CN114601553A - Meniscus anterior horn cutter - Google Patents

Meniscus anterior horn cutter Download PDF

Info

Publication number
CN114601553A
CN114601553A CN202210383927.2A CN202210383927A CN114601553A CN 114601553 A CN114601553 A CN 114601553A CN 202210383927 A CN202210383927 A CN 202210383927A CN 114601553 A CN114601553 A CN 114601553A
Authority
CN
China
Prior art keywords
cutting
meniscus
meniscal
insulator
cutter
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.)
Pending
Application number
CN202210383927.2A
Other languages
Chinese (zh)
Inventor
黄程军
陈光兴
古凌川
杨柳
段小军
郭林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
First Affiliated Hospital of Army Medical University
Original Assignee
First Affiliated Hospital of Army Medical University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by First Affiliated Hospital of Army Medical University filed Critical First Affiliated Hospital of Army Medical University
Priority to CN202210383927.2A priority Critical patent/CN114601553A/en
Publication of CN114601553A publication Critical patent/CN114601553A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00053—Mechanical features of the instrument of device
    • A61B2018/00059—Material properties
    • A61B2018/00071—Electrical conductivity
    • A61B2018/00083—Electrical conductivity low, i.e. electrically insulating
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00565—Bone
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
    • A61B2018/00601—Cutting
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B2018/1405—Electrodes having a specific shape
    • A61B2018/1412—Blade
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2218/00—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2218/001—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body having means for irrigation and/or aspiration of substances to and/or from the surgical site
    • A61B2218/007—Aspiration
    • A61B2218/008—Aspiration for smoke evacuation

Landscapes

  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Otolaryngology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Plasma & Fusion (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)

Abstract

The invention provides a meniscus anterior angle electric cutter, which comprises an operating part and a cutting part arranged at an included angle with the operating part, wherein the cutting part comprises an insulator with a triangular prism shape and a cutting edge arranged on the insulator, the cutting edge is arranged at the inner side of the included angle formed by the operating part and the cutting part, and at least part of the area is a conductor. According to the invention, the cutting part and the operation part are arranged at an included angle, so that the cutting direction is different from the operation direction, different directions of the cutting part in the joint cavity can be realized by rotating the operation part, the separation and space of the torn meniscus are realized in the visual field of the joint cavity, and the cutting operation of the torn meniscus lower layer at the anterior angle position of the meniscus is realized. The cutting part comprises an insulating part and a conducting part, the conducting part is used for cutting, and the insulating part is used for protecting meniscus and cartilage needing to be reserved. Meanwhile, the cutting part of the triangular prism is adopted, so that the material is less, the occupied space is small, and the joint cavity can be conveniently passed without interference.

Description

Meniscus anterior horn cutter
Technical Field
The invention relates to the technical field of medical instruments, in particular to an electric cutter for a front angle of a meniscus.
Background
The meniscus is a C-shaped cushioning structure made of elastic cartilage located between the two major bones that make up the knee joint. The meniscus may act as a cushion to prevent damage to the articular cartilage caused by impact. Meniscus injury caused by various reasons can be accompanied by injury of soft tissues of the knee, such as collateral ligament injury, cruciate ligament injury, joint capsule injury, cartilage face injury and the like, and is often also the cause of swelling after injury.
Meniscal tears are a common form of meniscal injury. After the meniscus is damaged, a treatment regimen can be selected according to the damage degree, and the meniscus needs to be trimmed or sutured for a patient with severe tear. In trimming, the poor quality torn meniscus must be cleaned to remove free, unstable meniscal fragments.
Currently, there is no special surgical tool for anterior meniscal preparation, and nucleus pulposus pincers are usually used for slowly biting or primary cutting preparation by a blade, and since these tools cannot bend to completely prepare the lower surface of the meniscus, the operation sometimes appears visible and inoperable, and sometimes appears invisible when operable. Generally, the lower surface of the meniscus is not completely peeled from the joint capsule after the meniscus is torn, the meniscus with poor quality needs to be cut, the operation is a minimally invasive operation, the operation channel is only about 10mm, and therefore, the meniscus tear cannot be effectively cut and trimmed.
In view of the above problems, there is a need to provide a novel cutting tool, which is adapted to the environment of the joint cavity, and can cut the lower surface of the joint cavity without any obstacle, thereby providing a help for fast and efficient cutting operation.
Disclosure of Invention
The invention provides a meniscus front angle cutter which can quickly and efficiently cut a meniscus tear seam and solves the problems of low efficiency and incomplete trimming existing in the prior art without a professional cutting tool.
In order to solve the technical problems, the invention specifically adopts the following technical scheme:
meniscus anterior angle cutterbar, including operating portion and the cutting part that is the contained angle setting with the operating portion, the cutting part includes that the appearance is the insulator of triangular prism and the cutting edge that sets up on an edge of insulator, the cutting edge sets up the inboard that forms the contained angle at operating portion and cutting part, and at least partial region is the electric conductor.
Furthermore, the cutting surface of the cutting edge is a circular arc surface with the diameter of 0.5-1.5 mm.
Further, the cutting edge comprises a conductive section and an insulating section, the conductive section is arranged at one end connected with the operation part, the insulating section is arranged at the other end connected with the operation part, and the length of the insulating section is 0.5-2 mm.
Further, the bottom of the insulator is provided with an inclined surface, the inclined surface is formed by cutting off materials by adopting a plane which forms an included angle of 5-10 degrees with the bottom of the triangular prism, and the far end of the cutting part is smaller than the near end.
The cutting blade is characterized by further comprising a power plug, the operating part is of a hollow rod-shaped structure, a lead used for being connected with the power plug is arranged in the hollow cavity, and the other end of the lead is electrically communicated with the conductive section of the cutting blade.
Further, a grip is provided at an end of the operation portion.
The smoke exhaust system comprises smoke inlet holes formed in two sides of the cutting edge, a smoke inlet channel arranged in the insulator, a smoke exhaust channel arranged in the operation portion and a negative pressure device arranged outside, wherein the smoke inlet channel is communicated with the smoke inlet holes and the smoke exhaust channel, and the smoke exhaust channel is communicated with the negative pressure device.
The invention has the beneficial effects that:
according to the invention, the cutting part and the operation part are arranged at an included angle, so that the cutting direction is different from the operation direction, different directions of the cutting part in the joint cavity can be realized by rotating the operation part, the separation and space of the torn meniscus are realized in the visual field of the joint cavity, and the cutting operation of the torn meniscus lower layer at the anterior angle position of the meniscus is realized. Meanwhile, the cutting part of the triangular prism is adopted, so that the material is less, the occupied space is small, and the joint cavity can be conveniently passed without interference. In addition, the cutting edge is arranged on the inner side of an included angle formed by the operating part and the cutting part, the cutting can be carried out in order to open the effective space by the design of the triangular pyramid cutting, and the operation is simple and labor-saving. The distal end of the cutting portion is designed to be insulated in order to protect cartilage and joint capsules when the cutting portion cannot be exposed after being inserted into tissue. And finally, the cutting edge part is an electric conductor, and can electrically cut the meniscus, so that the cutting is more labor-saving and the efficiency is higher.
Description of the drawings:
FIG. 1 is a three-dimensional view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a right side view of the present invention;
FIG. 4 is a top view of the present invention;
FIG. 5 is a schematic diagram of the operation state of the present invention.
Reference numerals:
1-an operation section; 2-a cutting section; 3-an insulator; 4-a cutting edge; 5-joint cavity; 6-meniscus; 7-cutting surface; 8-a conductive segment; 9-an insulating section; 10-inclined plane; 11-a power plug; 12-a wire; 13-a grip handle; 14-smoke inlet holes; 15-a smoke inlet channel; 16-a smoke evacuation channel; 17-control the switch.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the above description of the present invention, it should be noted that the terms "one side", "the other side" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or the element to which the present invention is directed must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
Further, the term "identical" and the like do not mean that the components are absolutely required to be identical, but may have slight differences. The term "perpendicular" merely means that the positional relationship between the components is more perpendicular than "parallel", and does not mean that the structure must be perfectly perpendicular, but may be slightly inclined.
As shown in fig. 1 to 5, the invention provides a meniscus rake cutter, which comprises an operating part 1 and a cutting part 2, wherein the operating part is held by medical staff to facilitate cutting operation, and the cutting part is used for cutting off free and unstable meniscus 6 fragments along a tear seam.
The cutting part of this embodiment includes insulator 3 and cutting edge 4, and the appearance of insulator is the triangular prism, and cutting edge fixes on an arris of insulator, and cutting edge sets up the inboard that forms the contained angle in operation portion and cutting part, and the insulator base is wider than the cutting department and is convenient for strut the tear meniscus of layering, is convenient for acquire view under the arthroscope on the one hand, can effectively protect the meniscus tissue that needs to keep on the other hand.
The cutting part of the triangular prism is adopted, so that the material is less, the occupied space is small, and the joint cavity can be favorably passed without interference.
The cutting blade is arranged on the inner side of an included angle formed between the operation part and the cutting part, the operation part can be turned over backwards to cut, and the operation is simple and labor-saving.
The cutting edge part of this embodiment divides the region to be the electric conductor or all be the electric conductor, and the electric conductor circular telegram back can carry out the electricity cutting to the meniscus, makes the cutting more laborsaving, and efficiency is higher.
The included angle between the cutting part and the operating part is not limited, and can be any angle between 30-120 degrees, the cutting part is vertically arranged in the embodiment, the total length of the cutting part can be the effective length, the cutting requirement can be met by the shorter length, and the minimally invasive surgery can be conveniently realized through the surgical hole.
This embodiment adaptation joint chamber environment can carry out the cutting operation to joint chamber lower surface accessible, and it provides the help to carry out meniscus repair operation for high efficiency fast.
The embodiment is simple and practical, low in manufacturing cost and convenient to use, and has commercial popularization and application prospects.
As the improvement of this embodiment, cutting face 7 of cutting edge is the arc surface, and the cutting edge needs to have sharp sword limit to increase pressure, separate the organism tissue easily, but because this embodiment adopts the mode of electric conductor cutting, consequently, the sword limit of this embodiment has increased a less arc surface, through many times of experiments, when the circular diameter is 0.5-1.5mm, can bear the high frequency current and flow through, avoids the sword limit of crossing the point to be burnt out, has both guaranteed the cutting effect, has also guaranteed life.
Of course, it is more preferable that the arc diameter is 1 mm. The service life can reach more than several times.
As a modification of this embodiment, the cutting edge comprises an electrically conductive segment 8 provided at one end connected to the operating portion and an insulating segment 9 provided at the other end connected to the operating portion. The insulating section sets up at the front end, can prevent to cause the injury to articular cavity cartilage, simultaneously, because the cutting edge sets up the inboard that forms the contained angle at operating portion and cutting part, consequently, also can not harm the bottom region with articular cavity contact.
Furthermore, multiple tests show that when the length of the insulating section is 0.5-2mm, a better insulating effect can be achieved.
Preferably, the insulating section has a length of 0.5 to 1mm, which is most effective.
As a modification of this embodiment, the bottom of the insulator is provided with an inclined surface 10 formed by cutting off the material with a plane having an angle of 5-10 degrees with the bottom of the triangular prism, so that the distal end of the cutting portion is smaller than the proximal end. By removing the material, the material of the insulator is reduced, the trafficability characteristic of the insulator is enhanced, and the structural strength of the insulator is not affected, so that the operation is more convenient and flexible, and the improvement of the operation efficiency and accuracy are facilitated.
As an improvement of this embodiment, the cutting tool further includes a power supply, which may be a rechargeable battery, or a power plug 11 connected to an external power supply, and this embodiment is preferably a power plug, meanwhile, the operating portion of this embodiment is a hollow rod-shaped structure, a wire 12 connected to the power plug is disposed in the hollow cavity, and the other end of the wire is electrically connected to the conductive segment of the cutting blade. Thus, when the power plug is connected with an external power supply, the power plug can provide electric energy for the conductive section of the cutting blade to perform cutting operation.
As a modification of the present embodiment, the end of the operation portion is provided with a grip 13. The holding handle can be larger than the operation part, so that the holding handle is convenient to hold and perform operation.
As an improvement of this embodiment, the cutting tool further includes a smoke evacuation system, the smoke evacuation system includes smoke inlet holes 14 disposed on both sides of the cutting edge, a smoke inlet passage 15 disposed in the insulator, a smoke evacuation passage 16 disposed in the operating portion, and a negative pressure device disposed outside, the smoke inlet passage communicates with the smoke inlet holes and the smoke evacuation passage, and the smoke evacuation passage communicates with the negative pressure device. Therefore, when the cutting operation is carried out, the air in the joint cavity can be exhausted through the negative pressure device, the sight line is clearer, and the operation efficiency is higher.
As a modification of this embodiment, a control switch 17 may be provided outside the operation portion, and the control switch may be connected to the wire to control the operations of smoke evacuation and cutting, so that the operation is more convenient.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims (7)

1. Meniscus anterior angle cutter, its characterized in that: including the operating portion and the cutting part that is the contained angle setting with the operating portion, the cutting part includes that the appearance is the insulator of triangular prism and the cutting sword that sets up on an edge of insulator, the cutting sword sets up the inboard that forms the contained angle at operating portion and cutting part, and at least partial region is the electric conductor.
2. The meniscal rake cutter of claim 1, wherein: the cutting surface of the cutting edge is a circular arc surface with the diameter of 0.5-1.5 mm.
3. The meniscal rake cutter of claim 1, wherein: the cutting edge comprises a conductive section and an insulating section, the conductive section is arranged at one end connected with the operation part, the insulating section is arranged at the other end connected with the operation part, and the length of the insulating section is 0.5-2 mm.
4. The meniscal rake cutter of claim 4, wherein: the bottom of the insulator is provided with an inclined surface, the inclined surface is formed by cutting off materials by adopting a plane which forms an included angle of 5-10 degrees with the bottom of the triangular prism, and the far end of the cutting part is smaller than the near end.
5. The meniscal rake cutter of claim 1, wherein: the cutting blade is characterized by further comprising a power plug, the operating portion is of a hollow rod-shaped structure, a lead used for being connected with the power plug is arranged in the hollow cavity, and the other end of the lead is electrically communicated with the conductive section of the cutting blade.
6. The meniscal rake cutter of any of claims 1-5, wherein: the end part of the operation part is provided with a holding handle.
7. The meniscal rake cutter of any of claims 1-5, wherein: the smoke exhaust system comprises smoke inlet holes formed in two sides of the cutting edge, a smoke inlet channel arranged in the insulating body, a smoke exhaust channel arranged in the operation portion and a negative pressure device arranged outside, the smoke inlet channel is communicated with the smoke inlet holes and the smoke exhaust channel, and the smoke exhaust channel is communicated with the negative pressure device.
CN202210383927.2A 2022-04-12 2022-04-12 Meniscus anterior horn cutter Pending CN114601553A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210383927.2A CN114601553A (en) 2022-04-12 2022-04-12 Meniscus anterior horn cutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210383927.2A CN114601553A (en) 2022-04-12 2022-04-12 Meniscus anterior horn cutter

Publications (1)

Publication Number Publication Date
CN114601553A true CN114601553A (en) 2022-06-10

Family

ID=81869282

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210383927.2A Pending CN114601553A (en) 2022-04-12 2022-04-12 Meniscus anterior horn cutter

Country Status (1)

Country Link
CN (1) CN114601553A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102525602A (en) * 2010-10-07 2012-07-04 艾伦·G·爱尔曼 Electrosurgical cobb elevator instrument
CN204839645U (en) * 2015-08-06 2015-12-09 十堰市太和医院 Joint operation is with meniscus anterior angle sword and gleitbretter
CN208864475U (en) * 2017-10-20 2019-05-17 成都美创医疗科技股份有限公司 A kind of bone surgery electrode knife

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102525602A (en) * 2010-10-07 2012-07-04 艾伦·G·爱尔曼 Electrosurgical cobb elevator instrument
CN204839645U (en) * 2015-08-06 2015-12-09 十堰市太和医院 Joint operation is with meniscus anterior angle sword and gleitbretter
CN208864475U (en) * 2017-10-20 2019-05-17 成都美创医疗科技股份有限公司 A kind of bone surgery electrode knife

Similar Documents

Publication Publication Date Title
US5395368A (en) Multiple-wire electrosurgical electrodes
ES2360971T3 (en) COMBINED POLIPECTOMY DEVICE BASED ON A WIRE ELECTRODE AND A TUBULAR ELECTRODE.
EP2389887B1 (en) Polyp removal jaws
US6024744A (en) Combined bipolar scissor and grasper
US5603712A (en) Bipola suction tonsillar dissector
US20100087814A1 (en) Device for cutting and coagulating tissue
JP2001511043A (en) Mechanical and electrical endoscopic surgical instruments
WO2004026108A3 (en) Finger tip electrosurgical medical device
US20220226036A1 (en) Multi-functional surgical cautery device, system and method of use
US6669695B2 (en) Multifunctional electrosurgical instrument
US8992525B2 (en) Surgical instrument
CN114601553A (en) Meniscus anterior horn cutter
CN110946644B (en) Energy-based tissue sample removal
US20220031390A1 (en) Bipolar tool for separating tissue adhesions or tunneling
EP2429437B1 (en) Sub-xiphoid ablation clamp
CN109009412B (en) Electric coagulation cutter
CN110897707A (en) Novel open operation area deep illumination smoking measurement function mixed type tool bit monopole ablation electrode
CN211796833U (en) Mixed type tool bit ablation electrode with deep lighting and smoking measurement for open surgery
CN219594784U (en) Separated bipolar cutter
CN216365251U (en) Electric knife capable of preventing secondary damage
CN211187503U (en) Repeatedly-usable scissors with electric excision electric coagulation function, vascular forceps and curet set
CN216854792U (en) Medical science is cosmetic uses minimal access surgery sword
CN213098271U (en) Electrotome pen capable of being adjusted in bending mode
CN218552430U (en) Surgical electric knife with smoke suction device
CN211484874U (en) Bipolar electric coagulation forceps and bipolar electric coagulation device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination