CN109999316A - A kind of blood vessel microtubular with developing mark function - Google Patents
A kind of blood vessel microtubular with developing mark function Download PDFInfo
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- CN109999316A CN109999316A CN201910354091.1A CN201910354091A CN109999316A CN 109999316 A CN109999316 A CN 109999316A CN 201910354091 A CN201910354091 A CN 201910354091A CN 109999316 A CN109999316 A CN 109999316A
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- fixedly connected
- hole
- guide
- blood vessel
- sleeve body
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- 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
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
-
- 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
- A61M25/0043—Catheters; Hollow probes characterised by structural features
-
- 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
- A61M25/0068—Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
- A61M25/007—Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked
-
- 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
- A61M2025/0008—Catheters; Hollow probes having visible markings on its surface, i.e. visible to the naked eye, for any purpose, e.g. insertion depth markers, rotational markers or identification of type
-
- 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
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M2025/0057—Catheters delivering medicament other than through a conventional lumen, e.g. porous walls or hydrogel coatings
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention discloses a kind of blood vessel microtubulars with developing mark function, including outer sleeve body, fixing layer, Marking ring, catheter guide wire, fixed ring, articulamentum, interior tube layer, connector, guide sleeve body, guide hole, inner conical drogue, taper hole, intercommunicating pore, protrusion and guide groove etc.；The present invention have it is structurally reasonable it is simple, production cost is low, easy for installation, here there is Marking ring in transparent jacket sheets body following settings, consequently facilitating the position to export head positions, designated position can be conducted drugs to by, which also ensuring that, carries out the effect that treatment improves treatment；Spiral-shaped guide groove is equipped in the present invention in interior tube layer inner wall and also just improves the effect used so as to avoid drug adhesion on interior tube layer inner wall；The multiple delivery outlets one and delivery outlet two being arranged in the present invention, to avoid the blocking of delivery outlet, lesion can be conducted drugs to without intensified pressure by, which also ensuring that, carries out the effect that treatment improves treatment.
Description
Technical field:
The present invention relates to microtubular technical field, in particular to a kind of blood vessel microtubular with developing mark function.
Background technique:
In the clinical treatment of many diseases (such as hemangioma, blood loss and tumour), it can all need to carry out bolt to target blood
Plug.In cancer treatment, it is especially difficult to touch and the tumour for the excision that can not perform the operation, the blocking of blood supply blood flow is almost unique
Method.However it is a very difficult operation that guidance microtubular walks arrival target tumor in the blood vessels.To overcome this tired
Difficulty, medical worker use many different methods in the designing and producing of microtubular.But works as and need drug, therapeutic combination
When the lesions position that object or other treatment article are treated needed for being sent to, at present on the market common microtubular still have it is easy
The case where blocking, needs that therapeutant targeted site could be sent to using higher pressure.
Summary of the invention:
The object of the invention is that it is micro- to provide a kind of blood vessel with developing mark function to solve the above-mentioned problems
Conduit solves the problems in background technique.
To solve the above-mentioned problems, the present invention provides a kind of technical solutions: a kind of blood vessel with developing mark function
Microtubular, innovative point are: including outer sleeve body, fixing layer, Marking ring, catheter guide wire, fixed ring, articulamentum, interior tube layer, company
Connector, guide sleeve body, guide hole, inner conical drogue, taper hole, intercommunicating pore, protrusion and guide groove；Outside the outer sleeve body interior surface and fixing layer
Surface is fixedly connected；The Marking ring be it is several, the Marking ring in it is laterally homogeneous arrangement be fixedly connected on fixing layer external table
In face；The fixed ring be it is several, the fixed ring in it is laterally homogeneous arrangement be fixedly connected in fixing layer；The catheter guide wire
To be several, the catheter guide wire uniformly it is rounded arrangement be fixedly connected in fixing layer, the catheter guide wire respectively with it is corresponding
Fixed ring is fixedly connected；The articulamentum outer surface is fixedly connected in fixing layer interior surface, table inside the articulamentum
Face is fixedly connected with interior tube layer outer surface；Guide groove is equipped in said inner tube layer interior surface；The connector right hand external with
Interior tube layer inside left is fixedly connected, a left side for step surface and outer sleeve body, fixing layer, articulamentum and interior tube layer on the right side of the connector
End face is connected, and intercommunicating pore is equipped with inside the connector；Inner wall is equipped with protrusion on the right side of the intercommunicating pore；The guide sleeve body is solid
Surely be connected on the right side of intercommunicating pore on inner wall, guide hole be equipped with inside the guide sleeve body, on the left of the guide sleeve body at outer ledge with it is convex
Right side is played to be fixedly connected；The inner conical drogue is fixedly connected on intercommunicating pore center of inside, at the inner conical drogue right side edge with protrusion
Left side is fixedly connected, and the inner conical drogue right side is fixedly connected with guide sleeve body left side, and taper hole is equipped with inside the inner conical drogue；Institute
State opening and opening in communication on the left of intercommunicating pore on the left of taper hole, opening in communication on the left of the taper hole right openings and guide hole；Institute
State guide hole right openings and interior tube layer inside left opening in communication.
Preferably, further including cutting ferrule, fixture block, link block, extending seal wire, export head, cylinder face, delivery outlet one, circular arc
Face, delivery outlet two and anti-block apparatus；The cutting ferrule is fixedly connected in fixing layer right end, and the cutting ferrule left end and catheter guide wire are left
End is fixedly connected；The link block is fixedly connected on the left of export head in step surface, fixed on the upside of the link block left side to connect
It is connected to fixture block, several extension seal wires are uniformly fixedly connected on the link block right side；On the left of the fixture block and on the right side of cutting ferrule
Card slot is connected；The extension seal wire is uniformly located in export head left side wall；Outer circle and fixing layer right side on the left of the export head
Inside is fixedly connected, and is fixedly connected with anti-block apparatus in opening on the left of the export head；The cylinder face is located at an export head left side
Outside side, each and every one several delivery outlets one are uniformly provided in the cylinder face；The arc surface is located at export head right hand external, described
Several delivery outlets two are uniformly provided in arc surface；The delivery outlet one and two inside of delivery outlet are connected with export head inside
It is logical.
Preferably, the outer sleeve body is made of clear material.
Preferably, the Marking ring is gold material.
Preferably, the guide hole right-side outlet is towards interior tube layer inner wall.
Preferably, the taper hole is taper hole left large and right small.
Preferably, the guide groove is spiral-shaped guide groove.
Preferably, the delivery outlet one and delivery outlet two are taper hole.
Preferably, the anti-block apparatus specifically include shell, inner cavity, upper through-hole, upper fixing glue, upper elastic baffle, under
Through-hole, lower elastic baffle and lower fixing glue；The interior of shell is equipped with inner cavity；The inner cavity upper right side is equipped with upper through-hole, described
Inner cavity lower right side is equipped with lower through-hole；It is fixedly connected at upper through-hole right openings on the upside of the upper elastic baffle by upper fixing glue
Upside；Downside at lower through-hole right openings is fixedly connected on by lower fixing glue on the downside of the lower elastic baffle.
Beneficial effects of the present invention:
(1) present invention have it is structurally reasonable it is simple, production cost is low, easy for installation, set below transparent jacket sheets body here
That sets has Marking ring, consequently facilitating the position to export head positions, specific bit can be conducted drugs to by also ensuring that
It sets and carries out the effect that treatment improves treatment.
(2) spiral-shaped guide groove is equipped in the present invention in interior tube layer inner wall, so as to avoid drug adhesion in inner tube
On layer inner wall, the effect used is also just improved.
(3) the multiple delivery outlets one and delivery outlet two being arranged in the present invention also ensure that avoid the blocking of delivery outlet
Lesion, which can be conducted drugs to, without intensified pressure carries out the effect that treatment improves treatment.
(4) anti-block apparatus being arranged in the present invention can effectively avoid the drug reflux of output from causing into interior tube layer
Pollution, is in addition also avoided that blocking caused by drug reflux.
(5) the cylindrical frame structure that catheter guide wire and fixed ring form in the present invention, can greatly improve this microtubular makes
Performance.
Detailed description of the invention:
Detailed description will be given by the following detailed implementation and drawings by the present invention for ease of explanation,.
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is local connection schematic diagram of the invention.
Fig. 3 is the structural schematic diagram of anti-block apparatus.
1- outer sleeve body；2- fixing layer；3- Marking ring；4- catheter guide wire；5- fixed ring；6- articulamentum；Tube layer in 7-；8- connects
Connector；9- guide sleeve body；10- guide hole；11- inner conical drogue；12- taper hole；13- intercommunicating pore；14- protrusion；15- guide groove；16- cutting ferrule；17-
Fixture block；18- link block；19- extends seal wire；20- export head；21- cylinder face；22- delivery outlet one；23- arc surface；24- output
Hole two；25- anti-block apparatus；251- shell；The inner cavity 252-；The upper through-hole of 253-；The upper fixing glue of 254-；The upper elastic baffle of 255-；
256- lower through-hole；Elastic baffle under 257-；Fixing glue under 258-.
Specific embodiment:
As depicted in figs. 1 and 2, present embodiment uses following technical scheme: a kind of with developing mark function
Blood vessel microtubular, including outer sleeve body 1, fixing layer 2, Marking ring 3, catheter guide wire 4, fixed ring 5, articulamentum 6, interior tube layer 7, connection
First 8, guide sleeve body 9, guide hole 10, inner conical drogue 11, taper hole 12, intercommunicating pore 13, protrusion 14 and guide groove 15；The 1 inside table of outer sleeve body
Face is fixedly connected with 2 outer surface of fixing layer；The Marking ring 3 be it is several, the Marking ring 3 is in the fixed company of laterally homogeneous arrangement
It connects in 2 outer surface of fixing layer；The fixed ring 5 be it is several, the fixed ring 5 in it is laterally homogeneous arrangement be fixedly connected on
In given layer 2；The catheter guide wire 4 be it is several, uniformly rounded arrangement is fixedly connected in fixing layer 2 catheter guide wire 4, institute
Catheter guide wire 4 is stated to be fixedly connected with corresponding fixed ring 5 respectively；6 outer surface of articulamentum is fixedly connected in fixing layer 2
On portion surface, 6 interior surface of articulamentum is fixedly connected with interior 7 outer surface of tube layer；It is set in 7 interior surface of said inner tube layer
There is guide groove 15；8 right hand external of connector is fixedly connected with interior 7 inside left of tube layer, the 8 right side step surface of connector with
Outer sleeve body 1, fixing layer 2, articulamentum 6 are connected with the left side of interior tube layer 7, and intercommunicating pore 13 is equipped with inside the connector 8；Institute
It states 13 right side inner wall of intercommunicating pore and is equipped with protrusion 14；The guide sleeve body 9 is fixedly connected on 13 right side inner wall of intercommunicating pore, described to lead
It is equipped with guide hole 10 inside body 9, is fixedly connected at the 9 left side outer ledge of guide sleeve body with 14 right side of protrusion；The inner conical drogue
11 are fixedly connected on 13 center of inside of intercommunicating pore, are fixedly connected at 11 right side edge of inner conical drogue with 14 left side of protrusion, described
11 right side of inner conical drogue is fixedly connected with 9 left side of guide sleeve body, and taper hole 12 is equipped with inside the inner conical drogue 11；The taper hole 12 is left
Side opening and 13 left side opening in communication of intercommunicating pore, 12 right openings of taper hole and 10 left side opening in communication of guide hole；It is described
10 right openings of guide hole and interior 7 inside left opening in communication of tube layer.
Wherein, further include cutting ferrule 16, fixture block 17, link block 18, extend seal wire 19, export head 20, cylinder face 21, delivery outlet
One 22, arc surface 23, delivery outlet 2 24 and anti-block apparatus 25；The cutting ferrule 16 is fixedly connected in 2 right end of fixing layer, the card
16 left ends are covered to be fixedly connected with 4 left end of catheter guide wire；The link block 18 is fixedly connected in 20 left side step surface of export head, institute
It states and is fixedly connected with fixture block 17 on the upside of 18 left side of link block, be uniformly fixedly connected with several prolong on 18 right side of link block
Stretch seal wire 19；17 left side of fixture block is connected with 16 right side card slot of cutting ferrule；The extension seal wire 19 is uniformly located at export head 20
In left side wall；The 20 left side outer circle of export head is fixedly connected with 2 right side inside of fixing layer, the 20 left side opening of export head
In be fixedly connected with anti-block apparatus 25；The cylinder face 21 is located at 20 left hand external of export head, uniformly sets in the cylinder face 21
There are each and every one several delivery outlets 1；The arc surface 23 is located at 20 right hand external of export head, is uniformly provided in the arc surface 23
Several delivery outlets 2 24；The delivery outlet 1 and 2 24 inside of delivery outlet are connected with inside export head 20.
Wherein, the outer sleeve body 1 is made of clear material；The Marking ring 3 is gold material；Go out on the right side of the guide hole 10
Mouthful towards interior 7 inner wall of tube layer；The taper hole 12 is taper hole left large and right small；The guide groove 15 is spiral-shaped guide groove；It is described
Delivery outlet 1 and delivery outlet 2 24 are taper hole.
As shown in figure 3, the anti-block apparatus 25 specifically includes shell 251, inner cavity 252, upper through-hole 253, upper fixing glue
254, upper elastic baffle 255, lower through-hole 256, lower elastic baffle 257 and lower fixing glue 258；It is equipped with inside the shell 251 interior
Chamber 252；252 upper right side of inner cavity is equipped with upper through-hole 253, and 252 lower right side of inner cavity is equipped with lower through-hole 256；The upper bullet
Property the upside of baffle 255 upside at upper 253 right openings of through-hole is fixedly connected on by upper fixing glue 254；The lower elastic baffle
257 downsides are fixedly connected on downside at 256 right openings of lower through-hole by lower fixing glue 258.
Use state of the invention are as follows: the present invention have it is structurally reasonable it is simple, production cost is low, easy for installation, exist here
1 following settings of transparent jacket sheets body has Marking ring 3, consequently facilitating positioning to the position of export head 20, also ensures that energy
It enough conducts drugs to designated position and carries out the effect that treatment improves treatment, spiral shape is in addition equipped in interior 7 inner wall of tube layer
The guide groove of shape also just improves the effect used so as to avoid drug adhesion on interior 7 inner wall of tube layer, set in addition more
A delivery outlet 1 and delivery outlet 2 24, to avoid the blocking of delivery outlet, also ensuring that can be incited somebody to action without intensified pressure
Drug is transported to lesion and carries out the effect that treatment improves treatment, and anti-block apparatus 25 set in addition can be avoided effectively
The drug reflux of output is polluted into interior tube layer 7, is in addition also avoided that blocking caused by drug reflux, in addition catheter guide wire
4 and fixed ring 5 form cylindrical frame structure, the performance that this microtubular uses can be greatly improved.
In the description of invention, it is to be understood that term " coaxial ", " bottom ", " one end ", " top ", " middle part ",
The orientation or positional relationship of the instructions such as " other end ", "upper", " side ", " top ", "inner", " front ", " center ", " both ends " is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description invention and simplifies description, rather than indication or suggestion
Signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to hair
Bright limitation.
In invention unless specifically defined or limited otherwise, term " installation ", " setting ", " connection ", " fixation ", " rotation
Connect " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be
Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside element, unless otherwise restricted clearly, for the common skill of this field
For art personnel, concrete meaning of the above-mentioned term in invention can be understood as the case may be.
The advantages of basic principles and main features and invention of invention have been shown and described above, the technical staff of the industry
It should be appreciated that invention is not restricted to the described embodiments, the above embodiments and description only describe the originals of invention
Reason, under the premise of not departing from spirit and range, invention be will also have various changes and improvements, these changes and improvements are all fallen
Enter within the scope of claimed invention, invents claimed range and be defined by the appending claims and its equivalent thereof.
Claims (9)
1. a kind of blood vessel microtubular with developing mark function, it is characterised in that: including outer sleeve body (1), fixing layer (2), mark
Remember ring (3), catheter guide wire (4), fixed ring (5), articulamentum (6), interior tube layer (7), connector (8), guide sleeve body (9), guide hole
(10), inner conical drogue (11), taper hole (12), intercommunicating pore (13), raised (14) and guide groove (15)；
Outer sleeve body (1) interior surface is fixedly connected with fixing layer (2) outer surface；
The Marking ring (3) be it is several, the Marking ring (3) in it is laterally homogeneous arrangement be fixedly connected on fixing layer (2) external table
In face；
The fixed ring (5) be it is several, the fixed ring (5) in it is laterally homogeneous arrangement be fixedly connected in fixing layer (2)；
The catheter guide wire (4) be it is several, the catheter guide wire (4) uniformly it is rounded arrangement be fixedly connected in fixing layer (2),
The catheter guide wire (4) is fixedly connected with corresponding fixed ring (5) respectively；
Articulamentum (6) outer surface is fixedly connected in fixing layer (2) interior surface, articulamentum (6) interior surface
It is fixedly connected with interior tube layer (7) outer surface；
Guide groove (15) are equipped in said inner tube layer (7) interior surface；
Connector (8) right hand external is fixedly connected with interior tube layer (7) inside left, step surface on the right side of the connector (8)
It is connected with the left side of outer sleeve body (1), fixing layer (2), articulamentum (6) and interior tube layer (7), is set inside the connector (8)
There are intercommunicating pore (13)；
Inner wall is equipped with raised (14) on the right side of the intercommunicating pore (13)；
The guide sleeve body (9) is fixedly connected on the right side of intercommunicating pore (13) on inner wall, and guide hole is equipped with inside the guide sleeve body (9)
(10), it is fixedly connected at outer ledge with raised (14) right side on the left of the guide sleeve body (9)；
The inner conical drogue (11) is fixedly connected on intercommunicating pore (13) center of inside, at inner conical drogue (11) right side edge with protrusion
(14) left side is fixedly connected, and inner conical drogue (11) right side is fixedly connected with guide sleeve body (9) left side, the inner conical drogue (11)
Inside is equipped with taper hole (12)；
Opening and opening in communication on the left of intercommunicating pore (13), taper hole (12) right openings and guide hole on the left of the taper hole (12)
(10) left side opening in communication；
Guide hole (10) right openings and interior tube layer (7) inside left opening in communication.
2. a kind of blood vessel microtubular with developing mark function according to claim 1, it is characterised in that: further include card
It covers (16), fixture block (17), link block (18), extend seal wire (19), export head (20), cylinder face (21), delivery outlet one (22), circle
Cambered surface (23), delivery outlet two (24) and anti-block apparatus (25)；
The cutting ferrule (16) is fixedly connected in fixing layer (2) right end, and cutting ferrule (16) left end and catheter guide wire (4) left end are solid
Fixed connection；
The link block (18) is fixedly connected on the left of export head (20) in step surface, solid on the upside of link block (18) left side
Surely it is connected with fixture block (17), is uniformly fixedly connected with several extension seal wires (19) on link block (18) right side；
It is connected on the left of the fixture block (17) with card slot on the right side of cutting ferrule (16)；
The extension seal wire (19) is uniformly located in export head (20) left side wall；
Outer circle is fixedly connected with internal on the right side of fixing layer (2) on the left of the export head (20), opening on the left of the export head (20)
Anti-block apparatus (25) are fixedly connected in place；
The cylinder face (21) is located at export head (20) left hand external, and several each and every one export is uniformly provided in the cylinder face (21)
Hole one (22)；
The arc surface (23) is located at export head (20) right hand external, is uniformly provided with several delivery outlets in the arc surface (23)
Two (24)；
It is connected with export head (20) inside inside the delivery outlet one (22) and delivery outlet two (24).
3. a kind of blood vessel microtubular with developing mark function according to claim 1, it is characterised in that: the housing
Body (1) is made of clear material.
4. a kind of blood vessel microtubular with developing mark function according to claim 1, it is characterised in that: the label
Ring (3) is gold material.
5. a kind of blood vessel microtubular with developing mark function according to claim 1, it is characterised in that: the guide hole
(10) right-side outlet is towards interior tube layer (7) inner wall.
6. a kind of blood vessel microtubular with developing mark function according to claim 1, it is characterised in that: the taper hole
It (12) is taper hole left large and right small.
7. a kind of blood vessel microtubular with developing mark function according to claim 1, it is characterised in that: the guide groove
It (15) is spiral-shaped guide groove.
8. a kind of blood vessel microtubular with developing mark function according to claim 2, it is characterised in that: the output
Hole one (22) and delivery outlet two (24) are taper hole.
9. a kind of blood vessel microtubular with developing mark function according to claim 2, it is characterised in that: described anti-blocking
Device (25) specifically includes shell (251), inner cavity (252), upper through-hole (253), upper fixing glue (254), upper elastic baffle
(255), lower through-hole (256), lower elastic baffle (257) and lower fixing glue (258)；
Inner cavity (252) are equipped with inside the shell (251)；
Inner cavity (252) upper right side is equipped with upper through-hole (253), and inner cavity (252) lower right side is equipped with lower through-hole (256)；
It is fixedly connected at upper through-hole (253) right openings on the upside of the upper elastic baffle (255) by upper fixing glue (254)
Side；
Under being fixedly connected at lower through-hole (256) right openings on the downside of the lower elastic baffle (257) by lower fixing glue (258)
Side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910354091.1A CN109999316B (en) | 2019-04-29 | 2019-04-29 | Blood vessel micro-catheter with developing and marking functions |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910354091.1A CN109999316B (en) | 2019-04-29 | 2019-04-29 | Blood vessel micro-catheter with developing and marking functions |
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| CN109999316B CN109999316B (en) | 2021-05-28 |
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