Patents
Literature
30 results about "Urethral stent" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Urethral stent placement is a procedure to open a blockage or stricture (narrowing) of your urethra. The urethra is the tube that carries urine from your bladder out of your body. A stent is a small plastic or metal tube used to open your narrowed urethra.
Prosthesis having a sleeve valve
Disclosed is a pressure sensitive prosthesis that includes a tubular member having a passageway extending therethrough and a sleeve attached about one end of the tubular member. The sleeve functions as a one-way valve to permit fluid flowing through the sleeve lumen in a first direction and under a first pressure, while collapsing in response to fluid flowing in a second direction when the pressure thereof exceeds that of the first direction or pressure. One aspect of the invention includes an esophageal anti-reflux expandable prosthesis wherein the sleeve is adapted to invert back through the tubular stent frame to permit belching or vomiting (fluid or materials under a third, significantly higher pressure). Another aspect of the invention includes a tubular drainage stent, such as a biliary or urethral stent in which the sleeve opens to permit passage of fluids, then collapses to prevent retrograde flow.
Owner:COOK MEDICAL TECH LLC
Ureteral stent with end-effector and related methods
InactiveUS6949125B2Decreased fluid retentionMinimizing patient discomfortBalloon catheterSurgeryUrethraControl release
A system and related methods for maintaining the patentcy of the ureter comprising a pusher tube having a pusher tube lumen and an inflate lumen disposed within a wall of the pusher tube and a urinary stent having a proximal and distal portions with an elongated body portion therebetween configured to fit the ureter of the patient and defining a lumen. The system further includes an end-effector that may comprise an inflatable balloon positioned at the proximal portion of the urinary stent for retaining the proximal portion in the urinary bladder. At the distal portion, a retention end-piece is positioned for retaining the distal portion of the stent in the renal pelvis. The end-effector and the retention end-piece of the stent maintain the elongated body portion in situ. The end-effector may also include an inflatable balloon and may contain pharmaceutical or biologic agents for controlled release into the bladder.
Owner:BOSTON SCI SCIMED INC
Mesh tape with wing-like extensions for treating female urinary incontinence
A urethra support having an elongated mesh tape portion and a mesh extension affixed to the tape portion transverse thereto. In accordance with a method of the invention, the urethra support is inserted into the lower pelvic cavity of a patient with the tape portion forming a sling extending beneath and supporting the urethra of the patient. In this position, the tape portion is generally perpendicular to the urethra. The extension is inserted into the peri-urethral fascia along at least a portion of the length of the urethra. This induces the formation of scar tissue proximate the extension, with the scar tissue eventually contracting thereby compressing the urethra.
Owner:ETHICON INC
Self-adjusting endourethral device & methods of use
InactiveUS20100241240A1Permit urinationFacilitate urinationGuide needlesWound drainsUrethraUrethral stent
A self adjusting and / or positioning indwelling urethral device is provided. The device generally includes a prostatic urethral stent body and a urethral anchoring element. The prostatic urethral stent body includes a preconfigured end portion for anchored receipt within a bladder with the urethral anchoring element extending from the prostatic urethral stent body via a linkage. Engagement of the proximal anchor, delimited by the preconfigured end portion of the stent body, with the bladder is no or minimal impact upon the trigone region.
Owner:ABBEYMOOR MEDICAL INC
Ureteral stent with end-effector
InactiveUS8007540B2Less irritatingReduce retentionBalloon catheterEar treatmentUrethraControl release
A system and related methods for maintaining the patentcy of the ureter comprising a pusher tube having a pusher tube lumen and an inflate lumen disposed within a wall of the pusher tube and a urinary stent having a proximal and distal portions with an elongated body portion therebetween configured to fit the ureter of the patient and defining a lumen. The system further includes an end-effector that may comprise an inflatable balloon positioned at the proximal portion of the urinary stent for retaining the proximal portion in the urinary bladder. At the distal portion, a retention end-piece is positioned for retaining the distal portion of the stent in the renal pelvis. The end-effector and the retention end-piece of the stent maintain the elongated body portion in situ. The end-effector may also include an inflatable balloon and may contain pharmaceutical or biologic agents for controlled release into the bladder.
Owner:BOSTON SCIENTIFIC SCIMED INC
Delivery system and urethra stent for enlarged prostates and method
A device for placing, positioning and / or removing a stent within the urethra of a patient obstructed by an enlarged prostate positioned by use of ultrasound comprising a flexible stent inserter having a shaft of a length and size to be inserted within the urethra and extend to the bladder, with a balloon positioning tip distally mounted proximate an expandable securing segment onto which a stent is mounted; the balloon selectively inflated with air or liquid if a contrasting media is required for ultrasound location or with a liquid to unblock obstructed urethra segments, and the securing segment selectively inflated with a liquid to secure during positioning and deflated to release the stent in position to inflate the expandable securing segment to hold the stent during positioning and insertion, and in a second mode deflates the securing segment and positioning tip to release the stent within the urethra to allow the flexible stent inserter to be withdrawn and allow urine to pass through the stent.
Owner:SCHANZ V
Urethral stent for the prostate
A urethral stent for the prostate including a first stent section placed into an upper portion of the urethra passing through the prostate, a second stent section placed into a lower portion of the urethra below a urinary sphincter muscle, the first and second stent sections being formed of a shape-memory alloy wire, and at least one connection filament is provided at a middle portion of the urethra passing through the urinary sphincter muscle so as to connect the first and second stent sections, thereby preventing the stent from moving to the upper or lower portions of the urethra.
Owner:TAEWOONG MEDICAL CO LTD +1
Urethral Stent System and Method
A urethral stent device comprising a mechanical valve system is provided. The urethral stent device can be delivered up through the urethra via a flexible delivery tool. The valve mechanism is adapted to open when exposed to a certain amount of intraluminal pressure and can remain open until a desired cessation of fluid flow is achieved.
Owner:BOSTON SCI SCIMED INC
Biodegradable macromolecule urethra repairing support and preparation method thereof
InactiveCN103170007AGood biocompatibilitySimple preparation processStentsTubular organ implantsEpitheliumBiocompatibility Testing
The invention discloses a biodegradable macromolecule urethra repairing support. The biodegradable macromolecule urethra repairing support is characterized by being a tissue engineering support with a tubular appearance shape and being prepared from macromolecular materials which can be completely biodegraded, the support is soft and has toughness, the microstructure of the support is a porous three-dimensional space, the average pore size is 20-200 microns, the support has good biocompatibility, and cells can be planted. The invention also discloses a preparation method of the biodegradable macromolecule urethra repairing support. The prepared urethra repairing support shows certain rigidity and necessary toughness, can endure strong tensile force, and is conducive to restoration of the shape of the support when being extruded and has good biocompatibility, and urethra mucous epithelium cells can be adhered and propagated on the support. According to the prepared urethra repairing support, residual of organic solvents and pore-foaming agents sare avoided, biological assessment is safer, a preparation process is simpler and more convenient, cost is lower, and the prepared urethra repairing support is more applicable to clinical application.
Owner:SHANGHAI NAT ENG RES CENT FORNANOTECH
Urethral stent for the prostate
A urethral stent for the prostate including a first stent section placed into an upper portion of the urethra passing through the prostate, a second stent section placed into a lower portion of the urethra below a urinary sphincter muscle, the first and second stent sections being formed of a shape-memory alloy wire, and at least one connection filament is provided at a middle portion of the urethra passing through the urinary sphincter muscle so as to connect the first and second stent sections, thereby preventing the stent from moving to the upper or lower portions of the urethra.
Owner:TAEWOONG MEDICAL CO LTD +1
Lumen stent capable of conducting development absorption and preparation method and application thereof
ActiveCN105148330AHigh mechanical strengthGood grip rebound performanceSurgeryCoatingsUrethraInsertion stent
The invention discloses a lumen stent capable of conducting development absorption. The lumen stent is characterized in that the lumen stent is of a hollow tubular structure and made ofacyl amino polysaccharide, the outer surface of the tubular structure is provided with a development coating, and the tube wall is provided with or not provided with a transparent hole structure or a pattern structure. The lumen stent can be used as a blood vessel stent, a biliary stent or a urethral stent and is used for treating narrowing of the blood vessel, the bile duct and the urine tube cavity, capable of conducting development, capable of being degraded and absorbed in a human body, the situation that the lumen stent stays in the body for a long time can be avoided, and the lumen stent has wide market prospect.
Owner:青岛健康海洋生物制药有限公司
Urethral stent reducer
An apparatus for compressing a coiled stent having at least one protrusion, such as an enlarged coil disposed at the end of the stent, has a mandrel insertable into a lumen of the stent for holding the stent by friction and a coil compressor coupled to the mandrel. The mandrel is rotatable on an axis relative to the coil compressor and the coil compressor has a tab extending therefrom towards the mandrel. A stent is placed on the mandrel with the enlarged coil extending toward the coil compressor. The tab presses the enlarged coil inwardly toward the lumen of the stent when the mandrel is rotated relative to the coil compressor.
Owner:ADVANCED TECH & REGENERATIVE MEDICINE
Biodegradable composite type tubular urethral stent and preparation method
The invention provides a biodegradable composite type tubular urethral stent and a preparation method. By the biodegradable composite type tubular urethral stent and the preparation method, the shortcomings that the using quantity of the existing patch materials is limited and complications are easily caused on sampled portions are overcome. The biodegradable tissue engineering stent comprises an inner layer and an outer layer, wherein the inner layer is tubular; the outer layer is arranged on the outer surface of the inner layer; the inner layer and the outer layer are made of degradable high polymer materials and acellular stromata; the degradable high polymer materials are polylactic acid- polylactic-co-glycolic acid (PLGA) films; the acellular stromata are small intestinal submucosa (SIS) films; and the polylactic acid- polylactic-co-glycolic acid (PLGA) films and the small intestinal submucosa (SIS) films are connected to one another. By the biodegradable composite type tubular urethral stent, autologous sampling is not required during urethral canal compounding and reestablishment, and the complications which are possibly caused on the sampled portions are avoided.
Owner:金华市人民医院
Urethral stent system and method
A urethral stent device comprising a mechanical valve system is provided. The urethral stent device can be delivered up through the urethra via a flexible delivery tool. The valve mechanism is adapted to open when exposed to a certain amount of intraluminal pressure and can remain open until a desired cessation of fluid flow is achieved.
Owner:BOSTON SCI SCIMED INC
Prostate urethral stent with recovery structure
PendingCN113197707AShorter payback timeReduce surgical riskStentsUrethraeSurgical riskUrethral stent
The invention relates to the field of urinary system medical instruments, in particular to a prostate urethral stent with a recovery structure, the stent is woven into a spring-shaped structure by metal wires, the stent is composed of a long straight section, an expansion section and the recovery structure, and the recovery structure is located at the tail end of the stent. According to the recovery structure, a recovery part can be observed more easily during recovery of the stent, clamping is more convenient during operation, a doctor can position and clamp the recovery part of the stent more easily during recovery of the stent, the recovery time of the stent is greatly shortened, the surgical risk is greatly reduced, the recovery efficiency of the stent is improved, and the burden of the doctor and a patient is reduced.
Owner:上海星伙医疗科技有限公司
Prostatic urethral stent
A prostatic urethral stent for the nonsurgical regulation of prostatic urethral flow is provided. The prostatic urethral stent has a tubular body terminating in opposing, cone-shaped ends. The prostatic urethral stent is dimensioned and adapted for transurethral insertion into the lumen of the internal urethra sphincter so as to be retained therein by the constrictive forces of the internal urethra sphincter and / or enlarged, surrounding prostate. The cylindrical opening of the tubular body facilitates the urethral flow through the prostatic urethra, wherein the cylindrical opening is maintained by the strength of the tubular body, while the retention of the tubular body is a balance of the constrictive forces of the prostatic urethra and the stiffened shape of the tubular body.
Owner:MCNAB SR BRUCE GORDON
Degradable composite urethral stent
The invention discloses a degradable composite urethral stent. The degradable composite urethral stent comprises a first stent, a second stent and support rods, wherein a frame is arranged on the first stent, the frame is connected with a support net, a sleeve net is arranged on the support net, first support columns are mounted on the frame, the first support columns are connected with second support columns, support strips are mounted on the second support columns, the first stent is arranged at the left side of the second stent, the second stent is connected with a third stent, a urethral catheterization head is arranged at the right side of the third stent, side long holes are formed in the urethral catheterization head, the support rods are arranged on the frame, and connecting stripsare arranged on the second stent. The degradable composite urethral stent has the advantages that the urethral catheterization head at the front end of the third stent is configured to be of a truncated cone shape, and the area of the front end of the truncated cone shape is reduced, thereby facilitating the insertion of the urethral stent during a surgery; and six groups of side long holes are formed in the urethral catheterization head, thereby facilitating discharge of urine and secretions.
Owner:SHENGJING HOSPITAL OF CHINA MEDICAL UNIV
Urethral stent pipe used after hypospadias operation
The invention discloses a urethral stent pipe used after a hypospadias operation. The urethral stent pipe includes an inner pipe, one end of the inner pipe is placed into the bladder of a child patient, the outer edge of the inner pipe is sleeved with a sleeve pipe which indwells in the urethra of the penis of the child patient after the inner pipe is removed, and several connection points are arranged between the inner pipe and the sleeve pipe. Based on this, the urethral stent pipe can pass through the full length of the urethra of the child patient under an anesthesia condition in the hypospadias operation simply by directly connecting the sleeve pipe with the glans penis of the child patient, one end of the stent pipe is placed in the bladder, the other end of the stent pipe is connected with an urine bag and retained, after the operation, the connection points are cut off at the later stage of wound recovery, the inner pipe is pulled out, only the sleeve pipe is retained at the urethra of the penis of the child patient, the situation is avoided that the urethral stent pipe and the glans penis needs to be connected after disconnection, and the pain of the child patient is relieved.
Owner:SHENZHEN CHILDRENS HOSPITAL
Urethral stent and bladder control assembly comprising such a urethral stent
ActiveUS20190374329A1Strong magnetic fieldEfficiently controlling valveAnti-incontinence devicesHeart valvesUrethraInsertion stent
A urethral stent for arrangement in the urethra of a patient is disclosed. The ethereal stent includes a tubular body having first and second openings, retention elements connected to the tubular body at the first opening and to the tubular body at a distance from the first retention element, and a valve. The valve includes a valve seat formed by the first opening and a valve element that is pivotably connected to the tubular body and / or the valve seat. The valve is pivotable between a closed position and an open position to close and open the lumen, respectively. The valve is at least partly made of a ferromagnetic material and has an area which exceeds the area of the first opening. A bladder control assembly comprising the urethral stent is also disclosed.
Owner:DENTSPLY IH
Stent and Method of Use
A urinary stent includes ends for deployment in the kidney and bladder, respectively, that are non-coplanar. The bladder end of the stent includes a luminary groove, covered by a sleeve of materials softer than the remainder of the stent, allowing urine at sufficient pressures to pass out from the stent, between the stent and the sleeve. The bladder end of the stent adapts its shape according to respiratory changes in the length of the stent. This shape change also prevents or reduces stent related pain.
Owner:INNOVENTIONS LTD
Stent Removal Snare and Dilator
A tool for removing non-visually, urinary tract stents placed within the urinary tract of a patient, comprising a distal end, a longitudinally-extending stem, and a handle. The distal end has a conical head with a groove for hooking a stent, stent string or similar stent configuration. The snare head may have a channel for advancing the tool through a urethra over a guide wire. The snare head has a narrow conical front end for dilating urethral strictures. The stem connects the snare head to the snare handle and is made to be flexible or bend on encountering resistance.
Owner:MOOREVILLE MICHAEL
Urethral stent and bladder control assembly comprising such a urethral stent
ActiveUS10568730B2Good attractionThe process is simple and convenientStentsHeart valvesUrethraEngineering
A urethral stent for arrangement in the urethra of a patient is disclosed. The ethereal stent includes a tubular body having first and second openings, retention elements connected to the tubular body at the first opening and to the tubular body at a distance from the first retention element, and a valve. The valve includes a valve seat formed by the first opening and a valve element that is pivotably connected to the tubular body and / or the valve seat. The valve is pivotable between a closed position and an open position to close and open the lumen, respectively. The valve is at least partly made of a ferromagnetic material and has an area which exceeds the area of the first opening. A bladder control assembly comprising the urethral stent is also disclosed.
Owner:DENTSPLY IH AB
Absorbable lumen stent and preparing method and application thereof
The invention discloses an absorbable lumen stent which is characterized in that the absorbable lumen stent is of a hollow tubular structure and made of acyl amino polysaccharide, and the tube wall is provided with or not provided with a transparent hole structure or pattern structure. The lumen stent can serve as a blood vessel stent, a biliary stent or a urethral stent, is used for treating narrowing of the blood vessel, the bile duct and the urine tube cavity and can be degraded and absorbed in a human body, the situation that the lumen stent stays in the body for a long time can be avoided, and the absorbable lumen stent has wide market prospect.
Owner:QINGDAO HUISHENG HUIZHONG BIOLOGICAL TECH CO LTD
A kind of absorbable endoluminal stent and its preparation method and application
ActiveCN105148330BHigh mechanical strengthGood grip rebound performanceSurgeryCoatingsUrethraInsertion stent
The invention discloses a developable absorbable luminal stent, which is characterized in that it is a hollow tubular structure made of acylated amino polysaccharide, the outer surface of the tubular structure has a developing coating, and the tube wall has or does not have a transparent hole structure or patterned structures. The luminal stent of the present invention can be used as a vascular stent, a bile duct stent, and a urethral stent for the treatment of stenosis of blood vessels, bile ducts, and urethra. market expectation.
Owner:青岛健康海洋生物制药有限公司
Stent removal snare and dilator
A tool for removing non-visually, urinary tract stents placed within the urinary tract of a patient, comprising a distal end, a longitudinally-extending stem, and a handle. The distal end has a conical head with a groove for hooking a stent, stent string or similar stent configuration. The snare head may have a channel for advancing the tool through a urethra over a guide wire. The snare head has a narrow conical front end for dilating urethral strictures. The stem connects the snare head to the snare handle and is made to be flexible or bend on encountering resistance.
Owner:MOOREVILLE MICHAEL
A urethral stent and catheter fixer
The invention specifically relates to an in-urethra support and a catheter fixer, belongs to the technical field of medical auxiliary equipment and comprises an openable head part and lateral parts symmetrically disposed on two sides of the head part, wherein the head par comprises a cylinder and a glans cap which are disposed integrally; each lateral part comprises a lateral plate disposed on the glans cap; and a bandage is disposed on the lateral plate. The invention has the purpose that a lock catch is disposed on the head part, so the head part can be opened, and the in-urethra support or a catheter could be put in; an elastic body is disposed on the inner wall of a glans part, so falling of the fixer from the glans could be avoided; and external fixation is adopted, so fixation is reliable, and a patient's pain can be relieved.
Owner:李超
Disposable atraumatic urethral dilator and method of use thereof
The invention is applicable to the field of medical apparatuses and discloses a disposable injury-free urethral dilator and a using method thereof. The disposable injury-free urethral dilator comprises a tearable sheath tube with a round or oval cross section and a sheath rod movably inserted in the sheath tube, the sheath tube is provided with a smooth surface, an extension end and a tear end, a tearing structure used for guiding the sheath tube to be torn is arranged on the outer surface of the sheath tube and linearly extends to the extension rod from the tear end, the tip of the extension end is provided with a through hole allowing a resectoscope to penetrate out, a central axis of the through hole and a central axis of the sheath tube are located on the same straight line, and the sheath rod is provided with a sealing portion which penetrates out of the through hole and is used for closing the through hole. The disposable injury-free urethral dilator can provide guidance for insertion of the resectoscope, the urethra is protected, pain of patients is reduced, and postoperative recovery of the patients is facilitated; the using method is simple in step and easy to operate, and surgical efficiency is improved.
Owner:深圳市盛康泰医疗器械有限公司
A kind of urethral stent and implantation system
ActiveCN107684480BAvoid interfering with urinationSimple and fast operationStentsInsertion stentSilica gel
Owner:艾利姆公司
A kind of absorbable luminal stent and its preparation method and application
ActiveCN105148329BHigh mechanical strengthGood grip rebound performanceSurgeryUreter stenosisUrethra
The invention discloses an absorbable luminal stent, which is characterized in that it is a hollow tubular structure made of acylated amino polysaccharide, and the tube wall has or does not have a transparent hole structure or pattern structure. The lumen stent of the present invention can be used as a vascular stent, a bile duct stent, and a urethral stent for the treatment of stenosis of blood vessels, bile ducts, and urethra, and can be degraded and absorbed in vivo to avoid long-term retention in the body, and has broad market prospects.
Owner:QINGDAO HUISHENG HUIZHONG BIOLOGICAL TECH CO LTD
Urethral stent tube used after hypospadias repair
InactiveCN114712663ANo splash pollutionAvoid cluster infectionBalloon catheterUrethraeBladder SpasmProstate Fossa
The invention relates to the technical field of medical instruments, and particularly discloses a urethral stent tube used after a hypospadias repair operation. The urethral stent tube comprises a main body of a tubular shell structure and a first balloon fixed to one side of the outer wall of the main body in a surrounding mode. When a patient needs to place the urethral stent tube, the main body is inserted into the urethra and stops when the first balloon reaches the prostatic fossa position, and then the first balloon is filled so that the first balloon is expanded to clamp the whole stent tube at the prostatic fossa position. Due to the fact that the first balloon does not enter the bladder, the bladder wall is not pressed by the balloons in the catheter indwelling time period, a patient does not feel uncomfortable or even bladder spasm, and the comfort level of the patient is greatly improved.
Owner:FOSHAN MATERNAL & CHILD HEALTH CARE HOSPITAL
Features
- R&D
- Intellectual Property
- Life Sciences
- Materials
- Tech Scout
Why Patsnap Eureka
- Unparalleled Data Quality
- Higher Quality Content
- 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com