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36 results about "Pain responses" patented technology

Stable progesterone water-soluble injection and preparation method thereof

The invention relates to a progesterone water-soluble injection and a preparation method thereof. The progesterone water-soluble injection comprises progesterone, a cyclodextrin derivative solubilizer, an inclusion accelerator and injection water. Sodium citrate and citric acid are taken as the inclusion accelerator, and a complex is formed with cyclodextrin by using the polyhydric structural features of sodium citrate and citric acid, so that the inclusion constant of the complex is improved, the problem that the using amount is excessive when the progesterone water-soluble injection is prepared by using a cyclodextrin derivative as the solubilizer is solved effectively, the using amount is reduced to less than 10%, and the renal toxicity, hemolytic activity and carcinogenicity risk of the cyclodextrin derivative are reduced obviously through such using amount, so that the safety is improved. The pain reaction is relatively lower when the progesterone water-soluble injection is used for injection, the injection is low in irritation, unlikely to be allergic and high in adaptability for long-time use of a patient, and relative to clinically frequently-used progesterone oil-soluble injection in the present stage, the injection has the advantages of dosage form.
Owner:南京泽恒医药技术开发有限公司

Method and device for evoking temporal pain summation

A device for evoking a temporal summation of pain in a subject. The device comprises a stimulation element (SE) arranged generating a physical stimulation on a skin surface area of at least 20 cm2 according to a control signal (CS), where the stimulation (PS) evokes pain in the subject. A processor (PR) generates the control signal (CS) to the stimulation element (SE) so as to provide a repetitive stimulation pattern comprising at least repetitions of: a)applying stimulation for a period (SP) of 0.5-120 seconds, b)stopping stimulation for a period (TP) of 0.5-20 seconds. Preferred periods are 1-3 seconds for both stimulation and intermediate stopping periods. The stimulation element may include an inflatable tourniquet arranged for providing a compressional stimulation of an arm or a leg. However, other types of stimulation elements may be used such as electric, heating, mechanical stimulation or the like may be used. The device is suited for providing a measure of temporal summation in a subject with different intensities, and this measure can be used for determining if the subject suffers from central nervous sensitization which is an important diagnosis with respect to effective analgesic treatment. In some embodiments, the device is arranged to collect pain responses during the stimulation and to calculate a measure of temporal summation of the subject accordingly, e.g. in the form of a rate of pain change (VAS) versus time (T).
Owner:NOCITECH APS

Progesterone suspending injection and preparation method thereof

The invention relates to progesterone suspending injection and a preparation method thereof. The progesterone suspending injection comprises progesterone, SBA-15, povidone K15 and injection water. According to the invention, under the effect of physical mechanical force, the well-organized crystal structure of the progesterone is damaged but is not suffered from chemical degradation and SBA-15 and progesterone molecule are interacted through hydrogen bond, so that the amorphous progesterone molecule is loaded onto a nanometer structure duct, can be attached to the SBA-15 loading a large quantity of drug molecules and can be maintained under amorphous state; the amorphous progesterone molecule reacts with the povidone K15 through the hydrogen bond, so that the amorphous state is more stable and a certain suspending assisting function is achieved; the technical problems that the progesterone is difficult to dissolve in water, the oil-soluble progesterone injection brings a strong injection pain response and a conventional solubilizing method is not suitable for preparing the progesterone into the injection can be solved; and the progesterone is developed into the injection with stable nature and without pain response in the injection process.
Owner:南京斯泰尔医药科技有限公司

Devices and methods for pain management

The invention features devices and methods for the systemic delivery of fentanyl or a fentanyl congener (e.g., sufentanil) to treat pain. In the present invention, a drug formulation comprising fentanyl or a fentanyl congener is stored within a drug delivery device (e.g., contained in a reservoir or impregnated within a matrix within the controlled drug delivery device). The drug formulation comprises an amount of drug sufficient for treatment and is stable at body temperatures (i.e., no unacceptable degradation) for the entire pre-selected treatment period. The drug delivery devices store the drug formulation safely (e.g., without dose dumping), provide sufficient protection from bodily processes to prevent unacceptable degradation of the formulation, and release the drug formulation in a controlled fashion at a therapeutically effective rate to treat pain. In use, the drug delivery device is implanted in the subject's body at an implantation site, and the drug formulation is released from the drug delivery device to a delivery site. The delivery site may be the same as, near, or distant from the implantation site. Once released at the delivery site, the drug formulation enters the systemic circulation and is transported to the site of action in the body to modulate the pain response (e.g., the brain or other pain sensory location).
Owner:JOHNSON RANDOLPH MELLUS +1

Devices and methods for pain management

The invention features devices and methods for the systemic delivery of fentanyl or a fentanyl congener (e.g., sufentanil) to treat pain. In the present invention, a drug formulation comprising fentanyl or a fentanyl congener is stored within a drug delivery device (e.g., contained in a reservoir or impregnated within a matrix within the controlled drug delivery device). The drug formulation comprises an amount of drug sufficient for treatment and is stable at body temperatures (i.e., no unacceptable degradation) for the entire pre-selected treatment period. The drug delivery devices store the drug formulation safely (e.g., without dose dumping), provide sufficient protection from bodily processes to prevent unacceptable degradation of the formulation, and release the drug formulation in a controlled fashion at a therapeutically effective rate to treat pain. In use, the drug delivery device is implanted in the subject's body at an implantation site, and the drug formulation is released from the drug delivery device to a delivery site. The delivery site may be the same as, near, or distant from the implantation site. Once released at the delivery site, the drug formulation enters the systemic circulation and is transported to the site of action in the body to modulate the pain response (e.g., the brain or other pain sensory location).
Owner:JOHNSON RANDOLPH MELLUS +1
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