Visual field expander for tooth cavity

Abstract

The invention relates to the technical field of medical apparatus and instruments, and discloses a tooth lumen visual field dilator, which comprises a mouth gag, which comprises a supporting strip for supporting and cushioning upper and lower rows of teeth, flexible biting strips fixedly connected to the upper and lower ends of the supporting strip, and the mouth gag is used for locking and fixing the position of the supporting strip by biting and pressing the teeth; the jaw supporting device comprises a head support which is of an arc-shaped structure and is used for being worn on the head; one end of the head support is detachably connected with the mouth gag through a thread, and the head support is arranged at a non-operative tooth part; the jaw support is telescopically connected to one end, opposite to the mouth gag, of the head support, is of an arc-shaped hook-shaped structure and is used for hooking and supporting the lower jaw of a patient. The mouth gag is used for opening and supporting the mouth of a patient, the supporting strip is used for stably opening the mouth, the inclined biting strips with the air bag strips are used at the upper end and the lower end of the supporting strip, teeth are stably bitten along the mouth opening angle, sliding displacement is avoided, and the operation field of the tooth part is exposed through stable mouth opening.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, in particular to a tooth inner cavity visual field expander. Background Art

[0002] Teeth are the hardest organs in the human body. In addition to the functions of cutting, biting and chewing, they also play a role in maintaining facial appearance and assisting pronunciation. When there is a problem with the teeth, timely treatment should be sought. Common treatment methods include tooth extraction, which aims to eliminate terminal lesions of dental diseases such as severe caries, severe periodontal disease, impacted teeth (wisdom teeth), etc., or treatment requires the removal of teeth that have no retention value, such as supernumerary teeth, retained deciduous teeth, infected lesion teeth, teeth damaged by cysts or tumors, severely damaged and traumatized teeth, and teeth with accumulated lesions from radiotherapy. Tooth extraction is a radical surgery. Usually after tooth extraction treatment, the primary disease can be cured and no further treatment is required.

[0003] When extracting relatively complex teeth, some patients have trouble opening their mouths, and forcing their mouths too wide can easily cause jaw dislocation. For example, when extracting impacted teeth that have not erupted safely, the patient needs to maintain a stable mouth opening to expose the surgical field. At this time, the gums will block the operation in the mouth, and a flap needs to be opened to fully expose the operation. At this time, the buccal and lingual gums on both sides of the tooth are at risk of injury during surgery, and improvements need to be made throughout the entire surgical field exposure process.

[0004] To this end, we proposed a dental cavity visual field expander to solve the problems existing in the above-mentioned surgical field exposure process. Summary of the Invention

[0005] The object of the present invention is to provide a tooth inner cavity visual field expander to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a tooth cavity visual field expander, comprising: The mouth opener includes a support bar for supporting the upper and lower rows of teeth, and a flexible bite bar fixedly connected to the upper and lower ends of the support bar for locking the position of the fixed support bar by biting the teeth; The jaw support device includes a head support with an arc-shaped structure for wearing on the head; one end of the head support is detachably connected to the mouth opener via a wire and is placed on the tooth area not undergoing surgery; the end of the head support opposite to the mouth opener is telescopically connected to the jaw support, which has an arc-shaped hook structure for hooking and supporting the patient's lower jaw; The gum spacer includes an extension rod detachably connected to one side of the support bar, the extension rod is close to the upper teeth, and two arc-shaped pressure flaps are detachably connected to the bottom of one end of the extension rod. The two pressure flaps are used to push the lingual gum and buccal gum outward respectively.

[0007] As an optional solution of the tooth cavity visual field expander of the present invention, the support strips are configured as rigid medical PVC strips.

[0008] As an optional solution of the tooth cavity visual field expander described in the present invention, the side of the support bar facing the cheek is formed with an arc-shaped raised drum veneer, and the arc surface of the drum veneer contacts the oral cavity.

[0009] As an optional solution of the tooth cavity visual field expander described in the present invention, the bite strip is configured as a flexible medical PVC strip, which is inclined outward along the opening angle of the upper and lower teeth to form an inclined surface.

[0010] As an optional solution of the tooth cavity visual field expander of the present invention, the inclined surface is integrally connected with a plurality of air bag strips arranged at equal intervals for tooth occlusion.

[0011] As an optional solution of the tooth cavity visual field expander of the present invention, the head support and the jaw support are both configured as plastic parts.

[0012] As an optional solution of the tooth inner cavity field expander described in the present invention, one end of the jaw support is integrally connected to a vertically arranged telescopic strip, one end of the head support is integrally connected to a guide strip, one end of the guide strip is slidably inserted into a guide groove opened at the end of the telescopic strip, a fastening knob is threadedly connected to one side of the telescopic strip, and one end of the fastening knob is movably opposed to the guide strip.

[0013] As an optional solution of the tooth cavity field expander described in the present invention, the thread is configured as a flexible PVC medical plastic thread, a stud is fixedly connected to one end of the thread, a threaded hole is opened in the middle of the side of the support bar facing the mouth, and the stud is threadedly installed in the threaded hole.

[0014] As an optional solution of the tooth cavity visual field expander of the present invention, wherein: the gum spacer is configured as a rigid medical PVC part; One end of the extension rod is detachably threaded to one side of the bite bar via a threaded head; The upper ends of the two pressing petals are integrally connected to a vertical rod, forming a slot between the two pressing petals, and the bottom of the slot is at least 10 mm away from the upper end surface of the lower tooth; The top of the vertical rod is detachably threadedly connected to the bottom of the extension rod through a threaded head.

[0015] As an optional solution of the tooth cavity visual field expander described in the present invention, the bottom of one end of the extension rod is fixedly connected to an LED lamp tube, and the light of the LED lamp tube is tilted toward the tooth surgical site below the oral groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. This dental intracavity field expander uses an opener to support the patient's mouth opening, a stay to maintain a stable mouth opening, and inclined bite bars with airbag bars at the upper and lower ends of the stays to stabilize the teeth along the mouth opening angle, avoiding sliding and displacement, and stably opening the mouth to expose the surgical field of the dental area; 2. The dental intracavity visual field expander adopts a jaw support composed of a head support, a jaw support and a wire. It can be quickly put on the head, and then the jaw support with adjustable height is used to hook up and support the patient's lower jaw to prevent the jaw from being dislocated due to long-term opening. The wire can be freely combined with the opener of the size required by the patient's mouth to support the patient's jaw after opening the mouth, preventing the jaw from being dislocated due to long-term opening, and improving the safety of the opening support. 3. The tooth cavity field expander is connected to an extension rod on one side of the opener, and two arc-shaped opening-arranged flap pressure pieces are used at the end of the extension rod to open the flap after surgical incision, limit the lingual gum and buccal gum, further expose the surgical field of the tooth area, reduce the risk of injury to the lingual gum and buccal gum, and improve the surgical field exposure effect of the opening operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of Example 1 of the present invention; Figure 2 It is a side view of the structure of the mouth opener of the present invention; Figure 3 Schematic diagram of the cross-sectional structure of the mouth opener of the present invention; Figure 4 This is a partial cross-sectional diagram of the main structure of Example 1 of the present invention; Figure 5 This is a schematic diagram of the main structure of Example 2 of the present invention.

[0018] In the figure: 1. Opener; 101. Support bar; 102. Drum veneer; 103. Bite strip; 104. Bevel; 105. Airbag strip; 2. Jaw support; 201. Head support; 202. Jaw support; 203. Guide strip; 204. Telescopic strip; 205. Guide groove; 206. Fastening knob; 207. Thread; 208. Stud; 209. Threaded hole; 3. Gum spacer; 301. Extension rod; 302. Vertical rod; 303. Petal pressure piece; 4. LED lamp tube. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Example 1 See also Figure 1-Figure 4 , a tooth cavity visual field expander, comprising: The mouth opener 1 includes a support bar 101 for supporting the upper and lower rows of teeth, and a flexible bite bar 103 is fixedly connected to the upper and lower ends of the support bar 101 for locking the position of the fixed support bar 101 by biting the teeth; In this embodiment 1, the support bar 101 is configured as a rigid medical PVC bar, which can be safely placed in the oral opening for support use; Furthermore, a curved convex bulge surface 102 is formed on the side of the support bar 101 facing the cheek, and the curved surface of the bulge surface 102 touches the oral cavity, allowing the cheek to bulge outward.

[0021] When the mouth is opened, the facial muscles stretch, the outer walls of the teeth touch the inner wall of the mouth, and the cheeks bulge outward through the bulging surface 102 of the support bar 101, preventing the teeth from accidentally biting the oral mucosa inside the mouth when biting the upper and lower ends of the support bar 101.

[0022] In life, obesity is quite common, and some people also have fat faces. Even when chewing in daily life, they may accidentally bite the oral mucosa on the inside of the cheek. Taking these problems into consideration, an arc-shaped protrusion is provided on one side of the support bar 101 to form a drum veneer 102, which pushes outward the oral mucosa on the outside of the teeth to avoid accidental biting of the oral mucosa when biting and pressing the support bar 101.

[0023] In this embodiment 1, the bite strip 103 is configured as a flexible medical PVC strip, which is inclined outward along the opening angle of the upper and lower teeth to form an inclined surface 104 for tooth occlusion; Furthermore, the inclined surface 104 is integrally connected with a plurality of air bag strips 105 arranged at equal intervals, which are used for tooth occlusion and can allow the teeth to be embedded and hook the opener 1, thereby avoiding sliding and displacement, and stably opening the mouth to expose the surgical field of the tooth area.

[0024] It should be noted that when the patient raises his head and opens his mouth, the inclined surface 104 above the support bar 101 is tilted upward, and the inclined surface 104 above the support bar 101 is tilted downward, so that the bite bar 103 is placed in the oral cavity to allow the upper and lower teeth of the open mouth to bite relative to each other.

[0025] The jaw support device 2 includes a head support 201 with an arc-shaped structure for wearing on the head; one end of the head support 201 is detachably connected to the opener 1 via a thread 207 and is placed on the tooth area not requiring surgery, opening the tooth to expose the tooth area requiring surgery; the end of the head support 201 opposite the opener 1 is telescopically connected to the jaw support 202, which has an arc-shaped hook structure and is used to hook and support the patient's lower jaw to prevent jaw dislocation caused by prolonged opening of the jaw; In this embodiment 1, the head support 201 and the jaw support 202 are both made of plastic, so that the head support 201 can be elastically deformed and worn on the patient's head, just like some headphones. In this embodiment 1, one end of the jaw support 202 is integrally connected to an upright telescopic bar 204, and one end of the head support 201 is integrally connected to a guide bar 203. One end of the guide bar 203 is slidably inserted into a guide groove 205 opened at the end of the telescopic bar 204. A tightening knob 206 is threadedly connected to one side of the telescopic bar 204. One end of the tightening knob 206 is movably pressed against the guide bar 203 for loosening and fixing, and is used for adjusting the jaw support 202 up and down, so as to adapt the jaw support to the patient.

[0026] In this embodiment 1, the thread 207 is set as a flexible PVC medical plastic thread, and a stud 208 is fixedly connected to one end of the thread 207. A threaded hole 209 is opened in the middle of the side of the support bar 101 facing the mouth, and the stud 208 is threadedly installed in the threaded hole 209. The combined opener 1 is on the jaw supporter 2 for easy use together.

[0027] When in use, the detachably connected mouth opener 1 can be flexibly used by selecting a suitable size according to the patient's mouth opening needs.

[0028] That is, the jaw support device 2 composed of the head support 201, the jaw support 202 and the thread 207 can be quickly put on the head, and then the jaw support 202 with adjustable height is used to hook and support the patient's lower jaw to prevent the jaw from being dislocated due to long-term opening of the mouth. In addition, the thread 207 can be freely combined with the mouth opener 1 of the specifications required by the patient to open the mouth, so as to support the patient's jaw after opening the mouth, prevent the jaw from being dislocated due to long-term opening of the mouth, and improve the safety of the mouth support. The gum spacer 3 includes an extension rod 301 detachably connected to one side of the support bar 101. The extension rod 301 is located near the upper teeth. Two arc-shaped pressure flaps 303 are detachably connected to the bottom of one end of the extension rod 301. The two pressure flaps 303 are used to respectively expand the lingual and buccal gums outward, limit the opening of the flap after surgical incision, and expose the surgical field of the teeth.

[0029] In this embodiment 1, the gum spacer 3 is configured as a hard medical PVC component, which is safe for use in the patient's oral cavity; One end of the extension rod 301 is detachably threaded to one side of the bite bar 103 via a threaded head. The extension rod 301 of a suitable length can be selected according to the patient's mouth shape, so that the end of the extension rod 301 can be extended to the tooth area where surgery is required; The upper ends of the two pressing petals 303 are integrally connected to the vertical rod 302, forming a slot between the two pressing petals 303. The bottom of the slot is at least 10 mm away from the upper end surface of the lower tooth, leaving enough space for surgical operation. The top of the vertical rod 302 is detachably threadedly connected to the bottom of the extension rod 301 through a threaded head. The vertical rod 302 of appropriate length can be selected according to the patient's mouth shape to press the flap and leave enough space for surgical operation.

[0030] Example 2 Based on Example 1, please refer to Figure 5 , to improve the clarity of the surgical field of view: In this embodiment 2, an LED lamp tube 4 is fixedly connected to the bottom of one end of the extension rod 301. The light of the LED lamp tube 4 is tilted toward the dental surgical site below the oral cavity to provide lighting and improve the clarity of the surgical field of view.

[0031] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A tooth cavity visual field expander, characterized in that: include: An opener (1) comprises a support bar (101) for supporting upper and lower rows of teeth, and flexible bite bars (103) fixedly connected to the upper and lower ends of the support bar (101) for locking the position of the fixed support bar (101) by biting the teeth; The jaw support device (2) comprises a head support (201) having an arc-shaped structure and is used for wearing on the head; one end of the head support (201) is detachably connected to the mouth opener (1) via a thread (207) and is arranged on a tooth portion not to be operated on; and one end of the head support (201) opposite to the mouth opener (1) is telescopically connected to the jaw support (202), which has an arc-shaped hook-shaped structure and is used for hooking and supporting the patient's lower jaw; The gum spacer (3) comprises an extension rod (301) detachably connected to one side of the support bar (101), the extension rod (301) being close to the upper teeth, and two arc-shaped opening-arranged pressure flaps (303) detachably connected to the bottom of one end of the extension rod (301), the two pressure flaps (303) being used to respectively spread the lingual gum and the buccal gum outward.

2. The tooth cavity visual field expander according to claim 1, characterized in that: The support bar (101) is configured as a rigid medical PVC bar.

3. The tooth cavity visual field expander according to claim 1, characterized in that: The side of the support bar (101) facing the cheek is formed with an arc-shaped raised drum veneer (102), and the arc surface of the drum veneer (102) contacts the oral cavity.

4. The tooth cavity visual field expander according to claim 1, characterized in that: The bite strip (103) is configured as a flexible medical PVC strip, which is inclined outward along the opening angle of the upper and lower teeth to form an inclined surface (104).

5. The tooth cavity visual field expander according to claim 4, characterized in that: A plurality of airbag strips (105) arranged at equal intervals are integrally connected to the inclined surface (104) for use in tooth occlusion.

6. The tooth cavity visual field expander according to claim 1, characterized in that: The head support (201) and the jaw support (202) are both configured as plastic parts.

7. The tooth cavity visual field expander according to claim 1, characterized in that: One end of the jaw support (202) is integrally connected to a vertically arranged telescopic bar (204), and one end of the head support (201) is integrally connected to a guide bar (203). One end of the guide bar (203) is slidably inserted into a guide groove (205) provided at the end of the telescopic bar (204). A tightening knob (206) is threadedly connected to one side of the telescopic bar (204), and one end of the tightening knob (206) movably contacts the guide bar (203).

8. The tooth cavity visual field expander according to claim 1, characterized in that: The thread (207) is configured as a flexible PVC medical plastic thread, and a stud (208) is fixedly connected to one end of the thread (207). A threaded hole (209) is provided in the middle of the side of the support bar (101) facing the mouth, and the stud (208) is threadedly installed in the threaded hole (209).

9. The tooth cavity visual field expander according to claim 1, characterized in that: The gum spacer (3) is configured as a rigid medical PVC part; One end of the extension rod (301) is detachably threadedly connected to one side of the bite bar (103) via a threaded head; The upper ends of the two pressing petals (303) are integrally connected to a vertical rod (302), forming a groove between the two pressing petals (303), with the bottom of the groove at least 10 mm away from the upper end surface of the lower tooth; The top of the vertical rod (302) is detachably threadedly connected to the bottom of the extension rod (301) via a threaded head.

10. The tooth cavity visual field expander according to claim 9, characterized in that: An LED lamp tube (4) is fixedly connected to the bottom of one end of the extension rod (301), and light from the LED lamp tube (4) is directed obliquely toward the tooth surgery site below the oral cavity.

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