CN204581492U - Device for taking out broken nail - Google Patents
Device for taking out broken nail Download PDFInfo
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- CN204581492U CN204581492U CN201520274654.3U CN201520274654U CN204581492U CN 204581492 U CN204581492 U CN 204581492U CN 201520274654 U CN201520274654 U CN 201520274654U CN 204581492 U CN204581492 U CN 204581492U
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- cylinder
- broken nail
- right arm
- left arm
- taking out
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Abstract
The utility model discloses a kind of device for taking out broken nail, comprise the cylinder of oral area to downward-extension, mouth cylinder end surface is equipped with the mill teeth to downward-extension, cylinder outer wall is provided with external screw thread, external screw thread epimere is bolted with swivel nut, swivel nut is installed with outward extending crank, cylinder upper end is fixedly installed with handle by installed body, cylinder hypomere is provided with through slot through and through inside and outside two downwards, cylinder hypomere is divided into left arm and right arm by two through slots, and left arm and right arm are respectively around the outward-dipping low-angle α of both connecting portions.This device for taking out broken nail is rational in infrastructure, can be fixedly connected with broken nail outer end fast, and broken nail can be screwed out smoothly, easy to operate, and a people just can operate, and wound face is little, is beneficial to postoperative quick recovery.
Description
Technical field
This utility model relates to a kind of device for taking out broken nail.
Background technology
Fracture is a kind of common unexpected injury situation, once there is fracture accident, that generally first considers carries out steel plate location to fracture site exactly, is again engaged togather with auxiliary knochenbruch.In order to ensure steel plate erection after can not be shifted, set up steel plate time, be all with multiple screw by Interal fixation on knochenbruch.When after knochenbruch healing, need steel plate to remove, skeleton of namely screw being back-outed.Because the time of setting up steel plate short then some months is long then several years, therefore the phenomenon that screw and skeleton grow together often is caused, and due to steel plate erection overlong time, the fatigue strength of screw reaches capacity, and causes the screw when getting steel plate to be occurred by the phenomenon of twisting into two parts.
For fracture patient, the thing worried most is connected good no more than knochenbruch, but the screw of fixation steel plate does not take out.Due to psychological factor impact, even if the screw of disconnected row does not have anything to affect on patient, patient also can do one's utmost to require broken nail to take out.And at present owing to not having special device for taking out broken nail tool, generally the instrument such as pipe wrench, large brank of meeting choice for use engineering gets nail by force.Due to the bulky of these instruments, often need to cut open larger wound, and need electric drill to hole so that above-mentioned tool holder broken nail to the skeleton around broken nail, and therefore also larger to the destruction of skeleton, cause patient also to need to rest for a long time after getting nail.Above-mentioned nail mode of getting generally needs many people to coordinate just to complete, and work efficiency is lower.
Summary of the invention
This utility model is exactly for above-mentioned deficiency, and propose a kind of rational in infrastructure, can be fixedly connected with broken nail outer end fast, and broken nail can be screwed out smoothly, easy to operate, a people just can operate, and wound face is little, is beneficial to the device for taking out broken nail of postoperative quick recovery.
For solving the problem, the construction features of this device for taking out broken nail is: comprise the cylinder of oral area to downward-extension, mouth cylinder end surface is equipped with the mill teeth to downward-extension, cylinder outer wall is provided with external screw thread, external screw thread epimere is bolted with swivel nut, swivel nut is installed with outward extending crank, cylinder upper end is fixedly installed with handle by installed body, cylinder hypomere is provided with through slot through and through inside and outside two downwards, cylinder hypomere is divided into left arm and right arm by two through slots, and left arm and right arm are respectively around the outward-dipping low-angle α of both connecting portions.
This device for taking out broken nail realizes can being fixedly connected with broken nail outer end fast by milling bone clamping structure, and broken nail can be screwed out smoothly, and easy to operate, a people is just operable.
The swivel nut that milling bone clamping structure mainly comprises the mill teeth being arranged on cylinder lower end, the through slot being arranged on cylinder bottom and is screwed onto on cylinder.Arrange downwards because cylinder is oral area, therefore cylinder lower end is roughly in circular ring.Mill teeth uniform ring is located at cylinder lower end, and extended downwards, and therefore when cylinder rotates around its central shaft, its lower end will have certain milling ability.When cylinder lower end is sleeved on rotating cylinder on broken nail, the mill teeth of cylinder lower end carries out annular milling by the skeleton of broken nail periphery, so just can mill out an annular bone groove in broken nail periphery, and the internal ring wall of annular bone groove and broken nail periphery are pressed close to arrange.After milling out annular bone groove, just serve the effect exposed broken nail outer end, for follow-up clamping broken nail is provided convenience condition.Cylinder upper end is installed with handle by installed body, therefore by turning handle, just can play the effect of rotor, also just achieve the function of processing annular bone groove, operate very simple.
Cylinder hypomere is provided with through slot, and through slot is axially extended, through slot not only by cylinder hypomere inner chamber and outside through, also penetrate into cylinder lower end downwards, after therefore arranging through slot, cylinder hypomere is divided into two parts, i.e. left arm and right arm always.In this device for taking out broken nail, the axis of left arm and right arm is not what be arranged in parallel, but with both connecting portion centers, namely with through slot upper end for the center of circle, an outward-dipping low-angle α.Like this, an osculum is just opened by left arm and right arm in cylinder lower end, and the effect of this osculum, mainly for installing on broken nail outer end by annular bone groove by cylinder lower end rapid card, also snaps fitted on broken nail outer end by left arm and right arm lower end.Cylinder outer wall is provided with external screw thread, and has swivel nut by external thread bolt connection, swivel nut is installed with the crank driving swivel nut to rotate.When cylinder lower end snaps fitted to broken nail outer end by annular bone groove, swivel nut can be driven to rotate gradually along cylinder by crank.While swivel nut rotates, the left arm of inclination and right arm inwardly can be swung gradually, now broken nail outer end can clamp by left arm and right arm lower end gradually.When swivel nut turns to cylinder hypomere, broken nail outer end is clamped inflexibly by left arm and right arm under the position-limiting action of swivel nut, and this state is called clamped condition.In the clamp state, handle is snapped fitted to cylinder upper end by installed body, then by handle drives rotary drum, so just can drive the broken nail synchronous axial system of clamping, also just easily broken nail can be taken out, operate very simple.
As a kind of implementation, described installed body comprises the triangular prism being coaxially installed in cylinder upper end, also comprises column sleeve, and column sleeve endoporus is the delthyrium coordinated with triangular prism plug-in mounting, and symmetric handles is installed in column sleeve both sides.
Triangular prism is set firmly in cylinder upper end, the column sleeve plug-in mounting not only can with delthyrium coordinates, so just can by being installed in handle drives triangular prism and the rotary drum on column sleeve both sides, namely realize the function of manual rotation, existing electric drill can also be utilized to export claw to be secured on triangular prism, thus realize the function of electric drive rotary drum, the namely function of electronic rotation.Two kinds of mode unrestricted choice, operate all very simple.
As improvement, left arm and right arm lower inner wall are the clip tooth of annular array, and clip tooth is axially extended.
The inwall of left arm and right arm arranges clip tooth, the effect strengthening clamping effect can be played.Because clip tooth is extended along the axis of left arm and right arm, length direction namely along left arm and right arm is extended, therefore in the clamp state rotor time, frictional force between cylinder bottom inwall and broken nail outer wall will increase greatly because arranging clip tooth, it is very firm to clamp, effectively prevent and occur rotating skidding, also just improve the success rate that broken nail takes out.
As further improvement, the clip tooth top in left arm and right arm lower inner wall is positioned on the Circular test coaxial with cylinder.
Because the annular bone groove that left arm and right arm lower end mill out in broken nail periphery is annular, therefore the clip tooth top on left arm and right arm lower inner wall is arranged on the Circular test coaxially arranged with cylinder, the concordance of each clip tooth when clamped condition can be ensured, also just ensure that effective internal diameter of annular bone groove, also namely little to skeleton trauma face.
As improvement, left arm and right arm bottom outer wall surround the thick circular cone table top in thin upper end, same lower end.
Left arm and right arm bottom outer wall are arranged to the thicker circular cone table top in thinner upper end, lower end, left arm and right arm lower end periphery can be made to be positioned at same Circular test, also namely ensure that effective external diameter of annular bone groove, also namely ensure that skeleton trauma face little.Be arranged to the circular cone table top that thin upper end, lower end is thick, the structural strength of cylinder can also be ensured, and the blessing power of left arm and right arm is all focused on bottom, also namely with the retaining part of broken nail, ensure that clamping effect.
In sum, this device for taking out broken nail is rational in infrastructure, can be fixedly connected with broken nail outer end fast, and broken nail can be screwed out smoothly, easy to operate, and a people just can operate, and wound face is little, is beneficial to postoperative quick recovery.
Accompanying drawing explanation
For ease of illustrating, this utility model is described in detail by following concrete enforcement and accompanying drawing.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of cylinder bottom mill teeth and clip tooth;
Fig. 3 is the structural representation of left arm and right arm clamping broken nail;
Fig. 4 is half sectional view of the present utility model.
Detailed description of the invention
As shown in the figure, this device for taking out broken nail comprises the cylinder 1 of oral area to downward-extension, and mouth cylinder end surface is equipped with the mill teeth 2 to downward-extension.Cylinder outer wall is provided with external screw thread 3, and external screw thread epimere is bolted with swivel nut 4, swivel nut is installed with outward extending crank 5.Cylinder upper end is fixedly installed with handle 6 by installed body.Cylinder hypomere is provided with through slot 7 through and through inside and outside two downwards, and cylinder hypomere is divided into left arm 8 and right arm 9 by two through slots, and left arm and right arm are respectively around the outward-dipping low-angle α of both connecting portions.
The swivel nut that this device for taking out broken nail mainly comprises the mill teeth being arranged on cylinder lower end, the through slot being arranged on cylinder bottom and is screwed onto on cylinder.Arrange downwards because cylinder is oral area, therefore cylinder lower end is roughly in circular ring.Mill teeth uniform ring is located at cylinder lower end, and extended downwards, and therefore when cylinder rotates around its central shaft, its lower end will have certain milling ability.When cylinder lower end is sleeved on rotating cylinder on broken nail 13, the mill teeth of cylinder lower end carries out annular milling by the skeleton of broken nail periphery, so just can mill out an annular bone groove in broken nail periphery, and the internal ring wall of annular bone groove and broken nail periphery are pressed close to arrange.After milling out annular bone groove, just serve the effect exposed broken nail outer end, for follow-up clamping broken nail is provided convenience condition.Cylinder upper end is installed with handle by installed body, therefore by turning handle, just can play the effect of rotor, also just achieve the function of processing annular bone groove, operate very simple.
Cylinder hypomere is provided with through slot, and through slot is axially extended, through slot not only by cylinder hypomere inner chamber and outside through, also penetrate into cylinder lower end downwards, after therefore arranging through slot, cylinder hypomere is divided into two parts, i.e. left arm and right arm always.In this device for taking out broken nail, the axis of left arm and right arm is not what be arranged in parallel, but with both connecting portion centers, namely with through slot upper end for the center of circle, an outward-dipping low-angle α.Like this, an osculum is just opened by left arm and right arm in cylinder lower end, and the effect of this osculum, mainly for installing on broken nail outer end by annular bone groove by cylinder lower end rapid card, also snaps fitted on broken nail outer end by left arm and right arm lower end.Cylinder outer wall is provided with external screw thread, and has swivel nut by external thread bolt connection, swivel nut is installed with the crank driving swivel nut to rotate.When cylinder lower end snaps fitted to broken nail outer end by annular bone groove, swivel nut can be driven to rotate gradually along cylinder by crank.While swivel nut rotates, the left arm of inclination and right arm inwardly can be swung gradually, now broken nail outer end can clamp by left arm and right arm lower end gradually.When swivel nut turns to cylinder hypomere, broken nail outer end is clamped inflexibly by left arm and right arm under the position-limiting action of swivel nut, and this state is called clamped condition.In the clamp state, handle is snapped fitted to cylinder upper end by installed body, then by handle drives rotary drum, so just can drive the broken nail synchronous axial system of clamping, also just easily broken nail can be taken out, operate very simple.
In the present embodiment, described installed body comprises the triangular prism 10 being coaxially installed in cylinder 1 upper end, also comprises column sleeve 11, and column sleeve endoporus is the delthyrium coordinated with triangular prism plug-in mounting, and symmetric handles is installed in column sleeve both sides.Triangular prism is set firmly in cylinder upper end, the column sleeve plug-in mounting not only can with delthyrium coordinates, so just can by being installed in handle drives triangular prism and the rotary drum on column sleeve both sides, namely realize the function of manual rotation, existing electric drill can also be utilized to export claw to be secured on triangular prism, thus realize the function of electric drive rotary drum, the namely function of electronic rotation.Two kinds of mode unrestricted choice, operate all very simple.
Left arm and right arm lower inner wall are the clip tooth 12 of annular array, and clip tooth is axially extended.The inwall of left arm and right arm arranges clip tooth, the effect strengthening clamping effect can be played.Because clip tooth is extended along the axis of left arm and right arm, length direction namely along left arm and right arm is extended, therefore in the clamp state rotor time, frictional force between cylinder bottom inwall and broken nail outer wall will increase greatly because arranging clip tooth, it is very firm to clamp, effectively prevent and occur rotating skidding, also just improve the success rate that broken nail takes out.
In this device for taking out broken nail, the clip tooth top in left arm and right arm lower inner wall is positioned on the Circular test coaxial with cylinder.Because the annular bone groove that left arm and right arm lower end mill out in broken nail periphery is annular, therefore the clip tooth top on left arm and right arm lower inner wall is arranged on the Circular test coaxially arranged with cylinder, the concordance of each clip tooth when clamped condition can be ensured, also just ensure that effective internal diameter of annular bone groove, also namely little to skeleton trauma face.
Left arm and right arm bottom outer wall surround the thick circular cone table top in thin upper end, same lower end.Left arm and right arm bottom outer wall are arranged to the thicker circular cone table top in thinner upper end, lower end, left arm and right arm lower end periphery can be made to be positioned at same Circular test, also namely ensure that effective external diameter of annular bone groove, also namely ensure that skeleton trauma face little.Be arranged to the circular cone table top that thin upper end, lower end is thick, the structural strength of cylinder can also be ensured, and the blessing power of left arm and right arm is all focused on bottom, also namely with the retaining part of broken nail, ensure that clamping effect.
In the present embodiment, described angle [alpha] is 0.5 °, and this α angle is less, can meet the designing requirement of this patent completely.
Claims (5)
1. a device for taking out broken nail, it is characterized in that: comprise the cylinder (1) of oral area to downward-extension, cylinder (1) oral area end face is equipped with the mill teeth (2) to downward-extension, cylinder (1) outer wall is provided with external screw thread (3), external screw thread (3) epimere is bolted with swivel nut (4), swivel nut (4) is installed with outward extending crank (5), cylinder (1) upper end is fixedly installed with handle (6) by installed body, cylinder (2) hypomere is provided with through slot (7) through and through inside and outside two downwards, cylinder (2) hypomere is divided into left arm (8) and right arm (9) by two through slots (7), left arm (8) and right arm (9) are respectively around the outward-dipping low-angle α of both connecting portions.
2. device for taking out broken nail as claimed in claim 1, it is characterized in that: described installed body comprises the triangular prism (10) being coaxially installed in cylinder (1) upper end, also comprise column sleeve (11), column sleeve (11) endoporus is the delthyrium coordinated with triangular prism (10) plug-in mounting, and handle (6) symmetry is installed in column sleeve (11) both sides.
3. device for taking out broken nail as claimed in claim 2, is characterized in that: left arm (8) and right arm (9) lower inner wall are the clip tooth (12) of annular array, and clip tooth (12) is axially extended.
4. device for taking out broken nail as claimed in claim 3, is characterized in that: the clip tooth top in left arm (8) and right arm (9) lower inner wall is positioned on the Circular test coaxial with cylinder.
5. device for taking out broken nail as claimed in claim 4, is characterized in that: left arm (8) and right arm (9) bottom outer wall surround the thick circular cone table top in thin upper end, same lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520274654.3U CN204581492U (en) | 2015-05-02 | 2015-05-02 | Device for taking out broken nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520274654.3U CN204581492U (en) | 2015-05-02 | 2015-05-02 | Device for taking out broken nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204581492U true CN204581492U (en) | 2015-08-26 |
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ID=53917702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520274654.3U Expired - Fee Related CN204581492U (en) | 2015-05-02 | 2015-05-02 | Device for taking out broken nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204581492U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106725824A (en) * | 2017-03-05 | 2017-05-31 | 刘金凤 | A kind of Medical orthopedic nail-fetching device |
| CN110575241A (en) * | 2019-09-23 | 2019-12-17 | 河海大学常州校区 | Orthopedics nail taking device |
-
2015
- 2015-05-02 CN CN201520274654.3U patent/CN204581492U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106725824A (en) * | 2017-03-05 | 2017-05-31 | 刘金凤 | A kind of Medical orthopedic nail-fetching device |
| CN110575241A (en) * | 2019-09-23 | 2019-12-17 | 河海大学常州校区 | Orthopedics nail taking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20150826 Termination date: 20160502 |