CN107212911B - Rotary cutter for intervertebral disc operation - Google Patents
Rotary cutter for intervertebral disc operation Download PDFInfo
- Publication number
- CN107212911B CN107212911B CN201710519419.1A CN201710519419A CN107212911B CN 107212911 B CN107212911 B CN 107212911B CN 201710519419 A CN201710519419 A CN 201710519419A CN 107212911 B CN107212911 B CN 107212911B
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- China
- Prior art keywords
- cutter
- handle
- cutter head
- spiral
- knife
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000001356 surgical procedure Methods 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims description 4
- 210000004872 soft tissue Anatomy 0.000 abstract description 3
- 210000000578 peripheral nerve Anatomy 0.000 abstract description 2
- 206010050296 Intervertebral disc protrusion Diseases 0.000 description 10
- 210000005036 nerve Anatomy 0.000 description 10
- 208000002193 Pain Diseases 0.000 description 8
- 208000024891 symptom Diseases 0.000 description 6
- 208000008035 Back Pain Diseases 0.000 description 5
- 208000003618 Intervertebral Disc Displacement Diseases 0.000 description 5
- 210000001519 tissue Anatomy 0.000 description 5
- 210000003141 lower extremity Anatomy 0.000 description 4
- 238000003745 diagnosis Methods 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 238000002560 therapeutic procedure Methods 0.000 description 3
- 208000008930 Low Back Pain Diseases 0.000 description 2
- 208000031481 Pathologic Constriction Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000000278 spinal cord Anatomy 0.000 description 2
- 210000000273 spinal nerve root Anatomy 0.000 description 2
- 230000036262 stenosis Effects 0.000 description 2
- 208000037804 stenosis Diseases 0.000 description 2
- 230000000638 stimulation Effects 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- NLMDJJTUQPXZFG-UHFFFAOYSA-N 1,4,10,13-tetraoxa-7,16-diazacyclooctadecane Chemical compound C1COCCOCCNCCOCCOCCN1 NLMDJJTUQPXZFG-UHFFFAOYSA-N 0.000 description 1
- 208000035473 Communicable disease Diseases 0.000 description 1
- 206010020880 Hypertrophy Diseases 0.000 description 1
- 208000028389 Nerve injury Diseases 0.000 description 1
- 206010029240 Neuritis Diseases 0.000 description 1
- 208000008765 Sciatica Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000036770 blood supply Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 210000001217 buttock Anatomy 0.000 description 1
- 230000002308 calcification Effects 0.000 description 1
- 244000309466 calf Species 0.000 description 1
- 210000000845 cartilage Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005786 degenerative changes Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 208000035475 disorder Diseases 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005713 exacerbation Effects 0.000 description 1
- 210000003195 fascia Anatomy 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 210000003041 ligament Anatomy 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000003387 muscular Effects 0.000 description 1
- 230000001114 myogenic effect Effects 0.000 description 1
- 230000008764 nerve damage Effects 0.000 description 1
- 231100000862 numbness Toxicity 0.000 description 1
- 238000011369 optimal treatment Methods 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000000554 physical therapy Methods 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000306 recurrent effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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- 210000000689 upper leg Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1662—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body
- A61B17/1671—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the spine
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
-
- 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
- A61B2017/564—Methods for bone or joint treatment
Abstract
The invention discloses a rotary cutter for intervertebral disc surgery, which comprises a cutter handle and a cutter head, wherein the cutter head is formed by curling a cutter blade with one side provided with a cutting edge along the cutting edge, the section of the cutter head is spiral, the cutting edge is positioned at the center of a spiral, and the outer ring of the spiral is used as a cutter back; the upper portion of tool bit with the handle of a knife is connected, the handle of a knife is cylindric structure, and the diameter of handle of a knife is greater than the maximum of the spiral radius of curvature of tool bit, the lower extreme of handle of a knife is as the limit dark line of tool bit. The cutter head of the rotary cutter adopts a sheet spiral design, the cutter back faces outwards, the cutter edge faces inwards, when the rotary cutter is used, the cutter head stretches into an operation part, the cutter handle is held to rotate the cutter head to partially cut nucleus pulposus, peripheral nerves and other soft tissues of the operation part cannot contact with the cutter edge, and the operation risk is greatly reduced.
Description
Technical Field
The invention belongs to the field of medical instruments, and particularly relates to a surgical knife used in intervertebral disc surgery.
Background
Lumbar disc herniation is one of the more common lumbar diseases in clinic, is a common and frequently encountered disease of orthopedics and traumatology, mainly because various parts of lumbar disc (nucleus pulposus, annulus fibrosus and cartilage plate), especially nucleus pulposus, after different degrees of degenerative changes, the annulus fibrosus of the intervertebral disc breaks under the action of external factors, and nucleus pulposus tissues protrude (or deviate) from the broken parts or in the vertebral canal, so that adjacent tissues such as spinal nerve roots, spinal cords and the like are stimulated or pressed, thereby generating a series of clinical symptoms such as lumbar pain, numbness of one lower limb or two lower limbs, pain and the like.
The most common symptoms in patients with lumbar disc herniation are pain, which may be manifested as back pain, sciatica, typically as radiation pain from the buttocks, the rear side of the thigh, the outside of the calf to the heel or the instep. According to clinical statistics, about 95% of patients with lumbar process symptoms have different degrees of lumbago, and 80% of patients have lower limb pain. Particularly lumbago, is not only the most common symptom of lumbar disc herniation, but also one of the earliest symptoms. Therefore, if similar conditions are found, the patient should be diagnosed in time, the diagnosis is definitely carried out, the possibility of other factors is eliminated, and the patient is carefully checked to prevent the diagnosis from being leaked, so that the delayed illness state is avoided. Some patients blindly treat without proper diagnosis, losing optimal treatment opportunities. The correct and effective treatment is very critical, and there are many methods for treating lumbar disc herniation clinically, such as surgery, physiotherapy, medication, traction, massage, etc.
The operation therapy is to perform open operation on the patient to eliminate the herniated disc so as to achieve the purpose of healing. The key point is to relieve nerve root stimulation or compression, eliminate nerve inflammation, promote nerve repair and the like, and the Chinese medicinal composition has the characteristics of quick response. However, it should be noted that although the effect of the surgery is remarkable, the cost is high, the risk is high, because the surgery is often very difficult, the risk is extremely high, the wound is large, the recovery period after the surgery is usually 3 months, the work and the study life of a patient are seriously affected, the stability of the spine is further affected, and infectious diseases, nerve injury, nerve fascia and the like are formed to form fibrous scar tissues, so that nerve roots are adhered, postoperative recurrent pain is caused, the lumbar stability is poor, chronic lumbago is caused, and the sequelae such as exacerbation is reflected on the variable days.
It is due to the above problems that surgical therapies for lumbar disc herniation have strict adaptation symptoms in clinic: pain is severe and indeed cannot be relieved by long-term non-operative treatment; the large protrusion or adhesion and calcification of the intervertebral disc lead to serious side crypt and spinal canal stenosis (myogenic stenosis such as non-yellow ligament hypertrophy); the muscular delegation of lower limbs caused by nerve root stimulation or blood vessel blood supply disorder after compression has obvious reduction of muscle strength.
From the above, the difficulty of the surgical treatment of the lumbar disc herniation is great, and the influence on the patient is also great. Although having a significant therapeutic effect, doctors and patients also have to carefully treat this type of surgery. Most of the existing cutters are arc-shaped blades or serrated cutter heads. During operation, the herniated disk is exposed by using a common nerve probe and auxiliary instruments, and after the herniated disk is fully exposed, the herniated disk is annularly cut by using a small pointed knife, and the herniated disk is taken out by using a self-propelled nucleus pulposus forceps. Because of close contact with spinal cord and nerve root, the nerve may be damaged with some carelessness, resulting in irreparable consequences. If the success rate of the operation can be effectively improved, the possible risks in the operation are reduced, and the operation therapy is obviously the most effective means for treating the lumbar disc herniation.
Disclosure of Invention
The invention aims to: the invention aims to overcome the defects of the prior art, and provides a rotary cutter for intervertebral disc operation, which reduces the operation difficulty of lumbar disc herniation operation, improves the operation efficiency and can effectively protect nerves and peripheral tissues of an operation part.
The technical scheme is as follows: the invention relates to a rotary cutter for intervertebral disc surgery, which comprises a cutter handle and a cutter head, wherein the cutter head is formed by curling a cutter blade with one side provided with a cutting edge along the cutting edge, the section of the cutter head is spiral, the cutting edge is positioned at the center of a spiral, and the outer ring of the spiral is used as a cutter back; the upper portion of tool bit with the handle of a knife is connected, the handle of a knife is cylindric structure, and the diameter of handle of a knife is greater than the maximum of the spiral radius of curvature of tool bit, the lower extreme of handle of a knife is as the limit dark line of tool bit.
The invention further preferably adopts the technical scheme that a columnar inner cavity is formed in the cutter handle, and the upper part of the cutter head stretches into the inner cavity and is locked and fixed by a locking device arranged on the outer wall of the cutter handle.
Preferably, the top end of the knife handle is further provided with a rotating cap, the rotating cap is rotationally connected with the knife handle through a rotating shaft, and the knife handle freely rotates along the rotating shaft.
Preferably, the cross section of the cutter head is an archimedes spiral.
Preferably, the handle is made of a flexible material.
Preferably, an anti-skid groove is further arranged on the knife handle.
The beneficial effects are that: (1) The cutter head of the rotary cutter adopts a laminar spiral design, the cutter back faces outwards, the cutter edge faces inwards, when in use, the cutter head stretches into an operation part, the cutter handle is held to rotate the cutter head to partially cut nucleus pulposus, peripheral nerves and other soft tissues of the operation part cannot contact with the cutter edge, and the operation risk is greatly reduced; the resected nucleus pulposus tissue is positioned in the cutter head, is resected cleanly, is convenient to take out, and avoids the pain and hidden trouble brought to a patient by repeatedly extending the cutter head or other instruments into the operation part in the traditional operation; in addition, the diameter of the cutter handle is larger than the maximum value of the spiral curvature radius of the cutter head, the cutter handle can limit the rotary cutting depth of the rotary cutter, the operation precision is improved, the internal nerves of the spine are not damaged, and the operation risk is further reduced;
(2) The upper part of the cutter head extends into the cutter handle, so that the length of the cutter head can be adjusted according to individual differences, the depth design of the cutter head accords with the structural characteristics of a human body, the internal nerves of the spine are not damaged, the precision of operation is further improved, and the risk of operation is reduced;
(3) According to the invention, the rotary cap is arranged at the top end of the knife handle, and is in rotary connection with the knife handle through the rotary shaft, so that the rotary angle of the instantaneous rotary knife is further increased during operation, and the hand of an operator can be ensured to be always kept in a state of holding the rotary knife, thereby being beneficial to the accurate control of the operator on the operation; the knife handle is made of flexible materials, and the anti-slip groove is further formed in the knife handle, so that the control of a counter-rotating knife of an operator can be further ensured;
(4) The rotary cutter has the advantages of low surgical risk, less pain, good excision effect and high effective rate for a patient, is convenient and quick to use, has the advantages of lower requirements for operators, short operation time and high efficiency for the patient, can comprehensively solve most of the technical problems in the current surgical treatment of lumbar disc herniation, improves the possibility of performing the surgical treatment, and highlights the advantages of the surgical treatment.
Drawings
FIG. 1 is a schematic structural view of a rotary cutter for intervertebral disc surgery according to the present invention;
fig. 2 is a schematic view of a part of the structure of the tool shank according to the present invention.
Detailed Description
The technical scheme of the invention is described in detail below through the drawings, but the protection scope of the invention is not limited to the embodiments.
Examples: a rotary cutter for intervertebral disc surgery, as shown in fig. 1, comprises a cutter handle 1 and a cutter head 2.
The tool handle 1 is in a cylindrical structure made of flexible materials, and as shown in fig. 2, an anti-slip groove 12 is arranged on the tool handle 1. The top of the knife handle 1 is also provided with a rotating cap 3, the rotating cap 3 is rotationally connected with the knife handle 1 through a rotating shaft 13, and the knife handle 1 freely rotates along the rotating shaft 13.
The tool shank 1 is internally provided with a columnar inner cavity, and the upper part of the tool bit 2 stretches into the inner cavity and is locked and fixed by a locking device 11 arranged on the outer wall of the tool shank 1.
The cutter head 2 is formed by curling a cutter blade with one side provided with a cutting edge along the cutting edge position, the section of the cutter head 2 presents an Archimedes spiral, the cutting edge 21 is positioned at the center of the spiral, and the outer ring of the spiral serves as a cutter back 22; the upper part of the tool bit 2 is connected with the tool shank 1, the diameter of the tool shank 1 is larger than the maximum value of the spiral curvature radius of the tool bit 2, and the lower end of the tool shank 1 is used as a depth limiting line of the tool bit 2.
When in use, the skin of the operation part is incised, the soft tissue is spread to expose the operation field, the operator holds the knife handle, the knife head part extends into the operation part, the knife handle is rotated, and the knife head is rotated to cut the nucleus pulposus. The minimally invasive cervical and lumbar disc surgery implemented by the cutter has the advantages of being minimally invasive and effective, and the effective rate reaches 90-95%.
As described above, although the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limiting the invention itself. Various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. The rotary cutter for the intervertebral disc operation comprises a cutter handle and a cutter head, and is characterized in that the cutter head is formed by curling a cutter blade with one side provided with an edge along the cutting edge, the section of the cutter head is spiral, the cutter blade is positioned at the center of a spiral, and an outer ring of the spiral is used as a cutter back; the upper part of the cutter head is connected with the cutter handle, the cutter handle is of a cylindrical structure, the diameter of the cutter handle is larger than the maximum value of the spiral curvature radius of the cutter head, and the lower end of the cutter handle is used as a depth limiting line of the cutter head;
the cutter head comprises a cutter handle, a cutter head and a locking device, wherein a columnar inner cavity is formed in the cutter handle, and the upper part of the cutter head stretches into the inner cavity and is locked and fixed by the locking device arranged on the outer wall of the cutter handle;
the top of the knife handle is also provided with a rotating cap, the rotating cap is rotationally connected with the knife handle through a rotating shaft, and the knife handle freely rotates along the rotating shaft.
2. The rotary cutter for disc surgery according to claim 1, wherein the cutter head has an archimedes spiral cross section.
3. The rotary cutter for disc surgery according to claim 1, wherein the handle is made of a flexible material.
4. The rotary cutter for disc surgery according to claim 3, wherein an anti-slip groove is further provided on the handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710519419.1A CN107212911B (en) | 2017-06-30 | 2017-06-30 | Rotary cutter for intervertebral disc operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710519419.1A CN107212911B (en) | 2017-06-30 | 2017-06-30 | Rotary cutter for intervertebral disc operation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107212911A CN107212911A (en) | 2017-09-29 |
| CN107212911B true CN107212911B (en) | 2023-12-15 |
Family
ID=59950787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710519419.1A Active CN107212911B (en) | 2017-06-30 | 2017-06-30 | Rotary cutter for intervertebral disc operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107212911B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200973739Y (en) * | 2006-04-26 | 2007-11-14 | 谭锐 | Intervertebral disc sleeve type fiber annular tissue incising scalpel |
| CN101553179A (en) * | 2006-11-29 | 2009-10-07 | 蒂斯科动力学公司 | Method and apparatus for removing an extension from a prosthesis |
| CN201398985Y (en) * | 2009-04-13 | 2010-02-10 | 张树立 | Orthopaedic reamer for spinal canal decompression |
| CN201920845U (en) * | 2010-12-10 | 2011-08-10 | 上海凯利泰医疗科技股份有限公司 | Rotary cutter bar used for minimally invasive intervertebral disc surgery |
| CN103501733A (en) * | 2011-02-16 | 2014-01-08 | 阿曼迪亚有限公司 | Percutaneous arthrodesis method and system |
| CN104688300A (en) * | 2013-12-09 | 2015-06-10 | 苏州点合医疗科技有限公司 | Nucleus pulposus cleaning knife for digital spinal surgeries |
-
2017
- 2017-06-30 CN CN201710519419.1A patent/CN107212911B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200973739Y (en) * | 2006-04-26 | 2007-11-14 | 谭锐 | Intervertebral disc sleeve type fiber annular tissue incising scalpel |
| CN101553179A (en) * | 2006-11-29 | 2009-10-07 | 蒂斯科动力学公司 | Method and apparatus for removing an extension from a prosthesis |
| CN201398985Y (en) * | 2009-04-13 | 2010-02-10 | 张树立 | Orthopaedic reamer for spinal canal decompression |
| CN201920845U (en) * | 2010-12-10 | 2011-08-10 | 上海凯利泰医疗科技股份有限公司 | Rotary cutter bar used for minimally invasive intervertebral disc surgery |
| CN103501733A (en) * | 2011-02-16 | 2014-01-08 | 阿曼迪亚有限公司 | Percutaneous arthrodesis method and system |
| CN104688300A (en) * | 2013-12-09 | 2015-06-10 | 苏州点合医疗科技有限公司 | Nucleus pulposus cleaning knife for digital spinal surgeries |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107212911A (en) | 2017-09-29 |
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