CN106491181A - A kind of thrombosis with many helical structures take pin device - Google Patents
A kind of thrombosis with many helical structures take pin device Download PDFInfo
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- CN106491181A CN106491181A CN201710028973.XA CN201710028973A CN106491181A CN 106491181 A CN106491181 A CN 106491181A CN 201710028973 A CN201710028973 A CN 201710028973A CN 106491181 A CN106491181 A CN 106491181A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/22031—Gripping instruments, e.g. forceps, for removing or smashing calculi
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Abstract
The present invention relates to a kind of thrombosis with many helical structures take pin device, including：First actuator, the second actuator, inner ring conduit, outer ring conduit, proximal marker ring, distal marker ring, guide pin bushing, coiled wire；The similar self-expandable stent of spring support thereon, during release, adherence quality is more preferable relative to the adherent performance of existing self-expandable stent.Spring support is mellow and full smooth coiled wire in release in the structure of contact blood vessel, and it is less to compare more existing self-expandable stent to the damage of blood vessel on the way, can mitigate patient suffering to the full extent.Spring support can be discharged in intravascular completely, and when reclaiming, spring support can thoroughly take bolt, and when reclaiming spring support coiled wire can screw-pinch close up, prevent speckle from departing to the full extent.Spring support can launch rapidly to fill blood vessel after discharging from guide pin bushing naturally, equivalent to implementing a stent-assisted angioplasty, being capable of instant recovery blood flow, it is ensured that not arterial intima.
Description
Technical field
The present invention relates to technical field of medical instruments, and in particular to a kind of thrombosis with many helical structures take pin device.
Background technology
Thrombosiss are present due to some inducements, and in blood, some compositions occur abnormal formation blood clot in the circulating cycle,
Or hypostasis thing is formed on wall of the heart or blood vessel wall, cause Blood occlusion.Thrombosiss spread all over body tissue's organ, no
Myocardial infarction be only confined to, and dvt is formed or the pathological changes such as cerebrovascular thrombosiss, and thrombosis can occur any in vivo
The Ink vessel transfusing at position.Phlebothrombosises incidence rate is higher than arterial thrombus, and up to 4: 1, phlebothrombosises account for thrombosis mechanism to both ratios
40%～60%, blocking property coronary artery thrombosis incidence rate is 15%～95%, and 90% thrombosis are with Atherosclerosis
Dissipating rashes block.Thrombosiss cause vascular occlusion, blood flow be obstructed cause the blood vessel domination tissue ischemia of correlation, anoxia even necrosis and
Produce respective organization, the symptom of organ dysfunction.How early stage is treated using anticoagulant, but therapeutic effect is not obvious,
Recanalization rate is low, it is long to lead to the time again, and some patients are not suitable for thromboembolism treatment.Machinery takes bolt and provides for thrombosis patients
A kind of new, efficient revascularization Therapeutic Method, machinery takes that bolt operating time is short, related complication is few, is current thrombosis
The study hotspot of therapy field.Multiplex in the market take bolt support and carry out machinery take bolt, take bolt support and mostly be single layer structure, lean on
Near or abut in and take bolt, for the crystallized ability of internal thrombosis weaker.
Content of the invention
For overcoming drawbacks described above, the purpose of the present invention be to provide a kind of safer, quickly can effectively remove removing thrombus
The thrombosis with many helical structures take pin device.
The purpose of the present invention is achieved through the following technical solutions：
A kind of thrombosis with many helical structures of the present invention take pin device, including：First actuator, the second actuator, inner ring
Conduit, outer ring conduit, proximal marker ring, distal marker ring, guide pin bushing, coiled wire；First actuator is driven with outer ring conduit and is connected
The dynamic outer ring conduit rotation of tape splicing；Inner ring conduit is arranged in the conduit of outer ring and stretches out two ends, and the second actuator is stretched with inner ring conduit
One end drive connection for going out drives the rotation of inner ring conduit, the other end that inner ring conduit stretches out to be connected with distal marker ring；Near-end mark
Note ring is axially slidably set on the conduit of outer ring, and the end of proximal marker ring is extended with multiple coiled wires, multiple spirals
The end of seal wire is connected with distal marker ring；The multiple spiral riflings matched with multiple coiled wires are provided with guide pin bushing inwall
Striped, multiple coiled wires are arranged on when being compressed in multiple spiral rifling stripeds, and multiple coiled wires are stretched out when being uncompressed
Arrange to form spring support in uniform spiral outside guide pin bushing.
Further, thrombosis take pin device also includes the 3rd actuator, center seal wire；Center seal wire is arranged in inner ring conduit
And stretch out, one end drive connection that the 3rd actuator and center seal wire stretch out drives the vibration of center seal wire, center seal wire another
End is connected with distal marker ring.
Further, thrombosis take pin device also includes eccentric pendulum, the other end of center seal wire stretch out distal marker ring with
Eccentric pendulum connection.
Further, the multiple barbs for pointing to inner ring conduit are provided with multiple coiled wires.
Further, it is provided with multiple coiled wires for recognizing the labelling of spring support rotation direction.
Further, multiple springs are set on distal marker ring and reclaim silk, multiple springs reclaim silk and multiple coiled wires
End connects one to one.
Further, multiple coiled wires are Nitinol memory guide wire.
Further, the first actuator and the second actuator include worm gear, worm screw, motor；Worm gear is set in inner ring conduit
Or on the conduit of outer ring, motor is coaxially connected with worm screw, worm and wheel engagement is connected.
Further, the quantity of multiple coiled wires is four, and be evenly distributed setting.
Further, the 3rd actuator is vibrating motor.
A kind of thrombosis with many helical structures that the present invention is provided take pin device and have the following technical effect that：
1st, the similar self-expandable stent of the spring support in this device, but because its spinning behaviour, during release adherence quality relative to
The adherent performance of existing self-expandable stent is more preferable.
2nd, the spring support in this device is mellow and full smooth spiral in release in the structure of contact blood vessel and leads
Silk, it is less to compare more existing self-expandable stent to the damage of blood vessel on the way, can mitigate patient suffering to the full extent.
3rd, the spring support in this device can be discharged in intravascular completely, and when reclaiming, spring support thoroughly can take bolt,
And reclaim when spring support coiled wire can screw-pinch close up, prevent to the full extent speckle depart from.
4th, can launch naturally rapidly to fill blood vessel after the spring support of this device is discharged from guide pin bushing, equivalent to reality
Applied a stent-assisted angioplasty, can instant recovery blood flow, and discharge after, radial support power reduces rapidly, it is ensured that do not damage
Hinder tunica intima.
Description of the drawings
For ease of explanation, the present invention is described in detail by following preferred embodiments and accompanying drawing.
Fig. 1 is that a kind of thrombosis with many helical structures of the present invention take a kind of structural representation of angle of pin device；
Fig. 2 is the structural representation that a kind of thrombosis with many helical structures of the present invention take pin device another kind angle；
Fig. 3 is the structural representation that a kind of thrombosis with many helical structures of the present invention take part-structure in pin device；
Wherein reference is：
1st, the first actuator；2nd, the second actuator；3rd, inner ring conduit；4th, outer ring conduit；5th, proximal marker ring；6th, distal marker
Ring；7th, guide pin bushing；8th, coiled wire；9th, spiral rifling striped；10th, the 3rd actuator；11st, center seal wire；12nd, eccentric pendulum；13、
Barb；14th, labelling；15th, spring reclaims silk；16th, worm gear；17th, worm screw；18th, motor.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, and
It is not used in the restriction present invention.
Referring to Fig. 1-3, a kind of thrombosis with many helical structures of the present invention take pin device, including：First actuator 1,
Second actuator 2, inner ring conduit 3, outer ring conduit 4, proximal marker ring 5, distal marker ring 6, guide pin bushing 7, coiled wire 8；This
One actuator 1 drives the outer ring conduit 4 to rotate with 4 drive connection of outer ring conduit；The inner ring conduit 3 is arranged on the outer ring conduit
In 4 and two ends are stretched out, one end drive connection that second actuator 2 is stretched out with the inner ring conduit 3 drives the inner ring conduit 3 to revolve
Turn, the other end that the inner ring conduit 3 stretches out is connected with the distal marker ring 6；The proximal marker ring 5 is axially slidably set in
On the outer ring conduit 4, the end of the proximal marker ring 5 is extended with multiple coiled wires 8, the end of multiple coiled wires 8
It is connected with the distal marker ring 6；The multiple spiral riflings matched with multiple coiled wires 8 are provided with 7 inwall of guide pin bushing
Striped 9, multiple coiled wires 8 are arranged on when being compressed in multiple spiral rifling stripeds 9, multiple coiled wires 8 not by
Stretch out during compression and arrange to form spring support in uniform spiral outside the guide pin bushing 7.
Preferably, the thrombosis take pin device also includes the 3rd actuator 10, center seal wire 11；The center seal wire 11 is arranged
In the inner ring conduit 3 and stretch out, the 3rd actuator 10 is driven in this with one end drive connection that the center seal wire 11 stretches out
Heart seal wire 11 vibrates, and the other end of the center seal wire 11 is connected with the distal marker ring 6.
Preferably, the thrombosis take pin device also includes eccentric pendulum 12, this is stretched out in the other end of the center seal wire 11
Distal marker ring 6 is connected with the eccentric pendulum 12.
Preferably, being provided with the multiple barbs 13 for pointing to the inner ring conduit 3 on multiple coiled wires 8.
Preferably, being provided with multiple coiled wires 8 for recognizing the labelling 14 of the spring support rotation direction.
Preferably, arranging multiple springs on the distal marker ring 6 reclaims silks 15, multiple springs reclaim silks 15 with multiple
The end of the coiled wire 8 connects one to one.
Preferably, the plurality of coiled wire 8 is Nitinol memory guide wire.
Preferably, first actuator 1 and the second actuator 2 include worm gear 16, worm screw 17, motor 18；The worm gear
16 are set on the inner ring conduit 3 or outer ring conduit 4, and the motor 18 is coaxially connected with the worm screw 17, the worm screw 17 and the worm gear
16 engagement connections.
Preferably, the quantity of multiple coiled wires 8 is four, be evenly distributed setting.
Preferably, the 3rd actuator 10 is vibrating motor 18.
Specifically, inner ring conduit 3 is cased with inside the outer ring conduit 4 in this device, be cased with center seal wire inside inner ring conduit 3
11, conduit 4 head end in outer ring is coaxially connected with worm gear 16 by feather key, and outer ring conduit 4 can be on worm gear 16 axially slidably, snail
Wheel 16 engages worm screw 17, and worm screw 17 is fixedly and coaxially connected motor 18, and conduit 4 head end in outer ring is extended with inner ring conduit 3, inner ring conduit
The coaxial feather key of 3 head ends connects worm gear 16, and inner ring conduit 3 can be on worm gear 16 axially slidably, and worm gear 16 engages worm screw 17, snail
Bar 17 is fixedly and coaxially connected motor 18, and 3 head end of inner ring conduit is extended with center seal wire 11, and center seal wire 11 has been fixedly and coaxially connected
Vibrating motor, is coaxially cased with proximal marker ring 5 on the outer ring conduit 4 of 16 side of worm gear, proximal marker ring 5 is hollow, near-end mark
Note ring 5 can be on outer ring conduit 4 axially slidably, and 5 left surface of proximal marker ring stretches out 4 helical disks with even circumferential distribution
The spring support of the Nitinol memory guide wire composition of rotation, in spring support, every spiral Nitinol memory guide wire is uniformly distributed
There are labelling 14 and barb 13, two relative spiral Nitinol memory guide wire head and the tail to be partly provided with two labellings 14, separately
Two outer relative spiral Nitinol memory guide wire head and the tail are partly provided with a labelling 14, are differentiated with this and are confirmed
The rotational case of spring support, on spiral Nitinol memory guide wire, each barb 13 is directed to 11 direction of center seal wire, spiral
It is cased with guide pin bushing 7 on the outside of Nitinol memory guide wire, 7 inner hollow of guide pin bushing, 7 inwall of guide pin bushing uniformly a plurality of spiral rifling striped 9
Distribution, less than the spiral race diameter that spring support is trailed naturally, spring support is in guide pin bushing 7 for 7 internal circumference diameter of guide pin bushing
It is the state that is compressed in spiral outer ring during portion, after spring support departs from guide pin bushing 7, spring support is at nature stretch-like
State, accesses outer ring conduit 4 on the right side of proximal marker ring 5, left side pass-out inner ring conduit 3, and 3 tail end of inner ring conduit has been fixedly and coaxially connected
Distal marker ring 6, the distribution of 6 right flank even circumferential of distal marker ring are extended with 4 springs and reclaim silk 15, and every spring reclaims silk
15 other ends connect the spiral Nitinol memory guide wire of corresponding spring support near the part of tail end, and distal marker ring 6 is leaned on
Lateral surface stretches out center seal wire 11, the eccentric pendulum 12 of 11 eccentric connection of center seal wire, the center of gravity of eccentric pendulum 12 and spiral center
Line is not arranged on the same straight line.
The spring support full retraction of initial 4 spiral Nitinols memory guide wire composition in guide pin bushing 7, when needing work
When, guide pin bushing 7 is stretched at vascular thrombosis position, the motor 18 in the first actuator 1 is opened, motor 18 is rotated and drives 17 turns of worm screw
Dynamic, because worm screw 17 engages with worm gear 16 worm screw 17 drives worm gear 16 to rotate again, worm gear 16 rotates 4 turns of outer ring conduit of drive
Dynamic, outer ring conduit 4 is rotated and drives spiral Nitinol memory guide wire to rotate, because 7 inwall of guide pin bushing is with equally distributed a plurality of
Spiral rifling striped 9, so spiral Nitinol memory guide wire can be rotated out of along the track of spiral rifling striped 9 when rotating
Guide pin bushing 7,4 head end of outer ring conduit can occur axial movement relative to worm gear 16 and slide to far-end, open vibrating motor, vibration electricity
Machine drives center seal wire 11 to rotate, and center seal wire 11 rotarily drives eccentric pendulum 12 and rotates, and the rotation of eccentric pendulum 12 can be formed partially
The heart vibrates, and drives spring support body vibration, and now the spring support of spiral Nitinol memory guide wire composition drives conduit to lead
Silk rotates pushes ahead disengaging guide pin bushing 7 while vibrating, and in vibration, barb 13 can be hooked and take more blood spring support
Bolt, spring support are constantly pushed ahead, until thrombosis are all wrapped up, the motor 18 and vibration in the first actuator 1 of closing
Motor, opens the motor 18 in the second actuator 2, and motor 18 drives worm screw 17 to rotate, and worm screw 17 drives worm gear 16 to rotate, worm gear
16 drive inner ring conduits 3 are rotated, and inner ring conduit 3 drives distal marker ring 6 to rotate clockwise, and because proximal marker ring 5 and outer
Circle conduit 4 is not rotated, and spring reclaims silk 15 and drives one end of spring support to be rotated, and spring support one end rotates, and makes
Obtain spiral Nitinol memory guide wire screw diameter to start to shrink at, diameter diminishes, because the length of Nitinol memory guide wire is
Fixed, so spiral Nitinol memory guide wire screw diameter reduces so that between proximal marker ring 5 and distal marker ring 6
Distance increase, there is axial movement relative to worm gear 16 and slide at head end in inner ring conduit 3, while by head end fraction spiral
Nitinol memory guide wire is pushed in guide pin bushing 7, and now thrombosis are tightly wrapped up spring support jail, and barb 13 vibrates and revolves
Turn to tighten up to catch on more thrombosis, when the screw diameter of spring support is contracted to minimum, closes vibrating motor and second and drive
Motor 18 in part 2, reversely starts motor 18, and now spiral Nitinol memory guide wire is along 7 spiral inner wall rifling bar of guide pin bushing
The rotation of stricture of vagina 9 is recycled to inside guide pin bushing 7.After spring support is all recycled to 7 inside of guide pin bushing, motor 18 is closed, the device is taken out.
The device has the advantage that：
1st, spring is constituted using the mutual spiral of the spiral Nitinol memory guide wire of two or more than two of even circumferential distribution
Support is extracted to thrombosis, is because that helical structure can effectively shrink and launch, energy when expansion from helical structure
Parcel thrombosis in enough maximum magnitudes, contraction when be capable of will parcel thrombosis fastening firm, in order to avoid there is the situation of thrombosis leakage.
2nd, the barb 13 that be set to point to helical centre is uniformly distributed on spring support internal helicoid circumference for capturing thrombosis,
It is capable of the crawl thrombosis of strength during taking bolt, more difficult for drop-off.
3rd, feather key connection between worm gear 16 and outer ring conduit 4, when spring support discharges, outer ring conduit 4 is relative to worm gear 16
There is axial movement distally, feather key connection between worm gear 16 and inner ring conduit 3, when spring support shrinks, inner ring is led
There is the axial movement to head end direction relative to worm gear 16 in pipe 3.
4th, proximal marker ring 5 is hollow with 6 axle center of distal marker ring, sets between proximal marker ring 5 and distal marker ring 6
It is equipped with inner ring conduit 3 to connect, proximal marker ring 5 is not rotated, distal marker ring 6 is rotated and reclaims the pulling spring of silk 15 by spring
Frame is shunk spring support screw diameter.
5th, outer ring conduit 4, inner ring conduit 3 and center seal wire 11 respectively have motor to be driven, and can be classified realization and push away
Enter, screw-pinch, vibration hook etc. a series of operation, it is to avoid cause to take the halfway phenomenon of bolt.
6th, the tail end of seal wire is connected with eccentric pendulum 12, and when vibrating motor starts, center seal wire 11 drives eccentric pendulum 12
Make eccentric rotary, cause spring support to vibrate so that barb 13 can capture more thrombosis during vibration, it is to avoid to lose
Leakage.
7th, many spiral rifling stripe designs of the 7 endoporus inwall of guide pin bushing using circle distribution, spiral Nitinol memory guide wire
The track of 7 internal whorl of guide pin bushing is followed at the uniform velocity outwards to carry out stable propulsion and shrink in rotation.
8th, after spring support departs from 7 screw diameter of guide pin bushing increase parcel thrombosis, during contraction, screw diameter reduces spring
Frame length is extended to both sides, and spring support head end portion can independently return to the reverse rotation retraction for causing the later stage inside guide pin bushing 7
The process of guide pin bushing 7 can be smoothed out.
9th, the similar self-expandable stent of the spiral Nitinol memory guide wire of spring support, but because its spinning behaviour, release
When putting, adherence quality is more preferable relative to the adherent performance of existing self-expandable stent.
10th, spiral Nitinol memory guide wire is mellow and full smooth spiral in release in the structure of contact blood vessel
Memory guide wire, it is less to compare more existing self-expandable stent to the damage of blood vessel on the way, can mitigate patient's pain to the full extent
Bitter.
11st, spring support can be discharged in intravascular completely, the spiral Nitinol memory guide wire screw-pinch energy when reclaiming
Enough thoroughly take bolt, and when reclaiming spring support spiral Nitinol memory guide wire can screw-pinch close up, maximum journey
Prevent speckle from departing from degree.
12nd, can launch naturally rapidly to fill blood vessel, phase after spiral Nitinol memory guide wire is discharged from guide pin bushing 7
When in implementing a stent-assisted angioplasty, can instant recovery blood flow, and after discharging, radial support power reduces rapidly, really
Protect not arterial intima.
Presently preferred embodiments of the present invention is the foregoing is only, not in order to limit the present invention, all in essence of the invention
Any modification, equivalent and improvement that is made within god and principle etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of thrombosis with many helical structures take pin device, it is characterised in that include：First actuator, the second actuator,
Inner ring conduit, outer ring conduit, proximal marker ring, distal marker ring, guide pin bushing, coiled wire；First actuator is outer with described
Circle conduit drive connection drives the outer ring conduit rotation；The inner ring conduit is arranged in the outer ring conduit and stretches out two
End, second actuator drive the inner ring conduit rotation with one end drive connection that the inner ring conduit stretches out, described interior
The other end that circle conduit stretches out is connected with the distal marker ring；The proximal marker ring is axially slidably set in described outer
On circle conduit, the end of the proximal marker ring is extended with multiple coiled wires, the end of multiple coiled wires with
The distal marker ring connection；The multiple spiral riflings matched with multiple coiled wires are provided with the guide pin bushing inwall
Striped, multiple coiled wires are arranged on when being compressed in multiple spiral rifling stripeds, and multiple coiled wires are not
Stretch out when being compressed and arrange to form spring support in uniform spiral outside the guide pin bushing.
2. a kind of thrombosis with many helical structures according to claim 1 take pin device, it is characterised in that the thrombosis
Taking pin device also includes the 3rd actuator, center seal wire；The center seal wire is arranged in the inner ring conduit and stretches out, described
3rd actuator drives the center seal wire vibration with one end drive connection that the center seal wire stretches out, the center seal wire
The other end is connected with the distal marker ring.
3. a kind of thrombosis with many helical structures according to claim 2 take pin device, it is characterised in that the thrombosis
Taking pin device also includes that eccentric pendulum, the other end of the center seal wire stretch out the distal marker ring with the eccentric pendulum
Connection.
4. a kind of thrombosis with many helical structures according to claim 1 take pin device, it is characterised in that multiple described
The multiple barbs for pointing to the inner ring conduit are provided with coiled wire.
5. a kind of thrombosis with many helical structures according to claim 1 take pin device, it is characterised in that multiple described
It is provided with coiled wire for recognizing the labelling of the spring support rotation direction.
6. a kind of thrombosis with many helical structures according to claim 1 take pin device, it is characterised in that the distal end
Multiple springs are set on Marking ring and reclaim silk, multiple springs are reclaimed silk and corresponded with the end of multiple coiled wires
Connection.
7. a kind of thrombosis with many helical structures according to claim 1 take pin device, it is characterised in that the plurality of
The coiled wire is Nitinol memory guide wire.
8. a kind of thrombosis with many helical structures according to claim 1 take pin device, it is characterised in that described first
Actuator and the second actuator include worm gear, worm screw, motor；The worm gear is set in the inner ring conduit or outer ring conduit
On, coaxially connected with the worm screw, the described worm screw of the motor is connected with worm gear engagement.
9. a kind of thrombosis with many helical structures according to claim 1 take pin device, it is characterised in that multiple described
The quantity of coiled wire is four, and be evenly distributed setting.
10. a kind of thrombosis with many helical structures according to claim 2 take pin device, it is characterised in that described
Three actuators are vibrating motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710028973.XA CN106491181B (en) | 2017-01-16 | 2017-01-16 | Thrombus embolectomy device with multi-spiral structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710028973.XA CN106491181B (en) | 2017-01-16 | 2017-01-16 | Thrombus embolectomy device with multi-spiral structure |
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| Publication Number | Publication Date |
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| CN106491181A true CN106491181A (en) | 2017-03-15 |
| CN106491181B CN106491181B (en) | 2019-12-31 |
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| CN201710028973.XA Active CN106491181B (en) | 2017-01-16 | 2017-01-16 | Thrombus embolectomy device with multi-spiral structure |
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