33results about How to "Achieve self-destruct" patented technology

The invention discloses a transfusion apparatus which has automatic air exhaustion and self destruction, and consists of a puncturing apparatus of a bottle stopper, a catheter and a dropping funnel, and the invention is characterized in that an air exhausting tube is arranged inside the dropping funnel, and the lower end of the air exhausting tube is communicated with a lower catheter, the upper end of the air exhausting tube is oblique, and when liquid medicine is injected into the dropping funnel, the extra air in the dropping funnel automatically exhausts through the air exhausting tube. Liquid medicine flows into the lower catheter through a transfusion orifice when the liquid surface is higher than the transfusion orifice of the air exhausting tube. The extra air in the dropping funnel exhausts before liquid medicine flows into the lower catheter, thus bubble is not formed and automatic air exhaustion is achieved. The residue liquid under the transfusion orifice in the dropping funnel can not be discharged, cleaned and reused, thus achieving the effect of self destruction.

The invention discloses a logistics tracing and package fidelity-retaining method based on the encrypted radio-frequency identification technology. The method provides an RFID electronic tag, whereinthe RFID electronic tag is arranged on a package for packaging goods. The method comprises the following steps of generating several key pairs by a technical service provider, assigning private keys respectively to a shipper and each logistics provider node and assigning a public key to a signer; before the shipping of the shipper, writing the goods information in the RFID electronic tag and encrypting the goods information; writing the corresponding logistics information in the RFID electronic tag respectively by each logistics provider node and encrypting the information; destroying the RFIDelectronic tag on an illegally opened package by an auxiliary mechanical device; after receiving a package by the signer, confirming whether the package is physically damaged or not; if the package is physically damaged, rejecting the package; otherwise, reading the information in the RFID electronic tags and signing after confirmation. According to the invention, goods during the logistics process can be traced, and the first responsibility of the shipper can be conveniently determined. During the logistics process, the auxiliary management for the responsibility of a carrier is realized.

The invention discloses method and device for applying fused messages and mails. The method may comprise the following steps of: accepting the information input and/or editing of a terminal user, wherein the information comprises the information of an opposite terminal and a message content; and choosing a method for sending the message content according to the information of the opposite terminal. The method and device for applying fused messages and mails disclosed by the invention can fuse a plurality of communication methods, thereby facilitating the terminal user uniformly managing the messages transmitted by different methods, and bringing great convenience to the terminal user for performing follow-up management operations such as viewing, editing and deleting on the messages.

The invention discloses a sensitive data secure sharing and self-destroying method for a cloud storage system. The method comprises the following steps of S1, designing a secure sharing and self-destroying system for the cloud storage system; S2, initializing the system to generate system parameters and a main key; S3, encrypting a sensitive data file and setting an authorization period; S4, setting fine granularity access control within the authorization period; and S5, carrying out data self-destroying on the encrypted sensitive data file within the authorization period after the sensitive data file is expired. According to the method, a user is supported to define the authorization period, in a practical cloud application scene, each data item can be related to a group of attributes, and each attribute is related to a specification of a time interval. According to the method, the fine granularity access control also can be provided; if a moment is not in an appointed time interval, a ciphertext cannot be decrypted, namely, the ciphertext is self-destroyed; and even if a secure key is expired, the ciphertext cannot be decrypted by anyone, so the secure data self-destroying with the fine granularity access control is realized.

The invention relates to the technical field of injection needles, in particular to a hidden self-destruction needle, which comprises an injection needle and a needle hiding device, the needle hiding device comprises a needle hiding cap, a protective cap, a guide sleeve and an elastic element, a clamping groove set is formed in the guide sleeve and comprises a guide groove and a locking groove, of which the inner ends are communicated with each other; a tooth column is arranged on the protective cap and is positioned in the guide groove; the first inclined plane matching structure and the second inclined plane matching structure are both used for enabling the protective cap to rotate in the same direction while axially displacing, the locking groove is used for blocking the tooth column in the locking groove, so that the protective cap cannot axially displace inwards. The hidden self-destruction needle head can shield the injection needle head, and the hiding function of the injection needle head is achieved; meanwhile, after being used once, the syringe needle can be automatically locked and hidden again, so that the syringe needle is prevented from being repeatedly used, and self-destruction is realized. In addition, the instrument does not need to provide additional destroying actions manually, operation is convenient, the safety performance is greatly improved, and the market prospect is good.

The invention discloses a non-volatile memory-based data self-destruction method and system. The method is characterized in that different storage areas are divided in a storage module, and differentstorage time is set; and data is self-destroyed in a specific storage time in the different storage areas, or a read-write mode is dynamically selected for each storage area to perform different read-write operations, and self-destruction time is set by a user. The system comprises a storage data interface, a non-volatile memory controller, the storage areas and a storage data conversion center; and a storage area analysis module and a storage mode control module are arranged in the non-volatile memory controller. Based on the physical properties of a non-volatile memory, the self-destructionof the data in a fixed time is achieved through the process and the physical properties of the memory; by worsening the holding property of a device, the self-destruction of the data in the fixed timeis realized; the data self-destruction at different time can be realized according to the requirements of the user; and the convenience of data storage is realized.

The invention provides a self-destruction four-wing speculum. The self-destruction four-wing speculum comprises an upper expansion piece, a lower expansion piece, at least one side expansion piece anda positioning sleeve, wherein the upper expansion piece and the lower expansion piece are rotationally connected and positioned through an expansion positioning device, and the positioning sleeve isrotationally connected with the upper expansion piece and the side expansion pieces; and the self-destruction four-wing speculum further comprises a first expansion positioning device composed of a hook buckle expansion positioning self-destruction device, and a second expansion positioning device which is formed by meshing a second positioning hook with a second handle on the side expansion pieceand second positioning buckles above the two ends of the positioning sleeve. The self-destruction four-wing speculum is simple in structure, convenient to operate, easy to manufacture, economical, practical and safe and effective to use

The invention relates to a core pin locking device for a safety syringe, which comprises an outer sleeve, a piston and a core pin, wherein, the rear part of the outer sleeve is provided with a locking ring for the core pin which is a cavity through ring composed by two integrated or split semi-circular rings. An elastic damping claw which inclines inwards is arranged on the locking ring, the tail end of the elastic damping claw integrated with a wall body of the locking ring for the core pin as a whole; a positioning boss which is used for positioning by coordination with the elastic damping claw is correspondingly arranged on the core pin; an internal cavity at the front end of the locking ring for the core pin is provided with a concave arc face and a stop boss which is matched with the core pin is correspondingly arranged on the core pin. After the injection action of the invention is finished, the core pin when drawn back can drive a syringe head component to retract to the internal cavity of the outer sleeve, and then to the position of the locking ring for the core pin at the rear end of the outer sleeve; meanwhile, the core pin and the locking ring for the core pin coordinate for locking and the core pin fails to move forwards or backwards. The core pin locking device of the invention has reasonable structure, convenient and stable application and high safety as well as reasonability of the locking of the core pin, and can realize self-disposal after one-off injection.

The present invention relates to a method for implementing a CMS based system for grouped security management of files. According to the method, accessing persons are divided into a plurality of accessing groups; a CMS security index table is created for files; a security identifier is set for each accessing group, and the accessing group is forbidden to access files with a security identifier and is allowed to access files without a security identifier. An access password and a destruction password are set for each accessing group, wherein the access password is used for entering the access group, and is used for accessing non-confidential files of the accessing group; and the destruction password is used for destructing confidential files in the group. Encryption and decryption are applied to storage and access of confidential files, and a database may also be used for storage. According to the method, a function of locking in case of a wrong password, a function of automatic file destruction in case of a wrong password, a function of an automatic exit in case of no operation, and a function of a manual exit are provided. The method eliminates the defect of that an identity opens all confidential files, is applicable to mobile phone APP/APK design for privacy protection, and is applicable to security design of removable storage products for mobile phones or PCs.

A high-safety self-destroy expensive injector is composed of a needle, a connecting holder connected to said needle by spiral thread and with a central hole having a toothed hole and a matching hole, a rubber piston with a toothed front end having a matching head, a push rod and a pipe. When said push rod is pushed to bottom of pipe, said matching head is matched with said matching hole. When said push rod is withdrawn, the needle and connecting holder is pulled into the pipe.

The invention provides a safety syringe capable of pulling back a syringe needle, belonging to the technical field of medical apparatus and solving the problems that the existing safety syringe capable of pulling back a syringe needle has unreasonable design, is hard to realize automatic assembling and has higher production cost. The safety syringe capable of pulling back a syringe needle comprises a syringe barrel and a syringe rod arranged in the syringe barrel; the front end of the syringe rod is sleeved with a rubber stopper; the front end of the syringe barrel is provided with a needle head seat; the center of the needle head is provided with a liquid through hole; a positioning structure which can prevent the axial forward movement of the needle head seat; the syringe barrel is internally provided with a limiting ring used for preventing the axial backward movement of the needle head seat; the front end of the syringe rod can penetrate through the limiting ring and is connected with the needle head seat; and the limiting ring is fixedly connected with the inner wall of the syringe barrel by an easy fracture structure. The safety syringe capable of pulling back a syringe needle can realize axial positioning of the needle head seat, and has easy assembling and high working stability.

The invention relates to a quantitative self-destruction syringe, and belongs to the field of sterile medical instruments. The quantitative self-destruction syringe comprises an outer sleeve, a core rod and a piston, and a pull-back ring and a check ring are sequentially arranged on the core rod; a quantitative self-destruction clamping seat is arranged at the opening end of the outer sleeve, an elastic sleeve piece is arranged in the quantitative self-destruction clamping seat, a quantitative boss is arranged on the inner wall of the quantitative self-destruction clamping seat in an outward protruding mode, and the elastic sleeve piece is arranged outside the core rod in a sleeving mode; the elastic sleeve comprises a sleeve body, an elastic buckle arranged around the central axis is arranged at the front end of the sleeve body, a hollow positioning boss is arranged at the rear end of the sleeve body, a quantitative clamping groove is inwards formed in the outer surface of the positioning boss, and the quantitative clamping groove and the quantitative boss are arranged in a matched mode; a pull-back ring is arranged at the front end of the core rod, and a check ring is arranged in the middle of the core rod. According to the self-destruction syringe, liquid can be quantitatively sucked, self-destruction is completed after injection, the self-destruction state is stable, safe and reliable, bubbles are not increased in the suction process, secondary exhaust is not needed, the workload of medical staff is reduced, infection is reduced, and use is safer.

The invention discloses a novel push-out self-destructive injector. A needle seat mounting column is arranged at the upper end of an injector barrel body, a needle seat is installed in the needle seat mounting column, a needle tube is arranged at the center of the needle seat, a baffle ring is disposed at the upper end of the needle seat, the upper end of the needle seat mounting column is inwards contracted to form a clamping ring which is matched with the baffle ring, the lower end of the needle seat is tightly sleeved with a seal ring which is tightly attached to the inner wall of the needle seat mounting column, a piston mounting portion is installed at the upper end of a push rod in the barrel body, an ejecting rod is formed in the middle of the piston mounting portion, the ejecting rod enables the needle seat to overcome resistance of the clamping ring on the baffle ring and then ejects the needle seat out of the needle seat mounting column when upwards pushed to a certain position, a piston is sleeved on the piston mounting portion, and a deforming cavity is arranged between the middle of the piston and the outer wall of the ejecting rod. According to the novel push-out self-destructive injector, the liquid medicine residues are minimal, which are close to 1/3 of national standards, environmental protection during subsequent recycling or destruction of the injector is facilitated, the self-destruction is complete, the operation is simple and convenient, and the novel push-out self-destructive injector is suitable for being used by medical workers.