CN109107023A - Expand guide - Google Patents
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- Publication number
- CN109107023A CN109107023A CN201810869253.0A CN201810869253A CN109107023A CN 109107023 A CN109107023 A CN 109107023A CN 201810869253 A CN201810869253 A CN 201810869253A CN 109107023 A CN109107023 A CN 109107023A
- Authority
- CN
- China
- Prior art keywords
- expansion
- guide
- elastic
- diameter
- elastic skeleton
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1002—Balloon catheters characterised by balloon shape
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0074—Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M29/00—Dilators with or without means for introducing media, e.g. remedies
- A61M29/02—Dilators made of swellable material
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M29/00—Dilators with or without means for introducing media, e.g. remedies
- A61M29/02—Dilators made of swellable material
- A61M2029/025—Dilators made of swellable material characterised by the guiding element
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2210/00—Anatomical parts of the body
- A61M2210/10—Trunk
- A61M2210/1078—Urinary tract
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Biomedical Technology (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Vascular Medicine (AREA)
- Child & Adolescent Psychology (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
本发明提供一种扩张导引器，包括导引器主体、扩张体、导引器座和滑动套管，所述导引器主体依次包括导引部、扩张体部和主体部，滑动套管滑动套于主体部，主体部远离扩张体一端与导引器座相连，所述扩张体包括不少于4条弹性骨架，所述弹性骨架两端分别设有弹性骨架连接体，弹性骨架通过弹性骨架连接体设置于扩张体部处。本发明的有益效果是由于采用上述技术方案，为导管的插管提供了新的方式，插管阻力小，患者痛苦小。
The present invention provides an expansion introducer, comprising an introducer body, an expansion body, an introducer seat and a sliding sleeve. The sliding sleeve is sleeved on the main body part, and one end of the main body part away from the expansion body is connected with the guide seat. The expansion body includes no less than 4 elastic skeletons, and two ends of the elastic skeleton are respectively provided with elastic skeleton connecting bodies, and the elastic skeleton passes through the elastic skeleton. The skeleton connecting body is arranged at the expansion body part. The beneficial effect of the present invention is that due to the adoption of the above technical solution, a new way is provided for intubation of the catheter, the intubation resistance is small, and the patient suffers less pain.
Description
Technical field
The invention belongs to the field of medical instrument technology, especially a kind of expansion guide.
Background technique
It is intubated as clinical common medical procedure, plays a significant role in clinic.Being intubated common effect is by leading
Pipe swaps the intracorporal liquid substance of chamber a certain in human body with the external world, such as catheter exports intravesical urine, stomach
Pipe injects spoon meat to stomach, and diversion pipe excludes the intracorporal fester of chamber, crimson blood external etc..
Conduit mainly has silica gel, rubber, EVA, PVC etc., and head end and tube body are partially soft.During intubation, work as channel
When more narrow, it is excessive to have an intubation resistance, the problem of difficult intubation.By taking catheter as an example, some patients are because urethra is narrow
Situations such as narrow, hyperplasia of prostate, canceration, neck of urinary bladder hardening, causes urethra internal resistance bigger than normal, greatly increases and sets pipe difficulty.It is existing to face
With on the other hand orificium urethrae externum is fixed usually after disinfection orificium urethrae externum and surrounding tissue, another hand is direct or uses tweezers for bed urethral catheterization
Deng holding catheter, be inserted into from urethral orifice, in face of resistance bending and when narrow situation, then need more firmly to be placed in, to patient with
Carry out huge pain, causes the damage of mucous membrane of urethra, cause the destruction of urologic structure, increase the risk of urinary tract infection.Stomach tube is inserted
During pipe when passing through cardia, the problem of equally existing difficult intubation.
It is had the following problems in the catheterization procedure of existing clinic: the needs when catheter head top marches at ankylurethria
External force is increased to promote, shear action can occur for apical head and stenosis tissue, even by stenosis, tissue
Inner membrance also suffers from serious contusion and creates conditions for microorganism infection, and the measures such as catheter outer surface coating lubricating oil produce little effect.
A kind of guide wire catheter of the disclosure of the invention of application number 2009200275009 comprising seal wire and catheter, urethral catheterization
It is equipped with seal wire in pipe, first seal wire is inserted into catheter, makes catheter that there is certain rigidity, after catheter is inserted into bladder,
Seal wire is extracted out from catheter again.
However, above-mentioned intubation problem encountered is only to be delayed in the degree limited to very much even if there is the presence of seal wire
Solution, there is no fundamentally reduce to lead intubation resistance.
Summary of the invention
The object of the present invention is to provide a kind of expansion guide, it is big especially to solve resistance at the top of conduit in catheterization procedure
Problem.
The technical scheme is that
A kind of expansion guide, including guide main body, expansion body, guide seat and sliding sleeve, the guide master
Body successively includes guidance part, expansion body portion and main part, and sliding sleeve sliding is placed on main part, and main part is far from expansion body one end
It is connected with guide seat, the expansion body includes no less than 4 elastic skeletons, and the elastic skeleton both ends are respectively equipped with elastic bone
Frame connector, elastic skeleton are set at expansion body portion by elastic skeleton connector.
It needs to expand guide when use and tubes fit uses, by expansion guide insertion conduit, guide expansion
The guidance part of device and expansion body portion are stretched out from the through-hole of catheter proximal end, and expansion body portion is provided with the expansion body of lantern structure,
Expansion body is started by being placed on sliding sleeve outside main part, in use, operator by sliding sleeve forward with respect to main part
Sliding, sliding sleeve squeeze the expansion body positioned at expansion body portion in the axial direction, and the elastic skeleton of expansion body is in sliding sleeve
Effect is lower to occur Bending Deformation, and multiple groups elastic skeleton forms the extended region of lantern-shaped in urethra, outside expansion guide
The advance of conduit dredged path.
The elastic skeleton connector is annular shape, the internal diameter and the diameter phase in expansion body portion of the elastic skeleton connector
Cooperation, diameter of the outer diameter of elastic skeleton connector with guidance part close to expansion body portion one end match.Elastic skeleton connector
Cooperate elastic skeleton to form an independent extension fixture, be directly connected to elastic skeleton with guidance part or sliding sleeve,
The advantage is that elastic skeleton will not be distorted, to make each elasticity of expansion body when sliding sleeve is rotated relative to main part
Skeleton expansion is uniform.Expansion body can make it only receive the extruding from sliding sleeve, without connecing relative to guide body rotation
The power in generated circumferential direction is rotated by sliding sleeve.
The elastic skeleton is connected by arc connector with elastic skeleton connector, and the radian of the arc connector is
0.1-2°.When being squeezed, bending direction is simultaneously not fixed elastic skeleton, is both possible to be bent outwardly, it is also possible to inwardly curved
The radian of song, arc connector provides guidance for the bending direction of elastic skeleton, is bent outwardly it, to reach lantern-shaped
Expansion effect.
The elastic skeleton material be elasticity can restorer, such as Nitinol, medical stainless steel, beryllium-bronze, spring steel
Deng.
The expansion external surface is equipped with the elastic covering film for household with expansion mates.The inner sidewall and bullet of the elastic covering film for household
Property skeleton is fixedly connected.Elastic covering film for household increases the contact area of expansion body and urethra, reduces pressure, reduces expansion body expansion to trouble
Sense of discomfort caused by person.
The guide seat includes guide seat lower part, guide seat top and the block set for being placed on guide seat top, institute
It states block set and is equipped with the circular hole matched with main part diameter close to guide body side, the diameter of the circular hole is less than sliding sleeve
The diameter of pipe.Block set and guide seat top opposite can be slided, and guide main body passes through circular hole and fixes with guide seat top, covers
When the opposite guide seat top of seat is slided, casing is pushed to move forward, guide seat and block set outer diameter are larger, convenient for expansion
Guide is opened to be operated.
The guide seat outer surface of upper is equipped with the first screw thread, and set base inner surface is equipped with the matched with the first screw thread
Two screw threads.Make block set relative to guide seat ionized motion by screw thread, can also effectively to the sliding sleeve to have advanced into
Row limit, the sliding sleeve of advance has the tendency that reset under the reaction of expansion body, after limit, operator can be made to vacate both hands
Carry out the operation of catheter.
Optionally, the guidance part is arc.The guidance part of arc is elastic material, and the material of guidance part includes such as, gathering
Vinyl chloride, thermoplastic elastomer (TPE), polyurethane, polypropylene, ABS, nylon etc..For not being the body passageway of straight line, arc is led
Draw portion to be easier to conduct thrust.
The top of the guidance part is cone or hemispherical, and the guidance part basal diameter and main part diameter match
It closes.
The advantages and positive effects of the present invention are: due to the adoption of the above technical scheme, expansion guide is that intubation mentions
New mode is supplied, intubation resistance is small, and patient suffering is small.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of expansion body contraction state of the present invention
Fig. 2 is the cross-sectional view after expansion body of the present invention is softened
Fig. 3 is the structural schematic diagram in Fig. 2 at A
Fig. 4 is the structural schematic diagram in Fig. 2 at B
In figure:
1, guide main body 2, expansion body 3, guide seat
4, sliding sleeve 11, guidance part 12, expansion body portion
13, main part 21, elastic skeleton 22, connector
23, elastic skeleton connector 31, guide seat lower part 32, guide seat top
33, block set
Specific embodiment
Embodiment 1
As shown in Figs 1-4,
A kind of expansion guide, including guide main body 1, expansion body 2, guide seat 3 and sliding sleeve 4, the guiding
Device main body 1 successively includes guidance part 11, expansion body portion 12 and main part 13, and the sliding of sliding sleeve 4 is placed on main part 13, main part
13 are connected far from 2 one end of expansion body with guide seat 3, and the expansion body 2 includes 6 elastic skeletons 21, the elastic skeleton 21
Both ends are respectively equipped with elastic skeleton connector 23, and elastic skeleton 21 is set to expansion body portion 12 by elastic skeleton connector 23
Place.
The elastic skeleton connector 23 is annular shape, internal diameter and the expansion body portion 12 of the elastic skeleton connector 23
Diameter matches, and diameter of the outer diameter of elastic skeleton connector 23 with guidance part 11 close to 12 one end of expansion body portion matches.
The elastic skeleton 21 is connected by arc connector 22 with elastic skeleton connector 23, the arc connector 22
Radian be 0.3 °.
2 outer surface of expansion body is equipped with the elastic covering film for household matched with expansion body 2.
The inner sidewall of the elastic covering film for household is fixedly connected with elastic skeleton 21.
The guide seat 3 includes guide seat lower part 31, guide seat top 32 and the set for being placed on guide seat top
Seat 33, the block set 33 are equipped with the circular hole that matches with 13 diameter of main part close to 1 side of guide main body, the circular hole it is straight
Diameter is less than the diameter of sliding sleeve 4.
32 outer surface of guide seat top is equipped with the first screw thread, and 33 inner surface of block set is equipped with and matches with the first screw thread
The second screw thread.
The top of the guidance part 11 is hemispherical, and 11 basal diameter of guidance part is matched with 13 diameter of main part.
Embodiment 2
As shown in Figs 1-4
A kind of expansion guide, including guide main body 1, expansion body 2, guide seat 3 and sliding sleeve 4, the guiding
Device main body 1 successively includes guidance part 11, expansion body portion 12 and main part 13, and the sliding of sliding sleeve 4 is placed on main part 13, main part
13 are connected far from 2 one end of expansion body with guide seat 3, and the expansion body 2 includes 6 elastic skeletons 21, the elastic skeleton 21
Both ends are respectively equipped with elastic skeleton connector 23, and elastic skeleton 21 is set to expansion body portion 12 by elastic skeleton connector 23
Place.
The elastic skeleton connector 23 is annular shape, internal diameter and the expansion body portion 12 of the elastic skeleton connector 23
Diameter matches, and diameter of the outer diameter of elastic skeleton connector 23 with guidance part 11 close to 12 one end of expansion body portion matches.
The elastic skeleton 21 is connected by arc connector 22 with elastic skeleton connector 23, the arc connector 22
Radian be 0.3 °.
2 outer surface of expansion body is equipped with the elastic covering film for household matched with expansion body 2.
The inner sidewall of the elastic covering film for household is fixedly connected with elastic skeleton 21.
The guide seat 3 includes guide seat lower part 31, guide seat top 32 and the set for being placed on guide seat top
Seat 33, the block set 33 are equipped with the circular hole that matches with 13 diameter of main part close to 1 side of guide main body, the circular hole it is straight
Diameter is less than the diameter of sliding sleeve 4.
32 outer surface of guide seat top is equipped with the first screw thread, and 33 inner surface of block set is equipped with and matches with the first screw thread
The second screw thread.
The guidance part 11 is arc.The guidance part 11 is elastic material, and the material is any one in X, Y.
The top of the guidance part 11 is hemispherical, and 11 basal diameter of guidance part is matched with 13 diameter of main part.
Embodiment 3
As shown in Figs 1-4
A kind of expansion guide, including guide main body 1, expansion body 2, guide seat 3 and sliding sleeve 4, the guiding
Device main body 1 successively includes guidance part 11, expansion body portion 12 and main part 13, and the sliding of sliding sleeve 4 is placed on main part 13, main part
13 are connected far from 2 one end of expansion body with guide seat 3, and the expansion body 2 includes 6 elastic skeletons 21, the elastic skeleton 21
Both ends are respectively equipped with elastic skeleton connector 23, and elastic skeleton 21 is set to expansion body portion 12 by elastic skeleton connector 23
Place.
The elastic skeleton connector 23 is annular shape, internal diameter and the expansion body portion 12 of the elastic skeleton connector 23
Diameter matches, and diameter of the outer diameter of elastic skeleton connector 23 with guidance part 11 close to 12 one end of expansion body portion matches.
The elastic skeleton 21 is connected by arc connector 22 with elastic skeleton connector 23, the arc connector 22
Radian be 0.3 °.
2 outer surface of expansion body is equipped with the elastic covering film for household matched with expansion body 2.
The inner sidewall of the elastic covering film for household is fixedly connected with elastic skeleton 21.
The guide seat 3 includes guide seat lower part 31, guide seat top 32 and the set for being placed on guide seat top
Seat 33, the block set 33 are equipped with the circular hole that matches with 13 diameter of main part close to 1 side of guide main body, the circular hole it is straight
Diameter is less than the diameter of sliding sleeve 4.
The block set 33 is slidably connected with guide seat top 32, and guide seat top 32 is equipped with limiting device.The limit
Position device includes the gag lever post for running through guide seat top 32 along 32 radial direction of guide seat top, the length of the gag lever post
Greater than the diameter on guide seat top 32, the middle part of the gag lever post is equipped with elastomer.
For guide main body 1 by 2 dilating urethra of expansion body, final effect is to make to be placed on the conduit outside expansion guide
Advance.When expansion body 2 is supported out, by the extruding of urethral wall, the trend of the oriented contract of expansion body 2, sliding sleeve 4 also has
The trend resetted backward, block set 33 are in contact with sliding sleeve 4, and block set 33 also has the tendency that resetting backward, at this time, it may be necessary to will slide
Dynamic casing 4 and guide main body 1 are relatively fixed, that is, need block set 33 and 32 positions of guide seat top is relatively fixed,
To keep the deformation of expansion body 2.It is equipped with elastomer in limiting device, under normal condition, elastomer is compressed, the length of gag lever post
Degree is equal to the internal diameter of block set 33, and gag lever post is located in block set 33, when 33 forward slip of block set, 33 end of block set and gag lever post point
From the length of the expansion of gag lever post elastomer, gag lever post is greater than 33 internal diameter of block set, plays restriction effect to the reset of block set 33.
The top of the guidance part 11 is hemispherical, and 11 basal diameter of guidance part is matched with 13 diameter of main part.
One embodiment of the present invention has been described in detail above, but the content is only preferable implementation of the invention
Example, should not be considered as limiting the scope of the invention.It is all according to all the changes and improvements made by the present patent application range
Deng should still be within the scope of the patent of the present invention.
Claims (9)
1. a kind of expansion guide, it is characterised in that: described including guide main body, expansion body, guide seat and sliding sleeve
Guide main body successively includes guidance part, expansion body portion and main part, and sliding sleeve sliding is placed on main part, and main part is far from expansion
It opens body one end to be connected with guide seat, the expansion body includes no less than 4 elastic skeletons, and the elastic skeleton both ends are set respectively
Flexible skeleton connector, elastic skeleton are set at expansion body portion by elastic skeleton connector.
2. expansion guide according to claim 1, it is characterised in that: the elastic skeleton connector is annular shape, institute
The internal diameter for stating elastic skeleton connector is matched with the diameter in expansion body portion, and the outer diameter and guidance part of elastic skeleton connector are close
The diameter of expansion body portion one end matches.
3. expansion guide according to claim 2, it is characterised in that: the elastic skeleton passes through arc connector and bullet
Property skeleton connector be connected, the radian of the arc connector is 0.1-2 °.
4. expansion guide according to claim 1, it is characterised in that: the expansion external surface is equipped with and expansion body phase
The elastic covering film for household of cooperation.
5. expansion guide according to claim 4, it is characterised in that: the inner sidewall and elastic skeleton of the elastic covering film for household
It is fixedly connected.
6. expansion guide according to claim 1, it is characterised in that: the guide seat include guide seat lower part,
Guide seat top and the block set for being placed on guide seat top, the block set is equipped with close to guide body side and main part
The circular hole that diameter matches, the diameter of the circular hole are less than the diameter of sliding sleeve.
7. expansion guide according to claim 6, it is characterised in that: the guide seat outer surface of upper is equipped with first
Screw thread, set base inner surface are equipped with the second screw thread matched with the first screw thread.
8. expansion guide according to claim 1, it is characterised in that: the guidance part is arc.
9. expansion guide according to claim 1, it is characterised in that: the top of the guidance part is cone or hemisphere
Shape, the guidance part basal diameter are matched with main part diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810869253.0A CN109107023B (en) | 2018-08-02 | 2018-08-02 | Expansion guide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810869253.0A CN109107023B (en) | 2018-08-02 | 2018-08-02 | Expansion guide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109107023A true CN109107023A (en) | 2019-01-01 |
| CN109107023B CN109107023B (en) | 2024-08-20 |
Family
ID=64851618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810869253.0A Active CN109107023B (en) | 2018-08-02 | 2018-08-02 | Expansion guide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109107023B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110464424A (en) * | 2019-07-30 | 2019-11-19 | 杭州市第三人民医院 | A kind of urological department lithangiuria crushed stone |
| WO2023217976A1 (en) * | 2022-05-12 | 2023-11-16 | Boston Scientific Medical Device Limited | Apparatus for biological tissue puncture expansion |
Citations (7)
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|---|---|---|---|---|
| US5397305A (en) * | 1990-12-21 | 1995-03-14 | Advanced Cardiovascular Systems, Inc. | Fixed-wire dilatation catheter with rotatable balloon assembly |
| WO1995011055A1 (en) * | 1993-10-22 | 1995-04-27 | Scimed Lifesystems, Inc. | Improved stent delivery apparatus and method |
| CN201572415U (en) * | 2009-12-10 | 2010-09-08 | 杜惠敏 | Uterus dilating rod |
| US20120136385A1 (en) * | 2010-11-16 | 2012-05-31 | Cully Edward H | Fenestration devices, systems, and methods |
| CN205235141U (en) * | 2015-12-29 | 2016-05-18 | 赵冰 | Uterus cervical dilator |
| CN205759034U (en) * | 2016-08-24 | 2016-12-07 | 杨焱 | The anti-blocking smoothening device of peritoneal cavity drainage tube |
| CN209967370U (en) * | 2018-08-02 | 2020-01-21 | 山东威高集团医用高分子制品股份有限公司 | dilation introducer |
-
2018
- 2018-08-02 CN CN201810869253.0A patent/CN109107023B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5397305A (en) * | 1990-12-21 | 1995-03-14 | Advanced Cardiovascular Systems, Inc. | Fixed-wire dilatation catheter with rotatable balloon assembly |
| WO1995011055A1 (en) * | 1993-10-22 | 1995-04-27 | Scimed Lifesystems, Inc. | Improved stent delivery apparatus and method |
| CN201572415U (en) * | 2009-12-10 | 2010-09-08 | 杜惠敏 | Uterus dilating rod |
| US20120136385A1 (en) * | 2010-11-16 | 2012-05-31 | Cully Edward H | Fenestration devices, systems, and methods |
| CN205235141U (en) * | 2015-12-29 | 2016-05-18 | 赵冰 | Uterus cervical dilator |
| CN205759034U (en) * | 2016-08-24 | 2016-12-07 | 杨焱 | The anti-blocking smoothening device of peritoneal cavity drainage tube |
| CN209967370U (en) * | 2018-08-02 | 2020-01-21 | 山东威高集团医用高分子制品股份有限公司 | dilation introducer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110464424A (en) * | 2019-07-30 | 2019-11-19 | 杭州市第三人民医院 | A kind of urological department lithangiuria crushed stone |
| CN110464424B (en) * | 2019-07-30 | 2020-06-12 | 杭州市第三人民医院 | Urological department lithangiuria stone crushing structure |
| WO2023217976A1 (en) * | 2022-05-12 | 2023-11-16 | Boston Scientific Medical Device Limited | Apparatus for biological tissue puncture expansion |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109107023B (en) | 2024-08-20 |
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