CN104257444A - Human body endoluminal stent implanting device capable of being recycled midway - Google Patents
Human body endoluminal stent implanting device capable of being recycled midway Download PDFInfo
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- CN104257444A CN104257444A CN201410553747.XA CN201410553747A CN104257444A CN 104257444 A CN104257444 A CN 104257444A CN 201410553747 A CN201410553747 A CN 201410553747A CN 104257444 A CN104257444 A CN 104257444A
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Abstract
The invention relates to a human body endoluminal stent implanting device capable of being recycled midway. The human body endoluminal stent implanting device capable of being recycled midway comprises an outer tube, a middle tube, an inner tube and a guiding head and a stent which are arranged at a far end of the inner tube; handles are arranged on the outer rube, the middle tube and the inner tube; the outer tube, the middle tube and the inner tube can be in cup joint and can slide relatively. The human body endoluminal stent implanting device capable of being recycled midway is characterized in that an insurance wire which drags a stent near end to be fixed at a middle tube far end is arranged inside the middle tube; the middle tube handle is provided with a wire outlet hole which is communicated with an inner chamber of the middle tube; the insurance wire penetrates a stent near end mesh and is folded in two portions, runs through the interior of the middle tube and the exterior of the inner tube along the axial direction of the middle tube and penetrates out from a wire outlet hole of the middle tube handle. The human body endoluminal stent implanting device capable of being recycled midway has the advantages of allowing withdrawing into the implanting device to be released again before the stent is not completely released; avoiding complex operation of adjusting or taking out the stent to release the stent again caused by offset of the stent release position, relieving patient pains and substantially reducing the difficulty of stent placement operations; enabling the stent implantation to be simple and rapid; creating advantage conditions for wide development of the stent implantation.
Description
Technical field
The invention belongs to clinical treatment technique with the apparatus field, particularly relate to a kind of by support human body tube chamber, keep tube chamber unobstructed for the purpose of the stent for human body lumens inserter that can halfway reclaim.
Background technology
Internal support for human body lumen is the luminal stenosis that good, the malignant disease of the organs such as clinical treatment esophagus, stomach, tracheal bronchus, intestinal, biliary tract, prostate and blood vessel causes, the conventional treatment means of blocking.The support inserting device of prior art if the patent No. is " esophagus support placing device " of 95239801.X and the patent No. be 99220256.6 " endoscope direct vision support introduction device " all adopt outer tube, middle pipe, interior pipe to socket-connect and can the structure of relative sliding, but support is difficult to adjustment position once namely part release be fixed on tube chamber, more support can not be regained inserter tube chamber and again discharge.Above-mentioned inserter, when clinical operation operates, causes support to be difficult to accurately locate release, and also needs adjustment or take out again to discharge after support release of being everlasting.So not only substantially prolongs operating time and add the misery of patient, but also the risk of major operation accident and complication can be added, also limit carrying out of such technology of basic hospital simultaneously.
Summary of the invention
The present invention provides a kind of stent for human body lumens inserter that can reclaim halfway for solving in known technology the technical problem that exists.
Adopt this support inserting device can solve current support inserting device used once part release, namely support is fixed on tube chamber and is difficult to adjust position, and support cannot be regained the problem that inserter tube chamber discharges again again, can guarantee that support is being discharged into a certain degree by fuze, still can regain inserter tube chamber, adjusted position postpone discharges again, needs again to adjust the complex operations of even taking out support and again discharging after avoiding off-position skew.
The technical scheme that the present invention takes for the technical problem existed in solution known technology is:
The stent for human body lumens inserter that can halfway reclaim, comprise outer tube, middle pipe, interior pipe and be positioned at seeker and the support of pipe far-end, described the outer pipe, the pipe and the inner pipe is equipped with handle, and the socket of described the outer pipe, the pipe and the inner pipe also can relative sliding, it is characterized in that; Fuze mount proximal end traction being fixed on middle pipe far-end is provided with in described middle pipe, described middle pipe handle is provided with the wire hole be communicated with middle tube cavity, described fuze is passed by mount proximal end mesh and in doubling edge, pipe axially navigates within middle pipe, outside interior pipe, and therefrom the wire hole of pipe handle passes.
The present invention can also adopt following technical scheme:
Described middle pipe handle wire hole proximal position place is provided with stop button jack, and at stop button jack, place is provided with stop button, and described fuze one end is connected with stop button, and the other end is free-end; Described fuze two ends are parallel proximally strains, insert with some tension and be fixed in stop button jack.
Described fuze adopts to be had compared with high-tensile and the less material of coefficient of friction makes.
Mount proximal end traction is fixed on middle pipe far-end by fuze by this support inserting device, can regain in outer tube by front pushing away outer tube by support before support discharges completely on the one hand, and adjustment position discharges again; On the other hand for sacculus locating support inserter, when pushing away before can preventing interior pipe sacculus, support is taken out of.Limit support releasing degree by release spacing ring, limit support and be tentatively released in callable scope.
The advantage that the present invention has and good effect are: because the present invention adopts technique scheme, when clinical operation, this support inserting device, by the effect of fuze, makes support before discharging completely, still support can be regained in outer tube, thus adjustment position discharges again.In addition, during for use sacculus locating support inserter, when pushing away before can preventing interior pipe sacculus, support is taken out of, ensure that support correctly discharges.Therefore, the invention solves the irreversible problem of existing support inserting device dispose procedure, in dispose procedure, as found, backing positions is unsatisfied with, and can regain in inserter by fuze by support, adjusted position postpone is accurate releasing bracket again.Need again to adjust the complex operations of even taking out support and again discharging after avoiding off-position skew, alleviate the misery of patient, considerably reduce the difficulty of support implantation surgery, make stent endoprosthesis easier, quick; Also can reduce the technical threshold of stent endoprosthesis simultaneously, and create highly beneficial condition for more extensively carrying out of stent endoprosthesis.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is the middle pipe handle partial structurtes enlarged drawing in Fig. 1;
Fig. 3 is mount proximal end in Fig. 1 and fuze invayination partial enlarged drawing;
Fig. 4 is the support inserting device structural representation of the present invention without anchoring balloon;
Fig. 5 is the middle pipe handle partial structurtes enlarged drawing in Fig. 4;
Fig. 6 is mount proximal end in Fig. 4 and fuze invayination partial enlarged drawing.
In figure: 1, seal wire; 2, interior pipe proximal openings; 3, interior pipe; 4, valve; 5, interior pipe hands handle; 6, anchoring balloon conduit; 7, stop button; 8, stop button jack; Pipe hands handle in 9; 10, wire hole; 11, spacing ring is discharged; 12, spacing ring lock screw is discharged; 13, the nearly section scale of middle pipe; 14, middle pipe; 15, fuze; 16, middle pipe locking nut; 17, opacifying injection interface; 18, outer tube hands handle; 19, interior pipe alignment graticule; 20, outer tube alignment graticule; 21, outer tube; 22, outer tube scale; 23, middle pipe section scale far away; 24, interior pipe scale; 25, mount proximal end developing mark; 26, support; 27, rack far end developing mark; 28, anchoring balloon; 29, anchoring balloon distal end of catheter opening; 30, seeker.
Detailed description of the invention
For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1-Fig. 3, the stent for human body lumens inserter that can reclaim halfway, the fuze 15 comprising outer tube 21, middle pipe 14, interior pipe 3 and be arranged on the seeker 30 of interior pipe far-end, anchoring balloon 28 and navigate within middle pipe, outside interior pipe.
Described outer tube is provided with outer tube handle 18, and described outer tube handle proximate end is provided with middle pipe locking volution 16, pipe handle 9 during middle pipe is provided with; Described interior pipe near-end is provided with interior pipe proximal openings 2, is provided with interior pipe handle 5 at interior pipe near-end.The socket of described the outer pipe, the pipe and the inner pipe also can relative sliding, and described interior pipe section far away holds one for locating the anchoring balloon 28 filling/bounce back of release institute Stent Implantation 26.Described anchoring balloon is communicated with the anchoring balloon distal end of catheter opening 29 of attachment anchoring balloon conduit 6 on inner pipe; Described anchoring balloon conduit 6 other end injects orifice with the anchoring balloon being arranged on the nearly section of interior pipe, and described anchoring balloon injection seam is connected with the valve 4 controlling anchoring balloon and fill/bounce back.Pathological changes narrow section can be fixed on suitable position far away after described anchoring balloon is full, play the effect of fixed support far-end; The valve 4 of anchoring balloon injection seam can be used for the opening and closing controlling anchoring balloon conduit, and sacculus fills the expanded state that rear valve-off can keep sacculus certain pressure.
The fuze 15 mount proximal end traction being fixed on middle pipe far-end is provided with in described middle pipe, described middle pipe handle is provided with the wire hole 10 be communicated with middle tube cavity, described fuze is passed by support 26 near-end mesh and in doubling edge, pipe axially navigates within outside interior pipe in middle pipe, and therefrom the wire hole of pipe handle passes.
In the present embodiment, described middle pipe handle wire hole proximal position place is provided with stop button jack 8, and at stop button jack, place is provided with stop button 7, and described fuze one end is connected with stop button, and the other end is free-end; Described fuze two ends are parallel proximally strains, insert with some tension and be fixed in stop button jack.
In the present embodiment, described fuze adopts to be had compared with high-tensile and the less material of coefficient of friction makes.
In the present embodiment, the nearside of described anchoring balloon is provided with roentgenopaque rack far end developing mark 27.
In the present embodiment, between described middle pipe handle and outer tube handle, pipe outer wall is set with can along in pipe slide and can be locked in the release spacing ring 11 of middle pipe optional position, and to be locked with middle pipe by release spacing ring lock screw 12.When this release spacing ring 11 being fixed on appropriate location according to the nearly section scale 13 of middle pipe, can the recession of releasing bracket process middle external tube 21 to support 26 close to discharging completely still controllable position and being prevented from.Now as backing positions is unsatisfied with, can before push away outer tube 21 and withdraw middle pipe 14 a little and support is regained in outer tube 21, adjustment position discharges again.
In between described middle pipe handle 9 to outer tube handle 18, pipe outer wall is shaped with display outer tube to withdraw in distance relative to middle pipe from state to be released and manage nearly section scale 13, between described middle pipe far-end to outer tube handle 18, pipe outer wall is shaped with in sign and in pipe insertion depth, manages section scale 23 far away.Clearly middlely can manage the distance with outer tube relative sliding by the nearly section scale 13 of middle pipe, and can refer to this scale fixing release spacing ring 11.The position of release spacing ring 11 according to the length of support, can estimate that an outer tube 21 tentatively withdraws distance, and when outer tube 21 is dropped back to this distance, support close to release, but still is taken in outer tube 21 by front pushing away outer tube 21 by support 26.Fuze 15 by mount proximal end traction be fixed in pipe 14 far-end state under, namely middle pipe section scale 23 far away indicates mount proximal end position.Therefore according in manage section scale 23 far away, can the position of clear and definite mount proximal end at any time.
Described outer tube 21 and middle pipe 14 are that soft transparent material makes, after described outer tube inserts human body, exposed parts is shaped with outer tube alignment graticule 20, after outer tube inserts human body, in exposed parts correspondence, pipe position is shaped with interior pipe alignment graticule 19, when outer tube alignment graticule 20 to align with interior pipe graticule 19 align time, full its near-end afterwards of described anchoring balloon 28 is just positioned at distal outer tube opening part.
Described outer axial tube is upwards shaped with the outer tube scale 22 of its insertion depth of display, can insert support inserting device according to the remote location of preset support 26.
Described outer wall of inner tube is shaped with the interior pipe scale 24 indicating its insertion depth, after outer tube is inserted into precalculated position, can refer to this scale and stretch out interior pipe and anchoring balloon, so that clear and definite anchoring balloon stretches out the relative position of outer tube.
Sacculus can be understood stretch out the relative distance of outer tube according to the align relative distance of graticule of inner and outer pipe in support releasing operation.
Operational approach of the present invention is as follows:
To be provided with the support inserting device of anchoring balloon, the support placement in the treatment of the luminal stenosis that the benign and malignant lesions that this stent for human body lumens inserter is applicable to the positions such as esophagus, stomach, tracheal bronchus, biliary tract, small intestinal, colon, rectum, prostate and blood vessel causes, to be only narrowly explained so that a distal esophagus is carcinous at this.
1, measurement bracket 26 release conditions and the length under compressing state within the outer tube first respectively.According to the position of pathological changes narrow section and length and support release state length, estimation support insert after length and upper and lower end insert distance.According to stent length, calculate and fix release spacing ring 11 in appropriate location, with guarantee outer tube drop back this position time, still by front pushing away outer tube, support being regained in outer tube, again discharging with percentage regulation.
2, check that whether support inserting device each portion operation is normal, withdraw interior pipe 3 to seeker 30 near-end completely and take in outer tube end completely, make middle pipe end abut mount proximal end, rack far end abuts seeker near-end, pipe locking volution 16 in locking.
3, cross narrow section by gastroscope insertion seal wire 1 and enter pathological changes section normal lumina far away, withdraw from gastroscope and retain seal wire.Seal wire end is inserted seeker tip inlets and draws from interior pipe proximal openings.Keep the seal wire degree of depth constant, insert support inserting device along seal wire.
4, be inserted into the pedestal lower end position calculated before this according to outer tube scale 22, frontly push away interior pipe handle 5 to middle pipe handle 9, under rack far end is arranged in outer tube far-end and pipe far-end arrives at mount proximal end state,
When interior pipe handle pushing and pressing are to middle pipe handle, anchoring balloon 28 just releases distal outer tube opening, and after making sacculus full, its near-end is just positioned at distal outer tube opening part.Now, also can refer to the relative position of interior pipe alignment graticule 19, outer tube alignment graticule 20, after determining that interior pipe 3 and anchoring balloon 28 stretch out outer tube to appropriate location, interface is injected by anchoring balloon, fill anchoring balloon with the gas of suitable capacity, filling degree is fixed on tube chamber with anchoring balloon, the unlikely anchoring balloon of normal operating dynamics is shifted and reason internal organs that overstretch injury is treated are not as the criterion.Suitably dynamics can move forward and backward interior pipe handle to verify its fixation degree, then valve-off 4 fills to keep anchoring balloon.
5, now namely middle pipe section scale 23 far away shows mount proximal end position; Namely interior pipe scale shows rack far end position, and these 2 scales indicate support end positions all the time in support dispose procedure.Unclamp middle pipe locking volution 16, two hands and hold outer tube handle, middle pipe handle respectively, recession outer tube, and continue to push away middle pipe handle before suitable dynamics, to ensure that, in dispose procedure when support shortens to some extent, rack far end still can abut with sacculus, ensure that calibration position is accurate.Continue recession outer tube handle to release spacing ring place, due to now support only remaining near-end small part stay in outer tube, the degree of depth that now, pipe section scale far away indicates closely support discharges the after-poppet near-end degree of depth completely.If this release depth is satisfied, can pull up stop button 7 and continue slowly pull-out fuze 15, the now binding of mount proximal end and middle pipe far-end departs from, and unclamps release spacing ring and continues recession outer tube, support is discharged completely; Release depth like this is undesirable, can before push away outer tube and slightly withdraw middle pipe support is regained in outer tube.After adjustment position is satisfied, releasing bracket again.
As operated under x-ray, also can reference frame near-end developing mark 25, rack far end developing mark 27, or inject contrast agent from opacifying injection interface 17, to observe local tube chamber situation and support, inserter relative position, assist support to insert operation.
Refer to Fig. 4-Fig. 6, the stent for human body lumens inserter that can halfway reclaim, for the inserter without anchoring balloon, comprise outer tube 21, middle pipe 14, interior pipe 3 and be arranged on the seeker 30 of interior pipe far-end, be provided with the fuze 15 traction of support 26 near-end being fixed on middle pipe far-end in described middle pipe 14, described middle pipe handle 9 is provided with the wire hole 10 be communicated with middle tube cavity.Described fuze is passed by support 26 near-end mesh and in doubling edge, pipe axially navigates within outside interior pipe in middle pipe, and therefrom the wire hole of pipe handle passes.
In the present embodiment, described middle pipe handle wire hole proximal position place is provided with stop button jack 8, and at stop button jack, place is provided with stop button 7, and described fuze one end is connected with stop button, and the other end is free-end; Described fuze two ends are parallel proximally strains, insert with some tension and be fixed in stop button jack.
Mount proximal end tractive can be fixed on middle pipe far-end by described fuze, when support does not discharge completely, is regained in outer tube by support by front pushing away outer tube.During releasing bracket, when outer tube withdraws release spacing ring, manage section scale 23 far away in observation and judge that whether the proximal location that support discharges is correct.As position is correct, can extract stop button 7, slowly pull-out fuze 15, then continues complete releasing bracket; As off-position is unsatisfied with, can before push away outer tube handle 18 and slightly withdraw middle pipe handle 9 support is regained in outer tube, reorientate release.
In the present embodiment, described fuze adopts to be had compared with high-tensile and the less material of coefficient of friction makes.
In the present embodiment, between described middle pipe handle and outer tube handle, pipe outer wall is set with can along in pipe slide and can be locked in the release spacing ring 11 of middle pipe optional position, and to be locked with middle pipe by release spacing ring lock screw 12.When this release spacing ring 11 being fixed on appropriate location according to the nearly section scale 13 of middle pipe, can the recession of releasing bracket process middle external tube 21 to support 26 close to discharging completely still controllable position and being prevented from.Now as backing positions is unsatisfied with, can before push away outer tube 21 and withdraw middle pipe 14 a little and support is regained in outer tube 21, adjustment position discharges again.
In between described middle pipe handle 9 to outer tube handle 18, pipe outer wall is shaped with display outer tube to withdraw in distance relative to middle pipe from state to be released and manage nearly section scale 13, between described middle pipe far-end to outer tube handle 18, pipe outer wall is shaped with in sign and in pipe insertion depth, manages section scale 23 far away.Clearly middlely can manage the distance with outer tube relative sliding by the nearly section scale 13 of middle pipe, and can refer to this scale fixing release spacing ring 11.The position of release spacing ring 11 according to the length of support, can estimate that an outer tube 21 tentatively withdraws distance, and when outer tube 21 is dropped back to this distance, support close to release, but still is taken in outer tube 21 by front pushing away outer tube 21 by support 26.Fuze 15 by mount proximal end traction be fixed in pipe 14 far-end state under, namely middle pipe section scale 23 far away indicates mount proximal end position.Therefore according in manage section scale 23 far away, can the position of clear and definite mount proximal end at any time.
Described outer tube 21 is that soft transparent material makes, and middle pipe 14 is flexible material making.
Described outer axial tube is upwards shaped with the outer tube scale 22 of its insertion depth of display, can insert support inserting device according to the remote location of preset support 26.
Roentgenopaque mount proximal end developing mark 25 is shaped with at the far-end of described middle pipe, for support nonvisualized under x-ray, can at tram releasing bracket under x-ray monitors.
Described outer tube is provided with the opacifying injection interface 17 of inner space with it, injects contrast agent, monitor that descending therapentic part radiography is to guarantee that support is released to tram at x-ray by this opacifying injection interface.
Be provided with pipe locking nut 16 in for fixing middle pipe at the near-end of described outer tube handle, maloperation can be avoided to cause assembly to move improperly.
Operational approach of the present invention is as follows:
For the support inserting device without anchoring balloon,
The support placement in the treatment of the luminal stenosis that the benign and malignant lesions that this stent for human body lumens inserter is applicable to the positions such as esophagus, stomach, tracheal bronchus, biliary tract, small intestinal, colon, rectum, prostate and blood vessel causes, to be only narrowly explained so that a distal esophagus is carcinous at this.
1, measurement bracket 26 release conditions and the length under compressing state within the outer tube first respectively.According to the position of pathological changes narrow section and length and support release state length, estimation support insert after length and upper and lower end insert distance.Calculate according to stent length and fix release spacing ring 11 in appropriate location, with guarantee outer tube drop back this position time, still by front pushing away outer tube, support being regained in outer tube, again discharging with percentage regulation.
2, check that whether support inserting device each portion operation is normal, withdraw interior pipe completely and take in outer tube end completely to seeker near-end, at this moment, pipe end abuts mount proximal end, and rack far end abuts seeker near-end, pipe locking volution 16 in locking.
3, cross narrow section by gastroscope insertion seal wire 1 and enter pathological changes section normal lumina far away, withdraw from gastroscope and retain seal wire.Seal wire end is inserted seeker tip inlets and draws from interior pipe proximal openings.Keep the seal wire degree of depth constant, insert support inserting device along seal wire.
4, the pedestal lower end position calculated before this is inserted into according to outer tube scale 22, unclamp middle pipe locking nut 16, two handss grip outer tube handle, middle pipe handle respectively, support middle pipe handle before appropriateness and drop back outer tube handle to release spacing ring place simultaneously, due to now support only remaining near-end small part stay in outer tube, the degree of depth that now, pipe section scale far away indicates closely support discharges the after-poppet near-end degree of depth completely.If this release depth is satisfied, can pull up stop button 7 and continue slowly pull-out fuze 15, the now binding of mount proximal end and middle pipe far-end departs from, and unclamps release spacing ring and continues recession outer tube, support is discharged completely; Release depth like this is undesirable, can before push away outer tube and slightly withdraw middle pipe support is regained in outer tube.After adjustment position is satisfied, releasing bracket again.
As operated under x-ray, also can reference frame near-end developing mark 25, or inject contrast agent from opacifying injection interface 17, to observe local tube chamber situation and support, inserter relative position, assist support to insert operation.
The embodiment that accompanying drawing of the present invention describes is exemplary, only for explaining the present invention, and can not be interpreted as limitation of the present invention.
Claims (3)
1. the stent for human body lumens inserter that can halfway reclaim, comprise outer tube, middle pipe, interior pipe and be positioned at seeker and the support of pipe far-end, described the outer pipe, the pipe and the inner pipe is equipped with handle, and the socket of described the outer pipe, the pipe and the inner pipe also can relative sliding, it is characterized in that; Fuze mount proximal end traction being fixed on middle pipe far-end is provided with in described middle pipe, described middle pipe handle is provided with the wire hole be communicated with middle tube cavity, described fuze is passed by mount proximal end mesh and in doubling edge, pipe axially navigates within middle pipe, outside interior pipe, and therefrom the wire hole of pipe handle passes.
2. the stent for human body lumens inserter that can halfway reclaim according to claim 1, it is characterized in that: described middle pipe handle wire hole proximal position place is provided with stop button jack, at stop button jack, place is provided with stop button, and described fuze one end is connected with stop button, and the other end is free-end; Described fuze two ends are parallel proximally strains, insert with some tension and be fixed in stop button jack.
3. the stent for human body lumens inserter that can halfway reclaim according to claim 1, is characterized in that: described fuze adopts to be had compared with high-tensile and the less material of coefficient of friction makes.
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| CN201410553747.XA CN104257444A (en) | 2014-10-17 | 2014-10-17 | Human body endoluminal stent implanting device capable of being recycled midway |
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| CN201410553747.XA CN104257444A (en) | 2014-10-17 | 2014-10-17 | Human body endoluminal stent implanting device capable of being recycled midway |
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| CN201410553747.XA Pending CN104257444A (en) | 2014-10-17 | 2014-10-17 | Human body endoluminal stent implanting device capable of being recycled midway |
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| CN107080609A (en) * | 2017-05-31 | 2017-08-22 | 苏州大学 | A kind of gatherer and its application method suitable for intestinal stent |
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Application publication date: 20150107 |