CN108295357A - Angiography catheter - Google Patents
Angiography catheter Download PDFInfo
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- CN108295357A CN108295357A CN201810257764.7A CN201810257764A CN108295357A CN 108295357 A CN108295357 A CN 108295357A CN 201810257764 A CN201810257764 A CN 201810257764A CN 108295357 A CN108295357 A CN 108295357A
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- head
- draught line
- angiography catheter
- pda
- contrast agent
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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
- A61M25/0043—Catheters; Hollow probes characterised by structural features
-
- 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
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
- A61B17/12109—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel
-
- 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
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
- A61M25/0133—Tip steering devices
- A61M25/0147—Tip steering devices with movable mechanical means, e.g. pull wires
-
- 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
-
- 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
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/04—Liquids
-
- 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
- A61M2210/12—Blood circulatory system
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Pulmonology (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Biophysics (AREA)
- Surgery (AREA)
- Mechanical Engineering (AREA)
- Reproductive Health (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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Abstract
This application discloses a kind of angiography catheters, for conveying contrast agent in PDA plugging device implant surgeries, including head, middle part and tail portion, and head connects and penetrates through with middle part, middle part is connected and is penetrated through with tail portion, middle part is hose, head is arcuate structure and is equipped with contrast agent liberation port, further include two draught lines to adjust the bending direction of angiography catheter, two draught lines are separately positioned on the both sides of conduit cavity, and one end is connect with middle part, and the other end is stretched out from tail portion, when pulling the first draught line, middle part drives head to curving；When pulling the second draught line, middle part drives head to another lateral bend.It so set, the curl direction of angiography catheter head end is adjustable, can be good at being fixed on ideal aorta interimage position, be conducive to PDA and develop；And only head end is equipped with contrast agent liberation port, contrast agent will not flow out from pulmonary artery end, PDA will not be interfered to develop, can see the concrete shape and size of PDA clearly, choose the PDA plugging devices of suitable types.
Description
Technical field
The present invention relates to the field of medical instrument technology, more specifically to a kind of angiography catheter.
Background technology
In recent years, due to the influence of the factors such as environment, radiation, heredity, the probability of neonatal morbidity rises year by year, especially
Congenital heart disease, wherein patent ductus arteriosus (Patent ductus arteriosus abbreviation PDA) baby's congenital heart
One of sick common type accounts for about the 15% of congenital heart disease sum.
Arterial duct is the normal blood flow channel between fetal period pulmonary artery and aorta originally, and artery is led soon after birth
Pipe is useless with being voluntarily to be closed；If arterial duct still continuous openness, as congenital heart disease after patient 1 years old：Arterial duct
Patent (PDA), and generate corresponding pathophysiological change.Therefore should perform a surgical operation, interrupt its abnormal blood flow.
The therapeutic modality of PDA first choices is percutaneous patent ductus arteriosus transcatheter occlusion, i.e., by the method for interventional treatment,
PDA plugging devices are implanted to arterial duct position is stifled to close arterial duct, to achieve the purpose that effect a radical cure PDA.Conventional is percutaneous dynamic
Arteries and veins patent ductus transcatheter occlusion needs to puncture femoral artery, is convenient for clearly showing that PDA with pigtail catheter row aorta radiography
It is operated in the selection of plugging device model and art.With the accumulation of experience and the raising of patient's interventional technique, currently, major part PDA
Femoral vein can only be punctured, be blocked from pulmonary artery side after PDA to Aortography, merely through intravenous route row PDA, it in this way can be with
It avoids puncturing the vascular complication that femoral artery is easier to appearance, and patient's postoperative bedrest is short, can effectively mitigate the discomfort of patient
Sense avoids thrombus complication caused by postoperative long period bed.
It is exactly to be passed through from pulmonary artery using pigtail catheter merely through one of successful key of intravenous route row PDA percutaneous transcatheter closures
Arterial duct row aorta radiography is crossed, to clearly show that PDA, the selection convenient for plugging device model and surgical procedure.Such as Fig. 2 institutes
Show, endaortic blood flow direction is to flow through the positions PDA from aorta proximal part B, flow to aorta distal end A again.Aorta
When radiography, contrast agent flows through PDA from aorta proximal part B and flows to pulmonary artery side to distal end A, from aorta side through arterial duct
The anatomical structure of PDA could be shown very well.
The curl direction of existing frequently-used pigtail catheter is non-adjustable, cannot be fixed on ideal aorta interimage well
Position, contrast agent loss are unfavorable for PDA developments；As shown in Figure 1, and head end have side opening section long, passed through from pulmonary artery in conduit
When arterial duct reaches aorta, in the pigtail catheter head end of circle shape often cannot be freely be placed into proximal part above PDA
In aorta (as shown in Figure 2).In this way, from femoral vein side by pulmonary artery, arterial duct row aorta radiography, due to：(a),
Aortic flow speed is fast, and conduit head end is difficult to fix by blood flow impact, is easy to shake to PDA distal end A, pigtail catheter release
Contrast agent it is most of walked with aortic flow drift, only flow to PDA on a small quantity；(b), due to there is the pigtail catheter head end mistake of side opening
Long, part side opening is likely located at the pulmonary artery side of arterial duct, and contrast agent is not from PDA aortas effluent to pulmonary artery when radiography
Side, but almost develop simultaneously in pulmonary artery side and aorta side, the pulmonary artery side contrast agent interference PDA developments occurred in advance,
It is difficult to see the concrete shape and size of PDA clearly in this way, difficulty is caused to the selection and surgical procedure of PDA plugging devices.
Therefore, how to solve in PDA plugging device implant surgeries, the curl direction of existing pigtail angiography catheter can not
It adjusts, ideal aorta interimage position cannot be fixed on well, contrast agent loss is unfavorable for PDA developments；And side opening section mistake
Long, part side opening is located at arterial duct pulmonary artery side, and the contrast agent flowed out from pulmonary artery end side hole is easy to interfere PDA developments, very
Difficulty sees the concrete shape and size of PDA clearly, thus the problem of be difficult to choose the PDA plugging devices of suitable types, and it is special to become this field
Industry technical staff important technological problems to be solved.
Invention content
To overcome the problems, such as at least to a certain extent present in the relevant technologies, the application provides a kind of angiography catheter, solution
It has determined in PDA plugging device implant surgeries, the curl direction of existing pigtail angiography catheter is non-adjustable, cannot be fixed on well
Ideal aorta interimage position, contrast agent loss are unfavorable for PDA developments；And side opening section is long, part side opening is located at artery
Conduit pulmonary artery side, the contrast agent flowed out from pulmonary artery end side hole is easy to interfere PDA developments, it is difficult to see the concrete shape of PDA clearly
And size, thus the problem of be difficult to choose the PDA plugging devices of suitable types.
The present invention provides a kind of angiography catheter, for conveying contrast agent in PDA plugging device implant surgeries, including：Head
Portion, the middle part for being connected and penetrating through with the head, the tail portion for being connected and penetrating through with the middle part, the head are arc knot
Structure, the middle part are hose, and the head is equipped with contrast agent liberation port；
Further include：First draught line and the second draught line, the of the first end of first draught line and the middle part
Some connection, second draught line first end connect with the second point of the middle part, and described first point along described
The circumferentially opposed close head side of middle part, the second point along the middle part the circumferentially opposed separate head
The side in portion, first draught line and second draught line are stretched out by the tail portion, described when pulling the first draught line
Middle part drives the curving where the head to described first point；When pulling the second draught line, the middle part band
Curving where dynamic from the head to the second point.
Preferably, further include pulling the first control device of first draught line and pulling the of second draught line
Two control devices.
Preferably, the first control device and the second control device include：Shell, rocking arm, wire spool, rotation
One end of body and pedestal, the rocking arm is inserted into the axis hole of the rotary body, and the rocking arm can fixed dwell in specific bit
It sets, the wire spool is equipped with card line device, and protrusion in an axial direction is additionally provided on the wire spool, the protrusion and the rotation
The groove that is arranged on swivel is equipped, and one end of the rotary body is equipped with inner arm torsionspring, and the two of the inner arm torsionspring
Arm is located between the protrusion and the groove, and the axis hole side wall of the pedestal is circumferentially arranged with annular groove, the interior brachiostrophosis bullet
Spring is mounted in the annular groove, and the shell is sleeved on outside the wire spool, and the shell is fixedly mounted with the pedestal.
Preferably, the card line device is card line pin.
Preferably, described first point and the second point are located at two vertex that the middle part is diametrically opposed to one another.
Preferably, first draught line and second draught line are in the tube chamber of the middle part and the tail portion
Portion.
Preferably, the angiography catheter and the angle adjustable extent in direction straight up are 0 ° -90 °.
Preferably, the material of first draught line and second draught line is nitinol alloy wire or copper wire or stainless steel
Silk.
Preferably, the contrast agent liberation port along the head circumferentially around setting.
Preferably, the quantity of the contrast agent liberation port is 6-12.
The technical solution that embodiments herein provides can include the following benefits：Angiography catheter include head, in
Between portion and tail portion, and head connects and penetrates through with middle part, and middle part is connected and penetrated through with tail portion, and middle part is hose, head
It is arcuate structure and is equipped with contrast agent liberation port, further includes two draught lines to adjust the bending direction of angiography catheter, two are led
Lead is separately positioned on the both sides of conduit cavity, and one end is connect with middle part, and the other end is stretched out from tail portion, pulls the first draught line
When, middle part drives head to curving；When pulling the second draught line, middle part drives head to another lateral bend.Such as
This setting, the curl direction of angiography catheter head end can be adjusted, convenient for conduit head end is fixed on ideal radiography in aorta
Position --- i.e. in the aorta of arterial duct proximal part；And it only is equipped with contrast agent liberation port in conduit head end curling circle portion,
There is no contrast agent liberation port other than circle portion, which ensures that contrast agent liberation ports to be located only in aorta, without dynamic
Even arterial duct pulmonary artery side in arteries and veins conduit, when radiography, will not interfere PDA to develop, and can clearly show that the concrete shape of PDA
And size, convenient for choosing the PDA plugging devices to suitable types.
It should be understood that above general description and following detailed description is only exemplary and explanatory, not
The application can be limited.
Description of the drawings
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the application
Example, and the principle together with specification for explaining the application.
Fig. 1 is common pigtail angiography catheter structural schematic diagram；
Fig. 2 is the schematic diagram that common pigtail catheter reaches aorta by arterial duct；
Fig. 3 is angiography catheter structural schematic diagram in the embodiment of the present invention；
Fig. 4 is the schematic diagram that angiography catheter reaches aorta by arterial duct in the embodiment of the present invention；
Fig. 5 is the schematic diagram of the first draught line and the second draught line position in the catheter in the embodiment of the present invention；
Fig. 6 is the sectional view of the first draught line and the second draught line position in the catheter in the embodiment of the present invention；
Fig. 7 is the explosive view of control device in the embodiment of the present invention.
In figure：
The heads 1-, 2- middle parts, the tail portions 3-, 4- contrast agent liberation ports, the first draught lines of 5-, the second draught lines of 6-, 7- shells
Body, 8- rocking arms, 9- wire spools, 10- rotary bodies, 11- pedestals, 12- inner arm torsionsprings, 13- card line pins, A- distal ends, B- are close
Heart end.
Specific implementation mode
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the application.On the contrary, they be only with it is such as appended
The example of consistent device and method of some aspects be described in detail in claims, the application.
Present embodiment provides a kind of angiography catheter, solves and is implanted into through femoral vein approach PDA plugging devices merely
In operation, when conduit is through pulmonary artery, arterial duct to Aortography, the curl direction of existing pigtail angiography catheter head end is not
It is adjustable, it cannot be fixed on ideal aorta interimage position well；And conductor housing end side hole section is long, part side opening is located at
Arterial duct pulmonary artery side, the contrast agent flowed out from pulmonary artery end side hole is easy to interfere PDA developments, it is difficult to see the specific of PDA clearly
Shapes and sizes, thus the problem of be difficult to choose the PDA plugging devices of suitable types.
To make the object, technical solutions and advantages of the present invention clearer, technical scheme of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
Hereinafter, being illustrated to embodiment with reference to attached drawing.In addition, embodiments illustrated below is not to recorded in claim
Invention content rise any restriction effect.In addition, the full content of the composition represented by following example is not limited to as right
It is required that necessary to the solution of recorded invention.
With reference to figure 1-7, present embodiment provides a kind of angiography catheter, as shown in figure 3, including head 1, middle part
2 and tail portion 3, and head 1 is connected and penetrates through with middle part 2, middle part 2 is connected and penetrates through with tail portion 3, and head 1 is arc knot
Structure and it is equipped with contrast agent liberation port 4, angiography catheter is used for conveying contrast agent, and angiography catheter enters arterial duct and reaches suitable position
It postpones, contrast agent is released from the contrast agent liberation port 4 on head 1.
Further, in order to adjust the bending direction of angiography catheter, middle part 2 is hose, and middle part 2 is that have bullet
The hose of property, encounters and can return to the original form automatically after external force is deformed, do not interfere with the flowing of contrast agent, this implementation
In example, angiography catheter further includes the first draught line 5 and the second draught line 6, and the of the first end of the first draught line 5 and middle part 2
Any is connected, the first end of the second draught line 6 is connect with the second point of middle part 2, and first point of circumferential phase along middle part 2
To close to 1 side of head, second point is along the side on the circumferentially opposed separate head 1 of middle part 2, the first draught line 5 and second
Draught line 6 is stretched out by the tail portion 3, so set, the position distribution of first point and second point in both sides, facilitates and adjusts radiography and lead
The bending direction of pipe to two lateral bends, such as when arterial duct vertically when, pull the first draught line 5 when, 2 band of middle part
Move the lateral bend to the left of head 1；When pulling the second draught line 6, middle part 2 drives the lateral bend to the right of head 1.
In the present embodiment, due to the limitation in arterial duct space, angiography catheter and the angle in direction straight up are adjustable
Ranging from 0 ° -90 °, the adjusting that can meet bending direction is arranged such.
After angiography catheter provided by the invention stretches out from arterial duct, and though conduit mouth towards which side (along blood flow
Direction or against blood flow direction), the head 1 of conduit is all connect by middle part 2 with tail portion 3, and shape is at an angle, convenient
1 position of head is adjusted in PDA proximal part B aortas and fixing.As shown in figure 4, when conduit mouth is along blood flow direction, lead
Pipe keeps left or keeps right, and middle part 2 can be affiliated in arterial duct mouth, can be still affiliated to when conduit mouth is against blood flow direction.
It should be noted that in order to save space, as shown in fig. 6, can the first draught line 5 and the second draught line 6 is embedding
Inside the tube chamber of angiography catheter, space can be not only saved, but also the ability of angiography catheter resistance to deformation can be increased.
Further, the material of draught line is nitinol alloy wire or stainless steel wire, since Nitinol is by nickel and titanium group
At bianry alloy, due to the change by temperature and mechanical pressure, there are two different crystal structures, have shape memory
Characteristic, super-elasticity, corrosion resistance, mithridatism and good shock absorbing characteristics, therefore medically apply very extensive；Certainly
Can be other satisfactory materials.
So set, angiography catheter includes head 1, middle part 2 and tail portion 3, and head 1 and middle part 2 are connected and are penetrated through,
Middle part 2 and tail portion 3 connect and penetrate through, and middle part 2 is hose, and head 1 is arcuate structure and is equipped with contrast agent liberation port 4, also
The bending direction of angiography catheter is adjusted including two draught lines, two draught lines are separately positioned on the both sides of conduit cavity, and one
End is connect with middle part 2, and the other end is stretched out from tail portion 3, and when pulling the first draught line 5, middle part 2 drives head 1 to a lateral bending
It is bent；When pulling the second draught line 6, middle part 2 drives head 1 to another lateral bend.So set, the head end of angiography catheter
Curl direction can be adjusted to both sides, and only be equipped with contrast agent liberation port 4 in head crimping portion 1, be not easy to interfere PDA aobvious
Shadow can see the concrete shape and size of PDA clearly, choose the PDA plugging devices to suitable types.
In the preferred embodiment of the present embodiment, draught line is pulled for convenience, further includes the first control for pulling the first draught line 5
The second control device of the second draught line 6 of device processed and drawing, naturally it is also possible to by directly pulled with hand or knob etc. other
The mode that can be pulled.
Further, in this embodiment first control device and second control device include：Shell 7, rocking arm 8, coiling
Disk 9, rotary body 10 and pedestal 11, one end of rocking arm 8 are inserted into the axis hole of rotary body 10, and rocking arm 8 can fixed dwell referring to
Positioning is set, and wire spool 9 is equipped with card line device, and protrusion in an axial direction is additionally provided on wire spool 9, and protrusion is set on rotary body 10
The groove set is equipped, and one end of rotary body 10 is equipped with inner arm torsionspring 12, and the two-arm of inner arm torsionspring 12 is located at protrusion
Between groove, the axis hole side wall of pedestal 11 is circumferentially arranged with annular groove, and inner arm torsionspring 12 is mounted in annular groove, 7 sets of shell
On wire spool 9, and shell 7 is fixedly mounted with pedestal 11.
It should be noted that this control device can pass through the shell 7 and pedestal 11 that are solidly installed and fixing piece spiral shell
Bolt is connected and fixed, and the side wall of 11 endoporus of pedestal is provided with a ring slot prevents spring from axially altering for positioning inner arm torsionspring 12
Dynamic, the groove on rotary body 10 is installed with the male cooperation on wire spool 9, and the two-arm of inner arm torsionspring 12 is fixed,
Wire spool 9 and inner arm torsionspring 12 are driven by the rotation of rotary body 10, three rotates together, and draught line is wound on wire spool
On 9, if in winding process, artificially stop operating, at this moment, by the effect of inner arm torsionspring 12, rotary body 10 and around
Drum 9 will be acted on opposite power by from inner arm torsionspring 12 and extraneous load, ensures that wire spool 9 is static, prevents from leading
Lead reverse movement, further, the card line device on wire spool 9 can be card line pins 13, in 7 end of shell and wire spool 9
Side wall can be equipped with preformed hole, can be consolidated one end of draught line and wire spool 9 with card line pin 13 by preformed hole fastening nut
Fixed, one end of rocking arm 8 can be tetragonal body, be inserted into the axis hole of rotary body 10, rotate together, after can take out individually
It places, save space and reduces hidden danger.
In the present embodiment, in order to preferably control the bending direction of angiography catheter, preferably can first point and
Second point is arranged on two vertex that middle part 2 is diametrically opposed to one another.In certain still other embodiments, two points can also be arranged
On the different position of middle part 2, for example it is arranged in both sides.
It should be noted that in order to allow contrast agent discharge after be uniformly dispersed, contrast agent liberation port 4 can be along the week on head 1
To around setting, specifically the quantity of contrast agent liberation port 4 can be 6-12, such as 10；Further, contrast agent discharges
4 diameter ranges of mouth are 1-2mm；Contrast agent liberation port 4 is only distributed in the arch section on head 1, and middle part 2 and tail portion 3 are not set
It sets, is arranged such, it is ensured that contrast agent is flowed down from head 1, by PDA, is prevented excessive contrast agent from flowing out, is done to PDA developments
It disturbs.
The material of angiography catheter is PU (Polyurethane polyurethanes) or ABS (Acrylonitrile
Butadiene Styrene plastic acrylonitrile-butadiene-styrene (ABS)s plastics), naturally it is also possible to it is satisfactory for other
Material.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
It is understood that same or similar part can mutually refer in the various embodiments described above, in some embodiments
Unspecified content may refer to same or analogous content in other embodiment.
Although embodiments herein has been shown and described above, it is to be understood that above-described embodiment is example
Property, it should not be understood as the limitation to the application, those skilled in the art within the scope of application can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (10)
1. a kind of angiography catheter, for conveying contrast agent in PDA plugging device implant surgeries, which is characterized in that including：Head
(1), the middle part (2) for being connected and penetrating through with the head (1), the tail portion (3) for being connected and penetrating through with the middle part (2), institute
It is arcuate structure to state head (1), and the middle part (2) is hose, and the head (1) is equipped with contrast agent liberation port (4)；
Further include：First draught line (5) and the second draught line (6), first end and the middle part of first draught line (5)
(2) first point connection, second draught line (6) first end connect with the second point of the middle part (2), and described the
A little along the circumferentially opposed close head (1) side of the middle part (2), the second point is along the middle part
(2) side on the circumferentially opposed separate head (1), first draught line (5) and second draught line (6) are by described
Tail portion (3) is stretched out, and when pulling the first draught line (5), the middle part (2) drives the head (1) to first point institute
Curving；When pulling the second draught line (6), the middle part (2) drives the head (1) to the second point institute
Curving.
2. angiography catheter as described in claim 1, which is characterized in that further include the first of drawing first draught line (5)
Control device and the second control device for pulling second draught line (6).
3. angiography catheter as claimed in claim 2, which is characterized in that the first control device and the second control device
Include：Institute is inserted into one end of shell (7), rocking arm (8), wire spool (9), rotary body (10) and pedestal (11), the rocking arm (8)
In the axis hole for stating rotary body (10), and the rocking arm (8) can fixed dwell in designated position, the wire spool (9) is equipped with
Card line device, and protrusion in an axial direction is additionally provided on the wire spool (9), it is arranged in the protrusion and the rotary body (10)
Groove is equipped, and one end of the rotary body (10) is equipped with inner arm torsionspring (12), and the two of the inner arm torsionspring (12)
Arm is located between the protrusion and the groove, and the axis hole side wall of the pedestal (11) circumferentially arranged with annular groove, turn round by the inner arm
Turn spring (12) in the annular groove, the shell (7) is sleeved on the wire spool (9) outside, and the shell (7) with it is described
Pedestal (11) is fixedly mounted with.
4. angiography catheter as claimed in claim 3, which is characterized in that the card line device is card line pin (13).
5. angiography catheter as described in claim 1, which is characterized in that described first point and the second point are located at the centre
Two vertex that portion (2) is diametrically opposed to one another.
6. angiography catheter as described in claim 1, which is characterized in that first draught line (5) and second draught line
(6) it is embedded in inside the middle part (2) and the tube chamber of the tail portion (3).
7. angiography catheter as claimed in claim 2, which is characterized in that the angiography catheter and the angle in direction straight up can
Adjustable range is 0 ° -90 °.
8. angiography catheter as described in claim 1, which is characterized in that first draught line (5) and second draught line
(6) material is nitinol alloy wire or copper wire or stainless steel wire.
9. angiography catheter as described in claim 1, which is characterized in that the contrast agent liberation port (4) is along the head (1)
Circumferentially around setting.
10. angiography catheter as described in claim 1, which is characterized in that the quantity of the contrast agent liberation port (4) is 6-12
It is a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810257764.7A CN108295357A (en) | 2018-03-27 | 2018-03-27 | Angiography catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810257764.7A CN108295357A (en) | 2018-03-27 | 2018-03-27 | Angiography catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108295357A true CN108295357A (en) | 2018-07-20 |
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ID=62846682
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810257764.7A Pending CN108295357A (en) | 2018-03-27 | 2018-03-27 | Angiography catheter |
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| Country | Link |
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| CN (1) | CN108295357A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110237404A (en) * | 2019-07-03 | 2019-09-17 | 江苏大学附属医院 | A kind of dual balloon catheter with pigtail |
| CN110339455A (en) * | 2019-06-24 | 2019-10-18 | 郑州大学第一附属医院 | A kind of angiography catheter of adjustable end bending angle |
| CN112601572A (en) * | 2018-08-14 | 2021-04-02 | 伯恩森斯韦伯斯特(以色列)有限责任公司 | In-balloon flexure mechanism for enhanced balloon maneuverability |
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| CN2487383Y (en) * | 2001-03-16 | 2002-04-24 | 唐山市工人医院 | Drainage-tube for hydrocardia |
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| CN112601572A (en) * | 2018-08-14 | 2021-04-02 | 伯恩森斯韦伯斯特(以色列)有限责任公司 | In-balloon flexure mechanism for enhanced balloon maneuverability |
| CN110339455A (en) * | 2019-06-24 | 2019-10-18 | 郑州大学第一附属医院 | A kind of angiography catheter of adjustable end bending angle |
| CN110237404A (en) * | 2019-07-03 | 2019-09-17 | 江苏大学附属医院 | A kind of dual balloon catheter with pigtail |
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