Oral isolation device

Abstract

The present invention discloses an oral isolation device, comprising a vestibular partition and a lip expansion plate; the vestibular partition is adapted to the dentition of a human body, and the connecting end of the lip expansion plate is connected to the vestibular partition; the lip expansion plate is arranged in an arched shape along the length direction, and the lip expansion plate is adapted to the inner side of the lips of a human body; when in use, the lip expansion plate and the vestibular partition are in front-to-back position correspondence, so that the dentition of a human body is located behind the vestibular partition, the lip expansion plate is located on the inner side of the lips, and the lip expansion plate contacts the lips and buccal mucosa of the human body, so that the lip expansion plate opens the lips of the human body into an arched shape consistent with the lip expansion plate; the lip expansion plate, the vestibular partition and the lower lip constitute an independent vestibular space. The present invention avoids the contact between the surgical area and the contaminated area, and greatly reduces the chance of postoperative effusion and infection of the soft tissue in the surgical area.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an oral cavity isolation device. Background Art

[0002] Thyroid nodules are common general surgical diseases, and they are more common in young women. Traditional open thyroidectomy has a history of more than 100 years and is a safe and recognized effective surgical method for treating thyroid diseases. However, the high-risk population for thyroid nodules is women. The use of traditional surgical methods will leave a surgical scar of about 6cm-8cm on the patient's neck, and neck discomfort and paresthesia will occur after the operation, which will undoubtedly bring a huge psychological burden to the patient.

[0003] Since Gagner et al. performed the world's first laparoscopic parathyroidectomy in 1996, laparoscopic technology has been used in the surgical treatment of thyroid diseases for nearly 20 years. In 2012, Wang Cunchuan of China performed the first transoral vestibular thyroid surgery, bringing laparoscopic thyroid surgery into the era of completely scar-free transoral endoscopic surgery (NOTES). Oral vestibular thyroid surgery is performed on the inner lip mucosa of the lower lip. Compared with other non-complete transoral vestibular endoscopic thyroidectomies, complete transoral vestibular endoscopic thyroidectomy not only has the general advantages of endoscopic thyroid surgery, but also achieves the following: (1) The oral incisions are covered by oral mucosa, healing quickly after surgery, and no scars are left on the body surface; (2) The viewing angle is from the head to the feet, which is convenient for the clearance of central lymph nodes; (3) The surgical trauma is small. However, due to the particularity of the oral microbial environment, this surgical procedure changes the traditional Class I incision of thyroid surgery into a Class II incision, while the dentition, jaw, lips and buccal mucosa are in an open state. The saliva produced in the oral cavity can easily pass through the teeth, gums, lips and buccal mucosa to the surgical area on the inner side of the lower lip, causing postoperative fluid accumulation and wound infection. At the same time, due to the special structure of oral bacteria and the loose structure of the neck, once soft tissue infection occurs in the surgical area, it is very easy to form extensive cellulitis, with serious consequences and even life-threatening, which seriously limits the development of this surgery. Summary of the invention

[0004] In view of the above problems, the present invention proposes an oral isolation device, which avoids the contact between the surgical area and the contaminated area, greatly reducing the chance of postoperative effusion and infection of the soft tissue in the surgical area.

[0005] The present invention provides an oral isolation device, comprising a vestibular partition and a lip expander; the vestibular partition is adapted to the dentition of a human body, and the connecting end of the lip expander is connected to the vestibular partition; the lip expander is arranged in an arch shape along the length direction, and the lip expander is adapted to the inner side of the lips of a human body; when in use, the lip expander and the vestibular partition are in front-to-back position correspondence, so that the dentition of a human body is located behind the vestibular partition, the lip expander is located on the inner side of the lips, and the lip expander contacts the lips and cheek mucosa of the human body, so that the lip expander opens the lips of the human body into an arch shape consistent with the lip expander; the lip expander, the vestibular partition and the lower lip constitute an independent vestibular space.

[0006] Preferably, the upper end of the expanded lip plate is provided with an outward flange.

[0007] Preferably, the connection between the upper end of the expanded lip plate and the flange is in an arc transition.

[0008] Preferably, the vestibule partition is in an outwardly convex arc shape.

[0009] Preferably, the vestibule septum is in an arc shape, the upper end of the lip expansion plate is also in an arc shape, and the upper end of the arc shape of the lip expansion plate is coaxial with the arc shape of the vestibule septum.

[0010] Preferably, both ends of the vestibule diaphragm are in an arc shape or a circular arc shape.

[0011] Preferably, the distance between the two ends of the arch of the lip expansion plate is recorded as d, which is 50mm-80mm; the width of the lip expansion plate is recorded as b, which is 30mm-50mm; the height of the lip expansion plate is recorded as h, which is 15mm-30mm.

[0012] Preferably, the length of the vestibular septum is 60mm-100mm, and the width of the vestibular septum is 40mm-60mm.

[0013] Preferably, the cross section of the contact end surface of the lip expansion plate close to the upper lip along the length direction of the lip expansion plate is concave.

[0014] The present invention has the following beneficial effects:

[0015] 1. Based on the theoretical basis of the potential gap between the oral vestibule lip mucosa and the dentition, the vestibule septum is placed in front of the dentition, and the lip expander is fitted on the inner side of the lips, so that the lip expander, the vestibule septum and the lower lip form an independent vestibule space. The vestibule septum and the lip expander can artificially form a physical barrier in the oral vestibule. This physical barrier can effectively isolate the contaminated areas of the dentition, upper lip and buccal mucosa, so that the surgical area inside the lower lip forms an independent vestibule space, thereby avoiding contact between the surgical area and the contaminated area, greatly reducing the chance of postoperative effusion and soft tissue infection in the surgical area;

[0016] 2. The arched design of the lip expander makes the shape of the lip expander consistent with the contour of the lips when they are opened. When the lip expander is placed on the inner side of the lips, self-anchoring is formed between the lip expander and the lips, thereby stably fixing the vestibular septum and the lip expander in the oral vestibule, avoiding bacterial contamination of the surgical area caused by displacement of the vestibular septum due to operation during surgery; at the same time, the flange design of the lip expander makes the inner side of the lips and cheeks better fit with the lip expander, thereby improving the stability of the self-anchoring between the lip expander and the lips. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is one of the structural diagrams of this embodiment;

[0018] Figure 2 This is the second structural diagram of this embodiment;

[0019] Figure 3 for Figure 1 The main view;

[0020] Figure 4 for Figure 1 A top view of

[0021] Reference numerals:

[0022] 1- vestibule partition, 2- lip expansion plate, 21- flange. DETAILED DESCRIPTION

[0023] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0024] like Figures 1 to 4 As shown, the present embodiment provides an oral isolation device, comprising a vestibular partition 1 and a lip expander 2; the vestibular partition 1 is adapted to the human dentition, and the connecting end of the lip expander 2 is connected to the vestibular partition 1; the lip expander 2 is arranged in an arch shape along the length direction, and the lip expander 2 is adapted to the inner side of the lips of the human body; when in use, the lip expander 2 and the vestibular partition 1 correspond in front and back positions, so that the human dentition is located behind the vestibular partition 1, the lip expander 2 is located on the inner side of the lips, and the lip expander 2 contacts the lips and buccal mucosa of the human body, so that the lip expander 2 opens the lips of the human body into an arch shape consistent with the lip expander 2; the lip expander 2, the vestibular partition 1 and the lower lip constitute an independent vestibular space. The diagram of the oral isolation device in use, such as Figure 2 shown.

[0025] In order to prevent the corners of the two ends of the vestibular septum 1 from scratching the inner wall of the human oral cavity, the two ends of the vestibular septum 1 are both in an arc shape or a circular arc shape, which improves the patient's experience. Moreover, the vestibular septum 1 is in an outward convex arc shape, and the shape design of the vestibular septum 1 corresponds exactly to the shape of the human dentition, which is convenient for the patient to achieve effective contact between the vestibular septum 1 and the dentition during surgery. As another embodiment, the vestibular septum 1 is in an arc shape, and the upper end of the lip expander 2 is also in an arc shape, and the upper end of the arc shape of the lip expander 2 is coaxial with the arc shape of the vestibular septum 1 The arc shape design of the upper ends of the vestibular septum 1 and the lip expander 2 is more compatible with the corresponding fitting position in the human oral cavity, which improves the patient's comfort when using it.

[0026] In addition, the upper end of the lip expansion plate 2 is provided with an outward flange 21, so that the inner side of the lip is better adapted to the lip expansion plate 2, thereby improving the stability of the self-anchoring between the lip expansion plate 2 and the lip. The connection between the upper end of the lip expansion plate 2 and the flange 21 is in an arc transition, eliminating the phenomenon of sharp corners at the connection between the lip expansion plate 2 and the flange 21, and improving the comfort of the patient's lip inner wall and the lip expansion plate 2 when in contact. At the same time, the cross-section of the contact end surface of the lip expansion plate 2 close to the upper lip along the length direction of the lip expansion plate 2 is concave. When the lips contact the lip expansion plate 2, the lips automatically slide into the concave part of the lip expansion plate 2, which is convenient for automatically adjusting the relative position of the lip expansion plate 2 in the oral cavity through the lips, and at the same time, it is convenient to achieve the self-anchoring effect between the lips and the lip expansion plate 2.

[0027] Specifically, the distance between the two ends of the arch of the lip expander 2 is recorded as d, and d is 50mm-80mm; the width of the lip expander 2 is recorded as b, and b is 30mm-50mm; the height of the lip expander 2 is recorded as h, and h is 15mm-30mm. The length of the vestibular septum 1 is 60mm-100mm, and the width of the vestibular septum 1 is 30mm-60mm. The size design of the vestibular septum 1 and the lip expander 2 makes the vestibular septum 1 and the lip expander 2 more suitable for the human oral vestibule.

[0028] In summary, according to the theoretical basis of the potential gap between the oral vestibule lip mucosa and the dentition, the vestibular partition 1 is placed in front of the dentition, and the lip expander 2 is fitted on the inner side of the lips, so that the lip expander 2, the vestibular partition and the lower lip form an independent vestibule space, that is, the vestibular partition 1 and the lip expander 2 can artificially construct a physical barrier in the oral vestibule, which can effectively isolate the contaminated areas of the dentition, upper lip and buccal mucosa, so that the surgical area on the inner side of the lower lip forms an independent space, thereby avoiding the contact between the surgical area and the contaminated area, and greatly reducing the postoperative effusion and the surgical area. The chance of soft tissue infection; at the same time, the arched design of the lip expander 2 makes the shape of the lip expander 2 consistent with the contour of the lips when they are opened. When the lip expander 2 is placed on the inner side of the lips, self-anchoring is formed between the lip expander 2 and the lips, thereby stably fixing the vestibular septum 1 and the lip expander 2 in the oral vestibule, avoiding bacterial contamination of the surgical area caused by the displacement of the vestibular septum 1 due to operation during surgery; at the same time, the flange design of the lip expander 2 makes the inner side of the lips and cheeks better fit with the lip expander 2, thereby improving the stability of the self-anchoring between the lip expander 2 and the upper lip.

[0029] It is worth mentioning that the oral cavity is the starting part of the digestive tract. It is connected to the outside world through the fissure in front and connected to the pharynx through the pharyngeal isthmus in the back. There are organs such as teeth and tongue in the oral cavity. The front wall of the oral cavity is the lips, the side wall is the cheek, the top is the palate, and the floor of the oral cavity is the mucosa and muscle structures. The oral cavity is divided into the oral vestibule in the anterior and lateral part and the oral cavity proper in the posterior and medial part by the upper and lower dental arches. The oral vestibule is located between the lips, cheeks, teeth and gums. When the upper and lower teeth are occluded and the lips are closed, the oral vestibule is a horseshoe-shaped potential cavity, which is connected to the proper oral cavity through the gap between the last molar and the ascending ramus of the mandible.

[0030] The aforementioned oral isolation device is a surgical instrument developed based on the theoretical basis of the potential gap between the oral vestibule lip mucosa and the dentition and the clinical experience of routine surgical disinfection and draping. It solves the clinical problem of the intraoperative communication between the oral vestibule and the proper oral cavity, so that the posterior boundary of the oral vestibule surgical area is changed from the proper oral cavity (structures such as the dentition, jaw, pharynx, etc.) to the base formed by the vestibule partition 1. The surgical area is further limited to the lip mucosa area of ​​the lower lip about 6 cm long by the lip expansion plate 2, effectively physically isolating the oral vestibule from the proper oral cavity, thereby artificially constructing the oral vestibule into an independent space, avoiding contact between the surgical area and the contaminated area, and transforming the oral vestibule surgery from a Class II incision to a Class I incision surgery. In medicine, the first type of incision refers to clean incisions, where the surgery does not enter the inflammation area, the respiratory, digestive and urogenital tracts, and closed trauma surgery that meets the above conditions; the second type of incision refers to clean-contaminated incisions, where the surgery enters the respiratory, digestive or urogenital tracts but without obvious contamination, such as non-infected and successfully completed biliary tract, gastrointestinal tract, vaginal and oropharyngeal surgery; the third type of incision refers to contaminated incisions, fresh open trauma surgery, surgery into the acute inflammation but not suppurative area, gastrointestinal contents with obvious overflow contamination, and obvious defects in intraoperative aseptic technique; the fourth type of incision refers to dirty-infected incisions, old trauma surgery with devitalized tissue, and surgery with clinical infection or organ perforation. According to statistics, the infection rate of clean incisions is 1%. It can be seen that the application of vestibular septum 1 and lip expansion plate 2 in transoral vestibular endoscopic thyroidectomy will bring great benefits to patients.

[0031] The surgical incisions of transoral vestibular thyroid surgery are concentrated on the inferior vestibule groove and the lower lip mucosa. The vestibule and the proper oral cavity are separated by the vestibule septum 1 and the lip expander 2, thereby avoiding repeated contact between surgical instruments and the dentition and mucosal tissue in the proper oral cavity during the operation, greatly reducing the chance of oral bacteria migrating into the cervical surgical cavity through surgical instruments, effectively avoiding postoperative cervical soft tissue infection, reducing surgical complications, and also reducing patients' hospitalization time and medical expenses. At the same time, the successful application of the vestibule septum 1 and the lip expander 2 has enabled transoral vestibular thyroid surgery (NOTE) to break through the original limitations that may cause infection, making transoral vestibule thyroid surgery a truly safe, effective and completely scar-free operation, allowing more patients to apply this operation.

[0032] In addition, regarding oral disinfection technology, both oral and maxillofacial surgery departments at home and abroad treat the oral cavity as a whole for intraoral postoperative disinfection, and use 1% povidone-iodine solution and 0.25% chlorhexidine solution for disinfection and soaking to disinfect the surgical area. At the same time, there are significant differences in the colony counts in different parts of the oral cavity, and the number of bacteria in periodontal and dental plaque can be hundreds of times the number of bacteria in mucosal tissue. However, by applying the vestibule partition 1 and the lip expansion plate 2 in oral vestibule surgery, it is convenient to separate the oral vestibule and the proper oral cavity during the operation, and disinfect the surgical area, avoiding the entire oral cavity as the object of postoperative disinfection, avoiding the disinfection of the dentition outside the area containing a large number of bacteria, thereby avoiding the situation of a large number of infections in the oral cavity after surgery, and greatly reducing postoperative complications and surgical risks.

[0033] It should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features thereof may be replaced by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. An oral isolation device, characterized in that: Includes vestibular partition and lip expansion plate; The vestibular septum is adapted to the dentition of a human body, and the connecting end of the lip expansion plate is connected to the vestibular septum; The lip expansion plate is arranged in an arched shape along the length direction, and the lip expansion plate is adapted to the inner side of the lips of the human body; When in use, the lip expander and the vestibular septum are in front-to-back position corresponding to each other, so that the human dentition is located behind the vestibular septum, the lip expander is located inside the lips, and the lip expander contacts the human lips and buccal mucosa, so that the lip expander opens the human lips into an arch shape consistent with the lip expander; the lip expander, the vestibular septum and the lower lip form an independent vestibular space; The upper end of the lip expansion plate is provided with an outward flange; The vestibule septum is in an arc shape, and the upper end of the lip expansion plate is also in an arc shape, and the upper end of the arc shape of the lip expansion plate is coaxial with the arc shape of the vestibule septum.

2. The oral cavity isolation device according to claim 1, characterized in that: The connection between the upper end of the lip expansion plate and the flange is in an arc transition.

3. The oral cavity isolation device according to claim 1, characterized in that: The vestibule partition is in an outwardly convex arc shape.

4. The oral cavity isolation device according to claim 1, characterized in that: Both ends of the vestibule partition are in arc shape.

5. The oral cavity isolation device according to claim 1, characterized in that: Both ends of the vestibule partition are in arc shape.

6. The oral cavity isolation device according to claim 1, characterized in that: The distance between the two ends of the arch of the lip expansion plate is recorded as d, which is 50mm-80mm; the width of the lip expansion plate is recorded as b, which is 30mm-50mm; the height of the lip expansion plate is recorded as h, which is 15mm-30mm.

7. The oral cavity isolation device according to claim 1, characterized in that: The length of the vestibule septum is 60mm-100mm, and the width of the vestibule septum is 40mm-60mm.

8. The oral cavity isolation device according to any one of claims 1 to 7, characterized in that: The cross section of the contact end surface of the lip expansion plate close to the upper lip along the length direction of the lip expansion plate is concave.

Images