CN220213107U - Broken root remover - Google Patents

Abstract

The utility model discloses a root-breaking remover, which comprises a handle and a needle body, wherein the needle body is detachably connected with the handle; the needle body is provided with a tapping part, the tapping part comprises a tapping thread and a tapping groove, the tapping thread is arranged on the outer wall surface of the needle body in a surrounding mode along the extending direction of the needle body, and the tapping groove is suitable for accommodating tooth root tissues. Medical staff makes the tooth portion of attacking insert root of tooth tissue through rotating the handle, utilizes the tooth thread of attacking screw in root of tooth tissue, and the tooth groove of attacking acceptdly contacts root of tooth tissue, guarantees effectual extraction contact surface, and rethread operating handle outwards extracts needle body and root of tooth tissue, makes root of tooth tissue and periodontal ligament tissue separation, accomplishes root of tooth tissue's clearance of pulling out. The utility model has good tooth extraction effect and is convenient to operate and use.

Description

Broken root remover

Technical Field

The utility model relates to the technical field of dental instruments, in particular to a root breaking remover.

Background

In the diagnosis and treatment process of oral surgery, minimally invasive removal of teeth such as blocked teeth, multiple teeth, stumps, residual crowns and the like is generally required for patients. The existing tooth extraction apparatus is used for treating broken roots through the root stiles, but the tooth extraction stiles are large in overall size, the working edge of the tooth extraction stiles is difficult to penetrate into the space between the tooth roots and the alveolar bones, and the professional requirements on clinicians are high; and the root tip is used for providing lateral acting force for the tooth root, the tooth root is extruded to the opposite side under the lateral acting force, the tooth extraction space is narrow, the tooth extraction is difficult, and the root breaking and extraction effects are poor.

Disclosure of Invention

Therefore, the technical problem to be solved by the utility model is that the broken root pulling-out instrument in the related technology has the defects of difficult whole broken tooth pulling-out and poor broken root pulling-out effect.

The utility model provides a root-breaking remover, comprising:

a handle;

the needle body is configured to be detachably connected with the handle; the needle body is provided with a tapping portion, the tapping portion comprises tapping threads and tapping grooves, the tapping threads are arranged on the outer wall surface of the needle body in a surrounding mode along the extending direction of the needle body, and the tapping grooves are suitable for accommodating tooth root tissues.

Optionally, the handle and the needle body have a connected state and a disconnected state;

in the connection state, the assembly end of the needle body is penetrated and relatively fixed and limited in the handle;

in the separated state, the needle body and the handle are separated from relative fixed limit.

Optionally, the root-breaking remover further comprises a locking piece, wherein the locking piece is sleeved on the outer side of the needle body, in the connection state, the locking piece is connected with the handle, and the assembly end of the needle body is limited and locked and connected between the locking piece and the handle.

Optionally, a first connecting thread is arranged on the handle, a second connecting thread is arranged on the locking piece, and the first connecting thread and the second connecting thread are connected in a conformal manner; and/or

The needle body is provided with a connecting key at the assembly end, the locking piece is provided with a key groove, the connecting key and the key groove are correspondingly configured, and the key groove is arranged at one end of the locking piece, which is close to the handle.

Optionally, an accommodating cavity is arranged in the handle and is used for accommodating the assembly end of the needle body and at least part of the locking piece;

the locking piece is provided with a through hole cavity, in the connection state, the needle body penetrates through the through hole cavity, at least part of the through hole cavity is arranged in the accommodating cavity, and the through hole cavity and the accommodating cavity are coaxially arranged.

Optionally, the handle and the needle body are configured to be slidably connected along the needle body, the handle is a flexible handle, and a circumferential limiting structure is arranged between the handle and the needle body.

Optionally, the circumferential limit structure includes a limit protrusion and a limit groove extending along the axial direction of the needle body, at least part of the needle body is limited and locked in the handle, one of the limit protrusion and the limit groove is arranged on the handle, and the other is arranged on the needle body.

Optionally, in a direction away from the tapping end, the radial section of the tapping thread distributed around the needle body is gradually enlarged; the tapping threads and the tapping grooves are correspondingly arranged around the axial screw of the needle body.

Optionally, at least one holding part is arranged on the handle, and the holding part is arranged on the outer contour surface of the handle.

The technical scheme provided by the utility model has the following advantages:

1. the utility model provides a broken root remover which comprises a handle and a needle body, wherein the needle body is detachably connected with the handle; the needle body is provided with a tapping part, the tapping part comprises a tapping thread and a tapping groove, the tapping thread is arranged on the outer wall surface of the needle body in a surrounding mode along the extending direction of the needle body, and the tapping groove is suitable for accommodating tooth root tissues.

The broken root remover with the structure enables a medical staff to insert a tapping part into tooth root tissues by rotating a handle, and the tapping part is screwed into the tooth root tissues by using tapping threads, the tapping groove is accommodated and contacted with the tooth root tissues, so that an effective pulling contact surface is ensured, and then the needle body and the tooth root tissues are pulled outwards by operating the handle, so that the tooth root tissues and periodontal ligament tissues are separated, the removal and cleaning of the tooth root tissues are completed, the broken root removal difficulty is reduced, and the broken root remover is suitable for minimally invasive removal of broken roots or tiny root tip tissues of patients.

2. The broken root remover provided by the utility model has a handle and a needle body in a connection state and a separation state; in the connection state, the assembly end of the needle body is penetrated and relatively fixed and limited in the handle; in the separated state, the needle body and the handle are separated from relative fixed limit.

When the handle and the needle body are required to be assembled and connected, the assembly end of the needle body is penetrated and relatively fixed and limited in the handle, and when the handle and the needle body are required to be separated, the assembly end of the needle body is directly separated from the handle, so that the handle can be connected with different needle bodies in a replaceable manner to adapt to tooth root tissues which are not to be used, and the practicability of the broken root remover is improved; the assembly is convenient and fast, and the use and operation are simple.

3. The broken root remover provided by the utility model further comprises a locking piece, wherein the locking piece is sleeved on the outer side of the needle body, and in a connecting state, the locking piece is connected with the handle, and the assembly end of the needle body is limited and locked and connected between the locking piece and the handle.

The broken root remover with the structure locks the assembly end of the needle body in the handle through the locking piece, strengthens the connection strength between the needle body and the handle, avoids the separation of the handle and the needle body when medical staff operate the handle, and is beneficial to improving the safety of minimally invasive surgery.

4. In the broken root remover provided by the utility model, in the direction away from the tapping end, the radial section of the tapping thread which is distributed around the needle body is gradually enlarged; the tapping threads and the tapping grooves are correspondingly arranged around the axial spiral of the needle body.

The broken root remover with the structure utilizes the tap threads with variable diameters and enlarged arrangement to be screwed into the tooth root tissue so as to enlarge and prop open the tooth root tissue and increase the connection contact force between the tooth root tissue and the tap grooves, thereby promoting the extraction process of the tooth root tissue.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a broken root extractor according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a needle structure of a root-breaking remover according to an embodiment of the present utility model;

FIG. 3 is a schematic view of one embodiment of a needle in a root-breaking remover according to the present utility model;

FIG. 4 is a schematic view of a shell in a broken root extractor according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a locking member of a root breaking remover according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a lock in a broken root extractor according to an embodiment of the present utility model;

reference numerals illustrate:

1-a handle; 11-an accommodating cavity; 12-first connection threads; 13-a grip;

2-a needle body; 21-tapping part; 211-tapping threads; 212-tapping the tooth groove; 213-drill point; 22-linkage;

3-locking members; 31-via cavities; 32-keyway; 33-second connection thread.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Furthermore, the drawings are illustrative and not shown to actual scale. Relative dimensions and proportions between the parts shown in the drawings are sometimes exaggerated or reduced in size, for the sake of clarity and convenience, and any arbitrary dimensions are merely exemplary and are not intended to limit the present utility model. The technical features of the different embodiments of the utility model described below may be combined with one another as long as they do not conflict with one another.

Example 1

The embodiment provides a broken root remover, which is suitable for minimally invasive removal of tooth tissues such as tooth roots in oral cavities. As shown in fig. 1, the root-breaking remover comprises a handle 1 and a needle body 2, wherein the needle body 2 is detachably connected with the handle 1; the needle body 2 has an assembly end connected to the handle 1 and a tapping end for tapping into the root tissue. The tapping end of the needle body 2 is provided with a tapping portion 21, and a medical person rotates the handle 1 to insert the tapping portion 21 into the tooth root tissue.

As shown in fig. 2 and 3, the tapping portion 21 includes a tapping thread 211 and a tapping groove 212, the tapping thread 211 is circumferentially disposed on the outer wall surface of the needle body 2 along the extending direction of the needle body 2, and the tapping groove 212 is adapted to accommodate tooth root tissue. The tapping threads 211 may be configured to be either left-handed or right-handed, and are specifically configured according to the actual requirements.

The needle body 2 is provided with a drill tip 213, and the drill tip 213 is arranged at the distal end of the needle body 2 so as to promote the tapping part 21 to be screwed into the tooth root tissue and ensure reliable contact embedding force; in some embodiments, the length dimension of the drill tip 213 is set to 0.5-1 mm. The drill point 213 and the tapping thread 211 are matched and transitionally arranged to promote smooth transition on the outer side wall surface of the tapping part 21, so that the resistance of screwing the tapping part 21 into the tooth root tissue is reduced. When the broken root is removed in a minimally invasive manner, a proper screwing point is selected on the tooth root tissue, the screwing point can be determined by a micropore punching mode, the drill tip 213 is abutted against the screwing point, and the drill tip 213 and the tapping thread 211 enter the tooth root tissue by rotating the handle 1.

As shown in fig. 2, in a direction away from the tapping end, the tapping threads 211 are disposed in a gradually enlarged diameter in a radial section that is laid around the needle body 2; the tapping threads 211 and the tapping grooves 212 are disposed in correspondence around the axial screw of the needle body 2. The tap thread 211 arranged in a variable diameter and enlarged manner is screwed into the tooth root tissue to enlarge and prop open the tooth root tissue, so that the connecting contact force between the tooth root tissue and the tap groove 212 is increased, and the extraction process of the tooth root tissue is promoted.

As a modification, the tap thread 211 and the tap groove 212 may have the same radial dimension in the extending direction of the tap end.

In a specific embodiment, the needle body 2 is a flexible needle, and the needle body 2 can be made of medical stainless steel with good flexibility, for example, nickel-titanium alloy, nickel-iron alloy and iron alloy; the needle body 2 can be adapted and bent as required in the actual root-breaking plucking operation to obtain an advantageous operation position, and is helpful to reduce damage to oral tissues.

The broken root remover provided by the embodiment is shown in fig. 1, wherein a handle 1 and a needle body 2 are in a connection state and a separation state; in the connection state, the assembly end of the needle body 2 is penetrated and relatively fixed and limited in the handle 1; in the separated state, the needle body 2 and the handle 1 are separated from relative fixed limit. When the handle 1 and the needle body 2 are required to be assembled and connected, the assembly end of the needle body 2 is penetrated and relatively fixed and limited in the handle 1, and when the handle 1 and the needle body 2 are required to be separated, the assembly end of the needle body 2 is directly separated from the handle 1, so that the handle 1 can be connected with different needle bodies 2 in a replaceable manner to adapt to tooth root tissues which are not required to be used, and the practicability of the broken root remover is improved; the assembly is convenient and fast, and the use and operation are simple.

As shown in fig. 1, the root-breaking remover further comprises a locking member 3, the locking member 3 is sleeved on the outer side of the needle body 2, the locking member 3 is connected with the handle 1 in a connection state, and the assembly end of the needle body 2 is limited and locked between the locking member 3 and the handle 1.

As shown in fig. 5 and 6, the locking member 3 is provided with a through hole cavity 31, and in the connected state, the needle body 2 is inserted into the through hole cavity 31, at least part of the through hole cavity 31 is disposed in the accommodating cavity 11, and the through hole cavity 31 and the accommodating cavity 11 are coaxially disposed. The assembling end of the needle body 2 is provided with a connecting key 22, and the locking piece 3 is provided with a key groove 32; when the needle body 2 and the locking piece 3 are assembled, the locking piece 3 is sleeved on the needle body 2, the connecting key 22 and the key groove 32 are correspondingly and slidably connected, the connecting key 22 is circumferentially distributed along the needle body 2, the key groove 32 is circumferentially arranged along the inner side wall surface of the through hole cavity 31, and the key groove 32 and the connecting key 22 are correspondingly configured in a conformal manner.

As shown in fig. 4 to 6, the handle 1 is provided with a first connecting thread 12, the locking member 3 is provided with a second connecting thread 33, the first connecting thread 12 and the second connecting thread 33 are connected in a conformal manner, and the handle 1 and the locking member 3 are screwed or unscrewed through the threaded connection between the first connecting thread 12 and the second connecting thread 33. The keyway 32 sets up the one end that is close to handle 1 at retaining member 3, under the connected state, through the screw thread cooperation locking needle body 2 between handle 1 and retaining member 3, needle body 2 is spacing radially with retaining member 3 through keyway 32 and connecting key 22. The handle 1 is internally provided with a containing cavity 11, and the containing cavity 11 is used for containing the assembly end of the needle body 2 and the locking piece 3 screwed into the handle 1.

The broken root remover provided by the embodiment locks the assembly end of the needle body 2 in the handle 1 through the locking piece 3, strengthens the connection strength between the needle body 2 and the handle 1, avoids the separation of the handle 1 and the needle body 2 when medical staff operate the handle 1, and is beneficial to improving the safety of minimally invasive surgery.

As a variant, the handle 1 and the needle body 2 are arranged in a sliding connection along the needle body 2, the handle 1 is a flexible handle 1, and a circumferential limit structure is arranged between the handle 1 and the needle body 2. Wherein, circumference limit structure includes spacing protruding and the spacing groove of setting along needle body 2 axial extension, and the spacing locking of partial needle body 2 is in handle 1, in spacing protruding and spacing groove, one of them sets up on handle 1, and wherein another sets up on needle body 2. Firstly, screwing the tapping part 21 on the needle body 2 into the tooth root tissue, and when the needle body 2 is pulled out, medical staff directly pulls out the needle body 2 outwards to drive the tooth root tissue to be pulled out; or other clamping forceps may be used to extract the root tissue.

Further, the handle 1 can be set as a flexible main body, and is made of flexible resin, silica gel and other materials, axial friction force is configured between the handle 1 and the needle body 2, and relative rotation between the handle 1 and the needle body 2 is restrained through a circumferential limiting structure, so that a medical person can rotate the handle 1 to screw the tapping part 21 into tooth root tissues; the relative sliding between the handle 1 and the needle body 2 is avoided through the axial friction force, so that a medical staff can operate the handle 1 outwards, and the needle body 2 drives the tooth root tissue to be pulled out.

As shown in fig. 4, the handle 1 is provided with a grip portion 13, and the grip portion 13 is provided on an outer contour surface of the handle 1. The holding part 13 can be provided with a cylinder structure or a triangular column structure with variable diameter so as to be convenient for the medical staff to operate and hold; in some embodiments, the holding part 13 may be configured as a holding protrusion, where the holding protrusion is protruding on the outer wall of the handle 1, and the holding protrusion is used to increase the contact force between the hand of the medical staff and the handle 1, so as to avoid slipping of the handle 1 and ensure the stability of minimally invasive root removal.

The broken root remover that this embodiment provided, medical staff makes the tooth portion 21 insert the root tissue through rotating handle 1, utilize the tooth portion of attacking 211 screw in root tissue, attack tooth groove 212 and accept the contact root tissue, guarantee effectual extraction contact surface, rethread operating handle 1 outwards extract needle body 2 and root tissue, make root tissue and periodontal ligament tissue separation, accomplish the clearance of pulling out of root tissue, reduce broken root and pull out the difficult degree, its adaptation is in the wicresoft of each broken root or tiny root point tissue to the patient and pulls out, it has good broken root and pulls out the effect.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims (10)

1. A root-breaking remover, comprising:

a handle (1);

the needle body (2) is configured to be detachably connected with the handle (1); the needle body (2) is provided with a tapping portion (21), the tapping portion (21) comprises a tapping thread (211) and a tapping groove (212), the tapping thread (211) is arranged on the outer wall surface of the needle body (2) in a surrounding mode along the extending direction of the needle body (2), and the tapping groove (212) is suitable for accommodating tooth root tissues.

2. The root-cutting extractor according to claim 1, characterized in that the handle (1) and the needle body (2) have a connected state and a disconnected state;

in the connection state, the assembly end of the needle body (2) is penetrated and relatively fixed and limited in the handle (1);

in the separated state, the needle body (2) and the handle (1) are separated from relative fixed limit.

3. The root-breaking remover according to claim 2, further comprising a locking member (3), wherein the locking member (3) is sleeved on the outer side of the needle body (2), and in the connected state, the locking member (3) is connected with the handle (1), and the assembly end of the needle body (2) is limited and locked and connected between the locking member (3) and the handle (1).

4. A root-cutting extractor according to claim 3, wherein the handle (1) is provided with a first connecting thread (12), the locking member (3) is provided with a second connecting thread (33), and the first connecting thread (12) and the second connecting thread (33) are connected in a conformal manner; and/or

The needle is characterized in that a connecting key (22) is arranged at the assembly end of the needle body (2), a key groove (32) is formed in the locking piece (3), the connecting key (22) and the key groove (32) are correspondingly configured, and the key groove (32) is arranged at one end, close to the handle (1), of the locking piece (3).

5. A root-cutting extractor according to claim 3, wherein a housing cavity (11) is provided in the handle (1), the housing cavity (11) being adapted to house the mounting end of the needle body (2) and at least part of the locking member (3);

the locking piece (3) is provided with a through hole cavity (31), in the connection state, the needle body (2) is arranged in the through hole cavity (31) in a penetrating mode, at least part of the through hole cavity (31) is arranged in the accommodating cavity (11), and the through hole cavity (31) and the accommodating cavity (11) are coaxially arranged.

6. The root-breaking remover according to claim 1, characterized in that the handle (1) and the needle body (2) are configured to be slidably connected along the needle body (2), the handle (1) is a flexible handle (1), and a circumferential limiting structure is arranged between the handle (1) and the needle body (2).

7. The root-cutting extractor according to claim 6, wherein the circumferential limit structure comprises a limit projection and a limit groove extending axially along the needle body (2), at least part of the needle body (2) is limited and locked in the handle (1), one of the limit projection and the limit groove is arranged on the handle (1), and the other is arranged on the needle body (2).

8. The root-breaking remover according to claim 1, characterized in that the tapping thread (211) is arranged in a gradually increasing radial cross-section around the needle body (2) in a direction away from the tapping end; the tapping thread (211) and the tapping groove (212) are correspondingly arranged around the axial screw of the needle body (2) together.

9. The root-breaking remover according to any of claims 1-8, characterized in that at least one gripping part (13) is provided on the handle (1), said gripping part (13) being provided on the outer contour surface of the handle (1).

10. The root-cutting extractor according to any one of claims 1-8, characterized in that the needle body (2) is provided as a flexible needle; and/or

The needle body (2) is provided with a drill tip (213), the drill tip (213) is arranged at the far end of the needle body (2), and the drill tip (213) and the tapping thread (211) are matched and transitionally arranged.