31 results about "Prostatic urethra" patented technology

The application discloses a high-compliance temporary prostatic urethral stent with a cordless recovery system and belongs to the field of medical devices, which comprises a stent, a connecting sleeve is arranged on the stent, a guide wire is detachably arranged on the connecting sleeve, and a connecting line is arranged in the guide wire; a storage fixing sleeve is arranged on the outer side of the stent, the stent is stored in the storage fixing sleeve in an initial state; and a recovery system is further included, and the stent and the mechanical structure of the recovery system form a releasable locking cooperation in a recovery stage. The cordless magnetic recovery system is adopted to eradicate the pain and the risk of retrograde infection caused by the indwelling suture line; the magnetic-attraction mechanical double locking cooperation self-adaptive multi-claw probe realizes accurate capture under blind vision; the asymmetric cross-section wire is adopted for the stent body to improve the circumferential flexibility while providing sufficient radial support; and the flexible connecting anchor leaf can be self-adaptive to the asymmetric bladder neck dissection, can disperse stress and can avoid tissue stimulation and damage.

A delivery device for positioning an implantable expander to a target location in a prostatic urethra. An implantable biocompatible expander suitable for implantation into a urinary duct is resiliently deformable from a relaxed radially expanded orientation to a radially contracted orientation suitable for transluminal delivery through the urinary duct. The expander may be configured to exert an outward radial force against a wall of the urinary duct when in-situ within the urinary duct. In particular, the expander is suitable for treatment of benign prostatic hyperplasia and configured for implantation into the prostatic urethra between, and substantially spanning the prostatic urethra between, the bladder neck and external sphincter.

Systems, devices, and methods are provided for the delivery of an implant into the prostatic urethra. Embodiments of delivery systems can include a delivery device for insertion into the patient and a proximal control device for use in controlling release of the implant from the delivery device.

Aspects of the present invention relate to a delivery device for locating an expandable implant for treating BPH within the prostatic urethra of a patient. The delivery device comprises an inner tube and an outer sleeve movable relative to the inner tube between a stored position and a deployed position. The outer sleeve surrounds the inner tube to define an annulus therebetween and the expandable implant is retained within the annulus when the outer sleeve is in the stored position.

A catheter for deploying an implantable expander in a urethra. An implantable biocompatible expander suitable for implantation into a urinary duct is resiliently deformable from a relaxed radially expanded orientation to a radially contracted orientation suitable for transluminal delivery through the urinary duct. The expander may be configured to exert an outward radial force against a wall of the urinary duct when in-situ within the urinary duct. In particular, the expander is suitable for treatment of benign prostatic hyperplasia and configured for implantation into the prostatic urethra between, and substantially spanning the prostatic urethra between, the bladder neck and external sphincter.

Some embodiments of the invention advantageously leverage the expansion of the prostatic urethra using adjustable lumen tension rings (ALTRs) of desired sizes to control and improve flow throughout the range of the urethra. As such, some embodiments include tension ring(s) or cylinders that sits either inside or outside the prostatic wall and is at least partially within the lumen and / or is partially or fully anchored, attached, adhered, or otherwise held in place with respect to the bladder or other locations within the urethra and / or elsewhere in the urethra. The expansion of the lumen can be pre-configured based on pre-operative metrology of the prostatic urethra to a customized and adjustable fit across the various zones within the urethra and based on the patient specific and evolving needs.

The invention relates to a prostate urethra auxiliary stripping device which comprises a handle, a handle fixedly arranged on the handle, a stripping mechanism arranged at the other end of the handle and a control switch arranged on the handle and used for controlling the stripping mechanism. The stripping mechanism comprises a shovel main body movably arranged on the handle, a left shovel telescopically arranged in the shovel main body, a right shovel telescopically arranged in the shovel main body, a reset assembly arranged in the shovel main body and used for driving the left shovel and the right shovel to stretch out and draw back, and a reciprocating assembly arranged on the handle and used for driving the shovel main body to move; the front stripping blade is arranged at the front end of the shovel main body, the left stripping blade is arranged at one end of the left shovel, and the right stripping blade is arranged at one end of the right shovel. According to the auxiliary stripping device, multi-angle and multi-direction stripping operation can be completed, the number of times that an instrument enters and exits a body cavity is reduced, the risk that surrounding tissue is accidentally injured, and bleeding or infection is caused is objectively reduced, and the convenience and safety of an operation are improved.

A stent is disclosed that is configured to maintain patency of the prostatic urethra despite an enlarged prostate. The stent can include a handle that, in an undeflected position, is disposed outside of the flow path of the stent. When the handle is pulled, the handle can deflect to generally aligned with a central axis of the stent. A capture device is disclosed that includes a tapered tip to navigate a working channel of a delivery device and a hook that can capture the stent handle and be moved into a tube to retain the stent handle to facilitate maneuvering of the stent in and out of the working channel of the delivery device. A loading adapter with a tapered port is disclosed that can be disposed on the delivery device to distribute compressive forces applied by the port on the stent during loading into the working channel.

A catheter for deploying an implantable expander to a target location in a urethra. An implantable biocompatible expander suitable for implantation into a urinary duct is resiliently deformable from a relaxed radially expanded orientation to a radially contracted orientation suitable for transluminal delivery through the urinary duct. The expander may be configured to exert an outward radial force against a wall of the urinary duct when in-situ within the urinary duct. In particular, the expander is suitable for treatment of benign prostatic hyperplasia and configured for implantation into the prostatic urethra between, and substantially spanning the prostatic urethra between, the bladder neck and external sphincter.

Systems, devices, and methods are provided for the delivery of an implant into the prostatic urethra. Embodiments of delivery systems can include a delivery device for insertion into the patient and a proximal control device for use in controlling release of the implant from the delivery device.

Systems, devices, and methods are provided for the delivery of an implant into the prostatic urethra. Embodiments of delivery systems can include a delivery device for insertion into the patient and a proximal control device for use in controlling release of the implant from the delivery device.

Systems, apparatus, and methods for delivering an implant into the prostatic urethra are provided. Embodiments of the delivery system may include a delivery device for insertion into a patient and a proximal control device for controlling the release of the implant from the delivery device.

A delivery device for image-assisted delivery of an implantable expander in a urethra. An implantable biocompatible expander suitable for implantation into a urinary duct is resiliently deformable from a relaxed radially expanded orientation to a radially contracted orientation suitable for transluminal delivery through the urinary duct. The expander may be configured to exert an outward radial force against a wall of the urinary duct when in-situ within the urinary duct. In particular, the expander is suitable for treatment of benign prostatic hyperplasia and configured for implantation into the prostatic urethra between, and substantially spanning the prostatic urethra between, the bladder neck and external sphincter.

A delivery tube for image-assisted positioning an implantable expander in a prostatic urethra. An implantable biocompatible expander suitable for implantation into a urinary duct is resiliently deformable from a relaxed radially expanded orientation to a radially contracted orientation suitable for transluminal delivery through the urinary duct. The expander may be configured to exert an outward radial force against a wall of the urinary duct when in-situ within the urinary duct. In particular, the expander is suitable for treatment of benign prostatic hyperplasia and configured for implantation into the prostatic urethra between, and substantially spanning the prostatic urethra between, the bladder neck and external sphincter.

The present invention provides a urethral indwelling device that can be stably placed in a predetermined position within the urethra due to its simple structure. [Solution] The urethral indwelling device 1, which is placed inside the urethra, comprises a prostatic loop portion 10 located at the tip and placed in the prostatic urethra, a bulbous urethral loop portion 20 located at the proximal end and placed in the bulbous urethra, and a loop connecting linear portion 30 that connects the prostatic loop portion 10 and the bulbous urethral loop portion 20. The prostatic loop portion 10, the bulbous urethral loop portion 20, and the loop connecting linear portion 30 are composed of a superelastic alloy wire 5 and a flexible covering tube 6 that covers the superelastic alloy wire 5.

Aspects of the present invention relate to a delivery device for locating an expandable implant for treating BPH within the prostatic urethra of a patient. The delivery device comprises an inner tube and an outer sleeve movable relative to the inner tube between a stored position and a deployed position. The outer sleeve surrounds the inner tube to define an annulus therebetween and the expandable implant is retained within the annulus when the outer sleeve is in the stored position.

The utility model discloses a medicine balloon catheter for treating benign prostatic hyperplasia, which belongs to the technical field of medical instruments and comprises a catheter, a pre-expansion balloon and a medicine balloon, two ends of the catheter are respectively connected with a Y-shaped needle seat and an elastic tip, and the pre-expansion balloon and the medicine balloon are sequentially connected onto the catheter. The near end of the pre-dilation balloon is integrally connected with a bonding platform, the far end of the medicine balloon is fixedly connected to the outer side of the bonding platform to form a balloon neck, the outer side of the balloon neck is sleeved with a restraint ring, the catheter is provided with a marking ring at the near end of the medicine balloon, and the outer surface of the medicine balloon is coated with a medicine composition layer; the bonding platform is in an inverted cone shape, a bonding ring table extends from the connecting position of the bonding platform and the pre-dilation balloon, and the medicine balloon is connected with the bonding ring table. The pre-expansion balloon and the medicine balloon can be expanded respectively through the bonding platform, and the nick wires expand the prostatic urethra in order to form micro-cracks, so that the absorption efficiency of the medicine coating is improved.

This application provides a monitoring system for prostate surgery, comprising a tissue pressure acquisition unit, a dynamic pressure difference acquisition unit, and a judgment unit; with the urethra as the Z-axis, the tissue pressure acquisition unit establishes a mapping relationship between the tissue pressure F and the Z-axis position by moving a force sensor along the urethra; the dynamic pressure difference acquisition unit detects bladder pressure P by moving a first pressure sensor along the urethra and a second pressure sensor. bladder Establish dynamic pressure difference ΔP sensor Mapping relationship with Z-axis position; dynamic pressure difference ΔP sensor Bladder pressure P bladder The fluid pressure P in the urethra sensor The difference; the decision unit is based on F and ΔP. sensor At least one of these methods involves marking specific locations in the prostatic urethra corresponding to candidate disease types. This allows for easy and accurate localization of abnormal features during prostate surgery, and the assignment of different markings to different disease types.

This invention discloses a treatment device for benign prostatic hyperplasia that utilizes an anchor assembly and a needle. [Solution] The prostate enlargement treatment device according to the present invention includes a plurality of anchors positioned outside the prostate to compress the urethra, and a ligature that connects the plurality of anchors to each other so that the plurality of anchors continuously compress the prostate tissue to secure the prostatic urethra. The device may further include an elastic needle that houses the anchors and the ligature and guides them into the urethra so that they are placed in the prostate, and a needle launching means that launches the needle so that it is inserted into the urethra and is operated so that the plurality of anchors and the ligature are discharged through the needle.

The invention discloses a visual cooperative control method for a prostate urethral dilation catheter, relates to the technical field of medical instruments, and solves the problem that a prostate dilation system combining real-time visual guidance, multi-modal feedback monitoring and intelligent cooperative control does not exist at present. According to the technical scheme, the method is characterized by comprising the following steps that 1, a prostate three-dimensional anatomical model of a patient is constructed, operation planning is conducted, and key operation parameters are calculated; 2, accurately positioning and expanding the catheter through a real-time visual navigation system; step 3, carrying out collaborative expansion by adopting a progressive pressure control model; the implementation mode of prostate dilatation is fundamentally changed, 'manual art 'depending on personal skill is converted into'precise engineering' based on models and data, finally leap-type comprehensive improvement is achieved in multiple aspects such as curative effect, safety, efficiency and generalization performance, and the prostate dilatation system has great clinical value and social benefits.

The present application relates to a stent device for expanding the prostatic urethra and unobstructing the bladder neck of a patient. The stent device comprises: two pressure lines in a closed shape having a prostatic urethra section and a bladder neck section for exerting outward radial pressure on the prostatic urethra and the bladder neck; and a plurality of bridging elements for coupling them together along the length of the closed-shaped pressure lines, where each closed-shaped pressure line has a substantially closed oval shape; wherein the width of the prostatic urethra section of each closed pressure line is greater than the width of the bladder neck section; wherein each of the two pressure wires of closed shape and the plurality of bridging elements is resilient and has a shape memory such that the stent device has an expanded configuration and is also compressible to a compressed configuration; and wherein, in the expanded configuration, the pressure line of the closed shape exerts outward radial pressure on the prostatic urethra and the bladder neck.

To treat prostate enlargement and a constriction of the prostatic urethra while also maintaining the bladder neck and internal urethral sphincter unobstructed.SOLUTION: A stent device comprises: two closed elliptical pressure wires, each having a prostatic urethra section and a bladder neck section for exerting an outward radial pressure on the prostatic urethra and the bladder neck; and a plurality of bridging elements for coupling the two closed elliptical pressure wires together along a length of the pressure wires. A width of the prostatic urethra section is larger than a width of the bladder neck section of each of the pressure wires. Each of the two closed elliptical pressure wires and the plurality of bridging elements are elastic and have shape memory thereby giving the stent device an expanded configuration and also being compressible into a compressed configuration. In the expanded configuration, the pressure wires exert the outward radial pressure on the prostatic urethra and the bladder neck.SELECTED DRAWING: Figure 4

Systems, devices, and methods are provided for the delivery of an implant into the prostatic urethra. Embodiments of delivery systems can include a delivery device for insertion into the patient and a proximal control device for use in controlling release of the implant from the delivery device.

Aspects of the present invention relate to a method for locating an expandable implant for treating BPH within the prostatic urethra of a patient. The delivery device comprises an inner tube and an outer sleeve moveable relative to the inner tube between a stored position and a deployed position. The outer sleeve surrounds the inner tube to define an annulus therebetween and the expandable implant is retained within the annulus when the outer sleeve is in the stored position.

A delivery tube for image-assisted positioning an implantable expander in a prostatic urethra. An implantable biocompatible expander suitable for implantation into a urinary duct is resiliently deformable from a relaxed radially expanded orientation to a radially contracted orientation suitable for transluminal delivery through the urinary duct. The expander may be configured to exert an outward radial force against a wall of the urinary duct when in-situ within the urinary duct. In particular, the expander is suitable for treatment of benign prostatic hyperplasia and configured for implantation into the prostatic urethra between, and substantially spanning the prostatic urethra between, the bladder neck and external sphincter.

It is an object of the disclosed technique to provide methods and systems for a stent device, such as a prostatic urethral implant, for treating prostate enlargement and a constriction of the prostatic urethra while also maintaining the bladder neck and internal urethral sphincter unobstructed.

Systems, devices, and methods are provided for retrieval of an implant from the prostatic urethra. Embodiments of retrieval systems can include a device for insertion into the patient and a proximal control device for use in grasping a portion of the implant and withdrawing the implant into a lumen of the retrieval system.

The present application relates to a micro ultrasonic radar ranging device for an electric resectoscope, which has a probe rod body, the inside of the probe rod body is provided with a probe rod electrode, one end of the probe rod electrode remains inside the probe rod body, and the end of the probe rod electrode remaining inside is connected with a probe rod head, the probe rod head comprises a probe rod front fork and a probe head base, and a micro ultrasonic probe is arranged on the probe head base. The micro ultrasonic radar ranging device for the electric resectoscope is an ultrasonic ranging device that can be carried on the electric resectoscope, meets the clinical needs of an operator to directly observe the shape of a surgical area during transurethral resection, solves the inconvenient, non-intuitive and non-direct problems existing in transabdominal, perineal or rectal route ultrasonic measurement and ultrasonic cystoscope measurement, and enables a urologist to conveniently measure the intracavitary anatomical structure when performing intracavitary operation on the prostate urethra using the electric resectoscope, so that the urologist can timely understand the intracavitary structure changes of the surgical area after surgical intervention and better formulate a subsequent surgical plan.

The subject matter described herein relates to systems, devices, and methods for delivering or deploying an implant into the prostatic urethra, and more particularly, for delivery through the tortuous bends of the male urethra in an atraumatic and minimally invasive manner. Systems, devices, and methods for retrieval of an implant from the prostatic urethra are provided. Embodiments of the retrieval system can include a device for insertion into a patient and a proximal control device for use in grasping a portion of the implant and withdrawing the implant into a lumen of the retrieval system.

The utility model discloses a prostate urethral stent system conveyor with a window, which relates to the technical field of medical instruments and comprises an inner tube and an outer tube, the outer tube is sleeved on the outer tube, an insertion end of the inner tube is provided with an insertion port, the inner tube is provided with an inward-opening window, the outer tube is provided with an outward-opening window, and the inward-opening window and the outward-opening window are communicated with each other. An endoscope is arranged in the inner tube, and a bracket is arranged on the inner tube; on the basis of the technical scheme provided by the utility model, the window facing the verumontana is additionally arranged on the conveyor, and the windows are simultaneously formed on the outer tube and the inner tube, so that the window through which the near end of the bracket and the position of the verumontana can be observed by an endoscope is formed, and the near end of the bracket and the position of the verumontana can be directly observed by the endoscope in an operation; therefore, the support can be accurately placed.