35results about How to "Avoid serious complications" patented technology

An endoluminal support structure includes strut members interconnected by swivel joints to form a series of linked scissor mechanisms. The structure can be remotely actuated to compress or expand its shape by adjusting the scissor joints within a range of motion. In particular, the support structure can be repositioned within the body lumen or retrieved from the lumen. The support structure can be employed to introduce and support a prosthetic valve within a body lumen.

A civil engineering machine has a machine control unit configured to determine data which defines the position and / or orientation of a reference point on the civil engineering machine in relation to a reference system independent of the position and orientation of the civil engineering machine. A geometrical shape to be produced on the ground is preset in either a machine control unit or a field rover control unit. The field rover is used to determine a position of at least one identifiable point of the preset geometrical shape in the independent reference system. Curve data defining a desired curve in the independent reference system, corresponding to the preset shape, is determined at least partially on the basis of the position of the at least one identifiable point of the preset geometrical shape in the independent reference system.

The invention belongs to the field of medical apparatus and instruments, and in particular relates to a skin-outer carotid sinus massage blood-pressure-reducing device. The skin-outer carotid sinus massage blood-pressure-reducing device comprises a carotid sinus massage part, a pressure monitoring part, a control part, a display part, an electrocardiogram monitoring part and a fixing part, wherein a microprocessor of the control part analyzes a pressure signal from the pressure monitoring part, so that the massage mode of the carotid sinus massage part fixed to the local skin-outer part of the carotid sinus is adjusted, and thus the feedback blood pressure reduction is realized. The skin-outer carotid sinus massage blood-pressure-reducing device is used for treating high blood pressure, is a noninvasive blood pressure reducing device, is convenient to use, is safe and effective, and has a great clinical application value.

The invention provides an artificial blood vessel which comprises an artificial blood vessel main body, a shunt vessel, two air bags and two air filled vessels, wherein the side wall of the artificial blood vessel main body is provided with two through holes, each through hole is provided with an outward extending skirt edge, and each skirt edge is provided with a tightening line; both ends of the shunt vessel respectively pass through the artificial blood vessel main body from the two through holes and the skirt edges and extends our of both ends of the artificial blood vessel main body, and each extension section of both ends of the shunt vessel passes through one air bag and is hermetically connected with the air bag; and both air filled vessels are arranged in the vessel wall of the shunt vessel, one end of each air filled vessel extends out from the middle section of the shunt vessel, and the other end is communicated with one air bag. Surgeries can be performed without blocking the blood flow in the human blood vessel by using the shunt vessel and the two air bags, the anastomosis between the artificial blood vessel and the human blood vessel is completed, organ ischemia is avoided, the success ratio of surgeries and the convenience of surgery operations are increased, and the pain of patients in surgeries is relieved.

The invention innovatively adopts a flexible airbag anal and rectal dilation catheter. The risk of damage to the intestinal canal during the using process of the flexible airbag anal and rectal dilation catheter is reduced, and serious complications are avoided. Because the current hard anal dilator strongly passes through the anastomotic stenosis position, causing pain and extreme discomfort; a patient is extremely uncooperative, crying and uneasy, and affecting the dilation effect; a flexible airbag anal and rectal dilator is smooth and comfortable and greatly reduces the pain and the discomfort of the patient, the patient is highly cooperative, and the anal dilation effect is good. If the hard anal dilator is adopted, the strong dilation has the risk of anastomotic rupture when the wound is not healed in the early postoperative period, the dilation can be performed generally 2-3 weeks after the surgery, the anastomotic local scar is formed at the moment, and the dilation is difficult. The flexible airbag anal and rectal dilator is soft, the dilation strength can be controlled and adjusted, the dilation can be performed in the early postoperative period to avoid scar formation, and the dilation effect is better.

The invention discloses a modified lauromacrogol foam hardening agent as well as a preparation method and application thereof. The preparation method comprises the following steps: firstly, mixing a lauromacrogol bulk drug with gelatin or agar powder with surface activity and foam stabilizing effect through an ultra-stable homogeneous formula technology to prepare a modified lauromacrogol mother solution, and obviously improving the foam stability and defoaming time of the foam hardening agent prepared from the modified lauromacrogol mother solution; subjecting the modified lauromacrogol mother liquor and various active ingredients including a preparation with a photosensitive (thermal) characteristic, a nuclear magnetic resonance imaging preparation, a chemotherapeutic drug, nuclide and the like to ultrasonic mixing to obtain a multifunctional improved lauromacrogol mixed preparation, and then preparing the multifunctional and visual lauromacrogol foam hardening agent under the action of a three-way valve device. The modified lauromacrogol foam hardener for varicose veins and tumors is locally administered in a minimally invasive mode, and then a good treatment effect on the varicose veins and the tumors is achieved in combination with a sclerotherapy and other therapies.

An injection partition type coaxial pipe puncture needle is provided, characterized in that the puncture needle comprises a puncture needle and a syringe outer housing (2), wherein the syringe outer housing (2) is a square barrel body. An upper cover plate (5) and a lower cover plate (8) are respectively connected with the upper and lower ends of the syringe outer housing (2) in a sealed manner. Acoaxial inner cannula (3) is arranged between the upper cover plate (5) and the lower cover plate (8). A plurality of through holes (30) are arranged on the through holes (30). The invention providesa partition type coaxial pipe puncture needle which is separated from the outside world by injecting liquid. The needle utilizes the principle of the horizontal plane, adds the angle measuring mark,can skillfully display the needle feeding angle of each direction, accurately provides the direction for the puncture needle feeding, and will greatly improve the puncture accuracy.

The invention relates to new medical application of bear gall powder, namely an application of bear gall powder in preparation of a medicament capable of preventing and treating transhepatic arterial chem otherapy and embolization (TACE) failed back surgery syndrome of primary hepatic carcinoma patients. The invention has the advantages that clinical research indicates that bear gall powder is capable of obviously improving the TACE failed back surgery syndrome of primary hepatic carcinoma patients, reducing the glutamicoxalo acetictransaminase level, protecting the liver function and reducing the inflammatory factor level for the first time, and has the application prospect of preventing and treating transhepatic arterial chem otherapy and embolization (TACE) failed back surgery syndrome of primary hepatic carcinoma patients.

The invention belongs to the technical field of postmenopausal female osteoporosis risk prediction, and discloses a postmenopausal female osteoporosis risk alignment diagram prediction system and a prediction method. A data collection table related to osteoporosis prediction is designed through literature learning, and through questionnaire survey and bone mineral density examination results of postmenopausal female patients a training data set and a verification set are formed; a training data set is subjected to Lasso regression variable screening and Logistic regression to establish a prediction model, a data set is established and verified, model evaluation is carried out, and indexes comprise calibration degree, resolution and clinical practicability; and an osteoporosis risk alignment diagram is fabricated, the alignment diagram is made into an APP or a WeChat applet for a patient to use, and the model is updated regularly. Through bone mineral density examination, the osteoporosis risk of a patient can be primarily screened, early treatment of the patient is facilitated, osteoporosis screening of a high-risk patient is suggested, and medical suggestions are given.

A method for individuating with high sensitivity and specificity ADA metabolites from dried blood spot. The method described herein can be used to extract Adenosine and Deoxyadenosine from a sample under conditions that permit concurrently extracting other metabolites, such as amino acids, free carnitine, or acylcarnitines. For example, harsh extraction conditions (such as extreme acidity and high temperature) can be avoided. The method can be used, along with other neonatal screenings, on blood samples and preferably on dried blood spots (Guthrie cards) and more preferably on Guthrie cards obtained in the II-IV day of life. The method is reliable and reproducible, easy to perform and gives a definitive response within a short time (1-2 days). One or more kit for use in the method.

An information readout device includes an equalizer and a maximum likelihood detector. The equalizer includes a second-order Volterra filter, and equalizes a readout signal read out from an information recording medium to a predetermined characteristic to output the equalization signal. The maximum likelihood detector outputs a binary signal through maximum likelihood detection based on the equalization signal. By limiting the number of second-order terms of the second-order Volterra filter to three terms or four terms, a nonlinear component can be effectively corrected.

The invention provides an artificial blood vessel which comprises an artificial blood vessel main body, a shunt vessel, two air bags and two air filled vessels, wherein the side wall of the artificial blood vessel main body is provided with two through holes, each through hole is provided with an outward extending skirt edge, and each skirt edge is provided with a tightening line; both ends of the shunt vessel respectively pass through the artificial blood vessel main body from the two through holes and the skirt edges and extends our of both ends of the artificial blood vessel main body, and each extension section of both ends of the shunt vessel passes through one air bag and is hermetically connected with the air bag; and both air filled vessels are arranged in the vessel wall of the shunt vessel, one end of each air filled vessel extends out from the middle section of the shunt vessel, and the other end is communicated with one air bag. Surgeries can be performed without blocking the blood flow in the human blood vessel by using the shunt vessel and the two air bags, the anastomosis between the artificial blood vessel and the human blood vessel is completed, organ ischemia is avoided, the success ratio of surgeries and the convenience of surgery operations are increased, and the pain of patients in surgeries is relieved.

The invention provides a vena cava filter which comprises a columnar net barrel. Shape memory wire threads are woven to form the columnar net barrel, a filter structure which is use for filtering thrombi is arranged in the net barrel and comprises a plurality of rod-shaped filter components, one end of each filter component is connected with the inner wall of the net barrel, and the other end of each filter component is connected with a connector. The filter components are perpendicular to the axis of the net barrel and are pressure springs. The vena cava filter has the advantages that the vena cava filter is of a net barrel structure, nickel-titanium alloy wires are woven to form the net barrel, accordingly, the vena cava filter is excellent in blood vessel adherence, and severe complications due to the fact that the vena cava filter moves and falls off to the hearts and the lungs of human bodies and is broken, vena cava is perforated and the like can be prevented; the vena cava filter can be recycled and can be conveniently implanted into the human bodies and taken out of the human bodies via the connectors; the vena cava filter which is of the net barrel structure can deform, is adaptive to the shapes of the blood vessels of the human bodies, and can be contracted when implanted into the human bodies and taken out of the human bodies, so that the vena cava filter with a small diameter can be arranged in a conveyor device.

The invention relates to the field of medical apparatuses, in particular to an anti-fall and anti-damage wire. The anti-fall and anti-damage wire is characterized by comprising a thin-long-pipe-shapedbody internally provided with an inflating cavity and an airbag arranged at the front part of the body and communicated with the inflating cavity. The head of the anti-shed and anti-damage wire can be clamped inside the organ and is prevented from falling out of the target organ or entering the organ or other surrounding viscera and blood vessels by too large depth, and thus the occurrence of a severe complication is prevented.

The invention discloses a degradable woven occluder. The degradable woven occluder comprises a silk woven mesh, a far end and a near end, wherein the far end and the near end are arranged at both ends of the silk woven mesh; a connecting structure is arranged inside the silk woven mesh, the upper end of the connecting structure is connected with the far end, and the lower end of the connecting structure is connected with the near end or the silk woven mesh around the near end. The degradable woven occluder is completely degradable, thereby being high in long-term effects on patients and avoiding occluder complications induced by other long-term diseases; coupe pipes are hooks together in a separated mode, so that the degradable woven occluder can maintain an I-shaped form and can be good in adhesion to defects and further ensure stability and occlusion properties; an auxiliary wire can achieve protecting effects and can recover the degradable woven occluder when the degradable woven occluder falls off to avoid severe complications.

The invention relates to the technical field of deep venipuncture, in particular to a simple deep vein catheterization set. The simple deep vein catheterization set comprises a catheter body, whereina plurality of catheter side hole joints are regularly arranged on the outer side surface of the rear end of the catheter body; a syringe body is arranged on the outer side of the catheter body; and alaser oxygen saturation testing instrument is arranged on the outside of the syringe body. By arrangement of the syringe body with a long needle head, the needle head of the syringe serves as a guidewire, the needle head and the catheter body are inserted in a vein of a patient together favorably, meanwhile, by the laser oxygen saturation testing instrument which is arranged on the syringe body,blood which enters the syringe body is measured and distinguished to judge whether the catheter enters the artery of the patient or not, meanwhile, a catheter tail end rubber plug is arranged at thetail end of the catheter body, after the needle head is pulled out, the catheter is sealed automatically by the rubber plug, the simple deep vein catheterization set is simple and convenient to operate, the circumstance that the catheter enters the artery mistakenly can be avoided, the problems of breakage and dropping of a guide wire due to a traditional seldinger technology and possible significant complications are avoided effectively.