CN110559023B - Minimally invasive retractor for spinal surgery and associated methods - Google Patents
Minimally invasive retractor for spinal surgery and associated methods Download PDFInfo
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- CN110559023B CN110559023B CN201910838113.1A CN201910838113A CN110559023B CN 110559023 B CN110559023 B CN 110559023B CN 201910838113 A CN201910838113 A CN 201910838113A CN 110559023 B CN110559023 B CN 110559023B
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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
- A61B17/0218—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors for minimally invasive surgery
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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
- A61B17/025—Joint distractors
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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
- A61B17/025—Joint distractors
- A61B2017/0256—Joint distractors for the spine
Abstract
The invention discloses a minimally invasive retractor for spinal surgery and an associated method, and particularly relates to the technical field of medical instruments, wherein the minimally invasive retractor comprises a fixed rod, wherein two ends of the fixed rod are respectively provided with a retracting mechanism; the retracting mechanism comprises a positioning rod, a second fixing block is fixedly connected with the fixing rod, a first fixing block is arranged at the bottom of the positioning rod, the bottom end of the positioning rod is hinged to the surface of the first fixing block, and a guide rod is fixedly arranged on one side of the first fixing block. According to the invention, by arranging the retracting mechanism and the horizontal moving mechanism, the second sliding sleeve is driven by the connecting block to move outside the adjusting cylinder when moving, the adjusting block drives the first screw rod to rotate, so that the first screw rod and the positioning cylinder are unfolded, the anchoring part is indirectly driven to expand outwards, and after the anchoring part is horizontally moved and overturned to move in a combined manner, the anchoring part can independently adjust a certain retracting distance, so that the retracting distance of a single anchoring part can be effectively controlled.
Description
Technical Field
The present invention relates to the technical field of medical instruments, and more particularly, to a minimally invasive retractor for spinal surgery and an associated method.
Background
Spinal fixation constructs are used to provide stability to the spine and, in most cases, are used as an adjunct to fusion procedures during which adjacent vertebrae are prepared to promote bone growth therebetween, thereby eliminating motion between the vertebrae.
Patent application publication No. CN106793940B discloses a spinal surgical retractor. The retractor assembly includes a retractor body, first and second arms, and first and second retractor blades. The first and second retractor blades capture a portion of the bone anchor to anchor the retractor to the body structure. First and second retractor blades are removably attached to the left and right arms, respectively. The housing is capable of being controlled to rotate by the opening unit. The blade portion has a distal end and a proximal end. The distal end includes an integral pivoting arm such that the distal end is divided into a stationary arm and a pivoting arm. The distal end of the stationary arm includes a stationary foot extending therefrom and the pivoting arm includes a pivoting foot extending therefrom to receive the neck of the bone anchor.
However, in actual use, the invention still has more defects, such as that the two anchoring pieces can not be respectively adjusted for a certain retracting distance in the use process.
Disclosure of the invention
In order to overcome the above-mentioned defects of the prior art, embodiments of the present invention provide a minimally invasive retractor for spinal surgery and a related method, by providing a retracting mechanism and a horizontal moving mechanism, a control ring drives a second screw to rotate, so that a second sliding sleeve outside the second screw is driven by a thread to slide inside an adjusting cylinder, the second sliding sleeve drives a retracting sleeve to move outside the adjusting cylinder through a connecting block when moving, then the retracting sleeve drives an anchoring member fixed by the related mechanism to move horizontally through a bottom rod, the adjusting block drives a first screw to rotate, then the first screw rotates in a thread inside a positioning cylinder, so that the first screw and the positioning cylinder are unfolded, then the positioning cylinder drives the first sliding sleeve to slide outside a guide rod, so as to push the adjusting cylinder to turn outwards, thereby indirectly driving the anchoring member to expand outwards, after the anchoring member performs a horizontal movement and a turning movement to be combined, the anchoring can independently adjust a certain retracting distance, and the retracting distance of a single anchoring piece can be effectively controlled, so that the problems in the background art are solved.
In order to achieve the purpose, the invention provides the following technical scheme: a minimally invasive retractor for spine surgery comprises a fixed rod, wherein both ends of the fixed rod are provided with retracting mechanisms;
the retracting mechanism comprises a positioning rod, the positioning rod is fixedly connected with the fixing rod, a first fixed block is arranged at the bottom of the positioning rod, the bottom end of the positioning rod is hinged with the surface of the first fixed block, a guide rod is fixedly arranged on one side of the first fixed block, a second fixed block is fixedly arranged on one side of the guide rod, a connecting rod is fixedly arranged at the bottom of the second fixed block, an adjusting cylinder is fixedly arranged at the bottom of the connecting rod, a positioning plate is fixedly arranged on one side of the adjusting cylinder, the first fixed block is fixedly connected with the first fixed block, a first sliding sleeve is sleeved on the outer side of the guide rod, a positioning cylinder is arranged on the back surface of the first sliding sleeve, the bottom end of the positioning cylinder is hinged with the surface of the first sliding sleeve, a first screw is arranged inside the positioning cylinder, the first screw is in threaded connection with the positioning cylinder, a first bearing is fixedly arranged on the outer side of the first screw, a positioning shell is fixedly arranged on the outer side of the first bearing, an adjusting block is fixedly arranged at the top end of the first screw rod, an inclined rod is fixedly arranged at the top of the positioning shell, the top end of the inclined rod is hinged with the surface of the fixed rod, and a horizontal moving mechanism is arranged inside the adjusting cylinder;
the horizontal moving mechanism comprises a second screw rod, a second bearing is fixedly arranged at one end of the second screw rod, the second bearing is fixedly connected with the inner wall of the adjusting cylinder, a through sliding opening is formed in the surface of the adjusting cylinder, a second sliding sleeve is arranged on the outer side of the second screw rod, the second screw rod is in threaded connection with the second sliding sleeve, a first fixing block is penetrated through by the second screw rod, a control ring is fixedly arranged on one side of the second screw rod, a connecting block is fixedly arranged on the front side and the back side of the second sliding sleeve, a retracting sleeve is fixedly arranged at one end of the connecting block, balls are fixedly arranged on the inner wall of the retracting sleeve, a bottom rod is fixedly arranged at the bottom of the retracting sleeve, the second sliding sleeve is in sliding connection with the inside of the adjusting cylinder, the retracting sleeve is in sliding connection with the adjusting cylinder, and the adjusting sleeve is arranged on the outer side of the adjusting cylinder.
In a preferred embodiment, a linking mechanism is arranged on one side of the bottom rod, the linking mechanism comprises a side block, the side block is fixedly connected with the bottom rod, and a fixed shell is fixedly arranged on one side of the side block.
In a preferred embodiment, two clamping blocks are fixedly arranged on one side of the fixing shell, clamping grooves are formed in the surfaces of the two clamping blocks, positioning blocks are arranged inside the clamping grooves and clamped with the clamping grooves, screw holes are formed in the surface of the fixing shell, and anchoring parts are fixedly arranged at the bottoms of the positioning blocks.
In a preferred embodiment, the positioning block is provided with a positioning groove on the top surface, and a press buckle is arranged on the top of the positioning groove and is clamped with the positioning groove.
In a preferred embodiment, a third screw is fixedly arranged at the top of the press buckle, the third screw is in threaded connection with the screw hole, and a button plate is fixedly arranged at the top of the third screw.
Also included is a method of associating a minimally invasive retractor for use in spinal surgery, comprising the steps of:
step one, the anchoring part is fixed on the spine, during association, the positioning block is moved between the two clamping blocks, the positioning block is clamped into the clamping groove, then the button plate is rotated and downwards rotated in the screw hole through the third screw rod, so that the pressing buckle is driven to be clamped into the positioning groove formed in the top surface of the positioning block, the positioning block is extruded and fixed inside the clamping groove, and then the anchoring part is installed in an associated mode
In a preferred embodiment, in the first step, the anchoring piece is preferentially fixed on the preset area of the spinal column according to the fixation requirement, and then the anchoring piece is fixedly arranged on the associated mechanism, so that the wound is reduced, and the anchoring piece is convenient to be nailed into the spinal column.
The invention has the technical effects and advantages that:
1. by arranging the retracting mechanism and the horizontal moving mechanism, the control ring drives the second screw rod to rotate, thereby the second sliding sleeve outside the second screw rod is driven by the screw thread to slide in the adjusting cylinder, the second sliding sleeve is driven by the connecting block to move outside the adjusting cylinder when moving, then the retracting sleeve drives the anchoring part fixed by the associated mechanism to move horizontally by the bottom rod, the adjusting block drives the first screw rod to rotate, then the first screw rod rotates by the screw thread in the positioning cylinder, thereby expanding the first screw rod and the positioning cylinder, then the positioning cylinder drives the first sliding sleeve to slide outside the guide rod, thereby pushing the adjusting cylinder to turn outwards, thereby indirectly driving the anchoring piece to expand outwards, after the anchoring piece is combined with horizontal movement and overturning movement, the anchoring piece can independently adjust a certain retracting distance, and the retracting distance of a single anchoring piece is effectively controlled;
2. through setting up the associative mechanism, remove the locating piece between two fixture blocks, make inside the locating piece card goes into the draw-in groove, later rotatory button board, the button board passes through the third screw rod and rotates downwards in the screw is inside, thereby it goes into inside the constant head tank that locating piece top surface was equipped with to drive the buckle card, thereby fix the locating piece extrusion inside the draw-in groove, and then carry out the associative installation to anchoring part, the effectual installation is fixed when combining anchoring part, adopt the fixed of stand-alone type anchoring part, receive the influence of apparatus when avoiding anchoring part fixed, the effectual fixed efficiency who promotes anchoring part, anchoring part is single fixed convenient, reduce spinal surgery's wound area.
Drawings
FIG. 1 is a top view of the present invention.
Fig. 2 is a front view of the present invention.
FIG. 3 is a schematic view of a portion A of FIG. 1 according to the present invention.
Fig. 4 is a schematic view of a partial structure of the part B in fig. 2 according to the present invention.
Fig. 5 is a schematic view of a partial structure of the part C in fig. 2 according to the present invention.
Fig. 6 is a schematic structural view of a second sliding sleeve, a connecting block and a retracting sleeve.
Fig. 7 is a perspective view of the fixing housing and the latch of the present invention.
The reference signs are: the device comprises a fixing rod 1, a retracting mechanism 2, a positioning rod 3, a first fixing block 4, a guide rod 5, a second fixing block 6, a connecting rod 7, an adjusting cylinder 8, a positioning plate 9, a first sliding sleeve 10, a positioning cylinder 11, a first screw 12, a first bearing 13, a positioning shell 14, an adjusting block 15, an inclined rod 16, a horizontal moving mechanism 17, a second screw 18, a second bearing 19, a through sliding opening 20, a second sliding sleeve 21, a control ring 22, a connecting block 23, a retracting sleeve 24, a ball 25, a bottom rod 26, a correlation mechanism 27, a fixing shell 28, a clamping block 29, a clamping groove 30, a positioning block 31, a screw hole 32, an anchoring part 33, a positioning groove 34, a press buckle 35 and a third screw 36.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
The minimally invasive retractor for the spine surgery as shown in the attached figures 1-7 comprises a fixing rod 1, wherein both ends of the fixing rod 1 are provided with retracting mechanisms 2;
the retracting mechanism 2 comprises a positioning rod 3, the positioning rod 3 is fixedly connected with a fixing rod 1, a first fixing block 4 is arranged at the bottom of the positioning rod 3, the bottom end of the positioning rod 3 is hinged with the surface of the first fixing block 4, a guide rod 5 is fixedly arranged on one side of the first fixing block 4, a second fixing block 6 is fixedly arranged on one side of the guide rod 5, a connecting rod 7 is fixedly arranged at the bottom of the second fixing block 6, an adjusting cylinder 8 is fixedly arranged at the bottom of the connecting rod 7, a positioning plate 9 is fixedly arranged on one side of the adjusting cylinder 8, the first fixing block 4 is fixedly connected with the first fixing block 4, a first sliding sleeve 10 is sleeved on the outer side of the guide rod 5, a positioning cylinder 11 is arranged on the back of the first sliding sleeve 10, the bottom end of the positioning cylinder 11 is hinged with the surface of the first sliding sleeve 10, a first screw 12 is arranged in the positioning cylinder 11, and the first screw 12 is in threaded connection with the positioning cylinder 11, a first bearing 13 is fixedly arranged on the outer side of the first screw 12, a positioning shell 14 is fixedly arranged on the outer side of the first bearing 13, an adjusting block 15 is fixedly arranged at the top end of the first screw 12, an inclined rod 16 is fixedly arranged at the top of the positioning shell 14, the top end of the inclined rod 16 is hinged with the surface of the fixed rod 1, and a horizontal moving mechanism 17 is arranged inside the adjusting cylinder 8;
the horizontal moving mechanism 17 comprises a second screw 18, one end of the second screw 18 is fixedly provided with a second bearing 19, the second bearing 19 is fixedly connected with the inner wall of the adjusting cylinder 8, the surface of the adjusting cylinder 8 is provided with a through sliding port 20, a second sliding sleeve 21 is arranged outside the second screw 18, the second screw 18 is in threaded connection with the second sliding sleeve 21, the second screw 18 penetrates through the first fixing block 4, a control ring 22 is fixedly arranged on one side of the second screw 18, the front and the back of the second sliding sleeve 21 are both fixedly provided with a connecting block 23, one end of the connecting block 23 is fixedly provided with a retracting sleeve 24, the inner wall of the retraction sleeve 24 is fixedly provided with a ball 25, the bottom of the retraction sleeve 24 is fixedly provided with a bottom rod 26, the second sliding sleeve 21 is connected with the inside of the adjusting cylinder 8 in a sliding manner, the retracting sleeve 24 is connected with the adjusting cylinder 8 in a sliding manner, and the retracting sleeve 24 is arranged on the outer side of the adjusting cylinder 8.
The implementation mode is specifically as follows: when the adjusting device is used, when the retracting distance of the anchoring piece 33 needs to be adjusted, the two control rings 22 are rotated, the control rings 22 drive the second screw rod 18 to rotate, so that the second sliding sleeve 21 on the outer side of the second screw rod 18 is driven by the threads to slide in the adjusting cylinder 8, the retracting sleeve 24 is driven by the second sliding sleeve 21 to move on the outer side of the adjusting cylinder 8 through the connecting block 23 when the second sliding sleeve 21 moves, the arranged ball 25 improves the moving efficiency of the retracting sleeve 24, then the retracting sleeve 24 drives the anchoring piece 33 fixed by the correlation mechanism 27 to horizontally move through the bottom rod 26, when the angle needs to be adjusted, the adjusting block 15 is rotated, the adjusting block 15 drives the first screw rod 12 to rotate, then the first screw rod 12 rotates in the positioning cylinder 11 through the threads, so that the first screw rod 12 and the positioning cylinder 11 are unfolded, then the positioning cylinder 11 drives the first sliding sleeve 10 to slide on the outer side of the guide rod 5, so that the adjusting cylinder 8 is pushed to turn over outwards, thereby indirect drive anchor assembly 33 outwards expands and props, after carrying out horizontal migration and upset removal with anchor assembly 33 and combine, makes the anchor can be independent carry out the regulation of certain distance of pulling out, and effectual pulling out distance to single anchor assembly 33 controls, and this embodiment has specifically solved the problem that two anchor assemblies 33 can not carry out the regulation of certain distance of pulling out separately in the use that exists among the prior art.
The minimally invasive retractor for the spine surgery as shown in fig. 5 and 7 further comprises a relating mechanism 27, wherein the relating mechanism 27 is arranged on one side of the bottom rod 26, the relating mechanism 27 comprises a side block, the side block is fixedly connected with the bottom rod 26, and a fixing shell 28 is fixedly arranged on one side of the side block;
two clamping blocks 29 are fixedly arranged on one side of the fixed shell 28, clamping grooves 30 are formed in the surfaces of the two clamping blocks 29, positioning blocks 31 are arranged inside the clamping grooves 30, the positioning blocks 31 are clamped with the clamping grooves 30, screw holes 32 are formed in the surface of the fixed shell 28, anchoring parts 33 are fixedly arranged at the bottoms of the positioning blocks 31, and the positions of the positioning blocks 31 are convenient to limit by the two clamping blocks 29;
a positioning groove 34 is formed in the surface of the top of the positioning block 31, a press buckle 35 is arranged at the top of the positioning groove 34, and the press buckle 35 is clamped with the positioning groove 34;
the top of the pressing buckle 35 is fixedly provided with a third screw rod 36, the third screw rod 36 is in threaded connection with the screw hole 32, the top of the third screw rod 36 is fixedly provided with a button plate, and the set button plate is convenient to rotate the third screw rod 36.
The implementation mode specifically comprises the following steps: the anchoring part 33 is preferentially fixed in a preset area of the spine according to the requirement under fixation, then the anchoring part 33 is fixedly installed on the association mechanism 27, the anchoring part 33 is conveniently nailed into the spine, when association fixation is carried out, the positioning block 31 is moved between the two clamping blocks 29, the positioning block 31 is clamped into the clamping groove 30, then the button plate is rotated, the button plate rotates downwards in the screw hole 32 through the third screw rod 36, so that the pressing buckle 35 is driven to be clamped into the positioning groove 34 arranged on the top surface of the positioning block 31, the positioning block 31 is extruded and fixed in the clamping groove 30, then association installation is carried out on the anchoring part 33, the anchoring part 33 is effectively installed and fixed when being combined, the fixation of the independent anchoring part 33 is adopted, the influence of instruments when the anchoring part 33 is fixed is avoided, the fixation efficiency of the anchoring part 33 is effectively improved, and the single fixation of the anchoring part 33 is fast and convenient, the wound area of the spinal surgery is reduced, and the embodiment specifically solves the problem that the anchoring piece 33 and the spinal retractor are required to be used simultaneously in the prior art, and the anchoring piece 33 is easy to influence the fixing efficiency of the anchoring piece 33.
Also included is a method of associating a minimally invasive retractor for use in spinal surgery, comprising the steps of:
firstly, an anchoring part 33 is fixed on a spine, when the anchoring part 33 is associated, a positioning block 31 is moved between two clamping blocks 29, so that the positioning block 31 is clamped into a clamping groove 30, then a button plate is rotated, the button plate rotates downwards in a screw hole 32 through a third screw rod 36, a press buckle 35 is driven to be clamped into a positioning groove 34 formed in the top surface of the positioning block 31, the positioning block 31 is extruded and fixed into the clamping groove 30, and the anchoring part 33 is installed in an associated mode;
in the first step, the anchoring member 33 is preferentially fixed in the predetermined area of the spinal column according to the fixation requirement, and then the anchoring member 33 is fixedly arranged on the association mechanism 27, so that the wound is reduced, and the anchoring member 33 is convenient to be nailed into the spinal column.
The working principle of the invention is as follows:
referring to the attached drawings 1-7 in the specification, the control ring 22 drives the second screw 18 to rotate, so that the second sliding sleeve 21 outside the second screw 18 is driven by the screw to slide inside the adjusting cylinder 8, when the second sliding sleeve 21 moves, the retracting sleeve 24 is driven by the connecting block 23 to move outside the adjusting cylinder 8, then the retracting sleeve 24 drives the anchoring member 33 fixed by the linking mechanism 27 to horizontally move through the bottom rod 26, the adjusting block 15 drives the first screw 12 to rotate, then the first screw 12 rotates in the positioning cylinder 11 by the screw, so that the first screw 12 and the positioning cylinder 11 are unfolded, then the positioning cylinder 11 drives the first sliding sleeve 10 to slide outside the guide rod 5, so that the adjusting cylinder 8 is pushed to turn over outwards, so that the anchoring member 33 is indirectly driven to extend outwards, after the anchoring member 33 is horizontally moved and turned over to move in combination, the anchoring member can independently perform adjustment of a certain retracting distance, the retracting distance of the single anchoring piece 33 is effectively controlled;
referring to the specification, fig. 5 and fig. 7, the positioning block 31 is moved between the two clamping blocks 29, so that the positioning block 31 is clamped into the clamping groove 30, then the button plate is rotated, the button plate rotates downwards in the screw hole 32 through the third screw rod 36, and the pressing buckle 35 is driven to be clamped into the positioning groove 34 formed in the top surface of the positioning block 31, so that the positioning block 31 is extruded and fixed into the clamping groove 30, and further the anchoring piece 33 is installed in an associated mode, the anchoring piece 33 is effectively installed and fixed when combined, the fixing of the independent anchoring piece 33 is adopted, the influence of instruments on the fixing of the anchoring piece 33 is avoided, the fixing efficiency of the anchoring piece 33 is effectively improved, the single fixing of the anchoring piece 33 is quick and convenient, and the wound area of the spinal surgery is reduced.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (6)
1. Minimally invasive retractor for spinal surgery, comprising a fixing rod (1), characterized in that: both ends of the fixed rod (1) are provided with a retracting mechanism (2);
the retracting mechanism (2) comprises a positioning rod (3), the positioning rod (3) is fixedly connected with a fixing rod (1), a first fixing block (4) is arranged at the bottom of the positioning rod (3), the bottom end of the positioning rod (3) is hinged to the surface of the first fixing block (4), a guide rod (5) is fixedly arranged on one side of the first fixing block (4), a second fixing block (6) is fixedly arranged on one side of the guide rod (5), a connecting rod (7) is fixedly arranged at the bottom of the second fixing block (6), an adjusting cylinder (8) is fixedly arranged at the bottom of the connecting rod (7), a positioning plate (9) is fixedly arranged on one side of the adjusting cylinder (8), the first fixing block (4) is fixedly connected with the first fixing block (4), a first sliding sleeve (10) is sleeved on the outer side of the guide rod (5), and a positioning cylinder (11) is arranged on the back side of the first sliding sleeve (10), the bottom end of the positioning cylinder (11) is hinged to the surface of the first sliding sleeve (10), a first screw (12) is arranged inside the positioning cylinder (11), the first screw (12) is in threaded connection with the positioning cylinder (11), a first bearing (13) is fixedly arranged on the outer side of the first screw (12), a positioning shell (14) is fixedly arranged on the outer side of the first bearing (13), an adjusting block (15) is fixedly arranged at the top end of the first screw (12), an inclined rod (16) is fixedly arranged at the top of the positioning shell (14), the top end of the inclined rod (16) is hinged to the surface of the fixed rod (1), and a horizontal moving mechanism (17) is arranged inside the adjusting cylinder (8);
the horizontal moving mechanism (17) comprises a second screw rod (18), one end of the second screw rod (18) is fixedly provided with a second bearing (19), the second bearing (19) is fixedly connected with the inner wall of an adjusting cylinder (8), the surface of the adjusting cylinder (8) is provided with a through sliding opening (20), the outer side of the second screw rod (18) is provided with a second sliding sleeve (21), the second screw rod (18) is in threaded connection with the second sliding sleeve (21), the second screw rod (18) penetrates through a first fixed block (4), one side of the second screw rod (18) is fixedly provided with a control ring (22), the front and the back of the second sliding sleeve (21) are both fixedly provided with a connecting block (23), one end of the connecting block (23) is fixedly provided with a retracting sleeve (24), the inner wall of the retracting sleeve (24) is fixedly provided with a ball (25), the bottom of the retracting sleeve (24) is fixedly provided with a bottom rod (26), the second sliding sleeve (21) is connected with the adjusting cylinder (8) in a sliding mode, the retracting sleeve (24) is connected with the adjusting cylinder (8) in a sliding mode, and the retracting sleeve (24) is arranged on the outer side of the adjusting cylinder (8).
2. A minimally invasive retractor for use in spinal surgery according to claim 1, further comprising: the utility model discloses a bottom bar, including bottom bar (26), bottom bar (26) one side is equipped with associated mechanism (27), associated mechanism (27) are including the side piece, side piece and bottom bar (26) fixed connection, the fixed shell (28) that are equipped with in side piece one side.
3. A minimally invasive retractor for use in spinal surgery according to claim 2, characterized in that: the clamping device is characterized in that two clamping blocks (29) are fixedly arranged on one side of the fixed shell (28), clamping grooves (30) are formed in the surfaces of the two clamping blocks (29), positioning blocks (31) are arranged inside the clamping grooves (30), the positioning blocks (31) are clamped with the clamping grooves (30), screw holes (32) are formed in the surface of the fixed shell (28), and anchoring pieces (33) are fixedly arranged at the bottoms of the positioning blocks (31).
4. A minimally invasive retractor for use in spinal surgery according to claim 3, wherein: locating piece (31) top surface is equipped with constant head tank (34), constant head tank (34) top is equipped with presses knot (35), press knot (35) and constant head tank (34) block.
5. A minimally invasive retractor for use in spinal surgery according to claim 4, wherein: and a third screw rod (36) is fixedly arranged at the top of the press buckle (35), the third screw rod (36) is in threaded connection with the screw hole (32), and a button plate is fixedly arranged at the top of the third screw rod (36).
6. A minimally invasive retractor for use in spinal surgery according to any one of claims 1 to 5, wherein: also included is a method of associating a minimally invasive retractor for use in spinal surgery, comprising the steps of:
firstly, an anchoring piece (33) is fixed on a spine, when the anchoring piece is associated, a positioning block (31) is moved between two clamping blocks (29), the positioning block (31) is clamped into a clamping groove (30), then a button plate is rotated and downwards rotated in a screw hole (32) through a third screw rod (36), so that a press buckle (35) is driven to be clamped into a positioning groove (34) formed in the top surface of the positioning block (31), the positioning block (31) is extruded and fixed in the clamping groove (30), and the anchoring piece (33) is installed in an associated mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910838113.1A CN110559023B (en) | 2019-09-05 | 2019-09-05 | Minimally invasive retractor for spinal surgery and associated methods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910838113.1A CN110559023B (en) | 2019-09-05 | 2019-09-05 | Minimally invasive retractor for spinal surgery and associated methods |
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| CN110559023A CN110559023A (en) | 2019-12-13 |
| CN110559023B true CN110559023B (en) | 2022-05-20 |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7918792B2 (en) * | 2006-01-04 | 2011-04-05 | Depuy Spine, Inc. | Surgical retractor for use with minimally invasive spinal stabilization systems and methods of minimally invasive surgery |
| US20110098537A1 (en) * | 2009-10-28 | 2011-04-28 | Warsaw Orthopedic, Inc. | Tissue massage retractor |
| WO2016025020A2 (en) * | 2014-08-13 | 2016-02-18 | Nuvasive, Inc. | Minimally disruptive retractor and associated methods for spinal surgery |
| CN104323806A (en) * | 2014-10-20 | 2015-02-04 | 郑州人民医院 | Operation retractor provided with multi-claw adjusting function |
| ES2828277T3 (en) * | 2015-08-06 | 2021-05-25 | Nuvasive Inc | Minimal Disruptive Retraction Set for Spine Surgery |
| CN208625771U (en) * | 2018-01-10 | 2019-03-22 | 付鑫 | A kind of mastoid retractor |
| CN208784808U (en) * | 2018-04-09 | 2019-04-26 | 王龙强 | A kind of multidirectional pull device for spinal surgery |
| CN208838039U (en) * | 2018-05-29 | 2019-05-10 | 深圳市人民医院 | A kind of adjustable retractor of thoracic surgery |
| CN207837595U (en) * | 2018-06-25 | 2018-09-11 | 辛志军 | Minimally invasive spine surgical is with strutting pressurized clamp |
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