CN113456165B - Angle-variable rongeur used under spinal endoscope - Google Patents
Angle-variable rongeur used under spinal endoscope Download PDFInfo
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- CN113456165B CN113456165B CN202110917422.5A CN202110917422A CN113456165B CN 113456165 B CN113456165 B CN 113456165B CN 202110917422 A CN202110917422 A CN 202110917422A CN 113456165 B CN113456165 B CN 113456165B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1604—Chisels; Rongeurs; Punches; Stamps
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1662—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body
- A61B17/1671—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the spine
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B17/2909—Handles
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/70—Cleaning devices specially adapted for surgical instruments
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
- A61B2017/00867—Material properties shape memory effect
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B2017/2926—Details of heads or jaws
Abstract
The invention provides a rongeur with a variable angle used under a spinal endoscope, which comprises: decide the pincers pole, adjust the pole, move the pincers pole, decide the pincers mouth, move the pincers mouth, decide the pincers handle and move the pincers handle. The front end of the fixed clamp rod is hinged with the fixed clamp mouth; the front end of the adjusting rod is movably connected with the fixed jaw, and when the adjusting rod pushes and pulls the fixed jaw, the fixed jaw rotates around a hinged shaft of the fixed jaw; the front end of the movable clamp rod is fixedly connected with the movable clamp mouth, and an elastic bending part is formed near the front end of the movable clamp rod; the movable clamp mouth is connected with the fixed clamp mouth in a sliding mode, and when the movable clamp rod pushes and pulls the clamp mouth, the movable clamp mouth slides relative to the fixed clamp mouth. The rear end of the fixed clamp rod is fixedly connected with the fixed clamp handle; the rear end of the movable clamp rod is movably connected with the movable clamp handle; the fixed clamp handle is hinged with the movable clamp handle, and when the movable clamp handle rotates, the movable clamp handle drives the movable clamp rod to move forward or backward. The rongeur solves the problem that vertebral plate rongeur under a spinal endoscope in the prior art is poor in flexibility due to the limitation of the structure and the caliber of the spinal endoscope, and can be adapted to spinal endoscopes of various specifications.
Description
Technical Field
The invention relates to a medical instrument used in orthopedic surgery, in particular to a variable-angle rongeur used under a spinal endoscope.
Background
In spinal surgery, such as laminectomy, discectomy, spinal decompression, and the like, a surgical instrument known as a rongeur is commonly used to bite down dead bone or to trim bone stumps. Fig. 1 is a schematic view showing a prior art rongeur. As shown in fig. 1, a conventional rongeur 100' includes a fixed clamp rod 1, a movable clamp rod 3, a fixed clamp handle 4, a movable clamp handle 5, a fixed clamp mouth 6 and a movable clamp mouth 7, wherein the fixed clamp mouth 6 is formed at the front end of the fixed clamp rod 1, and the fixed clamp handle 4 is fixedly connected to the rear end of the fixed clamp rod 1; the front end of the movable clamp rod 3 is provided with a movable clamp mouth 7, and the rear end of the movable clamp rod 3 is movably connected with a movable clamp handle 5; and the fixed jaw handle 4 and the movable jaw handle 5 are hinged together. In spinal surgery, when the movable clamp handle 5 is folded relative to the fixed clamp handle 4, the movable clamp handle 5 pushes the movable clamp rod 3 to move forwards relative to the fixed clamp rod 1, so that the movable clamp mouth 7 is close to the fixed clamp mouth 6 to be occluded, and dead bones on the vertebral plate 200 are bitten. The ends of the movable clamp mouth 7 and/or the fixed clamp mouth 6 are sharp edges, and when the movable clamp mouth 7 is further engaged with the fixed clamp mouth 6, dead bones on the vertebral plate 200 can be cut off.
Spinal surgery evolved to the present day with minimally invasive spinal surgery. The minimally invasive spine surgery refers to that a surgical instrument reaches a lesion position through a tiny incision or a puncture channel on a patient under the guidance and monitoring of an image instrument to perform surgery. Compared with the traditional spine operation, the spine minimally invasive operation has the advantages of small operation wound, small tissue wound, high operation accuracy and quick postoperative recovery. Among them, the spinal endoscopic technique has become one of the mature spinal minimally invasive techniques for treating lumbar disc herniation, opening a wide door for spinal surgery.
Fig. 2 is a schematic view showing a rongeur used under a spinal endoscope in the related art. As shown in fig. 2, the rongeur used under the existing spinal endoscope has basically the same structure as the conventional rongeur. In operation, the endoscope 300 reaches the lesion through a tiny incision or puncture channel, wherein the head of the endoscope 300 is provided with a light source 310 and a camera 320, and the image of the lesion acquired by the camera 320 is transmitted to a monitor through a cable 330. The fixed jaw 6 and the movable jaw 7 of the rongeur 100 'pass through the endoscope 300 to reach the lesion, and the operator controls the operation of the rongeur 100' by observing an image on a monitor connected to the endoscope 300.
However, the presence of the endoscope 300 may limit the operation of the conventional rongeur 100 ' such that the jaw of the rongeur 100 ' may not reach some specific lesion in some cases, thereby affecting the free use of the rongeur 100 '.
Disclosure of Invention
The invention is made to solve the technical problems, and aims to provide an angle-variable rongeur used under a spinal endoscope, so as to solve the problem that the flexibility of a vertebral plate rongeur under the spinal endoscope in the prior art is poor due to the limitation of the structure of the vertebral plate rongeur and the caliber of the spinal endoscope.
In order to achieve the above object, the present invention provides a variable angle rongeur for use under a spinal endoscope, comprising: the fixed clamp device comprises a fixed clamp rod, an adjusting rod, a movable clamp rod, a fixed clamp mouth and a movable clamp mouth, wherein the front end of the fixed clamp rod is hinged with the fixed clamp mouth; the front end of the adjusting rod is movably connected with the fixed clamp mouth, so that when the adjusting rod pushes and pulls the fixed clamp mouth, the fixed clamp mouth rotates around a hinged shaft of the fixed clamp mouth and the fixed clamp rod; the front end of the movable clamp rod is fixedly connected with the movable clamp mouth, and an elastic bending part is formed near the front end of the movable clamp rod; and the movable clamp mouth is connected with the fixed clamp mouth in a sliding mode, and when the movable clamp rod pushes and pulls the movable clamp mouth, the movable clamp mouth slides relative to the fixed clamp mouth.
Furthermore, the angle-variable rongeur used under the spinal endoscope can also comprise a fixed forceps handle and a movable forceps handle, wherein the rear end of the fixed forceps rod is fixedly connected with the fixed forceps handle; the rear end of the movable clamp rod is movably connected with the movable clamp handle; the fixed clamp handle is hinged with the movable clamp handle, and when the movable clamp handle rotates relative to the fixed clamp handle to close or separate, the movable clamp handle drives the movable clamp rod to move forwards or backwards.
Preferably, in the angle-variable rongeur for use under a spinal endoscope of the present invention, the fixed forceps mouth may be provided with a sliding guide groove, and the movable forceps mouth may be provided with a sliding guide block slidably inserted into the sliding guide groove, so that the movable forceps mouth can slide relative to the fixed forceps mouth while preventing a relative position therebetween from being shifted.
Preferably, in the variable angle rongeur for use under a spinal endoscope according to the present invention, the elastically bendable portion of the movable jaw lever may be made of an elastic material, or grooves may be formed on a surface of the elastically bendable portion, or the elastically bendable portion itself may be a thin plate, so that it is easily elastically bendable. When the fixed clamp mouth rotates relative to the fixed clamp rod, the movable clamp rod can be bent in an adaptive manner gradually, so that the movable clamp mouth can still slide relative to the fixed clamp mouth.
Preferably, the fixed jaw lever and the adjusting lever may have a circular tube shape, and the adjusting lever may be inserted into the fixed jaw lever and the movable jaw lever may be inserted into the adjusting lever. This arrangement saves space and makes the rongeur of the present invention convenient for use under an endoscope.
Preferably, in the variable-angle rongeur used under the spinal endoscope, the fixed clamp rod can be provided with a cleaning nozzle, and cleaning liquid can be filled into the fixed clamp rod through the cleaning nozzle. The cleaning nozzle can be externally connected with a washing pipe, and after the operation is finished, the residual blood stain in the fixed clamp rod can be washed by the cleaning liquid through the cleaning nozzle.
Further, in the angle-variable rongeur for use under a spinal endoscope of the present invention, an adjustment lever driving device may be provided at a rear end of the adjustment lever, and the adjustment lever driving device may be fixedly provided with respect to the fixed forceps lever. The adjusting rod driving device can drive the adjusting rod to move forward or backward, so that the fixed jaw rotates around a hinged shaft of the fixed jaw and the fixed jaw rod.
Preferably, the adjusting rod driving device may include a nut limiting frame and an adjusting nut, the nut limiting frame is fixedly disposed between the fixed clamp rod and the fixed clamp handle, and the adjusting nut is accommodated in the nut limiting frame; the rear end of the adjusting rod is provided with threads, the adjusting rod penetrates through one side frame wall of the nut limiting frame to enter the nut limiting frame, penetrates through the adjusting nut, is meshed with the adjusting nut through the threads, and penetrates through the opposite side frame wall of the nut limiting frame.
Preferably, in the angle-variable rongeur for use under a spinal endoscope of the present invention, a return spring is sleeved at a distal end of the movable clamp rod, one end of the return spring is limited by a joint of the nut limit frame and the fixed clamp handle, and the other end of the return spring is limited by a joint of the movable clamp rod and the movable clamp handle. The arrangement of the reset spring can automatically separate the movable clamp handle from the fixed clamp handle after the hand is loosened, thereby facilitating the operation of the rongeur.
From the above description and practice, it can be known that the angle of the forceps head can be changed when the angle-variable rongeur used under the spinal endoscope is used, so that the forceps head can reach the part which is difficult to reach due to the limitation of the endoscope, and the problem that the vertebral plate rongeur under the spinal endoscope in the prior art is poor in flexibility due to the limitation of the structure of the vertebral plate rongeur and the caliber of the spinal endoscope is solved.
In addition, the movable forceps mouth and the fixed forceps mouth of the variable-angle rongeur used under the spinal endoscope can be tightly matched, so that the cutting edge of the fixed forceps mouth can be accurately aligned with the cutting edge of the fixed forceps mouth, and a good biting and cutting effect is realized.
In addition, the angle-variable rongeur used under the spinal endoscope is provided with the cleaning nozzle, the cleaning nozzle can be externally connected with a washing tube, and blood stain remained in the tube-shaped fixed forceps rod can be washed conveniently after the operation is finished.
In addition, the angle-variable rongeur used under the spinal endoscope can be adapted to the spinal endoscopes with various specifications.
Drawings
FIG. 1 is a schematic view showing a prior art rongeur;
FIG. 2 is a schematic view showing a rongeur used under a spinal endoscope in the prior art;
FIG. 3 is a schematic view illustrating the principle of a variable angle rongeur for use under a spinal endoscope in accordance with the present invention;
FIG. 4 is a perspective view showing the external configuration of a variable angle rongeur for use under a spinal endoscope in accordance with one embodiment of the present invention;
FIG. 5 is an exploded perspective view showing the arrangement of the components of the variable angle rongeur used under the spinal endoscope shown in FIG. 4;
FIG. 6 shows an enlarged view of section A of FIG. 5;
FIG. 7 is a sectional view showing the internal structure of a variable angle rongeur for use under the spinal endoscope shown in FIG. 4;
FIG. 8 shows an enlarged view of portion B of FIG. 7; and
fig. 9 and 10 are perspective views illustrating a first use state and a second use state of the variable angle rongeur for use under the spinal endoscope shown in fig. 4.
Wherein the reference numerals are as follows:
100' existing rongeur; 200. a vertebral plate;
300. an endoscope; 310. a light source; 320. a camera; 330. a cable;
100. the invention relates to a bone rongeur with variable angles;
1. a fixed clamp rod; 11. a first limiting part; 111. a first limiting hole;
2. adjusting a rod; 21. a second limiting part; 211. a second limiting hole; 22. an external thread; 23. adjusting the nut;
3. a movable clamp rod; 31. a return spring; 32. tail convex; 33. bendable part
4. A fixed clamp handle; 41. the front end of the fixed clamp handle; 411. an accommodating portion;
5. a movable clamp handle; 51. a card slot;
6. fixing a clamp mouth; 61. a third limiting part; 611. a third limiting hole; 612. a fourth limiting hole; 62. a chute; 63. a sliding guide groove; 64. a cutting edge of the fixed jaw; 65. a fixed clamp mouth accommodating cavity;
7. moving the clamp mouth; 71. a sliding guide block; 72. a mouth cutting edge of the movable clamp; 73. the movable clamp mouth accommodating cavity;
8. an adjusting lever driving device; 81. a nut limit frame; 82. a return spring limit tube;
9. and cleaning the nozzle.
Detailed Description
An embodiment of a variable angle rongeur for use under a spinal endoscope in accordance with the present invention will be described with reference to the accompanying drawings. Those of ordinary skill in the art will recognize that the described embodiments can be modified in various different ways, without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims. In the present specification and drawings, like reference numerals denote like parts.
Fig. 3 is a schematic view showing the principle of the variable angle rongeur used under the spinal endoscope according to the present invention. As shown in fig. 3, the variable angle rongeur 100 for use under a spinal endoscope according to the present invention includes a fixed jaw lever 1, an adjustment lever 2, a movable jaw lever 3, a fixed jaw 6, and a movable jaw 7.
The front end of the fixed clamp rod 1 is hinged with the fixed clamp mouth 6, so that the fixed clamp mouth 6 can rotate around the hinged shaft of the fixed clamp rod 1.
The front end of the adjusting rod 2 is movably connected with the fixed nipper 6. That is, the adjusting lever 2 and the stationary jaw 6 are coupled together, and the stationary jaw 6 is rotatable and slightly translatable with respect to the adjusting lever 2. Thus, when the adjusting rod 2 pushes and pulls the fixed jaw 6, the fixed jaw 6 can rotate around the hinge axis with the fixed jaw rod 1.
The movable clamp rod 3 has a distal end fixedly connected to the movable clamp mouth 7, and an elastically bendable portion 33 is formed near the distal end of the movable clamp rod 3. Specifically, the elastically bendable portion 33 of the movable clamp lever 3 may be made of an elastic material, such as memory alloy; or may be formed with grooves on the surface thereof so as to be easily elastically bent.
The movable jaw 7 is slidably connected with the fixed jaw 6. When the movable clamp rod 3 pushes and pulls the clamp mouth 7, the movable clamp mouth 7 slides relative to the fixed clamp mouth 6. Specifically, the fixed nipper jaw 6 may be provided with a slide guide groove, and the movable nipper jaw 7 may be provided with a slide guide block slidably inserted into the slide guide groove. Thus, the fixed jaw 6 and the movable jaw 7 can be opened and closed through relative sliding, so that the vertebral plate dead bone can be bitten and cut off. Obviously, the fixed jaw 6 may be provided with a sliding guide block, and the movable jaw 7 may be provided with a sliding guide groove.
In addition, although not shown in fig. 3, the variable angle rongeur for use under a spinal endoscope according to the present invention may further include a fixed jaw 4 and a movable jaw 5. Wherein, the rear end of the fixed clamp rod 1 is fixedly connected with the fixed clamp handle 4; the rear end of the movable clamp rod 3 is movably connected with a movable clamp handle 4, and the fixed clamp handle 4 is hinged with a movable clamp handle 5. Thus, when the movable clamp handle 5 rotates relative to the fixed clamp handle 4 to close or open, the movable clamp handle 5 can drive the movable clamp rod 3 to move forward or backward, so that the movable clamp mouth 7 is driven to open or close relative to the fixed clamp mouth 6.
Further, although not shown in fig. 3, in the variable-angle rongeur for use under a spinal endoscope according to the present invention, the rear end of the adjustment lever 2 may be provided with an adjustment lever driving means which is fixedly provided with respect to the fixed jaw lever 1 and which can drive the adjustment lever 2 forward or backward leg, thereby rotating the fixed jaw 6 about its hinge axis with the fixed jaw lever 1.
As can be seen from the above description and illustration, the angle of the jaw head formed by the fixed jaw and the movable jaw can be flexibly changed when the angle-variable rongeur used under the spinal endoscope is used, so that the inconvenience caused by the endoscope is overcome. When the spine endoscope is used for operation, the angle of the forceps head is rotated, so that the forceps mouth of the rongeur can reach a special pathological change part which is difficult to reach usually, and the spine surgical operation can be smoothly completed.
The variable angle rongeur for use under a spinal endoscope according to the present invention will be described and illustrated in further detail with reference to specific embodiments.
FIG. 4 is a perspective view showing the external configuration of a variable angle rongeur for use under a spinal endoscope in accordance with one embodiment of the present invention; FIG. 5 is an exploded perspective view showing the arrangement of the components of the variable angle rongeur used under the spinal endoscope shown in FIG. 4; FIG. 6 shows an enlarged view of portion A of FIG. 5; FIG. 7 is a sectional view showing the internal structure of a variable angle rongeur for use under the spinal endoscope shown in FIG. 4; fig. 8 shows an enlarged view of a portion B in fig. 7.
As shown in fig. 4 to 8, a variable angle rongeur 100 for use under a spinal endoscope according to an embodiment of the present invention includes a fixed jaw lever 1, an adjustment lever 2, a movable jaw lever 3, a fixed jaw 6, and a movable jaw 7.
The stationary caliper bar 1 and the adjusting lever 2 have a circular tube shape, and the adjusting lever 2 is movably inserted into the stationary caliper bar 1, and the movable caliper bar 3 is movably inserted into the adjusting lever 2.
The front end of the fixed clamp rod 1 is hinged with the fixed clamp mouth 6, so that the fixed clamp mouth 6 can rotate around the hinged shaft of the fixed clamp rod 1. The front end of the adjusting rod 2 is movably connected with the fixed nipper 6. That is, the adjusting lever 2 and the stationary jaw 6 are coupled together, and the stationary jaw 6 is rotatable and slightly translatable with respect to the adjusting lever 2.
Specifically, as shown in fig. 6 and 8, in the variable-angle rongeur for use under a spinal endoscope according to an embodiment of the present invention, a first position-limiting portion 11 is disposed at a front end of a fixed clamp rod 1, and a first position-limiting hole 111 is disposed on the first position-limiting portion 11. The front end of the adjusting rod 2 is provided with a second limiting part 21, and the second limiting part 21 is provided with a second limiting hole 211. The rear end of the fixed jaw mouth 6 is provided with an inverted-U-shaped third limiting part 61, and the third limiting part 61 is provided with a third limiting hole 611 and a fourth limiting hole 612.
The first limiting part 11 on the fixed jaw rod 1 is hinged with the third limiting part 61 on the fixed jaw 6 through the first limiting hole 111 and the third limiting hole 611 on the fixed jaw.
The second limit part 21 on the adjusting rod 2 is movably connected with the third limit part 61 on the fixed jaw 6 through the second limit hole 211 and the fourth limit hole 612.
Thus, when the adjusting rod 2 pushes and pulls the fixed jaw 6, the fixed jaw 6 can rotate around the hinge axis with the fixed jaw rod 1.
As shown in fig. 6 and 8, the distal end of the movable clamp lever 3 is fixedly connected to the lower end surface of the movable clamp mouth 7, and an elastically bendable portion 33 is formed near the distal end of the movable clamp lever 3. Specifically, the elastically bendable portion 33 of the movable clamp lever 3 may be made of an elastic material, such as memory alloy; alternatively, the surface of the elastically bendable portion 33 is formed with grooves or the elastically bendable portion 33 itself is a thin plate, thereby making it easy to be elastically bent. When the fixed clamp mouth 6 rotates relative to the fixed clamp rod 1, the movable clamp rod 3 is gradually subjected to adaptive bending, so that the movable clamp mouth 7 can still slide relative to the fixed clamp mouth 6.
The movable jaw 7 is slidably connected with the fixed jaw 6. When the movable clamp rod 3 pushes and pulls the clamp mouth 7, the movable clamp mouth 7 slides relative to the fixed clamp mouth 6.
Specifically, as shown in fig. 6, the upper end surface of the fixed beak 6 may be provided with a slide guide groove 63, and the lower end surface of the movable beak 7 may be provided with a slide guide block 71, and the slide guide block 71 is slidably fitted into the slide guide groove 63, so that the movable beak 7 can slide with respect to the fixed beak 6 while preventing the relative positions of the movable beak 7 and the fixed beak 6 from being shifted.
In addition, the upper end surface of the fixed jaw 6 is also provided with a sliding groove 62. The front end of the movable clamp rod 3 can be accommodated in the slide groove 62. Thus, the fixed jaw 6 and the movable jaw 7 can be opened and closed through relative sliding, so that the vertebral plate dead bone can be bitten and cut off. Obviously, the fixed jaw 6 may be provided with a sliding guide block, and the movable jaw 7 may be provided with a sliding guide groove.
As shown in fig. 6 and 8, the front end of the fixed jaw 6 is provided with an arc-shaped fixed jaw cutting edge 64, and a fixed jaw housing chamber 65 is provided inside the fixed jaw cutting edge 64. The front end of the movable clamp mouth 7 is provided with an arc-shaped movable clamp mouth cutting edge 72, and the inner side of the movable clamp mouth cutting edge 72 is provided with a movable clamp mouth accommodating cavity 73. The cutting edge 64 of the fixed clamp mouth is opposite to the cutting edge 72 of the movable clamp mouth, and when the movable clamp rod 3 drives the movable clamp mouth 7 to move forwards, the cutting edge 72 of the movable clamp mouth is close to the cutting edge 64 of the fixed clamp mouth, so that the vertebral plate dead bone is resected. The cut crushed bone can enter the closed space formed by the fixed jaw accommodating chamber 65 and the movable jaw accommodating chamber 73. When the movable clamp rod 3 drives the movable clamp nozzle 7 to move backwards, the fixed clamp nozzle accommodating cavity 65 is separated from the movable clamp nozzle accommodating cavity 73, and broken bones in the fixed clamp nozzle accommodating cavity can be taken out.
The sliding guide groove 63 on the fixed jaw mouth 6 and the sliding guide block 71 on the movable jaw mouth 7 are tightly matched, so that the relative position of the fixed jaw mouth 7 and the fixed jaw mouth 6 can be prevented from being deviated, the accurate alignment of the cutting edge 64 of the fixed jaw mouth and the cutting edge 72 of the movable jaw mouth can be ensured, and a good biting and cutting effect can be realized.
As shown in fig. 4 to 8, the variable angle rongeur 100 for use under a spinal endoscope according to this embodiment of the present invention further includes a fixed jaw lever 4 and a movable jaw lever 5.
The rear end of the fixed clamp rod 1 is fixedly connected with the fixed clamp handle 4; the rear end of the movable clamp rod 3 is movably connected with a movable clamp handle 5, and the fixed clamp handle 4 is hinged with the movable clamp handle 5 through a pin. Thus, when the movable clamp handle 5 rotates relative to the fixed clamp handle 4 to close or separate, the movable clamp handle 5 can drive the movable clamp rod 3 to move forward or backward, and the movable clamp nozzle 7 is driven to slide and open relative to the fixed clamp nozzle 6.
An adjusting lever driving device 8 may be provided at the rear end of the adjusting lever 2, and the adjusting lever driving device 8 may be fixedly provided with respect to the stationary blade 1. The adjusting lever driving means 8 can drive the adjusting lever 2 to advance or the rear leg, thereby rotating the stationary jaw 6 about its hinge axis with the stationary jaw lever 1.
Specifically, the adjusting lever driving device 8 may include a nut limit frame 81 and an adjusting nut 23, the nut limit frame 81 is fixedly disposed between the fixed jaw lever 1 and the fixed jaw handle 4, and the adjusting nut 23 is accommodated in the nut limit frame 81.
The adjusting rod 2 has an external thread 22 at the rear end, and the adjusting rod 2 passes through one side frame wall of the nut limiting frame 81 from the tubular fixed clamp rod 1, enters the nut limiting frame 81, passes through the adjusting nut 23 in the nut limiting frame 81, is engaged with the adjusting nut 23 through the external thread 22, passes through the opposite side frame wall of the nut limiting frame 81 from the nut limiting frame 81, and enters the accommodating part 411 arranged at the front end 41 of the fixed clamp handle.
When the adjusting nut 23 is rotated, the engagement of the adjusting nut 23 with the external thread 22 on the adjusting lever 2 causes the adjusting lever 2 to move forward and backward, thereby rotating the stationary jaw 6 relative to the stationary jaw bar 1.
In addition, the front end of the movable clamp handle 5 is provided with a clamping groove 51, the rear end of the movable clamp rod 3 is provided with a tail projection 32, and the tail projection 32 of the movable clamp rod 3 is embedded into the clamping groove 51 of the movable clamp handle 5, so that the rear end of the movable clamp rod 3 is movably connected with the movable clamp handle 5. When the movable clamp handle 5 rotates relative to the fixed clamp handle 4, the clamp rod 3 can be pushed and pulled to move back and forth.
In addition, as described above, one end of the nut stopper frame 81 is fixedly connected to the stationary caliper bar 1. Preferably, the opposite end of the end may be provided with a return spring limiting tube 82, and the return spring limiting tube 82 may be fixedly received in the receiving portion 411 of the front end 41 of the stationary jaw lever. Of course, the return spring limit tube 82 is not necessary, and the opposite end of the nut limit frame 81 may be directly fixedly connected to the front end 41 of the stationary caliper handle.
The tail end of the movable clamp rod 3 can be sleeved with a return spring 31, one end of the return spring 31 is limited by the joint of the nut limiting frame 81 and the fixed clamp handle 4 (namely a return spring limiting pipe 82), and the other end of the return spring 31 is limited by the joint of the movable clamp rod 3 and the movable clamp handle 5 (namely a tail projection 32 of the movable clamp rod 3). When the movable clamp handle 5 is folded towards the fixed clamp handle 4, the movable clamp mouth 7 is occluded with the fixed clamp mouth 6, so that the vertebral plate dead bone is cut off, and the return spring 31 is compressed. After the dead bone is cut, when the movable clamp handle 5 is loosened, the return spring 31 is restored to the original position, the movable clamp handle 5 is automatically separated from the fixed clamp handle 4, so that the movable clamp mouth 7 is automatically separated from the fixed clamp mouth 6, and the bitten bone is released. Of course, the return spring 31 may be provided between the stationary jaw lever 5 and the stationary jaw lever 4.
Furthermore, the stationary jaw lever 1 can be provided with a cleaning nozzle 9, through which cleaning fluid can be poured into the stationary jaw lever 1. It should be noted that in fig. 4 and 5, the cleaning nozzle 9 is provided on the nut limit frame 81, however, a portion of the nut limit frame 81 where the cleaning nozzle 9 is provided may be regarded as a portion of the clincher lever 1. The cleaning nozzle 9 can be externally connected with a washing pipe, and after the operation is finished, the residual blood stain in the fixed clamp rod 1 can be washed by the cleaning liquid through the cleaning nozzle 9.
Fig. 9 and 10 are perspective views illustrating a first use state and a second use state of the variable angle rongeur for use under the spinal endoscope shown in fig. 4.
When the angle-variable rongeur 100 provided by the invention is used for biting vertebral plate dead bones under a spinal endoscope, when a binding clip formed by the fixed jaw 6 and the movable jaw 7 cannot reach a position required to reach due to the limitation of the endoscope, as shown in fig. 9, when the adjusting nut 23 can be rotated, the adjusting rod 2 can be moved back and forth by the meshing action of the adjusting nut 23 and the external thread 22 on the adjusting rod 2, so that the fixed jaw 6 rotates relative to the fixed jaw rod 1. After the fixed clamp mouth 6 rotates to a proper angle, as shown in fig. 10, the movable clamp handle 5 can be closed towards the fixed clamp handle 4, the movable clamp rod 3 is pushed to move forwards, the movable clamp mouth 7 is occluded with the fixed clamp mouth 6, and the vertebral plate dead bone to be cut off is cut off.
In the description of the present invention, the terms of orientation or positional relationship indicated above, below, front and back, left and right, inside and outside, and the like are based on the orientation or positional relationship shown in the drawings, and these terms are used only for convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
It will be understood by those skilled in the art that various modifications and combinations can be made to the variable angle rongeur for use with spinal endoscopy as set forth above without departing from the spirit of the invention. Therefore, the scope of the present invention should be determined by the contents of the appended claims.
Claims (4)
1. A rongeur used under a spinal endoscope, which comprises a fixed clamp rod, an adjusting rod, a movable clamp rod, a fixed clamp mouth and a movable clamp mouth,
the front end of the fixed clamp rod is hinged with the fixed clamp mouth;
the front end of the adjusting rod is movably connected with the fixed clamp mouth, so that when the adjusting rod pushes and pulls the fixed clamp mouth, the fixed clamp mouth rotates around a hinged shaft of the fixed clamp mouth and the fixed clamp rod;
the front end of the movable clamp rod is fixedly connected with the movable clamp mouth, and an elastic bending part is formed near the front end of the movable clamp rod;
the movable clamp mouth is connected with the fixed clamp mouth in a sliding mode, and when the movable clamp rod pushes and pulls the movable clamp mouth, the movable clamp mouth slides relative to the fixed clamp mouth;
wherein the fixed clamp rod and the adjusting rod are in a circular tube shape, the adjusting rod is inserted into the fixed clamp rod, the movable clamp rod is inserted into the adjusting rod,
the rongeur used under the spinal endoscope also comprises a fixed forceps handle and a movable forceps handle,
the rear end of the fixed clamp rod is fixedly connected with the fixed clamp handle;
the rear end of the movable clamp rod is movably connected with the movable clamp handle;
wherein the fixed clamp handle is hinged with the movable clamp handle, and when the movable clamp handle rotates relative to the fixed clamp handle to close or separate, the movable clamp handle drives the movable clamp rod to move forward or backward,
wherein the rear end of the adjusting rod is provided with an adjusting rod driving device which is fixedly arranged relative to the fixed clamp rod,
wherein the adjusting rod driving device comprises a nut limiting frame and an adjusting nut, the nut limiting frame is fixedly arranged between the fixed clamp rod and the fixed clamp handle, the adjusting nut is accommodated in the nut limiting frame,
wherein, the rear end of the adjusting rod is provided with a screw thread, the adjusting rod passes through one side frame wall of the nut limiting frame, enters the nut limiting frame, passes through the adjusting nut, is engaged with the adjusting nut through the screw thread and then passes through the opposite side frame wall of the nut limiting frame,
the tail end of the movable clamp rod is sleeved with a return spring, one end of the return spring is limited by the joint of the nut limiting frame and the fixed clamp handle, and the other end of the return spring is limited by the joint of the movable clamp rod and the movable clamp handle.
2. The rongeur for use under a spinal endoscope as claimed in claim 1, wherein a sliding guide groove is provided on the fixed forceps mouth, and a sliding guide block is provided on the movable forceps mouth, and the sliding guide block is slidably inserted into the sliding guide groove.
3. The rongeur for use under a spinal endoscope as claimed in claim 1, wherein the elastically bendable portion of the movable clamp lever is made of an elastic material, or grooves are formed on a surface of the elastically bendable portion, or the elastically bendable portion itself is a thin plate.
4. The rongeur for use under a spinal endoscope as recited in claim 1, wherein the fixed jaw lever is provided with a cleaning nozzle through which a cleaning solution can be poured into the fixed jaw lever.
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| CN202110917422.5A CN113456165B (en) | 2021-08-11 | 2021-08-11 | Angle-variable rongeur used under spinal endoscope |
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| CN202110917422.5A CN113456165B (en) | 2021-08-11 | 2021-08-11 | Angle-variable rongeur used under spinal endoscope |
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| CN114869409A (en) * | 2022-05-09 | 2022-08-09 | 青岛智兴医疗器械有限公司 | Spine endoscope angle-adjustable surgical forceps |
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| CN201337491Y (en) * | 2008-12-12 | 2009-11-04 | 徐威强 | Mandible angle bone rongeur |
| CN204520876U (en) * | 2015-04-16 | 2015-08-05 | 张庆国 | The direction-changeable rongeur of a kind of Wicresoft |
| CN106551715A (en) * | 2016-10-25 | 2017-04-05 | 河北医科大学第三医院 | A kind of universal laminectomy rongeur |
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| US4776752A (en) * | 1987-03-02 | 1988-10-11 | Davis Lynn M | Speed governed rotary device |
| CN103690222A (en) * | 2013-12-11 | 2014-04-02 | 上海理工大学 | Laparoscope operating forceps |
| CN204147091U (en) * | 2014-04-01 | 2015-02-11 | 雷东 | The medical occlusion basket pincers of a kind of rotary type |
| CN206080636U (en) * | 2016-07-12 | 2017-04-12 | 遵义医学院附属医院 | Vertebral plate bone rongeur of interlock angularly adjustable |
| CN108113730A (en) * | 2017-12-19 | 2018-06-05 | 王玲玲 | It is a kind of that there is the rongeur attracted with pre-washing function |
| CN109925024A (en) * | 2019-04-16 | 2019-06-25 | 北京东鸿致远医疗科技有限公司 | Adjustable-angle nucleus pulposus clamp |
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| CN201337491Y (en) * | 2008-12-12 | 2009-11-04 | 徐威强 | Mandible angle bone rongeur |
| CN204520876U (en) * | 2015-04-16 | 2015-08-05 | 张庆国 | The direction-changeable rongeur of a kind of Wicresoft |
| CN106551715A (en) * | 2016-10-25 | 2017-04-05 | 河北医科大学第三医院 | A kind of universal laminectomy rongeur |
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