13 results about "Vacuum extraction" patented technology

The invention relates to a fetal head suction midwifery device for the obstetrics and gynecology department and belongs to the technical field of medical instruments. The fetal head suction midwifery device for the obstetrics and gynecology department comprises a supporting cylinder, an adsorption head and an adjusting assembly, a piston is slidably connected to an inner cavity of the supporting cylinder, and the two sides of the piston are connected with an air suction cylinder and an extension cylinder respectively; the adsorption head annularly surrounds the periphery of the supporting cylinder and comprises a fixed cylinder and an elastic cylinder, the fixed cylinder is connected with the supporting cylinder, and the elastic cylinder is arranged on the side, away from the supporting cylinder, of the fixed cylinder; the adjusting assembly is arranged in an inner cavity of the fixing cylinder and comprises a limiting cylinder, an adjusting block and a plurality of connecting ropes, the limiting cylinder is connected with the fixing cylinder, a plurality of clamping grooves distributed in the axial direction of the limiting cylinder are formed in the inner wall of the limiting cylinder, the adjusting block is slidably connected with the inner cavity of the limiting cylinder, a clamping rod is arranged in the adjusting block and used for being clamped with the clamping grooves, and one ends of the connecting ropes are connected with the adjusting block. The other end is connected with the elastic cylinder; and the connecting rope is configured to be tightened under stress so as to reduce the diameter of the elastic cylinder, or released under unloading so as to increase the diameter of the elastic cylinder.

The present application relates to the technical field of breast pumps, and in particular, to a wearable integrated breast pump. The wearable integrated breast pump comprises a milk collection cup, a horn-shaped shield disposed at a cup mouth of the milk collection cup, an elastic diaphragm, and a main unit. The horn-shaped shield extends towards the interior of the milk collection cup to form a flow passage section. The flow passage section is formed with a three-way end, and the three-way end comprises a first port, a second port, and a third port. The first port is in communication with the flow passage section, the second port interfaces with the elastic diaphragm, and the third port is in communication with a milk collection container and is provided with a check valve. The elastic diaphragm is integrally connected to the milk collection cup, and the elastic diaphragm correspondingly forms a vacuum chamber. The main unit is detachably connected to the outside of the milk collection cup. The milk collection cup and the main unit are assembled and combined to form a regularly shaped integrated structure. An air pump, which cooperates with the vacuum chamber to perform suction, is disposed in the main unit. The present application effectively solves the technical problems in existing breast pumps where the main unit and the milk collection cup are separate, making them inconvenient to use, and where milk may be drawn into the main unit.

The utility model relates to a self-turning body-position-adjustable anti-bedsore massage air cushion, belongs to the technical field of medical instruments, and solves the problem that the posture of an existing inflatable air cushion cannot be adjusted according to the requirements of a patient. The self-turning-over body-position-adjustable anti-bedsore massage air cushion is divided into three layers, the bottommost part is the anti-bedsore air cushion layer, the middle part is the self-turning-over auxiliary air cushion layer, the uppermost part is the massage cushion, and the massage cushion can provide acupoint stimulation. The air inflation pump, the vacuum pump, the controller and the plurality of sets of electromagnetic valves are arranged, so that different air bag modules can be quickly switched to inflate or vacuumize, and the overall posture of the mattress can be adjusted. According to the utility model, the functions of assisting a patient in turning over and adjusting sitting and lying postures are realized.

The application discloses a vacuum leakage structure, a vacuum pump assembly and a breast pump. The vacuum leakage structure comprises a working cavity with a leakage port, a sealing baffle shielding the leakage port, and a leakage transmission assembly driving the sealing baffle away from the leakage port. The power of the leakage transmission assembly is provided by the pressure difference between the inside and outside of the working cavity or by the pump shaft of the vacuum pump. The breast pump comprises a milk collection hood, a diaphragm, and a vacuum pump assembly. The vacuum pump is used to form a sealed chamber on the diaphragm and deform the diaphragm by vacuumizing the sealed chamber. The leakage port is communicated with the sealed chamber where the diaphragm is located through the working cavity. The sealed chamber gradually restores the shape when the leakage port is opened. The application can effectively reduce the heat generation of the breast pump during operation, improve the user's use feeling, and the design principle of the leakage transmission assembly is based on mechanical structure transmission. The structure part replaces the electromagnetic valve in the prior art, reduces the number of electric control elements of the breast pump, and effectively reduces the production cost.

The invention belongs to the technical field of effusion extraction, and particularly relates to an effusion extraction device for tumor nursing, which comprises a storage tank, the top end of the storage tank is in threaded connection with a sealing cover, an inner cavity is arranged between the inner wall of the storage tank and the inner top wall of the sealing cover, and the top wall of the sealing cover is fixedly communicated with a communicating pipe, a detection pipe and an electromagnetic air inlet valve. The inner cavity is communicated with an external air source through an electromagnetic air inlet valve, the inner cavity is communicated with the atmosphere through a communicating pipe, the top end of the communicating pipe is fixedly communicated with an extraction pipe, and the other end of the extraction pipe is connected with a liquid extraction needle in a clamped mode; the accumulated liquid is extracted in a vacuum extraction mode, thick accumulated liquid and impurities are scattered when the accumulated liquid is extracted, the extraction pipe is effectively prevented from being blocked, the continuity of accumulated liquid extraction is guaranteed, external air is introduced to balance air pressure and scatter the impurities when the extraction pipe is blocked, and when the accumulated liquid is completely extracted, the external air is introduced to balance air pressure and stop extraction; and unnecessary damage to tissues is avoided.

The utility model relates to the field of mother and baby products, in particular to a sucking type horn cover assembly and a breast pump, the sucking type horn cover assembly comprises a horn cover and a sealing support used for assembling the horn cover, and the horn cover comprises an attaching portion used for attaching a breast and a deformation portion connected with the attaching portion. An air pressure cavity is defined by the outer wall of the horn cover and the sealing support and located in the position close to the opening direction of the horn cover, and when the air pressure cavity is connected with an external vacuumizing device to form a negative pressure space, the deformation part generates elastic deformation. The air pressure cavity is defined by the outer wall of the horn cover and the sealing support, the air pressure cavity is located at the position close to the opening direction of the horn cover, when the vacuumizing device acts on the air pressure cavity, the air pressure cavity forms a negative pressure space, at the moment, the deformation part can elastically deform, and the horn cover can be directly attached to breast tissue; better deformation and massage effects are achieved, discomfort generated during breast pumping can be reduced, and the breast pumping efficiency can be improved.

The present application relates to the field of urinary catheterization device, in particular to a fall-preventing urinary catheterization device for pediatric urology. The device comprises a connector, a connecting head fixedly connected to the connector, a vacuum pump detachably and sealingly connected to one end of the connector, a blocking valve arranged on the connector between the vacuum pump and the connecting head, and a catheter with one end detachably and sealingly connected to the other end of the connector and the other end fixedly connected to a housing. A float is slidingly arranged on the end of the housing away from the catheter, and a plurality of urine discharge holes are evenly arranged on the circumference of the end of the housing away from the catheter. The float can seal and block the urine discharge holes when in contact with the housing. The vacuum pump can create a vacuum in the catheter before the catheter is inserted, so that the catheter can be reduced in diameter, which facilitates the insertion of the catheter and reduces the pain of the patient during the insertion of the catheter, and prevents the catheter from causing damage to the urethral mucosa.

The application discloses a device for simply measuring vacuum degree of a PET bottle, and relates to the field of vacuum degree measuring devices.The device comprises a PET bottle, a bottle opening is arranged on the PET bottle, an outer thread is arranged on the outer surface of the bottle opening, a bottle cap is screwed on the outer thread, and a vacuum measuring mechanism is arranged on the bottle cap.The bottle cap with the hot melt glue fixed is screwed on the bottle opening of the bottle to be measured, the needle cylinder with the needle cylinder piston returned to zero is inserted into the conical needle head protection sleeve, the conical needle head protection sleeve is sealed, the pull ring is pulled, the needle cylinder piston shaft can be pulled out until the bottle is deformed, the scale of the rising of the needle cylinder piston is recorded, and the scale is read out.The simple vacuum pumping device is designed, the market food-grade needle tube is adopted, the standard bottle cap is matched, the vacuum test can be realized under the sealing and reinforcement of the hot melt glue, the device is characterized by simple operation, accurate measurement and low price.

The invention relates to a heel blood collection pen which sequentially enables vacuuming, puncturing, wiping the first blood, taking the blood into the tube and then impregnating to the Guthrie paper. Thanks to the heel blood collection pen subject to the invention, the squeezing process performed for tissue perfusion in the heel blood collection procedure is terminated, thus completely eliminating the pain that will occur in the newborn with this procedure. With the use of a mechanical lancet at the puncture stage, there is no need to repeat the procedure throughout the entire intervention and the procedure time is minimized. In addition, since the invention is developed in pen format, it is practical and can be easily applied by the nurse. Furthermore, thanks to the increase in the volume of the blood tube in the invention, the nurse does not need to perform repeated procedures during the blood collection and impregnation to the Guthrie paper, thus eliminating the waste of time.

The breast feeding assistor comprises a nipple correction cover and a negative pressure pump, the nipple correction cover comprises a hard outer cover and a flexible inner cover, the hard outer cover and the flexible inner cover are both in a horn shape, the flexible inner cover is coaxially arranged in the hard outer cover, a first opening is formed in the large end of the flexible inner cover, and a second opening is formed in the large end of the flexible inner cover. A second opening is formed in the small end of the flexible inner cover; the first opening is suitable for covering the breast and being attached and sealed to the breast, and the second opening is suitable for allowing the nipple to be exposed and being attached and sealed to the peripheral area of the nipple; the hard outer cover is provided with a negative pressure interface which is the same as the inner space of the flexible inner cover, and the negative pressure interface is connected with a negative pressure pump, so that the flexible inner cover is vacuumized through the negative pressure pump to generate a negative pressure effect, and the flexible inner cover is forced to extrude the milk powder so as to expose the nipples from the second opening. The breast feeding assist device can effectively help a puerpera with nipple defects to overcome breast feeding obstacles.

The invention discloses a corrugated pipe SIP (Session Initiation Protocol) device in a freeze dryer case and a sterilization method. The corrugated pipe SIP device comprises a steam sterilization assembly and a vacuumizing assembly, the vacuumizing assembly is communicated with the interior of the equipment and is used for vacuumizing the equipment; and the steam sterilization assembly is communicated with the equipment and is used for performing high-temperature sterilization on a plate layer lifting oil cylinder corrugated pipe, a discharging push rod corrugated pipe and a main valve corrugated pipe in the equipment. The vacuumizing assembly comprises a vacuum pump, and the output end of the vacuum pump is communicated with the equipment through a vacuum pipeline; and a vacuum pump head valve is arranged on the vacuum pipeline. The device further comprises a hose guide port valve and a hose opening valve. The hose guide port valve is arranged on the vacuum pipeline, and the other end of the hose guide port valve is connected with the hose opening valve. The corrugated pipe SIP device in the freeze dryer case and the sterilization method aim to overcome existing defects, and the temperature of hydraulic oil of an SIP sterilization hydraulic system is not affected.

An anti-hemorrhaging device includes an elongate body, a flexible looped segment, a shield, and an inflatable seal. The elongate body is configured to attach to a vacuum source. The flexible looped segment is attached to the elongate body includes a plurality of holes on an inner circumference thereof. The flexible looped segment is configured to be placed in a uterus. Activation of the vacuum source is configured to pull vacuum through the plurality of holes so as to collapse the uterus upon insertion of the elongate body into the uterus. The shield is folded around an exterior circumference of the looped portion and has edges that extend radially inwards relative to the flexible looped distal section. The shield is configured to prevent tissue from occluding the plurality of holes when vacuum is applied. The inflatable seal is attached to the elongate body and is configured to seal the uterus.

The utility model provides a vacuum system of a pressure steam sterilizer, which relates to the technical field of pressure steam sterilization, and comprises a sterilizer main body, a vacuum pump, a vacuum pump, a vacuum pump, a vacuum pump and a vacuum pump, and the sterilizer main body is internally provided with a sterilization chamber which is of a cylindrical cavity structure; a pipeline system is arranged behind the sterilization chamber; a first condenser is arranged behind the sterilization chamber and is connected with the sterilization chamber through a pipeline system; a jet flow valve is arranged at the rear part of the sterilization chamber, the jet flow valve is connected with the water storage tank through a first circulating pipe, a second circulating pipe is connected with a second condenser, and a circulating pump provides power to circulate and vacuumize water vapor, so that the steam in the sterilization chamber can be removed, and the vacuumizing efficiency is effectively improved; the service life of the equipment is ensured, and the problems that the vacuumizing efficiency is reduced and the service life of the equipment is influenced due to water in the sterilization chamber in the vacuumizing process when the vacuum system of the existing pressure steam sterilizer is used are solved.