CN209032616U - A kind of medical nail puller - Google Patents
A kind of medical nail puller Download PDFInfo
- Publication number
- CN209032616U CN209032616U CN201820799150.7U CN201820799150U CN209032616U CN 209032616 U CN209032616 U CN 209032616U CN 201820799150 U CN201820799150 U CN 201820799150U CN 209032616 U CN209032616 U CN 209032616U
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- China
- Prior art keywords
- quick
- rod
- connector
- nail rod
- release connector
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Abstract
The utility model discloses a kind of medical nail pullers, it is intended to provide that a kind of have when in use being capable of quick-replaceable connector or nail rod, reduce the skill requirement of operator, reduce operating difficulty, a kind of medical nail puller for the advantages of promoting procedure efficiency, its key points of the technical solution are that, thread jacket is arranged with outside upper nail rod, thread jacket is externally connected with handle, handle one end is connected with the closing piece being set in nail rod, closing piece is connected in upper nail rod by nut limit, upper nail rod is connected with quick-release connector close to one end of nut, quick-release connector is fixedly connected by connector with the end of upper nail rod, upper nail rod includes the connecting pin connecting with quick-release connector, medical staff goes being capable of the suitable quick-release connector of quick-replaceable or upper nail rod, to reduce the time required when replacement tool, the suitable connector of replacement or mandril can reduce operation The skill requirement of operator, reduces the difficulty of operation, while promoting the efficiency of operation.
Description
Technical field
The utility model relates to field of medical auxiliary equipment, and in particular to a kind of medical nail puller.
Background technique
Internal fixation is that face will break directly in or beyond knochenbruch with objects such as metallic screw, steel plate, intramedullary needle, steel wire or bone plates
The operation that bone is connected and fixed, referred to as internal fixation.This operation is chiefly used in open reduction of fracture and osteotomy, to keep
Roll over the reset at end.
The major advantage of internal fixation is the anatomical reduction that can preferably keep fracture, is had than simple outer fixed direct
Effect, it is especially more effective in terms of the scissors or rotation sexuality that prevent fracture end.In addition, some inside-fixtures have strong branch
Support effect, it is postoperative to lack with or without outer fixation, it is possible to reduce fixed scope and time outside, strong interior be fixed with are conducive to
The functional training and early stage for hurting limb are got up, and the complication because of caused by long-term bed is reduced.
Pedicle screw fixation system is a kind of internal fixation system of internal fixation operation, is mainly made of screw, nail stick and plug screw.
Screw is made of rivet nut and nail seat, and rivet nut has external screw thread to be equipped with the U-shaped for placing nail stick to be screwed into backbone bone, nail seat
Slot, the U-lag inner wall have hickey, and nail seat can be connected firmly by the hickey with plug screw.
When operation, the implantation process (also deserve to be called nail and set rod motion) of pedicle screw fixation system are as follows: first complete screw and upper nail device
Assembly, then operation on nail device insert screws into the designated position of backbone, then release screw and it is upper nail device connection；It will be required
The screw wanted is implanted into backbone and then is pressed into the U-lag of each nail seat using stick device is set by stick is followed closely, and uses special tool later
Plug screw is screwed into screw to pressing pin stick by tool.
Currently, the Chinese patent of Publication No. CN205411309U discloses a kind of installation tool of pedicle screw fixation system,
It includes that screw, nail stick and plug screw, the utility model include positioning pipe, upper nail rod and plug screw mounting rod, and the positioning pipe includes
Left and right clamp arm, the leading inside of left and right clamp arm are respectively equipped with the locating slot connecting with screw fit, and positioning pipe is equipped with and is used for
The opening of nail stick is worn, forms the connected pathways along positioning pipe axial direction among the left and right clamp arm, the upper nail rod is inserted into
The connected pathways mounting screw of positioning pipe, the plug screw mounting rod are inserted into the connected pathways installation plug screw of positioning pipe.
Although the installation tool of this pedicle screw fixation system effectively reduces the use of tool, improve the effect of operation
Rate, but during upper nail process and nail nipping, due to the size of screw, model and position difference, need using not similar shape
Shape, size upper nail rod operated, set higher to the technical requirements of operator when stick, on the one hand increase the difficulty of operation
Degree, on the other hand extends the time of operation, reduces procedure efficiency.
Summary of the invention
The purpose of the utility model is to provide a kind of medical nail puller, have when in use can quick-replaceable connector or
The advantages of nail rod reduces the skill requirement of operator, reduces operating difficulty, promote procedure efficiency.
The above-mentioned technical purpose of the utility model has the technical scheme that
A kind of medical nail puller, including upper nail rod, upper nail rod are arranged with thread jacket outside, and thread jacket is externally connected with hand
Handle, handle one end are connected with the closing piece being set in nail rod, and closing piece is connected in upper nail rod by nut limit, and upper nail rod is leaned on
One end of nearly nut is connected with quick-release connector, and quick-release connector is fixedly connected by connector with the end of upper nail rod, upper nail
Bar includes the connecting pin connecting with quick-release connector.
By using above-mentioned technical proposal, handle is connected in upper nail rod by thread jacket, and solid by closing piece and nut
Fixing limit, user more conveniently can operate screw using upper nail rod by handle.Simultaneously by being set to upper nail rod
The connector of one end, user can replace quick-release connector more conveniently, and the quick-release connector after replacing is connected firmly, using compared with
For safety.
Such medical staff go can the suitable quick-release connector of quick-replaceable or upper nail rod, to reduce replacement tool when institute
The time needed, replacing suitable connector or mandril can reduce the skill requirement of operator, reduce the difficulty of operation, simultaneously
Promote the efficiency of operation.
Further setting: connector includes corresponding upper nail rod connecting pin and the receiving hole in quick-release connector, receiving hole
It is adapted to the connecting pin of upper nail rod, and is threadedly coupled with connecting pin.
By using above-mentioned technical proposal, the receiving hole of quick-release connector end is adapted to the connecting pin of upper nail rod, connection or
When disassembly, it is only necessary to upper nail rod is rotated, can be relatively fixed by quick-release connector and upper nail rod by screw thread, to reach fast
The purpose of speed connection and replacement.
Further setting: quick-release connector and connecting pin are correspondingly provided with the connecting hole for successively penetrating quick-release connector and connecting pin,
Fixed pin has been connected through a screw thread in connecting hole.
By using above-mentioned technical proposal, after upper nail rod is connected firmly with quick-release connector, connecting pin and quick-release connector pair
The connecting hole for answering position to be arranged can accommodate fixed pin, and fixed pin penetrates connecting hole and is threadedly coupled therewith, can play solid
Purpose that is fixed and limiting upper nail rod, avoids nail rod from falling off in use.
Further setting: connector includes the concentric connecting rod set on quick-release connector end of one, and connecting rod end is set
There is a gag lever post perpendicular to connecting rod, connecting pin is correspondingly provided in keyhole shape and the receiving that is adapted to connecting rod and gag lever post
Slot, holding tank top are equipped with opening.
By using above-mentioned technical proposal, connecting rod is fixed with gag lever post, during installation user only need connecting rod and
Gag lever post is inserted into the holding tank of keyhole shape, and be open corresponding gag lever post, it will be able to connect quick-release connector with upper nail rod, more
Change more efficient, required time is shorter.
Further setting: annular groove, ring are offered on the side wall of position between gag lever post and quick-release connector in upper nail rod
Slot internal screw thread connects restraining position ring block, and stop collar corresponding opening is equipped with through slot, the width and opening width and connecting rod width of through slot
It is all the same.
Further setting: contradicting on gag lever post when stop collar is abutted with annular groove close to gag lever post side, and is open and leads to
When the annular groove side wall of slot dislocation, stop collar and quick-release connector side contradicts, opening is overlapped with through slot.
By using above-mentioned technical proposal, when replacing quick-release connector, stop collar is rotated and is contradicted to quick-release connector side
Annular groove side wall on, at this time opening be overlapped with through slot, user can take out quick-release connector；When quick-release connector after the installation is completed,
Stop collar, which reversely rotates, to abut to annular groove close to gag lever post side, and opening misplaces with through slot at this time, and stop collar forms gag lever post
Limit is to complete the fixation of quick-release connector.
Further setting: button is slidably connected in closing piece, button is connected in closing piece by spring.
Further setting: the side wall on thread jacket close to closing piece side is equipped with bulge loop, and handle is equipped with suitable with bulge loop
The groove matched.
In conclusion the utility model has the following beneficial effects:
Medical staff go can the suitable quick-release connector of quick-replaceable or upper nail rod, to reduce required when replacement tool
Time, replacing suitable connector or mandril can reduce the skill requirement of operator, reduces the difficulty of operation, is promoted simultaneously
The efficiency of operation.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawing.
Fig. 1 is the overall structure diagram of embodiment 1；
Fig. 2 is the enlarged diagram in embodiment 1 at A；
Fig. 3 is in embodiment 1 for showing the structural schematic diagram of connector；
Fig. 4 is in embodiment 2 for showing the structural schematic diagram of connector.
In figure, 1, upper nail rod；11, connecting pin；12, annular groove；13, stop collar；14, through slot；2, thread jacket；3, handle；
4, closing piece；5, nut；6, quick-release connector；7, connector；71, receiving hole；72, connecting hole；73, fixed pin；74, connecting rod；75,
Gag lever post；76, holding tank；77, it is open；8, button；9, bulge loop；91, groove.
Specific embodiment
Specific embodiments of the utility model will be further explained with reference to the accompanying drawing.
The technical scheme adopted by the utility model is
Embodiment 1, a kind of medical nail puller are arranged outside upper nail rod 1 as shown in Figure 1, including the upper nail rod 1 of cylindrical shape
There is cricoid thread jacket 2, is arranged with handle 3 on thread jacket 2；3 one end of handle is connected with the closing piece being set in nail rod 1
4, closing piece 4 is connected in nail rod 1 by the limit of nut 5, and button 8 is slidably connected in closing piece 4, and button 8 is connected by spring
In closing piece 4.
As depicted in figs. 1 and 2, the side wall on thread jacket 2 close to 4 side of closing piece is equipped with bulge loop 9, and handle 3 is equipped with
The groove 91 being adapted to bulge loop 9, by the cooperation of groove 91 and bulge loop 9, handle 3 can be limited on thread jacket 2, be not easy to make
At the sliding of handle 3, guarantee the stability that nail puller uses.
As shown in figures 1 and 3, upper nail rod 1 is connected with quick-release connector 6, upper 1 top of nail rod close to one end of nut 5
For connecting pin 11, connecting pin 11 is fixedly connected by connector 7 with quick-release connector 6.Connector 7 includes the company of corresponding upper nail rod 1
Connect end 11 be set to quick-release connector 6 in receiving holes 71, receiving hole 71 be parallel to nail rod 1 setting, and the diameter of receiving hole 71 with
The diameter of connecting pin 11 is identical, and receiving hole 71 is adapted to connecting pin 11 and is connected through a screw thread between each other.
As shown in figures 1 and 3, when upper nail rod 1 is threadedly secured in receiving hole 71, connecting pin 11 and quick-release connector
The connecting hole 72 for successively penetrating them is correspondingly provided on 6, connecting hole 72 is arranged perpendicular to upper nail rod 1.It is arranged in connecting hole 72
Fixed pin 73, fixed pin 73 are threadably secured with connecting hole 72.
After upper nail rod 1 is connected firmly with quick-release connector 6, the connection of connecting pin 11 and the setting of 6 corresponding position of quick-release connector
Hole 72 can accommodate fixed pin 73, and fixed pin 73 penetrates connecting hole 72 and is threadedly coupled therewith, can play fixed and limit
The purpose of upper nail rod 1, avoids nail rod 1 from falling off in use
Embodiment 2, a kind of medical nail puller, difference from example 1 is that, as shown in figure 3, connector 7 includes
The concentric connecting rod 74 set on 6 end of quick-release connector of one, 74 end of connecting rod are equipped with the gag lever post perpendicular to connecting rod 74
75, connecting pin 11 is correspondingly provided in keyhole shape and the holding tank 76 that is adapted to connecting rod 74 and gag lever post 75, holding tank 76
Top is equipped with opening 77.
Annular groove 12 is offered in upper nail rod 1 on the side wall of position between gag lever post 75 and quick-release connector 6, in annular groove 12
It is threadedly coupled restraining position ring block 13,13 corresponding opening 77 of stop collar is equipped with through slot 14, the width and 77 width of opening of through slot 14 and company
74 width of extension bar is all the same.It contradicts on gag lever post 75, and opens when stop collar 13 is abutted with annular groove 12 close to 75 side of gag lever post
Mouth 77 and through slot 14 misplace, and when 12 side wall of annular groove of stop collar 13 and 6 side of quick-release connector contradicts, be open 77 and 14 weight of through slot
It closes.
When replacing quick-release connector 6, stop collar 13 is rotated and is contradicted to 12 side wall of annular groove of 6 side of quick-release connector, this
When opening 77 be overlapped with through slot 14, user can take out quick-release connector 6；When quick-release connector 6 after the installation is completed, stop collar 13 is anti-
It abuts to annular groove 12 to rotation close to 75 side of gag lever post, be open 77 and the dislocation of through slot 14 at this time, and stop collar 13 is to gag lever post 75
Limit is formed to complete the fixation of quick-release connector 6.
It is the preferred embodiment of the utility model above, does not impose any limitation on the present invention,
All foundation the technical essence of the utility model any simple modification, equivalent change and modification made to the above embodiment,
Belong in the range of utility model technical solution.
Claims (8)
1. a kind of medical nail puller, including upper nail rod (1), it is characterised in that: be arranged with thread jacket outside the upper nail rod (1)
(2), thread jacket (2) is externally connected with handle (3), and handle (3) one end is connected with the closing piece (4) being set on nail rod (1), lock
Block (4) is connected on nail rod (1) by nut (5) limit, and upper nail rod (1) is connected with fastly close to the one end of nut (5)
Changing-over head (6), quick-release connector (6) are fixedly connected by connector (7) with the end of upper nail rod (1), upper nail rod (1) include with fastly
The connecting pin (11) of changing-over head (6) connection.
2. a kind of medical nail puller according to claim 1, it is characterised in that: the connector (7) includes following closely on corresponding
Bar (1) connecting pin (11) and the receiving hole (71) being set in quick-release connector (6), the connecting pin of receiving hole (71) and upper nail rod (1)
(11) it is adapted to, and is threadedly coupled with connecting pin (11).
3. a kind of medical nail puller according to claim 2, it is characterised in that: the quick-release connector (6) and connecting pin
(11) it is correspondingly provided with the connecting hole (72) for successively penetrating quick-release connector (6) and connecting pin (11), passes through screw thread in connecting hole (72)
It is connected with fixed pin (73).
4. a kind of medical nail puller according to claim 1, it is characterised in that: the connector (7) includes that one is coaxial
The heart is set to the connecting rod (74) of quick-release connector (6) end, and connecting rod (74) end is equipped with the gag lever post perpendicular to connecting rod (74)
(75), connecting pin (11) are correspondingly provided in keyhole shape and the holding tank that is adapted to connecting rod (74) and gag lever post (75)
(76), opening (77) is equipped at the top of holding tank (76).
5. a kind of medical nail puller according to claim 4, it is characterised in that: be located at gag lever post on the upper nail rod (1)
(75) annular groove (12) are offered on the side wall of position between quick-release connector (6), annular groove (12) internal screw thread connects restraining position ring block
(13), stop collar (13) corresponding opening (77) is equipped with through slot (14), the width and opening (77) width and connecting rod of through slot (14)
(74) width is all the same.
6. a kind of medical nail puller according to claim 5, it is characterised in that: the stop collar (13) is leaned on annular groove (12)
Nearly gag lever post (75) side contradicts on gag lever post (75) when abutting, and opening (77) and through slot (14) misplace, stop collar (13)
When contradicting with annular groove (12) side wall of quick-release connector (6) side, opening (77) is overlapped with through slot (14).
7. a kind of medical nail puller according to claim 1, it is characterised in that: slidably connect in the closing piece (4) by
Button (8), button (8) are connected in closing piece (4) by spring.
8. a kind of medical nail puller according to claim 7, it is characterised in that: close to closing piece on the thread jacket (2)
(4) side wall of side is equipped with bulge loop (9), and handle (3) is equipped with the groove (91) being adapted to bulge loop (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820799150.7U CN209032616U (en) | 2018-05-24 | 2018-05-24 | A kind of medical nail puller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820799150.7U CN209032616U (en) | 2018-05-24 | 2018-05-24 | A kind of medical nail puller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209032616U true CN209032616U (en) | 2019-06-28 |
Family
ID=67028536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820799150.7U Expired - Fee Related CN209032616U (en) | 2018-05-24 | 2018-05-24 | A kind of medical nail puller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209032616U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111012472A (en) * | 2019-12-31 | 2020-04-17 | 浙江康慈医疗科技有限公司 | A go up nail spanner when being used for multiaxis pedicle of vertebral arch screw to implant |
-
2018
- 2018-05-24 CN CN201820799150.7U patent/CN209032616U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111012472A (en) * | 2019-12-31 | 2020-04-17 | 浙江康慈医疗科技有限公司 | A go up nail spanner when being used for multiaxis pedicle of vertebral arch screw to implant |
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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 |
Granted publication date: 20190628 Termination date: 20210524 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |