CN203506937U - Stent implantation device capable of accurately positioning human body lumen - Google Patents
Stent implantation device capable of accurately positioning human body lumen Download PDFInfo
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- CN203506937U CN203506937U CN201320633003.XU CN201320633003U CN203506937U CN 203506937 U CN203506937 U CN 203506937U CN 201320633003 U CN201320633003 U CN 201320633003U CN 203506937 U CN203506937 U CN 203506937U
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- stent
- outer tube
- pipe
- tube
- middle pipe
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Abstract
The utility model relates to a stent implantation device capable of accurately positioning a human body lumen. The stent implantation device comprises an outer pipe, a middle pipe, an inner pipe and a guide head, wherein handles are arranged on the outer pipe, the middle pipe and the inner pipe respectively, and the outer pipe, the middle pipe and the inner pipe are connected in a sleeved mode and can slide relative to one another. The stent implantation device is characterized in that the far section of the inner pipe wraps an anchoring balloon used for positioning and releasing a stent implanted in the anchoring balloon, the anchoring balloon is communicated with an anchoring balloon catheter attached to the inner pipe, the other end of the anchoring balloon catheter is communicated with an anchoring balloon injection connector arranged on the near section of the inner pipe, and a valve is arranged on the anchoring balloon injection connector. The stent implantation device has the advantages that the stent implantation device systematically overcomes the defect that at present, the stent releasing position is inaccurate due to the fact relative movement exists between the stent and the outer pipe of the stent implantation device, between the stent and the middle pipe of the stent implantation device and between the stent and the inner pipe of the stent implantation device, and the stent releasing process is obviously shortened, the complex operation, caused by placement position offset of the stent, of adjusting or taking out the stent again is avoided, pains of a patient are reduced, and the difficulty of stent implementation surgery is greatly lowered.
Description
Technical field
This utility model belongs to clinical treatment technique with the apparatus field, particularly relate to a kind of take support human body tube chamber, keep the inserter of the unobstructed accurate location stent for human body lumens as object of tube chamber.
Background technology
Internal support for human body lumen is good, the luminal stenosis that malignant disease causes of the organs such as treatment esophagus, stomach, tracheal bronchus, intestinal, biliary tract and prostate, the conventional treatment means of blocking.The structure that the endoscope direct vision support introduction device that the support inserting device using is at present 99220256.6 as the patent No. esophagus support placing device that is 95239801.X and the patent No. is outer tube, middle pipe, inner tube socket-connects and can relative sliding, but all lack the device for positioning and securing of support.Current inner support adopts metal net support more, when the type support pressure convergent-divergent is placed in support inserting device, can be obviously elongated, and when discharging, it can obviously shorten again.The support inserting device using in prior art is when support discharges, because outer tube, middle pipe and inner tube all produce relative motion with support, thereby make the final off-position of support can be subject to the impact of the many factors such as luminal stenosis form, tube wall smooth degree, support elastic force and appearance frictional resistance, outer tube wall smooth degree, support rate of release, especially doctor's operation skill, cause support to be difficult to accurately location and discharge, the support of being everlasting also needs after discharging to adjust or take out to reappose.So not only greatly increase operating time and patient's misery, but also can add the chance of major operation accident and complication, also limited carrying out of such technology of basic hospital simultaneously.
Utility model content
This utility model can solve current support inserting device used owing to lacking the displacement problem of fixture in support dispose procedure for the technical problem existing in solution known technology provides, and guarantees that support discharges far, the inserter of a kind of accurate location stent for human body lumens of proximal location.
The technical scheme that this utility model is taked for the technical problem existing in solution known technology is:
A kind ofly can accurately locate stent for human body lumens inserter, comprise outer tube, middle pipe, inner tube and be fixed on the seeker of inner tube far-end, at outer tube, in middle pipe and inner tube, be equipped with hands handle, described outer tube, the socket of middle pipe and inner tube also can relative sliding, described inner tube section far away holds one for locating the grappling sacculus that fills/bounce back that discharges institute's Stent Implantation, described grappling sacculus is communicated with the grappling foley's tube adhering on inner pipe, the described grappling foley's tube other end is communicated with the grappling sacculus injection interface that is arranged on the nearly section of inner tube, described grappling sacculus injection seam is provided with the valve for fill/retraction of grappling sacculus.After described grappling sacculus is full, can be fixed on narrow section with suitable position far away, play the effect of fixed support far-end; The valve of grappling sacculus injection seam, can be used for controlling the switching of grappling foley's tube, and after sacculus is full, valve-off can keep the full state of sacculus certain pressure.Middle pipe end butt mount proximal end, the two end to end being positioned at outside outer tube and inner tube.
This utility model can also adopt following technical scheme:
On middle pipe outer wall between described middle pipe handle and outer tube handle, be set with can along in pipe slide and can be locked in the release spacing ring of middle pipe optional position.While this releases spacing ring being fixed on to appropriate location according to the nearly section of a middle pipe scale, can drop back that support approaches release completely and controllable position and being prevented from still at releasing bracket process middle external tube.Now as dissatisfied in backing positions, the grappling sacculus withdraw tension inner tube of can finding time, is held between distal outer tube and seeker the nearly section of support, can hold the outer tube adjusting pole degree of depth.By the nearly section of middle pipe scale can be clearly in the distance of pipe and outer tube relative sliding, and can be with reference to the fixing release of this scale spacing ring.The length of the position that discharges spacing ring after can shrinking in outer tube according to support pressure, estimation one outer tube tentatively withdraws distance, outer tube recession to this apart from time, support approaches and discharges, but while now withdrawing inner tube seeker, still can the nearly section of clamp bracket to adjust the degree of depth.In addition in foundation, manage section scale, the at any time position of clear and definite mount proximal end far away.
The nearside of described grappling sacculus is provided with roentgenopaque rack far end developing mark.
Described outer tube and middle pipe are that transparent material is made, after described outer tube insertion human body, exposed parts and corresponding interior tube portion are shaped with respectively outer tube alignment graticule and inner tube alignment graticule, when outer tube alignment graticule aligns graticule while aliging with inner tube, full its near-end afterwards of described grappling sacculus is just positioned at distal outer tube opening part.
At the near-end of described middle pipe handle, be provided with for the fixing inner tube locking volution of inner tube on position.
Described outer axial tube is upwards shaped with the outer tube scale that shows its insertion depth, can insert support inserting device according to the remote location of preset support.
Described middle pipe handle is shaped with demonstration outer tube from treating that release conditions withdraw the nearly section of the middle pipe scale of distance with respect to middle pipe to the middle pipe outer wall between outer tube handle.
Along described middle Guan Zizhong pipe far-end, have the middle pipe section far away scale of managing insertion depth in sign, outer tube is that transparent material is made.At middle pipe, push against under the state of mount proximal end, middle pipe section far away scale indicates mount proximal end position.
On described outer wall of inner tube, be shaped with the scale that indicates its insertion depth, at outer tube, be inserted into behind precalculated position, can stretch out inner tube and grappling sacculus with reference to this scale, define the relative position that grappling sacculus stretches out outer tube.
The length of described the outer pipe, the pipe and the inner pipe should meet following condition: when rack far end is arranged in outer tube far-end and pipe far-end arrives under mount proximal end state, inner tube handle pushing and pressing are during to pipe handle or inner tube locking screw ring position, grappling sacculus just release distal outer tube opening and sacculus full after its near-end be just positioned at distal outer tube opening part.
This support inserting device can be by grappling sacculus fixed support far-end; By middle pipe end, control mount proximal end; By outer, in and inner tube scale understand at any time that support is far away, proximal location; By discharging spacing ring, limit support releasing degree, still can do position adjustment before support is discharged completely.
Advantage and the good effect that the utlity model has are: because this utility model adopts technique scheme, being this utility model is filled and is fixed on tube chamber by being paperwrapped in the grappling sacculus that fills/bounce back of inner tube end, can guarantee that support discharges remote location.Under the fixing prerequisite of far-end, by pipe in pushing and pressing and with reference in manage scale, can guarantee that support discharges proximal location.Can limit the preliminary withdrawing position of outer tube by discharging spacing ring in addition, make before support discharges completely, still can by with inner tube seeker coordinate adjusting pole position.Therefore, this utility model can not need under the condition of x-ray fluoroscopy, far away, the near-end of accurate positioning support, and can adjust position midway, accurate releasing bracket.After having avoided stentplacement position to be offset, need again to adjust and even take out the complex operations that support reapposes, alleviated patient's misery, greatly reduce the difficulty of support implantation surgery, make stent endoprosthesis easier, quick; Also can reduce the technical threshold of stent endoprosthesis simultaneously, and more extensively carry out for stent endoprosthesis the highly beneficial condition of having created.
Accompanying drawing explanation
Fig. 1 is the structural representation of utility model.(sacculus of grappling shown in figure is full state, and described support is positioned at distal outer tube)
In figure: 1, seal wire; 2, inner tube proximal openings; 3, the rigid portion of inner tube; 4, valve; 5, inner tube hands handle; 6, grappling foley's tube; 7, inner tube locking volution; 8, middle pipe hands handle; 9, discharge spacing ring; 10, discharge spacing ring lock screw; 11, the nearly section of middle pipe scale; 12, middle pipe; 13, middle pipe locking volution; 14, opacifying injection interface; 15, outer tube hands handle; 16, inner tube alignment graticule; 17, outer tube alignment graticule; 18, outer tube; 19, outer tube scale; 20, middle pipe section far away scale; 21, inner tube scale; 22, mount proximal end developing mark; 23, support; 24, rack far end developing mark; 25, grappling sacculus; 26, grappling foley's tube distal openings; 27, inner tube bending section; 28, seeker.
The specific embodiment
For further understanding utility model content of the present utility model, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
The embodiment that in this utility model, accompanying drawing is described is exemplary, only for explaining this utility model, and can not be interpreted as restriction of the present utility model.
Refer to Fig. 1, a kind ofly can accurately locate stent for human body lumens inserter, comprise outer tube 18, middle pipe 12, inner tube and be arranged on the seeker 28 of inner tube far-end, described outer tube is provided with outer tube handle 15, is provided with middle pipe handle 8 and middle pipe locking volution 13 on middle pipe; Described inner tube near-end is provided with inner tube proximal openings 2, and inner tube is positioned at the large portion in outer tube distally and can is inner tube bending section 27 with outer tube sweep, and inner tube remainder is the rigid portion 3 of inner tube, and the rigid portion of described inner tube is provided with inner tube handle 5.The socket of described the outer pipe, the pipe and the inner pipe also can relative sliding, and described inner tube section far away holds one for locating the grappling sacculus 25 that fills/bounce back that discharges institute's Stent Implantation 23.Described grappling sacculus is communicated with the grappling foley's tube distal openings 26 of adhering to grappling foley's tube 6 on inner pipe; The described grappling foley's tube other end is communicated with the grappling sacculus injection interface that is arranged on the nearly section of inner tube, described grappling sacculus injection seam be connected with for control grappling sacculus full/valve 4 that bounces back.After described grappling sacculus is full, can be fixed on pathological changes narrow section with suitable position far away, play the effect of fixed support far-end; The valve of grappling sacculus injection seam, can be used for controlling the switching of grappling foley's tube, and after sacculus is full, valve-off can keep the full state of sacculus certain pressure.
In the present embodiment, the nearside of described grappling sacculus is provided with roentgenopaque rack far end developing mark 24.
In the present embodiment, on the middle pipe outer wall between described middle pipe handle and outer tube handle, be set with can along in the pipe release spacing ring 9 of Yu Zhongguan section far away optional position that slides and can be locked, and lock with middle pipe by discharging spacing ring lock screw 10.While this releases spacing ring being fixed on to appropriate location according to the nearly section of a middle pipe scale, can drop back that support approaches release completely and controllable position and being prevented from still at releasing bracket process middle external tube.Now as dissatisfied in backing positions, the grappling sacculus withdraw tension inner tube of can finding time, is held between distal outer tube and seeker the nearly section of support, can hold the outer tube adjusting pole degree of depth.
Described middle pipe handle shows that to being shaped with on the middle pipe outer wall between outer tube handle outer tube is from treating that release conditions withdraw the nearly section of the middle pipe scale 11 of distance with respect to middle pipe, and described middle pipe section far away is shaped with the middle pipe section far away scale 20 of managing insertion depth in sign to the middle pipe outer wall between outer tube handle.By the nearly section of middle pipe scale can be clearly in the distance of pipe and outer tube relative sliding, and can be with reference to the fixing release of this scale spacing ring.The length of the position that discharges spacing ring after can shrinking in outer tube according to support pressure, estimation one outer tube tentatively withdraws distance, outer tube recession to this apart from time, support approaches and discharges, but while now withdrawing inner tube seeker, still can the nearly section of clamp bracket to adjust the degree of depth.In addition can according in pipe section far away scale, the at any time position of clear and definite mount proximal end.At middle pipe, push against under the state of mount proximal end, middle pipe section far away scale indicates mount proximal end position.
Described outer tube and middle pipe are that transparent material is made, after described outer tube inserts human body, exposed parts is shaped with outer tube alignment graticule 17, after outer tube inserts human body, the corresponding inner tube of exposed parts position is shaped with inner tube alignment graticule 16, when outer tube alignment graticule aligns graticule while aliging with inner tube, full its near-end afterwards of described grappling sacculus is just positioned at distal outer tube opening part.
At the near-end of described middle pipe handle, be provided with for the fixing inner tube locking volution 7 of inner tube on position.
Described outer axial tube is upwards shaped with the outer tube scale 19 that shows its insertion depth, can insert support inserting device according to the remote location of preset support 23.
On described outer wall of inner tube, be shaped with the inner tube scale 21 that indicates its insertion depth, at outer tube, be inserted into behind precalculated position, can stretch out inner tube and grappling sacculus with reference to this scale, so that clear and definite grappling sacculus stretches out the relative position of outer tube.
In support releasing operation, can understand the relative position that sacculus stretches out outer tube according to the align relative distance of graticule of inner and outer pipe.
Far-end at described middle pipe is shaped with roentgenopaque mount proximal end developing mark 22; Nearside at described grappling sacculus has roentgenopaque rack far end developing mark 24, for nonvisualized support under x-ray, and can be at tram releasing bracket under x-ray monitors.
Described outer tube is provided with the opacifying injection interface 14 that inner chamber is communicated with it, can inject contrast agent by this opacifying injection interface, at x-ray, monitors that descending therapentic part radiography is released to tram to guarantee support.
At the near-end of described middle pipe handle, be provided with for the fixing inner tube lock screw of inner tube, the near-end of described outer tube handle be useful on fixing in the middle pipe lock screw of pipe, can avoid maloperation to cause assembly to move improperly.
Operational approach of the present utility model is as follows:
This stent for human body lumens inserter is applicable to the support placement in the treatment of good, the luminal stenosis that malignant change causes at the positions such as esophagus, stomach, tracheal bronchus, biliary tract, small intestinal, colon, rectum, prostate.The distal esophagus cancerous stricture of only take in this patent is explained as example.
1, measurement bracket 23 release conditions and be compressed in the length under outer tube internal state first respectively.According to the position of pathological changes narrow section and length and support, discharge state length, the length after estimation support is inserted and upper and lower end insert distance.According to stent in its compressed state length, calculate and fix and discharge spacing ring 9 in appropriate location, when guaranteeing that outer tube is dropped back this position, still can be by seeker 28 with outer tube end clamp bracket to adjust the degree of depth.
2, check whether each operation of support inserting device is normal, withdraws inner tube to seeker near-end completely and takes in outer tube end completely, makes middle pipe end butt mount proximal end, rack far end butt seeker near-end, pipe locking volution 13 and inner tube locking volution 7 in locking.
3, by gastroscope, insert seal wire 1 and cross narrow section and enter the normal tube chamber of pathological changes section far away, withdraw from gastroscope and retain seal wire.Seal wire end is inserted to the most advanced and sophisticated opening of seeker and draws from inner tube proximal openings.Keep the seal wire degree of depth constant, along seal wire, insert support inserting device.
4, according to outer tube scale 19, be inserted into the support lower end position calculating before this, unclamp inner tube locking volution, before push away inner tube handle 5 to middle pipe handle 8 or inner tube locking volution, when rack far end is arranged in outer tube far-end and pipe far-end arrives under mount proximal end state, when inner tube handle pushes against to middle pipe handle or inner tube locking volution, grappling sacculus is just released distal outer tube opening, makes full rear its near-end of sacculus just be positioned at distal outer tube opening part.Now, also can be with reference to the align relative position of graticule, outer tube alignment graticule of inner tube, determine that inner tube and grappling sacculus 25 stretch out outer tube to appropriate location, by grappling sacculus injection interface, with the full grappling sacculus of the gas of suitable capacity, filling degree with grappling sacculus be fixed on tube chamber, the unlikely grappling sacculus displacement of normal operating dynamics and not the reason overdistension damage internal organs of being treated be advisable.Suitably dynamics moves forward and backward inner tube handle to verify its fixation degree, and then valve-off is to keep grappling sacculus full.
5, unclamp middle pipe locking volution, two handss grip respectively outer tube handle, middle pipe handle, continue in guaranteeing, to manage end, support, grappling sacculus butt successively to support middle pipe handle before suitable dynamics, and now middle pipe section far away scale shows the mount proximal end degree of depth.Drop back outer tube handle to discharging spacing ring place again, due to support now only remaining near-end small part stay in outer tube, now in the degree of depth that indicates of pipe section far away scale approach very much support and discharge the after-poppet near-end degree of depth completely.If it is satisfied that this places the degree of depth, can unclamp and discharge spacing ring continuation recession outer tube, support is discharged completely; So the degree of depth is undesirable, can keep outer tube invariant position, and the grappling sacculus withdraw tension inner tube of finding time, is held between distal outer tube and seeker the nearly section of support, then holds the outer tube adjusting pole degree of depth.Adjust after satisfaction, unclamp and discharge spacing ring continuation recession outer tube, completely releasing bracket.
Under at x-ray, operate, also can reference frame near-end developing mark 22, rack far end developing mark 24, or inject contrast agent from opacifying injection interface, to observe local tube chamber situation and support, inserter relative position, assist support to insert operation.
Claims (9)
1. can accurately locate a stent for human body lumens inserter, comprise the seeker of outer tube, middle pipe, inner tube and inner tube far-end, in outer tube, middle pipe and inner tube, be equipped with handle, the socket of described the outer pipe, the pipe and the inner pipe also can relative sliding, it is characterized in that; Described inner tube section far away holds one for locating the grappling sacculus that fills/bounce back that discharges institute's Stent Implantation, described grappling sacculus is communicated with the grappling foley's tube adhering on inner pipe, the described grappling foley's tube other end is communicated with the grappling sacculus injection interface that is arranged on the nearly section of inner tube, described grappling sacculus injection seam be provided with for control grappling sacculus full/valve that bounces back.
2. according to claim 1ly a kind ofly can accurately locate stent for human body lumens inserter, it is characterized in that: on the middle pipe outer wall between described middle pipe handle and outer tube handle, be set with can along in pipe slide and can the be locked release spacing ring of Yu Zhongguan section far away optional position.
3. according to claim 1ly a kind ofly can accurately locate stent for human body lumens inserter, it is characterized in that: the nearside of described grappling sacculus is provided with roentgenopaque rack far end developing mark.
4. according to claim 1ly a kind ofly can accurately locate stent for human body lumens inserter, it is characterized in that: described outer tube and middle pipe are that transparent material is made, after described outer tube insertion human body, exposed parts and corresponding interior tube portion are shaped with respectively outer tube alignment graticule and inner tube alignment graticule, when outer tube alignment graticule aligns graticule while aliging with inner tube, full its near-end afterwards of described grappling sacculus is just positioned at distal outer tube opening part.
5. according to claim 1ly a kind ofly can accurately locate stent for human body lumens inserter, it is characterized in that: at the near-end of described middle pipe handle, be provided with for fixing inner tube and insert the inner tube locking volution of managing position.
6. according to claim 1ly a kind ofly can accurately locate stent for human body lumens inserter, it is characterized in that: described outer axial tube is upwards shaped with the outer tube scale that shows its insertion depth.
7. according to claim 1ly a kind ofly can accurately locate stent for human body lumens inserter, it is characterized in that: described middle pipe handle shows that to being shaped with on the middle pipe outer wall between outer tube handle outer tube is from treating that release conditions withdraw the nearly section of the middle pipe scale of distance with respect to middle pipe.
8. according to claim 1ly a kind ofly can accurately locate stent for human body lumens inserter, it is characterized in that: described outer tube and middle pipe are that transparent material is made, and are shaped with the scale that indicates its insertion depth on described outer wall of inner tube.
9. according to claim 1ly a kind ofly can accurately locate stent for human body lumens inserter, it is characterized in that: the length of described outer tube, middle pipe, inner tube should meet and is arranged in outer tube far-end and pipe far-end arrives under mount proximal end state when rack far end, the pushing and pressing of inner tube handle during to middle pipe handle or inner tube locking screw ring position grappling sacculus just release distal outer tube opening and sacculus full after its near-end be just positioned at the requirement of distal outer tube opening part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320633003.XU CN203506937U (en) | 2013-10-14 | 2013-10-14 | Stent implantation device capable of accurately positioning human body lumen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320633003.XU CN203506937U (en) | 2013-10-14 | 2013-10-14 | Stent implantation device capable of accurately positioning human body lumen |
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| Publication Number | Publication Date |
|---|---|
| CN203506937U true CN203506937U (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320633003.XU Expired - Fee Related CN203506937U (en) | 2013-10-14 | 2013-10-14 | Stent implantation device capable of accurately positioning human body lumen |
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| CN (1) | CN203506937U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103479453A (en) * | 2013-10-14 | 2014-01-01 | 黄景陶 | Implantation device for precisely locating human body endoluminal stent |
-
2013
- 2013-10-14 CN CN201320633003.XU patent/CN203506937U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103479453A (en) * | 2013-10-14 | 2014-01-01 | 黄景陶 | Implantation device for precisely locating human body endoluminal stent |
| WO2015055070A1 (en) * | 2013-10-14 | 2015-04-23 | 黄景陶 | Placement device capable of accurately positioning human body endoluminal stent |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20181014 |
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| CF01 | Termination of patent right due to non-payment of annual fee |