CN215688131U - Improved automatic transverse process drag hook - Google Patents
Improved automatic transverse process drag hook Download PDFInfo
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- CN215688131U CN215688131U CN202121514973.9U CN202121514973U CN215688131U CN 215688131 U CN215688131 U CN 215688131U CN 202121514973 U CN202121514973 U CN 202121514973U CN 215688131 U CN215688131 U CN 215688131U
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- transverse process
- drag hook
- process drag
- free arm
- snap ring
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Abstract
The utility model relates to the technical field of medical instruments, in particular to an improved automatic transverse process drag hook which comprises a transverse process drag hook and a mounting seat, wherein the transverse process drag hook and the mounting seat are arranged in a split mode, a snap ring is arranged on one side of the top of the transverse process drag hook, the transverse process drag hook is arranged in an L shape, and the turning angle of the transverse process drag hook is 150 degrees. The utility model overcomes the defects of the prior art, and by arranging the bearing, the connecting rod, the snap ring and the lock catch, medical personnel can clamp the transverse process drag hook on the outer surface of the connecting rod through the snap ring, and then fix the transverse process drag hook through the lock catch so as to install the transverse process drag hook on the free arm, so that the medical personnel can be connected with the adjustable free arm through the tail end of the transverse process drag hook when performing surgery on a patient, the assistant operation is replaced, continuous and stable traction force and holding force can be provided, and unhooking or vertebral plate fracture is avoided. Meanwhile, the operator can freely and flexibly adjust the free arm in the operation according to the body position, the body type and the operation position of the patient, and the operation is simple and convenient.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to an improved automatic transverse process drag hook.
Background
Pulling a hook: instruments for stretching the skin, tissue to expose the surgical field during surgery, transverse process: when the spinal surgery nail rod system is fixed in the vertebral column surgery, a drag hook is needed to be used for exposing an operation area, and the position of pedicle screw implantation nail needs to be positioned according to the middle horizontal line of the transverse process.
However, in the actual use process of the existing retractor, we find that in the traditional thoracolumbar vertebra posterior surgery, such as pure nuclectomy, posterior spinal canal decompression or intervertebral fusion, the vertebral plate of the existing retractor is usually completely or partially cut off, so that the vertebral plate retractor with the stress action point positioned on the vertebral plate is limited in use, the vertebral plate retractor is used only by widely stripping the soft tissue and exposing the vertebral plate, the damage to the soft tissue is easily aggravated, the action point of the vertebral plate retractor is positioned on the vertebral plate, and in the thoracolumbar vertebra posterior decompression, fusion or nuclectomy and other surgeries, the structures such as articular process, vertebral plate and the like are usually cut off, so that the vertebral plate retractor cannot be normally used; meanwhile, in the actual use process of the existing drag hook, the vertebral plate drag hook needs to be operated by an assistant in a cooperative manner, and once the assistant is not concentrated in energy or is tired, the drag hook can cause unhooking or vertebral plate fracture, so that medical staff is very inconvenient to the operation process of a patient.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides an improved automatic transverse process retractor, which overcomes the defects of the prior art, has simple structural design and effectively solves the problem that in the actual use process of the existing retractor, if the existing retractor is found to be used in the traditional thoracolumbar vertebra posterior surgery, such as pure nucleus pulposus extirpation, posterior vertebral canal decompression or intervertebral fusion, the vertebral plate of the existing retractor usually needs to be completely or partially cut off, so that the vertebral plate retractor with the stress action point positioned on the vertebral plate is limited in use, the vertebral plate retractor needs to be widely stripped to expose the vertebral plate for use, the damage to the soft tissue is easily aggravated, the vertebral plate retractor action point is positioned on the vertebral plate, and in the thoracolumbar vertebra posterior decompression, fusion or nucleus pulposus extirpation and other surgeries, the structures such as articular processes, vertebral plates and the like are usually cut off, so that the vertebral plate retractor cannot be normally used; meanwhile, in the actual use process of the existing drag hook, the vertebral plate drag hook needs to be operated by an assistant in a cooperative manner, and once the assistant is not concentrated in energy or is tired, the drag hook can cause unhooking or vertebral plate fracture, so that medical staff can not bring convenience to patients in the operation process.
In order to solve the technical problems, the utility model provides the following technical scheme:
an improved automatic transverse process drag hook comprises a transverse process drag hook and a mounting seat, wherein the transverse process drag hook and the mounting seat are arranged in a split mode, and a clamping ring is arranged on one side of the top of the transverse process drag hook;
the transverse process drag hook is arranged in an L shape, and the turning angle of the transverse process drag hook is 150 degrees;
so that the transverse process drag hook can be connected with the free arm through the snap ring.
Preferably, the movable rod has been run through on the top of mount pad, the one end of horizontal process drag hook is provided with the bayonet socket, the snap ring is provided with two, just the snap ring all is "8" style of calligraphy and sets up.
Preferably, a limiting rod is installed on one side of the installation seat, an adjusting rod penetrates through the inside of the limiting rod, and a bolt is arranged on the outer surface of the movable rod.
Preferably, the top of movable rod is fixed with the installation piece through the pivot, the through-hole has been seted up to one side of installation piece, the internally mounted of through-hole has the gear, the inside of through-hole is provided with free arm, the top of installation piece is provided with adjusts the seat.
Preferably, the installation piece rotates through pivot and movable rod to be connected, adjust the seat and be connected with the top of gear, the surface mounting who adjusts the seat has the bull stick, just the free arm meshes with the gear mutually.
Preferably, the bearing is installed to top one side of free arm, the internally mounted of bearing has the connecting rod, the top of connecting rod is provided with the hasp, the hasp passes through the snap ring and violently suddenly the hook looks joint.
The embodiment of the utility model provides an improved automatic transverse process draw hook, which has the following beneficial effects: through the bayonet socket of transverse process drag hook head end design and human transverse process anatomical structure assorted, more accord with human engineering mechanics, ride on stridely in the transverse process just, can fully draw the soft tissue and expose the operation field of vision, also can accurate location pedicle of vertebral arch, design drag hook somatic part for "L" shape, turning angle is 150, the transverse process drag hook is located the transverse process because of its strong point, need not excessively to strip to chest lumbar vertebrae way of escape soft tissue and can fully expose the operation field of vision, reduce the collateral damage to the bringing of soft tissue simultaneously, can use the way of going in the middle, can be used to the way of going in the intervertebral muscle clearance again, so the strong point is located the drag hook of transverse process and can not receive the influence in use, and when the transverse process drag hook acts on the transverse process, can accurately fix a position the pedicle of vertebral arch according to this anatomical feature, thereby the implantation of aspect pedicle of vertebral arch screw, do not influence operations such as relevant decompression fuses simultaneously yet.
1. By arranging the transverse process drag hook and the bayonet, the bayonet matched with the anatomical structure of the transverse process of the human body is designed at the head end of the transverse process drag hook, which is more in accordance with the human engineering mechanics, and rides on the transverse process just, not only can fully retract soft tissues to expose the operation visual field, but also can accurately position the vertebral pedicle, the drag hook body is designed to be L-shaped, the turning angle is 150 degrees, the transverse process drag hook is positioned at the transverse process due to the supporting point, can fully expose the operation visual field without excessively peeling the soft tissues of the thoracolumbar posterior path, simultaneously reduces the side damage to the soft tissues, can be used for the medial approach and the paravertebral muscle gap approach, therefore, the draw hook with the supporting point positioned on the transverse process is not influenced in use, and when the draw hook of the transverse process acts on the transverse process, the vertebral pedicle can be accurately positioned according to the anatomical feature, so that the implantation of vertebral pedicle screws is facilitated, and the related operations such as decompression fusion and the like are not influenced.
2. Through setting up the bearing, the connecting rod, snap ring and hasp, medical staff's accessible snap ring is with the surface of horizontal process drag hook joint at the connecting rod, thereby fix the horizontal process drag hook through the hasp again and install the horizontal process drag hook to free arm afterwards, thereby make medical staff be connected with adjustable free arm through horizontal process drag hook tail end when performing the operation to the patient, replace assistant's operation, can provide continuously and stable tractive force and control power, avoid unhook or vertebral plate fracture, the art person can be according to patient's position simultaneously, the size and the free arm of regulation of operation position change freedom in the operation, its is easy and simple to handle.
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 the present invention;
FIG. 2 is a schematic view of the transverse process retractor according to the present invention;
fig. 3 is a schematic exploded view of the mounting block structure of the present invention.
In the figure: 1. a transverse process draw hook; 101. a snap ring; 102. a bayonet; 2. a mounting seat; 201. a movable rod; 3. a limiting rod; 301. adjusting a rod; 4. a bolt; 5. mounting blocks; 501. an adjusting seat; 502. a rotating rod; 6. a free arm; 601. a bearing; 602. a connecting rod; 603. locking; 7. a rotating shaft; 8. a gear; 9. and a through hole.
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.
Example (b): as shown in fig. 1-3, an improved automatic transverse process retractor comprises a transverse process retractor 1 and a mounting base 2, wherein the transverse process retractor 1 and the mounting base 2 are arranged separately, and one side of the top of the transverse process retractor 1 is provided with a snap ring 101;
the transverse process drag hook 1 is arranged in an L shape, and the turning angle of the transverse process drag hook 1 is 150 degrees;
so that the transverse process drag hook 1 can be connected with the free arm 6 through the snap ring 101.
Specifically, please refer to fig. 1-2, through this design, through designing the bayonet 102 matched with the anatomical structure of the transverse process of the human body at the head end of the transverse process retractor 1, it is more in accordance with the human engineering mechanics, and rides on the transverse process just, it can not only fully retract the soft tissue to expose the operation visual field, but also can precisely position the pedicle of vertebral arch, the retractor body is designed to be "L" shape, the turning angle is 150 °, the transverse process retractor 1 is located in the transverse process because of its supporting point, and the operation visual field can be fully exposed without excessively peeling off the posterior soft tissue of the thoracic and lumbar vertebrae.
Specifically, please refer to fig. 1, through this kind of design, make medical staff accessible adjust pole 301 and rotate gag lever post 3, make gag lever post 3 relieve spacing to movable rod 201, thereby medical staff alright through pulling movable rod 201 adjust the height of transverse process drag hook 1 afterwards, adjust back rethread rotation regulation pole 301 that finishes, make gag lever post 3 carry out spacing fixed, ten minutes convenience to movable rod 201.
Specifically, referring to fig. 1 and 3, through the design, the medical staff can rotate the adjusting seat 501 through the rotating rod 502, so that the adjusting seat 501 rotates to drive the gear 8 to rotate, and the gear 8 rotates to drive the free arm 6 to move, thereby adjusting the horizontal position of the transverse process retractor 1.
Specifically, please refer to fig. 1 and 3, through this kind of design, make medical staff accessible upset free arm 6, thereby make free arm 6 rotate under the effect of pivot 7 through installation piece 5, thereby make free arm 6 drive transverse process drag hook 1 after rotating and incline, thereby make transverse process drag hook 1 and patient's operation position department form certain inclination, very convenience, and mesh so that the user rotates bull stick 502 and drives gear 8 and rotate through free arm 6 and gear 8, thereby gear 8 rotates and drives free arm 6 and removes.
Specifically, with reference to fig. 1-2, with this design, since the tail end of the transverse process retractor 1 is 2 "8" shaped clasps 101, the lock 603 enters from the large ring of the clasps 101, and then locks in the small ring of the clasps 101, so as to mount the transverse process retractor 1 on the free arm 6, so that the medical staff can connect with the adjustable free arm 6 through the tail end of the transverse process retractor 1 when performing surgery on a patient, instead of assistant operation, providing continuous and stable pulling force and holding force, and avoiding unhooking or vertebral plate fracture.
The working principle is as follows: firstly, because the tail end of the transverse process drag hook 1 is 2 '8' -shaped snap rings 101, the lock catch 603 enters from the large ring of the snap ring 101, and then is locked in the small ring of the snap ring 101, thereby the transverse process drag hook 1 is installed on the free arm 6, so that when a medical staff operates on a patient, the tail end of the transverse process drag hook 1 is connected with the adjustable free arm 6, the assistant operation is replaced, continuous and stable traction force and holding force can be provided, unhooking or vertebral plate fracture is avoided, meanwhile, an operator can freely and flexibly adjust the free arm 6 in the operation according to the body position, body shape and operation position of the patient, the operation is simple and convenient, meanwhile, the bayonet 102 matched with the anatomical structure of the transverse process of the human body is designed at the head end of the transverse process drag hook 1, the operation is more accordant with the human engineering mechanics, the transverse process can be ridden right on the transverse process, the soft tissue can be fully retracted to expose the operation visual field, the accurate positioning can also be realized, the drag hook body is designed to be 'L', the turning angle is 150 degrees, the transverse process drag hook 1 is located the transverse process because of its supporting point, need not excessively to strip to the chest lumbar vertebrae back way soft tissue and can fully show the operation field of vision, reduce the collateral damage to the bringing of soft tissue simultaneously, can use the median approach, can be used to the paravertebral muscle clearance approach again, so the supporting point is located the drag hook of transverse process and can not receive the influence in use to when transverse process drag hook 1 acts on the transverse process, can be according to this anatomical feature pinpoint the pedicle of vertebral arch, thereby the implantation of aspect pedicle of vertebral arch screw, also do not influence operations such as relevant decompression fusion simultaneously.
Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides an automatic transverse process drag hook of improvement formula, includes transverse process drag hook (1) and mount pad (2), its characterized in that: the transverse process drag hook (1) and the mounting seat (2) are arranged in a split mode, and a clamping ring (101) is arranged on one side of the top of the transverse process drag hook (1);
the transverse process drag hook (1) is arranged in an L shape, and the turning angle of the transverse process drag hook (1) is 150 degrees;
so that the transverse process drag hook (1) can be connected with the free arm (6) through the snap ring (101).
2. The improved automatic transverse process retractor according to claim 1, wherein: the top of mount pad (2) is run through and is had movable rod (201), the one end of horizontal process drag hook (1) is provided with bayonet socket (102), snap ring (101) are provided with two, just snap ring (101) all are "8" style of calligraphy and set up.
3. The improved automatic transverse process retractor according to claim 2, wherein: limiting rod (3) are installed to one side of mount pad (2), regulation pole (301) have been run through to the inside of limiting rod (3), the surface of movable rod (201) is provided with bolt (4).
4. The improved automatic transverse process retractor according to claim 3, wherein: the top of movable rod (201) is fixed with installation piece (5) through pivot (7), through-hole (9) have been seted up to one side of installation piece (5), the internally mounted of through-hole (9) has gear (8), the inside of through-hole (9) is provided with free arm (6), the top of installation piece (5) is provided with adjusts seat (501).
5. The improved automatic transverse process retractor according to claim 4, wherein: the installation piece (5) rotates with movable rod (201) through pivot (7) and is connected, adjust the top of seat (501) and gear (8) and be connected, the surface mounting who adjusts seat (501) has bull stick (502), just free arm (6) and gear (8) mesh mutually.
6. The improved automatic transverse process retractor according to claim 4, wherein: bearing (601) are installed to top one side of free arm (6), the internally mounted of bearing (601) has connecting rod (602), the top of connecting rod (602) is provided with hasp (603), hasp (603) are through snap ring (101) and horizontal process drag hook (1) looks joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121514973.9U CN215688131U (en) | 2021-07-05 | 2021-07-05 | Improved automatic transverse process drag hook |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121514973.9U CN215688131U (en) | 2021-07-05 | 2021-07-05 | Improved automatic transverse process drag hook |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215688131U true CN215688131U (en) | 2022-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121514973.9U Active CN215688131U (en) | 2021-07-05 | 2021-07-05 | Improved automatic transverse process drag hook |
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| Country | Link |
|---|---|
| CN (1) | CN215688131U (en) |
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2021
- 2021-07-05 CN CN202121514973.9U patent/CN215688131U/en active Active
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