6 results about "NEEDLE/SYRINGE" patented technology

Methods are provided for aesthetic restoration and reconstruction of bone loss, deficit, defect, or a combination thereof. The methods include administration of one or more suitable bone derived compositions by a minimally invasive procedure such as injection using a needle, syringe, etc., placement in or through a small incision, or a combination thereof. The properties and characteristics of the bone derived composition, including without limitation, flowability, injectability, size, shape, and physical form, are limited only by the requirement that they are capable of administration by a minimally invasive technique. For example, these methods are effective for restoration of facial features, e.g., lost chin definition, jawline definition, bone around nasal lines, and bone around the upper and lower eye area. These methods are also effective for treatment of bone deficiency and loss in other body features such as shoulders and collarbones, pelvis, feet, ankles, hands, and wrists.

The invention is suitable for the technical field of medical instruments, and provides a buckle-type connection anti-needle-falling injector, which comprises a needle cylinder, a buckle-type connection part, a buckle-type connection part, a buckle-type connection part and a buckle-type connection part, the piston is arranged in the needle cylinder, and a pull rod is fixedly mounted on the piston; the connector is sleeved with the pintle, and a pintle head is arranged on the pintle; the mounting ring is fixedly mounted on the pintle; the mounting seat is fixedly mounted on the connector; the buckle mechanism is assembled on the mounting ring and the mounting seat; the buckle mechanism is used for fixing the pintle on the connector; the buckle mechanism comprises a placement block fixedly mounted at the bottom of the mounting ring; and the placing groove is formed in the mounting seat. According to the buckle type connection anti-needle-falling injector, the situation that the needle head falls off can be effectively prevented, and the safety and reliability of injection operation are high.

The invention relates to a method for promoting tobacco leaves to quickly generate serotonin, and belongs to the field of biotechnology and plant metabolic engineering.The method includes the steps that serotonin in walnuts is identified to synthesize key genes, cDNA of the key genes is used as a template to amplify target fragments, a pHREAC expression vector is constructed and then introduced into agrobacterium tumefaciens, and the serotonin is obtained; and injecting the bacterial liquid into the lower epidermis of the tobacco leaf by using a syringe without a needle head for transient expression. And high-efficiency expression of exogenous genes can be realized within 3-5 days. The method does not need a complex procedure of gene operation breeding, does not require stable expression of transgenosis, is simple and convenient to operate, short in period and high in efficiency, and is suitable for rapid development of functional components and plant metabolism engineering application.

1. The name of the design product: intelligent needle-free injector. 2. The use of the design product: the design product is used for painless injection. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

A rigid needle shield for a syringe includes a main body comprising an internal sidewall defining a bore, and an end cap attached to the main body. The end cap includes at least one frangible tab connected to the sidewall of the main body. The rigid needle shield further includes an elastomeric insert extending through the bore and engaging the end cap. The at least one frangible tab is configured to break from the internal sidewall and advance through the bore upon application of a force to the end cap.

This invention provides a drug solution mixing and injection device, comprising a syringe, a stirring assembly, and a needle. The syringe includes a syringe barrel with an open front end, a piston slidably mounted inside the syringe barrel, and a gap forming a cavity between the piston and the front end of the syringe barrel. The front end of the syringe barrel is provided with a sealing element, forming a sealed cavity for pre-filling drug powder. The stirring assembly is detachably mounted on the front end of the syringe barrel for stirring the mixed drug in the sealed cavity after the drug solution is injected. The needle is detachably mounted on the front end of the syringe barrel for injecting the drug solution after stirring. This drug solution mixing and injection device is compact, easy to operate, has good stirring effect, and low production cost, making it easy to promote and use.