CN205698052U - Three-dimension virtual reality matching pedicle nail inserts laser assisted position guiding device - Google Patents
Three-dimension virtual reality matching pedicle nail inserts laser assisted position guiding device Download PDFInfo
- Publication number
- CN205698052U CN205698052U CN201620297200.2U CN201620297200U CN205698052U CN 205698052 U CN205698052 U CN 205698052U CN 201620297200 U CN201620297200 U CN 201620297200U CN 205698052 U CN205698052 U CN 205698052U
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- China
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- registration arm
- locking mechanism
- telescopic sleeving
- needle
- virtual reality
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- Withdrawn - After Issue
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Abstract
This utility model relates to medical instruments field, inserts laser assisted position guiding device specifically for a kind of three-dimension virtual reality matching pedicle nail.This utility model includes positioning element, a pair positioning needle and a pair needle for trephination；Described positioning element includes horizontal range adjusting means, a pair telescopic sleeving rod and a pair registration arm, two telescopic sleeving rod angulation adjusting brackets, and two registration arm are arranged on two telescopic sleeving rods, and angular adjustment frame is provided with the first locking mechanism；Described telescopic sleeving rod is socketed to form successively by loop bar, is provided with the second locking mechanism between two loop bars；It is provided with guiding channel, positioning needle and needle for trephination in described registration arm to be all located in guiding channel, between registration arm and positioning needle, is provided with the 3rd locking mechanism；Described horizontal range adjusting means includes sleeve pipe, vertical rod, channel, gear and a pair tooth bar, and sleeve pipe is provided with the 4th locking mechanism；Two tooth bars are not hinged on two telescopic sleeving rods.It is relatively low that this utility model can either be accurately positioned the most again cost.
Description
Technical field
This utility model relates to medical instruments field, puts specifically for a kind of three-dimension virtual reality matching pedicle nail
Enter laser assisted position guiding device.
Background technology
Can pedicle screw internal fixation operation be a kind of operation critically important in current neurosurgery, exactly
Screw pedicle is inserted and does not damage the key that neural vertebral body is these operation success or failure.
And whether the approach position, direction and the angle that how to be accurately controlled pedicle nail in art determine it
Can enter in vertebral body smoothly, this problem relating to pedicle nail is positioned.
At present the mode to pedicle nail location is divided into two big classes:
One class is preoperative location, its be utilize preoperative patient is done all kinds of scanning computed tomographies, MRI to be to determine focus
Position, then relies on the path of insertion of the Professional knowledge plan pedicle nail of doctor and performs the operation, in operation
It is aided with X-ray examination again the path of insertion of pedicle nail is corrected and assists；
This is current the most most common way, but such method error is relatively big, need repeatedly by
In art, the image of X-ray examination carries out putting nail route with reference to constantly correction is actual, and this will be greatly increased answering of operation
Miscellaneous degree, add operation ray exposed amount, add operating time, patient is proposed the highest simultaneously
Requirement.
If it addition, carry out repeatedly X-ray examination in operation also can increase the amount of radiation of patient and medical worker,
Human body is worked the mischief.
Another kind of is Intraoperative position navigation, and this is one of the most state-of-the-art current location mode, Ke Yizhi
The information constantly of road probe location, guidance precisely operation, but it is expensive, it is difficult to popularize,
Common City Hospitals, most County Hospital could not power be bought.
Thus, invent a kind of actual demand meeting current City Hospitals and most County Hospital and purchase
Buying ability, can either be accurately positioned the most lower-cost pedicle screw positioning device simultaneously becomes the task of top priority.
Utility model content
The purpose of this utility model is: provide one can either be accurately positioned the most lower-cost three-dimensional simultaneously
Virtual reality matching pedicle nail inserts laser assisted position guiding device.
This utility model is achieved through the following technical solutions:
A kind of three-dimension virtual reality matching pedicle nail inserts laser assisted position guiding device, it is characterised in that:
Including positioning element, a pair for carrying out the positioning needle of pre-determined bit and a pair for boring on vertebra on vertebra
Take the needle for trephination in duct；
Described positioning element includes horizontal range adjusting means, a pair telescopic sleeving rod and a pair registration arm, two
The hinged formation in front portion one of telescopic sleeving rod is for regulating the angular adjustment frame of angle, two registration arm
It is arranged on respectively in the rearward end of two telescopic sleeving rods Detachable, angular adjustment frame is additionally provided with and can stretch two
Contracting loop bar relative rotation position carries out the first locking mechanism locking or unlocking；
Described telescopic sleeving rod is socketed to form successively by least two joint loop bars, arranges between two loop bars of arbitrary neighborhood
There is the second locking mechanism that two loop bar displaced posi can be locked or unlock；
The guiding channel axially penetrating through registration arm along registration arm, described positioning needle and brill it is provided with in described registration arm
Vent needle is all located in guiding channel and freely up and down can move in guiding channel, registration arm and positioning needle
Between be provided with the 3rd locking mechanism that both displaced posi can be locked or unlock；
Described horizontal range adjusting means include being vertically fixed on the jointed shaft front end of angular adjustment frame sleeve pipe,
The vertical rod through sleeve pipe and freely up and down can moved in sleeve pipe, the passage being vertically fixed on vertical rod bottom
Pipe, can be rotatably set in channel is internal and rotation centerline is perpendicular with channel centrage gear with
And penetrating the tooth bar in channel from the axial both sides level of channel respectively a pair, sleeve pipe is provided with can be right
Both sleeve pipe and vertical rod displaced posi carries out the 4th locking mechanism locking or unlocking；
Two tooth bars engage with the gear being arranged in channel respectively so that two tooth bars can in channel edge
Contrary direction synchronizing moving, the rearward end of two tooth bars is respectively hinged on two telescopic sleeving rods.
Being provided with screw thread on the tip periphery wall of described needle for trephination lower end, needle for trephination rear end can connect electric boring instrument.
Its operation principle and process are as follows:
Step one: operation consent, utilizes computer software to carry out the most preoperative planning and determines that pedicle nail is inserted
Route, and calculate in this utility model between angle and the two registration arm bottoms between two telescopic sleeving rods
Distance.
Step 2: in operation, according to preoperative planning, is adjusted to the angle precomputed by angular adjustment frame
Spend and lock the first locking mechanism, adjust distance between two registration arm bottoms to precomputing simultaneously
Length also locks the second locking mechanism and the 4th locking mechanism.
Step 3: two positioning needles be inserted respectively in two registration arm and lock the 3rd locking mechanism, borrowing simultaneously
The auxiliary of X-ray examination image in the collimation laser and art accepted on chengguang plate is helped to confirm position and the angle of approach
Two registration arm are then placed in the patient by degree, until the leading section of two positioning needles penetrates on vertebra pre-
Order position thus realize pre-determined bit；
After again finely tuning and confirm the route that registration arm is inserted, release the locking of the 3rd position-limit mechanism, and utilize
Registration arm is fixed on vertebra by the fixing tooth on registration arm bottom；
After registration arm realizes fixing, positioning needle is exited.
Step 4: after being stretched into by two needle for trephinations guiding channel in registration arm, carry out tapping brill on vertebra
Take duct；
Then needle for trephination is exited, pedicle nail is inserted fixing can the completing of realization along guiding channel and performs the operation.
In order to preferably implement this programme, also provide for following prioritization scheme:
Further, it also includes fixed component；Described fixed component includes leading section and angular adjustment frame
Jointed shaft rear end fix connection linking arm, be arranged on linking arm rearward end handle, fixed on the connecting arm
The first mounting seat, the first chengguang plate being arranged in the first mounting seat, fixed on the connecting arm and be positioned at
The second mounting seat below one mounting seat and be arranged in the second mounting seat and parallel with the first chengguang plate
Two chengguang plates；Described second chengguang plate extends forward so that the first chengguang plate and the second chengguang plate form rank up and down
The drop of scalariform.
It is radiated on two chengguang plates the light path of cross laser the most on the same line by observing simultaneously
Know whether this utility model collimates.
Further, the rearward end of two tooth bars realizes hinge each via a hinged seat and two telescopic sleeving rods respectively
Connect in succession；
Described hinged seat is by the pedestal being installed on corresponding telescopic sleeving rod and the Coupling group being hinged with pedestal
Become；The rearward end of tooth bar is socketed in the trepanning of Coupling.
So making this utility model not using when, whole horizontal range adjusting means can remove
It is easy to preoperative disinfecting.
Further, described fixed component also includes that upper suspension connects on the connecting arm and lower end when static
Face can keep the self-balancing comparable device of level.
Here, the effect of self-balancing comparable device is to provide a reference to patient, allows patient know this practicality
Novel inserts whether angle hangs down to the tangent line at this place, corresponding point of contact, approach position on spinal column posterior longitudinal ligament line
Directly.
Further, the upper end of described registration arm is provided with depth adjustment helical member, depth adjustment helical member
Lower thread be connected in the upper port of registration arm, the middle part of depth adjustment helical member is provided with and registration arm
The duct that guiding channel is connected.
Depth adjustment helical member is long to adapt to different operation routes for the total length adjusting whole registration arm
Degree.
Further, the lower port end face of described registration arm is equipped with fixing tooth.
Further, the periphery wall subscript of described each registration arm is provided with different labellings.
Described labelling is able in the different registration arm of x-ray plain film display.
Further, the top of described needle for trephination is provided with the limit penetrating registration arm length for limiting needle for trephination
Position is protruding.
Further, described first locking mechanism, the second locking mechanism and the 4th locking mechanism are compensating roller
Bolt；
Described 3rd locking mechanism is the limited impression being arranged on positioning needle sidewall and is arranged on registration arm side
Locating part on wall；
Described locating part includes the spacing ring being located on registration arm sidewall and can front and back moving freely and sets
Put the spring between spacing ring right side wall and registration arm internal perisporium.
Further, one of them telescopic sleeving rod described is provided with protractor.
Before relatively for technology, the beneficial effects of the utility model are:
1. the laser system essence during this utility model can utilize preoperative CT, MRI scan image and operation
Really positioning operation route, registration, it may also be used for percutaneous nailing；
2. this utility model advantage of lower cost, it is possible to meet the purchasing power of country hospital；
3. use after this utility model, it is possible to substantially reduce the number of times of scanning in art, greatly reduce patient and
The amount of radiation of medical worker, reduces operating time；
4. after using, the operation making pedicle nail insert left-hand seat simpler, easy, it is to avoid damage neural and
Bonehew cortex risk, hemorrhage less；
5. this utility model is dismantled and assembled, it is simple to sterilization.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation；
Fig. 2 is the left view of Fig. 1；
Fig. 3 is channel internal structure schematic cross-section；
Fig. 4 is telescopic sleeving rod and registration arm junction partial schematic diagram；
Fig. 5 is the schematic cross-section of positioning needle and registration arm；
Fig. 6 is the schematic cross-section of needle for trephination and registration arm；
Fig. 7 is that this utility model uses view one；
Fig. 8 is that this utility model uses view two.
Label declaration:
1-positioning element, 11-telescopic sleeving rod, 111-the first locking mechanism, 112-the second locking mechanism, 113-
Protractor, 12-registration arm, 121-the 3rd locking mechanism, 122-depth adjustment helical member, 123-fix tooth,
124-spacing ring, 125-spring, 126-labelling, 13-horizontal range adjusting means, 131-sleeve pipe, 132-are vertical
Bar, 133-channel, 134-gear, 135-tooth bar, 136-hinged seat, 137-the 4th locking mechanism；
2-fixed component, 21-linking arm, 211-the first mounting seat, 212-the first chengguang plate, 213-second pacify
Dress seat, 214-the second chengguang plate, 215-self-balancing comparable device, 22-handle, 23-fixed block；
3-positioning needle, 31-limited impression, 4-needle for trephination, 41-spacing preiection.
Detailed description of the invention
Illustrate below in conjunction with the accompanying drawings this utility model is elaborated:
As shown in figures 1-8, this utility model includes positioning element 1, a pair for carrying out pre-determined bit on vertebra
Positioning needle 3 and a pair for drilling through the needle for trephination 4 in duct on vertebra；
Described positioning element 1 includes horizontal range adjusting means 13, a pair telescopic sleeving rod 11 and a pair registration arm
12, the hinged formation in front portion one of two telescopic sleeving rods 11 is used for regulating the angular adjustment frame of angle,
It is arranged in the rearward end of two telescopic sleeving rods 11, on angular adjustment frame two registration arm 12 Detachables respectively
It is additionally provided with the first locking mechanism that two telescopic sleeving rod 11 relative rotation positions can be locked or unlock
111；
Described telescopic sleeving rod 11 is socketed to form successively by least two joint loop bars, sets between two loop bars of arbitrary neighborhood
It is equipped with the second locking mechanism 112 that two loop bar displaced posi can be locked or unlock；
The guiding channel axially penetrating through registration arm 12 along registration arm 12 it is provided with in described registration arm 12, described fixed
Position pin 3 and needle for trephination 4 are all located in guiding channel and freely up and down can move in guiding channel, fixed
The both displaced posi can being locked or unlocking it is provided with between position arm 12 and positioning needle 3
Three locking mechanisms 121；
Described horizontal range adjusting means 13 includes the sleeve pipe being vertically fixed on the jointed shaft front end of angular adjustment frame
131, the vertical rod 132 that through sleeve pipe 131 and freely up and down can move in sleeve pipe 131, be vertically fixed on vertical
Channel 133 on bar 132 bottom, can be rotatably set in that channel 133 is internal and rotation centerline with
Gear 134 that channel 133 centrage is perpendicular and a pair are respectively from the axial both sides water of channel 133
Putting down and penetrate the tooth bar 135 in channel 133, sleeve pipe 131 is provided with can be to sleeve pipe 131 and vertical rod 132 liang
Person's displaced posi carries out the 4th locking mechanism 137 locking or unlocking；
Two tooth bars 135 engage so that two tooth bars 135 with the gear 134 being arranged in channel 133 respectively
Can in channel 133 synchronizing moving in opposite direction, the rearward end of two tooth bars 135 is respectively hinged at
On two telescopic sleeving rods 11.
In order to preferably implement this programme, also provide for following prioritization scheme:
Further, it also includes fixed component 2；
Described fixed component 2 includes that the linking arm being connected is fixed, with the jointed shaft rear end of angular adjustment frame, in leading section
21, the handle 22 being arranged on linking arm 21 rearward end, the first mounting seat 211 being installed on linking arm 21,
The first chengguang plate 212 of being arranged in the first mounting seat 211, it is installed on linking arm 21 and is positioned at the first peace
Dress seat 211 below the second mounting seat 213 and be arranged in the second mounting seat 213 and with the first chengguang plate
212 the second parallel chengguang plates 214；
Described second chengguang plate 214 extends forward and makes the first chengguang plate 212 and the second chengguang plate about 214
Form stair-stepping drop.
It is radiated on two chengguang plates the light path of cross laser the most on the same line by observing simultaneously
Know that this utility model is the most vertical.
Further, the rearward end of two tooth bars 135 is respectively each via a hinged seat 136 and two telescopics
Bar 11 realizes being articulated and connected；
Described hinged seat 136 is by the pedestal being installed on corresponding telescopic sleeving rod 11 and the set being hinged with pedestal
Fitting forms；The rearward end of tooth bar 135 is socketed in the trepanning of Coupling.
So making this utility model not using when, whole horizontal range adjusting means 13 can be pulled down
It is easy to preoperative disinfecting.
Further, described fixed component 2 also includes that upper suspension is connected on linking arm 21 and when static
Lower surface can keep the self-balancing comparable device 215 of level.
Here, the effect of self-balancing comparable device 216 is to provide a reference to patient, allows patient know this
Utility model insert angle whether to the tangent line at this place, corresponding point of contact, approach position on spinal column posterior longitudinal ligament line
Vertically.
Further, the upper end of described registration arm 12 is provided with depth adjustment helical member 122, depth adjustment
The lower thread of helical member 122 is connected in the upper port of registration arm 12, in depth adjustment helical member 122
Portion is provided with the duct that the guiding channel with registration arm 12 is connected.
Depth adjustment helical member 122 is for adjusting the total length of whole registration arm 12 to adapt to different operation roads
Line length.
Further, the lower port end face of described registration arm 12 is equipped with fixing tooth 123.
Further, the periphery wall subscript of described each registration arm 12 is provided with different labellings 126.
Further, the top of described needle for trephination 4 is provided with for limiting needle for trephination 4 that to penetrate registration arm 12 long
The spacing preiection 41 of degree.
Further, described first locking mechanism the 111, second locking mechanism 112 and the 4th locking mechanism 137
For compensating roller bolt；
Described 3rd locking mechanism 121 is the limited impression 31 being arranged on positioning needle 3 sidewall and is arranged on
Locating part on registration arm 12 sidewall；
Described locating part includes the spacing ring 124 being located on registration arm 12 sidewall and can front and back moving freely
And it is arranged on the spring 125 between spacing ring 124 right side wall and registration arm 12 internal perisporium.
Further, one of them telescopic sleeving rod 11 described is provided with protractor 113.
Further, the rearward end of described handle 22 is installed with fixed block.
The effect of fixed block is to provide a fixed position for some other medical treatment the most snakelike arm of retainer instrument,
After being fixed on snakelike arm by fixed block, both hands can be discharged without gripping this utility model again.
Although this utility model uses specific embodiment and alternative thereof illustrate this utility model and say
Bright, it is to be understood that, without departing from the variations and modifications in scope of the present utility model
Implement.It is therefore understood that in addition to being limited by appended claims and condition of equivalent thereof, this practicality
Novel do not limited by all senses.
Claims (10)
1. three-dimension virtual reality matching pedicle nail inserts a laser assisted position guiding device, and its feature exists
In: include positioning element (1), the positioning needle (3) being used for carrying out pre-determined bit for a pair on vertebra and a pair use
In the needle for trephination (4) drilling through duct on vertebra；
Described positioning element (1) include horizontal range adjusting means (13), a pair telescopic sleeving rod (11) and
A pair registration arm (12), the hinged formation in front portion one of two telescopic sleeving rods (11) is used for regulating angle
The angular adjustment frame of degree, is arranged on two telescopic sleeving rods (11) two registration arm (12) Detachables respectively
In rearward end, angular adjustment frame is additionally provided with and two telescopic sleeving rods (11) relative rotation position can be locked
The first locking mechanism (111) that is fixed or that unlock；
Described telescopic sleeving rod (11) by least two joint loop bars be socketed to form successively, two loop bars of arbitrary neighborhood it
Between be provided with the second locking mechanism of two loop bar displaced posi being locked or unlocking
(112)；
Be provided with in described registration arm (12) along registration arm (12) axially penetrate through registration arm (12) guiding lead to
Road, described positioning needle (3) and needle for trephination (4) are all located in guiding channel and can be in guiding channels
Freely up and down moving, being provided with between registration arm (12) and positioning needle (3) can be to both displaced posi
Carry out the 3rd locking mechanism (121) locking or unlocking；
Described horizontal range adjusting means (13) includes being vertically fixed on the jointed shaft front end of angular adjustment frame
Sleeve pipe (131), the vertical rod (132) through sleeve pipe (131) and freely up and down can moved in sleeve pipe (131),
The channel (133) that is vertically fixed on vertical rod (132) bottom, can be rotatably set in channel (133)
Gear (134) that internal and rotation centerline is perpendicular with channel (133) centrage and distinguishing for a pair
The tooth bar (135) in channel (133), sleeve pipe (131) is penetrated from the axial both sides level of channel (133)
It is provided with and sleeve pipe (131) and both displaced posi of vertical rod (132) can be locked or release lock
The 4th fixed locking mechanism (137)；
Two tooth bars (135) engage so that two with the gear (134) being arranged in channel (133) respectively
Tooth bar (135) can in channel (133) synchronizing moving in opposite direction, two tooth bars (135)
Rearward end is respectively hinged on two telescopic sleeving rods (11).
Three-dimension virtual reality matching pedicle nail the most according to claim 1 is inserted laser assisted location and is drawn
Lead device, it is characterised in that: it also includes fixed component (2)；
Described fixed component (2) includes that the connection being connected is fixed, with the jointed shaft rear end of angular adjustment frame, in leading section
Arm (21), it is arranged on the handle (22) of linking arm (21) rearward end, is installed on linking arm (21)
First mounting seat (211), the first chengguang plate (212) being arranged in the first mounting seat (211), it is installed in
Linking arm (21) is upper and is positioned at second mounting seat (213) of the first mounting seat (211) lower section and installs
At the second chengguang plate (214) that the second mounting seat (213) is upper and parallel with the first chengguang plate (212)；
Described second chengguang plate (214) extends forward and makes the first chengguang plate (212) and the second chengguang plate (214)
Form stair-stepping drop up and down.
Three-dimension virtual reality matching pedicle nail the most according to claim 1 is inserted laser assisted location and is drawn
Lead device, it is characterised in that: the rearward end of two tooth bars (135) is respectively each via a hinged seat (136)
Realize being articulated and connected with two telescopic sleeving rods (11)；
Described hinged seat (136) by the pedestal being installed on corresponding telescopic sleeving rod (11) and cuts with scissors mutually with pedestal
The Coupling composition connect；The rearward end of tooth bar (135) is socketed in the trepanning of Coupling.
Three-dimension virtual reality matching pedicle nail the most according to claim 2 is inserted laser assisted location and is drawn
Lead device, it is characterised in that: described fixed component (2) also includes that upper suspension is connected to linking arm (21)
Go up and lower surface can keep the self-balancing comparable device (215) of level when static.
Three-dimension virtual reality matching pedicle nail the most according to claim 1 is inserted laser assisted location and is drawn
Lead device, it is characterised in that: the upper end of described registration arm (12) is provided with depth adjustment helical member (122),
The lower thread of depth adjustment helical member (122) is connected in the upper port of registration arm (12), depth adjustment
The middle part of helical member (122) is provided with the duct that the guiding channel with registration arm (12) is connected.
Three-dimension virtual reality matching pedicle nail the most according to claim 1 is inserted laser assisted location and is drawn
Lead device, it is characterised in that: the lower port end face of described registration arm (12) is equipped with fixing tooth (123).
Three-dimension virtual reality matching pedicle nail the most according to claim 1 is inserted laser assisted location and is drawn
Lead device, it is characterised in that: the periphery wall subscript of described each registration arm (12) is provided with different labellings (126).
Three-dimension virtual reality matching pedicle nail the most according to claim 1 is inserted laser assisted location and is drawn
Lead device, it is characterised in that: the top of described needle for trephination (4) is provided with and wears for limiting needle for trephination (4)
Enter the spacing preiection (41) of registration arm (12) length.
Three-dimension virtual reality matching pedicle nail the most according to claim 1 is inserted laser assisted location and is drawn
Lead device, it is characterised in that: described first locking mechanism (111), the second locking mechanism (112) and the 4th
Locking mechanism (137) is compensating roller bolt；
Described 3rd locking mechanism (121) is the limited impression (31) being arranged on positioning needle (3) sidewall
And it is arranged on the locating part on registration arm (12) sidewall；
Described locating part includes the spacing ring being located on registration arm (12) sidewall and can front and back moving freely
And the spring (125) that is arranged between spacing ring (124) right side wall and registration arm (12) internal perisporium (124).
Three-dimension virtual reality matching pedicle nail the most according to claim 1 is inserted laser assisted location and is drawn
Lead device, it is characterised in that: on described one of them telescopic sleeving rod (11), protractor (113) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620297200.2U CN205698052U (en) | 2016-04-11 | 2016-04-11 | Three-dimension virtual reality matching pedicle nail inserts laser assisted position guiding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620297200.2U CN205698052U (en) | 2016-04-11 | 2016-04-11 | Three-dimension virtual reality matching pedicle nail inserts laser assisted position guiding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205698052U true CN205698052U (en) | 2016-11-23 |
Family
ID=57310260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620297200.2U Withdrawn - After Issue CN205698052U (en) | 2016-04-11 | 2016-04-11 | Three-dimension virtual reality matching pedicle nail inserts laser assisted position guiding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205698052U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105852986A (en) * | 2016-04-11 | 2016-08-17 | 庄源东 | Laser-assisted positioning guide device for three-dimensional virtual reality fitting pedicle screw placement |
| CN113001068A (en) * | 2021-02-25 | 2021-06-22 | 湖北文理学院 | Automatic preheating device for pipeline welding |
-
2016
- 2016-04-11 CN CN201620297200.2U patent/CN205698052U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105852986A (en) * | 2016-04-11 | 2016-08-17 | 庄源东 | Laser-assisted positioning guide device for three-dimensional virtual reality fitting pedicle screw placement |
| CN113001068A (en) * | 2021-02-25 | 2021-06-22 | 湖北文理学院 | Automatic preheating device for pipeline welding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161123 Effective date of abandoning: 20180320 |
|
| AV01 | Patent right actively abandoned |