It is a kind of hemostasis and medicament slow release art in nasal sinus bracketTechnical field
The present invention relates to a kind of medical devices for treating nasosinusitis, more specifically to a kind of hemostasis and medicament slow releaseNasal sinus bracket in art.
Background technique
Maxillary sinus, the mucous membrane inflammation for sieving sinus, sinus frontalis and sphenoid sinus are referred to as nasosinusitis, frequently result in polyp and are formed.NasosinusitisIt is the disease often occurred in rhinopathy, influences patients ' life quality, under normal circumstances, needs to carry out nasosinusitis by operative treatmentTreatment, and after the procedure, intervene Improving Measurements if do not taken in art, often will appear the risks such as inflammation or wound recurrence,And nasal sinus drug stent is the postoperative ameliorative way that most people compares receiving at present, and in the prior art, most of nasal sinus drug branchFrame exist be adhered, wound recurrence, the surface of a wound is clogged when in use, so that patient replaces inconvenient, postoperative life quality decline.
Summary of the invention
The present invention overcomes the deficiencies in the prior art, the nasal sinus bracket in a kind of hemostasis and medicament slow release art, branch are providedSupport property is more preferable, prevents from being adhered and recur with wound, and can effectively eliminate inflammation and hemostasis.
To achieve the goals above, present invention employs following technical proposals:
A kind of nasal sinus bracket in hemostasis and medicament slow release art, it includes rack body, and rack body includes at least fourSupport rod and annulus, the support rod are arc type structure, and support rod is elastic material, rack body both ends be respectively fixing end andFree end, described support rod one end are each attached on the annulus, are hollow structure inside the support rod, if support rod is equipped withDry capillary through holes, the hollow inside of support rod are equipped with drug-loaded layer, and the drug-loaded layer is equipped with the drug for anti-inflammatory, the branchIt is enclosed with hemostatic material on the outside of strut, there is hemostasis and bracket effect after placement, do not need to be clogged again, mitigates patient's painIt is bitter.
Preferably, the support rod and annulus are degradable high polymer material.
Preferably, nasal sinus bracket further includes delivery conduit, funnel and pusher, and the pusher includes connecting tube, casingAnd push rod, the push rod are set in casing, the connecting tube is fixedly connected with casing, and connecting tube is mutually communicated with casing, instituteIt states on connecting tube fitting connection delivery conduit, is detachably connected between the funnel and delivery conduit, delivery conduit is hollow leadsPipe, the funnel are equipped with through-hole, and the through-hole diameter is equal with circle diameter, and the rack body is compressible to be set into the funnelIn the through-hole set, rack body can be compressed into delivery conduit completely by the through-hole.
Preferably, the rack body is cylindrical structure under compression.
Preferably, when the rack body is compressed into through-hole, fixing end is towards through-hole outer end, and free end is towards through-holeIt is internal.
Preferably, the delivery conduit is pebax pipe.
Preferably, the hemostatic material is chitosan class hemostatic material.
Preferably, the rack body is Lantern structure under expansion state, and rack body maximum gauge range is25-40mm。
Preferably, momestasone furoate can be used in the drug for anti-inflammatory, and drug capacity range is 580-680 μg。
Preferably, the capillary through holes diameter range is 10-25 μ g.
Compared with prior art, beneficial effects of the present invention:
The present invention is by support rod and the preferable rack body of annulus composition elasticity, and elasticity is preferably, can be in sinus cavitiesMiddle expansion simultaneously supports sinus cavities well, it is ensured that nasal sinus is unimpeded, prevents from being adhered；Meanwhile anti-inflammatory is equipped in support rodDrug can be discharged by the capillary through holes that support rod is arranged, and effectively inhibit the recurrence of polyp lesion；It is wrapped up in support rodHemostatic material can stop blooding, and for the postoperative effect that is greatly improved of patient, do not have to filling nasal cavity, it is postoperative to mitigate patientPain improves the postoperative quality of life of patient.
Detailed description of the invention
Fig. 1 is the structural schematic diagram under rack body expansion state of the invention；
Fig. 2 is the structural schematic diagram under rack body compressive state of the invention；
Fig. 3 is the schematic cross-section of support rod of the invention；
Fig. 4 is the enlarged drawing of structure at A in Fig. 2
Fig. 5 is the structural schematic diagram of hourglass and conduit of the invention；
Fig. 6 is the structural schematic diagram of pusher of the invention.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and detailed description:
With reference to Fig. 1-Fig. 4, it is a kind of hemostasis and medicament slow release art in nasal sinus bracket, it includes rack body 1, rack body1 includes at least four support rods 10 and annulus 11, and the support rod 10 is arc type structure, and support rod 10 is without any corner angle, branch10 surface of strut is smooth, and support rod 10 is elastic material, such as polyester biomaterial, and 1 both ends of rack body are respectively fixing endAnd free end, fixing end are fixed connection structure, free end can be carried out for free extension such as Fig. 1-Fig. 2 by free endCompression or expansion can be expanded well since support rod 10 has good elasticity, under expansion state, can form lampCaged form, i.e., the big structure in middle part small in ends, can nasal sinus affected part play well support and can be by annulus 11So that ventilation is smooth, described 10 one end of support rod is each attached on the annulus 11, becomes fixing end, inside the support rod 10For hollow structure, 10 shell of support rod is equipped with several capillary through holes 12, and the hollow inside of the support rod 10 is equipped with drug-loaded layer 31,The drug-loaded layer 31 is equipped with the drug for anti-inflammatory, and drug can be discharged by capillary through holes 12, contacts affected part, plays and disappearScorching effect, and capillary through holes 12 can also play long-time slow release, in this way, drug effect can be more preferable, outside the support rod 10Side is enclosed with hemostatic material 13, and hemostatic material 13 and capillary through holes 12 are staggered, and hemostatic material 13 will not influence releasing for drugIt puts, meanwhile, hemostatic material 13 is wrapped up on the outside of support rod 10, can be stopped blooding to affected part.
In the present embodiment, preferably, the support rod 10 and annulus 11 are degradable high polymer material, Ke YiIn some cycles, degrade in human body, for example, poly-lactic acid material, can finally degrade human body can antimetabolic agent, nontoxic nothingEvil.
In the present embodiment, preferably, with reference to Fig. 5-Fig. 6, nasal sinus bracket further includes delivery conduit 3, funnel 2 and pushDevice 4, the pusher 4 include connecting tube 40, casing 41 and push rod 42, and the push rod 42 is set in casing 41, the connectionPipe 40 is fixedly connected with casing 41, and connecting tube 40 is mutually communicated with casing 41, and 40 fitting of connecting tube connects delivery conduit 3On, it is detachably connected between the funnel 2 and delivery conduit 3, delivery conduit 3 is hollow conduit, and the funnel 2 is equipped with through-hole20, the through-hole diameter is equal with 11 diameter of annulus, in the compressible through-hole 20 being arranged into the funnel 2 of the rack body 1,Rack body 1 can be compressed completely into delivery conduit 3 by the through-hole 20, can will be compressed in conveying by pusher 4 and be ledRack body 1 in pipe 3 is sent to nasal cavity or nasal sinus affected part, after being sent to affected part, rack body 1 can be sent out to conveying completely and ledPipe 3, rack body 1 can be expanded automatically, expand into lantern-shaped form from cylindrical structure, affected part can effectively be supported, withNon-sticking company.
In the present embodiment, preferably, the rack body 1 is cylindrical structure under compression.
In the present embodiment, preferably, when the rack body 1 is compressed into through-hole 20, fixing end is towards through-hole20 outer ends, free end is towards inside through-hole 20, and to prevent when being delivered to affected part, free end is corrupted to affected part, and fixing end is solidSurely there is annulus 11, buffer function is played to release, affected part will not be corrupted to.
In the present embodiment, preferably, the delivery conduit 3 is pebax pipe.
In the present embodiment, preferably, the hemostatic material 13 is chitosan class hemostatic material, the safety in human bodyIt is nontoxic, can be degradable, degradation product can be absorbed by human-body safety.
In the present embodiment, it preferably, the rack body 1 is Lantern structure under expansion state, is expandingUnder state, rack body 1 is small in ends, and middle part is big, and middle part is 1 maximum diameter region of rack body, the diameter model in this regionEnclosing is size in order to adapt to most of human body nasal cavities or nasal sinus, which excessive cannot cause to destroy affected part, and cannot mistakeSmall to cause support effect bad, 1 maximum gauge range of rack body is 25-40mm,.
In the present embodiment, preferably, momestasone furoate, drug capacity can be used in the drug for anti-inflammatoryRange is 580-680 μ g.
In the present embodiment, preferably, 12 diameter range of capillary through holes is 10-25 μ g, allow to sufficientlyLong-term slow release is carried out to drug, allows affected part that can fully absorb drug, effect of drugs is more preferably effective.
The above content is only better embodiment of the invention, for those of ordinary skill in the art, according to the present inventionThought, there will be changes in the specific implementation manner and application range, and the content of the present specification should not be construed as to this hairBright limitation.