CN105520794A - Interventional treatment catheter guide wire outlet designing method - Google Patents
Interventional treatment catheter guide wire outlet designing method Download PDFInfo
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- CN105520794A CN105520794A CN201610124297.1A CN201610124297A CN105520794A CN 105520794 A CN105520794 A CN 105520794A CN 201610124297 A CN201610124297 A CN 201610124297A CN 105520794 A CN105520794 A CN 105520794A
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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
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/958—Inflatable balloons for placing stents or stent-grafts
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- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
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- Oral & Maxillofacial Surgery (AREA)
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Abstract
The invention discloses an interventional treatment catheter guide wire outlet designing method. The method includes that an inner cavity tube extends out from one side of the lower end of an outer cavity tube, and a transition tube after being treated is inserted from the other side of the lower end of the outer cavity tube; a protecting guide wire is inserted below the inner cavity tube to ensure a portion, in the outer cavity tube, of the inner cavity tube to continue to be maintained unobstructed; a position where the inner cavity tube, the outer cavity tube and the transition tube are combined is welded to enable the inner wall of the outer cavity tube, the outer wall of the inner cavity tube and the outer wall of the transition tube at the combining position to be bonded together seamlessly; the protecting guide wire in the inner cavity tube is drawn out, and the inner cavity tube is bent and stretched at the welding and combining position and then smoothly cut along the combining position of the outer cavity tube to form a guide wire outlet. By using the method, production processes are reduced, and passing performance of a catheter and the guide wire, performance, in guiding the catheter, of the guide wire and catheter pushing performance are improved. The method has the advantages of high production efficiency and low production cost.
Description
Technical field
The present invention relates to a kind of guide wire exit openings method for designing, particularly relate to a kind of interventional therapy conduit guide wire exit openings method for designing.
Background technology
In cardiovascular interventional operation, by seal wire guide ball ductus bursae induction system, drug stent is sent into the pathological changes stenosis of blood vessel, then expandable stent makes lesion be expanded, and effectively can solve the narrow problem of patient's lesion vessels.In operation process, guiding wire penetrates from the tip of foley's tube induction system, is passed from guide wire exit openings by lumen tube, plays rail effect to the catheter delivery system of whole operation.The method for designing of conventional guide wires outlet is all the side perforating at external-cavity tube, lumen tube is entered external-cavity tube from the punching oblique cutting of external-cavity tube, then carry out the welding of guide wire exit openings place, then external-cavity tube right-hand member is welded mutually with transition conduit, afterwards the excision of unnecessary lumen tube is formed guide wire exit openings.This guide wire exit openings method for designing needs to carry out secondary welding, has the shortcoming that workload is large, manufacturing process is complicated, production efficiency is low.
Summary of the invention
In order to solve the weak point existing for above-mentioned technology, the invention provides a kind of interventional therapy conduit guide wire exit openings method for designing.
In order to solve above technical problem, the technical solution used in the present invention is: a kind of interventional therapy conduit guide wire exit openings method for designing, comprises the following steps:
A, conduit are assembled: to be first enclosed within the lower end of dilating sacculus on external-cavity tube and to weld junction; Again protection seal wire is penetrated in lumen tube, the lower end of lumen tube from external-cavity tube is penetrated, make lumen tube carry out Combination Welding through after external-cavity tube, dilating sacculus with catheter tip successively; Above-mentioned lumen tube is carried out layback from the side, lower end of external-cavity tube;
B, external-cavity tube are expanded: the divergence process of the above-mentioned conduit completing assembling being carried out external-cavity tube; First inserted by the opposite side of reamer from external-cavity tube lower end, the degree of depth of insertion is 1.5-2.0mm; Utilize above-mentioned reamer to expand external-cavity tube afterwards, then reamer is slowly shifted out in external-cavity tube;
C, transition conduit pretreatment: the pretreatment in face that the upper end of transition conduit is faded, make it form one to tilt and the side of caving in, the inclination angle degree that lower end enlarging place of the inclination of side, sinking degree and external-cavity tube (103) and lumen tube (104) tilt to pass matches; The length of pretreatment transition conduit is 3.5-4.5mm; The shape of pretreated transition conduit upper surface is crescent;
The pretreatment of d, D type seal wire: D type seal wire, before insertion transition conduit, carries out the pretreatment matched with transition conduit upper end, makes its upper side be the stair-stepping face that fades to its upper end, thus make its upper surface in " D type "; Above-mentioned pretreated D type seal wire is inserted in transition conduit, again the transition conduit after above-mentioned assembling is inserted into 1.8-2.0mm place in the external-cavity tube after expansion, make the upper end of D type seal wire reach 4-5mm place in external-cavity tube by transition conduit, do not shut when welding under the protection of D type protection seal wire with transition conduit one end outlet of guaranteeing to insert external-cavity tube;
The pretreatment of e, silica gel tube: before guide wire exit openings technique is carried out, first carries out cutting process to the protection silica gel tube used during welding, makes its length dimension and external-cavity tube, the length of lumen tube and transition conduit triplicity place matches; Then the silica gel tube after above-mentioned cutting being put into frock container normal hexane immersion treatment makes it expand, and soak time is 0.2-2.0h;
F, welding: silica gel tube is pulled out control dry, ensure its before the use surfaces externally and internally all no longer with normal hexane; Then be inserted in silica gel tube from the lower end of the transition conduit penetrating D type seal wire, make silica gel tube cover the binding site of lumen tube, external-cavity tube and transition conduit completely; The above-mentioned conduit assembled is put into drying unit dry, bake out temperature is 55-65 °; Conduit after above-mentioned oven dry is put on hot welding equipment, together with being welded to each other of the outer wall seamless of the external-cavity tube inwall that silica gel tube is covered, lumen tube outer wall and transition conduit, ensure that the weld of above-mentioned three pipes matter state at high temperature occurs and changes then smooth and seamless and firmly combine;
G, post processing: extract after the silica gel tube normal hexane immersion treatment of welding after above-mentioned welding process completes; Afterwards protection seal wire, D type seal wire are extracted out respectively from lumen tube, transition conduit, then stretch and turn up lumen tube, and the unnecessary lumen tube of stretching out external-cavity tube is smoothly excised, form guide wire exit openings; Again passive for the upper end being connected to hypotube motive power bar is inserted in transition conduit, finally hypotube is welded with the junction of transition conduit.
The medical material of lumen tube, external-cavity tube, transition conduit is pebax or nylon or Merlon or polyethylene or politef or polrvinyl chloride or polypropylene or polystyrene or silicone rubber or polyester or polymethyl methacrylate or polyurethane or natural rubber.
The present invention not only reduces production technology, also effectively improves conduit and seal wire by performance, seal wire to the introductory of conduit and catheter propelling, has the advantage that production efficiency is high, production cost is low.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is the schematic diagram of the transition conduit insertion external-cavity tube after assembling.
Fig. 3 is the leading flank structural representation of D type seal wire.
Fig. 4 is transition conduit pretreated upper surface tooling drawing.
In figure: 101, catheter tip; 102, dilating sacculus; 103, external-cavity tube; 104, lumen tube; 105, guide wire exit openings; 106, motive power bar; 107, transition conduit; 108, hypotube; 109, D type seal wire; 110, seal wire is protected; 111, pressure pipe equipment bobbin; 112, pressure surface plate.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
As shown in Figure 1, a kind of interventional therapy conduit guide wire exit openings structure comprises dilating sacculus 102, lumen tube 104, external-cavity tube 103, transition conduit 107; The upper end of dilating sacculus 102 is welded mutually with catheter tip 101, lower end is nested with on external-cavity tube 103; Lumen tube 104 is plugged in external-cavity tube 103 and dilating sacculus 102;
The lower end of external-cavity tube 103 is nested with in transition conduit 107; The lower end of transition conduit 107 is welded mutually with hypotube 108; The upper end of hypotube 108 is provided with motive power bar 106; The lower end that motive power bar 106 is plugged on transition conduit 107 is inner;
The lower end of lumen tube 104 forms guide wire exit openings 105 after being tilted to the right and passing bending excision again; A side of transition conduit 107 upper end is tilt and the curved surface of depression, the mating shapes of the inwall of the sinking degree of curved surface and the outer wall of lumen tube 104 or external-cavity tube 103.
The junction of the upper end of transition conduit 107 and lumen tube 104, external-cavity tube 103 is provided with transition opening.
The method for designing of interventional therapy conduit guide wire exit openings is: lumen tube 104 is extended from the side, lower end of external-cavity tube 103, is inserted by the opposite side of treated transition conduit 107 from external-cavity tube 103 lower end; Then by inserting protection seal wire 110 below lumen tube 104, guarantee that the part of lumen tube 104 in external-cavity tube 103 continues to keep clear; The binding site of lumen tube 104, external-cavity tube 103 and transition conduit 107 3 pipes is welded, makes mutually being pasted together of external-cavity tube 103 inwall of binding site, lumen tube 104 outer wall and the outer wall seamless of transition conduit 107; Again the protection seal wire 110 in lumen tube 104 is extracted out, and at solder bond place, lumen tube 104 is bent stretching, afterwards along external-cavity tube 103 junction to the smoothing cutting of lumen tube 104, formed guide wire exit openings 105;
The specific design step of interventional therapy conduit guide wire exit openings is as follows:
A, conduit are assembled: to be first enclosed within the lower end of dilating sacculus 102 on external-cavity tube 103 and to weld junction; Again protection seal wire 110 is penetrated in lumen tube 104, the lower end of lumen tube 104 from external-cavity tube 103 is penetrated, make lumen tube 104 carry out Combination Welding through after external-cavity tube 103, dilating sacculus 102 with catheter tip 101 successively; Above-mentioned lumen tube 104 is carried out layback from the side, lower end of external-cavity tube 103;
B, external-cavity tube are expanded: the divergence process of the above-mentioned conduit completing assembling being carried out external-cavity tube 103, as shown in Figure 2; First inserted by the opposite side of reamer from external-cavity tube 103 lower end, the degree of depth of insertion is 1.5-2.0mm; Utilizing reamer to expand external-cavity tube 103 afterwards, then reamer is slowly shifted out carefully in external-cavity tube 103, guaranteeing that expanding extended region is not damaged, without scratching and hole;
C, transition conduit pretreatment: the pretreatment in face that the upper end of transition conduit 107 is faded as shown in Figure 2, make it form one to tilt and the side of caving in, the inclination angle degree that lower end enlarging place of the inclination of side, sinking degree and external-cavity tube (103) and lumen tube (104) tilt to pass matches; The length of pretreatment transition conduit 107 is 3.5-4.5mm; The shape of pretreated transition conduit 107 upper surface is crescent, as shown in Figure 4;
The pretreatment of d, D type seal wire: D type seal wire 109 insertion transition conduit 107 before, the pretreatment in face that its upper side is faded equally; Be that the upper side of D type seal wire 109 does stepped process with the upper side difference of transition conduit 107, and do not cave in, its upper surface is " D type ", as shown in Figure 3; Pretreated D type seal wire 109 coupling is inserted in transition conduit 107, again the transition conduit 107 after above-mentioned assembling is inserted into 1.8-2.0mm place in the external-cavity tube after expansion 103, make the upper end of D type seal wire 109 reach 4-5mm place in external-cavity tube 103 by transition conduit 107, do not shut when welding under the protection of D type protection seal wire with transition conduit 106 one end outlet of guaranteeing to insert external-cavity tube 103; The step-like design of D type seal wire 109 side facilitates it to be inserted in external-cavity tube 103 more efficiently;
The pretreatment of e, silica gel tube: before guide wire exit openings technique is carried out, first carries out cutting process to the protection silica gel tube used during welding, and its length dimension is matched with the length of external-cavity tube 103, lumen tube 104 and transition conduit 107 triplicity place respectively; Then silica gel tube being put into frock container normal hexane immersion treatment makes it expand, and soak time is 0.2-2.0h;
F, welding: silica gel tube is pulled out control dry, ensure its before the use surfaces externally and internally all no longer with normal hexane; Then be inserted in silica gel tube from the lower end of the transition conduit 107 penetrating D type seal wire 109, make silica gel tube cover the binding site of lumen tube 104, external-cavity tube 103 and transition conduit 107 completely; The above-mentioned conduit assembled is put into drying unit dry, bake out temperature is 55-65 °; Conduit after above-mentioned oven dry is put on hot welding equipment, together with being welded to each other of external-cavity tube 103 inwall that silica gel tube is covered, lumen tube 104 outer wall and the outer wall seamless of transition conduit 107, ensure that the weld of above-mentioned three pipes matter state at high temperature occurs and changes then smooth and seamless and firmly combine;
G, post processing: extract after the silica gel tube normal hexane immersion treatment of welding after above-mentioned welding process completes; Seal wire 110, D type seal wire 109 will be protected afterwards to extract out from lumen tube 104, transition conduit 107 respectively, then stretch and turn up lumen tube 104, and the unnecessary lumen tube 104 of stretching out external-cavity tube 103 is smoothly excised, form guide wire exit openings 105; Again passive for the upper end being connected to hypotube 108 motive power bar 106 is inserted in transition conduit 107, finally the junction of hypotube 108 with transition conduit 107 is welded.
The medical material of lumen tube 104, external-cavity tube 103, transition conduit 107 is pebax or nylon or Merlon or polyethylene or politef or polrvinyl chloride or polypropylene or polystyrene or silicone rubber or polyester or polymethyl methacrylate or polyurethane or natural rubber.
The present invention compares with the guide wire exit openings method for designing that this area is traditional, has following advantage:
(1), from external-cavity tube end directly lumen tube is pulled out, no longer need a side perforating at external-cavity tube so that lumen tube passes, save the operating time;
(2), in lumen tube, external-cavity tube and transition conduit triplicity place realize a step welding, welded relative to traditional guide wire exit openings place the erecting and welding carrying out transition conduit again, decreased a step welding procedure;
(3), the guide wire exit openings of mode process that punches relative to tradition of the guide wire exit openings of process of the present invention, more smooth and easy when guide ball ductus bursae induction system, conduit and seal wire can be significantly improved by performance and catheter propelling performance;
(4), adopt thermal weld technique to carry out the welding of conduit assembling junction, its speed of welding, apparently higher than traditional laser weld, significantly improves work efficiency.
Above-mentioned embodiment is not limitation of the present invention; the present invention is also not limited in above-mentioned citing; the change that those skilled in the art make within the scope of technical scheme of the present invention, remodeling, interpolation or replacement, also all belong to protection scope of the present invention.
Claims (2)
1. an interventional therapy conduit guide wire exit openings method for designing, is characterized in that: this method for designing comprises the following steps:
A, conduit are assembled: first the lower end of dilating sacculus (102) is enclosed within external-cavity tube (103) and goes up and weld junction; Seal wire (110) will be protected again to penetrate in lumen tube (104), the lower end of lumen tube (104) from external-cavity tube (103) is penetrated, makes lumen tube (104) carry out Combination Welding through after external-cavity tube (103), dilating sacculus (102) with catheter tip (101) successively; Above-mentioned lumen tube (104) is carried out layback from the side, lower end of external-cavity tube (103);
B, external-cavity tube are expanded: the divergence process of the above-mentioned conduit completing assembling being carried out external-cavity tube (103); First inserted by the opposite side of reamer from external-cavity tube (103) lower end, the degree of depth of insertion is 1.5-2.0mm; Utilize above-mentioned reamer to expand external-cavity tube (103) afterwards, then reamer is slowly shifted out in external-cavity tube (103);
C, transition conduit pretreatment: the pretreatment in face that the upper end of transition conduit (107) is faded, make it form one to tilt and the side of caving in, the inclination angle degree that lower end enlarging place of the inclination of side, sinking degree and external-cavity tube (103) and lumen tube (104) tilt to pass matches; The length of pretreatment transition conduit (107) is 3.5-4.5mm; The shape of pretreated transition conduit (107) upper surface is crescent;
The pretreatment of d, D type seal wire: D type seal wire (109) is before insertion transition conduit (107), its upper end is carried out to the pretreatment matched with transition conduit (107) upper end, make its upper side be the stair-stepping face that fades, thus make its upper surface in " D type "; Above-mentioned pretreated D type seal wire (109) is inserted in transition conduit (107), again the transition conduit (107) after above-mentioned assembling is inserted into the interior 1.8-2.0mm place of the external-cavity tube after expansion (103), make the upper end of D type seal wire (109) reach the interior 4-5mm place of external-cavity tube (103) by transition conduit (107), do not shut when welding under the protection of D type protection seal wire with transition conduit (106) one end outlet of guaranteeing to insert external-cavity tube (103);
The pretreatment of e, silica gel tube: before guide wire exit openings technique is carried out, first cutting process is carried out to the protection silica gel tube used during welding, make its length dimension and external-cavity tube (103), the length of lumen tube (104) and transition conduit (107) triplicity place matches; Then the silica gel tube after above-mentioned cutting being put into frock container normal hexane immersion treatment makes it expand, and soak time is 0.2-2.0h;
F, welding: silica gel tube is pulled out control dry, ensure its before the use surfaces externally and internally all no longer with normal hexane; Then be inserted in silica gel tube from the lower end of the transition conduit (107) penetrating D type seal wire (109), make silica gel tube cover the binding site of lumen tube (104), external-cavity tube (103) and transition conduit (107) completely; The above-mentioned conduit assembled is put into drying unit dry, bake out temperature is 55-65 °; Conduit after above-mentioned oven dry is put on hot welding equipment, together with being welded to each other of external-cavity tube (103) inwall that silica gel tube is covered, lumen tube (104) outer wall and transition conduit (107) outer wall seamless, ensure that the weld of above-mentioned three pipes matter state at high temperature occurs and changes then smooth and seamless and firmly combine;
G, post processing: extract after the silica gel tube normal hexane immersion treatment of welding after above-mentioned welding process completes; Seal wire (110), D type seal wire (109) will be protected afterwards to extract out from lumen tube (104), transition conduit (107) respectively, then stretch and turn up lumen tube (104), and the unnecessary lumen tube (104) of stretching out external-cavity tube (103) is smoothly excised, form guide wire exit openings (105); Again passive for the upper end being connected to hypotube (108) motive power bar (106) is inserted in transition conduit (107), finally the junction of hypotube (108) with transition conduit (107) is welded.
2. an interventional therapy conduit guide wire exit openings method for designing, is characterized in that: the medical material of described lumen tube (104), external-cavity tube (103), transition conduit (107) is pebax or nylon or Merlon or polyethylene or politef or polrvinyl chloride or polypropylene or polystyrene or silicone rubber or polyester or polymethyl methacrylate or polyurethane or natural rubber.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610124297.1A CN105520794B (en) | 2016-03-04 | 2016-03-04 | A kind of interventional therapy conduit guide wire exit openings method for designing |
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| CN201610124297.1A CN105520794B (en) | 2016-03-04 | 2016-03-04 | A kind of interventional therapy conduit guide wire exit openings method for designing |
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| CN105520794B CN105520794B (en) | 2017-06-20 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107823778A (en) * | 2017-12-13 | 2018-03-23 | 山东吉威医疗制品有限公司 | A kind of reworking method of foley's tube guide wire exit openings |
| CN108744233A (en) * | 2018-06-28 | 2018-11-06 | 山东吉威医疗制品有限公司 | A kind of medicine balloon dilating catheter and its technique |
| CN110666461A (en) * | 2019-10-21 | 2020-01-10 | 运怡（北京）医疗器械有限公司 | Processing method of metal guide wire |
| CN111110414A (en) * | 2019-12-06 | 2020-05-08 | 先健科技(深圳)有限公司 | Implant system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110666461A (en) * | 2019-10-21 | 2020-01-10 | 运怡（北京）医疗器械有限公司 | Processing method of metal guide wire |
| CN110666461B (en) * | 2019-10-21 | 2021-02-19 | 运怡（北京）医疗器械有限公司 | Processing method of metal guide wire |
| CN111110414A (en) * | 2019-12-06 | 2020-05-08 | 先健科技(深圳)有限公司 | Implant system |
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| CN105520794B (en) | 2017-06-20 |
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