CN220212993U - Depth limiting device - Google Patents
Depth limiting device Download PDFInfo
- Publication number
- CN220212993U CN220212993U CN202321569451.8U CN202321569451U CN220212993U CN 220212993 U CN220212993 U CN 220212993U CN 202321569451 U CN202321569451 U CN 202321569451U CN 220212993 U CN220212993 U CN 220212993U
- Authority
- CN
- China
- Prior art keywords
- depth limiting
- tube
- handle
- cover plate
- depth
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000009471 action Effects 0.000 claims abstract description 15
- 239000007943 implant Substances 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000001356 surgical procedure Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000005499 meniscus Effects 0.000 description 10
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 206010072970 Meniscus injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Abstract
The utility model provides a depth limiting device which comprises a depth limiting pipe, a limiting button and a cover plate, wherein the limiting button comprises a handle and two bosses, the bosses are arranged on the handle, and the handle is fixedly connected with the depth limiting pipe; the cover plate is provided with racks corresponding to the bosses, the bosses are clamped in grooves of the racks and used for locking the handle and the cover plate, and part of the depth limiting pipe is accommodated in the cover plate; the handle is used for deforming under the action of external force so that the boss is separated from the groove of the rack, and the handle drives the depth limiting pipe to axially move along the shaft of the depth limiting pipe under the action of the external force so as to adjust the length of the depth limiting pipe accommodated in the cover plate; the depth limiting tube is used for accommodating the suture. The depth limiting device can realize the adjustable length of the depth limiting tube, reduce the complicated degree of operation, can accommodate sutures, omit a wire harness tube and reduce the production cost.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to a depth limiting device.
Background
The meniscus suture device is mainly used in the human meniscus injury operation treatment process, wherein a depth limiting tube is an important part in the meniscus suture device, and the depth limiting tube is used for limiting the depth of the inserter inserted into the meniscus according to the actual use condition of the meniscus suture device. The current products on the market all utilize the utensil to measure the inserters and need insert the approximate degree of depth of meniscus afterwards, reverse tailors the depth limiting pipe, makes the length of depth limiting pipe accord with the requirement, but such actual operation action is loaded down with trivial details and has two obvious drawbacks, first: before using the meniscus suture instrument, the depth of the inserter needed to insert the meniscus needs to be measured; second,: after the depth measurement, the depth limiting pipe needs to be correspondingly cut in length in reverse.
In addition, when the implant is released, the meniscus stitching instrument on the market at present brings out the stitching thread, the operation of doctors can be influenced by the messy stitching thread, in order to not bring the redundant stitching thread out of the depth limiting tube, a layer of tube, namely the thread binding tube, can be sleeved in the depth limiting tube, the stitching thread is specially restrained, the implant which is easily released is not brought out of the depth limiting tube, the operation of doctors is further influenced, but the types and the quantity of materials can be increased by redundant thread binding tube parts, and the production cost is increased.
Therefore, it is necessary to provide a novel depth limiting device to solve the above-mentioned problems in the prior art.
Disclosure of Invention
The utility model aims to provide a depth limiting device which can realize the adjustable length of a depth limiting tube, reduce the complicated degree of operation, can accommodate sutures, omit a wire binding tube and reduce the production cost.
In order to achieve the purpose, the depth limiting device comprises a depth limiting pipe, a limiting button and a cover plate, wherein the limiting button comprises a handle and two bosses, the bosses are arranged on the handle, and the handle is fixedly connected with the depth limiting pipe; a rack is arranged on the cover plate corresponding to the boss, the boss is clamped in a groove of the rack and used for locking the handle and the cover plate, and part of the depth limiting pipe is accommodated in the cover plate; the handle is used for deforming under the action of external force so that the boss is separated from the groove of the rack, and the handle drives the depth limiting pipe to axially move along the shaft of the depth limiting pipe under the action of external force so as to adjust the length of the depth limiting pipe accommodated in the cover plate; the depth limiting tube is used for accommodating a suture.
The depth limiting device has the beneficial effects that:
the handle is fixedly connected with the depth limiting pipe, a rack is arranged on the cover plate corresponding to the boss, and the boss is clamped in a groove of the rack and used for locking the handle and the cover plate, so that the depth limiting pipe can be prevented from easily sliding under the action of external force; the handle is used for deforming under the action of external force so that the boss is separated from the groove of the rack, the handle drives the depth limiting pipe to axially move along the axis of the depth limiting pipe under the action of external force so as to adjust the length of the depth limiting pipe accommodated in the cover plate, the boss is separated from the groove of the rack by pressing the handle to change the connection between the boss and the rack, and meanwhile, the force along the axis of the depth limiting pipe is applied to the handle so that the boss moves along the rack, the handle drives the depth limiting pipe to synchronously move along the rack, the length of the depth limiting pipe accommodated in the cover plate is adjusted, the length adjustable function of the depth limiting pipe is guaranteed, the length of the depth limiting pipe extending out of the cover plate is conveniently adjusted according to the depth of a meniscus in the actual requirement in the operation process, and the complicated degree of the operation is reduced; the depth limiting tube is used for accommodating the suture, so that the suture is prevented from being carried out of the depth limiting tube due to release of an implant in actual operation, thereby affecting operation of a doctor, meanwhile, a wire harness tube can be omitted, the types and the quantity of materials used by the depth limiting device are reduced, and the production cost is reduced.
Optionally, the handle includes two handles that set up relatively, two be provided with respectively on the handle the boss, two form the space between the handle, when exerting the perpendicular to the handle the force of the axle of limit dark pipe reduces the space, the boss breaks away from the recess of rack, simultaneously to the handle is exerted along the force of the axle of limit dark pipe, the handle drives the boss is followed the rack motion.
Optionally, the limit button further includes a fixing portion, the fixing portion is connected with the depth limiting tube, and the handle is connected with one side of the fixing portion away from the depth limiting tube.
Optionally, the depth limiting device further comprises a hollow needle, one end of the hollow needle is fixedly connected with the cover plate, the other end of the hollow needle sequentially penetrates through the fixing portion and the depth limiting tube, and the hollow needle is used for accommodating an implant used in an operation.
Optionally, the fixing portion includes a through hole, the hollow needle penetrates out of the fixing portion from the through hole, and the hollow needle and the fixing portion can slide relatively.
Optionally, a protrusion is provided on the cover plate, and the hollow needle is connected with the protrusion.
Optionally, the depth limiting tube comprises a first tube and a second tube, the second tube is accommodated in the first tube, the inner wall of the second tube and the inner wall of the first tube form a stepped structure, a gap is formed between the inner wall of the second tube and the outer wall of the hollow needle, and the gap accommodates the suture.
Optionally, the hollow needle comprises a third tube and a fourth tube, a portion of the fourth tube being received within the third tube, the gap being formed between an inner wall of the second tube and an outer wall of the third tube.
Optionally, a connecting part is arranged on one side of the fixing part, which is close to the depth limiting pipe, and the connecting part is accommodated in the depth limiting pipe and is connected with the depth limiting pipe and the fixing part.
Optionally, a groove is formed in the cover plate adjacent to the rack, and a part of the handle is located in the groove so that the handle is not limited to move under external force.
Drawings
FIG. 1 is an exploded view of a cover plate and a depth limiting device according to an embodiment of the present utility model;
FIG. 2 is an overall view of a depth limiting device according to an embodiment of the present utility model;
FIG. 3 is an enlarged view of FIG. 2 at A;
FIG. 4 is an assembly view of a cover plate and a depth limiting device according to an embodiment of the present utility model;
FIG. 5 is a circumferential cross-sectional view of a depth limiting tube according to an embodiment of the present utility model;
FIG. 6 is an overall view of a hollow needle according to an embodiment of the present utility model;
fig. 7 is an axial cross-sectional view at B in fig. 4.
Reference numerals
1. A hollow needle; 11. a headend; 12. tail end; 13. a third conduit; 14. a fourth conduit; 141. a notch;
2. a depth limiting pipe; 21. a first end; 22. a second end; 23. a first pipe; 24. a second pipe;
3. a limit button; 31. a fixing part; 311. a through hole; 312. a connection part; 32. a handle; 321. a handle;
33. a boss;
4. an upper cover; 41. a protrusion; 42. a rack; 43. a first groove;
5. a lower cover; 51. a second groove;
6. a first fixing rod;
7. a second fixing rod;
8. a suture;
9. a gap.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. Unless otherwise defined, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. As used herein, the word "comprising" and the like means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof without precluding other elements or items.
Aiming at the problems existing in the prior art, the embodiment of the utility model provides a depth limiting device which comprises a depth limiting pipe, a limiting button and a cover plate, wherein the limiting button comprises a handle and two bosses, the bosses are arranged on the handle, and the handle is fixedly connected with the depth limiting pipe; a rack is arranged on the cover plate corresponding to the boss, the boss is clamped in a groove of the rack and used for locking the handle and the cover plate, and part of the depth limiting pipe is accommodated in the cover plate; the handle is used for deforming under the action of external force so that the boss is separated from the groove of the rack, and the handle drives the depth limiting pipe to axially move along the shaft of the depth limiting pipe under the action of external force so as to adjust the length of the depth limiting pipe accommodated in the cover plate; the depth limiting tube is used for accommodating a suture.
The depth limiting device has the advantages that:
the handle is fixedly connected with the depth limiting pipe, a rack is arranged on the cover plate corresponding to the boss, and the boss is clamped in a groove of the rack and used for locking the handle and the cover plate, so that the depth limiting pipe can be prevented from easily sliding under the action of external force; the handle is used for deforming under the action of external force so that the boss is separated from the groove of the rack, the handle drives the depth limiting pipe to axially move along the axis of the depth limiting pipe under the action of external force so as to adjust the length of the depth limiting pipe accommodated in the cover plate, the boss is separated from the groove of the rack by pressing the handle to change the connection between the boss and the rack, and meanwhile, the force along the axis of the depth limiting pipe is applied to the handle so that the boss moves along the rack, the handle drives the depth limiting pipe to synchronously move along the rack, the length of the depth limiting pipe accommodated in the cover plate is adjusted, the length adjustable function of the depth limiting pipe is guaranteed, the length of the depth limiting pipe extending out of the cover plate is conveniently adjusted according to the depth of a meniscus in the actual requirement in the operation process, and the complicated degree of the operation is reduced; the depth limiting tube is used for accommodating the suture, so that the suture is prevented from being carried out of the depth limiting tube due to release of an implant in actual operation, thereby affecting operation of a doctor, meanwhile, a wire harness tube can be omitted, the types and the quantity of materials used by the depth limiting device are reduced, and the production cost is reduced.
In some embodiments, the limit button further comprises a fixing portion, the fixing portion is connected with the depth limiting tube, and the handle is connected with one side, away from the depth limiting tube, of the fixing portion.
In some embodiments, a connecting portion is disposed on a side of the fixing portion, which is close to the depth limiting pipe, and the connecting portion is accommodated in the depth limiting pipe and connects the depth limiting pipe and the fixing portion.
In some embodiments, the depth limiting device further comprises a hollow needle, one end of the hollow needle is fixedly connected with the cover plate, the other end of the hollow needle sequentially penetrates through the fixing portion and the depth limiting tube, and the hollow needle is used for accommodating an implant used in an operation.
In some embodiments, the fixing portion includes a through hole, the hollow needle penetrates out of the fixing portion from the through hole, and the hollow needle and the fixing portion can slide relatively.
In some embodiments, a protrusion is provided on the cover plate, and the hollow needle is connected to the protrusion so as to connect the hollow needle to the cover plate.
FIG. 1 is an exploded view of a cover plate and a depth limiting device according to an embodiment of the present utility model; fig. 2 is an overall view of a depth limiting device according to an embodiment of the present utility model.
Referring to fig. 1 and 2, the depth limiting device comprises a hollow needle 1, a depth limiting tube 2, a limiting button 3 and a cover plate, the cover plate comprises an upper cover 4 and a lower cover 5, the upper cover 4 and the lower cover 5 are oppositely arranged to form a cavity, the cavity is used for accommodating a part of the limiting button 3 and a part of the depth limiting tube 2, one side of the upper cover 4, which faces the lower cover 5, is provided with a bulge 41, the hollow needle 1 comprises a head end 11 and a tail end 12, the tail end 12 and the bulge 41 are in injection molding connection, the limiting button 3 comprises a fixing part 31, a handle 32 and a boss 33, the boss 33 is arranged on the handle 32, the handle 32 is connected with the fixing part 31, the fixing part 31 is provided with a through hole 311 and a connecting part 312, the hollow needle 1 penetrates through the fixing part 31 from the through hole 311 to the tail end 12 of the hollow needle 1, penetrates through the hollow needle 1 from the through hole 311 to the second end 12 of the hollow needle 1, and the hollow tube 2 penetrates through the second end 21 and the hollow tube 2, and the depth limiting tube 2 penetrates through the hollow needle 1 and the second end 2, and the depth limiting tube 2 is sequentially, and the depth limiting tube 21 penetrates through the hollow needle 1 and the hollow tube 2 and the second end 2, and the depth limiting tube 2 is connected with the first end 2 and the end 1 and the second end 2, and the limiting tube 2.
In some embodiments, the connection is a shaft boss.
In some embodiments, the handle includes two handles disposed opposite to each other, the two handles are respectively provided with the boss, a gap is formed between the two handles, when a force perpendicular to the axis of the depth limiting tube is applied to the handles to reduce the gap, the boss is separated from the groove of the rack, and a force along the axis of the depth limiting tube is applied to the handles, and the handles drive the boss to move along the rack.
Fig. 3 is an enlarged view at a in fig. 2.
Referring to fig. 1 and 3, the handle 32 includes two handles 321 that set up relatively, two handles 321 with fixed part 31 fixed connection, two handles 321 is last to be provided with respectively boss 33, the inside wall of upper cover 4 is close to protruding 41 department is provided with rack 42, boss 33 card is in rack 42's recess, and there is the space between two handles 321 that set up relatively, two handles 321 with fixed part 31 is close to one side of handle 321 has jointly formed half open structure, through exerting the perpendicular to handle 321 the force of limit deep pipe 2 reduces the space, makes boss 33 break away from rack 42's recess, simultaneously to handle 321 exerts the force along limit deep pipe 2's axis, makes boss 33 follow rack 42 back-and-forth movement, changes boss 33 is in rack 42's position, and then makes handle 32 drive along rack 42 synchronous motion limit deep pipe 2, does not exert to be perpendicular to handle 321 the force of the axle of limit deep pipe 2's axis reduces the clearance, and can adjust the length according to the required limit deep of operation depth of cut into the limit deep pipe 2's the actual length of adjusting the limit deep pipe.
In some embodiments, a groove is provided in the cover plate adjacent to the rack, and a portion of the handle is positioned in the groove such that the handle is not limited from moving under external force.
FIG. 4 is an assembly view of a cover plate and a depth limiting device according to an embodiment of the present utility model.
Referring to fig. 1, 3 and 4, a first groove 43 is formed on a side wall of the upper cover 4, a second groove 51 is formed on a side wall of the lower cover 5 corresponding to the first groove 43, the first groove 43 and the second groove 51 together form an opening, the opening is used for placing a part of the handle 321, and when a force along an axis of the depth limiting tube 2 is applied to the handle 321 to enable the boss 33 to move back and forth along the rack 42, the part of the handle 321 of the handle 32 is not limited to move back and forth in the opening.
In some embodiments, the depth limiting tube comprises a first tube and a second tube, the second tube is contained in the first tube, an inner wall of the second tube and an inner wall of the first tube form a stepped structure, a gap is formed between the inner wall of the second tube and an outer wall of the hollow needle, and the gap contains the suture.
In some embodiments, the connection portion is received in the first conduit to connect the depth limiting tube and the fixing portion.
In some embodiments, the hollow needle comprises a third tube and a fourth tube, a portion of the fourth tube being received within the third tube, the gap being formed between an inner wall of the second tube and an outer wall of the third tube.
FIG. 5 is a circumferential cross-sectional view of a depth limiting tube according to an embodiment of the present utility model.
Referring to fig. 5, the depth limiting pipe 2 includes a first pipe 23 and a second pipe 24, the length of the second pipe 24 is smaller than that of the first pipe 23, the second pipe 24 is accommodated in the first pipe 23, the inner wall of the second pipe 24 and the inner wall of the first pipe 23 form a stepped structure, and the depth limiting pipe 2 is a stepped hollow structure formed by compounding the first pipe 23 and the second pipe 24.
Fig. 6 is an overall view of a hollow needle according to an embodiment of the present utility model.
Referring to fig. 6, the hollow needle 1 includes a third tube 13 and a fourth tube 14, the length of the third tube 13 is smaller than the length of the fourth tube 14, a part of the fourth tube 14 is accommodated in the third tube 13, and the hollow needle 1 is a hollow structure formed by compounding the third tube 13 and the fourth tube 14; the end of the fourth pipe 14, which is far away from the protrusion 41, is provided with a notch 141, the implant used in the operation comprises a first fixing rod 6 and a second fixing rod 7, the first fixing rod 6 and the second fixing rod 7 are both positioned in the notch 141, the first fixing rod 6 and the second fixing rod 7 are connected together through a suture 8, and the first fixing rod 6 and the second fixing rod 7 can slide back and forth along the notch 141.
Fig. 7 is an axial cross-sectional view at B in fig. 4.
Referring to fig. 6 and 7, a gap 9 is formed between the inner wall of the second pipe 24 and the outer wall of the third pipe 13, the excess suture thread 8 is compressed in the gap 9, and after the first fixing rod 6 is released, the excess suture thread 8 is still restrained in the gap 9, so that the depth limiting pipe 2 has a wire binding effect on the suture thread 8.
While embodiments of the present utility model have been described in detail hereinabove, it will be apparent to those skilled in the art that various modifications and variations can be made to these embodiments. It is to be understood that such modifications and variations are within the scope and spirit of the present utility model as set forth in the following claims. Moreover, the utility model described herein is capable of other embodiments and of being practiced or of being carried out in various ways.
Claims (8)
1. A depth limiting device is characterized by comprising a depth limiting pipe, a limiting button and a cover plate,
the limiting button comprises a handle and two bosses, the bosses are arranged on the handle, and the handle is fixedly connected with the depth limiting pipe;
a rack is arranged on the cover plate corresponding to the boss, the boss is clamped in a groove of the rack and used for locking the handle and the cover plate, and part of the depth limiting pipe is accommodated in the cover plate;
the handle is used for deforming under the action of external force so that the boss is separated from the groove of the rack, and the handle drives the depth limiting pipe to axially move along the shaft of the depth limiting pipe under the action of external force so as to adjust the length of the depth limiting pipe accommodated in the cover plate;
the depth limiting tube is used for accommodating a suture.
2. The depth limiting device according to claim 1, wherein the handle comprises two handles arranged oppositely, the two handles are respectively provided with the boss, a gap is formed between the two handles, when the gap is reduced by applying force perpendicular to the axis of the depth limiting tube to the handles, the boss is separated from the groove of the rack, meanwhile, the force along the axis of the depth limiting tube is applied to the handles, and the handles drive the boss to move along the rack.
3. The depth limiting device of claim 1, wherein the limit button further comprises a fixed portion, the fixed portion is connected with the depth limiting tube, and the handle is connected with a side of the fixed portion away from the depth limiting tube.
4. The depth limiting device of claim 3, further comprising a hollow needle having one end fixedly connected to the cover plate, the other end of the hollow needle sequentially penetrating through the fixing portion and the depth limiting tube, the hollow needle for receiving an implant for use in surgery.
5. The depth limiting device of claim 4, wherein the depth limiting tube comprises a first tube and a second tube, the second tube being received within the first tube, an inner wall of the second tube forming a stepped configuration with an inner wall of the first tube, a gap being formed between the inner wall of the second tube and an outer wall of the hollow needle, the gap receiving the suture.
6. The depth limiting device of claim 5, wherein the hollow needle comprises a third tube and a fourth tube, a portion of the fourth tube being received within the third tube, the gap being formed between an inner wall of the second tube and an outer wall of the third tube.
7. A depth limiting device according to claim 3, wherein a connecting portion is provided on a side of the fixing portion adjacent to the depth limiting tube, the connecting portion being accommodated in the depth limiting tube to connect the depth limiting tube and the fixing portion.
8. The depth limiting device of claim 2, wherein the cover plate is provided with a recess adjacent the rack, and a portion of the handle is positioned within the recess such that movement of the handle is not limited under external forces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321569451.8U CN220212993U (en) | 2023-06-19 | 2023-06-19 | Depth limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321569451.8U CN220212993U (en) | 2023-06-19 | 2023-06-19 | Depth limiting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220212993U true CN220212993U (en) | 2023-12-22 |
Family
ID=89176147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321569451.8U Active CN220212993U (en) | 2023-06-19 | 2023-06-19 | Depth limiting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220212993U (en) |
-
2023
- 2023-06-19 CN CN202321569451.8U patent/CN220212993U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2010055B1 (en) | Lancing device with independent drive core | |
| US8979800B2 (en) | Insertion device for infusion sets | |
| CA1176532A (en) | Lancet injector | |
| JP2702374B2 (en) | Blood lancet device for blood collection | |
| EP2422832A2 (en) | Syringe for injecting surgical thread | |
| AU2016200461B2 (en) | Tissue repair kit | |
| US20110295153A1 (en) | Lancing device | |
| CN216021214U (en) | Meniscus stitching instrument | |
| US9713446B2 (en) | Ear clip for medical monitoring device | |
| CN220212993U (en) | Depth limiting device | |
| CN109512437A (en) | Exempt to unload cap handling pin type blood collecting pen | |
| US5207701A (en) | Surgical needle-suture combination, and apparatus and method for attaching the same | |
| CN109259772A (en) | A kind of lasting blood glucose monitoring system implanting device with probe protection function | |
| CN215424859U (en) | Simple hernia needle convenient to use | |
| CN215129324U (en) | Meniscus suturing device | |
| CA2194775A1 (en) | Track guided end effector assembly | |
| CN101721232A (en) | Medical appliance with thread adjusting device | |
| CN208709950U (en) | A kind of fixing glue implantation instrument | |
| CN204601361U (en) | Sacculus dilating catheter sacculus decompressor | |
| CN214965971U (en) | Marrow biopsy needle | |
| CN110916843A (en) | Beak-breaking injection device | |
| CN203662914U (en) | Medical needle assisting device | |
| CN117137554B (en) | Puncture device is sewed up to abdominal cavity fascial | |
| CN219110345U (en) | Drainage tube fixing device | |
| CN215739186U (en) | Knotting structure and knotter assembly with same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |