9 results about "Single injection" patented technology

This invention relates to an absorbable, slow-release regulator for off-season antler growth in sika deer and red deer, and its preparation method, belonging to the field of off-season antler growth regulators. The regulator comprises 330 mg–360 mg medroxyprogesterone acetate (MPA), 50 mg–55 mg dextran sulfate (DS), and 200 mg–220 mg sodium hyaluronate (HA), diluted with water for injection to a final volume of 1.0 mL. The molecular weight of medroxyprogesterone acetate (MPA) is 386.52 kDa; the molecular weight of dextran sulfate (DS) is 36–50 kDa; and the molecular weight of sodium hyaluronate (HA) is 20–400 kDa. This invention utilizes exogenous progesterone to induce off-season antler growth in male deer through hormonal regulation. The use of absorbable materials is environmentally friendly and harmless to the body, allowing for natural absorption and normal excretion through the body's metabolic processes. A single injection is sufficient to provide efficacy for over 35 days. Using progesterone to regulate off-season antler growth is low-cost and has a high success rate.

The utility model discloses a kind of pressurized core mould, it is related to pressurized core mould technical field, including top cover, the top cover top is fixedly connected with injection port, the bottom of top cover is provided with forming assembly, the bottom of forming assembly is provided with bottom mould.The pressurized core mould is to solve the problem that only single production workpiece can be produced in prior art mould, production efficiency is low and it is difficult to meet the batch manufacturing demand, the cavity structure of top mould and bottom mould cooperation is set in the present application, and cross feed groove is designed in top mould, after injection liquid is injected into injection port, it can be evenly distributed to multiple cavities from four directions along cross feed groove, the structure realizes the synchronous forming of multiple workpieces by single injection process, and the accurate positioning of fixed sleeve and limiting sleeve and spring buffer mechanism are matched, which not only guarantees the uniformity of multi-cavity injection molding and the stability of finished product quality, but also significantly improves production efficiency, effectively reduces single manufacturing cost.

The utility model discloses a hot runner, mould, wherein hot runner contains hot runner body and the glue inlet, and the glue inlet is located on hot runner body, and is linked with the injection molding machine nozzle of outside, still contains: bottle embryo injection nozzle, bottle embryo injection nozzle is linked with the bottom of the bottle embryo cavity of outside's glue inlet intercommunication, and bottle embryo injection nozzle conveys injection molding material to bottle embryo cavity, handle injection nozzle, handle injection nozzle is linked with the bottom of the handle cavity of outside's glue inlet intercommunication, and handle injection nozzle conveys injection molding material to handle cavity. The utility model discloses through adding a handle nozzle, realizes handle single injection molding, is not affected by bottle embryo injection molding, can shorten injection molding time, guarantees the heat of bottle embryo to blow -molding qualified handle bottle.

Methods and formulations for a simplified, single-injection method to induce and control the synchronous growth (superstimulation), and ovulation (superovulation) of multiple ovarian follicles in bovine, ovine, caprine, camelid and other female animals enabling the subsequent collection of (a) multiple oocytes when conducting in-vitro fertilization, or (b) multiple embryos when conducting multiple ovulation embryo transfer.

The utility model provides a kind of batch injection dispensing device, its features include injection storage module and injection dispensing manipulator.Injection storage module is used to store various injections in batches, and injection dispensing manipulator is used to take out injections in injection storage module in batches.Injection storage module is provided with several injection grooves and slide bars, and a single injection is issued by pushing slide bar.Injection dispensing manipulator includes injection storage hopper and push rod actuator, the injection storage hopper is used to store the injection taken out in batches, and the push rod actuator is used to push slide bar.The utility model discloses batch injection dispensing device design innovation, simple structure, and the batch taking out and batch storage of injection are realized by injection dispensing manipulator, so as to accurately issue injection, greatly improve the efficiency and accuracy of injection dispensing.

The present application belongs to the field of environmental analysis chemistry, and discloses a method for evaluating the performance of a gas chromatograph mass spectrometer. The evaluation method integrates multi-index instrument performance evaluation standard substances, and realizes accurate evaluation of the performance of the gas chromatograph mass spectrometer based on the standard curve of the target substance registered in the database. The evaluation method established by the present application can comprehensively evaluate the influence of instrument components such as the chromatographic column, the sample inlet and the mass spectrometer on the qualitative and quantitative analysis of target compounds through single injection, thereby saving the cost required for purchasing standard substances, manpower and time required for instrument testing, and having the advantages of high efficiency, convenient operation and low cost. The present application provides technical support for monitoring and controlling new pollutants, and has a wide application prospect.

This invention relates to a sustained-release injectable composition containing exenatide and its preparation method. Using this sustained-release injectable composition, exenatide can be continuously released in vivo for 1 to 2 months with a single injection, thereby reducing the frequency of administration and improving convenience. Furthermore, by encapsulating exenatide in uniformly sized microparticles, a prolonged sustained release of exenatide is achieved, resulting in improved bioavailability compared to existing exenatide injectable formulations.

This invention proposes a limiting device for setting the maximum single-dose dosage of an injection pen, comprising a housing, with a proximal end at the front end and a distal end at the rear end. A dose display element is spirally connected to the housing. During injection, the dose display element moves towards the distal end along the thread of the housing. During dose adjustment, the dose display element moves towards the proximal end along the thread of the housing. A limiting protrusion is provided on the inner wall of the housing, and a notch is provided on the upper surface of the dose display element. The notch is inclined. When adjusted to the maximum dose, the side of the notch abuts against the side of the limiting protrusion, limiting the continued rotation of the dose display element, thereby limiting the maximum single-dose dosage and preventing the set dose from exceeding the maximum single-dose dosage, resulting in inaccurate single-injection administration.

Disclosed are a die casting machine with single and double injection, and a method for designing a front plate thereof. The die casting machine with single and double injection includes a front plate, an injection lower frame, and an injection module. The front plate and the injection lower frame are fixed and spaced apart. If a quantity of the injection module is one, the injection module is mounted in the middle of the injection lower frame and is matched with a connector in the middle of the front plate. If a quantity of the injection modules is two, the injection modules are symmetrically mounted at two sides of the injection lower frame and are matched with connectors at two sides of the front plate respectively. The method for designing a front plate is used to design the front plate of the die casting machine with single and double injection. The present disclosure has the following beneficial effects: compared with two traditional die casting modes with independent single injection and with independent double injection, the present disclosure can achieve a single injection mode and a double injection mode only by changing the quantity of injection modules, and can be adjusted according to actual production needs. Thus, the application scope of the present disclosure can be effectively improved, and production cost can be effectively reduced.