CN114533230A - Fiber ring plugging device and plugging method - Google Patents
Fiber ring plugging device and plugging method Download PDFInfo
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- CN114533230A CN114533230A CN202210265230.5A CN202210265230A CN114533230A CN 114533230 A CN114533230 A CN 114533230A CN 202210265230 A CN202210265230 A CN 202210265230A CN 114533230 A CN114533230 A CN 114533230A
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- 239000000835 fiber Substances 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000000670 limiting effect Effects 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 9
- 230000000452 restraining effect Effects 0.000 claims description 4
- 230000002829 reductive effect Effects 0.000 claims description 3
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 description 22
- 230000007547 defect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 206010050296 Intervertebral disc protrusion Diseases 0.000 description 5
- 208000003618 Intervertebral Disc Displacement Diseases 0.000 description 4
- 230000002980 postoperative effect Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 208000012287 Prolapse Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000036770 blood supply Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/562—Implants for placement in joint gaps without restricting joint motion, e.g. to reduce arthritic pain
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B2017/564—Methods for bone or joint treatment
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Rheumatology (AREA)
- Engineering & Computer Science (AREA)
- Pain & Pain Management (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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- General Health & Medical Sciences (AREA)
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- Prostheses (AREA)
Abstract
The invention discloses a fiber ring plugging device and a plugging method, which relate to the technical field of medical equipment and comprise a first plugging part, a second plugging part and a first guide rod, wherein the first guide rod can penetrate through the second plugging part and extend into the first plugging part, so that the first plugging part is changed from an initial state into a state to be stretched, the diameter of the section of the first plugging part in the state to be stretched is smaller than that of the section of the initial state, and the first plugging part is recovered to the initial state after the first guide rod is released; the second plugging part is also provided with a fixing part which is used for fixing the first guide rod when the second plugging part is in a state of waiting to extend; according to the invention, the shape of the first plugging part can be changed through the arrangement of the first guide rod, so that the first plugging part is changed into a conical state to be stretched, the sectional area of the state to be stretched is smaller, the first plugging part can enter the interior of the fiber ring from the opening of the fiber ring more easily, the operation is simpler, and the further damage to the fiber ring caused by the further expansion of the opening of the fiber ring can be avoided.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a fibrous ring plugging device and a plugging method.
Background
Lumbar intervertebral disc protrusion is one of the most common diseases in orthopedics clinics. The cause of the disease is that nucleus pulposus in the fibrous ring is extruded and pressed to nerve roots of a human body, and further discomfort of waist and leg parts of a patient is caused.
With the continuous development of medical technology, medical workers have developed a minimally invasive technique of an intervertebral foramen endoscope aiming at lumbar intervertebral disc protrusion. The technique is to cut part of the fibrous ring by placing a medical channel, take out the nucleus pulposus with the lumbar disc herniation, and relieve the symptoms of the patient.
However, the self-repair ability of the annulus fibrosus is very weak due to its limited blood supply. Studies have demonstrated that the risk of recurrence following a discectomy alone is related to the size of the annulus defect, with a greater range of annulus defects and a higher rate of recurrence following surgery. Carragee et al indicate that the width of a defect in the annulus fibrosus exceeded 6mm2When the patient suffers from intervertebral disc protrusion, the postoperative recurrence rate is 27.3 percent, while the postoperative recurrence rate of other types of patients suffering from intervertebral disc protrusion is only 4.8 percent; defect area of fibrous ring is greater than 54mm2Has a postoperative recurrence rate of 18% and a defect of less than 36mm2The reoperation rate of (a) is only 4.7%, and reoperation patients often have less improved clinical outcome and outcome than primary surgery.
The fiber ring patch is arranged in the utility model patent with the application number of 202020915234.X and the name of the fiber ring patch and the intervertebral disc fiber ring fixing device under the minimally invasive channel, two ends of the fiber ring patch can be fixed in the bone tissues of adjacent upper and lower centrums through a filler with a rod and a fixing screw, the fixing stability is strong, and a good plugging effect is achieved; but it utilizes the monolithic patch to block up, and the shutoff effect is relatively poor to need the fixed screw on bone tissue, the operation is comparatively loaded down with trivial details. Including the tubular support, connecting piece and the disk support that connect gradually among the utility model patent of application number "201820014726.4", the name is "a fibrous ring occluder", during the use, utilize conveyor to put into fibrous ring fracture department with fibrous ring occluder through wicresoft's nucleus pulposus excision passageway, fibrous ring occluder restores to predetermined shape, accomplishes the shutoff to patient's fibrous ring defect position, but it does not disclose concrete operation method, leads to the technical staff in the art to be difficult to know simple and convenient implantation mode according to its content of disclosing.
Therefore, the development of the fibrous ring plugging device which has a simple structure and is convenient for plugging the fibrous ring opening has important significance for preventing the prolapse and the recurrence of the intervertebral disc and reducing the pain of patients.
Disclosure of Invention
The invention aims to provide a fiber ring plugging device and a plugging method, which are used for solving the problems in the prior art, can change a first plugging part from an initial state into a conical state to be stretched, are more convenient to enter the interior of a fiber ring from an opening of the fiber ring, and are simpler and more convenient to operate.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a fiber ring plugging device, which comprises a first plugging part and a second plugging part which are connected at intervals, wherein the first plugging part and the second plugging part are respectively positioned at the inner side and the outer side of an opening of a fiber ring to plug the opening of the fiber ring; the second plugging portion is further provided with a fixing portion which is used for fixing the first guide rod when the second plugging portion is in a state of waiting to stretch into the second plugging portion.
Preferably, the fixing portion comprises a sleeve arranged on the outer wall of the second plugging portion, an internal thread is arranged on the inner wall of the sleeve, and the first guide rod is matched with the internal thread.
Preferably, the first blocking part and the second blocking part are both disc-shaped, and the connecting positions of the first blocking part and the second blocking part are respectively located at the centers of the disc-shaped shapes of the first blocking part and the second blocking part.
Preferably, the surface of the second plugging portion, which is attached to the annulus fibrosus, is a curved surface, and the degree of curvature of the curved surface is adapted to the curvature of the annulus fibrosus.
Preferably, the first blocking part is made of memory alloy and has a hollow structure.
Preferably, the annulus fibrosus occlusion device further includes an elastic support portion disposed on the side wall of the second occlusion portion, and a detachable limiting shell, in an initial state, the elastic support portion is compressed in the limiting shell, and after the limiting shell is detached, the elastic support portion is spread to support the vertebra adjacent to the annulus fibrosus.
Preferably, the elastic support part comprises a spiral support spring, and one end of the support spring is fixed on the sleeve; the end part of the sleeve is also provided with an external thread, and the limiting shell is arranged on the sleeve through the external thread.
Preferably, the restricting housing is further provided with a force applying portion for screwing the restricting housing to rotate.
Preferably, the force application part comprises a second guide rod, the second guide rod is of a hollow structure, the first guide rod penetrates through the second guide rod, and the end part of the first guide rod is exposed out of the second guide rod.
The invention also provides a fiber ring plugging method, which comprises the following steps,
1) the first guide rod sequentially passes through the second guide rod, the sleeve and the second plugging part, so that the first guide rod extends into the first plugging part and abuts against the inner wall of the first plugging part;
2) rotating the first guide rod to drive the end part of the first plugging part to extend along the axial direction of the first plugging part, so that the diameter of the section of the first plugging part is reduced to reach a state to be stretched, then the first plugging part enters the interior of the fiber ring from the opening of the fiber ring, and the first plugging part stops when the second plugging part is tightly attached to the outer wall surface of the fiber ring;
3) the first guide rod is rotated reversely, so that the first guide rod is withdrawn from the second plugging part and the second guide rod, and the first plugging part restores to be in a disc shape in the initial state and is tightly attached to the inner wall surface of the fiber ring;
4) the second guide rod is rotated to remove the limiting shell, the elastic supporting part is opened after being out of limitation, and the upper end and the lower end of the elastic supporting part are respectively abutted against two adjacent vertebrae of the fibrous ring.
Compared with the prior art, the invention has the following technical effects:
1. according to the invention, the shape of the first plugging part can be changed through the arrangement of the first guide rod, so that the first plugging part is changed into a conical state to be stretched, the sectional area of the state to be stretched is smaller, the first plugging part can enter the interior of a fiber ring from an opening of the fiber ring more easily, the operation is simpler, and the opening of the fiber ring can be prevented from being further expanded to further damage the fiber ring;
2. the fixing part arranged in the invention can keep the first plugging part to be in a state of being kept to be stretched, so that the shape of the first plugging part can be changed in advance, the first plugging part can be conveniently stretched into the fiber ring, and the condition of inconvenient operation in the operation is avoided;
3. the fixing part comprises a sleeve arranged on the outer wall of the second plugging part, the inner wall of the sleeve is provided with an internal thread, the first guide rod is matched with the internal thread, the first guide rod can be fixed by utilizing the internal thread, the sleeve can play a certain guiding role in the movement of the first guide rod, and the second plugging part can be prevented from being abraded;
4. the elastic supporting part is arranged in the invention, the elastic supporting part can provide reverse acting force when the vertebrae are in relative displacement, so that the buffer effect is achieved, the abrasion between the vertebrae is avoided, and barbs can be arranged on the outer edge of the elastic supporting part and act on the vertebrae, so that the stability between the elastic supporting part and the vertebrae can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic view of the overall structure of the annulus fibrosus occlusion device of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a schematic structural view of the coil spring when it is expanded;
FIG. 4 is a bottom view of FIG. 3;
wherein, 1, a first plugging part; 2. a second sealing part; 3. a first guide bar; 4. a sleeve; 5. a restraining housing; 6. a support spring; 7. a second guide bar.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a fiber ring plugging device and a plugging method, which are used for solving the problems in the prior art, can change a first plugging part from an initial state into a conical state to be stretched, are more convenient to enter the interior of a fiber ring from an opening of the fiber ring, and are simpler and more convenient to operate.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example 1:
as shown in fig. 1 to 4, the present embodiment provides a fiber ring plugging device, which includes a first plugging portion 1 and a second plugging portion 2 connected at an interval, where the first plugging portion 1 and the second plugging portion 2 are respectively located at inner and outer sides of an opening of a fiber ring to plug the opening, the fiber ring plugging device further includes a first guide rod 3, the first guide rod 3 can penetrate through the second plugging portion 2 and extend into the first plugging portion 1 to abut against an inner wall thereof, so that the first plugging portion 1 is changed from an initial state to a state to be stretched, and a cross-sectional diameter of the first plugging portion 1 in the state to be stretched is smaller than a cross-sectional diameter of the initial state; the second blocking portion 2 is further provided with a fixing portion for fixing the first guide rod 3 when the second blocking portion 2 is in a state of being extended.
When the fiber ring plugging device is used, the first guide rod 3 penetrates through the second plugging portion 2 and extends into the first plugging portion 1, the end portion of the first plugging portion 1 is abutted against the inner wall of the end portion of the first plugging portion 1, then the first guide rod 3 is pushed to drive the first plugging portion 1 to deform, the first plugging portion 1 is changed from an initial state to a conical state to be plugged under the action of the first guide rod 3, at the moment, the first guide rod 3 is fixed through the fixing portion, the state to be plugged is kept still, the first plugging portion 1 extends into the fiber ring from the opening of the fiber ring, the second plugging portion 2 stops extending after being tightly attached to the outer wall surface of the fiber ring, then the fixing effect of the fixing portion on the first guide rod 3 is released, the first guide rod 3 is withdrawn, the first plugging portion 1 is restored to the initial state and is tightly attached to the inner wall surface of the fiber ring, and plugging of the opening of the fiber ring is completed.
In the embodiment, the shape of the first blocking part 1 can be changed through the arrangement of the first guide rod 3, so that the first blocking part is changed into a conical state to be stretched, the sectional area of the state to be stretched is smaller, the first blocking part can enter the interior of a fiber ring from an opening of the fiber ring more easily, the operation is simpler, and the opening of the fiber ring can be prevented from being further expanded to further damage the fiber ring; in addition, the fixed part that sets up in this embodiment can make first shutoff portion 1 maintain and wait to stretch into the state motionless to can change first shutoff portion 1's form in advance, be more convenient for first shutoff portion 1 stretch into the fibre ring inside, avoid the inconvenient condition of operation to appear in the art.
Further, the fixed part includes sleeve 4 that sets up on second shutoff portion 2 outer wall in this embodiment, is provided with the internal thread on sleeve 4's the inner wall, and first guide arm 3 and internal thread fit utilize the internal thread can realize first guide arm 3's fixed to sleeve 4 can play certain guide effect to first guide arm 3's removal, can also avoid wearing and tearing second shutoff portion 2.
In this embodiment, the first blocking part 1 and the second blocking part 2 are both disc-shaped, the connection positions of the first blocking part 1 and the second blocking part 2 are respectively located at the centers of the disc-shaped shapes of the first blocking part and the second blocking part, the surface of the second blocking part 2, which is attached to the fiber ring, is a curved surface, the bending degree of the curved surface is adapted to the curvature of the fiber ring, and the close attachment degree of the second blocking part 2 to the outer wall surface of the fiber ring can be improved.
Further, in the present embodiment, the first blocking portion 1 is made of a memory alloy and has a hollow structure.
Further, in this embodiment, the apparatus further includes an elastic support portion disposed on the sidewall of the second blocking portion 2 and a detachable limiting shell 5, in an initial state, the elastic support portion is compressed in the limiting shell 5, and after the limiting shell 5 is removed, the elastic support portion is spread to support the vertebra adjacent to the annulus fibrosus; the elastic support part can provide reverse acting force when relative displacement occurs to the vertebra, further play a role in buffering, avoid abrasion between the vertebrae, and the barbs can be further arranged on the outer edge of the elastic support part, and the stability between the elastic support part and the vertebrae can be improved by applying the barbs to the vertebrae.
As shown in fig. 3 to 4, in the present embodiment, the elastic support portion includes a spiral support spring 6, and one end of the support spring 6 is fixed to the sleeve 4 (in the drawings, a partial structural schematic view of the support spring 6 is shown, and actually, the support spring 6 is fixed to the sleeve 4); the end of the sleeve 4 is also provided with an external thread, by means of which the limiting housing 5 is arranged on the sleeve 4.
In order to facilitate screwing the limiting shell 5, the limiting shell 5 in the embodiment is further provided with a force application part for screwing the limiting shell; the force application part comprises a second guide rod 7, the second guide rod 7 is of a hollow structure, the first guide rod 3 penetrates through the second guide rod 7, and the end part of the first guide rod is exposed out of the second guide rod 7.
Example 2:
this example provides a method for plugging a fiber ring, comprising the steps of,
1) the first guide rod 3 sequentially passes through the second guide rod 7, the sleeve 4 and the second plugging part 2, and extends into the first plugging part 1 and abuts against the inner wall of the first plugging part 1;
2) rotating the first guide rod 3 to drive the end part of the first plugging part 1 to extend along the axial direction of the first plugging part 1, so that the diameter of the section of the first plugging part 1 is reduced to reach a state to be stretched, then the first plugging part 1 enters the interior of the fiber ring from the opening of the fiber ring, and the first plugging part 2 stops when clinging to the outer wall surface of the fiber ring;
3) the first guide rod 3 is rotated reversely, so that the first guide rod 3 is withdrawn from the second plugging part 2 and the second guide rod 9, and the first plugging part 1 restores to be in a disc shape in an initial state and is tightly attached to the inner wall surface of the fibrous ring;
4) the second guide rod 7 is rotated to remove the limiting shell 5, the elastic supporting part is opened after being out of limitation, and the upper end and the lower end of the elastic supporting part are respectively abutted against two adjacent vertebrae of the fibrous ring.
The adaptation according to the actual needs is within the scope of the invention.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. A fiber ring plugging device is characterized by comprising a first plugging portion and a second plugging portion which are connected at intervals, wherein the first plugging portion and the second plugging portion are respectively positioned at the inner side and the outer side of an opening of a fiber ring to plug the opening of the fiber ring; the second plugging portion is further provided with a fixing portion which is used for fixing the first guide rod when the second plugging portion is in a state of waiting to stretch into the second plugging portion.
2. The annulus fibrosus occlusion device of claim 1, wherein the anchor portion comprises a sleeve disposed on an outer wall of the second occlusion portion, an internal thread disposed on an inner wall of the sleeve, and the first guide rod is engaged with the internal thread.
3. The annular sealing device according to claim 2, wherein the first sealing portion and the second sealing portion are both disc-shaped, and the connecting position of the first sealing portion and the second sealing portion is located at the center of the disc-shaped shape of the first sealing portion and the second sealing portion.
4. The device according to claim 3, wherein the surface of the second sealing portion that is attached to the annulus is curved, and the curvature of the curved surface is adapted to the curvature of the annulus.
5. The annulus fibrosus occlusion device of claim 1, wherein the first occlusion portion is formed of a memory alloy and has a hollow structure.
6. The annulus fibrosus occlusion device of any one of claims 2-5, further comprising a resilient support disposed on a sidewall of the second occlusion portion, and a removably disposed restraining housing, wherein in an initial state the resilient support is compressed within the restraining housing, and wherein upon removal of the restraining housing the resilient support expands for supporting a vertebra adjacent the annulus fibrosus.
7. The annulus occlusion device of claim 6, wherein the resilient support comprises a helical support spring having one end secured to the cannula; the end part of the sleeve is also provided with an external thread, and the limiting shell is arranged on the sleeve through the external thread.
8. The apparatus according to claim 7, wherein the limiting shell is further provided with a force applying part for screwing the limiting shell to rotate.
9. The device of claim 8, wherein the force application portion comprises a second guide rod, the second guide rod is a hollow structure, the first guide rod is inserted into the second guide rod, and the end portion of the first guide rod is exposed from the second guide rod.
10. A fiber ring plugging method is characterized by comprising the following steps,
1) the first guide rod sequentially passes through the second guide rod, the sleeve and the second plugging part, so that the first guide rod extends into the first plugging part and abuts against the inner wall of the first plugging part;
2) rotating the first guide rod to drive the end part of the first plugging part to extend along the axial direction of the first plugging part, so that the diameter of the section of the first plugging part is reduced to reach a state to be stretched, then the first plugging part enters the interior of the fiber ring from the opening of the fiber ring, and the first plugging part stops when the second plugging part is tightly attached to the outer wall surface of the fiber ring;
3) the first guide rod is rotated reversely, so that the first guide rod is withdrawn from the second plugging part and the second guide rod, and the first plugging part restores to be in a disc shape in the initial state and is tightly attached to the inner wall surface of the fiber ring;
4) the second guide rod is rotated to remove the limiting shell, the elastic supporting part is opened after being out of limitation, and the upper end and the lower end of the elastic supporting part are respectively abutted against two adjacent vertebrae of the fibrous ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210265230.5A CN114533230B (en) | 2022-03-17 | 2022-03-17 | Fibrous ring plugging device and plugging method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210265230.5A CN114533230B (en) | 2022-03-17 | 2022-03-17 | Fibrous ring plugging device and plugging method |
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| CN114533230B CN114533230B (en) | 2024-04-02 |
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| CN115399855A (en) * | 2022-09-15 | 2022-11-29 | 上海交通大学 | Fibrous ring plugging and repairing device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN114533230B (en) | 2024-04-02 |
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