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36 results about "Right lacrimal sac" patented technology
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The lacrimal sac or lachrymal sac is the upper dilated end of the nasolacrimal duct, and is lodged in a deep groove formed by the lacrimal bone and frontal process of the maxilla.
Transnasal method and catheter for lacrimal system
A balloon catheter for treatment of a patient's lacrimal system is applied transnasally without the use of a guide wire or a curve retention member. The catheter uses a stainless steel hypotube of sufficient stiffness and column strength to be pushed from the patent's nasal cavity through an opening-formed through the lateral nasal wall and lacrimal fossa, into the lacrimal sac. The catheter has an inflatable member mounted about a rigid bent distal segment. The opening is first formed by pushing small holes through the medial sac, lacrimal fossa, and lateral nasal wall with an instrument and coalescing the holes. The catheter is then introduced into the nasal cavity and pushed laterally through the opening by manipulating its proximal end. Pressurized fluid is then applied to the catheter to inflate the inflatable member and dilate the opening.
Owner:BECKER BRUCE
Ophthalmic insert
A medical device for delivering medication to an eye includes a stent having a proximal end and a distal end, the proximal end includes a collarette configured to be secured against a punctum of the nasal lacrimal system, and the distal end includes an expandable pouch for storing the medication to be delivered to the eye. The stent has a length substantially equivalent to a length of a canaliculus that is joined to the punctum such that, when implanted, the expandable pouch of the medical device is disposed in the nasal lacrimal sac of the patient and the medication is thereafter released through an opening in the collarette. A mechanical pumping mechanism in the expandable pouch and / or a membrane covering the opening in the collarette may be provided to better control release of the fluid. The stent may also include anchoring pegs disposed on an exterior surface thereof that, when the device is implanted, contact an interior surface of the canaliculus. An inserter tool is also described.
Owner:FREILICH DAVID
Tear duct embolism
InactiveCN101120901AInhibit the inflammatory responseInhibit inflammationEye surgeryMedicineCurative effect
The present invention belongs to the medical instrument field, which discloses a lacrimal passages embolus comprising an embolus body. The fixing part of the embolus is connected with tail of the embolus body. The largest radial dimension of fixing part of the embolus is larger or equal to that of the embolus body in the lacrimal passages. During application, the fixing part of the embolus is contacted with inner wall of the lacrimal passages. The fixing part of the embolus locates the embolus body. The fixing part of the embolus avoids displacement and abscission of the embolus in the lacrimal passages as far as possible. In addition, size of the embolus body is designed according to tear lacking degree in the patient, therefore lacrimal passages blocking is formed in different degree. Purposes of treatment, improving therapy effect and reducing infection are realized by blocking or restricting the tears into the lacrimal sac. The fixing part of the embolus is elastic, which not only avoids excessive pressing of the lacrimal passages, but also provides more reliable positioning of the embolus body.
Owner:ZHONGSHAN OPHTHALMIC CENT SUN YAT SEN UNIV
Adjustable lacrimal passage stent
PendingCN107184295AImprove blood supplyNot easy to cause edemaStentsEye surgerySmooth muscleRight lacrimal sac
The invention relates to an adjustable lacrimal passage stent. The stent is composed of a side tube, a balloon threading tunnel, a balloon lateral expansion tube, a body stent lateral expansion tube, a valve water injection tube, a water injection needle, a balloon supporting inner container and a body stent supporting inner container. The side tube tail end is connected with the balloon lateral expansion tube which is connected with the balloon threading tunnel, the balloon lateral expansion tube is shaped like ellipsoid and wraps the outer side of the balloon supporting inner container, the balloon supporting inner container tail is connected with the body stent lateral expansion tube which is arranged on the outer side of the body stent supporting inner container in a sleeving mode, micro holes are uniformly formed in the surface of the body stent lateral expansion tube, and the body stent lateral expansion tube tail is connected with the valve water injection tube. The adjustable lacrimal passage stent has the advantages that the stent simulates the structure of a lacrimal passage and comprises a lacrimal point, a lacrimal sac and a nasolacrimal duct, the potential function of the lacrimal passage smooth muscle can be simulated, tissue edema of the lacrimal passage is not likely to be caused, blood supply of the lacrimal passage is enhanced, an inflammatory reaction of the lacrimal passage is relieved, and the effect of adjusting lacrimal passage expansion and contraction is achieved.
Owner:SHANGHAI TONGJI HOSPITAL
Lacrimal passage retain tube
PendingCN106983596AAvoid self prolapseAvoid the situationEye surgeryMedical devicesRight lacrimal sacEngineering
The invention relates to the field of ophthalmology department medical apparatuses and instruments, and provides a lacrimal passage retain tube. The lacrimal passage retain tube comprises a tube body and a sleeve. The tube body is sleeved with the sleeve. The sleeve is matched with the upper portion of the tube body. The sleeve comprises a sleeve body and a clamping piece. The clamping piece is arranged at the upper end of the sleeve body. The lacrimal passage retain tube has the advantages that the tube body and the sleeve are matched for use, the tube body enters a lacrimal sac through the lacrimal ductule and is fixed to the margo palpebrae through the clamping piece, the phenomenon that the lacrimal passage retain tube automatically comes off or exits back to the lacrimal passage is avoided, meanwhile, the patient retention period comfort level of the lacrimal passage retain tube is improved, and the adaptive phase is shortened; the lacrimal passage retain tube is directly removed from upper and lower lacrimal points after the lacrimal passage implantable tube retention and does not need to be removed through a nasal cavity, and the lacrimal passage retain tube is convenient to disassemble and easy and convenient to implement, and meanwhile avoids clinic complications; the lacrimal passage retain tube is simple in structure, simple in manufacturing technology and easy to produce.
Owner:张建辉
Auxiliary lacrimal duct
The invention provides an auxiliary lacrimal duct. The auxiliary lacrimal duct is used for communicating the nasal cavity with the lacrimal sac. The auxiliary lacrimal duct comprises a duct body and a positioning element, the rear end of the duct body penetrates through the nasal cavity mucous membrane, the bone wall and the lacrimal sac mucous membrane so that the nasal cavity can be communicated with the lacrimal sac; the positioning element is arranged at the front end of the duct body and clamped onto the lacrimal sac mucous membrane. The duct body is used for communicating the nasal cavity with the lacrimal sac, and the purpose that tears in the lacrimal sac flow into the nasal cavity can be achieved.
Owner:3D GLOBAL BIOTECH
Surgical operation method
InactiveCN111110547AGuaranteed cleanlinessContinuous cleaningEye surgeryEnemata/irrigatorsSurgical operationLower lacrimal punctum
The invention discloses a surgical operation method. A pupil and embolus fixing part are included, wherein a lacrimal gland catheter is mounted above a pupil; a lacrimal gland is mounted above the lacrimal gland catheter; an upper lacrimal punctum is mounted above one side of the pupil; an angle of eye medial is mounted below one side of the pupil; a lower lacrimal punctum is mounted on one side of the angle of eye medial; a main lacrimal duct is mounted on one side of the middle of the pupil; the main lacrimal duct is internally provided with a lacrimal sac; a naso-lacrymal duct is arranged inside the lacrimal sac; a silicone tube is arranged inside the naso-lacrymal duct; and the embolus fixing part is positioned below the silicon tube. By adopting the operation method, dirt accumulatedin a lacrimal passage cavity can be sufficiently flashed out from inside to outside, continuous cleanliness of the lacrimal passage cavity can be maintained, lacrimal passage inflammation reactions can be alleviated, the lacrimal passage cavity can be prevented from re-occurrence of adhesion and sealing, and thus the treatment effect can be improved.
Owner:姚培好
Catheter for lacrimal passage
The invention relates to a catheter for a lacrimal passage. The catheter comprises a lacrimal sac part and a naso-lacrymal duct, wherein the lacrimal sac part is located at the upper end of the naso-lacrymal duct and comprises at least three elastic wires. The lower ends of the elastic wires are fixedly connected with the upper end of the naso-lacrymal duct, while the upper ends of the elastic wires are fixedly connected with a fixed ring, and drainage gaps are formed between the adjacent wires. The elastic wires are metal wires which are arc-shaped, and a silica gel layer is formed on the surface of each elastic wire. With the adoption of the catheter for the lacrimal passage in the structure, the lacrimal sac part is made of memory metals. When the lacrimal sac part is implanted, the elastic wires are extruded by the lacrimal passage to be straightened, so that the catheter is easier to implant, and pain of the patient is less. When the lacrimal sac part reaches the lacrimal sac of the human body, the elastic wires are recovered to the original expanded state to effectively dilate the lacrimal sac part without irritating the mucosa. The catheter for the lacrimal passage has a very good drainage effect, and tear is introduced to the naso-lacrymal duct through the drainage gaps among the elastic wires, so that the catheter drains thoroughly and no residual tear is left in the lacrimal sac.
Owner:潘东艳
Nursing lacrimal passage flushing fluid for infantile dacryocystitis and preparation method of flushing fluid
InactiveCN105362533AResolve stimulusQuick effectSenses disorderPharmaceutical delivery mechanismLycopus lucidusSide effect
The invention discloses a nursing lacrimal passage flushing fluid for infantile dacryocystitis and a preparation method of the flushing fluid. The flushing fluid is prepared from the following active pharmaceutical ingredients in parts by weight: sida acuta, semen lepidii, polygonum hydropiper, Chinese mosla herb, rhizoma bolbostematis, nephelium lappaceum, ganoderma, leaf and twig of nakedflower beautyberry, platycodon grandiflorum, all-grass of Chinese Ixeris, philippine violet herb, syneilesis aconitifolia, all-grass of delavay pararuellia, purslane seed, radix gentianae macrophyllae, herb of flannel mullein, lycopus lucidus, selfheal, sappan wood, lysimachia congestiflora Hemsl., rhizoma homalonemae and chestnut endocarp. The flushing fluid and the preparation method have the benefits that the efficacies of promoting evacuation of secretions in lacrimal sac, and thoroughly removing purulent or mucous secretions are promoted, the problem that the conventional lacrimal passage flushing fluid is irritant to eyes can be solved, and the advantages such as high efficiency, high effective rate, exact treating effect, short treating course, zero toxic or side effect, and low price are achieved.
Owner:许立华
Tear duct embolism
InactiveCN101120901BInhibit the inflammatory responseInhibit inflammationEye surgeryGynecologyCurative effect
Owner:ZHONGSHAN OPHTHALMIC CENT SUN YAT SEN UNIV
Air-injection type lacrimal stent supporting device
The invention relates to an air-injection type lacrimal stent supporting device. The lacrimal stent supporting device comprises a lacrimal stent and an air-injection needle. The lacrimal stent comprises an upper lacrimal ductule part, a lower lacrimal ductule part, a lacrimal sac part, a nasolacrimal duct part and an air-injection hole; the upper lacrimal ductule part and the lower lacrimal ductule part are both of a hollow structure and are communicated with the lacrimal sac part; the lacrimal sac part is communicated with the nasolacrimal duct part; one end of the nasolacrimal duct part is communicated with the lacrimal sac part, and the air-injection hole is formed in the other end of the nasolacrimal duct part. The air-injection needle comprises an air-injection needle body, an air-injection cylinder, an LED lamp, a piston and an LED lamp switch. The air-injection type lacrimal stent supporting device has the advantages that by adjusting the thickness of the stent, inflammatory substances in a lacrimal passage are helped to be washed, and the functions of the sphincter of the lacrimal passage are exercised; the operation is simple and convenient, a patient can operate the supporting device by himself / herself at home, the medical cost is greatly reduced, the epiphora state of the patient can be better improved, the life quality of the patient is improved, and meanwhile, therecurrence rate of obstruction of the lacrimal passage is reduced.
Owner:SHANGHAI TONGJI HOSPITAL
Adjustable expansion three-cavity two-bag lacrimal passage catheterization tube for lacrimal passage blockage
The invention relates to an adjustable expansion three-cavity two-bag lacrimal passage catheterization tube for lacrimal passage blockage. The three-cavity two-bag lacrimal passage catheterization tube comprises a side tube, a lacrimal passage main support catheter, a wire passing tunnel, an expandable ball bag, an inner and outer tube tight connection position, an expendable ball post, a ball bagwater injection fine tube, a ball post gas injection fine tube, and a ball post gas injection tube fixing loop, wherein the expandable ball bag surrounds the upper section of the lacrimal passage main support catheter; the expendable ball post surrounds the lower section of the lacrimal passage main support catheter; the inner and outer tube tight connection position is arranged between the expandable ball bag and the expandable ball post. The adjustable expansion three-cavity two-bag lacrimal passage catheterization tube for lacrimal passage blockage has the advantages that the ball bag sizein the lacrimal sac part can be regulated in an individualized way according to the lacrimal sac size of a patient; the lacrimal passage catheterization tube is stabilized; the falling is prevented;meanwhile, the ball post in the lacrimonasal duct position can be regularly moved and expanded; the loose adhesion tissues can be reduced; the lacrimonasal duct position blockage condition is relieved; the functions of lacrimal passage sphincter muscle is trained; the operation is simple; convenience and fast are realized; the epiphora state of the patient can be better avoided; the life quality of the patient is improved.
Owner:SHANGHAI TONGJI HOSPITAL
Lacrimal drug delivery device
ActiveUS20190274877A1Increased and decreased activityImprove biological activitySenses disorderPharmaceutical delivery mechanismRight lacrimal sacDrug delivery
A lacrimal drug delivery device includes a reservoir configured to hold a drug. The reservoir is moveable between a relaxed state and an expanded state. A connector is fluidly coupled to the reservoir and a lumen is formed in the connector wherein the drug is configured to flow from the reservoir to an delivery site through the lumen. A hydrogel is within the lumen and configured to absorb the drug from the reservoir and deliver the drug from the lumen at the delivery site. The hydrogel includes a first section which absorbs the drug at a first rate of absorption. A delivery guide is detachably coupled to the reservoir to deliver the reservoir into a lacrimal sac of a patient.
Owner:UNIV OF COLORADO THE REGENTS OF
Insert for the treatment of dry eye
InactiveUS20090041828A1Material efficiencyImprove the level ofSenses disorderEye surgeryRight lacrimal sacCornea
Owner:PHARMA STULLN GMBH
Self-expanding microsphere for lacrimal sac expansion and preparation method thereof
PendingCN113845630AIncrease horizontal distanceGood biocompatibilityEye surgeryMicrosphereNasal Cavity Epithelium
The invention discloses a self-expanding microsphere for lacrimal sac expansion and a preparation method thereof. According to the skin expansion principle, the self-expanding microspheres are implanted into the lacrimal sac in an injection mode in the early stage of an operation, the microspheres absorb water in the lacrimal sac to expand and maintain the expansion state for a certain time, the lacrimal sac is expanded, and after the size of the lacrimal sac meets the operation requirement, a lacrimal sac and nasal cavity anastomosis operation under an endoscope is carried out, meanwhile, the microspheres in the lacrimal sac are taken out, and the self-expanding microspheres have good biocompatibility and certain mechanical property, can expand to 5 mm or above after absorbing water in the lacrimal sac and maintain the expansion state for a certain time, so that the effect of expanding the horizontal distance of the lacrimal sac is achieved.
Owner:THE EYE HOSPITAL OF WENZHOU MEDICAL UNIV +1
Dacryocyst and nasal cavity anastomosis scissors
The invention discloses a pair of dacryocyst and nasal cavity anastomosis scissors comprising a first scissor body and a second scissor body which are crossly hinged together, wherein a handle part of the first scissor body is provided with a first finger ring; a handle part of the second scissor body is provided with a second finger ring; a head part of the first scissor body is provided with a first knifepoint bending towards a direction close to a head part of the second scissor body; the head part of the second scissor body is provided with a second knifepoint; and the bending direction of the second knifepoint is the same as that of the first knifepoint. The pair of dacryocyst and nasal cavity anastomosis scissors disclosed by the invention has the advantages of being simple in structure, convenient in use, capable of smoothly entering an operation position to accurately perform shearing, and the like.
Owner:湖南友宏医疗科技有限公司
Operating knife used for nasal cavity dacryocystotomy with nasal endoscope
InactiveCN107736919AEfficient flipIncrease success rateEndoscopic cutting instrumentsNasal cavityStoma
The invention relates to a nasal cavity scalpel, in particular to a nasal cavity scalpel for cutting the lacrimal sac of the nasal cavity, and belongs to the technical field of medical instruments. The endoscopic nasal cavity dacryocystectomy scalpel comprises a knife handle 1 and a knife head 2 mounted on one end of the knife handle 1. The knife head 2 is sickle-shaped and curved to the coronal plane. There are 3 knife points on the knife head 2 Upturned in the sagittal plane. The scalpel can cut any point on the inner wall of the lacrimal sac without damaging the outer wall of the lacrimal sac when cutting the inner wall of the lacrimal sac. It can also cooperate with the uncinate sickle knife to cut out the ideal shape of the lacrimal sac mucosal flap, open a large lacrimal sac nasal cavity, and effectively flip the mucosal flap, which is beneficial to prevent stoma atresia or stenosis, and greatly improve the lacrimal sac lacrimal sac in nasal endoscopy. Ostomy success rate.
Owner:常州市斯博特医疗器械有限公司
Lacrimal sac expansion air bag for improving success rate of lacrimal sac and nasal cavity anastomosis operation
PendingCN114602039AStable materialUnbreakableBalloon catheterEye surgeryNasal Cavity EpitheliumThin membrane
Owner:THE EYE HOSPITAL OF WENZHOU MEDICAL UNIV
Tools and methods for dacryocystorhinostomy
Embodiments of the present invention provide methods for performing dacryocystorhinostomy and an apparatus for performing dacryocystorhinostomy (DCR), the apparatus comprising a dacryocystorhinostomy (DCR) tool, which includes a perforating shaft having a distal perforating-shaft perforating tip configured to form a bypass between a lacrimal sac and a nasal cavity through a lateral side of the lacrimal sac, a lacrimal bone, and nasal mucosa and a DCR guide, which includes a nasal guide component, which is configured to be inserted into the nasal cavity and has a nasal-guide channel having a proximal opening and an at least partially laterally facing distal opening, and a lacrimal guide component, which is shaped so as to define a lacrimal-guide channel that is configured to orient the distal perforating-shaft perforating tip with respect to the DCR guide during advancing of the distal perforating-shaft perforating tip through a lacrimal passageway and into the lacrimal sac, until the distal perforating-shaft perforating tip at least crosses the laterally facing distal opening of the nasal guide component, and wherein the DCR guide is configured to constrain the laterally facing distal opening of the nasal guide component to fall in a path of advancement of the distal perforating-shaft perforating tip.
Owner:TEARFLOW CARE LTD
Nasal cavity-lacrimal sac fistulation instrument
InactiveCN101574276ADoes not affect normal useClear visionEye surgerySurgeryNasal cavitySurgical operation
The invention provides a nasal cavity-lacrimal sac fistulation instrument with easy surgical operation and convenient use, and belongs to medical appliances. The nasal cavity-lacrimal sac fistulation instrument comprises a puncturing lever; the rear end of the puncturing lever is connected with a hand-held machine, while the front end is connected with a security ring; and the security ring is connected with a triangular puncture outfit which has a taper structure. The nasal cavity-lacrimal sac fistulation instrument is used for chronic dacryocystitis intranasal endoscopic nasal cavity-lacrimal sac re-dredging operations, can be operated in small nasal cavities and does not influence the use of a nasal endoscope so as to have clear visual field and ensure the smooth completion of the operations.
Owner:庞宗领
An eye model device for simulating lacrimal duct flushing
Owner:PEOPLES HOSPITAL OF HENAN PROV
Drainage device for lacrimal sac operation
InactiveCN101972494BSolve the shortcomings that are not convenient to placeEasy to put inStentsEye surgeryGynecologyLacrimal canaliculi
The invention discloses a drainage device for a lacrimal sac operation, comprising a drainage tube. The drainage tube is connected with an implanting tube which is internally provided with a metal rod at one end, a sphere is arranged at one end of the metal rod, the drainage tube is provided with a base, a tube body is arranged in the middle of the base and forms an inclined angle relative to thebase so that the tube body is in an arc shape, the center part of the tube body is provided with a drainage cavity, the tube body has an inclined top end surface, the drainage cavity has an elliptical top end, the outer wall of the tube body is the shape of a column formed by a high outer wall and a lower outer wall, the size defined by the long axis and the short axis of the inclined surface in a range of 360 degrees is larger than the outer wall diameter of the tube body, a first through hole is arranged at the upper part of the high outer wall of the tube body, the implanting tube is mounted in the first through hole, and one end of the implanting tube, which is provided with the metal rod, penetrates through a second through hole on the base. The invention is suitable for the drainagetreatment on patients with a nasolacrimal canal obstruction syndrome, chronic dacryocystitis syndrome, and the like accompanied with lacrimal canaliculi obstruction syndrome through whole lacrimal passage intubation.
Owner:SHANDONG KAISITE MEDICAL APP & INSTR
Tools and methods for dacryocystorhinostomy
Owner:蒂法洛护理公司
Lacrimal passage flushing model
ActiveCN114446131AEasy to judgeCosmonautic condition simulationsEducational modelsCanaliculus lacrimalisOphthalmology department
The invention discloses a lacrimal passage flushing model, relates to the field of nursing teaching models, and provides an ophthalmology department lacrimal passage flushing model capable of presenting different blockage conditions of a lacrimal passage. The model comprises a simulated lacrimal passage and a main control device, the simulated lacrimal passage comprises an upper lacrimal punctum, an upper lacrimal ductule, a lower lacrimal punctum, a lower lacrimal ductule, a lacrimal duct, a lacrimal sac and a nasolacrimal duct, the lacrimal sac is connected to the upper end of the nasolacrimal duct, one end of the lacrimal duct is connected with the upper lacrimal ductule and the lower lacrimal ductule, the other end of the lacrimal duct is connected with the nasolacrimal duct and is close to the lacrimal sac, and the upper lacrimal punctum is located at the end of the upper lacrimal ductule. The lower lacrimal punctum is positioned at the end part of the lower lacrimal ductule; the upper lacrimal ductule, the lower lacrimal ductule, the lacrimal duct and the nasolacrimal duct are respectively provided with a pipe controller for controlling the opening and closing of a pipeline; and the main control device can enable each pipe controller to work. According to the invention, the conditions of normal lacrimal passage, blockage, stenosis, dacryocystitis and false passage puncture of lacrimal canaliculi can be simulated, so that various lacrimal passage flushing phenomena in the background technology are presented in teaching, and learning of students is facilitated.
Owner:WEST CHINA HOSPITAL SICHUAN UNIV
Artificial nasolacrimal canal
ActiveCN101803963ASolve the problem of untreatable diseases caused by blockageEasy to operateTubular organ implantsDiseaseCanaliculus lacrimalis
The invention provides an artificial nasolacrimal canal, belongs to the technical field of medicine, and solves the problems that canaliculus lacrimalis cannot be lead in the conventional artificial nasolacrimal canal, and implant surgery is single. The artificial nasolacrimal canal comprises a drainage main tube; an upper part of the drainage main tube is provided with a plurality of strip-type fixing flaps which are bent towards into an arc shape and have elasticity; and the fixing flaps are provided with a tubular drainage branch pipe which can penetrate into the canaliculus lacrimalis, and the drainage branch pipe is communicated with the drainage main tube. When the artificial nasolacrimal canal is used for curing a disease of the nasolacrimal canal and a lacrimal sac, the problem that the disease cannot be cured because of canaliculus lacrimalis blockage is solved; the artificial nasolacrimal canal has the advantages of simple, convenient and safe operation of the implant surgery, diversity of available operation modes, wide indication and obvious curative effect; and the artificial nasolacrimal canal has an integrated structure so as to improve soundness and increase safety factor and prolong service life.
Owner:ZHEJIANG HUAFU MEDICAL EQUIP
Lacrimal passage valve probing and expanding instrument
The invention discloses a lacrimal passage valve probing and expanding instrument, and belongs to the technical field of medical instruments. The instrument comprises a lacrimal point dilator body with a lacrimal point sleeve, a soft lacrimal passage probe with a dilating balloon and a soft lacrimal passage flusher. By means of the mode, the lacrimal point can be expanded in one step according toneeds, due to the lacrimal point sleeve, the lacrimal point hidden in the inner canthi is obvious, repeated traction, lacrimal point finding and other operations are not needed, and the lacrimal pointcan enter the lacrimal passage conveniently. The soft lacrimal passage probe cannot apply excessive force during probing, a false passage is not easy to form, the probe has obvious flexibility and can move downwards along a narrow cavity of the lacrimal passage to prevent iatrogenic false passage, and the dilating balloon can greatly dilate Hasner valve obstruction of the lower opening of the nasolacrimal duct, meanwhile, the soft lacrimal passage flusher can flush pus in a lacrimal sac and harmful substances such as valve probing bleeding, lacrimal passage damage caused when an infant struggles is avoided, operation time is shortened, tissue damage is reduced, and the curative effect is guaranteed.
Owner:永康市第一人民医院
Duct For Tear Flow
InactiveUS20160324689A1Easy to fixImprove fastnessEye surgeryWound drainsRight lacrimal sacLacrimal sac mucosa
A duct for tear flow, for connecting the nasal cavity and the lacrimal sac, comprises: a tube, which is set across the nasal mucosa, nasal bone wall and lacrimal sac mucosa, so that the nasal cavity and the lacrimal sac are connected; a positioning element, set on the front of the tube, and fastened on the lacrimal sac mucosa; so that tears flow into the nasal cavity due to a connection between the nasal cavity and the lacrimal sac.
Owner:3D GLOBAL BIOTECH
Tools and methods for dacryocystorhinostomy
A dacryocystorhinostomy (DCR) tool (10) includes a perforating shaft (30) having a distal perforating tip (32) configured to form a bypass between a lacrimal sac and a nasal cavity through a lateral side of the lacrimal sac, a lacrimal bone, and nasal mucosa. A DCR guide (20) includes a nasal guide component (40) configured to be inserted into the nasal cavity and having a distal guide tip (42); and a lacrimal guide component (50) shaped so as to define a guide channel (52) that orients the DCR guide (20) with respect to the distal perforating tip (32) during advancing of the distal perforating tip (32) through a lacrimal passageway and into the lacrimal sac, until contact of the distal perforating tip (32) with the distal guide tip (42) blocks further advancing of the distal perforating tip (32). The DCR guide (20) constrains the distal guide tip (42) to fall in a path of advancement of the distal perforating tip (32). Other embodiments are also described.
Owner:TEARFLOW CARE LTD
Drainage device for lacrimal sac operation
InactiveCN101972494ASolve the shortcomings that are not convenient to placeEasy to put inStentsEye treatmentGynecologyLacrimal canaliculi
The invention discloses a drainage device for a lacrimal sac operation, comprising a drainage tube. The drainage tube is connected with an implanting tube which is internally provided with a metal rod at one end, a sphere is arranged at one end of the metal rod, the drainage tube is provided with a base, a tube body is arranged in the middle of the base and forms an inclined angle relative to the base so that the tube body is in an arc shape, the center part of the tube body is provided with a drainage cavity, the tube body has an inclined top end surface, the drainage cavity has an elliptical top end, the outer wall of the tube body is the shape of a column formed by a high outer wall and a lower outer wall, the size defined by the long axis and the short axis of the inclined surface in a range of 360 degrees is larger than the outer wall diameter of the tube body, a first through hole is arranged at the upper part of the high outer wall of the tube body, the implanting tube is mounted in the first through hole, and one end of the implanting tube, which is provided with the metal rod, penetrates through a second through hole on the base. The invention is suitable for the drainage treatment on patients with a nasolacrimal canal obstruction syndrome, chronic dacryocystitis syndrome, and the like accompanied with lacrimal canaliculi obstruction syndrome through whole lacrimal passage intubation.
Owner:SHANDONG KAISITE MEDICAL APP & INSTR
Lacrimal valve probing and expanding device
ActiveCN111920577BAvoid it happening againAvoid damageEye surgeryBathing devicesDilatorLacrimal cannula
The invention discloses a lacrimal valve probing and expanding device, which belongs to the technical field of medical devices. It includes: punctal dilator with punctal cannula, soft lacrimal duct probe with dilation balloon and soft lacrimal duct irrigator. Through the above method, the present invention can make the puncta expand as needed in one step, and because of the existence of the punctal cannula, the puncta hidden in the inner canthus is obvious, and there is no need to repeatedly pull and search for the puncta to enter the lacrimal duct. convenient. The soft lacrimal duct probe cannot apply too much force when probing, and it is not easy to form a false tract. Because the probe has obvious flexibility, it can descend along the narrow lacrimal duct to prevent the generation of iatrogenic false ducts and expansion. The balloon can greatly expand the obstruction of the Hasner valve in the lower mouth of the nasolacrimal duct, and the soft lacrimal duct irrigation device can flush out the pus in the lacrimal sac and the harmful substances such as valve probing bleeding, and avoid damage to the lacrimal duct when infants and young children struggle. , reduce operation time, reduce tissue damage, and ensure curative effect.
Owner:永康市第一人民医院
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