Abstract: The present invention relates to a filtering syringe, and more particularly, to an apparatus obtained by improving a syringe provided with a filter means for filtering foreign substances such as glass fragments of an ampoule, so as to prevent an injection needle or an injection flow passage from being contaminated with the foreign substances while allowing a liquid medicine to be smoothly sucked with a smaller force. The filtering syringe is configured such that the injection needle or the injection flow passage is isolated from the suction flow passage which is upstream of the filter means and in which the foreign substances may remain together with the liquid medicine, thereby allowing the liquid medicine to be sucked with a force less than that required for a conventional syringe and thus maximizing user's convenience and marketability of the syringe.

Abstract: The present invention relates to a syringe, and more particularly, to an apparatus obtained by improving a conventional syringe formed with an injection flow passage including an injection needle, so as to share a portion of the injection flow passage except the injection needle or to form a suction flow passage completely independent of the injection flow passage, thereby further smoothing suction of a liquid medicine. The syringe is configured such that the separate suction flow passage bypassing the injection needle is formed in the conventional syringe to more smoothly perform suction of the liquid medicine, thereby maximizing user's convenience and marketability of the conventional syringe, and further configured to forcibly close the suction flow passage upon injection of the liquid medicine.

Abstract: The present invention relates to a filtering syringe, and more particularly, to an apparatus obtained by improving a syringe provided with a filter means for filtering foreign substances such as glass fragments of an ampoule, so as to prevent the foreign substances from being injected together with a liquid medicine while allowing the liquid medicine to be smoothly sucked and injected with a small force, especially even though a filter means having micro-pores is employed. The filtering syringe is configured such that the filter means is provided in the injection flow passage to prevent the foreign substances from being injected together with the liquid medicine while enabling the liquid medicine to be more smoothly sucked and injected despite employing the filter means having the micro-pores, thereby maximizing user's convenience and marketability of the syringe.

Abstract: The present invention relates to a syringe, and more particularly, to an apparatus obtained by improving an conventional syringe formed with an injection flow passage including an injection needle, so as to share a portion of the injection flow passage except the injection needle or to form a suction flow passage completely independent of the injection flow passage, thereby further smoothing suction of a liquid medicine. The syringe is configured such that the separate suction flow passage bypassing the injection needle is formed in an conventional syringe to more smoothly perform the suction of the liquid medicine, thereby maximizing user's convenience and marketability of the product.

Abstract: The present invention relates to an outer cap of a liquid medicine-injecting device, and more particularly, to an apparatus in which an outer cap configured to temporarily form a suction flow passage only upon suction of a liquid medicine and to be removed for opening an injection flow passage upon injection of the liquid medicine is improved in a liquid medicine-injecting device including a filter for filtering foreign substances contained in a liquid medicine, so that firm sealing is established between an inner peripheral surface of the outer cap and a peripheral surface of the liquid medicine-injecting device so as to reliably generate a negative pressure in the injection flow passage and particularly to prevent the liquid medicine from penetrating an injection needle upon suction of the liquid medicine.

Abstract: The present invention relates to a filtering syringe, and more particularly, to an apparatus obtained by improving a syringe provided with a filter means for filtering foreign substances such as glass fragments of an ampoule, so that opening or closing of a one-way valve means is controlled depending on whether a cap is separated, and that the filter means can be also designed to be larger in cross-sectional area so as to allow a liquid medicine to be smoothly sucked with a smaller force. The filtering syringe is configured such that the liquid medicine is filtered and sucked through the filter means having the larger cross-sectional area even with the smaller force in a cap-assembled state and the one-way valve means is automatically closed to allow the liquid medicine to be injected in a cap-separated state, thereby maximizing user's convenience and marketability of the syringe.

Abstract: The present invention relates to a filtering injection needle assembly for a syringe, and more particularly, to an apparatus for further facilitating suction of an injection liquid. The filtering injection needle assembly includes an injection needle (100) including a needle (110) and a hub (120); and a cap (200) configured to receive the needle (110) and including a filter (210), wherein the hub (200) is formed with a through-hole (121) for communication between an inside and an outside of the hub, and opening/closing of the through-hole (121) is controlled by a one-way valve means (300). The filtering injection needle assembly blocks foreign substances introduced into the syringe, thereby enhancing safety, and wherein the filtering injection needle assembly has various types of one-way valve means provided in the hub of the injection needle to further facilitate the suction of the injection liquid.

Abstract: The present invention relates to a filtering syringe, and more particularly, to an apparatus obtained by improving a syringe provided with a filter means for filtering foreign substances such as glass fragments of an ampoule, so that opening or closing of a one-way valve means is controlled depending on whether a cap is separated, and that the filter means can be also designed to be larger in cross-sectional area so as to allow a liquid medicine to be smoothly sucked with a smaller force. The filtering syringe is configured such that the liquid medicine is filtered and sucked through the filter means having the larger cross-sectional area even with the smaller force in a cap-assembled state and the one-way valve means is automatically closed to allow the liquid medicine to be injected in a cap-separated state, thereby maximizing user's convenience and marketability of the syringe.

Abstract: The present invention relates to a syringe, and more particularly, to an apparatus obtained by improving an conventional syringe formed with an injection flow passage including an injection needle, so as to share a portion of the injection flow passage except the injection needle or to form a suction flow passage completely independent of the injection flow passage, thereby further smoothing suction of a liquid medicine. The syringe is configured such that the separate suction flow passage bypassing the injection needle is formed in a conventional syringe to more smoothly perform suction of the liquid medicine, thereby maximizing user's convenience and marketability of the product, and further configured to forcibly close the suction flow passage upon injection of the liquid medicine.

Abstract: The present invention relates to a filtering syringe, and more particularly, to an apparatus obtained by improving a syringe provided with a filter means for filtering foreign substances such as glass fragments of an ampoule, so as to prevent the foreign substances from being injected together with a liquid medicine while allowing the liquid medicine to be smoothly sucked and injected with a small force, especially even though a filter means having micro-pores is employed. The filtering syringe is configured such that the filter means is provided in the injection flow passage to prevent the foreign substances from being injected together with the liquid medicine while enabling the liquid medicine to be more smoothly sucked and injected despite employing the filter means having the micro-pores, thereby maximizing user's convenience and marketability of the syringe.

Abstract: The present invention relates to a syringe, and more particularly, to an apparatus obtained by improving an conventional syringe formed with an injection flow passage including an injection needle, so as to share a portion of the injection flow passage except the injection needle or to form a suction flow passage completely independent of the injection flow passage, thereby further smoothing suction of a liquid medicine. The syringe is configured such that the separate suction flow passage bypassing the injection needle is formed in an conventional syringe to more smoothly perform the suction of the liquid medicine, thereby maximizing user's convenience and marketability of the product.

Abstract: The present invention relates to a filtering syringe, and more particularly, to an apparatus obtained by improving a syringe provided with a filter means for filtering foreign substances such as glass fragments of an ampoule, so as to prevent an injection needle or an injection flow passage from being contaminated with the foreign substances while allowing a liquid medicine to be smoothly sucked with a smaller force. The filtering syringe is configured such that the injection needle or the injection flow passage is isolated from the suction flow passage which is upstream of the filter means and in which the foreign substances may remain together with the liquid medicine, thereby allowing the liquid medicine to be sucked with a force less than that required for a conventional syringe and thus maximizing user's convenience and marketability of the syringe.

Abstract: The present invention relates to a filtering injection needle assembly for a syringe, and more particularly, to an apparatus for further facilitating suction of an injection liquid. The filtering injection needle assembly includes an injection needle (100) including a needle (110) and a hub (120); and a cap (200) configured to receive the needle (110) and including a filter (210), wherein the hub (200) is formed with a through-hole (121) for communication between an inside and an outside of the hub, and opening/closing of the through-hole (121) is controlled by a one-way valve means (300). The filtering injection needle assembly blocks foreign substances introduced into the syringe, thereby enhancing safety, and wherein the filtering injection needle assembly has various types of one-way valve means provided in the hub of the injection needle to further facilitate the suction of the injection liquid.