CN216317742U - Novel retractor fixing device in posterior lumbar surgery - Google Patents
Novel retractor fixing device in posterior lumbar surgery Download PDFInfo
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- CN216317742U CN216317742U CN202020423748.3U CN202020423748U CN216317742U CN 216317742 U CN216317742 U CN 216317742U CN 202020423748 U CN202020423748 U CN 202020423748U CN 216317742 U CN216317742 U CN 216317742U
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- limb
- retracting
- foot
- fixing device
- posterior lumbar
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Abstract
The utility model discloses a novel retracting and fixing device in posterior lumbar surgery, which comprises: one end of the first retracting limb is provided with a bearing; one end of the second retraction limb is provided with a threaded hole, and one end of the second retraction limb, close to the threaded hole, is provided with a through hole; the screw rod is arranged in the threaded hole, one end of the screw rod is fixedly connected with the bearing inner ring, and the other end of the screw rod penetrates through the threaded hole and is connected with a knob; the guide rod, the guide rod sets up in the through-hole, guide rod one end with first the interior side fixed connection of the limb foot of retracting, the guide rod other end passes the through-hole extends to the limb foot outside is retracted to the second. The utility model aims to provide a novel retracting and fixing device in posterior lumbar surgery, which can finish fine adjustment of retracting space by rotating a knob, is convenient for incision distance adjustment during surgery, ensures the surgical field of vision and improves the surgical convenience.
Description
Technical Field
The utility model relates to the technical field of retraction devices, in particular to a novel retraction fixing device in posterior lumbar surgery.
Background
The spine consists of a front vertebral body, an intervertebral disc, a rear vertebral arch and various bulges, a plurality of muscles and ligaments are attached to the periphery of the spine, and in order to clearly expose the operation visual field, particularly when the thoracolumbar spine is used for a posterior approach, the muscles, the ligaments and the like around the spine need to be retracted by using various draw hooks or retractors on two sides of the spine. The core problem of the operation is the exposure of the operation visual field, the resistance of the retraction of the posterior operation visual field mainly comes from muscles at two sides of the spinal column, the superficial layer and the deep layer are different, a skin fascia incision with equal size is often adopted for obtaining a certain operation space, sometimes even larger, so that the operation is convenient, and meanwhile, the muscles and ligaments are required to be retracted and fixed to prevent the operation from being influenced.
At present, the retractor fixing device can assist the lumbar vertebra operation through retractor blades, but the general retractor device is difficult to finely adjust the spacing between the retractor blades at present, the incision distance is difficult to adjust, and the operation visual field is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a novel retracting and fixing device in posterior lumbar surgery, which solves the problem that the surgical incision distance is difficult to adjust and the surgical field of vision is influenced.
In order to achieve the above object, the present invention provides the following technical solution, a novel retracting and fixing device in posterior lumbar surgery, comprising:
one end of the first retracting limb is provided with a bearing;
the second retracting limb is parallel to the first retracting limb, a threaded hole is formed in one end of the second retracting limb, and a through hole is formed in one end, close to the threaded hole, of the second retracting limb;
the screw rod is arranged in the threaded hole, one end of the screw rod is fixedly connected with the bearing inner ring, and the other end of the screw rod penetrates through the threaded hole and is connected with a knob;
the guide rod, the guide rod sets up in the through-hole, guide rod one end with first the interior side fixed connection of the limb foot of retracting, the guide rod other end passes the through-hole extends to the limb foot outside is retracted to the second.
Preferably, the first arm foot of drawing back includes first upper limbs foot and first lower limbs foot, first upper limbs foot one end with bearing inner race fixed connection, first upper limbs foot the other end with first lower limbs foot is articulated to be connected.
Preferably, the second retraction limb foot comprises a second upper limb foot and a second lower limb foot, one end of the second upper limb foot is in threaded connection with the screw, and the other end of the second upper limb foot is hinged to the second lower limb foot.
Preferably, the first lower limb foot bottom wall is provided with a retracting sheet, and the first lower limb foot is connected with the retracting sheet through a fastening bolt.
Preferably, the end of the fastening bolt is provided with a butterfly nut.
Preferably, the pulling-apart pieces are stainless steel pieces with ends bent outwards.
Preferably, the end of the pulling piece is provided with sharp teeth.
Preferably, the outer wall of the knob is provided with anti-skid grains.
Preferably, an angle adjusting device is arranged between the second upper limb foot and the second lower limb foot, and the angle adjusting device comprises:
one end of the arc-shaped plate is fixedly connected with the outer wall of the second lower limb foot, the other end of the arc-shaped plate extends to the second upper limb foot, an arc-shaped groove is formed in the arc-shaped plate, and scales are arranged on the edge of the arc-shaped groove;
the sliding groove is formed in the outer wall of the second upper limb foot, and a sliding block is arranged in the sliding groove;
and the screw penetrates through the arc-shaped groove and is installed on the sliding block.
The technical scheme of the utility model has the following advantages: the utility model discloses a novel retracting and fixing device in posterior lumbar surgery, which comprises: one end of the first retracting limb is provided with a bearing; one end of the second retraction limb is provided with a threaded hole, and one end of the second retraction limb, close to the threaded hole, is provided with a through hole; the screw rod is arranged in the threaded hole, one end of the screw rod is fixedly connected with the bearing inner ring, and the other end of the screw rod penetrates through the threaded hole and is connected with a knob; the guide rod, the guide rod sets up in the through-hole, guide rod one end with first the interior side fixed connection of the limb foot of retracting, the guide rod other end passes the through-hole extends to the limb foot outside is retracted to the second. The utility model aims to provide a novel retracting and fixing device in posterior lumbar surgery, which can finish fine adjustment of retracting space by rotating a knob, is convenient for incision distance adjustment during surgery, ensures the surgical field of vision and improves the surgical convenience.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the apparatus particularly pointed out in the written description and drawings thereof.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
fig. 1 is a schematic view of the overall structure of a novel retracting and fixing device in posterior lumbar surgery provided by the utility model;
FIG. 2 is a front view of a retracting sheet of the retracting and fixing device in the posterior lumbar surgery provided by the utility model;
FIG. 3 is a left side view of a retracting sheet of the retracting and fixing device in the posterior lumbar surgery provided by the utility model;
fig. 4 is a schematic view of the angle adjusting device of the novel retracting and fixing device in posterior lumbar surgery provided by the utility model.
The following were used: 1-first retraction limb, 2-bearing, 3-second retraction limb, 4-threaded hole, 5-through hole, 6-screw rod, 7-knob, 8-guide rod, 9-first upper limb, 10-first lower limb, 11-second upper limb, 12-second lower limb, 13-fastening bolt, 14-retraction piece, 15-arc plate, 16-arc groove, 17-chute, 18-slide block and 19-screw.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
The embodiment of the utility model provides a novel retracting and fixing device in posterior lumbar surgery, which comprises the following components as shown in figure 1:
a first retracting limb 1, wherein one end of the first retracting limb 1 is provided with a bearing 2;
a second retracting limb 3, wherein the second retracting limb 3 is parallel to the first retracting limb 1, a threaded hole 4 is formed in one end of the second retracting limb 3, and a through hole 5 is formed in one end, close to the threaded hole 4, of the second retracting limb 3;
the screw 6 is arranged in the threaded hole 4, one end of the screw 6 is fixedly connected with the inner ring of the bearing 2, and the other end of the screw 6 penetrates through the threaded hole 4 and is connected with a knob 7;
guide bar 8, guide bar 8 sets up in the through-hole 5, 8 one end of guide bar with 1 inboard fixed connection of first retracted limb, 8 other ends of guide bar pass through-hole 5 extends to 3 outsides of second retracted limb.
The working principle and the beneficial effects of the technical scheme are as follows: the first and second retraction limbs 1 and 3 are arranged in parallel for retracting an incision, one end of the first retraction limb 1 is provided with a bearing 2, the inner ring of the bearing 2 is fixedly connected with one end of a screw 6, the other end of the screw 6 passes through a threaded hole 4 of the second retraction limb 3 and a knob 7 is arranged at the tail end, a guide rod 8 is further arranged between the first retraction limb 1 and the second retraction limb 3, one end of the guide rod 8 is fixed with the inner side of the first retraction limb 1, the other end of the guide rod 8 passes through a through hole 5 of the second retraction limb 3 and extends to the outer part of the second retraction limb 3, the screw 6 can be controlled to rotate by the knob 7, the screw 6 is in threaded connection with the second retraction limb 3, the second retraction limb 3 can move along with the rotation of the screw 6, the guide rod 8 is arranged to ensure that the second retraction limb 3 can axially translate along the guide rod 8, by the retraction fixing device, the retraction knob 7 can be rotated to adjust the distance between the first and second retraction limb 1, finish the fine setting of retracting the interval, the incision distance's of being convenient for during the operation regulation promotes the operation convenience.
In one embodiment, as shown in fig. 1, the first retracting limb foot 1 comprises a first upper limb foot 9 and a first lower limb foot 10, one end of the first upper limb foot 9 is fixedly connected with the outer ring of the bearing 2, and the other end of the first upper limb foot 9 is hinged with the first lower limb foot 10.
The working principle and the beneficial effects of the technical scheme are as follows: first pull out limb foot 1 includes first upper limb foot 9 and first limb foot 10, 9 one end of first upper limb foot and bearing 2 outer lane fixed connection, and the 9 other ends of first upper limb foot and first limb foot 10 articulate and are connected, when pulling out the fixing device back that finishes using, can fold first upper limb foot 9 and first limb foot 10, reduce area occupied, be convenient for accomodate and deposit.
In one embodiment, as shown in fig. 1, the second retracted limb 3 comprises a second upper limb 11 and a second lower limb 12, one end of the second upper limb 11 is connected with the screw rod 6 in a threaded manner, and the other end of the second upper limb 11 is connected with the second lower limb 12 in an articulated manner.
The working principle and the beneficial effects of the technical scheme are as follows: the limb foot 3 is led out to the second includes that second upper limb foot 11 and second lower limb foot 12, and screw rod 6 passes 11 screw holes 4 of second upper limb foot and 11 threaded connection with second upper limb foot, and 11 other ends of second upper limb foot are connected with 12 articulated second lower limb feet, and after the fixing device that leads out used, can be folded second upper limb foot 11 and second lower limb foot 12, reduce area occupied, are convenient for accomodate and deposit.
In one embodiment, as shown in fig. 1-3, a distraction piece 14 is disposed on the bottom wall of the first lower limb foot 10, and the first lower limb foot 10 and the distraction piece 14 are connected by a fastening bolt 13.
The working principle and the beneficial effects of the technical scheme are as follows: the bottom wall of the first lower limb foot 10 is provided with a retracting sheet 14, the first lower limb foot 10 is connected with the retracting sheet 14 through a fastening bolt 13, and the retracting sheet 14 is used for retracting incision transverse muscles or ligaments so as to expose the lumbar.
In one embodiment, the fastening bolt 13 is provided with a butterfly nut at the end.
The working principle and the beneficial effects of the technical scheme are as follows: the tail end of the fastening bolt 13 is provided with a butterfly nut, and the fastening bolt 13 can be screwed through the butterfly nut, so that the pulling piece 14 can be adjusted or replaced conveniently.
In one embodiment, the pull tabs 14 are stainless steel tabs bent at their ends.
The working principle and the beneficial effects of the technical scheme are as follows: the retracting pieces 14 are stainless steel pieces, so that sterilization and disinfection treatment are facilitated, the end parts of the retracting pieces 14 are bent outwards, the bent positions can extend into the lower part of muscles, and the retracting pieces 14 are prevented from falling out.
In one embodiment, the end of the pull tab 14 is provided with tines.
The working principle and the beneficial effects of the technical scheme are as follows: the end of the retracting piece 14 is provided with sharp teeth which can increase the grasping force of the retracting piece 14 on muscles, so that the retracting piece 14 is more stable in the incision.
In one embodiment, the outer wall of the knob 7 is provided with anti-slip lines.
The working principle and the beneficial effects of the technical scheme are as follows: set up knob 7 and be convenient for rotate screw rod 6, 7 outer walls of knob set up anti-skidding line, can increase the frictional force between hand and the knob 7, the phenomenon of skidding appears when preventing to use knob 7.
In one embodiment, as shown in fig. 4, an angle adjusting means is provided between the second upper limb foot 11 and the second lower limb foot 12, the angle adjusting means comprising:
one end of the arc-shaped plate 15 is fixedly connected with the outer wall of the second lower limb leg 12, the other end of the arc-shaped plate 15 extends to the second upper limb leg 11, an arc-shaped groove 16 is formed in the arc-shaped plate 15, and scales are arranged on the edge of the arc-shaped groove 16;
the sliding groove 17 is arranged on the outer wall of the second upper limb foot 11, and a sliding block 18 is arranged in the sliding groove 17;
a screw 19, wherein the screw 19 is arranged on the sliding block 18 through the arc-shaped slot 16.
The working principle and the beneficial effects of the technical scheme are as follows: angle adjusting device can adjust the angle between second upper limb foot 11 and the second lower limb foot 12, second lower limb foot 12 is fixed, unscrew screw 19, then can be with second upper limb foot 11 to second lower limb foot 12 is folding, slider 18 removes in spout 17, screw 19 on the slider 18 removes in arc wall 16, when adjusting required angle, screw 19, it is fixed to enable arc 15 and second upper limb foot 11, set up angle adjusting device, can be according to the space that occupies when the operation with second upper limb foot 11 to the folding required angle of second lower limb foot 12, will drive first upper limb foot 9 and fold to first lower limb foot 10 simultaneously, the length of retracting fixing device has been shortened, the occupation space of retracting fixing device when the operation has been reduced, be convenient for the operation is gone on, set up the scale on arc 15, can more accurate angle regulation.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. A novel retractor fixing device in posterior lumbar surgery is characterized in that:
a first retracting limb (1), wherein one end of the first retracting limb (1) is provided with a bearing (2);
the second retraction limb (3), the second retraction limb (3) is parallel to the first retraction limb (1), one end of the second retraction limb (3) is provided with a threaded hole (4), and one end of the second retraction limb (3) close to the threaded hole (4) is provided with a through hole (5);
the screw (6) is arranged in the threaded hole (4), one end of the screw (6) is fixedly connected with the inner ring of the bearing (2), and the other end of the screw (6) penetrates through the threaded hole (4) and is connected with a knob (7);
guide bar (8), guide bar (8) set up in through-hole (5), guide bar (8) one end with first pull out the inboard fixed connection of limb foot (1), guide bar (8) other end passes through-hole (5) extend to the limb foot (3) are pulled out to the second outside.
2. The novel retracting and fixing device for the posterior lumbar surgery as recited in claim 1, characterized in that the first retracting limb (1) comprises a first upper limb (9) and a first lower limb (10), one end of the first upper limb (9) is fixedly connected with the outer ring of the bearing (2), and the other end of the first upper limb (9) is hinged with the first lower limb (10).
3. The novel retracting and fixing device for the posterior lumbar surgery as recited in claim 1, characterized in that the second retracting limb (3) comprises a second upper limb (11) and a second lower limb (12), one end of the second upper limb (11) is connected with the screw (6) in a threaded manner, and the other end of the second upper limb (11) is connected with the second lower limb (12) in an articulated manner.
4. The novel retracting and fixing device for posterior lumbar surgery of claim 2 is characterized in that the retracting sheet (14) is arranged on the bottom wall of the first lower limb foot (10), and the first lower limb foot (10) is connected with the retracting sheet (14) through a fastening bolt (13).
5. The novel retracting and fixing device for posterior lumbar surgery as claimed in claim 4, characterized in that the end of the fastening bolt (13) is provided with a butterfly nut.
6. The novel retracting and fixing device for posterior lumbar surgery as claimed in claim 4, characterized in that the retracting sheet (14) is a stainless steel sheet with an outward bending end.
7. The novel retracting and fixing device for posterior lumbar surgery of claim 4 is characterized in that the end of the retracting sheet (14) is provided with sharp teeth.
8. The novel retracting and fixing device for posterior lumbar surgery as claimed in claim 1, characterized in that the outer wall of the knob (7) is provided with anti-slip lines.
9. A new type of retracting fixture in posterior lumbar surgery as claimed in claim 3, characterized in that between said second upper limb foot (11) and said second lower limb foot (12) there is provided an angle adjusting device, said angle adjusting device comprising:
one end of the arc-shaped plate (15) is fixedly connected with the outer wall of the second lower limb foot (12), the other end of the arc-shaped plate (15) extends to the second upper limb foot (11), an arc-shaped groove (16) is formed in the arc-shaped plate (15), and scales are arranged on the edge of the arc-shaped groove (16);
the sliding groove (17) is formed in the outer wall of the second upper limb foot (11), and a sliding block (18) is arranged in the sliding groove (17);
a screw (19), wherein the screw (19) passes through the arc-shaped groove (16) and is installed on the sliding block (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020423748.3U CN216317742U (en) | 2020-03-27 | 2020-03-27 | Novel retractor fixing device in posterior lumbar surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020423748.3U CN216317742U (en) | 2020-03-27 | 2020-03-27 | Novel retractor fixing device in posterior lumbar surgery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216317742U true CN216317742U (en) | 2022-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020423748.3U Active CN216317742U (en) | 2020-03-27 | 2020-03-27 | Novel retractor fixing device in posterior lumbar surgery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216317742U (en) |
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2020
- 2020-03-27 CN CN202020423748.3U patent/CN216317742U/en active Active
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