CN109700511A - A kind of intracavitary closed system of varix of lower limb - Google Patents
A kind of intracavitary closed system of varix of lower limb Download PDFInfo
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- CN109700511A CN109700511A CN201910177250.5A CN201910177250A CN109700511A CN 109700511 A CN109700511 A CN 109700511A CN 201910177250 A CN201910177250 A CN 201910177250A CN 109700511 A CN109700511 A CN 109700511A
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- microtubular
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Abstract
The present invention relates to a kind of intracavitary closed systems of varix of lower limb, belong to the field of medical instrument technology.Including multi-cavity catheter, filling gun, syringe, microtubular, microtubular interface end, microtubular fixed device, red emitter, multi-cavity catheter interface end, optical fiber interface end, optical fiber, optic fibre fixing device；Filling gun is connect with syringe；Syringe is connect with microtubular interface end；Microtubular interface end is connect with the fixed device of microtubular；Microtubular is connect by the fixed device of microtubular with microtubular interface end；Red emitter is connect with optical fiber interface end；Optical fiber interface end is connect with optic fibre fixing device；Optical fiber is connect by optic fibre fixing device with optical fiber interface end；Multi-cavity catheter interface end is connect with multi-cavity catheter；Microtubular, optical fiber pass through multi-cavity catheter interface end respectively and are connected in multi-cavity catheter.The present invention has many advantages, such as precise positioning, bonding that is quantitative, injecting uniformly binder, the dystopy embolism for preventing binder and promotion vascular wall.
Description
Technical field
The present invention relates to a kind of intracavitary closed systems of varix of lower limb, belong to the field of medical instrument technology.
Background technique
Varix of lower limb is one of most common disease of surgery, can reach 30% in western countries' disease incidence.Veins of lower extremity
The disease incidence of varicose increases with the age and is increased, and has seriously affected people's lives quality, increases the financial burden of society.It is non-
Operative treatment effect is poor, and easy to recur.Traditional operation be high ligation and take out stripping art, this method thorough treatment, widely
Using, but surgical injury is big, and scar is more, influences beauty, and recurrence rate is higher.Sclerosing foam treatment treatment is not thorough, especially
It is poor for coarse cirso- curative effect, high recurrence rate, normal secondary thrombus phlebitis.Intracavity laser treatment, RF therapy
Etc. heat treatment technics require special installation, need to anaesthetize, and often occur skin, saphenous nerve thermal damage, it is quiet to thinner varicose
Arteries and veins or the pockets of cirso- of buckling can not be handled.Biogum or tissue glue start to control applied to the bonding of varix of lower limb
It treats, can achieve the effect of closure cirso-.Binder bonding does not need to anaesthetize, non-heat loss, can achieve and swashs with intracavitary
Light treatment, the same curative effect of RF therapy.But binder is fluid, and being easy dystopy embolism leads to pulmonary embolism, and is difficult to uniformly infuse
It penetrates in venous lumen, needing to position under DSA mostly or localization by ultrasonic, and is not suitable for the development in basic medical unit, is unfavorable for
It is universal.For tissue glue's bonding system of America and Europe's exploitation for treating varication, price is more expensive, and needs in ultrasonic guidance
Under treated, be not suitable for carry out at home, be not particularly suitable for the development of basic hospital at home.A valence is needed at this stage
Honest and clean, practical, simple, effective instrument is used for the treatment of varix of lower limb.
Summary of the invention
The present invention is directed to propose can be under feux rouges guide precisely after a kind of entrance cirso- of noninvasive, non-thermal damage's type
Positioning, in venous lumen quantification, injects uniformly binder, presses vein convenient for conduit proximal segment, is conducive to prevent the different of binder
The intracavitary closed system of position embolism and the varix of lower limb for promoting vascular wall to bind.
The technical scheme adopted by the invention to solve the technical problem is that: a kind of intracavitary closed system of varix of lower limb
System, including the fixed device of multi-cavity catheter, filling gun, syringe, microtubular, microtubular interface end, microtubular, red emitter,
Multi-cavity catheter interface end, optical fiber interface end, optical fiber, optic fibre fixing device；Wherein, the filling gun is connect with syringe；It is described
Syringe is connect with microtubular interface end；The microtubular interface end is connect with the fixed device of microtubular；The microtubular passes through
The fixed device of microtubular is connect with microtubular interface end；The red emitter is connect with optical fiber interface end；The optical fiber interface
End is connect with optic fibre fixing device；The optical fiber is connect by optic fibre fixing device with optical fiber interface end；The multi-cavity catheter connects
Mouth end is connect with multi-cavity catheter；The microtubular, optical fiber pass through multi-cavity catheter interface end respectively and are connected in multi-cavity catheter.
Optimisation technique scheme of the invention is that the multi-cavity catheter includes the first lumen, the second lumen；The multi-cavity catheter
Interface end includes the first lumen interface end, the second lumen interface end；The first lumen interface end is connect with the first lumen；It is described
Second lumen interface end is connect with the second lumen；The microtubular is connected in the first lumen by the first lumen interface end；Institute
Optical fiber is stated to be connected in the second lumen by the second lumen interface end.
Optimisation technique scheme of the invention is that the internal diameter width of first lumen is wider than the internal diameter width of the second lumen.
Optimisation technique scheme of the invention is, the outer wall of the multi-cavity catheter, the inner wall of the first lumen, the second lumen it is interior
Wall is equipped with hydrophilic coating.
Optimisation technique scheme of the invention is that the fixed device of the microtubular is microtubular interface lock nut；The microtubular
Interface lock nut is snapped connection with microtubular interface end.
Optimisation technique scheme of the invention is that the optic fibre fixing device includes fixator lock nut, silica gel ring, fixator master
Body, fixator connector；The connection of one end spiral of the fixator lock nut and retainer body；The silica gel ring is built in fixator
In main body；The other end of the retainer body is snapped connection with fixator connector.
Optimisation technique scheme of the invention is, the red emitter includes transmitter ontology, red emitter switch, red
Optical transmitting set interface end；Red emitter is arranged on the transmitter body surface to switch；The transmitter ontology and feux rouges are sent out
The connection of emitter interface end；The red emitter interface end is connect with optical fiber interface end.
Optimisation technique scheme of the invention is that the filling gun includes shell rear cover, shell front cover, push rod, spine bar, push rod
Pawl, brake pawl, push rod spring, brake pawl spring；The shell rear cover, shell front cover snap connection；The push rod, spine
Item, push rod pawl, brake pawl, push rod spring, brake pawl spring are buckled in respectively between shell rear cover, shell front cover；Institute
The one end for stating push rod is connect with push rod spring；The other end of the push rod is connect with push rod pawl；The upper end of the push rod pawl
Brake pawl spring is equipped between the other end of push rod；The lower end of the push rod pawl and the upper end of spine bar connect；It is described to push away
The lower end of bar pawl is equipped with unidirectional ratchet；The upper end that the spine bar corresponds to push rod pawl is equipped with unidirectional ratchet；Under the spine bar
End is connect with the upper end of brake pawl；The lower end that the spine bar corresponds to brake pawl is equipped with two-way ratchet；The brake pawl
Upper end is equipped with compound mitre.
Optimisation technique scheme of the invention is, the unidirectional ratchet, two-way ratchet spacing be equidistant spacing.
Optimisation technique scheme of the invention is that the syringe is screw syringe.
The present invention uses the above technological means, has following technical effect that
Conduit of the invention enter after cirso- can under feux rouges guide precise positioning, in venous lumen quantification, uniformly note
Binder is penetrated, presses vein convenient for conduit proximal segment, be conducive to prevent the dystopy embolism of binder and promotes the bonding of vascular wall.
Detailed description of the invention
Fig. 1 is the connection schematic diagram of the intracavitary closed system of varix of lower limb；
Fig. 2 is double channel catheter structural schematic diagram；
Fig. 3 is the sectional view of double channel catheter；
Fig. 4 is seal wire schematic diagram；
Fig. 5 is the structure chart of filling gun；
Fig. 6 is that the push rod of filling gun promotes sectional view；
Fig. 7 is sectional view when the push rod of filling gun unclamps；
Fig. 8 is sectional view when filling gun push rod is dropped back；
Fig. 9 is red emitter and optical fiber schematic diagram；
Figure 10 is the structural schematic diagram of fibre-optical fixator；
Figure 11 is the structural schematic diagram of microtubular and microtubular interface；
Figure 12 is the conduit head end implementation diagram of double channel catheter；
Figure 13 is that double channel catheter enters the intracavitary schematic diagram of cirso-；
In figure, 1- double channel catheter；2- double channel catheter inner cavity main chamber interface；3- double channel catheter inner cavity pair chamber interface；4- double channel catheter
Main chamber；5- double channel catheter pair chamber；6- seal wire；7- filling gun shell rear cover；8- filling gun shell front cover；9- push rod；10- spine bar；
11- push rod spring；12- push rod pawl；13- brake pawl；14- brake pawl spring；15- filling gun；16- red emitter；
17- red emitter switch；18- red emitter interface；19- optical fiber；20- optical fiber interface；21- fibre-optical fixator；22- is fixed
Device lock nut；23- silica gel ring；24- retainer body；25- fixator connector；26- microtubular；27- microtubular interface lock nut；28-
Microtubular interface；29- syringe；30- great saphenous vein.
Specific embodiment
Technical solution of the present invention is described in further detail with reference to the accompanying drawing:
As shown in Figure 1, a kind of intracavitary closed system of varix of lower limb, including multi-cavity catheter, filling gun 15, syringe 29,
The fixed device of microtubular 26, microtubular interface 28, microtubular, red emitter 16, multi-cavity catheter interface end, optical fiber interface 20,
Optical fiber 19, optic fibre fixing device；Wherein, filling gun 15 is connect with syringe 29；Syringe 29 is connect with microtubular interface 28；It is micro-
Catheter interface 28 is connect with the fixed device of microtubular；Microtubular 26 is connect by the fixed device of microtubular with microtubular interface 28；
Red emitter 16 is connect with optical fiber interface 20；Optical fiber interface 20 is connect with optic fibre fixing device；Optical fiber 19 is fixed by optical fiber
Device is connect with optical fiber interface 20；Multi-cavity catheter interface end is connect with multi-cavity catheter；Microtubular 26, optical fiber 19 pass through multi-cavity respectively
Catheter interface end is connected in multi-cavity catheter.
As shown in Figures 2 and 3, multi-cavity catheter is double channel catheter 1；Double channel catheter 1 is led including double channel catheter main chamber 4, two-chamber
Pipe pair chamber 5；The outer diameter of double channel catheter 1 can be 4-6F, preferably 6F, and conduit includes two-chamber, including double channel catheter main chamber 4, two-chamber
Conduit pair chamber 5.Wherein, double channel catheter main chamber 4 is connected with double channel catheter inner cavity main chamber interface 2, and double channel catheter pair chamber 5 is led with two-chamber
Tube cavity pair chamber interface 3 is connected.Double channel catheter pair chamber 5 is in 4 half Bao Rao of one side of double channel catheter main chamber.Conduit outer wall has with inner cavity
Hydrophilic coating.4 head end of double channel catheter main chamber is more concordant than double channel catheter pair 5 head ends of chamber.4 internal diameter 1.1-0.5mm of double channel catheter main chamber,
It is preferred that 1.0mm, can pass through 3F microtubular 26 by 0.038-0.018 inches of seal wires, preferably 0.035 inch of seal wire.It is double
The internal diameter of cavities conduit pipe pair chamber 5 as is shown in phantom in fig. 3, is designed as 0.7-0.2mm, preferably 0.35mm, can pass through 0.2mm light
It is fine.Catheter main body (not including junction portion) length is 150-60cm, preferably 90cm.
As shown in figure 4, being seal wire 6,0.038-0.018 inches of outer diameter, preferably 0.035 inch can pass through 6F conduit
The main chamber of 1.0mm internal diameter.The preferably hydrophilic safety guide wire of seal wire is conducive to enter in venous lumen safely.
If Fig. 5 is the structural schematic diagram of filling gun 15: containing push rod 9, spine bar 10, brake pawl in rear cover 7 and front cover 8
13, the corresponding inside groove of push rod spring 11, brake pawl spring 14, when rear cover 7 closes up with front cover 8, each component can be fixed accordingly
In in slot.Push rod pawl 12, in the pawl slot of push rod 9, there is ratchet spring by movable axis installation in slot.
As shown in fig. 6, pawl 10 blocks ratchet under the action of the spring when promoting push rod 9, a ratchet can be promoted,
Syringe 29 is 2ml standard screw syringe.Corresponding syringe 29 can promote 0.1ml scale, that is, it is (glutinous to inject 0.1ml liquid
Mixture), while the brake pawl of lower section can fix spine bar under the action of the spring.When unclamping push rod 9 or partly moving back push rod 9,
As shown in fig. 7, push rod spring 11 can withdraw 9 part of push rod, blocked under the action of the spring of the meeting of push rod pawl 12 at this time next
Ratchet, waiting promotes again, while the brake pawl 13 of lower section can fix spine bar 10 under the action of the spring.When complete recession
When push rod, as shown in figure 8, baffle of the filling gun lid between push rod and spine bar can lift push rod pawl 12, at this point it is possible to firmly
By the recession of spine bar 10 to the position needed, to place syringe 29.Brake pawl 13 has compound mitre, the corresponding braking of spine bar 10
The one side of pawl 13 is also the ratchet of compound mitre, and under certain active force, spine bar 10 can be with way moving.Spine bar 10 is corresponding
Push rod pawl 12 is unidirectional ratchet on one side, can only unidirectionally be moved forward when push rod pawl 12 fails to lift.
As shown in figure 9, red emitter uses economic and practical feux rouges pen (optical fiber detector), wavelength 650+10nm, 5-
30 milliwatts, 1-2 save No. 5 batteries.Red emitter has switch 17 and connector 18.The optical fiber interface 20 of optical fiber 19 can be sent out with feux rouges
Emitter connector 18 connects.Optical fiber 19 is 2-3m long, preferably 2.6m, diameter 0.2-0.4mm, preferably 0.2mm, can be led by 5F two-chamber
Pipe pair chamber (internal diameter 0.35mm).As shown in Figure 10, fibre-optical fixator by fixator lock nut 22, silica gel ring 23, retainer body 24,
Fixator connector 25 forms, and silica gel ring 23 is placed between the tapered end and retainer body 24 of fixator lock nut 22, solid when tightening
When determining device lock nut 22, silica gel ring 23 be squeezed internal diameter diminution, optical fiber 19 can be fixed.Fixator connector 25 is used for and conduit connects
First 3 are connected.
Figure 11 is microtubular 26, microtubular interface 28 and microtubular interface lock nut 27, and microtubular 26 is 3F conduit, length ratio
The long 2cm of the overall length of double channel catheter and its interface when microtubular is inserted into main chamber 4, and connects microtubular interface lock nut 27 and main chamber connects
When mouth 2, microtubular 26 can stretch out 2cm head end.When turning microtubular interface lock nut 27, the twisting of microtubular 26 not will lead to.It is micro-
Catheter interface 28 can be connect with 29 screw socket of 2ml standard screw syringe.The fixed device of microtubular is microtubular interface lock nut 27；
Microtubular interface lock nut 27 is snapped connection with microtubular interface 28.
Application method of the invention is as follows: pressing other varix of lower limb modus operandi sterile drapes.It is quiet in Varicose veins
The distal end of arteries and veins, such as great saphenous vein punctures, and is placed in seal wire 6, and with or without vagina vasorum, the super choosing of seal wire reaches the proximal end of great saphenous vein.
By optical fiber 19 by fixator 21, it is inserted into the secondary chamber 5 of conduit 1, is connected and fixed the interface 3 of device connector 25 Yu conduit, optical fiber
Head end is concordant with secondary 5 head end of chamber, fixator lock nut 22 is tightened, to fix optical fiber, then by fixator connector 25 from catheter interface 3
It unclamps, it is spare to extract optical fiber out out of conduit pair chamber 5.By in the main chamber 4 of 6 tail end of seal wire insertion double channel catheter 1, will be led through seal wire 6
Pipe 1 introduces the intracavitary of great saphenous vein 30, and conduit head end reaches about the proximal part of great saphenous vein.Fixed catheter 1, again through secondary chamber
5 insertion optical fiber 19, are connected and fixed device connector 25 and catheter interface 3, fibre-optical splice 20 are met at assistant, with the feux rouges outside operating table
The connector 18 of transmitter 16 connects.The switch 17 for opening red emitter, can be from the feux rouges for subcutaneously seeing 1 head end of conduit, root
Conduit 1 is positioned at the intracavitary appropriate location of great saphenous vein according to feux rouges.2ml standard screw syringe 29 is selected, estimated dosage is extracted
Binder (tissue glue or biogum).The push rod 9 of filling gun 15 is withdrawn in place completely, rearward pulls spine bar 10 to reach pre-
Position is counted, places syringe 29 in the syringe groove of filling gun 15.Microtubular interface 28 and 29 spiral shell of 2ml standard screw syringe
Mouth is connected and fixed.Filling gun 15 is picked up, the head end of syringe 29 is upward, continuously pushes push rod 9 to push syringe 29 forward
Handle, drain the air in syringe, binder fills microtubular, but does not spill over head end.Seal wire 6, insertion are taken out from conduit 1
Microtubular tightens the head end screw socket of syringe 26 and the interface 2 of conduit 1.Connect microtubular interface lock nut 27 and main chamber interface 2
And it is fixed.
1 head end of conduit is located at the intracavitary of 30 proximal end of great saphenous vein, and for microtubular 26 for injecting binder, secondary chamber 5 passes through light
Fibre 19 is guided using feux rouges through skin.
Before operation, lower limb lifting empties great saphenous vein blood.As shown in figure 12, operator's finger is in feux rouges proximal end 4cm
Place's pressing great saphenous vein 30, to block the blood flow of great saphenous vein, binder dystopy embolism when preventing from injecting.Estimate every section big hidden quiet
The binder demand of arteries and veins sets injecting number and withdrawing the speed and distance of conduit for every section of great saphenous vein.According to setting,
It has a rest and pushes push rod 9, is i.e. the binder of drug-injection phase 0.1ml, while at the uniform velocity withdrawing double channel catheter 1.As shown in figure 13, pressing is big hidden
The finger of vein in the same direction, synchronizing moving with the double channel catheter 1 withdrawn, so that binder sufficiently bonds great saphenous vein chamber, until
It is closed complete great saphenous vein, withdraws from double channel catheter 1.Microtubular interface lock nut 27 and main chamber interface 2 are unclamped, microtubular is removed
26, together with syringe 29 and filling gun 15.For coarseer great saphenous varicose vein branch, it can puncture again, be placed in seal wire
6, double channel catheter 1 is introduced through main chamber 4.After reaching suitable position, seal wire 6 is taken out, is inserted into microtubular 26, connects microtubular interface lock
Cap 27 and main chamber interface 2., according to the binder demand of great saphenous vein branch, set every section of cirso- inject number and
Withdraw the speed and distance of conduit.According to setting, interval pushes push rod 9, the i.e. binder of drug-injection phase 0.1ml, while at the uniform velocity
Withdraw double channel catheter 1.Finger is in the same direction, synchronizes pressing cirso-, so that binder sufficiently bonds cirso- chamber, until closing
Complete branch's cirso- is closed, double channel catheter 1 is withdrawn from.
The above is only some embodiments of the invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of intracavitary closed system of varix of lower limb, it is characterised in that: including multi-cavity catheter, filling gun, syringe, micro-
Conduit, microtubular interface end, microtubular fixed device, red emitter, multi-cavity catheter interface end, optical fiber interface end, optical fiber, light
The fixed device of fibre；Wherein, the filling gun is connect with syringe；The syringe is connect with microtubular interface end；It is described micro- to lead
Interface tube end is connect with the fixed device of microtubular；The microtubular is connect by the fixed device of microtubular with microtubular interface end；
The red emitter is connect with optical fiber interface end；The optical fiber interface end is connect with optic fibre fixing device；The optical fiber passes through
Optic fibre fixing device is connect with optical fiber interface end；The multi-cavity catheter interface end is connect with multi-cavity catheter；The microtubular, optical fiber
It is connected in multi-cavity catheter by multi-cavity catheter interface end respectively.
2. the intracavitary closed system of varix of lower limb according to claim 1, it is characterised in that: the multi-cavity catheter packet
Include the first lumen, the second lumen；The multi-cavity catheter interface end includes the first lumen interface end, the second lumen interface end；It is described
First lumen interface end is connect with the first lumen；The second lumen interface end is connect with the second lumen；The microtubular passes through
First lumen interface end is connected in the first lumen；The optical fiber is connected in the second lumen by the second lumen interface end.
3. the intracavitary closed system of varix of lower limb according to claim 2, it is characterised in that: first lumen
Internal diameter width is wider than the internal diameter width of the second lumen.
4. the intracavitary closed system of varix of lower limb according to claim 3, it is characterised in that: the multi-cavity catheter
Outer wall, the inner wall of the first lumen, the second lumen inner wall be equipped with hydrophilic coating.
5. the intracavitary closed system of varix of lower limb according to claim 1, it is characterised in that: the microtubular is fixed
Device is microtubular interface lock nut；The microtubular interface lock nut is snapped connection with microtubular interface end.
6. the intracavitary closed system of varix of lower limb according to claim 1, it is characterised in that: the fixed dress of the optical fiber
It sets including fixator lock nut, silica gel ring, retainer body, fixator connector；The one of the fixator lock nut and retainer body
Hold spiral connection；The silica gel ring is built in retainer body；The other end and fixator connector card of the retainer body
Button connection.
7. the intracavitary closed system of varix of lower limb according to claim 1, it is characterised in that: the red emitter
Including transmitter ontology, red emitter switch, red emitter interface end；Feux rouges is arranged on the transmitter body surface to send out
Emitter switch；The transmitter ontology is connect with red emitter interface end；The red emitter interface end and optical fiber interface
End connection.
8. the intracavitary closed system of varix of lower limb according to claim 1, it is characterised in that: the filling gun includes
Shell rear cover, shell front cover, push rod, spine bar, push rod pawl, brake pawl, push rod spring, brake pawl spring；The shell
Rear cover, shell front cover snap connection；The push rod, spine bar, push rod pawl, brake pawl, push rod spring, brake pawl spring point
It is not buckled between shell rear cover, shell front cover；One end of the push rod is connect with push rod spring；The other end of the push rod with
The connection of push rod pawl；Brake pawl spring is equipped between the upper end of the push rod pawl and the other end of push rod；The push rod spine
The lower end of pawl and the upper end of spine bar connect；The lower end of the push rod pawl is equipped with unidirectional ratchet；The spine bar corresponds to push rod pawl
Upper end be equipped with unidirectional ratchet；The lower end of the spine bar and the upper end of brake pawl connect；The spine bar corresponds to brake pawl
Lower end is equipped with two-way ratchet；The upper end of the brake pawl is equipped with compound mitre.
9. the intracavitary closed system of varix of lower limb according to claim 8, it is characterised in that: the unidirectional ratchet,
The spacing of two-way ratchet is equidistant spacing.
10. the intracavitary closed system of varix of lower limb according to claim 1, it is characterised in that: the syringe is
Screw syringe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910177250.5A CN109700511A (en) | 2019-03-08 | 2019-03-08 | A kind of intracavitary closed system of varix of lower limb |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910177250.5A CN109700511A (en) | 2019-03-08 | 2019-03-08 | A kind of intracavitary closed system of varix of lower limb |
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| CN201910177250.5A Pending CN109700511A (en) | 2019-03-08 | 2019-03-08 | A kind of intracavitary closed system of varix of lower limb |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112057129A (en) * | 2020-09-21 | 2020-12-11 | 上海玄宇医疗器械有限公司 | Vein closing system |
| CN113198069A (en) * | 2021-06-11 | 2021-08-03 | 卫纳塞德(北京)医疗科技有限公司 | Lower limb varicose vein closing system |
| CN113262008A (en) * | 2021-06-11 | 2021-08-17 | 卫纳塞德(北京)医疗科技有限公司 | Novel glue spraying gun |
-
2019
- 2019-03-08 CN CN201910177250.5A patent/CN109700511A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112057129A (en) * | 2020-09-21 | 2020-12-11 | 上海玄宇医疗器械有限公司 | Vein closing system |
| CN112057129B (en) * | 2020-09-21 | 2024-02-13 | 上海玄宇医疗器械有限公司 | Venous closure system |
| CN113198069A (en) * | 2021-06-11 | 2021-08-03 | 卫纳塞德(北京)医疗科技有限公司 | Lower limb varicose vein closing system |
| CN113262008A (en) * | 2021-06-11 | 2021-08-17 | 卫纳塞德(北京)医疗科技有限公司 | Novel glue spraying gun |
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