CN213030738U - Distractor for spinal surgery - Google Patents
Distractor for spinal surgery Download PDFInfo
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- CN213030738U CN213030738U CN202021654314.0U CN202021654314U CN213030738U CN 213030738 U CN213030738 U CN 213030738U CN 202021654314 U CN202021654314 U CN 202021654314U CN 213030738 U CN213030738 U CN 213030738U
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- base
- connecting rod
- movable seat
- spinal surgery
- distractor
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Abstract
A spreader for spinal surgery comprises a movable seat, a base, a connecting rod and a locking piece; the movable seat is arranged on the base; a cavity is formed in the middle of the movable seat and the base; a plurality of convex mounting seats are distributed on the periphery of the base in an annular array; a slide rail along the vertical direction is arranged on the mounting seat, and a rotating shaft is arranged on the slide rail in a sliding manner; the rotating shaft is provided with a bolt piece; one end of the bolt piece is inserted into the base, and the other end of the bolt piece is inserted into the connecting rod and is fixedly connected with the connecting rod; the connecting rods are provided with a plurality of groups, and any one connecting rod is provided with and is only matched and connected with one bolt piece; a plurality of inserting plates are distributed on the periphery of the movable seat in an annular array manner and are contacted with the inserting pin pieces extending into the base; a plurality of limiting plates are arranged on the base and are positioned right below the inserting plate; any one limiting plate is provided with one corresponding plug board; the utility model discloses simple structure, simple to operate struts the angle great, and the doctor of being convenient for performs the operation.
Description
Technical Field
The utility model relates to the technical field of medical equipment, especially, relate to a spinal surgery is with strutting ware.
Background
The number of vertebras of the young children is 32-33, and the spine of the adult is formed by connecting 26 vertebrae (7 cervical vertebrae, 12 thoracic vertebrae, 5 lumbar vertebrae, 1 sacral vertebra (5 just born) and 1 caudal vertebra) by ligaments, joints and intervertebral discs. The upper end of the spine supports the skull, the lower hip bone, the middle rib and the back wall of the thorax, the abdominal cavity and the pelvic cavity. The spine has functions of supporting the trunk, protecting the internal organs, protecting the spinal cord, and performing exercise. A longitudinal spinal canal is formed in the spine from top to bottom, and a spinal cord is arranged in the longitudinal spinal canal; the distractor is often needed when the spine operation is carried out, a plurality of distractors are needed to be used in one operation in the prior art, and the operation is complex.
In order to solve the above problems, the present application provides a distractor for spinal surgery.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
Often need use the spreader when carrying out the spinal surgery for solving existence among the background art, once operate among the prior art and need use a plurality of spreaders, operate comparatively loaded down with trivial details technical problem, the utility model provides a spinal surgery is with spreader, the utility model discloses simple structure, simple to operate struts the angle great, and the doctor of being convenient for performs the operation.
(II) technical scheme
In order to solve the problems, the utility model provides a spinal surgery dilator, which comprises a movable seat, a base, a connecting rod and a locking piece;
the movable seat is arranged on the base, and the movable seat and the base are both annular; a cavity is formed in the middle of the movable seat and the base; a plurality of convex mounting seats are distributed on the periphery of the base in an annular array; a slide rail along the vertical direction is arranged on the mounting seat, and a rotating shaft is arranged on the slide rail in a sliding manner; the rotating shaft is provided with a bolt piece; one end of the bolt piece is inserted into the base, and the other end of the bolt piece is inserted into the connecting rod and is fixedly connected with the connecting rod; the connecting rods are provided with a plurality of groups, and any one connecting rod is provided with and is only matched and connected with one bolt piece;
a plurality of inserting plates are distributed on the periphery of the movable seat in an annular array manner and are contacted with the inserting pin pieces extending into the base; a plurality of limiting plates are arranged on the base and are positioned right below the inserting plate; any one limiting plate is provided with one and only corresponding to one plug board.
Preferably, the rotating shaft is provided with a stopper.
Preferably, one end of the connecting rod, which is far away from the bolt piece, is provided with a clamping plate; the connecting rod is provided with a sliding groove along the vertical direction, and the clamping plate slides along the sliding groove.
Preferably, the clamping plate is provided with a plurality of convex parts.
Preferably, the clamp plate is magnetically attracted to the bottom of the linkage.
Preferably, be provided with a plurality of logical grooves on the sliding seat, the retaining member sets up a plurality ofly, and the retaining member passes from leading to the inslot.
Preferably, the bottom of the base is provided with a thread groove, and the bottom of the locking member is in threaded connection with the thread groove in a matched mode.
The above technical scheme of the utility model has following profitable technological effect: in the utility model, the wound surface is firstly cut at the designated position of the back of the patient, and the utility model is placed at the wound surface; firstly, the clamping plate on the connecting rod moves upwards along the sliding groove, and the skin tissue of a patient is placed between the clamping plate and the connecting rod; at the moment, the clamping plate moves downwards along the sliding groove; the clamp plate is magnetically attracted with the bottom of the connecting rod; the magnetic attraction fixation is firmer; the disassembly is more convenient. Then holding the movable seat, and moving the movable seat downwards to extend into the base; a plurality of inserting plates are distributed on the periphery of the movable seat in an annular array manner and are contacted with the pin pieces extending into the base, and the inserting plates move downwards to be contacted with one ends of the pin pieces extending into the base; the bolt piece rotates around the rotating shaft, and the rotating shaft is provided with a limiter; the limiting stopper limits the rotating shaft, and the bolt piece rotates around the rotating shaft to a state parallel to the inserting plate at most. The inserting plate continues to move downwards to drive the rotating shaft and the inserting pin piece to slide downwards along the sliding rail until the inserting plate is contacted with the limiting plate; the plurality of links are fully deployed at this time; then the locking piece penetrates through the through groove and is in threaded fit connection with the threaded groove on the base, and the movable seat and the base are tightly fixed; the movable seat and the base are both circular; a cavity is formed in the middle of the movable seat and the base; the surgeon may perform the surgery directly through the cavity. The utility model discloses simple structure, simple to operate struts the angle great, and the doctor of being convenient for performs the operation.
Drawings
Fig. 1 is a schematic view of the whole structure of the distractor for spinal surgery according to the present invention.
Fig. 2 is a schematic view of the internal structure of the movable seat and the base of the distractor for spinal surgery.
Fig. 3 is an enlarged schematic structural view of the part a of the distractor for spinal surgery according to the present invention.
Fig. 4 is a schematic structural view of the connecting rod end of the distractor for spinal surgery according to the present invention.
Reference numerals: 1. a movable seat; 2. a connecting rod; 3. a locking member; 4. a base; 5. a cavity; 6. a thread groove; 7. a through groove; 8. a mounting seat; 9. a slide rail; 10. inserting plates; 11. a limiting plate; 12. a latch member; 13. a rotating shaft; 14. a splint; 15. a boss portion; 16. a chute.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-4, the distractor for spinal surgery provided by the present invention comprises a movable seat 1, a base 4, a connecting rod 2 and a locking member 3;
the movable seat 1 is arranged on the base 4, and the movable seat 1 and the base 4 are both circular; a cavity 5 is formed in the middle of the movable seat 1 and the base 4; a plurality of convex mounting seats 8 are distributed on the periphery of the base 4 in an annular array; a slide rail 9 along the vertical direction is arranged on the mounting seat 8, and a rotating shaft 13 is arranged on the slide rail 9 in a sliding manner; the rotating shaft 13 is provided with a bolt piece 12; one end of a bolt piece 12 is inserted into the base 4, and the other end of the bolt piece 12 is inserted into the connecting rod 2 and is fixedly connected with the connecting rod 2; the connecting rods 2 are provided with a plurality of groups, and any one connecting rod 2 is provided with and is only matched and connected with one bolt piece 12;
a plurality of inserting plates 10 are distributed on the periphery of the movable seat 1 in an annular array, and the inserting plates 10 are in contact with inserting pin pieces 12 extending into the base 4; a plurality of limiting plates 11 are arranged on the base 4, and the limiting plates 11 are positioned right below the inserting plate 10; any one limiting plate 11 is provided with one corresponding inserting plate 10.
In an alternative embodiment, the shaft 13 is provided with a stopper.
It should be noted that the stopper limits the rotation shaft 13, and the latch member 12 rotates around the rotation shaft 13 to a state of being parallel to the board 10 at most.
In an alternative embodiment, the end of the link 2 remote from the latch member 12 is provided with a clamping plate 14; the link 2 is provided with a slide groove 16 in a vertical direction, and the clamp plate 14 slides along the slide groove 16. The clamping plate 14 is provided with a plurality of protrusions 15.
It should be noted that the splint 14 can hold the skin tissue of the patient for distraction, thereby facilitating the operation of the spine by the surgeon.
In an alternative embodiment, the clamp plate 14 is magnetically attracted to the bottom of the connecting rod 2.
It should be noted that the magnetic attraction fixation is firmer; the disassembly is more convenient.
In an alternative embodiment, a plurality of through slots 7 are provided on movable seat 1, a plurality of locking members 3 are provided, and locking members 3 pass through slots 7.
It should be noted that the locking member 3 is used for auxiliary fixation to ensure a sufficiently large angle for opening.
In an alternative embodiment, the bottom of the base 4 is provided with a threaded groove 6, and the bottom of the locking member 3 is in threaded engagement with the threaded groove 6.
In the utility model, the wound surface is firstly cut at the designated position of the back of the patient, and the utility model is placed at the wound surface; firstly, the clamping plate 14 on the connecting rod 2 moves upwards along the sliding groove 16, and skin tissues of a patient are placed between the clamping plate 14 and the connecting rod 2; the clamping plate 14 is now moved downwards along the runner 16; the clamping plate 14 is magnetically attracted with the bottom of the connecting rod 2; the magnetic attraction fixation is firmer; the disassembly is more convenient. Then holding the movable seat 1, and moving the movable seat 1 downwards to enable the movable seat to extend into the base 4; a plurality of inserting plates 10 are distributed on the periphery of the movable seat 1 in an annular array, the inserting plates 10 are in contact with inserting pin pieces 12 extending into the base 4, and the inserting plates 10 move downwards to be in contact with one ends of the inserting pin pieces 12 extending into the base 4; the bolt piece 12 rotates around the rotating shaft 13, and the rotating shaft 13 is provided with a limiter; the stopper limits the rotation shaft 13, and the latch member 12 rotates around the rotation shaft 13 to a state of being parallel to the card board 10 at most. The inserting plate 10 continues to move downwards to drive the rotating shaft 13 and the plug pin piece 12 to slide downwards along the sliding rail 9 until the inserting plate contacts with the limiting plate 11; the plurality of links 2 are fully deployed at this time; then, the locking piece 3 penetrates through the through groove 7 and is in threaded fit connection with the threaded groove 6 on the base 4, and the movable seat 1 and the base 4 are tightly fixed; the movable seat 1 and the base 4 are both circular; a cavity 5 is formed in the middle of the movable seat 1 and the base 4; the surgeon can perform the operation directly through the cavity 5. The utility model discloses simple structure, simple to operate struts the angle great, and the doctor of being convenient for performs the operation.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (7)
1. The spreader for the spinal surgery is characterized by comprising a movable seat (1), a base (4), a connecting rod (2) and a locking piece (3);
the movable seat (1) is arranged on the base (4), and the movable seat (1) and the base (4) are both annular; a cavity (5) is formed in the middle of the movable seat (1) and the base (4); a plurality of convex mounting seats (8) are distributed on the periphery of the base (4) in an annular array; a slide rail (9) along the vertical direction is arranged on the mounting seat (8), and a rotating shaft (13) is arranged on the slide rail (9) in a sliding manner; a bolt piece (12) is arranged on the rotating shaft (13); one end of the bolt piece (12) is inserted into the base (4), and the other end of the bolt piece (12) is inserted into the connecting rod (2) and is fixedly connected with the connecting rod (2); a plurality of groups of connecting rods (2) are arranged, and any one connecting rod (2) is provided with and is only matched and connected with one bolt piece (12);
a plurality of inserting plates (10) are distributed on the periphery of the movable seat (1) in an annular array, and the inserting plates (10) are in contact with inserting pin pieces (12) extending into the base (4); a plurality of limiting plates (11) are arranged on the base (4), and the limiting plates (11) are positioned right below the inserting plate (10); any one limiting plate (11) is provided with one corresponding inserting plate (10).
2. The distractor for spinal surgery according to claim 1, wherein the shaft (13) is provided with a stopper.
3. Distractor for spinal surgery according to claim 1, characterized in that the end of the connecting rod (2) remote from the latch member (12) is provided with a clamping plate (14); the connecting rod (2) is provided with a sliding groove (16) along the vertical direction, and the clamping plate (14) slides along the sliding groove (16).
4. Distractor for spinal surgery according to claim 3, characterised in that the splint (14) is provided with a plurality of protrusions (15).
5. Distractor for spinal surgery according to claim 3, characterized in that the splint (14) is magnetically attracted to the bottom of the connecting rod (2).
6. The distractor for spinal surgery according to claim 1, wherein a plurality of through slots (7) are provided on the movable seat (1), a plurality of locking members (3) are provided, and the locking members (3) pass through the through slots (7).
7. The distractor for spinal surgery according to claim 1, characterized in that the bottom of the base (4) is provided with a threaded groove (6), and the bottom of the locking member (3) is in threaded connection with the threaded groove (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021654314.0U CN213030738U (en) | 2020-08-11 | 2020-08-11 | Distractor for spinal surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021654314.0U CN213030738U (en) | 2020-08-11 | 2020-08-11 | Distractor for spinal surgery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213030738U true CN213030738U (en) | 2021-04-23 |
Family
ID=75530786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021654314.0U Active CN213030738U (en) | 2020-08-11 | 2020-08-11 | Distractor for spinal surgery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213030738U (en) |
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2020
- 2020-08-11 CN CN202021654314.0U patent/CN213030738U/en active Active
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