4065results about "Suction devices" patented technology

A device may include a flexible tube comprising: a distal end, a proximal tip, the proximal tip comprising a suction line extension being configured for placement in a uterine cavity of a uterus after childbirth, a tube center of the flexible tube; and at least one lumen around the tube center, the at least one lumen comprising a suction line, the suction line being in communication with a source of negative pressure and the suction line extension, the suction line extension being configured for applying the negative pressure to the uterine cavity using the source of the negative pressure thereby causing mechanical hemostasis of bleeding blood vessels of a uterine wall of the uterine cavity. Embodiments include an anchoring mechanism being proximate to the suction line extension along the flexible tube, the anchoring mechanism being configured for maintaining the suction line extension in a desired position within the uterine cavity.

The utility model provides a guiding device and dilator for improving pressure measurement accuracy, the guiding device comprises a pressure measurement sheath, the pressure measurement sheath comprises a handle and a sheath tube, the size and shape of the sheath tube are suitable for entering a target area in a body through a body lumen, the sheath tube longitudinally extends from a near end to a far end, the sheath tube defines a first lumen suitable for entering of an external instrument, and the first lumen is communicated with the handle. A pressure measuring tube cavity longitudinally extending from the near end to the far end is formed in the tube wall of the sheath tube, a pressure measuring opening used for sensing the pressure of liquid in the body is formed in the far side of the pressure measuring tube cavity, and the dilator is arranged in the first tube cavity in a supporting and penetrating mode so that the pressure measuring sheath can enter the body conveniently. And the dilator is provided with a blocking part for limiting foreign matters from entering the pressure measuring tube cavity through the pressure measuring port.

The ureter and urine bag comprises a urine bag body, a spiral pipe, a connecting pipe, a threaded connector pipe and a urine guiding pipe, the threaded connector pipe comprises a pipe body and an insertion pipe, internal threads with the thread pitch being 1.8-2.2 mm are machined on the inner wall of the pipe body, external threads matched with the internal threads are machined on the outer wall of the insertion pipe, and the spiral pipe is connected with the connecting pipe. Two groups of wing plates are symmetrically arranged on the outer wall of the cannula to provide rotating acting points, and a collecting assembly is integrated on the side wall of the urine bag and used for aseptically collecting urine samples. Traditional plug-pull type connection is replaced by a precise thread fit structure, a clear rotating force application point is provided for medical staff, operation is labor-saving and convenient, connector pollution is avoided, the urinary tract infection risk is effectively reduced, and the nursing comfort of a patient is improved.

The invention relates to the technical field of medical care, and discloses an intelligent oral sputum suction system based on multi-parameter feedback and a self-adaptive pressure adjusting method.The method comprises the steps that in a pipeline cleaning state, a standard load lookup table of working parameters of a negative pressure pump and pipeline negative pressure is established; in the sputum suction operation process, a first measurement value of the negative pressure of the pipeline and a second measurement value of the working parameters of the negative pressure pump are obtained in real time; according to the first measurement value, determining a corresponding negative pressure pump working parameter from the standard load lookup table as a standard working parameter, and when the second measurement value is higher than the standard working parameter, determining a compensation amount for correcting the first measurement value based on a difference value between the second measurement value and the standard working parameter, compensating the first measurement value according to the compensation amount to obtain a calibration negative pressure value; and if the calibrated negative pressure value exceeds the preset safety negative pressure upper limit, the working parameters of the negative pressure pump are adjusted to reduce the actual negative pressure. The problem of damage caused by inaccurate reading of the sensor in the prior art is effectively solved.

The present application relates to the technical field of medical devices, and discloses a flexible sputum scab remover for pneumology department, which comprises an outer rod, the end of the outer rod is provided with a sputum suction head, the sputum suction head and the inner part of the outer rod are provided with a flow guide pipe, the inner part of the outer motor stator fixedly connected with the outer rod is rotatably connected with an inner rotor sleeve ring, the inner part of the inner rotor sleeve ring is threadedly connected with a threaded sleeve rod, and the end of the threaded sleeve rod is movably connected with an extension rod; the rotating ring is driven to rotate by the annular motor, the flexible brush rod is driven to rotate by the rotating ring, the flexible brush rod is used for cleaning the respiratory tract by high-speed rotation, the flexible brush rod is used for scraping, the damage degree of the respiratory tract is low due to the elastic colloid material of the flexible brush rod, the contact efficiency with sputum scab is improved by high-speed rotation, the flexible brush rod is used for cleaning, the cleaning efficiency and the cleaning effect of the device are effectively ensured, the damage of the flexible brush rod to the respiratory tract is reduced, and the cleaning safety of the flexible brush rod is improved.

The invention provides a digestive tract reconstruction device for protecting an anastomotic stoma, and relates to the field of medical instruments. The device comprises a nail anvil assembly, a nail bin assembly, a connection closing assembly and an anastomotic stoma protection assembly. A rotary guide mechanism is arranged in the nail bin assembly and drives the nail anvil assembly to rotate by a preset angle during axial movement, so that the short shaft of the oval nail anvil is aligned with the long shaft of the anastomotic stoma and exits without interference. And barbs are arranged in the cutting knife to hang and cut tissues, so that the nail anvil can be greatly overturned. The anastomotic stoma protection assembly comprises a degradable gasket and a folding flow guide tube, and the flow guide tube retreats and is unfolded along with the nail anvil to cover the anastomotic stoma and isolate pollutants. The mechanical injury of the anastomotic stoma when the nail anvil is withdrawn can be avoided, and the risks of infection, bleeding and leakage of the anastomotic stoma after operation are effectively reduced.

The utility model discloses a thrombus aspiration plugging sheath system based on a special-shaped cavity, which comprises a vacuum device, an aspiration plugging sheath, an aspiration plugging sheath and an aspiration plugging sheath, and is characterized in that the vacuum device comprises a negative pressure needle cylinder and a piston buckle arranged on the side wall of the negative pressure needle cylinder; the balloon sheath tube comprises a tube body, a balloon used for blocking is arranged at the far end of the tube body, a connector connected with the vacuum device is arranged on the side of the near end of the tube body in a supporting mode, and a plurality of special-shaped cavities are formed in the tube body; the thrombus dragging instrument is used for blocking blood flow to reduce blood loss during thrombus suction and intercepting the thrombus to prevent the thrombus from escaping when the thrombus is dragged; the vacuum device is arranged on the side branch of the near end of the balloon sheath tube, and the thrombus dragging instrument is arranged in the balloon sheath tube. According to the embodiment of the utility model, the balloon filling opening and the thrombus suction opening are formed in the catheter body, a multi-cavity structure is adopted, the balloon sheathing canal blocks blood flow, and the thrombus dragging instrument is matched with a vacuum device to suck, drag and take out thrombus.

The invention relates to the technical field of medical monitoring, in particular to an intelligent monitoring and health management system for liver, gall and pancreas postoperative drainage fluid, which comprises a data acquisition module for acquiring core specific indexes of liver, gall and pancreas special drainage fluid, visual images of the drainage fluid, dynamic flow and physiological data of a patient; the intelligent analysis module constructs a hepatobiliary pancreatic postoperative exclusive multi-modal model, deeply couples postoperative disease course time sequence characteristics to identify risks at different stages after the operation, and triggers risk assessment when the operation is abnormal; the early warning module is provided with a light, medium and heavy three-level mechanism, and carries out resource adaptation type grading accurate pushing to a responsible physician and a nurse station terminal in combination with a medical care real-time load and a spatial distance. The health management module fuses individual features of the patient and real-time monitoring data, and constructs a personalized rehabilitation scheme in combination with rehabilitation feedback of the patient; and the data synchronization module transmits model update parameters through an encryption channel, and perfects the complete-cycle health archive of the patient. Therefore, the problems that in the prior art, an early warning mechanism is rigid, and data security and full-period management are insufficient are solved.

Introduced here are pressure-mitigation systems able to mitigate the pressure applied to a human body by the surface of an object (also referred to as a “structure”). A controller device (or simply “controller”) can be fluidically coupled to a pressure-mitigation device that includes a series of selectively inflatable chambers. When a pressure-mitigation device is placed between a human body and a surface, the controller can continuously, intelligently, and autonomously circulate fluid through the chambers of the pressure-mitigation device. Normally, the controller circulates air through the chambers of the pressure-mitigation device, though the controller could circulate another fluid, such as water or gel, through the chambers of the pressure-mitigation device. The controller may cause the chambers to be selectively inflated, deflated, or any combination thereof.

Systems and methods for delivering a gas, such as nitric oxide, are provided. In some embodiments, systems and methods are provided for delivering a gas, such as nitric oxide, in the form of nanobubbles and / or a dissolved gas using a liquid medium.

The invention relates to the technical field of medical instruments, in particular to a negative pressure flushing type rectal anastomotic fistula treatment device with a blocking balloon, which comprises a drainage tube, a balloon, an annular sponge sleeve, a water injection tube and a filling tube, the balloon is arranged at the near end of the drainage tube, and the filling tube is communicated with the balloon and used for filling media into the balloon to block an enteric cavity; the annular sponge sleeve wraps the outer side of the drainage tube below the balloon, and a side hole II is formed in the section, wrapped by the annular sponge sleeve, of the drainage tube; the water injection pipe is arranged on the drainage pipe and used for injecting flushing fluid into the annular sponge sleeve area. The far end of the drainage tube is used for being connected with a negative pressure device so that a continuous negative pressure drainage environment can be formed in the annular sponge sleeve area, the negative pressure flushing type rectum anastomotic fistula treatment device with the blocking balloon does not need to be placed under an endoscope and only needs to be placed under direct vision of an anoscope, and operation is easy; near-end intestinal juice can be blocked, and the influence of the intestinal juice on healing of an anastomotic stoma is reduced.

The invention relates to the technical field of drainage liquid sudden increase early warning, in particular to a drainage liquid sudden increase rapid early warning system based on artificial intelligence. The system obtains drainage volume data and various physiological indexes in real time; according to the difference between the drainage volume data changes of the current patient and the preset similar historical patient and the drainage volume data change condition of the current patient, the drainage abnormality degree is obtained, and the drainage abnormality time period is determined; according to the duration of the abnormal drainage time period of the current patient at the current moment, the change of the abnormal drainage degree in the abnormal drainage time period and the abnormal condition of the physiological indexes, the abnormal drainage degree is determined; and acquiring an early warning degree to perform early warning on the drainage sudden increase abnormity of the current patient at the current moment according to the occurrence condition of the drainage abnormal time period of the current patient at the current moment, the overall abnormal condition of the physiological indexes and the change of the interval duration of the adjacent drainage abnormal time periods. According to the invention, early warning is accurately carried out on drainage sudden increase abnormity of the current patient, so that the harm of drainage abnormity is effectively reduced.

The invention aims at providing a breast surgery retractor capable of avoiding skin scald, and relates to the field of medical surgical instruments, the breast surgery retractor comprises a fixing device, the fixing device comprises a first sliding rail, a supporting rod, a limiting stopper and a pressing plate, and the fixing device is used for adjusting the position and angle of the surgery retractor, so that the surgery retractor is more practical; the auxiliary device comprises a second sliding block, a second sliding rail, a third sliding rail and a first auxiliary drag hook assembly and assists the heat dissipation plate in traction, and the operation difficulty is reduced; the isolation device comprises a second auxiliary drag hook assembly, a traction rod, a shifting block, a sleeve, a connecting rod and a diaphragm, the skin can be isolated through the diaphragm, and the skin is prevented from being scalded due to heat conduction of metal. The problem that a metal drag hook easily scalds the skin is solved.

The invention relates to the technical field of postoperative nursing devices, in particular to a clinical postoperative nursing drainage device which comprises a shell, a supporting disc is rotationally arranged in the shell, a plurality of arc-shaped plates are elastically and slidably connected to the periphery of the supporting disc in the radial direction, and a drainage tube is arranged in the shell in a penetrating mode and surrounds the arc-shaped plates by a circle to form a reducing ring. When the drainage tube is pulled, the arc-shaped plates on the periphery of the supporting disc can elastically slide in the radial direction, so that the diameter of a reducing ring formed by the drainage tube is reduced, pulling force energy is absorbed, the pulling force borne by a surgical incision is reduced, and the pain of a patient is relieved; when the drainage tube is blocked due to the fact that the inner diameter is reduced due to pulling deformation, hydrops can be dredged through vibration.

The invention discloses a self-breaking outer drainage tube, and relates to the technical field of medical instruments, the self-breaking outer drainage tube comprises a tube body, and the tube body comprises a drainage part, a breaking part, a leading-out part and a puncture part; the drainage part and the fracture part are both made of degradable materials; the hole wall thickness of the circulation hole at the fracture part is smaller than the hole wall thickness of the circulation hole at the drainage part; during surgical operation, the degradable inner drainage part is placed in the pancreatic duct, the fracture part crosses the anastomotic stoma by 7-8 cm and crosses the biliary-intestinal anastomotic stoma, and the leading-out part walks in the enteric cavity to a proper position, penetrates out of the intestinal wall and is led out of the body through the abdominal wall. Cutting the puncture part to expose the outlet of the circulation hole, and discharging the body fluid through the circulation hole; after a certain period of time after the operation, the fracture part is automatically fractured under the action of pancreatic juice, the leading-out part is pulled out, the degradable drainage part continues to be degraded in the body and maintains the drainage function, and finally the drainage part is absorbed by the body or discharged out of the body without being taken out through the operation.

The invention belongs to the technical field of medical instruments, and particularly discloses a drainage device for critical patients, which comprises a fixing ring, a communicating ring arranged above the fixing ring, a socket ring arranged above the communicating ring, a plurality of drainage bottles placed at the bottommost part, and a multi-stage reduction gear set arranged below the fixing ring, a plurality of radially arranged commutation holes are annularly and uniformly formed in the communicating ring, each commutation hole is communicated with the drainage bottle through a commutation pipe, a drainage pipe is inserted into the upper end of the socket ring, and an intermittent mutation type commutation mechanism is arranged in the fixing ring. Through the intermittent sudden change type conversion mechanism, intermittent instantaneous switching of the drainage pipeline among a plurality of independent collection containers is realized, so that a continuous drainage process is discretized into a plurality of independent time slices for sample storage, and dynamic process information of drainage liquid characters is completely reserved; meanwhile, the same power source is used for driving the odor purification unit in a linkage mode, and the problem of odor dissipation in the drainage process is efficiently solved.

The invention relates to the technical field of ascites drainage, in particular to an ascites drainage device which comprises a puncture tube, the output end of the puncture tube is fixedly connected with a one-way valve, the output end of the one-way valve is fixedly connected with a separation tube, a drainage opening is formed in the bottom of the separation tube, and the output end of the drainage opening is fixedly connected with a drainage tube. The output end of the drainage tube is fixedly connected with a liquid accumulation bag, a filter cartridge is arranged in the separation tube, and the input end of the filter cartridge is communicated with the input end of the separation tube. The spiral flow deflectors which are uniformly arranged along the central axis are arranged at the input end of the filter cartridge, so that ascites can be guided to form a spiral flowing state, and solid substances are always kept in dynamic distribution of'spirally advancing along the wall 'by virtue of centrifugal force; meanwhile, when the filter cartridge is blocked and the pressure rises to a preset value, the second T-shaped piston rod can extrude the titanium alloy spring to slide, so that ascites enters the hole-free groove to expand the internal space of the filter cartridge, the pressure is balanced, and time is bought for cleaning blockages.

The utility model relates to the field of medical instruments, in particular to a jaw cyst windowing and pressure reducing device. The device comprises a guide part, a connecting part and a base which are sequentially arranged from top to bottom. And the small-diameter section of the guide part is positioned at the upper part. The connecting part is a cylinder, and the diameter of the connecting part is smaller than that of the bottom of the guide part. The short axis size of the base is larger than the diameter size of the bottom of the guide part. The bottom of the base is provided with a through hole penetrating to the position above the guide part, and a drainage channel is formed. The springback characteristic of soft tissue in the bag cavity is utilized, so that the guide part and the connecting part can be fixed in the bag cavity and cannot fall off; meanwhile, through the elliptic cylindrical base, the base is effectively prevented from entering the bag cavity, the shape of the vestibular groove is met, and the wearing is free of foreign body sensation and more comfortable.

Systems, devices, and methods for processing whole blood are disclosed. The system includes a reusable separation device, a disposable fluid circuit, and a controller configured to detect a flow restriction within a leukoreduction filter and to determine the cause of the flow restriction.

A control method and control apparatus for a ventricular auxiliary apparatus and a ventricular auxiliary apparatus. The present invention pertains to the field of medical instruments. The ventricular auxiliary apparatus comprises a first component and is provided with a first control mode and a second control mode. The method comprises: acquiring a control operation for the first component, and controlling, in response to the control operation, the operation of the first component in a manner not restricted by constraints, wherein the constraints are constraints that apply when the first component operates in the second control mode. In the second control mode, the operation of the first component is restricted by the constraints, while in the first control mode, the operation of the first component is not restricted by the constraints. Compared to the second control mode, the first control mode masks the restriction of the operation parameters of the first component by the constraints, so that the degree of freedom of controlling the first component is improved, facilitating the adjustment and testing of the operation of the first component.

A method of uterine hemostasis involves inserting a suction line of a postpartum hemorrhage mitigation device through a cesarian incision into the uterine cavity, guiding the suction line through the cervix and into the vagina, positioning an anchoring mechanism of the device adjacent the internal cervical OS of the uterine cavity, closing the cesarian incision to enclose the suction line within the uterine cavity, and connecting the suction line to a negative pressure source that introduces negative pressure to the uterine cavity via the suction line, thereby causing contraction of the uterus and evacuation of fluid from the uterus via the suction line extension. Upon completion of a treatment period, the negative pressure source is disconnected, and the suction line and anchoring mechanism are extracted from the uterus through the cervical canal and the vagina.

A negative pressure wound therapy device can include a negative pressure source configured to be connected, via a fluid flow path, to a wound, a valve positioned in the fluid flow path and configured to, in an open state, permit supply of negative pressure from the negative pressure source upstream of the valve and, in a closed state, block supply of negative pressure from the negative pressure source upstream of the valve, a flow restrictor positioned in the fluid flow path, and a pressure sensor configured to measure a pressure differential across the flow restrictor. The device can include control circuitry configured to, in a normal operational mode, cause the valve to be in the open state and, in a test mode, perform at least one of a leak test, a flow test, or an excessive pressure test.

The utility model discloses a hemodialysis catheter interface fixing structure which comprises a supporting plate and a plurality of fixing assemblies used for fixing a hemodialysis catheter, detachable bandage assemblies are arranged on the left side and the right side of the supporting plate, and the fixing assemblies are installed on the supporting plate through installation assemblies. The detachable bandage assembly comprises an installation groove formed in the front face of the supporting plate, the installation groove penetrates through the supporting plate front and back, an installation block is inserted into the installation groove, a middle rod is fixedly connected between the front face and the back face of the inner wall of the installation block, and the surface of the middle rod is sleeved with a bandage. According to the fixing structure for the connector of the hemodialysis catheter, the bandage is designed to be of a structure capable of being detached from the supporting plate, only the installation block needs to be inserted into the installation groove during installation, only the limiting block needs to be pressed during detachment, operation is convenient and rapid, and therefore the bandage can be replaced and cleaned after being polluted.

An introducer sheath may include a valve hub and an elongate shaft extending from the valve hub. The valve hub may include a proximal end defining a first port having a first port entry opening and a second port having a second port entry opening. The introduce sheath may include a first seal disposed at the first port and aligned with the first port entry opening and a second seal disposed at the second port and aligned with the second port entry opening. The first port may be parallel with the second port. The valve hub may couple with a stabilizer configured to couple with and axially fix a medical device extending through one or both of the first port and the second port.

The invention discloses a gastrointestinal decompression nursing device and a gastrointestinal tract pressure supervision system, and belongs to the technical field of medical nursing. A gastrointestinal decompression nursing device comprises a suction tank, a regulation and control box, a stomach tube and a flexible arm band, and the regulation and control box comprises a data preprocessing module and a control module; a plurality of flexible resistance type sensors are distributed in the flexible arm band at equal intervals, an in-vivo capsule is arranged at the front end of the stomach tube, and a pressure sensor and a three-axis accelerometer are arranged in the in-vivo capsule. According to the gastrointestinal nursing pressure reducer, the problem that an existing gastrointestinal nursing pressure reducer cannot achieve pressure nursing and supervision work according to different patients is solved, the in-vivo capsule is integrated with the pressure sensor, the triaxial accelerometer and the impedance sensor, and the pressure in an intestinal tract cavity, the peristalsis frequency and the content impedance can be synchronously collected; in combination with body surface pressure gradient data of the flexible arm band, improper treatment caused by misjudgment is avoided, and serious complications such as intestinal perforation and bleeding caused by delayed treatment are avoided.

The invention provides a suction assembly, an operation part and an endoscope, relates to the technical field of endoscopes, and solves the problem of low assembly efficiency of an existing suction assembly. The suction assembly is applied to an operation part of the endoscope and comprises a suction tube and a butt joint piece, and the near end of the suction tube is axially inserted into a cavity of the butt joint piece and can be adjusted between a first insertion depth and a second insertion depth relative to the cavity; under the first insertion depth, the negative pressure suction hole formed in the butt joint piece is communicated with the large air hole through a cavity, a near-end pipe opening of the suction pipe is located in the cavity, and the suction assembly is in a non-suction working state; under the second insertion depth, the near-end pipe opening of the suction pipe is communicated with the negative-pressure suction hole through the cavity, the near end of the suction pipe is in sealing fit with the cavity on a communication path between the negative-pressure suction hole and the large air hole so that fluid of the negative-pressure suction hole and fluid of the large air hole can be disconnected, and the suction assembly is in a suction working state. The suction pipe plays a switching role of an existing valve rod, a suction valve or a valve rod can be omitted, and the structure and the assembling process of the suction assembly are simplified.

The utility model discloses a novel abdominal post-operation walking aid, which relates to the technical field of post-operation walking aid and comprises a U-shaped frame, a height adjusting mechanism arranged on the U-shaped frame, a longitudinal beam arranged on the height adjusting mechanism, a supporting plate fixedly mounted on the upper surface of the longitudinal beam, a soft cushion fixed on the upper surface of the supporting plate and a cross beam fixedly mounted on the upper surface of the longitudinal beam. A cross beam is arranged on the U-shaped frame, a position adjusting mechanism is arranged on the cross beam, a grip is arranged on the position adjusting mechanism, a hanging mechanism is arranged on the cross beam, a support is fixedly installed on the surface of the front side of the U-shaped frame, and a protection mechanism is arranged on the support. The device can support the upper part of the body of a patient and can replace manual supporting to assist the patient in movement of the abdominal operation, the patient can still be correspondingly treated in the movement process, protection is provided for the patient, and the patient is prevented from catching a cold in the movement process.

Embodiments of negative pressure wound therapy systems and methods are disclosed. In one embodiment, an apparatus includes a housing, a negative pressure source, a canister, an antenna, and one or more controllers. The negative pressure source can provide negative pressure via a fluid flow path to a wound dressing. The canister can be positioned in the fluid flow path and collect fluid removed from the wound dressing. The antenna can be supported by the housing and wirelessly communicate with an electronic device. The antenna can be oriented in the housing to face downward toward the ground when the negative pressure source is providing negative pressure. The one or more controllers can activate and deactivate the negative pressure source and transmit first data to the electronic device using the antenna or receive second data from the electronic device using the antenna.

Introduced here are pressure-mitigation systems able to mitigate the pressure applied to a human body by the surface of an object (also referred to as a “structure”). A controller device (or simply “controller”) can be fluidically coupled to a pressure-mitigation device that includes a series of selectively inflatable chambers. When a pressure-mitigation device is placed between a human body and a surface, the controller can continuously, intelligently, and autonomously circulate fluid through the chambers of the pressure-mitigation device. Normally, the controller circulates air through the chambers of the pressure-mitigation device, though the controller could circulate another fluid, such as water or gel, through the chambers of the pressure-mitigation device. The controller may cause the chambers to be selectively inflated, deflated, or any combination thereof.

A urinary collection device includes an outer surface and a generally fluid-permeable core that communicates fluidically with an aspiration tube. The outer surface includes an obverse opening to allow urine to flow into the fluid-permeable core when the device is positioned supralabially. On the reverse may be an actuatable fastener configured to retain the device in a reverse-folded intralabial position. In this manner the device may be placed supralabially or intralabially for urine collection as appropriate. The core may include a first knit fabric layer and a second knit fabric layer joined by a plurality of fibers, the fibers being oriented generally to extend from an obverse to a reverse position to thereby result in flow channels through the core.