CN209186925U - A kind of hollow screw sets nail tool - Google Patents
A kind of hollow screw sets nail tool Download PDFInfo
- Publication number
- CN209186925U CN209186925U CN201822259238.2U CN201822259238U CN209186925U CN 209186925 U CN209186925 U CN 209186925U CN 201822259238 U CN201822259238 U CN 201822259238U CN 209186925 U CN209186925 U CN 209186925U
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- China
- Prior art keywords
- hollow screw
- sleeve pipe
- described sleeve
- handle
- nail tool
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Abstract
The utility model discloses a kind of hollow screws to set nail tool, mainly includes casing and handle, and the junction of described sleeve pipe and the handle is provided with the ratchet mechanism to realize the relatively fixed of the handle and described sleeve pipe and rotate；Also, described sleeve pipe proximally arrives distal end and penetrates through, and forms hollow screw channel；The distal end of described sleeve pipe is provided with several forms for being connected to the hollow screw channel.It is simple, easy to use that the hollow screw of the utility model sets nail tool construction, cooperation arthroscope uses the parameters such as implantation site and orientation angles, the ailhead height that can be observed in real time and adjust hollow screw, greatly increase the accuracy for setting nail, save operating time, it avoids being imaged using x-ray simultaneously, reduces the harm of radiation.
Description
Technical field
The utility model relates to orthopaedic medical treatment technical field, in particular to a kind of hollow screw sets nail tool.
Background technique
Hollow screw can be used in many bone surgeries as the fixation material of inside bone, in the prior art,
Hollow screw is that doctor directly manually hammers into inside the bone of patient when in use, and doctor needs to see in x-ray fluoroscopy
Hollow screw implantation bone depth is examined, doctor can be made to be exposed in radiation environment, it is extremely harmful.
With the development of technology, arthroscopic techniques are gradually applied in similar operation, and arthroscope can observe implantation material in real time
Implantation situation passes through this skill in the case where needing strict control to the ailhead height of hollow screw especially at some articular surfaces
Art, can the implantation of real-time control hollow screw position and angle, while X-ray being avoided to radiate.But current hollow screw sets nail
Device inconvenience uses in arthroscopic techniques.
Utility model content
The utility model provides a kind of hollow screw and sets nail tool, it easily can effectively make under arthroscope hollow
Screw is fixed on corresponding bone affected part, to avoid radiating using X-ray bring.
The technical solution of the utility model is as follows:
A kind of hollow screw sets nail tool, includes mainly casing and handle, described sleeve pipe and the junction of the handle are set
It is equipped with relatively fixed and rotation the ratchet mechanism to realize the handle and described sleeve pipe；Also, described sleeve pipe is proximally
It is penetrated through to distal end, forms hollow screw channel；The distal end of described sleeve pipe is provided with several views for being connected to the hollow screw channel
Window.
The utility model is provided with ratchet mechanism, rotate handle can by ratchet mechanism；Also, it is provided in boot proximal end
It is connected to the form in hollow screw channel, form shape is unlimited, so that can be by arthroscopic techniques in operation, real-time display is hollow
The video of screw placement facilitates doctor's accurate observation to the implantation site and orientation angles of hollow screw, and passes through arthroscope
The ailhead height of viewing hollow screw in real time.The utility model is mainly by casing, the ratchet machine of handle and setting between them
Structure composition, structure is simple, manufacture and use are convenient.
In a preferred embodiment, described sleeve pipe is connect in a manner of orthogonal with the handle.
In a preferred embodiment, the tail end of the proximal end of described sleeve pipe and the handle is connected with each other.
In a preferred embodiment, the ratchet mechanism includes ratchet and pawl, wherein the ratchet is fixedly connected on
Or be made into integration in the proximal end of described sleeve pipe, the pawl is fixed on the tail end of the handle.It is set in handle and cannula connection
It sets ratchet and ratchet is made to be located at the proximal end of casing, pawl is made to be fixed on handle tail end, handle is completed by pawl and ratchet cooperation
The fixation and rotation of facing sleeve, more conducively surgical operation, convenient for the observation of different direction.
In a preferred embodiment, the form that the distal end of described sleeve pipe opens up is 2-10mm, according to different size
Arthroscope and casing depending on, more preferably 3 ± 0.5mm.
In a preferred embodiment, the form in described sleeve pipe opens up multiple, multiple 360 ° of equalizations of the form
Point, easily facilitate accurate observation and positioning.In a preferred embodiment, the form in described sleeve pipe opens up three, adjacent
120 degree of the form interval.
In a preferred embodiment, the handle is apery machine ergonomic form, user-friendly.
In a preferred embodiment, described sleeve pipe is cylinder.
In a preferred embodiment, the tail end of the handle has inner cavity, and the ratchet mechanism is located in the inner cavity.
In a preferred embodiment, the hollow screw is set nail tool cooperation arthroscope and is used.
Compared with prior art, the beneficial effects of the utility model are as follows:
The hollow screw of the utility model set nail tool construction it is simple, easy to use, cooperation arthroscope use can be real-time
It observes and the parameters such as the implantation site and orientation angles, the ailhead height that adjust hollow screw, greatly increases the accuracy for setting nail, save
Operating time is saved, while avoiding being imaged using x-ray, reduces the harm of radiation.
Detailed description of the invention
Fig. 1 is that the hollow screw of the utility model embodiment sets the partial sectional view of nail tool, it is shown that ratchet mechanism
Specific setting；
Fig. 2 is the enlarged drawing of the ratchet portions of Fig. 1；
Fig. 3 is the overhead sectional view that the hollow screw of the utility model embodiment sets the ratchet mechanism of nail tool；
In figure,
1- casing；11- hollow screw channel；12- form；2- handle；The inner cavity of 231- handle 2；3- ratchet mechanism；31-
Ratchet；32- pawl.
Specific embodiment
In the hollow screw implant surgery of orthopaedics, the height that the angle and ailhead of hollow screw implantation are exposed, direct shadow
It rings surgical effect and wants strict control implantation depth especially at fracture face, ailhead is made to be slightly below bone face.Hollow screw
The height that ailhead exposes directly affects the intensity of hollow screw, at the same the performances such as hollow screw resisting pull out forces depend primarily on its with
The locking structure of cortex bone junction, if implantation depth is too deep, head threads are connect with bone cancellous bone, and ailhead penetrates cortex
Osteoplaque substantially reduces hollow screw intensity；Implantation depth is excessively shallow, and head locking screw thread is not connect with cortex bone completely, by force
Degree can also reduce.In the prior art there are no can observe in real time and adjust hollow screw implantation site and orientation angles,
The tool of ailhead height etc..The hollow screw of the utility model sets nail tool and has filled up such blank, makes in conjunction with arthroscope
With implantation site and orientation angles, the ailhead height etc. that can be observed in real time and adjust hollow screw, guarantee the strong of hollow screw
Degree.The hollow screw of the utility model sets the implantation related surgical that nail tool is suitble to hollow nail under arthroscope, without special bone kind
Class limitation.
The utility model is further described below in conjunction with the drawings and specific embodiments.Following embodiment is only used for
For example, rather than the restriction protection scope of the utility model.
Embodiment
- Fig. 3 referring to Figure 1, a kind of hollow screw provided in this embodiment are set nail tool, are specifically included that
Casing 1；
Handle 2；
The ratchet mechanism 3 of the junction of described sleeve pipe 1 and the handle 2 is set, and ratchet mechanism 3 is to realize the hand
The relatively fixed and rotation of handle 2 and described sleeve pipe 1；
Also,
Described sleeve pipe 1 proximally arrives distal end and penetrates through, and forms a hollow screw channel 11；
The distal end of described sleeve pipe 1 is provided with several forms 12 for being connected to the hollow screw channel 11.Wherein, casing 1
The one end of the casing 1 far from doctor when distal end refers to operation.
The present embodiment sets nail tool provided with ratchet mechanism 3, revolve handle 2 can by 3 facing sleeve 1 of ratchet mechanism
Turn；Also,
In several forms 12 (form shape is unlimited) for being connected to hollow screw channel 11 that 1 distal end of casing opens up, so that
Can be by arthroscopic techniques in operation, the video of viewing in real time and display hollow screw implantation facilitates doctor's accurate observation to sky
The ailhead height of the implantation site and orientation angles of heart screw, hollow screw.
- Fig. 2 referring to Figure 1, in the present embodiment, described sleeve pipe 1 are connect in a manner of orthogonal with the handle 2,
And the tail end of the proximal end of described sleeve pipe 1 and the handle 2 is connected with each other.The casing 1 when the proximal end of described sleeve pipe 1 refers to operation
Close to one end of doctor, the tail end of the handle 2 refers to one end opposite with the part for gripping.The utility model can be with
Casing and handle are connected with each other with other modes, other link positions, the above is only citings, rather than limit.
Fig. 2-Fig. 3 is referred to, the ratchet mechanism 3 includes ratchet 31 and pawl 32, wherein the ratchet 31 is fixedly connected
In the proximal end of described sleeve pipe 1, the pawl 32 is fixed on the tail end 21 of the handle 2.The present embodiment is in handle 2 and casing 1
Junction setting ratchet and pawl arrangement simultaneously makes ratchet 31 be located at the proximal end of casing 1, so that pawl 32 is fixed on handle 2, and then pass through
Pawl 32 and ratchet 31 cooperate, and complete the fixation and rotation of 2 facing sleeve 1 of handle, more conducively surgical operation, convenient for difference
The observation in orientation.The setting of the ratchet and pawl of the utility model can also using other modes and setting position, it is above only
For citing, rather than restriction.
In the present embodiment, the length for the form 12 that the distal end of described sleeve pipe 1 opens up is 3mm or so, such as 3 ±
0.5mm.Form shape is unlimited, but poroid for kidney-shaped as shown in Figure 1 in the present embodiment.
It is highly preferred that the form 12 in described sleeve pipe 1 opens up three, it is spaced between the form 12 of adjacent two
120 degree, such setting easily facilitates accurate observation and positioning.But in the present invention, the size, shape and setting of form
Quantity, setting position are unlimited, and those skilled in the art can be arranged on demand, the above is only citing, are not used to limit originally practical new
The protection scope of type.
Referring to Figure 1 shown in-Fig. 3, the embodiment of the present invention casing 1 is cylinder, and the handle 2 is imitative ergonomics
Shape.
In the present embodiment, the tail end of the handle 2 has inner cavity 231, and the ratchet 31 and the pawl 32 are respectively positioned on
In the inner cavity 231.
In the present embodiment, the hollow screw is set nail tool and is used with unification arthroscope.
The hollow screw of the present embodiment sets nail tool when in use, and the distal end of casing 1 and bone face paste are closed, with hollow spiral shell
The upper nail device matched is followed closely, by hollow screw 4 along 1 interplantation of casing to the marrow.In operation, casing 1 and 2 junction of handle can be passed through
Ratchet mechanism 3, rotating handle 2 to suitable position facilitates surgical；Arthroscope Real Time Imaging Technology is used simultaneously, is passed through
Form 12 on casing 1 comes implantation position and angle, ailhead height of real-time display hollow screw etc., greatly improves operation effect
Rate and precision.
The hollow screw of the utility model sets nail tool mainly by casing, the ratchet machine of handle and setting between them
Form composition on structure, casing, structure is simple, manufacture and use are convenient.Tool of the utility model to the handle that do not mention above
Without limitation, handle shape shown in the drawings is merely illustrative for shape, structure, the shape and structure of the handle of the utility model
It can also be there are many deforming, as long as being provided with ratchet mechanism between casing.
Disclosed above is only the preferred embodiment in the utility model.There is no all thin of detailed descriptionthe for preferred embodiment
Section, also not limiting the utility model is only the specific embodiment.Obviously, according to the content of this specification, can make very much
Modifications and variations.These embodiments are chosen and specifically described to this specification, is the original in order to preferably explain the utility model
Reason and practical application, so that one of ordinary skill in the art be enable to utilize the utility model well.The utility model is only by right
The limitation of claim and its full scope and equivalent.
Claims (10)
1. a kind of hollow screw sets nail tool, which is characterized in that it mainly include casing and handle, described sleeve pipe and the handle
Junction is provided with relatively fixed and rotation the ratchet mechanism to realize the handle and described sleeve pipe；Also,
Described sleeve pipe proximally arrives distal end and penetrates through, and forms hollow screw channel；
The distal end of described sleeve pipe is provided with several forms for being connected to the hollow screw channel.
2. hollow screw according to claim 1 sets nail tool, which is characterized in that described sleeve pipe is with the handle with mutual
Vertical mode connects.
3. hollow screw according to claim 1 or 2 sets nail tool, which is characterized in that the proximal end of described sleeve pipe with it is described
The tail end of handle is connected with each other.
4. hollow screw according to claim 3 sets nail tool, which is characterized in that the ratchet mechanism includes ratchet and spine
Pawl, wherein the ratchet is fixedly connected on or is made into integration in the proximal end of described sleeve pipe, and the pawl is fixed on the handle
Tail end.
5. hollow screw according to claim 1 sets nail tool, which is characterized in that the distal end of described sleeve pipe opens up described
Form is 2-10mm or so.
6. hollow screw according to claim 1 sets nail tool, which is characterized in that the distal end of described sleeve pipe opens up described
Form is 3 ± 0.5mm or so.
7. hollow screw described according to claim 1 or 5 or 6 sets nail tool, which is characterized in that the view in described sleeve pipe
Window opens up multiple, multiple 360 ° of equal equal parts of the form.
8. hollow screw according to claim 1 sets nail tool, which is characterized in that described sleeve pipe is cylinder, the hand
Handle is apery machine ergonomic form.
9. hollow screw according to claim 1 sets nail tool, which is characterized in that the tail end of the handle has inner cavity,
The ratchet mechanism is located in the inner cavity.
10. hollow screw according to claim 1 sets nail tool, which is characterized in that the hollow screw is set nail tool and matched
Arthroscope is closed to use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822259238.2U CN209186925U (en) | 2018-12-29 | 2018-12-29 | A kind of hollow screw sets nail tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822259238.2U CN209186925U (en) | 2018-12-29 | 2018-12-29 | A kind of hollow screw sets nail tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209186925U true CN209186925U (en) | 2019-08-02 |
Family
ID=67430823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822259238.2U Active CN209186925U (en) | 2018-12-29 | 2018-12-29 | A kind of hollow screw sets nail tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209186925U (en) |
-
2018
- 2018-12-29 CN CN201822259238.2U patent/CN209186925U/en active Active
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