CN204379495U - Medical rack extractor - Google Patents
Medical rack extractor Download PDFInfo
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- CN204379495U CN204379495U CN201520001366.0U CN201520001366U CN204379495U CN 204379495 U CN204379495 U CN 204379495U CN 201520001366 U CN201520001366 U CN 201520001366U CN 204379495 U CN204379495 U CN 204379495U
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- sacculus
- medical rack
- jacket layer
- interior
- extractor
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Abstract
This utility model provides a kind of Medical rack extractor, and its structure comprises sacculus, interior pipe, electric magnet and electromagnet controller; Described sacculus is the double-decker be made up of jacket layer and interior jacket layer; Described sacculus comprises sacculus mouth, sacculus neck and sacculus head; Can inject liquid, gas or vesicle medium in the toroidal cavity between the jacket layer of sacculus and interior jacket layer by sacculus mouth, to make, sacculus hair is raw to be expanded; Described interior pipe is through the inner chamber of jacket layer interior in sacculus, and described electric magnet arranges position corresponding with sacculus head on inner pipe; In interior pipe, cross-under has wire, the intensity in the magnetic field that described electromagnet controller to be powered for electric magnet by described wire and regulating magnet produces.Medical rack extractor provided by the utility model in use, operates more convenient, reliable, time saving and energy saving compared to existing technology; And, take out in stent procedures and also can not stimulate duct wall, damage can not be caused to duct wall.
Description
Technical field
This utility model relates to a kind of extractor, specifically a kind of Medical rack extractor.
Background technology
Along with the development of society, the healthy problem having become people and be day by day concerned about, in the face of the threat that tube chamber disease is brought, Medical rack becomes indispensable device, serves vital effect.In tube chamber treatment of diseases, generally by not with or with retracting device, the Medical rack be made up of rustless steel or Nitinol etc. implants intraluminal diseased region by original body internal channel, thus effectively treatment is narrow, and releasing is blocked, shutoff fistula mouth, improves patients ' life quality.
Laying of Medical rack is implemented under endoscope or X-ray machine help with removal surgery, and there are the following problems when taking out for Medical rack: the Medical rack not with retracting device generally can not directly take out; For the Medical rack of tremulous pulse not with retracting device, take out if want, then need, by operating mode, to open otch at patient body-surface, operation is taken out; For the esophagus Medical rack not with retracting device falling into stomach, then need under the help of endoscope, utilize shearing apparatus little by little to be shredded by support, recycle biopsy forceps slices afterwards to take out, this not only adds the misery of patient, and increase the working strength of doctor.Medical rack with retracting device is generally arrange ring-type silk thread at pedestal upper end, adopting Medical rack to take out instrument (hook) during taking-up is inserted into above Medical rack, find and catch on the ring-type silk thread of pedestal upper end, then drawing outside human body, realize support to take out.This by hooking the method that the Medical rack with retracting device takes out by mode of getting in tube chamber, not only hook when getting and need repeatedly to make repeated attempts, waste time and energy; And, inevitably stimulate duct wall in the process of pull-out support, damage is to a certain degree caused to duct wall.
Utility model content
The purpose of this utility model is just to provide a kind of Medical rack extractor, and when adopting existing Medical rack taking-up instrument taking-up Medical rack to solve, operating process is wasted time and energy and easily duct wall caused to the problem of damage.
This utility model is achieved in that a kind of Medical rack extractor, comprises sacculus, interior pipe, electric magnet and electromagnet controller; Described sacculus is the double-decker be made up of jacket layer and interior jacket layer; Described sacculus comprises sacculus head, sacculus neck and sacculus mouth, can to injecting gas, liquid or vesicle medium in the toroidal cavity between the described interior jacket layer of described sacculus and described jacket layer by described sacculus mouth, the medium injected can make described sacculus head expand after arriving described sacculus head by described sacculus neck; Described interior pipe is through the inner chamber of jacket layer interior described in described sacculus, and described electric magnet is arranged on the position that described in described interior Guan Shangyu, sacculus head is corresponding; In described interior pipe, cross-under has wire, and described electromagnet controller to be powered for described electric magnet by described wire and the intensity in the magnetic field that regulates described electric magnet to produce.
Described electric magnet comprises core body to be magnetized and is wrapped in the coil on described core body to be magnetized, and described coil is electrically connected with the wire of cross-under in described interior pipe.
Described core body to be magnetized formed by single independently iron staff or by some iron hoops with gap.
Described Medical rack extractor also comprises the outer tube be socketed in outside described sacculus neck.
In described interior pipe, also cross-under has the seal wire for playing guide function to described Medical rack extractor.
The length of described sacculus head is suitable with the length of Medical rack to be got.
Described sacculus mouth connects syringe or compression pump.
Contrast agent can be injected in the toroidal cavity between the described jacket layer of described sacculus and described interior jacket layer by described sacculus mouth, expand to make described sacculus head.
Medical rack extractor provided by the utility model is matching used with specific Medical rack, with its matching used Medical rack comprise rack body with inner chamber and some magnetic lamellar bodies of being attached on rack body inwall, magnetic lamellar body can make rack body shrink under the attraction in magnetic field.Medical rack extractor comprises sacculus, interior pipe, electric magnet and electromagnet controller; Sacculus is the double-decker be made up of jacket layer and interior jacket layer, and sacculus comprises sacculus mouth, sacculus neck and sacculus head; Interior pipe is through the inner chamber of the interior jacket layer of sacculus, and electric magnet arranges position corresponding with sacculus head on inner pipe; Electromagnet controller is that electric magnet is powered by the wire of cross-under in interior pipe.
The concrete use procedure of this Medical rack extractor is: x line machine or endoscope auxiliary under, sacculus head respective channel in body of Medical rack extractor is put into Medical rack place to be got, and make sacculus head stretch into the inner chamber of Medical rack, that is: make sacculus head and Medical rack coincide; In the toroidal cavity between the jacket layer of sacculus and interior jacket layer, liquid, gas or vesicle medium (such as contrast agent) is injected from sacculus mouth afterwards by syringe or compression pump, the medium noted arrives after sacculus head through sacculus neck, sacculus head can be made to expand gradually, until sacculus head is full of the inner chamber of Medical rack; Now be energized to electric magnet by electromagnet controller, and strengthened gradually by the intensity controlling the magnetic field making electric magnet produce, the intensity in the magnetic field that electric magnet produces is being strengthened and after reaching some strength gradually, magnetic field can attract the magnetic lamellar body on the rack body inwall of Medical rack, and magnetic lamellar body can drive rack body to shrink after the captivation effect being subject to magnetic field; (when also observing the increase of sacculus head internal pressure by compression pump upward pressure is apparent) after the rack body generation slight shrinkage phenomenon that sacculus head is slightly compressed in other words can be seen until naked eyes, the magnetic field intensity now keeping electric magnet to produce is constant, and slowly outwards take out noted medium by syringe or compression pump from sacculus mouth, the draw speed of control medium and magnetic field intensity keep balancing, and at the uniform velocity, equably shrink to enable rack body; After rack body shrinks completely, sacculus and Medical rack are together taken out in body.
Medical rack extractor provided by the utility model in use, x line machine or endoscope auxiliary under, by the injection/extraction of control medium (as contrast agent) and electric magnet the intensity in magnetic field that produces, can realize the object of complete for Medical rack taking-up, this operation is more convenient, reliable, time saving and energy saving compared to existing technology; Support is occurred to be shifted and departs from the situation of origin-location, also effectively can take out support.And, adopt this utility model in the process of taking out Medical rack, because rack body shrinks under the drive of magnetic lamellar body, rack body after contraction is without the power of longitudinal (being namely parallel to rack body direction), thus make Medical rack in taking-up process to stimulate duct wall, damage can not be caused to duct wall.
Accompanying drawing explanation
Fig. 1 is the structural representation of the matching used Medical rack with this utility model.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is another structural representation of electric magnet in this utility model.
Detailed description of the invention
Medical rack extractor provided by the utility model is used in combination with the Medical rack of ad hoc structure, with this utility model with the use of the structure of Medical rack of ad hoc structure can see Fig. 1, the Medical rack of ad hoc structure comprises rack body 1 and is attached to the some magnetic lamellar bodies 2 on rack body 1 inwall.
Rack body 1 is in the network structure with inner chamber, and its material can be Nitinol or rustless steel etc., and its network structure can be formed by laser engraving or braiding.The overall overlay film of rack body 1, the film covered can be the macromolecular material that polyester, politef, polyurethane, medical silica-gel etc. have good biocompatibility.Rack body 1 specifically comprises the cylindric body 1-1 at middle part and the bulge body 1-2 at two ends, and the small-caliber end of bulge body 1-2 connects with cylindric body 1-1, and the heavy caliber end of bulge body 1-2 outwardly.The shape of bulge body 1-2 can be bell mouth shape, rim of a cup shape or bulb shape etc., and it both can fixed support effectively, prevented support landing; The stimulation of support to duct wall can be reduced again, avoid granulation tissue hyperplasia or cause pipe perforation.
Magnetic lamellar body 2 can be circular, square, oval or other special shapes etc., is circular configuration shown in figure.Magnetic lamellar body 2 can by bond or the mode such as welding is attached on the inwall of rack body 1, and its material can be rustless steel.Magnetic lamellar body 2 not carrying magnetic itself, but can be attracted by magnet (produce magnetic field), under the magnetic force sucking action of magnet, magnetic lamellar body 2 can drive rack body 1 to shrink.
Some magnetic lamellar bodies 2 can be attached on the inwall of rack body 1 equably or anisotropically; But should ensure when rack body 1 is in contraction state, magnetic lamellar body 2 adjacent one another are can not be overlapping, and support just shrinks.
Medical rack shown in Fig. 1 can be alimentary stent, trachea bracket or intravascular stent etc.
As shown in Figure 2, sacculus 3, electric magnet 4, interior pipe 5 and electromagnet controller 6 is specifically comprised with Medical rack extractor in the matching used this utility model of above-mentioned Medical rack.
Sacculus 3 is the double-decker (not shown)s be made up of jacket layer and interior jacket layer.Sacculus 3 comprises sacculus mouth 3-1, sacculus neck 3-2 and sacculus head 3-3.Sacculus mouth 3-1 can connect syringe or compression pump, liquid, gas or vesicle medium (such as contrast agent) can be injected in the toroidal cavity between the jacket layer of sacculus 3 and interior jacket layer by syringe or compression pump, the medium injected by sacculus mouth 3-1 arrives sacculus head 3-3 after sacculus neck 3-2, thus sacculus head 3-3 can be made to expand (or expansion).
Interior pipe 5 is through the inner chamber of jacket layer in sacculus 3, and one end of interior pipe 5 passes outside sacculus head 3-3, so that sacculus head 3-3 walks in passage in vivo.Electric magnet 4 is arranged on position corresponding with sacculus head 3-3 on interior pipe 5; The length of the sacculus head 3-3 corresponding with electric magnet 4 should be suitable with the length of the rack body 1 of Medical rack to be got.
The coil that electric magnet 4 comprises core body to be magnetized and is wrapped on core body to be magnetized.In Fig. 2, core body to be magnetized is single independently iron staff (in figure shown in black rectangle frame), the coil outside not shown iron staff.The iron hoop that core body to be magnetized can also have gap by several formed, as shown in Figure 3, in Fig. 3, dash area shows the structure (coil that not shown iron hoop is wound around) of iron hoop outward, the internal diameter of this iron hoop is identical with the internal diameter of interior pipe, the external diameter of iron hoop can identical with the external diameter of interior pipe (as shown in Figure 3), also can not be identical.Single independently iron staff compared by some iron hoops with gap, has good flexibility, more easily makes sacculus head 3-3 bend, and then facilitates sacculus head 3-3 current in tube chamber.The number of iron hoop and the equal adjustable of length.
In interior pipe 5, cross-under has wire, and one end of wire is electrically connected with the coil on electric magnet 4, and the other end stretches out outside interior pipe 5 and is electrically connected with electromagnet controller 6.Electromagnet controller 6 be the coil power supply on electric magnet 4 by wire on the one hand, the intensity (such as realizing by adjustment supply current size) in the magnetic field also produced for regulating magnet 4 on the other hand.The panel of electromagnet controller 6 is provided with on and off switch and magnetic field intensity adjusting knob, can by and off switch and magnetic field intensity adjusting knob easily electric magnet 4 is controlled, be regulated.
In interior pipe 5, all right cross-under seal wire, less at lumen diameter, when branch is comparatively complicated in tube chamber (as blood vessel), first can puts into seal wire, make the sacculus head 3-3 of Medical rack put into lesion locations place along seal wire afterwards under X-ray machine by the method got involved.And comparatively large for lumen diameter, tube chamber branch not too complicated situation (as esophagus), can arrange seal wire.For the situation being provided with seal wire, if interior pipe 5 internal diameter can not do too large, then the wire of cross-under in interior pipe 5 can be embedded on the inwall of interior pipe 5.
This utility model can also be socketed outward outer tube (not shown) at sacculus neck 3-2.Take out in the process of Medical rack adopting this utility model, shrink until Medical rack and be adsorbed on after on sacculus head 3-3, outer tube is promoted to sacculus head 3-3 direction, or keep outer tube motionless, sacculus head 3-3 is drawn in outer tube, enters the inner chamber of outer tube to make sacculus head 3-3 together with the Medical rack after the contraction of adsorbing thereon, follow-uply so outwards extracting in the process of support, support more can be avoided to stimulate duct wall, damage is caused to duct wall, make operation safer, reliable.
In in this utility model, pipe 5 and outer tube all can be set to flexible plastic tube.
Claims (8)
1. a Medical rack extractor, is characterized in that, comprises sacculus, interior pipe, electric magnet and electromagnet controller; Described sacculus is the double-decker be made up of jacket layer and interior jacket layer; Described sacculus comprises sacculus head, sacculus neck and sacculus mouth, can to injecting gas, liquid or vesicle medium in the toroidal cavity between the described interior jacket layer of described sacculus and described jacket layer by described sacculus mouth, the medium injected can make described sacculus head expand after arriving described sacculus head by described sacculus neck; Described interior pipe is through the inner chamber of jacket layer interior described in described sacculus, and described electric magnet is arranged on the position that described in described interior Guan Shangyu, sacculus head is corresponding; In described interior pipe, cross-under has wire, and described electromagnet controller to be powered for described electric magnet by described wire and the intensity in the magnetic field that regulates described electric magnet to produce.
2. Medical rack extractor according to claim 1, is characterized in that, described electric magnet comprises core body to be magnetized and is wrapped in the coil on described core body to be magnetized, and described coil is electrically connected with the wire of cross-under in described interior pipe.
3. Medical rack extractor according to claim 2, is characterized in that, described core body to be magnetized formed by single independently iron staff or by some iron hoops with gap.
4. Medical rack extractor according to claim 1, is characterized in that, described Medical rack extractor also comprises the outer tube be socketed in outside described sacculus neck.
5. Medical rack extractor according to claim 1, is characterized in that, in described interior pipe, also cross-under has the seal wire for playing guide function to described Medical rack extractor.
6. Medical rack extractor according to claim 1, is characterized in that, the length of described sacculus head is suitable with the length of Medical rack to be got.
7. Medical rack extractor according to claim 1, is characterized in that, described sacculus mouth connects syringe or compression pump.
8. Medical rack extractor according to claim 1, is characterized in that, can inject contrast agent by described sacculus mouth in the toroidal cavity between the described jacket layer of described sacculus and described interior jacket layer, expands to make described sacculus head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520001366.0U CN204379495U (en) | 2015-01-04 | 2015-01-04 | Medical rack extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520001366.0U CN204379495U (en) | 2015-01-04 | 2015-01-04 | Medical rack extractor |
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| Publication Number | Publication Date |
|---|---|
| CN204379495U true CN204379495U (en) | 2015-06-10 |
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|---|---|---|---|
| CN201520001366.0U Active CN204379495U (en) | 2015-01-04 | 2015-01-04 | Medical rack extractor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104546245A (en) * | 2015-01-04 | 2015-04-29 | 河北大学 | Medical stent, medical stent extractor and medical stent extracting method |
| CN108685600A (en) * | 2018-06-22 | 2018-10-23 | 上海长海医院 | Full vacation chamber controllable type bloodstream blocking device and preparation method thereof |
| CN110141409A (en) * | 2019-06-25 | 2019-08-20 | 中国医学科学院阜外医院 | Yarn guide component is used in a kind of conveying of branch type overlay film frame |
-
2015
- 2015-01-04 CN CN201520001366.0U patent/CN204379495U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104546245A (en) * | 2015-01-04 | 2015-04-29 | 河北大学 | Medical stent, medical stent extractor and medical stent extracting method |
| CN108685600A (en) * | 2018-06-22 | 2018-10-23 | 上海长海医院 | Full vacation chamber controllable type bloodstream blocking device and preparation method thereof |
| CN108685600B (en) * | 2018-06-22 | 2024-01-30 | 上海长海医院 | Full-false cavity controllable blood flow blocking device and manufacturing method thereof |
| CN110141409A (en) * | 2019-06-25 | 2019-08-20 | 中国医学科学院阜外医院 | Yarn guide component is used in a kind of conveying of branch type overlay film frame |
| CN110141409B (en) * | 2019-06-25 | 2021-08-20 | 中国医学科学院阜外医院 | Guide wire assembly for conveying forked type covered stent |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |