CN101637416A - Intracavity stent conveying system for pre-implanting saccule at front end - Google Patents
Intracavity stent conveying system for pre-implanting saccule at front end Download PDFInfo
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- CN101637416A CN101637416A CN200810029852A CN200810029852A CN101637416A CN 101637416 A CN101637416 A CN 101637416A CN 200810029852 A CN200810029852 A CN 200810029852A CN 200810029852 A CN200810029852 A CN 200810029852A CN 101637416 A CN101637416 A CN 101637416A
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Abstract
The invention relates to an intracavity stent conveying system for pre-implanting a saccule at a front end, which belongs to the field of medical apparatuses. The saccule and a stent are designed integrally in the system; the saccule is designed at the far end of the stent; the saccule is arranged on an inner core and is separated from the stent, but is connected with the stent end to end; the farend and the near end of the saccule are provided with heavy metal markers not transmitting X rays; the stent is arranged at the near end of the saccule and is positioned in a cavity gap between the inner core and an outer sleeve; and the near end of the outer sleeve is provided with a safety lock. The release of the stent depends on the withdrawal of the outer sleeve relative to the inner core; and the stent can be released by unscrewing the safety lock, fixing the inner core and withdrawing the outer sleeve. The saccule can expand target lesions before releasing the stent, can anchor the inner core during releasing the stent, and can further expand the stent after releasing the stent. The intracavity stent conveying system makes stent implantation simpler, saves medical cost, shortens operation time, and reduces complications; and the saccule can anchor the inner core of the conveying system in operation so as to release the stent accurately.
Description
Technical field
The invention belongs to medical instruments field, particularly a kind of intracavity stent conveying system of pre-implanting saccule at front end.
Background technology
European scholar Gruntzig invention catheter with double-cavity saccule began from 1974, the very fast medical institutions in some advanced technology countries of Percutaneous Transluminal Angioplasty (being the PTA technology: the angiostenosis due to the expansion of employing microcatheter technology or logical again atherosclerosis or other reason or the method for occlusive pathological changes) are used for clinical one after another, and obtained the effect that makes medical circle attract attention, become the first-selected treatment means of angiostenosis-occlusive pathological changes.Subsequently, many scholars have carried out many researchs with regard to material, configuration, the structure of conduit and sacculus and have improved, and with its from the application extension of vascular system to non-vascular system.
Along with the increase of case, the maturation of empirical accumulation and intracavity sacculus forming technique, intracavity (vascular and non-vascular) balloon dilatation exposes some drawbacks in the curative effect direction, wherein high the most outstanding with the incidence rate of postoperative restenosis.The incidence rate of restenosis becomes the impassable obstacle of intracavity sacculus plasty due to the high intracavity sacculus plasty, has also influenced it and has deeply used further.Under above-mentioned background, in the eighties in 20th century middle and late stage several new techniques such as laser angioplasty, tremulous pulse medicated porridge sample material excision and intracavity (vascular and non-vascular) stent forming art have appearred successively, through clinical practice, intracavity (vascular and non-vascular) stent forming art becomes current main intracavity forming operation.
Along with extensive, the extensive application of intracavity stent, expose its many weak points again:
1. have any problem during the accurate location of support in dispose procedure, for the operator who is lacking in experience, for with the bigger position of respiratory movement amplitude (as inserting of the inserting of biliary tract rack in the liver, airway stent etc.), for ill-matched patient (child, old man or coma patient etc.), unit for the X line camera installation that high quality graphic can't be provided, support usually can't discharge accurately, and this means sorry and malpractice for the operator, then means disaster for the patient.
2. foley's tube and support packing (has the outside of its support casing of class foley's tube at sacculus at present, balloon inflation before support discharges, support is expanded to a sizing value and attaches in the tube chamber, this system can't an actor's rendering of an operatic tune before support discharges in balloon expandable, support discharges the nonelastic tension force in back, fully by elasticity of blood vessels retraction force fixed support), need in the art to exchange sacculus and support repeatedly with exchange guidewire, increased operating time, the dosage of increased the doctor, suffering from contact with X-ray, medical expense correspondingly reach with the operation complications associated with arterial system also to be increased.
Summary of the invention
The objective of the invention is to overcome the deficiency of existing stent delivery system, provide a kind of and can accurately locate and the intracavity stent conveying system of sacculus-rack integral.
The intracavity stent conveying system of pre-implanting saccule at front end of the present invention improves existing stent delivery system; go up a design sacculus (2) at the inner core (1) of support front end; this sacculus is separated from one another but join end to end with support (3) on inner core, is positioned at long protecting tube (4).
Sacculus of the present invention is positioned at the head end of induction system inner core, with be opened on induction system inner core near-end side on unique the communicating of liquid injection pipe (5), there are two radiopaque heavy metal labellings (Marker) (6) at its far and near two ends, and this sacculus can be designed to different length and shape according to the different parts that support uses.Be placed on after the sacculus, and join end to end with sacculus, support is compressed in the lacuna of inner core and trocar sheath (7).Same, also there is radiopaque heavy metal labelling (6) at the far and near two ends of support, so that under perspective, accurately locate, the far-end of trocar sheath is concordant with the far-end of support, trocar sheath near-end side connects the liquid injection pipe (8) of a belt switch, during injecting fluid in it (normal saline or contrast agent), liquid only can be from the far-end of trocar sheath or support unobstructed outflow, the near-end of trocar sheath is a safety lock (9), and the outer sleeve pipe of the release of support is with respect to the recession of inner core, when discharging support, unclamp safety lock, fix inner core, return and remove trocar sheath, support can discharge fully.
The inner core of the intracavity stent conveying system of pre-implanting saccule at front end of the present invention is the inner chamber of hollow, its far-end is the tip of chap gradually, near-end is Rule adapter (10), and intracavity can be by the seal wire of corresponding specification, so that this stent delivery system is introduced in the body smoothly in this.
The liquid injection pipe (5) that the intracavity stent conveying system of pre-implanting saccule at front end of the present invention is positioned at inner core near-end belt switch only communicates with sacculus; The liquid injection pipe (8) that is positioned at the trocar sheath near-end only communicates with shelf layer (lacuna between trocar sheath and the inner core).
In order to improve biocompatibility or hydrophilic, the intracavity stent conveying system each several part material of pre-implanting saccule at front end of the present invention can use heparin coating technology or other biotechnology.Be convenient location, the intracavity stent conveying system each several part of pre-implanting saccule at front end of the present invention can add radiopaque material as required.
The intracavity stent conveying system each several part of pre-implanting saccule at front end of the present invention can be selected different metals and medical macromolecular materials as required for use, can produce the product of different hardness, flexibility and compliance according to different application position and different purposes.
The stent delivery system of pre-implanting saccule at front end of the present invention comprises and is used for vascular system, air ducting system, gi system, biliary system, urethra system and TIPSS
1Support.In view of the particularity of coronary artery intracavity lesion, the present invention does not comprise the stent delivery system that is used for coronary angioplasty.
The present invention has following beneficial effect:
1. support of the present invention-sacculus integrated design, the sacculus that presets in the system and the specification of support are complementary, and it is more convenient that the operator is used, and can save medical expense, can shorten operating time, can reduce complication.Support-sacculus integrated, can avoid the exchange repeatedly of sacculus and support in the art, shorten the time of operation technique, shorten the doctor, suffer from the time of exposing, alleviate the injury of lonizing radiation to doctor, trouble both sides, reduce the consumption of contrast agent, reduce complication long because of the operating time and that the contrast agent consumption is too much relevant; Compare with the support and the sacculus of independent packing, induction system production cost of the present invention and transportation carrying cost reduce greatly, thereby have reduced medical expense; Comprise the sacculus and the support that are complementary in the induction system of the present invention simultaneously, make the expansion of support discharge more reliable, can avoid sacculus excessive expansion removing blood stasis pipe or form dissecting aneurysm, sacculus crossing the situation that small rack can't expand fully and taking place, only support be arranged in the time of also can avoiding the emergency treatment of part medical institutions and do not have
1 TIPSS is meant through jugular vein liver inside door-vena systemica bypass.
The difficult situation of deposit sacculus.
Pre-implanting saccule at front end of the present invention can be in art the inner core of grappling induction system, in case support is accurately located, after the balloon inflation, carry The inner core of system just is difficult to displacement, because it is the object of reference of target lesion and support, the release of support also changes with regard to the change with patient posture not, So need not consider patient's breathing, cough, hiccup, the impact of the displacement factor such as speak in the support dispose procedure. Even for children, old man, dusk Fan patient etc. also can operate calmly.
Description of drawings
First kind of structure chart of the intracavity stent conveying system of Fig. 1 pre-implanting saccule at front end of the present invention, before stent delivery system discharged: sacculus was in closed condition, and support is in closure state, and support and sacculus outside are with protecting tube.
Second kind of structure chart of the intracavity stent conveying system of Fig. 2 pre-implanting saccule at front end of the present invention, during stent delivery system discharged: the protecting tube outside the system removed, and sacculus is inflation, the outer sleeve portion recession, correspondingly, support also part discharges.
The capable balloon expandable of application first sketch map of the intracavity stent conveying system of Fig. 3 pre-implanting saccule at front end of the present invention in biliary tract stenosis, narrow positions, support accurately is positioned target lesion (narrow positions), and sacculus is inflation grappling inner core.
Use second sketch map of the intracavity stent conveying system of Fig. 4 pre-implanting saccule at front end of the present invention in biliary tract stenosis, support accurately is released to target lesion (narrow positions).
Use three sketch map of the intracavity stent conveying system of Fig. 5 pre-implanting saccule at front end of the present invention in biliary tract stenosis returns and to remove sacculus to support and discharge the position, and the balloon expandable part is the support of expansion not as yet.
Among the figure: 1.a-inner core 1.b back handle 2-sacculus 3-support 4-protective casing 5-sacculus liquid injection pipe 6-sacculus or stent markers 7-trocar sheath 8-trocar sheath liquid injection pipe 9-safety lock 10-Rule adapter
The specific embodiment
1. from protective casing, take out the intracavity stent conveying system of pre-implanting saccule at front end of the present invention;
2. heparin saline washes the each several part of induction system, and it is no abnormal to check that sacculus and support have, and screws safety lock;
3. percutaneous is through chamber puncture (seldinger
2Technology or TIPSS technology) or through human body natural's pipeline (as urethra, digestive tract, air flue or lacrimal passage) introducing seal wire, introduce the intracavity stent conveying system of pre-implanting saccule at front end of the present invention along seal wire, cross narrow section according to radiography Place capsule before the art in target lesion;
4. inject the intracavity sacculus plasty of contrast agent balloon inflation row routine from the sacculus liquid injection pipe, after sacculus liquid injection pipe pumpback contrast agent to sacculus recovery is linear structure, before push away intracavity stent conveying system of the present invention and make support be positioned at the narrow of an actor's rendering of an operatic tune sacculus plasty, sacculus has then been crossed narrow positions in normal tube chamber, re-injects the inner core of contrast agent balloon inflation grappling induction system in normal tube chamber from the sacculus liquid injection pipe;
There was use widely 1 nineteen fifty-three by a kind of blood vessel or the non-vascular puncture technology of Seldinger invention in the interventional radiology field.
5. further understand the scope of target lesion from outer tube liquid injection pipe injection of contrast medium, the contrast preparation in the pumpback sacculus is wire as required, transfers The position of whole inner core discharges the position to desirable support, once again balloon inflation grappling inner core, as shown in Figure 3;
6. the safety lock of outwarding winding, rear removing supporters outer tube releasing bracket, as shown in Figure 4;
7. contrast preparation to the sacculus in the pumpback sacculus is linear recession sacculus to the expert support expansion of support, as shown in Figure 5, withdraws from of the present invention The intracavity stent conveying system of pre-implanting saccule at front end, radiography is understood target lesion and is improved situation again, again goes in case of necessity balloon expandable Art or insert an other support.
Claims (6)
1. the intracavity stent conveying system of a pre-implanting saccule at front end, it is characterized by: in this stent delivery system, sacculus and support are positioned on the same inner core, support is a self-expandable stent, sacculus can expansion cavity before support discharges in lesion region (narrow section) target lesion, can the grappling inner core in support discharges, can expandable stent after support discharges.
2. the intracavity stent conveying system of a kind of pre-implanting saccule at front end according to claim 1; it is characterized in that: go up a design sacculus (2) at the inner core (1) of support front end; this sacculus is not the inboard that is positioned at support on inner core; but separated from one another but join end to end with support (3), be positioned at long protecting tube (4).
3. according to the intracavity stent conveying system of claim 1,2 described a kind of pre-implanting saccule at front end, it is characterized in that: sacculus is positioned at the head end that pushes the releasing device inner core, there is the radiopaque labelling of heavy metal (Marker) (6) its rear and front end, and this sacculus can be designed to different length and shape according to the different parts that support uses.Support is positioned at after the sacculus, and join end to end with sacculus, support is compressed in the lacuna between inner core and the trocar sheath (7), same, also there is heavy metal labelling (6) rear and front end of support, so that accurately locate under perspective, the front end of trocar sheath is concordant with the front end of support, trocar sheath tail end side connects the liquid injection pipe (8) of a belt switch, during injecting fluid in it (normal saline or contrast agent), liquid only can be from the front end of trocar sheath unobstructed outflow, the afterbody of trocar sheath has a safety lock (9), the outer sleeve pipe of the release of support is removed with respect to returning of inner core, when discharging support, unclamp safety lock, fix inner core, return and remove trocar sheath, support can discharge fully.
4. according to the intracavity stent conveying system of claim 1,2,3 described a kind of pre-implanting saccule at front end, it is characterized in that: the liquid injection pipe (5) that the intracavity stent conveying system that presets sacculus of the present invention is positioned at inner core rear end belt switch only communicates with sacculus; Being positioned at trocar sheath rear end liquid injection pipe (8) only communicates with shelf layer (lacuna between trocar sheath and the inner core).
5. according to the intracavity stent conveying system of claim 1,2,3,4 described a kind of pre-implanting saccule at front end, it is characterized in that: in order to improve biocompatibility or hydrophilic, the intracavity stent conveying system each several part material of pre-implanting saccule at front end of the present invention can use heparin coating technology or other biotechnology; Be convenient location, the intracavity stent conveying system each several part of pre-implanting saccule at front end of the present invention can add radiopaque material as required in manufacture process.
6. according to the intracavity stent conveying system of claim 1,2,3,4,5 described a kind of pre-implanting saccule at front end, it is characterized in that: the intracavity stent conveying system of pre-implanting saccule at front end of the present invention comprises and is used for vascular system, air ducting system, gi system, biliary system, urethra system and TIPSS
1Support.In view of the particularity of coronary artery intracavity lesion, the present invention does not comprise the stent delivery system that is used for coronary angioplasty.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810029852A CN101637416A (en) | 2008-07-31 | 2008-07-31 | Intracavity stent conveying system for pre-implanting saccule at front end |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810029852A CN101637416A (en) | 2008-07-31 | 2008-07-31 | Intracavity stent conveying system for pre-implanting saccule at front end |
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| CN101637416A true CN101637416A (en) | 2010-02-03 |
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| CN200810029852A Pending CN101637416A (en) | 2008-07-31 | 2008-07-31 | Intracavity stent conveying system for pre-implanting saccule at front end |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102836022A (en) * | 2012-09-20 | 2012-12-26 | 易生科技(北京)有限公司 | Balloon capable of improving firmness of stent and forming method thereof |
| CN103479453A (en) * | 2013-10-14 | 2014-01-01 | 黄景陶 | Implantation device for precisely locating human body endoluminal stent |
| WO2014153914A1 (en) * | 2013-03-29 | 2014-10-02 | Sun Siyu | Integrated bracket imbedding device |
| CN104605966A (en) * | 2013-11-05 | 2015-05-13 | 朱霖 | Tracheal stent conveyor |
| CN105228560A (en) * | 2013-04-01 | 2016-01-06 | 泰尔茂株式会社 | Organism indwelling thing induction system |
| CN106491252A (en) * | 2016-11-25 | 2017-03-15 | 徐泽升 | Coronary ostium support Precise Position System |
| CN107184295A (en) * | 2017-07-19 | 2017-09-22 | 上海市同济医院 | Adjustable lacrimal stent |
| CN109662821A (en) * | 2019-01-15 | 2019-04-23 | 李卫校 | Bracket quickly conveys release module and bracket quickly conveys release |
| CN109846583A (en) * | 2019-03-27 | 2019-06-07 | 吴忠隐 | A kind of aortic stents window controlling system |
| CN109953780A (en) * | 2019-04-30 | 2019-07-02 | 靖海岭 | A kind of TIPS operation inlays overlay film frame with sacculus |
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| CN1311041A (en) * | 2000-02-28 | 2001-09-05 | 鲍平 | Double saccule rack device for non-exchanging subcutaneous puncture coronary artery expansion forming operation |
| US20030055480A1 (en) * | 2001-09-14 | 2003-03-20 | Fischell David R. | Recannalization device with integrated distal emboli protection |
| CN2783951Y (en) * | 2005-02-01 | 2006-05-31 | 维科医疗器械(苏州)有限公司 | Self-expanding type bracket coaxial releasing system for reclaiming protective umbrella |
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Patent Citations (4)
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| US5669924A (en) * | 1995-10-26 | 1997-09-23 | Shaknovich; Alexander | Y-shuttle stent assembly for bifurcating vessels and method of using the same |
| CN1311041A (en) * | 2000-02-28 | 2001-09-05 | 鲍平 | Double saccule rack device for non-exchanging subcutaneous puncture coronary artery expansion forming operation |
| US20030055480A1 (en) * | 2001-09-14 | 2003-03-20 | Fischell David R. | Recannalization device with integrated distal emboli protection |
| CN2783951Y (en) * | 2005-02-01 | 2006-05-31 | 维科医疗器械(苏州)有限公司 | Self-expanding type bracket coaxial releasing system for reclaiming protective umbrella |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102836022A (en) * | 2012-09-20 | 2012-12-26 | 易生科技(北京)有限公司 | Balloon capable of improving firmness of stent and forming method thereof |
| WO2014153914A1 (en) * | 2013-03-29 | 2014-10-02 | Sun Siyu | Integrated bracket imbedding device |
| CN105228560A (en) * | 2013-04-01 | 2016-01-06 | 泰尔茂株式会社 | Organism indwelling thing induction system |
| CN103479453A (en) * | 2013-10-14 | 2014-01-01 | 黄景陶 | Implantation device for precisely locating human body endoluminal stent |
| CN104605966A (en) * | 2013-11-05 | 2015-05-13 | 朱霖 | Tracheal stent conveyor |
| CN106491252A (en) * | 2016-11-25 | 2017-03-15 | 徐泽升 | Coronary ostium support Precise Position System |
| CN106491252B (en) * | 2016-11-25 | 2018-03-27 | 徐泽升 | Coronary ostium support Precise Position System |
| CN107184295A (en) * | 2017-07-19 | 2017-09-22 | 上海市同济医院 | Adjustable lacrimal stent |
| CN109662821A (en) * | 2019-01-15 | 2019-04-23 | 李卫校 | Bracket quickly conveys release module and bracket quickly conveys release |
| CN109846583A (en) * | 2019-03-27 | 2019-06-07 | 吴忠隐 | A kind of aortic stents window controlling system |
| CN109953780A (en) * | 2019-04-30 | 2019-07-02 | 靖海岭 | A kind of TIPS operation inlays overlay film frame with sacculus |
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Application publication date: 20100203 |