Disposable oral clinic instrument adapter port sealing sleeve

Abstract

This invention discloses a disposable dental instrument adapter sealing sleeve, comprising an integrally molded sealing sleeve body with a double-opening tubular structure, and sequentially including a tip narrowing section, a main body, and a reinforcing ring along the axial direction. The tip narrowing section features a tip opening, a double-layer latex composite cuff, a native latex band, an anti-backflow step, and a color-coded warning strip for infectious disease risks. The main body features a double-ring gradient anti-slip locking texture, a gradient friction surface, a stepped powder coating area, a three-way gun adaptive buffer module, and a miniature anti-displacement protrusion ring. The reinforcing ring features a thickened micro-flanged edge, a built-in stress buffer layer, and a micro-cut easy-tear opening. This sealing sleeve is compatible with dental handpieces, light-curing lamp handles, headlamp handles, three-way gun tips, saliva suction tube adapters, and other dental instruments, providing sealing against backflow, preventing displacement, preventing secondary contamination, providing color-coded warnings for infectious diseases, facilitating aseptic lifting and positioning, and enabling quick tearing.

Description

Technical Field

[0001] This invention belongs to the field of oral medical consumables technology, specifically relating to disposable dental instrument adapter sealing sleeves, and more particularly to a disposable protective sealing sleeve for various instrument adapters of dental clinic comprehensive treatment chairs. It can be adapted to frequently used instruments such as dental handpieces, light-curing lamp handles, headlamp handles, three-way gun tips, and saliva suction tube adapters. It can be extended to dental scanners, periodontal ultrasonic scalers, and other similar application scenarios in dental clinics where there is a risk of cross-infection due to frequent contact with patients. Background Technology

[0002] During dental outpatient treatment, instruments such as dental handpieces, headlamp handles, UV-curing lamp handles, three-way nozzles, and saliva suction adapters are frequently used and come into direct or indirect contact with patients' saliva, blood, and oral secretions. The adapters, grips, and joints of these instruments are easily contaminated by pathogens such as hepatitis B virus, hepatitis C virus, HIV, Treponema pallidum, Helicobacter pylori, periodontal pathogens, and Staphylococcus aureus, becoming potential routes of cross-infection in dental outpatient clinics. Currently, in clinical practice, patients in dental outpatient clinics commonly conceal their history of infectious diseases. Existing electronic medical record systems lack pop-up warnings regarding infectious disease risks, preventing healthcare workers from promptly identifying potential infection risks in patients. Therefore, there is a serious risk of occupational exposure and cross-infection.

[0003] Currently, dental clinics use relatively rudimentary protective measures for the aforementioned instrument adapters, mainly including the following:

[0004] The first method is the traditional temporary wrapping method, such as using aluminum foil, ordinary sealing film, or the inner packaging paper of sterile surgical gloves to wrap the instrument interface or grip section. This method is cumbersome, time-consuming and labor-intensive, and it is difficult to achieve a seamless fit with the instrument surface. It is easy to fall off or break, and the protective effect is limited. In addition, it may also involve tearing the medical tubing during the application and removal process.

[0005] The second type is existing simple protective products, such as latex glove finger sleeves and ordinary PE (polyethylene) protective sleeves as temporary protective sleeves. These products lack elasticity and adaptability, making it difficult to simultaneously adapt to dental handpieces, headlamp handles, UV-curing lamp handles, three-way gun tips, saliva suction tube adapters, and other dental instruments of different diameters and structures. Some products are also prone to sticking to the surface of instruments, making it inconvenient to put on and take off.

[0006] The third method is the clinical emergency wiping method, which involves wiping the surface of the instrument once per patient. This method increases the workload of medical staff and is difficult to completely remove pathogens from the instrument interface, joints and gaps, so there is still a risk of cross-infection.

[0007] Existing protective sleeves generally suffer from the following defects: poor compatibility, with most products only compatible with a single dental instrument, causing selection difficulties for healthcare workers; incomplete protection, with most products being single-layer wall-mounted structures lacking active sealing and anti-backflow structures; poor ease of operation, lacking aseptic lifting structures, quick positioning structures, and easy-tear structures; insufficient compatibility with three-way guns, easily compressing the water / air button, leading to air / water leakage and compromising medical quality; improper aseptic operation, easily contacting the sterile surface of the sealing sleeve during application; insufficient material and structural durability, easily tearing, breaking, and aging; and existing protective products typically lack a structure that integrates with color-coded warnings for infectious disease risks.

[0008] Therefore, it is necessary to design a disposable dental instrument adapter sealing sleeve that has a wide range of compatibility, good sealing and backflow prevention effect, convenient operation, compatibility with three-way gun buttons, and easy aseptic lifting and quick tearing. Summary of the Invention

[0009] The purpose of this invention is to provide a disposable dental instrument adapter sealing sleeve to solve the problems mentioned in the background art.

[0010] To achieve the above objectives, the present invention provides the technical solutions as described in claims 1-10:

[0011] A disposable dental instrument adapter sealing sleeve includes a sealing sleeve body, which is an integrally molded double-opening tubular structure. The sealing sleeve body includes a tapered tip, a main body, and a reinforcing ring connected sequentially along the axial direction. One end of the tapered tip has a pointed opening, and the middle of the reinforcing ring forms an instrument inlet. The tapered tip has a tapered structure that gradually narrows from the main body to the pointed opening. The connection between the tapered tip and the main body forms a junction. A double-layer latex composite cuff is provided at the pointed opening. The composite cuff area has a misaligned native latex band set facing the main body. The end of the native latex band near the main body has an anti-backflow step. The outer surface of the main body has a double-ring gradient anti-slip locking texture and a three-way gun adaptive cushioning module. The three-way gun adaptive cushioning module includes two concave cavities and an elastic connecting bridge located between the two concave cavities. The reinforcing ring has a thickened micro-flanged edge and a built-in stress buffer layer. The connection between the reinforcing ring and the main body has a micro-cut easy-tear opening. The side of the main body near the reinforcing ring has two ear-shaped protrusions.

[0012] Preferably, the length of the narrowed tip is 8mm-12mm, the diameter of the opening at the tip is 3mm±0.1mm, the diameter of the junction is 9mm-11mm, the junction has a rounded transition structure, the double-layer latex composite cuff includes an inner cuff and an outer cuff that fit together, the double-layer latex composite cuff extends 4mm±0.2mm from the opening at the tip towards the main body, the inner surface of the narrowed tip is smooth, the outer surface of the narrowed tip is slightly rough, and the original latex band is located on the inner surface of the narrowed tip, offset from the double-layer latex composite cuff towards the main body, 4mm±0.1mm from the opening at the tip.

[0013] Preferably, the diameter of the virgin latex bundle is 6.5mm ± 0.1mm, the width is 2mm, the thickness is 0.1mm, and the cross-section is circular. The anti-backflow step is a conical ring structure formed by inward contraction, and the height of the anti-backflow step is 0.3mm ± 0.05mm.

[0014] Preferably, the outer surface of the narrowed tip is provided with color-coded warning strips for infectious disease risks and micro-anti-slip textured areas. The color-coded warning strips for infectious disease risks include four parallel and independent color-coded strips, which respectively form color-coded areas for hepatitis B, hepatitis C, HIV, and Treponema pallidum. The strips are made of a thin sheet structure using a medical color-coded material that can undergo a stable color change when in contact with blood-containing bodily fluids in the oral cavity. This sheet is adhered and fixed to the outer surface of the narrowed tip, forming an integrated structure with the sealing sleeve. A transparent medical protective film covers the outside of the strips to prevent the color-coded material from falling off or becoming contaminated, while not hindering the color development upon contact with bodily fluids. The texture matrix size of the micro-anti-slip textured areas is 0.05 mm.

[0015] Preferably, the length of the main body is 260mm-310mm, the diameter of the main body is 10mm-30mm, and the double-ring gradient anti-slip locking ridge includes two parallel annular ridges. The two annular ridges are respectively located at a distance of 80mm and 100mm from the reinforcing ring. The distance between the two annular ridges is 20mm±0.5mm. The height of each annular ridge is 0.2mm±0.02mm, the width is 1mm±0.1mm, and each annular ridge has a rounded transition structure.

[0016] Preferably, the outer surface of the main body is provided with a coarse dot texture area, a fine dot texture area, and a smooth surface area sequentially from the tip narrowing portion toward the reinforcing ring; the coarse dot texture area is 40mm±0.5mm from the end of the tip narrowing portion, and the texture matrix size of the coarse dot texture area is 0.1mm and the spacing is 0.2mm; the length of the fine dot texture area is 200mm±1mm, and the texture matrix size of the fine dot texture area is 0.05mm and the spacing is 0.1mm; the smooth surface area is 40mm±0.5mm from the end of the reinforcing ring.

[0017] Preferably, the inner surface of the main body is provided with a first slip coating area, a non-slip coating area and a second slip coating area in sequence from the tip narrowing area towards the reinforcing ring. The coating thickness of the first slip coating area is 0.01mm ± 0.001mm and the coating thickness of the second slip coating area is 0.005mm ± 0.001mm.

[0018] Preferably, the three-way gun adaptive buffer module is located 60mm ± 0.5mm from the tip opening on the main body. The diameter of the three-way gun adaptive buffer module area is 15-20mm. Within the buffer module area, 5mm from the tip narrowing section, two elongated elliptical cavities are provided, symmetrically distributed in parallel horizontally. Their major axes are consistent with the major axis of the sealing sleeve. The major and minor axes of the elongated elliptical cavities are 8mm * 5mm, and the depth is 2mm ± 0.1mm. The inner wall of the cavity is provided with a soft latex foam layer. The width of the elastic connecting bridge is 2mm ± 0.1mm, and the thickness is 0.5mm ± 0.05mm. The inner surface of the main body is also provided with three micro anti-displacement protrusion rings. Each micro anti-displacement protrusion ring is composed of multiple annularly distributed micro anti-displacement protrusions. The diameter of the micro anti-displacement protrusions is 0.5mm, the height is 0.1mm, and the distance between two adjacent micro anti-displacement protrusion rings is 50mm.

[0019] Preferably, the reinforcing ring has a maximum outer diameter of 30mm ± 0.2mm, a thickness of 1.0mm ± 0.05mm, and a width of 1.0mm ± 0.05mm. The thickened micro-flanged edge is located at the open end of the reinforcing ring, and the thickness of the thickened micro-flanged edge is 0.5mm ± 0.05mm. The thickened micro-flanged edge is inclined inward at 15° ± 1°. The built-in stress buffer layer is located inside the reinforcing ring, and the thickness of the built-in stress buffer layer is 0.03mm and the width is 10mm. The micro-cut easy-tear opening is located on the inner side of the reinforcing ring, and the length of the micro-cut easy-tear opening is 5mm and the depth is 0.02mm. The micro-cut easy-tear opening does not penetrate the wall of the sealing sleeve body. The outer surface of the reinforcing ring is provided with micro anti-slip texture.

[0020] Preferably, the main body has two ear-shaped protrusions on the side near the reinforcing ring. One of the ear-shaped protrusions has a small triangular positioning mark on its top, which is aligned with the axial centerline between the middle connecting bridge of the three-way gun adaptive buffer module. The length of the ear-shaped protrusion is 8mm±0.2mm, the bottom diameter is 6mm±0.1mm, and the thickness is 0.1mm.

[0021] Preferably, the sealing sleeve body is made of medical-grade natural latex, which is chlorinated deproteinized latex. Medical-grade nano silver ion antibacterial agent is dispersed in the sealing sleeve body. The thickness of the main body is 0.04mm-0.08mm, the thickness of the double-layer composite area of ​​the tip narrowing part is 0.10mm-0.12mm, and the thickness of the reinforcing ring is 1.0mm-1.5mm.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] This invention features an integrated double-opening tubular structure with a narrowed tip, a main body, and a reinforcing ring connected in sequence. This allows instruments to enter through the instrument inlet and pass through the narrowed tip. The double-layer latex composite cuff, the original latex band, and the anti-backflow step at the narrowed tip work together to form a tight-fitting cuff seal and anti-backflow barrier on the instrument surface, reducing the risk of blood, saliva, and oral secretions flowing back along the gaps.

[0024] The main body of the present invention is provided with double-ring gradient anti-slip locking ridges and micro anti-displacement ridge rings, which can increase the friction between the sealing sleeve and the instrument during diagnosis and treatment, reduce the possibility of the sealing sleeve shifting or slipping off during use, or the possibility of secondary contamination caused by body fluids on its surface coming into contact with the instrument holder.

[0025] The main body of this invention is provided with a three-way gun adaptive buffer module. Two elongated elliptical concave cavities can respectively correspond to the water and air dual buttons of the three-way gun with different misaligned arrangements and shapes. The elastic connecting bridge can adapt to the button spacing of different brands of three-way guns. The soft latex foam layer on the inner wall of the concave cavity can buffer the pressing pressure and avoid the pressure of the button causing air or water leakage, making it convenient for the use of the three-way gun.

[0026] The outer surface of the main body of the present invention is provided with a coarse textured area, a fine textured area and a smooth surface area, which can be adapted to different operating scenarios such as gripping, long-term holding and instrument guidance respectively; the inner surface of the main body is provided with a first slip coating area, a non-slip coating area and a second slip coating area, which can take into account anti-adhesion, smooth insertion and fit stability.

[0027] The reinforcing ring of this invention is equipped with a thickened micro-flanged edge, a built-in stress buffer layer, and a micro-cut easy-tear opening. The thickened micro-flanged edge makes it easy for medical staff to quickly open the instrument inlet, the built-in stress buffer layer can disperse the stress during stretching and tearing, and the micro-cut easy-tear opening makes it easy to quickly tear open the sealing sleeve after the treatment. The whole process is simple, fast, smooth, and easy to use.

[0028] The main body of the invention has two ear-shaped protrusions on the side near the reinforcing ring. One of the ear-shaped protrusions has a tiny triangular positioning mark on its top. Medical staff can use the ear-shaped protrusion for aseptic lifting and quickly determine the position of the three-way gun adaptive buffer module through the tiny triangular positioning mark. No repeated adjustments are required during installation, which further improves the efficiency of clinical operation.

[0029] The outer surface of the narrowed tip of this invention is provided with a color-coded warning strip for infectious disease risks. This color-coded warning strip serves as a risk warning structure, especially in oral and maxillofacial surgery procedures with obvious bleeding wounds. Upon contact with blood-containing bodily fluids in the oral cavity, it causes a clear and identifiable color change. By observing the color change, medical staff are aware that the instrument has come into contact with blood-containing bodily fluids, posing a potential risk of cross-infection and occupational exposure. This allows them to promptly take measures such as strengthening hand hygiene, upgrading protection levels, standardizing instrument disposal procedures, and separately sealing and classifying infectious waste during diagnosis and treatment and when cleaning instruments. This compensates for blind spots in infection control caused by patients concealing their medical history. It serves only as an infection risk warning sign and is not used for disease diagnosis. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall outer surface structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the outer surface structure of the tip narrowing portion of the present invention;

[0032] Figure 3 This is a schematic diagram of the inner surface structure of the tip narrowing portion of the present invention;

[0033] Figure 4 This is a schematic diagram of the outer surface structure of the main body of the present invention;

[0034] Figure 5 This is a schematic diagram of the inner surface structure of the main body of the present invention;

[0035] Figure 6 This is a schematic diagram of the outer surface structure of the reinforcing ring of the present invention;

[0036] Figure 7 This is a schematic diagram of the inner surface structure of the reinforcing ring of the present invention.

[0037] In the diagram: 1. Tip narrowing section; 2. Main body; 3. Reinforcing ring; 4. Tip opening; 5. Instrument inlet; 6. Junction; 7. Double-layer latex composite cuff; 8. Native latex band; 9. Anti-backflow step; 10. Color-coded warning strip for infectious disease risk; 11. Micro anti-slip textured area; 12. Double-ring gradient anti-slip locking ridge; 13. Coarse dotted textured area; 14. Fine dotted textured area; 15. Smooth surface area; 16. First slip powder coating area; 17. No slip powder area; 18. Second slip powder coating area; 19. Three-way gun adaptive buffer module; 20. Double concave cavity; 21. Elastic connecting bridge; 22. Micro anti-displacement ridge ring; 23. Thickened micro-flanged edge; 24. Built-in stress buffer layer; 25. Micro-cut easy-tear opening; 26. Micro anti-slip texture; 27. Ear-shaped protrusion; 28. Micro triangular positioning mark. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0039] Example 1

[0040] Please see Figure 1-7 The present invention provides a technical solution: a disposable dental instrument adapter sealing sleeve, including a sealing sleeve body, the sealing sleeve body is an integrally formed double-opening lumen structure, the sealing sleeve body includes a tip narrowing part 1, a main body part 2 and a reinforcing ring 3 connected sequentially along the axial direction.

[0041] The tip narrowing part 1 is located at the front end of the sealing sleeve body, the main body part 2 is located between the tip narrowing part 1 and the reinforcing ring 3, the reinforcing ring 3 is located at the end of the sealing sleeve body, one end of the tip narrowing part 1 has a tip opening 4, and the middle of the reinforcing ring 3 forms an instrument inlet 5; when in use, dental instruments can be inserted into the sealing sleeve body through the instrument inlet 5, and the instruments can be passed through the tip opening 4 or closely fitted with the tip narrowing part 1, thereby protecting the instrument interface, joint or grip section.

[0042] The sealing sleeve is made of medical-grade natural latex, which is a chlorinated deproteinized latex to reduce allergic reactions in both doctors and patients. This material has high elasticity and softness, allowing for stretching and fitting through small openings. It is compatible with dental handpieces, light-curing lamp handles, headlamp handles, three-way nozzles, saliva suction adapters, and other dental instruments of different outer diameters. Medical-grade nano-silver ion antibacterial agents can also be dispersed in the sealing sleeve to enhance the surface antibacterial effect.

[0043] The thickness of the main body 2 is 0.04mm-0.08mm, the thickness of the double-layer composite area of ​​the tip narrowing part 1 is 0.10mm-0.12mm, and the thickness of the reinforcing ring 3 is 1.0mm-1.5mm. The above thickness range takes into account flexibility, fit, tear resistance, and handling feel.

[0044] Example 2

[0045] Please see Figure 2 and Figure 3 In order to improve the sealing and backflow prevention effect between the front end of the sealing sleeve body and the instrument adapter, the tip narrowing part 1 has a tapered structure that gradually narrows from the main body part 2 to the tip opening 4. The connection between the tip narrowing part 1 and the main body part 2 forms an intersection 6. The intersection 6 is smooth and has no obvious steps or edges, which can avoid jamming or tearing during sleeve installation.

[0046] The length of the narrowed tip 1 is 8mm-12mm, preferably 10mm±0.5mm, and the diameter of the junction 6 is 9mm-11mm, preferably 10mm±0.2mm; the diameter of the tip opening 4 is 3mm±0.1mm, and the edge of the tip opening 4 is a rounded transition structure. Since the sealing sleeve body is made of medical-grade natural latex, the tip opening 4 can be stretched when the instrument is put on, and after the sleeve is put on, it can rely on elastic retraction to tightly fit the outer wall of the instrument.

[0047] The double-layer latex composite cuff 7 is provided at the tip opening 4. The double-layer latex composite cuff 7 includes an inner cuff and an outer cuff that fit together. The double-layer latex composite cuff 7 extends 4mm ± 0.2mm from the tip opening 4 toward the main body 2. The inner surface of the tip narrowing part is a smooth surface to reduce friction with the instrument and facilitate putting on the sleeve. The tip narrowing part is a slightly rough surface to improve anti-slip performance.

[0048] The inner layer of the double-layer latex composite cuff 7 is provided with a native latex band 8. The native latex band 8 is located on the inner surface of the double-layer latex composite cuff 7 and is offset towards the main body. The native latex band 8 is 4mm±0.1mm away from the tip opening 4. The diameter of the native latex band 8 is 6.5mm±0.1mm, the width is 2mm, the thickness is 0.1mm, and the cross-section is circular. The native latex band 8 is integrally formed with the double-layer latex composite cuff 7 and can adaptively stretch and shrink according to the diameter of the instrument tube to achieve circumferential binding and sealing of the outer wall of the instrument.

[0049] A backflow prevention step 9 is provided at one end of the original latex band 8 near the main body 2. The backflow prevention step 9 is a conical ring structure formed by inward contraction, and the height of the backflow prevention step 9 is 0.3mm±0.05mm. Through the cooperation of the double-layer latex composite cuff 7, the original latex band 8 and the backflow prevention step 9, a multiple sealing structure can be formed at the tip narrowing part 1, thereby reducing the risk of blood, saliva and oral secretions flowing back along the gap between the sealing sleeve body and the instrument.

[0050] The outer surface of the tip narrowing part 1 is also provided with a micro anti-slip texture area 11. The texture matrix size of the micro anti-slip texture area 11 is 0.05mm. The micro anti-slip texture area 11 can increase the friction when medical staff pinch the tip narrowing part 1 and prevent slippage during use.

[0051] Example 3

[0052] Please see Figure 2 In order to make the sealing sleeve body also have a color-coded warning structure for infectious disease risk, the outer surface of the tip narrowing part 1 is provided with a color-coded warning strip 10 for infectious disease risk. The color-coded warning strip 10 for infectious disease risk includes four parallel and independent color-coded warning strips, and the four color-coded warning strips respectively form color-coded areas for hepatitis B, hepatitis C, HIV virus and syphilis spirochete.

[0053] The infectious disease risk colorimetric indicator strip 10 is made of a thin sheet structure of medical colorimetric material that can produce a stable color change when it comes into contact with blood-containing bodily fluids in the mouth. It is attached and fixed to the outer surface of the tip narrowing section, forming an integrated structure with the sealing sleeve body. The outer side of the infectious disease risk colorimetric indicator strip 10 is covered with a transparent medical protective film. The transparent medical protective film can prevent the colorimetric material from falling off or being contaminated, while not hindering the color development when bodily fluids come into contact with it.

[0054] The length of the infectious disease risk color-coded warning strip 10 can be 15mm ± 0.5mm, the width can be 2mm-3mm, and the thickness can be 0.01mm-0.03mm. The thickness is relatively thin and will not significantly change the overall elasticity and wearing performance of the tip narrowing part 1.

[0055] During diagnosis and treatment, when the infectious disease risk color-coded warning strip 10 comes into contact with bloody bodily fluids in the patient's mouth, the color development of the corresponding area will provide a risk indication. This infectious disease risk color-coded warning strip 10 serves only as an internal risk indication and auxiliary structure for infection control, and is not used as a final clinical diagnostic basis. Medical staff can take classified disposal, strengthen their own protection, and implement terminal disinfection measures for the sealing sleeve and related instruments based on the color-coded warning.

[0056] The infectious disease risk color-coded warning strip serves as a risk warning structure, especially in oral and maxillofacial surgery procedures with obvious bleeding wounds. Upon contact with blood-containing bodily fluids in the oral cavity, it undergoes a clear and identifiable color change. By observing the color change, medical staff are internally aware that the instrument has come into contact with blood-containing bodily fluids, posing a potential risk of cross-infection and occupational exposure. This allows for timely implementation of measures during diagnosis and treatment, including enhanced hand hygiene, upgraded protective measures, standardized instrument disposal procedures, and separate sealing and classification of infectious waste. This addresses blind spots in infection control caused by patients concealing their medical history. It serves only as an infection risk warning label and is not used for disease diagnosis, nor is it shown to or disclosed to patients, used as a basis for treatment decisions, or included in medical records.

[0057] Example 4

[0058] Please see Figure 4 and Figure 5 To improve the stability and operational comfort of the main body 2, the length of the main body 2 is 260mm-310mm, preferably 280mm±1mm, and the diameter of the main body 2 is 10mm-30mm, gradually transitioning towards the reinforcing ring. The main body 2 can adaptively stretch to accommodate different instrument outer diameters, thus allowing a single sealing sleeve to be adapted to various types of dental instruments, reducing selection barriers for medical staff.

[0059] The outer surface of the main body 2 is provided with double-ring gradient anti-slip locking ridges 12. The double-ring gradient anti-slip locking ridges 12 include two parallel annular ridges, which are respectively located at a distance of 80mm and 100mm from the reinforcing ring 3. The distance between the two annular ridges is 20mm±0.5mm. The height of each annular ridge is 0.2mm±0.02mm and the width is 1mm±0.1mm. It adopts an arc transition structure. During diagnosis and treatment, when the sealing sleeve body is lifted up and put back into the instrument holder or when temporary positioning is required, the two annular ridges can form a double locking structure, reducing the risk of the sealing sleeve body slipping and contacting the holder, causing secondary contamination.

[0060] The outer surface of the main body 2 is provided with a coarse textured area 13, a fine textured area 14, and a smooth surface area 15 in sequence from the tip narrowing section 1 towards the reinforcing ring 3. The coarse textured area 13 is located on the side closer to the tip narrowing section 1, 40mm±0.5mm from the end of the tip narrowing section 1. The texture matrix size of the coarse textured area 13 is 0.1mm and the spacing is 0.2mm, which can improve the grip friction during fitting and adjustment. The fine textured area 14 is located in the middle section of the main body 2, with a length of 200mm±1mm. The texture matrix size of the fine textured area 14 is 0.05mm and the spacing is 0.1mm, which can take into account both grip comfort and anti-slip effect. The smooth surface area 15 is located on the side closer to the reinforcing ring 3, 40mm±0.5mm from the end of the reinforcing ring 3, and can be used to set the product brand logo area.

[0061] The inner surface of the main body 2 is provided with a first slip coating area 16, a non-slip coating area 17, and a second slip coating area 18 in sequence from the tip narrowing part 1 towards the reinforcing ring 3. The first slip coating area 16 is located near the tip opening 4 and has a coating thickness of 0.01mm ± 0.001mm, which is used to reduce the resistance of the instrument sleeve. The non-slip coating area 17 is located in the middle section of the main body 2 and is used to improve the fit stability between the sealing sleeve body and the instrument and avoid slipping powder from affecting the operating feel. The second slip coating area 18 is located near the reinforcing ring 3 and has a coating thickness of 0.005mm ± 0.001mm, which is used to prevent the instrument inlet 5 from sticking and to facilitate the opening of the sealing sleeve and the instrument sleeve.

[0062] The inner surface of the main body 2 is also provided with three micro anti-displacement protrusion rings 22. Each micro anti-displacement protrusion ring 22 is composed of multiple ring-shaped micro anti-displacement protrusions. The diameter of the micro anti-displacement protrusions is 0.5 mm and the height is 0.1 mm. The distance between two adjacent micro anti-displacement protrusion rings 22 is 50 mm. The micro anti-displacement protrusion rings 22 can increase the friction between the inner surface of the main body 2 and the outer wall of the instrument, further reducing the possibility of axial displacement of the sealing sleeve body during diagnosis and treatment.

[0063] Example 5

[0064] Please see Figure 4 In order to improve the compatibility of the sealing sleeve body with the water and air buttons of the three-way gun, a three-way gun adaptive buffer module 19 is provided on the outer surface of the main body 2. The three-way gun adaptive buffer module 19 is located at a distance of 60mm±0.5mm from the tip opening 4 of the main body 2.

[0065] The three-way gun adaptive buffer module 19 includes two elongated elliptical cavities 20 and an elastic connecting bridge 21 located between the two cavities 20. The two cavities 20 are symmetrically distributed and correspond to the water button and gas button of the three-way gun, respectively. The major axis and minor axis of the cavity 20 are 8mm*5mm, and the depth is 2mm±0.1mm. The inner wall of the cavity 20 is provided with a soft latex foam layer. The thickness of the soft latex foam layer can be 0.02mm, and the density can be 0.3g / cm³. The soft latex foam layer can buffer the pressing pressure of the sealing sleeve body on the three-way gun button, and prevent the button from being accidentally pressed by the elastic rebound, which would cause air or water leakage and affect the quality of medical treatment.

[0066] The elastic connecting bridge 21 is located between the two recesses 20. The width of the elastic connecting bridge 21 is 2mm±0.1mm and the thickness is 0.5mm±0.05mm. Since the spacing and shape between the water and air buttons of different brands of three-way guns are different, the elastic connecting bridge 21 can be slightly stretched or retracted according to the button spacing, so that the two recesses 20 can be adapted to the button positions of different three-way guns. The outer surface of the three-way gun adaptive buffer module 19 can also be provided with a frosted anti-slip treatment to facilitate the pinching and positioning by medical staff.

[0067] Example 6

[0068] Please see Figure 6 and Figure 7 In order to facilitate the quick opening, fitting and tearing of the sealing sleeve body, the reinforcing ring 3 is located at the end of the sealing sleeve body. The reinforcing ring 3 has a ring structure and is integrally formed with the main body 2. The maximum outer diameter of the reinforcing ring 3 is 30mm±0.2mm, the thickness is 1.0mm±0.05mm, and the width is 1.0mm±0.05mm.

[0069] The reinforcing ring 3 is provided with a thickened micro-flange 23, which is located at the open end of the reinforcing ring 3. The thickness of the thickened micro-flange 23 is 0.5mm±0.05mm, and the thickened micro-flange 23 is inclined inward at 15°±1°. The edge of the thickened micro-flange 23 is a rounded transition structure. The thickened micro-flange 23 can facilitate medical staff to open the instrument inlet 5 with one hand, while enhancing the tear resistance of the open end of the reinforcing ring 3.

[0070] The reinforcing ring 3 has an internal stress buffer layer 24 with a thickness of 0.03 mm and a width of 10 mm. The internal stress buffer layer 24 can disperse the tensile force concentrated on the connection between the reinforcing ring 3 and the main body 2 when the sealing sleeve body is put on, stretched and torn, reducing the risk of tearing or permanent deformation at this point.

[0071] A micro-tear opening 25 is provided at the connection between the reinforcing ring 3 and the main body 2. The micro-tear opening 25 is located on the inner side of the reinforcing ring 3. The length of the micro-tear opening 25 is 5mm and the depth is 0.02mm. The micro-tear opening 25 does not penetrate the wall of the sealing sleeve body and does not affect the sealing and protective effect during use. After the diagnosis and treatment, medical staff can quickly tear open the sealing sleeve body from the micro-tear opening 25 to avoid pulling the instrument tubing forcefully.

[0072] The outer surface of the reinforcing ring 3 is provided with micro-anti-slip textures 26, the matrix size of which is 0.1mm. The micro-anti-slip textures 26 can increase the pinching friction when medical staff open, put on, and tear off the ring.

[0073] Example 7

[0074] Please see Figure 6 In order to achieve sterile lifting and precise positioning, two ear-shaped protrusions 27 are provided on the side of the main body 2 near the reinforcing ring 3. The two ear-shaped protrusions 27 are symmetrically distributed on both sides of the main body 2 and are integrally formed with the main body 2 and the reinforcing ring 3.

[0075] The ear-shaped protrusion 27 has a length of 8mm ± 0.2mm, a bottom diameter of 6mm ± 0.1mm, and a thickness of 0.1mm. The top of the ear-shaped protrusion 27 has a rounded transition structure. The surface of the ear-shaped protrusion 27 can be roughened with micro-matrix pitting to improve the friction when pinching.

[0076] The ear-shaped protrusion 27 mainly serves as a sterile lifting structure. When in use, medical staff can directly pinch the ear-shaped protrusion 27 to lift the sealing sleeve body and put it on the instrument, reducing the chance of hand contact with the main sterile area of ​​the sealing sleeve body and reducing the risk of contamination.

[0077] One of the ear-shaped protrusions 27 has a tiny triangular positioning mark 28 on its top. The tiny triangular positioning mark 28 is aligned with the center line of the middle connecting bridge of the three-way gun adaptive buffer module 19. The side length of the tiny triangular positioning mark 28 is 1mm ± 0.1mm, the color can be medical grade blue, and a waterproof layer can be provided. Medical staff can quickly determine the position of the three-way gun adaptive buffer module 19 through the tiny triangular positioning mark 28, so that when the sealing sleeve body is put on the three-way gun, the two concave cavities 20 can be quickly aligned with the water and air dual buttons of the three-way gun.

[0078] The working principle and usage process of this invention are as follows:

[0079] When using this invention, medical staff first open the individual sterile packaging, pinch the ear-shaped protrusion 27 or the reinforcing ring 3, and open the instrument inlet 5 by thickening the micro-flanging edge 23. Then, dental outpatient instruments such as dental handpieces, light-curing lamp handles, headlamp handles, three-way gun tips, and saliva suction tube adapters are inserted into the sealing sleeve body through the instrument inlet 5.

[0080] The instrument is threaded along the main body 2 toward the tip narrowing 1. When the end of the instrument passes the tip opening 4, the tip opening 4 and the double-layer latex composite cuff 7 are stretched open by force. After the instrument passes through or reaches the predetermined position, the tip opening 4, the double-layer latex composite cuff 7 and the original latex band 8 retract under the elasticity of the latex, tightly fitting the outer wall of the instrument. At the same time, the anti-backflow step 9 is located at the end of the original latex band 8 near the main body 2, which blocks blood, saliva and oral secretions that may flow back along the inner wall of the sealing sleeve, thereby improving the sealing and protection effect.

[0081] When this invention is used in a three-way gun, medical staff determine the position of the three-way gun's adaptive buffer module 19 by using the tiny triangular positioning mark 28, so that the two concave cavities 20 are respectively aligned with the water button and gas button of the three-way gun. The soft latex foam layer on the inner wall of the concave cavity 20 buffers the pressure at the button, and the elastic connecting bridge 21 deforms slightly according to the button spacing, so that the sealing sleeve body can not only cover the three-way gun, but also prevent the elastic rebound from accidentally pressing the button and causing air or water leakage.

[0082] During diagnosis and treatment, the coarse textured area 13, fine textured area 14, and smooth surface area 15 on the outer surface of the main body 2 are adapted to different operating scenarios such as gripping and long-term holding; the double-ring gradient anti-slip locking ridge 12 can form a lock when the sealing sleeve body is lifted up, and the micro anti-displacement ridge ring 22 on the inner surface of the main body 2 increases the friction between the sealing sleeve body and the outer wall of the instrument, reducing the risk of slippage or fall off of the sealing sleeve body.

[0083] During diagnosis and treatment, if the infectious disease risk color-coded warning strip 10 on the outer surface of the narrowed tip 1 comes into contact with bloody bodily fluids in the patient's mouth, the color of the corresponding warning strip can provide a risk warning. Medical staff can then strengthen their own protection and classify and dispose of the sealing cap and instruments accordingly. The infectious disease risk color-coded warning strip 10 is only used for internal warnings of infection risk and is not used as the final basis for disease diagnosis. It will not be shown to the patient or included in the medical record. It is only used for internal risk warnings for medical staff, to strengthen their own protection, and to standardize classification and disposal.

[0084] After the consultation, medical staff pinch the reinforcing ring 3 or the ear-shaped protrusion 27, quickly tear open the sealing sleeve from the micro-tear opening 25, and discard it. If the infectious disease risk indicator strip 10 shows a positive risk warning, upgrade their own protective measures, seal the sealing sleeve separately and discard it, and strengthen the disinfection of related instruments and operating areas. The whole process is simple and quick, which is convenient for one person to use and change disposable physical protection in the high-frequency treatment scenario of dental clinics.

[0085] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A disposable dental instrument adapter sealing sleeve, comprising a sealing sleeve body, characterized in that, The sealing sleeve body is an integrally formed double-opening tube structure. The sealing sleeve body includes a tip narrowing part (1), a main body part (2), and a reinforcing ring (3) connected sequentially along the axial direction. One end of the tip narrowing part (1) is provided with a tip opening (4), and the middle of the reinforcing ring (3) forms an instrument inlet (5). The tip narrowing part (1) is a tapered structure that gradually narrows from the main body part (2) to the tip opening (4). The connection between the tip narrowing part (1) and the main body part (2) forms an intersection (6). The surface of the tip opening (4) is provided with the double-layer latex composite cuff (7). The inner layer of the double-layer latex composite cuff (7) is provided with a native latex bundle (8) offset away from the opening direction. The end of the native latex bundle (8) near the main body part (2) is provided with an anti-backflow step (9). The outer surface of the main body part (2) is provided with a double-ring gradient anti-slip locking ridge (12) and a three-way gun adaptive buffer mold. Block (19), the three-way gun adaptive buffer module (19) includes two concave cavities (20) and an elastic connecting bridge (21) located between the two concave cavities (20); the reinforcing ring (3) is provided with a thickened micro-flanged edge (23) and a built-in stress buffer layer (24), and the reinforcing ring (3) is provided with a micro-cut easy-tear opening (25); the main body (2) is provided with two ear-shaped protrusions (27) on the side near the reinforcing ring (3), and the two ear-shaped protrusions (27) are symmetrically distributed on both sides of the main body (2); the top of one of the two ear-shaped protrusions has a small triangular positioning mark (28), which is aligned with the center line of the elastic connecting bridge (21) between the two concave cavities (20), that is, the axial center line between the two concave cavities is aligned; the original latex bundle (8) is located on the inner surface of the tip narrowing part (1), and is offset from the double-layer latex composite cuff (7) in the direction of the main body (2), and is 4mm ± 0.1mm away from the tip opening (4).

2. The disposable dental instrument adapter sealing sleeve according to claim 1, characterized in that, The length of the tip narrowing part (1) is 8mm-12mm, the diameter of the tip opening (4) is 3mm±0.1mm, the diameter of the junction (6) is 9mm-11mm, and the junction (6) is an arc transition structure; the double-layer latex composite cuff (7) includes an inner cuff and an outer cuff that fit together, the double-layer latex composite cuff (7) extends 4mm±0.2mm from the tip opening (4) toward the main body (2), the inner wall of the tip narrowing part (1) is a smooth surface, and the outer wall of the tip narrowing part (1) is a slightly rough surface.

3. The disposable dental instrument adapter sealing sleeve according to claim 1, characterized in that, The diameter of the original latex bundle (8) is 6.5mm ± 0.1mm, the width is 2mm, the thickness is 0.1mm, and the cross-section is circular; the anti-backflow step (9) is a conical ring structure formed by inward contraction, and the height of the anti-backflow step (9) is 0.3mm ± 0.05mm.

4. The disposable dental instrument adapter sealing sleeve according to claim 1, characterized in that, The outer surface of the narrowed tip (1) is provided with an infectious disease risk color-coded warning strip (10) and a micro anti-slip textured area (11). The infectious disease risk color-coded warning strip (10) includes four parallel and independent color-coded warning strips made of medical color-coded material that can undergo stable color changes when exposed to blood-containing body fluids. The four color-coded warning strips respectively form color-coded areas for hepatitis B, hepatitis C, HIV virus and Treponema pallidum. The outer side of the infectious disease risk color-coded warning strip (10) is covered with a transparent medical protective film. The texture matrix size of the micro anti-slip textured area (11) is 0.05 mm.

5. The disposable dental instrument adapter sealing sleeve according to claim 1, characterized in that, The length of the main body (2) is 260mm-310mm, and the diameter of the main body (2) is 10mm-30mm, gradually transitioning towards the reinforcing ring; the double-ring gradient anti-slip locking ridge (12) includes two parallel annular ridges, which are respectively set at positions 80mm and 100mm away from the reinforcing ring (3), the distance between the two annular ridges is 20mm±0.5mm, the height of each annular ridge is 0.2mm±0.02mm, the width is 1mm±0.1mm, and each annular ridge is a circular arc transition structure.

6. The disposable dental instrument adapter sealing sleeve according to claim 1, characterized in that, The outer surface of the main body (2) is provided with a coarse dot texture area (13), a fine dot texture area (14) and a smooth surface area (15) in sequence from the tip narrowing part (1) towards the reinforcing ring (3); the coarse dot texture area (13) is 40mm ± 0.5mm away from the end of the tip narrowing part (1), and the texture matrix size of the coarse dot texture area (13) is 0.1mm and the spacing is 0.2mm; the length of the fine dot texture area (14) is 200mm ± 1mm, and the texture matrix size of the fine dot texture area (14) is 0.05mm and the spacing is 0.1mm; the smooth surface area (15) is 40mm ± 0.5mm away from the end of the reinforcing ring (3).

7. The disposable dental instrument adapter sealing sleeve according to claim 1, characterized in that, The inner surface of the main body (2) is provided with a first slip coating area (16), a non-slip coating area (17) and a second slip coating area (18) in sequence from the tip narrowing part (1) towards the reinforcing ring (3); the coating thickness of the first slip coating area (16) is 0.01mm±0.001mm and the coating thickness of the second slip coating area (18) is 0.005mm±0.001mm.

8. The disposable dental instrument adapter sealing sleeve according to claim 1, characterized in that, The three-way gun adaptive buffer module (19) is located on the main body (2) at a distance of 60mm ± 0.5mm from the tip opening (4), with a diameter of 15-20mm ± 1mm ​​and a maximum depth of 2mm ± 0.1mm near the tip narrowing part (1). It is a sloping outward protrusion that gradually transitions towards the reinforcing ring (3), with its edge naturally and smoothly transitioning to the main body (2). Two elongated elliptical concave cavities (20) are symmetrically distributed in parallel in the direction near the tip narrowing part (1) of the adaptive buffer module (19). Their major axis is consistent with the major axis of the sealing sleeve. The major and minor axes of the elongated elliptical double concave cavities (20) are 8mm * 5mm, and the depth is 2mm ± 0.1mm, in order to adapt to different The axial position of the water and gas buttons of the brand three-way gun is misaligned (some are horizontally parallel, some are axially misaligned, some are circular, and some are long strips). The inner wall of the cavity (20) is provided with a soft latex foam layer. The width of the elastic connecting bridge (21) is 2mm±0.1mm and the height is 0.5mm±0.05mm. The inner surface of the main body (2) is also provided with three micro anti-displacement protrusion rings (22). Each micro anti-displacement protrusion ring (22) is composed of multiple ring-shaped micro anti-displacement protrusions. The diameter of the micro anti-displacement protrusion is 0.5mm and the height is 0.1mm. The distance between two adjacent micro anti-displacement protrusion rings (22) is 50mm.

9. The disposable dental instrument adapter sealing sleeve according to claim 1, characterized in that, The reinforcing ring (3) has a maximum outer diameter of 30mm ± 0.2mm, a thickness of 1.0mm ± 0.05mm, and a width of 1.0mm ± 0.05mm; the thickened micro-flanged edge (23) is located at the open end of the reinforcing ring (3), the thickness of the thickened micro-flanged edge (23) is 0.5mm ± 0.05mm, and the thickened micro-flanged edge (23) is inclined inward at 15° ± 1°; the built-in stress buffer layer (24) is located inside the connection area between the reinforcing ring (3) and the main body, the thickness of the built-in stress buffer layer (24) is 0.03mm, and the width is 10mm; the micro-cut easy-tear opening (25) is located on the inner side of the reinforcing ring (3), the length of the micro-cut easy-tear opening (25) is 5mm, the depth is 0.02mm, and the micro-cut easy-tear opening (25) does not penetrate the wall of the sealing sleeve body; the outer surface of the reinforcing ring (3) is provided with micro anti-slip texture (26).

10. The disposable dental instrument adapter sealing sleeve according to any one of claims 1-9, characterized in that, Two ear-shaped protrusions (27) are provided on the side of the main body (2) near the reinforcing ring (3). The two ear-shaped protrusions (27) are symmetrically distributed on both sides of the main body (2). One of the ear-shaped protrusions (27) has a small triangular positioning mark (28) on its top. The small triangular positioning mark (28) is aligned with the center line of the middle connecting bridge of the three-way gun adaptive buffer module (19). The length of the ear-shaped protrusion (27) is 8mm ± 0.2mm, and the bottom diameter is... 6mm±0.1mm, with a thickness of 0.1mm; the sealing sleeve body is made of medical-grade natural latex, which is chlorinated deproteinized latex, and medical-grade nano silver ion antibacterial agent is dispersed in the sealing sleeve body; the thickness of the main body (2) is 0.04mm-0.08mm, the thickness of the double-layer composite area of ​​the tip narrowing part (1) is 0.10mm-0.12mm, and the thickness of the reinforcing ring (3) is 1.0mm-1.5mm.

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