Venous puncture system based on pressure field detection
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A technique of venipuncture and pressure field, which is applied to puncture needles, diagnostic recording/measurement, and instruments introduced into the body.
Active Publication Date: 2019-03-08
ZHONGSHAN HOSPITAL FUDAN UNIV
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[0003] At present, medical staff generally use two methods when performing venipuncture: one is the visual method, which is to use naked vision to find and locate blood vessels. This method is only suitable for superficial and prominent veins. For patients, the size, bending and bifurcation of blood vessels in the subcutaneous tissue cannot guarantee accurate positioning; there is also a touch method, which uses the feeling of touch to find and locate blood vessels. This method requires many years of clinical experience. By touching the skin to distinguish blood vessels and the touch of surrounding tissue, so as to determine the location and depth of blood vessels
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Embodiment 2
[0051] Example 2: Puncture of superficial forearm vein
[0052] After collecting the data of the patient's age, gender, height, weight, bust circumference, waist circumference, and subcutaneous fat thickness, input it into the main control device.
[0053] Except for the contraindications of venipuncture, the patient was prompted by electronic voice to maintain a supine position on the treatment bed, exposing the skin of the forearm on the puncture side.
[0054] Multiple infrared cameras are set at fixed positions in the treatment room for high-frequency synchronous imaging. The fixed position of the treatment bed is set with reference to the infrared light source, and the collected image data is input into the main control device. The main control device uses the human body contour recognition technology to calculate the patient's body position information, and processes multiple groups of two-dimensional images to calculate the three-dimensional contour information of the h...
Embodiment 3
[0060] Example 3: Dorsal Vein Puncture of Foot
[0061] After collecting the data of the patient's age, gender, height, weight, bust circumference, waist circumference, and subcutaneous fat thickness, input it into the main control device.
[0062] Except for the contraindications of venipuncture, the patient was prompted by electronic voice to maintain a supine position on the treatment bed, exposing the skin of the calf and dorsum of the puncture side.
[0063] Multiple infrared cameras are set at fixed positions in the treatment room for high-frequency synchronous imaging. The fixed position of the treatment bed is set with reference to the infrared light source, and the collected image data is input into the main control device. The main control device uses the human body contour recognition technology to calculate the patient's body position information, and processes multiple groups of two-dimensional images to calculate the three-dimensional contour information of the h...
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Abstract
The invention relates to a venous puncture system based on pressure field detection, characterized by comprising: a plurality of infrared cameras fixed in a treatment chamber; a detection device having a variable shape detection face on which three-dimensional pressure sensors perpendicular to the detection face are arrayed on the detection face; a compression device to apply pressure to the localskin from the certain position of the proximal part of the vein under puncture; a master control device; a puncture device, wherein the master control device controls the puncture device according toa puncture spot, puncture angle and a puncture path to operate a puncture needle to puncture the skin, subcutaneous tissue and a vein in sequence. The venous puncture system herein provides precise venous positioning and automated artery puncturing, has no need for medical personnel's operation and saves medical resources; venous compliance can be calculated during detecting to eliminate venous disorders; the specific positions of the venin and puncture needle can be calculated during puncturing, misopeartion is avoided, and postoperative complications are decreased.
Description
technical field [0001] The invention relates to the technical field of medical devices, in particular to a venipuncture system based on pressure field detection. Background technique [0002] Patients with difficulty in venipuncture include: infants, children, obese patients, edema patients and other patients who are not easy to see the veins themselves, or patients who have undergone repeated chemotherapy, patients with poor blood vessel elasticity, first aid, shock, sharp decrease in blood volume, and blood vessel collapse patient etc. When venipuncture, avoid joints, induration on the skin surface, scars, vein valves, vein branches, and veins with diseased vein walls. Failure of venipuncture can lead to venipuncture complications such as: phlebitis, hemorrhage and hematoma, effusion, tissue necrosis, or catheter blockage. Common reasons for venipuncture failure: unskilled puncture technique, which damages the needle tip; excessive puncture punctures the posterior wall o...
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