CN115005899A - Disposable aseptic backbone is multi-functional working sleeve pipe for minimal access surgery - Google Patents
Disposable aseptic backbone is multi-functional working sleeve pipe for minimal access surgery Download PDFInfo
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- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 claims description 3
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/0023—Surgical instruments, devices or methods, e.g. tourniquets disposable
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
- A61B2017/00296—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means mounted on an endoscope
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
- A61B2017/0034—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means adapted to be inserted through a working channel of an endoscope
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Abstract
The invention belongs to the technical field of medical instruments, and discloses a disposable sterile multifunctional working sleeve for minimally invasive spine surgery, which is provided with an outer tube and an inner tube, wherein the outer tube and the inner tube are designed in a split type and can be detached; the inner pipe is embedded in the outer pipe, the outer pipe and the fixing frame are of an integral structure and cannot be detached, the fixing frame extends outwards in a flange mode and expands outwards from the pipe wall, the fixing frame can play a role in supporting and fixing the sleeve, and the fixing frame is designed to be a U-shaped opening and is easy to match with a fixing arm for clamping and holding; the top of the outer pipe is respectively provided with a water inlet channel and a water outlet channel, and the upper end of the outer pipe is provided with a fixing frame; the working sleeve is provided with two independent non-coaxial channels which are respectively an instrument working channel and a borescope channel. The invention can ensure that the instrument is operated and the fusion cage is placed under visualization, thereby reducing the risk of nerve tissue damage; meanwhile, the fixing mode of the inner sleeve and the outer sleeve is optimized, the channel is prevented from being replaced for many times, the operation is simplified, and the operation efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a disposable multifunctional working cannula for a sterile spine minimally invasive surgery.
Background
At present, with the continuous development of medical technology, minimally invasive spine surgery is more and more widely applied. In the operation for reconstructing the stability of the spine, the intervertebral fusion is a more common operation method, and the conventional open operation has the advantages of good visual field and the like, but the wound is large, and the postoperative recovery of the patient is slower; and the minimally invasive surgery easily causes damage to nerve tissues when the fusion cage is placed due to limited visual field. Meanwhile, in the process of placing the fusion cage in the endoscopic-assisted intervertebral fusion, the whole-process visualization cannot be realized at present, and in the operation process, a doctor needs to withdraw from the endoscope for many times and change the endoscope into a channel with a larger diameter, and the operation is performed under the blind test of hand feeling depending on the perspective, so that the operation risk is increased.
In the endoscope-assisted intervertebral fusion in the prior art, the whole-course visualization cannot be realized by the design of an operation channel; meanwhile, the endoscope needs to be withdrawn for many times and the channel needs to be replaced in the operation process; meanwhile, the working sleeve is not used for one time, so that the possibility of improper sterilization and cross infection exists; meanwhile, the operation is performed under blind vision according to the experience and hand feeling of a doctor by means of perspective positioning, so that the risk of nerve tissue injury is increased.
Through the above analysis, the problems and defects of the prior art are as follows:
(1) in the endoscope-assisted intervertebral fusion in the prior art, the whole-course visualization cannot be realized by the design of an operation channel;
(2) during the operation, the endoscope needs to be withdrawn for many times, and the channel needs to be replaced;
(3) the working sleeve is not disposable, so that the possibility of improper sterilization and cross infection exists;
(4) there is a risk of damage to the nerve tissue.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a disposable multifunctional working cannula for sterile spinal minimally invasive surgery.
The invention is realized in this way, the multifunctional working cannula for the disposable aseptic spine minimally invasive surgery is provided with an outer tube and an inner tube, the outer tube and the inner tube are designed in a split type, and the outer tube and the inner tube can be detached; the inner pipe is embedded in the outer pipe, the outer pipe and the fixing frame are of an integral structure and cannot be detached, the fixing frame extends outwards in a flange mode and expands outwards from the pipe wall, the fixing frame can play a role in supporting and fixing the sleeve, and the fixing frame is designed to be a U-shaped opening and is easy to match with a fixing arm for clamping and holding; the top of the outer pipe is respectively provided with a water inlet channel and a water outlet channel, and the upper end of the outer pipe is provided with a fixing frame; the working sleeve is provided with two independent non-coaxial channels which are respectively an instrument working channel and a borescope channel.
Further, the length and the width of the instrument working channel reach 18mm and 12.2mm respectively, the cross section is crescent, and the edge is designed in a round angle manner; the borescope channel is 0.5mm apart from the instrument working channel, and the cross-sectional diameter is 6.5mm, the borescope channel is applicable to the right angle type mirror that the external diameter of work is within 3.2 mm.
Further, the wall thickness of the inner tube is 0.5mm, and the length from the bottom of the inner tube to the bottom of the outer tube 2 is 57.1 mm; the total length of the inner tube and outer tube combination is 117.1 mm.
Furthermore, the upper half part of the outer tube is made of white PC high polymer materials, and the lower half part of the outer tube is made of high polymer materials such as transparent PC, transparent ABS, transparent PEEK or transparent PMMA.
Further, the bottom of the outer pipe is a 30-degree inclined plane, and the outer diameter of the outer pipe is 20 mm; the inner diameters of the water inlet channel and the water outlet channel are respectively 1 mm.
Furthermore, the inner pipe is embedded in the outer pipe to form a split structure, the joint of the inner pipe and the outer pipe is provided with 12 wave-shaped salient points, and the inner pipe can be rotated and fixed once every 30 degrees.
Furthermore, the distance between the foramen mirror channel and the instrument working channel is 0.5mm, the diameter of the cross section is 6.5mm, and the instrument working channel is suitable for most intervertebral foramen mirrors with the diameter of 6.3mm and below.
Furthermore, the outer tube and the fixing frame are of split structures, the outer tube and the fixing frame are connected in a threaded mode, and the fixing frame extends outwards in a flange mode.
Further, the bottom of the outer pipe is of a duckbilled sawtooth structure, and the head of the duckbilled sawtooth structure is in a circular arc shape and is designed to be rounded.
Furthermore, the inner wall of the outer pipe is provided with metal scale marks; a circular channel with the diameter of 2mm is arranged on the inner wall of the inner pipe; the borescope channel is a small channel, is close to the instrument working channel and is designed into a circular structure; the instrument working channel is a large channel and is designed in a fan-shaped structure, and the instrument working channel is positioned at the upper part of the inner tube.
In combination with the technical solutions and the technical problems to be solved, please analyze the advantages and positive effects of the technical solutions to be protected in the present invention from the following aspects:
first, aiming at the technical problems existing in the prior art and the difficulty in solving the problems, the technical problems to be solved by the technical scheme of the present invention are closely combined with results, data and the like in the research and development process, and some creative technical effects are brought after the problems are solved. The specific description is as follows:
(1) by applying the invention, the circular shape and the outer diameter of the outer tube conform to the three-dimensional anatomical structure of Kambin triangle (safe right-angle triangle working area), the additional damage to a patient in the placement process is reduced, and the working channel of the inner tube can allow a phi 7.5 trepan or a bone drill to cut osseous tissues from the Kambin triangle area;
(2) by applying the invention, the large channel and the small channel are arranged in the pipe body, the large channel is an instrument working channel and is positioned in the center of the sleeve, and the small channel is positioned at one side of the sleeve. Before the interbody fusion cage is placed, the endoscope is fixed in the small channel, the LED light source is placed in the circular channel of the inner tube, and the transparent material is matched, so that a doctor can observe the condition of the instrument when the instrument is used for treating tissues, and can observe the depth and direction of the instrument by means of the endoscope, thereby reducing the risk of damaging the tissues;
(3) by applying the invention, the outer tube plays a role in fixing and protecting, and meanwhile, the endoscope is offset to one side of the inner tube, and the inner tube can be circumferentially adjusted and fixed on the outer tube, so that the operation is simpler and more convenient, and the operation time is shortened;
(4) by applying the invention, the lower part of the outer tube is made of transparent resin material, and the 3D printing technology is combined, so that the invention has the advantages of high durability and high perspective ratio, the transverse and longitudinal visual fields are enlarged, and doctors have a larger visual range when operating the endoscope and the surgical instruments, thereby improving the surgical efficiency and safety;
(5) by applying the endoscope, the water inlet and outlet channels are arranged on the two sides of the outer tube to discharge blood and cut tissues, so that the endoscope has the function of ensuring clear visual field, is beneficial to observation in an operation and saves operation time.
(6) By applying the anti-misoperation device, the bottom of the outer pipe is of a duckbilled band saw tooth type structure, the head of each sawtooth is in a circular arc shape and is subjected to round angle chamfering design, so that the fixation is easier, and meanwhile, the sharp teeth are subjected to the round angle chamfering design, so that the anti-misoperation function is protected.
Secondly, considering the technical scheme as a whole or from the perspective of products, the technical effect and advantages of the technical scheme to be protected by the invention are specifically described as follows:
the invention can ensure that the instrument is operated and the fusion cage is placed under visualization, thereby reducing the risk of nerve tissue damage; meanwhile, the fixing mode of the inner sleeve and the outer sleeve is optimized, the channel is prevented from being replaced for many times, the operation is simplified, and the operation efficiency is improved.
Third, as inventive supplementary proof of the claims of the present invention, there are several important aspects as follows:
(1) the expected income and commercial value after the technical scheme of the invention is converted are as follows: after the multifunctional working cannula is used by a clinician, if the times of replacing channels can be expected to be reduced, the operation of safely completing the operation under visualization can be ensured, and the multifunctional working cannula for the disposable sterile spine minimally invasive surgery can become one of necessary instruments for the spine minimally invasive surgery by combining a 3D printing technology, and the future income is expected to be increased in a stepped manner by 5 to 8 percent every year.
(2) The technical scheme of the invention solves the technical problem that people are eagerly to solve but can not be successfully solved all the time: the technical scheme of the invention solves the problems that the whole-process visualization cannot be realized and the nerve tissue damage is increased in the process of the current endoscope-assisted intervertebral fusion, and simultaneously, the problem that the endoscope and the channel are replaced for many times is solved. Therefore, how to provide a method for visualizing the whole course and optimizing the replacement channel is a technical problem which needs to be solved urgently in the invention patent.
Drawings
FIG. 1 is a schematic structural diagram of a working casing provided by an embodiment of the present invention;
FIG. 2 is a schematic view of an inner tube structure provided by an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an outer tube provided by an embodiment of the present invention;
FIG. 4 is a schematic diagram of a water inlet channel structure provided in an embodiment of the present invention;
FIG. 5 is a schematic view of the bottom structure of an outer tube provided in an embodiment of the present invention;
FIG. 6 is a schematic structural view of a water outlet channel provided in an embodiment of the present invention;
FIG. 7 is a schematic view of a fixing frame according to an embodiment of the present invention;
FIG. 8 is a schematic structural view of an instrument working channel and an aperture mirror channel provided by an embodiment of the present invention;
FIG. 9 is a schematic diagram of a circular channel configuration provided by an embodiment of the present invention;
FIG. 10 is a schematic diagram of a metal scale line structure according to an embodiment of the present invention;
FIG. 11 is a schematic view of a duckbilled serrated structure according to an embodiment of the present invention;
FIG. 12 is a schematic structural view of a duckbill serrated structure head according to an embodiment of the present invention;
in the figure: 1. an inner tube; 2. an outer tube; 3. an instrument working channel; 4. an aperture mirror channel; 5. a fixed mount; 6. a water inlet channel; 7. a water outlet channel; 8. a circular channel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
First, an embodiment is explained. This section is an explanatory embodiment expanding on the claims so as to fully understand how the present invention is embodied by those skilled in the art.
Inventive example 1:
a disposable sterile multifunctional working cannula for minimally invasive spine surgery is provided with an outer tube 1 and an inner tube 2, wherein the outer tube 2 and the inner tube 1 are designed in a split mode and can be detached; the inner pipe 1 is embedded in the outer pipe 2, the outer pipe 1 and the fixing frame 5 are of an integral structure, the outer pipe and the fixing frame are not detachable, the fixing frame 5 extends outwards in a flange mode, expands outwards from the pipe wall and can play a role in supporting and fixing a sleeve, and the fixing frame 5 is designed to be a U-shaped opening and is easy to clamp and clamp in cooperation with a fixing arm; the top of the outer pipe 2 is respectively provided with a water inlet channel 6 and a water outlet channel 7, and the upper end of the outer pipe 2 is provided with a fixed frame 5; the working sleeve is provided with two independent non-coaxial channels which are respectively an instrument working channel 3 and a hole mirror channel 4.
The length and the width of the instrument working channel 3 reach 18mm and 12.2mm respectively, the section is crescent, and the edge is designed in a round angle manner; the hole mirror channel 4 is 0.5mm away from the instrument working channel 3, the diameter of the cross section of the hole mirror channel is 6.5mm, and the hole mirror channel 4 is suitable for a right-angle mirror with the working outer diameter within 3.2 mm.
The wall thickness of the inner tube 1 is 0.5mm, and the length from the bottom of the inner tube 1 to the bottom of the outer tube 2 is 57.1 mm; the total length of the combination of the inner tube 1 and the outer tube 2 is 117.1 mm.
The upper half part of the outer tube 2 is made of white PC high polymer materials, and the lower half part of the outer tube 2 is made of high polymer materials such as transparent PC, transparent ABS, transparent PEEK or transparent PMMA.
The bottom of the outer tube 2 is a 30-degree inclined plane, and the outer diameter of the outer tube 2 is 20 mm; the inner diameters of the water inlet channel 6 and the water outlet channel 7 are respectively 1 mm.
The inner pipe 1 is embedded in the outer pipe 2 to form a split structure, 12 wavy salient points are arranged at the joint of the inner pipe 1 and the outer pipe 2, and the inner pipe 1 can be rotationally fixed once every 30 degrees.
The distance between the foramen mirror channel 4 and the instrument working channel 3 is 0.5mm, the diameter of the cross section is 6.5mm, and the instrument working channel 3 is suitable for most intervertebral foramen mirrors with the diameter of 6.3mm and below.
The outer tube 2 and the fixing frame 5 are of split structures, the outer tube 2 and the fixing frame 5 are connected in a threaded mode, and the fixing frame 5 extends outwards in a flange mode.
The bottom of the outer tube 2 is a duckbilled sawtooth structure, and the head of the duckbilled sawtooth structure is in a circular arc shape and is designed to be rounded.
The inner wall of the outer pipe 2 is provided with metal scale marks; a circular channel with the diameter of 2mm is arranged on the inner wall of the inner pipe 1; the borescope channel 4 is a small channel, is close to the instrument working channel 3 and is designed into a circular structure; the instrument working channel 3 is a large channel and designed to be of a fan-shaped structure, and the instrument working channel 3 is positioned at the upper part of the inner tube 1.
Inventive example 2:
as shown in fig. 1, the multifunctional working cannula for minimally invasive spinal surgery provided by the embodiment of the invention comprises an outer tube 2 and an inner tube 1. The inner tube 1 is embedded in the outer tube 2 to form a split structure, the bottom of the outer tube 2 is in a 30-degree arc design, the tissue protection effect can be achieved, and a better visual field is achieved. The length from the bottom of the inner tube 1 to the bottom of the outer tube 2 is 57.1 mm. The total length of the combination of the inner pipe 1 and the outer pipe 2 is 117.1mm, and the inner pipe 1 can be independently taken out after the outer pipe 2 is fixed. The inner tube 1 and the outer tube 2 are fixed through the wave-breaking convex points, the position of the inner tube 1 can be adjusted every 30 degrees and fixed on the outer tube, and the upper half part of the endoscope outer tube 2 is made of opaque high polymer materials, and the lower half part of the outer tube 2 is made of transparent resin, so that nerve tissues in a larger range can be observed from an endoscope or an instrument channel.
As shown in fig. 2 to 8, the inner tube 1 is divided into two independent channels, namely an instrument working channel 3 and a borescope channel 4; the instrument working channel 3 and the borescope channel 4 form a double-channel structure, the instrument working channel 3 is a large channel, is positioned in the center of the inner tube 1 and is designed into a fan-shaped structure, and the maximum length and the maximum width of the instrument working channel 3 respectively reach 17mm and 12.2 mm; the hole mirror channel 4 is a small channel, is close to the instrument working channel 3, is designed into a circular structure, and is suitable for right-angle mirrors with the working outer diameter within 3.2 mm. A water inlet passage 6 and a water outlet passage 7 are respectively arranged on two sides of the outer pipe 2, and a fixing frame 5 is arranged at the upper end of the outer pipe 2. The outer diameter of the outer pipe 2 is 20mm, and the outer pipe 2 is used for fixing a mirror and feeding in and out water; the inner diameters of the water inlet channel 6 and the water outlet channel 7 are respectively 1 mm.
And II, application embodiment. In order to prove the creativity and the technical value of the technical scheme of the invention, the part is the application example of the technical scheme of the claims on specific products or related technologies.
Inventive example 3:
the working principle of the invention is as follows: inlay the dress with inner tube 1 and arrange skin in as working channel at outer tube 2, fixed with the support of outer tube 2 again, outer tube 2 plays the tissue protection effect, and 30 arc designs in front can do benefit to observation and operation, and the apparatus passes through apparatus working channel 3, and the hole mirror carries out corresponding operation through hole mirror passageway 4, and the art person is keeping under clear and visual condition in the field of vision to less damage completion operation has better field of vision simultaneously.
In order to facilitate fixing and operation, the upper part of the outer tube 2 is provided with a fixing support 5, the fixing support 5 is a step-shaped connecting part, when in use, the fixing support 5 is firstly utilized to play a role of fixing the outer tube 1, and then the inner tube 1 is fixed on the outer tube 1 through salient points. In addition, the further improvement is that the outer pipe 2 is provided with a water inlet pipeline 6 which extends from the lower part of the bracket 5 to the bottom of the outer pipe 2, a water outlet pipeline 7 extends from the bottom of the outer pipe 2 to the upper part of the outer pipe 2, and a certain height difference exists between the water inlet and the water outlet, so that the circular flow of flushing water can be facilitated. Under the semi-closed condition, the liquid in the working sleeve keeps certain pressure, the amount of bleeding is reduced by utilizing pressure balance, and meanwhile, the blood in the operation visual field and the cut tissues can be washed away, so that the visual field of the endoscope is kept clear, an operator can observe the operation of instruments conveniently, and the operation efficiency is improved.
As shown in figure 8, the instrument working channel 3 is positioned in the center of the working sleeve, the length and the width respectively reach 18mm and 11mm, the cross section is in a crescent shape, the maximization of the instrument operating space is ensured, and meanwhile, the edge of the channel is in a circular arc shape design, so that the instrument can be prevented from being damaged;
the distance between the endoscope channel and the working channel is 0.5mm, the diameter of the cross section is 6.5mm, and the endoscope channel can be suitable for most intervertebral foramen mirrors with the diameter of 6.3mm or less.
The channel is a single-hole non-coaxial channel, can be used for observing operation by combining an endoscope under the condition that only one wound is cut according to clinical use requirements, is matched with related instruments to operate in an independent channel, and can also be matched with a spinal endoscope used under an air medium and an aqueous medium. In addition, the unique transparent high polymer material ensures visual operation in the placement process, and simultaneously, the damage to the skin can be reduced in the insertion process due to the low damping characteristic of the surface of the high polymer material. Under the whole visual operation, need not to withdraw from the scope many times and change the passageway, cooperation trepan, bone drill, pliers etc. common apparatus use, can have the good and little advantage such as wound of minimal access surgery of field of vision of open operation concurrently, can carry out the operation such as decompression, under the mirror fuse high-efficiently, the operation efficiency improves greatly than traditional scope technique.
Inventive example 4:
with the development of the spinal endoscope technology and the continuous improvement of the endoscope technology of doctors, more and more doctors hope to expand the clinical adaptation and the application range of the spinal endoscope, and the spinal endoscope technology is further applied to complex operations such as severe spinal stenosis decompression and spinal fusion. Then, the widely applied single-shaft single-channel coaxial endoscope system has the defects of small operation space, inflexible use, low treatment efficiency, easy damage to instruments and the like. The working sleeve is a single-hole double-channel split type working sleeve, can realize the operation of a single-hole double-channel non-coaxial spinal endoscope, and can also be matched with the spinal endoscope used under an air medium and an aqueous medium. Different from the traditional integrated working sleeve, the working sleeve is divided into an outer tube and an inner tube, and can be matched with related instruments to operate independently according to clinical use requirements. In addition, the unique transparent high polymer material ensures visual operation in the placement process, and simultaneously, due to the characteristic of low damping of the surface of the high polymer material, the friction and the damage to skin and tissues can be reduced, so that the transparent high polymer material has good clinical application value and is an innovative design. Under the whole visual operation, need not to withdraw from the scope many times and change the passageway, cooperation trepan, bone drill, pliers etc. common apparatus use, can have the good and little advantage such as wound of minimal access surgery of field of vision of open operation concurrently, can carry out the operation such as decompression, under the mirror fuse high-efficiently, the operation efficiency improves greatly than traditional scope technique.
Inventive example 5:
the embodiment of the invention has certain advantages compared with the prior art by theoretically analyzing:
(1) the invention provides a multifunctional working sleeve for a spinal minimally invasive surgery, which is provided with an instrument channel and an inner diameter channel, so that a doctor can observe the depth and direction of the instrument by means of an endoscope, and the risk of damaging tissues is reduced;
(2) the invention provides a multifunctional working sleeve for spinal minimally invasive surgery, wherein an outer tube plays a role in fixing and protecting and can avoid the collision of instruments and endoscopes. Meanwhile, the inner tube can be circumferentially adjusted and fixed on the outer tube, so that the operation is simpler and more convenient, and the operation time is shortened;
(3) the invention provides a multifunctional working sleeve for spinal minimally invasive surgery, wherein the lower part of an outer tube is made of transparent material, compared with the prior art, the multifunctional working sleeve enlarges the transverse and longitudinal visual fields, and a doctor has a larger visual range when operating an endoscope and a surgical instrument, so that the condition of a part can be observed more intuitively, and the surgery efficiency and the safety are improved;
(4) the invention provides a multifunctional working sleeve for spinal minimally invasive surgery, wherein water inlet and outlet channels are arranged on two sides of an outer tube to discharge blood and cut tissues, so that the function of ensuring clear visual field of an endoscope is achieved, observation in the surgery is facilitated, and the surgery time is saved.
It should be noted that the embodiments of the present invention can be realized by hardware, software, or a combination of software and hardware. The hardware portion may be implemented using dedicated logic; the software portions may be stored in a memory and executed by a suitable instruction execution system, such as a microprocessor or specially designed hardware. Those skilled in the art will appreciate that the apparatus and methods described above may be implemented using computer executable instructions and/or embodied in processor control code, such code being provided on a carrier medium such as a disk, CD-or DVD-ROM, programmable memory such as read only memory (firmware), or a data carrier such as an optical or electronic signal carrier, for example. The apparatus of the present invention and its modules may be implemented by hardware circuits such as very large scale integrated circuits or gate arrays, semiconductors such as logic chips, transistors, or programmable hardware devices such as field programmable gate arrays, programmable logic devices, or software executed by various types of processors, or a combination of hardware circuits and software, e.g., firmware.
The above description is only for the purpose of illustrating the present invention and the appended claims are not to be construed as limiting the scope of the invention, which is intended to cover all modifications, equivalents and improvements that are within the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A disposable multifunctional working cannula for sterile spinal minimally invasive surgery is characterized in that the working cannula is provided with an outer tube and an inner tube, the outer tube and the inner tube are designed in a split mode, and the outer tube and the inner tube can be detached;
the inner pipe is embedded in the outer pipe, the outer pipe and the fixing frame are of an integral structure and cannot be detached, and the fixing frame extends outwards in a flange mode and expands outwards from the pipe wall;
the fixing frame is designed to be a U-shaped opening;
the top of the outer pipe is respectively provided with a water inlet channel and a water outlet channel, and the upper end of the outer pipe is provided with a fixing frame;
the working sleeve is provided with two independent non-coaxial channels which are respectively an instrument working channel and a borescope channel.
2. The multifunctional working cannula for the disposable sterile spine minimally invasive surgery as recited in claim 1, wherein the length and the width of the working channel of the instrument respectively reach 18mm and 12.2mm, the cross section is crescent-shaped, and the edge is designed with round corners;
the hole mirror channel is 0.5mm away from the instrument working channel, the diameter of the cross section of the hole mirror channel is 6.5mm, and the hole mirror channel is suitable for right-angle mirrors with the working outer diameter within 3.2 mm.
3. The multifunctional working cannula for the disposable sterile spinal minimally invasive surgery as recited in claim 1, wherein the wall thickness of the inner tube is 0.5mm, and the length from the bottom of the inner tube to the bottom of the outer tube 2 is 57.1 mm; the total length of the inner tube and outer tube combination is 117.1 mm.
4. The multifunctional working cannula for the disposable sterile minimally invasive spine surgery as recited in claim 1, wherein the upper half part of the outer tube is made of white PC polymer material, and the lower half part of the outer tube is made of polymer material such as transparent PC, transparent ABS, transparent PEEK, transparent PMMA and the like.
5. The disposable multifunctional working cannula for sterile spinal minimally invasive surgery according to claim 1, wherein the bottom of the outer tube is a 30 ° bevel, and the outer diameter of the outer tube is 20 mm; the inner diameters of the water inlet channel and the water outlet channel are respectively 1 mm.
6. The disposable multifunctional working cannula for sterile spinal minimally invasive surgery as recited in claim 1, wherein the inner tube is embedded inside the outer tube to form a split structure, the joint of the inner tube and the outer tube is provided with 12 wave-shaped convex points, and the inner tube can be fixed by rotating every 30 degrees.
7. The disposable multifunctional working cannula for sterile spinal minimally invasive surgery as recited in claim 1, wherein the aperture mirror channel is spaced 0.5mm from the instrument working channel, the cross-sectional diameter is 6.5mm, and the instrument working channel is suitable for most intervertebral foramen mirrors with the diameter of 6.3mm and below.
8. The disposable multifunctional working cannula for sterile spinal minimally invasive surgery according to claim 1, wherein the outer tube and the fixing frame are of a split structure, the outer tube and the fixing frame are connected in a threaded manner, and the fixing frame extends outwards in a flange manner.
9. The multifunctional working cannula for the disposable sterile minimally invasive spine surgery as recited in claim 1, wherein the bottom of the outer tube is a duckbilled serrated structure, and the head of the duckbilled serrated structure is in a circular arc shape and is designed to be rounded.
10. The disposable multifunctional working cannula for the sterile spinal minimally invasive surgery as recited in claim 1, wherein the inner wall of the outer tube is provided with metal scale marks; a circular channel with the diameter of 2mm is arranged on the inner wall of the inner pipe; the borescope channel is a small channel, is close to the instrument working channel and is designed into a circular structure; the instrument working channel is a large channel and is designed in a fan-shaped structure, and the instrument working channel is positioned at the upper part of the inner tube.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210754663.7A CN115005899A (en) | 2022-06-30 | 2022-06-30 | Disposable aseptic backbone is multi-functional working sleeve pipe for minimal access surgery |
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| CN202210754663.7A CN115005899A (en) | 2022-06-30 | 2022-06-30 | Disposable aseptic backbone is multi-functional working sleeve pipe for minimal access surgery |
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