阅读说明：本技术 一种断根拔除用拔牙手动钻及其方法 (Tooth extraction manual drill for extracting broken roots and method thereof ) 是由 张丹 赵君雄 于 2020-09-09 设计创作，主要内容包括：一种断根拔除用拔牙手动钻,包括：手柄、颈部、工作部,所述的手柄与颈部连接,颈部与工作部连接,工作部用于与断根连接,所述的颈部为光螺杆,所述的工作部为自攻螺丝,所述的工作部尖端锋利,尖端后段直径快速增大,形成卡环。所述的一种断根拔除用拔牙手动钻前端设置尖锐的尖头和自攻螺丝,用于旋进断根的根管中固定,固定后连带断根一起拔出,断根就轻松取出了。(A tooth extraction hand drill for extracting a broken root comprises: handle, neck, working portion, handle and neck be connected, the neck is connected with working portion, working portion is used for being connected with disconnected root, the neck be the smooth screw rod, working portion be self tapping screw, the most advanced sharpness of working portion, most advanced back end diameter increases fast, forms the snap ring. The front end of the tooth extraction hand drill for extracting the broken root is provided with a sharp pointed end and a self-tapping screw, the sharp pointed end and the self-tapping screw are used for screwing in the root canal of the broken root for fixation, the broken root is extracted together with the broken root after fixation, and the broken root is easily taken out.)

1. The utility model provides a broken root is pulled out with manual brill of extracing tooth which characterized in that includes: handle, neck, working portion, handle and neck be connected, the neck is connected with working portion, working portion is used for being connected with disconnected root, the neck be the smooth screw rod, working portion be self tapping screw, the most advanced sharpness of working portion, most advanced back end diameter increases fast, forms the snap ring.

2. The manual tooth extraction drill for extracting a broken root according to claim 1, further comprising: the ring, the winding reel, the magnetic head, the line, inhale the iron, the ring set up the winding reel, the winding reel pass through line connection magnetic head, the handle set up inhale the iron, the magnetic head can inhale the iron that inhales on the handle.

3. The manual tooth extraction drill for extracting the broken root according to claim 1, wherein the working part is a screw with threads on the surface, the cross section of the threads is triangular, the threads are thick at the position close to the screw and narrow and sharp at the position far away from the screw.

4. The hand-operated tooth extractor for extracting a broken root according to claim 1, wherein the diameter of the retainer ring is 0.3-1 mm.

5. The hand-operated tooth extractor for extracting a broken root according to claim 1, wherein the distance between the retainer ring and the tip of the working portion is 1 mm.

6. The hand-operated tooth extractor for extracting a broken root according to claim 1, wherein the taper of the working portion above the retainer ring is 0.02 to 0.04.

7. The hand-operated tooth extractor for extracting a broken root according to claim 2, wherein a spring is provided in said winding reel.

8. The hand-operated tooth extractor for extracting a broken root according to claim 2, wherein the magnet is embedded in the handle.

9. A tooth extraction hand drill for extracting a broken root is characterized in that the use method comprises the following steps:

step 1: cutting off the root of the patient by using a dental elevator;

step 2: selecting a root extraction manual drill with proper specification according to the diameter of the root canal with broken roots to screw into the root canal with broken roots for fixation;

and step 3: the manual tooth extraction drill is matched with the tooth extraction elevator to extract a broken root which is fixed with the manual tooth extraction drill and is used for extracting the broken root, and the process of extracting the broken root is finished.

Technical Field

The invention belongs to the field of dental extraction equipment in stomatology, and relates to equipment for tooth broken root extraction.

Background

Tooth extraction is a common operation in stomatology, and most of the tooth extraction except for the extraction of a small amount of whole teeth are root extractions or stumps, mainly root extractions caused by trauma, and stumps left by dental crown caries. In addition, when the whole tooth is pulled out, the tooth is generally cut and then pulled out in blocks, so that the tooth pulling wound can be reduced, and if the tooth is cut during the extraction of wisdom teeth, the broken root can be remained. The broken root is that the tooth root is separated from the tooth body, the tooth root is left in the alveolar bone independently, when the broken root is removed, the tooth elevator is required to be inserted into the gap between the broken root and the alveolar bone to loosen the broken root, and then the broken root is lifted out (pried out) from the alveolar pit in a lever mode. However, the alveolar bone wound is inevitably enlarged by the method of using the dental elevator to lift out the broken root, adjacent teeth are loosened due to improper use of the dental elevator, the dental elevator stabs surrounding soft tissues, or the broken root is pushed into a maxillary sinus or a mandibular nerve tube, or even to a gap between the bottoms of the mouths, and the dental alveolus where the broken root is located is narrow and cannot be assisted by using tools such as dental forceps, so that a dentist needs a tool which can take out the broken root in cooperation with the dental elevator, the dental elevator wound cannot be enlarged during the use of the tool, and the defect of reducing the dental elevator is further facilitated.

Disclosure of Invention

The purpose of the invention is: provides a tooth extraction tool, which can take out the broken root in cooperation with a tooth extraction elevator, does not enlarge the tooth extraction wound when in use, and is beneficial to reducing the defects of the tooth extraction elevator.

The technical scheme adopted by the invention is as follows: a tooth extraction hand drill for extracting a broken root comprises: the handle is connected with the neck, the neck is connected with the working part, the working part is used for being connected with a broken root, the neck is a smooth screw rod, the working part is a self-tapping screw, the sharp end of the working part is sharp, and the diameter of the rear section of the sharp end is rapidly increased to form a clamping ring;

preferably, the tooth extraction hand drill for extracting a broken root further comprises: the winding device comprises a ring, a winding reel, a magnetic head, a wire and a magnet, wherein the ring is provided with the winding reel, the winding reel is connected with the magnetic head through the wire, the handle is provided with the magnet, and the magnetic head can suck the magnet on the handle;

preferably, the working part is formed by arranging threads on the surface of a screw, the cross section of each thread is triangular, the thread is thick at the position close to the screw, and the thread is narrow and sharp at the position far away from the screw;

preferably, the surface of the handle is provided with concave-convex textures;

preferably, the length of the working part is 5-12 mm;

preferably, the diameter of the tip of the working part is 0.1-0.8 mm;

preferably, the diameter of the snap ring is 0.3-1 mm;

preferably, the distance between the clamping ring and the tip of the working part is 1 mm;

preferably, the taper of the working part above the clamping ring is 0.02-0.04;

preferably, a spring is arranged in the winding reel;

preferably, the spring is a clockwork spring;

preferably, the magnet is embedded in the handle;

preferably, the magnetic head is a magnet;

preferably, the spool comprises: shell, reel, bearing, spring and outlet, the reel both ends set up the bearing, reel and spring coupling, connecting wire on the reel, the line connection magnetic head, the line passes through the outlet business turn over reel, the shell supports reel, bearing and spring for supporting and the protection component, the shell is connected with the ring.

A first using method of the tooth extraction hand drill for extracting the broken root comprises the following steps:

step 1: cutting off the root of the patient by using a dental elevator;

step 2: selecting a root extraction manual drill with proper specification according to the diameter of the root canal with broken roots to screw into the root canal with broken roots for fixation;

and step 3: the manual tooth extraction drill is matched with the tooth extraction elevator to extract a broken root which is fixed with the manual tooth extraction drill and is used for extracting the broken root, and the process of extracting the broken root is finished.

A second using method of the tooth extraction manual drill for extracting the broken root comprises the following steps:

step 1: selecting a root extraction manual drill with proper specification according to the diameter of the root canal with broken roots to screw into the root canal with broken roots for fixation;

step 2: cutting off the root of the patient by using a dental elevator;

and step 3: the manual tooth extraction drill is matched with the tooth extraction elevator to extract a broken root which is fixed with the manual tooth extraction drill and is used for extracting the broken root, and the process of extracting the broken root is finished.

Advantageous effects

The front end of the tooth extraction hand drill for extracting the broken root is provided with the sharp pointed end and the self-tapping screw, the sharp pointed end and the self-tapping screw are used for screwing into the root canal of the broken root for fixing, the broken root is extracted together with the broken root after the fixing, and the broken root is easily taken out. The deep part of the tooth root is an organ such as a mandibular nerve tube or a maxillary sinus, particularly, the distance between the apical foramen of posterior teeth such as wisdom teeth and the mandibular nerve tube is very close, if the instrument extends out of the apical foramen for a long length, the nerve in the mandibular nerve tube is easily damaged, and sequela such as lower lip numbness is caused, or the instrument extends out of the apical foramen for a long length and possibly pierces through the bottom plate of the maxillary sinus to enter the maxillary sinus. The narrowest part of the root canal is located about 1mm above the apical pore after dissection, and the snap ring arranged near the tip of the working part of the tooth extraction hand drill for extracting the broken root has the function that when the working part extends into the root canal deeply, in order to prevent the tip of the working part from extending out of the broken apical pore, the quickly thickened snap ring can be clamped at the narrowest part of the root canal to prevent the working part from extending out of the apical pore. The working part adopts spiral self-tapping threads, the cross section of the threads is triangular, the edges are sharp, the threads can be easily screwed into the root canal, and the diameter of the working part from the clamping ring to the neck part is gradually increased, so that the invention can tightly connect and fix the broken root without extending into a deeper root canal. Handle surface sets up concave-convex texture and helps preventing that the hand is smooth, does benefit to the finger and has an effect rotatory, and the mode that the magnet adopted to bury completely sets up in handle rubber, and the condition such as rust can not appear in contactless air, makes magnet and magnetic head not have physical contact moreover, the material of magnet for can be attracted by magnet like: iron.

A broken root is pulled out and is used manual brill of drawing out tooth with finger operation, it is individual less, probably fall in the throat in oral cavity and cause danger in the use, preferred scheme this application adopts the setting in the handle can be by the material (magnet) of magnet attraction, form a complete set and use the ring again, the ring is worn on dentist's operative hand's finger, the spool is towards the palm, be connected the magnetic head of handle and ring during the use, the wired connection ring of magnetic head makes a broken root pull out and removes with the manual brill of drawing out tooth in safe state and does not have the risk of dropping, remove the magnetic head on the handle after using up, the magnetic head is withdrawed by the reel of ring promptly, it is very convenient, can not influence the normal operating on hand of doctor, recommend the ring to wear on dentist's operative hand's middle finger or ring finger. After the tooth extraction hand drill for extracting the broken root is connected with the broken root and then the tooth elevator is used for extracting the tooth, the situation that the broken root is pushed into a maxillary sinus or a mandibular nerve tube and even into a gap between the mouth and the bottom can not occur, the safety of the tooth extraction operation is improved, and after the broken root is fixed, a dentist can control the broken root by controlling the tooth extraction hand drill for extracting the broken root and cooperates with the tooth elevator to enable the tooth extraction operation to be completed more easily and safely. The tooth extraction hand drill for extracting the broken root is provided with various models and specifications to adapt to the thickness of the root canal of the tooth, the diameter is from thin to thick, from No. 6, No. 8, No. 10, No. 15 to No. 100, the taper of the working part is provided with various specifications, and from 0.02 to 0.04, namely, the diameter is increased by 0.02 to 0.04mm when the length is increased by lmm. The diameter of the magnetic head is smaller than that of the handle, so that the operation of a doctor is not hindered. The wire is wound on the winding drum of the winding drum, the torsion of the spring acts on the winding drum, the wire is kept in the tension withdrawn to the winding drum, and the tension of the wire can be adjusted by replacing different springs or adjusting the torsion of the springs.

Description of the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the handle fully-buried magnet of the present invention;

FIG. 3 is a detail view of the working portion of the present invention;

FIG. 4 is a schematic view of a ring structure according to the present invention;

FIG. 5 is a schematic view of the finger ring connection handle of the present invention;

FIG. 6 is a schematic view of the invention showing the ring disconnected from the handle;

fig. 7 is a detail view of the spool of the present invention.

Reference numerals:

1 handle, 2 neck, 3 working parts, 4 smooth screw rods, 5 self-tapping screws, 6 clamping rings, 7 threads, 8 magnet, 9 finger rings, 10 winding drums, 11 magnetic heads, 12 springs, 13 wires, 14 shells, 15 winding drums, 16 bearings and 17 wire outlets.

Detailed Description