CN207768466U - The full development of one kind taking bolt holder and thrombus withdrawing device - Google Patents
The full development of one kind taking bolt holder and thrombus withdrawing device Download PDFInfo
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- CN207768466U CN207768466U CN201720508107.6U CN201720508107U CN207768466U CN 207768466 U CN207768466 U CN 207768466U CN 201720508107 U CN201720508107 U CN 201720508107U CN 207768466 U CN207768466 U CN 207768466U
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Abstract
The utility model is related to the field of medical instrument technology, more particularly to a kind of full development takes bolt holder and takes the thrombus withdrawing device of bolt holder with this, including the circumferential rack body expanded self along its longitudinal axis, running through in the overall structure of the rack body has a certain number of development structures, the development structure is made of not perspective ray material, it can be during taking bolt, definitely take the form of bolt holder and thrombus, accurate identification takes bolt holder effectively to take bolt length, judgement takes whether bolt holder discharges and expand completely, intuitive reaction takes contact situation of the bolt holder with thrombus, it is in situ narrow further to judge whether lesion vessels have, surgical operation advantageous in this way and judgement, it effectively increases and takes bolt success rate.
Description
Technical field
The utility model is related to the field of medical instrument technology, more particularly to a kind of full development to take bolt holder and take bolt with this
The thrombus withdrawing device of holder.
Background technology
Palsy is also known as apoplexy, and cerebral apoplexy is one group using brain tissue ischemia and heamorrhagic lesions symptom as main clinical manifestation
Acute cerebrovascular diseases, because it has the characteristics that high incidence, high mortality, high disability rate, high relapse rate and high financial burden,
Seriously endanger public life and health and quality of life.The incidence of China's cerebral apoplexy is just in annual 8.7% speed at present
It rises, China becomes first cause of death every year because the number of Stroke Death has been more than tumour and angiocardiopathy.
Palsy is divided into ischemic cerebral apoplexy and two kinds of hemorrhagic apoplexy, wherein cerebral arterial thrombosis accounted for 70% to
80%.In the patient that Ischemic Stroke occurs, the consequence caused by the intracranial vessel occlusion caused by a variety of causes is most tight
Weight is the difficult point for the treatment of all the time, and current therapy includes intravenous pharmacy thrombolysis, artery medicine thrombolysis, intravascular machine
Tool takes bolt and several method to be used in combination.Artery and vein thrombolysis is the conventional method of acute ischemic stroke treatment, but this
Method requires height, strict demand patient idiopathy to rush to hospital in 3~4.5 hours and receive associated treatment therapeutic time window,
Also there are many restrictions to drug, and low for the vessel occlusion induced Acute Ischemic Stroke recanalization rate of most serious.
Artery machinery takes pin device to obtain extensive concern because of having the advantages that following many：Quickly lead to again, more
Low hemorrhagic conversion rate and palsy intervention time window can extend.Again for the acute ischemic stroke blood vessel caused by vessel occlusion
It is connected with satisfactory clinical effectiveness.United States food and drag administration (Food and Drug Administration,
FDA Merci Retrieval (2004)) are had approved and Penumbra Stroke Systems are used as the first generation in (2008)
Machinery takes pin device.
But at present for machinery takes pin device, problems are still faced during taking bolt：As taken pin device mostly
All it is only to design single development point, the contact situation for taking pin device with thrombus can neither be clearly observed during taking bolt,
Position and the form that thrombus cannot be specified, cause thrombus to arrest rate low.
Utility model content
The purpose of this utility model is to provide a kind of full developments to take bolt holder, by taking one fixed number of bolt holder whole installation
The developing mark point of amount, solves the contact situation that can neither be clearly observed during taking bolt and take pin device with thrombus, also not
It the problem of position of the clear thrombus of energy and form, improves thrombus and arrests rate.
The another object of the utility model is to propose a kind of thrombus withdrawing device taking bolt holder with above-mentioned full development.
For this purpose, the utility model uses following technical scheme：
A kind of full rack body for taking bolt holder, including circumferentially expand self along its longitudinal axis that develops, the rack body
Through the development structure for having certain amount different form or same form in overall structure, the development structure is by not perspective ray
Material is made, and the form of the rack body and thrombus can be shown during taking bolt.
Preferably, the rack body includes sequentially connected remote area, intermediate region and is connected with push rod
Proximal end region, the remote area, intermediate region and proximal end region are both provided with certain amount different form or same form
Development structure.
Preferably, the development structure includes development point, the development point, which is done, to be circlewise wound on rack body；Or
Person, does slabbing or tubulose is embedded in inside or outside rack body；Alternatively, setting development point is fixed on rack body in advance
Portion.
Preferably, the remote area includes the first closed loop net unit, the intermediate region includes multiple second closed loops
Net unit, the proximal end region include multiple third closed loop net units, spiral according to setting from remote area to proximal end region
First closed loop net unit, the second closed loop net unit and third closed loop net unit connected in sequence are in counterclockwise or clock wise spirals knot
Structure.
Preferably, the development point is arranged according to the helix of the helical structure；Alternatively, according to the rack body
Axial setting；Alternatively, according to the circumferentially disposed of the rack body.
Preferably, can be grown come effective work of the respectively rack body by the arrangement distance of the development point
Degree.
Preferably, the development structure includes development point and strip-like developing pipe.
Preferably, the development point is arranged on the rack body of the remote area distalmost end, in addition, the holder sheet
Body is provided with the strip-like developing pipe on the whole, the parallel rack body setting of the strip-like developing pipe or is wound in the rack body
On.
Preferably, the thickness of the development structure is 0.02-0.1mm, preferably 0.03-0.08mm.
A kind of thrombus withdrawing device, including described in any of the above item it is full development take bolt holder, it is described to take the close of bolt holder
By fettering a point connection push rod, the outer cover of the push rod is equipped with micro- to be led take that bolt holder is pressed into it end regions
Pipe, the microtubular are connect by microtubular connector with sheath is imported.
The beneficial effects of the utility model：
The utility model provides a kind of full rack body for taking bolt holder, including circumferentially expand self along its longitudinal axis that develops,
Through there is a certain number of development structures in the overall structure of rack body, structure of developing is made of not perspective ray material, energy
Enough during taking bolt, the form of bolt holder and thrombus, accurate identification is definitely taken to take bolt holder effectively to take bolt length, sentence
Disconnected to take whether bolt holder discharges and expand completely, intuitive reaction takes contact situation of the bolt holder with thrombus, further judges lesion
It is in situ narrow whether blood vessel has, and surgical operation advantageous in this way and judgement effectively increase and take bolt success rate.
Description of the drawings
Fig. 1 is the flat deployable structure schematic diagram that the full development that the utility model embodiment one provides takes bolt holder；
Fig. 2 is the helical structure schematic diagram one that the full development that the utility model embodiment one provides takes bolt holder；
Fig. 3 is the helical structure schematic diagram two that the full development that the utility model embodiment one provides takes bolt holder；
Fig. 4 is the helical structure schematic diagram three that the full development that the utility model embodiment one provides takes bolt holder；
Fig. 5 is the helical structure schematic diagram that the full development that the utility model embodiment two provides takes bolt holder；
Fig. 6 is the partial structural diagram that the full development that the utility model embodiment two provides takes bolt holder；
Fig. 7 is the structural schematic diagram of the full development point fixed part for taking bolt holder that develops provided by the utility model；
Fig. 8 is the structural schematic diagram one of thrombus withdrawing device provided by the utility model；
Fig. 9 is the structural schematic diagram two of thrombus withdrawing device provided by the utility model.
In figure：
100- rack bodies；101- development point fixed parts；110- remote areas；111- the first closed loop net units；In 120-
Between region；121- the second closed loop net units；130- proximal end regions；131- third closed loop net units；141- development points；142- develops
Band；200- push rod；400- imports sheath；500- microtubulars；600- fetters point.
Specific implementation mode
The technical issues of to make the utility model solve, the technical solution of use and the technique effect that reaches are clearer,
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.For ease of description,
It is described below and has used term " proximal end " and " distal end ", wherein " proximal end " refers to, close to one end of operating side, distally referring to
One end far from operating side.
Embodiment one
The utility model provides a kind of full development and takes bolt holder, and shown in Fig. 1-Fig. 4 and Fig. 7, full development takes the bolt holder to include
The circumferential rack body 100 expanded self along its longitudinal axis, through there is a certain number of developments in the overall structure of rack body 100
Structure, the development structure are made of not perspective ray material, can definitely take bolt holder and thrombus during taking bolt
Form, accurate identification take bolt holder that bolt length, judgement is effectively taken to take whether bolt holder discharges and expand completely, and intuitive reaction takes
Contact situation of the bolt holder with thrombus, further judges whether lesion vessels have narrow, surgical operation advantageous so in situ
With judgement, effectively increases and take bolt success rate.
Specifically, rack body 100 include sequentially connected remote area 110, intermediate region 120 and with push rod 200
The proximal end region 130 being connected.The setting of remote area 110 development structure takes the reality of bolt holder distalmost end arrival blood vessel convenient for observation
Border position；The setting development structure of intermediate region 120 can clearly judge contact situation of the blood vessel with thrombus；Proximal end region 130 is set
Setting development structure can indicate to take effective operation interval of bolt holder.
Remote area 110 includes multiple first closed loop net units 111, and multiple first closed loop net units 111 are connected with each other shape
At tube-in-tube structure, intermediate region 120 includes multiple second closed loop net units 121, and multiple second closed loop net units 121 are connected with each other
Tube-in-tube structure is formed, proximal end region 130 includes multiple third closed loop net units 131, multiple 131 phase of third closed loop net unit interconnection
It connects to form cone cylinder structure.First closed loop net unit 111, the second closed loop net unit 121 and third closed loop net unit 131 are by more
Root wave bar encloses class polygonized structure, and the intersection point positioned at the outermost wave bar being connected of remote area 110 is wave head.From
Remote area 110 is to proximal end region 130 according to the spiral first closed loop net unit 111 connected in sequence of setting, the second closed loop net
Unit 121 and third closed loop net unit 131 are in counterclockwise or clock wise spirals structure.
In the present embodiment, development structure is development point 141, and development point 141, which can be done, is circlewise wound on wave bar itself；
Slabbing can be done or tubulose is embedded in inside or outside wave bar；A development point fixed part 101, ginseng can also be set on wave bar in advance
See Fig. 7.
The quantity of development point in each region can be arranged according to the quantity of wave head, can be equal to or less than the number of wave head
Amount；Development point quantity can also be set according to the length of rack body 100.Referring to Fig. 1, development point 141 can be according to spiral knot
The helix of structure is arranged, it is preferred that in proximal end region, development point 141 is set to the slope Kou Chu of cone cylinder structure；Alternatively, referring to
Fig. 2, development point 141 can also be according to the circumferentially disposed of rack body 100；Alternatively, referring to Fig. 3, development point 141 can also be according to
The axial setting of rack body 100.Preferably, development 141 rows of point can be utilized in conjunction with two kinds of set-up modes of circumferential and axial
Cloth distance carrys out effective active length of respectively rack body 100, and (remote area 110 and intermediate region 120 are rack body 100
Main body is the effective active length for taking bolt), it can be by effective work of rack body 100 using the arrangement distance of development point 141
Length is divided into N section, concrete numerical values of the N more than or equal to 2, N can depending on the specific length of rack body 100, referring to
Effective active length of rack body 100 is divided into two parts, the development point region of remote area 110 by Fig. 4, development point 141
Length to the point region of developing of intermediate region 120 is L1, development point region the showing to proximal end region 130 of intermediate region 120
The length in shadow point region be L2, then L1 be approximately equal to L2, when take bolt holder discharge to it is intravascular when, can clearly identify blood vessel and blood
The length of bolt.
The thickness for structure of developing is 0.02-0.1mm, preferably 0.03-0.08mm, and thickness setting, which both can guarantee, is taking bolt
When clearly identify the length of blood vessel and thrombus, and can save to greatest extent make development structure not perspective ray material, reach
Cost-effective purpose is arrived.
In addition, the mesh of the first closed loop net unit 111 and third closed loop net unit 131 is respectively less than the second closed loop net unit
121.Pass through the small mesh design of the first closed loop net unit 111 of remote area 110 so that remote area 110 is in release process
When arresting thrombus, larger radial support power is generated, when rack body 100 is withdrawn, is conducive to drag thrombus, and withdrawing
Thrombus effect not easily to fall off in journey, the second closed loop net unit 121 for effectively making up the intermediate region 120 of rack body 100 are returning
When removing thrombus be displaced caused by take bolt to fail.It is set by the big mesh of the second closed loop net unit 121 of intermediate region 120
Meter so that rack body 100 can be effectively embedded into inside thrombus when being opened among thrombus, and thrombus is not easy to shred or cut into small
Shape is blocky, convenient for thrombus is completely taken out.By the small mesh design of the third closed loop net unit 131 of proximal end region 130, withdraw
Shi Youxiao makes up the second closed loop net unit 121 of intermediate region 120, the thrombus when withdrawing is avoided to be displaced.Remote area 110
It is designed with the small mesh of proximal end region 130, the front side and rear side of thrombus is limited, cooperation intermediate region 120 is suitable by thrombus
Profit is taken out.
Embodiment two
Fig. 5 and Fig. 6 shows embodiment two, wherein identical as embodiment one or corresponding parts use and embodiment one
Corresponding reference numeral.For simplicity, the distinctive points of embodiment two and embodiment one are only described.Difference place is, develops
Structure includes development point 141 and strip-like developing pipe 142.
Referring to Fig. 5, the development point 141 is set on 110 outermost wave bar of remote area, in addition, being set on whole wave bar
It is equipped with strip-like developing pipe 142,142 parallel wave bar of strip-like developing pipe or is wound on wave bar, the strip-like developing pipe 142 being arranged on wave bar and development point
141 are connected；Alternatively, referring to Fig. 6, development point 141 is set at 110 wave head of remote area, and fixed seat is provided at wave head, is developed
Band 142 is wound on by sub-thread or multiply on whole wave bar, and strip-like developing pipe 142 is not attached to wave head end development point 141.
Embodiment three
As shown in Figure 8 and Figure 9, the utility model also provides a kind of thrombus withdrawing device, including any of the above embodiment institute
The full development stated takes bolt holder, takes the close end 130 of bolt holder by fettering 600 connection push rod 200 of point, push rod 200
Outer cover is equipped with the microtubular 500 that bolt holder can will be taken to be pressed into it, and microtubular 500 passes through microtubular connector and importing sheath
400 connections.The rack body 100 is strapped in push rod 200, the constraint developing ring of constraint point 600 or the beam for the filament winding that develops
It ties up spring to fix, fixed form can be that welding, riveting or pressure are held.The structure for taking bolt holder and operation principle are referring to upper
Embodiment is stated, details are not described herein.
Preparation is taken out carrying out thrombus, rack body 100 is compressed to imports in sheath 400 first, led in advance
It crosses importing sheath 400 with microtubular connector to be connected, pushes push rod 200, rack body 100 that can smoothly enter into microtubular
In 500 tube chambers, rack body 100 will be delivered to by microtubular 500 determined according to radiography or other diagnostic means later
Thrombus position, to form tube chamber so that rack body 100 is discharged in vascular lesion position and can be realized by push rod 200
Push pull maneuver precisely aligns, to be converted between compressive state and release conditions.
When interventional treatment, microtubular 500 is delivered to diseased region, and pass through thrombus, fixed microtubular 500.By pushing away
Bar 200 is sent to be pushed into rack body 100, according to thrombus position determined by radiography or other diagnostic means, to withdraw microtubular
500 make rack body be discharged in distal end, discharge the 1/3-1/4 of entire rack body 100, rack body 100 is distally flicking anchor
Surely vascular wall is lived, is then slowly pushed forward push rod 200, while withdrawing microtubular 500 under reaction force, discharges microtubular 500
Tension, repeatedly until all release of rack body 100.
Due to the elasticity and method for releasing collective effect of shape-memory material, take bolt holder that can be completely embedded into thrombus
Portion.It waits for after a certain period of time, push rod of pulling back bar 200 withdraws and bolt holder is taken to capture thrombus, until bolt holder will be taken to be led together with micro-
Pipe 500 is withdrawn together to be withdrawn from vitro, and completion entirely takes bolt process.Rack body 100 as a whole is held by pressure and imports sheath 400
It is interior, it is then introduced into microtubular 500, that is, rack body 100 is delivered to diseased region by microtubular 500.
The development structure being distributed on the rack body 100, to have to the process of arresting and withdraw of thrombus when taking bolt
It is observed in real time without falling off, bolt microtechnique is specifically taken with guidance so that take bolt more accurate.
Obviously, above-described embodiment of the utility model is used for the purpose of clearly illustrating the utility model example, and
It is not the restriction to the embodiment of the utility model.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
It is exhaustive.All any modification, equivalent and improvement made within the spirit and principle of the present invention etc., should be included in
Within the protection domain of the utility model claims.
Claims (8)
1. a kind of full development takes bolt holder, which is characterized in that including the circumferential rack body expanded self along its longitudinal axis, the branch
Frame ontology includes sequentially connected remote area, intermediate region and the proximal end region being connected with push rod, the remote area
Including multiple first closed loop net units, the intermediate region includes multiple second closed loop net units, and the proximal end region includes more
A third closed loop net unit, from remote area to proximal end region according to the spiral first closed loop net unit connected in sequence of setting,
Second closed loop net unit and third closed loop net unit are in counterclockwise or clock wise spirals structure；
Run through the development structure for having certain amount different form or same form in the overall structure of the rack body, and described
Structure of developing is arranged according to the helix of the helical structure；Alternatively, the axial direction according to the rack body is arranged；Alternatively, pressing
According to the circumferentially disposed of the rack body；
The development structure is made of not perspective ray material, and the rack body and thrombus can be shown during taking bolt
Form.
2. full development according to claim 1 takes bolt holder, which is characterized in that the remote area, intermediate region and close
End regions are both provided with the development structure of certain amount different form or same form.
3. full development according to claim 2 takes bolt holder, which is characterized in that the development structure includes development point, institute
It states to develop to put to do and circlewise be wound on rack body；Alternatively, doing slabbing or tubulose is embedded in inside or outside rack body；
Alternatively, a development point fixed part is arranged on rack body in advance.
4. it is according to claim 1 it is full development take bolt holder, which is characterized in that can by it is described development point arrangement away from
From the effective active length for carrying out the respectively rack body.
5. full development according to claim 2 takes bolt holder, which is characterized in that the development structure includes development point and shows
Shadow bands.
6. full development according to claim 5 takes bolt holder, which is characterized in that the holder sheet of the remote area distalmost end
The development point is set on body, in addition, the rack body is provided with the strip-like developing pipe on the whole, the strip-like developing pipe is parallel described
Rack body is arranged or is wound on the rack body.
7. according to claim 1-6 any one of them, development takes bolt holder entirely, which is characterized in that the thickness of the development structure
For 0.02-0.1mm, preferably 0.03-0.08mm.
8. a kind of thrombus withdrawing device, which is characterized in that including such as claim 1-7 any one of them, development takes bolt branch entirely
Frame, described to take the proximal end region of bolt holder by fettering point connection push rod, the outer cover of the push rod, which is equipped with, can will take bolt
Holder is pressed into the microtubular in it, and the microtubular is connect by microtubular connector with sheath is imported.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720508107.6U CN207768466U (en) | 2017-05-09 | 2017-05-09 | The full development of one kind taking bolt holder and thrombus withdrawing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720508107.6U CN207768466U (en) | 2017-05-09 | 2017-05-09 | The full development of one kind taking bolt holder and thrombus withdrawing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207768466U true CN207768466U (en) | 2018-08-28 |
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ID=63217726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720508107.6U Active CN207768466U (en) | 2017-05-09 | 2017-05-09 | The full development of one kind taking bolt holder and thrombus withdrawing device |
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|---|---|
| CN (1) | CN207768466U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109480958A (en) * | 2018-12-03 | 2019-03-19 | 魏铭 | It is a kind of to prevent that the flexible multi-pipe-diameter excessively cut takes bolt device |
| JP2021159275A (en) * | 2020-03-31 | 2021-10-11 | 株式会社Biomedical Solutions | Stent and catheter stent system |
-
2017
- 2017-05-09 CN CN201720508107.6U patent/CN207768466U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109480958A (en) * | 2018-12-03 | 2019-03-19 | 魏铭 | It is a kind of to prevent that the flexible multi-pipe-diameter excessively cut takes bolt device |
| CN109480958B (en) * | 2018-12-03 | 2023-12-01 | 魏铭 | Multi-adaptability multi-tube-diameter thrombus taking device capable of preventing excessive cutting |
| JP2021159275A (en) * | 2020-03-31 | 2021-10-11 | 株式会社Biomedical Solutions | Stent and catheter stent system |
| JP7299191B2 (en) | 2020-03-31 | 2023-06-27 | 大塚メディカルデバイス株式会社 | Stents and catheter-stent systems |
| US11877939B2 (en) | 2020-03-31 | 2024-01-23 | Otsuka Medical Devices Co., Ltd. | Stent and catheter-stent system |
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