CN112006743B - Spring ring pushing locking device - Google Patents
Spring ring pushing locking device Download PDFInfo
- Publication number
- CN112006743B CN112006743B CN202011015393.5A CN202011015393A CN112006743B CN 112006743 B CN112006743 B CN 112006743B CN 202011015393 A CN202011015393 A CN 202011015393A CN 112006743 B CN112006743 B CN 112006743B
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- Prior art keywords
- locking block
- locking
- inclined plane
- attaching inclined
- attaching
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- 230000008878 coupling Effects 0.000 claims abstract description 10
- 238000010168 coupling process Methods 0.000 claims abstract description 10
- 238000005859 coupling reaction Methods 0.000 claims abstract description 10
- 238000005452 bending Methods 0.000 claims abstract description 8
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 12
- 210000004204 blood vessel Anatomy 0.000 claims description 10
- 229910052697 platinum Inorganic materials 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 238000003475 lamination Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/12—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
- A61B17/1214—Coils or wires
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/12—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/12—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B2017/1205—Introduction devices
- A61B2017/12054—Details concerning the detachment of the occluding device from the introduction device
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Reproductive Health (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The application discloses a spring ring pushing locking device which comprises a first locking block and a second locking block, wherein the first locking block and the second locking block are matched together in a mode of matching a protrusion and a groove; when the first locking block pushes the second locking block to move, the first attaching inclined surface and the second attaching inclined surface are mutually attached together, and the first locking block and the second locking block have a sliding closing trend. The application has the following beneficial effects: the first locking block and the second locking block form a coupling force through inclined surface lamination, so that the matching strength between the first locking block and the second locking block is firmer, the first locking block and the second locking block are not easy to separate from each other, and the bending capacity is good.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a spring ring pushing locking device.
Background
Patent US9907555B2 provides a spring coil pushing device, the structure of the spring coil pushing device can be referred to as fig. 1, fig. 2A and fig. 2B of the patent, two mutually clamped and matched occluding arms in the spring coil pushing device can push a spring coil, but when the spring coil receives a large pushing force, two occluding arms are contacted through right-angle surfaces and cannot move, so that the spring coil pushing device pushes a blood vessel at a certain tortuosity angle, the occluding arms cannot move along with the tortuosity blood vessel when being subjected to bending angle, the length of a rigid section is increased, the resistance of the tortuosity blood vessel is large, even the bending angle of the tortuosity blood vessel cannot be changed according to the original physiological bending structure of the blood vessel, so that the conveying conduit and the blood vessel bear a large pushing force, the conveying conduit is damaged or the blood vessel is broken, when the spring coil receives a large pushing force, a certain angle exists between the two occluding arms, the larger pushing force is also large, the elastic force is generated, the matched occluding arms between the two occluding arms can loose, and the sliding-off occurs when the spring coil is received by the spring coil.
Disclosure of Invention
The invention provides a spring ring pushing locking device aiming at the problems.
The technical scheme adopted by the invention is as follows:
The spring ring pushing locking device comprises a first locking block and a second locking block, wherein the first locking block and the second locking block are matched together in a mode of matching a protrusion and a groove, a first attaching inclined plane is arranged on the first locking block, a second attaching inclined plane is arranged on the second locking block, and the first attaching inclined plane is used for being in close fit with the second attaching inclined plane; when the first locking block pushes the second locking block to move, the first attaching inclined surface and the second attaching inclined surface are mutually attached together, and the first locking block and the second locking block have a sliding closing trend.
The first locking block and the second locking block are clamped and matched together in a way of protruding and recessed, a first jointing inclined plane is arranged on the first locking block, a second jointing inclined plane is arranged on the second locking block, and the second jointing inclined plane and the first jointing inclined plane are mutually jointed together, so that when the first locking block pushes the second locking block to move, thrust is transmitted between the first locking block and the second locking block through the action of the first jointing inclined plane and the second jointing inclined plane, at the moment, the first locking block not only gives forward thrust to the second locking block, but also has a trend of approaching the second locking block, a coupling force is generated between the first locking block and the second locking block, and the coupling force between the first locking block and the second locking block is larger, so that when the first locking block and the second locking block move in a straight blood vessel, no matter the first locking block gives the second locking block a plurality of large thrust forces, the first locking block and the second locking block are not easily separated from the second locking block, and are easily separated from the second locking block, or the first locking block and the second locking block is easily separated from the second locking block, and the first locking block is easily separated from the second locking block, and the second locking block is easily separated from the second locking block, and the first locking block is easily separated from the second locking block, and is easily separated from the second locking block.
In summary, a coupling force is formed between the first locking block and the second locking block by adopting inclined surface lamination, so that the matching strength between the first locking block and the second locking block is firmer, the first locking block and the second locking block are not easy to separate from each other, and the bending capacity is good.
Optionally, the first locking block is provided with a first groove and a first protrusion, the second locking block is provided with a second groove and a second protrusion, the first groove and the second protrusion are matched together, the first protrusion and the second groove are matched together, the first attaching inclined plane is arranged on the first protrusion, and the second inclined plane is arranged on the second groove.
The first locking block is provided with the first groove and the first bulge, and the second locking block is provided with the second groove and the second bulge, so that the first locking block and the second locking block can be locked together through the jogging effect of the bulge and the groove, and the disassembly and the assembly are convenient.
Optionally, the device further comprises a pushing rod, a spring ring and a catheter, wherein the pushing rod is fixed on the second locking block, the spring ring is fixed on the first locking block, and the first locking block and the second locking block are both sleeved in the catheter in a sliding manner.
Optionally, the catheter is a flexible catheter.
Optionally, the inclination angle value of the first attaching inclined plane is 10-30 degrees, and the inclination angle value of the second attaching inclined plane is equal to the inclination angle value of the first attaching inclined plane.
The first attaching inclined plane and the second attaching inclined plane with the inclination angle value of 10-30 degrees are adopted for attaching, so that a large locking force can be ensured between the first locking block and the second locking block, and in addition, quick assembly and disassembly can be ensured between the first locking block and the second locking block.
Optionally, the inclination angle value of the first attaching inclined plane is 15 degrees, and the inclination angle value of the second attaching inclined plane is 15 degrees.
Optionally, the first locking block is a cylindrical first locking block, and the second locking block is a cylindrical second locking block.
Because the catheter is round, the first locking block and the second locking block are cylindrical, so that the catheter can move smoothly.
Optionally, the first locking block is a first locking block made of stainless steel or platinum, and the second locking block is a second locking block made of stainless steel or platinum.
The beneficial effects of the invention are as follows: the first locking block and the second locking block form a coupling force through inclined surface lamination, so that the matching strength between the first locking block and the second locking block is firmer, the first locking block and the second locking block are not easy to separate from each other, and the bending capacity is good.
Drawings
FIG. 1 is a schematic view of the coil push locker moving in a straight vessel;
fig. 2 is a schematic view of the structure of the coil pushing locker moving in a tortuous vessel.
The reference numerals in the drawings are as follows: 1. the catheter, 2, push rod, 3, first locking piece, 301, first recess, 302, first boss, 303, first laminating inclined plane, 4, second locking piece, 401, second recess, 402, second boss, 403, second laminating inclined plane, 5, spring coil.
Detailed Description
The present invention will be described in detail below.
It should be noted that the directions indicated by the arrows in fig. 1 and fig. 2 are the moving directions of the first locking block and the second locking block.
As shown in fig. 1 and fig. 2, a spring coil pushing locking device comprises a first locking block 3 and a second locking block 4, wherein the first locking block 3 and the second locking block 4 are matched together in a convex and concave matching mode, a first attaching inclined surface 303 is arranged on the first locking block 3, a second attaching inclined surface 403 is arranged on the second locking block 4, and the first attaching inclined surface 303 is used for being in close fit with the second attaching inclined surface 403; when the first locking block 3 pushes the second locking block 4 to move, the first fitting inclined surface 303 and the second fitting inclined surface 403 are mutually abutted together, and the first locking block 3 and the second locking block 4 have a sliding close trend.
In the device, the first locking block 3 and the second locking block 4 are clamped and matched together in a way of protruding and recessed, the first joint inclined plane 303 is arranged on the first locking block 3, the second joint inclined plane 403 is arranged on the second locking block 4, the second joint inclined plane 403 and the first joint inclined plane 303 are mutually jointed together, at the moment, when the first locking block 3 pushes the second locking block 4 to move, the thrust force is transmitted between the first locking block 3 and the second locking block 4 through the action of the first joint inclined plane 303 and the second joint inclined plane 403, at the moment, the first locking block 3 not only gives the second locking block 4a forward moving thrust force, but also has a tendency to approach the second locking block 4, a coupling force is generated between the first locking block 3 and the second locking block 4, and the force between the first locking block 3 and the second locking block 4 is larger, when the first locking block 3 and the second locking block 4 are in motion, the first locking block 3 and the second locking block 4 are out of contact with each other, and the first locking block 4 cannot be separated from the second locking block 4 due to the fact that the first locking block 3 and the second locking block 4 are not in motion, and the second locking block is not in motion, and the first locking block is not separated from the second locking block 4, and the first locking block is not in motion, and the second locking block is not separated from the second locking block 4, and the second locking block is not in motion, and the motion.
In a word, a coupling force is formed between the first locking block 3 and the second locking block 4 by adopting inclined surface lamination, so that the matching strength between the first locking block 3 and the second locking block 4 is firmer, and the first locking block 3 and the second locking block 4 are not easy to separate from each other.
As shown in fig. 1 and fig. 2, the first locking block 3 is provided with a first groove 301 and a first protrusion 302, the second locking block 4 is provided with a second groove 401 and a second protrusion 402, the first groove 301 and the second protrusion 402 are matched together, the first protrusion 302 and the second groove 401 are matched together, the first fitting inclined surface 303 is arranged on the first protrusion 302, and the second inclined surface is arranged on the second groove 401.
The first locking block 3 is provided with the first groove 301 and the first protrusion 302, and the second locking block 4 is provided with the second groove 401 and the second protrusion 402, so that the first locking block 3 and the second locking block 4 can be locked together through the embedding effect of the protrusions and the grooves, and the disassembly and the assembly are convenient.
As shown in fig. 1 and 2, the catheter further comprises a pushing rod 2, a spring ring 5 and a catheter 1, wherein the pushing rod 2 is fixed on the second locking block 4, the spring ring 5 is fixed on the first locking block 3, and the first locking block 3 and the second locking block 4 are both sleeved in the catheter 1 in a sliding manner.
As shown in fig. 1 and 2, the catheter 1 is a flexible catheter 1.
As shown in fig. 1 and 2, the inclination angle of the first bonding inclined surface 303 is 10 to 30 degrees, and the inclination angle of the second bonding inclined surface 403 is equal to the inclination angle of the first bonding inclined surface.
The first attaching inclined plane 303 and the second attaching inclined plane 403 with the inclination angle value of 10-30 degrees are adopted for attaching, so that a large locking force can be ensured between the first locking block 3 and the second locking block 4, and in addition, quick assembly and disassembly can be ensured between the first locking block 3 and the second locking block 4.
As shown in fig. 1 and 2, the first bonding inclined surface 303 has an inclination angle of 15 degrees, and the second bonding inclined surface 403 has an inclination angle of 15 degrees.
As shown in fig. 1 and 2, the first locking block 3 is a cylindrical first locking block 3, and the second locking block 4 is a cylindrical second locking block 4.
Since the guide tube 1 is round, the cylindrical first locking piece 3 and the second locking piece 4 are adopted, so that the guide tube 1 can move smoothly.
As shown in fig. 1 and 2, the first locking block 3 is a first locking block 3 made of stainless steel or platinum, and the second locking block 4 is a second locking block 4 made of stainless steel or platinum.
According to actual comparison measurement, under the condition that the 90-degree bent angle and the diameter of the catheter are the same and the two groups of locking blocks are equal in mass, the pushing force required by the locking device provided by the embodiment passing through the 90-degree bent angle is 0.7N, and the pushing force required by the pushing device provided by US9907555B2 is 1.25N.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but is intended to cover all equivalent modifications, direct or indirect, as would be included in the scope of the invention.
Claims (5)
1. The spring ring pushing locking device comprises a first locking block and a second locking block, wherein the first locking block and the second locking block are matched together in a mode of matching a protrusion and a groove, the first locking block is provided with a first attaching inclined plane, the second locking block is provided with a second attaching inclined plane, and the first attaching inclined plane is used for being in close fit with the second attaching inclined plane; when the first locking block pushes the second locking block to move, the first attaching inclined surface and the second attaching inclined surface are mutually attached together, and the first locking block and the second locking block have a sliding close trend;
The first locking block is provided with a first groove and a first bulge, the second locking block is provided with a second groove and a second bulge, the first groove is matched with the second bulge, the first bulge is matched with the second groove, the first attaching inclined plane is arranged on the first bulge, and the second attaching inclined plane is arranged on the second groove;
The inclination angle value of the first attaching inclined plane is 15 degrees, and the inclination angle value of the second attaching inclined plane is 15 degrees;
When the first locking block pushes the second locking block to move, pushing force is transmitted between the first locking block and the second locking block through the action of the first attaching inclined surface and the second attaching inclined surface, at the moment, the first locking block not only provides pushing force for the second locking block to move forwards, but also has a trend of approaching to the second locking block, a coupling force is generated between the first locking block and the second locking block, and the larger the force of the first locking block to the second locking block is, the larger the coupling force between the first locking block and the second locking block is; when the first locking block and the second locking block move in the straight blood vessel, no matter how much pushing force is given to the second locking block by the first locking block, the first locking block and the second locking block cannot be separated, and when the first locking block and the second locking block move into the tortuous blood vessel, certain bending can occur between the first locking block and the second locking block, and the first locking block and the second locking block cannot be separated from each other after bending due to a coupling force between the first locking block and the second locking block.
2. The spring coil push locker of claim 1 further comprising a push rod, a spring coil and a conduit, wherein the push rod is secured to the second locking block, the spring coil is secured to the first locking block, and both the first locking block and the second locking block are slidably disposed within the conduit.
3. The coil push latch of claim 2 wherein said catheter is a flexible catheter.
4. The coil push latch of claim 1 wherein said first locking block is a cylindrical first locking block and said second locking block is a cylindrical second locking block.
5. The spring coil push latch of claim 1 wherein said first locking block is a first locking block of stainless steel or platinum and said second locking block is a second locking block of stainless steel or platinum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011015393.5A CN112006743B (en) | 2020-09-24 | 2020-09-24 | Spring ring pushing locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011015393.5A CN112006743B (en) | 2020-09-24 | 2020-09-24 | Spring ring pushing locking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112006743A CN112006743A (en) | 2020-12-01 |
| CN112006743B true CN112006743B (en) | 2024-08-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011015393.5A Active CN112006743B (en) | 2020-09-24 | 2020-09-24 | Spring ring pushing locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112006743B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106377292A (en) * | 2016-11-10 | 2017-02-08 | 珠海通桥医疗科技有限公司 | Embolic coil detaching device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012523943A (en) * | 2009-04-20 | 2012-10-11 | アチーバ メディカル リミテッド | Occlusion device delivery assembly using a mechanically interlocking coupling mechanism |
| CN201524723U (en) * | 2009-10-19 | 2010-07-14 | 浙江精功科技股份有限公司 | Locking device of a circular downcast pipe |
| US8940005B2 (en) * | 2011-08-08 | 2015-01-27 | Gyrus Ent L.L.C. | Locking flexible surgical instruments |
| US9089395B2 (en) * | 2011-11-16 | 2015-07-28 | Appolo Endosurgery, Inc. | Pre-loaded septum for use with an access port |
| CN211409212U (en) * | 2019-07-11 | 2020-09-04 | 上海小鱼医疗科技有限公司 | Interlocking type embolism intervention instrument |
| CN211534559U (en) * | 2019-07-12 | 2020-09-22 | 上海恩盛医疗科技有限公司 | Medical device for treating aneurysm |
| CN211486137U (en) * | 2019-11-22 | 2020-09-15 | 茵络(无锡)医疗器械有限公司 | Bending adjusting catheter and bending adjusting device for interventional therapy |
-
2020
- 2020-09-24 CN CN202011015393.5A patent/CN112006743B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106377292A (en) * | 2016-11-10 | 2017-02-08 | 珠海通桥医疗科技有限公司 | Embolic coil detaching device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112006743A (en) | 2020-12-01 |
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| CB02 | Change of applicant information |
Country or region after: China Address after: 310000 floor 1 and 2, building 1, No. 18, Keji Avenue, Yuhang street, Yuhang District, Hangzhou City, Zhejiang Province Applicant after: Guichuang Tongqiao Medical Technology Co.,Ltd. Address before: 311100 floor 1 and 2, building 1, No. 18, Keji Avenue, Yuhang street, Yuhang District, Hangzhou City, Zhejiang Province Applicant before: ZHEJIANG BELONGS TO A MEDICAL INSTRUMENT Co.,Ltd. Country or region before: China |
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