CN109758205A - A kind of esophago-tracheal fistula plug rack - Google Patents
A kind of esophago-tracheal fistula plug rack Download PDFInfo
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- CN109758205A CN109758205A CN201910164408.5A CN201910164408A CN109758205A CN 109758205 A CN109758205 A CN 109758205A CN 201910164408 A CN201910164408 A CN 201910164408A CN 109758205 A CN109758205 A CN 109758205A
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- bracket
- umbrella
- mushroom shape
- intermediate support
- overlay film
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Abstract
A kind of esophago-tracheal fistula plug rack, it is characterized by comprising umbrella bracket (1), mushroom shape bracket (2) and intermediate supports (3), it is integral between umbrella bracket (1) and mushroom shape bracket (2) by intermediate support (3) connection, the outside table of umbrella bracket (1), mushroom shape bracket (2) and intermediate support (3) is designed with overlay film；Intermediate support (3) is tubular structure, and both ends are formed by overlay film and sealed, and umbrella bracket (1) expands into umbrella, and mushroom shape bracket (2) expands into cap shape.The present invention is single layer structure due to the far and near both ends of esophago-tracheal fistula plug rack, compared with blood vessel blocking device disk-like structure, weight is relatively light, and fistula mouth surrounding tissue necrosis risk reduces, furthermore oesophagus end is bigger compared with tracheae end, and plugging device falls into tracheae risk and further decreases.
Description
Technical field
The present invention relates to minimal invasive techniques field, specially a kind of esophago-tracheal fistula plug rack.
Background technique
2006, the report first case atrial septum plugging device such as Paulo RS was used to block the esophago-tracheal fistula of size 5mm, art
Leave hospital within 5 days afterwards.It is blocked from tracheae through conduit, wound is small, easy to operate, significant effect.It is then big by atrial septal defect device
The umbrella shape device and other similar machine plugging device for measuring exploitation are used to occlude esophago-tracheal fistula, but there are still following disadvantages:
(1) plugging device proximal end, distally have end socket or even if concaving towards inside, once the movement such as patient's cough, makes the plugging device be in
Pyriform, easily damage surrounding tissue, cause the causes such as big bleeding sudden death.
(2) plugging device corrosion-vulnerable, secondly plugging device can cause inflammatory reaction as foreign matter, and general plugging device can not support
It is imperial.
(3) non-recovery device can not internal medicine conservative treatment taking-up once merging.
(4) general plugging device transtracheal merging is influenced to rescue channel, and cannot be placed under doctor's direct-view at any time, there is one
Determine risk.
(5) oesophagus ring week distracted therapeutic modality is seriously affected by patient's daily life, painful time using conventional stent
It is long, influence patients ' life quality.
(6) plugging device ability weight, plugging device, which oppress surrounding tissue, causes ischemic necrosis even plugging device to fall off, and blocks gas
Road is lethal.
Summary of the invention
The purpose of the present invention is to provide a kind of esophago-tracheal fistula plug racks, to solve in above-mentioned background technique
Many defects.The existing deficiency that there is harm to surrounding tissue for blocking esophago-tracheal fistula plugging device is overcome, makes to fill
Recyclable, raising equipment safety is set, improvement minimal invasive treatment's treatment provides the new safely and effectively esophago-tracheal fistula of one kind and treats
Mode.
To achieve the above object, the invention provides the following technical scheme:
A kind of esophago-tracheal fistula plug rack, it is characterised in that including umbrella bracket (1), mushroom shape bracket (2) and intermediate branch
Frame (3) is integral between umbrella bracket (1) and mushroom shape bracket (2) by intermediate support (3) connection, umbrella bracket (1), mushroom
The outside table of shape bracket (2) and intermediate support (3) is designed with overlay film；Intermediate support (3) is tubular structure, and both ends are by covering
Film forms sealing, and umbrella bracket (1) expands into umbrella, and mushroom shape bracket (2) expands into cap shape.
The umbrella bracket (1) includes umbrella support skeleton (101) and umbrella bracket overlay film (100), umbrella support skeleton
It (101) is dispersed structure or braiding structure, umbrella bracket overlay film (100) is covered on umbrella support skeleton (101) surface.
The mushroom shape bracket (2) includes mushroom shape bracket radial direction skeleton (21) and mushroom shape bracket overlay film (20), and mushroom shape bracket covers
Film (20) is arranged on mushroom shape bracket radial direction skeleton (21) surface, and mushroom shape bracket radial direction skeleton (21) includes mushroom shape bracket longitudinal framework
(23), mushroom shape mount proximal end skeleton (24) and mushroom shape rack far end skeleton (25).
The intermediate support (3) includes intermediate support skeleton (31) and intermediate support overlay film (30), intermediate support skeleton
(31) both ends connect and are integral with umbrella bracket (1) and mushroom shape bracket (2) respectively, and intermediate support skeleton (31) surface is equipped with
Intermediate support overlay film (30).
One end of the intermediate support (3) is equipped with oesophagus end seal and blocks up overlay film (4), and the other end of intermediate support (3) is equipped with gas
Pipe end blocks overlay film (5).
The umbrella bracket (1) is metal wire structure composition, the material of the wire by bio-compatibility Nitinol,
Bioresorbable polymers, formative memory polymer can reabsorb metal, any one or more in biocompatible metal
It is composed；
Mushroom shape bracket (2) is metal wire structure composition, and the material of the wire is by bio-compatibility Nitinol, biology
Resorbable polymers, formative memory polymer can reabsorb metal, any one or more combination in biocompatible metal
It forms；
Intermediate support (3) is metal wire structure composition, and the material of the wire is by bio-compatibility Nitinol, biology
Resorbable polymers, formative memory polymer can reabsorb metal, any one or more combination in biocompatible metal
It forms；The wire outer surface is equipped with corrosion-resistant coating, and corrosion-resistant coating is made of silicone, and antimicrobial coating is by containing organosilicon
Cationic steroid, minocycline, rifampin, gentamicin, vancomycin or hydrophobic material or combination.
Compared with prior art, the beneficial effects of the present invention are:
The present invention is since the far and near both ends of esophago-tracheal fistula plug rack are single layer structure, with blood vessel blocking device disk-like structure
It compares, weight is relatively light, and fistula mouth surrounding tissue necrosis risk reduces, and furthermore oesophagus end is bigger compared with tracheae end, and plugging device is fallen into
Tracheae risk further decreases.Bracket will not encounter perienchyma, and in stomach even if plugging device deformation resembles a pear in shape without end socket
The lower release of mirror direct-view, makes doctor operate relatively reliable.Mount proximal end is equipped with exhausting line, internal medicine conservative treatment can take at any time
Out, even if falling into intratracheally, foreign body forceps can be used to take out bracket.Conventional stent is substituted by oesophagus ring week distracted therapeutic modality, nothing
Oesophagus is oppressed, is palliated the agonizing sufferings, patients ' life quality is improved.It is lighter compared with plugging device quality, smaller, surrounding group is oppressed to surrounding tissue
It is low to knit ischemic necrosis risk.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment 1 of bracket of the present invention；
Fig. 2 is the side view of the embodiment 1 of bracket of the present invention；
Fig. 3 is one of the schematic perspective view of the embodiment 1 of bracket of the present invention；
Fig. 4 is one of the schematic perspective view of the embodiment 1 of bracket of the present invention；
Fig. 5 is the structural schematic diagram of the embodiment 2 of bracket of the present invention；
Fig. 6 is the schematic perspective view of the embodiment 2 of bracket of the present invention；
Fig. 7 is that the bracket of bracket of the present invention is located at the cross section structure schematic diagram in device for posting；
Fig. 8 is the cross section structure schematic diagram that bracket of the invention is located at that part is located at part unfolded state in device for posting.
Fig. 9 a is one of the schematic cross-sectional view of device for posting of the invention.
Fig. 9 b is the two of the schematic cross-sectional view of device for posting of the invention.
Figure 10 is the decomposition texture schematic diagram of device for posting of the invention.
Figure 11 is the integral installation distribution structure schematic diagram of device for posting of the invention.
Figure 12 is the schematic diagram of one of decomposition step that bracket of the invention is placed in esophago-tracheal fistula using device for posting.
Figure 13 is two schematic diagram of the decomposition step that bracket of the invention is placed in esophago-tracheal fistula using device for posting.
Figure 14 is three schematic diagram of the decomposition step that bracket of the invention is placed in esophago-tracheal fistula using device for posting.
Figure 15 is one of the structural schematic diagram of taper rubber plug of the invention.
Figure 16 is the second structural representation of taper rubber plug of the invention.
Figure 17 is the third structural representation of taper rubber plug of the invention.
Figure 18 is the four of the structural schematic diagram of taper rubber plug of the invention.
Figure 19 is the structural schematic diagram of another esophago-tracheal fistula plug rack of the invention.
Figure 20 is the structural schematic diagram of the first target and the second target of the invention.
In figure: 1, umbrella bracket；100, umbrella bracket overlay film；101, umbrella support skeleton；2, mushroom shape bracket；20, mushroom shape
Bracket overlay film；21, mushroom shape bracket radial direction skeleton；23, mushroom shape bracket longitudinal framework；24, mushroom shape mount proximal end skeleton；25, mushroom shape
Rack far end skeleton；3, intermediate support；30, intermediate support overlay film；31, intermediate support skeleton；4, oesophagus end seal blocks up overlay film；5, gas
Pipe end blocks overlay film；7, exhausting line；8, back handle；80, back handle rear end cap；81, back handle drive end bearing bracket；9, rear push-rod；90, after
Push rod fixing seat；91, interior connection hose；92, preceding push rod；93, preceding push top；94, flexible conduit；110, rear push-rod hook knob；
111, conical inboard wall；112, female Luer pipe；113, taper rubber plug；114, inner cavity；115, front hand grip；116, sleeve is connected；
117, front hand grip drive end bearing bracket；118, housing hose connecting tube；1131, through-hole；1132, tapered surface；1133, cross recess；1A, mirror image
Umbrella bracket；119, the first target；120, the second target.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the equipment of indication or suggestion meaning or element must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
Term " proximal end " indicates that, apart from the closer one end of operator, " distal end " is indicated apart from the farther away one end of operator.
Such as Fig. 1 to Figure 20:
Embodiment 1
As shown in Figure 1 to Figure 4, a kind of esophago-tracheal fistula plug rack, it is characterised in that including umbrella bracket (1), mushroom shape bracket
(2) and intermediate support (3) it, is integral between umbrella bracket (1) and mushroom shape bracket (2) by intermediate support (3) connection, umbrella
The outside table of bracket (1), mushroom shape bracket (2) and intermediate support (3) is designed with overlay film；Intermediate support (3) is tubular structure,
Both ends are formed by overlay film and are sealed, and umbrella bracket (1) expands into umbrella, and mushroom shape bracket (2) expands into cap shape.
The umbrella bracket (1) includes umbrella support skeleton (101) and umbrella bracket overlay film (100), umbrella support skeleton
It (101) is dispersed structure or braiding structure, umbrella bracket overlay film (100) is covered on umbrella support skeleton (101) surface.
The mushroom shape bracket (2) includes mushroom shape bracket radial direction skeleton (21) and mushroom shape bracket overlay film (20), and mushroom shape bracket covers
Film (20) is arranged on mushroom shape bracket radial direction skeleton (21) surface, and mushroom shape bracket radial direction skeleton (21) includes mushroom shape bracket longitudinal framework
(23), mushroom shape mount proximal end skeleton (24) and mushroom shape rack far end skeleton (25).
The intermediate support (3) includes intermediate support skeleton (31) and intermediate support overlay film (30), intermediate support skeleton
(31) both ends connect and are integral with umbrella bracket (1) and mushroom shape bracket (2) respectively, and intermediate support skeleton (31) surface is equipped with
Intermediate support overlay film (30).
One end of the intermediate support (3) is equipped with oesophagus end seal and blocks up overlay film (4), and the other end of intermediate support (3) is equipped with gas
Pipe end blocks overlay film (5).
The umbrella bracket (1) is metal wire structure composition, the material of the wire by bio-compatibility Nitinol,
Bioresorbable polymers, formative memory polymer can reabsorb metal, any one or more in biocompatible metal
It is composed；
Mushroom shape bracket (2) is metal wire structure composition, and the material of the wire is by bio-compatibility Nitinol, biology
Resorbable polymers, formative memory polymer can reabsorb metal, any one or more combination in biocompatible metal
It forms；
Intermediate support (3) is metal wire structure composition, and the material of the wire is by bio-compatibility Nitinol, biology
Resorbable polymers, formative memory polymer can reabsorb metal, any one or more combination in biocompatible metal
It forms.
The wire outer surface is equipped with corrosion-resistant coating, and corrosion-resistant coating is made of silicone, and antimicrobial coating is by containing
Machine silicon cationic steroid, minocycline, rifampin, gentamicin, vancomycin or hydrophobic material or combination.
Exhausting line 7 is connected on umbrella bracket (1), exhausting line 7 can be the wire of above-mentioned material, or bio-compatible
The good non-metallic material of property.
Embodiment 2
Such as Fig. 5, Fig. 6, a kind of esophago-tracheal fistula plug rack, wire using the braiding structure different from embodiment 1 and
Form, it is characterised in that including umbrella bracket (1), mushroom shape bracket (2) and intermediate support (3), umbrella bracket (1) and mushroom shape bracket
(2) it is integral between by intermediate support (3) connection, the outside of umbrella bracket (1), mushroom shape bracket (2) and intermediate support (3)
Table is designed with overlay film；Intermediate support (3) is tubular structure, and both ends are formed by overlay film and sealed, and umbrella bracket (1) expands into
Umbrella, mushroom shape bracket (2) expand into cap shape.
Embodiment 3
If Fig. 7 is that bracket of the invention is located at the cross section structure schematic diagram in device for posting；Bracket is integrally folded in by compression
In the tubular structure of device for posting.It is transported to target internal fistula region.
Such as Fig. 8, it is located at the cross section structure schematic diagram that part is located at part unfolded state in device for posting for bracket of the invention.
Bracket is located at esophagus side or one end of tracheae side and is placed into device submitting, is unfolded under own resilient and tension memory, is then placed in
During device bounces back, the bracket other end is sent out to and discharged expansion, completes internal fistula and blocks.
Embodiment 4
Fig. 9 a is one of the schematic cross-sectional view of device for posting of the invention.Fig. 9 b is the section view knot of device for posting of the invention
The two of structure schematic diagram.Figure 10 is the decomposition texture schematic diagram of device for posting of the invention.Figure 11 is the entirety of device for posting of the invention
Assembling structure schematic diagram.
A kind of esophago-tracheal fistula plug rack embedded device, back handle (8), rear push-rod (9) and front hand grip (115) are described
Rear push-rod (9) is fixedly connected with back handle (8), and rear push-rod (9) runs through out of front hand grip (115), and the distal end of rear push-rod (9) passes through
Push rod (92) before interior connection hose (91) connects, the distal end of preceding push rod (92) is connected with mushroom-shaped preceding push top (93), preceding push rod
(92) it is arranged with flexible conduit (94) outside, front hand grip (115) is proximally by threaded connection rear push-rod hook knob (110), pusher
Rod lock knob (110) is distally equipped with taper rubber plug (113), the conical inboard wall of taper rubber plug (113) and front hand grip (115) inside
(111) it contacts.
Rear push-rod (9) is metallic rod, and preceding push top (93), back handle (8) and front hand grip (115) can be used plastics and pass through mold
It is made.Interior connection hose (91) and flexible conduit (94) are the hose of flexible material.
Back handle (8) proximal end is equipped with back handle rear end cap (80), and back handle (8) is distally connected with back handle drive end bearing bracket
(81), rear push-rod (9) is fixedly connected by rear push-rod fixing seat (90) with back handle (8)；
The front hand grip (115) is equipped with the female Luer pipe (112) being connected to its inner cavity (114), and front hand grip (115) is remote
By connection sleeve (116) connection front hand grip drive end bearing bracket (117), front hand grip drive end bearing bracket (117) distally sets flexible boot hose company at end
It takes over (118)；Flexible conduit (94) are connected in housing hose connecting tube (118)；Taper rubber plug (113) is rubber material, is had
Elasticity, taper rubber plug (113) are equipped with for rear push-rod (9) perforative through-hole (1131), taper rubber plug (113) have in taper
The tapered surface (1132) of wall (111) contact, offers cross recess (1133) on taper rubber plug (113).
Female Luer pipe (112) can connect syringe etc., can inner cavity (114) be rinsed or be sobbed.
Embodiment 5
A kind of esophago-tracheal fistula plug rack method for posting, it is characterised in that include the following steps:
The specific location of fistula mouth is positioned under S1, gastroscope；
S2, such as Figure 12 clamp the flexible conduit (94) equipped with esophago-tracheal fistula plug rack through gastroscope under gastroscope monitoring
Road is placed in fistula mouth；
S3, such as Figure 13 push back handle (8) to distal end, and then pass through preceding push top (93) for esophago-tracheal fistula plug rack
Mushroom shape bracket (2) release flexible conduit (94), discharge mushroom shape bracket (2) in tracheae side；
S4, rotation rear push-rod hook knob (110), taper rubber plug (113) are compressed axially, in conical inboard wall (111)
Under effect, so that taper rubber plug (113) holds rear push-rod (9) tightly, so that rear push-rod (9) and front hand grip (115) are fixed；
S5, Figure 14 proximally persistently move front hand grip (115), stop mushroom shape bracket (2) by inner surface of trachea, into
And the umbrella bracket (1) of esophago-tracheal fistula plug rack is drawn out to come, and be released to oesophagus side；
S6, confirmation esophago-tracheal fistula plug rack withdraw flexible conduit (94), again gastroscopic observation, nothing after ideal position
It is abnormal to retreat mirror.
Embodiment 6
Figure 19 is the structural schematic diagram of another esophago-tracheal fistula plug rack of the invention.
Mushroom shape bracket (2) can also be mirrored umbrella bracket (1A) substitution, and both ends mirror image is consistent.
Embodiment 7
It is the structural schematic diagram of the first target and the second target of the invention such as Figure 20.Rear push-rod is additionally provided with first on (9)
Target (119) and the second target (120), the first target (119) and the second target (120) are respectively yellow graduation mark and red quarter
Line is spent, respectively represents and starts to discharge bronchial collateral frame, and completes release bronchial collateral frame.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
For personnel it should be appreciated that the present invention is not limited to the above embodiments, described in the above embodiment and specification is only the present invention
Preference, be not intended to limit the invention, without departing from the spirit and scope of the present invention, the present invention also has various
Changes and improvements, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by institute
Attached claims and its equivalent thereof.
Claims (6)
1. a kind of esophago-tracheal fistula plug rack, it is characterised in that including umbrella bracket (1), mushroom shape bracket (2) and intermediate support
(3), it is integral between umbrella bracket (1) and mushroom shape bracket (2) by intermediate support (3) connection, umbrella bracket (1), mushroom shape
The outside table of bracket (2) and intermediate support (3) is designed with overlay film；Intermediate support (3) is tubular structure, and both ends pass through overlay film
Sealing is formed, umbrella bracket (1) expands into umbrella, and mushroom shape bracket (2) expands into cap shape.
2. esophago-tracheal fistula plug rack according to claim 1, it is characterised in that: the umbrella bracket (1) includes umbrella
Shape support skeleton (101) and umbrella bracket overlay film (100), umbrella support skeleton (101) are dispersed structure or braiding structure, umbrella
Bracket overlay film (100) is covered on umbrella support skeleton (101) surface.
3. esophago-tracheal fistula plug rack according to claim 1, it is characterised in that: the mushroom shape bracket (2) includes mushroom
Shape bracket radial direction skeleton (21) and mushroom shape bracket overlay film (20), mushroom shape bracket overlay film (20) are arranged in mushroom shape bracket radial direction skeleton
(21) surface, mushroom shape bracket radial direction skeleton (21) include mushroom shape bracket longitudinal framework (23), mushroom shape mount proximal end skeleton (24) and
Mushroom shape rack far end skeleton (25).
4. esophago-tracheal fistula plug rack according to claim 1, it is characterised in that: during the intermediate support (3) includes
Between support skeleton (31) and intermediate support overlay film (30), the both ends of intermediate support skeleton (31) respectively with umbrella bracket (1) and mushroom
Shape bracket (2) connection is integral, and intermediate support skeleton (31) surface is equipped with intermediate support overlay film (30).
5. esophago-tracheal fistula plug rack according to claim 1, it is characterised in that: one end of the intermediate support (3)
Overlay film (4) are blocked up equipped with oesophagus end seal, the other end of intermediate support (3) is equipped with tracheae end seal and blocks up overlay film (5).
6. esophago-tracheal fistula plug rack according to claim 1, it is characterised in that: the umbrella bracket (1) is metal
Silk structure composition, the material of the wire are gathered by bio-compatibility Nitinol, bioresorbable polymers, formative memory
Close object, metal can be reabsorbed, any one or more in biocompatible metal is composed；
Mushroom shape bracket (2) is metal wire structure composition, and the material of the wire can be again by bio-compatibility Nitinol, biology
Absorbing polymeric, formative memory polymer, can reabsorb metal, any one or more combination in biocompatible metal and
At；
Intermediate support (3) is metal wire structure composition, and the material of the wire can be again by bio-compatibility Nitinol, biology
Absorbing polymeric, formative memory polymer, can reabsorb metal, any one or more combination in biocompatible metal and
At；The wire outer surface is equipped with corrosion-resistant coating, and corrosion-resistant coating is made of silicone, and antimicrobial coating is by containing organosilicon sun
Ion steroids, minocycline, rifampin, gentamicin, vancomycin or hydrophobic material or combination.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018113021396 | 2018-11-02 | ||
| CN201811302139 | 2018-11-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109758205A true CN109758205A (en) | 2019-05-17 |
Family
ID=66456690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910164408.5A Pending CN109758205A (en) | 2018-11-02 | 2019-03-05 | A kind of esophago-tracheal fistula plug rack |
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| Country | Link |
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| CN (1) | CN109758205A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110477969A (en) * | 2019-07-08 | 2019-11-22 | 江苏省肿瘤医院 | A kind of fistula hole plugging system |
| CN110507373A (en) * | 2019-07-08 | 2019-11-29 | 江苏省肿瘤医院 | A kind of medical plugging system |
| WO2020177692A1 (en) * | 2018-11-02 | 2020-09-10 | 张国新 | Blocking stent, implantation device thereof and implantation method therefor |
-
2019
- 2019-03-05 CN CN201910164408.5A patent/CN109758205A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020177692A1 (en) * | 2018-11-02 | 2020-09-10 | 张国新 | Blocking stent, implantation device thereof and implantation method therefor |
| CN110477969A (en) * | 2019-07-08 | 2019-11-22 | 江苏省肿瘤医院 | A kind of fistula hole plugging system |
| CN110507373A (en) * | 2019-07-08 | 2019-11-29 | 江苏省肿瘤医院 | A kind of medical plugging system |
| CN110477969B (en) * | 2019-07-08 | 2023-07-21 | 江苏省肿瘤医院 | Fistula plugging system |
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