CN112006743A - Spring ring pushing and locking device - Google Patents
Spring ring pushing and locking device Download PDFInfo
- Publication number
- CN112006743A CN112006743A CN202011015393.5A CN202011015393A CN112006743A CN 112006743 A CN112006743 A CN 112006743A CN 202011015393 A CN202011015393 A CN 202011015393A CN 112006743 A CN112006743 A CN 112006743A
- Authority
- CN
- China
- Prior art keywords
- locking block
- locking
- inclined plane
- block
- protrusion
- 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.)
- Pending
Links
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 12
- 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
- 230000008878 coupling Effects 0.000 abstract description 10
- 238000010168 coupling process Methods 0.000 abstract description 10
- 238000005859 coupling reaction Methods 0.000 abstract description 10
- 238000010030 laminating Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 210000004204 blood vessel Anatomy 0.000 description 18
- 238000005452 bending Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, 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, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, 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, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, 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
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 that a protrusion is matched with 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 attached and matched with the second attaching inclined plane; when the first locking block pushes the second locking block to move, the first attaching inclined plane and the second attaching inclined plane are attached together, and the first locking block and the second locking block have the tendency of sliding close. The invention has the following beneficial effects: form a coupling force through adopting the inclined plane laminating between first locking piece and the second locking piece for cooperation intensity between first locking piece and the second locking piece is more firm, and the two is difficult for breaking away from the cooperation, and it is good to cross curved ability.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a spring ring pushing and locking device.
Background
The patent US9907555B2 provides a coil pushing device, the structure of which can refer to fig. 1, fig. 2A and fig. 2B of the patent, the coil pushing device has two occlusion arms that are mutually engaged together to push the coil, but the two occlusion arms that are engaged together are contacted through a right angle surface and cannot move between the two occlusion arms, so the coil pushing device pushes the blood vessel with a certain tortuosity angle, because the occlusion arms cannot move along with the tortuosity blood vessel when receiving a bending angle, the length of the rigid segment is increased, the resistance through the tortuosity blood vessel is larger, even the delivery catheter and the blood vessel can be damaged or the blood vessel is ruptured because the tortuosity blood vessel bending angle can not be changed to make the delivery catheter and the blood vessel receive larger pushing force due to being unable to conform to the original physiological bending structure of the blood vessel, further, when the spring ring applies a large pushing force after receiving a large resistance, a certain angle exists between the two engagement arms, the larger the pushing force is, the larger the outward decomposition force is, so that the fit between the two engagement arms becomes loose, the two engagement arms slip, and the process of slipping can be seen in fig. 3B of the patent document.
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:
a 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 that a protrusion is matched with 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 closely matched with the second attaching inclined plane; when the first locking block pushes the second locking block to move, the first attaching inclined plane and the second attaching inclined plane are attached together, and the first locking block and the second locking block have the tendency of sliding close.
In the device, a first locking block and a second locking block are in clamping fit together in a mode of 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 second attaching inclined plane and the first attaching inclined plane are attached to each other, at the moment, when the first locking block pushes the second locking block to move, as the pushing force is transmitted between the first locking block and the second locking block through the action of the first attaching inclined plane and the second attaching inclined plane, the first locking block not only provides the pushing force for the forward movement of the second locking block, the first locking block has a tendency of closing 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, therefore, when the first locking block and the second locking block move in a straight blood vessel, no matter how much thrust is given to the second locking block by the first locking block, the first locking block and the second locking block cannot be separated, when the first locking block and the second locking block move into a tortuous blood vessel, certain bending can be generated 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 being bent due to the coupling force, so that the resistance when the first locking block and the second locking block pass through the tortuous blood vessel is reduced, the catheter or the blood vessel cannot be broken, the first locking block and the second locking block cannot be separated easily, and the over-bending capability is good.
In conclusion, a coupling force is formed between the first locking block and the second locking block by adopting the inclined plane for 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 be separated from each other, and the bending capability is good.
Optionally, a first groove and a first protrusion are arranged on the first locking block, a second groove and a second protrusion are arranged on the second locking block, 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.
Set up first recess and first arch on first locking piece, set up second recess and second arch on second locking piece, can be in the same place first locking piece and second locking piece lock through the gomphosis effect of arch and recess like this, easy dismounting.
Optionally, the device further comprises a pushing rod, a spring ring and a conduit, 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 sleeved in the conduit in a sliding manner.
Optionally, the conduit is a flexible conduit.
Optionally, the inclination angle value of the first attaching inclined plane is 10 to 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 attached to ensure that a larger locking force can be generated between the first locking block and the second locking block, and in addition, the first locking block and the second locking block can be quickly disassembled and assembled.
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 conduit is round, the first locking block and the second locking block which are cylindrical are adopted, so that the conduit can move smoothly in the conduit.
Optionally, the first locking block is made of stainless steel or platinum, and the second locking block is made of stainless steel or platinum.
The invention has the beneficial effects that: form a coupling force through adopting the inclined plane laminating between first locking piece and the second locking piece for cooperation intensity between first locking piece and the second locking piece is more firm, and the two is difficult for breaking away from the cooperation, and it is good to cross curved ability.
Description of the drawings:
FIG. 1 is a schematic structural view of a coil push locking device moving in a straight blood vessel;
fig. 2 is a schematic structural view of the coil pushing locking device moving in a tortuous blood vessel.
The figures are numbered: 1. the pipe, 2, push rod, 3, first locking piece, 301, first recess, 302, first arch, 303, first laminating inclined plane, 4, second locking piece, 401, second recess, 402, second arch, 403, second laminating inclined plane, 5, spring coil.
The specific implementation mode is as follows:
the present invention is described in detail below.
It should be noted that the direction indicated by the arrow in fig. 1 and 2 is the moving direction of the first locking block and the second locking block.
As shown in fig. 1 and fig. 2, a spring ring pushing locking device includes a first locking block 3 and a second locking block 4, the first locking block 3 and the second locking block 4 are matched together in a way of matching a protrusion and a groove, the first locking block 3 is provided with a first attaching inclined surface 303, the second locking block 4 is provided with a second attaching inclined surface 403, and the first attaching inclined surface 303 is used for being attached and matched with the second attaching inclined surface 403; when the first locking block 3 pushes the second locking block 4 to move, the first attaching inclined surface 303 and the second attaching inclined surface 403 are attached together, and the first locking block 3 and the second locking block 4 have a tendency of sliding together.
In the device, a first locking block 3 and a second locking block 4 are in clamping fit together in a protrusion and groove mode, a first attaching inclined plane 303 is arranged on the first locking block 3, a second attaching inclined plane 403 is arranged on the second locking block 4, the second attaching inclined plane 403 and the first attaching inclined plane 303 are attached together, when the first locking block 3 pushes the second locking block 4 to move, as the pushing force is transmitted between the first locking block 3 and the second locking block 4 under the action of the first attaching inclined plane 303 and the second attaching inclined plane 403, the first locking block 3 not only provides the pushing force for the second locking block 4 to move forwards, but also the first locking block 3 has a tendency to approach to 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 of the first locking block 3 to the second locking block 4 is larger, the coupling force between the first locking block 3 and the second locking block 4 is larger, so when the first locking block 3 and the second locking block 4 move in a straight blood vessel, no matter how large the pushing force of the first locking block 3 for the second locking block 4 is, the first locking block 3 and the second locking block 4 cannot be separated, and when the first locking block 3 and the second locking block 4 move to a tortuous blood vessel, certain bending can be generated 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 being bent due to the coupling force between the first locking block and the second locking block, so that the resistance when the first locking block and the second locking block pass through the tortuous blood vessel is reduced, the catheter or the blood vessel cannot be ruptured, and the first locking block and the second locking block cannot be separated from each other easily.
To sum up, form a coupling force through adopting the inclined plane laminating between first locking piece 3 and the second locking piece 4 for the cooperation intensity between first locking piece 3 and the second locking piece 4 is more firm, and the two is difficult for breaking away from the cooperation.
As shown in fig. 1 and fig. 2, a first groove 301 and a first protrusion 302 are disposed on the first locking block 3, a second groove 401 and a second protrusion 402 are disposed on the second locking block 4, 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 attaching inclined plane 303 is disposed on the first protrusion 302, and the second inclined plane is disposed on the second groove 401.
Set up first recess 301 and first arch 302 on first locking piece 3, set up second recess 401 and second arch 402 on second locking piece 4, can be in the same place first locking piece 3 with the lock of second locking piece 4 through the gomphosis effect of arch with the recess like this, easy dismounting.
As shown in fig. 1 and fig. 2, the device further comprises a pushing rod 2, a spring ring 5 and a conduit 1, wherein the pushing rod 2 is fixed on a second locking block 4, the spring ring 5 is fixed on a first locking block 3, and the first locking block 3 and the second locking block 4 are both slidably sleeved in the conduit 1.
As shown in fig. 1 and 2, the catheter 1 is a flexible catheter 1.
As shown in fig. 1 and 2, the first attaching inclined plane 303 has an inclination angle of 10 to 30 degrees, and the second attaching inclined plane 403 has an inclination angle equal to that of the first attaching inclined plane.
The first attaching inclined plane 303 and the second attaching inclined plane 403 with the inclination angle value of 10-30 degrees are attached to ensure that a larger locking force can be generated between the first locking block 3 and the second locking block 4, and in addition, the first locking block 3 and the second locking block 4 can be quickly disassembled and assembled.
As shown in fig. 1 and 2, the first attaching inclined surface 303 has an inclination angle of 15 degrees, and the second attaching 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 catheter 1 is round, the first and second locking pieces 3 and 4 having a cylindrical shape are used, so that they can smoothly move in the catheter 1.
As shown in fig. 1 and fig. 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.
Actual comparison and measurement show that under the condition that the 90-degree bend angle and the diameter of the catheter are the same, and the mass of the two locking blocks is equal, the pushing force required by the locking device provided by the embodiment to pass through the 90-degree bend angle is 0.7N, while the pushing force required by the pushing device provided by US9907555B2 is 1.25N.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, which is defined by the claims and their equivalents, and can be directly or indirectly applied to other related fields of technology.
Claims (8)
1. A 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 that a protrusion is matched with a groove; when the first locking block pushes the second locking block to move, the first attaching inclined plane and the second attaching inclined plane are attached together, and the first locking block and the second locking block have the tendency of sliding close.
2. A spring coil push latch as in claim 1, wherein the first latch piece has a first groove and a first protrusion, the second latch piece has a second groove and a second protrusion, the first groove and the second protrusion are engaged together, the first protrusion and the second groove are engaged together, the first engaging ramp is disposed on the first protrusion, and the second ramp is disposed on the second groove.
3. The spring coil push locking device as claimed in claim 1, further comprising a push rod, a spring coil and a guide tube, wherein the push rod is fixed on the second locking block, the spring coil is fixed on the first locking block, and the first locking block and the second locking block are slidably sleeved in the guide tube.
4. A spring coil push buckle device as in claim 3, wherein the conduit is a flexible conduit.
5. A spring coil push latch as in claim 1, wherein the first abutment ramp has an angle of inclination ranging from 10 degrees to 30 degrees, and the second abutment ramp has an angle of inclination equal to the angle of inclination of the first abutment ramp.
6. A spring coil push latch as in claim 5 wherein the first abutment ramp has an angle of inclination of 15 degrees and the second abutment ramp has an angle of inclination of 15 degrees.
7. A spring coil push latch as in claim 1, wherein said first lock block is a cylindrical first lock block and said second lock block is a cylindrical second lock block.
8. A spring coil push latch as in claim 1, wherein the first lock block is a stainless steel or platinum first lock block and the second lock block is a stainless steel or platinum second lock block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011015393.5A CN112006743A (en) | 2020-09-24 | 2020-09-24 | Spring ring pushing and locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011015393.5A CN112006743A (en) | 2020-09-24 | 2020-09-24 | Spring ring pushing and locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112006743A true CN112006743A (en) | 2020-12-01 |
Family
ID=73527187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011015393.5A Pending CN112006743A (en) | 2020-09-24 | 2020-09-24 | Spring ring pushing and locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112006743A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102438533A (en) * | 2009-04-20 | 2012-05-02 | 加奇生物有限公司 | Delivery assembly for occlusion device using mechanical interlocking coupling mechanism |
| CN103702626A (en) * | 2011-08-08 | 2014-04-02 | 吉鲁斯恩特公司 | Locking flexible surgical instruments |
| CN104039277A (en) * | 2011-11-16 | 2014-09-10 | 阿波罗内窥镜外科手术有限责任公司 | Pre-loaded septum for use with an access port |
| CN106377292A (en) * | 2016-11-10 | 2017-02-08 | 珠海通桥医疗科技有限公司 | Embolic coil detaching device |
| 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 |
| 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 |
| 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 |
-
2020
- 2020-09-24 CN CN202011015393.5A patent/CN112006743A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102438533A (en) * | 2009-04-20 | 2012-05-02 | 加奇生物有限公司 | Delivery assembly for occlusion device using mechanical 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 |
| CN103702626A (en) * | 2011-08-08 | 2014-04-02 | 吉鲁斯恩特公司 | Locking flexible surgical instruments |
| CN104039277A (en) * | 2011-11-16 | 2014-09-10 | 阿波罗内窥镜外科手术有限责任公司 | Pre-loaded septum for use with an access port |
| CN106377292A (en) * | 2016-11-10 | 2017-02-08 | 珠海通桥医疗科技有限公司 | Embolic coil detaching device |
| 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 |
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