CN106725768B - Device is split in a kind of expansion of tumour - Google Patents
Device is split in a kind of expansion of tumour Download PDFInfo
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- CN106725768B CN106725768B CN201710066815.3A CN201710066815A CN106725768B CN 106725768 B CN106725768 B CN 106725768B CN 201710066815 A CN201710066815 A CN 201710066815A CN 106725768 B CN106725768 B CN 106725768B
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- utricule
- sheath
- tumour
- injection pipe
- injection
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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
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
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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
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
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- Engineering & Computer Science (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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- Reproductive Health (AREA)
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- Pathology (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
Abstract
The invention discloses a kind of expansions of tumour to split device, including：Sheath and puncture needle；Puncture needle includes needle body and the handle that is connect with the needle body, and the one end of puncture needle far from handle is equipped with syringe needle；Sheath is socketed on needle body outer wall, and the length of needle body is more than the length of sheath；Sheath includes the cystic fluid outflow end to connect with handle, and the cystic fluid to connect with syringe needle flows into end；Sheath flows into end close to cystic fluid and is equipped with the first utricule, the second utricule and third utricule, and the first utricule, the second utricule and third utricule are sheathed on sheath tube outer surface successively.The embodiment of the present invention is clamped tumour film by the first utricule and third utricule, it prevents from tumour expansion from splitting device to fall off in use, and tumour film is burst by the second utricule, second utricule generates tumour film certain pressure, play anastalsis, there is certain expansion to act on fistulization oral simultaneously, prevents fistulization oral to be closed, to prevent tumour from recurring in situ.
Description
Technical field
The present invention relates to the field of medical instrument technology, more particularly to device is split in a kind of tumour expansion.
Background technology
Tumour is a kind of benign disease, be long internal organs a certain in vivo, cryptomere Benign Nodule.It has sack cavity structure,
There is cyst wall outside, inside there is liquid or other compositions, skin can be derived from, can also derive from mesenchymal tissue.Tumour can be opened at present
Window drainage treatment or stripping treatment, can also remove the cyst under laparoscope.But hand cannot be carried out based on patient body reason
Art or according to the state of an illness other consider and without performing the operation, such as the easy recurrence of hepatorenal cyst heredity cystic disorders,
It is to carry out tapping to tumour under the guide of B ultrasound that expectant treatment, the mode of expectant treatment, which can only be taken, is then used anhydrous
Ethyl alcohol carries out hardening treating.
Clinical at present still to use conventional method, the equipment that conventional method uses is mainly puncture needle, sebific duct, syringe etc.；
Two people are needed to be used cooperatively in operation, wherein a people repeatedly aspirates cystic fluid, another people one with 50ml syringes
Hand fixes puncture needle, another hand haemostatic clamp repeatedly clamp sebific duct to ensure the injection and maintenance of absolute ethyl alcohol.
Process complexity is not used only in the above conventional method, and puncture needle is easy to fall off in the course of surgery, and if
Puncture needle falls off, and is not easy to be punctured again；In addition the easy bleeding at the cut for puncturing tumour, the fistulization oral after pulling out puncture needle
It is easily closed and tumour is caused to occur again.
Invention content
The goal of the invention of the present invention is to provide a kind of tumour expansion and splits device, with solve puncture needle in the course of surgery be easy it is de-
Fall, puncture tumour cut at easy bleeding and after pulling out puncture needle fistulization oral easily be closed and cause tumour to occur again
Problem.
According to an embodiment of the invention, it provides a kind of expansion of tumour and splits device, including：Sheath and puncture needle；
The puncture needle includes needle body and the handle that is connect with the needle body, and the puncture needle is far from institute
The one end for stating handle is equipped with syringe needle；
The sheath is socketed on the needle body outer wall, and the length of the needle body is more than the length of the sheath
Degree；
The sheath includes the cystic fluid outflow end to connect with the handle, and the tumour liquid stream to connect with the syringe needle
Enter end；
The sheath close to the cystic fluid flow into end be equipped with the first utricule, the second utricule and third utricule, described first
Utricule, second utricule and the third utricule are sheathed on the sheath tube outer surface successively；
The sheath is equipped with the first injection pipe, the second injection pipe and third injection pipe close to the cystic fluid outflow end,
First injection pipe, second injection pipe and the third injection pipe are vertical with the needle body respectively；
The sheath further includes sheath tube wall, and the sheath pars intramuralis is equipped with the first injection channel, the second injection channel and the
Three injection channels；
First utricule is connected by first injection channel with first injection pipe, and second utricule is logical
Second injection channel is crossed with second injection pipe to be connected, the third utricule by the third enter channel with it is described
Third injection pipe is connected.
Preferably, the tumour expansion is split in device, and first utricule is concave-concave with shape of the third utricule after full
Discoid, first utricule after filling is in contact with the third utricule.
Preferably, the tumour expansion is split in device, and the shape after second utricule is full is American football shape, the institute after filling
First utricule and the third utricule after stating the second utricule and filling are in contact.
Preferably, the tumour expansion is split in device, and the cystic fluid flows into end and is equipped with several liquid-leaking nozzles.
Preferably, the tumour expansion is split in device, and the sheath further includes the rubber plug to match with the cystic fluid outflow end,
The rubber plug is connected with the cystic fluid outflow end.
Preferably, tumour expansion is split in device, first injection pipe and first injection channel junction, described the
Two injection pipes are all provided with second injection channel junction and the third injection pipe with third injection channel junction
There is check (non-return) valve.
Preferably, the tumour expansion is split in device, and the outer diameter of the puncture needle is less than the internal diameter of the sheath.
Preferably, the tumour expansion is split in device, and the diameter of the handle is more than the internal diameter of the sheath.
By above technical scheme it is found that an embodiment of the present invention provides a kind of expansions of tumour to split device, including：Sheath and puncture
Needle；The puncture needle includes needle body and the handle that is connect with the needle body, and the puncture needle is far from the hand
One end of handle is equipped with syringe needle；The sheath is socketed on the needle body outer wall, and the length of the needle body is more than institute
State the length of sheath；The sheath includes the cystic fluid outflow end to connect with the handle, and the capsule to connect with the syringe needle
Swollen liquid stream enters end；The sheath flows into end close to the cystic fluid and is equipped with the first utricule, the second utricule and third utricule, and described the
One utricule, second utricule and the third utricule are sheathed on the sheath tube outer surface successively；The sheath is close to the capsule
Swollen liquid stream outlet is equipped with the first injection pipe, the second injection pipe and third injection pipe, first injection pipe, second injection
Pipe and the third injection pipe are vertical with the needle body respectively；The sheath further includes sheath tube wall, the sheath tube wall
It is internally provided with the first injection channel, the second injection channel and third injection channel；First utricule is injected by described first
Channel is connected with first injection pipe, and second utricule passes through second injection channel and the second injection pipe phase
Connection, the third utricule enter channel by the third and are connected with the third injection pipe.The embodiment of the present invention passes through
One utricule and third utricule clamp tumour film, prevent tumour expansion from splitting device and fall off in use, and pass through the second utricule
Tumour film is burst, the second utricule generates tumour film certain pressure, plays anastalsis, while having certain expansion to fistulization oral
Effect, prevents fistulization oral to be closed, to prevent tumour from recurring in situ.
Description of the drawings
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the present invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is that the tumour after a kind of utricule shown in the embodiment of the present invention is full expands the structural schematic diagram for splitting device；
Fig. 2 is that the tumour that a kind of utricule shown in the embodiment of the present invention does not fill expands the structural schematic diagram for splitting device；
Fig. 3 is that the tumour after a kind of extraction puncture needle shown in the embodiment of the present invention expands the structural schematic diagram for splitting device；
Fig. 4 is that a kind of tumour shown in the embodiment of the present invention expands the partial enlarged view for splitting device；
Fig. 5 is the sectional view of the sheath tube wall shown in the embodiment of the present invention.
It illustrates：
Wherein, 1- sheaths, 2- puncture needles, 11- cystic fluids inflow end, 12- cystic fluid outflow ends, the first utricules of 131-,
The second utricules of 132-, 133- third utricules, the first injection pipes of 141-, the second injection pipes of 142-, 143- third injection pipes, 15- glue
Plug, 16- check (non-return) valves, 17- sheath tube walls, the first injection channels 171-, the second injection channels 172-, 173- thirds injection channel, 21-
Needle body, 22- handles, 23- syringe needles.
Specific implementation mode
Referring to Fig. 1 to Fig. 5, an embodiment of the present invention provides a kind of expansions of tumour to split device, including：Sheath 1 and puncture needle 2；
The puncture needle 2 includes needle body 21 and the handle 22 being connect with the needle body 21, the puncture
The one end of needle 2 far from the handle 22 is equipped with syringe needle 23；
The sheath 1 is socketed on 21 outer wall of the needle body, and the length of the needle body 21 is more than the sheath
The length of pipe 1；
The sheath 1 includes the cystic fluid outflow end 12 to connect with the handle 22, and connect with the syringe needle 23
Cystic fluid flows into end 11；
The sheath 1 flows into end 11 close to the cystic fluid and is equipped with the first utricule 131, the second utricule 132 and third utricule
133, first utricule 131, second utricule 132 and the third utricule 133 are sheathed on the appearance of the sheath 1 successively
Face；
The sheath 1 is equipped with the first injection pipe 141, the second injection pipe 142 and the close to the cystic fluid outflow end 12
Three injection pipes 143, first injection pipe 141, second injection pipe 142 and the third injection pipe 143 respectively with institute
It is vertical to state needle body 21；
The sheath 1 further includes sheath tube wall 17, and the sheath tube wall 17 is internally provided with the injection of the first injection channel 171, second
Channel 172 and third injection channel 173；
First utricule 131 is connected by first injection channel 171 with first injection pipe 141, described
Second utricule 132 is connected by second injection channel 172 with second injection pipe 142, and the third utricule 133 is logical
It crosses the third and enters channel 173 and be connected with the third injection pipe 143.
In use, device is split using the tumour expansion for packaging puncture needle 2 to be punctured, wait puncturing under the guiding of B ultrasound
The gas or liquid of designated volume are filled with after into tumour to third utricule 133 first, under the detection of B ultrasound gently described in pumpback
Device is split in tumour expansion, and the third utricule 133 after full stops pumpback with tumour film after；First utricule 131 is filled with specific
The gas or liquid of volume, until generating clamping action to tumour film；Puncture needle is extracted, cystic fluid will be from the channel of sheath 2
Interior outflow, or cystic fluid is aspirated in the channel of sheath 2 using syringe, drain cystic fluid；Second utricule 132 is filled with
The gas or liquid of designated volume.When maintaining one section of the first utricule 131, the second utricule 132 and 133 expanded state of third utricule
Between, after fistulization oral fully expands, the gas of the second utricule 132, the first utricule 131 and third utricule 133 is discharged successively respectively
Or liquid, finally take out sheath 1.
By above technical scheme it is found that the embodiment of the present invention is pressed from both sides tumour film by the first utricule 131 and third utricule 133
It handles, prevents tumour expansion from splitting device and fall off in use, tumour film is burst by the second utricule 132, the second utricule 132 is to capsule
Swollen film generates certain pressure, plays the role of anastalsis, while having certain expansion to fistulization oral, fistulization oral is prevented to be closed, from
And prevent the recurrence again of tumour.
Preferably, tumour expansion is split in device, shape of first utricule 131 with the third utricule 133 after full
Shape is that concave-concave is discoid, and first utricule 131 after filling is in contact with the third utricule 133.First utricule 131 and
It can play the role of clamping to tumour film after three utricules 133 are full, prevent sheath 1 from falling off.Concave-concave disc-shape is also intermediate
Second utricule provides space, bursts tumour film convenient for the second utricule, plays certain anastalsis, and fistulization oral is effectively prevent to close
It closes, prevents tumour from recurring again.
Preferably, tumour expansion is split in device, and the shape after second utricule 132 is full is American football shape, is filled
Second utricule 132 afterwards with it is full after first utricule 131 and the third utricule 133 be in contact.Rugby
Second utricule of shape bursts tumour film, plays certain anastalsis, and fistulization oral is effectively prevent to be closed, and prevents tumour in situ
Recurrence.
Preferably, tumour expansion is split in device, and the cystic fluid flows into end 11 and is equipped with several liquid-leaking nozzles 111.Cystic fluid
Flow into end 11 main opening may cystic fluid outflow after or other reasons be blocked, cause cystic fluid not flow out normally,
And liquid-leaking nozzle 111 can provide other flow pass for cystic fluid, promote cystic fluid all to excrete, prevent tumour cell
Regeneration and cystic disorders recur in situ.
Preferably, tumour expansion is split in device, and the sheath 1 further includes matching with the cystic fluid outflow end 12
Rubber plug 15, the rubber plug 15 are connected with the cystic fluid outflow end 12.Rubber plug 15 can close sheath 2, main to use
Closing under non-drawing liquid state avoids liquid from arbitrarily flowing out or the entrance of germ, prevents patient from infecting germ, ensures patient's hand
Art carries out safely.
Preferably, the described tumour expansion is split in device, first injection pipe 141 and first injection channel junction,
Second injection pipe 142 and second injection channel junction and the third injection pipe 143 and third injection are logical
Road junction is equipped with check (non-return) valve 16.Check (non-return) valve 16 can control the liquid of injection or gas and will not freely leak out, and protect simultaneously
The first utricule 131 of card input, the second utricule 132 and the liquid of third utricule 133 or the constant volume of gas, have one to tumour film
Fixed supporting role.
Preferably, tumour expansion is split in device, and the outer diameter of the puncture needle 2 is less than the internal diameter of the sheath 1.Puncture needle
The internal diameter that 2 outer diameter is less than sheath 1 can facilitate puncture needle 2 to pass in and out sheath 1, and operation is smoothly completed convenient for medical worker.
Preferably, tumour expansion is split in device, and the diameter of the handle 22 is more than the internal diameter of the sheath 1.Handle 22
Diameter be more than sheath 1 internal diameter can play the role of restriction to position of the puncture needle 2 in sheath 1, prevent due to medical matters
Personnel's rubber sleeve overexerts, and so that puncture is needled into tumour too deep and hurt organ surface, unnecessary wound is caused to internal organs
Evil.Larger-diameter handle 22 facilitates medical worker to be pierced into and extract puncture needle 2 simultaneously.
Optionally, inject the first utricule 131, the second utricule 132 and third utricule 133 is clean aseptic gas.Nothing
Bacterium gaseous mass is lighter, is conveniently filled with utricule, while it is short to be discharged the utricule time, has saved operating time.
Optionally, inject the first utricule 131, the second utricule 132 and third utricule 133 is physiological saline.Inject physiology
The utricule of brine is not easy to be compressed, and has good anti-pressure ability；Contribute to the first utricule 131 and third utricule 133 that capsule is clamped
Swollen film；Contribute to the second utricule 132 to burst tumour film, fistulization oral is effectively prevent to be closed, prevents the recurrence of tumour in situ.
Preferably, the first injection channel 171, the second injection channel 172 and third injection channel 173 are microporous pipes.Using
Microporous pipe is convenient for the injection and discharge of gas or liquid, while the space for preventing injection channel from occupying sheath tube wall 17 influences too much
The insertion and extraction of puncture needle and the outflow of cystic fluid are smoothed out convenient for operation.
Preferably, it is softer material, such as silica gel close to the material of check (non-return) valve 16.Material close to check (non-return) valve 16 uses
Softer material can be in order in turning gas or liquid injection and discharge.
Preferably, the material of the first utricule 131 and third utricule 133 uses non-compliant material.Non-compliant material is specified
Pressure limit interior energy keeps its design shape and size.Non-compliant material can be nylon, PET (Polyethylene
Terephthalate, polyethylene terephthalate), contribute to the first utricule 131 and third utricule 133 that tumour film is clamped.
Preferably, the second utricule 132 is using the non-compliant material with certain intensity, such as nylon, PET.Second utricule
132, using the non-compliant material with certain intensity, can keep its design shape and size within the scope of rated pressure,
Tumour film is burst convenient for the second utricule 132.
By above technical scheme it is found that an embodiment of the present invention provides a kind of expansions of tumour to split device, including：Sheath 1 and puncture
Needle 2；The puncture needle 2 includes needle body 21 and the handle 22 being connect with the needle body 21, and the puncture needle 2 is remote
One end from the handle 22 is equipped with syringe needle 23；The sheath 1 is socketed on 21 outer wall of the needle body, the puncture needle master
The length of body 21 is more than the length of the sheath 1；The sheath 1 includes the cystic fluid outflow end 12 to connect with the handle 22,
And the cystic fluid to connect with the syringe needle 23 flows into end 11；The sheath 1 flows into end 11 close to the cystic fluid and is equipped with first
Utricule 131, the second utricule 132 and third utricule 133, first utricule 131, second utricule 132 and the third capsule
Body 133 is sheathed on the outer surface of the sheath 1 successively；The sheath 1 is equipped with the first injection close to the cystic fluid outflow end 12
Pipe 141, the second injection pipe 142 and third injection pipe 143, first injection pipe 141, second injection pipe 142 and
The third injection pipe 143 is vertical with the needle body 21 respectively；The sheath 1 further includes sheath tube wall 17, the sheath
Wall 17 is internally provided with the first injection channel 171, the second injection channel 172 and third injection channel 173；First utricule 131
It is connected with first injection pipe 141 by first injection channel 171, second utricule 132 passes through described second
Injection channel 172 is connected with second injection pipe 142, and the third utricule 133 enters channel 173 and institute by the third
Third injection pipe 143 is stated to be connected.The embodiment of the present invention is clamped tumour film by the first utricule 131 and third utricule 133,
It prevents from tumour expansion from splitting device to fall off in use, tumour film is burst by the second utricule 132, the second utricule 132 is to tumour film
Certain pressure is generated, plays the role of anastalsis, while having certain expansion to fistulization oral, fistulization oral is prevented to be closed, to anti-
The only recurrence again of tumour.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to its of the present invention
Its embodiment.This application is intended to cover the present invention any variations, uses, or adaptations, these modifications, purposes or
Person's adaptive change follows the general principle of the present invention and includes undocumented common knowledge in the art of the invention
Or conventional techniques.The description and examples are only to be considered as illustrative, and true scope and spirit of the invention are by following
Claim is pointed out.
It should be understood that the invention is not limited in the precision architectures for being described above and being shown in the accompanying drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present invention is limited only by the attached claims.
Claims (6)
1. device is split in a kind of tumour expansion, which is characterized in that including：Sheath (1) and puncture needle (2)；
The puncture needle (2) includes needle body (21) and the handle (22) being connect with the needle body (21), described
The one end of puncture needle (2) far from the handle (22) is equipped with syringe needle (23)；
The sheath (1) is socketed on the needle body (21) outer wall, and the length of the needle body (21) is more than described
The length of sheath (1)；
The sheath (1) includes the cystic fluid outflow end (12) to connect with the handle (22), and with the syringe needle (23) phase
The cystic fluid connect flows into end (11)；
The sheath (1) flows into end (11) close to the cystic fluid and is equipped with the first utricule (131), the second utricule (132) and third
Utricule (133), first utricule (131), second utricule (132) and the third utricule (133) are sheathed on institute successively:
State sheath (1) outer surface；
The sheath (1) close to the cystic fluid outflow end (12) be equipped with the first injection pipe (141), the second injection pipe (142) with
And third injection pipe (143), first injection pipe (141), second injection pipe (142) and the third injection pipe
(143) vertical with the needle body (21) respectively；
The sheath (1) further includes sheath tube wall (17), and the sheath tube wall (17) is internally provided with the first injection channel (171), second
Injection channel (172) and third injection channel (173)；
First utricule (131) is connected by first injection channel (171) with first injection pipe (141), institute
It states the second utricule (132) by second injection channel (172) to be connected with second injection pipe (142), the third
Utricule (133) is connected by the third injection channel (173) with the third injection pipe (143)；
First utricule (131) after full and third utricule (133) shape after filling are that concave-concave is discoid, are filled
First utricule (131) afterwards is in contact with the third utricule (133) after filling；
The second utricule (132) shape after full is American football shape, second utricule after filling with it is full after institute
The third utricule (133) after stating the first utricule (131) and filling is in contact.
2. device is split in tumour expansion according to claim 1, which is characterized in that the cystic fluid flows into end (11) and is equipped with several leakages
Fluid apertures (111).
3. device is split in tumour according to claim 1 expansion, which is characterized in that the sheath (1) further includes and the cystic fluid
The rubber plug (15) that outflow end (12) matches, the rubber plug (15) are connected with the cystic fluid outflow end (12).
4. device is split in tumour expansion according to claim 1, which is characterized in that first injection pipe (141) and described first
Injection channel junction, second injection pipe (142) and second injection channel junction and the third injection pipe
(143) it is equipped with check (non-return) valve (16) with third injection channel junction.
5. device is split in tumour expansion according to claim 1, which is characterized in that the outer diameter of the puncture needle (2) is less than the sheath
Manage the internal diameter of (1).
6. device is split in tumour expansion according to claim 1, which is characterized in that the diameter of the handle (22) is more than the sheath
(1) internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710066815.3A CN106725768B (en) | 2017-02-07 | 2017-02-07 | Device is split in a kind of expansion of tumour |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710066815.3A CN106725768B (en) | 2017-02-07 | 2017-02-07 | Device is split in a kind of expansion of tumour |
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| Publication Number | Publication Date |
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| CN106725768A CN106725768A (en) | 2017-05-31 |
| CN106725768B true CN106725768B (en) | 2018-09-14 |
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| CN201710066815.3A Expired - Fee Related CN106725768B (en) | 2017-02-07 | 2017-02-07 | Device is split in a kind of expansion of tumour |
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| CN109846583A (en) * | 2019-03-27 | 2019-06-07 | 吴忠隐 | A kind of aortic stents window controlling system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206995317U (en) * | 2017-02-07 | 2018-02-13 | 中国人民解放军第三军医大学第二附属医院 | A kind of tumour, which expands, splits device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2478555Y (en) * | 2001-03-21 | 2002-02-27 | 白文庆 | Multi-functional cystis puncturing needle |
| JP2004290488A (en) * | 2003-03-27 | 2004-10-21 | Sumitomo Bakelite Co Ltd | Puncture sucker |
| CN204351908U (en) * | 2014-12-24 | 2015-05-27 | 郭亮生 | Cyst puncture suction device |
| CN205434471U (en) * | 2015-12-29 | 2016-08-10 | 北京航天卡迪技术开发研究所 | Cyst aspirator |
| CN106139266B (en) * | 2016-07-21 | 2019-01-04 | 中国人民解放军第三军医大学第二附属医院 | Device for pseudocyst of auricle continuous negative pressure suction treatment |
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| CN206995317U (en) * | 2017-02-07 | 2018-02-13 | 中国人民解放军第三军医大学第二附属医院 | A kind of tumour, which expands, splits device |
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