranged on the guide plate through a limiting device, and can be arranged on any side of the guide plate; The portion where the tongue depressing member extends into the oral cavity is provided with a fixing portion, the fixing portion is rotatably connected with a suction device, and the tongue depressing member is slidably connected to the guide plate; The limiting device is a hollow tube fixed on the guide plate, and the outer peripheral surfaces of the two ends of the opening bracket are fixed with spring pins for limiting the movement of the opening bracket in the length direction. The hollow tube is provided with an opening for a clamping bead for clamping the spring pin, and the opening is a through hole. When the clamping bead is clamped to the opening, the surface of the clamping bead can be exposed at the opening to clamp the opening bracket; The inner wall of the hollow tube is provided with a groove, and the outer peripheral surfaces of the two free ends of the open bracket are fixed with convex strips, the convex strips are axially symmetrically arranged and matched with the grooves; the spring pin is fixed on the convex strips; The clamping device comprises a sleeve matching the cross section of the end of the open bracket, and the sleeve is provided with an opening for clamping the clamping bead of the spring pin; the dental tray is fixed on the sleeve; The fixing part is a round tube fixedly arranged on the tongue pressing part, and the suction device is inserted into the round tube and can rotate in the round tube.

2. The two-way medical mouth opener according to claim 1, characterized in that: The opening bracket is provided with an arc that fits the patient's face, and the opening bracket is an axisymmetric U-shaped structure.

3. The two-way medical mouth opener according to claim 2, characterized in that: The tongue depressor component comprises a tongue depressor and a positioning plate, wherein the tongue depressor is provided with an arc adapted to the tongue; the circular tube is fixed on the tongue depressor, and the positioning plate is slidably connected with the guide plate.

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