8 results about "Blood or Tissue" patented technology

Systems and methods for delivering to and / or receiving fluids or other materials, such as blood or interstitial fluid, from subjects, e.g., from the skin. Beading disruptors and / or capillaries may be used for facilitating the transport of fluids from a subject into a device. Beading disruptors may disrupt the “pooling” of bodily fluids such as blood on the surface of the skin and help influence flow in a desired way. A capillary may conduct flow of fluid in the device, e.g., to an inlet of a channel or other flow path that leads to a storage chamber. A vacuum (reduced pressure relative to ambient) may be used to receive fluid into the device, e.g., by using relatively low pressure to draw fluid into the inlet of a channel leading to a storage chamber. The vacuum source may be part of the device and have a volume that is larger than a recess of the fluid transporter that receives fluid from a surface.

The invention discloses multifunctional hemostatic cryogel with orientation channels and a preparation method and application of the multifunctional hemostatic cryogel. Relates to the field of medical materials. The hemostasis cryogel has a columnar-like structure, and an axial orientation channel and a radial orientation channel are arranged in the hemostasis cryogel; the axial channels are arranged in a tubular mode, and the radial channels are of a honeycomb-like porous structure and communicate with the side face and the interior of the columnar-like structure. The hemostatic cryogel comprises the following components: modified polyethylene glycol, and protein or a derivative thereof, the modified polyethylene glycol is modified with an R group, and the R group comprises at least one of carboxyl, amino, aldehyde group, sulfydryl, alkylene and succinimide active ester. When the hemostatic cryogel is used, the hemostatic cryogel can be directly injected to a wound surface, rapidly absorbs liquid and expands after being in contact with blood or tissue fluid, fills a wound cavity and forms stable plugging, so that rapid hemostasis is realized.

The invention belongs to the technical field of medical instruments, and particularly relates to an amniotic fluid sampler for gynaecology and obstetrics, which comprises a puncture frame, an adsorber, a puncture outfit and a controller. The B-ultrasonic probe and the puncture needle are flexibly adjusted and fixed through the installer, and accurate positioning is ensured; the adsorber stably adsorbs the device to the abdomen of a patient through a negative pressure channel and a rubber air cushion, and displacement during operation is prevented; the puncture outfit adopts a specially designed puncture needle and comprises an outer sleeve and a rotatable sampling needle core, so that maternal blood or tissues are prevented from being carried, and the risk of sample pollution is reduced; the controller controls the driving motor through a needle feeding button and a needle withdrawing button, the puncturing depth and speed are automatically adjusted by combining a worm gear, a worm and a lead screw mechanism, and manual operation errors are reduced. According to the whole device, automatic control, stable fixing and clean sampling of amniotic fluid sampling are achieved through the structure, and the detection accuracy and operation convenience are improved.

The application relates to the technical field of protection devices, and discloses a sputtering-preventing protection device for bone sawing and grinding, which comprises a protection device main body, a tightening belt and a fixing assembly. The protection device is provided with a first transparent plastic film and a second transparent plastic film. In the operation process of sawing a bone or grinding a hip socket, the splashed bone fragments, blood and tissues will first adhere to the surface of the first transparent plastic film. When the surgeon cannot see the internal surgical field through the film, the first transparent plastic film is pulled to drive the bent end of the second transparent plastic film to be unfolded, the adhesive material on the back surface is peeled off, and the first transparent plastic film is separated from the second transparent plastic film. At this time, the first transparent plastic film adhered with the bone fragments, blood or tissues is separated. The method can shield the splashed objects and effectively avoid the obstruction of the vision caused by the adhesion.

The utility model relates to an ablation tube for pathological vein, belong to medical instrument technical field, solved the problem that medical staff in the ablation technique in the prior art cannot perceive whether the ablation catheter work section reaches the ablation target effectively and whether the blood vessel wall is punctured or not. The utility model discloses a cylinder section, the leading section, impedance detection module and control unit, and the leading section is arranged on the cylinder section, and the leading section is used for guiding the cylinder section to pass through the blood vessel, and the control unit is connected with the cylinder section;Impedance detection module is used for measuring the resistance of patient's blood or tissue, and sends to the control unit. If the leading section of the utility model is stuck into the blood vessel wall or the work section has reached the ablation target, the impedance detection module measures the resistance value of the blood vessel wall and sends to the control unit, and the control unit can judge whether the blood vessel is broken according to the change of resistance value, and prompts medical staff, and the leading section is still stuck into the blood vessel wall or the work section has reached the ablation target in the blood vessel.

The present invention relates to a sensor head (10) for measuring the concentration of an analyte in the blood or tissue of an animal or a human, which analyte passively diffused through the skin (2) of said animal or human (P), particularly a premature infant, comprising: a first membrane (30) having a first permeability with respect to the analyte, wherein the first membrane (30) comprises a first contact surface (30a) configured to contact the skin (2) to receive said analyte, a second membrane (31) having a second permeability with respect to the analyte, wherein the second membrane (31) comprises a second contact surface (31a) configured to contact said skin (2) to receive said analyte, and wherein the first permeability differs from the second permeability, wherein the first contact surface (30a) is arranged besides the second contact surface (31a), wherein the first and the second contact surface (30a, 31a) are interleaved.

The invention provides a CHD3 gene detection method and application thereof, and belongs to the technical field of gene detection.The method comprises the following steps that a blood or ovarian tissue sample of a patient is collected, DNA extraction and PCR amplification are conducted on the blood or tissue sample, a CHD3 specific primer is designed, a target fragment is amplified, the expression level of the CHD3 gene is detected, and data analysis is conducted. And comparing and analyzing the detection result with a normal control group. By detecting the expression level of the CHD3 gene in the blood or tissue sample of a patient, the early occurrence of the ovarian cancer can be effectively judged. The method has the characteristics of high sensitivity, strong specificity, simplicity and convenience in operation and the like, can obviously improve the early diagnosis rate of ovarian cancer, and gains precious time for treatment of patients. The invention provides an innovative solution for early screening and diagnosis of ovarian cancer, and has important clinical application value.

The invention relates to a fluorescent RNA (Ribonucleic Acid) functionalized hydrogel kit, a preparation method and a method for detecting colorectal cancer miRNA-126, solves the technical problem of how to detect miRNA-126 in blood or tissue samples and is suitable for portable detection, and fluorescent RNA functionalized hydrogel is prepared from methacrylic acid hyaluronic acid, an acryloyl-modified fluorescent RNA aptamer and N, N-dimethylformamide. The fluorescent RNA aptamer is obtained by crosslinking the fluorescent RNA aptamer and N, N '-methylene bisacrylamide, and the covalent crosslinking between the fluorescent RNA aptamer and the hydrogel can prevent the RNA aptamer from being released into the external environment, so that the stability and the anti-interference capability of the hydrogel kit are improved.