CN110495927A - A kind of Urology Surgery lithangiuria calculus removing instrument - Google Patents
A kind of Urology Surgery lithangiuria calculus removing instrument Download PDFInfo
- Publication number
- CN110495927A CN110495927A CN201910776241.8A CN201910776241A CN110495927A CN 110495927 A CN110495927 A CN 110495927A CN 201910776241 A CN201910776241 A CN 201910776241A CN 110495927 A CN110495927 A CN 110495927A
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- Prior art keywords
- stone
- madreporic canal
- take
- channel
- urology 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
- 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
- A61B17/22004—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 using mechanical vibrations, e.g. ultrasonic shock waves
- A61B17/22012—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 using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement
- A61B17/22022—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 using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement using electric discharge
-
- 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
- A61B17/22031—Gripping instruments, e.g. forceps, for removing or smashing calculi
- A61B17/22032—Gripping instruments, e.g. forceps, for removing or smashing calculi having inflatable gripping elements
-
- 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
- A61B2017/00287—Bags for minimally invasive surgery
-
- 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
- A61B17/22031—Gripping instruments, e.g. forceps, for removing or smashing calculi
- A61B2017/22035—Gripping instruments, e.g. forceps, for removing or smashing calculi for retrieving or repositioning foreign objects
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Vascular Medicine (AREA)
- Biomedical Technology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Mechanical Engineering (AREA)
- Surgical Instruments (AREA)
Abstract
The present invention relates to calculi therapy technical field, specifically a kind of Urology Surgery lithangiuria calculus removing instrument, including take madreporic canal and take stone；Described one end for taking madreporic canal takes stone described in being provided with, and takes the other end of madreporic canal to be provided with storage pocket, the middle position inside madreporic canal is taken to offer falling rocks channel, the storage pocket is connected with the inside in falling rocks channel；Described to take stone include that symmetrically arranged two shells and connection two shells are telescopically connected to part, and rubble electrode is also equipped on the inside of shell.The present invention will take madreporic canal to protrude into patient's urethra, stone is taken to be crushed stone, broken crushed stone is stored along the inside that falling rocks channel slides into storage pocket, stone is taken to move in the process by rotary shaft band movable snail sleeve, and then shell opening and closing are driven by the cooperation between the first connector and the second connector, to enable to take stone to be suitable for different size of calculus, guarantees that rubble electrode is close to calculus, improve lithotrity effect.
Description
Technical field
The present invention relates to calculi therapy technical field, specifically a kind of Urology Surgery lithangiuria calculus removing instrument.
Background technique
Calculus is in human body or the intracorporal catheter lumen of animal or luminal organ (such as kidney, ureter, gall-bladder or bladder)
Chamber in the solid mass that is formed, be mainly seen in gall-bladder and bladder, renal plevis, also seen in pancreas conduit, salivary ducts etc.
In chamber.Calculus is made of inorganic salts or organic matter.Generally have a core in calculus, by fall off epithelial cell, bacterial aggregate, post
Infested ovum or polypide, excrement block or foreign matter composition, inorganic salts or organic matter deposit on core layer by layer again.Not due to afflicted organ
Together, ingredient, shape contained by the mechanism of calculus, quality, influence to body etc. are all different.Generally speaking, calculus can
It causes lumen to block, influences the discharge of afflicted organ's liquid, generate the symptoms such as pain, bleeding or secondary infection.
Existing calculi in urinary system lithotripsy apparatus when handling calculus, stone taking device can not to different size of calculus into
Row break process, so as to cause calculus processing it is unclean, there are also rubble residues to remain in urinary system, leave it is subsequent again
The lithogenous hidden danger of shape.
Therefore, for the above status, there is an urgent need to develop a kind of Urology Surgery lithangiuria calculus removing instruments, current to overcome
Deficiency in practical application.
Summary of the invention
The purpose of the present invention is to provide a kind of Urology Surgery lithangiuria calculus removing instruments, to solve in above-mentioned background technique
The problem of proposition.
To achieve the above object, the invention provides the following technical scheme:
A kind of Urology Surgery lithangiuria calculus removing instrument, including take madreporic canal and take stone；Described one end for taking madreporic canal is arranged
Stone is taken described in having, takes the other end of madreporic canal to be provided with storage pocket, the middle position inside madreporic canal is taken to offer falling rocks channel, institute
Storage pocket is stated to be connected with the inside in falling rocks channel；It is described take stone include symmetrically arranged two shells and connection two shells
Be telescopically connected to part, rubble electrode is also equipped on the inside of shell.
As a further solution of the present invention: the storage pocket with take madreporic canal to be detachably fixed to connect.
As a further solution of the present invention: the bottom for taking stone offers through-hole, and through-hole passes through connecting tube and falls
The inside of real channel is connected to.
As a further solution of the present invention: the second gear ring is fixedly installed on the outside of the rotary shaft, it is described to take madreporic canal
Outside be rotatably equipped with knob, the first gear ring is fixedly installed on the inside of knob, the first gear ring is engaged with the second gear ring.
As a further solution of the present invention: the bottom for taking madreporic canal is also fixedly installed with air pump, and air pump passes through tracheae
It is connected to the inside in falling rocks channel.
As a further solution of the present invention: the two sides up and down for taking madreporic canal to be internally located at falling rocks channel symmetrically offer
Two rotation chambers, the inner rotation for rotating chamber are equipped with rotary shaft.
As a further solution of the present invention: the rotary shaft is close to take one end of stone to be provided with thread segment, thread segment
On be threaded with swivel nut, swivel nut is slidably connected with rotation chamber.
As a further solution of the present invention: the first connector, the shell are fixedly installed on the end of the swivel nut
Outside be fixedly installed with the second connector, the second connector and the first connector are rotatablely connected.
Compared with prior art, the beneficial effects of the present invention are: the present invention will take madreporic canal to protrude into patient's urethra, stone is taken
Stone is crushed, broken crushed stone is stored along the inside that falling rocks channel slides into storage pocket, during taking stone
It is moved by rotary shaft band movable snail sleeve, and then shell opening and closing is driven by the cooperation between the first connector and the second connector,
To enable to take stone to be suitable for different size of calculus, guarantees that rubble electrode is close to calculus, improve lithotrity effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of Urology Surgery lithangiuria calculus removing instrument.
Fig. 2 is the cross-sectional view of Urology Surgery lithangiuria calculus removing instrument.
Fig. 3 is the structural schematic diagram that stone is taken in Urology Surgery lithangiuria calculus removing instrument.
Fig. 4 is the structural schematic diagram of the first gear ring and the second gear ring in Urology Surgery lithangiuria calculus removing instrument.
Fig. 5 is the structural schematic diagram of embodiment 2 in Urology Surgery lithangiuria calculus removing instrument.
In figure: 1- take madreporic canal, 2- knob, 3- storage pocket, 4- take stone, 5- connecting tube, 6- falling rocks channel, 7- rotation chamber,
8- rotary shaft, 9- thread segment, 10- swivel nut, the first connector of 11-, the second connector of 12-, the first gear ring of 13-, the second tooth of 14-
Circle, 15- shell, 16- are telescopically connected to part, 17- rubble electrode, 18- through-hole, 19- air pump, 20- tracheae.
Specific embodiment
The technical solution of the patent is explained in further detail With reference to embodiment.
The embodiment of this patent is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining this patent, and cannot be understood as a limitation of this patent.
In the description of this patent, it is to be understood that term " center ", "upper", "lower", "front", "rear", " left side ",
The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on the figure
Orientation or positional relationship, be merely for convenience of description this patent and simplify description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limitation to this patent.
In the description of this patent, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection ", " setting " shall be understood in a broad sense, for example, it may be being fixedly linked, being arranged, may be a detachable connection, set
It sets, or is integrally connected, is arranged.For the ordinary skill in the art, above-mentioned art can be understood as the case may be
The concrete meaning of language in this patent.
Embodiment 1
Please refer to Fig. 1-4, in the embodiment of the present invention, a kind of Urology Surgery lithangiuria calculus removing instrument, including take 1 He of madreporic canal
Take stone 4；Described one end for taking madreporic canal 1 takes stone 4 described in being provided with, and takes the other end of madreporic canal 1 to be provided with storage pocket 3, takes stone
Middle position inside pipe 1 offers falling rocks channel 6, and the storage pocket 3 is connected with the inside in falling rocks channel 6, will take madreporic canal 1
It protrudes into patient's urethra, stone 4 is taken to be crushed stone, broken crushed stone slides into storage pocket 3 along falling rocks channel 6
Inside is stored；
In order to facilitate the cleaning of crushed stone, the storage pocket 3 with take madreporic canal 1 to be detachably fixed to connect；
The two sides up and down for taking madreporic canal 1 to be internally located at falling rocks channel 6 are symmetrically opened up there are two chamber 7 is rotated, and rotate chamber 7
Inner rotation is equipped with rotary shaft 8, and rotary shaft 8 is threadedly coupled on thread segment 9 close to taking one end of stone 4 to be provided with thread segment 9
There is swivel nut 10, swivel nut 10 is slidably connected with rotation chamber 7, through the rotation band movable snail sleeve 10 of rotary shaft 8 before rotating 7 inside of chamber
After slide；It is described that stone 4 is taken to be telescopically connected to part 16 including two shells 15 of symmetrically arranged two shells 15 and connection, due to
It is telescopically connected to the telescopic action of part 16, two shells 16 can constantly carry out opening and closing；The inside of the shell 15 is also equipped with rubble
Electrode 17 in the crushed stone for being attached to rubble electrode 17 inside urethra, passes through rubble by the opening and closing of two shells 16 of control
Electrode 17 is crushed crushed stone, to complete to take stone to urethral calculus；It is fixedly installed on the end of the swivel nut 10
First connector 11, the outside of the shell 16 are fixedly installed with the second connector 12, the second connector 12 and the first connector
11 rotation connections, when swivel nut 10 is moved forward and backward inside driving chamber 7, by between the first connector 11 and the second connector 12
Cooperation drives 16 opening and closing of shell, to enable that stone 4 is taken to be suitable for different size of calculus, guarantees rubble electrode 17 and calculus
It is close to, improves lithotrity effect；
In order to ensure crushed stone can fall into the inside in falling rocks channel 6, the bottom for taking stone 4 offers through-hole 18,
Through-hole 18 is connected to by connecting tube 5 with the inside for implementing channel 6；
In order to guarantee two rotary shafts 8 while rotating in same direction, the outside of the rotary shaft 8 is fixedly installed with the second tooth
Circle 14, the outside for taking madreporic canal 1 is rotatably equipped with knob 2, and the inside of knob 2 is fixedly installed with the first gear ring 13, the first tooth
Circle 13 is engaged with the second gear ring 14, by rotating knob 2, makes the first gear ring 13 that two the second gear rings 14 be driven to turn in the same direction simultaneously
It is dynamic, to drive two rotary shafts 8 to rotate in same direction simultaneously, to carry out drive control to the opening and closing for taking stone 4.
Embodiment 2
Please refer to Fig. 1-4, in the embodiment of the present invention, a kind of Urology Surgery lithangiuria calculus removing instrument, including take 1 He of madreporic canal
Take stone 4；Described one end for taking madreporic canal 1 takes stone 4 described in being provided with, and takes the other end of madreporic canal 1 to be provided with storage pocket 3, takes stone
Middle position inside pipe 1 offers falling rocks channel 6, and the storage pocket 3 is connected with the inside in falling rocks channel 6, will take madreporic canal 1
It protrudes into patient's urethra, stone 4 is taken to be crushed stone, broken crushed stone slides into storage pocket 3 along falling rocks channel 6
Inside is stored；
In order to facilitate the cleaning of crushed stone, the storage pocket 3 with take madreporic canal 1 to be detachably fixed to connect；
The two sides up and down for taking madreporic canal 1 to be internally located at falling rocks channel 6 are symmetrically opened up there are two chamber 7 is rotated, and rotate chamber 7
Inner rotation is equipped with rotary shaft 8, and rotary shaft 8 is threadedly coupled on thread segment 9 close to taking one end of stone 4 to be provided with thread segment 9
There is swivel nut 10, swivel nut 10 is slidably connected with rotation chamber 7, through the rotation band movable snail sleeve 10 of rotary shaft 8 before rotating 7 inside of chamber
After slide；It is described that stone 4 is taken to be telescopically connected to part 16 including two shells 15 of symmetrically arranged two shells 15 and connection, due to
It is telescopically connected to the telescopic action of part 16, two shells 16 can constantly carry out opening and closing；The inside of the shell 15 is also equipped with rubble
Electrode 17 in the crushed stone for being attached to rubble electrode 17 inside urethra, passes through rubble by the opening and closing of two shells 16 of control
Electrode 17 is crushed crushed stone, to complete to take stone to urethral calculus；It is fixedly installed on the end of the swivel nut 10
First connector 11, the outside of the shell 16 are fixedly installed with the second connector 12, the second connector 12 and the first connector
11 rotation connections, when swivel nut 10 is moved forward and backward inside driving chamber 7, by between the first connector 11 and the second connector 12
Cooperation drives 16 opening and closing of shell, to enable that stone 4 is taken to be suitable for different size of calculus, guarantees rubble electrode 17 and calculus
It is close to, improves lithotrity effect；
In order to ensure crushed stone can fall into the inside in falling rocks channel 6, the bottom for taking stone 4 offers through-hole 18,
Through-hole 18 is connected to by connecting tube 5 with the inside for implementing channel 6；
In order to guarantee two rotary shafts 8 while rotating in same direction, the outside of the rotary shaft 8 is fixedly installed with the second tooth
Circle 14, the outside for taking madreporic canal 1 is rotatably equipped with knob 2, and the inside of knob 2 is fixedly installed with the first gear ring 13, the first tooth
Circle 13 is engaged with the second gear ring 14, by rotating knob 2, makes the first gear ring 13 that two the second gear rings 14 be driven to turn in the same direction simultaneously
It is dynamic, to drive two rotary shafts 8 to rotate in same direction simultaneously, to carry out drive control to the opening and closing for taking stone 4.
Referring to Fig. 5, the present embodiment difference from example 1 is that, the bottom for taking madreporic canal 1 is also fixedly mounted
There is air pump 19, air pump 19 is connected to by tracheae 20 with the inside in falling rocks channel 6, implements 6 inside gas of channel by the extraction of air pump 19
Body, so that it is guaranteed that crushed stone can quickly fall into the inside of storage pocket 3.
The present invention will take madreporic canal to protrude into patient's urethra, and stone is taken to be crushed stone, broken crushed stone along
The inside that falling rocks channel slides into storage pocket is stored, and is taken and is moved during stone by rotary shaft band movable snail sleeve, and then passes through the
Cooperation between a connection piece and the second connector drives shell opening and closing, to enable that stone is taken to be suitable for different size of knot
Stone guarantees that rubble electrode is close to calculus, improves lithotrity effect.
The above are merely the preferred embodiment of the present invention, it is noted that for those skilled in the art, not
Under the premise of being detached from present inventive concept, several modifications and improvements can also be made, these also should be considered as protection model of the invention
It encloses, these all will not influence the effect and patent practicability that the present invention is implemented.
Claims (8)
1. a kind of Urology Surgery lithangiuria calculus removing instrument, which is characterized in that including taking madreporic canal (1) and taking stone (4)；It is described to take
One end of madreporic canal (1) takes stone (4) described in being provided with, and the other end of madreporic canal (1) is taken to be provided with storage pocket (3), takes in madreporic canal (1)
The middle position in portion offers falling rocks channel (6), and the storage pocket (3) is connected with the inside of falling rocks channel (6)；It is described to take stone
Head (4) includes symmetrically arranged two shells (15) and connects being telescopically connected to part (16) for two shells (15), shell (15)
Inside is also equipped with rubble electrode (17).
2. Urology Surgery lithangiuria calculus removing instrument according to claim 1, which is characterized in that the storage pocket (3) with
Madreporic canal (1) is taken to be detachably fixed connection.
3. Urology Surgery lithangiuria calculus removing instrument according to claim 2, which is characterized in that the stone (4) of taking
Bottom offers through-hole (18), and through-hole (18) is connected to by connecting tube (5) with the inside for implementing channel (6).
4. Urology Surgery lithangiuria calculus removing instrument according to claim 3, which is characterized in that the madreporic canal (1) of taking
Bottom is also fixedly installed with air pump (19), and air pump (19) is connected to by tracheae (20) with the inside of falling rocks channel (6).
5. Urology Surgery lithangiuria calculus removing instrument according to claim 1, which is characterized in that described to take in madreporic canal (1)
The two sides up and down that portion is located at falling rocks channel (6) are symmetrically opened up there are two chamber (7) are rotated, and the inner rotation of rotation chamber (7) is equipped with
Rotary shaft (8).
6. Urology Surgery lithangiuria calculus removing instrument according to claim 5, which is characterized in that the rotary shaft (8) is leaned on
Closely one end of stone (4) is taken to be provided with thread segment (9), is threaded on thread segment (9) swivel nut (10), swivel nut (10) and rotation
Chamber (7) are slidably connected.
7. Urology Surgery lithangiuria calculus removing instrument according to claim 6, which is characterized in that the rotary shaft (8)
Outside is fixedly installed with the second gear ring (14), and described take is rotatably equipped with knob (2) on the outside of madreporic canal (1), the inside of knob (2)
It is fixedly installed with the first gear ring (13), the first gear ring (13) is engaged with the second gear ring (14).
8. Urology Surgery lithangiuria calculus removing instrument according to claim 6, which is characterized in that the end of the swivel nut (10)
It is fixedly installed with the first connector (11), is fixedly installed with the second connector (12) on the outside of the shell (16), second on head
Connector (12) and the first connector (11) are rotatablely connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910776241.8A CN110495927B (en) | 2019-08-22 | 2019-08-22 | Urinary surgery lithangiuria instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910776241.8A CN110495927B (en) | 2019-08-22 | 2019-08-22 | Urinary surgery lithangiuria instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110495927A true CN110495927A (en) | 2019-11-26 |
| CN110495927B CN110495927B (en) | 2022-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910776241.8A Active CN110495927B (en) | 2019-08-22 | 2019-08-22 | Urinary surgery lithangiuria instrument |
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| CN (1) | CN110495927B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112568965A (en) * | 2020-12-02 | 2021-03-30 | 杨清珠 | Stone extractor for gastroenterology |
| CN113171054A (en) * | 2021-04-29 | 2021-07-27 | 中南大学湘雅医院 | Multifunctional choledochoscope guiding device under laparoscope |
| CN113384320A (en) * | 2021-06-02 | 2021-09-14 | 常州市第二人民医院 | Urinary calculus stone breaking device for urology surgery |
| CN113813013A (en) * | 2021-08-25 | 2021-12-21 | 四川大学华西医院 | Urological urinary calculus stone breaking device |
| CN113893439A (en) * | 2021-11-12 | 2022-01-07 | 新疆维吾尔自治区人民医院 | Urethra protective sheath for treating urinary system calculus |
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| US20090270907A1 (en) * | 2008-04-28 | 2009-10-29 | Urotech, Inc. | Retrievable urethra sparing prosthetic stent and kidney stone intervention system |
| CN203789990U (en) * | 2014-03-19 | 2014-08-27 | 古啸宇 | Novel calculus removing instrument for common bile duct calculi |
| US20150265297A1 (en) * | 2014-03-21 | 2015-09-24 | Terumo Kabushiki Kaisha | Calculus retrieving/removing device and method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112568965A (en) * | 2020-12-02 | 2021-03-30 | 杨清珠 | Stone extractor for gastroenterology |
| CN113171054A (en) * | 2021-04-29 | 2021-07-27 | 中南大学湘雅医院 | Multifunctional choledochoscope guiding device under laparoscope |
| CN113384320A (en) * | 2021-06-02 | 2021-09-14 | 常州市第二人民医院 | Urinary calculus stone breaking device for urology surgery |
| CN113813013A (en) * | 2021-08-25 | 2021-12-21 | 四川大学华西医院 | Urological urinary calculus stone breaking device |
| CN113813013B (en) * | 2021-08-25 | 2023-11-28 | 四川大学华西医院 | Urological lithangiuria lithotripter |
| CN113893439A (en) * | 2021-11-12 | 2022-01-07 | 新疆维吾尔自治区人民医院 | Urethra protective sheath for treating urinary system calculus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110495927B (en) | 2022-11-22 |
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