CN115105230A - Combined lantern ring system for taking out broken instrument in root canal - Google Patents
Combined lantern ring system for taking out broken instrument in root canal Download PDFInfo
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- CN115105230A CN115105230A CN202210787228.4A CN202210787228A CN115105230A CN 115105230 A CN115105230 A CN 115105230A CN 202210787228 A CN202210787228 A CN 202210787228A CN 115105230 A CN115105230 A CN 115105230A
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- 210000004262 dental pulp cavity Anatomy 0.000 title claims abstract description 27
- 238000003825 pressing Methods 0.000 claims description 18
- 238000005520 cutting process Methods 0.000 claims description 17
- 238000009434 installation Methods 0.000 claims description 11
- 238000000605 extraction Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000001737 promoting effect Effects 0.000 claims description 2
- 241000446313 Lamella Species 0.000 description 11
- 238000000034 method Methods 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 5
- 238000002560 therapeutic procedure Methods 0.000 description 4
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 208000024216 Periapical disease Diseases 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000004268 dentin Anatomy 0.000 description 1
- 229910001000 nickel titanium Inorganic materials 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 210000004746 tooth root Anatomy 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C5/00—Filling or capping teeth
- A61C5/40—Implements for surgical treatment of the roots or nerves of the teeth; Nerve needles; Methods or instruments for medication of the roots
- A61C5/46—Nerve extractors, e.g. needles; Means for removing broken parts of endodontic instruments
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- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The invention discloses a combined lantern ring system for taking out a broken instrument in a root canal, which relates to the technical field of root canal treatment instruments and comprises an outer sleeve, wherein a loop rope pipe assembly partially extending out of the outer sleeve is arranged in the outer sleeve; the sleeve is driven to move back and forth by the pushing and conducting block and the adjustable mounting assembly in a matching mode, so that the size of the sleeve ring is adjusted, the force is easier to control in the mode of pushing the sleeve, a doctor can operate under a microscope more conveniently, and meanwhile, when the filamentous loop rope cannot be used due to fatigue damage or is inappropriate in size, the filamentous loop rope can be replaced locally.
Description
Technical Field
The invention relates to the technical field of root canal treatment instruments, in particular to the technical field of combined lantern ring systems for taking out broken instruments in root canals.
Background
Endodontic disease and periapical disease are common clinical diseases, root canal therapy is the most effective method for treating the endodontic disease and the periapical disease at present, and the root canal therapy technology is developed into a complete set of complete theoretical system comprising rich content, enriched theory and fine operation technology. The endodontic procedure includes root canal preparation, root canal disinfection and root canal filling. Wherein the quality of the root canal preparation is an important factor in determining the success or failure of the root canal treatment. In the process of canal therapy, especially in the process of root canal preparation, various instruments are used, such as a NiTi instrument, a broach, a stainless steel file, a reamer and the like, and because of the complexity of the root canal preparation process, the defects of the treatment technology and other factors, complications of the root canal therapy sometimes occur, and instrument fracture is one of the more common complications (instrument fracture mainly means that the instrument is separated during preparation, and the fractured end is retained in the root canal).
This situation causes great difficulty in endodontic treatment once it occurs. In the current treatment of such cases, the instruments broken off in the root canal are first removed and then a complete endodontic treatment is performed. Removal of the breaking instrument is a very time consuming task with low success rates and risks of lateral perforation of the canal wall. The general steps for removing the break-off instrument are: the method comprises the steps of firstly using a root canal trephine to remove or using a root canal ultrasonic working tip to remove a small amount of dentin around the broken instrument to loosen the broken instrument, creating a gap at the tail end of the broken instrument, and then using an in-root canal broken instrument extraction device to extract the in-root canal broken instrument.
The patent with publication number "CN 107595416 a" and patent name "extractor for root canal fracture instruments" discloses the following: the dental root canal breaking instrument extractor consists of a clamping end, a locking control mechanism and a handheld part, wherein the clamping ring is a small ring formed by a filament with two ends penetrating into a hollow thin tube, the two ends of the filament pass through the hollow thin tube and then pass through a fixed joint, and then the filament is fixed on a steerable runner, the runner is fixed in a shell through a wheel shaft, and one part of the runner is exposed out of the shell.
The patent with publication number "CN 211325733U" and patent name "needle-breaking device" discloses the following: a broken needle taking device comprises a working head and a clamping line; the front end of the working head is configured to be capable of extending into the root canal; a threading cavity is arranged inside the working head, and a first through hole is arranged at the front end of the working head and is used for communicating the threading cavity with an external environment;
the clamping wire penetrates through the threading cavity, and the front end of the clamping wire penetrates out of the threading cavity from the first through hole; a loop is formed by surrounding between the part of the clamping line which penetrates out of the threading cavity from the first perforation and the end surface of one end of the first perforation facing the external environment, and the clamping line is configured to move in the threading cavity so as to shorten the length of the part of the clamping line which penetrates out of the threading cavity from the first perforation, thereby shortening the circumference of the loop.
The patent publication "CN 213372614U" entitled "an intra-endodontic separator instrument extractor" discloses the following: the separator extractor in the root canal comprises a body, wherein a first bearing is fixedly mounted in the middle of the upper end of the body, a rotating rod is fixedly connected to a middle shaft of the first bearing, a first wire collecting roller is fixedly connected to the lower end of the rotating rod, a first steel wire is movably connected to the inside of the first wire collecting roller, a second wire collecting roller is arranged on the inner side of the right end of the body, the lower end of the second wire collecting roller is fixedly connected with the middle shaft of a second bearing fixed on the inner side wall of the body, the upper end of the second wire collecting roller is fixedly connected with a positioning plate penetrating through the body, the positioning plate is a T-shaped plate, positioning holes are formed in the positioning plate and the body and correspond to each other, and a second steel wire is movably connected to the inside of the second wire collecting roller.
The broken instrument extractor disclosed in the patent is of a rope sleeving type, when the broken instrument extractor is used, a sleeve is fixed, the size of a sleeve ring (the sleeve ring formed by the sleeve rope) at the other end of the sleeve is adjusted by pulling the sleeve rope at one end of the sleeve, and the broken instrument extractor is a small-sized instrument, so that the size of the sleeve rope is limited, the diameter of the sleeve rope is small, the strength is low, the sleeve rope is easy to break if an operator does not operate properly in the process of pulling the sleeve rope, in addition, the sleeve rope is easy to fatigue and damage after being used for a period of time, a new sleeve rope needs to be replaced, and the diameter of the sleeve rope is small during replacement, so that the problems that the replacement of the sleeve rope of the existing broken instrument extractor is time-consuming and labor-consuming and low in replacement efficiency exist; meanwhile, the broken instrument extractor disclosed by the patent has the problem that a user cannot operate conveniently or the stability of the broken instrument extractor is poor by one hand due to the mode of dragging the loop rope.
How to solve the above technical problems has been a direction of effort for those skilled in the art.
Disclosure of Invention
The invention aims to: in order to solve the technical problem, the invention provides a combined lantern ring system for extracting a fracture instrument in a root canal.
The invention specifically adopts the following technical scheme for realizing the purpose:
the utility model provides a modular lantern ring system that rupture apparatus took out in root canal, includes the outer tube, be provided with the partly lasso rope pipe assembly that extends the outer tube in the outer tube, lasso rope pipe assembly includes the sleeve pipe and sets up the filiform lasso rope that extends the sleeve pipe and constitute the lantern ring in intraductal one end of cover, be provided with the adjustable installation component that is used for installing lasso rope pipe assembly in the outer tube, be provided with in the outer tube and promote the push conduction piece that the sleeve pipe removed and realize lantern ring size adjustment with adjustable installation component cooperation, the outer tube outside is provided with can dismantle with the outer tube and be connected and provide the handheld power component of thrust for promoting the conduction piece.
Preferably, the filiform casing rope is arranged in the casing pipe in a folded mode, the central end of the filiform casing rope extends out of one end of the casing pipe to form a lantern ring with adjustable size, and two free ends of the filiform casing rope penetrate through the other end of the casing pipe to be connected together through the pressing part.
Preferably, the adjustable mounting assembly comprises a fixed mounting seat for inserting a sleeve, a sleeve seat which is arranged in the fixed mounting seat and used for compressing the sleeve and can slide, a reset mechanism which is arranged in the fixed mounting seat and used for resetting the sleeve seat, and a positioning and compressing mechanism which is arranged at the end part of the fixed mounting seat and used for compressing a compressing part to prevent the filiform casing rope from moving.
Preferably, the fixed mounting seat comprises a cylindrical body, a containing groove, a first hole and a second hole, wherein the containing groove is formed in the length direction of the cylindrical body and used for placing the sleeve seat, the first hole is formed in one end of the cylindrical body and communicated with the containing groove, the second hole is formed in the other end of the cylindrical body and communicated with the containing groove, the axial lines of the first hole and the second hole coincide with each other and allow the sleeve to pass through, and a locking hole which is communicated with the second hole and used for installing the positioning and pressing mechanism is radially formed in the cylindrical body.
Preferably, a notch communicated with the first hole and the accommodating groove is formed in the columnar body at the first hole;
the reset mechanism is a reset spring, and the reset spring is sleeved on the sleeve between the first hole and the sleeve seat.
More preferably, the sleeve seat sets up the square piece in the holding tank including sliding, square piece is provided with the centre bore that allows the sleeve pipe to pass along the slip direction, be provided with on the square piece and be a plurality of screw locking holes that the quadrature form link up with the centre bore, all be provided with in every screw locking hole and be used for compressing tightly sheathed tube locking screw, the holding tank is extended to the part of square piece, the cylindricality is kept away from breach one end and is provided with the cutting face A that the part is located the holding tank.
Preferably, the pushing and conducting block comprises a cylinder with the same diameter as the cylinder body and a contact column which is integrally formed with the cylinder and matched with the handheld power assembly, a cutting face B matched with the cutting face A is arranged on the cylinder, and the cutting face A and the cutting face B form a complete cylinder when matched.
Preferably, the outer sleeve comprises a cylinder body and a connecting pipe with a conical head, wherein the cylinder body is in threaded connection with one end of the cylinder body, and the handheld power assembly is in threaded connection with the other end of the cylinder body.
Preferably, handheld power component includes that intermediate lamella and symmetry set up two grip blocks in the intermediate lamella both sides, intermediate lamella one end is provided with the connector with cylinder threaded connection, the spliced pole that intermediate lamella one end and two grip blocks are connected, the intermediate lamella is close to connector one side middle part and is provided with the guiding hole who link up the connector, be provided with in the guiding hole and promote conducting block complex sliding block, the sliding block is close to spliced pole one end symmetry and articulates there are two connecting rods, and the free end of two connecting rods is articulated with the grip block that corresponds.
Preferably, a plurality of anti-skidding grooves are formed in the outer sides of the two clamping plates and the middle plate at equal intervals.
The invention has the following beneficial effects:
1. the invention has simple structure, reasonable design and convenient use, when in work, the rope sleeving pipe component is assembled firstly, then the rope sleeving pipe component is arranged in the adjustable installation component, the rope sleeving pipe component is arranged in the outer sleeve after being matched with the pushing conduction block, the sleeve end with the sleeve ring in the rope sleeving pipe component extends out of the outer sleeve, the other end of the outer sleeve is connected with the handheld power component, the handheld power component is operated in a manual mode, the sleeve is driven to move back and forth by matching the pushing conduction block with the adjustable installation component, further, the size of the sleeve ring is adjusted, the force is easier to master in the form of pushing the sleeve, the using time of the filiform rope is longer, when the rope cannot be used due to timely fatigue damage, the filiform rope can be directly and partially replaced, other parts can be continuously used without integral replacement, the combined mechanism reduces the cost, and all parts of the device are assembled by detachable parts, other parts are damaged and can be replaced independently without integral replacement, so that the cost is further saved.
2. The handheld power assembly is convenient to operate when in use, sliding blocks matched with the pushing and conducting blocks are arranged in the guide holes of the structure, the sliding blocks are symmetrically hinged with two connecting rods near one end of the connecting column, and the free ends of the two connecting rods are hinged with the corresponding clamping plates; the design of this kind of structure is very reasonable, and humanized. Two grip blocks and the impartial interval in intermediate lamella outside are provided with a plurality of antiskid grooves, and the setting in antiskid groove can increase user's hand and handheld power component's frictional force, has increased the stability of equipment use.
3. Meanwhile, the sleeve can be pre-bent by a pre-bending device, so that the direct-view operation under a microscope is facilitated; the diameters of the filiform loop ropes and the sleeve are smaller, so that time and labor are wasted when the filiform loop ropes are replaced, the filiform loop ropes, the sleeve and the sleeve seat can be replaced as a whole, and the replacement efficiency is improved; can also be made into a series of integral replacement parts with different lantern ring sizes, and is suitable for the breaking-off instruments with different diameters.
4. The adjustable mounting assembly comprises a fixed mounting seat for inserting a sleeve, a sleeve seat which is arranged in the fixed mounting seat and used for compressing the sleeve and can slide, a resetting mechanism which is arranged in the fixed mounting seat and used for resetting the sleeve seat, and a positioning and compressing mechanism which is arranged at the end part of the fixed mounting seat and used for compressing a compressing sleeve to prevent a filamentous loop rope from moving; the sleeve pipe seat has fixed the sleeve pipe in the installation component with adjustable can drive the sleeve pipe and remove, and the interior filiform lasso of sleeve pipe can not remove after being compressed tightly by positioning hold-down mechanism, adjusts the size of the lantern ring through the form that the sleeve pipe moves, filiform lasso is motionless, and canceling release mechanical system can make the sleeve pipe get back to initial position.
Drawings
FIG. 1 is a schematic disassembled view of the present invention;
FIG. 2 is a schematic view of the assembled external structure of the present invention;
FIG. 3 is a schematic view of the push conducting block, adjustable mounting assembly and sleeve configuration;
FIG. 4 is a schematic structural view of a fixed mount;
FIG. 5 is a schematic view of the construction of the cannula holder;
FIG. 6 is a schematic view of a push conductive block;
FIG. 7 is a schematic of the three-dimensional structure of FIG. 4;
FIG. 8 is a schematic of the three-dimensional structure of FIG. 5;
FIG. 9 is a schematic structural view of the outer sleeve;
FIG. 10 is a schematic view of the hand held power module in its natural state;
FIG. 11 is a schematic view of the hand held power assembly in a clamped condition;
FIG. 12 is a perspective view of FIG. 6;
reference numerals: 1-hand-held power component, 1.1-connecting column, 1.2-intermediate plate, 1.3-clamping plate, 1.4-guide hole, 1.5-sliding block, 1.6-connecting head, 1.7-connecting rod, 2-cylinder, 3-pushing guide block, 3.1-contact column, 3.2-cylinder, 3.3-cutting surface B, 4-adjustable mounting component, 4.1-sleeve seat, 4.1/1-central hole, 4.1/2-square block, 4.1/3-screw locking hole, 4.2-positioning pressing mechanism, 4.3-resetting mechanism, 4.4-fixed mounting seat, 4.4/1-hole two, 4.4/2-cutting surface A, 4.4/3-locking hole, 4.4/4-holding groove, 4.4/5-notch, 4.4/6-hole one, 4.4/7-column body, 5-external sleeve, 6-connecting tube, 7-lantern ring and 8-pressing component.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally arranged when products of the present invention are used, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements indicated must have specific orientations, be constructed in specific orientations, and operated, and thus, cannot be construed as limiting the present invention.
Example 1
As shown in fig. 1 to 11, this embodiment provides a combined lantern ring system for taking out broken instruments in root canals, which includes an outer sleeve, a lantern rope tube assembly partially extending out of the outer sleeve is provided in the outer sleeve, the lantern rope tube assembly includes a sleeve 5 and a filiform lantern rope arranged in the sleeve 5, one end of which extends out of the sleeve 5 to form a lantern ring 7, an adjustable installation assembly 4 for installing the lantern rope tube assembly is provided in the outer sleeve, a push conduction block 3 which is matched with the adjustable installation assembly 4 to push the sleeve 5 to move so as to adjust the size of the lantern ring 7 is provided in the outer sleeve, and a handheld power assembly 1 which is detachably connected with the outer sleeve and provides thrust for pushing the conduction block 3 is provided outside the outer sleeve.
When the device works, the rope sleeving pipe component is assembled firstly, then the rope sleeving pipe component is installed in the adjustable installation component, the rope sleeving pipe component is placed in the outer sleeve after being matched with the pushing conducting block, the sleeve end with the sleeve ring in the rope sleeving pipe component extends out of the outer sleeve, the other end of the outer sleeve is connected with the handheld power component, the handheld power component is operated in a manual mode, the pushing conducting block is matched with the adjustable installation component to drive the sleeve to move back and forth, and further, the size of the sleeve ring is adjusted, the force is easier to control in the form of pushing the sleeve, so that the using time of the filamentous rope sleeving is longer, when the rope cannot be used due to fatigue damage, the filamentous rope sleeving can be directly and locally replaced, other parts can be continuously used without integral replacement, the cost of the combined mechanism is reduced, all parts of the device are assembled by detachable parts, other parts are damaged, and can be independently replaced without integral replacement, further saving costs.
Example 2
The embodiment is further optimized on the basis of embodiment 1, and specifically comprises the following steps:
the filamentous loop rope is arranged in the sleeve 5 in a folded manner, the central end of the filamentous loop rope extends out of one end of the sleeve 5 to form a loop 7 with adjustable size, and two free ends of the filamentous loop rope penetrate through the other end of the sleeve 5 and are connected together through a pressing part 8.
The adjustable mounting assembly 4 comprises a fixed mounting seat 4.4 for inserting the sleeve 5, a sleeve seat 4.1 which is arranged in the fixed mounting seat 4.4 and is used for pressing the sleeve 5 and can slide, a resetting mechanism 4.3 which is arranged in the fixed mounting seat 4.4 and is used for resetting the sleeve seat 4.1, and a positioning and pressing mechanism 4.2 which is arranged at the end part of the fixed mounting seat 4.4 and is used for pressing a pressing part 8 to prevent the filiform casing rope from moving.
The fixed mounting seat 4.4 comprises a cylindrical body 4.4/7, an accommodating groove 4.4/4 arranged in the length direction of the cylindrical body 4.4/7 and used for accommodating the sleeve seat 4.1, a first hole 4.4/6 arranged at one end of the cylindrical body 4.4/7 and communicated with the accommodating groove 4.4/4, and a second hole 4.4/1 arranged at the other end of the cylindrical body 4.4/7 and communicated with the accommodating groove 4.4/4, wherein the axial lines of the first hole 4.4/6 and the second hole 4.4/1 are superposed and allow the sleeve 5 to pass through, and a locking hole 4.4/3 which is communicated with the second hole 4.4/1 and used for mounting and positioning the pressing mechanism 4.2 is radially arranged on the cylindrical body 4.4/7. The positioning and pressing mechanism 4.2 is a locking screw, and the locking hole 4.4/3 is a threaded hole.
A notch 4.4/5 which is communicated with the first 4.4/6 hole and the accommodating groove 4.4/4 is arranged on the 4.4/7 columnar body at the first 4.4/6 hole;
the reset mechanism 4.3 is a reset spring which is sleeved on the sleeve 5 between the first hole 4.4/6 and the sleeve seat 4.1.
The sleeve seat 4.1 comprises a square block 4.1/2 arranged in an accommodating groove 4.4/4 in a sliding mode, a central hole 4.4/1 allowing a sleeve 5 to penetrate through is formed in the square block 4.1/2 in the sliding direction, a plurality of thread locking holes 4.1/3 which are communicated with the central hole 4.4/1 in an orthogonal mode are formed in the square block 4.1/2, a locking screw used for pressing the sleeve 5 is arranged in each thread locking hole 4.1/3, the accommodating groove 4.4/4 extends out of the square block 4.1/2, and a cutting surface A4.4/2, located on the accommodating groove 4.4/4, is arranged at one end, far away from the notch 4.4/5, of the cylindrical body 4.4/7.
The pushing and conducting block 3 comprises a cylinder 3.2 with the same diameter as that of the cylindrical body 4.4/7 and a contact column 3.1 which is integrally formed with the cylinder 3.2 and matched with the handheld power assembly 1, a cutting face B3.3 matched with the cutting face A4.4/2 is arranged on the cylinder 3.2, and the cutting face A4.4/2 and the cutting face B3.3 form a complete cylinder when matched.
The outer tube includes cylinder 2 and the connecting pipe 6 of taking the cone of 2 one end threaded connection of cylinder, handheld power component 1 passes through the screw thread form with the cylinder 2 other end and is connected.
And a plurality of anti-skid grooves are arranged on the outer sides of the two clamping plates 1.3 and the middle plate 1.2 at equal intervals. The friction that sets up in antiskid groove can increase user's hand and handheld power component has increased the stability that equipment used.
Claims (9)
1. The utility model provides a lantern ring system that rupture apparatus took out in combined root canal, includes the outer tube, its characterized in that, be provided with the partly mantle rope pipe assembly that extends the outer tube in the outer tube, mantle rope pipe assembly includes sleeve pipe (5) and sets up the filiform mantle rope that one end extended sleeve pipe (5) and constitutes lantern ring (7) in sleeve pipe (5), be provided with installation component (4) with adjustable that are used for installing mantle rope pipe assembly in the outer tube, be provided with in the outer tube and promote the promotion conduction piece (3) that sleeve pipe (5) removal realized lantern ring (7) size adjustment with adjustable installation component (4) cooperation, the outer tube outside is provided with can dismantle with the outer tube and be connected and provide handheld power component (1) of thrust for promoting conduction piece (3).
2. A modular endodontic snapping instrument extraction collar system according to claim 1, wherein the filamentous noose is arranged in a doubled-over form inside the cannula (5), the central end of the filamentous noose extending out of one end of the cannula (5) forming a size adjustable collar (7), the two free ends of the filamentous noose passing through the other end of the cannula (5) being connected together by a compressing member (8).
3. The combined type collar system for extracting the endodontic fracture instrument according to claim 2, wherein the adjustable mounting assembly (4) comprises a fixed mounting seat (4.4) for inserting the casing (5), a slidable casing seat (4.1) arranged in the fixed mounting seat (4.4) for pressing the casing (5), a reset mechanism (4.3) arranged in the fixed mounting seat (4.4) for resetting the casing seat (4.1), and a positioning and pressing mechanism (4.2) arranged at the end of the fixed mounting seat (4.4) for pressing the pressing part (8) to prevent the filiform casing rope from moving.
4. The combined intra-canal fracture instrument extraction collar system of claim 3, it is characterized in that the fixed mounting seat (4.4) comprises a cylindrical body (4.4/7), an accommodating groove (4.4/4) which is arranged in the length direction of the cylindrical body (4.4/7) and used for accommodating the sleeve seat (4.1), a first hole (4.4/6) which is arranged at one end of the cylindrical body (4.4/7) and communicated with the accommodating groove (4.4/4), and a second hole (4.4/1) which is arranged at the other end of the cylindrical body (4.4/7) and communicated with the accommodating groove (4.4/4), the axial lead of the first hole (4.4/6) is coincident with that of the second hole (4.4/1) and allows the sleeve (5) to pass through, and the cylindrical body (4.4/7) is radially provided with a locking hole (4.4/3) which is communicated with the second hole (4.4/1) and is used for installing a positioning and pressing mechanism (4.2).
5. The combined collar system for removing the endodontic fracture instrument according to claim 4, wherein the cylindrical body (4.4/7) at the first hole (4.4/6) is provided with a notch (4.4/5) which is communicated with the first hole (4.4/6) and the accommodating groove (4.4/4);
the reset mechanism (4.3) is a reset spring, and the reset spring is sleeved on the sleeve (5) between the first hole (4.4/6) and the sleeve seat (4.1).
6. The combined intra-canal fracture instrument extraction collar system of claim 4, it is characterized in that the sleeve seat (4.1) comprises a square block (4.1/2) which is arranged in the accommodating groove (4.4/4) in a sliding way, the square block (4.1/2) is provided with a central hole (4.4/1) allowing the sleeve (5) to pass through along the sliding direction, a plurality of thread locking holes (4.1/3) which are communicated with the central hole (4.4/1) in an orthogonal mode are arranged on the square block (4.1/2), a locking screw for pressing the sleeve (5) is arranged in each thread locking hole (4.1/3), the part of the square block (4.1/2) extends out of the accommodating groove (4.4/4), and one end, far away from the notch (4.4/5), of the cylindrical body (4.4/7) is provided with a cutting surface A (4.4/2) which is partially positioned on the accommodating groove (4.4/4).
7. A combined intra-canal break-off instrument extraction collar system according to claim 6, characterized in that the push conducting block (3) comprises a cylinder (3.2) with the same diameter as the cylinder (4.4/7), a contact post (3.1) integrated with the cylinder (3.2) and cooperating with the hand-held power assembly (1), the cylinder (3.2) is provided with a cutting face B (3.3) cooperating with the cutting face A (4.4/2), and the cutting face A (4.4/2) forms a complete cylinder when cooperating with the cutting face B (3.3).
8. The combined collar system for removal of an endodontic fracture instrument according to claim 1, wherein the outer sleeve comprises a tapered connection tube (6) which is screwed to one end of the cylinder (2) and the hand-held power assembly (1) is screwed to the other end of the cylinder (2).
9. The modular endodontic stop instrument extraction collar system of claim 1, it is characterized in that the hand-held power component (1) comprises a middle plate (1.2) and two clamping plates (1.3) which are symmetrically arranged at the two sides of the middle plate (1.2), one end of the middle plate (1.2) is provided with a connector (1.6) in threaded connection with the cylinder (2), one end of the middle plate (1.2) is connected with a connecting column (1.1) of the two clamping plates (1.3), the middle part of one side of the middle plate (1.2) close to the connector (1.6) is provided with a guide hole (1.4) penetrating through the connector (1.6), a sliding block (1.5) matched with the pushing and conducting block (3) is arranged in the guide hole (1.4), the sliding block (1.5) is symmetrically hinged with two connecting rods (1.7) near one end of the connecting column (1.1), and the free ends of the two connecting rods (1.7) are hinged with the corresponding clamping plates (1.3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210787228.4A CN115105230B (en) | 2022-07-06 | 2022-07-06 | Combined lantern ring system for taking out root canal internal fracture instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210787228.4A CN115105230B (en) | 2022-07-06 | 2022-07-06 | Combined lantern ring system for taking out root canal internal fracture instrument |
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| CN115105230B (en) | 2023-11-03 |
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