CN111643154A - Ureteroscope sheath external member - Google Patents
Ureteroscope sheath external member Download PDFInfo
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- CN111643154A CN111643154A CN202010722502.0A CN202010722502A CN111643154A CN 111643154 A CN111643154 A CN 111643154A CN 202010722502 A CN202010722502 A CN 202010722502A CN 111643154 A CN111643154 A CN 111643154A
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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
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/005—Flexible endoscopes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/012—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor
- A61B1/015—Control of fluid supply or evacuation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/307—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the urinary organs, e.g. urethroscopes, cystoscopes
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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
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22072—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with an instrument channel, e.g. for replacing one instrument by the other
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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
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22079—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with suction of debris
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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
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22082—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for after introduction of a substance
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2217/00—General characteristics of surgical instruments
- A61B2217/002—Auxiliary appliance
- A61B2217/005—Auxiliary appliance with suction drainage system
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2217/00—General characteristics of surgical instruments
- A61B2217/002—Auxiliary appliance
- A61B2217/007—Auxiliary appliance with irrigation system
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Abstract
The invention discloses a ureteroscope sheath kit which comprises an outer sheath body, wherein a sheath endoscope can be arranged in the outer sheath body in an in-and-out combined mode, the sheath endoscope is provided with a working channel, a lithotripsy device and/or flushing water can enter the working channel, and a cavity gap is formed between the outer wall of the sheath endoscope and the inner wall of the outer sheath body to form a negative pressure suction channel.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a ureteroscope sheath kit.
Background
Renal calculus (renal calculi) is caused by abnormal accumulation of some crystalline substances (such as calcium, oxalic acid, uric acid, cystine and the like) and organic matrixes (such as matrix A, acidic mucopolysaccharide and the like) in the kidney, is a common disease and frequently encountered disease of the urinary system, and 90 percent of the renal calculus contains calcium, wherein calcium oxalate calculus is the most common. If kidney stones cannot be properly treated, inflammation infection is easy to cause, and serious patients can suffer hydronephrosis, uremia and even canceration; the kidney stones are mostly located in the renal pelvis or renal calyx when formed, and can be discharged into the ureter and the bladder, and almost all the ureter stones come from the kidney, so that if the kidney stones cannot be treated in time, the kidney stones can also cause the pathological changes of other organs.
Currently, there are several treatment modalities for kidney stones:
1. physically removing stones from a large amount of drinking water; this approach is only applicable to smaller stones, but not to larger ones.
2. Extracorporeal shock wave lithotripsy; the method crushes the kidney stones through the shock waves of the external stone crusher, is only suitable for patients with smaller and soft stones, and has the main complications of renal hemorrhage and infection.
3. Traditional open surgical treatment; in this way, according to the renal calculus condition of a patient, the kidney is incised to take stones or is partially/completely resected; this surgical procedure is traumatic, has a high rate of stone residue, is slow to recover after surgery, and may cause various complications.
4. Taking out stone through a percutaneous nephroscope; the method needs to puncture and punch a hole from the skin of the waist to establish a channel, directly rubs and extracts the kidney stones, is the main method for treating the stones with the length of more than 2cm at present, has obvious improvement compared with the traditional open surgery, but still causes wounds to the human body, and has high incidence rate of serious complications such as renal hemorrhage, infectious shock and the like.
5. Treating by minimally invasive surgery; the mode is mainly that a ureter soft lens enters the ureter and the renal pelvis through the urethra, and the soft lens breaks stones; after the calculus is crushed, the crushed calculus and debris are sucked out through a single tube under negative pressure, and the method is a main method for treating the calculus with the length of less than 2 cm. The method has poor effect when used for treating stones with the length of more than 2cm, and the reasons are as follows: the negative pressure suction pipe is easy to block when the existing single-pipe negative pressure suction way sucks the broken stone through negative pressure, the time spent when the broken stone is sucked is long, the broken stone and blood clots can not be effectively sucked out, the visual field of the operation is further influenced, the original calculus can not be found, the operation can only be stopped, and the continuity of the operation can not be ensured. If the treatment is continued, only the second-stage and third-stage operations, even percutaneous nephrolithotomy, can be selected.
The inventor finds that the existing endoscope sheath only can break the stones firstly and then flush the water to perform negative pressure suction, and the mode is inconvenient to operate, long in time consumption and not beneficial to sucking out the broken stones; and when the existing endoscope sheath carries out negative pressure suction on stone chippings after kidney stone (more than 2 cm) lithotripsy, the negative pressure suction pipe is easy to block, and the broken stones can not be quickly and effectively sucked out due to the scattered broken stone positions, so that a plurality of operations are required, and the physical burden and the economic burden of a patient are increased undoubtedly.
Disclosure of Invention
In order to overcome the deficiencies of the prior art, the present invention provides a ureteroscope sheath set; the working channel can be used for the entry of stone breaking equipment and flushing water, and a negative pressure suction channel is formed in the gap between the sheath endoscope and the outer sheath body, so that stone can be sucked while stone breaking is carried out, the operation can be carried out quickly, and the stone breaking can be sucked more conveniently.
Further, the invention adopts the following technical scheme:
a ureteroscope sheath kit comprises an outer sheath body, wherein the sheath endoscope can be arranged in the outer sheath body in an in-and-out combined mode, the sheath endoscope is provided with a working channel, a lithotripsy device and/or flushing water can enter the working channel, and a cavity gap is formed between the outer wall of the sheath endoscope and the inner wall of the outer sheath body to form a negative pressure suction channel.
As a further technical scheme, when the sheath endoscope is arranged in the outer sheath body, the sheath endoscope is tightly attached to the inner side wall of the outer sheath body.
The sheath endoscope is arranged on the inner side wall of the outer sheath body in a clinging manner, so that the displacement of the sheath endoscope due to attraction in the lavage process can be avoided, and the gap between the outer sheath body and the sheath endoscope is reduced, thereby influencing the suction effect of the calculus and crushed stone.
As a further technical scheme, the sheath endoscope comprises a first tube wall and a second tube wall which are connected into a whole; the cross section of the first pipe wall is arc-shaped, and the cross section of the second pipe wall is linear, fold line-shaped or curved.
As a further technical scheme, the first tube wall is attached to the inner wall of the sheath body, and the joint of the first tube wall and the second tube wall is abutted to the inner wall of the sheath body.
As a further technical scheme, the cross section of the sheath endoscope is in a crescent shape or an arc shape or an oblate shape or a half moon shape.
As a further technical scheme, the outer sheath body is a hollow pipeline and is provided with a sheath endoscope inlet for a sheath endoscope to enter; the sheath endoscope is also provided with a camera module and a light source module.
As a further technical scheme, the working part of the sheath endoscope extends out of the working part of the outer sheath body by a set length, and the part of the sheath endoscope extending out of the outer sheath body can be bent.
As a further technical scheme, the sheath endoscope can rotate for 360 degrees and clings to the inner wall of the outer sheath body when rotating.
As a further technical scheme, the end part of the handheld part of the outer sheath body is provided with a sleeve part, the sleeve part is connected with a rotary connector, the rotary connector can rotate for 360 degrees, and the rotary connector is connected with a sheath endoscope.
According to the ureteroscope sheath kit, the sheath endoscope is connected with the outer sheath body through the rotary connector and the sleeve piece, and when stones are cleared, the sheath endoscope can be driven to synchronously rotate by rotating the rotary connector, so that complex eddy current is formed in a flushing fluid in the sheath endoscope, the flushing effect on the broken stones in the kidney is better, and the broken stones can be flushed out quickly.
As a further technical scheme, a negative pressure suction port is formed in the handheld portion of the outer sheath body and communicated with a negative pressure suction pump, a working channel opening communicated with a working channel is formed in the handheld portion of the sheath endoscope, and the working channel opening is communicated with a perfusion flushing pump.
As a further technical scheme, a negative pressure adjusting port is further arranged on the handheld part of the outer sheath body.
As a further technical scheme, the handheld part of the outer sheath body is connected with an external member, the external member is a multi-way pipeline, and the handheld part or the external member of the outer sheath body is provided with a negative pressure suction port.
As a further technical scheme, a negative pressure adjusting port is further arranged on the handheld part of the outer sheath body or the external sleeve.
As a further technical scheme, the external sleeve is provided with a wide-diameter part, and the inner diameter of the wide-diameter part is larger than that of the external sheath body. When the external sleeve is provided with the negative pressure suction port, the negative pressure suction port is arranged on the wide-diameter part. When the external sleeve is provided with the negative pressure adjusting port, the negative pressure adjusting port is arranged on the wide-diameter part.
As a further technical scheme, the handheld part of the outer sheath body is provided with a wide-diameter part, and the inner diameter of the wide-diameter part is larger than that of the outer sheath body.
As a further technical solution, the wide diameter portion is provided with a negative pressure suction port.
As a further technical scheme, the wide-diameter part is also provided with a negative pressure adjusting port.
As a further technical scheme, the wide-diameter part is connected with an external member, the external member is a multi-way pipeline, and the wide-diameter part or the external member is provided with a negative pressure suction port.
As a further technical scheme, the wide-diameter part or the external sleeve part is also provided with a negative pressure adjusting port.
Compared with the prior art, the invention has the beneficial effects that:
according to the ureteroscope sheath kit, the working channel can be used for the entry of the calculus crushing equipment and washing water, the gap between the sheath endoscope and the outer sheath body forms the negative pressure suction channel, and water inlet and negative pressure suction are performed simultaneously when calculus crushing is performed by the calculus crushing equipment, so that calculus can be sucked while the calculus is crushed, the operation can be rapidly performed, and the calculus can be sucked more conveniently.
According to the ureteroscope sheath kit, the sheath endoscope can rotate by 360 degrees, and when the intrarenal calculus and the like are washed, the calculus and the calculus at each position in the kidney can be washed, so that the washing area of washing liquid is increased, and the calculus cleaning effect is improved. When the sheath endoscope rotates for 360 degrees, the sheath endoscope has the functions of grinding and eliminating incarceration of the detritus embedded in the outer sheath body cavity, and the negative pressure suction effect is obviously improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a schematic view of a ureteroscope sheath kit of the present invention;
FIG. 2 is a schematic view of a ureteroscope sheath assembly of the present invention provided with a rotational connector;
FIG. 3 is a schematic view of a sleeve member;
FIG. 4 is a schematic view of the side-spraying sheath endoscope and the rotary connector;
FIG. 5 is a schematic view of the direct injection type sheath endoscope and the rotary connector;
FIG. 6 is a cross-sectional view of the sheath endoscope and the outer sheath body in accordance with the preferred embodiment of the present invention;
FIG. 7 is a cross-sectional view of the sheath endoscope with a linear second tube wall cooperating with the outer sheath;
FIG. 8 is a cross-sectional view of the sheath endoscope with a second tube wall in a zigzag shape in cooperation with the outer sheath body;
FIG. 9 is a cross-sectional view of the sheath endoscope with a second curved wall cooperating with the outer sheath;
FIG. 10 is a cross-sectional view of the sheath endoscope with pressure measurement channel in combination with the outer sheath body according to the present invention;
FIG. 11 is a schematic view of the ureteroscope sheath assembly of the present invention with the external sleeve engaged;
FIG. 12 is a schematic view of a ureteroscope sheath assembly of the present invention with a wide diameter portion in the extension assembly;
FIG. 13 is a schematic view of the handle portion of the ureteroscope sheath assembly of the present invention with a wide diameter portion;
FIG. 14 is a schematic view of the ureteroscope sheath assembly of the present invention with an external sleeve at the wide portion;
in the figure, 1 outer sheath body, 2 sheath endoscopes, 3 negative pressure suction ports, 4 working parts of sheath endoscopes, 5 first tube walls, 6 second tube walls, 7 sleeve parts, 8 working channels, 9 pressure measurement channels, 10 wide-diameter parts, 11 rotating connectors, 12 water outlets, 13 columnar structures, 14 connecting rods, 15 clamping rods, 16 clamping blocks, 17 clamping grooves, 18 endoscope inlet ports, 19 negative pressure adjusting ports, 20 external parts, 21 camera modules, 22 light source modules, 23 working channel openings and 24 cavities.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
For convenience of description, the words "up", "down", "left" and "right" in the present invention, if any, merely indicate correspondence with up, down, left and right directions of the drawings themselves, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, rather than indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
The noun explains:
incarceration, a medical term, means seizure.
As described in the background, the inventor has found that the prior art is not sufficient, and in order to solve the above technical problems, the present application proposes a ureteroscope sheath set.
The sheath kit disclosed in this embodiment will be further described with reference to the accompanying drawings;
as shown in fig. 1, a ureteroscope sheath kit comprises an external sheath 1, the external sheath 1 is operated by a natural duct of a human body to realize a non-invasive operation, and a sheath endoscope 2 can be arranged in the external sheath 1 in an in-and-out combined manner.
The sheath body 1 is a hollow pipeline, the handheld part of the sheath body is provided with a sheath endoscope inlet 18 for a sheath endoscope to enter, and a negative pressure suction port 3, the negative pressure suction port 3 can be obliquely arranged, and the negative pressure suction port 3 is communicated with a negative pressure suction pump.
The sheath endoscope 2 is provided with a working channel 8, the working channel can be used for the entry of a lithotripsy device and/or the entry of flushing water, and the lithotripsy device and the water inlet work simultaneously; when one working channel is arranged, the stone breaking equipment and the water inlet can share one channel, and when a plurality of working channels are arranged, the stone breaking equipment and the water inlet can be separated from each other and enter from different working channels. The lithotripsy apparatus may access the kidney for lithotripsy via the working channel. The stone breaking equipment can adopt equipment for breaking stones in modes of laser, ultrasound, trajectory and the like, and can be selected according to needs.
The handheld part of the sheath endoscope 2 is provided with a working channel opening 23 communicated with the working channel 8, and the working channel opening 23 is communicated with a perfusion washing pump. The working channel opening 23 can be arranged at the side of the sheath endoscope hand-held part and also at the end of the sheath endoscope hand-held part.
For stones with the internal diameter of the kidney larger than 2cm, the main reason that the ureter soft lens calculus breaking method cannot be adopted in the prior art is that the intra-renal calculus and blood clots are mixed in the kidney to cause unclear operation visual field, and the endoscope sheath kit can efficiently clear the calculus and the blood clots and can solve the problem of unclear visual field in the operation process.
The outer sheath body enters the kidney from a natural pipeline ureter of a human body, an instrument for carrying out intrarenal calculus stone breaking operation enters the kidney from the sheath endoscope to carry out stone breaking operation, meanwhile, flushing liquid is filled in the sheath endoscope, negative pressure suction is carried out by the outer sheath body, intrarenal blood clots and stones are sucked out, the effect of stone suction while stone breaking is achieved, other auxiliary technologies are not needed when the sheath endoscope is guided into the outer sheath body, operation is simple, and operation time can be shortened. Therefore, other operations such as tapping on the body of a patient are not needed, noninvasive surgery can be really realized, the pain of the patient is relieved, and the patient can recover in a short time.
The sheath endoscope 2 is further provided with a camera module 21 and a light source module 22 for providing a light source and observing the intraoperative environment, and the sheath endoscope can be provided with a corresponding camera channel and a corresponding light source channel, which are the prior art and are not described herein again. The sheath endoscope has the following functions: real-time observation, water injection, stone breaking and intracavity operation.
A cavity 24 is arranged between the outer wall of the sheath endoscope 2 and the inner wall of the outer sheath body 1 to form a negative pressure suction channel; therefore, flushing liquid enters through the sheath endoscope working channel and flows out from a cavity gap between the sheath endoscope and the outer sheath body, when the lithotripsy equipment works to lithotripsy, the flushing liquid is filled inwards by the sheath endoscope, negative pressure suction is performed outwards by the outer sheath body, the outer sheath body and the sheath endoscope form a sheath combined system which continuously fills lithotripsy and negative pressure suction is performed inwards by the outer sheath body while lithotripsy, foreign matters such as lithotripsy in the operation, blood clots and the like are taken out, the visual field under the endoscope is clear, liquid and the like can be circulated, the lithotripsy can be performed quickly and efficiently, the lithotripsy and the like are sucked out, the visual field under the endoscope is clear, and blockage of a suction tube cannot be caused. The invention adopts the forms of flushing and sucking while crushing stone and double-pipe negative pressure to carry out lavage and suction, the suction pipeline is not easy to be blocked, the nephrolithotomy can be effectively sucked and cleaned out when the vision is unclear or a large stone is operated in the operation, the continuity of the operation can be ensured, the operation can be finished at one time without moving the knife again.
The working part of the sheath body 1 is one end which can extend into the kidney for operation, and the other end is a non-working end which is a handheld part and is used for the operation of a doctor; the sheath endoscope working part and the hand-held part are defined as the outer sheath body working part and the hand-held part.
When the sheath endoscope 2 is arranged in the sheath body 1, the sheath endoscope 2 is closely attached to the inner side wall of the sheath body 1. The sheath endoscope is arranged on the inner side wall of the outer sheath body in a clinging manner, so that the displacement of the sheath endoscope due to attraction in the lavage process can be avoided, and the gap between the outer sheath body and the sheath endoscope is reduced, thereby influencing the suction effect of the calculus and crushed stone.
In this embodiment, the negative pressure suction port 3 can be disposed at the side of the handheld portion of the sheath body 1 and opposite to the sheath endoscope 2, i.e. the negative pressure suction port and the sheath endoscope are disposed at two sides of the sheath body opposite to each other, so as to avoid blocking the normal operation of negative pressure suction.
The working part of the sheath endoscope can be flush with the working part of the outer sheath body, the working part of the sheath endoscope can extend out of the working part of the outer sheath body by a set length, and the length of the sheath endoscope extending out of the outer sheath body can be adjusted by advancing and retreating the sheath endoscope as required; the part of stretching out the outer sheath body with the sheath endoscope sets up to the flexible, can get into through outer sheath body handheld portion at the sheath endoscope from this, when stretching out by the working part, the sheath endoscope flexible to the position that needs the rubble, and the rubble effect is better. In this embodiment, the working portion of the sheath endoscope is extended by about 0.5cm from the outer sheath body. The working part 4 of the sheath endoscope is arranged to extend out of the working part of the outer sheath body 1 by a set length, so that the flushing liquid can be prevented from flowing into the gap between the sheath endoscope and the outer sheath body directly at the working part of the sheath endoscope after flowing into the sheath endoscope from a perfusion flushing pump; the sheath endoscope working part extends out of the outer sheath body working part, so that the flushing liquid flows into the kidney after flowing out of the sheath endoscope working part, and the liquid flows out of the gap between the sheath endoscope and the outer sheath body when the negative pressure suction works, thereby prolonging the flowing path of the flushing liquid and ensuring the flushing effect.
The hand-held part of the sheath body 1 can also be provided with a negative pressure adjusting port 19; an adjusting knob can be arranged at the negative pressure adjusting port 19 so as to control the magnitude of the negative pressure. In the process of sucking the crushed stone by negative pressure, if the crushed stone is too large, the crushed stone can be blocked at the end of the working end of the outer sheath body, so that the effective suction of the crushed stone is influenced, and the negative pressure regulating port is blocked when the negative pressure suction is needed by arranging the negative pressure regulating port; when the port of the working part of the sheath body is blocked by the broken stone, the blocking of the negative pressure adjusting port is cancelled or positive pressure is introduced from the negative pressure adjusting port inwards, so that the negative pressure in the sheath body is adjusted, the broken stone can be separated from the port of the working part of the sheath body, the smoothness of the sheath body is recovered, and the broken stone suction is continued.
The sheath endoscope 2 comprises a first tube wall 5 and a second tube wall 6, and the first tube wall 5 and the second tube wall 6 are connected into a whole. The cross section of the first pipe wall 5 is arc-shaped, and the cross section of the second pipe wall 6 is linear, as shown in fig. 7; or the cross section of the second tube wall 6 is a dogleg shape, as shown in fig. 8; or the cross section of the second pipe wall 6 is curved, and can be arranged into an arc shape, an oblate-like shape or an arc-like shape as shown in fig. 9; when the shape is a zigzag shape or a curved shape, the specific shape can be set as required. The cross-sections of the first 5 and second 6 vessel walls are cross-sections along the radial direction of the sheath endoscope.
The first pipe wall 5 is attached to the inner wall of the outer sheath body 1, the joint of the first pipe wall 5 and the second pipe wall 6 supports against the inner wall of the outer sheath body 1, the outer side wall of the first pipe wall 5 is attached to the inner wall of the outer sheath body, the arc diameter of the first pipe wall 5 is slightly smaller than the inner diameter of the outer sheath body, the arc diameter of the first pipe wall 5 is closer to the inner diameter of the outer sheath body, and the inner diameter is better, so that the whole sheath endoscope is attached to the inner wall of the outer sheath body.
When the second duct wall 6 is also arranged in an arc, as shown in fig. 6, the curvature of the first duct wall 5 is larger than the curvature of the second duct wall 6.
The cross-sectional shape of the sheath endoscope 2 may be any shape such as a circular shape, and as a preferred embodiment of the present invention, as shown in fig. 6, the cross-sectional shape of the sheath endoscope 2 is formed in a crescent shape.
The cross section of the sheath endoscope is arranged to be crescent, the maximum pipe diameter of the sheath endoscope is approximately equal to the inner diameter of the outer sheath body, the sheath endoscope can be better attached to one side of the outer sheath body when entering the inner part of the outer sheath body, and two ends of the sheath endoscope can abut against the side wall of the outer sheath body; especially when the external diameter of the sheath endoscope is approximately equal to the internal diameter of the outer sheath body, the sheath endoscope is ensured to be clung to the inner wall of the outer sheath body, and the effective negative pressure suction channel area can be maximized.
The cross section of the sheath endoscope can also be in a circular arc shape, an oblate shape or a half moon shape. In this case, the relative rigidity of the material of the sheath endoscope is a factor for ensuring the close contact of the sheath endoscope with the inner wall of the sheath body.
In the present embodiment, as shown in fig. 5, the side of the sheath endoscope 2 is closed, and a water outlet is provided at the working end of the sheath endoscope 2 to form a direct injection type;
in other embodiments, as shown in fig. 4, a water outlet 12 can be arranged at the side of the working part 4 of the sheath endoscope, so that the side-spraying type is formed; the two forms provide different intrarenal vortex effects due to the difference of the water outlet angles;
when the sheath endoscope is used specifically, the sheath endoscopes in two forms can be replaced for use, and the stone clearing effect can be improved.
When the side part of the working part of the sheath endoscope 2 is provided with a water outlet, the water outlet 12 of the sheath endoscope 2 is arranged at the outer side part of the first tube wall 5.
In a preferred embodiment, the sheath endoscope can rotate 360 degrees and is tightly attached to the inner wall of the outer sheath body when rotating; when the negative pressure suction is carried out on the intrarenal calculus, the situation that the crushed stone is embedded between the sheath endoscope and the outer sheath body can occur, because the sheath endoscope can rotate by 360 degrees in the scheme of the invention, the matching part of the sheath endoscope and the outer sheath body has the functions of grinding and eliminating the embedding on the crushed stone embedded in the outer sheath body cavity in the rotating process, and the negative pressure suction effect is obviously improved. When the sheath endoscope rotates, the sheath endoscope is tightly attached to the inner wall of the outer sheath body, so that the sheath endoscope can be prevented from shaking, and the area of a negative pressure suction channel is further influenced.
The sheath endoscope can be rotated directly by rotating the sheath endoscope, and the sheath endoscope is made of hard materials; also can realize through the mode that sets up the swivelling joint head: set up casing spare 7 at the handheld portion tip of sheath body, with handheld portion tip of sheath body and casing spare 7 fixed connection, casing spare 7 and the handheld portion tip accessible screw thread fastening connection of sheath body, also set up the external screw thread at the handheld portion tip of sheath body, casing spare 7 sets up the internal thread, casing spare cover in the handheld portion tip of sheath body and rather than through threaded connection. The sleeve member 7 is sealingly connected to the sheath body handle, i.e. a sealing gasket is provided between the interior of the sleeve member 7 and the sheath body handle. Casing spare 7 is connected with swivelling joint head 11, and swivelling joint head 11 can 360 rotations, and swivelling joint head 11 is connected with sheath scope 2, when rotating the washing to rubble in the kidney, is favorable to washing the calculus rubble of each position in the kidney, improves rubble clearance effect. Drive sheath scope synchronous rotation through rotating swivelling joint head, and then form changeable, complicated vortex after making in the sheath scope washing liquid flow out, it is better to the washing effect of rubble in the kidney, can attract rubble etc. and go out by high efficiency, can not cause to attract the pipe to block up, and the visual field under the assurance mirror is clear.
When the rotary connector and the sleeve piece are arranged, the working part of the sheath endoscope can be flush with the working part of the outer sheath body, and the length of the sheath endoscope extending out of the outer sheath body can also be fixed through the rotary connector and the sleeve piece.
The rotary connector 11 is provided with a through hole, and the sheath endoscope 2 passes through the through hole and is fixedly connected with the rotary connector 11; the through hole is eccentrically arranged on the rotary connector 11, and the sheath endoscope 2 is tightly attached to the inner side wall of the sheath body 1 when the rotary connector 11 is connected with the sleeve member 7. Therefore, the cross section of the suction channel between the outer sheath body and the sheath endoscope is maximized, and the efficiency of sucking out foreign matters such as calculi, blood clots and the like is improved.
In the present embodiment, the sheath endoscope 2 and the rotary connector 11 are configured as an integral structure.
As shown in fig. 3, the sleeve member 7 is a hollow structure, and a circumferential slot 17 is arranged on the periphery of the sleeve member 7;
as shown in fig. 4, the rotary connector 11 includes a pillar structure 13, and the pillar structure 13 extends into the sleeve member 7; both sides all are connected with connecting rod 14 in the middle part of columnar structure 13, and connecting rod 14 tip is connected with supporting rod 15, and connecting rod 14 is perpendicular with columnar structure 13 axis, and supporting rod 15 is parallel with columnar structure 13 axis, and the clearance between two supporting rods 15 is roughly the same with casing spare external diameter.
The clamping rod 15 is provided with a clamping block 16 towards the inner side of the end part of the sleeve member 7, and when the rotary connector 11 is connected with the sleeve member 7, the clamping block 16 is clamped in the clamping groove 17 and the clamping block 16 can rotate along the clamping groove 17.
In this embodiment, the columnar structure 13, the connecting rod 14, and the clamping rod 15 are integrally formed.
When the device is used, one end of the clamping rod 15, which is not provided with the fixture block 16, is pinched, the end of the clamping rod 15, which is provided with the fixture block 16, is tilted, the rotary connector 11 is moved to be matched with the casing member 7, then the clamping rod 15 is loosened, the fixture block 16 of the clamping rod 15 is clamped in the clamping groove 17, and the fixing of the rotary connector 11 and the casing member 7 is completed; when the gravels are washed, the rotary connector 11 is rotated to drive the sheath endoscope 2 to rotate, so that the washing liquid flowing out of the sheath endoscope 2 forms a vortex.
According to the endoscope sheath kit, the sheath endoscope is filled with the washing liquid, the negative pressure suction port arranged on the outer sheath body is used for negative pressure suction, the water outlet is arranged at the side part or the end part of the sheath endoscope, the washing liquid flows out from the working part of the sheath endoscope and then flows into the kidney, the liquid flows out from the cavity gap between the sheath endoscope and the outer sheath body during the negative pressure suction, the flowing path of the washing liquid is further prolonged, the effective washing area of the washing liquid is increased, and the success rate of taking out foreign matters such as calculus and blood clot in the operation is improved.
In another preferred embodiment, as shown in fig. 11, the hand-held portion of the sheath 1 is connected to the external connection set 20, and the end of the hand-held portion is connected to the external connection set. The external sleeve is a multi-way pipeline, and the end parts of the multi-way pipeline and the outer sheath body can be fastened and connected through threads. When setting up external member, can set up the negative pressure suction port in the handheld portion or external member of the sheath body, also can set up the negative pressure regulation mouth in the handheld portion or external member of the sheath body, also promptly: when only the negative pressure suction port is arranged, the external sleeve piece can be arranged into a two-way pipeline, the negative pressure suction port is arranged on the handheld part of the external sheath body, the port of the handheld end of the external sheath body forms a connecting port to be connected with the external sleeve piece, one pipe port of the external sleeve piece is connected with the handheld part of the external sheath body, and the other pipe port can be used as an endoscope inlet for a sheath endoscope to enter; when only the negative pressure suction port is arranged, the external sleeve piece can be also arranged into a three-way pipeline, the negative pressure suction port is arranged in the external sleeve piece, one pipe intersection of the three-way pipeline is communicated with the end part of the outer sheath body hand-held end, the other pipe intersection is used as the negative pressure suction port for negative pressure suction, and the other pipe intersection is used as the endoscope inlet port for the sheath endoscope to enter; when the negative pressure suction port and the negative pressure adjusting port are arranged, the external sleeve piece can be arranged into a two-way pipeline, the negative pressure suction port and the negative pressure adjusting port are simultaneously arranged on the handheld part of the external sheath body, the handheld port of the external sheath body forms a connecting port to be connected with the external sleeve piece, one pipe port of the external sleeve piece is connected with the handheld part of the external sheath body, and the other pipe port can be used as an endoscope inlet for a sheath endoscope to enter; when the negative pressure suction port and the negative pressure adjusting port are arranged, the external sleeve can be also arranged into a three-way pipeline, one of the negative pressure suction port and the negative pressure adjusting port is arranged in the external sleeve, the other of the negative pressure suction port and the negative pressure adjusting port is arranged in the handheld part of the outer sheath body, one pipe port of the three-way pipeline is communicated with the end part of the handheld part of the outer sheath body, the other pipe port is used as the negative pressure suction port or the negative pressure adjusting port, and one pipe port is used as a scope entrance port for a sheath scope to enter; when the negative pressure suction port and the negative pressure adjusting port are arranged, the external sleeve piece can also be arranged into a four-way pipeline, the negative pressure suction port and the negative pressure adjusting port are simultaneously arranged in the external sleeve piece, the hand-held port of the external sleeve piece forms a connecting port to be connected with the external sleeve piece, one pipe port of the external sleeve piece is connected with the hand-held part of the external sleeve piece, the other pipe port is used as the negative pressure suction port to carry out negative pressure suction, the other pipe port is used as the negative pressure adjusting port to carry out negative pressure adjustment, and the other pipe port can be used as an endoscope inlet to allow an endoscope to enter.
In a preferred embodiment, as shown in fig. 12, a wide diameter portion is provided in the external sleeve, the wide diameter portion is in the form of a tube, and the inner diameter of the wide diameter portion is larger than that of the external sheath; when external member set up wide-diameter portion, can set up negative pressure suction port and/or negative pressure regulation mouth in wide-diameter portion, also promptly: in the above description, the negative pressure suction port is provided in the wide diameter portion when the negative pressure suction port is provided in the external fitting, and the negative pressure adjustment port is provided in the wide diameter portion when the negative pressure adjustment port is provided in the external fitting.
In a preferred embodiment, as shown in fig. 13, the hand-held portion of the sheath 1 is provided with a wide portion 10, which is in the form of a tube, the inner diameter of the wide portion being larger than the inner diameter of the sheath; the wide-diameter part can be an equal-diameter pipeline (not shown in the figure) or a reducing pipeline (as shown in figure 13), wherein the reducing pipeline is provided with a section of equal-diameter channel section from the end part of the handheld part of the outer sheath body to the working part and then is provided with a section of channel section with gradually reduced pipe diameter, namely, the size of the end part of the handheld part of the outer sheath body is larger than that of the end part of the working part.
According to the sheath kit, the sheath endoscope can rotate 360 degrees, when the intrarenal calculus is lavaged and sucked, the sheath endoscope can rotate to the negative pressure suction port of the outer sheath body, the diameter of the handheld part of the outer sheath body can be enlarged due to the arrangement of the wide-diameter part, and the sheath endoscope cannot block the negative pressure suction port, so that the calculus can be continuously and reliably sucked out.
In a further aspect, when the negative pressure suction port is provided, the negative pressure suction port is provided in the wide diameter portion.
In a further technical scheme, when the negative pressure adjusting port is arranged, the negative pressure adjusting port is arranged on the wide-diameter part.
In a preferred embodiment, as shown in fig. 14, when the wide-diameter portion is provided, the external connection member 20 may be provided on the wide-diameter portion, and specifically, when the wide-diameter portion is connected, the port of the wide-diameter portion may be connected to the external connection member, or the external connection member may be connected to the side portion of the wide-diameter portion. The external sleeve is a multi-way pipeline, and the end parts of the multi-way pipeline and the outer sheath body can be fastened and connected through threads. When wide-diameter portion set up external member, can set up the negative pressure suction port in wide-diameter portion or external member, also can set up the negative pressure regulation mouth in wide-diameter portion or external member, promptly: when only the negative pressure suction port is arranged, the external sleeve piece can be arranged into a two-way pipeline, the negative pressure suction port is arranged on the wide-diameter part, a port of the wide-diameter part forms a connecting port to be connected with the external sleeve piece, one pipe port of the external sleeve piece is connected with the wide-diameter part, and the other pipe port can be used as a sheath endoscope inlet; when only the negative pressure suction port is arranged, the external sleeve piece can also be arranged into a three-way pipeline, the negative pressure suction port is arranged in the external sleeve piece, one pipeline port of the three-way pipeline is communicated with the end part of the wide-diameter part, the other pipeline port is used as the negative pressure suction port to carry out negative pressure suction, and the other pipeline port is used as a sheath endoscope inlet port for a sheath endoscope to enter; when the negative pressure suction port and the negative pressure adjusting port are arranged, the external sleeve piece can be arranged into a two-way pipeline, the negative pressure suction port and the negative pressure adjusting port are simultaneously arranged on the wide-diameter part, a port of the wide-diameter part forms a connecting port to be connected with the external sleeve piece, one pipe port of the external sleeve piece is connected with the wide-diameter part, and the other pipe port can be used as an endoscope inlet for a sheath endoscope to enter; when the negative pressure suction port and the negative pressure adjusting port are arranged, the external sleeve can also be arranged into a three-way pipeline, one of the negative pressure suction port and the negative pressure adjusting port is arranged in the external sleeve, the other of the negative pressure suction port and the negative pressure adjusting port is arranged in the wide-diameter part, one pipe intersection of the three-way pipeline is communicated with the end part of the wide-diameter part, the other pipe intersection is used as the negative pressure suction port or the negative pressure adjusting port, and the other pipe intersection is used as an endoscope inlet port for a sheath endoscope to enter; when the negative pressure suction port and the negative pressure adjusting port are arranged, the external sleeve piece can be also arranged into a four-way pipeline, the negative pressure suction port and the negative pressure adjusting port are simultaneously arranged in the external sleeve piece, the port of the wide-diameter part forms a connecting port to be connected with the external sleeve piece, one pipe intersection of the external sleeve piece is connected with the wide-diameter part, the other pipe intersection is used as the negative pressure suction port to carry out negative pressure suction, the other pipe intersection is used as the negative pressure adjusting port to carry out negative pressure adjustment, and the other pipe intersection can be used as a endoscope inlet port to allow a sheath endoscope to enter.
The sheath endoscope 2 can also be provided with a pressure measuring channel 9, and the pressure measuring channel 9 is connected with an external pressure measuring instrument to measure the pressure. If the pressure measurement is not needed, the pressure measurement channel is closed, and the closing can adopt a form that the end head of the pressure measurement channel is blocked by a block body and other structures or any other forms capable of blocking the end head; when pressure measurement is needed, the plugging structure is taken out, the pressure measurement channel is kept smooth, and the plugging structure is connected with a pressure measurement instrument. Manometry is well known in the art and will not be described further herein.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (18)
1. A ureteroscope sheath kit is characterized by comprising an outer sheath body, wherein the sheath endoscope can be arranged in the outer sheath body in an in-and-out combined mode, the sheath endoscope is provided with a working channel, stone crushing equipment and/or flushing water can enter the working channel, and a cavity gap is formed between the outer wall of the sheath endoscope and the inner wall of the outer sheath body to form a negative pressure suction channel.
2. The ureteroscope sheath kit of claim 1, wherein the sheath endoscope is tightly attached to the inner side wall of the outer sheath body when the sheath endoscope is arranged in the outer sheath body.
3. The ureteroscope sheath kit of claim 1 or 2, wherein the sheath endoscope comprises a first tube wall and a second tube wall, and the first tube wall and the second tube wall are integrally connected; the cross section of the first pipe wall is arc-shaped, and the cross section of the second pipe wall is linear, fold line-shaped or curved.
4. The ureteroscope sheath kit of claim 3, wherein the first tube wall is attached to the inner wall of the sheath body, and the joint of the first tube wall and the second tube wall abuts against the inner wall of the sheath body.
5. The ureteroscope sheath kit of claim 1, wherein the cross-sectional profile of the sheath endoscope is crescent or circular arc or oblate or half moon shaped.
6. The ureteroscope sheath kit of claim 1, wherein the outer sheath body is a hollow tube, the outer sheath body having a sheath endoscope access port therein; the sheath endoscope is also provided with a camera module and a light source module.
7. The ureteroscope sheath kit according to claim 1, wherein the working part of the sheath endoscope extends out of the working part of the outer sheath body by a set length, and the part of the sheath endoscope extending out of the outer sheath body is bendable.
8. The ureteroscope sheath kit of claim 1, wherein the sheath endoscope can rotate 360 degrees and is tightly attached to the inner wall of the outer sheath body when the sheath endoscope rotates.
9. The ureteroscope sheath kit according to claim 1, wherein the handle of the sheath body is provided with a negative pressure suction port.
10. The ureteroscope sheath kit of claim 9, wherein the handle portion of the sheath body is further provided with a negative pressure regulating port.
11. The ureteroscope sheath kit according to claim 1, wherein the handheld part of the sheath body is connected with an external kit, the external kit is a multi-way pipeline, and the handheld part or the external kit of the sheath body is provided with a negative pressure suction port.
12. The ureteroscope sheath kit of claim 11, wherein the hand-held portion or the external kit of the sheath body is further provided with a negative pressure regulating port.
13. The ureteroscope sheath assembly of claim 11 or 12, wherein the external member is provided with a wide portion, and the inner diameter of the wide portion is larger than the inner diameter of the external sheath body.
14. The ureteroscope sheath kit of claim 1, wherein the handle portion of the external sheath is provided with a wide portion, and the inner diameter of the wide portion is larger than the inner diameter of the external sheath.
15. The ureteroscope sheath kit of claim 14, wherein the wide diameter portion is provided with a negative pressure suction port.
16. The ureteroscope sheath kit of claim 15, wherein the wide diameter portion is further provided with a negative pressure regulating port.
17. The ureteroscope sheath kit of claim 14, wherein the wide-diameter part is connected with an external kit, the external kit is a multi-way pipeline, and the wide-diameter part or the external kit is provided with a negative pressure suction port.
18. The ureteroscope sheath assembly of claim 17, wherein the wide diameter portion or the external sleeve is further provided with a negative pressure regulating port.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2019106834993 | 2019-07-26 | ||
| CN201910683499.3A CN110251203A (en) | 2019-07-26 | 2019-07-26 | A kind of Flexible ureteroscope sheath external member with rotatable interior sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111643154A true CN111643154A (en) | 2020-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910683499.3A Pending CN110251203A (en) | 2019-07-26 | 2019-07-26 | A kind of Flexible ureteroscope sheath external member with rotatable interior sheath |
| CN202021491708.9U Active CN212490057U (en) | 2019-07-26 | 2020-07-24 | Ureteroscope sheath external member |
| CN202010722502.0A Pending CN111643154A (en) | 2019-07-26 | 2020-07-24 | Ureteroscope sheath external member |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910683499.3A Pending CN110251203A (en) | 2019-07-26 | 2019-07-26 | A kind of Flexible ureteroscope sheath external member with rotatable interior sheath |
| CN202021491708.9U Active CN212490057U (en) | 2019-07-26 | 2020-07-24 | Ureteroscope sheath external member |
Country Status (2)
| Country | Link |
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| CN (3) | CN110251203A (en) |
| WO (1) | WO2021017413A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112690871A (en) * | 2020-12-22 | 2021-04-23 | 温州市人民医院 | Ureter negative pressure stone removal soft lens sheath |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110251203A (en) * | 2019-07-26 | 2019-09-20 | 张建军 | A kind of Flexible ureteroscope sheath external member with rotatable interior sheath |
| CN114082075B (en) * | 2021-09-28 | 2023-07-18 | 四川大学华西医院 | Auxiliary control bending sheath tube |
| CN114271765B (en) * | 2021-12-23 | 2022-07-12 | 青岛钰仁医疗科技有限公司 | Multifunctional composite light penetration enhanced imaging system and enhanced imaging method |
| CN114532946A (en) * | 2022-02-23 | 2022-05-27 | 杭州思康新医疗科技有限公司 | Endoscope |
| WO2024104040A1 (en) * | 2022-11-17 | 2024-05-23 | 宁波大学附属第一医院 | Bent combined ureteroscope, ureteroscope, and ureteroscope main body |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2402273Y (en) * | 1999-12-25 | 2000-10-25 | 李保灿 | Automatic cervical intervertebral disc rotary-removal and aspiration therapeutical apparatus |
| CN2557084Y (en) * | 2002-06-15 | 2003-06-25 | 许远海 | Rotary suction multi-guide intracranial hematoma remover |
| JP4940838B2 (en) * | 2006-09-04 | 2012-05-30 | ニプロ株式会社 | Thrombus aspiration catheter |
| EP2744424B1 (en) * | 2011-08-17 | 2017-11-08 | Samuel Shiber | Adaptive rotary catheter for opening obstructed bodily vessels |
| CN106668964A (en) * | 2017-03-02 | 2017-05-17 | 上海伴诚医疗科技有限公司 | Intracranial hematoma breaking aspirator and intracranial hematoma breaking vacuum aspiration device |
| CN109394304B (en) * | 2017-08-17 | 2024-01-26 | 上海伴诚医疗科技有限公司 | Bendable broken absorber |
| CN107874812A (en) * | 2017-10-21 | 2018-04-06 | 大连大学 | A kind of intervention thrombus for containing three autonomous channel cavitys removes conduit |
| CN108498134A (en) * | 2018-06-04 | 2018-09-07 | 张建军 | Sustainable perfusion and the combined type Flexible ureteroscope sheath external member attracted |
| CN109662755A (en) * | 2019-01-28 | 2019-04-23 | 上海逸思医疗科技有限公司 | A kind of Echinococcus hydatid cyst rotary cut device of aspiration-type |
| CN110251203A (en) * | 2019-07-26 | 2019-09-20 | 张建军 | A kind of Flexible ureteroscope sheath external member with rotatable interior sheath |
-
2019
- 2019-07-26 CN CN201910683499.3A patent/CN110251203A/en active Pending
-
2020
- 2020-01-03 WO PCT/CN2020/070319 patent/WO2021017413A1/en active Application Filing
- 2020-07-24 CN CN202021491708.9U patent/CN212490057U/en active Active
- 2020-07-24 CN CN202010722502.0A patent/CN111643154A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112690871A (en) * | 2020-12-22 | 2021-04-23 | 温州市人民医院 | Ureter negative pressure stone removal soft lens sheath |
| CN112690871B (en) * | 2020-12-22 | 2022-05-06 | 温州市人民医院 | Ureter negative pressure stone removal soft lens sheath |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110251203A (en) | 2019-09-20 |
| CN212490057U (en) | 2021-02-09 |
| WO2021017413A1 (en) | 2021-02-04 |
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