CN112274306B - Ready-package is used for biliary tract drainage support of treatment - Google Patents
Ready-package is used for biliary tract drainage support of treatment Download PDFInfo
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- CN112274306B CN112274306B CN202011068361.1A CN202011068361A CN112274306B CN 112274306 B CN112274306 B CN 112274306B CN 202011068361 A CN202011068361 A CN 202011068361A CN 112274306 B CN112274306 B CN 112274306B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M29/00—Dilators with or without means for introducing media, e.g. remedies
- A61M29/02—Dilators made of swellable material
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Abstract
The invention discloses a fast-assembly biliary tract internal drainage support for treatment, which belongs to the technical field of medical instruments and comprises a fast-assembly mechanism, wherein a wire guide mechanism is sleeved on one side of the fast-assembly mechanism, an outer support mechanism is fixedly connected to one side of the wire guide mechanism, an inner support mechanism is fixedly connected to the inner cavity of the outer support mechanism, the outer support mechanism comprises an outer support frame, the outer support frame is formed by winding and weaving a first memory metal wire, a second memory metal wire and an electric heating metal wire, the inner cavity of the outer support frame is in transmission connection with the inner support mechanism, and a counterweight pad is fixedly connected to one side of the outer support frame. According to the invention, by arranging the inner air bag, the inner air bag can be rapidly assembled and positioned by matching with the inner connecting cable and the air valve, and postoperative suturing is not required after the memory metal of the outer support frame is heated and expanded for limiting and supporting, so that the operation time is obviously shortened, postoperative risks caused by long operation time are reduced, and the operation safety is improved.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a quick-assembly biliary tract internal drainage stent for treatment.
Background
According to the structural characteristics of the endoscope, the endoscope can be divided into a rigid hard endoscope and a soft fiber endoscope. According to the disciplinary classification, there are digestive endoscopy, thoracoscope, laparoscope, respiratory endoscopy, cystoscope, pyeloscope, hysteroscope, arthroscope, ventriculoscope, nasopharyngoscope, angioscope, and cardioscope, etc. Bile duct stenosis is scar constriction of a bile duct cavity caused by injury of a bile duct and recurrent cholangitis or congenital, when an endoscope shell is used for treatment, a biliary tract drainage support is often required to be used as a surgical instrument in endoscopic surgery, and the biliary tract drainage support is used for relieving the condition of a malignant biliary obstruction patient by placing a support on a biliary tract.
Among the prior art biliary tract drainage support is many to ensure to place back supporting effect through memory metal, nevertheless after malignant biliary tract obstruction patient places, the tumour gets into between the memory metal net easily, this just leads to drainage support need separate the tumour when taking out, lead to tumour surface to break easily, influence and take out back recovery effect, and current biliary tract drainage support only supports through memory metal self material performance, self stability ability can not enough, lack effectual location placing means simultaneously, wait for memory metal recovery time longer, lead to placing the operation time overlength, influence patient postoperative rehabilitation, can not be fine satisfy the operation needs.
Disclosure of Invention
The invention aims to: the biliary tract internal drainage stent is used for solving the problems that a tumor easily enters between memory metal grids, the tumor needs to be separated when the drainage stent is taken out, the surface of the tumor is easily cracked, the existing biliary tract drainage stent is only supported by the performance of the memory metal material, the self-stability performance is insufficient, an effective positioning and placing means is lacked, and the recovery time of the memory metal is long.
In order to achieve the purpose, the invention adopts the following technical scheme:
a fast-assembly biliary tract internal drainage support for treatment comprises a fast-assembly mechanism, wherein a wire guide mechanism is sleeved on one side of the fast-assembly mechanism, an outer support mechanism is fixedly connected on one side of the wire guide mechanism, and an inner support mechanism is fixedly connected in an inner cavity of the outer support mechanism;
the outer support mechanism comprises an outer support frame, the outer support frame is formed by winding and weaving a first memory metal wire, a second memory metal wire and an electric heating metal wire, an inner support mechanism is connected to the inner cavity of the outer support frame in a transmission mode, a counterweight pad is fixedly connected to one side of the outer support frame, and the other side of the outer support frame is fixedly connected with one side of the fast-assembling mechanism through a connecting air bag.
As a further description of the above technical solution:
the outer supporting frame is in a hexagon socket honeycomb shape.
As a further description of the above technical solution:
fast-assembling mechanism includes spacing seat, the card hole has all been seted up to spacing seat both sides, logical groove has all been seted up to card hole both sides, logical inslot chamber one side has been seted up the spacing groove, the tongue has all been seted up at spacing seat one side both ends, the tongue internal clamping has the lug, and fixedly connected with connection pad between the lug of both sides, connection pad has seted up spacing circle with leading to groove corresponding position, first through-hole has been seted up to connection pad one side, gasbag in spacing seat inner chamber fixedly connected with, the internal connection inside groove has been seted up to internal gasbag an organic whole, internal gasbag outer wall intercommunication has a plurality of support pipes, support pipe inlays and locates spacing seat inner chamber one side, and support pipe outer wall cover is equipped with seal ring, seal ring inlays and locates spacing seat inner chamber one side and laminates mutually.
As a further description of the above technical solution:
the seal wire mechanism includes the outer tube, the outer tube passes the spacing collar and extends to spacing seat in and pass and connect the inside groove and be connected gasbag one side and laminate mutually, the equal fixedly connected with stopper in outer tube both sides, the stopper joint is at spacing inslot, the intraductal inscription cable that has cup jointed of outer tube, the inscription cable communicates respectively has the pneumatic valve and adsorbs the seat, and the pneumatic valve inlays and locates outer tube outer wall one side, adsorb two first binding post of seat inner chamber fixedly connected with and first absorption magnet, first binding post is linked together with the inscription cable, first binding post contacts with outer supporting mechanism.
As a further description of the above technical solution:
connect gasbag one side fixedly connected with wire holder, wire holder one side fixedly connected with second binding post and second adsorption magnet, second binding post contacts with first binding post, second adsorption magnet laminates with first adsorption magnet mutually, it is equipped with sealed cushion to connect gasbag inner chamber cover, and connects the gasbag and be medical elasticity polyurethane component.
As a further description of the above technical solution:
one end of the electric heating metal wire is fixedly connected with one end of the second wiring terminal.
As a further description of the above technical solution:
the inner support mechanism comprises an inner support frame, first pull rings are fixedly connected to two sides of the inner support frame, an elastic wire is fixedly connected to the outer side wall of each first pull ring, a second pull ring is fixedly connected to the other end of each elastic wire, the second pull rings are fixedly connected to one side of the inner cavity of the outer support frame, the elastic wires are elastic polyurethane beams, anti-collision pads are fixedly connected to two sides of the inner support frame, and sealing pads are fixedly connected to the inner cavities of the anti-collision pads.
As a further description of the above technical solution:
the first memory metal wire and the second memory metal wire are both titanium-nickel alloy wires.
As a further description of the above technical solution:
the inner air bag and the limiting seat are medical elastic polyurethane components.
As a further description of the above technical solution:
an opening is formed in the inner cavity of the limiting ring, and the diameter of the inner cavity of the opening is smaller than that of the outer sleeve.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the invention, by arranging the inner air bag, the inner air bag can be rapidly assembled and positioned by matching with the inner connecting cable and the air valve, and postoperative suturing is not required after the memory metal of the outer support frame is heated and expanded for limiting and supporting, so that the operation time is obviously shortened, postoperative risks caused by long operation time are reduced, and the operation safety is improved.
2. According to the invention, the opening at one side of the limiting ring can be tightly attached to the outer sleeve, so that the liner liquid in the biliary tract is prevented from entering the inner cavity of the limiting seat, and the opening can be closed through elastic attachment after the outer sleeve is separated from the limiting ring, so that the liner liquid can be isolated from entering, and the service life of the whole body is prolonged.
3. According to the invention, by arranging the outer support frame, the electrothermal wire after heating carries out hot grafting on the attached biliary tract tissue, the malignant occlusion tissue after hot grafting and carbonization falls into the inner cavity of the outer support frame, and the fallen tissue can carry out tissue biopsy, so that the patient condition can be conveniently detected, the difficulty in taking out the outer support frame is obviously reduced, and the operation of medical staff is facilitated.
4. According to the invention, the inner support frame can support and limit the biliary tract fluid during the circulation of the biliary tract, and the biliary tract fluid can pull the outer wall of the inner support frame to movably abut against the malignant occlusion tissue extending to the inner cavity during the circulation of the biliary tract fluid, so that the secondary occlusion of the biliary tract caused by the overgrowth of the malignant occlusion tissue in the biliary tract is effectively reduced, the supporting and limiting effect on the malignant occlusion tissue of the biliary tract is effectively improved, and the service lives of the outer support frame and the inner support frame can be further prolonged.
5. According to the invention, the anti-collision pads on the two sides of the inner cavity of the inner support frame can reduce collision with the inner cavity of the outer support frame during movement, so that the fixed placement stability of the inner support frame is improved, the resisting effect on top malignant blocking tissues is improved, and the assembly stability is improved.
Drawings
Fig. 1 is a schematic perspective view of a ready-package biliary drainage stent for treatment according to the present invention;
fig. 2 is a schematic view of a three-dimensional split structure of a guide wire mechanism of a ready-package biliary tract drainage stent for treatment according to the present invention;
FIG. 3 is a schematic view of a connection pad of a fast-assembly biliary drainage stent for treatment according to the present invention;
fig. 4 is a schematic perspective view of a limiting seat of a fast-assembly biliary tract internal drainage stent for treatment according to the present invention;
FIG. 5 is a schematic perspective view of an inner balloon of a fast-assembling biliary drainage stent for treatment according to the present invention;
fig. 6 is a schematic perspective view of an external support mechanism of a ready-package biliary tract drainage stent for treatment according to the present invention;
fig. 7 is a schematic perspective view of an inner stent of a ready-package biliary tract drainage stent for treatment according to the present invention;
fig. 8 is a schematic perspective view of a first pull ring of a ready-package biliary drainage stent for treatment according to the present invention;
fig. 9 is a partial cross-sectional structural schematic view of an outer support frame of a ready-package biliary tract drainage stent for treatment according to the present invention.
Illustration of the drawings:
1. a quick-mounting mechanism; 101. a limiting seat; 102. an inner airbag; 103. a sealing gasket; 104. a support conduit; 105. connecting the inner grooves; 106. a connecting pad; 107. a first through hole; 108. a limiting ring; 109. a bump; 110. a convex groove; 111. a clamping hole; 112. a through groove; 113. a limiting groove; 2. a wire guide mechanism; 201. an outer sleeve; 202. an internal cable; 203. a limiting block; 204. an air valve; 205. an adsorption seat; 206. a first connection terminal; 207. a first adsorption magnet; 3. an outer support mechanism; 301. an outer support frame; 3011. a first memory wire; 3012. a second memory wire; 3013. electrically heating the wire; 302. connecting the air bag; 303. a wire holder; 304. a second connection terminal; 305. a second attracting magnet; 306. sealing the rubber gasket; 307. a weight pad; 4. an inner support mechanism; 401. an inner support frame; 402. a first pull ring; 403. stretch yarn; 404. an anti-collision pad; 405. edge sealing pads; 406. a second tab.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-9, the present invention provides a technical solution: a fast-assembly biliary tract internal drainage support for treatment comprises a fast-assembly mechanism 1, wherein a wire guide mechanism 2 is sleeved on one side of the fast-assembly mechanism 1, an outer support mechanism 3 is fixedly connected on one side of the wire guide mechanism 2, and an inner support mechanism 4 is fixedly connected in an inner cavity of the outer support mechanism 3;
the quick assembly mechanism 1 comprises a limiting seat 101, clamping holes 111 are arranged on both sides of the limiting seat 101, through grooves 112 are respectively arranged at both sides of the clamping hole 111, a limit groove 113 is arranged at one side of the inner cavity of the through groove 112, both ends of one side of the limiting seat 101 are provided with convex grooves 110, the convex grooves 110 are clamped with convex blocks 109, a connecting pad 106 is fixedly connected between the bumps 109 at the two sides, a position of the connecting pad 106 corresponding to the through groove 112 is provided with a spacing ring 108, a first through hole 107 is axially arranged on the connecting pad 106, an inner air bag 102 is fixedly connected with the inner cavity of the limiting seat 101, the inner air bag 102 is integrally provided with a connecting inner groove 105, the outer wall of the inner air bag 102 is communicated with a plurality of supporting guide pipes 104, the supporting guide pipes 104 are embedded at one side of the inner cavity of the limiting seat 101, a sealing washer 103 is sleeved on the outer wall of the supporting guide pipe 104, and the sealing washer 103 is embedded in one side of the inner cavity of the limiting seat 101 and is attached to the inner cavity;
the guide wire mechanism 2 comprises an outer sleeve 201, the outer sleeve 201 passes through the limiting ring 108 to extend into the limiting seat 101 and passes through the connecting inner groove 105 to be jointed with one side of the connecting air bag 302, the two sides of the outer sleeve 201 are fixedly connected with limit blocks 203, the limit blocks 203 are clamped in the limit grooves 113, an inner cable 202 is sleeved in the outer sleeve 201, the inner cable 202 is respectively communicated with an air valve 204 and an adsorption seat 205, the air valve 204 is embedded on one side of the outer wall of the outer sleeve 201, the inner cavity of the adsorption seat 205 is fixedly connected with two first terminals 206 and a first adsorption magnet 207, the first connection terminal 206 is connected to the inner cable 202, the first connection terminal 206 is in contact with the outer support mechanism 3, the inner air bag 102 and the limiting seat 101 are both medical elastic polyurethane components, an opening is formed in the inner cavity of the limiting ring 108, and the diameter of the inner cavity of the opening is smaller than that of the outer sleeve 201.
The implementation mode is specifically as follows: when a patient is subjected to biliary drainage and stent placement surgery, the outer support mechanism 3 and the quick-assembly mechanism 1 are sleeved with the endoscope pipeline, after the endoscope places the outer support frame 301 into the biliary tract corresponding position, the air is quickly pumped to the air valve 204 through the internal cable 202 in the wire guide mechanism 2, the internal cable 202 ensures that the air valve 204 supplies the air supply pipeline and the first connecting terminal 206 power supply wire bundle, and the air valve 204 supports and limits the position through the hard outer sleeves 201, so that the bending resistance and the durability are improved, the air valve 204 pumps air and then blows air through the connecting air valve 204 of the inner air bag 102, the air-blown supported inner air bag 102 and the supporting conduit 104 at one side extend from the sealing washer 103 in the inner cavity of the limiting seat 101, the connecting inner groove 105 at one side of the inner air bag 102 can be convenient for the outer sleeves 201 to move in and be communicated with the air valve 204 of the external internal cable 202 through the air bag connecting air valve 204 inside the connecting inner groove 105, so as to ensure the tightness during air pumping, the air leakage is avoided, the supporting catheter 104 is fixed with the inner wall of the biliary tract after being stretched, so that the limiting seat 101 and the rear outer supporting frame 301 can be limited and supported by the supporting catheter 104 through the inflation of the inner air bag 102, after the fixing and limiting are completed, the outer sleeve 201 is screwed to drive the limiting block 203 to move out of the limiting groove 113, the limiting block 203 is pulled to rotate and move to the limiting groove 113, the limiting block 203 moves out of the through grooves 112 at the two sides, the outer sleeve 201 is separated from the limiting seat 101 at the moment, then the connecting pad 106 and the limiting ring 108 are separated through the movement of the endoscope pipeline, the opening at one side of the limiting ring 108 can be tightly jointed with the outer sleeve 201, the biliary tract liquid is prevented from entering the inner cavity of the limiting seat 101, after the outer sleeve 201 is separated from the limiting ring 108, the opening can be sealed through the elastic jointing, the biliary tract biliary liquid can be isolated from entering, the whole service life can be prolonged, and the fast assembling and the positioning can be realized through the matching of the inner air bag 102 and the inner cable 202 and the air valve 204, postoperative suturing is carried out after the memory metal temperature-returning expansion limiting support of the outer support frame 301 is not needed, so that the operation time is obviously shortened, postoperative risks caused by long operation time are reduced, and the operation safety is improved.
The outer supporting mechanism 3 comprises an outer supporting frame 301, the outer supporting frame 301 is formed by winding and weaving a first memory metal wire 3011, a second memory metal wire 3012 and an electric heating metal wire 3013, the inner cavity of the outer supporting frame 301 is connected with an inner supporting mechanism 4 in a transmission manner, one side of the outer supporting frame 301 is fixedly connected with a counterweight pad 307, the other side of the outer supporting frame 301 is fixedly connected with one side of the fast-assembling mechanism 1 through a connecting air bag 302, one side of the connecting air bag 302 is fixedly connected with a wire holder 303, one side of the wire holder 303 is fixedly connected with a second connecting terminal 304 and a second adsorption magnet 305, the second connecting terminal 304 is in contact with the first connecting terminal 206, the second adsorption magnet 305 is in fit with the first adsorption magnet 207, the inner cavity of the connecting air bag 302 is sleeved with a sealing rubber pad 306, the connecting air bag 302 is a medical elastic polyurethane component, and the outer supporting frame 301 is a hexagon socket, one end of the electrothermal metal wire 3013 is fixedly connected to one end of the second connection terminal 304, and the first memory metal wire 3011 and the second memory metal wire 3012 are both titanium-nickel alloy wires.
The implementation mode is specifically as follows: when the outer support frame 301 is placed in the inner biliary tract, the first memory metal wire 3011 and the second memory metal wire 3012 of the outer support frame 301 woven material can expand and recover after being heated, the first memory metal wire 3011 and the second memory metal wire 3012 after expansion and recovery can pull the electric heating metal wire 3013 to expand and adhere to the tissue of the outer biliary tract, when the malignant occlusion tissue in the biliary tract grows into the space between the first memory metal wire 3011 and the second memory metal wire 3012, when the outer support frame 301 needs to be taken out, the endoscope pipeline drives the outer sleeve 201 and the inner cable 202 to be inserted into the limit seat 101, after the limit block 203 is moved into the through groove 112, the endoscope pipeline is driven by an external mechanism to rotate the outer sleeve 201 in the limit block 203 to rotate in the limit groove 113, at this time, the air valve 204 is communicated with the inner balloon 102, the inner cable 202 exhausts the inner balloon 102, the support catheter 104 is moved into the limit seat 101, at this time, the inserted outer catheter and the adsorption seat 205 are adsorbed and positioned with the second adsorption magnet 305 through the first adsorption magnet 207, after the positioning, the first connecting terminal 206 and the second connecting terminal 304 on the two sides are attached in an adsorption manner, after the power is supplied through the first connecting terminal 206, the electric heating wire 3013 works to generate heat, the electric heating wire 3013 after the temperature rise carries out the hot-pressing connection on the attached biliary tract tissue, and the malignant occlusion tissue after the hot-pressing connection and carbonization falls into the inner cavity of the outer support frame 301, so that the difficulty of taking out the support can be reduced by heating and cutting the malignant occlusion biliary tract tissue, meanwhile, the tissue falling can be subjected to tissue biopsy, the illness state of a patient can be conveniently detected, the difficulty of taking out the outer support frame 301 is obviously reduced, and the operation of medical staff is convenient.
The inner support mechanism 4 comprises an inner support frame 401, wherein both sides of the inner support frame 401 are fixedly connected with first pull rings 402, the outer side walls of the first pull rings 402 are fixedly connected with elastic wires 403, the other ends of the elastic wires 403 are fixedly connected with second pull rings 406, the second pull rings 406 are fixedly connected with one side of the inner cavity of the outer support frame 301, the elastic wires 403 are elastic polyurethane beams, both sides of the inner support frame 401 are fixedly connected with crash pads 404, and the inner cavities of the crash pads 404 are fixedly connected with edge sealing pads 405.
The implementation mode is specifically as follows: the inner support frame 401 can support and limit the biliary tract bile flow, the inner support frame 401 can be in transmission connection with the second pull ring 406 of the inner cavity of the outer support frame 301 through the first pull rings 402 and the elastic wires 403 on two sides, the outer wall of the inner support frame 401 can be pulled to be movably abutted with malignant occlusion tissues extending to the inner cavity during the biliary tract bile flow, secondary occlusion of the biliary tract caused by overgrowth of the malignant occlusion tissues in the biliary tract is effectively reduced, the supporting and limiting effects on the malignant occlusion tissues of the biliary tract are effectively improved, and the service lives of the outer support frame 301 and the inner support frame 401 can be further prolonged.
The working principle is as follows: when in use, when the biliary tract drainage is carried out on a patient and a stent is placed for surgery, the outer support mechanism 3 and the fast-assembling mechanism 1 are sleeved with the endoscope pipeline, the endoscope puts the outer support frame 301 into the biliary tract corresponding position, the air is pumped to the air valve 204 through the internal cable 202 in the wire guide mechanism 2, the internal cable 202 ensures that the air valve 204 supplies the power to the wire bundle, the air valve 204 pumps air through the connecting air valve 204 of the internal air bag 102, the air-inflated internal air bag 102 and the one-side support catheter 104 extend and move out from the sealing washer 103 in the inner cavity of the limit seat 101, the support catheter 104 is attached and fixed with the inner wall of the biliary tract after extending, thereby the limit seat 101 and the rear-side outer support frame 301 can be limited and supported through the support catheter 104 through the inflation fast air blowing of the internal air bag 102, after the limit is fixed, the outer sleeve 201 is screwed to drive the limit block 203 to move out from the limit groove 113, after the limiting block 203 is pulled to rotate and move to the limiting groove 113, the limiting block 203 moves out from the through grooves 112 on the two sides, at this time, the outer sleeve 201 is separated from the limiting seat 101, and then separated from the connecting pad 106 and the limiting ring 108 through the movement of the endoscope pipeline.
When the outer support frame 301 is placed in the inner biliary tract, the first memory metal wire 3011 and the second memory metal wire 3012 of the outer support frame 301 woven material can be expanded and restored after being heated, the first memory metal wire 3011 and the second memory metal wire 3012 after being expanded and restored can pull the electric heating metal wire 3013 to expand and adhere to the tissue of the outer biliary tract, when the malignant occlusion tissue in the biliary tract grows between the first memory metal wire 3011 and the second memory metal wire 3012, the endoscope pipeline drives the outer sleeve 201 and the internal cable 202 to be inserted into the limit seat 101, when the limit block 203 is moved into the through slot 112, the endoscope pipeline is driven by the external mechanism to rotate the outer sleeve 201 in the limit block 203 in the limit slot 113, at this time, the air valve 204 is communicated with the air bag 102, the internal cable 202 performs air suction on the internal air bag 102, the support tube 104 is moved into the limit seat 101, at this time, the inserted outer tube and the adsorption seat 205 are adsorbed and positioned by the first adsorption magnet 207 and the second adsorption magnet 305, after positioning, the first connecting terminal 206 and the second connecting terminal 304 on the two sides are attached in an adsorption manner, after power is supplied through the first connecting terminal 206, the electric heating wire 3013 works to generate heat, the electric heating wire 3013 after heating up carries out hot grafting on the attached biliary tract tissue, and the malignant occlusion tissue after hot grafting and carbonization falls into the inner cavity of the outer support frame 301.
The inner support frame 401 can support and limit the biliary tract bile flow, the inner support frame 401 can be in transmission connection with the second pull ring 406 of the inner cavity of the outer support frame 301 through the first pull rings 402 and the elastic wires 403 on two sides, the outer wall of the inner support frame 401 can be pulled to be movably abutted with malignant occlusion tissues extending to the inner cavity during the biliary tract bile flow, secondary occlusion of the biliary tract caused by overgrowth of the malignant occlusion tissues in the biliary tract is effectively reduced, the supporting and limiting effects on the malignant occlusion tissues of the biliary tract are effectively improved, and the service lives of the outer support frame 301 and the inner support frame 401 can be further prolonged.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. A fast-assembly biliary tract internal drainage support for treatment comprises a fast-assembly mechanism (1), and is characterized in that a wire guide mechanism (2) is sleeved on one side of the fast-assembly mechanism (1), an outer support mechanism (3) is fixedly connected on one side of the wire guide mechanism (2), and an inner support mechanism (4) is fixedly connected in an inner cavity of the outer support mechanism (3);
the outer support mechanism (3) comprises an outer support frame (301), the outer support frame (301) is formed by winding and weaving a first memory metal wire (3011), a second memory metal wire (3012) and an electric heating metal wire (3013), an inner cavity of the outer support frame (301) is in transmission connection with an inner support mechanism (4), one side of the outer support frame (301) is fixedly connected with a counterweight pad (307), and the other side of the outer support frame (301) is fixedly connected with one side of the fast-assembling mechanism (1) through a connecting air bag (302); the quick assembly mechanism (1) comprises a limiting seat (101), clamping holes (111) are formed in two sides of the limiting seat (101), through grooves (112) are formed in two sides of each clamping hole (111), limiting grooves (113) are formed in one side of an inner cavity of each through groove (112), convex grooves (110) are formed in two ends of one side of the limiting seat (101), convex blocks (109) are clamped in the convex grooves (110), connecting pads (106) are fixedly connected between the convex blocks (109) on two sides, limiting rings (108) are formed in positions, corresponding to the through grooves (112), of the connecting pads (106), first through holes (107) are axially formed in the connecting pads (106), inner air bags (102) are fixedly connected in the inner cavity of the limiting seat (101), the inner air bags (102) are integrally connected with the connecting inner grooves (105), a plurality of supporting guide pipes (104) are communicated with the outer wall of the inner air bags (102), and the supporting guide pipes (104) are embedded in one side of the inner cavity of the limiting seat (101), a sealing washer (103) is sleeved on the outer wall of the supporting guide pipe (104), and the sealing washer (103) is embedded at one side of the inner cavity of the limiting seat (101); the guide wire mechanism (2) comprises an outer sleeve (201), the outer sleeve (201) penetrates through a limiting ring (108) to extend into a limiting seat (101) and penetrates through a connecting inner groove (105) to be attached to one side of a connecting air bag (302), both sides of the outer sleeve (201) are fixedly connected with limit blocks (203), the limit blocks (203) are clamped in the limit grooves (113), an inner cable (202) is sleeved in the outer sleeve (201), the inner cable (202) is respectively communicated with an air valve (204) and an adsorption seat (205), the air valve (204) is embedded at one side of the outer wall of the outer sleeve (201), the inner cavity of the adsorption seat (205) is fixedly connected with two first connecting terminals (206) and a first adsorption magnet (207), the first connecting terminal (206) is communicated with the inner connecting cable (202), and the first connecting terminal (206) is contacted with the outer supporting mechanism (3); a wire holder (303) is fixedly connected to one side of the connecting air bag (302), a second connecting terminal (304) and a second adsorption magnet (305) are fixedly connected to one side of the wire holder (303), the second connecting terminal (304) is in contact with the first connecting terminal (206), the second adsorption magnet (305) is attached to the first adsorption magnet (207), a sealing rubber pad (306) is sleeved in an inner cavity of the connecting air bag (302), and the connecting air bag (302) is a medical elastic polyurethane component; an air bag connecting air valve is arranged in the connecting inner groove (105) and is used for being communicated with an air valve (204) of the internal connecting cable (202) so as to inflate the inner air bag (102).
2. The ready-to-use biliary internal drainage stent for treatment according to claim 1, wherein the outer support frame (301) has a hexagonal-inside honeycomb shape.
3. The quick-assembly biliary drainage stent for treatment according to claim 2, wherein one end of the electrothermal wire (3013) is fixedly connected to one end of the second connection terminal (304).
4. The biliary tract internal drainage stent for treatment according to claim 3, wherein the internal support mechanism (4) comprises an internal support frame (401), a first pull ring (402) is fixedly connected to both sides of the internal support frame (401), a resilient wire (403) is fixedly connected to an outer side wall of the first pull ring (402), a second pull ring (406) is fixedly connected to the other end of the resilient wire (403), the second pull ring (406) is fixedly connected to one side of an inner cavity of the external support frame (301), the resilient wire (403) is a resilient polyurethane bundle, crash pads (404) are fixedly connected to both sides of the internal support frame (401), and a sealing edge pad (405) is fixedly connected to an inner cavity of the crash pads (404).
5. The ready-to-use biliary drainage stent for treatment according to claim 4, wherein the first memory wire (3011) and the second memory wire (3012) are both titanium-nickel alloy wires.
6. The quick-assembly biliary tract internal drainage stent for treatment according to claim 5, wherein the inner balloon (102) and the limiting seat (101) are both medical elastic polyurethane members.
7. The quick-assembly biliary drainage stent for treatment according to claim 6, wherein the inner cavity of the stop collar (108) is open, and the diameter of the open inner cavity is smaller than the diameter of the outer sleeve (201).
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| WO2003094799A1 (en) * | 2002-05-10 | 2003-11-20 | Cordis Corporation | Unidirectional flow prosthetic implant based on a multi-lobed frame |
| WO2010029190A1 (en) * | 2008-09-15 | 2010-03-18 | Joensson Anders | Medical device, method and system for temporary occlusion of an opening in a lumen of a body |
| CN205515040U (en) * | 2016-01-14 | 2016-08-31 | 高道键 | Prevent shifting biliary tract fully coated from expanding formula metal support |
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| US10265076B2 (en) * | 2015-03-16 | 2019-04-23 | Steven Clark Block | Vascular occluding bridged self-expanding metal stent (VOBSEMS) |
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| WO2003094799A1 (en) * | 2002-05-10 | 2003-11-20 | Cordis Corporation | Unidirectional flow prosthetic implant based on a multi-lobed frame |
| WO2010029190A1 (en) * | 2008-09-15 | 2010-03-18 | Joensson Anders | Medical device, method and system for temporary occlusion of an opening in a lumen of a body |
| CN205515040U (en) * | 2016-01-14 | 2016-08-31 | 高道键 | Prevent shifting biliary tract fully coated from expanding formula metal support |
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