CN111920501B - Adjustable intraoperative temporary fixing device - Google Patents
Adjustable intraoperative temporary fixing device Download PDFInfo
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- CN111920501B CN111920501B CN202010839548.0A CN202010839548A CN111920501B CN 111920501 B CN111920501 B CN 111920501B CN 202010839548 A CN202010839548 A CN 202010839548A CN 111920501 B CN111920501 B CN 111920501B
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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
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
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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
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B2017/567—Joint mechanisms or joint supports in addition to the natural joints and outside the joint gaps
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- Orthopedic Medicine & Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
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Abstract
The invention relates to an adjustable intraoperative temporary fixing device which comprises a left movable rod, a right movable rod and an intermediate connecting frame, wherein the intermediate connecting frame is arranged between the left movable rod and the right movable rod and comprises a left supporting rod, a right supporting rod and a connecting rod, one end of the left supporting rod is connected onto the connecting rod, and the other end of the left supporting rod is connected with the left movable rod; one end of the right supporting rod is connected to the connecting rod, and the other end of the right supporting rod is connected with the right movable rod; the left support rod and the right support rod are both of a hollow structure, a left screw rod penetrates through the left support rod along the axial direction of the left support rod, and the left movable rod is connected to the end part of the left support rod through the left screw rod; the right screw rod penetrates through the right supporting rod along the axial direction of the right supporting rod, and the right movable rod is connected to the end part of the right supporting rod through the right screw rod.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an adjustable intraoperative temporary fixing device.
Background
The temporary fixation concept and technology are widely applied in the field of spinal surgeries, and can be temporarily fixed in spinal deformity orthopedic surgeries, spinal tumor nidus excision surgeries and spinal infection debridement surgeries to maintain the stability of the spine and avoid spinal cord or nerve root injuries caused by spinal rotation, displacement and the like. The temporary fixing rod (or device) in the prior art is a titanium rod bent by an operator according to the curvature technique of a corresponding spinal segment, and because each titanium rod has a certain length, a plurality of pre-bent temporary fixing titanium rods are generally required to be equipped for selection and use in the operation.
During long-term clinical use, the applicant has found that there are several drawbacks to such temporarily fixed titanium rods of the prior art. Firstly, the radian of the titanium rod is limited, the space between the titanium rod and the posterior structure of the spine is limited after the titanium rod is placed, the operation is affected, and if tumors widely invade the posterior bony structure of the spine, the titanium rod needs to be continuously disassembled and assembled for conveniently treating the part shielded by the temporary fixing rod, so that the titanium rod is time-consuming and unsafe. Meanwhile, the limited space between the temporary fixing rod and the spine may prevent a doctor from taking out a centrum massive specimen in the posterior path.
Disclosure of Invention
The invention aims to provide an adjustable intraoperative temporary fixing device, and solves the technical problems of how to overcome the defects of a temporary fixing rod in the prior art, avoid a structure behind a spine and reserve a space for operation.
The invention aims to solve the defects of the prior art and provides an adjustable intraoperative temporary fixing device which comprises a left movable rod, a right movable rod and an intermediate connecting frame, wherein the intermediate connecting frame is arranged between the left movable rod and the right movable rod, the intermediate connecting frame comprises a left supporting rod, a right supporting rod and a connecting rod, one end of the left supporting rod is connected to the connecting rod, and the other end of the left supporting rod is connected with the left movable rod; one end of the right supporting rod is connected to the connecting rod, and the other end of the right supporting rod is connected with the right movable rod; the left support rod and the right support rod are both of a hollow structure, a left screw rod penetrates through the left support rod along the axial direction of the left support rod, and the left movable rod is connected to the end part of the left support rod through the left screw rod; the right screw rod penetrates through the right supporting rod along the axial direction of the right supporting rod, and the right movable rod is connected to the end part of the right supporting rod through the right screw rod.
Preferably, the left movable rod and the right movable rod are both titanium rods.
Further preferably, the end of the left movable rod is provided with a left connecting piece, and the bottom of the left connecting piece is provided with a left step part extending along the direction perpendicular to the central axis of the left movable rod; the left support rod is characterized in that a left clamping groove is formed in the end portion of one end of the left support rod, and the left step portion is clamped in the left clamping groove to achieve positioning and connection of the left movable rod relative to the left support rod.
The end part of the right movable rod is provided with a right connecting piece, and the bottom of the right connecting piece is provided with a right step part extending along the direction vertical to the central axis of the right movable rod; the right supporting rod is provided with a right clamping groove at one end, and the right step part is clamped in the right clamping groove to realize the positioning and connection of the right movable rod relative to the right supporting rod.
The bottom of the left step part is provided with a left screw hole; the left screw comprises a left stud and a left base, and the left stud extends along the direction vertical to the left base; the periphery wall of left double-screw bolt on be provided with the external screw thread, the inside of left screw be provided with the internal thread, twist left screw through the tip with left double-screw bolt and be connected in order to realize left activity stick and left bracing piece.
The bottom of the right step part is provided with a right screw hole; the right screw comprises a right stud and a right base, and the right stud extends along the direction vertical to the right base; the periphery wall of right double-screw bolt on be provided with the external screw thread, the inside of right screw be provided with the internal thread, twist right screw in order to realize the connection of right activity stick and right bracing piece through the tip with right double-screw bolt.
The left support rod is connected with the connecting rod through a left mounting groove piece and a left knob screw, the left mounting groove piece is clamped on the outer peripheral wall of the connecting rod, a left mounting screw hole is formed in the side wall of the left mounting groove piece, and the left knob screw is screwed in the left mounting screw hole to achieve positioning and connection of the left support rod and the connecting rod.
The right supporting rod is connected with the connecting rod through a right mounting groove piece and a right-handed button screw rod, the right mounting groove piece is clamped on the peripheral wall of the connecting rod, a right mounting screw hole is formed in the side wall of the right mounting groove piece, and the right-handed button screw rod is screwed in the right mounting screw hole to realize the positioning and connection of the right supporting rod and the connecting rod.
The connecting rod is a toothed rod.
When the left-handed button screw and the right-handed button screw are loosened, the left mounting groove part and the right mounting groove part can slide along the length direction of the connecting rod; when the left-handed button screw and the right-handed button screw are screwed, the left mounting groove piece and the right mounting groove piece are fixed on the connecting rod, so that the left supporting rod, the right supporting rod and the connecting rod are fixedly connected.
Advantageous effects
Compared with the prior art, the invention has the beneficial effects that:
the adjustable intraoperative temporary fixing device adopts an adjustable device which is separated from the head and the tail and is connected through an intermediate connecting frame, and the titanium rods at the head end and the tail end can be respectively fixed on the connecting frame by selecting proper diameter and length according to intraoperative requirements. The length of the middle connecting device can be adjusted along the longitudinal direction, the rear structure of the spine is avoided, and a space is reserved for operation.
Through the design of the link in the middle of, can avoid because of the operation difficulty that interim fixed rod and backbone rear structure's clearance is too narrow to lead to, during the use in the art, the intermediate junction frame is the shape of falling U and strides the operation region, reserves sufficient space for operation.
The head and the tail are designed as detachable movable rods, so that the screw driver is suitable for the conditions of different kinds of screws in operation, and the application range is wide.
The middle connecting frame is of a telescopic design, and the area spanned can be adjusted according to specific requirements in the operation.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
Fig. 1 is a schematic structural view of an adjustable intraoperative temporary fixation device of the present invention.
Fig. 2 is an exploded view of the adjustable intraoperative temporary fixation device of the present invention.
Fig. 3 is a front view of the adjustable intraoperative temporary fixation device of the present invention.
Fig. 4 is a sectional view taken in the direction of a-a in fig. 3.
Detailed Description
The present invention is described in more detail below to facilitate an understanding of the present invention.
As shown in fig. 1 to 4, the adjustable intraoperative temporary fixation device of the present invention includes a left movable rod 1, a right movable rod 11 and an intermediate connecting frame 2, the intermediate connecting frame 2 is disposed between the left movable rod 1 and the right movable rod 11, the intermediate connecting frame 2 includes a left support rod 21, a right support rod 22 and a connecting rod 23, one end of the left support rod 21 is connected to the connecting rod 23, and the other end of the left support rod 21 is connected to the left movable rod 1; one end of the right supporting rod 22 is connected to the connecting rod 23, and the other end of the right supporting rod 22 is connected with the right movable rod 11; the left support rod 21 and the right support rod 22 are both of a hollow structure, a left screw rod 4 penetrates through the left support rod 21 along the axial direction of the left support rod 21, and the left movable rod 1 is connected to the end part of the left support rod 21 through the left screw rod 4; the right screw 44 penetrates through the right support rod 22 along the axial direction of the right support rod 22, and the right movable rod 11 is connected to the end of the right support rod 22 through the right screw 44.
Preferably, the left movable rod 1 and the right movable rod 11 are both titanium rods.
Further preferably, the end of the left movable rod 1 is provided with a left connecting piece 3, and the bottom of the left connecting piece 3 is provided with a left step 31 extending along a direction perpendicular to the central axis of the left movable rod 1; the end part of one end of the left support rod 21 is provided with a left clamping groove 211, and the left step part 31 is clamped in the left clamping groove 211 so as to realize the positioning and connection of the left movable rod 1 relative to the left support rod 21.
The end of the right movable rod 11 is provided with a right connecting piece 33, and the bottom of the right connecting piece 33 is provided with a right step part 331 extending along the direction perpendicular to the central axis of the right movable rod 11; the end part of one end of the right support rod 22 is provided with a right clamping groove 221, and the right step part 331 is clamped in the right clamping groove 221 so as to realize the positioning and connection of the right movable rod 11 relative to the right support rod 22.
The bottom of the left step part 31 is provided with a left screw hole 32; the left screw rod 4 comprises a left stud 41 and a left base 42, and the left stud 41 extends along a direction perpendicular to the left base 42; the outer peripheral wall of the left stud 41 is provided with an external thread, the inner part of the left screw hole 32 is provided with an internal thread, and the end part of the left stud 41 is screwed into the left screw hole 32 to realize the connection of the left movable rod 1 and the left support rod 21.
The bottom of the right step part 331 is provided with a right screw hole 332; the right screw 44 includes a right stud 441 and a right base 442, the right stud 441 extends along a direction perpendicular to the right base 442; the outer peripheral wall of the right stud 441 is provided with an external thread, the inner part of the right screw hole 332 is provided with an internal thread, and the end part of the right stud 441 is screwed into the right screw hole 332 to realize the connection between the right movable rod 11 and the right support rod 22.
Left branch vaulting pole 21 be connected with connecting rod 23 through left installation groove spare 6 and left-handed button screw rod 5, left installation groove spare block on the periphery wall of connecting rod 23, be provided with left installation screw on the lateral wall of this left installation groove spare, left-handed button screw rod 5 screw up in this left installation screw, realize left branch vaulting pole 21 and connecting rod 23's location and be connected.
The right branch vaulting pole 22 be connected with connecting rod 23 through right side installation groove spare 66 and dextrorotation button screw rod 55, right side installation groove spare block on the periphery wall of connecting rod 23, be provided with right side installation screw on the lateral wall of this right side installation groove spare, dextrorotation button screw rod 55 screw up in this right side installation screw, realize the location and the connection of right branch vaulting pole 22 and connecting rod 23.
The connecting rod 23 is a toothed rod.
When the left-handed button screw 5 and the right-handed button screw 55 are loosened, the left mounting groove part 6 and the right mounting groove part 66 can slide along the length direction of the connecting rod 23; when the left-handed button screw 5 and the right-handed button screw 55 are screwed, the left installation groove part 6 and the right installation groove part 66 are fixed on the connecting rod 23, so that the left support rod 21, the right support rod 22 and the connecting rod 23 are fixedly connected.
In the use process of the adjustable intraoperative temporary fixing device, the movable rods at the head end and the tail end (namely the left movable rod 1 and the right movable rod 11) are fixed on pedicle screws which are planted in an operation and then connected end to end through the connecting frame. The movable rod is connected with the connecting frame through threads, and the movable rod can be loosened and tightened by rotating the long-arm screw rods (namely the left screw rod 4 and the right screw rod 44). The movable rods with different diameters and lengths can be installed according to the actual requirements of the head and the tail, so that the movable rod is suitable for different intraoperative conditions. The middle connecting frame 2 is telescopic, and the length can be adjusted along the insection long rod by rotating the knob of the left-handed knob screw 5 and/or the right-handed knob screw 55 so as to reserve sufficient space to facilitate operation.
As an alternative design detail, the invention may also provide that the connection between the movable bar and the connection frame is arranged as a fixed connection, non-detachable.
The foregoing describes preferred embodiments of the present invention, but is not intended to limit the invention thereto. Modifications and variations of the embodiments disclosed herein may be made by those skilled in the art without departing from the scope and spirit of the invention.
Claims (7)
1. An adjustable temporary fixing device in operation is characterized in that the adjustable temporary fixing device in operation comprises a left movable rod, a right movable rod and an intermediate connecting frame, the intermediate connecting frame is arranged between the left movable rod and the right movable rod, the intermediate connecting frame comprises a left supporting rod, a right supporting rod and a connecting rod, one end of the left supporting rod is connected to the connecting rod, and the other end of the left supporting rod is connected with the left movable rod; one end of the right supporting rod is connected to the connecting rod, and the other end of the right supporting rod is connected with the right movable rod; the left support rod and the right support rod are both of a hollow structure, a left screw rod penetrates through the left support rod along the axial direction of the left support rod, and the left movable rod is connected to the end part of the left support rod through the left screw rod; the right screw rod penetrates through the right supporting rod along the axial direction of the right supporting rod, and the right movable rod is connected to the end part of the right supporting rod through the right screw rod;
the left movable rod and the right movable rod are both titanium rods;
the end part of the left movable rod is provided with a left connecting piece, and the bottom of the left connecting piece is provided with a left step part extending along the direction vertical to the central axis of the left movable rod; the end part of one end of the left supporting rod is provided with a left clamping groove, and the left step part is clamped in the left clamping groove so as to realize the positioning and connection of the left movable rod relative to the left supporting rod;
the end part of the right movable rod is provided with a right connecting piece, and the bottom of the right connecting piece is provided with a right step part extending along the direction vertical to the central axis of the right movable rod; the right supporting rod is provided with a right clamping groove at one end, and the right step part is clamped in the right clamping groove to realize the positioning and connection of the right movable rod relative to the right supporting rod.
2. The adjustable intraoperative temporary fixing device according to claim 1, wherein a left screw hole is formed at the bottom of the left step part; the left screw comprises a left stud and a left base, and the left stud extends along the direction vertical to the left base; the periphery wall of left double-screw bolt on be provided with the external screw thread, the inside of left screw be provided with the internal thread, twist left screw through the tip with left double-screw bolt and be connected in order to realize left activity stick and left bracing piece.
3. The adjustable intraoperative temporary fixing device according to claim 2, wherein a right screw hole is formed at the bottom of the right step part; the right screw comprises a right stud and a right base, and the right stud extends along the direction vertical to the right base; the periphery wall of right double-screw bolt on be provided with the external screw thread, the inside of right screw be provided with the internal thread, twist right screw in order to realize the connection of right activity stick and right bracing piece through the tip with right double-screw bolt.
4. The adjustable intraoperative temporary fixing device as claimed in claim 3, wherein the left support rod is connected with the connecting rod through a left mounting groove member and a left knob screw, the left mounting groove member is clamped on the outer peripheral wall of the connecting rod, a left mounting screw hole is formed in the side wall of the left mounting groove member, and the left knob screw is screwed in the left mounting screw hole to realize the positioning and connection of the left support rod and the connecting rod.
5. The adjustable intraoperative temporary fixing device as claimed in claim 4, wherein the right supporting rod is connected with the connecting rod through a right mounting groove member and a right-handed button screw rod, the right mounting groove member is clamped on the outer peripheral wall of the connecting rod, a right mounting screw hole is formed in the side wall of the right mounting groove member, and the right-handed button screw rod is screwed in the right mounting screw hole to realize the positioning and connection of the right supporting rod and the connecting rod.
6. The adjustable intraoperative temporary fixation device of claim 1, wherein the connecting rod is a toothed rod.
7. The adjustable intraoperative temporary fixation device according to claim 5, wherein when the left and right button screws are loosened, the left and right mounting channel members can slide along the length direction of the connecting rod; when the left-handed button screw and the right-handed button screw are screwed, the left mounting groove piece and the right mounting groove piece are fixed on the connecting rod, so that the left supporting rod, the right supporting rod and the connecting rod are fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010839548.0A CN111920501B (en) | 2020-08-19 | 2020-08-19 | Adjustable intraoperative temporary fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010839548.0A CN111920501B (en) | 2020-08-19 | 2020-08-19 | Adjustable intraoperative temporary fixing device |
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| Publication Number | Publication Date |
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| CN111920501A CN111920501A (en) | 2020-11-13 |
| CN111920501B true CN111920501B (en) | 2022-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010839548.0A Active CN111920501B (en) | 2020-08-19 | 2020-08-19 | Adjustable intraoperative temporary fixing device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106073874A (en) * | 2016-06-08 | 2016-11-09 | 无锡市闻泰百得医疗器械有限公司 | A kind of pedicle screw fixation system relocation device |
| CN206482644U (en) * | 2016-11-03 | 2017-09-12 | 林文波 | A kind of split type Ti alloy skull bone distraction apparatus |
| US9980755B2 (en) * | 2016-03-29 | 2018-05-29 | Globus Medical, Inc. | Revision connectors, systems, and methods thereof |
| CN208942335U (en) * | 2018-07-27 | 2019-06-07 | 中国医学科学院北京协和医院 | Spinal internal fixation system |
| CN209048272U (en) * | 2018-05-11 | 2019-07-02 | 贾建国 | A kind of universal joint device of orthopedic external fixation needle |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102499744B (en) * | 2011-09-30 | 2014-07-16 | 许光昶 | Universal vertebral body reduction device for orthopedic vertebral column surgery |
| CN205903298U (en) * | 2016-06-08 | 2017-01-25 | 无锡市闻泰百得医疗器械有限公司 | Excellent headtotail pole of backbone nail |
| CN208958288U (en) * | 2018-07-03 | 2019-06-11 | 重庆市中医院 | The outer fixed reset bracket of operation |
-
2020
- 2020-08-19 CN CN202010839548.0A patent/CN111920501B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9980755B2 (en) * | 2016-03-29 | 2018-05-29 | Globus Medical, Inc. | Revision connectors, systems, and methods thereof |
| CN106073874A (en) * | 2016-06-08 | 2016-11-09 | 无锡市闻泰百得医疗器械有限公司 | A kind of pedicle screw fixation system relocation device |
| CN206482644U (en) * | 2016-11-03 | 2017-09-12 | 林文波 | A kind of split type Ti alloy skull bone distraction apparatus |
| CN209048272U (en) * | 2018-05-11 | 2019-07-02 | 贾建国 | A kind of universal joint device of orthopedic external fixation needle |
| CN208942335U (en) * | 2018-07-27 | 2019-06-07 | 中国医学科学院北京协和医院 | Spinal internal fixation system |
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| CN111920501A (en) | 2020-11-13 |
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