Transfer device for screwdriver and healing cap in implant system to prevent accidental swallowing and aspiration and its application

Abstract

The present invention discloses a transfer device for screwdrivers and healing caps in an implant system that prevents accidental swallowing and aspiration, and its application, comprising a detachably connected fixed cover body and a clamping sleeve; the top surface of the fixed cover body is provided with a fixing hole for inserting a screwdriver handle; the inner cavity of the clamping sleeve is provided with a clamping assembly for clamping a healing cap / covering screw; the fixing hole is connected to the inner cavity of the clamping sleeve, so that the screwdriver can cooperate with the healing cap / covering screw clamped by the clamping assembly. The screwdriver and the healing cap / covering screw are integrated and installed outside the patient's oral cavity by the transfer device, so as to prevent the screwdriver, healing cap / covering screw and other medical devices from falling off during the process of being moved in / out of the patient's oral cavity, and then being accidentally swallowed or aspirated into the body by the patient, causing serious medical accidents. The present invention can improve the efficiency and safety of clinical operations related to implantation, and can effectively avoid the occurrence of serious medical accidents.

Description

Technical Field

[0001] The invention belongs to the field of oral medical instruments, and in particular relates to a transfer device for a screwdriver and a healing cap in an implant system to prevent accidental swallowing and aspiration, and application thereof. Background Art

[0002] Oral diagnosis and treatment operations are limited in space, with difficult fields of vision. The diagnostic and treatment instruments are small, numerous and of various shapes. In addition, they are affected by saliva, blood, water spray and other factors. Oral medical devices are prone to accidental detachment, and there is a medical risk of being swallowed or inhaled by the patient. According to surveys, the incidence of accidental swallowing and aspiration of oral diagnosis and treatment instruments is 0.004%, which is significantly higher than accidental swallowing and aspiration, and mostly occurs in the middle-aged, elderly and children. In oral implant restoration diagnosis and treatment, screwdrivers, cover screws and healing caps are often used to seal and remove implant platforms in primary and secondary surgeries, and are also the implant system components that are most susceptible to accidental swallowing and aspiration.

[0003] The main reasons for accidental dislodgment and accidental swallowing and aspiration of these parts are:

[0004] 1. The implant system's screwdriver, cover screw, healing cap and other tools are small and difficult for doctors to hold steadily after being stained with saliva and blood in the patient's mouth;

[0005] 2. The upper jaw area is operated against the direction of gravity, and the parts are easy to slip;

[0006] 3. The visual field in the left maxillary posterior tooth area is narrow and the light source is insufficient, so medical operations are sometimes performed in a blind state;

[0007] 4. When there is an obstruction from adjacent teeth, bones or soft tissues, the connection method that only relies on the friction fit between the screwdriver tip and the screw opening of the healing cap / cover screw is not stable enough, and the healing cap / cover screw is easy to loosen when it touches the obstruction body;

[0008] 5. Some doctors use tweezers to grasp the parts, which is not stable enough;

[0009] 6. The patient is uncooperative and moves his head too much;

[0010] 7. The patient's systemic disease leads to weakened protective swallowing reflex and cough reflex;

[0011] 8. Doctors’ fatigue operation;

[0012] 9. After the device falls off, the patient's fear reaction makes it difficult to remove the fallen device.

[0013] Slipped parts can be inhaled into the trachea or swallowed into the digestive tract, causing digestive symptoms such as dysphagia and difficulty swallowing, as well as respiratory symptoms such as dyspnea and coughing. At the same time, small and sharp parts can also wander in the body, further scratching tissues, causing perforation, heavy bleeding, and even serious medical accidents that endanger life. Studies have shown that once these accidental swallowing and aspiration incidents occur, most of them require endoscopic or even open surgery to remove them, leading to a serious crisis of trust between doctors and patients or medical disputes, posing a huge threat to the physical and mental health of patients, and also causing huge losses to doctors and hospitals in terms of their careers, industry reputation, and economy. Therefore, it is particularly important to prevent the accidental swallowing and aspiration of these small parts in clinical practice, and prevention itself is the best treatment.

[0014] Unfortunately, although doctors are aware of the dangers of accidental swallowing and aspiration, current prevention still relies on cautious techniques and strong suction. This is particularly insufficient under the many adverse circumstances mentioned above, and accidental swallowing and aspiration still occur from time to time. Therefore, from the physical and mechanical level, a device is invented for pre-fixation and overall transfer inside and outside the patient's mouth to fix, stabilize and safely transfer components such as screwdrivers, healing caps / cover screws, etc., to avoid accidental loosening of implant instruments and medical accidents caused by accidental swallowing and aspiration by patients. Summary of the invention

[0015] The purpose of the present invention is to use the transfer device in the clinical treatment of primary and secondary implant surgeries and tooth restoration, to integrate the screwdriver, healing cap and covering screw into an integrated position, so as to stably transfer the screwdriver and fix the healing cap and covering screw; to reduce the risk of various similar medical devices being accidentally swallowed or inhaled by patients after they become loose, and to effectively ensure the efficiency and safety of clinical operations and the physical and mental health of patients.

[0016] The present invention is achieved through the following technical solutions:

[0017] A transfer device for a screwdriver and a healing cap in an implant system to prevent accidental swallowing and aspiration comprises a detachably connected fixed cover body and a clamping sleeve; a fixing hole for passing a screwdriver handle is provided on the top surface of the fixed cover body; a clamping assembly for clamping a healing cap / covering screw is provided in the inner cavity of the clamping sleeve; the fixing hole is connected to the inner cavity of the clamping sleeve, so that the screwdriver can cooperate with the healing cap / covering screw clamped by the clamping assembly.

[0018] Through the above scheme, the present invention at least achieves the following technical effects:

[0019] The screwdriver is inserted from the fixing hole on the fixing cover body to form a stable installation effect, which is not easy to fall off; then the healing cap / cover screw is placed into its inner cavity from the tube mouth of the clamping sleeve, and is clamped and fixed by the built-in clamping component. The fixing hole is connected to the inner cavity of the clamping sleeve, so that the tip of the screwdriver can contact and match the screw mouth on the top of the healing cap / cover screw.

[0020] During clinical operation, the screwdriver and healing cap / cover screw are installed on the transfer device according to the above scheme outside the patient's mouth, and then the transfer device system is transferred as a whole to the implant platform in the mouth. The healing cap / cover screw is tightened by the screwdriver. During the tightening process, the clamping component can be unlocked to release the healing cap / cover screw to avoid the influence of the clamping component on the screwing operation. After tightening the healing cap / cover screw, the transfer device is moved out of the mouth, and the screwdriver is fixed and taken out together.

[0021] The transfer device can be used for the stable retention and transfer of implant system components such as screwdrivers, healing caps / cover screws, and avoid the risk of instruments falling off and being accidentally swallowed or aspirated during clinical diagnosis and treatment, thereby effectively ensuring the efficiency and safety of clinical diagnosis and treatment and the physical and mental health of patients.

[0022] Preferably, the fixed cover body is in the shape of an elliptical column, and rope threading holes are symmetrically opened at both ends of the long axis of its elliptical top surface, and a traction rope is matched in the rope threading holes.

[0023] The fixed cover is in the shape of an ellipse. When placed in the edentulous space of the oral cavity, the long axis of the ellipse is perpendicular to the plane of the edentulous space (i.e., placed in the buccal and lingual direction). During clinical operation, one end of the traction rope can be passed through the threading hole and a knot can be tied at its protruding end; the other end of the traction rope can be tied to the doctor's working wrist. Alternatively, the two ends of the traction rope can be connected to form a rope loop, and the transfer device can be fixed in a similar way to the rope hole of a mobile phone, and the other end can be put on the doctor's working wrist to prevent the transfer device from falling off as a whole.

[0024] Preferably, the clamping assembly includes two symmetrically arranged clamping arms; any one of the clamping arms includes a rubber clip and a telescopic key; the rubber clip is arranged in the inner cavity of the clamping sleeve, one end of the telescopic key passes through a window opened on the side wall of the clamping sleeve and is detachably connected to the rubber clip, and the other end protrudes from the side wall of the clamping sleeve.

[0025] The symmetrical clamping arm structure can clamp and fix the healing cap / cover screw from both sides. The telescopic key is similar to a clamping "switch button", and the clamping / releasing action of the clamping assembly can be controlled by pressing / releasing. The protruding telescopic parts on both sides of the transfer device are pressed symmetrically, and the pressing force is transmitted to the rubber clip, so that the rubber clip is pressed against the side wall of the healing cap / cover screw. The rubber clip made of rubber material produces elastic deformation under force, increasing its contact area with the side wall of the healing cap / cover screw. Under the combined effect of the friction coefficient of the rubber material, the contact area, and the pressure generated by pressing, the friction between the rubber clips on both sides and the side wall of the healing cap / cover screw is greater than the gravity of the healing cap / cover screw to achieve a clamping effect. The larger the contact area and the stronger the pressure, the greater the friction generated, and the higher the stability of clamping the healing cap / cover screw, which prevents the healing cap / cover screw from loosening during the transfer process.

[0026] Preferably, the telescopic key includes a first connecting rod, a second connecting rod and a button; the first connecting rod and the second connecting rod are parallel to each other and one end located in the inner cavity of the clamping sleeve is connected to the rubber clip, and one end of the two connecting rods protruding from the side wall of the clamping sleeve is vertically connected to the button; the end of the button connected to the first connecting rod protrudes to form an upper edge; a tooth groove is formed on the rod body of the second connecting rod, and a convex tooth is formed on the inner wall of the window cooperating with the second connecting rod, and the tooth groove is engaged in the convex tooth.

[0027] If the clamping assembly does not have a locking structure, the doctor always needs to press the telescopic key to maintain the clamping force on the clip, so as to ensure that the healing cap / cover screw is clamped stably and does not loosen. However, when the transfer device is moved into the patient's mouth, it is difficult for the doctor's fingers to enter the narrow toothless gap with the transfer device and maintain a stable posture. Therefore, a locking structure is set on the telescopic key to fix the position of the clamping arm and provide a stable clamping effect.

[0028] The locking structure is a tooth groove provided on the second connecting rod and a convex tooth provided on the side wall of the corresponding window, which mesh with each other to produce the effect of locking the second connecting rod. Alternatively, when the side wall thickness of the clamping sleeve is insufficient, the tooth groove can directly abut against the inner side wall of the clamping sleeve to achieve the effect of locking the second connecting rod.

[0029] The unlocking structure is the upper edge of the button. By pressing the upper edge, the first link and the second link are slightly tilted in the corresponding window, the tooth groove on the second link is disengaged from the convex tooth, and the limiting effect of the second link is released. The entire telescopic part can be manually pulled out to an end distance, and the rubber clip is disengaged from the healing cap / cover screw to achieve the release function.

[0030] In order to further enhance the supporting effect of the telescopic key on the rubber clip, the first connecting rod and the second connecting rod are connected to the rubber clip at the same time, and the stability is improved through two supporting points.

[0031] Preferably, any clamping arm further comprises a return spring; one end of the return spring is connected to the button, and the other end is connected to the side wall of the clamping sleeve.

[0032] If the clamping assembly does not have an unlocking structure, it is difficult for the doctor to efficiently reset the clamping piece to its original position after pressing the clamp, and therefore an additional manual reset process of pulling out the clamping arm is required. This reset operation is undoubtedly inefficient and inaccurate. Therefore, a reset spring is added between the button and the side wall of the clamping sleeve so that the telescopic key can pop out automatically after unlocking, avoiding the situation where the tooth groove on the second connecting rod engages with the convex teeth on the inner wall of the window again to form a limit lock after pressing the upper edge of the button to unlock.

[0033] When unlocking, press the upper edge of the button to cause the first connecting rod and the second connecting rod to move slightly upward in the window, the tooth groove on the second connecting rod disengages from the convex teeth on the inner wall of the window, and the elastic restoring force of the reset spring drives the clamping arm back to its initial position, thereby unlocking and releasing the healing cap / covering screw.

[0034] Preferably, the cross section of the rubber clip in a plan view is in the shape of an arc, and the central angle of the arc of its orthographic projection in the top surface of the fixed cover body is greater than or equal to 90° and less than 180°.

[0035] Since the sizes of healing caps / cover screws of different models are different, in order to improve the applicability of the transfer device, arc-shaped rubber clips are used to clamp the healing caps / cover screws. Since the two rubber clips in the two symmetrical clamping arms are also mirror structures, the shapes of the two rubber clips are limited to between a quarter arc and a half arc.

[0036] If the curvature of the two rubber clips is too large, when clamping a healing cap / cover screw with a smaller diameter, the edges of the two rubber clips squeeze each other and affect the clamping effect.

[0037] If the curvature of the two rubber clips is too small, when clamping a healing cap / cover screw with a larger diameter, the contact area between the two rubber clips and the edge of the healing cap / cover screw will be insufficient, causing the healing cap / cover screw to shake or loosen.

[0038] Preferably, the side wall of the clamping sleeve is stepped; the top pipe opening of the clamping sleeve is detachably embedded in the bottom cover opening of the fixed cover body.

[0039] The clamping sleeve and the fixed cover are connected in a detachable interlocking manner, and reducing the fixed structure is beneficial to reducing the volume of the transfer device; at the same time, it reduces the dead corners in the transfer device that are difficult to clean and disinfect, making the cleaning and disinfection of the transfer device more thorough and avoiding medical cross infection.

[0040] The clamping sleeve is smoothly connected to the fixed cover body, and the transfer device is smooth and has no edges and corners, which can avoid scratching the patient's mouth. Therefore, in order to meet the requirements of the embedded connection, the side wall of the clamping sleeve is set to be stepped and embedded in the fixed cover body with a narrow mouth.

[0041] Preferably, the fixed cover body is made of medical rubber; the thickness of the top of the fixed cover body is 20-40% of the length of the screwdriver handle it fixes; and the inner diameter of the fixing hole is smaller than the diameter of the screwdriver handle.

[0042] To facilitate disinfection and cleaning, the fixed cover is made of medical rubber. The rubber material of the fixed cover has a dual function: first, the elastic deformation of the rubber allows the cover to fit with the clamping sleeve; second, the elastic deformation ability can also make the fixing hole have an expansion and contraction effect. The diameter of the fixing hole is slightly smaller than the diameter of the screwdriver handle. When the screwdriver handle passes through the fixing hole, the side wall of the fixing hole is deformed by force, which will form an extrusion and fixation effect on the screwdriver handle, thereby enhancing the installation stability of the screwdriver.

[0043] In order to further enhance the stabilizing effect, the fixed cover body needs to have a certain thickness to ensure the length of the fixing hole, so that the fixing channel has a sufficient contact area and forms a supporting effect. Therefore, the top thickness of the fixed cover body is limited to 20-40% of the length of the screwdriver handle. Too thin will affect the installation stability of the screwdriver, and too thick will increase the volume of the transfer device and affect the operation.

[0044] The present invention provides an application method of a screwdriver and a healing cap transfer device in an implant system to prevent accidental swallowing and aspiration, comprising the screwdriver and the healing cap transfer device in the implant system to prevent accidental swallowing and aspiration described in the above scheme, characterized in that it also includes the following steps:

[0045] S1: Connect and assemble the fixed cover body and the clamping sleeve to form the transfer device body;

[0046] S2: Insert the tip of the screwdriver into the inner cavity of the clamping sleeve along the fixing hole, so that the screwdriver handle is restricted in the fixing hole and cannot be disengaged; S3: Place the healing cap / cover screw to be transferred during the operation into the inner cavity of the clamping sleeve, and clamp it in place through the clamping assembly;

[0047] S4: Adjust the depth of the screwdriver into the inner cavity of the clamping sleeve so that the tip of the screwdriver fits into the screw opening of the healing cap / cover screw top surface;

[0048] S5: The transfer device is transferred to the implant platform in the patient's mouth for surgical installation. The transfer device transfers the screwdriver and healing cap / cover screw simultaneously.

[0049] S6: Manipulate the screwdriver to pre-fix the healing cap / cover screw to the implant platform in the patient's mouth;

[0050] S7: Unlock the clamping assembly to release the healing cap / covering screw that is clamped in place;

[0051] S8: Continue to manipulate the screwdriver to tighten and fix the healing cap / cover screw to complete its installation on the implant platform in the patient's mouth; S9: Take out the transfer device, and the screwdriver is taken out of the patient's mouth synchronously with the transfer device;

[0052] S10: Pull out the screwdriver from the fixing hole on the fixing cover and disinfect it for later use.

[0053] Through the above scheme, the present invention at least achieves the following technical effects:

[0054] The transfer device operation method can be used with the transfer device in the above scheme to fix the screwdriver and the healing cap / cover screw as a whole outside the patient's mouth, and transfer them to the implant platform in the patient's mouth for installation. After the installation is completed, the transfer device and the screwdriver are removed from the patient's mouth as a whole. The transfer device and its operation method can stably and efficiently avoid the drop of medical devices during clinical operations, and reduce the risk of patients seeking medical treatment.

[0055] Preferably, in step S1, the doctor binds the fixed cover to the working wrist through a traction rope to prevent the transfer device from falling.

[0056] Doctors can use a slipknot to fasten one end of the traction rope in the traction rope hole of the transfer device in a similar way to tying a knot through the rope hole of a mobile phone, and put the other end on the working wrist to prevent the transfer device, the screwdriver that will be fixed later, and the healing cap / cover screw from falling into the patient's mouth. On the basis of the integrated fixation of the screwdriver and the healing cap / cover screw through the transfer device, the traction rope is added as an overall anti-fall protection structure.

[0057] The beneficial effects of the present invention are: the screwdriver and the healing cap / cover screw are integrated and installed outside the patient's mouth through the transfer device, so as to avoid the screwdriver and the healing cap / cover screw from loosening and falling during the process of moving in / out of the patient's mouth, and prevent them from being further swallowed or inhaled by the patient, causing more serious medical accidents and disputes. The invented device significantly enhances the efficiency and safety of transfer operations during clinical implant surgery, and effectively protects the physical and mental health of patients. In addition, the transfer device has many advantages such as relatively simple structure, low cost, simple clinical operation, detachable and replaceable accessories for easy maintenance, and medical disinfection. It can be recommended to be configured and used as an accessory of the surgical tool box of the oral implant system. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Figure 1 This is a schematic diagram of the overall structure of a screwdriver and a healing cap / cover screw installed on a transfer device for a screwdriver and a healing cap in an implant system for preventing accidental swallowing and aspiration provided in one embodiment of the present invention.

[0059] Figure 2 This is a schematic diagram of the disassembled structure of a screwdriver and a transfer device of a healing cap in an implant system for preventing accidental swallowing and aspiration provided in one embodiment of the present invention.

[0060] Figure 3 It is a schematic diagram of a partially enlarged structure of a clamping arm in a locked state provided in one embodiment of the present invention.

[0061] Figure 4 It is a schematic diagram of a partially enlarged structure of the clamping arm in the unlocked state provided in one embodiment of the present invention.

[0062] Figure 5 It is a schematic diagram of the partial structure of the clamping arm unlocked and ejected provided in one embodiment of the present invention.

[0063] Figure 6 The figure is a schematic diagram of the disassembled structure of the telescopic key and the rubber clip provided in one embodiment of the present invention.

[0064] Figure 7 The figure is a schematic diagram of a top view of the structure of a transfer device provided in one embodiment of the present invention.

[0065] Figure 8 The figure is a schematic diagram of the three-dimensional structure of a rubber clip provided in one embodiment of the present invention.

[0066] legend:

[0067] 1Fixing cover; 2Clamping sleeve; 3Screwdriver; 4Healing cap / covering screw; 5Traction rope;

[0068] 11 fixing hole; 12 rope threading hole;

[0069] 21 clamping assembly; 22 window;

[0070] 211 rubber clip; 212 telescopic key; 213 return spring;

[0071] 221 convex teeth;

[0072] 2111 mortise and tenon holes;

[0073] 2121 first connecting rod; 2122 second connecting rod; 2123 key; 2124 tooth groove; 2125 tenon. DETAILED DESCRIPTION

[0074] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0075] Embodiment 1:

[0076] like Figure 1-Figure 8As shown, the transfer device for screwdrivers and healing caps in the implant system for preventing accidental swallowing and aspiration comprises a fixed cover body 1 and a clamping sleeve 2 embedded in the bottom of the fixed cover body 1; a fixing hole 11 connected to the inner cavity of the clamping sleeve 2 is opened on the top surface of the fixed cover body 1; a clamping assembly 21 is provided in the inner cavity of the clamping sleeve 2; a screwdriver 3 is inserted into the inner cavity of the clamping sleeve 2 through the fixing hole 11; a healing cap / cover screw 4 is put into the inner cavity of the clamping sleeve 2 from the port thereof and is clamped and fixed by the clamping assembly 21; the screwdriver 3 is inserted into the inner cavity of the clamping sleeve 2 The tip of the screwdriver 3 can contact and cooperate with the screw hole at the top of the healing cap / cover screw 4; the screwdriver 3 and the healing cap / cover screw 4 are integrated on the transfer device outside the patient's mouth, and then the whole device is moved into the patient's mouth. Under the clamping state of the transfer device, the screwdriver 3 is manipulated to pre-screw the healing cap / cover screw 4 onto the implant platform, and after unlocking the clamping component 21 to release the healing cap / cover screw 4, the healing cap / cover screw 4 is continued to be tightened, and then the transfer device is taken out, and the screwdriver 3 is fixed and taken out together. In this way, the transfer effect without the loosening and falling of the instrument is achieved.

[0077] The clamping assembly 21 includes two symmetrically arranged clamping arms. Each clamping arm is composed of a rubber clip 211, a telescopic key 212 and a return spring 213; the telescopic key 212 includes a first connecting rod 2121, a second connecting rod 2122 and a button 2123.

[0078] Two groups of windows 22 are symmetrically provided on the side wall of the clamping sleeve 2, each group of windows 22 has two windows, and the first connecting rod 2121 and the second connecting rod 2122 of each side clamping arm respectively pass through the two windows 22 on the same side and are detachably connected to the rubber clip 211 in the inner cavity of the clamping sleeve 2, and the first connecting rod 2121 and the second connecting rod 2122 are vertically connected to the button 2123 at the same time. The two connecting rods form a stable supporting effect on the rubber clip 211, which facilitates the transmission of the pressure on the telescopic key 212 as a whole to the rubber clip 211. By pressing the telescopic keys 212 on both sides of the clamping sleeve 2, the rubber clips 211 on both sides can clamp and fix the healing cap / cover screw 4 from both sides.

[0079] The locking structure of the telescopic key 212 is a tooth groove 2124 in the form of a strip protrusion provided on the second connecting rod 2122, and a convex tooth 221 formed on the inner wall of the window 22, and the convex tooth 221 meshes with the tooth groove 2124. When the button 2123 is pressed so that the first connecting rod 2121 and the second connecting rod 2122 are both pressed into the inner cavity of the clamping sleeve 2, the tooth groove 2124 on the second connecting rod 2122 meshes with the convex tooth 221 on the inner wall of the window 22 to produce a locking effect, limiting the movement of the second connecting rod 2122 in the direction of extending out of the clamping sleeve 2, so that the rubber clip 211 fixed by the double-sided connecting rods maintains a stable clamping state.

[0080] The unlocking structure of the telescopic key 212 is the upper edge of the button 2123 extending outward from the connection end of the first connecting rod 2121. Pressing the upper edge of the button 2123 causes the first connecting rod 2121 and the second connecting rod 2122 to tilt slightly within the range of the window 22, so that the tooth groove 2124 on the second connecting rod 2122 is out of contact with the convex teeth 221 on the inner wall of the window 22. After the two-sided connecting rods are manually pulled out, the rubber clip 211 connected to the connecting rods returns to its original position and is out of contact with the healing cap / cover screw 4, releasing the clamping effect.

[0081] The resetting effect of the telescopic key 212 is that the two ends of the resetting spring 213 are respectively connected to the button 2123 and the side wall of the clamping sleeve 2. When the telescopic key 212 is in a locked state, the resetting spring 213 is in a compressed state. When the upper edge of the button 2123 is pressed to unlock, as the tooth groove 2124 on the second connecting rod 2122 is out of contact with the convex tooth 221 on the inner wall of the window 22, the elastic recovery effect of the resetting spring 213 ejects the button 2123 away from the clamping sleeve 2, and the two rubber clips 211 are separated from the healing cap / cover screw 4, the clamping effect is released, and the clamping assembly 21 is reset to its initial position.

[0082] Embodiment 2:

[0083] like Figure 1-Figure 8 As shown, since the transfer device needs to be a reusable medical device, it needs to enter the patient's oral cavity. In order to facilitate medical cleaning and disinfection and to have more beneficial effects, the material of the transfer device is improved on the basis of the unchanged scheme of Example 1:

[0084] The fixed cover 1 is made of medical rubber, which ensures that it can maintain relatively stable physical and chemical properties under high-frequency sterilization and disinfection. In addition, the medical rubber material can also provide an appropriate amount of elastic deformation, which is conducive to the fitting of the fixed cover 11 and the supporting sleeve, and is conducive to improving the restraint force on the screwdriver 33.

[0085] The aperture size of the fixing hole 1111 is designed to be smaller than the diameter of the handle of the screwdriver 3. The inner wall of the fixing hole 1111 has a squeezing and clamping effect on the handle of the screwdriver 3, thereby enhancing the stability of the screwdriver 3 installed on the transfer device.

[0086] It is worth mentioning that thickening the top portion of the fixed cover body 1 to more than 20% of the length of the screwdriver 3 handle can maximize the restraining effect of the fixing hole 11 on the screwdriver 3 and prevent the screwdriver 3 from swinging; but thickening it by more than 40% will cause the volume of the transferor to be too large and affect the operation.

[0087] The rubber clip 211 is also made of medical rubber. The elastic effect of the rubber clip 211 can increase the contact area between the rubber clip 211 and the healing cap / cover screw 4, increase the friction force, and thus improve the clamping effect.

[0088] The clamping sleeve 2 is made of medical metal material. Since the clamping sleeve 2 needs to be used as a support for the telescopic key 212, it is necessary to maintain its structural strength and avoid deformation. Therefore, medical metal material is most suitable. It will not cause serious oxidation corrosion due to high-frequency sterilization and disinfection operations, and can provide sufficient structural strength to support the locking effect of the telescopic key 212.

[0089] The first connecting rod 2121, the second connecting rod 2122 and the key 2123 in the telescopic key 212 are all made of the same medical metal material in order to: meet the sterilization and disinfection requirements; stably support the rubber clip 211; and avoid forming a galvanic cell effect and chemical corrosion.

[0090] Embodiment 3:

[0091] like Figure 1-Figure 8 As shown, without changing Example 1 or Example 2, in order to prevent the transfer device from being loosened as a whole and falling into the patient's mouth, the transfer device needs to be designed to prevent it from being loosened as a whole.

[0092] The fixed cover 1 is designed to be an elliptical column, which is convenient for fitting and placing in the gap between missing teeth in the mouth. Rope holes 12 are provided at both ends of the long axis of the elliptical top surface of the elliptical column. The traction rope 5 can be tied in the rope hole 12, and the other end of the traction rope 5 is put on the doctor's working wrist to prevent the transfer device from falling as a whole. Alternatively, the traction rope 5 is connected from head to tail to form a rope loop, one part of which is fixed in the rope hole 12, and the other part is looped around the doctor's working wrist to prevent the transfer device from falling as a whole.

[0093] Embodiment 4:

[0094] like Figure 1-Figure 8 As shown, without changing the embodiment 1, embodiment 2 or embodiment 3, in order to improve the clamping effect of the rubber clip 211 on the healing cap / cover screw 4, the rubber clip 211 is arc-shaped. In order to more clearly describe the shape of the rubber clip 211, the rubber clip 211 is projected onto the top surface of the fixed cover body 1 for description.

[0095] The orthographic projections of the two rubber clips 211 on the top surface of the fixed cover are two arcs. The size of the center angle of the arc and the length of the arc diameter determine the length of the arc. Therefore, the center angle is limited to be greater than or equal to 90° and less than 180°. Keep the single arc between a quarter arc and a half arc. Avoid the arc length being too large, which causes the mirrored arcs at both ends to squeeze and overlap each other at the edge.

[0096] Taking the Straumann implant system as an example, the largest diameter of the commonly used healing cap / cover screw is 7mm. In order to ensure the contact area between the two rubber clips and the edge of the 7mm healing cap / cover screw to improve stability, the shape and size of the two rubber clips are both selected to be two half-circle arcs with an inner diameter of 7mm. The two rubber clips are buckled from both sides to form a circular ring that wraps around the healing cap / cover screw. Alternatively, the shape of the rubber clip is a quarter-circle arc with an inner diameter greater than 7mm, and the two rubber clips clamp the healing cap / cover screw from both sides.

[0097] To facilitate the detachable connection of the rubber clip 211, tenons 2125 are provided at the ends of the first connecting rod 2121 and the second connecting rod 2122, and tenon holes 2111 are provided on the back side of the rubber clip 211 corresponding to the connection positions of the first connecting rod 2121 and the second connecting rod 2122, so that the tenon 2125 at the end of the first connecting rod 2121 and the tenon 2125 at the end of the second connecting rod 2122 can be respectively inserted into the two tenon holes 2111 of the rubber clip 211. This connection structure is convenient for installation or disassembly, can speed up the replacement of the rubber clip 211, and improve work efficiency.

[0098] Embodiment 5:

[0099] like Figure 1-Figure 8 As shown, based on Example 1, in order to correctly operate the transfer device in implant clinics and avoid accidents caused by misoperation, this embodiment provides a transfer device application method for a screwdriver and a healing cap in an implant system that prevents accidental swallowing and aspiration, including the following steps:

[0100] S1: Connect and assemble the fixed cover body 1 and the clamping sleeve 2 to form the transfer device body;

[0101] S2: insert the tip of the screwdriver 3 into the inner cavity of the clamping sleeve 2 from the fixing hole 11, so that the handle of the screwdriver 3 is restricted in the fixing hole 11 and cannot be separated;

[0102] S3: Place the healing cap / cover screw 4 to be transferred during surgery into the inner cavity of the clamping sleeve 2, and press the double-sided telescopic key 212 to clamp the healing cap / cover screw 4 with the two rubber clips 211. At the same time, the tooth grooves 2124 on the second connecting rod 2122 and the convex teeth 221 on the inner wall of the window 22 engage with each other to form a stable limiting support effect, limit the position of the rubber clip 211, and keep it in a clamping state;

[0103] S4: adjusting the insertion depth of the screwdriver 3 so that the tip of the screwdriver 3 fits into the screw opening of the top surface of the healing cap / cover screw 4;

[0104] S5: The transfer device is transferred to the implant platform in the patient's mouth for surgical installation, and the transfer device transfers the screwdriver 3 and the healing cap / cover screw 4 simultaneously;

[0105] S6: Manipulate the screwdriver 3 to pre-fix the healing cap / cover screw 4 to the implant platform in the patient's mouth;

[0106] S7: Press the upper edge of the button 2123 to disengage the tooth groove 2124 on the second connecting rod 2122 from the convex tooth 221 on the inner wall of the window 22, thereby releasing the limiting effect and causing the telescopic button 212 to pop out as a whole under the action of the reset spring 213, thereby releasing the healing cap / covering screw 4;

[0107] S8: Continue to manipulate the screwdriver 3 to tighten and fix the healing cap / cover screw 4 to complete its installation on the implant platform in the patient's mouth;

[0108] S9: Take out the transfer tool, and the transfer tool takes out the screwdriver 3;

[0109] S10: Pull out the screwdriver 3 from the fixing hole 11 on the fixing cover 1 and disinfect it for later use.

[0110] The various technical features in the above embodiments can be combined arbitrarily as long as there is no conflict or contradiction between the combinations of features. Due to space limitations, this article does not describe them one by one.

[0111] The present invention is not limited to the above-mentioned embodiments. If various changes or modifications of the present invention do not depart from the spirit and scope of the present invention, and if these changes and modifications fall within the scope of the claims and equivalent technologies of the present invention, the present invention is also intended to include these changes and modifications.

Claims

1. A transfer device for a screwdriver and a healing cap in an implant system to prevent accidental swallowing and aspiration, characterized in that: It comprises a detachably connected fixed cover body and a clamping sleeve; a fixing hole for inserting a screwdriver handle is provided on the top surface of the fixed cover body; a clamping assembly for clamping a healing cap / covering screw is provided in the inner cavity of the clamping sleeve; the fixing hole is connected to the inner cavity of the clamping sleeve, so that the screwdriver can cooperate with the healing cap / covering screw clamped by the clamping assembly; the fixed cover body is in the shape of an elliptical column, and rope threading holes are symmetrically provided at both ends of the long axis of its elliptical top surface, and a traction rope is matched in the rope threading holes; the clamping assembly comprises two symmetrically arranged clamping arms; any of the clamping arms comprises a rubber clip and a telescopic key; the rubber clip is arranged in the inner cavity of the clamping sleeve, and one end of the telescopic key passes through the clamping sleeve A window is provided on the side wall of the tube and is detachably connected to the rubber clip, and the other end protrudes from the side wall of the clamping sleeve; the telescopic key comprises a first connecting rod, a second connecting rod and a button; the first connecting rod and the second connecting rod are parallel to each other and one end located in the inner cavity of the clamping sleeve is connected to the rubber clip, and one end of the two connecting rods protruding from the side wall of the clamping sleeve is vertically connected to the button; the end of the button connected to the first connecting rod protrudes to form an upper edge; a tooth groove is formed on the rod body of the second connecting rod, and a convex tooth is formed on the inner side wall of the window cooperating with the second connecting rod, and the tooth groove is engaged in the convex tooth; any clamping arm also includes a reset spring; one end of the reset spring is connected to the button, and the other end is connected to the side wall of the clamping sleeve.

2. The screwdriver and healing cap transfer device in the implant system for preventing accidental swallowing and aspiration according to claim 1, characterized in that: The cross section of the rubber clip is in the shape of an arc when viewed from above, and the center angle of the arc of its orthographic projection on the top surface of the fixed cover body is greater than or equal to 90° and less than 180°.

3. The screwdriver and healing cap transfer device in the implant system for preventing accidental swallowing and aspiration according to claim 1, characterized in that: The side wall of the clamping sleeve is stepped; the top pipe opening of the clamping sleeve is detachably embedded in the bottom cover opening of the fixed cover body.

4. The screwdriver and healing cap transfer device in the implant system for preventing accidental swallowing and aspiration according to claim 3, characterized in that: The fixed cover body is made of medical rubber; the thickness of the top of the fixed cover body is 20-40% of the length of the screwdriver handle fixed by the fixed cover body; and the inner diameter of the fixing hole is smaller than the diameter of the screwdriver handle.

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