CN202537646U - Metal pediculus arcus vertebrae spherical needle - Google Patents
Metal pediculus arcus vertebrae spherical needle Download PDFInfo
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- CN202537646U CN202537646U CN2012200529844U CN201220052984U CN202537646U CN 202537646 U CN202537646 U CN 202537646U CN 2012200529844 U CN2012200529844 U CN 2012200529844U CN 201220052984 U CN201220052984 U CN 201220052984U CN 202537646 U CN202537646 U CN 202537646U
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- cone
- probe
- handle
- diameter
- pedicle
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Abstract
The utility model relates to a metal pediculus arcus vertebrae spherical needle. A spherical probe is arranged at the top position of the needle; one end of a cone of the needle is connected with the spherical probe, and the other end of the cone is connected with a handle; and the spherical probe, the cone and the handle are cast and molded integrally. The front end of the spherical needle is provided with blunt and smooth probe sphere end and a high-elasticity cone, so that cortex of bone is prevented from being punctured easily during surgery, a nail channel can be found automatically in a spongy bone, the position is accurate, the operation risk is lowered, and the working efficiency is increased; and the metal pediculus arcus vertebrae spherical needle is particularly suitable for patients with complex pediculus arcus vertebrae.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, the particularly a kind of pedicle of vertebral arch spherical probes that vertebra patient rehabilitation is used, genus medical product technical field of being used for.
Background technology
In vertebra patient's operative treatment process; Often will insert the fixedly pedicle nail of usefulness, traditional treatment is that the doctor uses bone vertebra free-hand pedicle nail of inserting in patient's body, because bone vertebra front end is sharp keen; The dynamics of inserting is difficult to be held; Wear out pedicle bone cortex easily, also might damage patient's spinal cord, nerve root, internal organs or trunk etc., have bigger risk.Therefore, traditional bone vertebra that front end is sharp keen should carefully be operated in operation, is difficult to find accurately the position of inserting the vertebra nail again, and this operation simultaneously also can bring bigger misery to the patient.
Summary of the invention
This utility model relates to a kind of pedicle of vertebral arch spherical probes; It adopts the rustless steel manufacturing; End at probe is provided with spheric probe, makes probe have the cone of blunt and slick pommel and favorable elasticity, is not easy to wear out cortical bone during operation; And can in spongy bone, seek the nail road voluntarily, improve success rate of operation and the purpose that reduces operation risk thereby reach.
The technical scheme that this utility model is taked:
A kind of pedicle of vertebral arch spherical probes comprises spheric probe, cone and handle, it is characterized in that: spheric probe places the cone tip position, and cone one end connects spheric probe, the other end connects handle, spheric probe, cone and handle three in one casting.
Described cone is established cone small end and big end two parts of cone, and the cone small end is connected with probe, and the big end of cone is connected with handle; The diameter of the big end of cone is greater than the diameter of cone small end, and the diameter of the big end of cone is less than the diameter of handle, and the bulb diameter of spherical probes is greater than the diameter of cone small end.
The total length of pedicle of vertebral arch spherical probes is 200～250mm, and the length of cone is 100～120mm, and the length of handle is 100～120mm; The diameter of handle is 5～8mm; The cone outside diameter is 3～4mm, and the cone end diameter is 1.5～2mm, and the bulb diameter of spheric probe is 1.5～3.5mm.
The end face of described spherical probes is provided with slick ball surface.
This metal pedicle of vertebral arch spherical probes adopts the manufacturing of medical grade stainless steel material, its elastic modelling quantity: ε>=195000N/mm
2, yield strength: б>=21kgf/mm
2
Beneficial effect of the present invention:
Be used for the free-hand pedicle nail of inserting of bone awl, bone awl front end is sharp keen in the past, and dynamics is difficult to be held, and wears out pedicle bone cortex easily, may Spinal Cord, nerve root, internal organs or trunk, there is bigger risk; Adopt this metal pedicle of vertebral arch spherical probes; Have the cone of blunt and slick pommel and favorable elasticity at the front end of probe, be not easy to wear out cortical bone during operation, can in spongy bone, seek the nail road voluntarily; The position is accurate, has reduced medical-risk and has improved work efficiency again.
Description of drawings
Fig. 1 is this utility model structural representation;
Fig. 2 is the explanation to embodiment.
The specific embodiment
The contrast accompanying drawing specifies its structure.
In Fig. 1; This metal pedicle of vertebral arch spherical probes 1 comprises spheric probe 3, cone 2 and handle 6 three parts; Cone small end 4 is connected with spheric probe 3; The big end 5 of cone is connected with handle 6, and spheric probe places the tip position of pedicle of vertebral arch spherical probes, spheric probe, cone and handle three in one casting.
The specification of pedicle of vertebral arch spherical probes has multiple; One of which does; The total length of probe is that 230mm, cone length are that the length of 120mm, handle is that the diameter of 110mm, handle is 6mm, and the cone outside diameter is that 3.5mm, cone small end are 1.5mm, and the bulb diameter of probe is 2.5mm.This metal pedicle of vertebral arch spherical probes adopts the manufacturing of medical grade rustless steel, makes cone have better elastic, its elastic modelling quantity: ε>=195000N/mm
2, yield strength: б>=21kgf/mm
2
During operation, behind patient's spinal column, hit exactly longitudinal incision, the cleaning wound surface is by standard pedicle of vertebral arch pin entry point location.Remove pedicle of vertebral arch surface cortical bone with high speed abrasive drilling boring, manifest spongy bone.By certain angle and direction, left hand buttresses spherical probes 1, and it gently is pressed in the spongy bone, and the reuse hammer is slowly squeezed into (as shown in Figure 2) in the pedicle of vertebral arch with probe.If the spongy bone width is suitable, probe can very smoothly get into vertebral body; If the probe head end is met cortical bone, rap probe with hammer, head end can change direction voluntarily and cross pedicle of vertebral arch along the cortical bone sideslip, in case the probe head end passes pedicle of vertebral arch, drag probe can obviously reduce, and halts up to running into vertebral body the place ahead cortical bone.After extracting probe,, select the ascending expansion nail of different size probe road diameter successively for use, and permanent sound is as positioning needle according to the incline direction adjustment inserting needle direction of probe head end.After perspective is confirmed the probe location direction,, detect through the probe and to follow closely the road wall and be screwed into suitable pedicle nail after complete with the screw tap tapping of suitable diameter.This spherical probes especially is suitable for the complicated patient of pedicle locations, for example the protruding patient with the obvious rotation of vertebral body of thoracic vertebra side.Elastic metallic cone and slick and sly pommel can avoid penetrating pedicle bone cortex effectively.
Claims (5)
1. metal pedicle of vertebral arch spherical probes; Comprise spheric probe, cone and handle; It is characterized in that: spheric probe (3) places cone (2) tip position, and cone one end connects spheric probe, the other end connects handle (6), spheric probe, cone and the molding of handle integrally casting.
2. metal pedicle of vertebral arch spherical probes according to claim 1 is characterized in that: cone (6) is established cone small end (4) and big end (5) two parts of cone, and the cone small end is connected with spheric probe, and the big end of cone is connected with handle; The diameter of the big end of cone is greater than the diameter of cone small end, and the bulb diameter of spherical probes is greater than the diameter of cone small end.
3. metal pedicle of vertebral arch spherical probes according to claim 1; It is characterized in that: the length of cone is 100～120mm; The length of handle is 100～120mm, and the diameter of handle is 5～8mm, and the cone outside diameter is 3～4mm; The cone end diameter is 1.5～2mm, and the bulb diameter of spheric probe is 1.6～3.5mm.
4. metal pedicle of vertebral arch spherical probes according to claim 1 is characterized in that: said spheric probe is provided with slick ball surface.
5. metal pedicle of vertebral arch spherical probes according to claim 1 is characterized in that: described metal pedicle of vertebral arch spherical probes is the manufacturing of medical grade stainless steel material, its elastic modelling quantity: ε>=195000N/mm
2, yield strength: б>=21kgf/mm
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200529844U CN202537646U (en) | 2012-02-17 | 2012-02-17 | Metal pediculus arcus vertebrae spherical needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200529844U CN202537646U (en) | 2012-02-17 | 2012-02-17 | Metal pediculus arcus vertebrae spherical needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202537646U true CN202537646U (en) | 2012-11-21 |
Family
ID=47158345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200529844U Expired - Fee Related CN202537646U (en) | 2012-02-17 | 2012-02-17 | Metal pediculus arcus vertebrae spherical needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202537646U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103251385A (en) * | 2012-02-17 | 2013-08-21 | 刘少喻 | Spherical metal probe for pedicle of vertebral arch |
| CN106963470A (en) * | 2017-04-06 | 2017-07-21 | 陈同林 | A kind of minimally invasive replacement and fixation system of pelvis |
| CN110899776A (en) * | 2020-02-12 | 2020-03-24 | 北京罗森博特科技有限公司 | Grinding drill manipulator |
-
2012
- 2012-02-17 CN CN2012200529844U patent/CN202537646U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103251385A (en) * | 2012-02-17 | 2013-08-21 | 刘少喻 | Spherical metal probe for pedicle of vertebral arch |
| CN106963470A (en) * | 2017-04-06 | 2017-07-21 | 陈同林 | A kind of minimally invasive replacement and fixation system of pelvis |
| CN110899776A (en) * | 2020-02-12 | 2020-03-24 | 北京罗森博特科技有限公司 | Grinding drill manipulator |
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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 |
Granted publication date: 20121121 Termination date: 20150217 |
|
| EXPY | Termination of patent right or utility model |