CN208710762U - Radiography catheter - Google Patents
Radiography catheter Download PDFInfo
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- CN208710762U CN208710762U CN201820422800.6U CN201820422800U CN208710762U CN 208710762 U CN208710762 U CN 208710762U CN 201820422800 U CN201820422800 U CN 201820422800U CN 208710762 U CN208710762 U CN 208710762U
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- draught line
- angiography catheter
- pda
- contrast agent
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- 238000002601 radiography Methods 0.000 title abstract description 12
- 238000002583 angiography Methods 0.000 claims abstract description 43
- 239000002872 contrast media Substances 0.000 claims abstract description 41
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 6
- 238000001356 surgical procedure Methods 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 239000007943 implant Substances 0.000 claims description 4
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 claims description 4
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 210000000709 aorta Anatomy 0.000 abstract description 24
- 210000001147 pulmonary artery Anatomy 0.000 abstract description 19
- 238000005452 bending Methods 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000002513 implantation Methods 0.000 abstract 1
- 230000017531 blood circulation Effects 0.000 description 8
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- 210000001367 artery Anatomy 0.000 description 4
- 208000002330 Congenital Heart Defects Diseases 0.000 description 3
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 3
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 208000028831 congenital heart disease Diseases 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 210000003191 femoral vein Anatomy 0.000 description 3
- 208000003278 patent ductus arteriosus Diseases 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 2
- 238000002584 aortography Methods 0.000 description 2
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- 206010010356 Congenital anomaly Diseases 0.000 description 1
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- 230000007797 corrosion Effects 0.000 description 1
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Abstract
The application discloses a radiography conduit, which is used for conveying a contrast agent in a PDA occluder implantation operation, and comprises a head part, a middle part and a tail part, wherein the head part and the middle part are connected and communicated, the middle part and the tail part are connected and communicated, the middle part is a hose, the head part is of an arc structure and is provided with a contrast agent release port, the radiography conduit also comprises two traction wires for adjusting the bending direction of the radiography conduit, the two traction wires are respectively arranged at two sides of an inner cavity of the conduit, one end of each traction wire is connected with the middle part, the other end of each traction wire extends out of the tail part, and when a first traction wire is pulled; when the second traction wire is pulled, the middle part drives the head to bend towards the other side. Due to the arrangement, the curling direction of the head end of the angiography catheter can be adjusted, and the angiography catheter can be well fixed at an ideal aorta angiography position and is beneficial to PDA (personal digital assistant) development; and only the head end is provided with a contrast agent release port, so that the contrast agent cannot flow out from the pulmonary artery end, the development of the PDA cannot be interfered, the specific shape and size of the PDA can be seen clearly, and the PDA occluder with the proper model can be selected.
Description
Technical field
The utility model relates to the field of medical instrument technology, more specifically to a kind of angiography catheter.
Background technique
In recent years, due to the influence of the factors such as environment, radiation, heredity, the probability of neonatal morbidity is risen 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 choice is percutaneous patent ductus arteriosus transcatheter occlusion, i.e., by the method for interventional therapy,
PDA plugging device is implanted to arterial duct position is stifled to close arterial duct, to achieve the purpose that eradicate PDA.Conventional is percutaneous dynamic
Arteries and veins patent ductus transcatheter occlusion needs to puncture femoral artery, is convenient for pigtail catheter row aorta radiography with clearly showing that PDA
It is operated in the selection and art of plugging device model.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, thrombus complication caused by avoiding the postoperative long period from lying in bed.
It is exactly to be passed through using pigtail catheter from pulmonary artery merely through one of successful key of intravenous route row PDA percutaneous transcatheter closure
Arterial duct row aorta radiography is crossed, the selection and surgical procedure to clearly show that PDA, convenient for plugging device model.Such as Fig. 2 institute
Show, endaortic blood flow direction is to flow through the position PDA from aorta proximal part B, flow to aorta distal end A again.Aorta
When radiography, contrast agent flows through PDA to distal end A from aorta proximal part B, flows to pulmonary artery side 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 development；As shown in Figure 1, and head end have side opening section too long, passed through in conduit from pulmonary artery
When arterial duct reaches aorta, it cannot often be placed into proximal part above PDA freely in the pigtail catheter head end of circle shape
In aorta (as shown in Figure 2).In this way, pass through pulmonary artery, arterial duct row aorta radiography from femoral vein side, 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 largely drifted away with aortic flow, 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 aorta 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 development 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 device.
Therefore, how to solve in PDA plugging device implant surgery, 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 development；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 development, very
Difficulty sees the concrete shape and size of PDA clearly, thus is difficult to the problem of choosing the PDA plugging device of suitable types, and it is special to become this field
Industry technical staff important technological problems to be solved.
Utility model content
To be overcome the problems, such as present in the relevant technologies at least to a certain extent, the application provides a kind of angiography catheter, solution
It has determined in PDA plugging device implant surgery, 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 development；And side opening section is too long, part side opening is located at artery
Conduit pulmonary artery side, the contrast agent flowed out from pulmonary artery end side hole are easy to interfere PDA development, are difficult to see the concrete shape of PDA clearly
And size, thus it is difficult to the problem of choosing the PDA plugging device of suitable types.
The utility model provides a kind of angiography catheter, for conveying contrast agent in PDA plugging device implant surgery, wraps
Include: head, 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
Arcuate structure, the middle part are hose, and the head is equipped with contrast agent liberation port；
Further include: the of the first draught line and the second draught line, 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
Move the curving where the head to the second point.
It 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, rocker arm, wire spool, rotation
Body and pedestal, one end of the rocker arm are inserted into the axis hole of the rotary body, and the rocker arm is capable of fixing and rests on specific bit
It sets, the wire spool is equipped with card line device, and is additionally provided on the wire spool along axial protrusion, 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 covers 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 lumen 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 is along the head circumferentially around setting.
Preferably, the quantity of the contrast agent liberation port is 6-12.
Embodiments herein provide technical solution 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 two 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 is adjustable, 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 device for arriving suitable types.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The application can be limited.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the application
Example, and together with specification it is used to explain the principle of 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 utility model embodiment；
Fig. 4 is the schematic diagram that angiography catheter reaches aorta by arterial duct in the utility model embodiment；
Fig. 5 is the schematic diagram of the first draught line and the second draught line position in the catheter in the utility model embodiment；
Fig. 6 is the sectional view of the first draught line and the second draught line position in the catheter in the utility model embodiment；
Fig. 7 is the explosive view of control device in the utility model embodiment.
In figure:
The head 1-, 2- middle part, the tail portion 3-, 4- contrast agent liberation port, the first draught line of 5-, the second draught line of 6-, 7- shell
Body, 8- rocker arm, 9- wire spool, 10- rotary body, 11- pedestal, 12- inner arm torsionspring, 13- card line pin, A- distal end, B- are close
Heart end.
Specific embodiment
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 the 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 device 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 too long, part side opening is located at
Arterial duct pulmonary artery side, the contrast agent flowed out from pulmonary artery end side hole are easy to interfere PDA development, are difficult to see the specific of PDA clearly
Shapes and sizes, thus it is difficult to the problem of choosing the PDA plugging device of suitable types.
To keep the purpose of this utility model, technical solution and advantage clearer, below by the technology to the utility model
Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Obtained all other embodiment is put, the range that the utility model is protected is belonged to.
Hereinafter, being illustrated referring to attached drawing to embodiment.In addition, embodiments illustrated below is not to recorded in claim
Utility model content rise any restriction effect.In addition, the full content of composition represented by following example is not limited to conduct
Necessary to the solution of utility model documented by claim.
With reference to Fig. 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 to convey 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, encountering can return to the original form after external force is deformed automatically, will not influence 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, side of the second point along 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 two sides, facilitates and adjusts radiography and lead
The bending direction of pipe to two lateral bends, such as when arterial duct along the vertical direction 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
Range is 0 ° -90 °, and the adjusting that can satisfy bending direction is arranged such.
After angiography catheter provided by the utility model 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 with tail portion 3 by middle part 2, and shape is at an angle,
Facilitate and adjusts 1 position of head in PDA proximal part B aorta and fixing.As shown in figure 4, conduit mouth is along blood flow direction
When, conduit keeps left or keeps right, and middle part 2 can be affiliated in arterial duct mouth, still can be with when conduit mouth is against blood flow direction
It is affiliated to.
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 lumen 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 using very extensive；Certainly
It 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
Adjusting the bending direction of angiography catheter including two draught lines, two draught lines are separately positioned on the two 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 two 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 device for arriving 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, rocker arm 8, coiling
One end of disk 9, rotary body 10 and pedestal 11, rocker arm 8 is inserted into the axis hole of rotary body 10, and rocker arm 8 is capable of fixing and rests on finger
Positioning is set, and wire spool 9 is equipped with card line device, and is additionally provided on wire spool 9 along axial protrusion, protrusion with 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, circumferentially arranged with annular groove, inner arm torsionspring 12 is mounted in annular groove the axis hole side wall of pedestal 11, and 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 inner hole of pedestal is provided with a ring slot prevents spring from axially altering for positioning inner arm torsionspring 12
Dynamic, the male cooperation on groove and wire spool 9 on rotary body 10 is installed, 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 artificially stopped operating in winding process, 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, guarantees 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 pin 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 rocker arm 8 can be tetragonal body, is inserted into the axis hole of rotary body 10, rotates 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
Two vertex that middle part 2 is diametrically opposed to one another are arranged in second point.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 two 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 development
It disturbs.
The material of angiography catheter is PU (Polyurethane polyurethanes) or ABS (Acrylonitrile
Butadiene Styrene plastic acrylonitrile-butadiene-styrene (ABS) plastics), naturally it is also possible to it is satisfactory for other
Material.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replacement, it should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with the power
Subject to the protection scope that benefit requires.
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 the same or similar content in other embodiments.
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, modifies, replacement and variant.
Claims (10)
1. a kind of angiography catheter, for conveying contrast agent in PDA plugging device implant surgery characterized by comprising 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
Stating head (1) is arcuate structure, and the middle part (2) is hose, and the head (1) is equipped with contrast agent liberation port (4)；
Further include: the first draught line (5) and the second draught line (6), the first end of first draught line (5) and the middle part
(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 first point of head (1) Xiang Suoshu institute
Curving；When pulling the second draught line (6), the middle part (2) drives head (1) the Xiang Suoshu 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
It include: shell (7), rocker arm (8), wire spool (9), rotary body (10) and pedestal (11), institute is inserted into one end of the rocker arm (8)
In the axis hole for stating rotary body (10), and the rocker arm (8) is capable of fixing and rests on designated position, and the wire spool (9) is equipped with
Card line device, and the protrusion along 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) to be mounted in the annular groove, the shell (7) cover 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) inside the lumen of the middle part (2) and 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.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820422800.6U CN208710762U (en) | 2018-03-27 | 2018-03-27 | Radiography catheter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820422800.6U CN208710762U (en) | 2018-03-27 | 2018-03-27 | Radiography catheter |
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| CN208710762U true CN208710762U (en) | 2019-04-09 |
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| CN201820422800.6U Active CN208710762U (en) | 2018-03-27 | 2018-03-27 | Radiography catheter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108295357A (en) * | 2018-03-27 | 2018-07-20 | 中南大学湘雅医院 | Radiography catheter |
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2018
- 2018-03-27 CN CN201820422800.6U patent/CN208710762U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108295357A (en) * | 2018-03-27 | 2018-07-20 | 中南大学湘雅医院 | Radiography catheter |
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