CN110693631B - Intervertebral fusion device under inverse insertion type intervertebral foramen mirror - Google Patents
Intervertebral fusion device under inverse insertion type intervertebral foramen mirror Download PDFInfo
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- CN110693631B CN110693631B CN201910990039.5A CN201910990039A CN110693631B CN 110693631 B CN110693631 B CN 110693631B CN 201910990039 A CN201910990039 A CN 201910990039A CN 110693631 B CN110693631 B CN 110693631B
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- fusion device
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- connecting rod
- loop bar
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
- A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
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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
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets 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
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
- A61B2017/0034—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means adapted to be inserted through a working channel of an endoscope
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Neurology (AREA)
- Heart & Thoracic Surgery (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Medical Informatics (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Vascular Medicine (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses an intervertebral fusion device under an inverse insertion type intervertebral foramen mirror, which belongs to the field of surgical instruments and comprises a handle, a connecting rod, a loop bar and a fusion device body, wherein one side of a fixed seat, which is far away from the loop bar, is provided with two fixing rods for fixing the fusion device body; the fusion device body is of a bullet-shaped structure, inverted teeth are arranged on the upper surface and the lower surface of the fusion device body, fixing grooves are further formed in two sides of the tail end of the fusion device body, a thread groove is formed in the center of the tail end of the fusion device body, a clamping fork fixing component is arranged at one end of a hollow part of a connecting rod, external threads are arranged on a solid part of the connecting rod and can be connected with the fusion device, after the hollow part of the connecting rod is connected with the fusion device body, the solid part of the connecting rod with a handle can be reversely inserted into a spinal endoscope instrument channel, and is sleeved into the tail end of the fusion device from the hollow part of the connecting rod through the rear end of the endoscope instrument channel.
Description
Technical Field
The invention relates to the field of surgical instruments, in particular to an intervertebral fusion device under an inverse insertion type intervertebral foramen mirror.
Background
Degenerative lumbar vertebra diseases including herniated disc, spinal stenosis, segmental instability, degenerative slippage, degenerative scoliosis and the like are common diseases in middle-aged and elderly people. The lumbar fusion operation required by the unstable person between the vertebras becomes common knowledge when the internal fixation is reduced, the purpose of the lumbar interbody fusion operation is to prevent the instability from degeneration from further developing, and the stability reconstruction is carried out through an operation method, so that the process of the intervertebral fusion is promoted, because the required fusion devices are different in size and size among patients, the two fusion devices are required to be plugged into some patients, the two fusion devices can only be gradually put into the existing tools on the market, the first fusion device can obstruct the second fusion device when the two fusion devices are gradually put into the tool, the position of the first fusion device can be easily changed when the second fusion device is put into the tool, the first fusion device is required to be taken out again, and the operation is inconvenient.
Disclosure of Invention
The invention provides an intervertebral fusion device under an inverse insertion type intervertebral foramen mirror, which can solve the problem that two fusion devices are inconvenient to be placed on affected parts of an intervertebral disc at the same time in the intervertebral disc fusion device tool in the prior art.
The intervertebral fusion device comprises a handle, a connecting rod fixedly connected with the handle, a loop bar sleeved on the connecting rod, a fixed seat connected with one end of the loop bar and a fusion device body, wherein one end of the connecting rod extends out from one side of the fixed seat, and two fixed bars for fixedly fixing the fusion device body are arranged on one side of the fixed seat away from the loop bar;
the novel fusion device comprises a fusion device body, wherein the fusion device body is of a bullet-shaped structure, through holes are formed in the fusion device body, inverted teeth are formed in the upper surface and the lower surface of the fusion device body, a fixing groove matched with the fixing rod is formed in one side of the fusion device body, a thread groove is formed in one end, close to the fixing seat, of the fusion device body, a threaded rod matched with the thread groove is fixedly connected to one end of the connecting rod, and a half thread groove perpendicular to the end face is formed in one side of the fusion device body.
Preferably, the fixing rod is fixedly connected with a sliding block at one end close to the fixing seat, a sliding groove matched with the sliding block is formed in one side of the fixing seat, and the sliding block is slidably arranged in the sliding groove.
Preferably, the fixed cover is slidably arranged on the loop bar, an opening is formed in one end of the fixed cover, a jack is formed in the fixed cover, an inserting bar is movably connected in the jack, a reset spring is further arranged in the jack, one end sliding rail is fixedly connected on the loop bar, and a yielding groove for yielding the sliding rail is formed in the fixed cover.
Preferably, the external diameter of the loop bar is 3.5mm.
Preferably, the length of the sleeve rod is 320mm.
Preferably, the fusion device body is made of polyether-ether-ketone resin material.
Preferably, the fusion cage body is made of titanium alloy material.
Compared with the prior art, the invention has the beneficial effects that: the external diameter of the loop bar is smaller than the internal diameter of a general foramen mirror working channel, and the loop bar can be used under the foramen mirror, so that doctors can more accurately observe the placement position of the fusion device; can be according to the condition of different patients with one send to lumbar vertebrae intervertebral department or with two fusion ware simultaneously to lumbar vertebrae intervertebral department, it is more convenient to operate, two fusion ware are put into simultaneously and are more convenient than gradually putting into, and effectively prevent gradually putting into the emergence of the fusion ware dislocation condition that brings.
Drawings
FIG. 1 is a schematic diagram I of the structure of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 in accordance with the present invention;
FIG. 3 is a schematic diagram II of the structure of the present invention;
FIG. 4 is a cross-sectional view taken at B-B of FIG. 3 in accordance with the present invention;
FIG. 5 is a schematic view of the present invention in its configuration when a cage is installed;
fig. 6 is a use state diagram of the present invention.
Reference numerals illustrate:
the device comprises a handle, a connecting rod, a sleeve rod, a fixed seat, a fusion device body, a fixed seat, a fixed cover, a through hole, a pawl, a fixed groove, a threaded rod, a half-threaded groove, a slider, a sliding groove, a plunger rod, a return spring, a sliding rail and a yielding groove.
Detailed Description
One embodiment of the present invention will be described in detail below with reference to the attached drawings, but it should be understood that the scope of the present invention is not limited by the embodiment.
As shown in fig. 1 to 6, the intervertebral fusion device under an inverse insertion type intervertebral foramen mirror provided by the embodiment of the invention comprises a handle 1, a connecting rod 2 fixedly connected with the handle 1, a loop bar 3 sleeved on the connecting rod 2, a fixing seat 4 connected with one end of the loop bar 3 and a fusion device body 5, wherein one end of the connecting rod 2 extends out from one side of the fixing seat 4, and two fixing rods 6 for fixing the fusion device body 5 are arranged on one side of the fixing seat 4 away from the loop bar 3;
the fusion device comprises a fusion device body 5, a fixing rod 6, a threaded groove 11, a threaded rod 12 and a half-threaded groove 13, wherein the fusion device body 5 is of a bullet-shaped structure, a through hole 8 is formed in the fusion device body 5, inverted teeth 9 are formed in the upper surface and the lower surface of the fusion device body 5, a fixing groove 10 matched with the fixing rod 6 is formed in one side of the fusion device body 5, the threaded groove 11 is formed in one end, close to the fixing seat 4, of the fusion device body 5, a threaded rod 12 matched with the threaded groove 11 is fixedly connected to one end of the connecting rod 2, and the half-threaded groove 13 perpendicular to the end face is formed in one side of the fusion device body 5;
the threaded rod 12 can be screwed into both the thread groove 11 of the cage body 5 and the complete thread groove consisting of the half thread grooves 13 of the two cage bodies 5; when only one fusion device body 5 is put into, the threaded rod 12 is screwed into the threaded groove 11 of the fusion device body 5, and when two fusion device bodies 5 are simultaneously put into, the half threaded grooves 13 of the two fusion device bodies 5 can form a complete threaded groove, and the two fixing rods 6 can enable the two fusion device bodies 5 to be tightly attached, so that the threaded connection relation between the threaded rod 12 and the half threaded grooves 13 is ensured;
the fixing rod 6 is clamped into the fixing groove 10 of the fusion device body 5, and when the threaded rod 12 is unscrewed, the fusion device body 5 can be prevented from rotating along with the threaded rod 12;
the sliding block 14 at one end of the fixed rod 6 only can slide in the sliding groove 15 and cannot fall off from the sliding groove 15, and the sliding block 14 is T-shaped;
when the distance between the two fixing rods 6 is adjusted to be maximum, the two fusion device bodies 5 can be just placed, and when the distance between the two fixing rods 6 is adjusted to be minimum, the two fusion device bodies 5 can be just placed, the fusion device bodies 5 have different sizes, and the fusion device bodies 5 with different sizes are provided with a matched under-lens tool;
one end of the fixed rod 6, which is close to the fixed seat 4, is fixedly connected with a sliding block 14, one side of the fixed seat 4 is provided with a sliding groove 15 matched with the sliding block 14, and the sliding block 14 is slidably arranged in the sliding groove 15;
the fixed cover 7 is slidably arranged on the loop bar 3, an opening is formed in one end of the fixed cover 7, a jack is formed in the fixed cover 7, an inserting bar 16 is movably connected in the jack, a return spring 17 is further arranged in the jack, one end sliding rail 18 is fixedly connected on the loop bar 3, and a yielding groove 19 for yielding the sliding rail 18 is formed in the fixed cover 7;
part of the loop bar 3 can be located in the handle 1, a certain friction force is formed between the handle 1 and the loop bar 3, the loop bar 3 can be driven to rotate when the handle is rotated, the handle 1 is directly rotated when the fusion device body 5 is placed between lumbar vertebrae, in order to enable the threaded rod 12 to be screwed out of the threaded groove 11, the fusion device body 5 is separated from the fixing seat 4, the lumbar vertebrae can bear a part of axial force, a certain damage is easily caused to the lumbar vertebrae of a patient, the loop bar 3 is inconvenient to pinch by hands when the intervertebral foraminicope is used, the intervertebral foraminicope also needs to be held by hands, the tail end of the loop bar 3 and the intervertebral foraminicope can be connected together by using the fixing cover 7, the fixing cover 7 can slide on the loop bar 3, the rotation of the loop bar 3 can be limited by fixing the fixing cover 7, the tail end of the intervertebral foraminicope can be sleeved with the fixing cover 7, the two inserting bars 16 and the inserting bars 16 are arranged on the outer wall of the intervertebral foraminicope, the tail end of the fixing cover 7 is clamped on the intervertebral foraminicope, and thus the loop bar 3 is not connected with the intervertebral foraminicope by the thumb, and the pulling out of the intervertebral foraminicope is not influenced.
The external diameter of the loop bar 3 is 3.5mm.
The length of the loop bar 3 is 320mm.
Furthermore, the fusion device body 5 is made of titanium alloy material, the medical titanium alloy has better biocompatibility and mechanical strength, the processing is easy, the cost is low, the polyether-ether-ketone resin material (PEEK) is more expensive than the titanium alloy, the main problem is limited by materials and processing means, and the cost of the fusion device made of the polyether-ether-ketone resin material is 2-5 times of the cost of the titanium alloy material.
Working principle: when the fusion device is used, one end, close to the handle 1, of the loop bar 3 is inserted into a working channel of the intervertebral foramen mirror from one end of the affected part, then the connecting rod 2 is inserted from the other end of the working channel of the intervertebral foramen mirror and is inserted into the loop bar 3, the fixing bars 6 are moved to proper positions, then the fusion device body 5 is inserted between the two fixing bars 6, the fusion device body 5 is held by one hand, the handle 1 is rotated by the other hand, the threaded rod 12 is connected into the thread groove 11 or the two half thread grooves 13 in a threaded manner, finally the fixing cover 7 is sleeved on the tail end of the intervertebral foramen mirror, the intervertebral foramen mirror is inserted into the affected part, the fusion device is inserted into the lumbar vertebrae, when the fusion device body 5 is required to be disconnected from the connecting rod 2, namely, the fusion device body 5 is put into the fusion device body 5, the two inserting rods 16 are pressed by hand, then the handle 1 is rotated by the other hand, the handle 1 is rotated by the connecting rod 2, namely the threaded rod 12 is rotated, the threaded rod 12 is screwed out of the thread groove 11 or the two half thread grooves 13, and then the handle 1 is screwed into the handle 1, and the fusion device body 5 is separated from the fixing bars 6 by the threaded rod 12 through the threaded rod 12, and the handle 5 is put into the fusion device.
The foregoing disclosure is merely illustrative of some embodiments of the invention, but the embodiments are not limited thereto and variations within the scope of the invention will be apparent to those skilled in the art.
Claims (4)
1. The intervertebral fusion device under the inverse insertion type intervertebral foramen mirror is characterized by comprising a handle, a connecting rod fixedly connected with the handle, a loop bar sleeved on the connecting rod, a fixing seat connected with one end of the loop bar and a fusion device body, wherein one end of the connecting rod extends out from one side of the fixing seat, and two fixing rods for fixing the fusion device body are arranged on one side of the fixing seat away from the loop bar;
the fusion device comprises a fusion device body, a fixing rod, a threaded groove, a threaded rod and a half-threaded groove, wherein the fusion device body is of a bullet type structure, through holes are formed in the fusion device body, inverted teeth are arranged on the upper surface and the lower surface of the fusion device body, a fixing groove matched with the fixing rod is further formed in one side of the fusion device body, the threaded groove is formed in one end, close to the fixing seat, of the fusion device body, the threaded rod matched with the threaded groove is fixedly connected to one end of the connecting rod, and the half-threaded groove perpendicular to the end face is further formed in one side of the fusion device body;
one end of the fixed rod, which is close to the fixed seat, is fixedly connected with a sliding block, one side of the fixed seat is provided with a sliding groove matched with the sliding block, and the sliding block is slidably arranged in the sliding groove;
the fixed cover is provided with an opening at one end, a jack is formed in the fixed cover, an inserting rod is movably connected in the jack, a reset spring is further arranged in the jack, one end sliding rail is fixedly connected on the loop bar, and a yielding groove for yielding the sliding rail is formed in the fixed cover;
the fusion device body is made of polyether-ether-ketone resin material.
2. An inverse insertable foraminal inferior interbody fusion cage as claimed in claim 1 wherein said loop bar has an outer diameter of 3.5mm.
3. An inverse insertable foraminal inferior interbody fusion cage as claimed in claim 2 wherein the length of the sleeve is 320mm.
4. The invertible foramen sub-vertebral fusion cage of claim 1, wherein the cage body is a titanium alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910990039.5A CN110693631B (en) | 2019-10-17 | 2019-10-17 | Intervertebral fusion device under inverse insertion type intervertebral foramen mirror |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910990039.5A CN110693631B (en) | 2019-10-17 | 2019-10-17 | Intervertebral fusion device under inverse insertion type intervertebral foramen mirror |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110693631A CN110693631A (en) | 2020-01-17 |
| CN110693631B true CN110693631B (en) | 2023-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910990039.5A Active CN110693631B (en) | 2019-10-17 | 2019-10-17 | Intervertebral fusion device under inverse insertion type intervertebral foramen mirror |
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Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6042582A (en) * | 1997-05-20 | 2000-03-28 | Ray; Charles D. | Instrumentation and method for facilitating insertion of spinal implant |
| BR9805340B1 (en) * | 1998-12-14 | 2009-01-13 | variable expansion insert for spinal stabilization. | |
| JP4312964B2 (en) * | 1999-01-11 | 2009-08-12 | ウォーソー・オーソペディック・インコーポレーテッド | Intervertebral spacer having a side wall accessible to the bore |
| US6666891B2 (en) * | 2000-11-13 | 2003-12-23 | Frank H. Boehm, Jr. | Device and method for lumbar interbody fusion |
| US7749269B2 (en) * | 2005-03-28 | 2010-07-06 | Warsaw Orthopedic, Inc. | Spinal system and method including lateral approach |
| US8062303B2 (en) * | 2006-08-16 | 2011-11-22 | K2M, Inc. | Apparatus and methods for inserting an implant |
| US8449554B2 (en) * | 2008-03-07 | 2013-05-28 | K2M, Inc. | Intervertebral implant and instrument with removable section |
| CN103610521A (en) * | 2013-11-21 | 2014-03-05 | 江苏百得医疗器械有限公司 | Interbody fusion cage |
| CN105877877A (en) * | 2015-01-26 | 2016-08-24 | 广州医科大学附属第医院 | Assembled type minimally invasive lumbar interbody fusion apparatus |
| CN204581605U (en) * | 2015-04-28 | 2015-08-26 | 冯法博 | Invasive lumbar fusion device |
| CN204636624U (en) * | 2015-05-04 | 2015-09-16 | 上海中山医疗科技发展公司 | Outside lumbar vertebra BAK after a kind of percutaneous |
| CN105326586B (en) * | 2015-12-08 | 2018-10-12 | 北京市富乐科技开发有限公司 | Splice type lumbar vertebra posterior fusion device |
| CN205359718U (en) * | 2016-01-27 | 2016-07-06 | 常州集硕医疗器械有限公司 | Modular interbody fusion cage |
| CN106073953B (en) * | 2016-08-26 | 2017-12-08 | 常州好利医疗科技有限公司 | Coordinated type Invasive lumbar fusion device |
| CN109498221B (en) * | 2018-12-28 | 2021-06-18 | 宁波华科润生物科技有限公司 | Assembled vertebral body fusion system for entering way through minimally invasive access |
| CN211131559U (en) * | 2019-10-17 | 2020-07-31 | 徐州市中心医院 | Intervertebral fusion device under intervertebral foramen mirror of can inserting formula upside down |
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- 2019-10-17 CN CN201910990039.5A patent/CN110693631B/en active Active
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