CN109350322B - Double-bracket implantation device - Google Patents
Double-bracket implantation device Download PDFInfo
- Publication number
- CN109350322B CN109350322B CN201811489232.2A CN201811489232A CN109350322B CN 109350322 B CN109350322 B CN 109350322B CN 201811489232 A CN201811489232 A CN 201811489232A CN 109350322 B CN109350322 B CN 109350322B
- Authority
- CN
- China
- Prior art keywords
- tube
- bracket
- pipe
- inner tube
- outer tube
- 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.)
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Links
- 238000002513 implantation Methods 0.000 title abstract description 10
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 238000002347 injection Methods 0.000 claims description 15
- 239000007924 injection Substances 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000009977 dual effect Effects 0.000 claims 1
- 238000004904 shortening Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 238000002560 therapeutic procedure Methods 0.000 description 3
- 239000007943 implant Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 230000003211 malignant effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/962—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
- A61F2/966—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention discloses a double-bracket implantation device which comprises an inner tube, a middle tube and an outer tube which are sequentially arranged from inside to outside, wherein the distal end of the inner tube is connected with a soft head in a penetrating way, a first bracket is compressed in a space between the outer tube and the inner tube, and two ends of the first bracket are respectively abutted against the proximal end of the soft head and the distal end of the middle tube; a short push pipe is sleeved between the middle pipe and the inner pipe, a second bracket is compressed in the space between the middle pipe and the inner pipe, and two ends of the second bracket are abutted with the distal end of the middle pipe and the distal end of the short push pipe; the outer tube can move back and forth relative to the middle tube, and the outer tube is retracted or the middle tube and the inner tube move forwards together, so that the first bracket is released from the space between the outer tube and the inner tube and the original state is restored; after the first bracket is released, the short pushing tube moves forward, and the second bracket is pushed into the space between the outer tube and the inner tube to replace the first bracket. The invention can release two stents at one time, thereby greatly shortening the stent release operation time.
Description
Technical Field
The invention relates to a stent implantation device in the field of medical instruments, in particular to a double-stent implantation device.
Background
The interventional therapy is an emerging subject integrating image diagnosis and clinical treatment, and is guided by the image equipment to be guided into a focus of a human body through a natural duct or a tiny wound of the human body for minimally invasive treatment, so that the interventional therapy has the advantages of accuracy, safety, high efficiency, wide indication, few complications, small wound, rapid postoperative recovery and the like, has become the first-choice treatment method of some diseases, and is one of three clinical post subjects parallel to the traditional internal and external subjects. The common implant enters the bent angle of the human body cavity, and can not pass through the bent angle continuously, so that the risk of the operation is increased greatly or the operation fails.
Therefore, there is a need to solve the above problems.
Disclosure of Invention
The invention aims to: the invention aims to provide a double-bracket implantation device capable of implanting two brackets at one time, so that the operation can be smoothly, safely and efficiently performed.
The technical scheme is as follows: in order to achieve the above purpose, the invention discloses a double-bracket implantation device, which comprises an inner tube, a middle tube and an outer tube which are sequentially arranged from inside to outside, wherein the distal end of the inner tube is connected with a soft head in a penetrating way, a first bracket is compressed in a space between the outer tube and the inner tube, and two ends of the first bracket are respectively abutted against the proximal end of the soft head and the distal end of the middle tube; a short push pipe is sleeved between the middle pipe and the inner pipe, a second bracket is compressed in the space between the middle pipe and the inner pipe, and two ends of the second bracket are abutted with the distal end of the middle pipe and the distal end of the short push pipe; the outer tube can move back and forth relative to the middle tube, and the outer tube is retracted or the middle tube and the inner tube move forwards together, so that the first bracket is released from the space between the outer tube and the inner tube and the original state is restored; after the first bracket is released, the short pushing tube moves forward, and the second bracket is pushed into the space between the outer tube and the inner tube to replace the first bracket.
The proximal end of the outer tube is connected with a front handle, and the front handle can move back and forth along the outer wall of the middle tube under the drive of the front handle; the proximal ends of the middle tube and the inner tube are connected with a rear handle, and the middle tube and the inner tube can move back and forth along the inner wall of the outer tube together under the drive of the rear handle; the outer tube is retracted or the middle tube and the inner tube are advanced together so that the first stent is released from the space between the outer tube and the inner tube and returns to its original state.
Preferably, the rear handle is connected with a liquid injection joint which is communicated with the inner tube.
Furthermore, the inner wall of the far end of the middle tube is provided with a stop block, and the wall thickness of the position, where the short pushing tube and the second bracket are arranged, of the middle tube is thin.
Further, the short pushing pipe is provided with a pushing-assisting ring extending out of the outer pipe, and the middle pipe and the outer pipe are respectively provided with a pushing-assisting chute corresponding to the pushing-assisting ring.
Preferably, a boosting steel pipe is sleeved between the middle pipe and the inner pipe.
Furthermore, the inner tube is a multi-cavity tube, a guide wire channel and a liquid injection channel are arranged in the inner tube, and a guide wire hole communicated with the guide wire channel, a liquid injection hole communicated with the liquid injection channel and a connecting hole connected with the inner tube are arranged on the soft head.
The beneficial effects are that: compared with the prior art, the invention has the following remarkable advantages: firstly, the invention can release two brackets at one time, thereby greatly shortening the bracket release operation time, reducing the pain and the probability of infection caused by the secondary entering and exiting of the implanter for patients, saving the cost of the implantation device and improving the operation safety; secondly, the inner tube is designed into a multi-cavity tube, so that the traditional interventional therapy is changed, multiple instruments are required to be repeatedly and alternately replaced in the operation process, the time is long, the difficulty is high, and malignant medical accidents such as perforation and the like are easy to occur; the intervention operation is greatly simplified, the operation safety is improved, the number of the used instruments is reduced, and the medical expense of a patient is further reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a portion of a push tube and a middle tube according to the present invention;
FIG. 3 is a schematic cross-sectional view of a soft head according to the present invention;
fig. 4 is an end view of a soft head according to the present invention.
Detailed Description
The technical scheme of the invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, the double-stent implantation device of the present invention comprises an inner tube 1, a middle tube 2, an outer tube 3, a soft head 4, a first stent 5, a short push tube 6, a second stent 7, a front handle 8, a rear handle 9, a liquid injection joint 10 and a boost tube 11. The inner tube 1, the middle tube 2 and the outer tube 3 are sequentially arranged from inside to outside, a first bracket 5 is compressed in a space between the outer tube 3 and the inner tube 1, and two ends of the first bracket 5 are respectively abutted against the proximal end of the soft head 4 and the distal end of the middle tube 2; the proximal end of the outer tube 3 is connected with a front handle 8, and the front handle 8 can move back and forth along the outer wall of the middle tube 2 under the drive of the front handle 8; the proximal ends of the middle tube 2 and the inner tube 1 are connected with a rear handle 9, and the middle tube 2 and the inner tube 1 can move back and forth along the inner wall of the outer tube 3 together under the drive of the rear handle 9; the outer tube 3 is retracted or the middle tube 2 and the inner tube 1 are advanced together so that the first stent 5 is released from the space between the outer tube 3 and the inner tube 1 and restored to the original state. A short push pipe 6 is sleeved between the middle pipe 2 and the inner pipe 1, a push-assisting ring 601 extending out of the outer pipe is arranged on the short push pipe 6, and push-assisting sliding grooves corresponding to the push-assisting ring 601 are respectively arranged on the middle pipe 2 and the outer pipe 3. A second bracket 7 is compressed in the space between the middle tube 2 and the inner tube 1, and two ends of the second bracket 7 are abutted against the distal end of the middle tube 2 and the distal end of the short push tube 6; after the first bracket 5 is released, the booster ring 601 is pushed forward along the booster chute, the short push tube 6 is moved forward, the second bracket 7 is pushed into the space between the outer tube 3 and the inner tube 1 to replace the first bracket 5, the action of releasing the first bracket 5 is repeated, and the second bracket 7 can be released again. The wall thickness of the inner wall of the middle pipe 2 is different, the wall thickness of the position, where the second bracket and the short push pipe 6 are arranged in the middle pipe 2, is thinner, a boosting steel pipe 11 is sleeved between the second half section of the middle pipe 2 and the inner pipe 1, and the boosting steel pipe 11 is used for reinforcing the strength of the middle pipe 2 and the inner pipe 1 so that when the first bracket 5 is pushed out from the outer pipe 3, the middle pipe 2 and the inner pipe 1 provide enough supporting force without bending. The distal inner wall of the middle tube 2 is provided with a stop block 201, and the stop block 201 can block the second bracket 7 from sliding out of the middle tube when the middle tube is pushed forward in the process of releasing the first bracket 5, as shown in fig. 2.
The outer tube of the invention is made of polytetrafluoroethylene material; the length may be tailored to different preferred lengths depending on the different needs for the breathing, digestive tract, etc. The outer tube functions in cooperation with the flexible head to pass through the body lumen so that other instruments or components can pass smoothly through the desired site. The middle tube is used for pushing out the bracket in the outer tube and delivering the bracket to the lesion part of the natural cavity of the human body. The front handle serves as a hand-held portion for the operator during the insertion of the implant into the body cavity. As shown in fig. 2, the inner tube 1 of the present invention is a multi-lumen tube having a guidewire channel 101 and an infusion channel 102 therein. The rear handle is used for pushing out the acting point of the bracket, and all the cavities in the inner tube are required to be connected with other instruments through the rear handle. The rear handle 9 is connected with a liquid injection joint 10, and the liquid injection joint 10 is communicated with a liquid injection channel 102 of the inner tube 1.
As shown in fig. 2 and 4, the distal end of the inner tube 1 of the present invention is connected with a soft head 4 by penetration. The flexible head 4 is provided with a guide wire hole 401 communicated with the guide wire channel 101, a liquid injection hole 402 communicated with the liquid injection channel 102 and a connecting hole 403 connected with the inner tube 1. The double-stent implantation device of the invention enters the human body cavity and then is delivered to the focus part; the front handle is retracted, and the first bracket between the inner tube and the outer tube is released; pushing the short pushing tube, pushing the second bracket between the middle tube and the inner tube to the original first bracket, repeating the operation of releasing the first bracket, and releasing the second bracket; after reaching the appointed position, the device can be used with other instruments alternately.
Claims (1)
1. A dual stent graft device, characterized in that: the device comprises an inner pipe (1), a middle pipe (2) and an outer pipe (3) which are sequentially arranged from inside to outside, wherein a soft head (4) is connected at the distal end of the inner pipe (1) in a penetrating manner, a first bracket (5) is compressed in a space between the outer pipe (3) and the inner pipe (1), and two ends of the first bracket (5) are respectively abutted against the proximal end of the soft head (4) and the distal end of the middle pipe (2); a short push pipe (6) is sleeved between the middle pipe (2) and the inner pipe (1), a second bracket (7) is compressed in a space between the middle pipe (2) and the inner pipe (1), and two ends of the second bracket (7) are abutted against the distal end of the middle pipe (2) and the distal end of the short push pipe (6); the outer tube (3) can move back and forth relative to the middle tube (2), and the outer tube (3) is retracted or the middle tube (2) and the inner tube (1) move forwards together, so that the first bracket (5) is released from the space between the outer tube (3) and the inner tube (1) and is restored to the original state; after the first bracket (5) is released, the short pushing tube (6) moves forwards, and the second bracket (7) is pushed into the space between the outer tube (3) and the inner tube (1) to replace the first bracket (5); a stop block (201) is arranged on the inner wall of the far end of the middle tube (2), a boosting ring (601) extending out of the outer tube is arranged on the short pushing tube (6), boosting sliding grooves corresponding to the boosting ring (601) are respectively arranged on the middle tube (2) and the outer tube (3), and a boosting steel tube (11) is sleeved between the middle tube (2) and the inner tube (1); the inner tube (1) is a multi-cavity tube, the inside of the inner tube is provided with a guide wire channel (101) and a liquid injection channel (102), and the soft head (4) is provided with a guide wire hole (401) communicated with the guide wire channel (101), a liquid injection hole (402) communicated with the liquid injection channel (102) and a connecting hole (403) connected with the inner tube (1); the proximal end of the outer tube (3) is connected with a front handle (8), and the front handle (8) can move back and forth along the outer wall of the middle tube (2); the proximal ends of the middle tube (2) and the inner tube (1) are connected with a rear handle (9), and the middle tube and the inner tube can move back and forth along the inner wall of the outer tube (3) together under the drive of the rear handle (9); the outer tube (3) is retracted or the middle tube (2) and the inner tube (1) are moved forwards together, so that the first bracket (5) is released from the space between the outer tube (3) and the inner tube (1) and is restored to the original state; the rear handle (9) is connected with a liquid injection joint (10), and the liquid injection joint (10) is communicated with the inner tube (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811489232.2A CN109350322B (en) | 2018-12-06 | 2018-12-06 | Double-bracket implantation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811489232.2A CN109350322B (en) | 2018-12-06 | 2018-12-06 | Double-bracket implantation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109350322A CN109350322A (en) | 2019-02-19 |
| CN109350322B true CN109350322B (en) | 2024-03-22 |
Family
ID=65331424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811489232.2A Active CN109350322B (en) | 2018-12-06 | 2018-12-06 | Double-bracket implantation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109350322B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110507457B (en) * | 2019-08-30 | 2022-04-22 | 湖南瑞康通科技发展有限公司 | Support, conveying system thereof and medical instrument |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5833694A (en) * | 1995-05-25 | 1998-11-10 | Medtronic, Inc. | Stent assembly and method of use |
| KR20030044486A (en) * | 2001-11-30 | 2003-06-09 | 주식회사 에스앤지바이오텍 | Stent introducer |
| CN103479453A (en) * | 2013-10-14 | 2014-01-01 | 黄景陶 | Implantation device for precisely locating human body endoluminal stent |
| CN203677329U (en) * | 2013-10-25 | 2014-07-02 | 常州乐奥医疗科技有限公司 | Novel bracket releasing device |
| CN104434354A (en) * | 2015-01-08 | 2015-03-25 | 蒋军红 | Stent placement device |
| CN107374792A (en) * | 2017-07-21 | 2017-11-24 | 李麟荪 | A kind of integral type layered-scaffold implanting device |
| CN209713276U (en) * | 2018-12-06 | 2019-12-03 | 南京法迈特科技发展有限公司 | Double bracket implanted device |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003101346A1 (en) * | 2002-05-29 | 2003-12-11 | William A. Cook Australia Pty. Ltd. | Multi-piece prosthesis deployment apparatus |
| US7241308B2 (en) * | 2003-06-09 | 2007-07-10 | Xtent, Inc. | Stent deployment systems and methods |
| CA2578259A1 (en) * | 2004-08-27 | 2006-03-09 | Cook Incorporated | Placement of multiple intraluminal medical devices within a body vessel |
| US8486132B2 (en) * | 2007-03-22 | 2013-07-16 | J.W. Medical Systems Ltd. | Devices and methods for controlling expandable prostheses during deployment |
| US20080255653A1 (en) * | 2007-04-13 | 2008-10-16 | Medtronic Vascular, Inc. | Multiple Stent Delivery System and Method |
| US7963987B2 (en) * | 2007-12-28 | 2011-06-21 | Cook Medical Technologies Llc | Sequential implant delivery system |
| US20110077731A1 (en) * | 2009-09-25 | 2011-03-31 | Abbott Cardiovascular Systems Inc. | Multiple stent delivery system |
| US8864811B2 (en) * | 2010-06-08 | 2014-10-21 | Veniti, Inc. | Bi-directional stent delivery system |
| US20160242943A1 (en) * | 2015-02-20 | 2016-08-25 | Cook Medical Technologies Llc | Duet stent deployment system and method of performing a transjugular intrahepatic portosystemic shunting procedure using same |
| WO2017049314A1 (en) * | 2015-09-18 | 2017-03-23 | Microvention, Inc. | Pushable implant delivery system |
-
2018
- 2018-12-06 CN CN201811489232.2A patent/CN109350322B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5833694A (en) * | 1995-05-25 | 1998-11-10 | Medtronic, Inc. | Stent assembly and method of use |
| KR20030044486A (en) * | 2001-11-30 | 2003-06-09 | 주식회사 에스앤지바이오텍 | Stent introducer |
| CN103479453A (en) * | 2013-10-14 | 2014-01-01 | 黄景陶 | Implantation device for precisely locating human body endoluminal stent |
| CN203677329U (en) * | 2013-10-25 | 2014-07-02 | 常州乐奥医疗科技有限公司 | Novel bracket releasing device |
| CN104434354A (en) * | 2015-01-08 | 2015-03-25 | 蒋军红 | Stent placement device |
| CN107374792A (en) * | 2017-07-21 | 2017-11-24 | 李麟荪 | A kind of integral type layered-scaffold implanting device |
| CN209713276U (en) * | 2018-12-06 | 2019-12-03 | 南京法迈特科技发展有限公司 | Double bracket implanted device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109350322A (en) | 2019-02-19 |
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| CB02 | Change of applicant information |
Address after: No.57 Huayuan Avenue, economic development zone, Gaochun District, Nanjing City, Jiangsu Province Applicant after: NANJING FMT MEDICAL Co.,Ltd. Address before: 210032 the four layer of B block, Ding Ye Bai Tai biological building, No. 10, Spark Road, Nanjing high tech Industrial Development Zone, Jiangsu, China. Applicant before: NANJING FMT MEDICAL Co.,Ltd. |
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