CN208598500U - A kind of pedicle screw pilot pin - Google Patents
A kind of pedicle screw pilot pin Download PDFInfo
- Publication number
- CN208598500U CN208598500U CN201820038106.4U CN201820038106U CN208598500U CN 208598500 U CN208598500 U CN 208598500U CN 201820038106 U CN201820038106 U CN 201820038106U CN 208598500 U CN208598500 U CN 208598500U
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- China
- Prior art keywords
- needle
- positioning
- needle body
- pedicle screw
- bodies
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Abstract
The utility model relates to medical instruments fields, specifically a kind of pedicle screw pilot pin, including two positioning needle bodies, described two positioning needle bodies include sequentially connected needle handle, needle handle and needle body, and multiple spherical protuberances are equally spacedly equipped on the needle body, needle point is equipped with far from needle handle one end in the needle body, the needle handle shape of first positioning needle body is spherical shape, the needle handle shape of second positioning needle body is cylindricality, and described two positioning needle bodies are inserted into respectively in the not ipsilateral other pedicle screw trajectory in left and right.The utility model is inserted into the not ipsilateral other pedicle screw trajectory in left and right respectively using two positioning needle bodies, left and right sides is distinguished when having an X-rayed in favor of side position, the depth that screw way can directly be estimated in perspective using the spherical protuberances on needle body simultaneously, avoids screw length selection fault.
Description
Technical field
The utility model relates to medical instruments field, specifically a kind of pedicle screw pilot pin.
Background technique
Usually need to be placed in fixed pedicle screw in spinal surgical procedure on vertebra, traditional method is doctor
It is raw that pedicle screw trajectory is prepared in vertebra pedicle of vertebral arch using passage-opening awl, it is then placed in pilot pin and is had an X-rayed, confirm screw way position
Set it is errorless after pedicle screw is placed in again.Due to there is important neural blood vessel around pedicle of vertebral arch, it is necessary to assure screw way position is quasi-
It is really errorless, therefore the effect of pilot pin is extremely important.
Utility model content
The purpose of this utility model is to provide a kind of pedicle screw pilot pins, are inserted into respectively using two positioning needle bodies
In the not ipsilateral other pedicle screw trajectory in left and right, left and right sides is distinguished when having an X-rayed in favor of side position, while prominent using the spherical shape on needle body
The depth that can directly estimate screw way in perspective is played, screw length selection fault is avoided.
The purpose of this utility model is achieved through the following technical solutions:
A kind of pedicle screw pilot pin, including two positioning needle bodies, described two positioning needle bodies include being sequentially connected
Needle, needle handle and needle body, and multiple spherical protuberances are equally spacedly equipped on the needle body, in the needle body far from needle handle
One end is equipped with needle point, and the needle handle shape of the first positioning needle body is spherical shape, and the needle handle shape of the second positioning needle body is cylindricality, and described
Two positioning needle bodies are inserted into respectively in the not ipsilateral other pedicle screw trajectory in left and right.
The needle is equipped with antiskid thread.
The needle point is arc-shaped.
The long 4cm of needle body, is just equipped with a spherical protuberances on the needle body at interval of 1cm.
The advantages of the utility model and good effect are as follows:
1, the utility model is inserted into the not ipsilateral other pedicle screw trajectory in left and right respectively using two positioning needle bodies, in favor of
Left and right sides is distinguished when the perspective of side position, improves procedure efficiency.
2, the utility model can directly estimate the depth of screw way using the spherical protuberances on needle body in perspective, avoid screw
Length selection fault, also avoid because replacement screw cause operating time extend or screw it is too long cause peripheral vessels nerve damage
Wound, substantially increases operation safety.
3, antiskid thread is carved in the needle of positioning needle body in surface by the utility model, increases frictional force, pinches conducive to patient
It holds, improves procedure efficiency.
4, the needle point of the utility model positioning needle body is arc-shaped, can avoid needle point damage front nervus vasculairs, further
Improve operation safety.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Wherein, 1 is needle handle, and 2 be needle handle, and 3 be needle body, and 4 be needle point, and 5 be spherical protuberances, and 6 be antiskid thread.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
As shown in Figure 1, the utility model includes two positioning needle bodies, described two positioning needle bodies include sequentially connected
1, needle handle 2 and needle body 3 are equally spacedly equipped with multiple spherical protuberances 5 by needle on the needle body 3, separate in the needle body 3
2 one end of needle handle is equipped with needle point 4, and 2 shape of needle handle of the first positioning needle body is spherical shape, and 2 shape of needle handle of the second positioning needle body is column
Shape.When the utility model is used, two positioning needle bodies are inserted into respectively in the not ipsilateral other pedicle screw trajectory in left and right, in favor of side position
Left and right sides is distinguished when perspective, while the spherical protuberances 5 on needle body can directly estimate the depth of screw way in perspective, avoid screw long
Degree selection fault.
As shown in Figure 1, the needle of described two positioning needle bodies increases frictional force, is conducive to art antiskid thread is equipped on 1
Person's grip, in addition the needle point 4 of described two positioning needle bodies is arc-shaped, can avoid the damage of needle point 4 front nervus vasculairs.
In the present embodiment, the needle body 3 is 4cm long, and the every 1cm interval in surface is just equipped with a spherical protuberances 5, is equipped with altogether
4 spherical protuberances.
In the present embodiment, described two positioning needle bodies are that medical stainless steel is made, and can be developed under perspective.
The working principle of the utility model are as follows:
(1) patient prepares pedicle screw trajectory in vertebra pedicle of vertebral arch with passage-opening awl.
(2) two positioning needle bodies are inserted into screw ways, and other according to the left and right sides of pedicle of vertebral arch, spherical needle handle 2 is inserted into left side
Positioning needle body, right side is inserted into the positioning needle body of cylindricality needle handle 2, and needle handle 2 can cover screw way entrance at this time, reduce bleeding.
(3) X-ray examination is carried out, judges that left and right sides is other according to the shape (spherical or cylindricality) of needle handle 2, according to needle body 3 and ball
Position of the shape protrusion 5 in perspective, can accurate judgement screw way position, and estimate the length of screw way.
(4) after confirmation screw way is accurate, according to the pedicle screw for the screw way length selection suitable length estimated, by vertebra
Pedicle screw merging.
Claims (4)
1. a kind of pedicle screw pilot pin, it is characterised in that: including two positioning needle bodies, described two positioning needle bodies include
Sequentially connected needle is equally spacedly equipped with (1), needle handle (2) and needle body (3) multiple spherical shapes on the needle body (3) and dashes forward
It rises (5), is equipped with needle point (4) far from needle handle (2) one end in the needle body (3), needle handle (2) shape of the first positioning needle body is ball
Shape, needle handle (2) shape of the second positioning needle body is cylindricality, and described two positioning needle bodies are inserted into the not ipsilateral other vertebra in left and right respectively
In nut screw way.
2. pedicle screw pilot pin according to claim 1, it is characterised in that: (1) is equipped with anti-skidding spiral shell by the needle
Line.
3. pedicle screw pilot pin according to claim 1, it is characterised in that: the needle point (4) is arc-shaped.
4. pedicle screw pilot pin according to claim 1, it is characterised in that: the long 4cm of the needle body (3), described
A spherical protuberances (5) is just equipped on needle body (3) at interval of 1cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820038106.4U CN208598500U (en) | 2018-01-10 | 2018-01-10 | A kind of pedicle screw pilot pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820038106.4U CN208598500U (en) | 2018-01-10 | 2018-01-10 | A kind of pedicle screw pilot pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208598500U true CN208598500U (en) | 2019-03-15 |
Family
ID=65659157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820038106.4U Expired - Fee Related CN208598500U (en) | 2018-01-10 | 2018-01-10 | A kind of pedicle screw pilot pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208598500U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021103326A1 (en) * | 2019-11-28 | 2021-06-03 | 南微医学科技股份有限公司 | Ultrasonic needle probe and ultrasonic needle assembly |
-
2018
- 2018-01-10 CN CN201820038106.4U patent/CN208598500U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021103326A1 (en) * | 2019-11-28 | 2021-06-03 | 南微医学科技股份有限公司 | Ultrasonic needle probe and ultrasonic needle assembly |
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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: 20190315 Termination date: 20200110 |