Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

30 results about "Bladder cavity" patented technology

Method and device for establishing bladder cancer in-situ model of nude mouse

The invention discloses a method for establishing a bladder cancer in-situ model of a nude mouse. The method is characterized by comprising the following steps of: narcotizing a female nude mouse superficially, and inserting a urethral catheter with a side hole into a bladder from a urethral canal, so that negative pressure is formed in the urethral catheter continuously; penetrating a cutter into the urethral catheter, and adjusting the positions of a cutting inclined plane and the side hole of the urethral catheter; cutting under the negative pressure to cut part of mucous membrane layers off, so that the lower layer of a bladder mucous membrane is exposed to form a local wound surface; and pouring human bladder cancer cell suspension which is in the logarithm growth period into a bladder cavity of the nude mouse and reserving for a period of time, discharging the cell suspension out, and establishing the superficial bladder cancer model after 7 days. Compared with the conventional electrocauterization method, the conventional chemical medicinal corrosion method and the conventional bladder puncture intracavity cutting method, the method has the advantages that molding assemblies are low in production cost, and the method for establishing the bladder cancer model is good in effect, the device is easy to operate, the time is short, the nude mouse has little pain, and death caused by anesthesia, operation strike and infection is reduced obviously.
Owner:李云龙

Integrated rigid ultrasonic cystoscope system

The invention belongs to the field of medical devices and particularly discloses an integrated rigid ultrasonic cystoscope system which comprises a rigid cystoscope and a cold light source host and a camera host connected with the rigid cystoscope, wherein the rigid cystoscope comprises a main body endoscope part and a cystoscope sheath tube part connected with the main body endoscope part, a micro-ultrasonic probe part, a light guide optical fiber and a device channel outlet are arranged at a rigid endoscope end part, and the micro-ultrasonic probe part is directly integrated at the rigid endoscope end part, thereby designing the rigid cystoscope into the integrated rigid ultrasonic cystoscope. The integrated rigid ultrasonic cystoscope system is placed into the bladder through the urethra of a patient, and a doctor operates a control unit of a cystoscope body for starting the micro-ultrasonic probe part of an endoscope, thereby carrying out annular scanning or linear scanning on the bladder cavity, displaying the scanning result in a monitor, carrying out three-dimensional reconstruction on the bladder cavity, knowing the situation of the bladder cavity and helping the doctor made judgments. The integrated design of the integrated rigid ultrasonic cystoscope leads the micro-ultrasonic probe part to be difficult to be damaged and facilitate the operation of the doctor; furthermore, an endoscope image and an ultrasonic image are easier to be obtained synchronously, thereby improving the image quality of the lesion area and greatly improving the accuracy of diagnosis.
Owner:广州市番禺区胆囊病研究所

Sand-like gall bladder calculus suction system

InactiveCN102283683ASolve difficult-to-clean problemsReach clean sediment-like stonesSurgeryBladder cavitySilica gel
The invention belongs to the field of medical instruments, and particularly discloses a sand-like gall bladder calculus suction system. The system comprises a hard gall bladder mirror, wherein the hard gall bladder mirror comprises an endoscope main body, a hard endoscope end part, a water inflow channel or/and a water outflow channel; a sand-like calculus absorption box made of a flexible material is sleeved on the tip part of the front end of the hard endoscope end part, and is a through pipe which is provided with a large diameter end for collecting sand-like calculuses and a small diameter end connected with the tip part; and the water inflow channel or/and the water outflow channel are connected with a negative pressure suction device. In the system, the sand-like calculuses in a gall bladder cavity are sucked completely by a principle similar to that of a vacuum dust collector. Due to the design of a sand-like gall bladder calculus suction box, surgery methods such as pushing, extrusion, pressing and the like of a doctor and the accommodation of the sand-like calculuses are facilitated. The system is manufactured by a silica gel material with appropriate hardness, so that the operation experience degree of the doctor is realized to the greatest extent, damages to the wall of a gall bladder are reduced to the lowest extent, and protection for the gall bladder of a patient and improvement on the safety of a surgery are facilitated.
Owner:GUANGZHOU BAODAN MEDICAL INSTR TECH

A bicycle saddle with massage function based on hydraulic technology

A bicycle saddle with massage function based on hydraulic technology, adopting a capsule structure, including a left capsule, a middle capsule and a right capsule. The left capsule and the right capsule are symmetrically distributed relative to the middle capsule. , The middle cyst cavity and the right cyst cavity are filled with hydraulic oil; a damping hole is opened on the wall between the left/right cyst cavity and the middle cyst cavity, and a damping hole is opened on the wall between the left/right cyst cavity and the middle cyst cavity A one-way valve is installed, the liquid inlet of the one-way valve communicates with the left/right cavity, and the liquid outlet of the one-way valve communicates with the middle cavity; a tension spring is vertically installed in the middle cavity, and the tension spring is fixed in the middle Between the top and bottom walls of the cystic cavity; when the left and right cystic cavities are in an unpressurized state, the tension spring is in a retracted state, and the wall at the top of the middle cystic cavity is in a concave shape under the action of the spring force; when When the left capsule cavity or the right capsule cavity is under pressure alone, the tension spring is in a stretched state, and the top capsule wall of the middle capsule cavity is in an upward convex shape under the action of hydraulic pressure.
Owner:NORTHEASTERN UNIV

Intelligent control backwashing constant-pressure perfusion and suction system

The invention relates to the technical field of transurethral ureteral lithotripsy, and particularly relates to an intelligent control backwashing constant-pressure perfusion and suction system. The system is composed of a perfusion bag, a perfusion pump, an intelligent control device, a control valve, two novel attractable ureteral hard mirrors which are independent perfusion and suction channels, a negative pressure suction bottle and a central negative pressure suction device. When the system is used, the system enters a bladder cavity through the urethra and then is placed into a ureter cavity from a ureter opening along a guide wire, calculi in the ureter cavity are found, and related lithotripsy instruments are used for removing the calculi in the ureter. Water injection during an operation and negative pressure suction drainage are carried out at the same time, the drainage speed during the operation can be increased on the premise that the operation is not affected, continuouswater circulation in the operation view is formed, the good definition of the view in the operation process can be kept, the operation lithotripsy efficiency is obviously improved, the safe intra-cavity pressure set before the operation can be accurately controlled, and complications such as postoperative bacteremia, urogenic sepsis, pulmonary edema and heart failure are prevented.
Owner:范地福

A piezo-driven infusion set

The invention relates to a piezoelectric-driven transfusion device, which belongs to the field of medical equipment. The seat plate of the main body is provided with a cavity, and a medicine bag with a medicine cavity and an air cavity is installed in the cavity; the bottom of the seat plate is provided with left and right bosses and at least two body platforms whose diameters decrease successively from left to right, and on the left boss There is an upper inlet hole, an upper outlet cavity and an upper outlet hole are arranged on the right boss, an upper inlet cavity and an upper air outlet are arranged on the body platform; left and right cavities and body cavities equal in number and diameter to the body platform are respectively arranged on the base, The bottom wall of the left cavity is provided with a lower inlet hole, the bottom wall of the right cavity is provided with a lower outlet cavity, and the bottom wall of the body cavity is provided with a lower inlet cavity and a lower air outlet; The plate is mounted on the base and the upper and lower inlet holes are connected, the upper and lower outlet openings are connected with the upper outlet hole, the body platform presses the piezoelectric driver in the body cavity through the sealing ring to form the upper and lower compression chambers, and the upper and lower compression chambers connected in series are connected in parallel; the air chamber It communicates with the upper outlet hole through the air pipe, and the infusion pipe of the medicine cavity is equipped with a flow valve and a needle.
Owner:ZHEJIANG NORMAL UNIVERSITY

Injector capable of repeatedly using boosting device and liquid storage device thereof

A syringe capable of repeatedly using a drive device, and a liquid storage device (100) thereof. The syringe is provided with a liquid storage device (100) and a drive device (200); the liquid storage device (100) is provided with a connection joint (110) and an elastic medicine bladder (120), the elastic medicine bladder (120) is disposed in an inner cavity of he connection joint (110), and the elastic medicine bladder (120) is connected to the inner cavity of the connection joint (110) in a sealing manner; the drive device (200) is provided with a jacket (210) and a core bar (220), one end of the core bar (220) is provided with a rubber plug (221), the core bar (220) is disposed inside of the jacket (210) and the rubber plug (221) contacts the inner wall surface of the jacket (210) in a sealing manner, and the connection joint (110) is disposed at an assembly end (211) of the jacket (200); and the elastic medicine bladder (120) is provided with a bladder wall (121) and a bladder cavity (122). The drive device (200) is further provided with a unidirectional fastening structure, and the unidirectional fastening structure is provided with a mounting base (231), an injection clip (232), and an elastic part (233); the core bar (220) is further provided with a clipping position (222), a clip end (2321) is fastened to the clipping position (222). The syringe can repeatedly use the drive device, so that the money spent by the patients is saved and the raw materials are greatly conserved, thereby conforming to the environmental requirements.
Owner:DIAN BAI KANGERMEI BIOLOGICAL TECH

Intravesical catheter integrated with stimulating electrode

The invention discloses an intravesical catheter integrated with a stimulating electrode. According to the invention, a stimulating electrode unit is bonded in a catheter unit through injection molding and comprises a near-end electrode and a far-end electrode; an electrode wire unit is arranged in a catheter wall interlayer of the catheter unit and is connected with the near-end electrode and thefar-end electrode; a balloon unit comprises a first balloon and a second balloon, the first balloon is pressurized and expanded when the catheter unit is used for catheterization so as to block a urethral orifice to prevent urine from overflowing, the first balloon releases pressure after the urine is guided out, and the second balloon fixes the insertion depth of the catheter unit; and an interface unit comprises a far-end electrode fixed connection end, a balloon pressurizing and pressure-releasing channel port, a catheter urine outflow channel port and a normal saline injection channel port. A stimulation loop formed by the stimulating electrode inserted into a bladder cavity through a catheter and electrodes adhered on a body surface is omitted, and the intravesical catheter is simpler, more convenient, more reliable and more efficient to use; and a double-balloon design ensures that an effective stimulation area of the stimulating electrode is located in the bladder cavity, and the stimulating electrode is prevented from falling off along the urethral orifice.
Owner:HANGZHOU CHENGNUO MEDICAL SCI & TECH CO LTD +1
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products