CN210844795U - Special tooth lip protector for anesthesia - Google Patents

Special tooth lip protector for anesthesia Download PDF

Info

Publication number
CN210844795U
CN210844795U CN201921331681.4U CN201921331681U CN210844795U CN 210844795 U CN210844795 U CN 210844795U CN 201921331681 U CN201921331681 U CN 201921331681U CN 210844795 U CN210844795 U CN 210844795U
Authority
CN
China
Prior art keywords
protecting sleeve
tooth
groove
sleeve
lip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201921331681.4U
Other languages
Chinese (zh)
Inventor
董世阳
张庆伟
于颖颖
陈自洋
刘存明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Province Hospital First Affiliated Hospital Of Nanjing Medical University
Original Assignee
Jiangsu Province Hospital First Affiliated Hospital Of Nanjing Medical University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Province Hospital First Affiliated Hospital Of Nanjing Medical University filed Critical Jiangsu Province Hospital First Affiliated Hospital Of Nanjing Medical University
Priority to CN201921331681.4U priority Critical patent/CN210844795U/en
Application granted granted Critical
Publication of CN210844795U publication Critical patent/CN210844795U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Endoscopes (AREA)

Abstract

The utility model provides a special tooth-lip protector for anesthesia, which comprises an upper tooth protecting sleeve, a lower tooth protecting sleeve, an upper lip protecting sleeve and a lower lip protecting sleeve; the upper tooth protecting sleeve and the lower tooth protecting sleeve are oppositely arranged, and two ends of the upper tooth protecting sleeve and the lower tooth protecting sleeve are fixedly connected through a soft traction strip; a first groove is arranged in the upper gear guard sleeve, a second groove is arranged in the lower gear guard sleeve, and the opening directions of the first groove and the second groove are opposite; the upper lip protecting sleeve is integrally connected to the outer side of the upper tooth protecting sleeve, a third groove is formed in the upper lip protecting sleeve, the opening direction of the third groove is the same as that of the first groove, the lower lip protecting sleeve is integrally connected to the outer side of the lower tooth protecting sleeve, a fourth groove is formed in the lower lip protecting sleeve, and the opening direction of the fourth groove is the same as that of the second groove; the side edge of the lower lip protecting sleeve is provided with a first fixing groove, a movable lifting support rod is arranged in the first fixing groove, and a second fixing groove used for inserting and fixing the support rod is arranged at the position corresponding to the upper tooth protecting sleeve.

Description

Special tooth lip protector for anesthesia
Technical Field
The utility model relates to the technical field of medical equipment, especially, relate to a special tooth lip protector of anesthesia.
Background
In the existing anesthesia medical technology, particularly when general anesthesia tracheal intubation is carried out, an anesthesiologist firstly separates the upper jaw and the lower jaw of a patient with one hand, holds a laryngoscope with the other hand to place the laryngoscope in an oral cavity, then slightly pushes the headrest of the patient with the other hand to promote the head and the neck of the patient to lean backwards, and holds the laryngoscope with the one hand to continuously go deep into the oral cavity so as to observe the position of a glottis. When the laryngoscope is further arranged, the lip is always involved between the laryngoscope lens and the teeth due to the friction effect of the laryngoscope lens, so that the lip is damaged, the lip is slightly hematoma is formed, and the lip is cracked and bleeds severely. Causing unnecessary injuries and panic to patients, especially children and family members. In some patients with missing teeth, especially those without teeth, the hardness of the laryngoscope blade is high, which may cause the teeth to fall off or damage the patient's gums during the process of lifting the laryngoscope handle to lift the tongue root. In the prior art, the protection measures for the lips are less, and in clinical practice, to avoid the situation, another anesthesia medical staff is often needed to assist in protecting the lips and lifting the lower jaw from the outside of the head. Therefore, a device capable of effectively protecting the teeth and lips of a patient is urgently needed to be provided clinically, so that the safety of the patient during tracheal intubation is improved, the labor amount of medical workers is reduced, and the doctor-patient relationship is improved.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, the utility model provides a special tooth lip protector of anesthesia.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a special dental lip protector for anesthesia comprises an upper tooth protecting sleeve, a lower tooth protecting sleeve, an upper lip protecting sleeve and a lower lip protecting sleeve; the upper tooth protecting sleeve and the lower tooth protecting sleeve are oppositely arranged, and two ends of the upper tooth protecting sleeve and the lower tooth protecting sleeve are fixedly connected through a soft traction strip; a first groove is formed in the upper gear guard sleeve, a second groove is formed in the lower gear guard sleeve, and the opening directions of the first groove and the second groove are opposite; the upper lip protecting sleeve is integrally connected to the outer side of the upper tooth protecting sleeve, a third groove is formed in the upper lip protecting sleeve, the opening direction of the third groove is the same as that of the first groove, the lower lip protecting sleeve is integrally connected to the outer side of the lower tooth protecting sleeve, a fourth groove is formed in the lower lip protecting sleeve, and the opening direction of the fourth groove is the same as that of the second groove; the lower lip protecting sleeve is characterized in that a first fixing groove is formed in the side edge of the lower lip protecting sleeve, a movable lifting support rod is arranged in the first fixing groove, and a second fixing groove used for inserting and fixing the support rod is formed in the position, corresponding to the upper tooth protecting sleeve, of the upper tooth protecting sleeve.
Preferably, the upper tooth protecting sleeve and the lower tooth protecting sleeve are both U-shaped.
Preferably, an arc-shaped upper jaw protection plate is arranged on the inner side of the upper tooth protection sleeve, the upper jaw protection plate is integrally connected with the inner side edge of the upper tooth protection sleeve, and the direction of the upper jaw protection plate is the same as the opening direction of the first groove; the lower tooth protecting sleeve is internally provided with an arc-shaped lower jaw protecting plate, the lower jaw protecting plate is integrally connected with the inner side edge of the lower tooth protecting sleeve, and the direction of the lower jaw protecting plate is the same as the opening direction of the second groove.
Preferably, the bottom surface of the upper lip protector is higher than the bottom surface of the upper tooth protector, and the bottom surface of the lower lip protector is lower than the bottom surface of the lower tooth protector.
Preferably, the bracing piece is length-adjustable's combination pole and includes interior screw rod and outer sleeve, the external screw thread is covered with in the interior screw rod outside, the outer sleeve inboard be equipped with thread fit's internal thread, the outer sleeve suit in the interior screw rod outside and with interior screw rod threaded connection, the interior screw rod is kept away from the one end movably of outer sleeve inlays and is adorned in the first fixed slot, the outer sleeve is kept away from the one end of interior screw rod with second fixed slot detachably fixed connection.
Preferably, the bracing piece, first fixed slot and the second fixed slot are two, two first fixed slot is integrative setting respectively in the both sides of lower tooth protecting sleeve, two the bracing piece movably fixes respectively in two first fixed slot, two the second fixed slot is integrative setting respectively in the both sides of going up tooth protecting sleeve, two first fixed slot and two the second fixed slot is the one-to-one respectively.
Compared with the prior art, the beneficial effects of the utility model are that: the structure is simple, the use is convenient, the tooth protecting sleeve is matched with the lip protecting sleeve, the friction between the laryngoscope lens and the lips of a patient can be effectively blocked, the lips can be prevented from being rolled between the laryngoscope lens and the teeth due to the arrangement of a laryngoscope, the damage to the lips can be prevented, and the lips of the patient can be effectively protected; the teeth and the gingiva of a patient can be effectively protected by utilizing the tooth protecting sleeve, and the damage of the laryngoscope lens to the gingiva and the teeth of the patient is avoided; in addition, the setting of bracing piece, can be before carrying out trachea cannula, support the bracing piece at last tooth protecting sleeve under and between the tooth protecting sleeve, the jaw effectively parts about the patient earlier, liberation medical personnel's both hands, the follow-up laryngoscope of being convenient for is put into, and can loosen the outer sleeve according to the operation demand soon, thereby the length of extension bracing piece, and then can part bigger angle with the jaw about the patient, be convenient for operate, also can reduce laryngoscope piece and patient's tooth, the contact of gum or lip, it puts into the injury to patient's tooth to reduce the laryngoscope, gum and patient's lip.
Drawings
Fig. 1 is a schematic view of the overall structure of a special tooth-lip protector for anesthesia of the present invention.
Fig. 2 is a side sectional view of the utility model of the special anesthesia tooth-lip protector in reuse.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic view of an overall structure of a special anesthesia tooth-lip protector of the present invention. Fig. 2 is a side sectional view of the utility model of the special anesthesia tooth-lip protector in reuse.
As shown in fig. 1 and 2, a special tooth-lip protector for anesthesia according to an embodiment of the present invention includes an upper tooth-protecting sleeve 1, a lower tooth-protecting sleeve 2, an upper lip-protecting sleeve 3, and a lower lip-protecting sleeve 4; the upper tooth protecting sleeve 1 and the lower tooth protecting sleeve 2 are oppositely arranged, and two ends of the upper tooth protecting sleeve 1 and the lower tooth protecting sleeve 2 are fixedly connected through the soft traction strip 5, the soft traction strip 5 can meet the connection performance, prevent the upper tooth protecting sleeve 1 and the lower tooth protecting sleeve 2 from loosening, and ensure that the upper tooth protecting sleeve 1 and the lower tooth protecting sleeve 2 can move and are convenient to open and close; a first groove 6 is arranged in the upper tooth protecting sleeve 1, a second groove 7 is arranged in the lower tooth protecting sleeve 2, the opening directions of the first groove 6 and the second groove 7 are opposite, namely the opening of the first groove 6 is upward, the opening of the second groove 7 is downward, the first groove 6 is used for containing and protecting the upper teeth or gum of a patient, and the second groove 7 is used for containing and protecting the lower teeth or gum of the patient; the upper lip protecting sleeve 3 is integrally connected to the outer side of the upper tooth protecting sleeve 1, a third groove 8 is formed in the upper lip protecting sleeve 3, the opening direction of the third groove 8 is the same as that of the first groove 6, the opening of the third groove 8 faces upwards to contain and protect the upper lip of a patient, the lower lip protecting sleeve 4 is integrally connected to the outer side of the lower tooth protecting sleeve 2, a fourth groove 9 is formed in the lower lip protecting sleeve 4, the opening direction of the fourth groove 9 is the same as that of the second groove 7, and the opening of the fourth groove 9 faces downwards to contain and protect the lower lip of the patient; the side edge of the lower lip protecting sleeve 4 is provided with a first fixing groove 10, a movable up-down supporting rod 11 is arranged in the first fixing groove 10, and a second fixing groove 12 for inserting and fixing the supporting rod 11 is arranged at the corresponding position of the upper tooth protecting sleeve 1. The tooth lip protector is supported by food-grade silica gel, has moderate softness and can deform, thereby being convenient to install and use.
The utility model discloses when using, earlier arrange patient's oral cavity in with lower tooth protecting sleeve 2 with last tooth protecting sleeve 1 earlier, then correspond and go up the tooth card dress with the patient in first recess 6, clamp patient's lower tooth in second recess 7, place patient's lip of going up in the third recess 8 of last tooth protecting sleeve 1, place patient's lip of going up in the fourth recess 9 of tooth protecting sleeve 2 down, with patient's jaw of going up and down together with last tooth protecting sleeve 1 and lower tooth protecting sleeve 2 separately, then stick up bracing piece 11, and install in second fixed slot 12, thereby separate jaw of going up and down, liberation medical personnel's both hands, the follow-up laryngoscope of being convenient for is put into. In one embodiment, the support rod 11, the first fixing groove 10 and the second fixing groove 12 are located on one side of the lip protector, so that the support rod 11 does not obstruct the laryngoscope from being placed when the medical staff places the laryngoscope. Meanwhile, the lip protecting sleeve and the tooth protecting sleeve are matched with each other, so that the contact between the labial teeth and the laryngoscope lens of a patient can be reduced when the tracheal intubation is performed, and the labial teeth of the patient are effectively protected from being damaged.
Preferably, the upper tooth protecting sleeve 1 and the lower tooth protecting sleeve 2 are both U-shaped, the first groove 6 penetrates through two ends of the upper tooth protecting sleeve 1, and the second groove 7 penetrates through two ends of the lower tooth protecting sleeve 2, so that the tooth protecting sleeve conforms to the arrangement shape of human teeth and can better protect the teeth of a patient. Furthermore, the upper lip protector 3 and the lower lip protector 4 are long-strip-shaped, the third groove 8 penetrates through the two ends of the upper lip protector 3, the fourth groove 9 penetrates through the two ends of the lower lip protector 4, the lip protector is relatively short relative to the tooth protector, the lips of a patient can be effectively protected, the lips of the patient can be conveniently placed in the lip protector, and the two sides of the lips of the patient can be prevented from being damaged.
Preferably, an arc-shaped upper jaw protection plate 13 is arranged on the inner side of the upper tooth protection sleeve 1, the upper jaw protection plate 13 is integrally connected with the inner side edge of the upper tooth protection sleeve 1, and the direction of the upper jaw protection plate 13 is the same as the opening direction of the first groove 6; the inner side of the lower tooth protecting sleeve 2 is provided with an arc-shaped lower jaw protecting plate 14, the lower jaw protecting plate 14 is integrally connected with the inner side edge of the lower tooth protecting sleeve 2, and the direction of the lower jaw protecting plate 14 is the same as the opening direction of the second groove 7. The arc-shaped upper jaw protection plate 13 and the arc-shaped lower jaw protection plate 14 can be sleeved on upper and lower teeth of a patient by the upper tooth protection sleeve 1 and the lower tooth protection sleeve 2, and can effectively protect the upper and lower inner walls of the jaw of the patient after being opened by the supporting rod 11, so that gum and upper and lower inner walls of the jaw are prevented from being crushed when the upper tooth protection sleeve 1 and the lower tooth protection sleeve 2 respectively apply pressure to the upper and lower gums.
Preferably, the bottom surface of the upper lip protector 3 is higher than the bottom surface of the upper tooth protector 1, and the bottom surface of the lower lip protector 4 is lower than the bottom surface of the lower tooth protector 2. Satisfy the lip tooth structure when human mouth opens, and can keep away from patient's tooth with patient's lips, can keep away from the tooth with the lips, avoid the lips to produce when the laryngoscope inserts and hinder.
Preferably, the support rod 11 is a combined rod with adjustable length and includes an inner screw 111 and an outer sleeve 112, the outer side of the inner screw 111 is covered with an external thread, the inner side of the outer sleeve 112 is provided with an internal thread matched with the external thread, the outer sleeve 112 is sleeved on the outer side of the inner screw 111 and is in threaded connection with the inner screw 111, one end of the inner screw 111 far away from the outer sleeve 112 is movably embedded in the first fixing groove 10, and one end of the outer sleeve 112 far away from the inner screw 111 is detachably and fixedly connected with the second fixing groove 12. The fit of inner screw 111 and outer sleeve 112 can effectively adjust the angle at which the upper and lower jaws of the patient separate. When the outer sleeve 112 is completely screwed on the inner screw rod 111, the upper jaw and the lower jaw of the patient can be spread by a minimum angle, if the upper jaw and the lower jaw of the patient need to be spread by a larger angle, only the outer sleeve 112 needs to be unscrewed, and the outer sleeve 112 is withdrawn from the inner screw rod 111 by a corresponding length, because the inner screw rod 111 and the outer sleeve 112 are in spiral connection, the upper tooth guard sleeve 1 and the lower tooth guard sleeve 2 can be prevented from being extruded by a thread occlusion mode, and therefore the supporting height of the supporting rod 11 can be ensured. Wherein, the one end that interior screw 111 pole was fixed in first fixed slot 10 is ball 113, ball 113 and interior screw 111 body coupling, and the diameter of ball 113 is greater than the diameter of interior screw 111, and ball 113 rotationally inlays the dress in first fixed slot 10, and the diameter of ball 113 is greater than the notch diameter of first fixed slot 10, avoids ball 113 to deviate from easily in first fixed slot 10. First fixed slot 10 is equipped with the opening at the side of 2 tip of directional lower tooth protecting bush, when not being suitable for bracing piece 11, can lie interior screw 111 in the opening, and then make bracing piece 11 lie on tooth protecting bush 2 down, be convenient for accomodate.
Preferably, bracing piece 11, first fixed slot 10 and second fixed slot 12 are two, two first fixed slots 10 are integrative setting in the both sides of lower tooth casing 2 respectively, two bracing pieces 11 are movably fixed respectively in two first fixed slots 10, two second fixed slots 12 are integrative setting respectively in the both sides of last tooth casing 1, two first fixed slots 10 and two second fixed slots 12 are the one-to-one respectively, this kind of design, can guarantee that tooth casing 1 and lower tooth casing 2 atress are even, and then tooth or upper and lower gum atress are even about guaranteeing, thereby can protect patient's tooth and gum to avoid leading to the injury because of the atress inequality.
From the above, the utility model discloses a special tooth lip protector of anesthesia, simple structure, convenient to use utilizes tooth sheath and lip sheath to cooperate, can effectively separate the friction between laryngoscope piece and patient's lip of mouth, and then can prevent to be drawn into between laryngoscope piece and the tooth because of the laryngoscope is put into the lip of mouth, causes the damage of lip of mouth, effectively protects patient's lip of mouth; the teeth and the gingiva of a patient can be effectively protected by utilizing the tooth protecting sleeve, and the damage of the laryngoscope lens to the gingiva and the teeth of the patient is avoided; in addition, the setting of bracing piece, can be before carrying out trachea cannula, support the bracing piece at last tooth protecting sleeve under and between the tooth protecting sleeve, the jaw effectively parts about the patient earlier, liberation medical personnel's both hands, the follow-up laryngoscope of being convenient for is put into, and can loosen the outer sleeve according to the operation demand, thereby the length of extension bracing piece, and then can be with the jaw more wide angle that parts about the patient, be convenient for operate, also can reduce because lift the laryngoscope piece that leads to on the laryngoscope and patient go up tooth, go up the contact of gum or upper lip, reduce the laryngoscope and put into the injury to patient's tooth, gum and patient's lip.
The present invention has been described in relation to the above embodiments, which are only examples for implementing the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, all changes and modifications which do not depart from the spirit and scope of the present invention are deemed to fall within the scope of the present invention.

Claims (6)

1. The utility model provides a special tooth lip protector of anesthesia which characterized in that: comprises an upper tooth protecting sleeve, a lower tooth protecting sleeve, an upper lip protecting sleeve and a lower lip protecting sleeve; the upper tooth protecting sleeve and the lower tooth protecting sleeve are oppositely arranged, and two ends of the upper tooth protecting sleeve and the lower tooth protecting sleeve are fixedly connected through a soft traction strip; a first groove is formed in the upper gear guard sleeve, a second groove is formed in the lower gear guard sleeve, and the opening directions of the first groove and the second groove are opposite; the upper lip protecting sleeve is integrally connected to the outer side of the upper tooth protecting sleeve, a third groove is formed in the upper lip protecting sleeve, the opening direction of the third groove is the same as that of the first groove, the lower lip protecting sleeve is integrally connected to the outer side of the lower tooth protecting sleeve, a fourth groove is formed in the lower lip protecting sleeve, and the opening direction of the fourth groove is the same as that of the second groove; the lower lip protecting sleeve is characterized in that a first fixing groove is formed in the side edge of the lower lip protecting sleeve, a movable lifting support rod is arranged in the first fixing groove, and a second fixing groove used for inserting and fixing the support rod is formed in the position, corresponding to the upper tooth protecting sleeve, of the upper tooth protecting sleeve.
2. The special tooth-lip protector for anesthesia of claim 1, wherein: the upper tooth protecting sleeve and the lower tooth protecting sleeve are both U-shaped.
3. The special tooth-lip protector for anesthesia of claim 2, wherein: an arc-shaped upper jaw protection plate is arranged on the inner side of the upper tooth protection sleeve, the upper jaw protection plate is integrally connected with the inner side edge of the upper tooth protection sleeve, and the direction of the upper jaw protection plate is the same as the opening direction of the first groove; the lower tooth protecting sleeve is internally provided with an arc-shaped lower jaw protecting plate, the lower jaw protecting plate is integrally connected with the inner side edge of the lower tooth protecting sleeve, and the direction of the lower jaw protecting plate is the same as the opening direction of the second groove.
4. The special tooth-lip protector for anesthesia of claim 1, wherein: the bottom surface of the upper lip protecting sleeve is higher than the bottom surface of the upper tooth protecting sleeve, and the bottom surface of the lower lip protecting sleeve is lower than the bottom surface of the lower tooth protecting sleeve.
5. The special tooth-lip protector for anesthesia of claim 1, wherein: the utility model discloses a bracing piece, including the bracing piece, the bracing piece is length-adjustable's combination pole and includes interior screw rod and outer sleeve, the interior screw rod outside is covered with the external screw thread, the outer sleeve inboard be equipped with external screw thread fit's internal thread, the outer sleeve suit in the interior screw rod outside and with interior screw rod threaded connection, interior screw rod is kept away from the one end movably of outer sleeve inlays the dress and is in the first fixed slot, the outer sleeve is kept away from the one end of interior screw rod with second fixed slot detachably fixed connection.
6. The special tooth-lip protector for anesthesia of claim 1, wherein: the bracing piece first fixed slot and the second fixed slot is two, two first fixed slot is integrative setting respectively down the both sides of tooth protecting sleeve, two bracing piece movably fixes respectively in two in the first fixed slot, two the second fixed slot is integrative setting respectively the both sides of going up tooth protecting sleeve, two first fixed slot and two the second fixed slot is the one-to-one respectively.
CN201921331681.4U 2019-08-16 2019-08-16 Special tooth lip protector for anesthesia Expired - Fee Related CN210844795U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921331681.4U CN210844795U (en) 2019-08-16 2019-08-16 Special tooth lip protector for anesthesia

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921331681.4U CN210844795U (en) 2019-08-16 2019-08-16 Special tooth lip protector for anesthesia

Publications (1)

Publication Number Publication Date
CN210844795U true CN210844795U (en) 2020-06-26

Family

ID=71282407

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921331681.4U Expired - Fee Related CN210844795U (en) 2019-08-16 2019-08-16 Special tooth lip protector for anesthesia

Country Status (1)

Country Link
CN (1) CN210844795U (en)

Similar Documents

Publication Publication Date Title
US8640692B2 (en) Oropharyngeal device for assisting oral ventilation of a patient
US7044910B2 (en) Modified laryngoscope blade to reduce dental injuries during intubation
KR101463021B1 (en) Oral appliance
CN201930367U (en) Tracheal cannula fixer
US6939134B2 (en) Cheek, lip and tongue shield
CN210844795U (en) Special tooth lip protector for anesthesia
CN219461093U (en) Lip protection mouth gag
CN209863811U (en) Prevent bite-block of oral cavity damage during monitoring of nerve electricity physiology
CN214596075U (en) Tooth extraction guide plate for protecting mental nerve
CN213283140U (en) Novel operation retractor for oral and maxillofacial surgery
CN2870758Y (en) Medical tooth guard
CN205286361U (en) Multi -purpose slotted dipperstick in oral cavity
CN210009483U (en) Mandible support type tracheal catheter fixing device
CN111281580A (en) Gingival retraction device with variable gingival retraction angle
CN208942427U (en) A kind of novel cheek periglottis protective device
CN202920390U (en) Oral clinical tooth preparation dedicated protective tool
CN216535625U (en) Multifunctional lip stopper for oral cavity
CN204260715U (en) The special bite-block of edentulous jaw
CN214860246U (en) Oral cavity protection device for anesthesia intubation
CN216908229U (en) Compound drag hook of adjustable angle of mouth gum
CN213346062U (en) Temporary crown taking device
CN202027627U (en) Tooth-protection mouth opener
CN215535109U (en) Stereoplasm bronchoscope lip tooth protective sheath
CN214679094U (en) Buccal device is worn in department of oral cavity maxillofacial surgery
CN202776615U (en) Multifunctional oral saliva pump

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20200626

Termination date: 20210816

CF01 Termination of patent right due to non-payment of annual fee