Convenient-to-operate soft palate protective sleeve with sleeve guide

Abstract

The invention provides a convenient-to-operate soft palate protective sleeve with sleeve guide, and relates to the technical field of soft palate protective sleeves, the convenient-to-operate soft palate protective sleeve comprises a nasal cavity sling, an oral cavity sling is arranged on the side surface of the nasal cavity sling, and an unfolding mechanism is arranged between the nasal cavity sling and the oral cavity sling; the expansion mechanism is used for expanding the protection sleeve in the oral cavity to protect the soft palate, a sleeve is slidably installed on the surface of the nasal cavity sling and the surface of the supporting mechanism, and a pipeline is arranged in the center of the sleeve. The protective sleeve is guided to sequentially pass through the nasopharynx and the oropharynx and is smoothly led out of the oral cavity by means of the tubular structure, medical staff do not need to repeatedly test and adjust the position, and operation time is greatly shortened.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of soft palate protection sleeves, and more particularly relates to a soft palate protection sleeve with sleeve guide facilitating operation. BACKGROUND

[0002] In head and neck surgery, especially in high-difficulty surgeries such as nasopharynx, oropharynx, parapharyngeal space and skull base region performed through the mouth, obtaining a clear, stable and fully exposed surgical field is the cornerstone of ensuring the accuracy of operation and the success of the final surgery. The operation space is small, the anatomical structure is complex and adjacent to important blood vessels and nerves, so the soft palate often needs to be pulled or suspended during the operation to expand the surgical field and avoid damage to the surrounding tissues by instruments.

[0003] At least the following problems exist in the current soft palate protection sleeve: First, the most commonly used soft palate traction method in the clinic is the "catheter suspension method". This method is simple to operate and low in cost, and is achieved by introducing a catheter through the nasal cavity to the oropharynx, pulling the soft palate and fixing it to the lateral nose. However, this method has many obvious defects: first, the catheter causes continuous local compression of the soft palate mucosa and muscle layer, which easily leads to soft tissue congestion, edema and even ischemia, becoming an important cause of postoperative soft palate motor dysfunction (such as palatal insufficiency, swallowing disorders, open nasal tone, etc.); second, this method lacks an effective isolation and protection mechanism for the uvula, which is easily pulled, squeezed or electrically damaged during surgical operation, and the damage directly leads to long-term functional disorders such as decreased speech clarity and water choking; third, the surgical field exposure provided by the traditional catheter suspension is often insufficient and has poor stability, especially when dealing with deep skull base or lateral pharyngeal lesions, the surgical field has many dead angles and instrument operation is limited, increasing the risk of surgery.

[0004] Second, in order to achieve the effect of protecting the soft palate, the soft palate protection sleeve and the sling are both soft in texture. When the protection sleeve enters the nasal cavity, it is often easy to fold or curl in the nasal cavity, making the process of guiding from the nasal cavity to the oral cavity more cumbersome.

[0005] Third, the existing soft palate protection sleeve has obvious limitations in the deployment mode, either relying on medical staff to manually extend into the oral cavity to adjust the deployment, or only equipped with a simple elastic support component The former requires medical staff to control the deployment amplitude and angle by experience, which has high requirements for operation accuracy, and the deployment is uneven during manual adjustment due to limited vision; the elastic support structure of the latter generally has the problems of insufficient support strength and poor form compatibility, and cannot adaptively adjust according to the physiological differences of individual soft palate, which directly leads to the difficulty of the protection sleeve to form a close fit with the soft palate surface after deployment, and often appears local fit gap, and then forms a protection blind area in the soft palate free edge, uvula root and other key areas vulnerable to damage, and the protection sleeve cannot fully cover the soft palate vulnerable area due to curling, which seriously affects the clinical protection effect. SUMMARY

[0006] In order to solve the above technical problems, the present application provides a soft palate protection sleeve with sleeve guide for easy operation to solve the above problems.

[0007] A soft palate protection sleeve with sleeve guide for easy operation, comprising a nasal suspension band, the nasal suspension band is provided with an oral suspension band on the side, an expansion mechanism is arranged between the nasal suspension band and the oral suspension band, the expansion mechanism is used to expand the protection sleeve in the oral cavity to protect the soft palate, a sleeve is slidably installed on the surface of the support mechanism, and a pipeline is arranged in the center of the sleeve.

[0008] Preferably, the support mechanism comprises a flexible soft palate protection sleeve, the flexible soft palate protection sleeve is located between the nasal suspension band and the oral suspension band, a radial elastic expansion plate is fixedly installed in the flexible soft palate protection sleeve, a plurality of elastic reset plates are fixedly and penetratively installed on the radial elastic expansion plate, the elastic reset plates are arranged in an X shape, a deformation accommodating groove is formed in the elastic reset plate, one end of the elastic reset plate is slidably installed in the deformation accommodating groove, a suspension band fixed groove is fixedly connected to the nasal suspension band, a row of holes is arranged on the suspension band fixed groove, an annular pulling ring is fixedly connected to one end of the suspension band fixed groove, the annular pulling ring is in the shape of a ring, an elastic silica gel fixed ball is fixedly connected to the oral suspension band, and a circular silica gel fixed buckle is arranged on the elastic silica gel fixed ball.

[0009] Compared with the prior art, the present application has the following beneficial effects: In the present application, the sleeve can accommodate the expansion mechanism and the flexible soft palate protection sleeve therein, and guide the protection sleeve to pass through the nasal cavity, nasopharynx, oropharynx and oral cavity in turn, without the need for medical staff to repeatedly try and adjust the position, greatly reducing the operation time.

[0010] In the application, the unfolding mechanism composed of the radial elastic unfolding plate and the elastic reset plate is arranged, the elastic reset plate is arranged in X shape and is provided with a deformation accommodating groove, after the sleeve is pulled out, the elastic reset plate can automatically reset by the characteristics of the medical rebound soft silicone rubber, drives the radial elastic unfolding plate to provide stable radial support, the flexible soft palate protection sleeve can adapt to the length and arc difference of the soft palate of different patients, closely adhere to the surface of the soft palate, eliminate the protection blind area, comprehensively cover the vulnerable area, and the protection effect is obviously improved.

[0011] In the application, the suspension belt fixing groove, the annular pulling ring and the elastic silica gel fixing ball are arranged, the holes on the suspension belt fixing groove can realize multi-gear adjustment by cooperating with the circular silica gel fixing buckle of the elastic silica gel fixing ball, after the medical staff passes the elastic silica gel fixing ball through the annular pulling ring and clamps into the appropriate hole, stable fixation is formed by the silica gel elasticity, the protection sleeve is effectively prevented from moving when the patient swallows, coughs or turns over, frequent re-fixing is not needed, and the workload of the medical staff is reduced.

[0012] In the application, the flexible soft palate protection sleeve with the flexible PU film on the surface and the soft silicone rubber inside is arranged, the flexible PU film can closely adhere to the mucosa inside the oral cavity, the soft silicone rubber material has good softness, hard contact stimulation with the mucosa is avoided, external friction and instrument touching strength can be buffered, the risk of soft palate mucosa damage is further reduced, and the wearing comfort of the patient is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is the overall structure schematic diagram of the application; Figure 2 is the structure schematic diagram of the flexible soft palate protection sleeve of the application; Figure 3 is the structure schematic diagram of the suspension belt fixing groove of the application; Figure 4 is the structure schematic diagram of the elastic reset plate of the application; Figure 5 is the structure schematic diagram of the sleeve of the application.

[0014] In the drawings, the corresponding relationship between the component names and the drawing numbers is as follows: 1, flexible soft palate protection sleeve; 2, nasal cavity suspension belt; 3, oral cavity suspension belt; 5, suspension belt fixing groove; 6, annular pulling ring; 7, elastic silica gel fixing ball; 8, radial elastic unfolding plate; 9, elastic reset plate; 10, deformation accommodating groove; 11, sleeve. DETAILED DESCRIPTION

[0015] The embodiments of the application will be further described in detail below with reference to the drawings and examples. The following examples are used to illustrate the application, but cannot be used to limit the scope of the application.

[0016] Please refer to Figures 1-5The present application provides a soft palate protection sleeve with cannula guidance, which is convenient to operate and comprises a nasal suspension band 2, an oral suspension band 3 arranged on the side of the nasal suspension band 2, and an unfolding mechanism arranged between the nasal suspension band 2 and the oral suspension band 3, which is used to unfold the protection sleeve in the oral cavity to protect the soft palate. The nasal suspension band 2 is slidably arranged on the surface of a supporting mechanism and is provided with a cannula 11 in the center, which is used to accommodate the unfolding mechanism. The cannula 11 can wrap the protection sleeve and guide the soft palate protection sleeve through the nasopharynx, oropharynx, and then out of the oral cavity. After the cannula 11 is pulled out, the supporting mechanism can be automatically expanded and can automatically adapt to the soft palate of the patient to wrap and protect the soft palate of the patient.

[0017] As shown in Figure 1 , Figure 2 and Figure 5 , the supporting mechanism comprises a flexible soft palate protection sleeve 1, the surface of which is a flexible PU film, and the internal material of which is soft silicone rubber. The flexible PU film on the outside of the flexible soft palate protection sleeve 1 can better fit the inside of the oral cavity of the patient. The shape of the flexible soft palate protection sleeve 1 is special, which can better fit the soft palate of the patient. The flexible soft palate protection sleeve 1 is arranged between the nasal suspension band 2 and the oral suspension band 3. A radially elastic unfolding plate 8 is fixedly arranged in the flexible soft palate protection sleeve 1, which is used to provide radial support when the flexible soft palate protection sleeve 1 is unfolded. A plurality of elastic reset plates 9 are fixedly and penetratively arranged on the radially elastic unfolding plate 8. The material of the elastic reset plates 9 is medical resilient soft silicone rubber, which can bend and compress along the directional accommodation space under radial pressure and can quickly recover to the preset arc shape by virtue of the high resilience characteristic. At the same time, the super-soft texture can be flexibly attached to the mucosa to avoid hard contact stimulation. The elastic reset plates 9 are arranged in an X shape. A deformation accommodation groove 10 is arranged on the elastic reset plates 9, which is used to provide a directional accommodation space for the deformation of the elastic reset plates 9 when the supporting mechanism is accommodated in the cannula 11. The deformation accommodation groove 10 can guide the deformation direction of the elastic reset plates 9, control the deformation range, and avoid mutual interference between the plurality of elastic reset plates 9. One end of the elastic reset plates 9 is slidably arranged in the deformation accommodation groove 10. When the flexible soft palate protection sleeve 1 is folded and extruded, the elastic reset plates 9 in the flexible soft palate protection sleeve 1 elastically bend and compress under the action of radial pressure. The deformation accommodation groove 10 guides the deformation direction of the elastic reset plates 9 and accurately controls the deformation range, and can also avoid mutual interference between the plurality of elastic reset plates 9. The flexible soft palate protection sleeve 1 is driven to complete the size adjustment of the width reduction and length increase, so as to ensure that it is smoothly accommodated in the cannula 11 and closely attached to the inner wall of the cannula 11.

[0018] As shown in Figure 1 , Figure 3 and Figure 5As shown, the nasal suspension band 2 is fixedly connected with a suspension band fixing groove 5, a row of holes are arranged on the suspension band fixing groove 5, the suspension band fixing groove 5 is used to assist the fixation of the flexible soft palate protective sleeve 1 after the flexible soft palate protective sleeve 1 is unfolded at the soft palate position of the patient, one end of the suspension band fixing groove 5 is fixedly connected with a ring-shaped pulling ring 6, the ring-shaped pulling ring 6 is in the shape of a ring, and the maximum diameter is slightly larger than the diameter of the pipe opening of the sleeve pipe 11, so that when the sleeve pipe 11 leads the flexible soft palate protective sleeve 1 out of the cavity of the patient, the medical staff can more conveniently pull out the sleeve pipe 11 by pinching the ring-shaped pulling ring 6, when the sleeve pipe 11 is pulled out, the elastic reset plate 9 in the flexible soft palate protective sleeve 1 loses the external extrusion force, and the elastic reset plate 9 restores from the bent state to the unfolded state by relying on the elasticity of the material itself, drives the flexible soft palate protective sleeve 1 to unfold and wrap the soft palate, the oral suspension band 3 is fixedly connected with an elastic silica gel fixing ball 7, the elastic silica gel fixing ball 7 has a circular silica gel fixing buckle, the silica gel fixing buckle on the elastic silica gel fixing ball 7 can pass through the middle of the ring-shaped pulling ring 6, and the fixing buckle on the elastic silica gel fixing ball 7 can be fixed in the hole on the suspension band fixing groove 5 by relying on the elastic characteristics of the silica gel, when the sleeve pipe 11 is pulled out, the elastic silica gel fixing ball 7 is exposed, the medical staff can pass the elastic silica gel fixing ball 7 through the middle of the ring-shaped pulling ring 6, select a suitable fixing hole on the suspension band fixing groove 5, and clamp the elastic silica gel fixing ball 7 in the fixing hole, so that the flexible soft palate protective sleeve 1 can be fixed at the soft palate position of the patient under the action of the elasticity of the silica gel.

[0019] The flexible soft palate protective sleeve 1 is a main component for directly wrapping and protecting the soft palate of the patient, is installed between the nasal suspension band 2 and the oral suspension band 3, and is a core device for realizing physical protection of the soft palate; the surface is a flexible PU film that can closely adhere to the inside of the oral cavity of the patient, the inside is made of soft silica rubber, and the whole is designed in a special shape to accurately adapt to the contour of the soft palate; a radial elastic unfolding plate 8 is fixedly installed inside and can be unfolded under the driving of the elastic reset plate 9, so as to avoid hard contact with the mucosa and stimulate the mucosa, and realize overall wrapping and protection of the soft palate.

[0020] The nasal suspension band 2 is a structure for providing nasal cavity end positioning and support of the device, is connected with the oral suspension band 3 on one side, and is slidably installed with the sleeve pipe 11 on the surface and the support mechanism, so as to be a sliding carrier of the sleeve pipe 11; the suspension band fixing groove 5 is fixedly connected on the top, and one end of the suspension band fixing groove 5 is fixedly connected with the ring-shaped pulling ring 6; the nasal suspension band 2 can cooperate with the oral suspension band 3 to support the flexible soft palate protective sleeve 1 and the unfolding mechanism, lay a foundation for overall positioning of the device, and bear and fix related components to ensure stable installation of the protective sleeve.

[0021] Oral suspension band 3: the core function is to support and assist fixation with nasal suspension band 2, one side is connected with nasal suspension band 2, and the other side is a flexible soft palate protective sleeve 1 and an unfolding mechanism support carrier; an elastic silica gel fixing ball 7 is fixedly connected above, can be matched with a ring-shaped pulling ring 6 and a suspension band fixing groove 5 through the elastic silica gel fixing ball 7; the protective sleeve is aligned with the soft palate position together with the nasal suspension band 2, and the final fixation of the protective sleeve is realized with the aid of the elastic silica gel fixing ball 7, and the overall structural stability is enhanced.

[0022] Suspension band fixing groove 5: the core function is to assist in fixing the flexible soft palate protective sleeve 1, which is fixedly installed on the nasal suspension band 2 and is a fixing carrier of the elastic silica gel fixing ball 7; a row of holes are arranged on the suspension band fixing groove 5, which can be matched with the round silica gel fixing buckle on the elastic silica gel fixing ball 7; after the protective sleeve is unfolded, the flexible soft palate protective sleeve 1 is stably fixed at the soft palate position in the mode that the fixing buckle is clamped into the hole, the protective sleeve is prevented from being displaced, and the fixing effect is further enhanced.

[0023] Ring-shaped pulling ring 6: the core function is to assist in extracting the sleeve pipe 11 and providing a fixing channel, which is fixedly connected to one end of the suspension band fixing groove 5, is in a circular ring shape, and has a maximum diameter slightly larger than the pipe opening diameter of the sleeve pipe 11; on one hand, the ring-shaped pulling ring 6 is pinched by medical staff to slowly extract the sleeve pipe 11 and can prevent the sleeve pipe 11 from falling off, and on the other hand, the silica gel fixing buckle of the elastic silica gel fixing ball 7 passes through; the ring-shaped pulling ring 6 is a key auxiliary component for the sleeve pipe extraction operation, and provides a channel for the cooperation of the elastic silica gel fixing ball 7 and the suspension band fixing groove 5.

[0024] Elastic silica gel fixing ball 7: the core function is to realize the firm fixation of the flexible soft palate protective sleeve 1, which is fixedly connected to the oral suspension band 3 and is provided with a round silica gel fixing buckle; the elastic silica gel fixing ball 7 can pass through the center of the circular ring of the ring-shaped pulling ring 6, and then the fixing buckle is clamped into a suitable hole of the suspension band fixing groove 5 according to the soft palate fitting condition; the fixing buckle is stably clamped in the hole by relying on the elastic characteristics of the silica gel, so that the flexible soft palate protective sleeve 1 is firmly fixed at the soft palate position of the patient, and the fitting is ensured to be not loose.

[0025] Radial elastic unfolding plate 8: the core function is to provide radial support for the unfolding of the flexible soft palate protective sleeve 1, which is fixedly installed inside the flexible soft palate protective sleeve 1 and is a mounting carrier of the elastic reset plate 9; a plurality of elastic reset plates 9 arranged in an X shape are fixedly and penetratively installed on the radial elastic unfolding plate 8; when the elastic reset plate 9 is restored from the bent state, radial support force can be provided, so that the flexible soft palate protective sleeve 1 can maintain the shape of adhering to the soft palate after unfolding, collapse is avoided due to no support, and the protection effect is ensured.

[0026] Elastic reset plate 9: the core function is to drive the automatic unfolding of the flexible soft palate protection sleeve 1, the material is medical resilient soft silicone rubber, arranged in X shape and fixed through the radial elastic unfolding plate 8, and the deformation accommodating groove 10 is arranged on it; When stored, it is bent and compressed along the deformation accommodating groove 10 under the action of radial pressure, loses external extrusion force after the sleeve 11 is pulled out, and restores to the unfolded state by virtue of its high resilience characteristics; It can drive the flexible soft palate protection sleeve 1 to unfold, and the super-soft texture can be flexibly attached to the mucosa to avoid irritation, and can also adapt to the soft palate contour of the patient.

[0027] Deformation accommodating groove 10: the core function is to guide the deformation of the elastic reset plate 9 and avoid interference, which is arranged on the elastic reset plate 9 and is a directional accommodation space for the deformation of the elastic reset plate 9; When the support mechanism is stored in the sleeve 11, it can guide the deformation direction of the elastic reset plate 9 and accurately control the deformation range; At the same time, it can avoid mutual interference between multiple elastic reset plates 9, ensure the smooth deformation of the elastic reset plate 9, drive the flexible soft palate protection sleeve 1 to complete the size adjustment of "reducing width and increasing length", so as to be smoothly stored in the sleeve 11.

[0028] Sleeve 11: the core function is to store the unfolding mechanism and guide the installation of the protection sleeve, which is slidably installed on the surface of the nasal cavity suspension belt 2 and the support mechanism, and has a central pipe; It can wrap the folded flexible soft palate protection sleeve 1 and the unfolding mechanism (including radial elastic unfolding plate 8 and elastic reset plate 9), guide it to pass through nasopharynx, oropharynx in turn, and finally guide it out of the patient's oral cavity, so that the protection sleeve is in the preset position close to the soft palate; After pulling out, it can release the unfolding mechanism to make it automatically expand, and the central pipe can also be used as a spare (such as checking the patency), which is the core component for guiding and storing during the installation of the protection sleeve.

[0029] Working principle: Firstly, the flexible soft palate protection sleeve 1 and the internal unfolding mechanism (including radial elastic unfolding plate 8 and elastic reset plate 9) are folded and extruded, at this time the elastic reset plate 9 is elastically bent and compressed under the action of radial pressure, the deformation accommodating groove 10 guides the deformation direction of the elastic reset plate 9 and controls the deformation range, at the same time avoids mutual interference between multiple elastic reset plates 9, drives the flexible soft palate protection sleeve 1 to complete the size adjustment of "reducing width and increasing length", until it can smoothly enter the sleeve 11 and tightly fit with the inner wall of the sleeve 11, and the storage of the unfolding mechanism is completed.

[0030] Secondly, the medical staff holds the sleeve 11 and slowly sends the sleeve 11 with the stored flexible soft palate protection sleeve 1 into the patient's body, so that the sleeve 11 with the flexible soft palate protection sleeve 1 passes through the nasopharynx and oropharynx in turn, and finally guides out of the patient's oral cavity, so that the flexible soft palate protection sleeve 1 is in the preset position close to the soft palate.

[0031] Third step, the medical staff pinch the annular pull ring 6 fixedly connected on the nasal suspension band 2 (the annular pull ring 6 is slightly larger than the pipe orifice diameter of the sleeve 11 at the maximum, which can prevent the sleeve 11 from falling off), slowly pull the sleeve 11 out of the patient's oral cavity to the outside; as the sleeve 11 is pulled out, the elastic reset plate 9 in the flexible soft palate protection sleeve 1 loses the extrusion force of the inner wall of the sleeve 11, and with the high elastic recovery characteristics of the medical elastic soft silicone rubber, it recovers from the bent compression state to the preset expanded state, while the radial elastic expansion plate 8 provides radial support, so that the flexible soft palate protection sleeve 1 (surface flexible PU film, internal soft silicone rubber) naturally expands and preliminarily adheres to the patient's soft palate.

[0032] Fourth step, after the sleeve 11 is completely pulled out, the elastic silicone fixing ball 7 fixedly connected on the oral suspension band 3 is exposed, and the medical staff aligns and penetrates the circular silicone fixing buckle on the elastic silicone fixing ball 7 through the center of the annular pull ring 6, so as to prepare for subsequent fixation.

[0033] Fifth step, according to the actual adhesion of the patient's soft palate, the medical staff selects a hole in the suspension band fixing groove 5 on the nasal suspension band 2 that can stably adhere the flexible soft palate protection sleeve 1 to the soft palate, and inserts the silicone fixing buckle of the elastic silicone fixing ball 7 into the hole; relying on the elastic characteristics of the silicone, the elastic silicone fixing ball 7 and the suspension band fixing groove 5 form a stable connection, and the suspension band fixing groove 5 assists to enhance the fixing effect, so as to firmly fix the flexible soft palate protection sleeve 1 on the patient's soft palate.

[0034] Sixth step, the medical staff checks whether the flexible soft palate protection sleeve 1 completely wraps the patient's soft palate and whether the surface flexible PU film tightly adheres to the inside of the oral cavity; confirms that the radial elastic expansion plate 8 is stably supported and the elastic reset plate 9 has no abnormal deformation; if the pipeline in the center of the sleeve 11 needs to be used, the pipeline needs to be checked for patency, and finally the installation of the soft palate protection sleeve is completed, and the protection function of the soft palate is realized.

[0035] Embodiments of the present application are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the application to the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. Embodiments are chosen and described in order to best explain the principles of the application and its practical application, and to enable others skilled in the art to understand the application for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A user-friendly soft palate protector with a cannula for guidance, comprising a nasal suspension band (2), characterized in that: The nasal suspension band (2) has an oral suspension band (3) on its side. An unfolding mechanism is provided between the nasal suspension band (2) and the oral suspension band (3). The unfolding mechanism is used to extend the protective sleeve in the oral cavity to protect the soft palate. A sleeve (11) is slidably installed on the surface of the nasal suspension band (2) and the support mechanism. A pipe is provided in the center of the sleeve (11).

2. The easy-to-operate soft palate protective sleeve with a guide tube as described in claim 1, characterized in that, The support mechanism includes a flexible soft palate protective sleeve (1).

3. The easy-to-operate soft palate protective sleeve with a guide tube as described in claim 2, characterized in that, The flexible soft palate protector (1) is located between the nasal suspension band (2) and the oral suspension band (3).

4. The easy-to-operate soft palate protective sleeve with a cannula as described in claim 3, characterized in that, The flexible soft palate protective sleeve (1) is internally fixed with a radial elastic unfolding plate (8).

5. The easy-to-operate soft palate protective sleeve with a cannula as described in claim 4, characterized in that, Several elastic reset plates (9) are fixedly installed through the radial elastic unfolding plate (8), and the elastic reset plates (9) are arranged in an X-shape.

6. The easy-to-operate soft palate protective sleeve with a cannula as described in claim 5, characterized in that, The elastic reset plate (9) is provided with a deformation receiving groove (10), and one end of the elastic reset plate (9) is slidably installed in the deformation receiving groove (10).

7. The easy-to-operate soft palate protective sleeve with a guide tube as described in claim 6, characterized in that, The nasal suspension band (2) is fixedly connected to a suspension band fixing groove (5).

8. The easy-to-operate soft palate protective sleeve with a cannula as described in claim 7, characterized in that, The suspension belt fixing groove (5) is provided with a row of holes, and an annular pull ring (6) is fixedly connected to one end of the suspension belt fixing groove (5).

9. The easy-to-operate soft palate protective sleeve with a cannula as described in claim 8, characterized in that, The annular pull ring (6) is circular in shape, and an elastic silicone fixing ball (7) is fixedly connected to the oral cavity suspension (3).

10. The easy-to-operate soft palate protective sleeve with a cannula as described in claim 9, characterized in that, The elastic silicone fixing ball (7) is provided with a circular silicone fixing buckle.

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