CN114886485B - Safe and visible KV double-channel working sleeve and use method thereof - Google Patents
Safe and visible KV double-channel working sleeve and use method thereof Download PDFInfo
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- CN114886485B CN114886485B CN202210681054.3A CN202210681054A CN114886485B CN 114886485 B CN114886485 B CN 114886485B CN 202210681054 A CN202210681054 A CN 202210681054A CN 114886485 B CN114886485 B CN 114886485B
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000000007 visual effect Effects 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 230000008569 process Effects 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 8
- 230000001154 acute effect Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 241000405070 Percophidae Species 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 abstract description 11
- 208000028389 Nerve injury Diseases 0.000 abstract description 9
- 230000008764 nerve damage Effects 0.000 abstract description 9
- 210000001951 dura mater Anatomy 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 6
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- 210000004872 soft tissue Anatomy 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000001356 surgical procedure Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 206010063395 Dural tear Diseases 0.000 description 2
- 241000425571 Trepanes Species 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- 230000023597 hemostasis Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 241001631457 Cannula Species 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 208000003618 Intervertebral Disc Displacement Diseases 0.000 description 1
- 206010061246 Intervertebral disc degeneration Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/00234—Surgical instruments, devices or methods for minimally invasive surgery
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/36—Image-producing devices or illumination devices not otherwise provided for
- A61B90/361—Image-producing devices, e.g. surgical cameras
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/36—Image-producing devices or illumination devices not otherwise provided for
- A61B90/37—Surgical systems with images on a monitor during operation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/00234—Surgical instruments, devices or methods for minimally invasive surgery
- A61B2017/00238—Type of minimally invasive operation
- A61B2017/00261—Discectomy
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/00234—Surgical instruments, devices or methods for minimally invasive surgery
- A61B2017/00292—Surgical instruments, devices or methods for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
- A61B2017/00296—Surgical instruments, devices or methods for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means mounted on an endoscope
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/00234—Surgical instruments, devices or methods for minimally invasive surgery
- A61B2017/00292—Surgical instruments, devices or methods for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
- A61B2017/0034—Surgical instruments, devices or methods 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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Abstract
本发明属于医用套管技术领域，公开了一种安全可视KV双通道工作套管及其使用方法，包括K工作套管和V工作套管；K工作套管内部开设有用于放置V工作套管、环锯和磨钻手术器械的工作通道；V工作套管内部开设有用于放置椎间孔镜的内镜通道；K工作套管的内壁与V工作套管外壁间存在缝隙，K工作套管和V工作套管配合锁紧后两者出口一端预留有一定的距离；K工作套管包括K套管管体、K套管底座和锁定钉，V工作套管包括V套管管体和V套管底座。本发明能够避免保护套管和工作套管反复置换造成的硬膜和神经损伤的风险，同时避免工作套管偏移问题，保证了手术的精度，提高了手术效率，增加了工作通道成形的成功率。
The invention belongs to the technical field of medical sleeves, and discloses a safe and visual KV double-channel working sleeve and a method of using the same, including a K working sleeve and a V working sleeve; a working channel for placing a V working sleeve, a trephine and a grinding drill surgical instrument is provided inside the K working sleeve; an endoscope channel for placing a foraminal lens is provided inside the V working sleeve; a gap exists between the inner wall of the K working sleeve and the outer wall of the V working sleeve, and a certain distance is reserved at one end of the outlet of the two after the K working sleeve and the V working sleeve are locked together; the K working sleeve includes a K sleeve body, a K sleeve base and a locking nail, and the V working sleeve includes a V sleeve body and a V sleeve base. The present invention can avoid the risk of dura mater and nerve damage caused by repeated replacement of the protective sleeve and the working sleeve, and at the same time avoid the problem of working sleeve deviation, thereby ensuring the accuracy of the operation, improving the efficiency of the operation, and increasing the success rate of the forming of the working channel.
Description
Technical Field
The invention belongs to the technical field of medical cannulas, and particularly relates to a safe and visible KV double-channel working cannula and a use method thereof.
Background
At present, a percutaneous foramen mirror is a medical instrument widely used for treating spinal disc degeneration diseases, and the current operation method for treating spinal disc herniation mainly comprises the steps of establishing a 7mm channel at an affected part by a lateral rear percutaneous foramen access, putting the percutaneous foramen mirror into an inter-foramen mirror to connect an imaging system, removing a protrusion disc under an endoscope to loosen nerves so as to achieve the aim of clinical healing, and the other method is a method for performing inter-discectomy by a back percutaneous disc access, cutting a 10mm incision at the affected part, opening a window for the vertebral lamina of a spinal column by a circular saw or a grinding drill, establishing a working channel by nucleus pulposus forceps, taking out the disc, performing decompression hemostasis and suturing skin of nerve roots, relieving compression of the disc on the nerve roots, and achieving the aim of treatment. The existing intervertebral foramen mirror surgical instruments comprise a positioning instrument, a working channel establishing instrument, a working sleeve instrument, a protective sleeve instrument, an endoscope instrument, a bone treatment and soft tissue treatment instrument and the like, wherein the working channel establishing instrument consists of a guide rod and an expanding tube which expands step by step, the protective sleeve establishes a safety channel for a circular saw and a grinding drill, peripheral soft tissue nerves are prevented from being damaged, and the working sleeve plays important roles of supporting the working channel, protecting peripheral tissues, accommodating the endoscope for operation and the like. When a window is opened by using a trepan or a grinding drill to establish a working channel in the vertebral lamina of the spine, the intervertebral foramoscope technology can be completed by repeatedly operating the replacement of the protective sleeve and the working sleeve, increases the risk of nerve injury and dural tearing operation possibly caused by soft tissue re-expansion, and simultaneously can cause the problem of working sleeve deflection.
CN211243489U, an intervertebral foramen endoscope working sleeve with kirschner wire, comprising a working sleeve and a kirschner wire, wherein the working sleeve is provided with a raised kirschner wire guiding sleeve, the guiding channel of the kirschner wire guiding sleeve is communicated with the crossing surface of the working channel of the working sleeve, the left end of the working sleeve is connected with a connecting piece in an interference way, the connecting piece comprises a holding base and an embedded part, the inner wall of the embedded part is provided with a rotation stopping groove matched with the kirschner wire guiding sleeve, the left end of the working sleeve is inserted into the inserting channel of the connecting piece and the kirschner wire guiding sleeve is inserted into the rotation stopping groove, the end surface of the working sleeve is level with the end surface of the embedded part, the kirschner wire is inserted into the kirschner wire guiding sleeve of the working sleeve, and the tip of the kirschner wire extends out from the right end of the working sleeve.
The intervertebral foramen mirror protection working sleeve comprises a main sleeve body and an auxiliary sleeve, wherein the main sleeve body comprises a cylindrical main sleeve body and a main sleeve handle fixedly connected with the main sleeve body, scale marks are arranged on the outer wall of the main sleeve body, the head of the main sleeve body is a main sleeve bevel part, the main sleeve bevel part and the horizontal surface form an acute angle, the auxiliary sleeve is arranged in the main sleeve body, the auxiliary sleeve comprises a semicircular auxiliary sleeve body and an auxiliary sleeve handle detachably connected with the auxiliary sleeve body, a gap is reserved between the outer wall of the auxiliary sleeve body and the inner wall of the main sleeve body, the outer wall of the auxiliary sleeve body is provided with the scale marks, the auxiliary sleeve body comprises a tail semicircular arc section, a middle circular ring section and a head semicircular arc section which are sequentially and fixedly connected, the tail semicircular arc section is an upper semicircle, and the head semicircular arc section is a lower semicircle.
The above two patents do not avoid repeated replacement operation of the protective sleeve and the working sleeve when the working channel is established by windowing, and the risks of nerve injury and dural tear surgery possibly caused by soft tissue re-expansion are not avoided, and meanwhile, the offset problem caused by repeated replacement of the protective sleeve and the working sleeve is not avoided.
Through the above analysis, the problems and defects existing in the prior art are as follows:
When the existing working sleeve is used, the replacement of the protective sleeve and the working sleeve is required to be operated repeatedly, so that the risks of nerve injury and dural tear operation possibly caused by soft tissue re-expansion are increased, the working efficiency is low, and the problem of working sleeve deflection exists.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention provides a safe and visible KV double-channel working sleeve and a use method thereof.
The invention is realized in such a way that a safe and visible KV double-channel working sleeve is provided
Comprises a K working sleeve and a V working sleeve;
a working channel for placing the V-shaped working sleeve, the trephine and the abrasive drilling surgical instrument is formed in the K-shaped working sleeve;
an endoscope channel for placing an intervertebral foramen mirror is formed in the V-shaped working sleeve;
The K working sleeve handle one side is provided with built-in chute, and pivoted hasp in built-in chute, correspondingly is provided with the constant head tank in V working sleeve handle one side, in the operation in-process, after operation K working sleeve and the suit of V working sleeve are combined, through dialling the hasp to the one end of built-in chute, the inboard end of hasp can insert in the constant head tank and carry out spacingly, can lock K working sleeve and V working sleeve from this, improves the fixed action to backbone endoscope.
Further, the head of the K sleeve pipe body is provided with a 10-degree bevel opening surface, the edge of the 10-degree bevel opening surface structure opening surface is provided with an obtuse angle, the head of the V sleeve pipe body is provided with a 30-degree bevel opening surface, and the edge of the 30-degree bevel opening surface structure opening surface is provided with an obtuse angle.
Further, the V working sleeve is sleeved on the inner side of the K working sleeve, a gap of 0.1 to 0.2mm exists between the inner wall of the K working sleeve and the outer wall of the V working sleeve, the situation that the K working sleeve and the V working sleeve generate overlarge resistance in the replacement process and are difficult to operate is avoided, and a distance of 30 to 45mm is reserved between one ends of the outlets of the K working sleeve and the V working sleeve after the K working sleeve are embedded and matched and locked, so that the exposed length of the trepan inserted into the K working sleeve is better observed.
Further, the K working sleeve comprises a K sleeve pipe body, a K sleeve pipe base and locking nails, wherein the K sleeve pipe base is fixedly welded at the inlet end of the K sleeve pipe body, threaded holes are formed in the two side faces of the K sleeve pipe base, and the K sleeve pipe base is connected with the locking nails through threads;
The V working sleeve comprises a V sleeve body and a V sleeve base, and a hemispherical clamping groove matched with the locking nail is formed in the V sleeve base.
Further, the K sleeve base is provided with a step surface, and the step surface is provided with a through hole matched with the K sleeve body.
Further, the locking nail is provided with a threaded pipe, a spring and steel balls, the spring and the steel balls are arranged on the inner side of the threaded pipe, the steel balls are located at the outer end of the inner side of the threaded pipe, the threaded pipe is connected with a threaded hole of the K sleeve base, and the steel balls are clamped with a hemispherical clamping groove of the V working sleeve.
Further, the head of the K sleeve pipe body is provided with a duckbill-shaped structure opening surface which protrudes in a stepped sharp manner, the head end bevel part of the duckbill-shaped structure opening surface is provided with an acute angle with the horizontal surface, and the edge of the duckbill-shaped structure opening surface is provided with an obtuse angle.
Further, the head of the V-shaped sleeve pipe body is a tongue-shaped structure opening surface, the bevel part of the tongue-shaped structure opening surface forms an acute angle with the horizontal plane, and the edge of the tongue-shaped structure opening surface forms an obtuse angle.
Furthermore, the K working sleeve and the V working sleeve are made of stainless steel materials, carbon fiber materials or high polymer plastic materials.
Further, the K working sleeve has an inner diameter of 8mm and 9mm, an outer diameter of 9mm and 10mm, and a working length of 185mm and 155mm.
Further, the V working sleeve has an inner diameter of 6.5mm and 7.5mm, an outer diameter of 7.8mm and 8.8mm, and a working length of 205mm and 175mm.
Further, a gap of 0.1 to 0.2mm exists between the inner wall of the K working sleeve and the outer wall of the V working sleeve, the K working sleeve and the V working sleeve are prevented from generating excessive resistance in the replacement process and are not easy to operate, a distance of 30 to 45mm is reserved between one ends of the outlets of the K working sleeve and the V working sleeve after the K working sleeve and the V working sleeve are embedded and matched for locking, and accordingly the exposed length of the trephine inserted into the K working sleeve is better observed, and the operation risk is reduced.
Another object of the present invention is to provide a method for using a safe and visible KV dual-channel working sleeve, the method for using a safe and visible KV dual-channel working sleeve comprising:
step one, a K sleeve pipe body is placed into a K sleeve base, so that the end face of the inlet end of the K sleeve pipe body is flush with the upper surface of a through hole of a step surface of the K sleeve base;
step two, performing laser welding on an upper end surface intersecting line and a lower end surface intersecting line of an assembling position of the K sleeve base, so that a straight plane of the K sleeve base is perpendicular to an opening surface of the duckbill structure;
Step three, respectively screwing the two locking nails into threaded holes on the outer sides of the two inclined planes of the K sleeve base, so that the steel balls are exposed out of the inner sides of the two inclined planes;
step four, the V-shaped sleeve body is placed into the V-shaped sleeve base, so that the end face of the inlet end of the V-shaped sleeve body is flush with the upper surface of the through hole of the V-shaped sleeve base;
And fifthly, carrying out laser welding on an upper end surface intersecting line and a lower end surface intersecting line of the assembling position of the V-shaped sleeve base, enabling the straight plane of the V-shaped sleeve base to be perpendicular to the opening surface of the tongue-shaped structure, inserting the V-shaped working sleeve into the K-shaped working sleeve, and enabling the steel balls of the locking nails to be just in the hemispherical clamping grooves.
In combination with the above technical solution and the technical problems to be solved, please analyze the following aspects to provide the following advantages and positive effects:
First, aiming at the technical problems in the prior art and the difficulty of solving the problems, the technical problems solved by the technical proposal of the invention are analyzed in detail and deeply by tightly combining the technical proposal to be protected, the results and data in the research and development process, and the like, and some technical effects brought after the problems are solved have creative technical effects. The specific description is as follows:
(1) By applying the invention, the design of the KV working sleeve accords with the three-dimensional anatomical structure of the intervertebral window and the intervertebral foramen, so that the extra damage to a patient in the placing process is reduced, and the safety is improved;
(2) Through the application of the invention, the visual trephine works under the protection of the K working sleeve, meanwhile, the endoscope is arranged in the visual trephine, the whole-course visual lower vertebral lamina windowing can be realized under the endoscope, the V working sleeve is replaced by the visual trephine, the visual operation can be realized under the endoscope by arranging the V working sleeve in the endoscope, the operation is simpler, more convenient and safer, and the operation difficulty is reduced;
(3) By applying the invention, after the working channel is established by expanding step by step, the protection sleeve and the working sleeve do not need to be replaced repeatedly, the whole process can avoid the risk of hard membrane and nerve injury caused by the repeated replacement of the protection sleeve and the working sleeve, the operation is safer, and the operation efficiency is improved;
(4) By applying the invention, the problem of working sleeve deflection caused by repeated replacement of the protective sleeve and the working sleeve is avoided, the precision of the operation is ensured, and the success rate of trephine forming is increased.
Secondly, the technical scheme is regarded as a whole or from the perspective of products, and the technical scheme to be protected has the following technical effects and advantages:
The invention can avoid the risk of dura mater and nerve injury caused by repeated replacement of the protective sleeve and the working sleeve, simultaneously avoid the problem of deviation of the working sleeve, ensure the precision of the operation, improve the operation efficiency and increase the success rate of forming the working channel.
Thirdly, as inventive supplementary evidence of the claims of the present invention, the following important aspects are also presented:
(1) The expected benefits and commercial values of the technical scheme of the invention are that after the technical scheme of the invention is converted, after the technical scheme is used by a clinician, the problems of nerve damage, risk of epidural tearing surgery and inaccurate positioning of a working sleeve caused by the establishment of a working channel in the traditional foramen surgery can be expected to be solved, the safe and visible KV double-channel working sleeve can become an instrument necessary for the foramen surgery, the future benefits are expected to be increased by 5-10% per year, and the benefits in the early popularization stage can be increased in an explosive manner.
(2) The technical scheme solves the technical problems that people are long eager to solve, but are not successful all the time, the technical scheme solves the technical problems that in the prior art, the bone tissue needs to be perforated in the process of the foramen centralis operation, the risk of nerve injury and dural tearing operation is caused by repeatedly operating the protective sleeve and the working sleeve, and meanwhile, the working sleeve is offset caused by repeatedly replacing the protective sleeve and the working sleeve, so that the technical problem that how to provide a method for efficiently and accurately establishing the endoscope working channel is the technical problem to be solved in the invention patent.
Drawings
FIG. 1 is a schematic structural view of a safe and visible KV dual-channel working sleeve provided by an embodiment of the invention;
FIG. 2 is a schematic structural view of a K working sleeve according to an embodiment of the present invention;
Fig. 3 is a schematic structural diagram of a K-tube base according to an embodiment of the present invention;
FIG. 4 is a schematic view of the structure of a V-shaped working sleeve according to an embodiment of the present invention;
Fig. 5 is a schematic structural view of a V-shaped casing base according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of a KV casing distal end opening face assembly provided by an embodiment of the invention;
FIG. 7 is a schematic structural diagram of a connection mode of each sub-component of the KV working sleeve provided by the embodiment of the invention;
The welding device comprises a1, a K sleeve pipe body, a 2, a K sleeve base, a 3, a V sleeve pipe body, a 4, a V sleeve base, a 5, a locking pin, a 6, a first inlet end face, a 7, a first through hole upper surface, a8, a first upper end face intersecting line, a 9, a first lower end face intersecting line, a 10, a first straight plane, a 11, a duckbill structure opening face, a12, an inclined plane outer side, a 13, a threaded hole, a 14, a steel ball, a 15, an inclined plane inner side, a 16, a second inlet end face, a17, a second through hole upper surface, a 18, a second upper end face intersecting line, a 19, a second lower end face intersecting line, a 20, a second straight plane, a 21, a tongue structure opening face, a 22, a V working sleeve, a 23, a K working sleeve, a 24, a hemispherical clamping groove, a 25, a spring, a 26, a K working sleeve welding position and a 27.
Detailed Description
The present invention will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
In order to fully understand how the invention may be embodied by those skilled in the art, this section is an illustrative embodiment in which the claims are presented for purposes of illustration.
As shown in fig. 1, the safe and visible KV dual-channel working sleeve provided by the embodiment of the invention includes a K working sleeve 23 and a V working sleeve 22. The inner surface of the inside of the tube body of the K working cannula 23 forms a working channel for placing the V working cannula, the trephine and the abrasive drill surgical instruments, and the inner surface of the inside of the V working cannula 22 forms an endoscope channel for placing the intervertebral foramen mirror. A gap exists between the inner wall of the K working sleeve 23 and the outer wall of the V working sleeve 22. A certain distance is reserved between one ends of the outlets of the K working sleeve 23 and the V working sleeve 22 after the K working sleeve and the V working sleeve are embedded and locked in a matched mode.
As shown in fig. 2 and 3, the K working sleeve 23 in the embodiment of the present invention includes a K sleeve body 1, a K sleeve base 2 and a locking nail 5, where the K sleeve base 2 is fixedly welded to an inlet end of the K sleeve body 1, two side surfaces of the K sleeve base 2 are respectively provided with a threaded hole 13, and the K sleeve base 2 is connected with the locking nail 5 through threads.
The K sleeve pipe body 1 is arranged along the horizontal direction, the K sleeve pipe body 1 is of a hollow tubular structure, and an inlet and an outlet are respectively formed at two ends of the K sleeve pipe body 1. The K sleeve base 2 is provided with a step surface, and the step surface is provided with a through hole matched with the K sleeve body 1. The head of the K sleeve pipe body 1 is provided with a duckbill-shaped structure opening surface 11 protruding in a stepped sharp manner, the inclined opening part of the head end of the duckbill-shaped structure opening surface 11 is provided with an acute angle with the horizontal plane, and the edge of the duckbill-shaped structure opening surface 11 is provided with an obtuse angle.
The locking nail 5 in the embodiment of the invention is provided with a threaded pipe, a spring and steel balls 14, wherein the spring and the steel balls 14 are arranged on the inner side of the threaded pipe, the steel balls 4 are positioned on the outer end of the inner side of the threaded pipe, and the threaded pipe is connected with a threaded hole of a K sleeve base.
As shown in fig. 4 and 5, the V-shaped working sleeve 22 in the embodiment of the present invention includes a V-shaped sleeve body 3 and a V-shaped sleeve base 4, and a hemispherical clamping groove 24 matched with the locking nail 5 is formed on the V-shaped sleeve base 4. The head of the V-shaped sleeve pipe body 3 is provided with a tongue-shaped structure opening surface 21, an inclined opening part of the tongue-shaped structure opening surface 21 forms an acute angle with the horizontal plane, and the edge of the tongue-shaped structure opening surface 21 forms an obtuse angle. The V sleeve pipe body 3 is arranged along the horizontal direction, the V sleeve pipe body 3 is of a hollow tubular structure, and an inlet and an outlet are respectively formed at two ends of the V sleeve pipe body 3. Preferably, the K working sleeve 23 and the V working sleeve 22 in the embodiment of the present invention are both stainless steel materials.
Fig. 6 is a schematic structural diagram of the assembly of the far-end opening face of the KV sleeve provided by the embodiment of the invention, and fig. 7 is a schematic structural diagram of the connection mode of each sub-component of the KV working sleeve provided by the embodiment of the invention.
Preferably, the shape of the K sleeve base 2 in the embodiment of the invention is designed to be in a shape of a letter "K", the shape of the V sleeve base 4 is designed to be in a shape of a letter "V", and the K sleeve base 2 and the V sleeve base 4 are designed to be in embedded fit of a letter "K". The embedded type K < "> is clamped with the hemispherical clamping groove 24 through the locking nail 5.
Preferably, the K working sleeve 23 in the embodiments of the present invention has inner diameters of 8mm and 9mm, outer diameters of 9mm and 10mm, and working lengths of 185mm and 155mm.
Preferably, the V-shaped working sleeve 22 in the present embodiment has an inner diameter of 6.5mm and 7.5mm, an outer diameter of 7.8mm and 8.8mm, and a working length of 205mm and 175mm.
The application method of the safe and visible KV double-channel working sleeve provided by the embodiment of the invention comprises the following steps:
Firstly, a K sleeve pipe body 1 is placed into a K sleeve base 2, the first inlet end face 6 of the K sleeve pipe body 1 is guaranteed to be flush with the upper surface 7 of a first through hole of a step surface of the K sleeve base 2, a first upper end face intersecting line 8 and a first lower end face intersecting line 9 of an assembling position are subjected to laser welding, a first straight plane 10 of the K sleeve base 2 is guaranteed to be perpendicular to an opening surface 11 of a duckbill structure, two locking nails 5 are respectively screwed into threaded holes 13 on the outer sides 12 of the two inclined planes of the K sleeve base 2, steel balls 14 are guaranteed to be exposed to the inner sides 15 of the two inclined planes, a V sleeve pipe body 3 is placed into a V sleeve base 4, the second inlet end face 16 of the V sleeve pipe body 3 is guaranteed to be flush with the upper surface 17 of a second through hole of the V sleeve base 4, a second upper end face intersecting line 18 and a second lower end face intersecting line 19 of the assembling position are guaranteed to be subjected to laser welding, a second straight plane 20 of the V sleeve base 4 is guaranteed to be perpendicular to an opening surface 21 of a tongue-shaped structure, a V working sleeve 22 is guaranteed to be inserted into a K working sleeve 23, and the steel balls 14 of the locking nails 5 are clamped in a hemispherical clamping groove 24.
The invention does not need to repeatedly replace the V working sleeve 22 and the K working sleeve 23 when the working channel is built after the expansion step by step, the trephine or the abrasive drill is used for windowing the vertebral lamina under the protection of the K working sleeve 23, the trephine or the abrasive drill is taken out, the K working sleeve 23 is inserted, the endoscope is inserted into the K working sleeve 23, the disc is taken out by the nucleus pulposus forceps, the nerve root is decompressed, and the operation electrode is used for hemostasis, so that the risk of dura mater and nerve injury caused by the repeated replacement of the V working sleeve 22 and the K working sleeve 23 can be avoided in the whole process, the problem of the offset of the working sleeve is avoided, the operation precision is ensured, the operation efficiency is improved, and the success rate of forming the working channel is increased.
In the description of the present invention, unless otherwise indicated, the meaning of "plurality" is two or more, and the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The foregoing is merely illustrative of specific embodiments of the present invention, and the scope of the invention is not limited thereto, but any modifications, equivalents, improvements and alternatives falling within the spirit and principles of the present invention will be apparent to those skilled in the art within the scope of the present invention.
Claims (8)
1. The safe visual KV double-channel working sleeve is characterized by comprising a K working sleeve and a V working sleeve;
comprises a K working sleeve and a V working sleeve;
The K working sleeve is internally provided with a working channel for placing a V working sleeve, a trephine and a grinding drill surgical instrument, and comprises a K sleeve body, a K sleeve base and a locking nail;
an endoscope channel for placing an intervertebral foramen mirror is formed in the V-shaped working sleeve;
a threaded hole is formed in one side of the handle of the K working sleeve, a locking nail rotating in the threaded hole, and correspondingly, a hemispherical clamping groove is formed in one side of the handle of the V working sleeve, and in the operation process, after the K working sleeve and the V working sleeve are sleeved and combined, the inner side end of the locking nail is inserted into the hemispherical clamping groove to limit by shifting the locking nail to one end of the threaded hole, so that the K working sleeve and the V working sleeve are locked;
the head of the K sleeve pipe body is provided with a 10-degree bevel opening surface, and the edge of the opening surface of the 10-degree bevel opening surface structure is provided with an obtuse angle;
The V working sleeve is sleeved on the inner side of the K working sleeve, a gap of 0.1-0.2 mm exists between the inner wall of the K working sleeve and the outer wall of the V working sleeve, and a distance of 30-45 mm is reserved between one ends of the outlets of the K working sleeve and the V working sleeve after the K working sleeve and the V working sleeve are embedded and matched and locked.
2. The safe and visible KV double-channel working sleeve is characterized in that a K sleeve base is fixedly welded to the inlet end of a K sleeve body, threaded holes are formed in the directions of two side surfaces of the K sleeve base, and the K sleeve base is connected with a locking nail through threads;
The V working sleeve comprises a V sleeve body and a V sleeve base, and a hemispherical clamping groove matched with the locking nail is formed in the V sleeve base.
3. The safe and visible KV double-channel working sleeve is characterized in that a step surface is arranged on the K sleeve base, and a through hole matched with a K sleeve body is formed in the step surface;
The locking nail is provided with a threaded pipe, a spring and steel balls, the spring and the steel balls are arranged on the inner side of the threaded pipe, the steel balls are located at the outer end of the inner side of the threaded pipe, the threaded pipe is connected with a threaded hole of a K sleeve base, and the steel balls are clamped with a hemispherical clamping groove of a V working sleeve.
4. The safe and visible KV double-channel working sleeve is characterized in that the head of the K sleeve body is provided with a duckbill-shaped structure opening surface which protrudes in a stepped sharp manner, the head end bevel part of the duckbill-shaped structure opening surface forms an acute angle with the horizontal plane, and the edge of the duckbill-shaped structure opening surface forms an obtuse angle;
The head of the V-shaped sleeve pipe body is a tongue-shaped structure opening surface, the bevel part of the tongue-shaped structure opening surface forms an acute angle with the horizontal plane, and the edge of the tongue-shaped structure opening surface forms an obtuse angle.
5. The safety visual KV two-channel working sleeve of claim 1, wherein the K working sleeve and the V working sleeve are both made of stainless steel material.
6. The safety visual KV two-channel working cannula of claim 1, wherein the K working cannula has an inner diameter of 8mm or 9mm, an outer diameter of 9mm or 10mm, and a working length of 185mm or 155mm.
7. The safety visual KV two-channel working cannula of claim 1, wherein the V working cannula has an inner diameter of 6.5mm or 7.5mm, an outer diameter of 7.8mm or 8.8mm, and a working length of 205mm or 175mm.
8. A method for using the safe and visible KV dual-channel working sleeve according to any one of claims 1 to 7, characterized in that the method for using the safe and visible KV dual-channel working sleeve comprises:
step one, a K sleeve pipe body is placed into a K sleeve base, so that the end face of the inlet end of the K sleeve pipe body is flush with the upper surface of a through hole of a step surface of the K sleeve base;
step two, performing laser welding on an upper end surface intersecting line and a lower end surface intersecting line of an assembling position of the K sleeve base, so that a straight plane of the K sleeve base is perpendicular to an opening surface of the duckbill structure;
Step three, respectively screwing the two locking nails into threaded holes on the outer sides of the two inclined planes of the K sleeve base, so that the steel balls are exposed out of the inner sides of the two inclined planes;
step four, the V-shaped sleeve body is placed into the V-shaped sleeve base, so that the end face of the inlet end of the V-shaped sleeve body is flush with the upper surface of the through hole of the V-shaped sleeve base;
And fifthly, carrying out laser welding on an upper end surface intersecting line and a lower end surface intersecting line of the assembling position of the V-shaped sleeve base, enabling the straight plane of the V-shaped sleeve base to be perpendicular to the opening surface of the tongue-shaped structure, inserting the V-shaped working sleeve into the K-shaped working sleeve, and enabling the steel balls of the locking nails to be just in the hemispherical clamping grooves.
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| CN213993688U (en) * | 2020-10-14 | 2021-08-20 | 云南省玉溪市人民医院 | An intervertebral foramen surgery device |
| CN219250272U (en) * | 2022-06-16 | 2023-06-27 | 上海朗迈医疗器械科技有限公司 | Safe visual KV binary channels work sleeve |
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|---|---|---|---|---|
| EP1206220B1 (en) * | 1999-07-30 | 2006-09-20 | Douglas E. Ott | Perforated trocar sleeve |
| FR2800283B1 (en) * | 1999-11-03 | 2002-01-04 | Florence Rampillon | LIPOSCULPTURE PROCESS AND INSTRUMENTS |
| CN2877602Y (en) * | 2006-01-19 | 2007-03-14 | 林杨 | Percutaneous puncture lumbar intervertebral disc microtrauma operation visual manipulater |
| DE102009033314A1 (en) * | 2009-07-15 | 2011-01-20 | Pajunk Gmbh & Co. Kg Besitzverwaltung | Balloon laparoscope, trocar sleeve and closure insert for a trocar sleeve |
| CN105231979B (en) * | 2015-10-19 | 2017-06-06 | 珠海康弘发展有限公司 | Medical endoscope, interior outer sheath part and medical endoscope system |
| CN209269834U (en) * | 2018-10-10 | 2019-08-20 | 上海契斯特医疗科技公司 | Positioning device is used in a kind of puncture |
| CN212037607U (en) * | 2019-12-19 | 2020-12-01 | 广州新诚生物科技有限公司 | Conveying system for shoulder joint saccule |
| CN212395017U (en) * | 2020-04-03 | 2021-01-26 | 张坤生 | Pore diameter channel painless anesthetic needle |
| CN215018655U (en) * | 2021-04-22 | 2021-12-07 | 常州闻拓医疗器械有限公司 | Locking sleeve |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN213993688U (en) * | 2020-10-14 | 2021-08-20 | 云南省玉溪市人民医院 | An intervertebral foramen surgery device |
| CN219250272U (en) * | 2022-06-16 | 2023-06-27 | 上海朗迈医疗器械科技有限公司 | Safe visual KV binary channels work sleeve |
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