66 results about "Prostatic Gland" 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.

The invention relates to the technical field of medical equipment, and provides a prostate steam ablation control method and device and a storage medium, and the control method comprises the steps: controlling a water supply part to supply sterile water to a steam generation pipe according to a first water pushing speed, and controlling a heating assembly to heat the steam generation pipe at a first power, sterile water in the steam generation pipe is preheated to a target temperature; controlling the water supply piece to supply sterile water to the steam generation pipe according to a second water pushing speed, controlling the heating assembly to heat the steam generation pipe at a second power, heating the sterile water at the target temperature into ablation steam, and applying the ablation steam to a target ablation area by the steam ablation needle; and controlling the water supply piece to supply sterile water to the steam generation pipe according to the third water pushing speed, and controlling the heating assembly to heat the steam generation pipe at the first power. During steam ablation treatment, the stability of output ablation steam heat can be ensured, steam is prevented from burning a human body, steam holes of the steam ablation needle are prevented from being blocked, and the steam ablation treatment effect is ensured.

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.

The utility model relates to a kind of self-urination metal catheter, it includes the catheter body woven by metal wire, the distal end of catheter body is provided with bending anti-off structure to prevent the distal end of catheter body from being outwardly off from bladder in indwelling state, the proximal end of catheter body is close to external sphincter after passing through prostate area, the proximal end of catheter body is connected with fixed anchor placed in urethra by connecting line, fixed anchor is located at the outside of external sphincter and cannot slide to prostate area inwardly by the block of external sphincter, one end of fixed anchor is connected with traction rope, the other end of traction rope is stretched to patient's outside through urethra.The advantages are that new structure and material are used, infection risk can be effectively reduced, catheter indwelling time is prolonged, and stimulation to urethra or other urinary tissues is reduced;Catheter indwelling period does not need to use urine bag, and patient can self-control urination, improve life quality;Catheter body woven by metal wire is moderately soft and hard, and has good self-adaptability.

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.

This utility model relates to the field of steam ablation technology, providing a prostate thermal steam ablation catheter and steam ablation handle. The catheter includes a guide rod and a catheter tip, with the catheter tip located at the end of the guide rod. The catheter tip has a needle insertion channel and a flushing channel. The catheter tip has a first notch, a second notch, and a third notch, which surround the needle insertion channel. The sidewall of the catheter tip also has a first shielding surface and a second shielding surface. The first shielding surface guides a portion of the fluid flowing out along the first notch to flow in the opposite direction, and the second shielding surface guides a portion of the fluid flowing out along the second notch to flow in the opposite direction. This structure guides the flow of sterile water to the steam ablation center corresponding to the puncture needle, ensuring that sterile water covers three sides of the steam ablation center, forming a vortex. This allows for heat dissipation and uniform cooling of the treatment area, helping to avoid the risk of steam burns to tissue and improving the clarity of observation of the treatment area.

Devices and systems are disclosed for managing and / or treating body tissues obstructing a hollow body lumen, including the prostatic lobe tissues obstructing the urethra, for example conditions including benign prostatic hyperplasia (BPH), bladder outlet obstruction (BOO), benign prostatic obstruction (BPO) and associated lower urinary tract symptoms (LUTS). An implant is maintained in a constrained configuration within a distal portion of an elongated sheath so that is may be deployed by driving the implant with a pusher coaxially disposed within the sheath. An implant engaging element helps maintain control of the implant during deployment.

The invention discloses a construction method, system, equipment, product and medium for an ablation protection area, and the method comprises the steps: obtaining a cross-sectional image set of a prostate target area, the cross-sectional image set comprising a first cross-sectional image comprising a bladder neck and at least one second cross-sectional image comprising verumontanum; according to the first cross section image, a first boundary contour corresponding to the bladder neck is determined, and the first boundary contour covers the sphincter in the urethra; according to the second cross section image, a second boundary contour corresponding to the verumontana is determined, and the second boundary contour covers the verumontana; according to the first boundary contour and the at least one second boundary contour, the ablation protection area in the prostate target area is determined, the problem that definition of a functional structure depends on subjective judgment of clinical experience is solved, the quantitative protection standard of the functional anatomical axis from the bladder neck to the prostatic urethra to the verumontana is achieved, and the protection effect is improved. The risk of urination function impairment and sexual function impairment induced by transurethral ablation operation is effectively controlled.

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.

Implantable devices for retracting prostatic tissue of a patient are provided. In some embodiments, an implantable device may include a main body and a suture extending through at least a portion of the main body. The main body may be configured to extend through prostatic tissue of the patient such that a distal end portion of the main body resides at least partially outside of a prostatic capsule of the patient, and the distal end portion may be configured to deform from an undeformed configuration to a deformed configuration. The suture may include a first end and a second end extending from a proximal end of the main body, and the suture may be configured to cause the distal end portion to deform from the undeformed configuration to the deformed configuration when the first end and the second end are pulled proximally relative to the main body.

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.

The application discloses a double-bend type seminal vesicle support indwelling catheter, which comprises a base straight pipe, a head curved pipe, a tail curved pipe and a guide wire, the head curved pipe is arranged at one end of the base straight pipe and is used for automatically bending in the seminal vesicle during indwelling, the tail curved pipe is arranged at the other end of the base straight pipe and is used for automatically bending in the prostate small vesicle during indwelling, a through wire channel is arranged between the base straight pipe, the head curved pipe and the tail curved pipe, the guide wire can extend from the tail curved pipe to the outside of the body along the urethra during indwelling, and the guide wire is used for traction, the double-end stable fixation and the simplified cooperative design of the wire body pulling-out can solve the core problems of the instability of the existing seminal vesicle support equipment and the difficulty of pulling-out, a safer and more efficient medical instrument solution is provided for postoperative rehabilitation of the seminal vesiculoscope surgery, and the application has a high clinical popularization value.

The invention discloses a molecular classification diagnosis system for diagnosing prostatic cancer through a multi-target combined weight system, and belongs to the technical field of biological medicine. The method comprises the following steps: establishing a mathematical logic relationship among multiple targets through data training by utilizing an existing clinical database containing information of patients with prostatic cancer and benign hyperplasia, namely, a weight ratio of four biomarkers related to prostatic cancer to diagnosis of prostatic cancer, and obtaining a weight diagnosis formula for classification of prostatic cancer and benign hyperplasia of prostatic; a weight detection system is established, a DNA tetrahedral framework nucleic acid dimer structure is used as a signal output substrate, and a multi-target combined intelligent diagnosis system is constructed by pricing and modifying different signal molecules on a signal output probe, so that precise classification of prostatic cancer and benign prostatic hyperplasia is realized, and the accuracy of early diagnosis of prostatic cancer is improved.

The present invention provides a catheter and a treatment method that easily reach the uterine artery, the prostate artery, and engage from the radial artery. A catheter (1) for uterine artery engagement has a tubular body that communicates from a base end to a front end, the tubular body (2) has a shape portion (24) that is bent on substantially the same plane (X) to impart a shape, the shape portion (24) has a base end side bend portion (25) that is bent at a prescribed first angle (θ1), a front end side bend portion (27) that is prescribed a second angle (θ2) at a position further toward the front end side than the base end side bend portion (25), and is bent toward the same side as the base end side bend portion (25), a straight line-shaped intermediate straight line portion (26) that is disposed between the base end side bend portion (25) and the front end side bend portion (27), and a straight line-shaped front end side straight line portion (28) that is disposed further toward the front end side than the front end side bend portion (27), the first minimum curvature radius (R1) at the base end side bend portion (25) is 3 times or more and 11 times or less of the second minimum curvature radius (R2) at the front end side bend portion (27).

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.

A medical water jet cutter system. The medical water jet cutter system is provided with an insertion portion (12) and a handle portion (11) connected to the near end of the insertion portion (12), and the medical water jet cutter system comprises a water jet cutter assembly, a laser assembly, and a suction control assembly. The water jet cutter assembly comprises a water jet cutter channel (101) penetrating through the insertion portion (12) and the handle portion (11) and is configured to output a jet. The laser assembly comprises a laser channel (201) penetrating through the insertion portion (12) and the handle portion (11) and is configured to output laser energy. The suction control assembly comprises a suction channel (401) penetrating through the insertion portion (12) and the handle portion (11) and is configured to suck a fluid. The medical water jet cutter instrument combines water jet cutter technology and laser technology and enables the resection of prostate tissue without thermal damage while achieving hemostasis. In addition, the medical water jet cutter instrument enables the use of one instrument to complete an entire operation; during the operation, there is no need to replace the surgical instrument. The medical water jet cutter instrument is simple to operate and has a short learning curve.

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.

The dilatation balloon device comprises a catheter, a first balloon body, a protruding structure and a connecting piece, the catheter extends in the front-back direction, a first channel penetrating in the front-back direction is formed in the catheter, the first balloon body is arranged at the front end of the catheter, the front end of the first channel is communicated with the interior of the first balloon body, and the rear end of the first channel is communicated with a pressurizing device. The protruding structures are arranged on the outer surface of the first bag body in a protruding mode and distributed in a long shape extending in the front-back direction, in a projection view perpendicular to the front-back direction, the protruding structures are distributed on the periphery of the first bag body in a non-centrosymmetric mode, and the connecting piece is arranged at the rear end of the catheter and used for communicating the first channel with the pressurizing device. In the invention, the bulge structure can apply pressure to the affected part in a targeted manner, so that the affected part is cracked before other tissues in the bulge process of the first capsule body, and the treatment purpose is achieved. Therefore, the treatment accuracy can be improved, unnecessary tearing of healthy tissues is reduced, the complication risk is reduced, and the minimally invasive treatment requirements of diseases such as benign prostatic hyperplasia are met.

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.

The invention discloses a prostate treatment device which comprises a holding part, a steam puncture tube, a steam tube driving device, a conveying tube device, a liquid pushing device and a heating device. The steam puncture tube is provided with a puncture working end used for puncturing and allowing steam to flow out; the steam puncture tube is movably mounted in the holding piece; the steam pipe driving device is used for driving the steam puncture pipe to move so as to enable the puncture working end to enter and exit from the holding piece; the conveying pipe device is communicated with the steam puncture pipe; the liquid pushing device is used for conveying liquid to the conveying pipe device; and the heating device is used for heating the liquid flowing through the conveying pipe device to form steam. The device is simple and convenient in treatment operation, is easy to operate by operators, and reduces wounds to the body of a patient, so that the recovery time of the patient is effectively shortened, and the use safety is improved.

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.

The invention relates to the technical field of medical instruments, and particularly discloses a prostate expansion device for the urology department. The invention aims to overcome the inherent defects of the existing prostate expansion device in the aspects of expansion force control, tissue damage risk and reversibility. The tubular net rack is integrally formed by medical nitinol alloy and is divided into a near-end conical area, a middle cylindrical area and a far-end conical area in the axial direction; the stent recovers a preset shape at the body temperature of 37 DEG C, the maximum radial supporting force is controlled at the plateau stage of 0.8 N / mm to 1.2 N / mm, and the stent has the self-pressure-limiting characteristic; annular recovery hooks are arranged at two ends of the bracket; and the surface is subjected to electrochemical polishing treatment and a titanium nitride coating is deposited. By the adoption of the scheme, the expansionary force can be safe and controllable, and tissue damage is avoided; the anatomical compliance and comfort are improved; the recoverability is realized; calculus formation is effectively prevented, and the service life is prolonged.

The invention discloses a simulation instrument for operation in a bladder, and belongs to the field of medical instruments, and the simulation instrument comprises a body cavity simulation structure which is internally provided with a closed simulation body cavity; the elastic simulation bladder is arranged in the simulation body cavity, a plurality of traction lines are arranged on the outer wall of the elastic simulation bladder, the other ends of the traction lines are fixed to the inner wall of the body cavity simulation structure, and when the elastic simulation bladder is in a natural state, the elastic simulation bladder is maintained at an initial position by the traction lines; the simulation bladder neck is connected to the inner wall of the simulation body cavity and provided with a first end facing the elastic simulation bladder, and the elastic simulation bladder is provided with a connecting port connected to the first end in a sleeving mode; the simulation telescopic urethra is connected to the outer wall of the body cavity simulation structure and provided with a second end part deviating from the elastic simulation bladder, and an operation channel communicated with the elastic simulation bladder is arranged between the first end part and the second end part in a penetrating mode. Through the arrangement, physical limitation of a body cavity on the bladder can be simulated, so that a prostate block in the bladder can be taken out conveniently.

The utility model belongs to the technical field of body position pad, specifically a prostate massage multifunctional body position pad, it includes body position pad main part, one end of body position pad main part is swollen, the swollen end of body position pad is equipped with collection cavity, the other end fixedly connected with arm pad of body position pad main part, the one end fixedly connected with headrest of arm pad away from body position pad main part, the one end of swollen end away from arm pad is equipped with knee pad, beneficial effect: convenient patient one step to the position and comfortable to arrange knee chest lying position, the collection cavity at rear can place urine cup and leave prostate fluid in time.

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.

1. The name of the design product: disposable surgical instruments for treating benign prostatic hyperplasia. 2. The use of the design product: medical instruments for minimally invasive treatment of benign prostatic hyperplasia by condensing steam. 3. The design features of the design product: in shape. 4. The picture or photo that best indicates the design features: perspective view.

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.