CN215960226U - Patella fracture reduction fixator - Google Patents
Patella fracture reduction fixator Download PDFInfo
- Publication number
- CN215960226U CN215960226U CN202121794821.9U CN202121794821U CN215960226U CN 215960226 U CN215960226 U CN 215960226U CN 202121794821 U CN202121794821 U CN 202121794821U CN 215960226 U CN215960226 U CN 215960226U
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- connecting piece
- mounting hole
- connector
- air bag
- pressurizing mechanism
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- 230000009467 reduction Effects 0.000 title claims abstract description 32
- 206010034122 Patella fracture Diseases 0.000 title abstract description 25
- 230000007246 mechanism Effects 0.000 claims abstract description 71
- 210000000629 knee joint Anatomy 0.000 claims abstract description 32
- 230000001681 protective effect Effects 0.000 claims description 9
- 210000003127 knee Anatomy 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 206010017076 Fracture Diseases 0.000 abstract description 25
- 230000000694 effects Effects 0.000 abstract description 8
- 230000006872 improvement Effects 0.000 abstract description 6
- 230000000373 effect on fracture Effects 0.000 abstract 1
- 239000012634 fragment Substances 0.000 abstract 1
- 210000002414 leg Anatomy 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000035876 healing Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000004417 patella Anatomy 0.000 description 2
- 239000011505 plaster Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a patellar fracture reduction fixator which comprises a knee joint back dragging support, a first pressurizing mechanism and a second pressurizing mechanism, wherein the first pressurizing mechanism is connected with the second pressurizing mechanism through a first connecting mechanism, the knee joint back dragging support is respectively connected with the first pressurizing mechanism and the second pressurizing mechanism through a second connecting mechanism, the first pressurizing mechanism comprises a first air bag, a first air nozzle and a first inflator pump, the second pressurizing mechanism comprises a second air bag, a second air nozzle and a second inflator pump, the first air nozzle and the second air nozzle are respectively communicated and arranged on the first air bag and the second air bag, the first inflator pump and the second inflator pump are respectively connected with nozzle openings of the first air nozzle and the second air nozzle, the first air bag is respectively provided with a first mounting hole and a second mounting hole, and the left end and the right end of the second air bag are respectively provided with a third mounting hole and a fourth mounting hole. The patella fracture reduction fixator provided by the utility model not only has a fixing effect, but also has a continuous improvement effect on fracture fragment positions.
Description
Technical Field
The utility model belongs to the technical field of medical instruments, and particularly relates to a patella fracture reduction fixator.
Background
The patella fracture is a common and frequent fracture, which accounts for about 1.7 percent of the total fracture, the existing operation of the patella fracture mainly adopts titanium cable and titanium needle fixation as main components, the cost is relatively high, the operation is required to be cut open for reduction, the secondary taking of internal articles has great harm to patients, the traditional Chinese medicine utilizes polymer plaster or a brace for fixation, but the existing polymer plaster or the brace only has the fixing effect and does not have the continuous improvement and function reduction effect on the fracture section position.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a patellar fracture reduction fixator.
In order to achieve the purpose, the utility model adopts the technical scheme that:
a patellar fracture reduction fixator comprises a knee joint posterior distraction brace, a first pressurizing mechanism and a second pressurizing mechanism, wherein the first pressurizing mechanism is connected with the second pressurizing mechanism through a first connecting mechanism, and the knee joint posterior distraction brace is respectively connected with the first pressurizing mechanism and the second pressurizing mechanism through the second connecting mechanism.
Preferably, first loading system contains first gasbag, first air cock and first inflator pump, and second loading system contains the second gasbag, second air cock and second inflator pump, and first gasbag and second gasbag are half crescent type structure, and first air cock and second air cock communicate respectively and set up on first gasbag and second gasbag, and first inflator pump and second inflator pump are connected with the mouth of first air cock and second air cock respectively, and first mounting hole and second mounting hole have been seted up respectively at both ends about the first gasbag, and third mounting hole and fourth mounting hole have been seted up respectively at both ends about the second gasbag.
Preferably, the first air bag and the second air bag are both made of rubber.
Preferably, the first connecting mechanism comprises a first connecting piece, a second connecting piece, a third connecting piece and a fourth connecting piece, the first connecting piece and the second connecting piece are respectively arranged in the first mounting hole and the second mounting hole, the third connecting piece and the fourth connecting piece are respectively arranged in the third mounting hole and the fourth mounting hole, and the first connecting piece and the third connecting piece are respectively connected with the second connecting piece and the fourth connecting piece.
Preferably, the knee joint rear dragging support is respectively and symmetrically provided with a fifth mounting hole, a sixth mounting hole, a seventh mounting hole and an eighth mounting hole, the second connecting mechanism comprises a fifth connecting piece, a sixth connecting piece, a seventh connecting piece, an eighth connecting piece, a ninth connecting piece, a tenth connecting piece, an eleventh connecting piece and a twelfth connecting piece, the fifth connecting piece, the sixth connecting piece, the seventh connecting piece and the eighth connecting piece are respectively arranged in the first mounting hole, in the second mounting hole, the third mounting hole and the fourth mounting hole, a ninth connecting piece, a tenth connecting piece, an eleventh connecting piece and a twelfth connecting piece are respectively arranged in the fifth mounting hole, the sixth mounting hole, the seventh mounting hole and the eighth mounting hole, and the ninth connecting piece, the tenth connecting piece, the eleventh connecting piece and the twelfth connecting piece are respectively connected with the fifth connecting piece, the sixth connecting piece, the seventh connecting piece and the eighth connecting piece.
Preferably, the first connecting piece, the second connecting piece, the third connecting piece, the fourth connecting piece, the fifth connecting piece, the sixth connecting piece, the seventh connecting piece, the eighth connecting piece, the ninth connecting piece, the tenth connecting piece, the eleventh connecting piece and the twelfth connecting piece are binding bands or binding ropes.
Preferably, the knee joint posterior traction brace is of a semi-annular structure.
Preferably, a protective pad is arranged on the inner side surface of the knee joint posterior traction brace.
Preferably, the protective pad is made of silica gel, and the knee joint back dragging brace is made of plastic.
Compared with the prior art, the utility model has the beneficial effects that:
(1) the patellar fracture reduction fixator provided by the utility model has the advantages that through the design of the first pressurizing mechanism and the second pressurizing mechanism, the first air bag in the first pressurizing mechanism and the second air bag in the second pressurizing mechanism can be respectively arranged at the upper part and the lower part of the patellar fracture part, and are respectively connected with the second connecting piece and the fourth connecting piece through the first connecting piece and the third connecting piece, so that the first pressurizing mechanism and the second pressurizing mechanism can fix the patellar fracture part, and the first air bag and the second air bag are respectively inflated and pressurized through the first inflator pump and the second inflator pump to provide external gathering pressure for the patellar fracture part, and the patellar fracture part with poor position after fixation can be improved or anatomical reduction can be realized according to the concept of 'active reduction and functional healing' of an integral bone by a Mongolian doctor;
(2) the knee joint back-dragging brace is arranged on the back side of a knee joint and is connected with the first pressurizing mechanism and the second pressurizing mechanism, so that traction force can be provided for the first pressurizing mechanism and the second pressurizing mechanism, the first pressurizing mechanism and the second pressurizing mechanism are further prevented from shifting, and a better fixing effect is realized;
(3) according to the utility model, through the design of the first connecting piece, the second connecting piece, the third connecting piece and the fourth connecting piece, the first pressurizing mechanism and the second pressurizing mechanism can be gathered together to fix the patella fracture part, and the gradual reduction of the patella fracture part can be realized by further tensioning the distance between the first connecting piece and the third connecting piece as well as the distance between the second connecting piece and the fourth connecting piece according to the reduction degree of the patella fracture part until the anatomical reduction is achieved;
(4) according to the utility model, the fixing requirements of patients with different leg thicknesses can be met by adjusting the distances among the fifth connecting piece, the sixth connecting piece, the seventh connecting piece, the eighth connecting piece, the ninth connecting piece, the tenth connecting piece, the eleventh connecting piece and the twelfth connecting piece, and the applicability of the device is improved.
Drawings
Fig. 1 is a schematic structural view of a patellar fracture reduction fixator provided in embodiment 1 of the present invention;
fig. 2 is a schematic structural view of a first pressing mechanism in embodiment 1 of the present invention;
fig. 3 is a schematic structural view of a posterior knee joint brace in embodiment 1 of the present invention;
in the figure: 1. a knee posterior distraction brace; 101. a fifth mounting hole; 102. a sixth mounting hole; 103. a seventh mounting hole; 104. an eighth mounting hole; 2. a first pressurizing mechanism; 201. a first air bag; 202. a first air tap; 203. a first inflator; 204. a first mounting hole; 205. a second mounting hole; 3. a second pressurizing mechanism; 301. a second air bag; 302. a second air tap; 303. a second inflator; 304. a third mounting hole; 305. a fourth mounting hole; 4. a first connecting mechanism; 401. a first connecting member; 402. a second connecting member; 403. a third connecting member; 404. a fourth connecting member; 5. a second connecting mechanism; 501. a fifth connecting member; 502. a sixth connecting member; 503. a seventh connecting member; 504. an eighth connecting member; 505. a ninth connecting member; 506. a tenth connecting member; 507. an eleventh link; 508. a twelfth connecting member; 6. a protective pad.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Example 1
As shown in fig. 1 to 3, the patellar fracture reduction fixator according to the embodiment of the present invention includes a knee posterior distraction brace 1, a first pressurizing mechanism 2 and a second pressurizing mechanism 3, wherein the first pressurizing mechanism 2 is connected to the second pressurizing mechanism 3 through a first connecting mechanism 4, and the knee posterior distraction brace 1 is connected to the first pressurizing mechanism 2 and the second pressurizing mechanism 3 through a second connecting mechanism 5. The patella fracture reduction fixator provided by the embodiment of the utility model is novel in structural design, simple and practical, the knee joint back-dragging support 1 provides a supporting force for the knee joint, the first pressurizing mechanism 2 and the second pressurizing mechanism 3 are further fixed, the first pressurizing mechanism 2 and the second pressurizing mechanism 3 are prevented from shifting in the fixing process to influence the effect of fixation improvement, the first pressurizing mechanism 2 and the second pressurizing mechanism 3 are respectively arranged on the upper side and the lower side of the patella fracture part to fix the patella fracture part, and the fracture improvement and compounding of the patella are promoted until the anatomical reduction and the functional reduction are achieved.
The first air bag 201 and the second air bag 301 are made of rubber. The design has certain flexibility, can improve the comfort of patients, and cannot damage the skin.
The first connecting mechanism 4 includes a first connecting member 401, a second connecting member 402, a third connecting member 403 and a fourth connecting member 404, the first connecting member 401 and the second connecting member 402 are respectively disposed in the first mounting hole 204 and the second mounting hole 205, the third connecting member 403 and the fourth connecting member 404 are respectively disposed in the third mounting hole 304 and the fourth mounting hole 305, and the first connecting member 401 and the third connecting member 403 are respectively connected to the second connecting member 402 and the fourth connecting member 404. When the annular fixing device is used, the first air bag 201 and the second air bag 301 are respectively placed at the upper position and the lower position of the patella fracture part and are attached to the patella fracture part, then the first connecting piece 401 and the third connecting piece 403 are respectively connected with the second connecting piece 402 and the fourth connecting piece 404 according to the distance between the first air bag 201 and the second air bag 301, so that the first air bag 201 and the second air bag 301 are in a tight state, and the patella fracture part is annularly fixed.
The knee joint rear drag brace 1 is symmetrically provided with a fifth mounting hole 101, a sixth mounting hole 102, a seventh mounting hole 103 and an eighth mounting hole 104, the second connecting mechanism 5 comprises a fifth connecting piece 501, a sixth connecting piece 502, a seventh connecting piece 503, an eighth connecting piece 504, a ninth connecting piece 505, a tenth connecting piece 506, an eleventh connecting piece 507 and a twelfth connecting piece 508, the fifth connecting piece 501, the sixth connecting piece 502, the seventh connecting piece 503 and the eighth connecting piece 504 are respectively arranged in the first mounting hole 204, the second mounting hole 205, the third mounting hole 304 and the fourth mounting hole 305, the ninth connecting piece 505, the tenth connecting piece 506, the eleventh connecting piece 507 and the twelfth connecting piece 508 are respectively arranged in the fifth mounting hole 101, the sixth mounting hole 102, the seventh mounting hole 103 and the eighth mounting hole 104, the ninth connecting piece 505, the tenth connecting piece 506, the eleventh connecting piece 507 and the twelfth connecting piece 508 are respectively connected with the fifth connecting piece 501, the sixth mounting hole 102, the seventh mounting hole 103 and the eighth mounting hole 104, The sixth connecting member 502, the seventh connecting member 503 and the eighth connecting member 504 are connected. After the first air bag 201 and the second air bag 301 are fixed to each other, the knee joint back-dragging brace 1 is placed on the rear side of the knee joint, the ninth connecting piece 505, the tenth connecting piece 506, the eleventh connecting piece 507 and the twelfth connecting piece 508 are respectively connected with the fifth connecting piece 501, the sixth connecting piece 502, the seventh connecting piece 503 and the eighth connecting piece 504 according to the thickness degree of legs of a patient, so that the knee joint back-dragging brace 1 is connected with the first air bag 201 and the second air bag 301 above, the first air bag 201 and the second air bag 301 are fixed, the first air bag 201 and the second air bag 301 are prevented from displacing, and a supporting force is provided for the knee joint.
The first connector 401, the second connector 402, the third connector 403, the fourth connector 404, the fifth connector 501, the sixth connector 502, the seventh connector 503, the eighth connector 504, the ninth connector 505, the tenth connector 506, the eleventh connector 507, and the twelfth connector 508 are all straps.
The knee joint posterior traction brace 1 is of a semi-annular structure. Such design can realize with the better laminating of knee joint to realize better fixed effect.
The inner side surface of the knee joint back-dragging brace 1 is provided with a protective pad 6, the protective pad 6 is made of silica gel, and the knee joint back-dragging brace 1 is made of plastic. The design of the protective pad 6 can improve the fixed comfort of the patient, and the material of the brace 1 for dragging behind the knee joint is plastic, so that the protective pad not only has light weight and does not influence the movement of the patient, but also has the advantage of difficult deformation.
Example 2
The present embodiment is the same as the structure provided in embodiment 1, except that the first connecting member 401, the second connecting member 402, the third connecting member 403, the fourth connecting member 404, the fifth connecting member 501, the sixth connecting member 502, the seventh connecting member 503, the eighth connecting member 504, the ninth connecting member 505, the tenth connecting member 506, the eleventh connecting member 507, and the twelfth connecting member 508 in the present embodiment are all binding ropes.
When the patella fracture reduction fixator provided by the embodiment of the utility model is used, the first air bag 201 and the second air bag 301 are respectively placed at the upper position and the lower position of the patella fracture and are jointed with the patella fracture, then the first connecting piece 401 and the third connecting piece 403 are respectively connected with the second connecting piece 402 and the fourth connecting piece 404 according to the distance between the first air bag 201 and the second air bag 301, so that the first air bag 201 and the second air bag 301 are in a tight state, the patella fracture is annularly fixed, then the knee joint posterior traction brace 1 is placed at the rear side of the knee joint, and according to the thickness degree of legs of a patient, the ninth connecting piece 505, the tenth connecting piece 506, the eleventh connecting piece 507 and the twelfth connecting piece 508 are respectively connected with the fifth connecting piece 501, the sixth connecting piece 502, the seventh connecting piece 503 and the eighth connecting piece 504, so that the knee joint posterior traction brace 1 is connected with the first air bag 201 and the second air bag 301 above, the first air bag 201 and the second air bag 301 are fixed, the first air bag 201 and the second air bag 301 are prevented from moving, supporting force is provided for the knee joint, then the first air bag 201 and the second air bag 301 are inflated and pressurized through the mouths of the first air nozzle 202 and the second air nozzle 302 respectively through the first inflator 203 and the second inflator 303, the first air bag 201 and the second air bag 301 are made to bulge and completely fit with the outer side of the patella fracture part, annular gathering pressure is generated for the patella fracture part, an improvement effect is given to the patella fracture part, the patella fracture part is made to reset, in the resetting process of the patella fracture part, the distance between the first connecting mechanism 4 and the second connecting mechanism 5 can be adjusted continuously through the adjustment, the first air bag 201 and the second air bag 301 are made to gather continuously, the gradual resetting of the patella fracture part is achieved, and the anatomical resetting and the functional resetting of the patella are achieved.
In summary, the patellar fracture reduction fixator provided in the embodiment of the present invention, through the design of the first pressurizing mechanism and the second pressurizing mechanism, the first air bag in the first pressurizing mechanism and the second air bag in the second pressurizing mechanism can be respectively disposed at the upper and lower parts of the patellar fracture, and are respectively connected to the second connecting member and the fourth connecting member through the first connecting member and the third connecting member, so that the first pressurizing mechanism and the second pressurizing mechanism fix the patellar fracture, and the first air bag and the second air bag are respectively inflated and pressurized through the first inflator and the second inflator, so as to provide an external gathering pressure for the patellar fracture, and the patellar fracture with a poor position after fixation is improved or anatomically reduced according to the concept of "active reduction and functional healing" of the whole patellar bone by the Mongolian doctor.
While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. The utility model provides a patellar fracture reduction fixer, its characterized in that drags brace (1), first loading system (2) and second loading system (3) behind the knee joint, first loading system (2) through first coupling mechanism (4) with second loading system (3) are connected, drag brace (1) behind the knee joint through second coupling mechanism (5) respectively with first loading system (2) with second loading system (3) are connected.
2. The patellar fracture reduction fixator according to claim 1, wherein the first pressurizing mechanism (2) comprises a first air bag (201), a first air nozzle (202) and a first inflator (203), the second pressurizing mechanism (3) comprises a second air bag (301), a second air nozzle (302) and a second inflator (303), the first air bag (201) and the second air bag (301) are both half-moon-shaped structures, the first air nozzle (202) and the second air nozzle (302) are respectively communicated with the first air bag (201) and the second air bag (301), the first inflator (203) and the second inflator (303) are respectively connected with the mouths of the first air nozzle (202) and the second air nozzle (302), the left end and the right end of the first air bag (201) are respectively provided with a first mounting hole (204) and a second mounting hole (205), the left end and the right end of the second air bag (301) are respectively provided with a third mounting hole (304) and a fourth mounting hole (305) ).
3. The patellar fracture reduction fixator according to claim 2, wherein the first and second balloons (201, 301) are both made of rubber.
4. The patellar fracture reduction fixator according to claim 3, wherein the first connection mechanism (4) comprises a first connector (401), a second connector (402), a third connector (403), and a fourth connector (404), the first connector (401) and the second connector (402) are respectively disposed in the first mounting hole (204) and the second mounting hole (205), the third connector (403) and the fourth connector (404) are respectively disposed in the third mounting hole (304) and the fourth mounting hole (305), and the first connector (401) and the third connector (403) are respectively connected with the second connector (402) and the fourth connector (404).
5. The patellar fracture reduction fixator according to claim 4, wherein a fifth mounting hole (101), a sixth mounting hole (102), a seventh mounting hole (103) and an eighth mounting hole (104) are symmetrically formed in the knee joint posterior distraction brace (1), the second connecting mechanism (5) comprises a fifth connecting piece (501), a sixth connecting piece (502), a seventh connecting piece (503), an eighth connecting piece (504), a ninth connecting piece (505), a tenth connecting piece (506), an eleventh connecting piece (507) and a twelfth connecting piece (508), the fifth connecting piece (501), the sixth connecting piece (502), the seventh connecting piece (503) and the eighth connecting piece (504) are respectively formed in the first mounting hole (204), the second mounting hole (205), the third mounting hole (304) and the fourth mounting hole (305), and the ninth connecting piece (505) and the mounting hole (104) are respectively formed in the knee joint posterior distraction brace (1), The tenth connecting piece (506), the eleventh connecting piece (507) and the twelfth connecting piece (508) are respectively arranged in the fifth mounting hole (101), the sixth mounting hole (102), the seventh mounting hole (103) and the eighth mounting hole (104), and the ninth connecting piece (505), the tenth connecting piece (506), the eleventh connecting piece (507) and the twelfth connecting piece (508) are respectively connected with the fifth connecting piece (501), the sixth connecting piece (502), the seventh connecting piece (503) and the eighth connecting piece (504).
6. The patellar fracture reduction fixator according to claim 4, wherein the first connector (401), the second connector (402), the third connector (403), the fourth connector (404), the fifth connector (501), the sixth connector (502), the seventh connector (503), the eighth connector (504), the ninth connector (505), the tenth connector (506), the eleventh connector (507), and the twelfth connector (508) are all a strap or a rope.
7. The patellar fracture reduction fixator according to claim 1, wherein the knee posterior distraction brace (1) is a semi-annular structure.
8. The patellar fracture reduction fixator according to claim 1 or 7, wherein a protective pad (6) is provided on the medial surface of the knee posterior distraction brace (1).
9. The patellar fracture reduction fixator according to claim 8, wherein the protective pad (6) is made of silica gel, and the knee joint posterior distraction brace (1) is made of plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121794821.9U CN215960226U (en) | 2021-08-03 | 2021-08-03 | Patella fracture reduction fixator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121794821.9U CN215960226U (en) | 2021-08-03 | 2021-08-03 | Patella fracture reduction fixator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215960226U true CN215960226U (en) | 2022-03-08 |
Family
ID=80576881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121794821.9U Expired - Fee Related CN215960226U (en) | 2021-08-03 | 2021-08-03 | Patella fracture reduction fixator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215960226U (en) |
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2021
- 2021-08-03 CN CN202121794821.9U patent/CN215960226U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20220308 |