CN111513806B - Accurate depth-limiting ring saw suit of formula percutaneous vertebral plate drilling is cut with inhaling to spine minimal access surgery - Google Patents
Accurate depth-limiting ring saw suit of formula percutaneous vertebral plate drilling is cut with inhaling to spine minimal access surgery Download PDFInfo
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- CN111513806B CN111513806B CN202010372444.3A CN202010372444A CN111513806B CN 111513806 B CN111513806 B CN 111513806B CN 202010372444 A CN202010372444 A CN 202010372444A CN 111513806 B CN111513806 B CN 111513806B
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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
- A61B17/14—Surgical saws ; Accessories therefor
- A61B17/147—Surgical saws ; Accessories therefor with circularly moving saw blades, i.e. non-reciprocating saw blades
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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
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
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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
- A61B2017/00017—Electrical control of 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
- A61B2017/00535—Surgical instruments, devices or methods, e.g. tourniquets pneumatically or hydraulically operated
- A61B2017/00561—Surgical instruments, devices or methods, e.g. tourniquets pneumatically or hydraulically operated creating a vacuum
- A61B2017/00566—Surgical instruments, devices or methods, e.g. tourniquets pneumatically or hydraulically operated creating a vacuum fixation of form upon application of vacuum
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2217/00—General characteristics of surgical instruments
- A61B2217/002—Auxiliary appliance
Abstract
The invention discloses a suction-cutting type percutaneous vertebral plate drilling accurate depth-limiting ring saw set for a spinal minimally invasive surgery, and belongs to the field of medical instruments. The invention provides a channel for further spinal vertebral canal operation, which is accurate, safe and efficient, changes the operation mode that the vertebral plate needs to be bitten by rongeur or ground by utilizing a spherical high-speed grinding drill in the traditional operation under X-ray perspective detection, avoids excessive excision injury to the vertebral plate and more radiation exposure of both sides of a doctor, reduces the interference and the injury to the peripheral soft tissues and the neural structures in the spinal vertebral canal, and has the advantages of convenient operation, time saving, science, high efficiency and good safety.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a suction-cutting type percutaneous vertebral plate drilling accurate depth-limiting ring saw suit for a spinal minimally invasive surgery.
Background
Surgical minimally invasive surgery is the mainstream direction of clinical medical development, and percutaneous minimally invasive technology is the main approach for realizing spinal surgery minimally invasive surgery. The minimally invasive spinal vertebral plate minimally invasive surgical instrument is used for achieving minimally invasive precision, targeted circular cutting and grinding of a vertebral plate from the back of a spine through skin soft tissue to achieve regular excision of a vertebral plate target position and drilling to establish a bone channel or partial excision to enlarge a vertebral plate gap, so that a surgical path is established for a subsequent intraspinal surgery in a wrong way, the minimally invasive spinal vertebral plate minimally invasive surgical instrument is a premise for achieving minimally invasive spinal intraductal lesion excision, and compared with the traditional open vertebral plate excision technology, the minimally invasive surgical instrument has the remarkable minimally invasive advantages of small trauma, low risk, high efficiency, quick recovery and the like. The defects that the traditional operation needs rongeur to bite and cut the vertebral plate or utilizes a spherical high-speed grinding drill to grind the vertebral plate under X-ray perspective monitoring, excessive excision damage to the vertebral plate is avoided, or more medical care parties need to be exposed by radiation to monitor the position of the nerve due to the fact that the spherical grinding drill protrudes into the vertebral canal to damage the nerve, the probability of channel establishment is high and irregular after the rongeur biting and cutting or the spherical grinding drill grind the vertebral plate, damage to tissue structures maintaining the stability of the vertebral column is serious, iatrogenic trauma is large, the operation efficiency is low, time consumption in the operation is long, postoperative recovery is slow, nerve damage risk caused by protruding into the vertebral canal is high, the vertebral column instability is caused due to excessive damage to soft tissues and bone structures, an internal fixing device is often needed to be added to rebuild the stability of the vertebral column, the loss of a motion segment is caused, the operation cost is high and the like are overcome.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a suction-cutting type percutaneous vertebral plate drilling accurate depth-limiting trepan suit for a spinal minimally invasive surgery, which has the following specific technical scheme:
a suction-cutting type percutaneous vertebral plate drilling accurate depth-limiting ring saw set for a spinal minimally invasive surgery comprises a depth-limiting ring saw, a limiting soft tissue opening sleeve, a depth-limiting grinding disc, a limiting buckle and a saw ring, wherein the limiting soft tissue opening sleeve is sleeved outside the depth-limiting ring saw and detachably connected with the depth-limiting ring saw;
the depth-limiting ring saw outside is equipped with the fine setting external screw thread, and spacing soft tissue struts the sleeve inboard and is equipped with the fine setting internal thread with fine setting external screw thread complex, and the limit for depth mill bottom side is equipped with the grinding board, and the grinding board bottom side is equipped with multiunit evenly distributed's grinding tooth, and the inner wall of depth-limiting ring saw is equipped with the negative pressure and attracts the hole, and the both ends opening in negative pressure attracts the hole sets up the inboard and the outside at the limit for depth ring saw respectively.
Preferably, the inner side of the depth-limiting ring saw is provided with a plurality of groups of chip grooves.
Preferably, a plurality of groups of chip removing holes are arranged on the grinding plate and positioned between the grinding teeth.
Preferably, the limiting buckle comprises a limiting ring and a plurality of groups of limiting blocks, wherein the limiting ring is sleeved at the top end of the depth limiting ring saw and the top end of the depth limiting grinding disc respectively, and the groups of limiting blocks are arranged on the outer side of the limiting ring.
Preferably, the limiting ring comprises two groups of limiting half rings, one ends of the two groups of limiting half rings are hinged with each other, the other ends of the two groups of limiting half rings are provided with fixing rods penetrating through the two groups of limiting half rings, one ends of the fixing rods are hinged with the limiting half rings, and the other ends of the fixing rods are provided with fixing handles hinged with the fixing rods.
Preferably, the outer side of the depth limiting ring saw is provided with a first precession scale, the outer side of the depth limiting grinding disc is provided with a second precession scale, and the outer side of the limiting soft tissue opening sleeve is provided with a third precession scale.
Preferably, the top end of the depth-limiting grinding disc is provided with a motor mounting head.
Preferably, the top end of the depth-limiting trepan is provided with a trepan handle detachably connected with the depth-limiting trepan.
Preferably, the inner diameter of the fixed thread, the inner diameter of the depth ring saw and the outer diameter of the depth limiting grinding disc are the same.
Preferably, the bottom side of the limiting soft tissue distraction sleeve is provided with anti-slip teeth.
The invention has the following beneficial effects:
in the invention, an operator utilizes the limiting soft tissue spreading sleeve to spread the soft tissues such as muscles on the outer side of the vertebral plate of the vertebral column and fix the limiting soft tissue spreading sleeve at the target position on the vertebral plate to avoid sliding, places the depth ring saw in the limiting soft tissue spreading sleeve and rotates the depth ring saw, so that the saw ring arranged at the bottom side of the depth ring saw rotates to annularly cut off the vertebral plate of the vertebral column. Simultaneously, the negative pressure suction hole arranged at the bottom end of the depth-limiting ring saw is communicated with the negative pressure suction hole before cutting off the vertebral column vertebral plate, so that negative pressure is generated inside the negative pressure suction hole and in an inner cavity of the depth-limiting ring saw and powder generated in the cutting process is adsorbed, the cut-off vertebral column plate is fixed in the inner cavity of the depth-limiting ring saw, the phenomenon that the cut-off vertebral column plate is pushed into the vertebral column vertebral tube to cause nerve clamping in the grinding process of the grinding disc is avoided, and the safety is high. And in the process of grinding the cut spinal vertebral plate column by the depth-limiting grinding disc, a large amount of vertebral plate column powder generated by grinding the depth-limiting grinding disc can be adsorbed by the negative pressure suction holes, so that the grinding efficiency of the depth-limiting grinding disc is improved.
Meanwhile, the fine-tuning internal thread arranged on the inner side of the limiting soft tissue opening sleeve is matched with the fine-tuning external thread arranged on the outer side of the depth-limiting ring saw, so that when an operator installs the depth-limiting ring saw in the limiting soft tissue opening sleeve and rotates the depth-limiting ring saw, the rotation speed and the precession depth of the depth-limiting ring saw can be accurately controlled and accurately adjusted, and meanwhile, the limiting buckle is matched with the thread connection to avoid the risk of neural structure damage in the vertebral canal caused by the fact that the depth-limiting ring saw is hung in the air when being installed in the limiting soft tissue opening sleeve to perform girth vertebral plate operation and the saw ring easily protrudes into the vertebral canal when breaking through the cortex of the inner layer of the vertebral canal.
Then, the operator connects the depth-limiting grinding disc with the rotating motor and places the depth-limiting grinding disc in the depth-limiting ring saw. The operator starts the rotating motor and drives the depth-limiting grinding disc to rotate, so that the grinding teeth grind the cut spinal vertebral plate block column in the inner cavity of the depth-limiting ring saw into powder, the cut spinal vertebral plate block column in the inner cavity of the depth-limiting ring saw is conveniently removed, and a hole or an enlarged channel is established on the spinal vertebral plate, and the subsequent operation of the operator is facilitated. Set up spacing buckle cooperation threaded connection in the limit for depth mill outside simultaneously and avoid limit for depth mill to install inside the limit for depth ring saw and when the operation of grinding ring cutting off vertebral plate post unsettled fall into and the mill break through vertebral lamina inlayer cortex when the canalis spinally easily the abrupt canalis spinalis and causes the neural structure damage risk in the vertebral canal.
The invention realizes accurate, targeted circular cutting and grinding of the percutaneous minimally invasive vertebral plate to realize regular excision of the target site of the vertebral plate and drilling to establish a bone channel or partial excision to enlarge the vertebral plate gap, thereby establishing a surgical path, opening up a channel for subsequent surgical operation, being convenient, accurate, safe and efficient to operate, avoiding excessive excision damage to the vertebral plate or more radiation exposure of medical and medical parties caused by preventing the spherical grinding drill bit from protruding into the vertebral canal to damage nerves, effectively protecting the structure in the vertebral canal from being damaged, and reducing the surgical risk.
The operation mode that the traditional operation needs rongeur to bite and cut the vertebral plate or utilizes a spherical high-speed grinding drill to grind the vertebral plate under X-ray perspective monitoring is changed, the problem that the spherical grinding drill protrudes into the vertebral canal to damage nerves, more radiation exposure is needed to monitor the position of the nerves, and the rongeur bites and cuts the vertebral plate or the spherical grinding drill grinds the vertebral plate to establish multiple irregular channels, the damage to the tissue structure maintaining the stability of the vertebral column is serious, the iatrogenic wound is large, the operation efficiency is low, the time consumption in the operation is long, the postoperative recovery is slow, the nerve damage risk caused by protruding into the vertebral canal is high, the instability of the vertebral column is caused by excessive damage to soft tissues and the bony structures, an internal fixing device is often needed to be added to rebuild the stability of the vertebral column, the loss of a motion segment is caused, the operation cost is high and the like is solved.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic structural view of a limiting soft tissue distracting sleeve of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
FIG. 5 is a cross-sectional view of the depth stop ring saw of the present invention;
FIG. 6 is a partial enlarged view of FIG. 5 at B;
FIG. 7 is an enlarged view of a portion of FIG. 5 at C;
FIG. 8 is a cross-sectional view of a depth-limiting abrasive disk of the present invention;
FIG. 9 is a bottom view of the depth limiting abrasive disk of the present invention;
FIG. 10 is a partial top view of the present invention;
FIG. 11 is an enlarged view of a portion of FIG. 10 at D;
FIG. 12 is an enlarged view of a portion of FIG. 10 at E;
FIG. 13 is a schematic view of the structure of the present invention in an initial state;
FIG. 14 is a schematic structural view of a depth stop ring saw of the present invention in a cutting state;
FIG. 15 is a schematic structural view of the depth-limiting grinding disc in an initial state according to the present invention;
FIG. 16 is a schematic structural view of the depth-limiting grinding disc during grinding according to the present invention;
fig. 17 is a schematic structural diagram of the depth-limiting grinding disc after the grinding is finished.
Fig. 18 is a schematic structural view of the depth-limiting grinding disc of the invention after being taken out.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
Examples
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "first", "second", and the like are used only for distinguishing the description, and are not intended to indicate or imply relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "communicating," "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 in specific cases to those skilled in the art.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Referring to fig. 1 to 17, the invention comprises a limiting soft tissue expanding sleeve 1 for expanding soft tissues such as muscles outside vertebral plates of a spine, a depth-limiting ring saw 2 which is arranged in the limiting soft tissue expanding sleeve 1 and is detachably connected with the limiting soft tissue expanding sleeve 1, a depth-limiting grinding disc 3 which is arranged in the depth-limiting ring saw 2 and is detachably connected with the depth-limiting ring saw 2, a limiting buckle 4 which is respectively sleeved at the top end of the depth-limiting ring saw 2 and the top end of the depth-limiting grinding disc 3, and a saw ring 5 which is arranged at the bottom side of the depth-limiting ring saw 2 and is used for girdling vertebral plates of the spine. According to the invention, the depth-limiting ring saw 2 and the depth-limiting grinding disc 3 are respectively in threaded connection with the limiting buckle 4, and the sliding deviation phenomenon of the limiting buckle 4 can not occur in the process of limiting and fixing the depth-limiting ring saw 2 and the depth-limiting grinding disc 3 through the self-locking function of the threads. Spacing soft tissue struts sleeve 1 and 2 threaded connection of limit for depth ring saw, and the screw specification between spacing soft tissue strut sleeve 1 and the limit for depth ring saw 2 is the same with the screw specification between limit for depth ring saw 2 and the spacing buckle 4, the external diameter of limit for depth ring saw 2 is the same with the internal diameter that spacing soft tissue struts sleeve 1, and the internal diameter of limit for depth ring saw 2 is the same with the external diameter of spacing mill, make spacing soft tissue strut sleeve 1, limit for depth ring saw 2 and spacing mill can closely cooperate and not produce the clearance and block in the cooperation use. And the materials adopted by the depth-limiting ring saw 2, the limiting soft tissue opening sleeve 1 and the depth-limiting grinding disc 3 are all medical stainless steel, so that the invention keeps quite hardness in the using process, is not easy to deform and break in the using and operating process and meets the medical industry standard.
Referring to fig. 1 to 7, the bottom side of the limiting soft tissue distraction sleeve 1 is provided with anti-slip teeth 9, and the anti-slip teeth 9 are used for fixing the limiting soft tissue distraction sleeve 1 on the vertebral plate and preventing the limiting soft tissue distraction sleeve 1 from sliding. The outer side of the depth-limiting ring saw 2 is provided with a fine-adjustment external thread 21, and the inner side of the limiting soft tissue distraction sleeve 1 is provided with a fine-adjustment internal thread 11 matched with the fine-adjustment external thread 21. According to the invention, through the matching of the fine-tuning internal thread 11 arranged on the inner side of the limiting soft tissue opening sleeve 1 and the fine-tuning external thread 21 arranged on the outer side of the depth-limiting ring saw 2 and the self-locking function of the threads, when an operator installs the depth-limiting ring saw 2 in the limiting soft tissue opening sleeve 1 and rotates the depth-limiting ring saw 2, the rotation speed and the screwing depth of the depth-limiting ring saw 2 can be accurately grasped and accurately adjusted, and meanwhile, the phenomenon that the depth-limiting ring saw 2 is suspended and falls into the vertebral canal when being installed in the limiting soft tissue opening sleeve 1 to carry out pressure propulsion rotary cutting and even protrudes into the vertebral canal to cause nerve injury risk is avoided.
Referring to fig. 8 to 9, the present invention further includes a saw ring 5 disposed at the bottom side of the depth-stop ring saw 2 and used for girdling vertebral lamina of the patient's spine, a grinding plate 6 disposed at the bottom side of the depth-stop grinding disc 3, and a plurality of grinding teeth 61 disposed at the bottom side of the grinding plate 6, wherein the saw ring 5 includes a plurality of oblique saw teeth uniformly distributed at the bottom end of the depth-stop ring saw 2, so as to improve the cutting efficiency of the saw ring 5 during the rotary cutting process. And a chip groove 23 is arranged at one end of the inner side of the depth-limiting ring saw 2 close to the saw ring 5. The chip removal grooves 23 are uniformly distributed on the inner side of the depth-limiting ring saw 2 and used for removing chips in the process of cutting the saw ring 5, so that the chips generated in the process of cutting the vertebral plate of the vertebral column by the saw ring 5 are prevented from blocking a cutting channel of the saw ring 5, and further the subsequent cutting is influenced. The grinding teeth 61 are evenly distributed on the bottom side of the grinding plate 6 and are used for grinding the cut spinal vertebral plate block column in the depth stop ring saw 2 into powder. A plurality of groups of chip removal holes 62 are formed in the grinding plate 6 and located between the grinding teeth 61, the chip removal holes 62 are used for chip removal in the grinding process of the grinding teeth 61, and chips generated in the process of grinding the spinal vertebral plate by the grinding teeth 61 are prevented from blocking a grinding channel of the grinding plate 6 to influence subsequent operation of an operator.
Referring to fig. 1 to 9, the bottom end of the depth-limiting ring saw 2 is provided with a negative pressure suction hole 22 for sucking a circularly cut spinal vertebral plate block column, the negative pressure suction hole 22 is arranged in the depth-limiting ring saw 2, and openings at two ends of the negative pressure suction hole 22 are respectively arranged at the inner side and the outer side of the depth-limiting ring saw 2. The opening end of the negative pressure suction hole 22, which is positioned at the outer side of the depth-limiting ring saw 2, is provided with a sealing plug 221, and the sealing plug 221 is detachably connected with the negative pressure suction hole 22. And the opening end of the negative pressure suction hole 22 positioned at the inner side of the depth-limiting ring saw 2 is arranged at the bottom of the chip groove 23. The art person is before the backbone vertebral lamina is cut off to depth-limiting ring saw 2, external negative pressure equipment and negative pressure suction hole 22 intercommunication, make negative pressure suction hole 22 inside and 2 inner chambers of depth-limiting ring saw produce the negative pressure and adsorb the powder that produces in cutting off backbone vertebral lamina post and the cutting process, improve the grinding efficiency of depth-limiting grinding disk 3, and the messenger cuts off backbone vertebral lamina post and fixes in 2 inner chambers of depth-limiting ring saw, avoid 3 grinding propulsion processes of depth-limiting grinding disk will cut off backbone vertebral lamina post and impel into the spinal vertebral canal and cause the nerve card pressure, the security is high.
Referring to fig. 10 to 12, the limiting buckle 4 is respectively sleeved on the top end of the depth-limiting ring saw 2 and the top end of the depth-limiting grinding disc 3, is in threaded connection with the depth-limiting ring saw 2 and the depth-limiting grinding disc 3, and is used for limiting the cutting depth of the depth-limiting ring saw 2 and the depth-limiting grinding disc 3. The limiting buckle 4 comprises a limiting ring 41 and two groups of limiting blocks 42, wherein the limiting ring 41 is sleeved on the top end of the depth limiting ring saw 2 and the top end of the depth limiting grinding disc 3 respectively and is in threaded connection with the depth limiting ring saw 2 and the depth limiting grinding disc 3, and the two groups of limiting blocks 42 are arranged on the outer side of the limiting ring 41. The spacing ring 41 comprises two sets of spacing semi-rings 411, the one end of two sets of spacing semi-rings 411 is articulated each other, the other end of two sets of spacing semi-rings 411 is equipped with the dead lever 412 that runs through two sets of spacing semi-rings 411, the one end of dead lever 412 is articulated with spacing semi-rings 411, the other end of dead lever 412 is equipped with the fixed handle 413 articulated with dead lever 412, the art person only needs to install the dead lever 412 rotation in two sets of spacing semi-rings 411 at spacing in-process, and rotatory fixed handle 413 can make spacing semi-rings 411 compress tightly each other, realize the mutual fixed function of spacing buckle 4 and limit for depth ring saw 2 and limit for depth mill 3.
Referring to fig. 1, a trepan handle 8 convenient for an operator to rotate the depth ring saw 2 is arranged at the top end of the depth ring saw 2, and the trepan handle 8 is detachably connected with the depth ring saw 2, so that the practicability and convenience of the depth ring saw are improved. The top end of the depth-limiting grinding disc 3 is also provided with a motor mounting head 7 matched with the rotating motor, an operator connects the depth-limiting grinding disc 3 with the rotating motor through the motor mounting head 7 and places the depth-limiting grinding disc 3 in the depth-limiting ring saw 2. Then start rotating electrical machines and drive limit dark mill 3 and rotate, with the grinding of the backbone vertebral plate post that has cut off in the 2 inner chambers of limit dark trepan saw for powdered, avoid the art person to carry out artifical grinding, improved grinding efficiency and reduced art person's physical power and paid out. Meanwhile, a first precession scale 24 is arranged on the outer side of the depth-limiting ring saw 2, a second precession scale 31 is arranged on the outer side of the limiting grinding disc 3, a third precession scale 12 is arranged on the outer side of the limiting soft tissue opening sleeve 1, and the initial point height of the first precession scale 24 is the same as the height of the limiting soft tissue opening sleeve 1. The operator can observe and master the precession depth of the depth-limiting ring saw 2 and the depth-limiting grinding disc 3 in time through the first precession scale 24, the second precession scale 31 and the third precession scale 12, so as to avoid the injury of other normal tissues and structures of the affected part due to overlarge depth.
Referring to fig. 13 to 17, after the operator predicts the cutting depth (thickness of the vertebral plate of the spine) required by the vertebral plate of the patient through the preoperative imaging measurement and the intraoperative X-ray fluoroscopy, since the height of the initial point of the first precession scale 24 is the same as the height of the limiting soft tissue distraction sleeve 1, the operator only needs to shift the limiting half ring 411 on the depth ring saw 2 to the scale point where the first precession scale 24 is the same as the required cutting depth, and fix the limiting ring 41 outside the depth ring saw 2. Then, the operator rotates the depth-limiting ring saw 2 and cuts the vertebral column vertebral plate until two groups of limiting blocks 42 arranged outside the limiting ring 41 contact with the top side of the limiting soft tissue expanding sleeve 1, namely, after the screwing depth of the depth-limiting ring saw 2 reaches the operation requirement (inner bone of the vertebral column canal), and meanwhile, before the vertebral column vertebral plate is cut off through the negative pressure suction hole 22 arranged at the bottom end of the depth-limiting ring saw 2, external negative pressure equipment is communicated with the negative pressure suction hole 22, so that negative pressure is generated inside the negative pressure suction hole 22 and in the inner cavity of the depth-limiting ring saw 2, the cut-off vertebral column plate and powder generated in the rotary cutting process are adsorbed, and the cut-off vertebral column plate is fixed in the inner cavity of the depth-limiting ring saw 2. And stopping rotary cutting, so that the cut vertebral column block column in the depth-limiting ring saw 2 is fixed in the inner cavity of the depth-limiting ring saw 2. Then, the operator connects the depth-restricting grinding disc 3 to the rotating motor, and sets the depth-restricting grinding disc 3 in the depth-restricting ring saw 2. Meanwhile, the operator shifts the stop half ring 411 on the depth-limiting grinding disc 3 to a scale point where the second precession scale 31 is the same as the required grinding depth and places the depth-limiting grinding disc 3 into the inner cavity of the depth-limiting ring saw 2. The operator starts the rotating motor and drives the depth-limiting grinding disc 3 to rotate, so that the grinding teeth 61 grind the cut spinal vertebral column plates in the inner cavity of the depth-limiting ring saw 2 into powder until the two groups of limiting blocks 42 arranged on the outer side of the limiting ring 41 contact with the top side of the depth-limiting ring saw 2.
In the invention, an operator utilizes the limiting soft tissue spreading sleeve to spread the soft tissues such as muscles on the outer side of the vertebral plate of the vertebral column and fix the limiting soft tissue spreading sleeve at the target position on the vertebral plate to avoid sliding, places the depth ring saw in the limiting soft tissue spreading sleeve and rotates the depth ring saw, so that the saw ring arranged at the bottom side of the depth ring saw rotates to annularly cut off the vertebral plate of the vertebral column. Simultaneously, the negative pressure suction hole arranged at the bottom end of the depth-limiting ring saw is communicated with the negative pressure suction hole before cutting off the vertebral column vertebral plate, so that negative pressure is generated inside the negative pressure suction hole and in an inner cavity of the depth-limiting ring saw and powder generated in the process of cutting off the vertebral column vertebral plate and rotating cutting is absorbed, the cut-off vertebral column plate is fixed in the inner cavity of the depth-limiting ring saw, the phenomenon that the cut-off vertebral column plate is pushed into the vertebral column vertebral tube to cause nerve clamping in the process of pushing the depth-limiting grinding disc into the grinding process is avoided, and the safety is high.
Meanwhile, the fine-tuning internal thread arranged on the inner side of the limiting soft tissue opening sleeve is matched with the fine-tuning external thread arranged on the outer side of the depth-limiting ring saw, so that an operator can accurately control and accurately adjust the rotating speed and the screwing depth of the depth-limiting ring saw when installing the depth-limiting ring saw in the limiting soft tissue opening sleeve and rotating the depth-limiting ring saw, and meanwhile, the limiting buckle arranged on the outer side of the depth-limiting ring saw is matched with the threaded connection to avoid the risk of neural structure damage in a vertebral canal caused by hanging and falling when the depth-limiting ring saw is installed in the limiting soft tissue opening sleeve to perform circular cutting vertebral plate operation and the vertebral canal is easy to protrude into the vertebral canal when the saw ring breaks through cortex of the inner layer of the vertebral canal.
Then, the operator connects the depth-limiting grinding disc with the rotating motor and places the depth-limiting grinding disc in the depth-limiting ring saw. The operator starts the rotating motor and drives the depth-limiting grinding disc to rotate, so that the grinding teeth grind the cut spinal vertebral plate column in the inner cavity of the depth-limiting ring saw into powder, the cut spinal vertebral plate in the inner cavity of the depth-limiting ring saw is cleared, and a hole or an enlarged channel is established on the spinal vertebral plate, and the subsequent operation of the operator is facilitated. Set up spacing buckle cooperation threaded connection in the limit for depth mill outside simultaneously and avoid limit for depth mill to install inside the limit for depth ring saw and when the operation of grinding ring cutting off vertebral plate post unsettled fall into and the mill break through vertebral lamina inlayer cortex when the canalis spinally easily the abrupt canalis spinalis and causes the neural structure damage risk in the vertebral canal.
The invention realizes the accurate, targeted circular cutting and grinding of the percutaneous minimally invasive vertebral plate to realize the regular excision of the target position of the vertebral plate and the drilling establishment of a bone channel or the partial excision to enlarge the gap of the vertebral plate, thereby establishing an operation path, opening up a channel for subsequent operation, having convenient, accurate, safe and efficient operation, avoiding excessive excision damage to the vertebral plate, effectively protecting the structure in the vertebral canal from being damaged and reducing the operation risk. The defects that the traditional operation needs rongeur to bite the vertebral plate or utilizes a spherical high-speed grinding drill to grind the vertebral plate under X-ray perspective monitoring, more radiation exposure is needed to prevent the spherical grinding drill from protruding into the vertebral canal to damage nerves so as to monitor the position of the nerves, the channels are established after the rongeur bites the vertebral plate and the spherical grinding drill grinds the vertebral plate and are irregular, the damage to the tissue structure maintaining the stability of the vertebral column is heavy, the iatrogenic wound is large, the operation efficiency is low, the time consumption is long in the operation, the postoperative recovery is slow, the nerve damage risk caused by protruding into the vertebral canal is high, the instability of the vertebral column is caused by excessive damage to soft tissues and the bony structures, an internal fixing device is often needed to be added to rebuild the stability of the vertebral column, the loss of a moving segment is caused, the operation cost is high and the like are overcome.
It is to be noted that, in this document, the terms "comprises", "comprising" or any other variation thereof are intended to cover a non-exclusive inclusion, so that an article or apparatus including a series of elements includes not only those elements but also other elements not explicitly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of additional like elements in the article or device comprising the element.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A suction-cutting type percutaneous vertebral plate drilling accurate depth-limiting ring saw set for a spinal minimally invasive surgery is characterized by comprising a depth-limiting ring saw (2), a limiting soft tissue spreading sleeve (1) sleeved on the outer side of the depth-limiting ring saw (2) and detachably connected with the depth-limiting ring saw (2), a depth-limiting grinding disc (3) arranged in the depth-limiting ring saw (2) and detachably connected with the depth-limiting ring saw (2), limiting buckles (4) respectively sleeved at the top end of the depth-limiting ring saw (2) and the top end of the depth-limiting grinding disc (3), and saw rings (5) arranged at the bottom side of the depth-limiting ring saw (2); a saw ring (5) arranged at the bottom side of the depth-limiting ring saw (2) rotates to cut off the vertebral plate of the vertebral column annularly,
the outer side of the depth-limiting ring saw (2) is provided with a fine-adjustment external thread (21), the inner side of the limiting soft tissue opening sleeve (1) is provided with a fine-adjustment internal thread (11) matched with the fine-adjustment external thread (21), the bottom side of the depth-limiting grinding disc (3) is provided with a grinding plate (6), the bottom side of the grinding plate (6) is provided with a plurality of groups of grinding teeth (61) which are uniformly distributed, the grinding teeth (61) grind the cut spinal vertebral column block column in the inner cavity of the depth-limiting ring saw (2) into powder, the inner wall of the depth-limiting ring saw (2) is provided with a negative pressure suction hole (22), openings at two ends of the negative pressure suction hole (22) are respectively arranged at the inner side and the outer side of the depth-limiting ring saw (2), external negative pressure equipment is communicated with the negative pressure suction hole (22), so that the inner part of the negative pressure suction hole (22) and the inner cavity of the depth-limiting ring saw (2) generate negative pressure and the cut spinal column block column and the powder generated in the cutting process are adsorbed, the vertebral plate column which is cut off the vertebral column is fixed in the inner cavity of the depth-limiting ring saw (2).
2. The suction-cutting type percutaneous vertebral plate drilling precision depth-limiting trepan suit for minimally invasive spine surgery according to claim 1, wherein multiple groups of chip grooves (23) are formed in the inner side of the depth-limiting trepan (2).
3. The suction-cutting type percutaneous vertebral plate drilling precision depth-limiting trepan suit for minimally invasive spine surgery according to claim 1, characterized in that a plurality of groups of chip removal holes (62) are arranged on the grinding plate (6) and between the grinding teeth (61).
4. The suction-cutting type percutaneous vertebral plate drilling precision depth-limiting ring saw set for minimally invasive spine surgery according to claim 1, wherein the limiting buckle (4) comprises a limiting ring (41) sleeved at the top end of the depth-limiting ring saw (2) and the top end of the depth-limiting grinding disc (3) respectively and a plurality of groups of limiting blocks (42) arranged on the outer side of the limiting ring (41).
5. The suction-cutting type percutaneous vertebral plate drilling precision depth-limiting ring saw set for minimally invasive spine surgery according to claim 4, wherein the limiting ring (41) comprises two groups of limiting half rings (411), one ends of the two groups of limiting half rings (411) are hinged to each other, the other ends of the two groups of limiting half rings (411) are provided with fixing rods (412) penetrating through the two groups of limiting half rings (411), one ends of the fixing rods (412) are hinged to the limiting half rings (411), and the other ends of the fixing rods (412) are provided with fixing handles (413) hinged to the fixing rods (412).
6. The suction-cutting type percutaneous vertebral plate drilling precision depth-limiting trepan suit for minimally invasive spine surgery according to claim 1 is characterized in that a first precession scale (24) is arranged on the outer side of the depth-limiting trepan (2), a second precession scale (31) is arranged on the outer side of the depth-limiting grinding disc (3), and a third precession scale (12) is arranged on the outer side of the limiting soft tissue distraction sleeve (1).
7. The suction-cutting type percutaneous vertebral plate drilling precision depth-limiting trepan suit for minimally invasive spine surgery according to claim 1, wherein a motor mounting head (7) is arranged at the top end of the depth-limiting grinding disc (3).
8. The suction-cutting type percutaneous vertebral plate drilling precision depth-limiting trepan suit for minimally invasive spine surgery according to claim 1, wherein a trepan handle (8) detachably connected with the depth-limiting trepan (2) is arranged at the top end of the depth-limiting trepan.
9. The suction-cutting type percutaneous vertebral plate drilling precision depth-limiting trepan suit for minimally invasive spine surgery according to claim 1, wherein anti-skid teeth (9) are arranged on the bottom side of the limiting soft tissue spreading sleeve (1).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010372444.3A CN111513806B (en) | 2020-05-06 | 2020-05-06 | Accurate depth-limiting ring saw suit of formula percutaneous vertebral plate drilling is cut with inhaling to spine minimal access surgery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010372444.3A CN111513806B (en) | 2020-05-06 | 2020-05-06 | Accurate depth-limiting ring saw suit of formula percutaneous vertebral plate drilling is cut with inhaling to spine minimal access surgery |
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| CN111513806A CN111513806A (en) | 2020-08-11 |
| CN111513806B true CN111513806B (en) | 2022-07-08 |
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| CN202010372444.3A Active CN111513806B (en) | 2020-05-06 | 2020-05-06 | Accurate depth-limiting ring saw suit of formula percutaneous vertebral plate drilling is cut with inhaling to spine minimal access surgery |
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| CN112603452A (en) * | 2020-12-15 | 2021-04-06 | 解宝 | Vertebra depth-setting radial slotting device |
| CN113749730A (en) * | 2021-10-12 | 2021-12-07 | 宿迁市第一人民医院 | Bone scraping device for joint surgery |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206342520U (en) * | 2016-09-28 | 2017-07-21 | 重庆医科大学附属永川医院 | A kind of bone surgery grinding attachment |
| CN208388694U (en) * | 2017-07-11 | 2019-01-18 | 超微（上海）骨科医院管理股份有限公司 | A kind of trepan |
| CN110575220A (en) * | 2019-09-24 | 2019-12-17 | 青岛大学附属医院 | Dedicated ring saw device in backbone scope big passageway system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6395011B1 (en) * | 1998-07-17 | 2002-05-28 | Johnson & Johnson | Method and apparatus for harvesting and implanting bone plugs |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206342520U (en) * | 2016-09-28 | 2017-07-21 | 重庆医科大学附属永川医院 | A kind of bone surgery grinding attachment |
| CN208388694U (en) * | 2017-07-11 | 2019-01-18 | 超微（上海）骨科医院管理股份有限公司 | A kind of trepan |
| CN110575220A (en) * | 2019-09-24 | 2019-12-17 | 青岛大学附属医院 | Dedicated ring saw device in backbone scope big passageway system |
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| CN111513806A (en) | 2020-08-11 |
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