CN214632390U - Extracting device for broken apparatus in root canal - Google Patents
Extracting device for broken apparatus in root canal Download PDFInfo
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- CN214632390U CN214632390U CN202120243651.9U CN202120243651U CN214632390U CN 214632390 U CN214632390 U CN 214632390U CN 202120243651 U CN202120243651 U CN 202120243651U CN 214632390 U CN214632390 U CN 214632390U
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- beak
- pipe
- pull rod
- endodontic
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Abstract
The utility model discloses an extracting device of a broken instrument in a root canal, which comprises a ligature wire, a beak-shaped pipe, a handle pipe, a force applying ring, a pull rod and a spring; the front end of beak form pipe is buckled and is the slot, the rear end is connected with handle pipe front end intercommunication, the rotatable handle pipe that inserts of front end of pull rod, the rear end is the expansion portion, the middle part of ligature silk forms the lantern ring and the lantern ring is located outside beak form pipe front end, both ends are connected with the pull rod front end after going deep into beak form pipe and handle pipe, the spring housing is on the pull rod and spacing between handle pipe rear end and expansion portion, the afterburning ring cover is on the handle pipe and by beak form pipe rear end and expansion portion spacing. The device is rational in infrastructure, and it is easy to draw materials, with low costs, convenient operation, visual effectual, and is little to the destruction of root canal wall, and it is easy that disconnected machinery is got to the cover, and application scope is wide, and disconnected machinery takes out the success rate height, the clinical popularization of being convenient for.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to remove device of rupture apparatus in root canal.
Background
Endodontic and periapical diseases are common clinical conditions, and root canal therapy is the most effective treatment for endodontic and periapical diseases. However, complications of root canal treatment sometimes occur due to the presence of many factors, such as the complexity of the anatomical morphology of the root canal and defects in the treatment technique itself, and instrument breakage is one of the more common complications (instrument breakage mainly means separation of the instrument during preparation, with the broken end remaining in the root canal).
The presence of the fractured instruments makes it difficult to thoroughly clean and disinfect the root canal system, and residual infectious material makes the pulp and periapical disease persistent, resulting in failure of the root canal treatment. In addition, although the break of the appliance is not a medical accident, the patient is often difficult to accept the fact that foreign matters exist in the teeth, and if the medical treatment is not performed properly, doctor-patient disputes may be increased. Therefore, once the fracture of the instrument occurs, a correct treatment plan is established, and the effective extraction of the fractured instrument is very important.
Once the instrument is broken off in the root canal preparation process, the treatment principle is to extract the instrument as much as possible, and the current extraction methods mainly comprise two methods, namely non-operation and operation. The non-surgical method is the main preferred method, mainly by cutting dentin around the broken instrument with an ultrasonic working tip under a microscope, taking out the broken instrument by means of oscillation, or clamping and taking out the broken end of the instrument by a special device after exposing the broken end. The extraction devices for the fracture apparatus in the root canal are more, and the extraction device for the fracture apparatus invented abroad mainly comprises: iRS, Masserann suite, etc. Two similar taking-out devices exist in China, are already commercialized and are clinically used. The working principle of these devices is based on the extraction of the breaking instrument by the clamping technique of the cannula, with the following disadvantages: for the taking out of tiny stainless steel instruments, the success rate is high, and the broken nickel-titanium instruments with large diameters at the broken ends are difficult to clamp by the sleeve, or the clamping force is insufficient, so that the success rate of taking the broken nickel-titanium instruments out through the sleeve is low. Meanwhile, the devices also have the defects of complex structure, high operation difficulty, poor visibility and the like.
Along with the popularization of the root canal treatment technology, the popularization of the machine nickel titanium apparatus, the fracture of the nickel titanium apparatus in the root canal becomes common complications, the stainless steel apparatus is not easy to fracture, and an effective taking device is not available for the nickel titanium fracture apparatus at present, so how to design the fracture apparatus taking device which has the advantages of reasonable structure, easy material taking, low cost, convenient operation, good visual effect, small damage to the wall of the root canal, easy sleeving and taking of the fracture apparatus, wide application range and convenient clinical popularization has important significance for treating serious complications in the root canal treatment, namely apparatus fracture.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a device for taking out of apparatus breaks in root canal, the device is rational in infrastructure, and it is easy to draw materials, and is with low costs, convenient operation, and visual effect is good, and is little to the destruction of root canal wall, and it is easy that disconnected machinery is got to the cover, and application scope is wide, and disconnected machinery takes out the success rate height, the clinical popularization of being convenient for.
The utility model adopts the technical proposal that:
an extracting device of a broken apparatus in a root canal comprises a ligature wire, a beak-shaped pipe, a handle pipe, a force applying ring, a pull rod and a spring; the front end of beak form pipe is buckled and is the slot, the rear end is connected with handle pipe front end intercommunication, the rotatable handle pipe that inserts of front end of pull rod, the rear end is the expansion portion, the middle part of ligature silk forms the lantern ring and the lantern ring is located outside beak form pipe front end, both ends are connected with the pull rod front end after going deep into beak form pipe and handle pipe, the spring housing is on the pull rod and spacing between handle pipe rear end and expansion portion, the afterburning ring cover is on the handle pipe and by beak form pipe rear end and expansion portion spacing.
Preferably, the ligature wire is an orthodontic ligature wire and is made of austenitic stainless steel 0Cr18Ni9 material meeting the specification in GB/T1220-2007, the surface roughness Ra is not more than 3.2 mu m, the tensile strength is 640 MPa-980 MPa, and the ligature wire has corrosion resistance.
Preferably, the beak-shaped tube, the handle tube, the forcing ring, the spring and the pull rod are all made of medical grade stainless steel materials which can resist high temperature and high pressure sterilization.
Furthermore, the front end of the pull rod is hollow, a screw is arranged on a side hole of the hollow part, and two ends of the ligature wire are inserted into the hollow part and locked by the screw.
Furthermore, the rear end of the beak-shaped pipe is in threaded connection with the front end of the handle pipe.
Furthermore, the front section of the beak-shaped pipe is conical, the surface of the beak-shaped pipe is subjected to sand grinding treatment, and the rear section of the beak-shaped pipe has no taper.
Preferably, the anterior segment of the beak tube is 30mm long.
Furthermore, the outer surface of the stress application ring is provided with lines for increasing friction force.
Preferably, the internal diameter of the opening at the front end of the beak-shaped pipe is 0.41mm, which corresponds to the size of a 6.5-gauge injection needle.
Preferably, the ligature wire is 0.2mm in diameter.
The utility model has the advantages that:
the device is rational in infrastructure, and it is easy to draw materials, with low costs, convenient operation, visual effectual, and is little to the destruction of root canal wall, and it is easy that disconnected machinery is got to the cover, and application scope is wide, and disconnected machinery takes out the success rate height, the clinical popularization of being convenient for.
Drawings
Fig. 1 is a schematic structural view of an extracting device of the endodontic fracture instrument according to an embodiment of the present invention.
In the figure: 1-a collar; 2-ligaturing; 3-beak tube; 4-a screw; 5-a handle tube; 6-a stress ring; 7-a pull rod; 8-a spring; 9-enlargement.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in fig. 1, the extracting device of the endodontic fracture instrument comprises a ligature wire 2, a beak-shaped pipe 3, a handle pipe 5, a force applying ring 6, a pull rod 7 and a spring 8; the front end of beak form pipe 3 is buckled and is the slot, the rear end is connected with 5 front ends of handle pipe intercommunication, the rotatable handle pipe 5 that inserts of front end of pull rod 7, the rear end is expansion portion 9, the middle part of ligature silk 2 forms lantern ring 1 and lantern ring 1 is located outside the beak form pipe 3 front end, both ends are connected with pull rod 7 front end after going deep into beak form pipe 3 and handle pipe 5, spring 8 cover is on pull rod 7 and spacing between 5 rear ends of handle pipe and expansion portion 9, 6 covers of thrust augmentation ring on handle pipe 5 and by beak form pipe 3 rear end and expansion portion 9 spacing.
In the embodiment, the ligature wire 2 is preferably an orthodontic ligature wire, is made of austenitic stainless steel 0Cr18Ni9 material meeting the regulation in GB/T1220-2007, has the surface roughness Ra of not more than 3.2 μm, has the tensile strength of 640 MPa-980 MPa, and has the corrosion resistance; the orthodontic ligature wire has low price and easy material selection.
In this embodiment, the beak-shaped tube 3, the handle tube 5, the forcing ring 6, the spring 8 and the pull rod 7 are preferably made of medical grade stainless steel which can withstand high temperature and high pressure sterilization, and are safe to use.
As shown in fig. 1, in this embodiment, the front end of the pulling rod 7 is hollow, a screw 4 is provided on a side hole of the hollow portion, and both ends of the ligature wire 2 are inserted into the hollow portion and locked by the screw 4. The rear end of the beak-shaped pipe 3 is connected with the front end of the handle pipe 5 by screw thread.
As shown in fig. 1, in this embodiment, the front section of the beak-shaped tube 3 is tapered, the surface of the beak-shaped tube is frosted (friction force is increased), and the rear section of the beak-shaped tube has no taper, so that the operation under a microscope can be ensured not to block the view, and certain hardness can be ensured, which is convenient for the extraction operation. In this embodiment, the anterior segment of the beak tube 3 is preferably 30mm long to accommodate the use of root canals of different lengths and anterior and posterior root canals.
In this embodiment, the outer surface of the forcing ring 6 is provided with a texture for increasing the friction force, so as to facilitate the operation.
In this embodiment, the inner diameter of the opening at the front end of the beak tube 3 is preferably 0.41mm, corresponding to the size of a 6.5-gauge needle, and the diameter of the ligature wire 2 is preferably 0.2 mm.
The use method of the extracting device of the intraductal fracture instrument comprises the following steps:
before use, the patient needs to be diagnosed clearly by a doctor, and according to clinical history, general examination and X-ray examination, the prognosis of the affected tooth, the tooth position, the type of the broken instrument, the length of the broken instrument, the anatomical position relation with the root canal, the health condition and compliance of the patient and whether the patient can tolerate the micro root canal treatment or not are known, and after full evaluation, the patient can be further treated after informed consent;
preparation before operation: the operator needs to be familiar with the dissection of the root canal and is skilled in mastering the micro root canal operation technology, and the device needs to be sufficiently sterilized at high temperature and high pressure before use; preparing a microscope, a rubber dam, an ultrasonic device, an ultrasonic working tip and conventional instruments;
intraoperative procedure-a. establishing a linear entrance into the root canal; b. cutting dentin around the broken instrument by the ultrasonic working tip, increasing gaps and exposing the broken end of the instrument by about 1-2 mm; c. taking a section of ligature wire 2, folding the section of ligature wire into two strands, inserting the section of ligature wire from an opening at the front end of a beak-shaped pipe 3, extracting the section of ligature wire from the rear end of the beak-shaped pipe 3, inserting the section of ligature wire into the front end of a pull rod 7, locking the section of ligature wire by using a side screw 4, installing a handle pipe 5 with the beak-shaped pipe 3 through threads, and forming a lantern ring 1 with a corresponding size according to the diameter of a broken instrument for later use; d. under a microscope, the device is held by hands, and the tail part of the broken instrument is sleeved with the lantern ring 1 under direct vision; e. rotating the pull rod 7 to wind the double-strand ligature wire 2 and further locking the lantern ring 1 to break the instrument; f. keeping the position still, applying force to the rear end of the pull rod 7 by the hand-held force applying ring 6 to impact the enlarged part 9 to loosen and dislocate the broken instrument, taking out the broken instrument, if the broken instrument slips midway, repeating the previous operation until the instrument is taken out;
after the operation examination, the X-ray film is required to be shot for further definite diagnosis after the instrument is taken out, and the cutting condition of the root canal wall is evaluated at the same time, so that the subsequent root canal treatment is completed.
The device is rational in infrastructure, and it is easy to draw materials, with low costs, convenient operation, visual effectual, and is little to the destruction of root canal wall, and it is easy that disconnected machinery is got to the cover, and application scope is wide, and disconnected machinery takes out the success rate height, the clinical popularization of being convenient for.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (10)
1. The utility model provides a remove device of broken apparatus in root canal which characterized in that: comprises a ligature wire, a beak-shaped pipe, a handle pipe, a force applying ring, a pull rod and a spring; the front end of beak form pipe is buckled and is the slot, the rear end is connected with handle pipe front end intercommunication, the rotatable handle pipe that inserts of front end of pull rod, the rear end is the expansion portion, the middle part of ligature silk forms the lantern ring and the lantern ring is located outside beak form pipe front end, both ends are connected with the pull rod front end after going deep into beak form pipe and handle pipe, the spring housing is on the pull rod and spacing between handle pipe rear end and expansion portion, the afterburning ring cover is on the handle pipe and by beak form pipe rear end and expansion portion spacing.
2. The extraction device for an endodontic snap instrument of claim 1, wherein: the ligature wire is made of austenitic stainless steel 0Cr18Ni9 material according with the regulation in GB/T1220-2007, has the surface roughness Ra of not more than 3.2 mu m, the tensile strength of 640 MPa-980 MPa and the corrosion resistance.
3. The extraction device for an endodontic snap instrument of claim 1, wherein: the beak-shaped tube, the handle tube, the forcing ring, the spring and the pull rod are all made of medical stainless steel materials which can resist high-temperature and high-pressure sterilization.
4. The extraction device for an endodontic snap instrument of claim 1, wherein: the front end of the pull rod is hollow, a screw is arranged on a side hole of the hollow part, and two ends of the ligature wire are inserted into the hollow part and locked by the screw.
5. The extraction device for an endodontic snap instrument of claim 1, wherein: the rear end of the beak-shaped pipe is connected with the front end of the handle pipe through screw threads.
6. The extraction device for an endodontic snap instrument of claim 1, wherein: the front section of the beak-shaped pipe is conical, the surface of the beak-shaped pipe is subjected to sand grinding treatment, and the rear section of the beak-shaped pipe has no taper.
7. The endodontic extraction device of a fracturing instrument of claim 6 wherein: the anterior section of the beak-shaped tube was 30mm long.
8. The extraction device for an endodontic snap instrument of claim 1, wherein: the outer surface of the forcing ring is provided with lines for increasing friction force.
9. The extraction device for an endodontic snap instrument of claim 1, wherein: the inner diameter of the front end opening of the beak-shaped pipe is 0.41mm, which is equivalent to the size of a 6.5-gauge injection needle.
10. The extraction device for an endodontic snap instrument of claim 1, wherein: the diameter of the ligature wire is 0.2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120243651.9U CN214632390U (en) | 2021-01-28 | 2021-01-28 | Extracting device for broken apparatus in root canal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120243651.9U CN214632390U (en) | 2021-01-28 | 2021-01-28 | Extracting device for broken apparatus in root canal |
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| Publication Number | Publication Date |
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| CN214632390U true CN214632390U (en) | 2021-11-09 |
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| CN202120243651.9U Active CN214632390U (en) | 2021-01-28 | 2021-01-28 | Extracting device for broken apparatus in root canal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115105230A (en) * | 2022-07-06 | 2022-09-27 | 四川大学 | Combined lantern ring system for taking out broken instrument in root canal |
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2021
- 2021-01-28 CN CN202120243651.9U patent/CN214632390U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115105230A (en) * | 2022-07-06 | 2022-09-27 | 四川大学 | Combined lantern ring system for taking out broken instrument in root canal |
| CN115105230B (en) * | 2022-07-06 | 2023-11-03 | 四川大学 | Combined lantern ring system for taking out root canal internal fracture instrument |
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