17 results about "Renal pelvis" patented technology

The invention discloses a negative pressure suction sheath and a negative pressure suction assembly, and relates to the technical field of medical instruments, the negative pressure suction sheath comprises an insertion tube, a sheath base and a sealing element, the sheath base is arranged at the near end of the insertion tube and is communicated with the insertion tube, and the sealing element is arranged on the sheath base, is in sealing fit with the sheath base and / or the insertion tube, and blocks the near end of the insertion tube from being communicated with the outside. The insertion tube can be inserted into a human body, such as a pelvis and a bladder. The sealing piece can isolate the insertion channel from the external environment, and the insertion tube is communicated with the ureter and extends to the renal pelvis. At the moment, the sealing piece can prevent the insertion channel of the insertion tube from being directly communicated with the outside, so that the internal pressure of the insertion channel, the human body cavity and the organs is effectively maintained, the internal pressure change amplitude and range of the human body cavity and the organs are reduced, and the internal pressure change of the human body cavity and the organs is stabilized; and the probability of bleeding of human body cavities and organs due to severe pressure change is effectively reduced, so that the onset risk of complications is reduced.

To provide a pump configured to be deployed in a patient's body.SOLUTION: A pump assembly for increasing urine output from a patient includes at least one ureteral catheter 614 including a distal portion having a retention portion 624 configured to be positioned in a kidney, renal pelvis, and / or ureter of the patient and a proximal portion defining a drainage lumen. The retention portion includes at least one drainage port 626 that permits fluid flow into the drainage lumen. The pump assembly further includes a pump 612 configured to provide negative pressure to at least one of the renal pelvis or the kidney through the drainage lumen of the at least one ureteral catheter. The pump includes at least one fluid port in fluid communication with the drainage lumen of the proximal portion of the ureteral catheter for receiving fluid from the patient's kidney, and at least a portion of the pump is configured to be positioned within the patient's body.SELECTED DRAWING: Figure 15A

The application relates to the technical field of medical devices, and particularly discloses an insertion part, an endoscope, a kidney internal pressure detection system and an endoscope processing system. The insertion part comprises an insertion part body and an elastic coating. A camera module is arranged in the insertion part body. The elastic coating is connected to the outer side of the distal end of the insertion part body. The elastic coating is made of transparent material. A deformation mark is arranged on the elastic coating. The deformation mark is located in the viewfinder window of the camera module and can be captured by the camera module. When the distal end of the insertion part is inserted into the renal pelvis, the elastic coating is elastically deformed under the action of the kidney internal pressure, and then the deformation mark is changed. The change of the deformation mark can be quantified through image processing, so that the pressure in the renal pelvis can be conveniently measured. This method does not need to embed a micro pressure sensor in the distal end of the insertion part, and can avoid the error caused by external measurement, thereby improving the accuracy and timeliness of the kidney internal pressure measurement.

A urinary system calculus journey explanation model effectively solves the problem of inconvenient use of existing urinary system calculus journey explanation devices; including a support plate, the left and right sides of the front end of the support plate are respectively provided with a renal pelvis model, the front end of the support plate is provided with a bladder model located below the two renal pelvis models, the left and right sides of the front end of the support plate are respectively provided with ureter models located between the renal pelvis models and the bladder model, the upper end of the ureter model is communicated with the corresponding side of the renal pelvis model and the lower end is communicated with the bladder model, the lower end of the bladder model is communicated with a urethra model, a Y-shaped moving groove is opened on the support plate, the renal pelvis model, the ureter model, the bladder model and the urethra model are provided with a communication groove communicated with the moving groove, the left and right sides of the moving groove are respectively provided with front and rear axial sliding columns, and the front end of the sliding column is detachably connected with a calculus model; this structure is simple, novel in design, convenient to use and high in practicality.

The invention relates to the technical field of grabbing, and particularly discloses a urinary calculus grabbing device which comprises a forceps handle, one end of the forceps handle is fixedly connected with a forceps body, the surface of the forceps handle is fixedly connected with a pull rod, and the surface of the pull rod is provided with a first spring; the device further comprises a grabbing assembly, the grabbing assembly is arranged on the surface of the pull rod, and the grabbing assembly grabs and takes out the stone crushed by the laser from the kidney; the stone cutting assembly is arranged on the side face of the grabbing assembly, the stone cutting assembly cuts the large stone grabbed by the grabbing assembly, and the grabbing assembly provides inner supporting force for the stone cutting assembly to cut the large stone; the grabbing assembly comprises a connecting rod, one end of the connecting rod is fixedly connected to the surface of the pull rod, the other end of the connecting rod is fixedly connected with a conical block, and one end of the conical block is fixedly connected with a baffle. Due to the stability of the four-claw structure of the nephroscope forceps, the mucous membranes of the renal pelvis and the kidney can be better protected in the percutaneous nephroscope operation process, unnecessary injuries are reduced, and the risk of postoperative complications is further reduced.

The pressure demodulation control system comprises a light source, the light source is connected with an optical fiber coupler, and the optical fiber coupler is connected with an optical fiber Fabry-Perot sensor; the optical fiber coupler is also connected with an optical path demodulation module; the optical path demodulation module is connected with a lower computer, and the lower computer is connected with a peristaltic pump and an upper computer. Wherein the light source, the optical fiber coupler, the optical path demodulation module and the lower computer are integrated on the shell. The invention further discloses a pressure demodulation control method for the internal pressure of the renal pelvis. According to the pressure demodulation control system and method for the internal pressure of the pelvis, a demodulation light path is applied to the field of biomedical sensing and is combined with an optical fiber Fabry-Perot sensor, and the problems that in the prior art, testing data of the internal pressure of the kidney are inaccurate, and the response speed is insufficient are solved.

The invention relates to the technical field of medical instruments, and particularly discloses an insertion part, an endoscope, an intrarenal pressure detection system and an endoscope processing system.The insertion part comprises an insertion part body and a diaphragm, the diaphragm is movably arranged on the outer side of the far end of the insertion part body, and the diaphragm is provided with a hard area and a soft area; a mark is arranged on the hard area and / or the soft area, a camera module and a window opening corresponding to the camera module are arranged in the insertion part body, and the mark can be captured by the camera module; according to the scheme, when the far end of the insertion part stretches into the renal pelvis, the diaphragm is elastically deformed under the action of intrarenal pressure, and the hard area moves and / or deflects accordingly, so that the hard area has corresponding size and / or form change in the view-finding window of the camera module, the change can be quantified through image processing, and the accuracy of the change is improved. Therefore, the pressure in the renal pelvis can be measured conveniently, errors caused by deformation of the diaphragm can be eliminated, and the accuracy of measuring the pressure in the kidney is improved.

This utility model discloses a disposable renal pelvis endoscope with integrated negative pressure suction and perfusion functions. It includes an endoscope handle with a forward-extending insertion tube at its tip. A Luer male connector (A-type) is located on the side of the handle, and a second channel is provided through the insertion tube. An instrument section with a cavity is located at the outer end of the A-type Luer male connector away from the handle, and the instrument section has a through-connected A-type Luer female connector, a B-type Luer male connector, and a fiber optic basket entry channel. A three-way valve connector is located on the B-type Luer male connector, which has separately arranged B-type Luer female connector, a water injection connector, and a negative pressure suction lithotripsy connector. The three-way valve connector also has a switch handle for controlling the connection between the B-type Luer female connector, the water injection connector, and the negative pressure suction lithotripsy connector. This utility model achieves dual functions of perfusion and negative pressure suction lithotripsy by incorporating a three-way valve connector in the instrument section.

The invention relates to the technical field of medical instruments, and particularly discloses an insertion part, an endoscope, an intrarenal pressure detection system and an endoscope processing system.The insertion part comprises an insertion part body and an elastic covering film, a camera module is arranged in the insertion part body, the elastic covering film is connected to the outer side of the far end of the insertion part body and is made of a transparent material, and the camera module is arranged in the elastic covering film. A deformation mark is arranged on the elastic covering film, is positioned in a view-finding window of the camera module, and can be captured by the camera module; when the far end of the insertion part stretches into the renal pelvis, the elastic covering film elastically deforms under the action of intrarenal pressure, then the deformation mark changes, the change of the deformation mark can be quantified through image processing, and therefore the pressure in the renal pelvis can be conveniently measured, a micro pressure sensor does not need to be embedded in the far end of the insertion part in the mode, and the operation is simple and convenient. And meanwhile, errors caused by in-vitro measurement can be avoided, so that the accuracy and the timeliness of measuring the intrarenal pressure are improved.

The invention provides application of plasma-derived EVs after RIPC in preparation of a medicine for preventing and / or treating kidney injury, and belongs to the technical field of biological medicine. The RIPC plasma-derived EVs provided by the invention can be used for preparing medicines for preventing and / or treating kidney injury caused by unilateral ureteral obstruction combined with pelvic lipopolysaccharide (LPS) injection. In-vivo and in-vitro experiments prove that compared with normal plasma-derived EVs, the plasma-derived EVs after RIPC shows a remarkable and better protection effect on U-L model kidney injury and LPS-induced HK-2 cell injury. Therefore, by taking the EVs from the plasma after RIPC as the active ingredient, the application has a wide prospect in developing a novel treatment medicine for treating the obstruction complicated with the inflammatory renal injury.

The application discloses an intelligent pressure control perfusion and suction system, which at least comprises a master control unit, a perfusion device, a suction device, a guide sheath, an endoscope sleeved on the guide sheath and a cavity pressure measuring device. The perfusion device comprises a first motor and a perfusion pipeline connected with the endoscope, and the first motor is connected with the perfusion pipeline. The suction device comprises a second motor and a suction pipeline connected with the guide sheath, and the second motor is connected with the suction pipeline. The cavity pressure measuring device is a pressure sensor arranged on the endoscope penetrating through the guide sheath, which is used for monitoring the current renal pelvis cavity pressure value under the action of the perfusion mode and the suction mode. The pulse frequency of the corresponding motor is controlled by the master control unit to control the perfusion flow into the cavity, and the duty cycle of the corresponding motor is controlled to control the suction flow out of the cavity, so that the renal pelvis cavity pressure reaches a dynamic balance, and the circulation level balance of the perfusion inflow and the suction outflow is achieved.

The application discloses a percutaneous nephrostomy device, a robot system and a method, the device comprising a puncture base and a syringe, a first driving member, a second driving member, a first force sensor and a second force sensor arranged on the puncture base respectively; the syringe comprises a syringe barrel, a plunger rod, an outer sleeve and a needle, the syringe barrel is filled with contrast medium, the plunger rod is arranged in the syringe barrel, the syringe barrel and the outer sleeve are in communication, the needle penetrates through the outer sleeve, the part of the needle in the outer sleeve is provided with a through hole, and the first end of the needle is closed; the first driving member is connected with the needle through the first force sensor, the second driving member is connected with the plunger rod through the second force sensor, the first driving member is configured to drive the needle to move in a first direction, and the second driving member is configured to drive the plunger rod to move in a second direction. When the device is applied, the positioning accuracy of the puncture end point of the needle under the condition that the renal pelvis is not filled with water can be improved, and the accuracy and safety of the percutaneous nephrostomy operation can be improved.

The utility model relates to the technical field of medical instruments, and discloses a plugging suite for urinary system calculus breaking and removing, which comprises two plugging devices, an umbrella hook and an umbrella claw, the number of the plugging devices is two, the plugging devices can be divided into two sizes of diameter specifications of 24Fr and 15Fr, the sizes of the plugging devices are different, but the shapes of the plugging devices are consistent, and the umbrella hook is connected with the umbrella claw. The umbrella hooks and the umbrella claws are matched with the umbrella hooks and the umbrella claws, the umbrella diameters of the umbrella hooks and the umbrella claws are 24Fr and 15Fr, and the plugging device comprises a cavity container, a hole and an annular groove. By constructing the cavity, a safe operation area is constructed in the pelvis or the bladder, and damage to mucous membranes during laser lithotripsy is avoided. And the cavity conforming to the ergonomic function type appearance can be used as a plugging device for the joint of the glenoid tube, stones deposited at the joint due to water flow irrigation after stone crushing are collected, and the situation that the stones deposited at the joint of the glenoid tube are cleaned after stone crushing is avoided. On one hand, the extrusion damage to the kidney caused by the operation of searching the deposited calculus at the joint of the glenoid canal through the percutaneous nephroscope each time is reduced.

The present invention provides a Luther knot stapler, a prefabricated Luther knot tying device and an automatic knot tying method thereof. The Luther knot stapler of the present invention is used in conjunction with a prefabricated Luther knot. During surgery, it eliminates the need for doctors to tie knots during the surgical anastomosis process, achieving rapid and efficient anastomosis and greatly reducing the surgical time. The prefabricated Luther knot has a wide range of applications and can be used for suturing the renal pelvis and ureter, as well as for surgeries that must use needles and threads. The Luther knot stapler of the present invention has a simple structure, is easy to operate, and can be recycled and reused, making it economical and highly practical. The prefabricated Luther knot tying device of the present invention can automatically tie the prefabricated Luther knot on the wire winding column through a series of operating steps, thereby enabling mass industrial production of the wire winding column wound with the prefabricated Luther knot. Moreover, the winding efficiency is high, reducing a large amount of labor costs.

The utility model relates to the field of medical instruments, in particular to a novel ureter stent which comprises a renal pelvis section, a ureter section, a connecting line and a bladder section, the renal pelvis section is placed at a renal pelvis opening of a human body, the ureter section is placed in a ureter of the human body, the bladder section is placed in a bladder of the human body, and the renal pelvis section is connected with the ureter section. One end of the connecting line is connected with the ureter section, and the other end is connected with the bladder section. According to the novel ureteral stent, the ureteral section and the bladder section are connected through the connecting line, so that the bladder section can be in a semi-free state, stimulation to bladder mucosa is reduced, the diameter of the connecting part of the ureteral section and the bladder section is reduced due to the design of the connecting line, and the anti-reflux mechanism of a body is reserved; the problems of bladder stimulation symptoms and lumbago caused by a traditional ureter are solved.

The ureteral catheter applied to the percutaneous nephroscope comprises a balloon catheter, an inner tube, a liquid injection channel and a connecting part, the balloon catheter comprises a hollow outer tube and a balloon, and the balloon is used for blocking the connecting position of a renal pelvis and a ureter after being expanded; the inner tube is hollow and is used for injecting liquid into the renal pelvis; the inner tube is arranged in the balloon catheter in a penetrating manner; a liquid injection channel is formed between the outer tube and the inner tube and is used for expanding the balloon; the connecting part is detachably connected with the outer pipe and the inner pipe; when the connecting part is taken down, the cystoscope is withdrawn; the connecting part is used for being connected with an external injector, and the external injector is used for injecting liquid into the inner pipe and / or the liquid injection channel. The utility model has double functions, not only can artificial hydronephrosis be formed, but also the joint of the renal pelvis and the ureter can be blocked, and calculi can be prevented from moving downwards. Meanwhile, the connecting part at the rear end of the ureteral catheter is detachable, and the cystoscope can be taken out in time by detaching the connecting part before the patient is turned to the prone position.

The invention discloses an insertion tube and a negative pressure suction sheath, and relates to the technical field of medical instruments.The insertion tube comprises a first tube section and a second tube section, the first tube section is arranged at the far end of the second tube section and communicates with the second tube section, the first tube section is provided with a conduction channel, the conduction channel penetrates through the side wall of the first tube section, and under the condition that an insertion part is inserted into the insertion tube, the conduction channel is communicated with the side wall of the first tube section; a gap is formed between the inner wall of the second pipe section and the insertion part, the conduction channel communicates with the gap, and the inner wall of the first pipe section can be in sealing fit with the outer wall of the insertion part. The conduction channel is independent of the position where the insertion part is located, a medium can flow in from the side wall of the first pipe section, the insertion part can stretch out through the end of the first pipe section, the medium flowing into the body cannot interfere with the suction effect of the insertion part, the blocking effect of the medium on calculus particles in the injection process is reduced, and the injection efficiency is improved. And stone particles are prevented from being pushed into the deep part of the renal pelvis by the medium in the injection process.