CN209153954U - A kind of nail-fetching device for orthopaedics - Google Patents
A kind of nail-fetching device for orthopaedics Download PDFInfo
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- CN209153954U CN209153954U CN201821634202.1U CN201821634202U CN209153954U CN 209153954 U CN209153954 U CN 209153954U CN 201821634202 U CN201821634202 U CN 201821634202U CN 209153954 U CN209153954 U CN 209153954U
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- tube body
- cylinder
- teeth
- fixing assembling
- movable plate
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Abstract
The utility model discloses a kind of nail-fetching device for orthopaedics, the left end of tube body is rotatably equipped with cylinder, middle part fixing assembling on the left of cylinder inboard wall has cylinder, and the right end of cylinder extends in tube body, the right end fixing assembling of cylinder has disk, the curved surface lateral wall of disk is uniformly equipped with arc convex, uniformly fixing assembling has hinged seat on the right side of tank inboard wall of tube body, the upper end of hinged seat is hinged with compression bar, the right end of compression bar extends tube body, the left end fixing assembling of compression bar has the movable plate to match with arc convex, the lateral surface left end fixing assembling of movable plate has spring, the outboard end of spring and the inner wall of ipsilateral tube body are mutually fixed, the utility model increases the grip strength to steel nail, guarantee the small-scale activity of nail-fetching device tool simultaneously, avoid damage to other normal human tissues, guarantee the complete taking-up of steel nail, it reduces steel nail and takes out difficulty, avoid patient by To secondary injury.
Description
Technical field
The utility model relates to the field of medical instrument technology, specially a kind of nail-fetching device for orthopaedics.
Background technique
Bone surgery is the bone that damage is fixed commonly using steel nail, and bone deformity is avoided to heal, after bone healing
It needs to take out steel nail in time, in taking steel nail operation, steel nail can be connected due to existing in people's body for a long time with tissue,
Increase very big difficulty to doctor when taking out, common operation takes nail method to be easily destroyed nail slot and human normal tissue, takes
Process is not stable enough out, is easy to break disconnected steel nail, increases the taking-up difficulty of steel nail, is easily damaged fracture site again, gives patient
Secondary injury is brought, it is above-mentioned for we have proposed a kind of nail-fetching device for orthopaedics in order to solve the problems, such as.
Utility model content
The purpose of this utility model is to provide a kind of nail-fetching device for orthopaedics, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the utility model provides the following technical solutions: a kind of nail-fetching device for orthopaedics, including tube body,
The left end of the tube body is rotatably equipped with cylinder, and tube body is connected with the right end of cylinder, the middle part on the left of the cylinder inboard wall
Fixing assembling has cylinder, and the right end of cylinder extends in tube body, and the right end fixing assembling of the cylinder has disk, the disk
Curved surface lateral wall be uniformly equipped with arc convex, and the quantity of arc convex is 4, uniformly solid on the right side of the tank inboard wall of tube body
Surely it is equipped with hinged seat, the quantity of the hinged seat is 4, and 4 hinged seats are circumferentially distributed, the upper end hinge of the hinged seat
It is connected to compression bar, the right end of the compression bar extends tube body, and the left end fixing assembling of the compression bar has to match with arc convex
Movable plate, the movable plate tilts 5~7 degree inwardly, and the medial surface of movable plate is cambered surface, the fixed dress in the lateral surface left end of the movable plate
Equipped with spring, the outboard end of the spring and the inner wall of the ipsilateral tube body are mutually fixed.
Preferably, the medial surface right end fixing assembling of the movable plate has clamping teeth, and the clamping teeth include the first tooth
Tooth and the second teeth, the quantity of first teeth is three, and three the first teeth fixing assemblings are in movable plate medial surface, described
The uniform fixing assembling of the medial surface of first teeth has the first strip bulge, and the first strip bulge is tilted in 45 degree, and described second
The quantity of teeth is three, and three the second teeth fixing assemblings are in the medial surface of movable plate, and the second teeth are located at the first tooth
The right side of tooth, the uniform fixing assembling of medial surface of second teeth have the second strip bulge, and second strip bulge is in 45
Degree inclination, and the second strip bulge is opposite with the inclined direction of the first strip bulge.
Preferably, the medial surface left end of the tube body offers annular groove, there is fixing assembling on the right side of the inner wall of the cylinder
Annulus, and the right end of annulus extends in tube body, the lateral surface right end fixing assembling of the annulus has annular fixture block, the annular
Fixture block rotation is connected in annular groove.
Preferably, the left side fixing assembling of the cylinder has fixed device, and the fixed device includes shell, described outer
The upper and lower surface of shell symmetrically offers through-hole, offers tapped through hole in the middle part of the left side of the shell, the tapped through hole
Inner wall is bolted with screw rod, and the right end of the screw rod is rotatably equipped with sliding block, and sliding block slidable fit is in shell, the screw rod
Left end fixing assembling has push plate.
Preferably, the inner wall fixing assembling restraining position ring block of the tube body, the cylinder run through the inner ring surface of stop collar.
Compared with prior art, the utility model has the beneficial effects that the utility model devises a kind of orthopaedics with taking nail
Device, the present apparatus are greatly increased the grip strength to steel nail, are guaranteed simultaneously by the clamp structure of cartridge type and the design of clamping teeth
The small-scale activity of nail-fetching device tool, avoids damage to other normal human tissues, guarantees the complete taking-up of steel nail, reduces steel nail and takes out
Difficulty avoids patient by secondary injury.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model.
Fig. 2 is schematic cross-section at this practical middle tube body A-A '.
Fig. 3 is detail view at a in Fig. 1.
In figure: 1 tube body, 11 annular grooves, 2 cylinders, 21 annulus, 22 annular fixture blocks, 3 fixed devices, 31 shells, 32 through-holes,
33 tapped through holes, 34 screw rods, 35 sliding blocks, 36 push plates, 4 cylinders, 5 disks, 51 arc convex, 6 hinged seats, 7 compression bars, 71 movable plates,
72 clamping teeth, 721 first teeth, 722 first strip bulges, 723 second teeth, 724 second strip bulges, 8 springs, 9 limits
Position ring.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1, Fig. 2 and Fig. 3 are please referred to, the utility model provides a kind of technical solution: a kind of nail-fetching device for orthopaedics, including pipe
Body 1, the left end of tube body 1 is rotatably equipped with cylinder 2, and tube body 1 is connected with the right end of cylinder 2, the middle part on the left of 2 inner wall of cylinder
Fixing assembling has cylinder 4, and the right end of cylinder 4 extends in tube body 1, and the right end fixing assembling of cylinder 4 has disk 5, disk 5
Curved surface lateral wall is uniformly equipped with arc convex 51, and the quantity of arc convex 51 is 4, uniformly solid on the right side of 1 inner wall of tank tube body
Surely it is equipped with hinged seat 6, the quantity of hinged seat 6 is 4, and 4 hinged seats 6 are circumferentially distributed, and the upper end of hinged seat 6 is hinged with
Compression bar 7, the right end of compression bar 7 extend tube body 1, and the left end fixing assembling of compression bar 7 has the movable plate 71 to match with arc convex 51,
Movable plate 71 tilts 5~7 degree inwardly, and the medial surface of movable plate 71 is cambered surface, and the lateral surface left end fixing assembling of movable plate 71 has bullet
Spring 8, the outboard end of spring 8 and the inner wall of ipsilateral tube body 1 are mutually fixed.
Cylinder 2 can be in 1 left pivot movement of tube body, and cylinder 2 drives cylinder 4 and disk 5 to rotate, original state as shown in Fig. 2,
Movable plate 71 is located between the gap of arc convex 51, and there are certain angle, four pressures between movable plate 71 and the inner wall of tube body 1 at this time
Gap between the right end of bar 7 is much larger than steel nail head sizes, and the section of movable plate 71 is as described in Figure 2, and the medial surface of movable plate 71 is
The cambered surface of cambered surface, 71 medial surface of movable plate is fitted in the cambered surface of arc convex 51, when arc convex 51 is rotated with disk 5,
Arc convex 51 squeezes movable plate 71, so that movable plate 71 moves outward, spring 8 is by compressive deformation, when arc convex 51 turns to
During 71 section medium position of movable plate, movable plate 71 moves outward, according to lever principle, the compression bar being connected with movable plate 71
7 is inwardly and mobile by fulcrum of hinged place, and the right end of four compression bars 7 is to contract, so that the clamping tooth of four 7 medial surfaces of compression bar
Tooth 72 is clamped in the steel nail head for needing to take out, and guarantees the fixation to steel nail, stop operating cylinder 2 at this time, makes arc convex 51
It stops operating, the relative displacement of cylinder 2 and tube body 1 is limited with hand, keep compression bar 7 to the clamping force of steel nail.
Specifically, the medial surface right end fixing assembling of movable plate 71 has clamping teeth 72, clamping teeth 72 include the first tooth
Tooth 721 and the second teeth 723, the quantity of the first teeth 721 is three, and three 721 fixing assemblings of the first teeth are in movable plate 71
Medial surface, the uniform fixing assembling of medial surface of the first teeth 721 has the first strip bulge 722, and the first strip bulge 722 is in 45
Degree inclination, the quantity of the second teeth 723 are three, and three 723 fixing assemblings of the second teeth are in the medial surface of movable plate 71, and second
Teeth 723 are located at the right side of the first teeth 721, and the uniform fixing assembling of medial surface of the second teeth 723 has the second strip bulge
724, the second strip bulge 724 is tilted in 45 degree, and the inclined direction phase of the second strip bulge 724 and the first strip bulge 722
Instead.
The quantity of first teeth 721 and the second teeth 723 is three, is evenly distributed on the medial surface of movable plate 71, and first
724 inclined direction of the second strip bulge on the first strip bulge 722 and the second teeth 723 in teeth 721 is on the contrary, increase pair
The grip strength of steel nail, so that clamped more firm of steel nail.
Specifically, the medial surface left end of tube body 1 offers annular groove 11, fixing assembling has circle on the right side of the inner wall of cylinder 2
Ring 21, and the right end of annulus 21 extends in tube body 1, the lateral surface right end fixing assembling of annulus 21 has annular fixture block 22, annular
The rotation of fixture block 22 is connected in annular groove 11, and above-mentioned design is so that the rotation between tube body 1 and cylinder 2 is more stable.
Specifically, the left side fixing assembling of cylinder 2 has fixed device 3, fixed device 3 includes shell 31, shell 31
Upper and lower surface symmetrically offer through-hole 32, offer tapped through hole 33 in the middle part of the left side of shell 31, tapped through hole 33 it is interior
Wall is bolted with screw rod 34, and the right end fixing assembling of screw rod 34 has a sliding block 35, and 35 slidable fit of sliding block is in shell 31, screw rod 34
Left end be rotatably equipped with push plate 36.
Fixed device 3 is for fixing whole device, and suitable for being fixed on rod-like articles, shaft runs through two through-holes
32, push plate 36 is rotated clockwise, screw rod 34 moves right in tapped through hole 33, and screw rod 34 pushes push plate 36 to move right, and pushes away
Plate 36 is extruded in shaft outer wall, realizes the fixation to whole device, enhances the stability of whole device.
Specifically, the inner wall fixing assembling restraining position ring block 9 of tube body 1, cylinder 4 runs through the inner ring surface of stop collar 9, cylinder 4
With the inner ring face contact of stop collar 9, the smooth design of the inner ring surface of stop collar 9 facilitates the rotation of cylinder 4, and stop collar 9 guarantees cylinder
4 horizontally rotate position, make 4 stable rotation of cylinder.
Working principle: when using the present apparatus, tube body 1, another hand rotating cylinder 2 are fixed with hand, cylinder 2 drives cylinder 4
It being rotated with disk 5, the medial surface of movable plate 71 is cambered surface, and the cambered surface of 71 medial surface of movable plate is fitted in the cambered surface of arc convex 51,
When arc convex 51 is rotated with disk 5, arc convex 51 squeezes movable plate 71, so that movable plate 71 moves outward, 8 quilt of spring
Compressive deformation, during arc convex 51 turns to 71 section medium position of movable plate, movable plate 71 moves outward, according to thick stick
Rod principle, the compression bar 7 being connected with movable plate 71 is inwardly and mobile by fulcrum of hinged place, the right ends of four compression bars 7 to contract,
So that the clamping teeth 72 of four 7 medial surfaces of compression bar are clamped in the steel nail head for needing to take out, guarantee the fixation to steel nail, at this time
Stop operating cylinder 2, and arc convex 51 is made to stop operating, and the relative displacement of cylinder 2 and tube body 1 is limited with hand, keeps compression bar 7 right
The clamping force of steel nail facilitates taking-up steel nail, and the present apparatus increases the grip strength to steel nail, while guaranteeing nail-fetching device tool small range
Activity, avoid damage to other normal human tissues, guarantee the complete taking-up of steel nail, reduce steel nail and take out difficulty, avoid patient
By secondary injury.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (5)
1. a kind of nail-fetching device for orthopaedics, it is characterised in that: including tube body (1), the left end of the tube body (1) is rotatably equipped with cylinder
(2), and tube body (1) is connected with the right end of cylinder (2), and the middle part fixing assembling on the left of cylinder (2) inner wall has cylinder
(4), and the right end of cylinder (4) extends in tube body (1), and the right end fixing assembling of the cylinder (4) has disk (5), the circle
The curved surface lateral wall of disk (5) is uniformly equipped with arc convex (51), and the quantity of arc convex (51) is 4, the tube body (1)
Uniformly fixing assembling has hinged seat (6) on the right side of inner wall, and the quantity of the hinged seat (6) is 4, and 4 hinged seats (6) are circumferentially
Distribution, the upper end of the hinged seat (6) are hinged with compression bar (7), and the right end of the compression bar (7) extends tube body (1), the compression bar
(7) left end fixing assembling has the movable plate (71) to match with arc convex (51), and the movable plate (71) tilts 5~7 inwardly
Degree, and the medial surface of movable plate (71) is cambered surface, the lateral surface left end fixing assembling of the movable plate (71) has spring (8), the bullet
The outboard end of spring (8) and the inner wall of the ipsilateral tube body (1) are mutually fixed.
2. a kind of nail-fetching device for orthopaedics according to claim 1, it is characterised in that: the medial surface right end of the movable plate (71)
Fixing assembling has clamping teeth (72), and the clamping teeth (72) include the first teeth (721) and the second teeth (723), described
The quantity of first teeth (721) is three, and three the first teeth (721) fixing assemblings are in movable plate (71) medial surface, described the
The uniform fixing assembling of medial surface of one teeth (721) has the first strip bulge (722), and the first strip bulge (722) is in 45 degree
Inclination, the quantity of second teeth (723) are three, and three the second teeth (723) fixing assemblings are in movable plate (71)
Medial surface, and the second teeth (723) are located at the right side of the first teeth (721), the medial surface of second teeth (723) is uniformly solid
Surely it is equipped with the second strip bulge (724), second strip bulge (724) tilts in 45 degree, and the second strip bulge (724)
It is opposite with the inclined direction of the first strip bulge (722).
3. a kind of nail-fetching device for orthopaedics according to claim 1, it is characterised in that: the medial surface left end of the tube body (1)
It offers annular groove (11), there is annulus (21) fixing assembling on the right side of the inner wall of the cylinder (2), and the right end of annulus (21) extends
In to tube body (1), the lateral surface right end fixing assembling of the annulus (21) has annular fixture block (22), and the annular fixture block (22) turns
It is dynamic to be connected in annular groove (11).
4. a kind of nail-fetching device for orthopaedics according to claim 1, it is characterised in that: the left side of the cylinder (2) is fixed
It is equipped with fixed device (3), the fixed device (3) includes shell (31), and the upper and lower surface of the shell (31) symmetrically opens up
Have through-hole (32), is offered tapped through hole (33) in the middle part of the left side of the shell (31), the inner wall of the tapped through hole (33)
It is bolted with screw rod (34), the right end of the screw rod (34) is rotatably equipped with sliding block (35), and sliding block (35) slidable fit is in shell
(31) in, the left end fixing assembling of the screw rod (34) has push plate (36).
5. a kind of nail-fetching device for orthopaedics according to claim 1, it is characterised in that: the fixed dress of the inner wall of the tube body (1)
With restraining position ring block (9), the cylinder (4) runs through the inner ring surface of stop collar (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821634202.1U CN209153954U (en) | 2018-10-09 | 2018-10-09 | A kind of nail-fetching device for orthopaedics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821634202.1U CN209153954U (en) | 2018-10-09 | 2018-10-09 | A kind of nail-fetching device for orthopaedics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209153954U true CN209153954U (en) | 2019-07-26 |
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ID=67333204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821634202.1U Active CN209153954U (en) | 2018-10-09 | 2018-10-09 | A kind of nail-fetching device for orthopaedics |
Country Status (1)
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| CN (1) | CN209153954U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113520567A (en) * | 2021-08-05 | 2021-10-22 | 河南科技大学第一附属医院 | Nail taking device for orthopedics department |
| CN114601626A (en) * | 2022-03-01 | 2022-06-10 | 北京华视诺维医疗科技有限公司 | Medical polishing device |
-
2018
- 2018-10-09 CN CN201821634202.1U patent/CN209153954U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113520567A (en) * | 2021-08-05 | 2021-10-22 | 河南科技大学第一附属医院 | Nail taking device for orthopedics department |
| CN113520567B (en) * | 2021-08-05 | 2022-06-03 | 河南科技大学第一附属医院 | Nail taking device for orthopedics department |
| CN114601626A (en) * | 2022-03-01 | 2022-06-10 | 北京华视诺维医疗科技有限公司 | Medical polishing device |
| CN114601626B (en) * | 2022-03-01 | 2024-01-30 | 北京华视诺维医疗科技有限公司 | Medical polishing device |
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