CN109107024A - Stricture dilation guiding device - Google Patents

Stricture dilation guiding device Download PDF

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Publication number
CN109107024A
CN109107024A CN201810869297.3A CN201810869297A CN109107024A CN 109107024 A CN109107024 A CN 109107024A CN 201810869297 A CN201810869297 A CN 201810869297A CN 109107024 A CN109107024 A CN 109107024A
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CN
China
Prior art keywords
air bag
stricture dilation
stricture
guiding device
rear end
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201810869297.3A
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Chinese (zh)
Other versions
CN109107024B (en
Inventor
李哲
李刚
王鹤
曲言军
马才
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Weigao Group Medical Polymer Co Ltd
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Shandong Weigao Group Medical Polymer Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Shandong Weigao Group Medical Polymer Co Ltd filed Critical Shandong Weigao Group Medical Polymer Co Ltd
Priority to CN201810869297.3A priority Critical patent/CN109107024B/en
Publication of CN109107024A publication Critical patent/CN109107024A/en
Application granted granted Critical
Publication of CN109107024B publication Critical patent/CN109107024B/en
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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/10Balloon catheters
    • A61M25/1002Balloon catheters characterised by balloon shape
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/0067Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/0068Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
    • A61M25/007Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M29/00Dilators with or without means for introducing media, e.g. remedies
    • A61M29/02Dilators made of swellable material
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/10Balloon catheters
    • A61M2025/1043Balloon catheters with special features or adapted for special applications
    • A61M2025/1093Balloon catheters with special features or adapted for special applications having particular tip characteristics
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2202/00Special media to be introduced, removed or treated
    • A61M2202/04Liquids
    • A61M2202/0496Urine
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2210/00Anatomical parts of the body
    • A61M2210/10Trunk
    • A61M2210/1078Urinary tract

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Child & Adolescent Psychology (AREA)
  • Vascular Medicine (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

The present invention provides stricture dilation guiding device, stricture dilation guide body including tubulose, stricture dilation guide body front end is equipped with guide portion, guide portion rear end is equipped with air bag, the stricture dilation guide body side wall of inside air bag is equipped with through-hole, the rear end of stricture dilation guide body is equipped with elastic sack body, and elastic sack body and stricture dilation guide body form the sealing space of an internal gassy or liquid.The guide portion of stricture dilation guide body front end and air bag pass through catheter front end and are located at outside catheter front end when the present invention uses, when ankylurethria, stricture dilation guiding device is travelled forward a small distance, then elastic sack body is squeezed, air bag is propped up, urethra side wall is strutted, catheter moves on.Then elastic sack body is unclamped, the gas or liquid reflux in frontal air bag are into elastic sack body, then repetitive operation, and catheter merging is easy.

Description

Stricture dilation guiding device
Technical field
The invention belongs to medical instruments fields, more particularly, to stricture dilation guiding device.
Background technique
As clinical common medical instrument, catheter is after being per urethram placed in human body by urine from bladder drainage to body Outside, main function is accurate recording urine volume, convenient for drainage and flushing etc., is played a significant role in clinic.
Catheter material mainly has silica gel, rubber, EVA, PVC etc., and head end and tube body are partially soft.But some patients are because of urine Situations such as road is narrow, hyperplasia of prostate, canceration, neck of urinary bladder hardening causes urethra internal resistance bigger than normal, greatly increases and sets pipe difficulty.It is existing There is clinical catheterization usually after disinfection orificium urethrae externum and surrounding tissue on the other hand orificium urethrae externum is fixed, another hand is direct or uses Tweezers etc. hold catheter, are inserted into from urethral orifice, when facing resistance bending and narrow situation, then need more firmly to be placed in, to trouble Person brings huge pain, causes the damage of mucous membrane of urethra, causes the destruction of urologic structure, increases the risk of urinary tract infection.
It is had the following problems during the catheter merging of existing clinic: when catheter head top marches at ankylurethria When need to increase external force propulsion, shear action can occur for apical head and stenosis urethra, even by narrow urethra, in urethra Film also suffers from serious contusion and creates conditions for microorganism infection, urethral catheterization tube outer surface coating lubricating oil etc., narrow in reply urethra It produces little effect when narrow.
It is clinically placed in catheter and replacement urinary catheter is sometimes extremely difficult, and easily cause violence insertion urinary catheter when institute band The secondary urethral injury come, such as via, bleeding, perforation, and then aggravated the severity of urethral disease, affected urethra Healing even results in the urethral injury of complexity and narrow, has seriously affected the life quality of patient.Therefore for above-mentioned trouble Person, in order to be avoided the occurrence of when being placed in catheter via generally requiring to be placed in catheter under the guidance of seal wire.And it existing leads Urinary catheter majority is front end sealing end, and the tube body of open rearward end, side is open and communicates with urethral catheterization lumen.This catheter is placed in seal wire When, seal wire is open by the side of catheter by lumen and is drawn, therefore cannot be guaranteed that the position of catheter and seal wire is parallel to each other, It causes guidance difficult, is placed in urethral catheterization tube failure.
The prior art mostly places seal wire inside catheter, and catheter is placed in urethra by intensity higher seal wire.
Summary of the invention
The stricture dilation guiding device that the object of the present invention is to provide a kind of structures simply, catheter merging is facilitated to operate.
The technical scheme is that
Stricture dilation guiding device, the stricture dilation guide body including tubulose, stricture dilation guide body front end are set There is guide portion, guide portion rear end is equipped with air bag, and the stricture dilation guide body side wall of inside air bag is equipped with through-hole, narrow expansion The rear end for opening guide body is equipped with elastic sack body, and elastic sack body and stricture dilation guide body form an inside and be full of gas The sealing space of body or liquid.
Stricture dilation guiding device of the present invention is in use, be inserted into the urine passageway of catheter, stricture dilation guiding device sheet The opening that the guide portion and air bag of body front end pass through catheter front end is located at outside catheter front end.In use, stricture dilation draws Seal wire can be played the role of by leading device, work as ankylurethria, catheter cannot by when, stricture dilation guiding device is travelled forward one Segment distance, then squeezes elastic sack body, by elastic sack body gas or liquid be pressed into air bag by through-hole, gas Capsule is propped up, and urethra side wall is strutted, catheter moves on.Then elastic sack body is unclamped, gas or liquid in frontal air bag It flows back into elastic sack body, then repetitive operation, until catheter front end enters inside bladder, fixation balloon is filled up, will be narrow Narrow expanding pilot device is withdrawn from.The generation of urethra side wall can be cut to avoid catheter when placing catheter using stricture dilation guiding device Shear force avoids causing to damage to urethra, highly-safe, and patient's no pain in placement process, and compliance is good.
The front end of the air bag is equipped with air bag retainer plate, and air bag retainer plate inner sidewall is outer with stricture dilation guide body Side wall is fixedly linked, and the front end face of air bag is recurvate curved surface.
The rear end face of air bag is the plane with stricture dilation guide body axis perpendicular.
The rear end face of air bag is recurvate curved surface.
Air bag rear end face is recurvate curved surface, when air bag struts, distance that the front end of catheter travels forward compared with Greatly, the time of catheter merging operation shortens, and reduces patient's pain.
The rear end of air bag is equipped with air bag retainer plate, the lateral wall of air bag retainer plate inner sidewall and stricture dilation guide body It is fixedly linked, the rear end face of air bag is the prone curved surface symmetrical with front end face.
The inner sidewall of air bag is equipped with the reinforcement protrusion of annular, reinforces protrusion and mutually hangs down with stricture dilation guide body axis Directly.
Reinforce protrusion can to avoid air bag full of when irregular deformation occur, avoid the air bag of the side of inner catheter compared with Small close to urethra side wall, and the air bag of the other side is larger, far from urethra side wall, so as to avoid catheter front end and urethra side Shearing force is generated between wall.
The guide portion front end face is paraboloid or ellipsoid.
Guide portion can introduce wherein by more narrow urethra, and by stricture dilation guiding device.Paraboloid or Ellipsoid is more smooth, when entering in urethra, will not generate shearing force to urethra side wall, reduce damage when being intubated to urethra Wound.
Elastic sack body front end is additionally provided with elastic bellows, the rear end of elastic bellows be in contact with elastic sack body outer surface or Connection, stricture dilation guide body rear end pass through elastic bellows and are connected with elastic sack body.
Spring substitution can be used in elastic bellows.
Elastic sack body is equipped with switch valve.
Can by switch valve into elastic sack body make-up gas or liquid.
The advantages and positive effects of the present invention are: due to the adoption of the above technical scheme, catheter merging is safer It is convenient, and the intensity of catheter can be further reduced, increase the flexibility of catheter, reduces patient's pain;With knot The advantages that structure is simple, and processing cost is low, highly-safe, the present invention is in addition to outer for ankylurethria expansion, it may also be used for esophagus, directly Intestines etc. other need to be inserted into the position of pipeline.
Detailed description of the invention
Fig. 1 is stricture dilation conductor structure schematic diagram of the invention
Fig. 2 is the structural schematic diagram of 1 air bag of stricture dilation guiding device embodiment of the invention
Fig. 3 is the structural schematic diagram of 2 air bag of stricture dilation guiding device embodiment of the invention
Fig. 4 is the structural schematic diagram of 3 air bag of stricture dilation guiding device embodiment of the invention
In figure:
1, stricture dilation guide body 2, guide portion 3, through-hole 4, air bag
8, elastic bellows 9, elastic sack body 10, switch valve 41, air bag retainer plate
42, air bag bottom 43, reinforcement protrusion
Specific embodiment
Embodiment 1
As shown in Figure 1 and Figure 2, stricture dilation guiding device, the stricture dilation guide body 1 including tubulose, stricture dilation draws 1 front end of device ontology is led equipped with guide portion 2,2 diameter of guide portion becomes larger from the front to the back, and 2 front end face of guide portion can be parabolic Face or ellipsoid, 2 rear end diameter of guide portion are equal to the outer diameter of stricture dilation guide body 1, and 2 rear end of guide portion is equipped with air bag 4, 1 side wall of stricture dilation guide body inside air bag 4 is equipped with through-hole 3, and the rear end of stricture dilation guide body 1 is equipped with bullet Property utricule 9, elastic sack body 9 and stricture dilation guide body 1 form the sealing space of an internal gassy or liquid.
As shown in Fig. 2, the front end of air bag 4 is equipped with air bag retainer plate 41,41 inner sidewall of air bag retainer plate draws with stricture dilation The lateral wall for leading device ontology 1 is fixedly linked, and the front end face of air bag 4 is recurvate curved surface.The rear end face of air bag 4 is also backward Curved curved surface.After air bag is once full of in this way, the distance that catheter front end travels forward is longer, can shorten catheter merging Time, mitigate patient pain.Preferably, the rear end face of air bag 4 is the curved surface matched with catheter front end face.
Further, 9 front end of elastic sack body is additionally provided with elastic bellows 8, the rear end of elastic bellows 8 and elastic sack body 9 It is connected or the rear end of elastic bellows is in contact with elastic sack body 9,1 rear end of stricture dilation guide body passes through elasticity Bellows 8 is connected with elastic sack body 9.In order to facilitate make-up gas or liquid, switch valve can be equipped on elastic sack body 9 10。
Embodiment 2
As shown in Figure 1, Figure 3, stricture dilation guiding device, the stricture dilation guide body 1 including tubulose, stricture dilation draws 1 front end of device ontology is led equipped with guide portion 2,2 diameter of guide portion becomes larger from the front to the back, and 2 front end face of guide portion can be parabolic Face or ellipsoid, 2 rear end diameter of guide portion are equal to the outer diameter of stricture dilation guide body 1, and 2 rear end of guide portion is equipped with air bag 4, 1 side wall of stricture dilation guide body inside air bag 4 is equipped with through-hole 3, and the rear end of stricture dilation guide body 1 is equipped with bullet Property utricule 9, elastic sack body 9 and stricture dilation guide body 1 form the sealing space of an internal gassy or liquid.
As shown in figure 3, the front end of air bag 4 is equipped with air bag retainer plate 41,41 inner sidewall of air bag retainer plate draws with stricture dilation The lateral wall for leading device ontology 1 is fixedly linked, and the front end face of air bag 4 is recurvate curved surface.The rear end face of air bag 4 be with it is narrow The perpendicular plane of expanding pilot device body axis 1.The urethra side wall internal diameter propped up of air bag 4 in this way is larger, can be to avoid urethral catheterization Shearing force is generated between pipe front end and urethra side wall, avoids that urethra side wall is caused to damage.
Further, 9 front end of elastic sack body is additionally provided with elastic bellows 8, the rear end of elastic bellows 8 and elastic sack body 9 It is connected or the rear end of elastic bellows is in contact with elastic sack body 9,1 rear end of stricture dilation guide body passes through elasticity Bellows 8 is connected with elastic sack body 9.In order to facilitate make-up gas or liquid, switch valve can be equipped on elastic sack body 9 10。
Embodiment 3
As Figure 1 and Figure 4, stricture dilation guiding device, the stricture dilation guide body 1 including tubulose, stricture dilation draws 1 front end of device ontology is led equipped with guide portion 2,2 diameter of guide portion becomes larger from the front to the back, and 2 front end face of guide portion can be parabolic Face or ellipsoid, 2 rear end diameter of guide portion are equal to the outer diameter of stricture dilation guide body 1, and 2 rear end of guide portion is equipped with air bag 4, 1 side wall of stricture dilation guide body inside air bag 4 is equipped with through-hole 3, and the rear end of stricture dilation guide body 1 is equipped with bullet Property utricule 9, elastic sack body 9 and stricture dilation guide body 1 form the sealing space of an internal gassy or liquid.
As shown in figure 4, the front end of air bag 4 is equipped with air bag retainer plate 41,41 inner sidewall of air bag retainer plate draws with stricture dilation The lateral wall for leading device ontology 1 is fixedly linked, and the front end face of air bag 4 is recurvate curved surface.The rear end of air bag 4 also is provided with air bag Retainer plate 41,41 inner sidewall of air bag retainer plate and the lateral wall of stricture dilation guide body 1 are fixedly linked, the rear end of air bag 4 Face is the prone curved surface symmetrical with front end face.The inner sidewall of air bag 4 is equipped with the reinforcement protrusion 43 of annular, reinforces convex Play 43 and 1 axis perpendicular of stricture dilation guide body.
Further, 9 front end of elastic sack body is additionally provided with elastic bellows 8, the rear end of elastic bellows 8 and elastic sack body 9 It is connected or the rear end of elastic bellows is in contact with elastic sack body 9,1 rear end of stricture dilation guide body passes through elasticity Bellows 8 is connected with elastic sack body 9.In order to facilitate make-up gas or liquid, switch valve can be equipped on elastic sack body 9 10。
The course of work of this example: stricture dilation guiding device of the present invention in use, be inserted into the urine passageway of catheter, The opening that the guide portion 2 and air bag 4 of 1 front end of stricture dilation guide body pass through catheter front end is located at outside catheter front end Portion.In use, stricture dilation guiding device 1 can play the role of seal wire, work as ankylurethria, catheter cannot by when, will be narrow Narrow expanding pilot device travels forward a small distance, then squeezes elastic sack body 9, by elastic sack body 9 gas or liquid lead to It crosses through-hole 3 to be pressed into air bag 4, air bag 4 is propped up, and urethra side wall is strutted, catheter moves on.Then elasticity is unclamped Utricule 9, the gas or liquid reflux in frontal air bag 4 are into elastic sack body 9, then repetitive operation, until catheter front end into Enter to inside bladder, fixation balloon fills up, and stricture dilation guiding device is withdrawn from.When placing catheter using stricture dilation guiding device Shearing force can be generated to urethra side wall to avoid catheter, avoid that urethra is caused to damage, it is highly-safe and sick in placement process People's no pain, compliance are good.
The embodiments of the present invention have been described in detail above, but content is only the preferred embodiment of the present invention, It should not be considered as limiting the scope of the invention.Any changes and modifications in accordance with the scope of the present application, It should still be within the scope of the patent of the present invention.

Claims (8)

1. stricture dilation guiding device, it is characterised in that: the stricture dilation guide body including tubulose, stricture dilation guiding device sheet Body front end is equipped with guide portion, and guide portion rear end is equipped with air bag, and the stricture dilation guide body side wall of inside air bag is equipped with logical Hole, the rear end of stricture dilation guide body are equipped with elastic sack body, and elastic sack body and stricture dilation guide body form one The sealing space of internal gassy or liquid.
2. stricture dilation guiding device according to claim 1, it is characterised in that: the front end of the air bag is fixed equipped with air bag Circle, air bag retainer plate inner sidewall and the lateral wall of stricture dilation guide body are fixedly linked, and the front end face of air bag is curved backward Bent curved surface.
3. stricture dilation guiding device according to claim 2, it is characterised in that: the rear end face of air bag is to draw with stricture dilation Lead the perpendicular plane of device body axis.
4. stricture dilation guiding device according to claim 2, it is characterised in that: the rear end face of air bag is recurvate song Face.
5. stricture dilation guiding device according to claim 2, it is characterised in that: the rear end of air bag is equipped with air bag retainer plate, Air bag retainer plate inner sidewall and the lateral wall of stricture dilation guide body are fixedly linked, and the rear end face of air bag is and front end face phase Symmetrical prone curved surface.
6. stricture dilation guiding device according to claim 5, it is characterised in that: the inner sidewall of air bag is equipped with adding for annular Strong protrusion, reinforces protrusion and stricture dilation guide body axis perpendicular.
7. stricture dilation guiding device according to claim 1, it is characterised in that: guide portion diameter gradually becomes from the front to the back Greatly, guide portion rear end diameter is equal to the outer diameter of stricture dilation guide body.
8. stricture dilation guiding device according to claim 7, it is characterised in that: the guide portion front end face be paraboloid or Ellipsoid.
CN201810869297.3A 2018-08-02 2018-08-02 Stenosis dilation guide Active CN109107024B (en)

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Application Number Priority Date Filing Date Title
CN201810869297.3A CN109107024B (en) 2018-08-02 2018-08-02 Stenosis dilation guide

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Application Number Priority Date Filing Date Title
CN201810869297.3A CN109107024B (en) 2018-08-02 2018-08-02 Stenosis dilation guide

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CN109107024A true CN109107024A (en) 2019-01-01
CN109107024B CN109107024B (en) 2024-04-16

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114425106A (en) * 2020-10-14 2022-05-03 于从军 Drainage device, drainage method and drainage device manufacturing method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1062966A1 (en) * 1999-06-25 2000-12-27 Terumo Kabushiki Kaisha Balloon for dilating a stricture and balloon catheter
CN203379471U (en) * 2013-06-29 2014-01-08 何宗海 Urethral dilator
CN207024390U (en) * 2017-02-06 2018-02-23 伍星 A kind of expanding catheter
CN209967373U (en) * 2018-08-02 2020-01-21 山东威高集团医用高分子制品股份有限公司 Stenosis dilatation guide device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1062966A1 (en) * 1999-06-25 2000-12-27 Terumo Kabushiki Kaisha Balloon for dilating a stricture and balloon catheter
CN203379471U (en) * 2013-06-29 2014-01-08 何宗海 Urethral dilator
CN207024390U (en) * 2017-02-06 2018-02-23 伍星 A kind of expanding catheter
CN209967373U (en) * 2018-08-02 2020-01-21 山东威高集团医用高分子制品股份有限公司 Stenosis dilatation guide device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114425106A (en) * 2020-10-14 2022-05-03 于从军 Drainage device, drainage method and drainage device manufacturing method
CN114425106B (en) * 2020-10-14 2024-03-29 于从军 Drainage device, drainage method and drainage device manufacturing method

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