CN219147853U - Spliced type internal self-supporting elastic growth rod - Google Patents
Spliced type internal self-supporting elastic growth rod Download PDFInfo
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- CN219147853U CN219147853U CN202223531770.8U CN202223531770U CN219147853U CN 219147853 U CN219147853 U CN 219147853U CN 202223531770 U CN202223531770 U CN 202223531770U CN 219147853 U CN219147853 U CN 219147853U
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Abstract
The utility model provides a spliced in-vivo self-opening elastic growth rod, which aims to solve the problem that the existing growth rod needs to be cut through back skin for adjusting along with the physical development and disease change of an infant in the use process by general anesthesia operation for many times, and comprises an inner fixing rod, a connecting structure, an elastic structure, a locking structure and a fixing structure; the connecting structure, the elastic structure and the locking structure are all arranged in the inner fixing rod; the fixing structures are respectively arranged at two ends of the inner fixing rod; one end of the elastic structure is connected with the connecting structure, and the other end of the elastic structure is connected with the locking structure. The utility model has the beneficial effects that: solves the problem that the traditional growth rod needs to be cut and opened repeatedly in general anesthesia operation, and realizes the active and continuous elastic opening of the growth rod in the body by utilizing a spring structure.
Description
Technical Field
The utility model belongs to the technical field of medical appliances, and particularly relates to a spliced in-vivo self-opening elastic growth rod.
Background
Early-onset scoliosis (EOS) refers to a spinal deformity diagnosed by the infant 10 years old, and requires orthopedic surgery using growth-friendly endophytes for the purpose of controlling the spinal deformity while preserving the growth potential of the spine and the thorax. At present, the traditional growth rod, the magnetic control growth rod and the like are commonly used, but all have obvious defects:
the traditional growth rod is required to be cut off back skin for a plurality of times for stretching along with the physical development and disease change of the infant. The magnetic control growth rod is difficult to effectively pre-bend and cannot be used for severe and complex deformity.
The utility model aims at the problems and provides a spliced type in-vivo self-opening elastic growth rod.
Disclosure of Invention
In order to overcome the problems in the background art, the utility model provides a spliced in-vivo self-opening elastic growth rod.
The spliced type internal self-opening elastic growth rod comprises an internal fixing rod, a connecting structure, an elastic structure, a locking structure and a fixing structure; the connecting structure, the elastic structure and the locking structure are all arranged in the inner fixing rod; the fixing structures are respectively arranged at two ends of the inner fixing rod; one end of the elastic structure is connected with the connecting structure, and the other end of the elastic structure is connected with the locking structure.
Further, the inner fixing rod comprises a first inner fixing rod and a second inner fixing rod; one end of the connecting structure is separated from the first internal fixing rod and fixed on the outer side wall of the first internal fixing rod, and the other end of the connecting structure is in sliding connection with the second internal fixing rod.
Further, the elastic structure is arranged on the outer side wall of the second inner fixing rod; the locking structure is separated from the second internal fixing rod and is fixed on the outer side wall of the second internal fixing rod.
Further, the fixing structure comprises a first fixing structure and a second fixing structure; the first fixing structure is arranged at one end of the first inner fixing rod far away from the second inner fixing rod; the second fixing structure is arranged at one end of the second internal fixing rod far away from the first internal fixing rod.
Further, the connecting structure comprises a connecting bracket, a first locking bolt and a standby bolt; a first through hole and a second through hole are formed in the side wall of the connecting support; the top of the connecting bracket is provided with a threaded hole; the first locking bolt and the standby bolt are matched with the threaded holes.
Further, the threaded holes are respectively communicated with the side walls of the first through hole and the second through hole.
Further, the second internal fixing rod is arranged in the first through hole; the first internal fixing rod is arranged in the second through hole.
Further, the locking structure comprises a locking bracket and a second locking bolt; the locking support is arranged on the outer side wall of the second inner fixing rod, and the second locking bolt is in threaded connection with the locking support.
Further, the first fixing structure comprises a first fixing bolt, a first mounting position and a third locking bolt; the first installation position is arranged at the top of the first fixing bolt; the third locking bolt is in threaded connection with the first installation position.
Further, the second fixing structure comprises a second fixing bolt, a second installation position and a fourth locking bolt; the second installation position is arranged at the top of the second fixing bolt; and the fourth locking bolt is in threaded connection with the second installation position.
In some embodiments of the present application, pressure sensors are respectively disposed at two ends of the elastic structure, the pressure sensors are in data connection with an external remote sensing device, the external remote sensing device can receive and display pressure provided by the elastic structure sensed by the pressure sensors, and assist a doctor to accurately determine the surgical intervention time of the elastic self-expanding growth rod according to attenuation of elastic force.
The utility model has the beneficial effects that: the problem that the traditional growth rod needs to be cut and opened repeatedly in general anesthesia operation is solved, the spring structure is utilized to realize the active and continuous elastic opening of the growth rod in the body, and the in-vivo mechanical sensing chip and the remote sensing technology are utilized to accurately monitor the attenuation of elastic force in the body and accurately judge the operation intervention time of the elastic self-opening growth rod. Meanwhile, the arrangement of the spare bolt of the locking structure can help to directly convert the elastic self-expanding growth rod into the traditional growth rod applied at present when the spring fails, so that extra damage to a patient caused by revision surgery is avoided.
Drawings
FIG. 1 is a schematic view of a structure of an elastic growth rod embodying the present utility model;
FIG. 2 is a schematic structural view of a connection structure embodying the present utility model;
FIG. 3 is a schematic view of a locking mechanism embodying the present utility model;
FIG. 4 is a schematic structural view of a first fastening structure embodying the present utility model;
FIG. 5 is a schematic structural view of a second fastening structure embodying the present utility model;
FIG. 6 is a schematic view of another construction of an elastically grown rod embodying the present utility model;
FIG. 7 is a top view of another flexible growth rod embodying the present utility model;
in the figure, 1, a first internal fixing rod; 2. a second internal fixation rod; 3. a connection structure; 31. a connecting bracket; 32. a first through hole; 33. a second through hole; 34. a first locking bolt; 35. a spare bolt; 4. a locking structure; 41. locking the bracket; 42. a second locking bolt; 5. a first fixed structure; 51. a first fixing bolt; 52. a first mounting location; 53. a third locking bolt; 6. a second fixing structure; 61. a second fixing bolt; 62. a second mounting location; 63. a fourth locking bolt; 7. an elastic structure; 8. a pressure sensor.
Detailed Description
The following detailed description of the embodiments of the present utility model will be made more apparent to those skilled in the art from the following detailed description, in which the utility model is embodied in several, but not all, embodiments of the utility model. The utility model may be embodied or applied in other specific forms and features of the following examples and examples may be combined with each other without conflict, all other examples being contemplated by those of ordinary skill in the art without undue burden from the present disclosure, based on the examples of the utility model.
The spliced in-vivo self-expanding elastic growth rod shown in fig. 1 comprises an inner fixing rod, a connecting structure 3, an elastic structure 7, a locking structure 4 and a fixing structure; the connecting structure 3, the elastic structure 7 and the locking structure 4 are all arranged inside the inner fixing rod; the fixing structures are respectively arranged at two ends of the inner fixing rod; one end of the elastic structure 7 is connected with the connecting structure 3, and the other end is connected with the locking structure 4. The inner fixing rod comprises a first inner fixing rod 1 and a second inner fixing rod 2; one end of the connecting structure 3 is separated from the first internal fixing rod 1 and fixed on the outer side wall of the first internal fixing rod 1, and the other end is in sliding connection with the second internal fixing rod 2. The elastic structure 7 is arranged on the outer side wall of the second inner fixing rod 2; the locking structure 4 is separated from the second internal fixing rod 2 and is fixed on the outer side wall of the second internal fixing rod 2.
The fixing structure comprises a first fixing structure 5 and a second fixing structure 6; the first fixing structure 5 is arranged at one end of the first inner fixing rod 1 away from the second inner fixing rod 2; the second fixing structure 6 is disposed at an end of the second inner fixing rod 2 remote from the first inner fixing rod 1. When in use, the first internal fixation rod 1 is fixed in the infant body through the first fixing structure 5, and the second internal fixation rod 2 is fixed in the infant body through the second fixing structure 6. Specifically, in order to increase the reliability of the fixing structure, two or more first fixing structures 5 are provided on the first inner fixing rod 1; two or more second fixing structures 6 are provided on the second inner fixing rod 2.
The elastic structure 7 comprises a spring which is sleeved on the second inner fixing rod 2; one end of the spring is propped against the connecting structure 3, and the other end is propped against the locking structure 4. The locking structure 4 is fixedly connected with the second internal fixing rod 2, and the connecting structure 3 is in sliding connection with the second internal fixing rod 2. After the spring is compressed, the elastic growth rod is fixed in the infant body by using the first fixing structure 5 and the second fixing structure 6. After the elastic growth rod is implanted into the infant, the spring is gradually stretched or shortened along with the physical development and disease change of the infant, so that the elastic growth rod is stretched or shortened along with the infant, and if no emergency exists, the growth rod does not need to be opened again to be adjusted. When the elasticity provided by the elastic structure 7 counteracts the tensile force of the patient's spine, and the elastic structure 7 cannot push the connecting structure 3 to move, the elastic structure 7 cannot continuously push the connecting structure 3 to move, but still can support the connecting structure 3, so that the connecting structure 3 cannot move towards the locking structure 4, and at the moment, the elastic growth rod is converted into a common growth rod to continuously support the patient's spine.
As can be seen in fig. 2, the connecting structure 3 includes a connecting bracket 31, a first locking bolt 34 and a backup bolt 35; a first through hole 32 and a second through hole 33 are arranged on the side wall of the connecting bracket 31; two threaded holes are formed in the top of the connecting bracket 31; the first locking bolt 34 and the backup bolt 35 are both fitted with threaded holes. Wherein the first through hole 32 has a diameter larger than the outer diameter of the second inner fixing rod 2 and the second through hole 33 is fully adapted to the first inner fixing rod 1, preferably the first through hole 32 has a diameter differing from the outer diameter of the second inner fixing rod 2 by 1mm. The two threaded holes communicate with the side walls of the first through hole 32 and the second through hole 33, respectively. In use, the second internal fixation rod 2 is inserted into the first through hole 32, and the first internal fixation rod 1 is inserted into the second through hole 33. The second internal fixation rod 2 is pushed again, compressing the spring. Then, the first locking bolt 34 is screwed into the threaded hole communicated with the second through hole 33, the spare bolt 35 is screwed into the threaded hole communicated with the first through hole 32, then the first inner fixing rod 1 is propped against the inner side wall of the second through hole 33, the second inner fixing rod 2 is propped against the inner side wall of the first through hole 32, and the first inner fixing rod 1 and the second inner fixing rod 2 are locked inside the connecting structure 3 by friction force. After that, the elastic growth rod is fixed in the infant body using the first fixing structure 5 and the second fixing structure 6. Finally, the standby bolt 35 for pressing the second internal fixing rod 2 is loosened, so that the spring can push the connecting structure 3, and the second internal fixing rod 2 can be far away from the first internal fixing rod 1 along with the extension of the spring. At this time, the elastic structure 7 pushes the connecting structure 3 to move in a direction away from the locking structure 4, that is, pushes the part of the spine connected with the first internal fixation rod 1 to gradually get away from the part of the spine connected with the first internal fixation rod 1, so as to achieve the therapeutic purpose.
When the elastic force provided by the elastic structure 7 is offset with the tensile force of the patient's spine, and the elastic structure 7 cannot push the connecting structure 3 to move, the backup bolt 35 can be screwed into the threaded hole to lock the relative positions of the connecting structure 3 and the second internal fixation rod 2, and the elastic growth rod is converted into a common growth rod at this time to continuously support the patient's spine.
As can be seen in connection with fig. 3, the locking structure 4 comprises a locking bracket 41 and a second locking bolt 42; the locking bracket 41 is provided on the outer sidewall of the second inner fixing rod 2, and the second locking bolt 42 is screw-coupled with the locking bracket 41. A third through hole is formed in the side wall of the locking bracket 41, a threaded hole matched with the second locking bolt 42 is formed in the top of the locking bracket, and the threaded hole is communicated with the third through hole. When the locking device is used, the second internal fixing rod 2 is inserted into the third through hole, after the locking support 41 is adjusted to a proper position, the second locking bolt 42 is screwed into the threaded hole, the second internal fixing rod 2 is propped against the inner side wall of the third through hole, and the locking structure 4 is firmly fixed on the second internal fixing rod 2 by friction force.
As can be seen in fig. 4, the first fixing structure 5 includes a first fixing bolt 51, a first mounting location 52 and a third locking bolt 53; the first mounting location 52 is provided on top of the first fixing bolt 51; the third lock bolt 53 is threadedly coupled to the first mounting location 52. When in use, the first fixing bolt 51 is nailed into the bone of an infant, then the first internal fixing rod 1 is placed into the first installation position 52, then the third locking bolt 53 is screwed into the first installation position 52, the first internal fixing rod 1 is propped against the inner side wall of the first installation position 52, and the first internal fixing rod 1 is firmly fixed on the first fixing structure 5 by friction force.
As can be seen in fig. 5, the second fixing structure 6 includes a second fixing bolt 61, a second mounting location 62 and a fourth locking bolt 63; the second mounting position 62 is provided on the top of the second fixing bolt 61; the fourth lock bolt 63 is threadedly coupled to the second mounting location 62. When in use, the second fixing bolt 61 is nailed into the bone of an infant, then the second internal fixing rod 2 is placed into the second installation position 62, then the fourth locking bolt 63 is screwed into the second installation position 62, the second internal fixing rod 2 is propped against the inner side wall of the second installation position 62, and the second internal fixing rod 2 is firmly fixed on the second fixing structure 6 by friction force.
The application method of the utility model comprises the following steps:
1. mounting the locking structure 4 to the second inner fixing rod 2;
2. mounting the spring to the second inner fixing rod 2;
3. the first internal fixing rod 1 and the second internal fixing rod 2 are fixed by a connecting structure 3;
4. implanting the first fixing bolt 51 and the second fixing bolt 61 into the bone of the infant;
5. locking the first inner fixing rod 1 on the first fixing structure 5, and locking the second inner fixing rod 2 on the second fixing structure 6;
6. the backup bolt 35 pressing the second inner fixing rod 2 is loosened.
In some embodiments of the present application, pressure sensors 8 are respectively disposed at two ends of the elastic structure 7, the pressure sensors 8 are in data connection with an external remote sensing device, and the external remote sensing device can receive and display pressure provided by the elastic structure 7 sensed by the pressure sensors 8, so as to assist a doctor in accurately determining the surgical intervention time of the elastic self-expanding growth rod according to attenuation of elastic force.
When the spine growth sensor is implanted, the spring is compressed by moving the connecting structure 3, and after the spare bolt 35 is loosened, the elastic structure 7 pushes the first internal fixing rod 1 to move through the connecting structure 3, so that the spine growth is continuously promoted, and the mechanical sensing chip can sense the elasticity of the spring in real time. The regular outpatient service of the child patient is followed up, the external remote sensing is used for monitoring the elasticity of the spring when the X-ray examination is shot, and the time for performing surgical intervention is accurately determined.
The above description of embodiments is only for the understanding of the present utility model. It should be noted that it will be apparent to those skilled in the art that modifications can be made to the present utility model without departing from the principles of the utility model, and such modifications will fall within the scope of the claims.
Claims (10)
1. The spliced internal self-opening elastic growth rod comprises an internal fixing rod, a connecting structure, an elastic structure, a locking structure and a fixing structure, and is characterized in that the connecting structure, the elastic structure and the locking structure are all arranged in the internal fixing rod; the fixing structures are respectively arranged at two ends of the inner fixing rod; one end of the elastic structure is connected with the connecting structure, and the other end of the elastic structure is connected with the locking structure.
2. The spliced in vivo self-expanding elastic growth rod of claim 1, wherein the internal fixation rod comprises a first internal fixation rod and a second internal fixation rod; one end of the connecting structure is separated from the first internal fixing rod and fixed on the outer side wall of the first internal fixing rod, and the other end of the connecting structure is in sliding connection with the second internal fixing rod.
3. The spliced in vivo self-expanding elastic growth rod of claim 2, wherein the elastic structure is disposed on the outer sidewall of the second internal fixation rod; the locking structure is separated from the second internal fixing rod and is fixed on the outer side wall of the second internal fixing rod.
4. The spliced in vivo self-expanding elastic growth rod of claim 2, wherein the fixation structure comprises a first fixation structure and a second fixation structure; the first fixing structure is arranged at one end of the first inner fixing rod far away from the second inner fixing rod; the second fixing structure is arranged at one end of the second internal fixing rod far away from the first internal fixing rod.
5. The spliced in-vivo self-expanding elastic growth rod according to claim 2, wherein the connecting structure comprises a connecting bracket, a first locking bolt and a standby bolt; a first through hole and a second through hole are formed in the side wall of the connecting support; the top of the connecting bracket is provided with a threaded hole; the first locking bolt and the standby bolt are matched with the threaded holes.
6. The spliced in vivo self-expanding elastic growth rod of claim 5, wherein the threaded holes are in communication with the sidewalls of the first through hole and the second through hole, respectively.
7. The spliced in-vivo self-expanding elastic growth rod of claim 5, wherein the second internal fixation rod is disposed inside the first through hole; the first internal fixing rod is arranged in the second through hole.
8. The spliced in vivo self-expanding elastic growth rod of claim 2, wherein the locking structure comprises a locking bracket and a second locking bolt; the locking support is arranged on the outer side wall of the second inner fixing rod, and the second locking bolt is in threaded connection with the locking support.
9. The spliced in-vivo self-expanding elastic growth rod of claim 4, wherein the first fixing structure comprises a first fixing bolt, a first mounting position and a third locking bolt; the first installation position is arranged at the top of the first fixing bolt; the third locking bolt is in threaded connection with the first installation position.
10. The spliced in-vivo self-expanding elastic growth rod of claim 4, wherein the second fixing structure comprises a second fixing bolt, a second mounting position and a fourth locking bolt; the second installation position is arranged at the top of the second fixing bolt; and the fourth locking bolt is in threaded connection with the second installation position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223531770.8U CN219147853U (en) | 2022-12-29 | 2022-12-29 | Spliced type internal self-supporting elastic growth rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223531770.8U CN219147853U (en) | 2022-12-29 | 2022-12-29 | Spliced type internal self-supporting elastic growth rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219147853U true CN219147853U (en) | 2023-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223531770.8U Active CN219147853U (en) | 2022-12-29 | 2022-12-29 | Spliced type internal self-supporting elastic growth rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219147853U (en) |
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2022
- 2022-12-29 CN CN202223531770.8U patent/CN219147853U/en active Active
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