CN207118942U - A kind of dental fractures screw extractor - Google Patents
A kind of dental fractures screw extractor Download PDFInfo
- Publication number
- CN207118942U CN207118942U CN201720158402.3U CN201720158402U CN207118942U CN 207118942 U CN207118942 U CN 207118942U CN 201720158402 U CN201720158402 U CN 201720158402U CN 207118942 U CN207118942 U CN 207118942U
- Authority
- CN
- China
- Prior art keywords
- soft rubber
- rubber sleeve
- bar portion
- supporting plate
- screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Dental Prosthetics (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
A kind of dental fractures screw extractor, including cutter hub, supporting plate, soft rubber sleeve, cutter hub is made up of the handle and bar portion of integral structure, it can be relatively rotated after the upper end of handle and the middle part connection of supporting plate, the working end of bar portion and one end of soft rubber sleeve connect, vestibule is provided with the other end of soft rubber sleeve, the orifice part of vestibule is taper；The bar portion of screw is interference fit with soft rubber sleeve, so as to realize that screw with soft rubber sleeve synchronous axial system, that is, takes out the screw to fracture.The utility model is simple in construction, easy to operate, low manufacture cost, and the screw that solves the problems, such as to fracture is difficult to take out.
Description
Technical field
The utility model belongs to field of medical auxiliary equipment, and especially a kind of dental fractures screw extractor.
Background technology
Center screw is the screw for being used to connect tooth implant and base station in tooth implantation system, and diameter is typically less than 1 millimeter,
It is link most weak in implant system, situation about fractureing often occurs, and section is usually located in tooth implant, general device
Tool is difficult to take out.
The content of the invention
The utility model provides a kind of dental and fractureed screw extractor, and the screw that solves the problems, such as to fracture is difficult to take out.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is：A kind of dental fractures screw extractor,
It is characterized in that：Including cutter hub, supporting plate, soft rubber sleeve, cutter hub is made up of the handle and bar portion of integral structure, handle it is upper
End can relatively rotate after being connected with the middle part of supporting plate, and the working end of bar portion and one end of soft rubber sleeve connect, soft rubber sleeve
The other end in be provided with vestibule, the orifice part of vestibule is taper.
To the further restriction of above-mentioned technical proposal, the attachment structure of the cutter hub and supporting plate is：In the upper end of handle
Bearing pin is upwardly extended at the heart, supporting plate is arranged on bearing pin by nut, and gap, supporting plate are left between supporting plate and handle
Deep gouge is provided with, nut is located in deep gouge.Advantage：Demountable, it is easy to cleaning-sterilizing, avoids pathogen transmission.
To the further improvement of above-mentioned technical proposal, the supporting plate is provided with finger ring, and finger ring is elastic rubber ring.It is excellent
Point：Finger ring is avoided that the problem of apparatus easily comes off with human hands in use, and simple in construction, production cost
It is low.
To the further restriction of above-mentioned technical proposal, the working end of the bar portion is provided with multiple limit convexes being spaced apart
Rise, the working end of soft rubber sleeve and bar portion is connected as one by vulcanization.Advantage：Integral structure simplifies production work
Skill, production cost is reduced, the problem of integrally being scrapped after damaging be present.
To the further restriction of above-mentioned technical proposal：The working end of the bar portion is provided with anti-pitch thread, soft rubber sleeve
Cavity wall is provided with internal thread, and the working end of bar portion is threadedly coupled with soft rubber sleeve.Advantage：The soft rubber sleeve of Demountable,
Flimsy soft rubber sleeve is conveniently replaceable, overall the problem of scrapping is avoided, reduces the wasting of resources.
To the further improvement of above-mentioned technical proposal, the hole wall of the vestibule is provided with through hole, and being provided with through hole to slide
Banking pin, soft rubber sleeve is provided with sliding sleeve, and the inner chamber of sliding sleeve one end is taper, the taper cavity wall of sliding sleeve and the outer end of banking pin
Contact connection.Advantage：Conical cavity in sliding sleeve is converted to the axial compressive force of sliding sleeve the radial pressure needed for banking pin, further
Ground prevents that screw from rotating and axial displacement in soft rubber sleeve, and its is simple in construction, easy to operate, production cost is low.
Beneficial effect：1. cutter hub is made up of handle and bar portion, handle is easy to fingerhold, and bar portion is easily inserted into tooth implant
It is interior；2. cutter hub combines with supporting plate, the stability of fingerhold apparatus is improved, and does not interfere cutter hub to rotate；3. the hole of vestibule
Oral area is taper, and the bar portion for screw of being easy to fracture is directed into vestibule, and bar portion and the soft rubber sleeve of screw are interference fit, so as to
Realize that screw with soft rubber sleeve synchronous axial system, that is, takes out the screw to fracture；4. the screw that fractures taken out is wrapped by rubber sleeve,
It is not easy to drop in patient oral cavity, avoids causing gulping down by mistake；5. the utility model is simple in construction, easy to operate, low manufacture cost, and
The screw that solves the problems, such as to fracture is difficult to take out.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the partial enlarged drawing of A in Fig. 1.
Fig. 3 is Fig. 1 use state figure.
Fig. 4 is the partial enlarged drawing of B in Fig. 3.
Fig. 5 is another attachment structure schematic diagram of cutter hub and supporting plate.
Embodiment
As shown in Fig. 1 and Fig. 2, a kind of dental fractures screw extractor, including cutter hub 1, supporting plate 2, soft rubber sleeve 3,
Cutter hub 1 is made up of the handle 101 and bar portion 102 of integral structure, i.e., handle 101 and the axis of bar portion 102 overlap；Handle 101
Upper end be connected with the middle part of supporting plate 2 after can relatively rotate, i.e., upwardly extended bearing pin at the upper end center of handle 101
1011st, supporting plate 2 is arranged on bearing pin by nut 1012, leaves gap between supporting plate 2 and handle 101, is set in supporting plate
There is deep gouge, nut is located in deep gouge；Supporting plate 2 is provided with the finger ring 201 of bonding, and finger ring 201 is elastic rubber ring；Soft rubber sleeve
3 are arranged on the working end of bar portion 102, i.e., the working end of bar portion 102 is provided with anti-pitch thread 1021, the cavity wall of soft rubber sleeve 3
It is provided with internal thread, the working end of bar portion 102 is threadedly coupled with soft rubber sleeve 3；Vestibule is provided with the other end of soft rubber sleeve 3
301, the aperture size of vestibule 301 is identical with the gauge diameter size for the screw that fractures, and the orifice part of vestibule 301 is taper, vestibule
301 hole wall is provided with through hole, and slidable banking pin 302 is provided with through hole, and the length of banking pin 302 is more than the axial direction of through hole
Length, soft rubber sleeve 3 are provided with sliding sleeve 303, and the inner chamber of the Single port of sliding sleeve 303 is taper, the internal face at sliding sleeve conical cavity end with
The outer end in contact connection of banking pin 302.
Known screw clockwise turn to tighten, rotate counterclockwise is unscrews；Because bar portion is provided with anti-pitch thread, when soft rubber
It is tight condition during gum cover rotate counterclockwise, clockwise turns to and unscrew state；Therefore, when unscrewing screw, soft rubber sleeve is stubborn
Tight state, so as to avoid the problem of soft rubber sleeve and cutter hub relatively rotate.Knife is clamped with the thumb and middle finger of operator
Handle in body, soft rubber sleeve is inserted into 4 in tooth implant；As shown in Figure 3 and Figure 4, forefinger pressing supporting plate, fracture screw
5 bar portion is directed into vestibule by conical orifice, and bar portion and the soft rubber sleeve of screw are interference fit；Again with the apparatuses such as tweezers
Press sliding sleeve to slide, the inner of banking pin is pushed into vestibule by the conical cavity of sliding sleeve, until the inner of banking pin is embedded in
Fracture in the bar portion of screw, further prevent that screw from rotating and axial displacement in soft rubber sleeve, thumb and middle finger are counterclockwise
Cutter hub is rotated, the screw that fractures takes out the screw that fractures with cutter hub rotate counterclockwise；The banking pin is pin, nail or screw.
As shown in figure 5, another attachment structure of the cutter hub and supporting plate is：The working end of the bar portion is provided with more
The working end of the individual spacing preiection 1022 being spaced apart, soft rubber sleeve and bar portion is connected as one by vulcanization.During use：
Handle in thumb and middle finger the clamping cutter hub of operator, soft rubber sleeve is inserted into tooth implant；Forefinger presses supporting plate,
The bar portion of screw of fractureing is directed into vestibule by conical orifice, and bar portion and the soft rubber sleeve of screw are interference fit；Cunning is pushed again
The inner of banking pin, is pushed into vestibule by set by the conical cavity of sliding sleeve, until the inner of banking pin is embedded in the screw that fractures
Bar portion in, prevent screw from being rotated in soft rubber sleeve, thumb and middle finger rotate counterclockwise cutter hub, and the screw that fractures is with the cutter hub inverse time
Pin rotates, that is, takes out the screw that fractures.
Claims (6)
- The screw extractor 1. a kind of dental fractures, it is characterised in that：Including cutter hub, supporting plate, soft rubber sleeve, cutter hub is by one It can be relatively rotated after handle and the bar portion composition of formula structure, the upper end of handle and the middle part connection of supporting plate, the work of bar portion End is connected with one end of soft rubber sleeve, is provided with vestibule in the other end of soft rubber sleeve, the orifice part of vestibule is taper.
- 2. a kind of dental fractures screw extractor according to claim 1, it is characterised in that：The cutter hub and supporting plate Attachment structure is：Upwardly extended bearing pin at the upper end center of handle, supporting plate is arranged on bearing pin by nut, supporting plate with Gap is left between handle, supporting plate is provided with deep gouge, and nut is located in deep gouge.
- The screw extractor 3. a kind of dental according to claim 1 or claim 2 fractures, it is characterised in that：Set in the supporting plate There is finger ring, finger ring is elastic rubber ring.
- 4. a kind of dental fractures screw extractor according to claim 3, it is characterised in that：On the working end of the bar portion Provided with multiple spacing preiections being spaced apart, the working end of soft rubber sleeve and bar portion is connected as one by vulcanization.
- 5. a kind of dental fractures screw extractor according to claim 3, it is characterised in that：On the working end of the bar portion Cavity wall provided with anti-pitch thread, soft rubber sleeve is provided with internal thread, and the working end of bar portion is threadedly coupled with soft rubber sleeve.
- 6. fractureed screw extractor according to a kind of 1 or 2 or 4 or 5 dental of claim, it is characterised in that：The vestibule Hole wall be provided with through hole, is provided with slidable banking pin in through hole, soft rubber sleeve is provided with sliding sleeve, and the inner chamber of sliding sleeve one end is Taper, the taper cavity wall of sliding sleeve and the outer end in contact of banking pin connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720158402.3U CN207118942U (en) | 2017-02-22 | 2017-02-22 | A kind of dental fractures screw extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720158402.3U CN207118942U (en) | 2017-02-22 | 2017-02-22 | A kind of dental fractures screw extractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207118942U true CN207118942U (en) | 2018-03-20 |
Family
ID=61614699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720158402.3U Expired - Fee Related CN207118942U (en) | 2017-02-22 | 2017-02-22 | A kind of dental fractures screw extractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207118942U (en) |
-
2017
- 2017-02-22 CN CN201720158402.3U patent/CN207118942U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180320 Termination date: 20190222 |