CN113017676B - Supplementary headstock of oval hole CT location - Google Patents
Supplementary headstock of oval hole CT location Download PDFInfo
- Publication number
- CN113017676B CN113017676B CN202110229452.7A CN202110229452A CN113017676B CN 113017676 B CN113017676 B CN 113017676B CN 202110229452 A CN202110229452 A CN 202110229452A CN 113017676 B CN113017676 B CN 113017676B
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- fixedly connected
- head support
- head
- rotating
- rod
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- 239000002023 wood Substances 0.000 claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims description 15
- 210000003739 neck Anatomy 0.000 description 11
- 210000004491 foramen ovale Anatomy 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 210000005036 nerve Anatomy 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000002591 computed tomography Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000001953 sensory effect Effects 0.000 description 2
- 210000000427 trigeminal ganglion Anatomy 0.000 description 2
- 208000002193 Pain Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 208000004296 neuralgia Diseases 0.000 description 1
- 208000021722 neuropathic pain Diseases 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 210000003625 skull Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 206010044652 trigeminal neuralgia Diseases 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/04—Positioning of patients; Tiltable beds or the like
- A61B6/0485—Inflatable rests for lifting of patients
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/032—Transmission computed tomography [CT]
- A61B6/035—Mechanical aspects of CT
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/10—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis
- A61B90/14—Fixators for body parts, e.g. skull clamps; Constructional details of fixators, e.g. pins
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Veterinary Medicine (AREA)
- Pathology (AREA)
- Public Health (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Radiology & Medical Imaging (AREA)
- Biophysics (AREA)
- Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Optics & Photonics (AREA)
- Pulmonology (AREA)
- Theoretical Computer Science (AREA)
- Neurosurgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Abstract
The invention discloses an oval hole CT positioning auxiliary head frame which comprises a sliding plate, a head support and a head and neck part on a human body, wherein rubber is sleeved on the outer side of the head support, a cushion block is fixedly connected to the front end of the head support, a sliding block is fixedly connected to the bottom of the head support, a round block is fixedly connected to the top of the sliding plate, a wood board is rotatably connected to the inside of the head support, two baffles are fixedly connected to the wood board, and the head is placed on a third air bag in the head support. According to the invention, through adjusting the height and the left and right of the head of the patient, the long axis section of the oval hole under CT can be better exposed, the puncture part can be accurately positioned, the error in puncture positioning can be reduced, the scanning times are reduced under the same operation technology, the head of the patient is fixed left and right, and the inaccuracy of positioning caused by the left and right offset of the head of the patient after CT positioning is prevented.
Description
Technical Field
The invention relates to the technical field of oval foramen puncture, in particular to an oval foramen CT positioning auxiliary head frame.
Background
Trigeminal neuralgia is a common neuropathic pain of the head and the face, is characterized by severe pain of the attacks, seriously affects the daily life of a patient, anatomically comprises a sensory nerve and a motor nerve, wherein the sensory nerve forms a trigeminal ganglion before exiting the cranium and emits an eye branch, a maxillary branch and a mandibular branch; skull is penetrated out of the supraorbital fissure, the round hole and the oval hole respectively, and due to the characteristics of anatomical orientation, the retropuncture through the oval hole is mostly selected clinically to reach the trigeminal ganglion for injection or radio frequency treatment. In order to improve the accuracy of the puncture, the operation is often performed under CT guidance.
At present, most of the time when the puncture of the foramen ovale is performed is to use a head pillow pad to slightly lift the lower jaw under the shoulder of a patient so as to display the long axis section of the foramen ovale under CT. However, because the height of the headrest is difficult to adjust, a certain difficulty is required to obtain a good CT section (the headrest is too low to show, the head of a patient is suspended too high, and the body position is difficult to keep), in addition, even under the condition that the height is met, because the two sides of the head of the patient do not have a fixture, the head is easy to shift left and right in the puncturing process, the CT section is caused to shift, even a puncturing path is blocked, unnecessary CT scanning is caused, and the radiation dose of the patient is increased.
Disclosure of Invention
The invention aims to solve the defects that in the prior art, the puncture part of a patient cannot be displayed at the optimal angle of a CT machine image and the head of the patient cannot be fixed, and provides an oval hole CT positioning auxiliary head frame.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides an oval hole CT location auxiliary head frame, includes sliding plate, head support and human upper head and neck, the outside cover of head support has rubber, the front end fixedly connected with cushion of head support, head support bottom fixedly connected with slider, the top fixedly connected with kicking block of sliding plate, the inside rotation of head support is connected with the plank, fixedly connected with two baffles on the plank, the head is placed on the inside third gasbag of head support, the neck is placed on the cushion, the slider slides on the lateral wall of kicking block, be connected with adjustment mechanism on the head support;
the adjusting mechanism comprises two pull ropes fixedly connected to the bottom end of the head support, two vertical rods are fixedly connected to the sliding plate, a plurality of hooks are fixedly connected to the two vertical rods, and the two pull ropes and the vertical rods are positioned on the left side and the right side of the head support;
the wood board is connected with a limiting mechanism and a rotating mechanism;
the limiting mechanism comprises a third air bag fixedly connected with the top of the wood board, the third air bag is positioned in the head support, the side surfaces of the two baffle plates are fixedly connected with first air bags, the two first air bags are provided with connecting holes, the connecting holes are fixedly connected with air ducts, the upper rubber of the head support is fixedly connected with a second air bag, and the two first air bags are in through connection with the second air bags through the air ducts;
the utility model provides a wood board, including the inside fixed connection's of dwang, the one end fixedly connected with rotation handle of dwang, the inside wall fixedly connected with bracing piece of dwang, be connected with the rotation wheel on the bracing piece, fixedly connected with dwang on the rotation wheel, the inside wall fixedly connected with first spring pole and second spring pole of dwang, the other end of first spring pole and the bottom fixed connection of one end of dwang, the top fixedly connected with sleeve pipe of dwang, the sleeve pipe is hollow state, the bottom fixed connection of second spring pole and dwang other end, the top fixedly connected with dead lever of one end of dwang and one end fixedly connected with of second spring pole, the other end fixedly connected with button of dead lever, fixedly connected with two fixation hooks on the button, the dwang lateral wall is equipped with the spout, the button passes through sliding connection between spout and the dwang, the position fixedly connected with a plurality of fixation buckles on the dwang corresponding with the button, two fixation buckles correspond with a plurality of fixation buckles.
Preferably, the outer side wall of the rotating rod is provided with a limiting groove, a plurality of fixed pipes are fixedly connected in the limiting groove, and the fixed pipes correspond to the sleeve.
Preferably, the rotating rod penetrates through the wood plate and extends to the inner side and the outer side of the head support, and the rotating rod is connected with the inner side wall of the head support in a rotating mode.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, through adjusting the height and the left and right of the head of the patient, the long-axis section of the oval hole under CT can be better exposed, the puncture part can be accurately positioned, the error in puncture positioning can be reduced, the scanning times are reduced under the same operation technology, and the radiation to the patient is reduced.
2. Fix about patient's head, prevent to follow CT location, because patient's head left and right sides skew, and lead to CT tangent plane change, cause the inaccuracy of location, influence last puncture operation, added an gasbag at patient's head, can have an accurate regulation to patient's head deflection angle, make things convenient for CT location, also can assist fixed patient's head, improve patient's in-process comfort level of puncture.
Drawings
Fig. 1 is a schematic structural view of an auxiliary head frame for locating a circular foramen ovale CT according to the present invention;
FIG. 2 is an overall view of an auxiliary head frame for CT positioning of an oval hole according to the present invention;
FIG. 3 is a side view of an auxiliary head frame for CT positioning of an oval hole according to the present invention;
FIG. 4 is an enlarged view of FIG. 1 at A;
FIG. 5 is a perspective view of a head support;
FIG. 6 is a cross-sectional view of a head support;
FIG. 7 is a left side view of the head support;
fig. 8 is a front view of the push button.
In the figure: 1 sliding plate, 2 plank, 3 cushion blocks, 4 baffle plates, 5 first air bags, 6 second air bags, 7 air ducts, 8 rotary handles, 9 rotary rods, 10 limit grooves, 11 fixed pipes, 12 first spring rods, 13 push buttons, 14 fixed rods, 15 rotary plates, 16 second spring rods, 17 sleeves, 18 head supports, 19 third air bags, 20 heads, 21 necks, 22 support rods, 23 round blocks, 24 sliding blocks, 25 pull ropes, 26 hooks, 27 sliding grooves, 28 fixed buckles and 29 fixed hooks.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Referring to fig. 1-8, an auxiliary head frame for locating a circular oval hole CT comprises a sliding plate 1, a head support 18, and a head 20 and a neck 21 on a human body, wherein rubber is sleeved outside the head support 18, when the head 20 and the neck 21 of a human body are put on the head support 18, the rubber sleeved outside the head support 18 can more comfortably protect the head 20 and the neck 21, when the head support 18 adjusts the head 20, the rubber can further protect the head 20 and the neck 21, the front end of the head support 18 is fixedly connected with a cushion block 3, because the cushion block 3 is positioned at the neck 21, the face of the cushion block 3 which can be punctured is upward and is aligned with the position of a scanned image of the CT machine, further be convenient for the locating of oval hole puncture in-process, head support 18 bottom fixedly connected with slider 24, the top fixedly connected with circle piece 23 of sliding plate 1, sliding plate 1 is in order to get into the CT machine through sliding plate 1 when carrying out the CT scanning, carry out oval hole puncture location, slider 24 can slide on circle piece 23, can be further adjust head 20, let the image can be accurate shine the puncture part, head support 18's inside rotation is connected with plank 2, fixedly connected with two baffles 4 on the plank 2, head 20 is placed on head support 18 inside third gasbag 19, neck 21 is placed on cushion 3.
The head support 18 is connected with an adjusting mechanism, the adjusting mechanism comprises two pull ropes 25 fixedly connected to the bottom end of the head support 18, two vertical rods are fixedly connected to the sliding plate 1, a plurality of hooks 26 are fixedly connected to the two vertical rods, the two pull ropes 25 and the vertical rods are positioned on the left side and the right side of the head support 18, the head support 18 can be further fixed, the wood board 2 is connected with a limiting mechanism and a rotating mechanism, the limiting mechanism comprises a third air bag 19 fixedly connected with the top of the wood board 2, the third air bag 19 is positioned in the head support 18, the third air bag 19 can be driven to rotate through the rotation of the wood board 2, a comfortable position of the head 20 of a patient can be found for positioning when the height is further adjusted, the side surfaces of the two baffle plates 4 are fixedly connected with first air bags 5, connecting holes are formed in the two first air bags 5, and an air duct 7 is fixedly connected to the connecting holes, the upper rubber of the head bracket 18 is fixedly connected with a second air bag 6, two first air bags 5 are in through connection with the second air bags 6 through air ducts 7, the rotating mechanism comprises a rotating rod 9 fixedly connected with the inside of the wood board 2, one end of the rotating rod 9 is fixedly connected with a rotating handle 8, the inner side wall of the rotating rod 9 is fixedly connected with a supporting rod 22, the supporting rod 22 is rotationally connected with a rotating wheel, the rotating wheel is fixedly connected with a rotating plate 15, the rotating wheel can drive the rotating plate 15 to swing left and right, the inner side wall of the rotating rod 9 is fixedly connected with a first spring rod 12 and a second spring rod 16, the first spring rod 12 and the second spring rod 16 can further play a buffering role on the rotating plate 15, the other end of the first spring rod 12 is fixedly connected with the bottom of one end of the rotating plate 15, the top end of the rotating plate 15 is fixedly connected with a sleeve 17, the sleeve 17 is hollow, the bottom fixed connection of second spring rod 16 and the rotor plate 15 other end, the top fixedly connected with dead lever 14 of rotor plate 15 and the one end of second spring rod 16 one end fixed connection, the other end fixedly connected with button 13 of dead lever 14, fixedly connected with two fixed hooks 29 on the button 13, the lateral wall of rotor plate 9 is equipped with spout 27, the button 13 is through sliding connection between spout 27 and the rotor plate 9, the position department fixed connection that corresponds with button 13 on the rotor plate 9 has a plurality of fixed buckles 28, two fixed hooks 29 correspond with a plurality of fixed buckles 28, two fixed hooks 29 are located the top of a plurality of fixed buckles 28, can further fix plank 2, can be accurate fix a position to puncture position, prepare for the puncture work, CT location's precision has been promoted, avoided because the location is inaccurate, and lead to puncture effect reduction, avoid the error in the puncture location.
The lateral wall of dwang 9 is equipped with spacing groove 10, and the inside fixedly connected with of spacing groove 10 is a plurality of fixed pipes 11, and a plurality of fixed pipes 11 correspond with sleeve pipe 17, and dwang 9 runs through plank 2, extends to the inboard and the outside of head support 18, and dwang 9 is connected with the inside wall rotation of head support 18.
The invention can explain its functional principle by the following modes of operation:
firstly, a person lies on the sliding plate 1, places the neck 21 on the cushion block 3 on the head support 18, because the cushion block 3 on the head support 18 is in a convex state on rubber, one end with the cushion block 3 is higher than the height of other positions on the head support 18, because the neck 21 is lifted by the cushion block 3, the head 20 at the moment is in a leaning state, then, the rotating handle 8 is rotated, the rotating rod 9 is fixedly connected with the rotating handle 8, the rotating rod 9 is fixedly connected with the wood board 2, the wood board 2 rotates along with the rotation of the rotating handle 8, thereby driving the first air bag 5 to rotate, the first air bag 5 can rotate to the most comfortable position of the patient, then, the pressing button 13 is pressed, at the moment, the fixing rod 14 is fixedly connected with the pressing button 13 to move towards the inside of the rotating rod 9, the rotating plate 15 is pressed, because the rotating plate 15 is fixedly connected with the rotating wheel which is rotationally connected with the supporting rod 22, the other end of the rotating plate 15 is fixedly connected with the sleeve 17, when the fixed rod 14 moves inwards, the sleeve 17 stretches out to the outer side of the rotating rod 9 through the small hole on the rotating rod 9 under the elastic action of the first spring rod 12 and the second spring rod 16, is sleeved on the fixed pipe 11 in the limiting groove 10 which is fixedly connected with the head support 18, then the fixed hook 29 on the pressing button 13 is buckled on the fixed buckle 28 which is fixedly connected with the outer side wall of the rotating rod 9, the position between the rotating rod 9 and the head support 18 is limited, the third air bag 19 is fixed, when the pressing button 13 is pressed down again, the fixed hook 29 can be removed from the fixed buckle 28 under the action of the first spring rod 12 and the second spring rod 16, the sleeve 17 is restored to the original position, returning to the inside of the rotating rod 9, the sleeve 17 is not sleeved on the fixed pipe 11, and at the moment, the rotating handle 8 can be rotated again to adjust the angle of the third air bag.
Then, according to the position to be adjusted, a proper amount of gas is injected into the third air bag 19, the height of the head 20 is adjusted, the accurate puncture position of the oval holes is found, the two first air bags 5 and the second air bags 6 are inflated, the head 20 is fixed left and right, the upper part of the head is positioned and protected, the left and right shaking of the head 20 of a patient is avoided, the offset of the puncture position of the oval holes is avoided, in the process, due to the fact that the accurate alignment of the puncture position is needed, the left and right positions of the head 20 are needed to be adjusted, at the moment, the slider 24 fixedly connected with the head support 18 is driven to slide on the round block 23 fixedly connected with the top of the sliding plate 1, so that the left and right angles of the head support 20 are adjusted, the pull rope 25 fixedly connected with the head support 18 and the hook 26 fixedly connected with the vertical rod on the sliding plate 1 are adjusted and fixed through adjusting the position relation between the pull rope 25 and the hook 26.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (3)
1. The utility model provides an oval hole CT location auxiliary head frame, includes sliding plate (1), head support (18) and human head (20) and neck (21), its characterized in that, the outside cover of head support (18) has rubber, the front end fixedly connected with cushion (3) of head support (18), head support (18) bottom fixedly connected with slider (24), the top fixedly connected with round block (23) of sliding plate (1), the inside rotation of head support (18) is connected with plank (2), fixedly connected with two baffles (4) on plank (2), head (20) are placed on head support (18) inside third gasbag (19), neck (21) are placed on cushion (3), slider (24) slide on round block (23)'s lateral wall, be connected with adjustment mechanism on head support (18), adjustment mechanism is including two stay cords (25) of fixedly connected with in head support (18) bottom, fixedly connected with two on sliding plate (1) have two baffles (4), two montants (26) are located on two montants (26) and two montants (25) are located on the rotation of the side of the montant (2);
the limiting mechanism comprises a third air bag (19) fixedly connected with the top of the wood board (2), the third air bag (19) is positioned in a head support (18), the side faces of the two baffle plates (4) are fixedly connected with first air bags (5), connecting holes are formed in the two first air bags (5), an air duct (7) is fixedly connected to the connecting holes, a second air bag (6) is fixedly connected to the upper rubber of the head support (18), and the two first air bags (5) are in through connection with the second air bag (6) through the air duct (7);
the rotating mechanism comprises a rotating rod (9) fixedly connected with the inside of a wood board (2), one end of the rotating rod (9) is fixedly connected with a rotating handle (8), the inner side wall of the rotating rod (9) is fixedly connected with a supporting rod (22), a rotating wheel is rotatably connected to the supporting rod (22), a rotating plate (15) is fixedly connected to the rotating wheel, a first spring rod (12) and a second spring rod (16) are fixedly connected to the inner side wall of the rotating rod (9), the other end of the first spring rod (12) is fixedly connected with the bottom of one end of the rotating plate (15), the top end of the rotating plate (15) is fixedly connected with a sleeve (17), the sleeve (17) is in a hollow state, the second spring rod (16) is fixedly connected with the bottom of the other end of the rotating plate (15), the top of the rotating plate (15) is fixedly connected with a fixed rod (14), the other end of the fixed rod (14) is fixedly connected with a pressing button (13), the pressing button (13) is fixedly connected with the bottom of one end of the rotating plate (16), two sliding grooves (27) are formed in the sliding grooves (27) and are connected with the sliding grooves (9), a plurality of fixing buckles (28) are fixedly connected to the positions, corresponding to the pressing buttons (13), of the rotating rod (9), two fixing hooks (29) correspond to the fixing buckles (28), and the two fixing hooks (29) are located above the fixing buckles (28).
2. The auxiliary head frame for locating the oval hole CT according to claim 1, wherein a limiting groove (10) is formed in the outer side wall of the rotating rod (9), a plurality of fixing pipes (11) are fixedly connected to the inside of the limiting groove (10), and the fixing pipes (11) correspond to the sleeve (17).
3. An auxiliary head frame for locating a circular oval hole CT according to claim 1, wherein the rotating rod (9) penetrates through the wood board (2) and extends to the inner side and the outer side of the head support (18), and the rotating rod (9) is rotatably connected with the inner side wall of the head support (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110229452.7A CN113017676B (en) | 2021-03-02 | 2021-03-02 | Supplementary headstock of oval hole CT location |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110229452.7A CN113017676B (en) | 2021-03-02 | 2021-03-02 | Supplementary headstock of oval hole CT location |
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| Publication Number | Publication Date |
|---|---|
| CN113017676A CN113017676A (en) | 2021-06-25 |
| CN113017676B true CN113017676B (en) | 2023-09-12 |
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| CN202110229452.7A Active CN113017676B (en) | 2021-03-02 | 2021-03-02 | Supplementary headstock of oval hole CT location |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114767180B (en) * | 2022-04-11 | 2023-05-12 | 四川大学华西医院 | Atrial septal defect plugging device |
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