CN113768561A - Retractor fixer for neurosurgery and using method - Google Patents
Retractor fixer for neurosurgery and using method Download PDFInfo
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- CN113768561A CN113768561A CN202111207549.4A CN202111207549A CN113768561A CN 113768561 A CN113768561 A CN 113768561A CN 202111207549 A CN202111207549 A CN 202111207549A CN 113768561 A CN113768561 A CN 113768561A
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- 230000006978 adaptation Effects 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000004140 cleaning Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 229910010293 ceramic material Inorganic materials 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000004519 grease Substances 0.000 description 3
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- 230000001050 lubricating effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000007769 metal material Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 210000004556 brain Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 210000003792 cranial nerve Anatomy 0.000 description 1
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- 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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Abstract
The invention belongs to the technical field of neurosurgery surgical instruments, and particularly relates to a neurosurgery retractor fixer and a using method thereof, the neurosurgery retractor fixer comprises an annular fixing frame, a sliding part which is arranged on the annular fixing frame in a sliding way is connected with a first fixing part in a threaded way, one end of the side surface of the sliding part is provided with an external thread part which is connected with a connecting part in a threaded way, one end of the sliding part is provided with a first end face tooth, the connecting part is rotatably arranged at the outer side of a supporting part in a rotating part, one end of a baffle ring which is fixedly connected with one end of the supporting part is fixedly provided with a second end face tooth, the top surface of the supporting part is fixedly provided with a rear limiting block and a front limiting block, the top surface of the rear limiting block is fixedly connected with an external thread column, the side surfaces of the rear limiting block and the front limiting block are slidably connected with the inner wall of an adjusting part in a retractor, the external thread column is connected with a second fixing part in a threaded way, a shaft structure is not needed, and the retractor can realize the adjustment of the position and the angle through the occlusion of the sliding part and the rotating part and the limiting sliding part on the annular fixing frame, is convenient for cleaning and maintenance and has low manufacturing cost.
Description
Technical Field
The invention belongs to the technical field of neurosurgical surgical instruments, and particularly relates to a neurosurgical retractor fixer and a using method thereof.
Background
The existing neurosurgery hook fixator generally adopts a hinge mechanism and a gear mechanism which comprise shafts to realize the adjustment of the position and the angle of the hook fixator, the hinge mechanism and the gear mechanism are made of metal materials, lubricating materials are inevitably used, and the grease lubricating materials contained in the device not only can influence the operation environment, but also need oil supplement maintenance after cleaning and disinfection every time, so that the maintenance difficulty is high; the ceramic material can avoid using lubricating oil in the device, but the ceramic material has high cost, and the manufactured device has high price and is not beneficial to popularization.
For example, in the invention patent with the publication number of CN 108814659B, the movable rod on the spherical connecting rod can freely rotate by arranging the spherical connecting rod, so as to achieve the purpose of adjusting the angle of the fixator body, and the skin of the brain can be hooked in the downward direction for cranial nerve surgery, so that the surgery area is the largest; the fixing piece can automatically move on the fixer body to adjust the optimal position of the draw hook, and the fixing piece is very convenient to increase or take out, so that the quick adjustment before the operation is facilitated. In the above structure: the gap position of a hinge structure which is composed of the spherical connecting rod and the movable rod and is similar to the spherical hinge has the defect of difficult cleaning and disinfection; as mentioned above, the spherical connecting rod and the movable rod can affect the operation environment when using grease lubricating materials, and the maintenance difficulty is high; when the ceramic material is used, the manufacturing cost is high, and the popularization and the use are not facilitated.
Disclosure of Invention
In order to adjust the position and the angle of the draw hook, a hinge mechanism and a gear mechanism which contain shafts are commonly used in the existing draw hook fixator, and when the structure is made of metal materials, grease which plays a role in lubrication can not only influence the operation environment, but also have higher maintenance difficulty; the ceramic material is convenient to clean, but has high cost and is not beneficial to popularization. The invention provides a retractor fixer for neurosurgery and a using method thereof, a shaft structure is not needed, the retractor can realize the adjustment of position and angle through the occlusion of a sliding part and a rotating part and the limit sliding of the sliding part on an annular fixing frame, the cleaning and the maintenance are convenient, and the manufacturing cost is low.
The invention provides the following technical scheme: the utility model provides a neurosurgery drag hook fixer, includes annular mount, slidable mounting has the slider on the annular mount, the internal thread through-hole of the first mounting of threaded connection is seted up to one side of slider top surface, the external screw thread spare of threaded connection connecting piece is seted up to the one end of slider side, the fixed first terminal surface tooth that is equipped with of one end of slider, the connecting piece rotates the support piece's of installing in rotating the piece the outside, support piece's one end fixedly connected with keeps off the ring, the fixed second terminal surface tooth that is equipped with of one end terminal surface that keeps off the ring, support piece's top surface fixed mounting has back stopper and preceding stopper, the top surface fixedly connected with external screw thread post of back stopper, the inner wall of the regulation portion in the side sliding connection drag hook of back stopper, preceding stopper, external screw thread post threaded connection has the second mounting.
The annular fixing frame is an open annular structure with planes transversely cut on the upper side and the lower side, a sliding groove is horizontally arranged on the sliding piece in a penetrating mode, and the sliding groove is connected with the annular fixing frame in a sliding mode; the sliding part can only move on the annular fixing frame in the circumferential direction around the axis of the annular fixing frame, so that the position of the draw hook can be adjusted.
The first fixing piece comprises an external thread rod and a first rotating handle, the external thread rod is fixedly connected with the first rotating handle, the bottom surface of the external thread rod is a flat plane, the axis of the internal thread through hole is vertical to the plane of the top surface of the annular fixing frame, and the internal thread through hole penetrates through the top of the sliding groove; the bottom surface of the external thread rod can be neatly attached to the top surface of the annular fixing frame, so that the position of the sliding part on the annular fixing frame is stably limited and fixed.
The connecting piece is of an internal thread pipe structure, a limiting ring is fixedly arranged on one side of the inner end face of the connecting piece, the baffle ring is of a flat circular plate type structure, the supporting piece is of a circular pipe type structure, a plane is transversely cut at the top of one end, far away from the baffle ring, of the supporting piece, and the inner side face of the connecting piece is in sliding connection with the curved surface side face of the supporting piece; the connecting piece can be in threaded connection with the sliding piece and the connecting piece under the limit of the limit ring and the baffle ring, so that the sliding piece and the connecting piece can be stably connected or quickly detached.
The first end face teeth are matched with and meshed with the second end face teeth, and the connecting piece and the supporting piece are sleeved on the outer side of the annular fixing frame and are not in direct contact with the annular fixing frame; the sliding part and the rotating part can be stably connected into a whole under the action of the connecting part, so that the limitation is realized on the rotating part which is fixed on the annular fixing frame and rotates freely around the axis of the rotating part to adjust the vertical angle of the drag hook, and the drag hook can be stably used at any angle.
The drag hook comprises an adjusting part, a handle part, a fine adjustment part and a head part, wherein the handle part is fixedly connected with the rear end of the adjusting part, the adjusting part is provided with a through groove structure which is formed by semi-cylindrical grooves at two ends and a square groove in the middle in a vertically through mode, the inner diameter of the through groove in the adjusting part is the same as the diameter of a rear limiting block, the rear limiting block and a front limiting block are both flat cylindrical structures, the number of the front limiting blocks is two, the maximum straight line distance of the side surfaces of the two front limiting blocks is the same as the diameter of the rear limiting block, and the extension line of the middle point of the straight line connected with the circle centers of the bottom surfaces of the two front limiting blocks and the extension line of the straight line connected with the circle center of the bottom surface of the rear limiting block penetrates through the axis of the annular fixing frame; the drag hook can be stably installed on the rotating part under the three-point limiting of the rear limiting block and the front limiting block, and the drag hook can be used at the position of the rotating part through the sliding adjustment of the adjusting part.
The fine adjustment part comprises a first rotating seat, a first rotating sphere, a first connecting rod, a second rotating seat and a second rotating sphere, the rear end of the first rotating seat is fixedly connected with the front end of the adjustment part, the first rotating seat is the same as the structure in size, the first rotating sphere is the same as the second rotating sphere in structure in size, the first rotating seat is composed of a meshing section, a sliding section, a rotating section and a clamping section, the meshing section and the rotating section are both of a hemispherical groove structure, the sliding section is of a circular tube type structure with the same inner diameter as the meshing section and the rotating section, the first rotating sphere is of a spherical structure, a tooth groove is formed in the spherical surface of the first rotating sphere, a tooth structure meshed with the first rotating sphere is arranged on the inner wall of the meshing section, the first rotating sphere and the rotating section are in clearance fit, and the front end of the rotating section is provided with an axis of the first rotating seat so that the first connecting rod can rotate around the first rotating sphere as a fulcrum and cannot enable the first rotating sphere to rotate without enabling the first rotating sphere to rotate around the first rotating sphere The body is separated from a through hole of the first rotating seat, the clamping section is of an annular convex structure, the clamping section is fixedly arranged at one end of the sliding section connected with the rotating section, two ends of the first connecting rod are respectively and fixedly connected with the side surface of the first rotating ball body and the rear end surface of the second rotating seat, the second rotating ball body is arranged in the second rotating seat, and the side surface of the second rotating ball body is fixedly connected with the rear end of the head; but medical personnel push-and-pull rotates head, head-connecting rod, realizes improving the fineness of operation to the fine setting of head angle, improves the operation quality.
The second fixing piece comprises an internal thread pipe and a second rotating handle, a through hole with the inner diameter not smaller than that of the internal thread pipe is formed in the second rotating handle, the axis of the through hole formed in the second rotating handle is collinear with that of the internal thread pipe, and included angles between the bottom surface of the internal thread pipe and a plane formed by transversely cutting the supporting piece and the external thread column and the internal thread pipe are all 90 degrees; the second fixed part can press the drag hook of installation on rotating the piece admittedly with external screw thread post threaded connection, and it is fixed to carry out the restriction to the drag hook, guarantees the stable use of drag hook.
A method for using a neurosurgical retractor fixer comprises the following steps:
s1, the annular fixing frame and the operating table are connected into a whole, the sliding parts, the connecting parts and the rotating parts which are the same as the number of the draw hooks to be used are adjacently installed on the annular fixing frame, the connecting parts are rotated to enable the connecting parts to be in threaded connection with the external thread parts arranged at one ends of the sliding parts, the positions of the sliding parts and the rotating parts on the annular fixing frame are adjusted in a sliding mode, the first fixing part is in threaded connection with the internal thread through holes through the external thread rods, and the bottom surfaces of the external thread rods are tightly pressed on the top surfaces of the annular fixing frame.
S2, the adjusting part in the drag hook is arranged on the outer side of the rear limiting block and the front limiting block from top to bottom, the second fixing piece is in threaded connection with the external threaded column, the drag hook is limited to be separated from the rear limiting block and the front limiting block, then the rotating piece is rotated, and the vertical angle of the drag hook is adjusted.
S3, adjusting the position of the draw hook on the rotating part along the radial sliding of the annular fixing frame, so as to adjust the positions of the head part of the draw hook and the head part of the patient, and then screwing the second fixing part to enable the bottom surface of the internal thread tube to tightly press the top surface of the adjusting part, thereby completing the adjustment and the fixation of the draw hook.
S4, pulling the first connecting rod outwards to enable the clamping section to be supported to drive the first rotating seat to generate elastic deformation, enabling the first rotating sphere to move from the meshing section to the sliding section and then to the rotating section, then rotating to a proper angle by taking the first rotating sphere as a fulcrum, pushing the first connecting rod with the adjusted angle to the direction of the meshing section, when the first rotating sphere moves, opening the clamping section to move to the meshing section to be meshed with teeth of the meshing section, meanwhile, resetting the clamping section to clamp the first rotating sphere, matching the clamping section and the first rotating sphere to fix the angle of the first connecting rod, adjusting the angle of the head in the second rotating seat according to the same mode, and further achieving fine adjustment of the angle of the head.
The invention has the beneficial effects that: the sliding part can only move on the annular fixed frame in the circumferential direction around the axis of the annular fixed frame, so that the position of the draw hook is adjusted; the bottom surface of the external thread rod can be neatly attached to the top surface of the annular fixing frame, so that the position of the sliding part on the annular fixing frame is stably limited and fixed; the connecting piece can be in threaded connection with the sliding piece and the connecting piece under the limit of the limit ring and the baffle ring, so that the sliding piece and the connecting piece can be stably connected or quickly detached; the sliding part and the rotating part can be stably connected into a whole under the action of the connecting part, so that the rotating part which is fixed on the annular fixing frame and rotates around the axis of the rotating part at will to adjust the vertical angle of the draw hook is limited, and the draw hook can be stably used at any angle; the drag hook can be stably arranged on the rotating part under the three-point limiting of the rear limiting block and the front limiting block, and the drag hook can be used at the position of the rotating part through the sliding adjustment of the adjusting part; the medical staff can push and pull the rotating head and the first connecting rod, so that the fine adjustment of the angle of the head is realized, the precision of the operation is improved, and the operation quality is improved; the second fixed part can press the drag hook of installation on rotating the piece admittedly with external screw thread post threaded connection, and it is fixed to carry out the restriction to the drag hook, guarantees the stable use of drag hook.
The parts of the device not involved are the same as or can be implemented using prior art.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a longitudinal cross-sectional view of the annular mount of the present invention;
FIG. 3 is a schematic view of the structure of the sliding member of the present invention;
FIG. 4 is a schematic structural view of a first fastener of the present invention;
FIG. 5 is a schematic view of the structure of the connector of the present invention;
FIG. 6 is a schematic view of a rotating member according to the present invention;
FIG. 7 is a schematic structural view of a second fastener of the present invention;
FIG. 8 is a schematic view of the retractor of the present invention;
FIG. 9 is a sectional view showing the construction of the retractor of the present invention;
FIG. 10 is an enlarged view of A in the present invention;
FIG. 11 is an enlarged view of A in a separated state in the present invention;
in the figure: 1. an annular fixing frame; 2. a slider; 201. a sliding groove; 202. an internally threaded through bore; 203. a first end face tooth; 204. an external screw member; 3. a first fixing member; 301. an externally threaded rod; 302. a first stem; 4. a connecting member; 401. a limiting ring; 5. a rotating member; 501. a support member; 502. an externally threaded post; 503. a second end face tooth; 504. a rear limiting block; 505. a front limiting block; 506. a baffle ring; 6. a second fixing member; 601. an internally threaded tube; 602. a second stem; 7. pulling a hook; 701. an adjustment section; 702. a handle portion; 703. a fine adjustment part; 7031. a first rotating base; 70311. an engaging section; 70312. a sliding section; 70313. a rotating section; 70314. a clamping section; 7032. a first rotating sphere; 7033. a first connecting rod; 7034. a second rotating base; 7035. a second rotating sphere; 704. a head portion.
Detailed Description
Referring to fig. 1-11, the present invention provides the following technical solutions: the utility model provides a neurosurgery drag hook fixer, includes annular mount (1), slidable mounting has slider (2) on annular mount (1), internal thread through-hole (202) of the first mounting (3) of threaded connection is seted up to one side of slider (2) top surface, external screw thread spare (204) of threaded connection connecting piece (4) are seted up to the one end of slider (2) side, the fixed first terminal surface tooth (203) that is equipped with of one end of slider (2), connecting piece (4) rotate the outside of installing support piece (501) in rotating piece (5), the one end fixedly connected with of support piece (501) keeps off ring (506), the one end terminal surface of keeping off ring (506) is fixed and is equipped with second terminal surface tooth (503), the top surface fixed mounting of support piece (501) has back spacing block (504) and preceding spacing block (505), the top surface fixedly connected with external screw thread post (502) of back spacing block (504), the side surfaces of the rear limiting block (504) and the front limiting block (505) are slidably connected with the inner wall of an adjusting part (701) in the draw hook (7), and the external threaded column (502) is in threaded connection with a second fixing part (6).
The annular fixing frame (1) is an open circular structure with planes transversely cut on the upper side and the lower side, a sliding groove (201) is horizontally arranged on the sliding piece (2) in a penetrating mode, and the sliding groove (201) is connected with the annular fixing frame (1) in a sliding mode; the sliding part (2) can only move on the annular fixing frame (1) in the circumferential direction around the axis of the annular fixing frame (1), so that the position of the draw hook (7) can be adjusted.
The first fixing piece (3) comprises an external thread rod (301) and a first rotating handle (302), the external thread rod (301) is fixedly connected with the first rotating handle (302), the bottom surface of the external thread rod (301) is a flat plane, the axis of the internal thread through hole (202) is vertical to the plane of the top surface of the annular fixing frame (1), and the internal thread through hole (202) penetrates through the top of the sliding groove (201); the bottom surface of the external thread rod (301) can be neatly attached to the top surface of the annular fixing frame (1), so that the position of the fixed sliding piece (2) on the annular fixing frame (1) is stably limited.
The connecting piece (4) is of an internal thread pipe structure, a limiting ring (401) is fixedly arranged on one side of the inner end face of the connecting piece (4), the baffle ring (506) is of a flat circular plate type structure, the supporting piece (501) is of a circular pipe type structure, a plane is transversely cut at the top of one end, away from the baffle ring (506), of the supporting piece (501), and the inner side face of the connecting piece (4) is in sliding connection with the curved side face of the supporting piece (501); the connecting piece (4) can be in threaded connection with the sliding piece (2) and the connecting piece (4) under the limiting of the limiting ring (401) and the baffle ring (506), so that the sliding piece (2) and the connecting piece (4) can be stably connected or quickly detached.
The first end face teeth (203) are matched and meshed with the second end face teeth (503), and the connecting piece (4) and the supporting piece (501) are sleeved on the outer side of the annular fixing frame (1) and are not in direct contact with the annular fixing frame (1); slider (2) and rotation piece (5) can stabilize the hookup as an organic whole under the effect of connecting piece (4), and then the restriction is fixed and is rotated at will around self axis on annular mount (1) and rotate piece (5) with the perpendicular angle of adjusting drag hook (7), makes drag hook (7) stable work under arbitrary angle use.
The drag hook (7) comprises an adjusting part (701), a handle part (702), a fine adjusting part (703) and a head part (704), the handle part (702) is fixedly connected with the rear end of the adjusting part (701), the adjusting part (701) is provided with a through groove structure which is formed by semi-cylindrical grooves at two ends and a square groove in the middle in a vertical run-through manner, the inner diameter of a through groove on the adjusting part (701) is the same as the diameter of the rear limiting block (504), the rear limiting block (504) and the front limiting block (505) are both flat cylinder structures, the number of the front limiting blocks (505) is two, the maximum linear distance between the side surfaces of the two front limiting blocks (505) is the same as the diameter of the rear limiting block (504), and the extension line of the middle point of the straight line connected with the circle centers of the bottom surfaces of the two front limiting blocks (505) and the straight line connected with the circle center of the bottom surface of the rear limiting block (504) passes through the axis of the annular fixing frame (1); the draw hook (7) can be stably arranged on the rotating part (5) under the three-point limiting of the rear limiting block (504) and the front limiting block (505), and the draw hook (7) can be used at the position of the rotating part (5) through the sliding adjustment of the adjusting part (701).
The fine adjustment part (703) comprises a first rotating seat (7031), a first rotating sphere (7032), a first connecting rod (7033), a second rotating seat (7034) and a second rotating sphere (7035), the rear end of the first rotating seat (7031) is fixedly connected with the front end of the adjusting part (701), the first rotating seat (7031) is identical to the 7034 in structure size, the first rotating sphere (7032) is identical to the second rotating sphere (7035) in structure size, the first rotating seat (7031) is composed of an engagement section (70311), a sliding section (70312), a rotating section (70313) and a clamping section (70314), the engagement section (70311) and the rotating section (70313) are both of a hemispherical groove structure, the sliding section (70312) is of a circular tube type structure which is identical to the inner diameters of the engagement section (70311) and the rotating section (70313), the first rotating sphere (7032) is of a spherical structure and the spherical surface is provided with a spherical surface, the inner wall of the meshing section (70311) is provided with a tooth structure meshed with the first rotating sphere (7032), the first rotating sphere (7032) is in clearance fit with the rotating section (70313), the front end of the rotating section (70313) is provided with a through hole which can enable the first connecting rod (7033) to rotate by taking the first rotating sphere (7032) as a fulcrum and can not enable the first rotating sphere (7032) to fall off the first rotating seat (7031) along the axis of the first rotating seat (7031), the clamping section (70314) is of an annular convex structure, the clamping section (70314) is fixedly arranged at one end of the sliding section (70312) connected with the rotating section (70313), two ends of the first connecting rod (7033) are respectively and fixedly connected with the side surface of the first rotating sphere (7032) and the rear end surface of the second rotating seat (7034), the second rotating sphere (7035) is installed in a second rotating seat (7034), and the side surface of the second rotating sphere (7035) is fixedly connected with the rear end of the joint part (704); but medical personnel push-and-pull rotates head (704), head bar (7033), realizes the fine setting to head (704) angle, improves the fineness of operation, improves the operation quality.
The second fixing piece (6) comprises an internal threaded pipe (601) and a second rotating handle (602), a through hole with the inner diameter not smaller than that of the internal threaded pipe (601) is formed in the second rotating handle (602), the axis of the through hole formed in the second rotating handle (602) is collinear with that of the internal threaded pipe (601), and the included angle between the bottom surface of the internal threaded pipe (601), the plane transversely cut on the supporting piece (501) and the external threaded column (502) and the internal threaded pipe (601) is 90 degrees; second fixed part (6) can press with external screw thread post (502) threaded connection drag hook (7) of installation on rotating piece (5) admittedly, and it is fixed to restrict drag hook (7), guarantees the stable use of drag hook (7).
A method for using a neurosurgical retractor fixer comprises the following steps:
s1, the annular fixing frame (1) is connected with an operating table into a whole, the sliding parts (2) with the same number as the draw hooks (7) to be used, the connecting parts (4) and the rotating parts (5) are adjacently installed on the annular fixing frame (1), the connecting parts (4) are rotated to enable the connecting parts (4) to be in threaded connection with the external thread parts (204) arranged at one ends of the sliding parts (2), the positions of the sliding parts (2) and the rotating parts (5) on the annular fixing frame (1) are adjusted in a sliding mode, the first fixing parts (3) are in threaded connection with the internal thread through holes (202) through the external thread rods (301), and the bottom surfaces of the external thread rods (301) are enabled to be tightly pressed on the top surface of the annular fixing frame (1).
S2, installing the adjusting part (701) in the draw hook (7) at the outer sides of the rear limiting block (504) and the front limiting block (505) from top to bottom, connecting the second fixing piece (6) with the external threaded column (502), limiting the draw hook (7) to be separated from the rear limiting block (504) and the front limiting block (505), and then rotating the rotating piece (5) to adjust the vertical angle of the draw hook (7).
S3, the position of the draw hook (7) on the rotating part (5) is adjusted by sliding along the radial direction of the annular fixing frame (1), so that the head of the draw hook (7) and the position of the head of the patient are adjusted, then the second fixing part (6) is screwed down, the bottom surface of the internal thread pipe (601) is tightly pressed on the top surface of the adjusting part (701), and the adjustment and the fixation of the draw hook (7) are completed.
S4, dragging the first connecting rod (7033) outward to make the fastening section (70314) supported by (7032) drive the first rotating seat (7031) to generate elastic deformation, so that the first rotating sphere (7032) moves from the meshing section (70311) to the sliding section (70312) and then to the rotating section (70313), then the first rotating sphere (7032) is used as a fulcrum to rotate (7033) to a proper angle, the first connecting rod (7033) with the adjusted angle is pushed to the direction of the meshing section (70311), when the first rotating sphere (7032) moves, the clamping section (70314) is propped open to move to the meshing section (70311) to be meshed with the teeth of the meshing section (70311), meanwhile, the clamping section (70314) resets and clamps the first rotating ball (7032), the first rotating ball and the first connecting rod are matched with each other to fix the angle of the first connecting rod (7033), and the angle of the head (704) in the second rotating seat (7034) is adjusted in the same way, so that the fine adjustment of the angle of the head (704) is realized.
The working principle and the using process of the invention are as follows: the annular fixing frame (1) is connected with an operating table into a whole, the sliding parts (2), the connecting parts (4) and the rotating parts (5) which are the same as the drag hooks (7) to be used are adjacently arranged on the annular fixing frame (1), the connecting parts (4) are rotated, the connecting parts (4) are in threaded connection with the external thread parts (204) arranged at one ends of the sliding parts (2), the positions of the sliding parts (2) and the rotating parts (5) on the annular fixing frame (1) are adjusted in a sliding mode, the first fixing part (3) is in threaded connection with the internal thread through hole (202) through the external thread rod (301), and the bottom surface of the external thread rod (301) is tightly pressed on the top surface of the annular fixing frame (1); installing an adjusting part (701) in the draw hook (7) at the outer sides of a rear limiting block (504) and a front limiting block (505) from top to bottom, connecting a second fixing piece (6) with an external threaded column (502) in a threaded manner, limiting the draw hook (7) to be separated from the rear limiting block (504) and the front limiting block (505), and then rotating a rotating piece (5) to adjust the vertical angle of the draw hook (7); the position of the draw hook (7) on the rotating part (5) is adjusted by sliding along the radial direction of the annular fixing frame (1), so that the head part of the draw hook (7) and the head part of a patient are adjusted, then the second fixing part (6) is screwed down, so that the bottom surface of the internal thread pipe (601) is tightly pressed on the top surface of the adjusting part (701), and the adjustment and the fixation of the draw hook (7) are completed; the first connecting rod (7033) is pulled outwards, so that the clamping section (70314) is supported by the first rotating seat (7031) to generate elastic deformation, the first rotating ball body (7032) is moved to the sliding section (70312) from the meshing section (70311) and then moved to the rotating section (70313), then the first rotating sphere (7032) is used as a fulcrum to rotate (7033) to a proper angle, the first connecting rod (7033) with the adjusted angle is pushed to the direction of the meshing section (70311), when the first rotating sphere (7032) moves, the clamping section (70314) is propped open to move to the meshing section (70311) to be meshed with the teeth of the meshing section (70311), meanwhile, the clamping section (70314) resets and clamps the first rotating ball (7032), the first rotating ball and the first connecting rod are matched with each other to fix the angle of the first connecting rod (7033), and the angle of the head (704) in the second rotating seat (7034) is adjusted in the same way, so that the fine adjustment of the angle of the head (704) is realized.
Claims (9)
1. A neurosurgery drag hook fixer which characterized in that: including annular mount, slidable mounting has the slider on the annular mount, the internal thread through-hole of the first mounting of threaded connection is seted up to one side of slider top surface, the external screw thread spare of threaded connection connecting piece is seted up to the one end of slider side, the fixed first terminal surface tooth that is equipped with of one end of slider, the connecting piece rotates the support piece's of installing in rotating the piece the outside, support piece's one end fixedly connected with keeps off the ring, the fixed second terminal surface tooth that is equipped with of one end terminal surface that keeps off the ring, support piece's top surface fixed mounting has back stopper and preceding stopper, the top surface fixedly connected with external screw thread post of back stopper, the inner wall of the regulation portion in the side sliding connection drag hook of back stopper, preceding stopper, external screw thread post threaded connection has the second mounting.
2. A retractor holder according to claim 1 wherein: the annular fixing frame is an open annular structure with planes transversely cut on the upper side and the lower side, the sliding piece is horizontally provided with a sliding groove in a through mode, and the sliding groove is connected with the annular fixing frame in a sliding mode.
3. A retractor holder according to claim 1 wherein: first mounting includes external screw thread pole and first turning handle, the first turning handle of external screw thread pole fixed connection, the bottom surface of external screw thread pole is smooth plane, the plane of the axis perpendicular to annular fixed frame top surface of internal thread through-hole, the internal thread through-hole link up the top of sliding tray.
4. A retractor holder according to claim 1 wherein: the connecting piece is of an internal thread pipe structure, a limiting ring is fixedly arranged on one side of an inner end face of the connecting piece, the baffle ring is of a flat circular plate type structure, the supporting piece is of a circular pipe type structure, a plane is transversely cut at the top of one end, far away from the baffle ring, of the supporting piece, and the inner side face of the connecting piece is in sliding connection with the curved surface side face of the supporting piece.
5. A retractor holder according to claim 1 wherein: first terminal surface tooth adaptation interlock second terminal surface tooth, connecting piece and support piece all suit are in the outside of annular mount and do not produce direct contact with annular mount.
6. A retractor holder according to claim 1 wherein: the drag hook includes regulating part, handle portion, fine setting portion, head, the rear end of handle portion fixed connection regulating part, the logical groove structure of seting up the semi-cylindrical groove by both ends and the square groove in middle of having a perfect understanding from top to bottom of regulating part, the internal diameter that leads to the groove in the regulating part is the same with the diameter of back stopper, preceding stopper are flat cylinder structure, the quantity of preceding stopper is two, and the biggest linear distance of the side of two preceding stoppers is the same with the diameter of back stopper, and the axis that the linear extension line that the mid point of the straight line that the centre of a circle of two preceding stopper bottom surfaces is connected and the bottom surface centre of a circle of back stopper is connected passes annular mount.
7. A retractor holder as claimed in claim 6 wherein: the fine adjustment part comprises a first rotating seat, a first rotating sphere, a first connecting rod, a second rotating seat and a second rotating sphere, the rear end of the first rotating seat is fixedly connected with the front end of the adjustment part, the first rotating seat is the same as the structure in size, the first rotating sphere is the same as the second rotating sphere in structure in size, the first rotating seat is composed of a meshing section, a sliding section, a rotating section and a clamping section, the meshing section and the rotating section are both of a hemispherical groove structure, the sliding section is of a circular tube structure with the same inner diameter as the meshing section and the rotating section, the first rotating sphere is of a spherical structure, tooth grooves are formed in the spherical surface of the first rotating sphere, a tooth structure meshed with the first rotating sphere is arranged on the inner wall of the meshing section, the first rotating sphere is in clearance fit with the rotating section, the front end of the rotating section is provided with the axis of the first rotating seat, so that the first connecting rod can rotate around the first rotating sphere as a fulcrum and the first rotating sphere cannot be removed from the first rotating sphere The clamping section is fixedly arranged at one end of the sliding section connected with the rotating section, two ends of the first connecting rod are respectively and fixedly connected with the side face of the first rotating sphere and the rear end face of the second rotating seat, the second rotating sphere is installed in the second rotating seat, and the side face of the second rotating sphere is fixedly connected with the rear end of the head.
8. A retractor holder according to claim 1 wherein: the second fixing piece comprises an internal thread pipe and a second rotating handle, a through hole with the inner diameter not smaller than that of the internal thread pipe is formed in the second rotating handle, the axis of the through hole formed in the second rotating handle is collinear with that of the internal thread pipe, and the included angle between the plane formed by transversely cutting the bottom surface of the internal thread pipe and the supporting piece and the external thread column and the included angle between the plane formed by transversely cutting the bottom surface of the internal thread pipe and the supporting piece and the internal thread pipe are both 90 degrees.
9. A method of using a neurosurgical retractor holder, the method of using being adapted for use with a neurosurgical retractor holder according to any one of claims 1 to 8, wherein: the method comprises the following steps:
s1, connecting the annular fixing frame and the operating table into a whole, adjacently installing the sliding parts, the connecting parts and the rotating parts which are the same as the number of the draw hooks to be used on the annular fixing frame, rotating the connecting parts to enable the connecting parts to be in threaded connection with the external thread parts arranged at one end of the sliding parts, adjusting the positions of the sliding parts and the rotating parts on the annular fixing frame in a sliding mode, connecting the first fixing part with the internal thread through holes through the external thread rods in a threaded mode, and enabling the bottom surfaces of the external thread rods to tightly press the top surfaces of the annular fixing frame;
s2, mounting the adjusting part in the draw hook on the outer sides of the rear limiting block and the front limiting block from top to bottom, connecting the second fixing piece with the external threaded column through threads, limiting the draw hook to be separated from the rear limiting block and the front limiting block, and then rotating the rotating piece to adjust the vertical angle of the draw hook;
s3, the position of the draw hook on the rotating part is adjusted by sliding along the radial direction of the annular fixing frame, so that the positions of the head part of the draw hook and the head part of the patient are adjusted, and then the second fixing part is screwed down to enable the bottom surface of the internal threaded pipe to be tightly pressed on the top surface of the adjusting part, so that the adjustment and the fixation of the draw hook are completed;
s4, pulling the first connecting rod outwards to enable the clamping section to be supported to drive the first rotating seat to generate elastic deformation, enabling the first rotating sphere to move from the meshing section to the sliding section and then to the rotating section, then rotating to a proper angle by taking the first rotating sphere as a fulcrum, pushing the first connecting rod with the adjusted angle to the direction of the meshing section, when the first rotating sphere moves, opening the clamping section to move to the meshing section to be meshed with teeth of the meshing section, meanwhile, resetting the clamping section to clamp the first rotating sphere, matching the clamping section and the first rotating sphere to fix the angle of the first connecting rod, adjusting the angle of the head in the second rotating seat according to the same mode, and further achieving fine adjustment of the angle of the head.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111207549.4A CN113768561B (en) | 2021-10-18 | 2021-10-18 | Neurosurgery retractor fixer and using method |
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| CN202111207549.4A CN113768561B (en) | 2021-10-18 | 2021-10-18 | Neurosurgery retractor fixer and using method |
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| CN101947986B (en) * | 2010-10-04 | 2012-04-18 | 黄利明 | Adjustable electric-vehicle and motorcycle trunk fixing mechanism |
| CN210948126U (en) * | 2019-09-29 | 2020-07-07 | 滦州市捷澳建材有限公司 | Temperature sensing, positioning and window closing device for fireproof window |
| CN213249355U (en) * | 2020-05-11 | 2021-05-25 | 河北医科大学第三医院 | Multifidus muscle retractor |
| CN111975641A (en) * | 2020-08-25 | 2020-11-24 | 福清市鸿远科技有限公司 | Efficient and uniform sand blasting machine for surfaces of mechanical parts |
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| JPH0759785A (en) * | 1993-08-18 | 1995-03-07 | Ethicon Inc | Support mechanism for supporting surgical instrument |
| CN108814659A (en) * | 2018-05-02 | 2018-11-16 | 郭良文 | A kind of neurosurgery retractor holder |
| CN210843235U (en) * | 2019-09-18 | 2020-06-26 | 西安交通大学医学院第一附属医院 | Adjustable neurosurgery nerve retractor |
| CN211658232U (en) * | 2020-02-08 | 2020-10-13 | 黄国洲 | Retractor fixer for neurosurgery clinical operation |
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